From 8f98d4baf0ddd4b4efdd9db69467bad482ff59ab Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 4 Dec 2018 14:15:18 +0000
Subject: [PATCH 001/118] drm/i915/selftests: Reorder request allocation vs vma
 pinning

Impose a restraint that we have all vma pinned for a request prior to
its allocation. This is to simplify request construction, and should
facilitate unravelling the lock interdependencies later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204141522.13640-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/selftests/huge_pages.c   |  33 ++--
 drivers/gpu/drm/i915/selftests/igt_spinner.c  | 106 ++++++-------
 .../gpu/drm/i915/selftests/intel_hangcheck.c  | 149 +++++++++---------
 3 files changed, 143 insertions(+), 145 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c
index 26c065c8d2c0..a0c7cbc212ba 100644
--- a/drivers/gpu/drm/i915/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/selftests/huge_pages.c
@@ -972,7 +972,6 @@ static int gpu_write(struct i915_vma *vma,
 {
 	struct i915_request *rq;
 	struct i915_vma *batch;
-	int flags = 0;
 	int err;
 
 	GEM_BUG_ON(!intel_engine_can_store_dword(engine));
@@ -981,14 +980,14 @@ static int gpu_write(struct i915_vma *vma,
 	if (err)
 		return err;
 
-	rq = i915_request_alloc(engine, ctx);
-	if (IS_ERR(rq))
-		return PTR_ERR(rq);
-
 	batch = gpu_write_dw(vma, dword * sizeof(u32), value);
-	if (IS_ERR(batch)) {
-		err = PTR_ERR(batch);
-		goto err_request;
+	if (IS_ERR(batch))
+		return PTR_ERR(batch);
+
+	rq = i915_request_alloc(engine, ctx);
+	if (IS_ERR(rq)) {
+		err = PTR_ERR(rq);
+		goto err_batch;
 	}
 
 	err = i915_vma_move_to_active(batch, rq, 0);
@@ -996,21 +995,21 @@ static int gpu_write(struct i915_vma *vma,
 		goto err_request;
 
 	i915_gem_object_set_active_reference(batch->obj);
-	i915_vma_unpin(batch);
-	i915_vma_close(batch);
-
-	err = engine->emit_bb_start(rq,
-				    batch->node.start, batch->node.size,
-				    flags);
-	if (err)
-		goto err_request;
 
 	err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE);
 	if (err)
-		i915_request_skip(rq, err);
+		goto err_request;
 
+	err = engine->emit_bb_start(rq,
+				    batch->node.start, batch->node.size,
+				    0);
 err_request:
+	if (err)
+		i915_request_skip(rq, err);
 	i915_request_add(rq);
+err_batch:
+	i915_vma_unpin(batch);
+	i915_vma_close(batch);
 
 	return err;
 }
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c b/drivers/gpu/drm/i915/selftests/igt_spinner.c
index 8cd34f6e6859..0e70df0230b8 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.c
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c
@@ -68,49 +68,66 @@ static u64 hws_address(const struct i915_vma *hws,
 	return hws->node.start + seqno_offset(rq->fence.context);
 }
 
-static int emit_recurse_batch(struct igt_spinner *spin,
-			      struct i915_request *rq,
-			      u32 arbitration_command)
+static int move_to_active(struct i915_vma *vma,
+			  struct i915_request *rq,
+			  unsigned int flags)
 {
-	struct i915_address_space *vm = &rq->gem_context->ppgtt->vm;
-	struct i915_vma *hws, *vma;
-	u32 *batch;
 	int err;
 
-	vma = i915_vma_instance(spin->obj, vm, NULL);
-	if (IS_ERR(vma))
-		return PTR_ERR(vma);
-
-	hws = i915_vma_instance(spin->hws, vm, NULL);
-	if (IS_ERR(hws))
-		return PTR_ERR(hws);
-
-	err = i915_vma_pin(vma, 0, 0, PIN_USER);
+	err = i915_vma_move_to_active(vma, rq, flags);
 	if (err)
 		return err;
 
-	err = i915_vma_pin(hws, 0, 0, PIN_USER);
-	if (err)
-		goto unpin_vma;
-
-	err = i915_vma_move_to_active(vma, rq, 0);
-	if (err)
-		goto unpin_hws;
-
 	if (!i915_gem_object_has_active_reference(vma->obj)) {
 		i915_gem_object_get(vma->obj);
 		i915_gem_object_set_active_reference(vma->obj);
 	}
 
-	err = i915_vma_move_to_active(hws, rq, 0);
-	if (err)
-		goto unpin_hws;
+	return 0;
+}
 
-	if (!i915_gem_object_has_active_reference(hws->obj)) {
-		i915_gem_object_get(hws->obj);
-		i915_gem_object_set_active_reference(hws->obj);
+struct i915_request *
+igt_spinner_create_request(struct igt_spinner *spin,
+			   struct i915_gem_context *ctx,
+			   struct intel_engine_cs *engine,
+			   u32 arbitration_command)
+{
+	struct i915_address_space *vm = &ctx->ppgtt->vm;
+	struct i915_request *rq = NULL;
+	struct i915_vma *hws, *vma;
+	u32 *batch;
+	int err;
+
+	vma = i915_vma_instance(spin->obj, vm, NULL);
+	if (IS_ERR(vma))
+		return ERR_CAST(vma);
+
+	hws = i915_vma_instance(spin->hws, vm, NULL);
+	if (IS_ERR(hws))
+		return ERR_CAST(hws);
+
+	err = i915_vma_pin(vma, 0, 0, PIN_USER);
+	if (err)
+		return ERR_PTR(err);
+
+	err = i915_vma_pin(hws, 0, 0, PIN_USER);
+	if (err)
+		goto unpin_vma;
+
+	rq = i915_request_alloc(engine, ctx);
+	if (IS_ERR(rq)) {
+		err = PTR_ERR(rq);
+		goto unpin_hws;
 	}
 
+	err = move_to_active(vma, rq, 0);
+	if (err)
+		goto cancel_rq;
+
+	err = move_to_active(hws, rq, 0);
+	if (err)
+		goto cancel_rq;
+
 	batch = spin->batch;
 
 	*batch++ = MI_STORE_DWORD_IMM_GEN4;
@@ -127,35 +144,18 @@ static int emit_recurse_batch(struct igt_spinner *spin,
 
 	i915_gem_chipset_flush(spin->i915);
 
-	err = rq->engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, 0);
+	err = engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, 0);
 
+cancel_rq:
+	if (err) {
+		i915_request_skip(rq, err);
+		i915_request_add(rq);
+	}
 unpin_hws:
 	i915_vma_unpin(hws);
 unpin_vma:
 	i915_vma_unpin(vma);
-	return err;
-}
-
-struct i915_request *
-igt_spinner_create_request(struct igt_spinner *spin,
-			   struct i915_gem_context *ctx,
-			   struct intel_engine_cs *engine,
-			   u32 arbitration_command)
-{
-	struct i915_request *rq;
-	int err;
-
-	rq = i915_request_alloc(engine, ctx);
-	if (IS_ERR(rq))
-		return rq;
-
-	err = emit_recurse_batch(spin, rq, arbitration_command);
-	if (err) {
-		i915_request_add(rq);
-		return ERR_PTR(err);
-	}
-
-	return rq;
+	return err ? ERR_PTR(err) : rq;
 }
 
 static u32
diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
index 40efbed611de..60a4bd9405be 100644
--- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
@@ -103,53 +103,88 @@ static u64 hws_address(const struct i915_vma *hws,
 	return hws->node.start + offset_in_page(sizeof(u32)*rq->fence.context);
 }
 
-static int emit_recurse_batch(struct hang *h,
-			      struct i915_request *rq)
+static int move_to_active(struct i915_vma *vma,
+			  struct i915_request *rq,
+			  unsigned int flags)
 {
-	struct drm_i915_private *i915 = h->i915;
-	struct i915_address_space *vm =
-		rq->gem_context->ppgtt ?
-		&rq->gem_context->ppgtt->vm :
-		&i915->ggtt.vm;
-	struct i915_vma *hws, *vma;
-	unsigned int flags;
-	u32 *batch;
 	int err;
 
-	vma = i915_vma_instance(h->obj, vm, NULL);
-	if (IS_ERR(vma))
-		return PTR_ERR(vma);
-
-	hws = i915_vma_instance(h->hws, vm, NULL);
-	if (IS_ERR(hws))
-		return PTR_ERR(hws);
-
-	err = i915_vma_pin(vma, 0, 0, PIN_USER);
+	err = i915_vma_move_to_active(vma, rq, flags);
 	if (err)
 		return err;
 
-	err = i915_vma_pin(hws, 0, 0, PIN_USER);
-	if (err)
-		goto unpin_vma;
-
-	err = i915_vma_move_to_active(vma, rq, 0);
-	if (err)
-		goto unpin_hws;
-
 	if (!i915_gem_object_has_active_reference(vma->obj)) {
 		i915_gem_object_get(vma->obj);
 		i915_gem_object_set_active_reference(vma->obj);
 	}
 
-	err = i915_vma_move_to_active(hws, rq, 0);
-	if (err)
-		goto unpin_hws;
+	return 0;
+}
 
-	if (!i915_gem_object_has_active_reference(hws->obj)) {
-		i915_gem_object_get(hws->obj);
-		i915_gem_object_set_active_reference(hws->obj);
+static struct i915_request *
+hang_create_request(struct hang *h, struct intel_engine_cs *engine)
+{
+	struct drm_i915_private *i915 = h->i915;
+	struct i915_address_space *vm =
+		h->ctx->ppgtt ? &h->ctx->ppgtt->vm : &i915->ggtt.vm;
+	struct i915_request *rq = NULL;
+	struct i915_vma *hws, *vma;
+	unsigned int flags;
+	u32 *batch;
+	int err;
+
+	if (i915_gem_object_is_active(h->obj)) {
+		struct drm_i915_gem_object *obj;
+		void *vaddr;
+
+		obj = i915_gem_object_create_internal(h->i915, PAGE_SIZE);
+		if (IS_ERR(obj))
+			return ERR_CAST(obj);
+
+		vaddr = i915_gem_object_pin_map(obj,
+						i915_coherent_map_type(h->i915));
+		if (IS_ERR(vaddr)) {
+			i915_gem_object_put(obj);
+			return ERR_CAST(vaddr);
+		}
+
+		i915_gem_object_unpin_map(h->obj);
+		i915_gem_object_put(h->obj);
+
+		h->obj = obj;
+		h->batch = vaddr;
 	}
 
+	vma = i915_vma_instance(h->obj, vm, NULL);
+	if (IS_ERR(vma))
+		return ERR_CAST(vma);
+
+	hws = i915_vma_instance(h->hws, vm, NULL);
+	if (IS_ERR(hws))
+		return ERR_CAST(hws);
+
+	err = i915_vma_pin(vma, 0, 0, PIN_USER);
+	if (err)
+		return ERR_PTR(err);
+
+	err = i915_vma_pin(hws, 0, 0, PIN_USER);
+	if (err)
+		goto unpin_vma;
+
+	rq = i915_request_alloc(engine, h->ctx);
+	if (IS_ERR(rq)) {
+		err = PTR_ERR(rq);
+		goto unpin_hws;
+	}
+
+	err = move_to_active(vma, rq, 0);
+	if (err)
+		goto cancel_rq;
+
+	err = move_to_active(hws, rq, 0);
+	if (err)
+		goto cancel_rq;
+
 	batch = h->batch;
 	if (INTEL_GEN(i915) >= 8) {
 		*batch++ = MI_STORE_DWORD_IMM_GEN4;
@@ -213,52 +248,16 @@ static int emit_recurse_batch(struct hang *h,
 
 	err = rq->engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, flags);
 
+cancel_rq:
+	if (err) {
+		i915_request_skip(rq, err);
+		i915_request_add(rq);
+	}
 unpin_hws:
 	i915_vma_unpin(hws);
 unpin_vma:
 	i915_vma_unpin(vma);
-	return err;
-}
-
-static struct i915_request *
-hang_create_request(struct hang *h, struct intel_engine_cs *engine)
-{
-	struct i915_request *rq;
-	int err;
-
-	if (i915_gem_object_is_active(h->obj)) {
-		struct drm_i915_gem_object *obj;
-		void *vaddr;
-
-		obj = i915_gem_object_create_internal(h->i915, PAGE_SIZE);
-		if (IS_ERR(obj))
-			return ERR_CAST(obj);
-
-		vaddr = i915_gem_object_pin_map(obj,
-						i915_coherent_map_type(h->i915));
-		if (IS_ERR(vaddr)) {
-			i915_gem_object_put(obj);
-			return ERR_CAST(vaddr);
-		}
-
-		i915_gem_object_unpin_map(h->obj);
-		i915_gem_object_put(h->obj);
-
-		h->obj = obj;
-		h->batch = vaddr;
-	}
-
-	rq = i915_request_alloc(engine, h->ctx);
-	if (IS_ERR(rq))
-		return rq;
-
-	err = emit_recurse_batch(h, rq);
-	if (err) {
-		i915_request_add(rq);
-		return ERR_PTR(err);
-	}
-
-	return rq;
+	return err ? ERR_PTR(err) : rq;
 }
 
 static u32 hws_seqno(const struct hang *h, const struct i915_request *rq)

From 0819936247c5133593c971e7121661cc32477990 Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Tue, 4 Dec 2018 17:15:30 +0000
Subject: [PATCH 002/118] drm/i915: Dial down workaround debug messages

For selftests like live_hangcheck, which does thousands of reset per
second, it is too verbose to log every time we re-apply the workarounds.

Remove those messages since, coupled with the dedicated selftest, it is
sufficient to only log the number of recorded workarounds at init time.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204171530.28583-1-tvrtko.ursulin@linux.intel.com
---
 drivers/gpu/drm/i915/intel_workarounds.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 4f41e326f3f3..6bcac78a9c36 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -955,8 +955,6 @@ wa_list_apply(struct drm_i915_private *dev_priv, const struct i915_wa_list *wal)
 
 	intel_uncore_forcewake_put__locked(dev_priv, fw);
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, flags);
-
-	DRM_DEBUG_DRIVER("Applied %u %s workarounds\n", wal->count, wal->name);
 }
 
 void intel_gt_apply_workarounds(struct drm_i915_private *dev_priv)
@@ -1126,8 +1124,6 @@ void intel_engine_apply_whitelist(struct intel_engine_cs *engine)
 	for (; i < RING_MAX_NONPRIV_SLOTS; i++)
 		I915_WRITE(RING_FORCE_TO_NONPRIV(base, i),
 			   i915_mmio_reg_offset(RING_NOPID(base)));
-
-	DRM_DEBUG_DRIVER("Applied %u %s workarounds\n", wal->count, wal->name);
 }
 
 static void rcs_engine_wa_init(struct intel_engine_cs *engine)

From 7c5c641a930ed06ca317ee39faee7d5824266348 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:33:55 -0800
Subject: [PATCH 003/118] drm/i915: Disable PSR in Apple panels
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

i915 yet don't support PSR in Apple panels, so lets keep it disabled
while we work on that.

v2: Renamed DP_DPCD_QUIRK_PSR_NOT_CURRENTLY_SUPPORTED to
DP_DPCD_QUIRK_NO_PSR (Ville)

v3:
Adding documentation to DP_DPCD_QUIRK_NO_PSR(Dhinakaran and Jani)
Fixed typo in comment of the new quirk entry(Jani)

Fixes: 598c6cfe0690 (drm/i915/psr: Enable PSR1 on gen-9+ HW)
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-1-jose.souza@intel.com
---
 drivers/gpu/drm/drm_dp_helper.c  | 2 ++
 drivers/gpu/drm/i915/intel_psr.c | 6 ++++++
 include/drm/drm_dp_helper.h      | 7 +++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 2d6c491a0542..516e82d0ed50 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1273,6 +1273,8 @@ static const struct dpcd_quirk dpcd_quirk_list[] = {
 	{ OUI(0x00, 0x22, 0xb9), DEVICE_ID_ANY, true, BIT(DP_DPCD_QUIRK_CONSTANT_N) },
 	/* LG LP140WF6-SPM1 eDP panel */
 	{ OUI(0x00, 0x22, 0xb9), DEVICE_ID('s', 'i', 'v', 'a', 'r', 'T'), false, BIT(DP_DPCD_QUIRK_CONSTANT_N) },
+	/* Apple panels need some additional handling to support PSR */
+	{ OUI(0x00, 0x10, 0xfa), DEVICE_ID_ANY, false, BIT(DP_DPCD_QUIRK_NO_PSR) }
 };
 
 #undef OUI
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 419e56342523..f71970df9936 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -274,10 +274,16 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
 	DRM_DEBUG_KMS("eDP panel supports PSR version %x\n",
 		      intel_dp->psr_dpcd[0]);
 
+	if (drm_dp_has_quirk(&intel_dp->desc, DP_DPCD_QUIRK_NO_PSR)) {
+		DRM_DEBUG_KMS("PSR support not currently available for this panel\n");
+		return;
+	}
+
 	if (!(intel_dp->edp_dpcd[1] & DP_EDP_SET_POWER_CAP)) {
 		DRM_DEBUG_KMS("Panel lacks power state control, PSR cannot be enabled\n");
 		return;
 	}
+
 	dev_priv->psr.sink_support = true;
 	dev_priv->psr.sink_sync_latency =
 		intel_dp_get_sink_sync_latency(intel_dp);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 5736c942c85b..c33e89c51d9f 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1365,6 +1365,13 @@ enum drm_dp_quirk {
 	 * to 16 bits. So will give a constant value (0x8000) for compatability.
 	 */
 	DP_DPCD_QUIRK_CONSTANT_N,
+	/**
+	 * @DP_DPCD_QUIRK_NO_PSR
+	 *
+	 * The device does not support PSR even if reports that it supports or
+	 * driver still need to implement proper handling for such device.
+	 */
+	DP_DPCD_QUIRK_NO_PSR,
 };
 
 /**

From 60cae44251e8f312381c82322ab6f68e3a481113 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:33:56 -0800
Subject: [PATCH 004/118] drm/i915/psr: Don't tell sink that main link will be
 active while is active PSR2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For PSR2 there is no register to tell HW to keep main link enabled
while PSR2 is active, so don't configure sink DPCD with a
misleading value.

v2: Moving the set of DP_PSR_CRC_VERIFICATION to the else block
of 'if (dev_priv->psr.psr2_enabled)' to another patch. (Rodrigo)

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-2-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index f71970df9936..90759f754952 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -395,10 +395,11 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp)
 		drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG,
 				   DP_ALPM_ENABLE);
 		dpcd_val |= DP_PSR_ENABLE_PSR2;
+	} else {
+		if (dev_priv->psr.link_standby)
+			dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE;
 	}
 
-	if (dev_priv->psr.link_standby)
-		dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE;
 	if (!dev_priv->psr.psr2_enabled && INTEL_GEN(dev_priv) >= 8)
 		dpcd_val |= DP_PSR_CRC_VERIFICATION;
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, dpcd_val);

From de570946c0e5a44568c4d40d52042100936f93fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:33:57 -0800
Subject: [PATCH 005/118] drm/i915/psr: Set PSR CRC verification bit in sink
 inside PSR1 block
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As we have a else block for the 'if (dev_priv->psr.psr2_enabled) {'
and this bit is only set for PSR1 move it to that block to make it
more easy to read.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-3-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 90759f754952..8342c33ede04 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -398,10 +398,11 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp)
 	} else {
 		if (dev_priv->psr.link_standby)
 			dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE;
+
+		if (INTEL_GEN(dev_priv) >= 8)
+			dpcd_val |= DP_PSR_CRC_VERIFICATION;
 	}
 
-	if (!dev_priv->psr.psr2_enabled && INTEL_GEN(dev_priv) >= 8)
-		dpcd_val |= DP_PSR_CRC_VERIFICATION;
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, dpcd_val);
 
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);

From 98751b8cd608a38f810e190c58c94906923ff668 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:33:58 -0800
Subject: [PATCH 006/118] drm/i915/psr: Enable sink to trigger a interruption
 on PSR2 CRC mismatch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

eDP spec states 2 different bits to enable sink to trigger a
interruption when there is a CRC mismatch.
DP_PSR_CRC_VERIFICATION is for PSR only and
DP_PSR_IRQ_HPD_WITH_CRC_ERRORS is for PSR2 only.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-4-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 8342c33ede04..e463bef3c804 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -394,7 +394,7 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp)
 	if (dev_priv->psr.psr2_enabled) {
 		drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG,
 				   DP_ALPM_ENABLE);
-		dpcd_val |= DP_PSR_ENABLE_PSR2;
+		dpcd_val |= DP_PSR_ENABLE_PSR2 | DP_PSR_IRQ_HPD_WITH_CRC_ERRORS;
 	} else {
 		if (dev_priv->psr.link_standby)
 			dpcd_val |= DP_PSR_MAIN_LINK_ACTIVE;

From d15f9cdd59bab73e7edadee794efdd47bcbc1a7a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:33:59 -0800
Subject: [PATCH 007/118] drm/i915/icl: Do not change reserved registers
 related to PSR2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For ICL the bit 12 of CHICKEN_TRANS is reserved so we should not
touch it and as by default VSC_DATA_SEL_SOFTWARE_CONTROL is already
unset in gen10 + GLK we can just drop it and fix for both gens.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-5-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index e463bef3c804..b513a15d60e1 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -649,17 +649,14 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 		hsw_psr_setup_aux(intel_dp);
 
-	if (dev_priv->psr.psr2_enabled) {
+	if (dev_priv->psr.psr2_enabled && (IS_GEN9(dev_priv) &&
+					   !IS_GEMINILAKE(dev_priv))) {
 		i915_reg_t reg = gen9_chicken_trans_reg(dev_priv,
 							cpu_transcoder);
 		u32 chicken = I915_READ(reg);
 
-		if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv))
-			chicken |= (PSR2_VSC_ENABLE_PROG_HEADER
-				   | PSR2_ADD_VERTICAL_LINE_COUNT);
-
-		else
-			chicken &= ~VSC_DATA_SEL_SOFTWARE_CONTROL;
+		chicken |= PSR2_VSC_ENABLE_PROG_HEADER |
+			   PSR2_ADD_VERTICAL_LINE_COUNT;
 		I915_WRITE(reg, chicken);
 	}
 

From 227939a1c46db1b3dab52b621d7e6621ad269f84 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:34:00 -0800
Subject: [PATCH 008/118] drm/i915: Remove old PSR2 FIXME about frontbuffer
 tracking
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Our frontbuffer tracking improved over the years + the WA #0884
helped us keep PSR2 enabled while triggering screen updates when
necessary so this FIXME is not valid anymore.

Acked-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-6-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index b513a15d60e1..11b038ba96ec 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -476,9 +476,6 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
 	idle_frames = max(idle_frames, dev_priv->psr.sink_sync_latency + 1);
 	val = idle_frames << EDP_PSR2_IDLE_FRAME_SHIFT;
 
-	/* FIXME: selective update is probably totally broken because it doesn't
-	 * mesh at all with our frontbuffer tracking. And the hw alone isn't
-	 * good enough. */
 	val |= EDP_PSR2_ENABLE | EDP_SU_TRACK_ENABLE;
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
 		val |= EDP_Y_COORDINATE_ENABLE;

From 71b15621f0972aac3512848691285663c66c8203 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:34:01 -0800
Subject: [PATCH 009/118] drm: Add the PSR SU granularity registers offsets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Source is required to comply to sink SU granularity when
DP_PSR2_SU_GRANULARITY_REQUIRED is set in DP_PSR_CAPS,
so adding the registers offsets.

v2: Also adding DP_PSR2_SU_Y_GRANULARITY(Rodrigo)

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-7-jose.souza@intel.com
---
 include/drm/drm_dp_helper.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c33e89c51d9f..18cfde45b8ed 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -314,6 +314,10 @@
 # define DP_PSR_SETUP_TIME_SHIFT            1
 # define DP_PSR2_SU_Y_COORDINATE_REQUIRED   (1 << 4)  /* eDP 1.4a */
 # define DP_PSR2_SU_GRANULARITY_REQUIRED    (1 << 5)  /* eDP 1.4b */
+
+#define DP_PSR2_SU_X_GRANULARITY	    0x072 /* eDP 1.4b */
+#define DP_PSR2_SU_Y_GRANULARITY	    0x074 /* eDP 1.4b */
+
 /*
  * 0x80-0x8f describe downstream port capabilities, but there are two layouts
  * based on whether DP_DETAILED_CAP_INFO_AVAILABLE was set.  If it was not,

From bef5e5b3bee41c6a0706f4a4f66bc9422e6933a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:34:02 -0800
Subject: [PATCH 010/118] drm/i915/psr: Check if resolution is supported by
 default SU granularity
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Selective updates have a default granularity requirements as stated
by eDP spec(PSR2 SELECTIVE UPDATE X GRANULARITY CAPABILITY register
definition), so check if HW can match those requirements before
enabling PSR2.

v3:
- Changes in the comments and commit message(Dhinakaran)
- Printing the hdisplay that do not match with default granularity

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-8-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_psr.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 11b038ba96ec..298c3145212d 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -536,6 +536,17 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 		return false;
 	}
 
+	/*
+	 * HW sends SU blocks of size four scan lines, which means the starting
+	 * X coordinate and Y granularity requirements will always be met. We
+	 * only need to validate the SU block width is a multiple of 4.
+	 */
+	if (crtc_hdisplay % 4) {
+		DRM_DEBUG_KMS("PSR2 not enabled, hdisplay(%d) not multiple of 4\n",
+			      crtc_hdisplay);
+		return false;
+	}
+
 	return true;
 }
 

From 8c0d2c29083d689685c0ecccb82217c732490b50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 3 Dec 2018 16:34:03 -0800
Subject: [PATCH 011/118] drm/i915/psr: Check if source supports sink specific
 SU granularity
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

According to eDP spec, sink can required specific selective update
granularity that source must comply.
Here caching the value if required and checking if source supports
it.

v3:
- Returning the default granularity in case DPCD read fails(Dhinakaran)
- Changed DPCD error message level(Dhinakaran)

v4:
- Setting granularity to defaul when granularity read is equal to
0(Dhinakaran)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-9-jose.souza@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h  |  1 +
 drivers/gpu/drm/i915/intel_psr.c | 37 ++++++++++++++++++++++++++++----
 2 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b1c31967194b..0689e67c966e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -509,6 +509,7 @@ struct i915_psr {
 	ktime_t last_exit;
 	bool sink_not_reliable;
 	bool irq_aux_error;
+	u16 su_x_granularity;
 };
 
 enum intel_pch {
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 298c3145212d..4c4dd1c310ce 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -261,6 +261,32 @@ static u8 intel_dp_get_sink_sync_latency(struct intel_dp *intel_dp)
 	return val;
 }
 
+static u16 intel_dp_get_su_x_granulartiy(struct intel_dp *intel_dp)
+{
+	u16 val;
+	ssize_t r;
+
+	/*
+	 * Returning the default X granularity if granularity not required or
+	 * if DPCD read fails
+	 */
+	if (!(intel_dp->psr_dpcd[1] & DP_PSR2_SU_GRANULARITY_REQUIRED))
+		return 4;
+
+	r = drm_dp_dpcd_read(&intel_dp->aux, DP_PSR2_SU_X_GRANULARITY, &val, 2);
+	if (r != 2)
+		DRM_DEBUG_KMS("Unable to read DP_PSR2_SU_X_GRANULARITY\n");
+
+	/*
+	 * Spec says that if the value read is 0 the default granularity should
+	 * be used instead.
+	 */
+	if (r != 2 || val == 0)
+		val = 4;
+
+	return val;
+}
+
 void intel_psr_init_dpcd(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *dev_priv =
@@ -315,6 +341,8 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
 		if (dev_priv->psr.sink_psr2_support) {
 			dev_priv->psr.colorimetry_support =
 				intel_dp_get_colorimetry_status(intel_dp);
+			dev_priv->psr.su_x_granularity =
+				intel_dp_get_su_x_granulartiy(intel_dp);
 		}
 	}
 }
@@ -539,11 +567,12 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 	/*
 	 * HW sends SU blocks of size four scan lines, which means the starting
 	 * X coordinate and Y granularity requirements will always be met. We
-	 * only need to validate the SU block width is a multiple of 4.
+	 * only need to validate the SU block width is a multiple of
+	 * x granularity.
 	 */
-	if (crtc_hdisplay % 4) {
-		DRM_DEBUG_KMS("PSR2 not enabled, hdisplay(%d) not multiple of 4\n",
-			      crtc_hdisplay);
+	if (crtc_hdisplay % dev_priv->psr.su_x_granularity) {
+		DRM_DEBUG_KMS("PSR2 not enabled, hdisplay(%d) not multiple of %d\n",
+			      crtc_hdisplay, dev_priv->psr.su_x_granularity);
 		return false;
 	}
 

From 79960227d93b81496365c35f5df162216f94d8e4 Mon Sep 17 00:00:00 2001
From: Pedro Tammela <pctammela@gmail.com>
Date: Wed, 5 Dec 2018 09:06:08 -0200
Subject: [PATCH 012/118] Makefile: fix mixed tab and spaces

Fixes a comestic issue where spaces were being used
instead of mixed tab and spaces.

Signed-off-by: Pedro Tammela <pctammela@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205110608.5513-1-pctammela@gmail.com
---
 drivers/gpu/drm/i915/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 19b5fe5016bf..c34bee16730d 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -40,7 +40,7 @@ i915-y := i915_drv.o \
 	  i915_mm.o \
 	  i915_params.o \
 	  i915_pci.o \
-          i915_suspend.o \
+	  i915_suspend.o \
 	  i915_syncmap.o \
 	  i915_sw_fence.o \
 	  i915_sysfs.o \

From a1d926527b79576615839db39e3a5c7a7845f31c Mon Sep 17 00:00:00 2001
From: Matt Atwood <matthew.s.atwood@intel.com>
Date: Thu, 29 Nov 2018 14:00:58 -0800
Subject: [PATCH 013/118] drm/i915: implement
 EXTENDED_RECEIVER_CAPABILITY_FIELD_PRESENT

According to DP spec (2.9.3.1 of DP 1.4) if
EXTENDED_RECEIVER_CAPABILITY_FIELD_PRESENT is set the addresses in DPCD
02200h through 0220Fh shall contain the DPRX's true capability. These
values will match 00000h through 0000Fh, except for DPCD_REV,
MAX_LINK_RATE, DOWN_STREAM_PORT_PRESENT.

Read from DPCD once for all 3 values as this is an expensive operation.
Spec mentions that all of address space 02200h through 0220Fh should
contain the right information however currently only 3 values can
differ.

There is no address space in the intel_dp->dpcd struct for addresses
02200h through 0220Fh, and since so much of the data is a identical,
simply overwrite the values stored in 00000h through 0000Fh with the
values that can be overwritten from addresses 02200h through 0220Fh.

This patch helps with backward compatibility for devices pre DP1.3.

v2: read only dpcd values which can be affected, remove incorrect check,
split into drm include changes into separate patch, commit message,
verbose debugging statements during overwrite.
v3: white space fixes
v4: make path dependent on DPCD revision > 1.2
v5: split into function, removed DPCD rev check
v6: add debugging prints for early exit conditions
v7 (From Manasi):
* Memcpy, memcmp and debig logging based on sizeof(dpcd_ext) (Jani N)
* Exit early (Jani N)
v8 (From Manasi):
* Get rid of superfluous debug prints (Jani N)
* Print entire base DPCD before memcpy (Jani N)
v9 (From Manasi):
* Add uniform newlines (Rodrigo)

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Tested-by: Manasi Navare <manasi.d.navare@intel.com>
Acked-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181129220058.19636-1-manasi.d.navare@intel.com
---
 drivers/gpu/drm/i915/intel_dp.c | 38 +++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index fdd2cbc56fa3..de4219721cbc 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3991,6 +3991,42 @@ intel_dp_link_down(struct intel_encoder *encoder,
 	}
 }
 
+static void
+intel_dp_extended_receiver_capabilities(struct intel_dp *intel_dp)
+{
+	u8 dpcd_ext[6];
+
+	/*
+	 * Prior to DP1.3 the bit represented by
+	 * DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT was reserved.
+	 * if it is set DP_DPCD_REV at 0000h could be at a value less than
+	 * the true capability of the panel. The only way to check is to
+	 * then compare 0000h and 2200h.
+	 */
+	if (!(intel_dp->dpcd[DP_TRAINING_AUX_RD_INTERVAL] &
+	      DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT))
+		return;
+
+	if (drm_dp_dpcd_read(&intel_dp->aux, DP_DP13_DPCD_REV,
+			     &dpcd_ext, sizeof(dpcd_ext)) != sizeof(dpcd_ext)) {
+		DRM_ERROR("DPCD failed read at extended capabilities\n");
+		return;
+	}
+
+	if (intel_dp->dpcd[DP_DPCD_REV] > dpcd_ext[DP_DPCD_REV]) {
+		DRM_DEBUG_KMS("DPCD extended DPCD rev less than base DPCD rev\n");
+		return;
+	}
+
+	if (!memcmp(intel_dp->dpcd, dpcd_ext, sizeof(dpcd_ext)))
+		return;
+
+	DRM_DEBUG_KMS("Base DPCD: %*ph\n",
+		      (int)sizeof(intel_dp->dpcd), intel_dp->dpcd);
+
+	memcpy(intel_dp->dpcd, dpcd_ext, sizeof(dpcd_ext));
+}
+
 bool
 intel_dp_read_dpcd(struct intel_dp *intel_dp)
 {
@@ -3998,6 +4034,8 @@ intel_dp_read_dpcd(struct intel_dp *intel_dp)
 			     sizeof(intel_dp->dpcd)) < 0)
 		return false; /* aux transfer failed */
 
+	intel_dp_extended_receiver_capabilities(intel_dp);
+
 	DRM_DEBUG_KMS("DPCD: %*ph\n", (int) sizeof(intel_dp->dpcd), intel_dp->dpcd);
 
 	return intel_dp->dpcd[DP_DPCD_REV] != 0;

From ed17b555303c74a35f226268523b1695dbd4617d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Wed, 5 Dec 2018 10:48:50 -0800
Subject: [PATCH 014/118] drm: Fix documentation generation for
 DP_DPCD_QUIRK_NO_PSR
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The DP_DPCD_QUIRK_NO_PSR comment is missing colon causing this
warning when generating kernel documentation.

./include/drm/drm_dp_helper.h:1374: warning: Incorrect use of kernel-doc format:          * @DP_DPCD_QUIRK_NO_PSR

Fixes: 7c5c641a930e (drm/i915: Disable PSR in Apple panels)
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205184850.13218-1-jose.souza@intel.com
---
 include/drm/drm_dp_helper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 18cfde45b8ed..c223c87ef119 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1370,7 +1370,7 @@ enum drm_dp_quirk {
 	 */
 	DP_DPCD_QUIRK_CONSTANT_N,
 	/**
-	 * @DP_DPCD_QUIRK_NO_PSR
+	 * @DP_DPCD_QUIRK_NO_PSR:
 	 *
 	 * The device does not support PSR even if reports that it supports or
 	 * driver still need to implement proper handling for such device.

From 8d9d005d38bada06604545f815fcbb69c1d08e63 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Tue, 4 Dec 2018 16:48:23 -0800
Subject: [PATCH 015/118] drm/i915/fbc/cnl: Add GLK and CNL+ hardware tracking
 area
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GLK and CNL+ supports a bigger FBC tracking area.

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205004823.30823-1-jose.souza@intel.com
---
 drivers/gpu/drm/i915/intel_fbc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index f23570c44323..78dbacdeaece 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -626,7 +626,10 @@ static bool intel_fbc_hw_tracking_covers_screen(struct intel_crtc *crtc)
 	struct intel_fbc *fbc = &dev_priv->fbc;
 	unsigned int effective_w, effective_h, max_w, max_h;
 
-	if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv)) {
+	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
+		max_w = 5120;
+		max_h = 4096;
+	} else if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv)) {
 		max_w = 4096;
 		max_h = 4096;
 	} else if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {

From 083d2a07ee0ef09c6116f058d1c6e41bafca6a19 Mon Sep 17 00:00:00 2001
From: Ramalingam C <ramalingam.c@intel.com>
Date: Wed, 5 Dec 2018 17:14:40 +0530
Subject: [PATCH 016/118] drm/i915: Fix GEN9 HDCP1.4 key load process

HDCP1.4 key load process varies between Intel platform to platform.

For Gen9 platforms except BXT and GLK, HDCP1.4 key is loaded using
the GT Driver Mailbox interface. So all GEN9_BC platforms will use
the GT Driver Mailbox interface for HDCP1.4 key load.

v2:
  Using the IS_GEN9_BC for filtering the platforms [Ville]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1544010283-20223-2-git-send-email-ramalingam.c@intel.com
---
 drivers/gpu/drm/i915/intel_hdcp.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index 1bf487f94254..c16bffcce3b0 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -157,10 +157,11 @@ static int intel_hdcp_load_keys(struct drm_i915_private *dev_priv)
 	/*
 	 * Initiate loading the HDCP key from fuses.
 	 *
-	 * BXT+ platforms, HDCP key needs to be loaded by SW. Only SKL and KBL
-	 * differ in the key load trigger process from other platforms.
+	 * BXT+ platforms, HDCP key needs to be loaded by SW. Only Gen 9
+	 * platforms except BXT and GLK, differ in the key load trigger process
+	 * from other platforms. So GEN9_BC uses the GT Driver Mailbox i/f.
 	 */
-	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+	if (IS_GEN9_BC(dev_priv)) {
 		mutex_lock(&dev_priv->pcu_lock);
 		ret = sandybridge_pcode_write(dev_priv,
 					      SKL_PCODE_LOAD_HDCP_KEYS, 1);

From a0ea697a66497d68acbffb84d7bdaf2c92a89fe1 Mon Sep 17 00:00:00 2001
From: Ramalingam C <ramalingam.c@intel.com>
Date: Wed, 5 Dec 2018 17:14:41 +0530
Subject: [PATCH 017/118] drm/i915: Fix platform coverage for HDCP1.4

HDCP1.4 is enabled and validated only on GEN9+ platforms.

v2:
  Removed the unnecessary parens [Ville]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1544010283-20223-3-git-send-email-ramalingam.c@intel.com
---
 drivers/gpu/drm/i915/intel_hdcp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index c16bffcce3b0..1e5a1e07e343 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -769,8 +769,7 @@ static void intel_hdcp_prop_work(struct work_struct *work)
 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port)
 {
 	/* PORT E doesn't have HDCP, and PORT F is disabled */
-	return ((INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv)) &&
-		!IS_CHERRYVIEW(dev_priv) && port < PORT_E);
+	return INTEL_GEN(dev_priv) >= 9 && port < PORT_E;
 }
 
 int intel_hdcp_init(struct intel_connector *connector,

From 4cf74aafc55bef8725d1d30f7d3449fb86c1710f Mon Sep 17 00:00:00 2001
From: Ramalingam C <ramalingam.c@intel.com>
Date: Wed, 5 Dec 2018 17:14:42 +0530
Subject: [PATCH 018/118] drm/i915: debug log for REPLY_ACK missing

Adding a debug log when the DP_AUX_NATIVE_REPLY_ACK is missing
for aksv write. This helps to locate the possible non responding
DP HDCP sinks.

v2:
  Rewritten for readability [Sean Paul]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1544010283-20223-4-git-send-email-ramalingam.c@intel.com
---
 drivers/gpu/drm/i915/intel_dp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index de4219721cbc..e94faa0a42eb 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5616,7 +5616,12 @@ int intel_dp_hdcp_write_an_aksv(struct intel_digital_port *intel_dig_port,
 	}
 
 	reply = (rxbuf[0] >> 4) & DP_AUX_NATIVE_REPLY_MASK;
-	return reply == DP_AUX_NATIVE_REPLY_ACK ? 0 : -EIO;
+	if (reply != DP_AUX_NATIVE_REPLY_ACK) {
+		DRM_DEBUG_KMS("Aksv write: no DP_AUX_NATIVE_REPLY_ACK %x\n",
+			      reply);
+		return -EIO;
+	}
+	return 0;
 }
 
 static int intel_dp_hdcp_read_bksv(struct intel_digital_port *intel_dig_port,

From 7e90e8d0c0ea211241ba42390bc7602debdff90e Mon Sep 17 00:00:00 2001
From: Ramalingam C <ramalingam.c@intel.com>
Date: Wed, 5 Dec 2018 17:14:43 +0530
Subject: [PATCH 019/118] drm/i915: Increase timeout for Encrypt status change

At enable/disable of the HDCP encryption, for encryption status change
we need minimum one frame duration. And we might program this bit any
point(start/End) in the previous frame.

With 20mSec, observed the timeout for change in encryption status.
Since this is not time critical operation and we need to hold on
until the status is changed, fixing the timeout to 50mSec. (Based on
trial and error method!)

v2:
  %s/TIME_FOR_ENCRYPT_STATUS_CHANGE/ENCRYPT_STATUS_CHANGE_TIMEOUT_MS
	[Sean Paul]

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1544010283-20223-5-git-send-email-ramalingam.c@intel.com
---
 drivers/gpu/drm/i915/intel_hdcp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index 1e5a1e07e343..e000e54ad569 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -15,6 +15,7 @@
 #include "i915_reg.h"
 
 #define KEY_LOAD_TRIES	5
+#define ENCRYPT_STATUS_CHANGE_TIMEOUT_MS	50
 
 static
 bool intel_hdcp_is_ksv_valid(u8 *ksv)
@@ -637,7 +638,8 @@ static int intel_hdcp_auth(struct intel_digital_port *intel_dig_port,
 
 	/* Wait for encryption confirmation */
 	if (intel_wait_for_register(dev_priv, PORT_HDCP_STATUS(port),
-				    HDCP_STATUS_ENC, HDCP_STATUS_ENC, 20)) {
+				    HDCP_STATUS_ENC, HDCP_STATUS_ENC,
+				    ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
 		DRM_ERROR("Timed out waiting for encryption\n");
 		return -ETIMEDOUT;
 	}
@@ -667,7 +669,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
 
 	I915_WRITE(PORT_HDCP_CONF(port), 0);
 	if (intel_wait_for_register(dev_priv, PORT_HDCP_STATUS(port), ~0, 0,
-				    20)) {
+				    ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
 		DRM_ERROR("Failed to disable HDCP, timeout clearing status\n");
 		return -ETIMEDOUT;
 	}

From 3abd6143f97114360118b43f6465abb207be905a Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 6 Dec 2018 18:07:12 +0000
Subject: [PATCH 020/118] drm/i915/selftests: verify_gt_engine_wa() needs rpm
 wakeref

The mmio readback for verify_gt_engine_wa() also needs a runtime-pm
wakeref, so effectively do the entirety of both engine workarounds
tests. As such simplify the rpm behaviour here by acquiring the wakeref
for the whole of each subtest. It would be still useful to later verify
the registers retain their magic values across rpm suspend/resume.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181206180713.6827-1-chris@chris-wilson.co.uk
---
 .../gpu/drm/i915/selftests/intel_workarounds.c    | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
index 67017d5175b8..c2b3cd8fcc34 100644
--- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
@@ -333,7 +333,6 @@ static bool verify_gt_engine_wa(struct drm_i915_private *i915, const char *str)
 	bool ok = true;
 
 	ok &= intel_gt_verify_workarounds(i915, str);
-
 	for_each_engine(engine, i915, id)
 		ok &= intel_engine_verify_workarounds(engine, str);
 
@@ -353,19 +352,19 @@ live_gpu_reset_gt_engine_workarounds(void *arg)
 	pr_info("Verifying after GPU reset...\n");
 
 	igt_global_reset_lock(i915);
+	intel_runtime_pm_get(i915);
 
 	ok = verify_gt_engine_wa(i915, "before reset");
 	if (!ok)
 		goto out;
 
-	intel_runtime_pm_get(i915);
 	set_bit(I915_RESET_HANDOFF, &error->flags);
 	i915_reset(i915, ALL_ENGINES, "live_workarounds");
-	intel_runtime_pm_put(i915);
 
 	ok = verify_gt_engine_wa(i915, "after reset");
 
 out:
+	intel_runtime_pm_put(i915);
 	igt_global_reset_unlock(i915);
 
 	return ok ? 0 : -ESRCH;
@@ -390,6 +389,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 		return PTR_ERR(ctx);
 
 	igt_global_reset_lock(i915);
+	intel_runtime_pm_get(i915);
 
 	for_each_engine(engine, i915, id) {
 		bool ok;
@@ -402,9 +402,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 			goto err;
 		}
 
-		intel_runtime_pm_get(i915);
 		i915_reset_engine(engine, "live_workarounds");
-		intel_runtime_pm_put(i915);
 
 		ok = verify_gt_engine_wa(i915, "after idle reset");
 		if (!ok) {
@@ -416,13 +414,10 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 		if (ret)
 			goto err;
 
-		intel_runtime_pm_get(i915);
-
 		rq = igt_spinner_create_request(&spin, ctx, engine, MI_NOOP);
 		if (IS_ERR(rq)) {
 			ret = PTR_ERR(rq);
 			igt_spinner_fini(&spin);
-			intel_runtime_pm_put(i915);
 			goto err;
 		}
 
@@ -431,15 +426,12 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 		if (!igt_wait_for_spinner(&spin, rq)) {
 			pr_err("Spinner failed to start\n");
 			igt_spinner_fini(&spin);
-			intel_runtime_pm_put(i915);
 			ret = -ETIMEDOUT;
 			goto err;
 		}
 
 		i915_reset_engine(engine, "live_workarounds");
 
-		intel_runtime_pm_put(i915);
-
 		igt_spinner_end(&spin);
 		igt_spinner_fini(&spin);
 
@@ -451,6 +443,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 	}
 
 err:
+	intel_runtime_pm_put(i915);
 	igt_global_reset_unlock(i915);
 	kernel_context_close(ctx);
 

From 5a688ee3a224a9042627441fe6e82bae130be098 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 6 Dec 2018 18:07:13 +0000
Subject: [PATCH 021/118] drm/i915/execlists: Move RCS mmio workaround to new
 common wa_list

We can move the remaining RCS workarounds applied to only gen8 to the
engine->wa_list, and then reduce all engine->init_hw callbacks to common
code. The benefit of using the new wa_list is that we verify that the
registers are indeed restored and keep their magic values.

v2: INSTPM_FORCE_ORDERING is already part of gen8_ctx_workarounds, and
as confirmed by the mmio verification is a part of the context image!
v3: MI_MODE is already part of gen8_ctx_workarounds...

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181206180713.6827-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_lrc.c | 42 +-------------------------------
 1 file changed, 1 insertion(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index d7fa301b5ec7..dc8981be22cf 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1628,6 +1628,7 @@ static bool unexpected_starting_state(struct intel_engine_cs *engine)
 static int gen8_init_common_ring(struct intel_engine_cs *engine)
 {
 	intel_engine_apply_workarounds(engine);
+	intel_engine_apply_whitelist(engine);
 
 	intel_mocs_init_engine(engine);
 
@@ -1644,43 +1645,6 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
 	return 0;
 }
 
-static int gen8_init_render_ring(struct intel_engine_cs *engine)
-{
-	struct drm_i915_private *dev_priv = engine->i915;
-	int ret;
-
-	ret = gen8_init_common_ring(engine);
-	if (ret)
-		return ret;
-
-	intel_engine_apply_whitelist(engine);
-
-	/* We need to disable the AsyncFlip performance optimisations in order
-	 * to use MI_WAIT_FOR_EVENT within the CS. It should already be
-	 * programmed to '1' on all products.
-	 *
-	 * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv,bdw,chv
-	 */
-	I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE));
-
-	I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING));
-
-	return 0;
-}
-
-static int gen9_init_render_ring(struct intel_engine_cs *engine)
-{
-	int ret;
-
-	ret = gen8_init_common_ring(engine);
-	if (ret)
-		return ret;
-
-	intel_engine_apply_whitelist(engine);
-
-	return 0;
-}
-
 static struct i915_request *
 execlists_reset_prepare(struct intel_engine_cs *engine)
 {
@@ -2280,10 +2244,6 @@ int logical_render_ring_init(struct intel_engine_cs *engine)
 		engine->irq_keep_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
 
 	/* Override some for render ring. */
-	if (INTEL_GEN(dev_priv) >= 9)
-		engine->init_hw = gen9_init_render_ring;
-	else
-		engine->init_hw = gen8_init_render_ring;
 	engine->init_context = gen8_init_rcs_context;
 	engine->emit_flush = gen8_emit_flush_render;
 	engine->emit_breadcrumb = gen8_emit_breadcrumb_rcs;

From 490b8c65b9db45896769e1095e78725775f47b3e Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 6 Dec 2018 08:44:31 +0000
Subject: [PATCH 022/118] drm/i915/execlists: Apply a full mb before execution
 for Braswell

Braswell is really picky about having our writes posted to memory before
we execute or else the GPU may see stale values. A wmb() is insufficient
as it only ensures the writes are visible to other cores, we need a full
mb() to ensure the writes are in memory and visible to the GPU.

The most frequent failure in flushing before execution is that we see
stale PTE values and execute the wrong pages.

References: 987abd5c62f9 ("drm/i915/execlists: Force write serialisation into context image vs execution")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181206084431.9805-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_lrc.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index dc8981be22cf..27d3a780611a 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -398,8 +398,13 @@ static u64 execlists_update_context(struct i915_request *rq)
 	 * may not be visible to the HW prior to the completion of the UC
 	 * register write and that we may begin execution from the context
 	 * before its image is complete leading to invalid PD chasing.
+	 *
+	 * Furthermore, Braswell, at least, wants a full mb to be sure that
+	 * the writes are coherent in memory (visible to the GPU) prior to
+	 * execution, and not just visible to other CPUs (as is the result of
+	 * wmb).
 	 */
-	wmb();
+	mb();
 	return ce->lrc_desc;
 }
 

From d8f505311717cfc2033c44a8b26ba96c66187303 Mon Sep 17 00:00:00 2001
From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Wed, 5 Dec 2018 15:46:12 +0200
Subject: [PATCH 023/118] drm/i915/icl: Forcibly evict stale csb entries

Gen11 fails to deliver wrt global observation point on
tail/entry updates and we sometimes see old entry.

Use clflush to forcibly evict our possibly stale copy
of the cacheline in hopes that we get fresh one from gpu.
Obviously there is something amiss in the coherency protocol so
this can be consired as a workaround until real cause
is found.

The working hardware will do the evict without our cue anyways,
so the cost in there should be ameliorated by that fact.

v2: for next pass, s/flush/evict, add reset (Chris)

References: https://bugzilla.freedesktop.org/show_bug.cgi?id=108315
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205134612.24822-1-mika.kuoppala@linux.intel.com
---
 drivers/gpu/drm/i915/intel_lrc.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 27d3a780611a..3a47a4732fae 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -770,6 +770,13 @@ execlists_cancel_port_requests(struct intel_engine_execlists * const execlists)
 	execlists_clear_all_active(execlists);
 }
 
+static inline void
+invalidate_csb_entries(const u32 *first, const u32 *last)
+{
+	clflush((void *)first);
+	clflush((void *)last);
+}
+
 static void reset_csb_pointers(struct intel_engine_execlists *execlists)
 {
 	const unsigned int reset_value = GEN8_CSB_ENTRIES - 1;
@@ -785,6 +792,9 @@ static void reset_csb_pointers(struct intel_engine_execlists *execlists)
 	 */
 	execlists->csb_head = reset_value;
 	WRITE_ONCE(*execlists->csb_write, reset_value);
+
+	invalidate_csb_entries(&execlists->csb_status[0],
+			       &execlists->csb_status[GEN8_CSB_ENTRIES - 1]);
 }
 
 static void nop_submission_tasklet(unsigned long data)
@@ -1020,6 +1030,19 @@ static void process_csb(struct intel_engine_cs *engine)
 	} while (head != tail);
 
 	execlists->csb_head = head;
+
+	/*
+	 * Gen11 has proven to fail wrt global observation point between
+	 * entry and tail update, failing on the ordering and thus
+	 * we see an old entry in the context status buffer.
+	 *
+	 * Forcibly evict out entries for the next gpu csb update,
+	 * to increase the odds that we get a fresh entries with non
+	 * working hardware. The cost for doing so comes out mostly with
+	 * the wash as hardware, working or not, will need to do the
+	 * invalidation before.
+	 */
+	invalidate_csb_entries(&buf[0], &buf[GEN8_CSB_ENTRIES - 1]);
 }
 
 static void __execlists_submission_tasklet(struct intel_engine_cs *const engine)

From 5f5800a765de8414f6fb213c4ad4a1cf529e131d Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 7 Dec 2018 09:02:11 +0000
Subject: [PATCH 024/118] drm/i915: Push EMIT_INVALIDATE at request start to
 backends

Move the common engine->emit_flush(EMIT_INVALIDATE) back to the backends
(where it was once previously) as we seek to specialise it in future
patches.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207090213.14352-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_request.c     | 5 -----
 drivers/gpu/drm/i915/intel_lrc.c        | 9 ++++++---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 6 ++++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index ca95ab2f4cfa..8ab8e8e6a086 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -719,11 +719,6 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 	 */
 	rq->head = rq->ring->emit;
 
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = engine->emit_flush(rq, EMIT_INVALIDATE);
-	if (ret)
-		goto err_unwind;
-
 	ret = engine->request_alloc(rq);
 	if (ret)
 		goto err_unwind;
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 3a47a4732fae..a9084a54c0f4 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1276,17 +1276,20 @@ static int execlists_request_alloc(struct i915_request *request)
 
 	GEM_BUG_ON(!request->hw_context->pin_count);
 
-	/* Flush enough space to reduce the likelihood of waiting after
+	/*
+	 * Flush enough space to reduce the likelihood of waiting after
 	 * we start building the request - in which case we will just
 	 * have to repeat work.
 	 */
 	request->reserved_space += EXECLISTS_REQUEST_SIZE;
 
-	ret = intel_ring_wait_for_space(request->ring, request->reserved_space);
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 
-	/* Note that after this point, we have committed to using
+	/*
+	 * Note that after this point, we have committed to using
 	 * this request as it is being used to both track the
 	 * state of engine initialisation and liveness of the
 	 * golden renderstate above. Think twice before you try
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index c5eb26a7ee79..16084749adf5 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1820,13 +1820,15 @@ static int ring_request_alloc(struct i915_request *request)
 
 	GEM_BUG_ON(!request->hw_context->pin_count);
 
-	/* Flush enough space to reduce the likelihood of waiting after
+	/*
+	 * Flush enough space to reduce the likelihood of waiting after
 	 * we start building the request - in which case we will just
 	 * have to repeat work.
 	 */
 	request->reserved_space += LEGACY_REQUEST_SIZE;
 
-	ret = intel_ring_wait_for_space(request->ring, request->reserved_space);
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 

From f2253bd9859bab65fdbc94bf5ce1876c403a11eb Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 7 Dec 2018 09:02:12 +0000
Subject: [PATCH 025/118] drm/i915/ringbuffer: EMIT_INVALIDATE after switch
 context

The recommend procedure was to switch contexts (and mm) then invalidate
the TLBs. Make it so.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207090213.14352-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 16084749adf5..74a4d587c312 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1827,12 +1827,12 @@ static int ring_request_alloc(struct i915_request *request)
 	 */
 	request->reserved_space += LEGACY_REQUEST_SIZE;
 
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
+	ret = switch_context(request);
 	if (ret)
 		return ret;
 
-	ret = switch_context(request);
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 

From e8894267cc3325901073e8adf0a63e2dc53b6242 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 7 Dec 2018 09:02:13 +0000
Subject: [PATCH 026/118] drm/i915: Pipeline PDP updates for Braswell

Currently we face a severe problem on Braswell that manifests as invalid
ppGTT accesses. The code tries to maintain the PDP (page directory
pointers) inside the context in two ways, direct write into the context
and a pipelined LRI update. The direct write into the context is
fundamentally racy as it is unserialised with any access (read or write)
the GPU is doing. By asserting that Braswell is not used with vGPU
(currently an unsupported platform) we can eliminate the dangerous
direct write into the context image and solely use the pipelined update.

However, the LRI of the PDP fouls up the GPU, causing it to freeze and
take out the machine with "forcewake ack timeouts". This seems possible
to workaround by preventing the GPU from sleeping (via means of
disabling the power-state management interface, i.e. forcing each ring
to remain awake) around the update. Equally, it seems an EMIT_INVALIDATE
before the LRI is sufficient to prevent the forcewake errors.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108656
References: https://bugs.freedesktop.org/show_bug.cgi?id=108714
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207090213.14352-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_gtt.c |   2 -
 drivers/gpu/drm/i915/intel_lrc.c    | 140 ++++++++++++++--------------
 2 files changed, 69 insertions(+), 73 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index add1fe7aeb93..62bde517d383 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1423,8 +1423,6 @@ static int gen8_ppgtt_alloc_pdp(struct i915_address_space *vm,
 			gen8_initialize_pd(vm, pd);
 			gen8_ppgtt_set_pdpe(vm, pdp, pd, pdpe);
 			GEM_BUG_ON(pdp->used_pdpes > i915_pdpes_per_pdp(vm));
-
-			mark_tlbs_dirty(i915_vm_to_ppgtt(vm));
 		}
 
 		ret = gen8_ppgtt_alloc_pd(vm, pd, start, length);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index a9084a54c0f4..ae7e5b288ed5 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -363,31 +363,12 @@ execlists_context_schedule_out(struct i915_request *rq, unsigned long status)
 	trace_i915_request_out(rq);
 }
 
-static void
-execlists_update_context_pdps(struct i915_hw_ppgtt *ppgtt, u32 *reg_state)
-{
-	ASSIGN_CTX_PDP(ppgtt, reg_state, 3);
-	ASSIGN_CTX_PDP(ppgtt, reg_state, 2);
-	ASSIGN_CTX_PDP(ppgtt, reg_state, 1);
-	ASSIGN_CTX_PDP(ppgtt, reg_state, 0);
-}
-
 static u64 execlists_update_context(struct i915_request *rq)
 {
-	struct i915_hw_ppgtt *ppgtt = rq->gem_context->ppgtt;
 	struct intel_context *ce = rq->hw_context;
-	u32 *reg_state = ce->lrc_reg_state;
 
-	reg_state[CTX_RING_TAIL+1] = intel_ring_set_tail(rq->ring, rq->tail);
-
-	/*
-	 * True 32b PPGTT with dynamic page allocation: update PDP
-	 * registers and point the unallocated PDPs to scratch page.
-	 * PML4 is allocated during ppgtt init, so this is not needed
-	 * in 48-bit mode.
-	 */
-	if (!i915_vm_is_48bit(&ppgtt->vm))
-		execlists_update_context_pdps(ppgtt, reg_state);
+	ce->lrc_reg_state[CTX_RING_TAIL + 1] =
+		intel_ring_set_tail(rq->ring, rq->tail);
 
 	/*
 	 * Make sure the context image is complete before we submit it to HW.
@@ -1270,6 +1251,59 @@ execlists_context_pin(struct intel_engine_cs *engine,
 	return __execlists_context_pin(engine, ctx, ce);
 }
 
+static int emit_pdps(struct i915_request *rq)
+{
+	const struct intel_engine_cs * const engine = rq->engine;
+	struct i915_hw_ppgtt * const ppgtt = rq->gem_context->ppgtt;
+	int err, i;
+	u32 *cs;
+
+	GEM_BUG_ON(intel_vgpu_active(rq->i915));
+
+	/*
+	 * Beware ye of the dragons, this sequence is magic!
+	 *
+	 * Small changes to this sequence can cause anything from
+	 * GPU hangs to forcewake errors and machine lockups!
+	 */
+
+	/* Flush any residual operations from the context load */
+	err = engine->emit_flush(rq, EMIT_FLUSH);
+	if (err)
+		return err;
+
+	/* Magic required to prevent forcewake errors! */
+	err = engine->emit_flush(rq, EMIT_INVALIDATE);
+	if (err)
+		return err;
+
+	cs = intel_ring_begin(rq, 4 * GEN8_3LVL_PDPES + 2);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	/* Ensure the LRI have landed before we invalidate & continue */
+	*cs++ = MI_LOAD_REGISTER_IMM(2 * GEN8_3LVL_PDPES) | MI_LRI_FORCE_POSTED;
+	for (i = GEN8_3LVL_PDPES; i--; ) {
+		const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
+
+		*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, i));
+		*cs++ = upper_32_bits(pd_daddr);
+		*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i));
+		*cs++ = lower_32_bits(pd_daddr);
+	}
+	*cs++ = MI_NOOP;
+
+	intel_ring_advance(rq, cs);
+
+	/* Be doubly sure the LRI have landed before proceeding */
+	err = engine->emit_flush(rq, EMIT_FLUSH);
+	if (err)
+		return err;
+
+	/* Re-invalidate the TLB for luck */
+	return engine->emit_flush(rq, EMIT_INVALIDATE);
+}
+
 static int execlists_request_alloc(struct i915_request *request)
 {
 	int ret;
@@ -1283,11 +1317,6 @@ static int execlists_request_alloc(struct i915_request *request)
 	 */
 	request->reserved_space += EXECLISTS_REQUEST_SIZE;
 
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
-	if (ret)
-		return ret;
-
 	/*
 	 * Note that after this point, we have committed to using
 	 * this request as it is being used to both track the
@@ -1296,6 +1325,14 @@ static int execlists_request_alloc(struct i915_request *request)
 	 * to cancel/unwind this request now.
 	 */
 
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	if (i915_vm_is_48bit(&request->gem_context->ppgtt->vm))
+		ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
+	else
+		ret = emit_pdps(request);
+	if (ret)
+		return ret;
+
 	request->reserved_space -= EXECLISTS_REQUEST_SIZE;
 	return 0;
 }
@@ -1831,56 +1868,11 @@ static void execlists_reset_finish(struct intel_engine_cs *engine)
 		  atomic_read(&execlists->tasklet.count));
 }
 
-static int intel_logical_ring_emit_pdps(struct i915_request *rq)
-{
-	struct i915_hw_ppgtt *ppgtt = rq->gem_context->ppgtt;
-	struct intel_engine_cs *engine = rq->engine;
-	const int num_lri_cmds = GEN8_3LVL_PDPES * 2;
-	u32 *cs;
-	int i;
-
-	cs = intel_ring_begin(rq, num_lri_cmds * 2 + 2);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	*cs++ = MI_LOAD_REGISTER_IMM(num_lri_cmds);
-	for (i = GEN8_3LVL_PDPES - 1; i >= 0; i--) {
-		const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i);
-
-		*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, i));
-		*cs++ = upper_32_bits(pd_daddr);
-		*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i));
-		*cs++ = lower_32_bits(pd_daddr);
-	}
-
-	*cs++ = MI_NOOP;
-	intel_ring_advance(rq, cs);
-
-	return 0;
-}
-
 static int gen8_emit_bb_start(struct i915_request *rq,
 			      u64 offset, u32 len,
 			      const unsigned int flags)
 {
 	u32 *cs;
-	int ret;
-
-	/* Don't rely in hw updating PDPs, specially in lite-restore.
-	 * Ideally, we should set Force PD Restore in ctx descriptor,
-	 * but we can't. Force Restore would be a second option, but
-	 * it is unsafe in case of lite-restore (because the ctx is
-	 * not idle). PML4 is allocated during ppgtt init so this is
-	 * not needed in 48-bit.*/
-	if ((intel_engine_flag(rq->engine) & rq->gem_context->ppgtt->pd_dirty_rings) &&
-	    !i915_vm_is_48bit(&rq->gem_context->ppgtt->vm) &&
-	    !intel_vgpu_active(rq->i915)) {
-		ret = intel_logical_ring_emit_pdps(rq);
-		if (ret)
-			return ret;
-
-		rq->gem_context->ppgtt->pd_dirty_rings &= ~intel_engine_flag(rq->engine);
-	}
 
 	cs = intel_ring_begin(rq, 6);
 	if (IS_ERR(cs))
@@ -1913,6 +1905,7 @@ static int gen8_emit_bb_start(struct i915_request *rq,
 
 	*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
 	*cs++ = MI_NOOP;
+
 	intel_ring_advance(rq, cs);
 
 	return 0;
@@ -2524,6 +2517,11 @@ static void execlists_init_reg_state(u32 *regs,
 		 * other PDP Descriptors are ignored.
 		 */
 		ASSIGN_CTX_PML4(ctx->ppgtt, regs);
+	} else {
+		ASSIGN_CTX_PDP(ctx->ppgtt, regs, 3);
+		ASSIGN_CTX_PDP(ctx->ppgtt, regs, 2);
+		ASSIGN_CTX_PDP(ctx->ppgtt, regs, 1);
+		ASSIGN_CTX_PDP(ctx->ppgtt, regs, 0);
 	}
 
 	if (rcs) {

From e6154e4cb8b0d3692f84ca0d66b4e1ba0389b134 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 7 Dec 2018 11:05:54 +0000
Subject: [PATCH 027/118] drm/i915: Skip the ERR_PTR error state

Although commit fb6f0b64e455 ("drm/i915: Prevent machine hang from
Broxton's vtd w/a and error capture") applied cleanly after a 24 month
hiatus, the code had moved on with new methods for peeking and fetching
the captured gpu info. Make sure we catch all uses of the stashed error
state and avoid dereferencing the error pointer.

v2: Move error pointer determination into i915_gpu_capture_state
v3: Restore early check to avoid capturing and then throwing away
subsequent GPU error states.

Fixes: fb6f0b64e455 ("drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207110554.19897-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_debugfs.c   | 12 +++++++++---
 drivers/gpu/drm/i915/i915_gpu_error.c | 23 ++++++++++++++---------
 drivers/gpu/drm/i915/i915_sysfs.c     |  4 +++-
 3 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 38dcee1ca062..40a61ef9aac1 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -984,8 +984,8 @@ static int i915_gpu_info_open(struct inode *inode, struct file *file)
 	intel_runtime_pm_get(i915);
 	gpu = i915_capture_gpu_state(i915);
 	intel_runtime_pm_put(i915);
-	if (!gpu)
-		return -ENOMEM;
+	if (IS_ERR(gpu))
+		return PTR_ERR(gpu);
 
 	file->private_data = gpu;
 	return 0;
@@ -1018,7 +1018,13 @@ i915_error_state_write(struct file *filp,
 
 static int i915_error_state_open(struct inode *inode, struct file *file)
 {
-	file->private_data = i915_first_error_state(inode->i_private);
+	struct i915_gpu_state *error;
+
+	error = i915_first_error_state(inode->i_private);
+	if (IS_ERR(error))
+		return PTR_ERR(error);
+
+	file->private_data  = error;
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 07465123c166..3f9ce403c755 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1907,9 +1907,16 @@ i915_capture_gpu_state(struct drm_i915_private *i915)
 {
 	struct i915_gpu_state *error;
 
+	/* Check if GPU capture has been disabled */
+	error = READ_ONCE(i915->gpu_error.first_error);
+	if (IS_ERR(error))
+		return error;
+
 	error = kzalloc(sizeof(*error), GFP_ATOMIC);
-	if (!error)
-		return NULL;
+	if (!error) {
+		i915_disable_error_state(i915, -ENOMEM);
+		return ERR_PTR(-ENOMEM);
+	}
 
 	kref_init(&error->ref);
 	error->i915 = i915;
@@ -1945,11 +1952,8 @@ void i915_capture_error_state(struct drm_i915_private *i915,
 		return;
 
 	error = i915_capture_gpu_state(i915);
-	if (!error) {
-		DRM_DEBUG_DRIVER("out of memory, not capturing error state\n");
-		i915_disable_error_state(i915, -ENOMEM);
+	if (IS_ERR(error))
 		return;
-	}
 
 	i915_error_capture_msg(i915, error, engine_mask, error_msg);
 	DRM_INFO("%s\n", error->error_msg);
@@ -1987,7 +1991,7 @@ i915_first_error_state(struct drm_i915_private *i915)
 
 	spin_lock_irq(&i915->gpu_error.lock);
 	error = i915->gpu_error.first_error;
-	if (error)
+	if (!IS_ERR_OR_NULL(error))
 		i915_gpu_state_get(error);
 	spin_unlock_irq(&i915->gpu_error.lock);
 
@@ -2000,10 +2004,11 @@ void i915_reset_error_state(struct drm_i915_private *i915)
 
 	spin_lock_irq(&i915->gpu_error.lock);
 	error = i915->gpu_error.first_error;
-	i915->gpu_error.first_error = NULL;
+	if (error != ERR_PTR(-ENODEV)) /* if disabled, always disabled */
+		i915->gpu_error.first_error = NULL;
 	spin_unlock_irq(&i915->gpu_error.lock);
 
-	if (!IS_ERR(error))
+	if (!IS_ERR_OR_NULL(error))
 		i915_gpu_state_put(error);
 }
 
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 535caebd9813..c0cfe7ae2ba5 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -521,7 +521,9 @@ static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
 	ssize_t ret;
 
 	gpu = i915_first_error_state(i915);
-	if (gpu) {
+	if (IS_ERR(gpu)) {
+		ret = PTR_ERR(gpu);
+	} else if (gpu) {
 		ret = i915_gpu_state_copy_to_buffer(gpu, buf, off, count);
 		i915_gpu_state_put(gpu);
 	} else {

From a889580c087a9cf91fddb3832ece284174214183 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 7 Dec 2018 13:40:37 +0000
Subject: [PATCH 028/118] drm/i915: Flush GPU relocs harder for gen3

Adding an extra MI_STORE_DWORD_IMM to the gpu relocation path for gen3
was good, but still not good enough. To survive 24+ hours under test we
needed to perform not one, not two but three extra store-dw. Doing so
for each GPU relocation was a little unsightly and since we need to
worry about userspace hitting the same issues, we should apply the dummy
store-dw into the EMIT_FLUSH.

Fixes: 7dd4f6729f92 ("drm/i915: Async GPU relocation processing")
References: 7fa28e146994 ("drm/i915: Write GPU relocs harder with gen3")
Testcase: igt/gem_tiled_fence_blits # blb/pnv
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207134037.11848-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |  7 +------
 drivers/gpu/drm/i915/intel_ringbuffer.c    | 15 ++++++++++++---
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 7b3ae2333dbf..1a1c04db6c80 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1268,7 +1268,7 @@ relocate_entry(struct i915_vma *vma,
 		else if (gen >= 4)
 			len = 4;
 		else
-			len = 6;
+			len = 3;
 
 		batch = reloc_gpu(eb, vma, len);
 		if (IS_ERR(batch))
@@ -1309,11 +1309,6 @@ relocate_entry(struct i915_vma *vma,
 			*batch++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
 			*batch++ = addr;
 			*batch++ = target_offset;
-
-			/* And again for good measure (blb/pnv) */
-			*batch++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
-			*batch++ = addr;
-			*batch++ = target_offset;
 		}
 
 		goto out;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 74a4d587c312..02f6a9b81083 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -69,19 +69,28 @@ unsigned int intel_ring_update_space(struct intel_ring *ring)
 static int
 gen2_render_ring_flush(struct i915_request *rq, u32 mode)
 {
+	unsigned int num_store_dw;
 	u32 cmd, *cs;
 
 	cmd = MI_FLUSH;
-
+	num_store_dw = 0;
 	if (mode & EMIT_INVALIDATE)
 		cmd |= MI_READ_FLUSH;
+	if (mode & EMIT_FLUSH)
+		num_store_dw = 4;
 
-	cs = intel_ring_begin(rq, 2);
+	cs = intel_ring_begin(rq, 2 + 3 * num_store_dw);
 	if (IS_ERR(cs))
 		return PTR_ERR(cs);
 
 	*cs++ = cmd;
-	*cs++ = MI_NOOP;
+	while (num_store_dw--) {
+		*cs++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
+		*cs++ = i915_scratch_offset(rq->i915);
+		*cs++ = 0;
+	}
+	*cs++ = MI_FLUSH | MI_NO_WRITE_FLUSH;
+
 	intel_ring_advance(rq, cs);
 
 	return 0;

From 099a132bfb65b76f318390d66a090afbaa31518d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 13 Nov 2018 19:23:28 +0200
Subject: [PATCH 029/118] drm/i915: Use explicit old crtc state in
 skl_compute_wm()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

skl_compute_wm() wants to compare the old and new watermarks. Currently
it gets at the old watermarks via crtc->state, which is confusing since
it can point at either the old or the new state depending on where
in the sequence we are. In this case it is correct since we have not yet
swapped the states, but let's make it super clear what this is doing
by using the explicit old state.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181113172330.26069-1-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a26b4eddda25..eadcece720ce 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5526,6 +5526,7 @@ skl_compute_wm(struct drm_atomic_state *state)
 {
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *cstate;
+	struct drm_crtc_state *old_crtc_state;
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct skl_ddb_values *results = &intel_state->wm_results;
 	struct skl_pipe_wm *pipe_wm;
@@ -5553,11 +5554,11 @@ skl_compute_wm(struct drm_atomic_state *state)
 	 * should allow skl_update_pipe_wm() to return failure in cases where
 	 * no suitable watermark values can be found.
 	 */
-	for_each_new_crtc_in_state(state, crtc, cstate, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, cstate, i) {
 		struct intel_crtc_state *intel_cstate =
 			to_intel_crtc_state(cstate);
 		const struct skl_pipe_wm *old_pipe_wm =
-			&to_intel_crtc_state(crtc->state)->wm.skl.optimal;
+			&to_intel_crtc_state(old_crtc_state)->wm.skl.optimal;
 
 		pipe_wm = &intel_cstate->wm.skl.optimal;
 		ret = skl_update_pipe_wm(cstate, old_pipe_wm, pipe_wm, &changed);

From f9a954ff02dfa6c7b3cf76281ee47d7373269b1d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 13 Nov 2018 19:23:29 +0200
Subject: [PATCH 030/118] drm/i915: Remove bogus FIXME from SKL wm computation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We do return an error when the watermark calculation fails, so
the FIXME claiming otherwise is outdated. Remove it.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181113172330.26069-2-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index eadcece720ce..8ed88b4a9220 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5549,10 +5549,6 @@ skl_compute_wm(struct drm_atomic_state *state)
 	 * Note that the DDB allocation above may have added more CRTC's that
 	 * weren't otherwise being modified (and set bits in dirty_pipes) if
 	 * pipe allocations had to change.
-	 *
-	 * FIXME:  Now that we're doing this in the atomic check phase, we
-	 * should allow skl_update_pipe_wm() to return failure in cases where
-	 * no suitable watermark values can be found.
 	 */
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, cstate, i) {
 		struct intel_crtc_state *intel_cstate =

From 0b5b45a61d3ff60b270126f1b5825654a5f9bab5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 13 Nov 2018 19:23:30 +0200
Subject: [PATCH 031/118] drm/i915: Remove dead update_wm_pre assignment from
 SKL wm code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

SKL+ do not use crtc_state->update_wm_pre, so there is absolutely no
point it setting it. crtc_state->update_wm_pre only exists as a
temporary hack for pre-g4x platforms until we redo their
watermarks to be be atomic.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181113172330.26069-3-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 8ed88b4a9220..9466c12364c4 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5568,12 +5568,6 @@ skl_compute_wm(struct drm_atomic_state *state)
 
 		if (changed)
 			results->dirty_pipes |= drm_crtc_mask(crtc);
-
-		if ((results->dirty_pipes & drm_crtc_mask(crtc)) == 0)
-			/* This pipe's WM's did not change */
-			continue;
-
-		intel_cstate->update_wm_pre = true;
 	}
 
 	skl_print_wm_changes(intel_state);

From cd1d3ee90e5e5dc4da50b6c5d50bc74872288789 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Mon, 10 Dec 2018 13:54:14 -0800
Subject: [PATCH 032/118] drm/i915: Use intel_ types more consistently for
 watermark code (v2)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Try to be more consistent about intel_* types rather than drm_* types
for lower-level driver functions.

v2:
 - Also drop the intel_crtc parameter from compute_intermediate_wm()
   since we can just extract it from the crtc_state parameter. (Ville)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181210215415.19854-1-matthew.d.roper@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h      |   6 +-
 drivers/gpu/drm/i915/intel_display.c |  33 ++--
 drivers/gpu/drm/i915/intel_drv.h     |  10 +-
 drivers/gpu/drm/i915/intel_pm.c      | 255 ++++++++++++---------------
 4 files changed, 137 insertions(+), 167 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0689e67c966e..330fc0d39c8d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -281,16 +281,14 @@ struct drm_i915_display_funcs {
 	int (*get_fifo_size)(struct drm_i915_private *dev_priv,
 			     enum i9xx_plane_id i9xx_plane);
 	int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
-	int (*compute_intermediate_wm)(struct drm_device *dev,
-				       struct intel_crtc *intel_crtc,
-				       struct intel_crtc_state *newstate);
+	int (*compute_intermediate_wm)(struct intel_crtc_state *newstate);
 	void (*initial_watermarks)(struct intel_atomic_state *state,
 				   struct intel_crtc_state *cstate);
 	void (*atomic_update_watermarks)(struct intel_atomic_state *state,
 					 struct intel_crtc_state *cstate);
 	void (*optimize_watermarks)(struct intel_atomic_state *state,
 				    struct intel_crtc_state *cstate);
-	int (*compute_global_watermarks)(struct drm_atomic_state *state);
+	int (*compute_global_watermarks)(struct intel_atomic_state *state);
 	void (*update_wm)(struct intel_crtc *crtc);
 	int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
 	/* Returns the active state of the crtc, and if the crtc is active,
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 07c861884c70..943d6832b05d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10661,12 +10661,9 @@ static void intel_crtc_destroy(struct drm_crtc *crtc)
  *
  * Returns true or false.
  */
-static bool intel_wm_need_update(struct drm_plane *plane,
-				 struct drm_plane_state *state)
+static bool intel_wm_need_update(struct intel_plane_state *cur,
+				 struct intel_plane_state *new)
 {
-	struct intel_plane_state *new = to_intel_plane_state(state);
-	struct intel_plane_state *cur = to_intel_plane_state(plane->state);
-
 	/* Update watermarks on tiling or size changes. */
 	if (new->base.visible != cur->base.visible)
 		return true;
@@ -10775,7 +10772,8 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat
 		/* must disable cxsr around plane enable/disable */
 		if (plane->id != PLANE_CURSOR)
 			pipe_config->disable_cxsr = true;
-	} else if (intel_wm_need_update(&plane->base, plane_state)) {
+	} else if (intel_wm_need_update(to_intel_plane_state(plane->base.state),
+					to_intel_plane_state(plane_state))) {
 		if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv)) {
 			/* FIXME bollocks */
 			pipe_config->update_wm_pre = true;
@@ -10954,8 +10952,7 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
 static int intel_crtc_atomic_check(struct drm_crtc *crtc,
 				   struct drm_crtc_state *crtc_state)
 {
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_crtc_state *pipe_config =
 		to_intel_crtc_state(crtc_state);
@@ -11004,9 +11001,7 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
 		 * old state and the new state.  We can program these
 		 * immediately.
 		 */
-		ret = dev_priv->display.compute_intermediate_wm(dev,
-								intel_crtc,
-								pipe_config);
+		ret = dev_priv->display.compute_intermediate_wm(pipe_config);
 		if (ret) {
 			DRM_DEBUG_KMS("No valid intermediate pipe watermarks are possible\n");
 			return ret;
@@ -11964,7 +11959,7 @@ static void verify_wm_state(struct drm_crtc *crtc,
 	if (INTEL_GEN(dev_priv) < 9 || !new_state->active)
 		return;
 
-	skl_pipe_wm_get_hw_state(crtc, &hw_wm);
+	skl_pipe_wm_get_hw_state(intel_crtc, &hw_wm);
 	sw_wm = &to_intel_crtc_state(new_state)->wm.skl.optimal;
 
 	skl_pipe_ddb_get_hw_state(intel_crtc, hw_ddb_y, hw_ddb_uv);
@@ -12619,9 +12614,9 @@ static int intel_modeset_checks(struct drm_atomic_state *state)
  * phase.  The code here should be run after the per-crtc and per-plane 'check'
  * handlers to ensure that all derived state has been updated.
  */
-static int calc_watermark_data(struct drm_atomic_state *state)
+static int calc_watermark_data(struct intel_atomic_state *state)
 {
-	struct drm_device *dev = state->dev;
+	struct drm_device *dev = state->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
 	/* Is there platform-specific watermark information to calculate? */
@@ -12713,7 +12708,7 @@ static int intel_atomic_check(struct drm_device *dev,
 		return ret;
 
 	intel_fbc_choose_crtc(dev_priv, intel_state);
-	return calc_watermark_data(state);
+	return calc_watermark_data(intel_state);
 }
 
 static int intel_atomic_prepare_commit(struct drm_device *dev,
@@ -15843,15 +15838,15 @@ intel_modeset_setup_hw_state(struct drm_device *dev,
 	}
 
 	if (IS_G4X(dev_priv)) {
-		g4x_wm_get_hw_state(dev);
+		g4x_wm_get_hw_state(dev_priv);
 		g4x_wm_sanitize(dev_priv);
 	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-		vlv_wm_get_hw_state(dev);
+		vlv_wm_get_hw_state(dev_priv);
 		vlv_wm_sanitize(dev_priv);
 	} else if (INTEL_GEN(dev_priv) >= 9) {
-		skl_wm_get_hw_state(dev);
+		skl_wm_get_hw_state(dev_priv);
 	} else if (HAS_PCH_SPLIT(dev_priv)) {
-		ilk_wm_get_hw_state(dev);
+		ilk_wm_get_hw_state(dev_priv);
 	}
 
 	for_each_intel_crtc(dev, crtc) {
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index f94a04b4ad87..a8177ccf1d4f 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2200,16 +2200,16 @@ void gen6_rps_busy(struct drm_i915_private *dev_priv);
 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
 void gen6_rps_idle(struct drm_i915_private *dev_priv);
 void gen6_rps_boost(struct i915_request *rq, struct intel_rps_client *rps);
-void g4x_wm_get_hw_state(struct drm_device *dev);
-void vlv_wm_get_hw_state(struct drm_device *dev);
-void ilk_wm_get_hw_state(struct drm_device *dev);
-void skl_wm_get_hw_state(struct drm_device *dev);
+void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
+void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
+void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
+void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
 			       struct skl_ddb_entry *ddb_y,
 			       struct skl_ddb_entry *ddb_uv);
 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
 			  struct skl_ddb_allocation *ddb /* out */);
-void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
+void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
 			      struct skl_pipe_wm *out);
 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9466c12364c4..2bba5315b764 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1399,10 +1399,9 @@ static int g4x_compute_pipe_wm(struct intel_crtc_state *crtc_state)
 	return 0;
 }
 
-static int g4x_compute_intermediate_wm(struct drm_device *dev,
-				       struct intel_crtc *crtc,
-				       struct intel_crtc_state *new_crtc_state)
+static int g4x_compute_intermediate_wm(struct intel_crtc_state *new_crtc_state)
 {
+	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->base.crtc);
 	struct g4x_wm_state *intermediate = &new_crtc_state->wm.g4x.intermediate;
 	const struct g4x_wm_state *optimal = &new_crtc_state->wm.g4x.optimal;
 	struct intel_atomic_state *intel_state =
@@ -2032,10 +2031,9 @@ static void vlv_atomic_update_fifo(struct intel_atomic_state *state,
 
 #undef VLV_FIFO
 
-static int vlv_compute_intermediate_wm(struct drm_device *dev,
-				       struct intel_crtc *crtc,
-				       struct intel_crtc_state *new_crtc_state)
+static int vlv_compute_intermediate_wm(struct intel_crtc_state *new_crtc_state)
 {
+	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->base.crtc);
 	struct vlv_wm_state *intermediate = &new_crtc_state->wm.vlv.intermediate;
 	const struct vlv_wm_state *optimal = &new_crtc_state->wm.vlv.optimal;
 	struct intel_atomic_state *intel_state =
@@ -2626,13 +2624,12 @@ static unsigned int ilk_fbc_wm_reg_max(const struct drm_i915_private *dev_priv)
 }
 
 /* Calculate the maximum primary/sprite plane watermark */
-static unsigned int ilk_plane_wm_max(const struct drm_device *dev,
+static unsigned int ilk_plane_wm_max(const struct drm_i915_private *dev_priv,
 				     int level,
 				     const struct intel_wm_config *config,
 				     enum intel_ddb_partitioning ddb_partitioning,
 				     bool is_sprite)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	unsigned int fifo_size = ilk_display_fifo_size(dev_priv);
 
 	/* if sprites aren't enabled, sprites get nothing */
@@ -2668,7 +2665,7 @@ static unsigned int ilk_plane_wm_max(const struct drm_device *dev,
 }
 
 /* Calculate the maximum cursor plane watermark */
-static unsigned int ilk_cursor_wm_max(const struct drm_device *dev,
+static unsigned int ilk_cursor_wm_max(const struct drm_i915_private *dev_priv,
 				      int level,
 				      const struct intel_wm_config *config)
 {
@@ -2677,19 +2674,19 @@ static unsigned int ilk_cursor_wm_max(const struct drm_device *dev,
 		return 64;
 
 	/* otherwise just report max that registers can hold */
-	return ilk_cursor_wm_reg_max(to_i915(dev), level);
+	return ilk_cursor_wm_reg_max(dev_priv, level);
 }
 
-static void ilk_compute_wm_maximums(const struct drm_device *dev,
+static void ilk_compute_wm_maximums(const struct drm_i915_private *dev_priv,
 				    int level,
 				    const struct intel_wm_config *config,
 				    enum intel_ddb_partitioning ddb_partitioning,
 				    struct ilk_wm_maximums *max)
 {
-	max->pri = ilk_plane_wm_max(dev, level, config, ddb_partitioning, false);
-	max->spr = ilk_plane_wm_max(dev, level, config, ddb_partitioning, true);
-	max->cur = ilk_cursor_wm_max(dev, level, config);
-	max->fbc = ilk_fbc_wm_reg_max(to_i915(dev));
+	max->pri = ilk_plane_wm_max(dev_priv, level, config, ddb_partitioning, false);
+	max->spr = ilk_plane_wm_max(dev_priv, level, config, ddb_partitioning, true);
+	max->cur = ilk_cursor_wm_max(dev_priv, level, config);
+	max->fbc = ilk_fbc_wm_reg_max(dev_priv);
 }
 
 static void ilk_compute_wm_reg_maximums(const struct drm_i915_private *dev_priv,
@@ -3073,7 +3070,7 @@ static void skl_setup_wm_latency(struct drm_i915_private *dev_priv)
 	intel_print_wm_latency(dev_priv, "Gen9 Plane", dev_priv->wm.skl_latency);
 }
 
-static bool ilk_validate_pipe_wm(struct drm_device *dev,
+static bool ilk_validate_pipe_wm(const struct drm_i915_private *dev_priv,
 				 struct intel_pipe_wm *pipe_wm)
 {
 	/* LP0 watermark maximums depend on this pipe alone */
@@ -3085,7 +3082,7 @@ static bool ilk_validate_pipe_wm(struct drm_device *dev,
 	struct ilk_wm_maximums max;
 
 	/* LP0 watermarks always use 1/2 DDB partitioning */
-	ilk_compute_wm_maximums(dev, 0, &config, INTEL_DDB_PART_1_2, &max);
+	ilk_compute_wm_maximums(dev_priv, 0, &config, INTEL_DDB_PART_1_2, &max);
 
 	/* At least LP0 must be valid */
 	if (!ilk_validate_wm_level(0, &max, &pipe_wm->wm[0])) {
@@ -3150,7 +3147,7 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 		pipe_wm->linetime = hsw_compute_linetime_wm(cstate);
 
-	if (!ilk_validate_pipe_wm(dev, pipe_wm))
+	if (!ilk_validate_pipe_wm(dev_priv, pipe_wm))
 		return -EINVAL;
 
 	ilk_compute_wm_reg_maximums(dev_priv, 1, &max);
@@ -3180,17 +3177,17 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
  * state and the new state.  These can be programmed to the hardware
  * immediately.
  */
-static int ilk_compute_intermediate_wm(struct drm_device *dev,
-				       struct intel_crtc *intel_crtc,
-				       struct intel_crtc_state *newstate)
+static int ilk_compute_intermediate_wm(struct intel_crtc_state *newstate)
 {
+	struct intel_crtc *intel_crtc = to_intel_crtc(newstate->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
 	struct intel_pipe_wm *a = &newstate->wm.ilk.intermediate;
 	struct intel_atomic_state *intel_state =
 		to_intel_atomic_state(newstate->base.state);
 	const struct intel_crtc_state *oldstate =
 		intel_atomic_get_old_crtc_state(intel_state, intel_crtc);
 	const struct intel_pipe_wm *b = &oldstate->wm.ilk.optimal;
-	int level, max_level = ilk_wm_max_level(to_i915(dev));
+	int level, max_level = ilk_wm_max_level(dev_priv);
 
 	/*
 	 * Start with the final, target watermarks, then combine with the
@@ -3223,7 +3220,7 @@ static int ilk_compute_intermediate_wm(struct drm_device *dev,
 	 * there's no safe way to transition from the old state to
 	 * the new state, so we need to fail the atomic transaction.
 	 */
-	if (!ilk_validate_pipe_wm(dev, a))
+	if (!ilk_validate_pipe_wm(dev_priv, a))
 		return -EINVAL;
 
 	/*
@@ -3239,7 +3236,7 @@ static int ilk_compute_intermediate_wm(struct drm_device *dev,
 /*
  * Merge the watermarks from all active pipes for a specific level.
  */
-static void ilk_merge_wm_level(struct drm_device *dev,
+static void ilk_merge_wm_level(struct drm_i915_private *dev_priv,
 			       int level,
 			       struct intel_wm_level *ret_wm)
 {
@@ -3247,7 +3244,7 @@ static void ilk_merge_wm_level(struct drm_device *dev,
 
 	ret_wm->enable = true;
 
-	for_each_intel_crtc(dev, intel_crtc) {
+	for_each_intel_crtc(&dev_priv->drm, intel_crtc) {
 		const struct intel_pipe_wm *active = &intel_crtc->wm.active.ilk;
 		const struct intel_wm_level *wm = &active->wm[level];
 
@@ -3272,12 +3269,11 @@ static void ilk_merge_wm_level(struct drm_device *dev,
 /*
  * Merge all low power watermarks for all active pipes.
  */
-static void ilk_wm_merge(struct drm_device *dev,
+static void ilk_wm_merge(struct drm_i915_private *dev_priv,
 			 const struct intel_wm_config *config,
 			 const struct ilk_wm_maximums *max,
 			 struct intel_pipe_wm *merged)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	int level, max_level = ilk_wm_max_level(dev_priv);
 	int last_enabled_level = max_level;
 
@@ -3293,7 +3289,7 @@ static void ilk_wm_merge(struct drm_device *dev,
 	for (level = 1; level <= max_level; level++) {
 		struct intel_wm_level *wm = &merged->wm[level];
 
-		ilk_merge_wm_level(dev, level, wm);
+		ilk_merge_wm_level(dev_priv, level, wm);
 
 		if (level > last_enabled_level)
 			wm->enable = false;
@@ -3335,22 +3331,20 @@ static int ilk_wm_lp_to_level(int wm_lp, const struct intel_pipe_wm *pipe_wm)
 }
 
 /* The value we need to program into the WM_LPx latency field */
-static unsigned int ilk_wm_lp_latency(struct drm_device *dev, int level)
+static unsigned int ilk_wm_lp_latency(struct drm_i915_private *dev_priv,
+				      int level)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
-
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 		return 2 * level;
 	else
 		return dev_priv->wm.pri_latency[level];
 }
 
-static void ilk_compute_wm_results(struct drm_device *dev,
+static void ilk_compute_wm_results(struct drm_i915_private *dev_priv,
 				   const struct intel_pipe_wm *merged,
 				   enum intel_ddb_partitioning partitioning,
 				   struct ilk_wm_values *results)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *intel_crtc;
 	int level, wm_lp;
 
@@ -3370,7 +3364,7 @@ static void ilk_compute_wm_results(struct drm_device *dev,
 		 * disabled. Doing otherwise could cause underruns.
 		 */
 		results->wm_lp[wm_lp - 1] =
-			(ilk_wm_lp_latency(dev, level) << WM1_LP_LATENCY_SHIFT) |
+			(ilk_wm_lp_latency(dev_priv, level) << WM1_LP_LATENCY_SHIFT) |
 			(r->pri_val << WM1_LP_SR_SHIFT) |
 			r->cur_val;
 
@@ -3396,7 +3390,7 @@ static void ilk_compute_wm_results(struct drm_device *dev,
 	}
 
 	/* LP0 register values */
-	for_each_intel_crtc(dev, intel_crtc) {
+	for_each_intel_crtc(&dev_priv->drm, intel_crtc) {
 		enum pipe pipe = intel_crtc->pipe;
 		const struct intel_wm_level *r =
 			&intel_crtc->wm.active.ilk.wm[0];
@@ -3415,11 +3409,12 @@ static void ilk_compute_wm_results(struct drm_device *dev,
 
 /* Find the result with the highest level enabled. Check for enable_fbc_wm in
  * case both are at the same level. Prefer r1 in case they're the same. */
-static struct intel_pipe_wm *ilk_find_best_result(struct drm_device *dev,
-						  struct intel_pipe_wm *r1,
-						  struct intel_pipe_wm *r2)
+static struct intel_pipe_wm *
+ilk_find_best_result(struct drm_i915_private *dev_priv,
+		     struct intel_pipe_wm *r1,
+		     struct intel_pipe_wm *r2)
 {
-	int level, max_level = ilk_wm_max_level(to_i915(dev));
+	int level, max_level = ilk_wm_max_level(dev_priv);
 	int level1 = 0, level2 = 0;
 
 	for (level = 1; level <= max_level; level++) {
@@ -4307,10 +4302,9 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate,
 }
 
 static uint16_t
-skl_ddb_min_alloc(const struct drm_plane_state *pstate, const int plane)
+skl_ddb_min_alloc(const struct intel_plane_state *plane_state, const int plane)
 {
-	struct drm_framebuffer *fb = pstate->fb;
-	struct intel_plane_state *intel_pstate = to_intel_plane_state(pstate);
+	struct drm_framebuffer *fb = plane_state->base.fb;
 	uint32_t src_w, src_h;
 	uint32_t min_scanlines = 8;
 	uint8_t plane_bpp;
@@ -4334,8 +4328,8 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate, const int plane)
 	 * the 90/270 degree plane rotation cases (to match the
 	 * GTT mapping), hence no need to account for rotation here.
 	 */
-	src_w = drm_rect_width(&intel_pstate->base.src) >> 16;
-	src_h = drm_rect_height(&intel_pstate->base.src) >> 16;
+	src_w = drm_rect_width(&plane_state->base.src) >> 16;
+	src_h = drm_rect_height(&plane_state->base.src) >> 16;
 
 	/* Halve UV plane width and height for NV12 */
 	if (plane == 1) {
@@ -4345,7 +4339,7 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate, const int plane)
 
 	plane_bpp = fb->format->cpp[plane];
 
-	if (drm_rotation_90_or_270(pstate->rotation)) {
+	if (drm_rotation_90_or_270(plane_state->base.rotation)) {
 		switch (plane_bpp) {
 		case 1:
 			min_scanlines = 32;
@@ -4388,14 +4382,15 @@ skl_ddb_calc_min(const struct intel_crtc_state *cstate, int num_active,
 			continue;
 
 		if (!plane_state->linked_plane) {
-			minimum[plane_id] = skl_ddb_min_alloc(pstate, 0);
-			uv_minimum[plane_id] = skl_ddb_min_alloc(pstate, 1);
+			minimum[plane_id] = skl_ddb_min_alloc(plane_state, 0);
+			uv_minimum[plane_id] =
+				skl_ddb_min_alloc(plane_state, 1);
 		} else {
 			enum plane_id y_plane_id =
 				plane_state->linked_plane->id;
 
-			minimum[y_plane_id] = skl_ddb_min_alloc(pstate, 0);
-			minimum[plane_id] = skl_ddb_min_alloc(pstate, 1);
+			minimum[y_plane_id] = skl_ddb_min_alloc(plane_state, 0);
+			minimum[plane_id] = skl_ddb_min_alloc(plane_state, 1);
 		}
 	}
 
@@ -5251,15 +5246,14 @@ bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
 	return false;
 }
 
-static int skl_update_pipe_wm(struct drm_crtc_state *cstate,
+static int skl_update_pipe_wm(struct intel_crtc_state *cstate,
 			      const struct skl_pipe_wm *old_pipe_wm,
 			      struct skl_pipe_wm *pipe_wm, /* out */
 			      bool *changed /* out */)
 {
-	struct intel_crtc_state *intel_cstate = to_intel_crtc_state(cstate);
 	int ret;
 
-	ret = skl_build_pipe_wm(intel_cstate, pipe_wm);
+	ret = skl_build_pipe_wm(cstate, pipe_wm);
 	if (ret)
 		return ret;
 
@@ -5272,14 +5266,14 @@ static int skl_update_pipe_wm(struct drm_crtc_state *cstate,
 }
 
 static uint32_t
-pipes_modified(struct drm_atomic_state *state)
+pipes_modified(struct intel_atomic_state *state)
 {
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *cstate;
+	struct intel_crtc *crtc;
+	struct intel_crtc_state *cstate;
 	uint32_t i, ret = 0;
 
-	for_each_new_crtc_in_state(state, crtc, cstate, i)
-		ret |= drm_crtc_mask(crtc);
+	for_each_new_intel_crtc_in_state(state, crtc, cstate, i)
+		ret |= drm_crtc_mask(&crtc->base);
 
 	return ret;
 }
@@ -5314,11 +5308,10 @@ skl_ddb_add_affected_planes(const struct intel_crtc_state *old_crtc_state,
 }
 
 static int
-skl_compute_ddb(struct drm_atomic_state *state)
+skl_compute_ddb(struct intel_atomic_state *state)
 {
-	const struct drm_i915_private *dev_priv = to_i915(state->dev);
-	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
-	struct skl_ddb_allocation *ddb = &intel_state->wm_results.ddb;
+	const struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+	struct skl_ddb_allocation *ddb = &state->wm_results.ddb;
 	struct intel_crtc_state *old_crtc_state;
 	struct intel_crtc_state *new_crtc_state;
 	struct intel_crtc *crtc;
@@ -5326,7 +5319,7 @@ skl_compute_ddb(struct drm_atomic_state *state)
 
 	memcpy(ddb, &dev_priv->wm.skl_hw.ddb, sizeof(*ddb));
 
-	for_each_oldnew_intel_crtc_in_state(intel_state, crtc, old_crtc_state,
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
 					    new_crtc_state, i) {
 		ret = skl_allocate_pipe_ddb(new_crtc_state, ddb);
 		if (ret)
@@ -5372,14 +5365,12 @@ skl_print_wm_changes(struct intel_atomic_state *state)
 }
 
 static int
-skl_ddb_add_affected_pipes(struct drm_atomic_state *state, bool *changed)
+skl_ddb_add_affected_pipes(struct intel_atomic_state *state, bool *changed)
 {
-	struct drm_device *dev = state->dev;
+	struct drm_device *dev = state->base.dev;
 	const struct drm_i915_private *dev_priv = to_i915(dev);
-	const struct drm_crtc *crtc;
-	const struct drm_crtc_state *cstate;
-	struct intel_crtc *intel_crtc;
-	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
+	struct intel_crtc *crtc;
+	struct intel_crtc_state *crtc_state;
 	uint32_t realloc_pipes = pipes_modified(state);
 	int ret, i;
 
@@ -5398,7 +5389,7 @@ skl_ddb_add_affected_pipes(struct drm_atomic_state *state, bool *changed)
 	 * since any racing commits that want to update them would need to
 	 * hold _all_ CRTC state mutexes.
 	 */
-	for_each_new_crtc_in_state(state, crtc, cstate, i)
+	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i)
 		(*changed) = true;
 
 	if (!*changed)
@@ -5412,20 +5403,20 @@ skl_ddb_add_affected_pipes(struct drm_atomic_state *state, bool *changed)
 	 */
 	if (dev_priv->wm.distrust_bios_wm) {
 		ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
-				       state->acquire_ctx);
+				       state->base.acquire_ctx);
 		if (ret)
 			return ret;
 
-		intel_state->active_pipe_changes = ~0;
+		state->active_pipe_changes = ~0;
 
 		/*
-		 * We usually only initialize intel_state->active_crtcs if we
+		 * We usually only initialize state->active_crtcs if we
 		 * we're doing a modeset; make sure this field is always
 		 * initialized during the sanitization process that happens
 		 * on the first commit too.
 		 */
-		if (!intel_state->modeset)
-			intel_state->active_crtcs = dev_priv->active_crtcs;
+		if (!state->modeset)
+			state->active_crtcs = dev_priv->active_crtcs;
 	}
 
 	/*
@@ -5441,21 +5432,19 @@ skl_ddb_add_affected_pipes(struct drm_atomic_state *state, bool *changed)
 	 * any other display updates race with this transaction, so we need
 	 * to grab the lock on *all* CRTC's.
 	 */
-	if (intel_state->active_pipe_changes || intel_state->modeset) {
+	if (state->active_pipe_changes || state->modeset) {
 		realloc_pipes = ~0;
-		intel_state->wm_results.dirty_pipes = ~0;
+		state->wm_results.dirty_pipes = ~0;
 	}
 
 	/*
 	 * We're not recomputing for the pipes not included in the commit, so
 	 * make sure we start with the current state.
 	 */
-	for_each_intel_crtc_mask(dev, intel_crtc, realloc_pipes) {
-		struct intel_crtc_state *cstate;
-
-		cstate = intel_atomic_get_crtc_state(state, intel_crtc);
-		if (IS_ERR(cstate))
-			return PTR_ERR(cstate);
+	for_each_intel_crtc_mask(dev, crtc, realloc_pipes) {
+		crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
 	}
 
 	return 0;
@@ -5522,13 +5511,12 @@ static int skl_wm_add_affected_planes(struct intel_atomic_state *state,
 }
 
 static int
-skl_compute_wm(struct drm_atomic_state *state)
+skl_compute_wm(struct intel_atomic_state *state)
 {
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *cstate;
-	struct drm_crtc_state *old_crtc_state;
-	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
-	struct skl_ddb_values *results = &intel_state->wm_results;
+	struct intel_crtc *crtc;
+	struct intel_crtc_state *cstate;
+	struct intel_crtc_state *old_crtc_state;
+	struct skl_ddb_values *results = &state->wm_results;
 	struct skl_pipe_wm *pipe_wm;
 	bool changed = false;
 	int ret, i;
@@ -5550,27 +5538,25 @@ skl_compute_wm(struct drm_atomic_state *state)
 	 * weren't otherwise being modified (and set bits in dirty_pipes) if
 	 * pipe allocations had to change.
 	 */
-	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, cstate, i) {
-		struct intel_crtc_state *intel_cstate =
-			to_intel_crtc_state(cstate);
+	for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+					    cstate, i) {
 		const struct skl_pipe_wm *old_pipe_wm =
-			&to_intel_crtc_state(old_crtc_state)->wm.skl.optimal;
+			&old_crtc_state->wm.skl.optimal;
 
-		pipe_wm = &intel_cstate->wm.skl.optimal;
+		pipe_wm = &cstate->wm.skl.optimal;
 		ret = skl_update_pipe_wm(cstate, old_pipe_wm, pipe_wm, &changed);
 		if (ret)
 			return ret;
 
-		ret = skl_wm_add_affected_planes(intel_state,
-						 to_intel_crtc(crtc));
+		ret = skl_wm_add_affected_planes(state, crtc);
 		if (ret)
 			return ret;
 
 		if (changed)
-			results->dirty_pipes |= drm_crtc_mask(crtc);
+			results->dirty_pipes |= drm_crtc_mask(&crtc->base);
 	}
 
-	skl_print_wm_changes(intel_state);
+	skl_print_wm_changes(state);
 
 	return 0;
 }
@@ -5608,13 +5594,13 @@ static void skl_initial_wm(struct intel_atomic_state *state,
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
 
-static void ilk_compute_wm_config(struct drm_device *dev,
+static void ilk_compute_wm_config(struct drm_i915_private *dev_priv,
 				  struct intel_wm_config *config)
 {
 	struct intel_crtc *crtc;
 
 	/* Compute the currently _active_ config */
-	for_each_intel_crtc(dev, crtc) {
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
 		const struct intel_pipe_wm *wm = &crtc->wm.active.ilk;
 
 		if (!wm->pipe_enabled)
@@ -5628,25 +5614,24 @@ static void ilk_compute_wm_config(struct drm_device *dev,
 
 static void ilk_program_watermarks(struct drm_i915_private *dev_priv)
 {
-	struct drm_device *dev = &dev_priv->drm;
 	struct intel_pipe_wm lp_wm_1_2 = {}, lp_wm_5_6 = {}, *best_lp_wm;
 	struct ilk_wm_maximums max;
 	struct intel_wm_config config = {};
 	struct ilk_wm_values results = {};
 	enum intel_ddb_partitioning partitioning;
 
-	ilk_compute_wm_config(dev, &config);
+	ilk_compute_wm_config(dev_priv, &config);
 
-	ilk_compute_wm_maximums(dev, 1, &config, INTEL_DDB_PART_1_2, &max);
-	ilk_wm_merge(dev, &config, &max, &lp_wm_1_2);
+	ilk_compute_wm_maximums(dev_priv, 1, &config, INTEL_DDB_PART_1_2, &max);
+	ilk_wm_merge(dev_priv, &config, &max, &lp_wm_1_2);
 
 	/* 5/6 split only in single pipe config on IVB+ */
 	if (INTEL_GEN(dev_priv) >= 7 &&
 	    config.num_pipes_active == 1 && config.sprites_enabled) {
-		ilk_compute_wm_maximums(dev, 1, &config, INTEL_DDB_PART_5_6, &max);
-		ilk_wm_merge(dev, &config, &max, &lp_wm_5_6);
+		ilk_compute_wm_maximums(dev_priv, 1, &config, INTEL_DDB_PART_5_6, &max);
+		ilk_wm_merge(dev_priv, &config, &max, &lp_wm_5_6);
 
-		best_lp_wm = ilk_find_best_result(dev, &lp_wm_1_2, &lp_wm_5_6);
+		best_lp_wm = ilk_find_best_result(dev_priv, &lp_wm_1_2, &lp_wm_5_6);
 	} else {
 		best_lp_wm = &lp_wm_1_2;
 	}
@@ -5654,7 +5639,7 @@ static void ilk_program_watermarks(struct drm_i915_private *dev_priv)
 	partitioning = (best_lp_wm == &lp_wm_1_2) ?
 		       INTEL_DDB_PART_1_2 : INTEL_DDB_PART_5_6;
 
-	ilk_compute_wm_results(dev, best_lp_wm, partitioning, &results);
+	ilk_compute_wm_results(dev_priv, best_lp_wm, partitioning, &results);
 
 	ilk_write_wm_values(dev_priv, &results);
 }
@@ -5694,19 +5679,18 @@ static inline void skl_wm_level_from_reg_val(uint32_t val,
 		PLANE_WM_LINES_MASK;
 }
 
-void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
+void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
 			      struct skl_pipe_wm *out)
 {
-	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	enum pipe pipe = intel_crtc->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
 	int level, max_level;
 	enum plane_id plane_id;
 	uint32_t val;
 
 	max_level = ilk_wm_max_level(dev_priv);
 
-	for_each_plane_id_on_crtc(intel_crtc, plane_id) {
+	for_each_plane_id_on_crtc(crtc, plane_id) {
 		struct skl_plane_wm *wm = &out->planes[plane_id];
 
 		for (level = 0; level <= max_level; level++) {
@@ -5726,30 +5710,27 @@ void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
 		skl_wm_level_from_reg_val(val, &wm->trans_wm);
 	}
 
-	if (!intel_crtc->active)
+	if (!crtc->active)
 		return;
 
 	out->linetime = I915_READ(PIPE_WM_LINETIME(pipe));
 }
 
-void skl_wm_get_hw_state(struct drm_device *dev)
+void skl_wm_get_hw_state(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct skl_ddb_values *hw = &dev_priv->wm.skl_hw;
 	struct skl_ddb_allocation *ddb = &dev_priv->wm.skl_hw.ddb;
-	struct drm_crtc *crtc;
-	struct intel_crtc *intel_crtc;
+	struct intel_crtc *crtc;
 	struct intel_crtc_state *cstate;
 
 	skl_ddb_get_hw_state(dev_priv, ddb);
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		intel_crtc = to_intel_crtc(crtc);
-		cstate = to_intel_crtc_state(crtc->state);
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
+		cstate = to_intel_crtc_state(crtc->base.state);
 
 		skl_pipe_wm_get_hw_state(crtc, &cstate->wm.skl.optimal);
 
-		if (intel_crtc->active)
-			hw->dirty_pipes |= drm_crtc_mask(crtc);
+		if (crtc->active)
+			hw->dirty_pipes |= drm_crtc_mask(&crtc->base);
 	}
 
 	if (dev_priv->active_crtcs) {
@@ -5758,15 +5739,14 @@ void skl_wm_get_hw_state(struct drm_device *dev)
 	}
 }
 
-static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
+static void ilk_pipe_wm_get_hw_state(struct intel_crtc *crtc)
 {
-	struct drm_device *dev = crtc->dev;
+	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct ilk_wm_values *hw = &dev_priv->wm.hw;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
+	struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->base.state);
 	struct intel_pipe_wm *active = &cstate->wm.ilk.optimal;
-	enum pipe pipe = intel_crtc->pipe;
+	enum pipe pipe = crtc->pipe;
 	static const i915_reg_t wm0_pipe_reg[] = {
 		[PIPE_A] = WM0_PIPEA_ILK,
 		[PIPE_B] = WM0_PIPEB_ILK,
@@ -5779,7 +5759,7 @@ static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
 
 	memset(active, 0, sizeof(*active));
 
-	active->pipe_enabled = intel_crtc->active;
+	active->pipe_enabled = crtc->active;
 
 	if (active->pipe_enabled) {
 		u32 tmp = hw->wm_pipe[pipe];
@@ -5807,7 +5787,7 @@ static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)
 			active->wm[level].enable = true;
 	}
 
-	intel_crtc->wm.active.ilk = *active;
+	crtc->wm.active.ilk = *active;
 }
 
 #define _FW_WM(value, plane) \
@@ -5917,9 +5897,8 @@ static void vlv_read_wm_values(struct drm_i915_private *dev_priv,
 #undef _FW_WM
 #undef _FW_WM_VLV
 
-void g4x_wm_get_hw_state(struct drm_device *dev)
+void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct g4x_wm_values *wm = &dev_priv->wm.g4x;
 	struct intel_crtc *crtc;
 
@@ -5927,7 +5906,7 @@ void g4x_wm_get_hw_state(struct drm_device *dev)
 
 	wm->cxsr = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
 
-	for_each_intel_crtc(dev, crtc) {
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
 		struct intel_crtc_state *crtc_state =
 			to_intel_crtc_state(crtc->base.state);
 		struct g4x_wm_state *active = &crtc->wm.active.g4x;
@@ -6058,9 +6037,8 @@ void g4x_wm_sanitize(struct drm_i915_private *dev_priv)
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
 
-void vlv_wm_get_hw_state(struct drm_device *dev)
+void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct vlv_wm_values *wm = &dev_priv->wm.vlv;
 	struct intel_crtc *crtc;
 	u32 val;
@@ -6104,7 +6082,7 @@ void vlv_wm_get_hw_state(struct drm_device *dev)
 		mutex_unlock(&dev_priv->pcu_lock);
 	}
 
-	for_each_intel_crtc(dev, crtc) {
+	for_each_intel_crtc(&dev_priv->drm, crtc) {
 		struct intel_crtc_state *crtc_state =
 			to_intel_crtc_state(crtc->base.state);
 		struct vlv_wm_state *active = &crtc->wm.active.vlv;
@@ -6221,15 +6199,14 @@ static void ilk_init_lp_watermarks(struct drm_i915_private *dev_priv)
 	 */
 }
 
-void ilk_wm_get_hw_state(struct drm_device *dev)
+void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct ilk_wm_values *hw = &dev_priv->wm.hw;
-	struct drm_crtc *crtc;
+	struct intel_crtc *crtc;
 
 	ilk_init_lp_watermarks(dev_priv);
 
-	for_each_crtc(dev, crtc)
+	for_each_intel_crtc(&dev_priv->drm, crtc)
 		ilk_pipe_wm_get_hw_state(crtc);
 
 	hw->wm_lp[0] = I915_READ(WM1_LP_ILK);

From 302da0cdf784f2aab5e84aaa14c0132d405542f9 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Mon, 10 Dec 2018 13:54:15 -0800
Subject: [PATCH 033/118] drm/i915: Use intel_ types more consistently for
 color management code (v2)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Try to be more consistent about intel_* types rather than drm_* types
for lower-level driver functions.  While we're at it, let's also be more
consistent with state variable naming (half of the platforms use the
name 'state' whereas the other half used 'crtc_state').

While we're touching these variables, let's also be more consistent
about always naming the intel_crtc_state's "crtc_state" rather than
"state" so that different platform types aren't using different naming
conventions.

v2:
 - s/state/crtc_state/ for consistency between platform types (Ville)
 - Drop the crtc parameter to intel_color_check(); we can just pull that
   out of the state object.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181210215415.19854-2-matthew.d.roper@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h      |   4 +-
 drivers/gpu/drm/i915/intel_color.c   | 215 +++++++++++++--------------
 drivers/gpu/drm/i915/intel_display.c |  20 +--
 drivers/gpu/drm/i915/intel_drv.h     |   8 +-
 4 files changed, 117 insertions(+), 130 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 330fc0d39c8d..e70707e79386 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -320,8 +320,8 @@ struct drm_i915_display_funcs {
 	/* display clock increase/decrease */
 	/* pll clock increase/decrease */
 
-	void (*load_csc_matrix)(struct drm_crtc_state *crtc_state);
-	void (*load_luts)(struct drm_crtc_state *crtc_state);
+	void (*load_csc_matrix)(struct intel_crtc_state *crtc_state);
+	void (*load_luts)(struct intel_crtc_state *crtc_state);
 };
 
 #define CSR_VERSION(major, minor)	((major) << 16 | (minor))
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 5127da286a2b..1d572e83db7f 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -74,12 +74,14 @@
 #define ILK_CSC_COEFF_1_0		\
 	((7 << 12) | ILK_CSC_COEFF_FP(CTM_COEFF_1_0, 8))
 
-static bool crtc_state_is_legacy_gamma(struct drm_crtc_state *state)
+static bool crtc_state_is_legacy_gamma(struct intel_crtc_state *crtc_state)
 {
-	return !state->degamma_lut &&
-		!state->ctm &&
-		state->gamma_lut &&
-		drm_color_lut_size(state->gamma_lut) == LEGACY_LUT_LENGTH;
+	int lut_length = drm_color_lut_size(crtc_state->base.gamma_lut);
+
+	return !crtc_state->base.degamma_lut &&
+		!crtc_state->base.ctm &&
+		crtc_state->base.gamma_lut &&
+		lut_length == LEGACY_LUT_LENGTH;
 }
 
 /*
@@ -108,10 +110,10 @@ static u64 *ctm_mult_by_limited(u64 *result, const u64 *input)
 	return result;
 }
 
-static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *intel_crtc)
+static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *crtc)
 {
-	int pipe = intel_crtc->pipe;
-	struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
+	int pipe = crtc->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
 	I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
 	I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
@@ -132,14 +134,12 @@ static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *intel_crtc)
 	I915_WRITE(PIPE_CSC_MODE(pipe), 0);
 }
 
-static void ilk_load_csc_matrix(struct drm_crtc_state *crtc_state)
+static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
 {
-	struct drm_crtc *crtc = crtc_state->crtc;
-	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int i, pipe = intel_crtc->pipe;
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	int i, pipe = crtc->pipe;
 	uint16_t coeffs[9] = { 0, };
-	struct intel_crtc_state *intel_crtc_state = to_intel_crtc_state(crtc_state);
 	bool limited_color_range = false;
 
 	/*
@@ -147,14 +147,14 @@ static void ilk_load_csc_matrix(struct drm_crtc_state *crtc_state)
 	 * do the range compression using the gamma LUT instead.
 	 */
 	if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
-		limited_color_range = intel_crtc_state->limited_color_range;
+		limited_color_range = crtc_state->limited_color_range;
 
-	if (intel_crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
-	    intel_crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) {
-		ilk_load_ycbcr_conversion_matrix(intel_crtc);
+	if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
+	    crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) {
+		ilk_load_ycbcr_conversion_matrix(crtc);
 		return;
-	} else if (crtc_state->ctm) {
-		struct drm_color_ctm *ctm = crtc_state->ctm->data;
+	} else if (crtc_state->base.ctm) {
+		struct drm_color_ctm *ctm = crtc_state->base.ctm->data;
 		const u64 *input;
 		u64 temp[9];
 
@@ -253,16 +253,15 @@ static void ilk_load_csc_matrix(struct drm_crtc_state *crtc_state)
 /*
  * Set up the pipe CSC unit on CherryView.
  */
-static void cherryview_load_csc_matrix(struct drm_crtc_state *state)
+static void cherryview_load_csc_matrix(struct intel_crtc_state *crtc_state)
 {
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_device *dev = crtc->dev;
+	struct drm_device *dev = crtc_state->base.crtc->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	int pipe = to_intel_crtc(crtc)->pipe;
+	int pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 	uint32_t mode;
 
-	if (state->ctm) {
-		struct drm_color_ctm *ctm = state->ctm->data;
+	if (crtc_state->base.ctm) {
+		struct drm_color_ctm *ctm = crtc_state->base.ctm->data;
 		uint16_t coeffs[9] = { 0, };
 		int i;
 
@@ -293,17 +292,17 @@ static void cherryview_load_csc_matrix(struct drm_crtc_state *state)
 		I915_WRITE(CGM_PIPE_CSC_COEFF8(pipe), coeffs[8]);
 	}
 
-	mode = (state->ctm ? CGM_PIPE_MODE_CSC : 0);
-	if (!crtc_state_is_legacy_gamma(state)) {
-		mode |= (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
-			(state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0);
+	mode = (crtc_state->base.ctm ? CGM_PIPE_MODE_CSC : 0);
+	if (!crtc_state_is_legacy_gamma(crtc_state)) {
+		mode |= (crtc_state->base.degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
+			(crtc_state->base.gamma_lut ? CGM_PIPE_MODE_GAMMA : 0);
 	}
 	I915_WRITE(CGM_PIPE_MODE(pipe), mode);
 }
 
-void intel_color_set_csc(struct drm_crtc_state *crtc_state)
+void intel_color_set_csc(struct intel_crtc_state *crtc_state)
 {
-	struct drm_device *dev = crtc_state->crtc->dev;
+	struct drm_device *dev = crtc_state->base.crtc->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
 	if (dev_priv->display.load_csc_matrix)
@@ -311,14 +310,12 @@ void intel_color_set_csc(struct drm_crtc_state *crtc_state)
 }
 
 /* Loads the legacy palette/gamma unit for the CRTC. */
-static void i9xx_load_luts_internal(struct drm_crtc *crtc,
-				    struct drm_property_blob *blob,
-				    struct intel_crtc_state *crtc_state)
+static void i9xx_load_luts_internal(struct intel_crtc_state *crtc_state,
+				    struct drm_property_blob *blob)
 {
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	enum pipe pipe = intel_crtc->pipe;
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
 	int i;
 
 	if (HAS_GMCH_DISPLAY(dev_priv)) {
@@ -353,53 +350,48 @@ static void i9xx_load_luts_internal(struct drm_crtc *crtc,
 	}
 }
 
-static void i9xx_load_luts(struct drm_crtc_state *crtc_state)
+static void i9xx_load_luts(struct intel_crtc_state *crtc_state)
 {
-	i9xx_load_luts_internal(crtc_state->crtc, crtc_state->gamma_lut,
-				to_intel_crtc_state(crtc_state));
+	i9xx_load_luts_internal(crtc_state, crtc_state->base.gamma_lut);
 }
 
 /* Loads the legacy palette/gamma unit for the CRTC on Haswell. */
-static void haswell_load_luts(struct drm_crtc_state *crtc_state)
+static void haswell_load_luts(struct intel_crtc_state *crtc_state)
 {
-	struct drm_crtc *crtc = crtc_state->crtc;
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_crtc_state *intel_crtc_state =
-		to_intel_crtc_state(crtc_state);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	bool reenable_ips = false;
 
 	/*
 	 * Workaround : Do not read or write the pipe palette/gamma data while
 	 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
 	 */
-	if (IS_HASWELL(dev_priv) && intel_crtc_state->ips_enabled &&
-	    (intel_crtc_state->gamma_mode == GAMMA_MODE_MODE_SPLIT)) {
-		hsw_disable_ips(intel_crtc_state);
+	if (IS_HASWELL(dev_priv) && crtc_state->ips_enabled &&
+	    (crtc_state->gamma_mode == GAMMA_MODE_MODE_SPLIT)) {
+		hsw_disable_ips(crtc_state);
 		reenable_ips = true;
 	}
 
-	intel_crtc_state->gamma_mode = GAMMA_MODE_MODE_8BIT;
-	I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
+	crtc_state->gamma_mode = GAMMA_MODE_MODE_8BIT;
+	I915_WRITE(GAMMA_MODE(crtc->pipe), GAMMA_MODE_MODE_8BIT);
 
 	i9xx_load_luts(crtc_state);
 
 	if (reenable_ips)
-		hsw_enable_ips(intel_crtc_state);
+		hsw_enable_ips(crtc_state);
 }
 
-static void bdw_load_degamma_lut(struct drm_crtc_state *state)
+static void bdw_load_degamma_lut(struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->crtc->dev);
-	enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+	enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 	uint32_t i, lut_size = INTEL_INFO(dev_priv)->color.degamma_lut_size;
 
 	I915_WRITE(PREC_PAL_INDEX(pipe),
 		   PAL_PREC_SPLIT_MODE | PAL_PREC_AUTO_INCREMENT);
 
-	if (state->degamma_lut) {
-		struct drm_color_lut *lut = state->degamma_lut->data;
+	if (crtc_state->base.degamma_lut) {
+		struct drm_color_lut *lut = crtc_state->base.degamma_lut->data;
 
 		for (i = 0; i < lut_size; i++) {
 			uint32_t word =
@@ -419,10 +411,10 @@ static void bdw_load_degamma_lut(struct drm_crtc_state *state)
 	}
 }
 
-static void bdw_load_gamma_lut(struct drm_crtc_state *state, u32 offset)
+static void bdw_load_gamma_lut(struct intel_crtc_state *crtc_state, u32 offset)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->crtc->dev);
-	enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+	enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 	uint32_t i, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size;
 
 	WARN_ON(offset & ~PAL_PREC_INDEX_VALUE_MASK);
@@ -432,8 +424,8 @@ static void bdw_load_gamma_lut(struct drm_crtc_state *state, u32 offset)
 		   PAL_PREC_AUTO_INCREMENT |
 		   offset);
 
-	if (state->gamma_lut) {
-		struct drm_color_lut *lut = state->gamma_lut->data;
+	if (crtc_state->base.gamma_lut) {
+		struct drm_color_lut *lut = crtc_state->base.gamma_lut->data;
 
 		for (i = 0; i < lut_size; i++) {
 			uint32_t word =
@@ -467,22 +459,21 @@ static void bdw_load_gamma_lut(struct drm_crtc_state *state, u32 offset)
 }
 
 /* Loads the palette/gamma unit for the CRTC on Broadwell+. */
-static void broadwell_load_luts(struct drm_crtc_state *state)
+static void broadwell_load_luts(struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->crtc->dev);
-	struct intel_crtc_state *intel_state = to_intel_crtc_state(state);
-	enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+	enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 
-	if (crtc_state_is_legacy_gamma(state)) {
-		haswell_load_luts(state);
+	if (crtc_state_is_legacy_gamma(crtc_state)) {
+		haswell_load_luts(crtc_state);
 		return;
 	}
 
-	bdw_load_degamma_lut(state);
-	bdw_load_gamma_lut(state,
+	bdw_load_degamma_lut(crtc_state);
+	bdw_load_gamma_lut(crtc_state,
 			   INTEL_INFO(dev_priv)->color.degamma_lut_size);
 
-	intel_state->gamma_mode = GAMMA_MODE_MODE_SPLIT;
+	crtc_state->gamma_mode = GAMMA_MODE_MODE_SPLIT;
 	I915_WRITE(GAMMA_MODE(pipe), GAMMA_MODE_MODE_SPLIT);
 	POSTING_READ(GAMMA_MODE(pipe));
 
@@ -493,10 +484,10 @@ static void broadwell_load_luts(struct drm_crtc_state *state)
 	I915_WRITE(PREC_PAL_INDEX(pipe), 0);
 }
 
-static void glk_load_degamma_lut(struct drm_crtc_state *state)
+static void glk_load_degamma_lut(struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(state->crtc->dev);
-	enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+	enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 	const uint32_t lut_size = 33;
 	uint32_t i;
 
@@ -523,49 +514,46 @@ static void glk_load_degamma_lut(struct drm_crtc_state *state)
 		I915_WRITE(PRE_CSC_GAMC_DATA(pipe), (1 << 16));
 }
 
-static void glk_load_luts(struct drm_crtc_state *state)
+static void glk_load_luts(struct intel_crtc_state *crtc_state)
 {
-	struct drm_crtc *crtc = state->crtc;
-	struct drm_device *dev = crtc->dev;
+	struct drm_device *dev = crtc_state->base.crtc->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_crtc_state *intel_state = to_intel_crtc_state(state);
-	enum pipe pipe = to_intel_crtc(crtc)->pipe;
+	enum pipe pipe = to_intel_crtc(crtc_state->base.crtc)->pipe;
 
-	glk_load_degamma_lut(state);
+	glk_load_degamma_lut(crtc_state);
 
-	if (crtc_state_is_legacy_gamma(state)) {
-		haswell_load_luts(state);
+	if (crtc_state_is_legacy_gamma(crtc_state)) {
+		haswell_load_luts(crtc_state);
 		return;
 	}
 
-	bdw_load_gamma_lut(state, 0);
+	bdw_load_gamma_lut(crtc_state, 0);
 
-	intel_state->gamma_mode = GAMMA_MODE_MODE_10BIT;
+	crtc_state->gamma_mode = GAMMA_MODE_MODE_10BIT;
 	I915_WRITE(GAMMA_MODE(pipe), GAMMA_MODE_MODE_10BIT);
 	POSTING_READ(GAMMA_MODE(pipe));
 }
 
 /* Loads the palette/gamma unit for the CRTC on CherryView. */
-static void cherryview_load_luts(struct drm_crtc_state *state)
+static void cherryview_load_luts(struct intel_crtc_state *crtc_state)
 {
-	struct drm_crtc *crtc = state->crtc;
+	struct drm_crtc *crtc = crtc_state->base.crtc;
 	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
 	enum pipe pipe = to_intel_crtc(crtc)->pipe;
 	struct drm_color_lut *lut;
 	uint32_t i, lut_size;
 	uint32_t word0, word1;
 
-	if (crtc_state_is_legacy_gamma(state)) {
+	if (crtc_state_is_legacy_gamma(crtc_state)) {
 		/* Turn off degamma/gamma on CGM block. */
 		I915_WRITE(CGM_PIPE_MODE(pipe),
-			   (state->ctm ? CGM_PIPE_MODE_CSC : 0));
-		i9xx_load_luts_internal(crtc, state->gamma_lut,
-					to_intel_crtc_state(state));
+			   (crtc_state->base.ctm ? CGM_PIPE_MODE_CSC : 0));
+		i9xx_load_luts_internal(crtc_state, crtc_state->base.gamma_lut);
 		return;
 	}
 
-	if (state->degamma_lut) {
-		lut = state->degamma_lut->data;
+	if (crtc_state->base.degamma_lut) {
+		lut = crtc_state->base.degamma_lut->data;
 		lut_size = INTEL_INFO(dev_priv)->color.degamma_lut_size;
 		for (i = 0; i < lut_size; i++) {
 			/* Write LUT in U0.14 format. */
@@ -579,8 +567,8 @@ static void cherryview_load_luts(struct drm_crtc_state *state)
 		}
 	}
 
-	if (state->gamma_lut) {
-		lut = state->gamma_lut->data;
+	if (crtc_state->base.gamma_lut) {
+		lut = crtc_state->base.gamma_lut->data;
 		lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size;
 		for (i = 0; i < lut_size; i++) {
 			/* Write LUT in U0.10 format. */
@@ -595,29 +583,28 @@ static void cherryview_load_luts(struct drm_crtc_state *state)
 	}
 
 	I915_WRITE(CGM_PIPE_MODE(pipe),
-		   (state->ctm ? CGM_PIPE_MODE_CSC : 0) |
-		   (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
-		   (state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0));
+		   (crtc_state->base.ctm ? CGM_PIPE_MODE_CSC : 0) |
+		   (crtc_state->base.degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
+		   (crtc_state->base.gamma_lut ? CGM_PIPE_MODE_GAMMA : 0));
 
 	/*
 	 * Also program a linear LUT in the legacy block (behind the
 	 * CGM block).
 	 */
-	i9xx_load_luts_internal(crtc, NULL, to_intel_crtc_state(state));
+	i9xx_load_luts_internal(crtc_state, NULL);
 }
 
-void intel_color_load_luts(struct drm_crtc_state *crtc_state)
+void intel_color_load_luts(struct intel_crtc_state *crtc_state)
 {
-	struct drm_device *dev = crtc_state->crtc->dev;
+	struct drm_device *dev = crtc_state->base.crtc->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
 	dev_priv->display.load_luts(crtc_state);
 }
 
-int intel_color_check(struct drm_crtc *crtc,
-		      struct drm_crtc_state *crtc_state)
+int intel_color_check(struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
 	size_t gamma_length, degamma_length;
 
 	degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size;
@@ -627,10 +614,10 @@ int intel_color_check(struct drm_crtc *crtc,
 	 * We allow both degamma & gamma luts at the right size or
 	 * NULL.
 	 */
-	if ((!crtc_state->degamma_lut ||
-	     drm_color_lut_size(crtc_state->degamma_lut) == degamma_length) &&
-	    (!crtc_state->gamma_lut ||
-	     drm_color_lut_size(crtc_state->gamma_lut) == gamma_length))
+	if ((!crtc_state->base.degamma_lut ||
+	     drm_color_lut_size(crtc_state->base.degamma_lut) == degamma_length) &&
+	    (!crtc_state->base.gamma_lut ||
+	     drm_color_lut_size(crtc_state->base.gamma_lut) == gamma_length))
 		return 0;
 
 	/*
@@ -643,11 +630,11 @@ int intel_color_check(struct drm_crtc *crtc,
 	return -EINVAL;
 }
 
-void intel_color_init(struct drm_crtc *crtc)
+void intel_color_init(struct intel_crtc *crtc)
 {
-	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
-	drm_mode_crtc_set_gamma_size(crtc, 256);
+	drm_mode_crtc_set_gamma_size(&crtc->base, 256);
 
 	if (IS_CHERRYVIEW(dev_priv)) {
 		dev_priv->display.load_csc_matrix = cherryview_load_csc_matrix;
@@ -669,7 +656,7 @@ void intel_color_init(struct drm_crtc *crtc)
 	/* Enable color management support when we have degamma & gamma LUTs. */
 	if (INTEL_INFO(dev_priv)->color.degamma_lut_size != 0 &&
 	    INTEL_INFO(dev_priv)->color.gamma_lut_size != 0)
-		drm_crtc_enable_color_mgmt(crtc,
+		drm_crtc_enable_color_mgmt(&crtc->base,
 					   INTEL_INFO(dev_priv)->color.degamma_lut_size,
 					   true,
 					   INTEL_INFO(dev_priv)->color.gamma_lut_size);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 943d6832b05d..13e5650b6f31 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5641,7 +5641,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
 	 * On ILK+ LUT must be loaded before the pipe is running but with
 	 * clocks enabled
 	 */
-	intel_color_load_luts(&pipe_config->base);
+	intel_color_load_luts(pipe_config);
 
 	if (dev_priv->display.initial_watermarks != NULL)
 		dev_priv->display.initial_watermarks(old_intel_state, pipe_config);
@@ -5752,7 +5752,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	haswell_set_pipemisc(pipe_config);
 
-	intel_color_set_csc(&pipe_config->base);
+	intel_color_set_csc(pipe_config);
 
 	intel_crtc->active = true;
 
@@ -5771,7 +5771,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 	 * On ILK+ LUT must be loaded before the pipe is running but with
 	 * clocks enabled
 	 */
-	intel_color_load_luts(&pipe_config->base);
+	intel_color_load_luts(pipe_config);
 
 	/*
 	 * Display WA #1153: enable hardware to bypass the alpha math
@@ -6117,7 +6117,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	i9xx_set_pipeconf(pipe_config);
 
-	intel_color_set_csc(&pipe_config->base);
+	intel_color_set_csc(pipe_config);
 
 	intel_crtc->active = true;
 
@@ -6137,7 +6137,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	i9xx_pfit_enable(pipe_config);
 
-	intel_color_load_luts(&pipe_config->base);
+	intel_color_load_luts(pipe_config);
 
 	dev_priv->display.initial_watermarks(old_intel_state,
 					     pipe_config);
@@ -6193,7 +6193,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	i9xx_pfit_enable(pipe_config);
 
-	intel_color_load_luts(&pipe_config->base);
+	intel_color_load_luts(pipe_config);
 
 	if (dev_priv->display.initial_watermarks != NULL)
 		dev_priv->display.initial_watermarks(old_intel_state,
@@ -10972,7 +10972,7 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
 	}
 
 	if (crtc_state->color_mgmt_changed) {
-		ret = intel_color_check(crtc, crtc_state);
+		ret = intel_color_check(pipe_config);
 		if (ret)
 			return ret;
 
@@ -13547,8 +13547,8 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
 	if (!modeset &&
 	    (intel_cstate->base.color_mgmt_changed ||
 	     intel_cstate->update_pipe)) {
-		intel_color_set_csc(&intel_cstate->base);
-		intel_color_load_luts(&intel_cstate->base);
+		intel_color_set_csc(intel_cstate);
+		intel_color_load_luts(intel_cstate);
 	}
 
 	/* Perform vblank evasion around commit operation */
@@ -14121,7 +14121,7 @@ static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 
 	drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
 
-	intel_color_init(&intel_crtc->base);
+	intel_color_init(intel_crtc);
 
 	WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe);
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a8177ccf1d4f..d08f08f607dd 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2327,10 +2327,10 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 					struct intel_plane_state *intel_state);
 
 /* intel_color.c */
-void intel_color_init(struct drm_crtc *crtc);
-int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
-void intel_color_set_csc(struct drm_crtc_state *crtc_state);
-void intel_color_load_luts(struct drm_crtc_state *crtc_state);
+void intel_color_init(struct intel_crtc *crtc);
+int intel_color_check(struct intel_crtc_state *crtc_state);
+void intel_color_set_csc(struct intel_crtc_state *crtc_state);
+void intel_color_load_luts(struct intel_crtc_state *crtc_state);
 
 /* intel_lspcon.c */
 bool lspcon_init(struct intel_digital_port *intel_dig_port);

From ab2cb2cb1a775bffa678d4b5d9695f0622157626 Mon Sep 17 00:00:00 2001
From: Clint Taylor <clinton.a.taylor@intel.com>
Date: Mon, 10 Dec 2018 14:52:54 -0800
Subject: [PATCH 034/118] drm/i915/hdmi: SCDC Scrambling enable without CTS
 mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Setting the SCDC scrambling CTS mode causes HDMI Link Layer protocol tests
HF1-12 and HF1-13 to fail.

V2: Removed "Source Shall" entries to a new patch
V3: Rebase to drm-tip
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107895
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107896
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1544482374-26507-1-git-send-email-clinton.a.taylor@intel.com
---
 drivers/gpu/drm/i915/intel_ddi.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index f3e1d6a0b7dd..92c0bf70fe09 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1880,7 +1880,7 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
 			temp |= TRANS_DDI_MODE_SELECT_DVI;
 
 		if (crtc_state->hdmi_scrambling)
-			temp |= TRANS_DDI_HDMI_SCRAMBLING_MASK;
+			temp |= TRANS_DDI_HDMI_SCRAMBLING;
 		if (crtc_state->hdmi_high_tmds_clock_ratio)
 			temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE;
 	} else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
@@ -3793,8 +3793,7 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 		if (intel_dig_port->infoframe_enabled(encoder, pipe_config))
 			pipe_config->has_infoframe = true;
 
-		if ((temp & TRANS_DDI_HDMI_SCRAMBLING_MASK) ==
-			TRANS_DDI_HDMI_SCRAMBLING_MASK)
+		if (temp & TRANS_DDI_HDMI_SCRAMBLING)
 			pipe_config->hdmi_scrambling = true;
 		if (temp & TRANS_DDI_HIGH_TMDS_CHAR_RATE)
 			pipe_config->hdmi_high_tmds_clock_ratio = true;

From 9343bb247bf892f7d8731da107dc9d317834bbef Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Tue, 11 Dec 2018 09:31:06 -0800
Subject: [PATCH 035/118] drm/i915: Don't use DDB allocation when choosing gen9
 watermark method
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The bspec gives an if/else chain for choosing whether to use "method 1"
or "method 2" for calculating the watermark "Selected Result Blocks"
value for a plane.  One of the branches of the if chain is:

        "Else If ('plane buffer allocation' is known and (plane buffer
        allocation / plane blocks per line) >=1)"

Since our driver currently calculates DDB allocations first and the
actual watermark values second, the plane buffer allocation is known at
this point in our code and we include this test in our driver's logic.
However we plan to soon move to a "watermarks first, ddb allocation
second" sequence where we won't know the DDB allocation at this point.
Let's drop this arm of the if/else statement (effectively considering
the DDB allocation unknown) as an independent patch so that any
regressions can be more accurately bisected to either the different
watermark value (in this patch) or the new DDB allocation (in the next
patch).

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181211173107.11068-1-matthew.d.roper@intel.com
---
 drivers/gpu/drm/i915/intel_pm.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2bba5315b764..bf970cf7b8a5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4761,13 +4761,6 @@ static int skl_compute_plane_wm(const struct intel_crtc_state *cstate,
 		     wp->dbuf_block_size < 1) &&
 		     (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) {
 			selected_result = method2;
-		} else if (ddb_allocation >=
-			 fixed16_to_u32_round_up(wp->plane_blocks_per_line)) {
-			if (IS_GEN9(dev_priv) &&
-			    !IS_GEMINILAKE(dev_priv))
-				selected_result = min_fixed16(method1, method2);
-			else
-				selected_result = method2;
 		} else if (latency >= wp->linetime_us) {
 			if (IS_GEN9(dev_priv) &&
 			    !IS_GEMINILAKE(dev_priv))

From d8e874980241dd1cee68e85c39d8e5372bbad494 Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Tue, 11 Dec 2018 09:31:07 -0800
Subject: [PATCH 036/118] drm/i915: Switch to level-based DDB allocation
 algorithm (v5)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The DDB allocation algorithm currently used by the driver grants each
plane a very small minimum allocation of DDB blocks and then divies up
all of the remaining blocks based on the percentage of the total data
rate that the plane makes up.  It turns out that this proportional
allocation approach is overly-generous with the larger planes and can
leave very small planes wthout a big enough allocation to even hit their
level 0 watermark requirements (especially on APL, which has a smaller
DDB in general than other gen9 platforms).  Or there can be situations
where the smallest planes hit a lower watermark level than they should
have been able to hit with a more equitable division of DDB blocks, thus
limiting the overall system sleep state that can be achieved.

The bspec now describes an alternate algorithm that can be used to
overcome these types of issues.  With the new algorithm, we calculate
all plane watermark values for all wm levels first, then go back and
partition a pipe's DDB space second.  The DDB allocation will calculate
what the highest watermark level that can be achieved on *all* active
planes, and then grant the blocks necessary to hit that level to each
plane.  Any remaining blocks are then divided up proportionally
according to data rate, similar to the old algorithm.

There was a previous attempt to implement this algorithm a couple years
ago in bb9d85f6e9d ("drm/i915/skl: New ddb allocation algorithm"), but
some regressions were reported, the patch was reverted, and nobody
ever got around to figuring out exactly where the bug was in that
version.  Our watermark code has evolved significantly in the meantime,
but we're still getting bug reports caused by the unfair proportional
algorithm, so let's give this another shot.

v2:
 - Make sure cursor allocation stays constant and fixed at the end of
   the pipe allocation.
 - Fix some watermark level iterators that weren't handling the max
   level.

v3:
 - Ensure we don't leave any DDB blocks unused by using DIV_ROUND_UP+min
   to calculate the extra blocks for each plane.  (Ville)
 - Replace a while() loop with a for() loop to be more consistent with
   surrounding code.  (Ville)
 - Clean unattainable watermark levels with memset rather than directly
   clearing the member fields.  Also do the same for the transition
   watermark values if they can't be achieved.  (Ville)
 - Drop min_disp_buf_needed calculations in skl_compute_plane_wm() since
   the results are no longer needed or used.  (Ville)
 - Drop skl_latency[0] != 0 sanity check; both watermark methods already
   account for an invalid 0 latency by returning FP_16_16_MAX.  (Ville)

v4:
 - Break DDB allocation loop when total_data_rate=0 rather than
   alloc_size=0.  If total_data_rate has dropped to 0, all remaining
   planes are disabled, which isn't true for alloc_size (we might just
   have not had any remaining blocks to hand out).  Plus
   total_data_rate=0 is the case we need to avoid to a prevent a
   div-by-0.  (Ville)
 - s/DIV_ROUND_UP/DIV64_U64_ROUND_UP/ to prevent 32-bit breakage (Ville)

v5:
 - Don't forget to move 'start' pointer forward for UV surface when
   setting plane DDB boundaries.  (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105458
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181211173107.11068-2-matthew.d.roper@intel.com
---
 drivers/gpu/drm/i915/intel_pm.c | 397 ++++++++++++--------------------
 1 file changed, 147 insertions(+), 250 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index bf970cf7b8a5..6d074f2e69d3 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4301,102 +4301,6 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *intel_cstate,
 	return total_data_rate;
 }
 
-static uint16_t
-skl_ddb_min_alloc(const struct intel_plane_state *plane_state, const int plane)
-{
-	struct drm_framebuffer *fb = plane_state->base.fb;
-	uint32_t src_w, src_h;
-	uint32_t min_scanlines = 8;
-	uint8_t plane_bpp;
-
-	if (WARN_ON(!fb))
-		return 0;
-
-	/* For packed formats, and uv-plane, return 0 */
-	if (plane == 1 && fb->format->format != DRM_FORMAT_NV12)
-		return 0;
-
-	/* For Non Y-tile return 8-blocks */
-	if (fb->modifier != I915_FORMAT_MOD_Y_TILED &&
-	    fb->modifier != I915_FORMAT_MOD_Yf_TILED &&
-	    fb->modifier != I915_FORMAT_MOD_Y_TILED_CCS &&
-	    fb->modifier != I915_FORMAT_MOD_Yf_TILED_CCS)
-		return 8;
-
-	/*
-	 * Src coordinates are already rotated by 270 degrees for
-	 * the 90/270 degree plane rotation cases (to match the
-	 * GTT mapping), hence no need to account for rotation here.
-	 */
-	src_w = drm_rect_width(&plane_state->base.src) >> 16;
-	src_h = drm_rect_height(&plane_state->base.src) >> 16;
-
-	/* Halve UV plane width and height for NV12 */
-	if (plane == 1) {
-		src_w /= 2;
-		src_h /= 2;
-	}
-
-	plane_bpp = fb->format->cpp[plane];
-
-	if (drm_rotation_90_or_270(plane_state->base.rotation)) {
-		switch (plane_bpp) {
-		case 1:
-			min_scanlines = 32;
-			break;
-		case 2:
-			min_scanlines = 16;
-			break;
-		case 4:
-			min_scanlines = 8;
-			break;
-		case 8:
-			min_scanlines = 4;
-			break;
-		default:
-			WARN(1, "Unsupported pixel depth %u for rotation",
-			     plane_bpp);
-			min_scanlines = 32;
-		}
-	}
-
-	return DIV_ROUND_UP((4 * src_w * plane_bpp), 512) * min_scanlines/4 + 3;
-}
-
-static void
-skl_ddb_calc_min(const struct intel_crtc_state *cstate, int num_active,
-		 uint16_t *minimum, uint16_t *uv_minimum)
-{
-	const struct drm_plane_state *pstate;
-	struct drm_plane *plane;
-
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, &cstate->base) {
-		enum plane_id plane_id = to_intel_plane(plane)->id;
-		struct intel_plane_state *plane_state = to_intel_plane_state(pstate);
-
-		if (plane_id == PLANE_CURSOR)
-			continue;
-
-		/* slave plane must be invisible and calculated from master */
-		if (!pstate->visible || WARN_ON(plane_state->slave))
-			continue;
-
-		if (!plane_state->linked_plane) {
-			minimum[plane_id] = skl_ddb_min_alloc(plane_state, 0);
-			uv_minimum[plane_id] =
-				skl_ddb_min_alloc(plane_state, 1);
-		} else {
-			enum plane_id y_plane_id =
-				plane_state->linked_plane->id;
-
-			minimum[y_plane_id] = skl_ddb_min_alloc(plane_state, 0);
-			minimum[plane_id] = skl_ddb_min_alloc(plane_state, 1);
-		}
-	}
-
-	minimum[PLANE_CURSOR] = skl_cursor_allocation(num_active);
-}
-
 static int
 skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 		      struct skl_ddb_allocation *ddb /* out */)
@@ -4406,15 +4310,17 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 	struct drm_i915_private *dev_priv = to_i915(crtc->dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct skl_ddb_entry *alloc = &cstate->wm.skl.ddb;
-	uint16_t alloc_size, start;
-	uint16_t minimum[I915_MAX_PLANES] = {};
-	uint16_t uv_minimum[I915_MAX_PLANES] = {};
+	struct skl_plane_wm *wm;
+	uint16_t alloc_size, start = 0;
+	uint16_t total[I915_MAX_PLANES] = {};
+	uint16_t uv_total[I915_MAX_PLANES] = {};
 	u64 total_data_rate;
 	enum plane_id plane_id;
 	int num_active;
 	u64 plane_data_rate[I915_MAX_PLANES] = {};
 	u64 uv_plane_data_rate[I915_MAX_PLANES] = {};
-	uint16_t total_min_blocks = 0;
+	uint16_t blocks = 0;
+	int level;
 
 	/* Clear the partitioning for disabled planes. */
 	memset(cstate->wm.skl.plane_ddb_y, 0, sizeof(cstate->wm.skl.plane_ddb_y));
@@ -4444,81 +4350,134 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 	if (alloc_size == 0)
 		return 0;
 
-	skl_ddb_calc_min(cstate, num_active, minimum, uv_minimum);
-
-	/*
-	 * 1. Allocate the mininum required blocks for each active plane
-	 * and allocate the cursor, it doesn't require extra allocation
-	 * proportional to the data rate.
-	 */
-
-	for_each_plane_id_on_crtc(intel_crtc, plane_id) {
-		total_min_blocks += minimum[plane_id];
-		total_min_blocks += uv_minimum[plane_id];
-	}
-
-	if (total_min_blocks > alloc_size) {
-		DRM_DEBUG_KMS("Requested display configuration exceeds system DDB limitations");
-		DRM_DEBUG_KMS("minimum required %d/%d\n", total_min_blocks,
-							alloc_size);
-		return -EINVAL;
-	}
-
-	alloc_size -= total_min_blocks;
-	cstate->wm.skl.plane_ddb_y[PLANE_CURSOR].start = alloc->end - minimum[PLANE_CURSOR];
+	/* Allocate fixed number of blocks for cursor. */
+	total[PLANE_CURSOR] = skl_cursor_allocation(num_active);
+	alloc_size -= total[PLANE_CURSOR];
+	cstate->wm.skl.plane_ddb_y[PLANE_CURSOR].start =
+		alloc->end - total[PLANE_CURSOR];
 	cstate->wm.skl.plane_ddb_y[PLANE_CURSOR].end = alloc->end;
 
-	/*
-	 * 2. Distribute the remaining space in proportion to the amount of
-	 * data each plane needs to fetch from memory.
-	 *
-	 * FIXME: we may not allocate every single block here.
-	 */
 	if (total_data_rate == 0)
 		return 0;
 
-	start = alloc->start;
+	/*
+	 * Find the highest watermark level for which we can satisfy the block
+	 * requirement of active planes.
+	 */
+	for (level = ilk_wm_max_level(dev_priv); level >= 0; level--) {
+		for_each_plane_id_on_crtc(intel_crtc, plane_id) {
+			if (plane_id == PLANE_CURSOR)
+				continue;
+
+			wm = &cstate->wm.skl.optimal.planes[plane_id];
+			blocks += wm->wm[level].plane_res_b;
+			blocks += wm->uv_wm[level].plane_res_b;
+		}
+
+		if (blocks < alloc_size) {
+			alloc_size -= blocks;
+			break;
+		}
+	}
+
+	if (level < 0) {
+		DRM_DEBUG_KMS("Requested display configuration exceeds system DDB limitations");
+		DRM_DEBUG_KMS("minimum required %d/%d\n", blocks,
+			      alloc_size);
+		return -EINVAL;
+	}
+
+	/*
+	 * Grant each plane the blocks it requires at the highest achievable
+	 * watermark level, plus an extra share of the leftover blocks
+	 * proportional to its relative data rate.
+	 */
 	for_each_plane_id_on_crtc(intel_crtc, plane_id) {
-		u64 data_rate, uv_data_rate;
-		uint16_t plane_blocks, uv_plane_blocks;
+		u64 rate;
+		u16 extra;
 
 		if (plane_id == PLANE_CURSOR)
 			continue;
 
-		data_rate = plane_data_rate[plane_id];
-
 		/*
-		 * allocation for (packed formats) or (uv-plane part of planar format):
-		 * promote the expression to 64 bits to avoid overflowing, the
-		 * result is < available as data_rate / total_data_rate < 1
+		 * We've accounted for all active planes; remaining planes are
+		 * all disabled.
 		 */
-		plane_blocks = minimum[plane_id];
-		plane_blocks += div64_u64(alloc_size * data_rate, total_data_rate);
+		if (total_data_rate == 0)
+			break;
 
-		/* Leave disabled planes at (0,0) */
-		if (data_rate) {
-			cstate->wm.skl.plane_ddb_y[plane_id].start = start;
-			cstate->wm.skl.plane_ddb_y[plane_id].end = start + plane_blocks;
-		}
+		wm = &cstate->wm.skl.optimal.planes[plane_id];
 
-		start += plane_blocks;
+		rate = plane_data_rate[plane_id];
+		extra = min_t(u16, alloc_size,
+			      DIV64_U64_ROUND_UP(alloc_size * rate,
+						 total_data_rate));
+		total[plane_id] = wm->wm[level].plane_res_b + extra;
+		alloc_size -= extra;
+		total_data_rate -= rate;
 
-		/* Allocate DDB for UV plane for planar format/NV12 */
-		uv_data_rate = uv_plane_data_rate[plane_id];
+		if (total_data_rate == 0)
+			break;
 
-		uv_plane_blocks = uv_minimum[plane_id];
-		uv_plane_blocks += div64_u64(alloc_size * uv_data_rate, total_data_rate);
+		rate = uv_plane_data_rate[plane_id];
+		extra = min_t(u16, alloc_size,
+			      DIV64_U64_ROUND_UP(alloc_size * rate,
+						 total_data_rate));
+		uv_total[plane_id] = wm->uv_wm[level].plane_res_b + extra;
+		alloc_size -= extra;
+		total_data_rate -= rate;
+	}
+	WARN_ON(alloc_size != 0 || total_data_rate != 0);
+
+	/* Set the actual DDB start/end points for each plane */
+	start = alloc->start;
+	for_each_plane_id_on_crtc(intel_crtc, plane_id) {
+		struct skl_ddb_entry *plane_alloc, *uv_plane_alloc;
+
+		if (plane_id == PLANE_CURSOR)
+			continue;
+
+		plane_alloc = &cstate->wm.skl.plane_ddb_y[plane_id];
+		uv_plane_alloc = &cstate->wm.skl.plane_ddb_uv[plane_id];
 
 		/* Gen11+ uses a separate plane for UV watermarks */
-		WARN_ON(INTEL_GEN(dev_priv) >= 11 && uv_plane_blocks);
+		WARN_ON(INTEL_GEN(dev_priv) >= 11 && uv_total[plane_id]);
 
-		if (uv_data_rate) {
-			cstate->wm.skl.plane_ddb_uv[plane_id].start = start;
-			cstate->wm.skl.plane_ddb_uv[plane_id].end =
-				start + uv_plane_blocks;
+		/* Leave disabled planes at (0,0) */
+		if (total[plane_id]) {
+			plane_alloc->start = start;
+			start += total[plane_id];
+			plane_alloc->end = start;
 		}
 
-		start += uv_plane_blocks;
+		if (uv_total[plane_id]) {
+			uv_plane_alloc->start = start;
+			start += uv_total[plane_id];
+			uv_plane_alloc->end = start;
+		}
+	}
+
+	/*
+	 * When we calculated watermark values we didn't know how high
+	 * of a level we'd actually be able to hit, so we just marked
+	 * all levels as "enabled."  Go back now and disable the ones
+	 * that aren't actually possible.
+	 */
+	for (level++; level <= ilk_wm_max_level(dev_priv); level++) {
+		for_each_plane_id_on_crtc(intel_crtc, plane_id) {
+			wm = &cstate->wm.skl.optimal.planes[plane_id];
+			memset(&wm->wm[level], 0, sizeof(wm->wm[level]));
+		}
+	}
+
+	/*
+	 * Go back and disable the transition watermark if it turns out we
+	 * don't have enough DDB blocks for it.
+	 */
+	for_each_plane_id_on_crtc(intel_crtc, plane_id) {
+		wm = &cstate->wm.skl.optimal.planes[plane_id];
+		if (wm->trans_wm.plane_res_b > total[plane_id])
+			memset(&wm->trans_wm, 0, sizeof(wm->trans_wm));
 	}
 
 	return 0;
@@ -4715,17 +4674,15 @@ skl_compute_plane_wm_params(const struct intel_crtc_state *cstate,
 	return 0;
 }
 
-static int skl_compute_plane_wm(const struct intel_crtc_state *cstate,
-				const struct intel_plane_state *intel_pstate,
-				uint16_t ddb_allocation,
-				int level,
-				const struct skl_wm_params *wp,
-				const struct skl_wm_level *result_prev,
-				struct skl_wm_level *result /* out */)
+static void skl_compute_plane_wm(const struct intel_crtc_state *cstate,
+				 const struct intel_plane_state *intel_pstate,
+				 int level,
+				 const struct skl_wm_params *wp,
+				 const struct skl_wm_level *result_prev,
+				 struct skl_wm_level *result /* out */)
 {
 	struct drm_i915_private *dev_priv =
 		to_i915(intel_pstate->base.plane->dev);
-	const struct drm_plane_state *pstate = &intel_pstate->base;
 	uint32_t latency = dev_priv->wm.skl_latency[level];
 	uint_fixed_16_16_t method1, method2;
 	uint_fixed_16_16_t selected_result;
@@ -4733,10 +4690,6 @@ static int skl_compute_plane_wm(const struct intel_crtc_state *cstate,
 	struct intel_atomic_state *state =
 		to_intel_atomic_state(cstate->base.state);
 	bool apply_memory_bw_wa = skl_needs_memory_bw_wa(state);
-	uint32_t min_disp_buf_needed;
-
-	if (latency == 0)
-		return level == 0 ? -EINVAL : 0;
 
 	/* Display WA #1141: kbl,cfl */
 	if ((IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv) ||
@@ -4800,61 +4753,24 @@ static int skl_compute_plane_wm(const struct intel_crtc_state *cstate,
 			res_blocks = result_prev->plane_res_b;
 	}
 
-	if (INTEL_GEN(dev_priv) >= 11) {
-		if (wp->y_tiled) {
-			uint32_t extra_lines;
-			uint_fixed_16_16_t fp_min_disp_buf_needed;
-
-			if (res_lines % wp->y_min_scanlines == 0)
-				extra_lines = wp->y_min_scanlines;
-			else
-				extra_lines = wp->y_min_scanlines * 2 -
-					      res_lines % wp->y_min_scanlines;
-
-			fp_min_disp_buf_needed = mul_u32_fixed16(res_lines +
-						extra_lines,
-						wp->plane_blocks_per_line);
-			min_disp_buf_needed = fixed16_to_u32_round_up(
-						fp_min_disp_buf_needed);
-		} else {
-			min_disp_buf_needed = DIV_ROUND_UP(res_blocks * 11, 10);
-		}
-	} else {
-		min_disp_buf_needed = res_blocks;
-	}
-
-	if ((level > 0 && res_lines > 31) ||
-	    res_blocks >= ddb_allocation ||
-	    min_disp_buf_needed >= ddb_allocation) {
-		/*
-		 * If there are no valid level 0 watermarks, then we can't
-		 * support this display configuration.
-		 */
-		if (level) {
-			return 0;
-		} else {
-			struct drm_plane *plane = pstate->plane;
-
-			DRM_DEBUG_KMS("Requested display configuration exceeds system watermark limitations\n");
-			DRM_DEBUG_KMS("[PLANE:%d:%s] blocks required = %u/%u, lines required = %u/31\n",
-				      plane->base.id, plane->name,
-				      res_blocks, ddb_allocation, res_lines);
-			return -EINVAL;
-		}
-	}
-
 	/* The number of lines are ignored for the level 0 watermark. */
+	if (level > 0 && res_lines > 31)
+		return;
+
+	/*
+	 * If res_lines is valid, assume we can use this watermark level
+	 * for now.  We'll come back and disable it after we calculate the
+	 * DDB allocation if it turns out we don't actually have enough
+	 * blocks to satisfy it.
+	 */
 	result->plane_res_b = res_blocks;
 	result->plane_res_l = res_lines;
 	result->plane_en = true;
-
-	return 0;
 }
 
-static int
+static void
 skl_compute_wm_levels(const struct intel_crtc_state *cstate,
 		      const struct intel_plane_state *intel_pstate,
-		      uint16_t ddb_blocks,
 		      const struct skl_wm_params *wm_params,
 		      struct skl_wm_level *levels)
 {
@@ -4862,25 +4778,15 @@ skl_compute_wm_levels(const struct intel_crtc_state *cstate,
 		to_i915(intel_pstate->base.plane->dev);
 	int level, max_level = ilk_wm_max_level(dev_priv);
 	struct skl_wm_level *result_prev = &levels[0];
-	int ret;
 
 	for (level = 0; level <= max_level; level++) {
 		struct skl_wm_level *result = &levels[level];
 
-		ret = skl_compute_plane_wm(cstate,
-					   intel_pstate,
-					   ddb_blocks,
-					   level,
-					   wm_params,
-					   result_prev,
-					   result);
-		if (ret)
-			return ret;
+		skl_compute_plane_wm(cstate, intel_pstate, level, wm_params,
+				     result_prev, result);
 
 		result_prev = result;
 	}
-
-	return 0;
 }
 
 static uint32_t
@@ -4908,8 +4814,7 @@ skl_compute_linetime_wm(const struct intel_crtc_state *cstate)
 
 static void skl_compute_transition_wm(const struct intel_crtc_state *cstate,
 				      const struct skl_wm_params *wp,
-				      struct skl_plane_wm *wm,
-				      uint16_t ddb_allocation)
+				      struct skl_plane_wm *wm)
 {
 	struct drm_device *dev = cstate->base.crtc->dev;
 	const struct drm_i915_private *dev_priv = to_i915(dev);
@@ -4957,12 +4862,13 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *cstate,
 
 	}
 
-	res_blocks += 1;
-
-	if (res_blocks < ddb_allocation) {
-		wm->trans_wm.plane_res_b = res_blocks;
-		wm->trans_wm.plane_en = true;
-	}
+	/*
+	 * Just assume we can enable the transition watermark.  After
+	 * computing the DDB we'll come back and disable it if that
+	 * assumption turns out to be false.
+	 */
+	wm->trans_wm.plane_res_b = res_blocks + 1;
+	wm->trans_wm.plane_en = true;
 }
 
 static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
@@ -4970,7 +4876,6 @@ static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
 				     enum plane_id plane_id, int color_plane)
 {
 	struct skl_plane_wm *wm = &crtc_state->wm.skl.optimal.planes[plane_id];
-	u16 ddb_blocks = skl_ddb_entry_size(&crtc_state->wm.skl.plane_ddb_y[plane_id]);
 	struct skl_wm_params wm_params;
 	int ret;
 
@@ -4979,12 +4884,8 @@ static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state,
 	if (ret)
 		return ret;
 
-	ret = skl_compute_wm_levels(crtc_state, plane_state,
-				    ddb_blocks, &wm_params, wm->wm);
-	if (ret)
-		return ret;
-
-	skl_compute_transition_wm(crtc_state, &wm_params, wm, ddb_blocks);
+	skl_compute_wm_levels(crtc_state, plane_state, &wm_params, wm->wm);
+	skl_compute_transition_wm(crtc_state, &wm_params, wm);
 
 	return 0;
 }
@@ -4994,7 +4895,6 @@ static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state,
 				 enum plane_id plane_id)
 {
 	struct skl_plane_wm *wm = &crtc_state->wm.skl.optimal.planes[plane_id];
-	u16 ddb_blocks = skl_ddb_entry_size(&crtc_state->wm.skl.plane_ddb_uv[plane_id]);
 	struct skl_wm_params wm_params;
 	int ret;
 
@@ -5006,10 +4906,7 @@ static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state,
 	if (ret)
 		return ret;
 
-	ret = skl_compute_wm_levels(crtc_state, plane_state,
-				    ddb_blocks, &wm_params, wm->uv_wm);
-	if (ret)
-		return ret;
+	skl_compute_wm_levels(crtc_state, plane_state, &wm_params, wm->uv_wm);
 
 	return 0;
 }
@@ -5521,13 +5418,9 @@ skl_compute_wm(struct intel_atomic_state *state)
 	if (ret || !changed)
 		return ret;
 
-	ret = skl_compute_ddb(state);
-	if (ret)
-		return ret;
-
 	/*
 	 * Calculate WM's for all pipes that are part of this transaction.
-	 * Note that the DDB allocation above may have added more CRTC's that
+	 * Note that skl_ddb_add_affected_pipes may have added more CRTC's that
 	 * weren't otherwise being modified (and set bits in dirty_pipes) if
 	 * pipe allocations had to change.
 	 */
@@ -5549,6 +5442,10 @@ skl_compute_wm(struct intel_atomic_state *state)
 			results->dirty_pipes |= drm_crtc_mask(&crtc->base);
 	}
 
+	ret = skl_compute_ddb(state);
+	if (ret)
+		return ret;
+
 	skl_print_wm_changes(state);
 
 	return 0;

From bea68f4a5ff286a0febcb673f4c774f717d723a1 Mon Sep 17 00:00:00 2001
From: Bob Paauwe <bob.j.paauwe@intel.com>
Date: Tue, 11 Dec 2018 11:25:45 -0800
Subject: [PATCH 037/118] drm/i915: DFSM pipe disable is valid from gen9
 onwards (v2)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

It's not just GEN9 platforms that allow for pipes to be disabled via
the DFSM register, but all later platforms as well.

v2: drop pointless parentheses (Ville)

Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181211192545.140081-1-bob.j.paauwe@intel.com
---
 drivers/gpu/drm/i915/intel_device_info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 1e56319334f3..bd5c4d62c635 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -811,7 +811,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 			DRM_INFO("PipeC fused off\n");
 			info->num_pipes -= 1;
 		}
-	} else if (HAS_DISPLAY(dev_priv) && IS_GEN9(dev_priv)) {
+	} else if (HAS_DISPLAY(dev_priv) && INTEL_GEN(dev_priv) >= 9) {
 		u32 dfsm = I915_READ(SKL_DFSM);
 		u8 disabled_mask = 0;
 		bool invalid;

From 25db2eaf1097ff6b9169d288e9532072069adb7c Mon Sep 17 00:00:00 2001
From: Matt Roper <matthew.d.roper@intel.com>
Date: Wed, 12 Dec 2018 11:17:20 -0800
Subject: [PATCH 038/118] drm/i915: Don't forget to reset blocks when testing
 lower wm levels
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

During DDB allocation, we try to distribute enough blocks for each plane
to hit the highest watermark level; if that fails, we retry each lower
level (which should require fewer blocks) until we find one that's
possible (or until the whole commit is rejected as impossible).  We need
to reset our running block count when trying each lower level, otherwise
all lower levels will fail as well.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: d8e8749802 ("drm/i915: Switch to level-based DDB allocation algorithm (v5)")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212191720.3706-1-matthew.d.roper@intel.com
---
 drivers/gpu/drm/i915/intel_pm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6d074f2e69d3..a6c7c11d2c0e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4365,6 +4365,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 	 * requirement of active planes.
 	 */
 	for (level = ilk_wm_max_level(dev_priv); level >= 0; level--) {
+		blocks = 0;
 		for_each_plane_id_on_crtc(intel_crtc, plane_id) {
 			if (plane_id == PLANE_CURSOR)
 				continue;

From 006900087727f675e9367eb3c3e054912ddbffdd Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Wed, 12 Dec 2018 10:10:42 -0800
Subject: [PATCH 039/118] drm/i915: Rename IS_GEN to IS_GEN_RANGE

RANGE makes it longer, but clearer. We are also going to add a macro to
check an individual gen, so add the _RANGE prefix here.

Diff generated with:

sed 's/IS_GEN(/IS_GEN_RANGE(/g' drivers/gpu/drm/i915/{*/,}*.{c,h} -i

v2: use IS_GEN rather than GT_GEN

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212181044.15886-1-lucas.demarchi@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h         |  2 +-
 drivers/gpu/drm/i915/i915_perf.c        |  4 ++--
 drivers/gpu/drm/i915/intel_bios.c       |  2 +-
 drivers/gpu/drm/i915/intel_engine_cs.c  |  2 +-
 drivers/gpu/drm/i915/intel_fbc.c        |  2 +-
 drivers/gpu/drm/i915/intel_hangcheck.c  |  2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c |  8 ++++----
 drivers/gpu/drm/i915/intel_uncore.c     | 12 ++++++------
 8 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e70707e79386..031738d48aad 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2211,7 +2211,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 	GENMASK((e) - 1, (s) - 1))
 
 /* Returns true if Gen is in inclusive range [Start, End] */
-#define IS_GEN(dev_priv, s, e) \
+#define IS_GEN_RANGE(dev_priv, s, e) \
 	(!!((dev_priv)->info.gen_mask & INTEL_GEN_MASK((s), (e))))
 
 /*
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 4529edfdcfc8..ad0095be435d 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1796,7 +1796,7 @@ static int gen8_enable_metric_set(struct i915_perf_stream *stream)
 	 * be read back from automatically triggered reports, as part of the
 	 * RPT_ID field.
 	 */
-	if (IS_GEN(dev_priv, 9, 11)) {
+	if (IS_GEN_RANGE(dev_priv, 9, 11)) {
 		I915_WRITE(GEN8_OA_DEBUG,
 			   _MASKED_BIT_ENABLE(GEN9_OA_DEBUG_DISABLE_CLK_RATIO_REPORTS |
 					      GEN9_OA_DEBUG_INCLUDE_CLK_RATIO));
@@ -3442,7 +3442,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 
 				dev_priv->perf.oa.gen8_valid_ctx_bit = (1<<16);
 			}
-		} else if (IS_GEN(dev_priv, 10, 11)) {
+		} else if (IS_GEN_RANGE(dev_priv, 10, 11)) {
 			dev_priv->perf.oa.ops.is_valid_b_counter_reg =
 				gen7_is_valid_b_counter_addr;
 			dev_priv->perf.oa.ops.is_valid_mux_reg =
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 6d3e0260d49c..7b7e7abfa259 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -453,7 +453,7 @@ parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, u8 bdb_version)
 	 * Only parse SDVO mappings on gens that could have SDVO. This isn't
 	 * accurate and doesn't have to be, as long as it's not too strict.
 	 */
-	if (!IS_GEN(dev_priv, 3, 7)) {
+	if (!IS_GEN_RANGE(dev_priv, 3, 7)) {
 		DRM_DEBUG_KMS("Skipping SDVO device mapping\n");
 		return;
 	}
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index af2873403009..fe5e87b6e1af 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1248,7 +1248,7 @@ static void intel_engine_print_registers(const struct intel_engine_cs *engine,
 		&engine->execlists;
 	u64 addr;
 
-	if (engine->id == RCS && IS_GEN(dev_priv, 4, 7))
+	if (engine->id == RCS && IS_GEN_RANGE(dev_priv, 4, 7))
 		drm_printf(m, "\tCCID: 0x%08x\n", I915_READ(CCID));
 	drm_printf(m, "\tRING_START: 0x%08x\n",
 		   I915_READ(RING_START(engine->mmio_base)));
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 78dbacdeaece..b57e31fc0f1e 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -787,7 +787,7 @@ static bool intel_fbc_can_activate(struct intel_crtc *crtc)
 	 * having a Y offset that isn't divisible by 4 causes FIFO underrun
 	 * and screen flicker.
 	 */
-	if (IS_GEN(dev_priv, 9, 10) &&
+	if (IS_GEN_RANGE(dev_priv, 9, 10) &&
 	    (fbc->state_cache.plane.adjusted_y & 3)) {
 		fbc->no_fbc_reason = "plane Y offset is misaligned";
 		return false;
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index e26d05a46451..41921a843d42 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -252,7 +252,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
 		return ENGINE_WAIT_KICK;
 	}
 
-	if (IS_GEN(dev_priv, 6, 7) && tmp & RING_WAIT_SEMAPHORE) {
+	if (IS_GEN_RANGE(dev_priv, 6, 7) && tmp & RING_WAIT_SEMAPHORE) {
 		switch (semaphore_passed(engine)) {
 		default:
 			return ENGINE_DEAD;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 02f6a9b81083..720c11e0acd1 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -445,7 +445,7 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *engine)
 	POSTING_READ(mmio);
 
 	/* Flush the TLB for this page */
-	if (IS_GEN(dev_priv, 6, 7)) {
+	if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		i915_reg_t reg = RING_INSTPM(engine->mmio_base);
 
 		/* ring should be idle before issuing a sync flush*/
@@ -679,7 +679,7 @@ static int init_render_ring(struct intel_engine_cs *engine)
 		return ret;
 
 	/* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */
-	if (IS_GEN(dev_priv, 4, 6))
+	if (IS_GEN_RANGE(dev_priv, 4, 6))
 		I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH));
 
 	/* We need to disable the AsyncFlip performance optimisations in order
@@ -688,7 +688,7 @@ static int init_render_ring(struct intel_engine_cs *engine)
 	 *
 	 * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv
 	 */
-	if (IS_GEN(dev_priv, 6, 7))
+	if (IS_GEN_RANGE(dev_priv, 6, 7))
 		I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE));
 
 	/* Required for the hardware to program scanline values for waiting */
@@ -713,7 +713,7 @@ static int init_render_ring(struct intel_engine_cs *engine)
 			   _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB));
 	}
 
-	if (IS_GEN(dev_priv, 6, 7))
+	if (IS_GEN_RANGE(dev_priv, 6, 7))
 		I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING));
 
 	if (INTEL_GEN(dev_priv) >= 6)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 9289515108c3..631b4165fe00 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1567,13 +1567,13 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 	dev_priv->uncore.pmic_bus_access_nb.notifier_call =
 		i915_pmic_bus_access_notifier;
 
-	if (IS_GEN(dev_priv, 2, 4) || intel_vgpu_active(dev_priv)) {
+	if (IS_GEN_RANGE(dev_priv, 2, 4) || intel_vgpu_active(dev_priv)) {
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen2);
 		ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen2);
 	} else if (IS_GEN5(dev_priv)) {
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen5);
 		ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen5);
-	} else if (IS_GEN(dev_priv, 6, 7)) {
+	} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen6);
 
 		if (IS_VALLEYVIEW(dev_priv)) {
@@ -1592,7 +1592,7 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 			ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen8);
 			ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen6);
 		}
-	} else if (IS_GEN(dev_priv, 9, 10)) {
+	} else if (IS_GEN_RANGE(dev_priv, 9, 10)) {
 		ASSIGN_FW_DOMAINS_TABLE(__gen9_fw_ranges);
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, fwtable);
 		ASSIGN_READ_MMIO_VFUNCS(dev_priv, fwtable);
@@ -2321,7 +2321,7 @@ intel_uncore_forcewake_for_read(struct drm_i915_private *dev_priv,
 	} else if (INTEL_GEN(dev_priv) >= 6) {
 		fw_domains = __gen6_reg_read_fw_domains(offset);
 	} else {
-		WARN_ON(!IS_GEN(dev_priv, 2, 5));
+		WARN_ON(!IS_GEN_RANGE(dev_priv, 2, 5));
 		fw_domains = 0;
 	}
 
@@ -2343,10 +2343,10 @@ intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
 		fw_domains = __fwtable_reg_write_fw_domains(offset);
 	} else if (IS_GEN8(dev_priv)) {
 		fw_domains = __gen8_reg_write_fw_domains(offset);
-	} else if (IS_GEN(dev_priv, 6, 7)) {
+	} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		fw_domains = FORCEWAKE_RENDER;
 	} else {
-		WARN_ON(!IS_GEN(dev_priv, 2, 5));
+		WARN_ON(!IS_GEN_RANGE(dev_priv, 2, 5));
 		fw_domains = 0;
 	}
 

From cf819eff907ab49205ece97c96baeb909fd36f4d Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Wed, 12 Dec 2018 10:10:43 -0800
Subject: [PATCH 040/118] drm/i915: replace IS_GEN<N> with IS_GEN(..., N)

Define IS_GEN() similarly to our IS_GEN_RANGE(). but use gen instead of
gen_mask to do the comparison. Now callers can pass then gen as a parameter,
so we don't require one macro for each gen.

The following spatch was used to convert the users of these macros:

@@
expression e;
@@
(
- IS_GEN2(e)
+ IS_GEN(e, 2)
|
- IS_GEN3(e)
+ IS_GEN(e, 3)
|
- IS_GEN4(e)
+ IS_GEN(e, 4)
|
- IS_GEN5(e)
+ IS_GEN(e, 5)
|
- IS_GEN6(e)
+ IS_GEN(e, 6)
|
- IS_GEN7(e)
+ IS_GEN(e, 7)
|
- IS_GEN8(e)
+ IS_GEN(e, 8)
|
- IS_GEN9(e)
+ IS_GEN(e, 9)
|
- IS_GEN10(e)
+ IS_GEN(e, 10)
|
- IS_GEN11(e)
+ IS_GEN(e, 11)
)

v2: use IS_GEN rather than GT_GEN and compare to info.gen rather than
    using the bitmask

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212181044.15886-2-lucas.demarchi@intel.com
---
 drivers/gpu/drm/i915/gvt/vgpu.c            |  4 +-
 drivers/gpu/drm/i915/i915_cmd_parser.c     |  2 +-
 drivers/gpu/drm/i915/i915_debugfs.c        | 16 ++---
 drivers/gpu/drm/i915/i915_drv.c            | 18 +++---
 drivers/gpu/drm/i915/i915_drv.h            | 29 +++------
 drivers/gpu/drm/i915/i915_gem.c            | 14 ++--
 drivers/gpu/drm/i915/i915_gem_context.c    |  2 +-
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |  4 +-
 drivers/gpu/drm/i915/i915_gem_fence_reg.c  | 10 +--
 drivers/gpu/drm/i915/i915_gem_gtt.c        |  6 +-
 drivers/gpu/drm/i915/i915_gem_stolen.c     |  7 +-
 drivers/gpu/drm/i915/i915_gem_tiling.c     |  4 +-
 drivers/gpu/drm/i915/i915_gpu_error.c      | 18 +++---
 drivers/gpu/drm/i915/i915_irq.c            | 24 +++----
 drivers/gpu/drm/i915/i915_perf.c           |  4 +-
 drivers/gpu/drm/i915/i915_suspend.c        | 12 ++--
 drivers/gpu/drm/i915/intel_atomic.c        |  2 +-
 drivers/gpu/drm/i915/intel_audio.c         |  2 +-
 drivers/gpu/drm/i915/intel_cdclk.c         | 10 +--
 drivers/gpu/drm/i915/intel_crt.c           |  6 +-
 drivers/gpu/drm/i915/intel_device_info.c   | 14 ++--
 drivers/gpu/drm/i915/intel_display.c       | 74 +++++++++++-----------
 drivers/gpu/drm/i915/intel_dp.c            | 24 +++----
 drivers/gpu/drm/i915/intel_engine_cs.c     |  4 +-
 drivers/gpu/drm/i915/intel_fbc.c           | 22 +++----
 drivers/gpu/drm/i915/intel_fifo_underrun.c |  6 +-
 drivers/gpu/drm/i915/intel_guc_fw.c        |  2 +-
 drivers/gpu/drm/i915/intel_hangcheck.c     |  2 +-
 drivers/gpu/drm/i915/intel_lrc.c           |  4 +-
 drivers/gpu/drm/i915/intel_lvds.c          |  4 +-
 drivers/gpu/drm/i915/intel_mocs.c          |  2 +-
 drivers/gpu/drm/i915/intel_overlay.c       | 10 +--
 drivers/gpu/drm/i915/intel_panel.c         |  8 +--
 drivers/gpu/drm/i915/intel_pipe_crc.c      |  8 +--
 drivers/gpu/drm/i915/intel_pm.c            | 58 ++++++++---------
 drivers/gpu/drm/i915/intel_psr.c           |  4 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c    | 28 ++++----
 drivers/gpu/drm/i915/intel_ringbuffer.h    |  4 +-
 drivers/gpu/drm/i915/intel_runtime_pm.c    |  4 +-
 drivers/gpu/drm/i915/intel_sprite.c        |  6 +-
 drivers/gpu/drm/i915/intel_uc.c            |  2 +-
 drivers/gpu/drm/i915/intel_uncore.c        | 18 +++---
 drivers/gpu/drm/i915/intel_wopcm.c         |  4 +-
 drivers/gpu/drm/i915/intel_workarounds.c   |  4 +-
 44 files changed, 249 insertions(+), 261 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index c628be05fbfe..e1c860f80eb0 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -148,10 +148,10 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt)
 		gvt->types[i].avail_instance = min(low_avail / vgpu_types[i].low_mm,
 						   high_avail / vgpu_types[i].high_mm);
 
-		if (IS_GEN8(gvt->dev_priv))
+		if (IS_GEN(gvt->dev_priv, 8))
 			sprintf(gvt->types[i].name, "GVTg_V4_%s",
 						vgpu_types[i].name);
-		else if (IS_GEN9(gvt->dev_priv))
+		else if (IS_GEN(gvt->dev_priv, 9))
 			sprintf(gvt->types[i].name, "GVTg_V5_%s",
 						vgpu_types[i].name);
 
diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index 95478db9998b..33e8eed64423 100644
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -865,7 +865,7 @@ void intel_engine_init_cmd_parser(struct intel_engine_cs *engine)
 	int cmd_table_count;
 	int ret;
 
-	if (!IS_GEN7(engine->i915))
+	if (!IS_GEN(engine->i915, 7))
 		return;
 
 	switch (engine->id) {
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 40a61ef9aac1..2b52c91113b3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1070,7 +1070,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 
 	intel_runtime_pm_get(dev_priv);
 
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		u16 rgvswctl = I915_READ16(MEMSWCTL);
 		u16 rgvstat = I915_READ16(MEMSTAT_ILK);
 
@@ -1791,7 +1791,7 @@ static int i915_emon_status(struct seq_file *m, void *unused)
 	unsigned long temp, chipset, gfx;
 	int ret;
 
-	if (!IS_GEN5(dev_priv))
+	if (!IS_GEN(dev_priv, 5))
 		return -ENODEV;
 
 	intel_runtime_pm_get(dev_priv);
@@ -2040,7 +2040,7 @@ static int i915_swizzle_info(struct seq_file *m, void *data)
 	seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
 		   swizzle_string(dev_priv->mm.bit_6_swizzle_y));
 
-	if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv)) {
+	if (IS_GEN(dev_priv, 3) || IS_GEN(dev_priv, 4)) {
 		seq_printf(m, "DDC = 0x%08x\n",
 			   I915_READ(DCC));
 		seq_printf(m, "DDC2 = 0x%08x\n",
@@ -2125,12 +2125,12 @@ static void gen6_ppgtt_info(struct seq_file *m,
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
 
 	for_each_engine(engine, dev_priv, id) {
 		seq_printf(m, "%s\n", engine->name);
-		if (IS_GEN7(dev_priv))
+		if (IS_GEN(dev_priv, 7))
 			seq_printf(m, "GFX_MODE: 0x%08x\n",
 				   I915_READ(RING_MODE_GEN7(engine)));
 		seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
@@ -4274,7 +4274,7 @@ i915_cache_sharing_get(void *data, u64 *val)
 	struct drm_i915_private *dev_priv = data;
 	u32 snpcr;
 
-	if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
+	if (!(IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)))
 		return -ENODEV;
 
 	intel_runtime_pm_get(dev_priv);
@@ -4294,7 +4294,7 @@ i915_cache_sharing_set(void *data, u64 val)
 	struct drm_i915_private *dev_priv = data;
 	u32 snpcr;
 
-	if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
+	if (!(IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)))
 		return -ENODEV;
 
 	if (val > 3)
@@ -4551,7 +4551,7 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 		cherryview_sseu_device_status(dev_priv, &sseu);
 	} else if (IS_BROADWELL(dev_priv)) {
 		broadwell_sseu_device_status(dev_priv, &sseu);
-	} else if (IS_GEN9(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 9)) {
 		gen9_sseu_device_status(dev_priv, &sseu);
 	} else if (INTEL_GEN(dev_priv) >= 10) {
 		gen10_sseu_device_status(dev_priv, &sseu);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b310a897a4ad..77c0f97fe77c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -132,15 +132,15 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 	switch (id) {
 	case INTEL_PCH_IBX_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
-		WARN_ON(!IS_GEN5(dev_priv));
+		WARN_ON(!IS_GEN(dev_priv, 5));
 		return PCH_IBX;
 	case INTEL_PCH_CPT_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found CougarPoint PCH\n");
-		WARN_ON(!IS_GEN6(dev_priv) && !IS_IVYBRIDGE(dev_priv));
+		WARN_ON(!IS_GEN(dev_priv, 6) && !IS_IVYBRIDGE(dev_priv));
 		return PCH_CPT;
 	case INTEL_PCH_PPT_DEVICE_ID_TYPE:
 		DRM_DEBUG_KMS("Found PantherPoint PCH\n");
-		WARN_ON(!IS_GEN6(dev_priv) && !IS_IVYBRIDGE(dev_priv));
+		WARN_ON(!IS_GEN(dev_priv, 6) && !IS_IVYBRIDGE(dev_priv));
 		/* PantherPoint is CPT compatible */
 		return PCH_CPT;
 	case INTEL_PCH_LPT_DEVICE_ID_TYPE:
@@ -217,9 +217,9 @@ intel_virt_detect_pch(const struct drm_i915_private *dev_priv)
 	 * make an educated guess as to which PCH is really there.
 	 */
 
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		id = INTEL_PCH_IBX_DEVICE_ID_TYPE;
-	else if (IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv))
+	else if (IS_GEN(dev_priv, 6) || IS_IVYBRIDGE(dev_priv))
 		id = INTEL_PCH_CPT_DEVICE_ID_TYPE;
 	else if (IS_HSW_ULT(dev_priv) || IS_BDW_ULT(dev_priv))
 		id = INTEL_PCH_LPT_LP_DEVICE_ID_TYPE;
@@ -966,7 +966,7 @@ static int i915_mmio_setup(struct drm_i915_private *dev_priv)
 	int mmio_bar;
 	int mmio_size;
 
-	mmio_bar = IS_GEN2(dev_priv) ? 1 : 0;
+	mmio_bar = IS_GEN(dev_priv, 2) ? 1 : 0;
 	/*
 	 * Before gen4, the registers and the GTT are behind different BARs.
 	 * However, from gen4 onwards, the registers and the GTT are shared
@@ -1341,7 +1341,7 @@ intel_get_dram_info(struct drm_i915_private *dev_priv)
 	/* Need to calculate bandwidth only for Gen9 */
 	if (IS_BROXTON(dev_priv))
 		ret = bxt_get_dram_info(dev_priv);
-	else if (IS_GEN9(dev_priv))
+	else if (IS_GEN(dev_priv, 9))
 		ret = skl_get_dram_info(dev_priv);
 	else
 		ret = skl_dram_get_channels_info(dev_priv);
@@ -1436,7 +1436,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 	pci_set_master(pdev);
 
 	/* overlay on gen2 is broken and can't address above 1G */
-	if (IS_GEN2(dev_priv)) {
+	if (IS_GEN(dev_priv, 2)) {
 		ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(30));
 		if (ret) {
 			DRM_ERROR("failed to set DMA mask\n");
@@ -1574,7 +1574,7 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
 		acpi_video_register();
 	}
 
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		intel_gpu_ips_init(dev_priv);
 
 	intel_audio_init(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 031738d48aad..c34198f51b13 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2214,6 +2214,10 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_GEN_RANGE(dev_priv, s, e) \
 	(!!((dev_priv)->info.gen_mask & INTEL_GEN_MASK((s), (e))))
 
+#define IS_GEN(dev_priv, n) \
+	(BUILD_BUG_ON_ZERO(!__builtin_constant_p(n)) + \
+	 (dev_priv)->info.gen == (n))
+
 /*
  * Return true if revision is in range [since,until] inclusive.
  *
@@ -2365,26 +2369,9 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_ICL_REVID(p, since, until) \
 	(IS_ICELAKE(p) && IS_REVID(p, since, until))
 
-/*
- * The genX designation typically refers to the render engine, so render
- * capability related checks should use IS_GEN, while display and other checks
- * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
- * chips, etc.).
- */
-#define IS_GEN2(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(1)))
-#define IS_GEN3(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(2)))
-#define IS_GEN4(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(3)))
-#define IS_GEN5(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(4)))
-#define IS_GEN6(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(5)))
-#define IS_GEN7(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(6)))
-#define IS_GEN8(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(7)))
-#define IS_GEN9(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(8)))
-#define IS_GEN10(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(9)))
-#define IS_GEN11(dev_priv)	(!!((dev_priv)->info.gen_mask & BIT(10)))
-
 #define IS_LP(dev_priv)	(INTEL_INFO(dev_priv)->is_lp)
-#define IS_GEN9_LP(dev_priv)	(IS_GEN9(dev_priv) && IS_LP(dev_priv))
-#define IS_GEN9_BC(dev_priv)	(IS_GEN9(dev_priv) && !IS_LP(dev_priv))
+#define IS_GEN9_LP(dev_priv)	(IS_GEN(dev_priv, 9) && IS_LP(dev_priv))
+#define IS_GEN9_BC(dev_priv)	(IS_GEN(dev_priv, 9) && !IS_LP(dev_priv))
 
 #define ENGINE_MASK(id)	BIT(id)
 #define RENDER_RING	ENGINE_MASK(RCS)
@@ -2405,7 +2392,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_BLT(dev_priv)	HAS_ENGINE(dev_priv, BCS)
 #define HAS_VEBOX(dev_priv)	HAS_ENGINE(dev_priv, VECS)
 
-#define HAS_LEGACY_SEMAPHORES(dev_priv) IS_GEN7(dev_priv)
+#define HAS_LEGACY_SEMAPHORES(dev_priv) IS_GEN(dev_priv, 7)
 
 #define HAS_LLC(dev_priv)	((dev_priv)->info.has_llc)
 #define HAS_SNOOP(dev_priv)	((dev_priv)->info.has_snoop)
@@ -2457,7 +2444,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
  * rows, which changed the alignment requirements and fence programming.
  */
-#define HAS_128_BYTE_Y_TILING(dev_priv) (!IS_GEN2(dev_priv) && \
+#define HAS_128_BYTE_Y_TILING(dev_priv) (!IS_GEN(dev_priv, 2) && \
 					 !(IS_I915G(dev_priv) || \
 					 IS_I915GM(dev_priv)))
 #define SUPPORTS_TV(dev_priv)		((dev_priv)->info.display.supports_tv)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index d36a9755ad91..39ee67e01bb7 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5226,15 +5226,15 @@ void i915_gem_init_swizzling(struct drm_i915_private *dev_priv)
 	I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
 				 DISP_TILE_SURFACE_SWIZZLING);
 
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		return;
 
 	I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL);
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB));
-	else if (IS_GEN7(dev_priv))
+	else if (IS_GEN(dev_priv, 7))
 		I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB));
-	else if (IS_GEN8(dev_priv))
+	else if (IS_GEN(dev_priv, 8))
 		I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_BDW));
 	else
 		BUG();
@@ -5256,10 +5256,10 @@ static void init_unused_rings(struct drm_i915_private *dev_priv)
 		init_unused_ring(dev_priv, SRB1_BASE);
 		init_unused_ring(dev_priv, SRB2_BASE);
 		init_unused_ring(dev_priv, SRB3_BASE);
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		init_unused_ring(dev_priv, SRB0_BASE);
 		init_unused_ring(dev_priv, SRB1_BASE);
-	} else if (IS_GEN3(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 3)) {
 		init_unused_ring(dev_priv, PRB1_BASE);
 		init_unused_ring(dev_priv, PRB2_BASE);
 	}
@@ -5583,7 +5583,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 	}
 
 	ret = i915_gem_init_scratch(dev_priv,
-				    IS_GEN2(dev_priv) ? SZ_256K : PAGE_SIZE);
+				    IS_GEN(dev_priv, 2) ? SZ_256K : PAGE_SIZE);
 	if (ret) {
 		GEM_BUG_ON(ret == -EIO);
 		goto err_ggtt;
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 371c07087095..014152e2bc68 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -311,7 +311,7 @@ static u32 default_desc_template(const struct drm_i915_private *i915,
 		address_mode = INTEL_LEGACY_64B_CONTEXT;
 	desc |= address_mode << GEN8_CTX_ADDRESSING_MODE_SHIFT;
 
-	if (IS_GEN8(i915))
+	if (IS_GEN(i915, 8))
 		desc |= GEN8_CTX_L3LLC_COHERENT;
 
 	/* TODO: WaDisableLiteRestore when we start using semaphore
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 1a1c04db6c80..844bd5ad87bc 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1380,7 +1380,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
 		 * batchbuffers.
 		 */
 		if (reloc->write_domain == I915_GEM_DOMAIN_INSTRUCTION &&
-		    IS_GEN6(eb->i915)) {
+		    IS_GEN(eb->i915, 6)) {
 			err = i915_vma_bind(target, target->obj->cache_level,
 					    PIN_GLOBAL);
 			if (WARN_ONCE(err,
@@ -1893,7 +1893,7 @@ static int i915_reset_gen7_sol_offsets(struct i915_request *rq)
 	u32 *cs;
 	int i;
 
-	if (!IS_GEN7(rq->i915) || rq->engine->id != RCS) {
+	if (!IS_GEN(rq->i915, 7) || rq->engine->id != RCS) {
 		DRM_DEBUG("sol reset is gen7/rcs only\n");
 		return -EINVAL;
 	}
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
index d548ac05ccd7..24df2e2a8fc1 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
@@ -193,9 +193,9 @@ static void fence_write(struct drm_i915_fence_reg *fence,
 	 * and explicitly managed for internal users.
 	 */
 
-	if (IS_GEN2(fence->i915))
+	if (IS_GEN(fence->i915, 2))
 		i830_write_fence_reg(fence, vma);
-	else if (IS_GEN3(fence->i915))
+	else if (IS_GEN(fence->i915, 3))
 		i915_write_fence_reg(fence, vma);
 	else
 		i965_write_fence_reg(fence, vma);
@@ -596,13 +596,13 @@ i915_gem_detect_bit_6_swizzle(struct drm_i915_private *dev_priv)
 				swizzle_y = I915_BIT_6_SWIZZLE_NONE;
 			}
 		}
-	} else if (IS_GEN5(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 5)) {
 		/* On Ironlake whatever DRAM config, GPU always do
 		 * same swizzling setup.
 		 */
 		swizzle_x = I915_BIT_6_SWIZZLE_9_10;
 		swizzle_y = I915_BIT_6_SWIZZLE_9;
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		/* As far as we know, the 865 doesn't have these bit 6
 		 * swizzling issues.
 		 */
@@ -647,7 +647,7 @@ i915_gem_detect_bit_6_swizzle(struct drm_i915_private *dev_priv)
 		}
 
 		/* check for L-shaped memory aka modified enhanced addressing */
-		if (IS_GEN4(dev_priv) &&
+		if (IS_GEN(dev_priv, 4) &&
 		    !(I915_READ(DCC2) & DCC2_MODIFIED_ENHANCED_DISABLE)) {
 			swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
 			swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 62bde517d383..6e31745f6156 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2193,9 +2193,9 @@ int i915_ppgtt_init_hw(struct drm_i915_private *dev_priv)
 {
 	gtt_write_workarounds(dev_priv);
 
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		gen6_ppgtt_enable(dev_priv);
-	else if (IS_GEN7(dev_priv))
+	else if (IS_GEN(dev_priv, 7))
 		gen7_ppgtt_enable(dev_priv);
 
 	return 0;
@@ -2277,7 +2277,7 @@ static bool needs_idle_maps(struct drm_i915_private *dev_priv)
 	/* Query intel_iommu to see if we need the workaround. Presumably that
 	 * was loaded first.
 	 */
-	return IS_GEN5(dev_priv) && IS_MOBILE(dev_priv) && intel_vtd_active();
+	return IS_GEN(dev_priv, 5) && IS_MOBILE(dev_priv) && intel_vtd_active();
 }
 
 static void gen6_check_faults(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index f29a7ff7c362..2f756a97689a 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -102,7 +102,7 @@ static int i915_adjust_stolen(struct drm_i915_private *dev_priv,
 		resource_size_t ggtt_start;
 
 		ggtt_start = I915_READ(PGTBL_CTL);
-		if (IS_GEN4(dev_priv))
+		if (IS_GEN(dev_priv, 4))
 			ggtt_start = (ggtt_start & PGTBL_ADDRESS_LO_MASK) |
 				     (ggtt_start & PGTBL_ADDRESS_HI_MASK) << 28;
 		else
@@ -156,7 +156,7 @@ static int i915_adjust_stolen(struct drm_i915_private *dev_priv,
 		 * GEN3 firmware likes to smash pci bridges into the stolen
 		 * range. Apparently this works.
 		 */
-		if (r == NULL && !IS_GEN3(dev_priv)) {
+		if (r == NULL && !IS_GEN(dev_priv, 3)) {
 			DRM_ERROR("conflict detected with stolen region: %pR\n",
 				  dsm);
 
@@ -194,7 +194,8 @@ static void g4x_get_stolen_reserved(struct drm_i915_private *dev_priv,
 	 * Whether ILK really reuses the ELK register for this is unclear.
 	 * Let's see if we catch anyone with this supposedly enabled on ILK.
 	 */
-	WARN(IS_GEN5(dev_priv), "ILK stolen reserved found? 0x%08x\n", reg_val);
+	WARN(IS_GEN(dev_priv, 5), "ILK stolen reserved found? 0x%08x\n",
+	     reg_val);
 
 	if (!(reg_val & G4X_STOLEN_RESERVED_ADDR2_MASK))
 		return;
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index d9dc9df523b5..39319ff1679c 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -87,7 +87,7 @@ u32 i915_gem_fence_size(struct drm_i915_private *i915,
 	}
 
 	/* Previous chips need a power-of-two fence region when tiling */
-	if (IS_GEN3(i915))
+	if (IS_GEN(i915, 3))
 		ggtt_size = 1024*1024;
 	else
 		ggtt_size = 512*1024;
@@ -162,7 +162,7 @@ i915_tiling_ok(struct drm_i915_gem_object *obj,
 			return false;
 	}
 
-	if (IS_GEN2(i915) ||
+	if (IS_GEN(i915, 2) ||
 	    (tiling == I915_TILING_Y && HAS_128_BYTE_Y_TILING(i915)))
 		tile_width = 128;
 	else
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 3f9ce403c755..4477631d2636 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -735,7 +735,7 @@ static void __err_print_to_sgl(struct drm_i915_error_state_buf *m,
 		err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
 	}
 
-	if (IS_GEN7(m->i915))
+	if (IS_GEN(m->i915, 7))
 		err_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
 
 	for (i = 0; i < ARRAY_SIZE(error->engine); i++) {
@@ -1314,7 +1314,7 @@ static void error_record_engine_registers(struct i915_gpu_state *error,
 	if (!HWS_NEEDS_PHYSICAL(dev_priv)) {
 		i915_reg_t mmio;
 
-		if (IS_GEN7(dev_priv)) {
+		if (IS_GEN(dev_priv, 7)) {
 			switch (engine->id) {
 			default:
 			case RCS:
@@ -1330,7 +1330,7 @@ static void error_record_engine_registers(struct i915_gpu_state *error,
 				mmio = VEBOX_HWS_PGA_GEN7;
 				break;
 			}
-		} else if (IS_GEN6(engine->i915)) {
+		} else if (IS_GEN(engine->i915, 6)) {
 			mmio = RING_HWS_PGA_GEN6(engine->mmio_base);
 		} else {
 			/* XXX: gen8 returns to sanity */
@@ -1352,10 +1352,10 @@ static void error_record_engine_registers(struct i915_gpu_state *error,
 
 		ee->vm_info.gfx_mode = I915_READ(RING_MODE_GEN7(engine));
 
-		if (IS_GEN6(dev_priv))
+		if (IS_GEN(dev_priv, 6))
 			ee->vm_info.pp_dir_base =
 				I915_READ(RING_PP_DIR_BASE_READ(engine));
-		else if (IS_GEN7(dev_priv))
+		else if (IS_GEN(dev_priv, 7))
 			ee->vm_info.pp_dir_base =
 				I915_READ(RING_PP_DIR_BASE(engine));
 		else if (INTEL_GEN(dev_priv) >= 8)
@@ -1725,7 +1725,7 @@ static void capture_reg_state(struct i915_gpu_state *error)
 		error->forcewake = I915_READ_FW(FORCEWAKE_VLV);
 	}
 
-	if (IS_GEN7(dev_priv))
+	if (IS_GEN(dev_priv, 7))
 		error->err_int = I915_READ(GEN7_ERR_INT);
 
 	if (INTEL_GEN(dev_priv) >= 8) {
@@ -1733,7 +1733,7 @@ static void capture_reg_state(struct i915_gpu_state *error)
 		error->fault_data1 = I915_READ(GEN8_FAULT_TLB_DATA1);
 	}
 
-	if (IS_GEN6(dev_priv)) {
+	if (IS_GEN(dev_priv, 6)) {
 		error->forcewake = I915_READ_FW(FORCEWAKE);
 		error->gab_ctl = I915_READ(GAB_CTL);
 		error->gfx_mode = I915_READ(GFX_MODE);
@@ -1753,7 +1753,7 @@ static void capture_reg_state(struct i915_gpu_state *error)
 		error->ccid = I915_READ(CCID);
 
 	/* 3: Feature specific registers */
-	if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
+	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)) {
 		error->gam_ecochk = I915_READ(GAM_ECOCHK);
 		error->gac_eco = I915_READ(GAC_ECO_BITS);
 	}
@@ -1777,7 +1777,7 @@ static void capture_reg_state(struct i915_gpu_state *error)
 		error->ier = I915_READ(DEIER);
 		error->gtier[0] = I915_READ(GTIER);
 		error->ngtier = 1;
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		error->ier = I915_READ16(IER);
 	} else if (!IS_VALLEYVIEW(dev_priv)) {
 		error->ier = I915_READ(IER);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d447d7d508f4..e2dac9b5f4ce 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -950,7 +950,7 @@ static int __intel_get_crtc_scanline(struct intel_crtc *crtc)
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 		vtotal /= 2;
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		position = I915_READ_FW(PIPEDSL(pipe)) & DSL_LINEMASK_GEN2;
 	else
 		position = I915_READ_FW(PIPEDSL(pipe)) & DSL_LINEMASK_GEN3;
@@ -1030,7 +1030,7 @@ static bool i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 	if (stime)
 		*stime = ktime_get();
 
-	if (IS_GEN2(dev_priv) || IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
+	if (IS_GEN(dev_priv, 2) || IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
 		/* No obvious pixelcount register. Only query vertical
 		 * scanout position from Display scan line register.
 		 */
@@ -1090,7 +1090,7 @@ static bool i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 	else
 		position += vtotal - vbl_end;
 
-	if (IS_GEN2(dev_priv) || IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
+	if (IS_GEN(dev_priv, 2) || IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
 		*vpos = position;
 		*hpos = 0;
 	} else {
@@ -2547,7 +2547,7 @@ static void ilk_display_irq_handler(struct drm_i915_private *dev_priv,
 		I915_WRITE(SDEIIR, pch_iir);
 	}
 
-	if (IS_GEN5(dev_priv) && de_iir & DE_PCU_EVENT)
+	if (IS_GEN(dev_priv, 5) && de_iir & DE_PCU_EVENT)
 		ironlake_rps_change_irq_handler(dev_priv);
 }
 
@@ -3243,7 +3243,7 @@ void i915_clear_error_registers(struct drm_i915_private *dev_priv)
 {
 	u32 eir;
 
-	if (!IS_GEN2(dev_priv))
+	if (!IS_GEN(dev_priv, 2))
 		I915_WRITE(PGTBL_ER, I915_READ(PGTBL_ER));
 
 	if (INTEL_GEN(dev_priv) < 4)
@@ -3586,11 +3586,11 @@ static void ironlake_irq_reset(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		I915_WRITE(HWSTAM, 0xffffffff);
 
 	GEN3_IRQ_RESET(DE);
-	if (IS_GEN7(dev_priv))
+	if (IS_GEN(dev_priv, 7))
 		I915_WRITE(GEN7_ERR_INT, 0xffffffff);
 
 	if (IS_HASWELL(dev_priv)) {
@@ -4045,7 +4045,7 @@ static void gen5_gt_irq_postinstall(struct drm_device *dev)
 	}
 
 	gt_irqs |= GT_RENDER_USER_INTERRUPT;
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		gt_irqs |= ILK_BSD_USER_INTERRUPT;
 	} else {
 		gt_irqs |= GT_BLT_USER_INTERRUPT | GT_BSD_USER_INTERRUPT;
@@ -4836,7 +4836,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 	if (INTEL_GEN(dev_priv) >= 8)
 		rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
 
-	if (IS_GEN2(dev_priv)) {
+	if (IS_GEN(dev_priv, 2)) {
 		/* Gen2 doesn't have a hardware frame counter */
 		dev->max_vblank_count = 0;
 	} else if (IS_G4X(dev_priv) || INTEL_GEN(dev_priv) >= 5) {
@@ -4852,7 +4852,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 	 * Gen2 doesn't have a hardware frame counter and so depends on
 	 * vblank interrupts to produce sane vblank seuquence numbers.
 	 */
-	if (!IS_GEN2(dev_priv))
+	if (!IS_GEN(dev_priv, 2))
 		dev->vblank_disable_immediate = true;
 
 	/* Most platforms treat the display irq block as an always-on
@@ -4924,14 +4924,14 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
 		dev->driver->disable_vblank = ironlake_disable_vblank;
 		dev_priv->display.hpd_irq_setup = ilk_hpd_irq_setup;
 	} else {
-		if (IS_GEN2(dev_priv)) {
+		if (IS_GEN(dev_priv, 2)) {
 			dev->driver->irq_preinstall = i8xx_irq_reset;
 			dev->driver->irq_postinstall = i8xx_irq_postinstall;
 			dev->driver->irq_handler = i8xx_irq_handler;
 			dev->driver->irq_uninstall = i8xx_irq_reset;
 			dev->driver->enable_vblank = i8xx_enable_vblank;
 			dev->driver->disable_vblank = i8xx_disable_vblank;
-		} else if (IS_GEN3(dev_priv)) {
+		} else if (IS_GEN(dev_priv, 3)) {
 			dev->driver->irq_preinstall = i915_irq_reset;
 			dev->driver->irq_postinstall = i915_irq_postinstall;
 			dev->driver->irq_uninstall = i915_irq_reset;
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index ad0095be435d..6c7992320443 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3415,7 +3415,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 		dev_priv->perf.oa.ops.read = gen8_oa_read;
 		dev_priv->perf.oa.ops.oa_hw_tail_read = gen8_oa_hw_tail_read;
 
-		if (IS_GEN8(dev_priv) || IS_GEN9(dev_priv)) {
+		if (IS_GEN(dev_priv, 8) || IS_GEN(dev_priv, 9)) {
 			dev_priv->perf.oa.ops.is_valid_b_counter_reg =
 				gen7_is_valid_b_counter_addr;
 			dev_priv->perf.oa.ops.is_valid_mux_reg =
@@ -3431,7 +3431,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 			dev_priv->perf.oa.ops.enable_metric_set = gen8_enable_metric_set;
 			dev_priv->perf.oa.ops.disable_metric_set = gen8_disable_metric_set;
 
-			if (IS_GEN8(dev_priv)) {
+			if (IS_GEN(dev_priv, 8)) {
 				dev_priv->perf.oa.ctx_oactxctrl_offset = 0x120;
 				dev_priv->perf.oa.ctx_flexeu0_offset = 0x2ce;
 
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 8f3aa4dc0c98..f40ba5e429e0 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -65,7 +65,7 @@ int i915_save_state(struct drm_i915_private *dev_priv)
 
 	i915_save_display(dev_priv);
 
-	if (IS_GEN4(dev_priv))
+	if (IS_GEN(dev_priv, 4))
 		pci_read_config_word(pdev, GCDGMBUS,
 				     &dev_priv->regfile.saveGCDGMBUS);
 
@@ -77,14 +77,14 @@ int i915_save_state(struct drm_i915_private *dev_priv)
 	dev_priv->regfile.saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);
 
 	/* Scratch space */
-	if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
+	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
 		for (i = 0; i < 7; i++) {
 			dev_priv->regfile.saveSWF0[i] = I915_READ(SWF0(i));
 			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
 		}
 		for (i = 0; i < 3; i++)
 			dev_priv->regfile.saveSWF3[i] = I915_READ(SWF3(i));
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		for (i = 0; i < 7; i++)
 			dev_priv->regfile.saveSWF1[i] = I915_READ(SWF1(i));
 	} else if (HAS_GMCH_DISPLAY(dev_priv)) {
@@ -108,7 +108,7 @@ int i915_restore_state(struct drm_i915_private *dev_priv)
 
 	mutex_lock(&dev_priv->drm.struct_mutex);
 
-	if (IS_GEN4(dev_priv))
+	if (IS_GEN(dev_priv, 4))
 		pci_write_config_word(pdev, GCDGMBUS,
 				      dev_priv->regfile.saveGCDGMBUS);
 	i915_restore_display(dev_priv);
@@ -122,14 +122,14 @@ int i915_restore_state(struct drm_i915_private *dev_priv)
 	I915_WRITE(MI_ARB_STATE, dev_priv->regfile.saveMI_ARB_STATE | 0xffff0000);
 
 	/* Scratch space */
-	if (IS_GEN2(dev_priv) && IS_MOBILE(dev_priv)) {
+	if (IS_GEN(dev_priv, 2) && IS_MOBILE(dev_priv)) {
 		for (i = 0; i < 7; i++) {
 			I915_WRITE(SWF0(i), dev_priv->regfile.saveSWF0[i]);
 			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
 		}
 		for (i = 0; i < 3; i++)
 			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		for (i = 0; i < 7; i++)
 			I915_WRITE(SWF1(i), dev_priv->regfile.saveSWF1[i]);
 	} else if (HAS_GMCH_DISPLAY(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 8cb02f28d30c..fdfc7425e644 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -233,7 +233,7 @@ static void intel_atomic_setup_scaler(struct intel_crtc_scaler_state *scaler_sta
 	if (plane_state && plane_state->base.fb &&
 	    plane_state->base.fb->format->is_yuv &&
 	    plane_state->base.fb->format->num_planes > 1) {
-		if (IS_GEN9(dev_priv) &&
+		if (IS_GEN(dev_priv, 9) &&
 		    !IS_GEMINILAKE(dev_priv)) {
 			mode = SKL_PS_SCALER_MODE_NV12;
 		} else if (icl_is_hdr_plane(to_intel_plane(plane_state->base.plane))) {
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index ae55a6865d5c..0571aa2846a7 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -758,7 +758,7 @@ static void i915_audio_component_codec_wake_override(struct device *kdev,
 	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
 	u32 tmp;
 
-	if (!IS_GEN9(dev_priv))
+	if (!IS_GEN(dev_priv, 9))
 		return;
 
 	i915_audio_component_get_power(kdev);
diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c
index 25e3aba9cded..2021e484a287 100644
--- a/drivers/gpu/drm/i915/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/intel_cdclk.c
@@ -2140,7 +2140,7 @@ static int intel_pixel_rate_to_cdclk(struct drm_i915_private *dev_priv,
 {
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
 		return DIV_ROUND_UP(pixel_rate, 2);
-	else if (IS_GEN9(dev_priv) ||
+	else if (IS_GEN(dev_priv, 9) ||
 		 IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
 		return pixel_rate;
 	else if (IS_CHERRYVIEW(dev_priv))
@@ -2176,7 +2176,7 @@ int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state)
 		if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) {
 			/* Display WA #1145: glk,cnl */
 			min_cdclk = max(316800, min_cdclk);
-		} else if (IS_GEN9(dev_priv) || IS_BROADWELL(dev_priv)) {
+		} else if (IS_GEN(dev_priv, 9) || IS_BROADWELL(dev_priv)) {
 			/* Display WA #1144: skl,bxt */
 			min_cdclk = max(432000, min_cdclk);
 		}
@@ -2537,7 +2537,7 @@ static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv)
 
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
 		return 2 * max_cdclk_freq;
-	else if (IS_GEN9(dev_priv) ||
+	else if (IS_GEN(dev_priv, 9) ||
 		 IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
 		return max_cdclk_freq;
 	else if (IS_CHERRYVIEW(dev_priv))
@@ -2785,9 +2785,9 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
 		dev_priv->display.get_cdclk = hsw_get_cdclk;
 	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		dev_priv->display.get_cdclk = vlv_get_cdclk;
-	else if (IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv))
+	else if (IS_GEN(dev_priv, 6) || IS_IVYBRIDGE(dev_priv))
 		dev_priv->display.get_cdclk = fixed_400mhz_get_cdclk;
-	else if (IS_GEN5(dev_priv))
+	else if (IS_GEN(dev_priv, 5))
 		dev_priv->display.get_cdclk = fixed_450mhz_get_cdclk;
 	else if (IS_GM45(dev_priv))
 		dev_priv->display.get_cdclk = gm45_get_cdclk;
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 68f2fb89ece3..bf4fd739b68c 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -322,7 +322,7 @@ intel_crt_mode_valid(struct drm_connector *connector,
 		 * DAC limit supposedly 355 MHz.
 		 */
 		max_clock = 270000;
-	else if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv))
+	else if (IS_GEN(dev_priv, 3) || IS_GEN(dev_priv, 4))
 		max_clock = 400000;
 	else
 		max_clock = 350000;
@@ -666,7 +666,7 @@ intel_crt_load_detect(struct intel_crt *crt, uint32_t pipe)
 	/* Set the border color to purple. */
 	I915_WRITE(bclrpat_reg, 0x500050);
 
-	if (!IS_GEN2(dev_priv)) {
+	if (!IS_GEN(dev_priv, 2)) {
 		uint32_t pipeconf = I915_READ(pipeconf_reg);
 		I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER);
 		POSTING_READ(pipeconf_reg);
@@ -981,7 +981,7 @@ void intel_crt_init(struct drm_i915_private *dev_priv)
 	else
 		crt->base.crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		connector->interlace_allowed = 0;
 	else
 		connector->interlace_allowed = 1;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index bd5c4d62c635..8627b9a6bff4 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -748,7 +748,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 	if (INTEL_GEN(dev_priv) >= 10) {
 		for_each_pipe(dev_priv, pipe)
 			info->num_scalers[pipe] = 2;
-	} else if (IS_GEN9(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 9)) {
 		info->num_scalers[PIPE_A] = 2;
 		info->num_scalers[PIPE_B] = 2;
 		info->num_scalers[PIPE_C] = 1;
@@ -756,10 +756,10 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 
 	BUILD_BUG_ON(I915_NUM_ENGINES > BITS_PER_TYPE(intel_ring_mask_t));
 
-	if (IS_GEN11(dev_priv))
+	if (IS_GEN(dev_priv, 11))
 		for_each_pipe(dev_priv, pipe)
 			info->num_sprites[pipe] = 6;
-	else if (IS_GEN10(dev_priv) || IS_GEMINILAKE(dev_priv))
+	else if (IS_GEN(dev_priv, 10) || IS_GEMINILAKE(dev_priv))
 		for_each_pipe(dev_priv, pipe)
 			info->num_sprites[pipe] = 3;
 	else if (IS_BROXTON(dev_priv)) {
@@ -787,7 +787,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 		DRM_INFO("Display disabled (module parameter)\n");
 		info->num_pipes = 0;
 	} else if (HAS_DISPLAY(dev_priv) &&
-		   (IS_GEN7(dev_priv) || IS_GEN8(dev_priv)) &&
+		   (IS_GEN(dev_priv, 7) || IS_GEN(dev_priv, 8)) &&
 		   HAS_PCH_SPLIT(dev_priv)) {
 		u32 fuse_strap = I915_READ(FUSE_STRAP);
 		u32 sfuse_strap = I915_READ(SFUSE_STRAP);
@@ -851,14 +851,14 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 		cherryview_sseu_info_init(dev_priv);
 	else if (IS_BROADWELL(dev_priv))
 		broadwell_sseu_info_init(dev_priv);
-	else if (IS_GEN9(dev_priv))
+	else if (IS_GEN(dev_priv, 9))
 		gen9_sseu_info_init(dev_priv);
-	else if (IS_GEN10(dev_priv))
+	else if (IS_GEN(dev_priv, 10))
 		gen10_sseu_info_init(dev_priv);
 	else if (INTEL_GEN(dev_priv) >= 11)
 		gen11_sseu_info_init(dev_priv);
 
-	if (IS_GEN6(dev_priv) && intel_vtd_active()) {
+	if (IS_GEN(dev_priv, 6) && intel_vtd_active()) {
 		DRM_INFO("Disabling ppGTT for VT-d support\n");
 		info->ppgtt = INTEL_PPGTT_NONE;
 	}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 13e5650b6f31..b9e8a9898983 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -984,7 +984,7 @@ static bool pipe_scanline_is_moving(struct drm_i915_private *dev_priv,
 	u32 line1, line2;
 	u32 line_mask;
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		line_mask = DSL_LINEMASK_GEN2;
 	else
 		line_mask = DSL_LINEMASK_GEN3;
@@ -1110,7 +1110,7 @@ static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
 	u32 val;
 
 	/* ILK FDI PLL is always enabled */
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		return;
 
 	/* On Haswell, DDI ports are responsible for the FDI PLL setup */
@@ -1850,7 +1850,7 @@ static void intel_disable_pipe(const struct intel_crtc_state *old_crtc_state)
 
 static unsigned int intel_tile_size(const struct drm_i915_private *dev_priv)
 {
-	return IS_GEN2(dev_priv) ? 2048 : 4096;
+	return IS_GEN(dev_priv, 2) ? 2048 : 4096;
 }
 
 static unsigned int
@@ -1863,7 +1863,7 @@ intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 	case DRM_FORMAT_MOD_LINEAR:
 		return cpp;
 	case I915_FORMAT_MOD_X_TILED:
-		if (IS_GEN2(dev_priv))
+		if (IS_GEN(dev_priv, 2))
 			return 128;
 		else
 			return 512;
@@ -1872,7 +1872,7 @@ intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane)
 			return 128;
 		/* fall through */
 	case I915_FORMAT_MOD_Y_TILED:
-		if (IS_GEN2(dev_priv) || HAS_128_BYTE_Y_TILING(dev_priv))
+		if (IS_GEN(dev_priv, 2) || HAS_128_BYTE_Y_TILING(dev_priv))
 			return 128;
 		else
 			return 512;
@@ -3193,8 +3193,8 @@ static u32 i9xx_plane_ctl(const struct intel_crtc_state *crtc_state,
 
 	dspcntr = DISPLAY_PLANE_ENABLE | DISPPLANE_GAMMA_ENABLE;
 
-	if (IS_G4X(dev_priv) || IS_GEN5(dev_priv) ||
-	    IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv))
+	if (IS_G4X(dev_priv) || IS_GEN(dev_priv, 5) ||
+	    IS_GEN(dev_priv, 6) || IS_IVYBRIDGE(dev_priv))
 		dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
 
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
@@ -4120,7 +4120,7 @@ static void gen6_fdi_link_train(struct intel_crtc *crtc,
 	temp = I915_READ(reg);
 	temp &= ~FDI_LINK_TRAIN_NONE;
 	temp |= FDI_LINK_TRAIN_PATTERN_2;
-	if (IS_GEN6(dev_priv)) {
+	if (IS_GEN(dev_priv, 6)) {
 		temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
 		/* SNB-B */
 		temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
@@ -4919,10 +4919,10 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
 	/* range checks */
 	if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H ||
 	    dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H ||
-	    (IS_GEN11(dev_priv) &&
+	    (IS_GEN(dev_priv, 11) &&
 	     (src_w > ICL_MAX_SRC_W || src_h > ICL_MAX_SRC_H ||
 	      dst_w > ICL_MAX_DST_W || dst_h > ICL_MAX_DST_H)) ||
-	    (!IS_GEN11(dev_priv) &&
+	    (!IS_GEN(dev_priv, 11) &&
 	     (src_w > SKL_MAX_SRC_W || src_h > SKL_MAX_SRC_H ||
 	      dst_w > SKL_MAX_DST_W || dst_h > SKL_MAX_DST_H)))	{
 		DRM_DEBUG_KMS("scaler_user index %u.%u: src %ux%u dst %ux%u "
@@ -5213,7 +5213,7 @@ intel_post_enable_primary(struct drm_crtc *crtc,
 	 * FIXME: Need to fix the logic to work when we turn off all planes
 	 * but leave the pipe running.
 	 */
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 
 	/* Underruns don't always raise interrupts, so check manually. */
@@ -5234,7 +5234,7 @@ intel_pre_disable_primary_noatomic(struct drm_crtc *crtc)
 	 * Gen2 reports pipe underruns whenever all planes are disabled.
 	 * So disable underrun reporting before all the planes get disabled.
 	 */
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
 
 	hsw_disable_ips(to_intel_crtc_state(crtc->state));
@@ -5292,7 +5292,7 @@ static bool needs_nv12_wa(struct drm_i915_private *dev_priv,
 		return false;
 
 	/* WA Display #0827: Gen9:all */
-	if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv))
+	if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv))
 		return true;
 
 	return false;
@@ -5365,7 +5365,7 @@ static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
 		 * Gen2 reports pipe underruns whenever all planes are disabled.
 		 * So disable underrun reporting before all the planes get disabled.
 		 */
-		if (IS_GEN2(dev_priv) && old_primary_state->visible &&
+		if (IS_GEN(dev_priv, 2) && old_primary_state->visible &&
 		    (modeset || !new_primary_state->base.visible))
 			intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false);
 	}
@@ -6184,7 +6184,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
 
 	intel_crtc->active = true;
 
-	if (!IS_GEN2(dev_priv))
+	if (!IS_GEN(dev_priv, 2))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 
 	intel_encoders_pre_enable(crtc, pipe_config, old_state);
@@ -6236,7 +6236,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
 	 * On gen2 planes are double buffered but the pipe isn't, so we must
 	 * wait for planes to fully turn off before disabling the pipe.
 	 */
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		intel_wait_for_vblank(dev_priv, pipe);
 
 	intel_encoders_disable(crtc, old_crtc_state, old_state);
@@ -6261,7 +6261,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
 
 	intel_encoders_post_pll_disable(crtc, old_crtc_state, old_state);
 
-	if (!IS_GEN2(dev_priv))
+	if (!IS_GEN(dev_priv, 2))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
 
 	if (!dev_priv->display.initial_watermarks)
@@ -6868,7 +6868,7 @@ static bool transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
 	 * Strictly speaking some registers are available before
 	 * gen7, but we only support DRRS on gen7+
 	 */
-	return IS_GEN7(dev_priv) || IS_CHERRYVIEW(dev_priv);
+	return IS_GEN(dev_priv, 7) || IS_CHERRYVIEW(dev_priv);
 }
 
 static void intel_cpu_transcoder_set_m_n(const struct intel_crtc_state *crtc_state,
@@ -9005,7 +9005,7 @@ static void ironlake_get_pfit_config(struct intel_crtc *crtc,
 		/* We currently do not free assignements of panel fitters on
 		 * ivb/hsw (since we don't use the higher upscaling modes which
 		 * differentiates them) so just WARN about this case for now. */
-		if (IS_GEN7(dev_priv)) {
+		if (IS_GEN(dev_priv, 7)) {
 			WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
 				PF_PIPE_SEL_IVB(crtc->pipe));
 		}
@@ -9995,7 +9995,7 @@ static u32 i9xx_cursor_ctl(const struct intel_crtc_state *crtc_state,
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 	u32 cntl = 0;
 
-	if (IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv))
+	if (IS_GEN(dev_priv, 6) || IS_IVYBRIDGE(dev_priv))
 		cntl |= MCURSOR_TRICKLE_FEED_DISABLE;
 
 	if (INTEL_GEN(dev_priv) <= 10) {
@@ -10468,7 +10468,7 @@ static int i9xx_pll_refclk(struct drm_device *dev,
 		return dev_priv->vbt.lvds_ssc_freq;
 	else if (HAS_PCH_SPLIT(dev_priv))
 		return 120000;
-	else if (!IS_GEN2(dev_priv))
+	else if (!IS_GEN(dev_priv, 2))
 		return 96000;
 	else
 		return 48000;
@@ -10501,7 +10501,7 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
 		clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
 	}
 
-	if (!IS_GEN2(dev_priv)) {
+	if (!IS_GEN(dev_priv, 2)) {
 		if (IS_PINEVIEW(dev_priv))
 			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
 				DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
@@ -10815,7 +10815,7 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat
 	 * the w/a on all three platforms.
 	 */
 	if (plane->id == PLANE_SPRITE0 &&
-	    (IS_GEN5(dev_priv) || IS_GEN6(dev_priv) ||
+	    (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6) ||
 	     IS_IVYBRIDGE(dev_priv)) &&
 	    (turn_on || (!needs_scaling(old_plane_state) &&
 			 needs_scaling(to_intel_plane_state(plane_state)))))
@@ -12373,7 +12373,7 @@ static void update_scanline_offset(const struct intel_crtc_state *crtc_state)
 	 * However if queried just before the start of vblank we'll get an
 	 * answer that's slightly in the future.
 	 */
-	if (IS_GEN2(dev_priv)) {
+	if (IS_GEN(dev_priv, 2)) {
 		const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode;
 		int vtotal;
 
@@ -13573,7 +13573,7 @@ void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
-	if (!IS_GEN2(dev_priv))
+	if (!IS_GEN(dev_priv, 2))
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, true);
 
 	if (crtc_state->has_pch_encoder) {
@@ -14180,7 +14180,7 @@ static bool has_edp_a(struct drm_i915_private *dev_priv)
 	if ((I915_READ(DP_A) & DP_DETECTED) == 0)
 		return false;
 
-	if (IS_GEN5(dev_priv) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE))
+	if (IS_GEN(dev_priv, 5) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE))
 		return false;
 
 	return true;
@@ -14392,7 +14392,7 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 		}
 
 		vlv_dsi_init(dev_priv);
-	} else if (!IS_GEN2(dev_priv) && !IS_PINEVIEW(dev_priv)) {
+	} else if (!IS_GEN(dev_priv, 2) && !IS_PINEVIEW(dev_priv)) {
 		bool found = false;
 
 		if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
@@ -14426,7 +14426,7 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 
 		if (IS_G4X(dev_priv) && (I915_READ(DP_D) & DP_DETECTED))
 			intel_dp_init(dev_priv, DP_D, PORT_D);
-	} else if (IS_GEN2(dev_priv))
+	} else if (IS_GEN(dev_priv, 2))
 		intel_dvo_init(dev_priv);
 
 	if (SUPPORTS_TV(dev_priv))
@@ -14624,7 +14624,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 		 * require the entire fb to accommodate that to avoid
 		 * potential runtime errors at plane configuration time.
 		 */
-		if (IS_GEN9(dev_priv) && i == 0 && fb->width > 3840 &&
+		if (IS_GEN(dev_priv, 9) && i == 0 && fb->width > 3840 &&
 		    is_ccs_modifier(fb->modifier))
 			stride_alignment *= 4;
 
@@ -14829,7 +14829,7 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
 		dev_priv->display.crtc_compute_clock = pnv_crtc_compute_clock;
 		dev_priv->display.crtc_enable = i9xx_crtc_enable;
 		dev_priv->display.crtc_disable = i9xx_crtc_disable;
-	} else if (!IS_GEN2(dev_priv)) {
+	} else if (!IS_GEN(dev_priv, 2)) {
 		dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
 		dev_priv->display.get_initial_plane_config =
 			i9xx_get_initial_plane_config;
@@ -14845,9 +14845,9 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
 		dev_priv->display.crtc_disable = i9xx_crtc_disable;
 	}
 
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
-	} else if (IS_GEN6(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 6)) {
 		dev_priv->display.fdi_link_train = gen6_fdi_link_train;
 	} else if (IS_IVYBRIDGE(dev_priv)) {
 		/* FIXME: detect B0+ stepping and use auto training */
@@ -14979,12 +14979,12 @@ static void sanitize_watermarks(struct drm_device *dev)
 
 static void intel_update_fdi_pll_freq(struct drm_i915_private *dev_priv)
 {
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		u32 fdi_pll_clk =
 			I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK;
 
 		dev_priv->fdi_pll_freq = (fdi_pll_clk + 2) * 10000;
-	} else if (IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 6) || IS_IVYBRIDGE(dev_priv)) {
 		dev_priv->fdi_pll_freq = 270000;
 	} else {
 		return;
@@ -15100,10 +15100,10 @@ int intel_modeset_init(struct drm_device *dev)
 	}
 
 	/* maximum framebuffer dimensions */
-	if (IS_GEN2(dev_priv)) {
+	if (IS_GEN(dev_priv, 2)) {
 		dev->mode_config.max_width = 2048;
 		dev->mode_config.max_height = 2048;
-	} else if (IS_GEN3(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 3)) {
 		dev->mode_config.max_width = 4096;
 		dev->mode_config.max_height = 4096;
 	} else {
@@ -15114,7 +15114,7 @@ int intel_modeset_init(struct drm_device *dev)
 	if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
 		dev->mode_config.cursor_width = IS_I845G(dev_priv) ? 64 : 512;
 		dev->mode_config.cursor_height = 1023;
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		dev->mode_config.cursor_width = 64;
 		dev->mode_config.cursor_height = 64;
 	} else {
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e94faa0a42eb..b3138abd3321 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -344,7 +344,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
 	if (INTEL_GEN(dev_priv) >= 10) {
 		source_rates = cnl_rates;
 		size = ARRAY_SIZE(cnl_rates);
-		if (IS_GEN10(dev_priv))
+		if (IS_GEN(dev_priv, 10))
 			max_rate = cnl_max_source_rate(intel_dp);
 		else
 			max_rate = icl_max_source_rate(intel_dp);
@@ -1128,7 +1128,7 @@ static uint32_t g4x_get_aux_send_ctl(struct intel_dp *intel_dp,
 			to_i915(intel_dig_port->base.base.dev);
 	uint32_t precharge, timeout;
 
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		precharge = 3;
 	else
 		precharge = 5;
@@ -2585,7 +2585,7 @@ static void edp_panel_on(struct intel_dp *intel_dp)
 
 	pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
 	pp = ironlake_get_pp_control(intel_dp);
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		/* ILK workaround: disable reset around power sequence */
 		pp &= ~PANEL_POWER_RESET;
 		I915_WRITE(pp_ctrl_reg, pp);
@@ -2593,7 +2593,7 @@ static void edp_panel_on(struct intel_dp *intel_dp)
 	}
 
 	pp |= PANEL_POWER_ON;
-	if (!IS_GEN5(dev_priv))
+	if (!IS_GEN(dev_priv, 5))
 		pp |= PANEL_POWER_RESET;
 
 	I915_WRITE(pp_ctrl_reg, pp);
@@ -2602,7 +2602,7 @@ static void edp_panel_on(struct intel_dp *intel_dp)
 	wait_panel_on(intel_dp);
 	intel_dp->last_power_on = jiffies;
 
-	if (IS_GEN5(dev_priv)) {
+	if (IS_GEN(dev_priv, 5)) {
 		pp |= PANEL_POWER_RESET; /* restore panel reset bit */
 		I915_WRITE(pp_ctrl_reg, pp);
 		POSTING_READ(pp_ctrl_reg);
@@ -2831,7 +2831,7 @@ static void ironlake_edp_pll_on(struct intel_dp *intel_dp,
 	 * 1. Wait for the start of vertical blank on the enabled pipe going to FDI
 	 * 2. Program DP PLL enable
 	 */
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		intel_wait_for_vblank_if_active(dev_priv, !crtc->pipe);
 
 	intel_dp->DP |= DP_PLL_ENABLE;
@@ -3849,7 +3849,7 @@ intel_dp_set_signal_levels(struct intel_dp *intel_dp)
 	} else if (IS_IVYBRIDGE(dev_priv) && port == PORT_A) {
 		signal_levels = ivb_cpu_edp_signal_levels(train_set);
 		mask = EDP_LINK_TRAIN_VOL_EMP_MASK_IVB;
-	} else if (IS_GEN6(dev_priv) && port == PORT_A) {
+	} else if (IS_GEN(dev_priv, 6) && port == PORT_A) {
 		signal_levels = snb_cpu_edp_signal_levels(train_set);
 		mask = EDP_LINK_TRAIN_VOL_EMP_MASK_SNB;
 	} else {
@@ -5271,17 +5271,17 @@ bool intel_digital_port_connected(struct intel_encoder *encoder)
 
 	if (INTEL_GEN(dev_priv) >= 11)
 		return icl_digital_port_connected(encoder);
-	else if (IS_GEN10(dev_priv) || IS_GEN9_BC(dev_priv))
+	else if (IS_GEN(dev_priv, 10) || IS_GEN9_BC(dev_priv))
 		return spt_digital_port_connected(encoder);
 	else if (IS_GEN9_LP(dev_priv))
 		return bxt_digital_port_connected(encoder);
-	else if (IS_GEN8(dev_priv))
+	else if (IS_GEN(dev_priv, 8))
 		return bdw_digital_port_connected(encoder);
-	else if (IS_GEN7(dev_priv))
+	else if (IS_GEN(dev_priv, 7))
 		return ivb_digital_port_connected(encoder);
-	else if (IS_GEN6(dev_priv))
+	else if (IS_GEN(dev_priv, 6))
 		return snb_digital_port_connected(encoder);
-	else if (IS_GEN5(dev_priv))
+	else if (IS_GEN(dev_priv, 5))
 		return ilk_digital_port_connected(encoder);
 
 	MISSING_CASE(INTEL_GEN(dev_priv));
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index fe5e87b6e1af..8ff794db7881 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -438,7 +438,7 @@ void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno)
 	 * the semaphore value, then when the seqno moves backwards all
 	 * future waits will complete instantly (causing rendering corruption).
 	 */
-	if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
+	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)) {
 		I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
 		I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
 		if (HAS_VEBOX(dev_priv))
@@ -774,7 +774,7 @@ u32 intel_calculate_mcr_s_ss_select(struct drm_i915_private *dev_priv)
 	u32 slice = fls(sseu->slice_mask);
 	u32 subslice = fls(sseu->subslice_mask[slice]);
 
-	if (IS_GEN10(dev_priv))
+	if (IS_GEN(dev_priv, 10))
 		mcr_s_ss_select = GEN8_MCR_SLICE(slice) |
 				  GEN8_MCR_SUBSLICE(subslice);
 	else if (INTEL_GEN(dev_priv) >= 11)
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index b57e31fc0f1e..1d3ff026d1bc 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -84,7 +84,7 @@ static int intel_fbc_calculate_cfb_size(struct drm_i915_private *dev_priv,
 	int lines;
 
 	intel_fbc_get_plane_source_size(cache, NULL, &lines);
-	if (IS_GEN7(dev_priv))
+	if (IS_GEN(dev_priv, 7))
 		lines = min(lines, 2048);
 	else if (INTEL_GEN(dev_priv) >= 8)
 		lines = min(lines, 2560);
@@ -127,7 +127,7 @@ static void i8xx_fbc_activate(struct drm_i915_private *dev_priv)
 		cfb_pitch = params->fb.stride;
 
 	/* FBC_CTL wants 32B or 64B units */
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		cfb_pitch = (cfb_pitch / 32) - 1;
 	else
 		cfb_pitch = (cfb_pitch / 64) - 1;
@@ -136,7 +136,7 @@ static void i8xx_fbc_activate(struct drm_i915_private *dev_priv)
 	for (i = 0; i < (FBC_LL_SIZE / 32) + 1; i++)
 		I915_WRITE(FBC_TAG(i), 0);
 
-	if (IS_GEN4(dev_priv)) {
+	if (IS_GEN(dev_priv, 4)) {
 		u32 fbc_ctl2;
 
 		/* Set it up... */
@@ -233,9 +233,9 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv)
 
 	if (params->flags & PLANE_HAS_FENCE) {
 		dpfc_ctl |= DPFC_CTL_FENCE_EN;
-		if (IS_GEN5(dev_priv))
+		if (IS_GEN(dev_priv, 5))
 			dpfc_ctl |= params->vma->fence->id;
-		if (IS_GEN6(dev_priv)) {
+		if (IS_GEN(dev_priv, 6)) {
 			I915_WRITE(SNB_DPFC_CTL_SA,
 				   SNB_CPU_FENCE_ENABLE |
 				   params->vma->fence->id);
@@ -243,7 +243,7 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv)
 				   params->crtc.fence_y_offset);
 		}
 	} else {
-		if (IS_GEN6(dev_priv)) {
+		if (IS_GEN(dev_priv, 6)) {
 			I915_WRITE(SNB_DPFC_CTL_SA, 0);
 			I915_WRITE(DPFC_CPU_FENCE_OFFSET, 0);
 		}
@@ -282,7 +282,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv)
 	int threshold = dev_priv->fbc.threshold;
 
 	/* Display WA #0529: skl, kbl, bxt. */
-	if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv)) {
+	if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv)) {
 		u32 val = I915_READ(CHICKEN_MISC_4);
 
 		val &= ~(FBC_STRIDE_OVERRIDE | FBC_STRIDE_MASK);
@@ -581,10 +581,10 @@ static bool stride_is_valid(struct drm_i915_private *dev_priv,
 	if (stride < 512)
 		return false;
 
-	if (IS_GEN2(dev_priv) || IS_GEN3(dev_priv))
+	if (IS_GEN(dev_priv, 2) || IS_GEN(dev_priv, 3))
 		return stride == 4096 || stride == 8192;
 
-	if (IS_GEN4(dev_priv) && !IS_G4X(dev_priv) && stride < 2048)
+	if (IS_GEN(dev_priv, 4) && !IS_G4X(dev_priv) && stride < 2048)
 		return false;
 
 	if (stride > 16384)
@@ -603,7 +603,7 @@ static bool pixel_format_is_valid(struct drm_i915_private *dev_priv,
 	case DRM_FORMAT_XRGB1555:
 	case DRM_FORMAT_RGB565:
 		/* 16bpp not supported on gen2 */
-		if (IS_GEN2(dev_priv))
+		if (IS_GEN(dev_priv, 2))
 			return false;
 		/* WaFbcOnly1to1Ratio:ctg */
 		if (IS_G4X(dev_priv))
@@ -842,7 +842,7 @@ static void intel_fbc_get_reg_params(struct intel_crtc *crtc,
 
 	params->cfb_size = intel_fbc_calculate_cfb_size(dev_priv, cache);
 
-	if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv))
+	if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv))
 		params->gen9_wa_cfb_stride = DIV_ROUND_UP(cache->plane.src_w,
 						32 * fbc->threshold) * 8;
 }
diff --git a/drivers/gpu/drm/i915/intel_fifo_underrun.c b/drivers/gpu/drm/i915/intel_fifo_underrun.c
index 77c123cc8817..ff2743ccbece 100644
--- a/drivers/gpu/drm/i915/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c
@@ -260,9 +260,9 @@ static bool __intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 
 	if (HAS_GMCH_DISPLAY(dev_priv))
 		i9xx_set_fifo_underrun_reporting(dev, pipe, enable, old);
-	else if (IS_GEN5(dev_priv) || IS_GEN6(dev_priv))
+	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
 		ironlake_set_fifo_underrun_reporting(dev, pipe, enable);
-	else if (IS_GEN7(dev_priv))
+	else if (IS_GEN(dev_priv, 7))
 		ivybridge_set_fifo_underrun_reporting(dev, pipe, enable, old);
 	else if (INTEL_GEN(dev_priv) >= 8)
 		broadwell_set_fifo_underrun_reporting(dev, pipe, enable);
@@ -423,7 +423,7 @@ void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv)
 
 		if (HAS_GMCH_DISPLAY(dev_priv))
 			i9xx_check_fifo_underruns(crtc);
-		else if (IS_GEN7(dev_priv))
+		else if (IS_GEN(dev_priv, 7))
 			ivybridge_check_fifo_underruns(crtc);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c
index a67144ee5ceb..4b437e05e2cd 100644
--- a/drivers/gpu/drm/i915/intel_guc_fw.c
+++ b/drivers/gpu/drm/i915/intel_guc_fw.c
@@ -115,7 +115,7 @@ static void guc_prepare_xfer(struct intel_guc *guc)
 	else
 		I915_WRITE(GEN9_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
 
-	if (IS_GEN9(dev_priv)) {
+	if (IS_GEN(dev_priv, 9)) {
 		/* DOP Clock Gating Enable for GuC clocks */
 		I915_WRITE(GEN7_MISCCPCTL, (GEN8_DOP_CLOCK_GATE_GUC_ENABLE |
 					    I915_READ(GEN7_MISCCPCTL)));
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index 41921a843d42..495fa145f37f 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -236,7 +236,7 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
 	if (ha != ENGINE_DEAD)
 		return ha;
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		return ENGINE_DEAD;
 
 	/* Is the chip hanging on a WAIT_FOR_EVENT?
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index ae7e5b288ed5..f16fb30da64f 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1990,7 +1990,7 @@ static int gen8_emit_flush_render(struct i915_request *request,
 		 * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
 		 * pipe control.
 		 */
-		if (IS_GEN9(request->i915))
+		if (IS_GEN(request->i915, 9))
 			vf_flush_wa = true;
 
 		/* WaForGAMHang:kbl */
@@ -2341,7 +2341,7 @@ make_rpcs(struct drm_i915_private *dev_priv)
 	 * subslices are enabled, or a count between one and four on the first
 	 * slice.
 	 */
-	if (IS_GEN11(dev_priv) && slices == 1 && subslices >= 4) {
+	if (IS_GEN(dev_priv, 11) && slices == 1 && subslices >= 4) {
 		GEM_BUG_ON(subslices & 1);
 
 		subslice_pg = false;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index e6c5d985ea0a..b85e195f7c8a 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -279,7 +279,7 @@ static void intel_pre_enable_lvds(struct intel_encoder *encoder,
 	 * special lvds dither control bit on pch-split platforms, dithering is
 	 * only controlled through the PIPECONF reg.
 	 */
-	if (IS_GEN4(dev_priv)) {
+	if (IS_GEN(dev_priv, 4)) {
 		/*
 		 * Bspec wording suggests that LVDS port dithering only exists
 		 * for 18bpp panels.
@@ -919,7 +919,7 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
 	intel_encoder->cloneable = 0;
 	if (HAS_PCH_SPLIT(dev_priv))
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
-	else if (IS_GEN4(dev_priv))
+	else if (IS_GEN(dev_priv, 4))
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	else
 		intel_encoder->crtc_mask = (1 << 1);
diff --git a/drivers/gpu/drm/i915/intel_mocs.c b/drivers/gpu/drm/i915/intel_mocs.c
index 77e9871a8c9a..e976c5ce5479 100644
--- a/drivers/gpu/drm/i915/intel_mocs.c
+++ b/drivers/gpu/drm/i915/intel_mocs.c
@@ -193,7 +193,7 @@ static bool get_mocs_settings(struct drm_i915_private *dev_priv,
 	}
 
 	/* WaDisableSkipCaching:skl,bxt,kbl,glk */
-	if (IS_GEN9(dev_priv)) {
+	if (IS_GEN(dev_priv, 9)) {
 		int i;
 
 		for (i = 0; i < table->size; i++)
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index 20ea7c99d13a..c153be043078 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -541,7 +541,7 @@ static u32 calc_swidthsw(struct drm_i915_private *dev_priv, u32 offset, u32 widt
 {
 	u32 sw;
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		sw = ALIGN((offset & 31) + width, 32);
 	else
 		sw = ALIGN((offset & 63) + width, 64);
@@ -778,7 +778,7 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
 		u32 oconfig;
 
 		oconfig = OCONF_CC_OUT_8BIT;
-		if (IS_GEN4(dev_priv))
+		if (IS_GEN(dev_priv, 4))
 			oconfig |= OCONF_CSC_MODE_BT709;
 		oconfig |= pipe == 0 ?
 			OCONF_PIPE_A : OCONF_PIPE_B;
@@ -1012,7 +1012,7 @@ static int check_overlay_src(struct drm_i915_private *dev_priv,
 
 	if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask)
 		return -EINVAL;
-	if (IS_GEN4(dev_priv) && rec->stride_Y < 512)
+	if (IS_GEN(dev_priv, 4) && rec->stride_Y < 512)
 		return -EINVAL;
 
 	tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ?
@@ -1246,7 +1246,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
 		attrs->contrast   = overlay->contrast;
 		attrs->saturation = overlay->saturation;
 
-		if (!IS_GEN2(dev_priv)) {
+		if (!IS_GEN(dev_priv, 2)) {
 			attrs->gamma0 = I915_READ(OGAMC0);
 			attrs->gamma1 = I915_READ(OGAMC1);
 			attrs->gamma2 = I915_READ(OGAMC2);
@@ -1270,7 +1270,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
 		update_reg_attrs(overlay, overlay->regs);
 
 		if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) {
-			if (IS_GEN2(dev_priv))
+			if (IS_GEN(dev_priv, 2))
 				goto out_unlock;
 
 			if (overlay->active) {
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index e6cd7b55c018..ee3e0842d542 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -563,7 +563,7 @@ static void i9xx_set_backlight(const struct drm_connector_state *conn_state, u32
 		pci_write_config_byte(dev_priv->drm.pdev, LBPC, lbpc);
 	}
 
-	if (IS_GEN4(dev_priv)) {
+	if (IS_GEN(dev_priv, 4)) {
 		mask = BACKLIGHT_DUTY_CYCLE_MASK;
 	} else {
 		level <<= 1;
@@ -929,7 +929,7 @@ static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
 	 * 855gm only, but checking for gen2 is safe, as 855gm is the only gen2
 	 * that has backlight.
 	 */
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		I915_WRITE(BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
 }
 
@@ -1557,7 +1557,7 @@ static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe unu
 
 	ctl = I915_READ(BLC_PWM_CTL);
 
-	if (IS_GEN2(dev_priv) || IS_I915GM(dev_priv) || IS_I945GM(dev_priv))
+	if (IS_GEN(dev_priv, 2) || IS_I915GM(dev_priv) || IS_I945GM(dev_priv))
 		panel->backlight.combination_mode = ctl & BLM_LEGACY_MODE;
 
 	if (IS_PINEVIEW(dev_priv))
@@ -1886,7 +1886,7 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
 			panel->backlight.get = vlv_get_backlight;
 			panel->backlight.hz_to_pwm = vlv_hz_to_pwm;
 		}
-	} else if (IS_GEN4(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 4)) {
 		panel->backlight.setup = i965_setup_backlight;
 		panel->backlight.enable = i965_enable_backlight;
 		panel->backlight.disable = i965_disable_backlight;
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index f3c9010e332a..9e870caf8104 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -427,13 +427,13 @@ static int get_new_crc_ctl_reg(struct drm_i915_private *dev_priv,
 			       enum intel_pipe_crc_source *source, u32 *val,
 			       bool set_wa)
 {
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		return i8xx_pipe_crc_ctl_reg(source, val);
 	else if (INTEL_GEN(dev_priv) < 5)
 		return i9xx_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
 	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		return vlv_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
-	else if (IS_GEN5(dev_priv) || IS_GEN6(dev_priv))
+	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
 		return ilk_pipe_crc_ctl_reg(source, val);
 	else
 		return ivb_pipe_crc_ctl_reg(dev_priv, pipe, source, val, set_wa);
@@ -544,13 +544,13 @@ static int
 intel_is_valid_crc_source(struct drm_i915_private *dev_priv,
 			  const enum intel_pipe_crc_source source)
 {
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		return i8xx_crc_source_valid(dev_priv, source);
 	else if (INTEL_GEN(dev_priv) < 5)
 		return i9xx_crc_source_valid(dev_priv, source);
 	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		return vlv_crc_source_valid(dev_priv, source);
-	else if (IS_GEN5(dev_priv) || IS_GEN6(dev_priv))
+	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
 		return ilk_crc_source_valid(dev_priv, source);
 	else
 		return ivb_crc_source_valid(dev_priv, source);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a6c7c11d2c0e..b11fac679e10 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2271,7 +2271,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 
 	if (IS_I945GM(dev_priv))
 		wm_info = &i945_wm_info;
-	else if (!IS_GEN2(dev_priv))
+	else if (!IS_GEN(dev_priv, 2))
 		wm_info = &i915_wm_info;
 	else
 		wm_info = &i830_a_wm_info;
@@ -2285,7 +2285,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 			crtc->base.primary->state->fb;
 		int cpp;
 
-		if (IS_GEN2(dev_priv))
+		if (IS_GEN(dev_priv, 2))
 			cpp = 4;
 		else
 			cpp = fb->format->cpp[0];
@@ -2300,7 +2300,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 			planea_wm = wm_info->max_wm;
 	}
 
-	if (IS_GEN2(dev_priv))
+	if (IS_GEN(dev_priv, 2))
 		wm_info = &i830_bc_wm_info;
 
 	fifo_size = dev_priv->display.get_fifo_size(dev_priv, PLANE_B);
@@ -2312,7 +2312,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 			crtc->base.primary->state->fb;
 		int cpp;
 
-		if (IS_GEN2(dev_priv))
+		if (IS_GEN(dev_priv, 2))
 			cpp = 4;
 		else
 			cpp = fb->format->cpp[0];
@@ -2923,7 +2923,7 @@ static void intel_fixup_spr_wm_latency(struct drm_i915_private *dev_priv,
 				       uint16_t wm[5])
 {
 	/* ILK sprite LP0 latency is 1300 ns */
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		wm[0] = 13;
 }
 
@@ -2931,7 +2931,7 @@ static void intel_fixup_cur_wm_latency(struct drm_i915_private *dev_priv,
 				       uint16_t wm[5])
 {
 	/* ILK cursor LP0 latency is 1300 ns */
-	if (IS_GEN5(dev_priv))
+	if (IS_GEN(dev_priv, 5))
 		wm[0] = 13;
 }
 
@@ -3058,7 +3058,7 @@ static void ilk_setup_wm_latency(struct drm_i915_private *dev_priv)
 	intel_print_wm_latency(dev_priv, "Sprite", dev_priv->wm.spr_latency);
 	intel_print_wm_latency(dev_priv, "Cursor", dev_priv->wm.cur_latency);
 
-	if (IS_GEN6(dev_priv)) {
+	if (IS_GEN(dev_priv, 6)) {
 		snb_wm_latency_quirk(dev_priv);
 		snb_wm_lp3_irq_quirk(dev_priv);
 	}
@@ -3314,7 +3314,7 @@ static void ilk_wm_merge(struct drm_i915_private *dev_priv,
 	 * What we should check here is whether FBC can be
 	 * enabled sometime later.
 	 */
-	if (IS_GEN5(dev_priv) && !merged->fbc_wm_enabled &&
+	if (IS_GEN(dev_priv, 5) && !merged->fbc_wm_enabled &&
 	    intel_fbc_is_active(dev_priv)) {
 		for (level = 2; level <= max_level; level++) {
 			struct intel_wm_level *wm = &merged->wm[level];
@@ -3751,9 +3751,9 @@ bool intel_can_enable_sagv(struct drm_atomic_state *state)
 	if (!intel_has_sagv(dev_priv))
 		return false;
 
-	if (IS_GEN9(dev_priv))
+	if (IS_GEN(dev_priv, 9))
 		sagv_block_time_us = 30;
-	else if (IS_GEN10(dev_priv))
+	else if (IS_GEN(dev_priv, 10))
 		sagv_block_time_us = 20;
 	else
 		sagv_block_time_us = 10;
@@ -4657,7 +4657,7 @@ skl_compute_plane_wm_params(const struct intel_crtc_state *cstate,
 
 		wp->plane_blocks_per_line = div_fixed16(interm_pbpl,
 							wp->y_min_scanlines);
-	} else if (wp->x_tiled && IS_GEN9(dev_priv)) {
+	} else if (wp->x_tiled && IS_GEN(dev_priv, 9)) {
 		interm_pbpl = DIV_ROUND_UP(wp->plane_bytes_per_line,
 					   wp->dbuf_block_size);
 		wp->plane_blocks_per_line = u32_to_fixed16(interm_pbpl);
@@ -4716,7 +4716,7 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *cstate,
 		     (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) {
 			selected_result = method2;
 		} else if (latency >= wp->linetime_us) {
-			if (IS_GEN9(dev_priv) &&
+			if (IS_GEN(dev_priv, 9) &&
 			    !IS_GEMINILAKE(dev_priv))
 				selected_result = min_fixed16(method1, method2);
 			else
@@ -6908,7 +6908,7 @@ static void gen9_enable_rps(struct drm_i915_private *dev_priv)
 	intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
 
 	/* Program defaults and thresholds for RPS */
-	if (IS_GEN9(dev_priv))
+	if (IS_GEN(dev_priv, 9))
 		I915_WRITE(GEN6_RC_VIDEO_FREQ,
 			GEN9_FREQUENCY(dev_priv->gt_pm.rps.rp1_freq));
 
@@ -7144,9 +7144,9 @@ static void gen6_enable_rc6(struct drm_i915_private *dev_priv)
 
 	rc6vids = 0;
 	ret = sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
-	if (IS_GEN6(dev_priv) && ret) {
+	if (IS_GEN(dev_priv, 6) && ret) {
 		DRM_DEBUG_DRIVER("Couldn't check for BIOS workaround\n");
-	} else if (IS_GEN6(dev_priv) && (GEN6_DECODE_RC6_VID(rc6vids & 0xff) < 450)) {
+	} else if (IS_GEN(dev_priv, 6) && (GEN6_DECODE_RC6_VID(rc6vids & 0xff) < 450)) {
 		DRM_DEBUG_DRIVER("You should update your BIOS. Correcting minimum rc6 voltage (%dmV->%dmV)\n",
 			  GEN6_DECODE_RC6_VID(rc6vids & 0xff), 450);
 		rc6vids &= 0xffff00;
@@ -7846,7 +7846,7 @@ unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
 {
 	unsigned long val;
 
-	if (!IS_GEN5(dev_priv))
+	if (!IS_GEN(dev_priv, 5))
 		return 0;
 
 	spin_lock_irq(&mchdev_lock);
@@ -7930,7 +7930,7 @@ static void __i915_update_gfx_val(struct drm_i915_private *dev_priv)
 
 void i915_update_gfx_val(struct drm_i915_private *dev_priv)
 {
-	if (!IS_GEN5(dev_priv))
+	if (!IS_GEN(dev_priv, 5))
 		return;
 
 	spin_lock_irq(&mchdev_lock);
@@ -7981,7 +7981,7 @@ unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
 {
 	unsigned long val;
 
-	if (!IS_GEN5(dev_priv))
+	if (!IS_GEN(dev_priv, 5))
 		return 0;
 
 	spin_lock_irq(&mchdev_lock);
@@ -8269,7 +8269,7 @@ void intel_init_gt_powersave(struct drm_i915_private *dev_priv)
 			      intel_freq_opcode(dev_priv, 450));
 
 	/* After setting max-softlimit, find the overclock max freq */
-	if (IS_GEN6(dev_priv) ||
+	if (IS_GEN(dev_priv, 6) ||
 	    IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv)) {
 		u32 params = 0;
 
@@ -9339,9 +9339,9 @@ void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
 		dev_priv->display.init_clock_gating = ivb_init_clock_gating;
 	else if (IS_VALLEYVIEW(dev_priv))
 		dev_priv->display.init_clock_gating = vlv_init_clock_gating;
-	else if (IS_GEN6(dev_priv))
+	else if (IS_GEN(dev_priv, 6))
 		dev_priv->display.init_clock_gating = gen6_init_clock_gating;
-	else if (IS_GEN5(dev_priv))
+	else if (IS_GEN(dev_priv, 5))
 		dev_priv->display.init_clock_gating = ilk_init_clock_gating;
 	else if (IS_G4X(dev_priv))
 		dev_priv->display.init_clock_gating = g4x_init_clock_gating;
@@ -9349,11 +9349,11 @@ void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
 		dev_priv->display.init_clock_gating = i965gm_init_clock_gating;
 	else if (IS_I965G(dev_priv))
 		dev_priv->display.init_clock_gating = i965g_init_clock_gating;
-	else if (IS_GEN3(dev_priv))
+	else if (IS_GEN(dev_priv, 3))
 		dev_priv->display.init_clock_gating = gen3_init_clock_gating;
 	else if (IS_I85X(dev_priv) || IS_I865G(dev_priv))
 		dev_priv->display.init_clock_gating = i85x_init_clock_gating;
-	else if (IS_GEN2(dev_priv))
+	else if (IS_GEN(dev_priv, 2))
 		dev_priv->display.init_clock_gating = i830_init_clock_gating;
 	else {
 		MISSING_CASE(INTEL_DEVID(dev_priv));
@@ -9367,7 +9367,7 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
 	/* For cxsr */
 	if (IS_PINEVIEW(dev_priv))
 		i915_pineview_get_mem_freq(dev_priv);
-	else if (IS_GEN5(dev_priv))
+	else if (IS_GEN(dev_priv, 5))
 		i915_ironlake_get_mem_freq(dev_priv);
 
 	/* For FIFO watermark updates */
@@ -9379,9 +9379,9 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
 	} else if (HAS_PCH_SPLIT(dev_priv)) {
 		ilk_setup_wm_latency(dev_priv);
 
-		if ((IS_GEN5(dev_priv) && dev_priv->wm.pri_latency[1] &&
+		if ((IS_GEN(dev_priv, 5) && dev_priv->wm.pri_latency[1] &&
 		     dev_priv->wm.spr_latency[1] && dev_priv->wm.cur_latency[1]) ||
-		    (!IS_GEN5(dev_priv) && dev_priv->wm.pri_latency[0] &&
+		    (!IS_GEN(dev_priv, 5) && dev_priv->wm.pri_latency[0] &&
 		     dev_priv->wm.spr_latency[0] && dev_priv->wm.cur_latency[0])) {
 			dev_priv->display.compute_pipe_wm = ilk_compute_pipe_wm;
 			dev_priv->display.compute_intermediate_wm =
@@ -9422,12 +9422,12 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
 			dev_priv->display.update_wm = NULL;
 		} else
 			dev_priv->display.update_wm = pineview_update_wm;
-	} else if (IS_GEN4(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 4)) {
 		dev_priv->display.update_wm = i965_update_wm;
-	} else if (IS_GEN3(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 3)) {
 		dev_priv->display.update_wm = i9xx_update_wm;
 		dev_priv->display.get_fifo_size = i9xx_get_fifo_size;
-	} else if (IS_GEN2(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 2)) {
 		if (INTEL_INFO(dev_priv)->num_pipes == 1) {
 			dev_priv->display.update_wm = i845_update_wm;
 			dev_priv->display.get_fifo_size = i845_get_fifo_size;
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 4c4dd1c310ce..dce39f06b682 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -552,7 +552,7 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
 		psr_max_h = 4096;
 		psr_max_v = 2304;
-	} else if (IS_GEN9(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 9)) {
 		psr_max_h = 3640;
 		psr_max_v = 2304;
 	}
@@ -686,7 +686,7 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 		hsw_psr_setup_aux(intel_dp);
 
-	if (dev_priv->psr.psr2_enabled && (IS_GEN9(dev_priv) &&
+	if (dev_priv->psr.psr2_enabled && (IS_GEN(dev_priv, 9) &&
 					   !IS_GEMINILAKE(dev_priv))) {
 		i915_reg_t reg = gen9_chicken_trans_reg(dev_priv,
 							cpu_transcoder);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 720c11e0acd1..fdeca2b877c9 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -133,7 +133,7 @@ gen4_render_ring_flush(struct i915_request *rq, u32 mode)
 	cmd = MI_FLUSH;
 	if (mode & EMIT_INVALIDATE) {
 		cmd |= MI_EXE_FLUSH;
-		if (IS_G4X(rq->i915) || IS_GEN5(rq->i915))
+		if (IS_G4X(rq->i915) || IS_GEN(rq->i915, 5))
 			cmd |= MI_INVALIDATE_ISP;
 	}
 
@@ -401,7 +401,7 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *engine)
 	/* The ring status page addresses are no longer next to the rest of
 	 * the ring registers as of gen7.
 	 */
-	if (IS_GEN7(dev_priv)) {
+	if (IS_GEN(dev_priv, 7)) {
 		switch (engine->id) {
 		/*
 		 * No more rings exist on Gen7. Default case is only to shut up
@@ -422,7 +422,7 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *engine)
 			mmio = VEBOX_HWS_PGA_GEN7;
 			break;
 		}
-	} else if (IS_GEN6(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 6)) {
 		mmio = RING_HWS_PGA_GEN6(engine->mmio_base);
 	} else {
 		mmio = RING_HWS_PGA(engine->mmio_base);
@@ -693,17 +693,17 @@ static int init_render_ring(struct intel_engine_cs *engine)
 
 	/* Required for the hardware to program scanline values for waiting */
 	/* WaEnableFlushTlbInvalidationMode:snb */
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		I915_WRITE(GFX_MODE,
 			   _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT));
 
 	/* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */
-	if (IS_GEN7(dev_priv))
+	if (IS_GEN(dev_priv, 7))
 		I915_WRITE(GFX_MODE_GEN7,
 			   _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT) |
 			   _MASKED_BIT_ENABLE(GFX_REPLAY_MODE));
 
-	if (IS_GEN6(dev_priv)) {
+	if (IS_GEN(dev_priv, 6)) {
 		/* From the Sandybridge PRM, volume 1 part 3, page 24:
 		 * "If this bit is set, STCunit will have LRA as replacement
 		 *  policy. [...] This bit must be reset.  LRA replacement
@@ -1582,7 +1582,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 	enum intel_engine_id id;
 	const int num_rings =
 		/* Use an extended w/a on gen7 if signalling from other rings */
-		(HAS_LEGACY_SEMAPHORES(i915) && IS_GEN7(i915)) ?
+		(HAS_LEGACY_SEMAPHORES(i915) && IS_GEN(i915, 7)) ?
 		INTEL_INFO(i915)->num_rings - 1 :
 		0;
 	bool force_restore = false;
@@ -1597,7 +1597,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 		flags |= MI_SAVE_EXT_STATE_EN | MI_RESTORE_EXT_STATE_EN;
 
 	len = 4;
-	if (IS_GEN7(i915))
+	if (IS_GEN(i915, 7))
 		len += 2 + (num_rings ? 4*num_rings + 6 : 0);
 	if (flags & MI_FORCE_RESTORE) {
 		GEM_BUG_ON(flags & MI_RESTORE_INHIBIT);
@@ -1611,7 +1611,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 		return PTR_ERR(cs);
 
 	/* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw,bdw,chv */
-	if (IS_GEN7(i915)) {
+	if (IS_GEN(i915, 7)) {
 		*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
 		if (num_rings) {
 			struct intel_engine_cs *signaller;
@@ -1658,7 +1658,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 	 */
 	*cs++ = MI_NOOP;
 
-	if (IS_GEN7(i915)) {
+	if (IS_GEN(i915, 7)) {
 		if (num_rings) {
 			struct intel_engine_cs *signaller;
 			i915_reg_t last_reg = {}; /* keep gcc quiet */
@@ -2283,9 +2283,9 @@ int intel_init_render_ring_buffer(struct intel_engine_cs *engine)
 	if (INTEL_GEN(dev_priv) >= 6) {
 		engine->init_context = intel_rcs_ctx_init;
 		engine->emit_flush = gen7_render_ring_flush;
-		if (IS_GEN6(dev_priv))
+		if (IS_GEN(dev_priv, 6))
 			engine->emit_flush = gen6_render_ring_flush;
-	} else if (IS_GEN5(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 5)) {
 		engine->emit_flush = gen4_render_ring_flush;
 	} else {
 		if (INTEL_GEN(dev_priv) < 4)
@@ -2315,13 +2315,13 @@ int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine)
 
 	if (INTEL_GEN(dev_priv) >= 6) {
 		/* gen6 bsd needs a special wa for tail updates */
-		if (IS_GEN6(dev_priv))
+		if (IS_GEN(dev_priv, 6))
 			engine->set_default_submission = gen6_bsd_set_default_submission;
 		engine->emit_flush = gen6_bsd_ring_flush;
 		engine->irq_enable_mask = GT_BSD_USER_INTERRUPT;
 	} else {
 		engine->emit_flush = bsd_ring_flush;
-		if (IS_GEN5(dev_priv))
+		if (IS_GEN(dev_priv, 5))
 			engine->irq_enable_mask = ILK_BSD_USER_INTERRUPT;
 		else
 			engine->irq_enable_mask = I915_BSD_USER_INTERRUPT;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 72edaa7ff411..1ae74e579386 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -94,11 +94,11 @@ hangcheck_action_to_str(const enum intel_engine_hangcheck_action a)
 #define I915_MAX_SUBSLICES 8
 
 #define instdone_slice_mask(dev_priv__) \
-	(IS_GEN7(dev_priv__) ? \
+	(IS_GEN(dev_priv__, 7) ? \
 	 1 : INTEL_INFO(dev_priv__)->sseu.slice_mask)
 
 #define instdone_subslice_mask(dev_priv__) \
-	(IS_GEN7(dev_priv__) ? \
+	(IS_GEN(dev_priv__, 7) ? \
 	 1 : INTEL_INFO(dev_priv__)->sseu.subslice_mask[0])
 
 #define for_each_instdone_slice_subslice(dev_priv__, slice__, subslice__) \
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 4350a5270423..9e9501f82f06 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -509,7 +509,7 @@ static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv,
 	 * BIOS's own request bits, which are forced-on for these power wells
 	 * when exiting DC5/6.
 	 */
-	if (IS_GEN9(dev_priv) && !IS_GEN9_LP(dev_priv) &&
+	if (IS_GEN(dev_priv, 9) && !IS_GEN9_LP(dev_priv) &&
 	    (id == SKL_DISP_PW_1 || id == SKL_DISP_PW_MISC_IO))
 		val |= I915_READ(regs->bios);
 
@@ -3058,7 +3058,7 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
 		 * suspend/resume, so allow it unconditionally.
 		 */
 		mask = DC_STATE_EN_DC9;
-	} else if (IS_GEN10(dev_priv) || IS_GEN9_BC(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 10) || IS_GEN9_BC(dev_priv)) {
 		max_dc = 2;
 		mask = 0;
 	} else if (IS_GEN9_LP(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index d2e003d8f3db..f70d2c607902 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1087,7 +1087,7 @@ static u32 g4x_sprite_ctl(const struct intel_crtc_state *crtc_state,
 
 	dvscntr = DVS_ENABLE | DVS_GAMMA_ENABLE;
 
-	if (IS_GEN6(dev_priv))
+	if (IS_GEN(dev_priv, 6))
 		dvscntr |= DVS_TRICKLE_FEED_DISABLE;
 
 	switch (fb->format->format) {
@@ -1983,7 +1983,7 @@ static bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
 	if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
 		return false;
 
-	if (IS_GEN9(dev_priv) && !IS_GEMINILAKE(dev_priv) && pipe == PIPE_C)
+	if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv) && pipe == PIPE_C)
 		return false;
 
 	if (plane_id != PLANE_PRIMARY && plane_id != PLANE_SPRITE0)
@@ -2163,7 +2163,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
 		plane->check_plane = g4x_sprite_check;
 
 		modifiers = i9xx_plane_format_modifiers;
-		if (IS_GEN6(dev_priv)) {
+		if (IS_GEN(dev_priv, 6)) {
 			formats = snb_plane_formats;
 			num_formats = ARRAY_SIZE(snb_plane_formats);
 
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index b34c318b238d..447b1de77cc7 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -354,7 +354,7 @@ int intel_uc_init_hw(struct drm_i915_private *i915)
 
 	/* WaEnableuKernelHeaderValidFix:skl */
 	/* WaEnableGuCBootHashCheckNotSet:skl,bxt,kbl */
-	if (IS_GEN9(i915))
+	if (IS_GEN(i915, 9))
 		attempts = 3;
 	else
 		attempts = 1;
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 631b4165fe00..c6eb053a8fad 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -528,7 +528,7 @@ check_for_unclaimed_mmio(struct drm_i915_private *dev_priv)
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		ret |= vlv_check_for_unclaimed_mmio(dev_priv);
 
-	if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv))
+	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7))
 		ret |= gen6_check_for_fifo_debug(dev_priv);
 
 	return ret;
@@ -556,7 +556,7 @@ static void __intel_uncore_early_sanitize(struct drm_i915_private *dev_priv,
 		dev_priv->uncore.funcs.force_wake_get(dev_priv,
 						      restore_forcewake);
 
-		if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv))
+		if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7))
 			dev_priv->uncore.fifo_count =
 				fifo_free_entries(dev_priv);
 		spin_unlock_irq(&dev_priv->uncore.lock);
@@ -1398,7 +1398,7 @@ static void intel_uncore_fw_domains_init(struct drm_i915_private *dev_priv)
 	if (INTEL_GEN(dev_priv) <= 5 || intel_vgpu_active(dev_priv))
 		return;
 
-	if (IS_GEN6(dev_priv)) {
+	if (IS_GEN(dev_priv, 6)) {
 		dev_priv->uncore.fw_reset = 0;
 		dev_priv->uncore.fw_set = FORCEWAKE_KERNEL;
 		dev_priv->uncore.fw_clear = 0;
@@ -1437,7 +1437,7 @@ static void intel_uncore_fw_domains_init(struct drm_i915_private *dev_priv)
 				       FORCEWAKE_MEDIA_VEBOX_GEN11(i),
 				       FORCEWAKE_ACK_MEDIA_VEBOX_GEN11(i));
 		}
-	} else if (IS_GEN10(dev_priv) || IS_GEN9(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 10) || IS_GEN(dev_priv, 9)) {
 		dev_priv->uncore.funcs.force_wake_get =
 			fw_domains_get_with_fallback;
 		dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
@@ -1503,7 +1503,7 @@ static void intel_uncore_fw_domains_init(struct drm_i915_private *dev_priv)
 			fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER,
 				       FORCEWAKE, FORCEWAKE_ACK);
 		}
-	} else if (IS_GEN6(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 6)) {
 		dev_priv->uncore.funcs.force_wake_get =
 			fw_domains_get_with_thread_status;
 		dev_priv->uncore.funcs.force_wake_put = fw_domains_put;
@@ -1570,7 +1570,7 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 	if (IS_GEN_RANGE(dev_priv, 2, 4) || intel_vgpu_active(dev_priv)) {
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen2);
 		ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen2);
-	} else if (IS_GEN5(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 5)) {
 		ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, gen5);
 		ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen5);
 	} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
@@ -1582,7 +1582,7 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 		} else {
 			ASSIGN_READ_MMIO_VFUNCS(dev_priv, gen6);
 		}
-	} else if (IS_GEN8(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 8)) {
 		if (IS_CHERRYVIEW(dev_priv)) {
 			ASSIGN_FW_DOMAINS_TABLE(__chv_fw_ranges);
 			ASSIGN_WRITE_MMIO_VFUNCS(dev_priv, fwtable);
@@ -2173,7 +2173,7 @@ static reset_func intel_get_gpu_reset(struct drm_i915_private *dev_priv)
 		return gen8_reset_engines;
 	else if (INTEL_GEN(dev_priv) >= 6)
 		return gen6_reset_engines;
-	else if (IS_GEN5(dev_priv))
+	else if (IS_GEN(dev_priv, 5))
 		return ironlake_do_reset;
 	else if (IS_G4X(dev_priv))
 		return g4x_do_reset;
@@ -2341,7 +2341,7 @@ intel_uncore_forcewake_for_write(struct drm_i915_private *dev_priv,
 		fw_domains = __gen11_fwtable_reg_write_fw_domains(offset);
 	} else if (HAS_FWTABLE(dev_priv) && !IS_VALLEYVIEW(dev_priv)) {
 		fw_domains = __fwtable_reg_write_fw_domains(offset);
-	} else if (IS_GEN8(dev_priv)) {
+	} else if (IS_GEN(dev_priv, 8)) {
 		fw_domains = __gen8_reg_write_fw_domains(offset);
 	} else if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		fw_domains = FORCEWAKE_RENDER;
diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 92cb82dd0c07..630c887682e8 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.c
+++ b/drivers/gpu/drm/i915/intel_wopcm.c
@@ -130,11 +130,11 @@ static inline int check_hw_restriction(struct drm_i915_private *i915,
 {
 	int err = 0;
 
-	if (IS_GEN9(i915))
+	if (IS_GEN(i915, 9))
 		err = gen9_check_dword_gap(guc_wopcm_base, guc_wopcm_size);
 
 	if (!err &&
-	    (IS_GEN9(i915) || IS_CNL_REVID(i915, CNL_REVID_A0, CNL_REVID_A0)))
+	    (IS_GEN(i915, 9) || IS_CNL_REVID(i915, CNL_REVID_A0, CNL_REVID_A0)))
 		err = gen9_check_huc_fw_fits(guc_wopcm_size, huc_fw_size);
 
 	return err;
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 6bcac78a9c36..7a8618065491 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -1186,7 +1186,7 @@ static void rcs_engine_wa_init(struct intel_engine_cs *engine)
 				    GEN7_DISABLE_SAMPLER_PREFETCH);
 	}
 
-	if (IS_GEN9(i915) || IS_CANNONLAKE(i915)) {
+	if (IS_GEN(i915, 9) || IS_CANNONLAKE(i915)) {
 		/* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl,cnl */
 		wa_masked_en(wal,
 			     GEN7_FF_SLICE_CS_CHICKEN1,
@@ -1207,7 +1207,7 @@ static void rcs_engine_wa_init(struct intel_engine_cs *engine)
 			     GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE);
 	}
 
-	if (IS_GEN9(i915)) {
+	if (IS_GEN(i915, 9)) {
 		/* WaContextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl,glk,cfl */
 		wa_masked_en(wal,
 			     GEN9_CSFE_CHICKEN1_RCS,

From f3ce44a09a15848c7b3e07c9a937e0562f681489 Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Wed, 12 Dec 2018 10:10:44 -0800
Subject: [PATCH 041/118] drm/i915: merge gen checks to use range

Instead of using IS_GEN() for consecutive gen checks, let's pass the
range to IS_GEN_RANGE(). By code inspection these were the ranges deemed
necessary for spatch:

@@
expression e;
@@
(
- IS_GEN(e, 3) || IS_GEN(e, 2)
+ IS_GEN_RANGE(e, 2, 3)
|
- IS_GEN(e, 3) || IS_GEN(e, 4)
+ IS_GEN_RANGE(e, 3, 4)
|
- IS_GEN(e, 5) || IS_GEN(e, 6)
+ IS_GEN_RANGE(e, 5, 6)
|
- IS_GEN(e, 6) || IS_GEN(e, 7)
+ IS_GEN_RANGE(e, 6, 7)
|
- IS_GEN(e, 7) || IS_GEN(e, 8)
+ IS_GEN_RANGE(e, 7, 8)
|
- IS_GEN(e, 8) || IS_GEN(e, 9)
+ IS_GEN_RANGE(e, 8, 9)
|
- IS_GEN(e, 10) || IS_GEN(e, 9)
+ IS_GEN_RANGE(e, 9, 10)
|
- IS_GEN(e, 9) || IS_GEN(e, 10)
+ IS_GEN_RANGE(e, 9, 10)
)

After conversion, checking we don't have any missing IS_GEN_RANGE() ||
IS_GEN() was also done.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212181044.15886-3-lucas.demarchi@intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c        | 6 +++---
 drivers/gpu/drm/i915/i915_gpu_error.c      | 2 +-
 drivers/gpu/drm/i915/i915_perf.c           | 2 +-
 drivers/gpu/drm/i915/intel_crt.c           | 2 +-
 drivers/gpu/drm/i915/intel_device_info.c   | 2 +-
 drivers/gpu/drm/i915/intel_display.c       | 2 +-
 drivers/gpu/drm/i915/intel_engine_cs.c     | 2 +-
 drivers/gpu/drm/i915/intel_fifo_underrun.c | 2 +-
 drivers/gpu/drm/i915/intel_pipe_crc.c      | 4 ++--
 drivers/gpu/drm/i915/intel_uncore.c        | 6 +++---
 10 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 2b52c91113b3..ed44e30f875e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2040,7 +2040,7 @@ static int i915_swizzle_info(struct seq_file *m, void *data)
 	seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
 		   swizzle_string(dev_priv->mm.bit_6_swizzle_y));
 
-	if (IS_GEN(dev_priv, 3) || IS_GEN(dev_priv, 4)) {
+	if (IS_GEN_RANGE(dev_priv, 3, 4)) {
 		seq_printf(m, "DDC = 0x%08x\n",
 			   I915_READ(DCC));
 		seq_printf(m, "DDC2 = 0x%08x\n",
@@ -4274,7 +4274,7 @@ i915_cache_sharing_get(void *data, u64 *val)
 	struct drm_i915_private *dev_priv = data;
 	u32 snpcr;
 
-	if (!(IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)))
+	if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
 		return -ENODEV;
 
 	intel_runtime_pm_get(dev_priv);
@@ -4294,7 +4294,7 @@ i915_cache_sharing_set(void *data, u64 val)
 	struct drm_i915_private *dev_priv = data;
 	u32 snpcr;
 
-	if (!(IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)))
+	if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
 		return -ENODEV;
 
 	if (val > 3)
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 4477631d2636..63df41d93379 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1753,7 +1753,7 @@ static void capture_reg_state(struct i915_gpu_state *error)
 		error->ccid = I915_READ(CCID);
 
 	/* 3: Feature specific registers */
-	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)) {
+	if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		error->gam_ecochk = I915_READ(GAM_ECOCHK);
 		error->gac_eco = I915_READ(GAC_ECO_BITS);
 	}
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 6c7992320443..4288c0e02f0c 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3415,7 +3415,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 		dev_priv->perf.oa.ops.read = gen8_oa_read;
 		dev_priv->perf.oa.ops.oa_hw_tail_read = gen8_oa_hw_tail_read;
 
-		if (IS_GEN(dev_priv, 8) || IS_GEN(dev_priv, 9)) {
+		if (IS_GEN_RANGE(dev_priv, 8, 9)) {
 			dev_priv->perf.oa.ops.is_valid_b_counter_reg =
 				gen7_is_valid_b_counter_addr;
 			dev_priv->perf.oa.ops.is_valid_mux_reg =
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index bf4fd739b68c..0a41e58d61de 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -322,7 +322,7 @@ intel_crt_mode_valid(struct drm_connector *connector,
 		 * DAC limit supposedly 355 MHz.
 		 */
 		max_clock = 270000;
-	else if (IS_GEN(dev_priv, 3) || IS_GEN(dev_priv, 4))
+	else if (IS_GEN_RANGE(dev_priv, 3, 4))
 		max_clock = 400000;
 	else
 		max_clock = 350000;
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 8627b9a6bff4..eccb30a68b10 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -787,7 +787,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 		DRM_INFO("Display disabled (module parameter)\n");
 		info->num_pipes = 0;
 	} else if (HAS_DISPLAY(dev_priv) &&
-		   (IS_GEN(dev_priv, 7) || IS_GEN(dev_priv, 8)) &&
+		   (IS_GEN_RANGE(dev_priv, 7, 8)) &&
 		   HAS_PCH_SPLIT(dev_priv)) {
 		u32 fuse_strap = I915_READ(FUSE_STRAP);
 		u32 sfuse_strap = I915_READ(SFUSE_STRAP);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b9e8a9898983..2c3f3f68d506 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10815,7 +10815,7 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat
 	 * the w/a on all three platforms.
 	 */
 	if (plane->id == PLANE_SPRITE0 &&
-	    (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6) ||
+	    (IS_GEN_RANGE(dev_priv, 5, 6) ||
 	     IS_IVYBRIDGE(dev_priv)) &&
 	    (turn_on || (!needs_scaling(old_plane_state) &&
 			 needs_scaling(to_intel_plane_state(plane_state)))))
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 8ff794db7881..66d0ad9c36c4 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -438,7 +438,7 @@ void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno)
 	 * the semaphore value, then when the seqno moves backwards all
 	 * future waits will complete instantly (causing rendering corruption).
 	 */
-	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7)) {
+	if (IS_GEN_RANGE(dev_priv, 6, 7)) {
 		I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
 		I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
 		if (HAS_VEBOX(dev_priv))
diff --git a/drivers/gpu/drm/i915/intel_fifo_underrun.c b/drivers/gpu/drm/i915/intel_fifo_underrun.c
index ff2743ccbece..9b39975c8389 100644
--- a/drivers/gpu/drm/i915/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c
@@ -260,7 +260,7 @@ static bool __intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 
 	if (HAS_GMCH_DISPLAY(dev_priv))
 		i9xx_set_fifo_underrun_reporting(dev, pipe, enable, old);
-	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
+	else if (IS_GEN_RANGE(dev_priv, 5, 6))
 		ironlake_set_fifo_underrun_reporting(dev, pipe, enable);
 	else if (IS_GEN(dev_priv, 7))
 		ivybridge_set_fifo_underrun_reporting(dev, pipe, enable, old);
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 9e870caf8104..bdabcfab8090 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -433,7 +433,7 @@ static int get_new_crc_ctl_reg(struct drm_i915_private *dev_priv,
 		return i9xx_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
 	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		return vlv_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
-	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
+	else if (IS_GEN_RANGE(dev_priv, 5, 6))
 		return ilk_pipe_crc_ctl_reg(source, val);
 	else
 		return ivb_pipe_crc_ctl_reg(dev_priv, pipe, source, val, set_wa);
@@ -550,7 +550,7 @@ intel_is_valid_crc_source(struct drm_i915_private *dev_priv,
 		return i9xx_crc_source_valid(dev_priv, source);
 	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		return vlv_crc_source_valid(dev_priv, source);
-	else if (IS_GEN(dev_priv, 5) || IS_GEN(dev_priv, 6))
+	else if (IS_GEN_RANGE(dev_priv, 5, 6))
 		return ilk_crc_source_valid(dev_priv, source);
 	else
 		return ivb_crc_source_valid(dev_priv, source);
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index c6eb053a8fad..ec6dde2e59eb 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -528,7 +528,7 @@ check_for_unclaimed_mmio(struct drm_i915_private *dev_priv)
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		ret |= vlv_check_for_unclaimed_mmio(dev_priv);
 
-	if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7))
+	if (IS_GEN_RANGE(dev_priv, 6, 7))
 		ret |= gen6_check_for_fifo_debug(dev_priv);
 
 	return ret;
@@ -556,7 +556,7 @@ static void __intel_uncore_early_sanitize(struct drm_i915_private *dev_priv,
 		dev_priv->uncore.funcs.force_wake_get(dev_priv,
 						      restore_forcewake);
 
-		if (IS_GEN(dev_priv, 6) || IS_GEN(dev_priv, 7))
+		if (IS_GEN_RANGE(dev_priv, 6, 7))
 			dev_priv->uncore.fifo_count =
 				fifo_free_entries(dev_priv);
 		spin_unlock_irq(&dev_priv->uncore.lock);
@@ -1437,7 +1437,7 @@ static void intel_uncore_fw_domains_init(struct drm_i915_private *dev_priv)
 				       FORCEWAKE_MEDIA_VEBOX_GEN11(i),
 				       FORCEWAKE_ACK_MEDIA_VEBOX_GEN11(i));
 		}
-	} else if (IS_GEN(dev_priv, 10) || IS_GEN(dev_priv, 9)) {
+	} else if (IS_GEN_RANGE(dev_priv, 9, 10)) {
 		dev_priv->uncore.funcs.force_wake_get =
 			fw_domains_get_with_fallback;
 		dev_priv->uncore.funcs.force_wake_put = fw_domains_put;

From 5edd56d394dc30438cb627586eb471f5f339a603 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 13 Dec 2018 09:15:19 +0000
Subject: [PATCH 042/118] drm/i915/selftests: Check we can recover a wedged
 device

After declaring a terminally wedged device, we allow ourselves to
recover on the next GPU reset (manually triggered), or resume. Check
that resetting a wedged device does work.

v2: Add rpm (taken explicitly in the subtest in case we remove the outer
wakeref) and early warning to i915_reset() for missed wakerefs

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213091522.2926-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_drv.c               |  1 +
 .../gpu/drm/i915/selftests/intel_hangcheck.c  | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 77c0f97fe77c..caa055ac9472 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2226,6 +2226,7 @@ void i915_reset(struct drm_i915_private *i915,
 
 	might_sleep();
 	lockdep_assert_held(&i915->drm.struct_mutex);
+	assert_rpm_wakelock_held(i915);
 	GEM_BUG_ON(!test_bit(I915_RESET_BACKOFF, &error->flags));
 
 	if (!test_bit(I915_RESET_HANDOFF, &error->flags))
diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
index 60a4bd9405be..9e6c9c171ed5 100644
--- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
@@ -385,6 +385,30 @@ static int igt_global_reset(void *arg)
 	return err;
 }
 
+static int igt_wedged_reset(void *arg)
+{
+	struct drm_i915_private *i915 = arg;
+
+	/* Check that we can recover a wedged device with a GPU reset */
+
+	igt_global_reset_lock(i915);
+	mutex_lock(&i915->drm.struct_mutex);
+	intel_runtime_pm_get(i915);
+
+	i915_gem_set_wedged(i915);
+	GEM_BUG_ON(!i915_terminally_wedged(&i915->gpu_error));
+
+	set_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags);
+	i915_reset(i915, ALL_ENGINES, NULL);
+	GEM_BUG_ON(test_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags));
+
+	intel_runtime_pm_put(i915);
+	mutex_unlock(&i915->drm.struct_mutex);
+	igt_global_reset_unlock(i915);
+
+	return i915_terminally_wedged(&i915->gpu_error) ? -EIO : 0;
+}
+
 static bool wait_for_idle(struct intel_engine_cs *engine)
 {
 	return wait_for(intel_engine_is_idle(engine), IGT_IDLE_TIMEOUT) == 0;
@@ -1452,6 +1476,7 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
 {
 	static const struct i915_subtest tests[] = {
 		SUBTEST(igt_global_reset), /* attempt to recover GPU first */
+		SUBTEST(igt_wedged_reset),
 		SUBTEST(igt_hang_sanitycheck),
 		SUBTEST(igt_reset_idle_engine),
 		SUBTEST(igt_reset_active_engine),

From 921f3a60e54e751ce1393deef6218c5900558b3d Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 13 Dec 2018 09:15:20 +0000
Subject: [PATCH 043/118] drm/i915/selftests: Verify we can perform resets from
 atomic context

We currently require that our per-engine reset can be called from any
context, even hardirq, and in the future wish to perform the device
reset without holding struct_mutex (which requires some lockless
shenanigans that demand the lowlevel intel_reset_gpu() be able to be
used in atomic context). Test that we meet the current requirements by
calling i915_reset_engine() from under various atomic contexts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213091522.2926-2-chris@chris-wilson.co.uk
---
 .../gpu/drm/i915/selftests/intel_hangcheck.c  | 172 ++++++++++++++++++
 1 file changed, 172 insertions(+)

diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
index 9e6c9c171ed5..797cf5e6d6d4 100644
--- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
@@ -1472,6 +1472,177 @@ static int igt_handle_error(void *arg)
 	return err;
 }
 
+static void __preempt_begin(void)
+{
+	preempt_disable();
+}
+
+static void __preempt_end(void)
+{
+	preempt_enable();
+}
+
+static void __softirq_begin(void)
+{
+	local_bh_disable();
+}
+
+static void __softirq_end(void)
+{
+	local_bh_enable();
+}
+
+static void __hardirq_begin(void)
+{
+	local_irq_disable();
+}
+
+static void __hardirq_end(void)
+{
+	local_irq_enable();
+}
+
+struct atomic_section {
+	const char *name;
+	void (*critical_section_begin)(void);
+	void (*critical_section_end)(void);
+};
+
+static int __igt_atomic_reset_engine(struct intel_engine_cs *engine,
+				     const struct atomic_section *p,
+				     const char *mode)
+{
+	struct tasklet_struct * const t = &engine->execlists.tasklet;
+	int err;
+
+	GEM_TRACE("i915_reset_engine(%s:%s) under %s\n",
+		  engine->name, mode, p->name);
+
+	tasklet_disable_nosync(t);
+	p->critical_section_begin();
+
+	err = i915_reset_engine(engine, NULL);
+
+	p->critical_section_end();
+	tasklet_enable(t);
+
+	if (err)
+		pr_err("i915_reset_engine(%s:%s) failed under %s\n",
+		       engine->name, mode, p->name);
+
+	return err;
+}
+
+static int igt_atomic_reset_engine(struct intel_engine_cs *engine,
+				   const struct atomic_section *p)
+{
+	struct drm_i915_private *i915 = engine->i915;
+	struct i915_request *rq;
+	struct hang h;
+	int err;
+
+	err = __igt_atomic_reset_engine(engine, p, "idle");
+	if (err)
+		return err;
+
+	err = hang_init(&h, i915);
+	if (err)
+		return err;
+
+	rq = hang_create_request(&h, engine);
+	if (IS_ERR(rq)) {
+		err = PTR_ERR(rq);
+		goto out;
+	}
+
+	i915_request_get(rq);
+	i915_request_add(rq);
+
+	if (wait_until_running(&h, rq)) {
+		err = __igt_atomic_reset_engine(engine, p, "active");
+	} else {
+		pr_err("%s(%s): Failed to start request %llx, at %x\n",
+		       __func__, engine->name,
+		       rq->fence.seqno, hws_seqno(&h, rq));
+		err = -EIO;
+	}
+
+	if (err == 0) {
+		struct igt_wedge_me w;
+
+		igt_wedge_on_timeout(&w, i915, HZ / 20 /* 50ms timeout*/)
+			i915_request_wait(rq,
+					  I915_WAIT_LOCKED,
+					  MAX_SCHEDULE_TIMEOUT);
+		if (i915_terminally_wedged(&i915->gpu_error))
+			err = -EIO;
+	}
+
+	i915_request_put(rq);
+out:
+	hang_fini(&h);
+	return err;
+}
+
+static void force_reset(struct drm_i915_private *i915)
+{
+	i915_gem_set_wedged(i915);
+	set_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags);
+	i915_reset(i915, 0, NULL);
+}
+
+static int igt_atomic_reset(void *arg)
+{
+	static const struct atomic_section phases[] = {
+		{ "preempt", __preempt_begin, __preempt_end },
+		{ "softirq", __softirq_begin, __softirq_end },
+		{ "hardirq", __hardirq_begin, __hardirq_end },
+		{ }
+	};
+	struct drm_i915_private *i915 = arg;
+	int err = 0;
+
+	/* Check that the resets are usable from atomic context */
+
+	if (USES_GUC_SUBMISSION(i915))
+		return 0; /* guc is dead; long live the guc */
+
+	igt_global_reset_lock(i915);
+	mutex_lock(&i915->drm.struct_mutex);
+	intel_runtime_pm_get(i915);
+
+	/* Flush any requests before we get started and check basics */
+	force_reset(i915);
+	if (i915_terminally_wedged(&i915->gpu_error))
+		goto unlock;
+
+	if (intel_has_reset_engine(i915)) {
+		struct intel_engine_cs *engine;
+		enum intel_engine_id id;
+
+		for_each_engine(engine, i915, id) {
+			const typeof(*phases) *p;
+
+			for (p = phases; p->name; p++) {
+				err = igt_atomic_reset_engine(engine, p);
+				if (err)
+					goto out;
+			}
+		}
+	}
+
+out:
+	/* As we poke around the guts, do a full reset before continuing. */
+	force_reset(i915);
+
+unlock:
+	intel_runtime_pm_put(i915);
+	mutex_unlock(&i915->drm.struct_mutex);
+	igt_global_reset_unlock(i915);
+
+	return err;
+}
+
 int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
 {
 	static const struct i915_subtest tests[] = {
@@ -1487,6 +1658,7 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
 		SUBTEST(igt_reset_evict_ppgtt),
 		SUBTEST(igt_reset_evict_fence),
 		SUBTEST(igt_handle_error),
+		SUBTEST(igt_atomic_reset),
 	};
 	bool saved_hangcheck;
 	int err;

From 57b19d55189bacc9408519cd7ab5ade6ca2d4ac5 Mon Sep 17 00:00:00 2001
From: Oscar Mateo <oscar.mateo@intel.com>
Date: Thu, 13 Dec 2018 09:15:21 +0000
Subject: [PATCH 044/118] drm/i915/icl: Record the valid VDBoxes with SFC
 capability

In Gen11, only even numbered "logical" VDBoxes are hooked up to an SFC
(Scaler & Format Converter) unit. We will use this information to decide
when the SFC units need to be reset.

BSpec: 20189

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213091522.2926-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_device_info.c | 11 ++++++++++-
 drivers/gpu/drm/i915/intel_device_info.h |  3 +++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index eccb30a68b10..a1dfb00aa16d 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -884,8 +884,9 @@ void intel_driver_caps_print(const struct intel_driver_caps *caps,
 void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
 {
 	struct intel_device_info *info = mkwrite_device_info(dev_priv);
-	u32 media_fuse;
+	unsigned int logical_vdbox = 0;
 	unsigned int i;
+	u32 media_fuse;
 
 	if (INTEL_GEN(dev_priv) < 11)
 		return;
@@ -904,7 +905,15 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
 		if (!(BIT(i) & info->vdbox_enable)) {
 			info->ring_mask &= ~ENGINE_MASK(_VCS(i));
 			DRM_DEBUG_DRIVER("vcs%u fused off\n", i);
+			continue;
 		}
+
+		/*
+		 * In Gen11, only even numbered logical VDBOXes are
+		 * hooked up to an SFC (Scaler & Format Converter) unit.
+		 */
+		if (logical_vdbox++ % 2 == 0)
+			info->vdbox_sfc_access |= BIT(i);
 	}
 
 	DRM_DEBUG_DRIVER("vebox enable: %04x\n", info->vebox_enable);
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 1caf24e2cf0b..dd34f974a857 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -198,6 +198,9 @@ struct intel_device_info {
 	u8 vdbox_enable;
 	u8 vebox_enable;
 
+	/* Media engine access to SFC per instance */
+	u8 vdbox_sfc_access;
+
 	struct color_luts {
 		u16 degamma_lut_size;
 		u16 gamma_lut_size;

From f513ac76530c2769ebf6e8954c45f39c6985cfb6 Mon Sep 17 00:00:00 2001
From: Oscar Mateo <oscar.mateo@intel.com>
Date: Thu, 13 Dec 2018 09:15:22 +0000
Subject: [PATCH 045/118] drm/i915/icl: Mind the SFC units when resetting VD or
 VEBox engines

SFC (Scaler & Format Converter) units are shared between VD and VEBoxes.
They also happen to have separate reset bits. So, whenever we want to reset
one or more of the media engines, we have to make sure the SFCs do not
change owner in the process and, if this owner happens to be one of the
engines being reset, we need to reset the SFC as well.

This happens in 4 steps:

1) Tell the engine that a software reset is going to happen. The engine
will then try to force lock the SFC (if currently locked, it will
remain so; if currently unlocked, it will ignore this and all new lock
requests).

2) Poll the ack bit to make sure the hardware has received the forced
lock from the driver. Once this bit is set, it indicates SFC status
(lock or unlock) will not change anymore (until we tell the engine it
is safe to unlock again).

3) Check the usage bit to see if the SFC has ended up being locked to
the engine we want to reset. If this is the case, we have to reset
the SFC as well.

4) Unlock all the SFCs once the reset sequence is completed.

Obviously, if we are resetting the whole GPU, we don't have to worry
about all of this.

BSpec: 10989
BSpec: 10990
BSpec: 10954
BSpec: 10955
BSpec: 10956
BSpec: 19212

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213091522.2926-4-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_reg.h     |  18 +++++
 drivers/gpu/drm/i915/intel_uncore.c | 115 ++++++++++++++++++++++++++--
 2 files changed, 128 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0a7d60509ca7..0796526dc10f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -347,6 +347,24 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define  GEN11_GRDOM_MEDIA4		(1 << 8)
 #define  GEN11_GRDOM_VECS		(1 << 13)
 #define  GEN11_GRDOM_VECS2		(1 << 14)
+#define  GEN11_GRDOM_SFC0		(1 << 17)
+#define  GEN11_GRDOM_SFC1		(1 << 18)
+
+#define  GEN11_VCS_SFC_RESET_BIT(instance)	(GEN11_GRDOM_SFC0 << ((instance) >> 1))
+#define  GEN11_VECS_SFC_RESET_BIT(instance)	(GEN11_GRDOM_SFC0 << (instance))
+
+#define GEN11_VCS_SFC_FORCED_LOCK(engine)	_MMIO((engine)->mmio_base + 0x88C)
+#define   GEN11_VCS_SFC_FORCED_LOCK_BIT		(1 << 0)
+#define GEN11_VCS_SFC_LOCK_STATUS(engine)	_MMIO((engine)->mmio_base + 0x890)
+#define   GEN11_VCS_SFC_USAGE_BIT		(1 << 0)
+#define   GEN11_VCS_SFC_LOCK_ACK_BIT		(1 << 1)
+
+#define GEN11_VECS_SFC_FORCED_LOCK(engine)	_MMIO((engine)->mmio_base + 0x201C)
+#define   GEN11_VECS_SFC_FORCED_LOCK_BIT	(1 << 0)
+#define GEN11_VECS_SFC_LOCK_ACK(engine)		_MMIO((engine)->mmio_base + 0x2018)
+#define   GEN11_VECS_SFC_LOCK_ACK_BIT		(1 << 0)
+#define GEN11_VECS_SFC_USAGE(engine)		_MMIO((engine)->mmio_base + 0x2014)
+#define   GEN11_VECS_SFC_USAGE_BIT		(1 << 0)
 
 #define RING_PP_DIR_BASE(engine)	_MMIO((engine)->mmio_base + 0x228)
 #define RING_PP_DIR_BASE_READ(engine)	_MMIO((engine)->mmio_base + 0x518)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index ec6dde2e59eb..5800f0ce2c57 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1931,6 +1931,103 @@ static int gen6_reset_engines(struct drm_i915_private *dev_priv,
 	return gen6_hw_domain_reset(dev_priv, hw_mask);
 }
 
+static u32 gen11_lock_sfc(struct drm_i915_private *dev_priv,
+			  struct intel_engine_cs *engine)
+{
+	u8 vdbox_sfc_access = INTEL_INFO(dev_priv)->vdbox_sfc_access;
+	i915_reg_t sfc_forced_lock, sfc_forced_lock_ack;
+	u32 sfc_forced_lock_bit, sfc_forced_lock_ack_bit;
+	i915_reg_t sfc_usage;
+	u32 sfc_usage_bit;
+	u32 sfc_reset_bit;
+
+	switch (engine->class) {
+	case VIDEO_DECODE_CLASS:
+		if ((BIT(engine->instance) & vdbox_sfc_access) == 0)
+			return 0;
+
+		sfc_forced_lock = GEN11_VCS_SFC_FORCED_LOCK(engine);
+		sfc_forced_lock_bit = GEN11_VCS_SFC_FORCED_LOCK_BIT;
+
+		sfc_forced_lock_ack = GEN11_VCS_SFC_LOCK_STATUS(engine);
+		sfc_forced_lock_ack_bit  = GEN11_VCS_SFC_LOCK_ACK_BIT;
+
+		sfc_usage = GEN11_VCS_SFC_LOCK_STATUS(engine);
+		sfc_usage_bit = GEN11_VCS_SFC_USAGE_BIT;
+		sfc_reset_bit = GEN11_VCS_SFC_RESET_BIT(engine->instance);
+		break;
+
+	case VIDEO_ENHANCEMENT_CLASS:
+		sfc_forced_lock = GEN11_VECS_SFC_FORCED_LOCK(engine);
+		sfc_forced_lock_bit = GEN11_VECS_SFC_FORCED_LOCK_BIT;
+
+		sfc_forced_lock_ack = GEN11_VECS_SFC_LOCK_ACK(engine);
+		sfc_forced_lock_ack_bit  = GEN11_VECS_SFC_LOCK_ACK_BIT;
+
+		sfc_usage = GEN11_VECS_SFC_USAGE(engine);
+		sfc_usage_bit = GEN11_VECS_SFC_USAGE_BIT;
+		sfc_reset_bit = GEN11_VECS_SFC_RESET_BIT(engine->instance);
+		break;
+
+	default:
+		return 0;
+	}
+
+	/*
+	 * Tell the engine that a software reset is going to happen. The engine
+	 * will then try to force lock the SFC (if currently locked, it will
+	 * remain so until we tell the engine it is safe to unlock; if currently
+	 * unlocked, it will ignore this and all new lock requests). If SFC
+	 * ends up being locked to the engine we want to reset, we have to reset
+	 * it as well (we will unlock it once the reset sequence is completed).
+	 */
+	I915_WRITE_FW(sfc_forced_lock,
+		      I915_READ_FW(sfc_forced_lock) | sfc_forced_lock_bit);
+
+	if (__intel_wait_for_register_fw(dev_priv,
+					 sfc_forced_lock_ack,
+					 sfc_forced_lock_ack_bit,
+					 sfc_forced_lock_ack_bit,
+					 1000, 0, NULL)) {
+		DRM_DEBUG_DRIVER("Wait for SFC forced lock ack failed\n");
+		return 0;
+	}
+
+	if (I915_READ_FW(sfc_usage) & sfc_usage_bit)
+		return sfc_reset_bit;
+
+	return 0;
+}
+
+static void gen11_unlock_sfc(struct drm_i915_private *dev_priv,
+			     struct intel_engine_cs *engine)
+{
+	u8 vdbox_sfc_access = INTEL_INFO(dev_priv)->vdbox_sfc_access;
+	i915_reg_t sfc_forced_lock;
+	u32 sfc_forced_lock_bit;
+
+	switch (engine->class) {
+	case VIDEO_DECODE_CLASS:
+		if ((BIT(engine->instance) & vdbox_sfc_access) == 0)
+			return;
+
+		sfc_forced_lock = GEN11_VCS_SFC_FORCED_LOCK(engine);
+		sfc_forced_lock_bit = GEN11_VCS_SFC_FORCED_LOCK_BIT;
+		break;
+
+	case VIDEO_ENHANCEMENT_CLASS:
+		sfc_forced_lock = GEN11_VECS_SFC_FORCED_LOCK(engine);
+		sfc_forced_lock_bit = GEN11_VECS_SFC_FORCED_LOCK_BIT;
+		break;
+
+	default:
+		return;
+	}
+
+	I915_WRITE_FW(sfc_forced_lock,
+		      I915_READ_FW(sfc_forced_lock) & ~sfc_forced_lock_bit);
+}
+
 /**
  * gen11_reset_engines - reset individual engines
  * @dev_priv: i915 device
@@ -1947,7 +2044,6 @@ static int gen6_reset_engines(struct drm_i915_private *dev_priv,
 static int gen11_reset_engines(struct drm_i915_private *dev_priv,
 			       unsigned int engine_mask)
 {
-	struct intel_engine_cs *engine;
 	const u32 hw_engine_mask[I915_NUM_ENGINES] = {
 		[RCS] = GEN11_GRDOM_RENDER,
 		[BCS] = GEN11_GRDOM_BLT,
@@ -1958,21 +2054,30 @@ static int gen11_reset_engines(struct drm_i915_private *dev_priv,
 		[VECS] = GEN11_GRDOM_VECS,
 		[VECS2] = GEN11_GRDOM_VECS2,
 	};
+	struct intel_engine_cs *engine;
+	unsigned int tmp;
 	u32 hw_mask;
+	int ret;
 
 	BUILD_BUG_ON(VECS2 + 1 != I915_NUM_ENGINES);
 
 	if (engine_mask == ALL_ENGINES) {
 		hw_mask = GEN11_GRDOM_FULL;
 	} else {
-		unsigned int tmp;
-
 		hw_mask = 0;
-		for_each_engine_masked(engine, dev_priv, engine_mask, tmp)
+		for_each_engine_masked(engine, dev_priv, engine_mask, tmp) {
 			hw_mask |= hw_engine_mask[engine->id];
+			hw_mask |= gen11_lock_sfc(dev_priv, engine);
+		}
 	}
 
-	return gen6_hw_domain_reset(dev_priv, hw_mask);
+	ret = gen6_hw_domain_reset(dev_priv, hw_mask);
+
+	if (engine_mask != ALL_ENGINES)
+		for_each_engine_masked(engine, dev_priv, engine_mask, tmp)
+			gen11_unlock_sfc(dev_priv, engine);
+
+	return ret;
 }
 
 /**

From a489334941d450c5212ccd821fb11102e910be69 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 13 Dec 2018 16:12:41 +0000
Subject: [PATCH 046/118] drm/i915: Fix Cherryview oops on boot
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Do not dereference the LUT blob before checking whether that blob
exists. Or else,

<1>[   13.978684] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
<6>[   13.978718] PGD 0 P4D 0
<4>[   13.978733] Oops: 0000 [#1] PREEMPT SMP PTI
<4>[   13.978750] CPU: 0 PID: 282 Comm: modprobe Not tainted 4.20.0-rc5-CI-CI_DRM_5294+ #1
<4>[   13.978773] Hardware name:  /NUC5CPYB, BIOS PYBSWCEL.86A.0058.2016.1102.1842 11/02/2016
<4>[   13.978932] RIP: 0010:cherryview_load_csc_matrix+0x1e6/0x210 [i915]
<4>[   13.978953] Code: 41 5c 41 5d e9 7b 83 aa e1 41 c1 e4 0d 48 83 bd 00 02 00 00 00 48 8b 85 10 02 00 00 45 89 e5 74 09 ba 01 00 00 00 31 c9 eb 9d <48> 8b 50 48 48 c1 ea 03 81 fa 00 01 00 00 75 07 31 d2 48 85 c0 75
<4>[   13.979001] RSP: 0018:ffffc9000026f840 EFLAGS: 00010246
<4>[   13.979018] RAX: 0000000000000000 RBX: ffff888165500000 RCX: 7885fe6200000000
<4>[   13.979039] RDX: 0000000000000020 RSI: ffff88816553a008 RDI: ffff888165464a88
<4>[   13.979060] RBP: ffff888165464a88 R08: 000000000ed0e429 R09: 0000000000000001
<4>[   13.979080] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004000
<4>[   13.979101] R13: 0000000000004000 R14: ffff888165500000 R15: ffff888165464a88
<4>[   13.979122] FS:  00007fb69c4f3540(0000) GS:ffff88817ba00000(0000) knlGS:0000000000000000
<4>[   13.979146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   13.979163] CR2: 0000000000000048 CR3: 000000016d7fa000 CR4: 00000000001006f0
<4>[   13.979184] Call Trace:
<4>[   13.979302]  intel_update_crtc+0x18f/0x2b0 [i915]
<4>[   13.979421]  intel_update_crtcs+0x49/0x60 [i915]
<4>[   13.979538]  intel_atomic_commit_tail+0x1ea/0xd70 [i915]
<4>[   13.979657]  ? intel_atomic_commit_ready+0x3f/0x50 [i915]
<4>[   13.979762]  ? __i915_sw_fence_complete+0x1a0/0x250 [i915]
<4>[   13.979884]  intel_atomic_commit+0x244/0x330 [i915]
<4>[   13.980002]  intel_initial_commit+0xb6/0x140 [i915]
<4>[   13.980127]  intel_modeset_init+0x7a1/0x1880 [i915]
<4>[   13.980235]  i915_driver_load+0xcbb/0x15c0 [i915]
<4>[   13.980257]  ? __pm_runtime_resume+0x4f/0x80
<4>[   13.980277]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
<4>[   13.980296]  ? lockdep_hardirqs_on+0xe0/0x1b0
<4>[   13.980401]  i915_pci_probe+0x29/0xa0 [i915]
<4>[   13.980421]  pci_device_probe+0xa1/0x130
<4>[   13.980440]  really_probe+0xf3/0x3e0
<4>[   13.980456]  driver_probe_device+0x10a/0x120
<4>[   13.980474]  __driver_attach+0xdb/0x100
<4>[   13.980489]  ? driver_probe_device+0x120/0x120
<4>[   13.980505]  ? driver_probe_device+0x120/0x120
<4>[   13.980522]  bus_for_each_dev+0x74/0xc0
<4>[   13.980539]  bus_add_driver+0x15f/0x250
<4>[   13.980554]  ? 0xffffffffa0348000
<4>[   13.980568]  driver_register+0x56/0xe0
<4>[   13.980583]  ? 0xffffffffa0348000
<4>[   13.980597]  do_one_initcall+0x58/0x2e0
<4>[   13.980615]  ? do_init_module+0x1d/0x1ea
<4>[   13.980631]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[   13.980649]  ? kmem_cache_alloc_trace+0x264/0x290
<4>[   13.980668]  do_init_module+0x56/0x1ea
<4>[   13.980685]  load_module+0x227a/0x29c0
<4>[   13.980715]  ? __se_sys_finit_module+0xd3/0xf0
<4>[   13.980731]  __se_sys_finit_module+0xd3/0xf0
<4>[   13.980756]  do_syscall_64+0x55/0x190
<4>[   13.980772]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[   13.980789] RIP: 0033:0x7fb69c019839
<4>[   13.980804] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
<4>[   13.980851] RSP: 002b:00007ffdc112e3a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4>[   13.980875] RAX: ffffffffffffffda RBX: 000055c689fe0b30 RCX: 00007fb69c019839
<4>[   13.980895] RDX: 0000000000000000 RSI: 000055c689a05d2e RDI: 0000000000000000
<4>[   13.980916] RBP: 000055c689a05d2e R08: 0000000000000000 R09: 0000000000000000
<4>[   13.980936] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
<4>[   13.980957] R13: 000055c689fe0c60 R14: 0000000000040000 R15: 000055c689fe0b30
<4>[   13.980986] Modules linked in: i915(+) snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm pinctrl_cherryview prime_numbers
<4>[   13.981027] CR2: 0000000000000048

Fixes: 302da0cdf784 ("drm/i915: Use intel_ types more consistently for color management code (v2)")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109054
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181213161241.3461-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_color.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 1d572e83db7f..37fd9ddf762e 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -74,14 +74,17 @@
 #define ILK_CSC_COEFF_1_0		\
 	((7 << 12) | ILK_CSC_COEFF_FP(CTM_COEFF_1_0, 8))
 
+static bool lut_is_legacy(struct drm_property_blob *lut)
+{
+	return drm_color_lut_size(lut) == LEGACY_LUT_LENGTH;
+}
+
 static bool crtc_state_is_legacy_gamma(struct intel_crtc_state *crtc_state)
 {
-	int lut_length = drm_color_lut_size(crtc_state->base.gamma_lut);
-
 	return !crtc_state->base.degamma_lut &&
 		!crtc_state->base.ctm &&
 		crtc_state->base.gamma_lut &&
-		lut_length == LEGACY_LUT_LENGTH;
+		lut_is_legacy(crtc_state->base.gamma_lut);
 }
 
 /*

From e845f099f1c6e72c67536ee41f735f01d30d9fc7 Mon Sep 17 00:00:00 2001
From: Manasi Navare <manasi.d.navare@intel.com>
Date: Wed, 5 Dec 2018 16:54:07 -0800
Subject: [PATCH 047/118] drm/i915/dsc: Add Per connector debugfs node for DSC
 support/enable

DSC can be supported per DP connector. This patch adds a per connector
debugfs node to expose DSC support capability by the kernel.
The same node can be used from userspace to force DSC enable.

force_dsc_en written through this debugfs node is used to force
DSC even for lower resolutions.

Credits to Ville Syrjala for suggesting the proper locks to be used
and to Lyude Paul for explaining how to use them in this context

v8:
* Add else if (ret) for drm_modeset_lock (Lyude)
v7:
* Get crtc, crtc_state from connector atomic state
and add proper locks and backoff (Ville, Chris Wilson, Lyude)
(Suggested-by: Ville Syrjala <ville.syrjala@linux.intel.com>)
* Use %zu for printing size_t variable (Lyude)
v6:
* Read fec_capable only for non edp (Manasi)
v5:
* Name it dsc sink support and also add
fec support in the same node (Ville)
v4:
* Add missed connector_status check (Manasi)
* Create i915_dsc_support node only for Gen >=10 (manasi)
* Access intel_dp->dsc_dpcd only if its not NULL (Manasi)
v3:
* Combine Force_dsc_en with this patch (Ville)
v2:
* Use kstrtobool_from_user to avoid explicit error checking (Lyude)
* Rebase on drm-tip (Manasi)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181206005407.4698-1-manasi.d.navare@intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c | 106 ++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_dp.c     |   3 +-
 drivers/gpu/drm/i915/intel_drv.h    |   3 +
 3 files changed, 111 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index ed44e30f875e..77486a614614 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -5094,6 +5094,105 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(i915_hdcp_sink_capability);
 
+static int i915_dsc_fec_support_show(struct seq_file *m, void *data)
+{
+	struct drm_connector *connector = m->private;
+	struct drm_device *dev = connector->dev;
+	struct drm_crtc *crtc;
+	struct intel_dp *intel_dp;
+	struct drm_modeset_acquire_ctx ctx;
+	struct intel_crtc_state *crtc_state = NULL;
+	int ret = 0;
+	bool try_again = false;
+
+	drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
+
+	do {
+		ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
+				       &ctx);
+		if (ret) {
+			ret = -EINTR;
+			break;
+		}
+		crtc = connector->state->crtc;
+		if (connector->status != connector_status_connected || !crtc) {
+			ret = -ENODEV;
+			break;
+		}
+		ret = drm_modeset_lock(&crtc->mutex, &ctx);
+		if (ret == -EDEADLK) {
+			ret = drm_modeset_backoff(&ctx);
+			if (!ret) {
+				try_again = true;
+				continue;
+			}
+			break;
+		} else if (ret) {
+			break;
+		}
+		intel_dp = enc_to_intel_dp(&intel_attached_encoder(connector)->base);
+		crtc_state = to_intel_crtc_state(crtc->state);
+		seq_printf(m, "DSC_Enabled: %s\n",
+			   yesno(crtc_state->dsc_params.compression_enable));
+		if (intel_dp->dsc_dpcd)
+			seq_printf(m, "DSC_Sink_Support: %s\n",
+				   yesno(drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)));
+		if (!intel_dp_is_edp(intel_dp))
+			seq_printf(m, "FEC_Sink_Support: %s\n",
+				   yesno(drm_dp_sink_supports_fec(intel_dp->fec_capable)));
+	} while (try_again);
+
+	drm_modeset_drop_locks(&ctx);
+	drm_modeset_acquire_fini(&ctx);
+
+	return ret;
+}
+
+static ssize_t i915_dsc_fec_support_write(struct file *file,
+					  const char __user *ubuf,
+					  size_t len, loff_t *offp)
+{
+	bool dsc_enable = false;
+	int ret;
+	struct drm_connector *connector =
+		((struct seq_file *)file->private_data)->private;
+	struct intel_encoder *encoder = intel_attached_encoder(connector);
+	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
+
+	if (len == 0)
+		return 0;
+
+	DRM_DEBUG_DRIVER("Copied %zu bytes from user to force DSC\n",
+			 len);
+
+	ret = kstrtobool_from_user(ubuf, len, &dsc_enable);
+	if (ret < 0)
+		return ret;
+
+	DRM_DEBUG_DRIVER("Got %s for DSC Enable\n",
+			 (dsc_enable) ? "true" : "false");
+	intel_dp->force_dsc_en = dsc_enable;
+
+	*offp += len;
+	return len;
+}
+
+static int i915_dsc_fec_support_open(struct inode *inode,
+				     struct file *file)
+{
+	return single_open(file, i915_dsc_fec_support_show,
+			   inode->i_private);
+}
+
+static const struct file_operations i915_dsc_fec_support_fops = {
+	.owner = THIS_MODULE,
+	.open = i915_dsc_fec_support_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.write = i915_dsc_fec_support_write
+};
+
 /**
  * i915_debugfs_connector_add - add i915 specific connector debugfs files
  * @connector: pointer to a registered drm_connector
@@ -5106,6 +5205,7 @@ DEFINE_SHOW_ATTRIBUTE(i915_hdcp_sink_capability);
 int i915_debugfs_connector_add(struct drm_connector *connector)
 {
 	struct dentry *root = connector->debugfs_entry;
+	struct drm_i915_private *dev_priv = to_i915(connector->dev);
 
 	/* The connector must have been registered beforehands. */
 	if (!root)
@@ -5130,5 +5230,11 @@ int i915_debugfs_connector_add(struct drm_connector *connector)
 				    connector, &i915_hdcp_sink_capability_fops);
 	}
 
+	if (INTEL_GEN(dev_priv) >= 10 &&
+	    (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	     connector->connector_type == DRM_MODE_CONNECTOR_eDP))
+		debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
+				    connector, &i915_dsc_fec_support_fops);
+
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index b3138abd3321..62484e129563 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2051,7 +2051,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
 							&limits);
 
 	/* enable compression if the mode doesn't fit available BW */
-	if (!ret) {
+	DRM_DEBUG_KMS("Force DSC en = %d\n", intel_dp->force_dsc_en);
+	if (!ret || intel_dp->force_dsc_en) {
 		if (!intel_dp_dsc_compute_config(intel_dp, pipe_config,
 						 conn_state, &limits))
 			return false;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d08f08f607dd..cb3a055f18c8 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1209,6 +1209,9 @@ struct intel_dp {
 
 	/* Displayport compliance testing */
 	struct intel_dp_compliance compliance;
+
+	/* Display stream compression testing */
+	bool force_dsc_en;
 };
 
 enum lspcon_vendor {

From a49aa6508ed7d43e89d6c60224916613ad0a4458 Mon Sep 17 00:00:00 2001
From: Anusha Srivatsa <anusha.srivatsa@intel.com>
Date: Fri, 7 Dec 2018 10:28:39 -0800
Subject: [PATCH 048/118] drm/i915/huc: Update the HuC version for BXT

We have an update for HuC for BXT.
Load the latest version.

v2: Change the subject.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207182840.9292-2-anusha.srivatsa@intel.com
---
 drivers/gpu/drm/i915/intel_huc_fw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_huc_fw.c b/drivers/gpu/drm/i915/intel_huc_fw.c
index f93d2384d482..9612227b3c44 100644
--- a/drivers/gpu/drm/i915/intel_huc_fw.c
+++ b/drivers/gpu/drm/i915/intel_huc_fw.c
@@ -23,8 +23,8 @@
  */
 
 #define BXT_HUC_FW_MAJOR 01
-#define BXT_HUC_FW_MINOR 07
-#define BXT_BLD_NUM 1398
+#define BXT_HUC_FW_MINOR 8
+#define BXT_BLD_NUM 2893
 
 #define SKL_HUC_FW_MAJOR 01
 #define SKL_HUC_FW_MINOR 07

From 2c5c415c1df6bd244496e8b93b6393ad89b2403f Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 17 Dec 2018 15:19:03 +0100
Subject: [PATCH 049/118] drm/i915: Update crtc scaler settings when
 update_pipe is set

When the pipe_config's update_pipe flag is set we may need to update the
panel fitting settings. On GEN9+ this means we need to update the crtc's
scaler settings.

This fixes the following WARN_ON, during i915 loading on an Asrock
B150M Pro4S/D3 board with an i5-6500 CPU / graphics:

[drm:pipe_config_err [i915]] *ERROR* mismatch in pch_pfit.enabled
 (expected no, found yes)
pipe state doesn't match!
WARNING: CPU: 3 PID: 305 at drivers/gpu/drm/i915/intel_display.c:12084

With line 12084 being the I915_STATE_WARN call inside the
"if (!intel_pipe_config_compare())" block in verify_crtc_state().

On this board with 2 1920x1080 monitors connected over HDMI the GOP
initializes both monitors at 1920x1080 and despite no scaling being
necessary configures a scaler for one of them.

When booting with fastboot=1 on the initial modeset needs_modeset will
be false while update_pipe is true. Since we were not calling
skl_update_scaler_crtc() in this case we would leave the scaler enabled
causing this error.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181217141903.4182-1-hdegoede@redhat.com
---
 drivers/gpu/drm/i915/intel_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2c3f3f68d506..3b7094822aa9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11009,7 +11009,7 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
 	}
 
 	if (INTEL_GEN(dev_priv) >= 9) {
-		if (mode_changed)
+		if (mode_changed || pipe_config->update_pipe)
 			ret = skl_update_scaler_crtc(pipe_config);
 
 		if (!ret)

From b265a2a6255f581258ccfdccbd2efca51a142fe2 Mon Sep 17 00:00:00 2001
From: Clint Taylor <clinton.a.taylor@intel.com>
Date: Mon, 17 Dec 2018 14:13:47 -0800
Subject: [PATCH 050/118] drm/i915/icl: combo port vswing programming changes
 per BSPEC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

In August 2018 the BSPEC changed the ICL port programming sequence to
closely resemble earlier gen programming sequence. Restrict combo phy to
HBR max rate unless eDP panel is connected to port.

v2: remove debug code that Imre found
v3: simplify translation table if-else
v4: edp translation table now based on link rate and low_swing
v5: Misc review comments + r-b
BSpec: 21257
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1545084827-5776-1-git-send-email-clinton.a.taylor@intel.com
---
 drivers/gpu/drm/i915/i915_reg.h  |   4 +
 drivers/gpu/drm/i915/intel_ddi.c | 238 +++++++++++--------------------
 drivers/gpu/drm/i915/intel_dp.c  |   4 +-
 3 files changed, 93 insertions(+), 153 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0796526dc10f..02af9b5add34 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1884,6 +1884,10 @@ enum i915_power_well_id {
 
 #define CNL_PORT_TX_DW7_GRP(port)	_MMIO(_CNL_PORT_TX_DW_GRP((port), 7))
 #define CNL_PORT_TX_DW7_LN0(port)	_MMIO(_CNL_PORT_TX_DW_LN0((port), 7))
+#define ICL_PORT_TX_DW7_AUX(port)	_MMIO(_ICL_PORT_TX_DW_AUX(7, port))
+#define ICL_PORT_TX_DW7_GRP(port)	_MMIO(_ICL_PORT_TX_DW_GRP(7, port))
+#define ICL_PORT_TX_DW7_LN0(port)	_MMIO(_ICL_PORT_TX_DW_LN(7, 0, port))
+#define ICL_PORT_TX_DW7_LN(port, ln)	_MMIO(_ICL_PORT_TX_DW_LN(7, ln, port))
 #define   N_SCALAR(x)			((x) << 24)
 #define   N_SCALAR_MASK			(0x7F << 24)
 
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 92c0bf70fe09..dfd35822cdab 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -494,103 +494,58 @@ static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_1_05V[] = {
 	{ 0x2, 0x7F, 0x3F, 0x00, 0x00 },	/* 400   400      0.0   */
 };
 
-struct icl_combo_phy_ddi_buf_trans {
-	u32 dw2_swing_select;
-	u32 dw2_swing_scalar;
-	u32 dw4_scaling;
+/* icl_combo_phy_ddi_translations */
+static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_dp_hbr2[] = {
+						/* NT mV Trans mV db    */
+	{ 0xA, 0x35, 0x3F, 0x00, 0x00 },	/* 350   350      0.0   */
+	{ 0xA, 0x4F, 0x37, 0x00, 0x08 },	/* 350   500      3.1   */
+	{ 0xC, 0x71, 0x2F, 0x00, 0x10 },	/* 350   700      6.0   */
+	{ 0x6, 0x7F, 0x2B, 0x00, 0x14 },	/* 350   900      8.2   */
+	{ 0xA, 0x4C, 0x3F, 0x00, 0x00 },	/* 500   500      0.0   */
+	{ 0xC, 0x73, 0x34, 0x00, 0x0B },	/* 500   700      2.9   */
+	{ 0x6, 0x7F, 0x2F, 0x00, 0x10 },	/* 500   900      5.1   */
+	{ 0xC, 0x6C, 0x3C, 0x00, 0x03 },	/* 650   700      0.6   */
+	{ 0x6, 0x7F, 0x35, 0x00, 0x0A },	/* 600   900      3.5   */
+	{ 0x6, 0x7F, 0x3F, 0x00, 0x00 },	/* 900   900      0.0   */
 };
 
-/* Voltage Swing Programming for VccIO 0.85V for DP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_dp_hdmi_0_85V[] = {
-				/* Voltage mV  db    */
-	{ 0x2, 0x98, 0x0018 },	/* 400         0.0   */
-	{ 0x2, 0x98, 0x3015 },	/* 400         3.5   */
-	{ 0x2, 0x98, 0x6012 },	/* 400         6.0   */
-	{ 0x2, 0x98, 0x900F },	/* 400         9.5   */
-	{ 0xB, 0x70, 0x0018 },	/* 600         0.0   */
-	{ 0xB, 0x70, 0x3015 },	/* 600         3.5   */
-	{ 0xB, 0x70, 0x6012 },	/* 600         6.0   */
-	{ 0x5, 0x00, 0x0018 },	/* 800         0.0   */
-	{ 0x5, 0x00, 0x3015 },	/* 800         3.5   */
-	{ 0x6, 0x98, 0x0018 },	/* 1200        0.0   */
+static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_edp_hbr2[] = {
+						/* NT mV Trans mV db    */
+	{ 0x0, 0x7F, 0x3F, 0x00, 0x00 },	/* 200   200      0.0   */
+	{ 0x8, 0x7F, 0x38, 0x00, 0x07 },	/* 200   250      1.9   */
+	{ 0x1, 0x7F, 0x33, 0x00, 0x0C },	/* 200   300      3.5   */
+	{ 0x9, 0x7F, 0x31, 0x00, 0x0E },	/* 200   350      4.9   */
+	{ 0x8, 0x7F, 0x3F, 0x00, 0x00 },	/* 250   250      0.0   */
+	{ 0x1, 0x7F, 0x38, 0x00, 0x07 },	/* 250   300      1.6   */
+	{ 0x9, 0x7F, 0x35, 0x00, 0x0A },	/* 250   350      2.9   */
+	{ 0x1, 0x7F, 0x3F, 0x00, 0x00 },	/* 300   300      0.0   */
+	{ 0x9, 0x7F, 0x38, 0x00, 0x07 },	/* 300   350      1.3   */
+	{ 0x9, 0x7F, 0x3F, 0x00, 0x00 },	/* 350   350      0.0   */
 };
 
-/* FIXME - After table is updated in Bspec */
-/* Voltage Swing Programming for VccIO 0.85V for eDP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_edp_0_85V[] = {
-				/* Voltage mV  db    */
-	{ 0x0, 0x00, 0x00 },	/* 200         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 200         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         6.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 250         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 350         0.0   */
+static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_edp_hbr3[] = {
+						/* NT mV Trans mV db    */
+	{ 0xA, 0x35, 0x3F, 0x00, 0x00 },	/* 350   350      0.0   */
+	{ 0xA, 0x4F, 0x37, 0x00, 0x08 },	/* 350   500      3.1   */
+	{ 0xC, 0x71, 0x2F, 0x00, 0x10 },	/* 350   700      6.0   */
+	{ 0x6, 0x7F, 0x2B, 0x00, 0x14 },	/* 350   900      8.2   */
+	{ 0xA, 0x4C, 0x3F, 0x00, 0x00 },	/* 500   500      0.0   */
+	{ 0xC, 0x73, 0x34, 0x00, 0x0B },	/* 500   700      2.9   */
+	{ 0x6, 0x7F, 0x2F, 0x00, 0x10 },	/* 500   900      5.1   */
+	{ 0xC, 0x6C, 0x3C, 0x00, 0x03 },	/* 650   700      0.6   */
+	{ 0x6, 0x7F, 0x35, 0x00, 0x0A },	/* 600   900      3.5   */
+	{ 0x6, 0x7F, 0x3F, 0x00, 0x00 },	/* 900   900      0.0   */
 };
 
-/* Voltage Swing Programming for VccIO 0.95V for DP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_dp_hdmi_0_95V[] = {
-				/* Voltage mV  db    */
-	{ 0x2, 0x98, 0x0018 },	/* 400         0.0   */
-	{ 0x2, 0x98, 0x3015 },	/* 400         3.5   */
-	{ 0x2, 0x98, 0x6012 },	/* 400         6.0   */
-	{ 0x2, 0x98, 0x900F },	/* 400         9.5   */
-	{ 0x4, 0x98, 0x0018 },	/* 600         0.0   */
-	{ 0x4, 0x98, 0x3015 },	/* 600         3.5   */
-	{ 0x4, 0x98, 0x6012 },	/* 600         6.0   */
-	{ 0x5, 0x76, 0x0018 },	/* 800         0.0   */
-	{ 0x5, 0x76, 0x3015 },	/* 800         3.5   */
-	{ 0x6, 0x98, 0x0018 },	/* 1200        0.0   */
-};
-
-/* FIXME - After table is updated in Bspec */
-/* Voltage Swing Programming for VccIO 0.95V for eDP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_edp_0_95V[] = {
-				/* Voltage mV  db    */
-	{ 0x0, 0x00, 0x00 },	/* 200         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 200         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         6.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 250         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 350         0.0   */
-};
-
-/* Voltage Swing Programming for VccIO 1.05V for DP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_dp_hdmi_1_05V[] = {
-				/* Voltage mV  db    */
-	{ 0x2, 0x98, 0x0018 },	/* 400         0.0   */
-	{ 0x2, 0x98, 0x3015 },	/* 400         3.5   */
-	{ 0x2, 0x98, 0x6012 },	/* 400         6.0   */
-	{ 0x2, 0x98, 0x900F },	/* 400         9.5   */
-	{ 0x4, 0x98, 0x0018 },	/* 600         0.0   */
-	{ 0x4, 0x98, 0x3015 },	/* 600         3.5   */
-	{ 0x4, 0x98, 0x6012 },	/* 600         6.0   */
-	{ 0x5, 0x71, 0x0018 },	/* 800         0.0   */
-	{ 0x5, 0x71, 0x3015 },	/* 800         3.5   */
-	{ 0x6, 0x98, 0x0018 },	/* 1200        0.0   */
-};
-
-/* FIXME - After table is updated in Bspec */
-/* Voltage Swing Programming for VccIO 1.05V for eDP */
-static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_edp_1_05V[] = {
-				/* Voltage mV  db    */
-	{ 0x0, 0x00, 0x00 },	/* 200         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 200         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 200         6.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 250         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 250         4.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         0.0   */
-	{ 0x0, 0x00, 0x00 },	/* 300         1.5   */
-	{ 0x0, 0x00, 0x00 },	/* 350         0.0   */
+static const struct cnl_ddi_buf_trans icl_combo_phy_ddi_translations_hdmi[] = {
+						/* NT mV Trans mV db    */
+	{ 0xA, 0x60, 0x3F, 0x00, 0x00 },	/* 450   450      0.0   */
+	{ 0xB, 0x73, 0x36, 0x00, 0x09 },	/* 450   650      3.2   */
+	{ 0x6, 0x7F, 0x31, 0x00, 0x0E },	/* 450   850      5.5   */
+	{ 0xB, 0x73, 0x3F, 0x00, 0x00 },	/* 650   650      0.0   ALS */
+	{ 0x6, 0x7F, 0x37, 0x00, 0x08 },	/* 650   850      2.3   */
+	{ 0x6, 0x7F, 0x3F, 0x00, 0x00 },	/* 850   850      0.0   */
+	{ 0x6, 0x7F, 0x35, 0x00, 0x0A },	/* 600   850      3.0   */
 };
 
 struct icl_mg_phy_ddi_buf_trans {
@@ -871,43 +826,23 @@ cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
 	}
 }
 
-static const struct icl_combo_phy_ddi_buf_trans *
+static const struct cnl_ddi_buf_trans *
 icl_get_combo_buf_trans(struct drm_i915_private *dev_priv, enum port port,
-			int type, int *n_entries)
+			int type, int rate, int *n_entries)
 {
-	u32 voltage = I915_READ(ICL_PORT_COMP_DW3(port)) & VOLTAGE_INFO_MASK;
-
-	if (type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.low_vswing) {
-		switch (voltage) {
-		case VOLTAGE_INFO_0_85V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_0_85V);
-			return icl_combo_phy_ddi_translations_edp_0_85V;
-		case VOLTAGE_INFO_0_95V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_0_95V);
-			return icl_combo_phy_ddi_translations_edp_0_95V;
-		case VOLTAGE_INFO_1_05V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_1_05V);
-			return icl_combo_phy_ddi_translations_edp_1_05V;
-		default:
-			MISSING_CASE(voltage);
-			return NULL;
-		}
-	} else {
-		switch (voltage) {
-		case VOLTAGE_INFO_0_85V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hdmi_0_85V);
-			return icl_combo_phy_ddi_translations_dp_hdmi_0_85V;
-		case VOLTAGE_INFO_0_95V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hdmi_0_95V);
-			return icl_combo_phy_ddi_translations_dp_hdmi_0_95V;
-		case VOLTAGE_INFO_1_05V:
-			*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hdmi_1_05V);
-			return icl_combo_phy_ddi_translations_dp_hdmi_1_05V;
-		default:
-			MISSING_CASE(voltage);
-			return NULL;
-		}
+	if (type == INTEL_OUTPUT_HDMI) {
+		*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
+		return icl_combo_phy_ddi_translations_hdmi;
+	} else if (rate > 540000 && type == INTEL_OUTPUT_EDP) {
+		*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
+		return icl_combo_phy_ddi_translations_edp_hbr3;
+	} else if (type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.low_vswing) {
+		*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
+		return icl_combo_phy_ddi_translations_edp_hbr2;
 	}
+
+	*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
+	return icl_combo_phy_ddi_translations_dp_hbr2;
 }
 
 static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port port)
@@ -918,8 +853,8 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por
 
 	if (IS_ICELAKE(dev_priv)) {
 		if (intel_port_is_combophy(dev_priv, port))
-			icl_get_combo_buf_trans(dev_priv, port,
-						INTEL_OUTPUT_HDMI, &n_entries);
+			icl_get_combo_buf_trans(dev_priv, port, INTEL_OUTPUT_HDMI,
+						0, &n_entries);
 		else
 			n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations);
 		default_entry = n_entries - 1;
@@ -2275,13 +2210,14 @@ static void bxt_ddi_vswing_sequence(struct intel_encoder *encoder,
 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
 	enum port port = encoder->port;
 	int n_entries;
 
 	if (IS_ICELAKE(dev_priv)) {
 		if (intel_port_is_combophy(dev_priv, port))
 			icl_get_combo_buf_trans(dev_priv, port, encoder->type,
-						&n_entries);
+						intel_dp->link_rate, &n_entries);
 		else
 			n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations);
 	} else if (IS_CANNONLAKE(dev_priv)) {
@@ -2462,14 +2398,15 @@ static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder,
 }
 
 static void icl_ddi_combo_vswing_program(struct drm_i915_private *dev_priv,
-					 u32 level, enum port port, int type)
+					u32 level, enum port port, int type,
+					int rate)
 {
-	const struct icl_combo_phy_ddi_buf_trans *ddi_translations = NULL;
+	const struct cnl_ddi_buf_trans *ddi_translations = NULL;
 	u32 n_entries, val;
 	int ln;
 
 	ddi_translations = icl_get_combo_buf_trans(dev_priv, port, type,
-						   &n_entries);
+						   rate, &n_entries);
 	if (!ddi_translations)
 		return;
 
@@ -2478,34 +2415,23 @@ static void icl_ddi_combo_vswing_program(struct drm_i915_private *dev_priv,
 		level = n_entries - 1;
 	}
 
-	/* Set PORT_TX_DW5 Rterm Sel to 110b. */
+	/* Set PORT_TX_DW5 */
 	val = I915_READ(ICL_PORT_TX_DW5_LN0(port));
-	val &= ~RTERM_SELECT_MASK;
+	val &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK |
+		  TAP2_DISABLE | TAP3_DISABLE);
+	val |= SCALING_MODE_SEL(0x2);
 	val |= RTERM_SELECT(0x6);
-	I915_WRITE(ICL_PORT_TX_DW5_GRP(port), val);
-
-	/* Program PORT_TX_DW5 */
-	val = I915_READ(ICL_PORT_TX_DW5_LN0(port));
-	/* Set DisableTap2 and DisableTap3 if MIPI DSI
-	 * Clear DisableTap2 and DisableTap3 for all other Ports
-	 */
-	if (type == INTEL_OUTPUT_DSI) {
-		val |= TAP2_DISABLE;
-		val |= TAP3_DISABLE;
-	} else {
-		val &= ~TAP2_DISABLE;
-		val &= ~TAP3_DISABLE;
-	}
+	val |= TAP3_DISABLE;
 	I915_WRITE(ICL_PORT_TX_DW5_GRP(port), val);
 
 	/* Program PORT_TX_DW2 */
 	val = I915_READ(ICL_PORT_TX_DW2_LN0(port));
 	val &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK |
 		 RCOMP_SCALAR_MASK);
-	val |= SWING_SEL_UPPER(ddi_translations[level].dw2_swing_select);
-	val |= SWING_SEL_LOWER(ddi_translations[level].dw2_swing_select);
+	val |= SWING_SEL_UPPER(ddi_translations[level].dw2_swing_sel);
+	val |= SWING_SEL_LOWER(ddi_translations[level].dw2_swing_sel);
 	/* Program Rcomp scalar for every table entry */
-	val |= RCOMP_SCALAR(ddi_translations[level].dw2_swing_scalar);
+	val |= RCOMP_SCALAR(0x98);
 	I915_WRITE(ICL_PORT_TX_DW2_GRP(port), val);
 
 	/* Program PORT_TX_DW4 */
@@ -2514,9 +2440,17 @@ static void icl_ddi_combo_vswing_program(struct drm_i915_private *dev_priv,
 		val = I915_READ(ICL_PORT_TX_DW4_LN(port, ln));
 		val &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK |
 			 CURSOR_COEFF_MASK);
-		val |= ddi_translations[level].dw4_scaling;
+		val |= POST_CURSOR_1(ddi_translations[level].dw4_post_cursor_1);
+		val |= POST_CURSOR_2(ddi_translations[level].dw4_post_cursor_2);
+		val |= CURSOR_COEFF(ddi_translations[level].dw4_cursor_coeff);
 		I915_WRITE(ICL_PORT_TX_DW4_LN(port, ln), val);
 	}
+
+	/* Program PORT_TX_DW7 */
+	val = I915_READ(ICL_PORT_TX_DW7_LN0(port));
+	val &= ~N_SCALAR_MASK;
+	val |= N_SCALAR(ddi_translations[level].dw7_n_scalar);
+	I915_WRITE(ICL_PORT_TX_DW7_GRP(port), val);
 }
 
 static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
@@ -2581,7 +2515,7 @@ static void icl_combo_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	I915_WRITE(ICL_PORT_TX_DW5_GRP(port), val);
 
 	/* 5. Program swing and de-emphasis */
-	icl_ddi_combo_vswing_program(dev_priv, level, port, type);
+	icl_ddi_combo_vswing_program(dev_priv, level, port, type, rate);
 
 	/* 6. Set training enable to trigger update */
 	val = I915_READ(ICL_PORT_TX_DW5_LN0(port));
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62484e129563..9b76c23226a7 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -304,9 +304,11 @@ static int cnl_max_source_rate(struct intel_dp *intel_dp)
 static int icl_max_source_rate(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
 	enum port port = dig_port->base.port;
 
-	if (port == PORT_B)
+	if (intel_port_is_combophy(dev_priv, port) &&
+	    !intel_dp_is_edp(intel_dp))
 		return 540000;
 
 	return 810000;

From 060f23225d8203b8cd9e412d984e5237e63c83dc Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 18 Dec 2018 10:27:12 +0000
Subject: [PATCH 051/118] drm/i915: Apply missed interrupt after reset w/a to
 all ringbuffer gen
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Having completed a test run of gem_eio across all machines in CI we also
observe the phenomenon (of lost interrupts after resetting the GPU) on
gen3 machines as well as the previously sighted gen6/gen7. Let's apply
the same HWSTAM workaround that was effective for gen6+ for all, as
although we haven't seen the same failure on gen4/5 it seems prudent to
keep the code the same.

As a consequence we can remove the extra setting of HWSTAM and apply the
register from a single site.

v2: Delazy and move the HWSTAM into its own function
v3: Mask off all HWSP writes on driver unload and engine cleanup.
v4: And what about the physical hwsp?
v5: No, engine->init_hw() is not called from driver_init_hw(), don't be
daft. Really scrub HWSTAM as early as we can in driver_init_mmio()
v6: Rename set_hwsp as it was setting the mask not the hwsp register.
v7: Ville pointed out that although vcs(bsd) was introduced for g4x/ilk,
per-engine HWSTAM was not introduced until gen6!

References: https://bugs.freedesktop.org/show_bug.cgi?id=108735
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181218102712.11058-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_irq.c         |   9 ---
 drivers/gpu/drm/i915/intel_engine_cs.c  |  31 ++++++++
 drivers/gpu/drm/i915/intel_lrc.c        |   2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c | 101 +++++++++++++++---------
 drivers/gpu/drm/i915/intel_ringbuffer.h |   2 +
 5 files changed, 96 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index e2dac9b5f4ce..0c7fc9890891 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3586,9 +3586,6 @@ static void ironlake_irq_reset(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
-	if (IS_GEN(dev_priv, 5))
-		I915_WRITE(HWSTAM, 0xffffffff);
-
 	GEN3_IRQ_RESET(DE);
 	if (IS_GEN(dev_priv, 7))
 		I915_WRITE(GEN7_ERR_INT, 0xffffffff);
@@ -4368,8 +4365,6 @@ static void i8xx_irq_reset(struct drm_device *dev)
 
 	i9xx_pipestat_irq_reset(dev_priv);
 
-	I915_WRITE16(HWSTAM, 0xffff);
-
 	GEN2_IRQ_RESET();
 }
 
@@ -4537,8 +4532,6 @@ static void i915_irq_reset(struct drm_device *dev)
 
 	i9xx_pipestat_irq_reset(dev_priv);
 
-	I915_WRITE(HWSTAM, 0xffffffff);
-
 	GEN3_IRQ_RESET();
 }
 
@@ -4648,8 +4641,6 @@ static void i965_irq_reset(struct drm_device *dev)
 
 	i9xx_pipestat_irq_reset(dev_priv);
 
-	I915_WRITE(HWSTAM, 0xffffffff);
-
 	GEN3_IRQ_RESET();
 }
 
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 66d0ad9c36c4..561b474cbab1 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -261,6 +261,31 @@ static void __sprint_engine_name(char *name, const struct engine_info *info)
 			 info->instance) >= INTEL_ENGINE_CS_MAX_NAME);
 }
 
+void intel_engine_set_hwsp_writemask(struct intel_engine_cs *engine, u32 mask)
+{
+	struct drm_i915_private *dev_priv = engine->i915;
+	i915_reg_t hwstam;
+
+	/*
+	 * Though they added more rings on g4x/ilk, they did not add
+	 * per-engine HWSTAM until gen6.
+	 */
+	if (INTEL_GEN(dev_priv) < 6 && engine->class != RENDER_CLASS)
+		return;
+
+	hwstam = RING_HWSTAM(engine->mmio_base);
+	if (INTEL_GEN(dev_priv) >= 3)
+		I915_WRITE(hwstam, mask);
+	else
+		I915_WRITE16(hwstam, mask);
+}
+
+static void intel_engine_sanitize_mmio(struct intel_engine_cs *engine)
+{
+	/* Mask off all writes into the unknown HWSP */
+	intel_engine_set_hwsp_writemask(engine, ~0u);
+}
+
 static int
 intel_engine_setup(struct drm_i915_private *dev_priv,
 		   enum intel_engine_id id)
@@ -312,6 +337,9 @@ intel_engine_setup(struct drm_i915_private *dev_priv,
 
 	ATOMIC_INIT_NOTIFIER_HEAD(&engine->context_status_notifier);
 
+	/* Scrub mmio state on takeover */
+	intel_engine_sanitize_mmio(engine);
+
 	dev_priv->engine_class[info->class][info->instance] = engine;
 	dev_priv->engine[id] = engine;
 	return 0;
@@ -495,6 +523,9 @@ void intel_engine_setup_common(struct intel_engine_cs *engine)
 
 static void cleanup_status_page(struct intel_engine_cs *engine)
 {
+	/* Prevent writes into HWSP after returning the page to the system */
+	intel_engine_set_hwsp_writemask(engine, ~0u);
+
 	if (HWS_NEEDS_PHYSICAL(engine->i915)) {
 		void *addr = fetch_and_zero(&engine->status_page.page_addr);
 
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index f16fb30da64f..4762c1e5b9e7 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1655,7 +1655,7 @@ static void enable_execlists(struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *dev_priv = engine->i915;
 
-	I915_WRITE(RING_HWSTAM(engine->mmio_base), 0xffffffff);
+	intel_engine_set_hwsp_writemask(engine, ~0u); /* HWSTAM */
 
 	/*
 	 * Make sure we're not enabling the new 12-deep CSB
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index fdeca2b877c9..65fd92eb071d 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -379,11 +379,25 @@ gen7_render_ring_flush(struct i915_request *rq, u32 mode)
 	return 0;
 }
 
-static void ring_setup_phys_status_page(struct intel_engine_cs *engine)
+static void set_hwstam(struct intel_engine_cs *engine, u32 mask)
+{
+	/*
+	 * Keep the render interrupt unmasked as this papers over
+	 * lost interrupts following a reset.
+	 */
+	if (engine->class == RENDER_CLASS) {
+		if (INTEL_GEN(engine->i915) >= 6)
+			mask &= ~BIT(0);
+		else
+			mask &= ~I915_USER_INTERRUPT;
+	}
+
+	intel_engine_set_hwsp_writemask(engine, mask);
+}
+
+static void set_hws_pga(struct intel_engine_cs *engine, phys_addr_t phys)
 {
 	struct drm_i915_private *dev_priv = engine->i915;
-	struct page *page = virt_to_page(engine->status_page.page_addr);
-	phys_addr_t phys = PFN_PHYS(page_to_pfn(page));
 	u32 addr;
 
 	addr = lower_32_bits(phys);
@@ -393,12 +407,22 @@ static void ring_setup_phys_status_page(struct intel_engine_cs *engine)
 	I915_WRITE(HWS_PGA, addr);
 }
 
-static void intel_ring_setup_status_page(struct intel_engine_cs *engine)
+static void ring_setup_phys_status_page(struct intel_engine_cs *engine)
+{
+	struct page *page = virt_to_page(engine->status_page.page_addr);
+	phys_addr_t phys = PFN_PHYS(page_to_pfn(page));
+
+	set_hws_pga(engine, phys);
+	set_hwstam(engine, ~0u);
+}
+
+static void set_hwsp(struct intel_engine_cs *engine, u32 offset)
 {
 	struct drm_i915_private *dev_priv = engine->i915;
-	i915_reg_t mmio;
+	i915_reg_t hwsp;
 
-	/* The ring status page addresses are no longer next to the rest of
+	/*
+	 * The ring status page addresses are no longer next to the rest of
 	 * the ring registers as of gen7.
 	 */
 	if (IS_GEN(dev_priv, 7)) {
@@ -410,56 +434,55 @@ static void intel_ring_setup_status_page(struct intel_engine_cs *engine)
 		default:
 			GEM_BUG_ON(engine->id);
 		case RCS:
-			mmio = RENDER_HWS_PGA_GEN7;
+			hwsp = RENDER_HWS_PGA_GEN7;
 			break;
 		case BCS:
-			mmio = BLT_HWS_PGA_GEN7;
+			hwsp = BLT_HWS_PGA_GEN7;
 			break;
 		case VCS:
-			mmio = BSD_HWS_PGA_GEN7;
+			hwsp = BSD_HWS_PGA_GEN7;
 			break;
 		case VECS:
-			mmio = VEBOX_HWS_PGA_GEN7;
+			hwsp = VEBOX_HWS_PGA_GEN7;
 			break;
 		}
 	} else if (IS_GEN(dev_priv, 6)) {
-		mmio = RING_HWS_PGA_GEN6(engine->mmio_base);
+		hwsp = RING_HWS_PGA_GEN6(engine->mmio_base);
 	} else {
-		mmio = RING_HWS_PGA(engine->mmio_base);
+		hwsp = RING_HWS_PGA(engine->mmio_base);
 	}
 
-	if (INTEL_GEN(dev_priv) >= 6) {
-		u32 mask = ~0u;
+	I915_WRITE(hwsp, offset);
+	POSTING_READ(hwsp);
+}
 
-		/*
-		 * Keep the render interrupt unmasked as this papers over
-		 * lost interrupts following a reset.
-		 */
-		if (engine->id == RCS)
-			mask &= ~BIT(0);
+static void flush_cs_tlb(struct intel_engine_cs *engine)
+{
+	struct drm_i915_private *dev_priv = engine->i915;
+	i915_reg_t instpm = RING_INSTPM(engine->mmio_base);
 
-		I915_WRITE(RING_HWSTAM(engine->mmio_base), mask);
-	}
+	if (!IS_GEN_RANGE(dev_priv, 6, 7))
+		return;
 
-	I915_WRITE(mmio, engine->status_page.ggtt_offset);
-	POSTING_READ(mmio);
+	/* ring should be idle before issuing a sync flush*/
+	WARN_ON((I915_READ_MODE(engine) & MODE_IDLE) == 0);
 
-	/* Flush the TLB for this page */
-	if (IS_GEN_RANGE(dev_priv, 6, 7)) {
-		i915_reg_t reg = RING_INSTPM(engine->mmio_base);
+	I915_WRITE(instpm,
+		   _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
+				      INSTPM_SYNC_FLUSH));
+	if (intel_wait_for_register(dev_priv,
+				    instpm, INSTPM_SYNC_FLUSH, 0,
+				    1000))
+		DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n",
+			  engine->name);
+}
 
-		/* ring should be idle before issuing a sync flush*/
-		WARN_ON((I915_READ_MODE(engine) & MODE_IDLE) == 0);
+static void ring_setup_status_page(struct intel_engine_cs *engine)
+{
+	set_hwsp(engine, engine->status_page.ggtt_offset);
+	set_hwstam(engine, ~0u);
 
-		I915_WRITE(reg,
-			   _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
-					      INSTPM_SYNC_FLUSH));
-		if (intel_wait_for_register(dev_priv,
-					    reg, INSTPM_SYNC_FLUSH, 0,
-					    1000))
-			DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n",
-				  engine->name);
-	}
+	flush_cs_tlb(engine);
 }
 
 static bool stop_ring(struct intel_engine_cs *engine)
@@ -529,7 +552,7 @@ static int init_ring_common(struct intel_engine_cs *engine)
 	if (HWS_NEEDS_PHYSICAL(dev_priv))
 		ring_setup_phys_status_page(engine);
 	else
-		intel_ring_setup_status_page(engine);
+		ring_setup_status_page(engine);
 
 	intel_engine_reset_breadcrumbs(engine);
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 1ae74e579386..6b41b9ce5f5b 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -903,6 +903,8 @@ int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine);
 int intel_engine_stop_cs(struct intel_engine_cs *engine);
 void intel_engine_cancel_stop_cs(struct intel_engine_cs *engine);
 
+void intel_engine_set_hwsp_writemask(struct intel_engine_cs *engine, u32 mask);
+
 u64 intel_engine_get_active_head(const struct intel_engine_cs *engine);
 u64 intel_engine_get_last_batch_head(const struct intel_engine_cs *engine);
 

From f0236a852cd78b3a0ac03fd99b4c75bef778bc37 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 14 Dec 2018 20:27:00 +0200
Subject: [PATCH 052/118] drm/i915/icl: Add a debug print for TypeC port
 disconnection
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

It's useful to see at which point a TypeC port gets disconnected, so add
a debug print for it.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-2-imre.deak@intel.com
---
 drivers/gpu/drm/i915/intel_dp.c | 34 +++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 9b76c23226a7..3afc3215692b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5069,28 +5069,38 @@ static bool icl_combo_port_connected(struct drm_i915_private *dev_priv,
 	return I915_READ(SDEISR) & SDE_DDI_HOTPLUG_ICP(port);
 }
 
+static const char *tc_type_name(enum tc_port_type type)
+{
+	static const char * const names[] = {
+		[TC_PORT_UNKNOWN] = "unknown",
+		[TC_PORT_LEGACY] = "legacy",
+		[TC_PORT_TYPEC] = "typec",
+		[TC_PORT_TBT] = "tbt",
+	};
+
+	if (WARN_ON(type >= ARRAY_SIZE(names)))
+		type = TC_PORT_UNKNOWN;
+
+	return names[type];
+}
+
 static void icl_update_tc_port_type(struct drm_i915_private *dev_priv,
 				    struct intel_digital_port *intel_dig_port,
 				    bool is_legacy, bool is_typec, bool is_tbt)
 {
 	enum port port = intel_dig_port->base.port;
 	enum tc_port_type old_type = intel_dig_port->tc_type;
-	const char *type_str;
 
 	WARN_ON(is_legacy + is_typec + is_tbt != 1);
 
-	if (is_legacy) {
+	if (is_legacy)
 		intel_dig_port->tc_type = TC_PORT_LEGACY;
-		type_str = "legacy";
-	} else if (is_typec) {
+	else if (is_typec)
 		intel_dig_port->tc_type = TC_PORT_TYPEC;
-		type_str = "typec";
-	} else if (is_tbt) {
+	else if (is_tbt)
 		intel_dig_port->tc_type = TC_PORT_TBT;
-		type_str = "tbt";
-	} else {
+	else
 		return;
-	}
 
 	/* Types are not supposed to be changed at runtime. */
 	WARN_ON(old_type != TC_PORT_UNKNOWN &&
@@ -5098,7 +5108,7 @@ static void icl_update_tc_port_type(struct drm_i915_private *dev_priv,
 
 	if (old_type != intel_dig_port->tc_type)
 		DRM_DEBUG_KMS("Port %c has TC type %s\n", port_name(port),
-			      type_str);
+			      tc_type_name(intel_dig_port->tc_type));
 }
 
 static void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
@@ -5190,6 +5200,10 @@ static void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
 		I915_WRITE(PORT_TX_DFLEXDPCSSS, val);
 	}
 
+	DRM_DEBUG_KMS("Port %c TC type %s disconnected\n",
+		      port_name(dig_port->base.port),
+		      tc_type_name(dig_port->tc_type));
+
 	dig_port->tc_type = TC_PORT_UNKNOWN;
 }
 

From 38b3416f3c2f1dafcf84a8c54eeee9f3bc50ffaa Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 14 Dec 2018 20:27:01 +0200
Subject: [PATCH 053/118] drm/i915/bios: Parse the VBT TypeC and Thunderbolt
 port flags
MIME-Version: 1.0
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This is needed by the next patch to determine if a DDI TypeC port is
physically wired to a legacy DP or legacy HDMI connector or if the port
is wired to a USB-C/Thunderbolt connector.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-3-imre.deak@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h   |  2 ++
 drivers/gpu/drm/i915/intel_bios.c | 11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c34198f51b13..815db160b966 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -935,6 +935,8 @@ struct ddi_vbt_port_info {
 	uint8_t supports_hdmi:1;
 	uint8_t supports_dp:1;
 	uint8_t supports_edp:1;
+	uint8_t supports_typec_usb:1;
+	uint8_t supports_tbt:1;
 
 	uint8_t alternate_aux_channel;
 	uint8_t alternate_ddc_pin;
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 7b7e7abfa259..764d84d4109b 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1386,8 +1386,15 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
 	info->supports_dp = is_dp;
 	info->supports_edp = is_edp;
 
-	DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d\n",
-		      port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt);
+	if (bdb_version >= 195)
+		info->supports_typec_usb = child->dp_usb_type_c;
+
+	if (bdb_version >= 209)
+		info->supports_tbt = child->tbt;
+
+	DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d TCUSB:%d TBT:%d\n",
+		      port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt,
+		      info->supports_typec_usb, info->supports_tbt);
 
 	if (is_edp && is_dvi)
 		DRM_DEBUG_KMS("Internal DP port %c is TMDS compatible\n",

From f6bff60e927b2f1e2bc87a6b7f412b87bf289712 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 14 Dec 2018 20:27:02 +0200
Subject: [PATCH 054/118] drm/i915/icl: Fix HPD handling for TypeC legacy ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Atm HPD disconnect events on TypeC ports will break things, since we'll
switch the TypeC mode (between legacy and disconnected modes as well as
among USB DP alternate, Thunderbolt alternate and disconnected modes) on
the fly from the HPD disconnect interrupt work while the port may be
still active.

Even if the port happens to be not active during the disconnect we'd
still have a problem during a subsequent modeset or AUX transfer that
could happen regardless of the port's connected state. For instance the
system resume display mode restore code and userspace could perform a
modeset on the port or userspace could start an AUX transfer even if the
port is in disconnected state.

To fix this keep TypeC legacy ports in legacy mode whenever we're not
suspended. This mode is a static configuration as opposed to the
Thunderbolt and USB DP alternate modes between which we can switch
dynamically.

We determine if a TypeC port is legacy (wired to a legacy HDMI or a
legacy DP connector) via the VBT DDI port specific USB-TypeC and
Thunderbolt flags. If both these flags are cleared then the port is
configured for legacy mode.

On such legacy ports we'll run the TypeC PHY connect sequence explicitly
during driver loading and system resume (vs. running the sequence during
HPD processing). The connect will succeed even if the display is not
connected to begin with (or disappears during the suspended state) since
for legacy ports the PORT_TX_DFLEXDPPMS / DP_PHY_MODE_STATUS_COMPLETED
flag is always set (as opposed to the USB DP alternate mode where it
gets set only when a display is connected).

Correspondingly run the TypeC PHY disconnect sequence during system
suspend and driver unloading. For the unloading case I had to split
up intel_dp_encoder_destroy() to be able to have the 1. flush any
pending encoder work, 2. disconnect TC PHY, 3. call DRM core cleanup and
kfree on the encoder object.

For now run the PHY disconnect during suspend only for TypeC legacy
ports. We will need to disconnect even in USB DP alternate mode in the
future, but atm we don't have a way to reconnect the port in this mode
during resume if the display disappears while being suspended. So for
now punt on this case.

Note that we do not disconnect the port during runtime suspend; in
legacy mode there are no shared HW resources (PHY lanes) with other HW
blocks (USB), so no need to release / reacquire these resources as with
USB DP alternate mode. The only reason to disconnect legacy ports during
system suspend is that the PORT_TX_DFLEXDPPMS /
DP_PHY_MODE_STATUS_COMPLETED flag must be rechecked and the port must be
connected again during system resume. We'll also have to turn the check
for this flag into a poll, after figuring out what's the proper timeout
value for it.

v2:
- Remove the redundant special casing of legacy mode when doing a
  disconnect in icl_tc_port_connected(). It's guaranteed already that we
  won't disconnect legacy ports in that function.
- Add a note about the new intel_ddi_encoder_destroy() hook.
- Reword the commit message after switching to the VBT based detection.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108070
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108924
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-4-imre.deak@intel.com
---
 drivers/gpu/drm/i915/intel_ddi.c | 63 ++++++++++++++++++++++++++++----
 drivers/gpu/drm/i915/intel_dp.c  | 21 +++++++----
 drivers/gpu/drm/i915/intel_drv.h |  5 ++-
 3 files changed, 73 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index dfd35822cdab..e3cc19e19199 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3834,9 +3834,50 @@ static bool intel_ddi_compute_config(struct intel_encoder *encoder,
 
 }
 
+static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base);
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+	intel_dp_encoder_suspend(encoder);
+
+	/*
+	 * TODO: disconnect also from USB DP alternate mode once we have a
+	 * way to handle the modeset restore in that mode during resume
+	 * even if the sink has disappeared while being suspended.
+	 */
+	if (dig_port->tc_legacy_port)
+		icl_tc_phy_disconnect(i915, dig_port);
+}
+
+static void intel_ddi_encoder_reset(struct drm_encoder *drm_encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(drm_encoder);
+	struct drm_i915_private *i915 = to_i915(drm_encoder->dev);
+
+	if (intel_port_is_tc(i915, dig_port->base.port))
+		intel_digital_port_connected(&dig_port->base);
+
+	intel_dp_encoder_reset(drm_encoder);
+}
+
+static void intel_ddi_encoder_destroy(struct drm_encoder *encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+	struct drm_i915_private *i915 = to_i915(encoder->dev);
+
+	intel_dp_encoder_flush_work(encoder);
+
+	if (intel_port_is_tc(i915, dig_port->base.port))
+		icl_tc_phy_disconnect(i915, dig_port);
+
+	drm_encoder_cleanup(encoder);
+	kfree(dig_port);
+}
+
 static const struct drm_encoder_funcs intel_ddi_funcs = {
-	.reset = intel_dp_encoder_reset,
-	.destroy = intel_dp_encoder_destroy,
+	.reset = intel_ddi_encoder_reset,
+	.destroy = intel_ddi_encoder_destroy,
 };
 
 static struct intel_connector *
@@ -4080,16 +4121,16 @@ intel_ddi_max_lanes(struct intel_digital_port *intel_dport)
 
 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 {
+	struct ddi_vbt_port_info *port_info =
+		&dev_priv->vbt.ddi_port_info[port];
 	struct intel_digital_port *intel_dig_port;
 	struct intel_encoder *intel_encoder;
 	struct drm_encoder *encoder;
 	bool init_hdmi, init_dp, init_lspcon = false;
 	enum pipe pipe;
 
-
-	init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi ||
-		     dev_priv->vbt.ddi_port_info[port].supports_hdmi);
-	init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp;
+	init_hdmi = port_info->supports_dvi || port_info->supports_hdmi;
+	init_dp = port_info->supports_dp;
 
 	if (intel_bios_is_lspcon_present(dev_priv, port)) {
 		/*
@@ -4130,7 +4171,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	intel_encoder->post_disable = intel_ddi_post_disable;
 	intel_encoder->get_hw_state = intel_ddi_get_hw_state;
 	intel_encoder->get_config = intel_ddi_get_config;
-	intel_encoder->suspend = intel_dp_encoder_suspend;
+	intel_encoder->suspend = intel_ddi_encoder_suspend;
 	intel_encoder->get_power_domains = intel_ddi_get_power_domains;
 	intel_encoder->type = INTEL_OUTPUT_DDI;
 	intel_encoder->power_domain = intel_port_to_power_domain(port);
@@ -4149,6 +4190,10 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	intel_dig_port->max_lanes = intel_ddi_max_lanes(intel_dig_port);
 	intel_dig_port->aux_ch = intel_bios_port_aux_ch(dev_priv, port);
 
+	intel_dig_port->tc_legacy_port = intel_port_is_tc(dev_priv, port) &&
+					 !port_info->supports_typec_usb &&
+					 !port_info->supports_tbt;
+
 	switch (port) {
 	case PORT_A:
 		intel_dig_port->ddi_io_power_domain =
@@ -4207,6 +4252,10 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	}
 
 	intel_infoframe_init(intel_dig_port);
+
+	if (intel_port_is_tc(dev_priv, port))
+		intel_digital_port_connected(intel_encoder);
+
 	return;
 
 err:
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3afc3215692b..a9f22a366337 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5111,9 +5111,6 @@ static void icl_update_tc_port_type(struct drm_i915_private *dev_priv,
 			      tc_type_name(intel_dig_port->tc_type));
 }
 
-static void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
-				  struct intel_digital_port *dig_port);
-
 /*
  * This function implements the first part of the Connect Flow described by our
  * specification, Gen11 TypeC Programming chapter. The rest of the flow (reading
@@ -5148,6 +5145,7 @@ static bool icl_tc_phy_connect(struct drm_i915_private *dev_priv,
 	val = I915_READ(PORT_TX_DFLEXDPPMS);
 	if (!(val & DP_PHY_MODE_STATUS_COMPLETED(tc_port))) {
 		DRM_DEBUG_KMS("DP PHY for TC port %d not ready\n", tc_port);
+		WARN_ON(dig_port->tc_legacy_port);
 		return false;
 	}
 
@@ -5179,8 +5177,8 @@ static bool icl_tc_phy_connect(struct drm_i915_private *dev_priv,
  * See the comment at the connect function. This implements the Disconnect
  * Flow.
  */
-static void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
-				  struct intel_digital_port *dig_port)
+void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
+			   struct intel_digital_port *dig_port)
 {
 	enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port);
 
@@ -5225,7 +5223,8 @@ static bool icl_tc_port_connected(struct drm_i915_private *dev_priv,
 	bool is_legacy, is_typec, is_tbt;
 	u32 dpsp;
 
-	is_legacy = I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port);
+	is_legacy = intel_dig_port->tc_legacy_port ||
+		I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port);
 
 	/*
 	 * The spec says we shouldn't be using the ISR bits for detecting
@@ -5237,6 +5236,7 @@ static bool icl_tc_port_connected(struct drm_i915_private *dev_priv,
 
 	if (!is_legacy && !is_typec && !is_tbt) {
 		icl_tc_phy_disconnect(dev_priv, intel_dig_port);
+
 		return false;
 	}
 
@@ -5545,7 +5545,7 @@ intel_dp_connector_unregister(struct drm_connector *connector)
 	intel_connector_unregister(connector);
 }
 
-void intel_dp_encoder_destroy(struct drm_encoder *encoder)
+void intel_dp_encoder_flush_work(struct drm_encoder *encoder)
 {
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
@@ -5568,9 +5568,14 @@ void intel_dp_encoder_destroy(struct drm_encoder *encoder)
 	}
 
 	intel_dp_aux_fini(intel_dp);
+}
+
+static void intel_dp_encoder_destroy(struct drm_encoder *encoder)
+{
+	intel_dp_encoder_flush_work(encoder);
 
 	drm_encoder_cleanup(encoder);
-	kfree(intel_dig_port);
+	kfree(enc_to_dig_port(encoder));
 }
 
 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index cb3a055f18c8..1028af8ec2eb 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1237,6 +1237,7 @@ struct intel_digital_port {
 	/* Used for DP and ICL+ TypeC/DP and TypeC/HDMI ports. */
 	enum aux_ch aux_ch;
 	enum intel_display_power_domain ddi_io_power_domain;
+	bool tc_legacy_port:1;
 	enum tc_port_type tc_type;
 
 	void (*write_infoframe)(struct intel_encoder *encoder,
@@ -1809,7 +1810,7 @@ void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
 					   bool enable);
 void intel_dp_encoder_reset(struct drm_encoder *encoder);
 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
-void intel_dp_encoder_destroy(struct drm_encoder *encoder);
+void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
 bool intel_dp_compute_config(struct intel_encoder *encoder,
 			     struct intel_crtc_state *pipe_config,
 			     struct drm_connector_state *conn_state);
@@ -1877,6 +1878,8 @@ bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
 int intel_dp_link_required(int pixel_clock, int bpp);
 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
 bool intel_digital_port_connected(struct intel_encoder *encoder);
+void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
+			   struct intel_digital_port *dig_port);
 
 /* intel_dp_aux_backlight.c */
 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);

From 2a041c97c3bceab8b7f133658c22659e4a81bd75 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 14 Dec 2018 20:27:03 +0200
Subject: [PATCH 055/118] drm/i915/icl: Add fallback detection method for TypeC
 legacy ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add a fallback detection method for TypeC legacy ports in case the
VBT port information used to detect normally such ports is
incorrect.

For the fallback method we use the TypeC legacy mode specific HPD
interrupt flag which should only be raised for a legacy port.

WARN if the VBT port info is incorrect.

In a case where we'd detect the port in a contradicting way both as a
legacy and also as a USB DP and/or TBT alternate port treat the port
as legacy (by also emitting a WARN from icl_update_tc_port_type).

v2:
- Repurpose the detection as a fallback method instead of using
  it only for the DP legacy case. By now we should normally use VBT to
  detect DP legacy ports as well.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> (v1)
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-5-imre.deak@intel.com
---
 drivers/gpu/drm/i915/intel_dp.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index a9f22a366337..5b601b754707 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5223,8 +5223,14 @@ static bool icl_tc_port_connected(struct drm_i915_private *dev_priv,
 	bool is_legacy, is_typec, is_tbt;
 	u32 dpsp;
 
-	is_legacy = intel_dig_port->tc_legacy_port ||
-		I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port);
+	/*
+	 * WARN if we got a legacy port HPD, but VBT didn't mark the port as
+	 * legacy. Treat the port as legacy from now on.
+	 */
+	if (WARN_ON(!intel_dig_port->tc_legacy_port &&
+		    I915_READ(SDEISR) & SDE_TC_HOTPLUG_ICP(tc_port)))
+		intel_dig_port->tc_legacy_port = true;
+	is_legacy = intel_dig_port->tc_legacy_port;
 
 	/*
 	 * The spec says we shouldn't be using the ISR bits for detecting

From 6afe8925a297a0458248e5e8b13dab91e782337e Mon Sep 17 00:00:00 2001
From: Manasi Navare <manasi.d.navare@intel.com>
Date: Wed, 19 Dec 2018 15:51:20 -0800
Subject: [PATCH 056/118] drm/i915/dsc: Fix the deadlock in dsc debugfs node

The DSC debugfs node causes a possible deadlock situation. This patch
resets the try_again at the beginning of loop to fix this.

Fixes: e845f099f1c6 ('drm/i915/dsc: Add Per connector debugfs node for DSC support/enable')
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109097
Cc: Lyude Paul <lyude@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181219235120.21816-1-manasi.d.navare@intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 77486a614614..aca26a25ed50 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -5108,6 +5108,7 @@ static int i915_dsc_fec_support_show(struct seq_file *m, void *data)
 	drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
 
 	do {
+		try_again = false;
 		ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
 				       &ctx);
 		if (ret) {

From 50c42fc90b7e1f1800f2d883ef86770e9cb6251e Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu, 20 Dec 2018 16:17:19 +0100
Subject: [PATCH 057/118] drm/i915: Disable FBC on fastset if necessary, v2.

Without this, we will get a dmesg-warn when enable_fbc is cleared on a fastset:
WARN_ON(!crtc_state->enable_fbc)
WARNING: CPU: 0 PID: 1090 at drivers/gpu/drm/i915/intel_fbc.c:1091 intel_fbc_enable+0x2ce/0x580 [i915]
RIP: 0010:intel_fbc_enable+0x2ce/0x580 [i915]
Call Trace:
 ? __mutex_unlock_slowpath+0x46/0x2b0
 intel_update_crtc+0x6f/0x2b0 [i915]
 skl_update_crtcs+0x1d1/0x2b0 [i915]
 intel_atomic_commit_tail+0x1ea/0xdb0 [i915]
 intel_atomic_commit+0x244/0x330 [i915]
 drm_mode_atomic_ioctl+0x85d/0x950
 ? drm_atomic_set_property+0x970/0x970
 drm_ioctl_kernel+0x81/0xf0
 drm_ioctl+0x2de/0x390
 ? drm_atomic_set_property+0x970/0x970
 ? __handle_mm_fault+0x81b/0xfc0
 do_vfs_ioctl+0xa0/0x6e0
 ? __do_page_fault+0x2a5/0x550
 ksys_ioctl+0x35/0x60
 __x64_sys_ioctl+0x11/0x20
 do_syscall_64+0x55/0x190
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Changes since v1:
- Move intel_fbc_disable to intel_update_crtc() (Hans)

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220151719.30586-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/gpu/drm/i915/intel_display.c | 4 +++-
 drivers/gpu/drm/i915/intel_fbc.c     | 2 --
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3b7094822aa9..a0ec74e1e8e1 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12752,7 +12752,9 @@ static void intel_update_crtc(struct drm_crtc *crtc,
 				       pipe_config);
 	}
 
-	if (new_plane_state)
+	if (pipe_config->update_pipe && !pipe_config->enable_fbc)
+		intel_fbc_disable(intel_crtc);
+	else if (new_plane_state)
 		intel_fbc_enable(intel_crtc, pipe_config, new_plane_state);
 
 	intel_begin_crtc_commit(crtc, old_crtc_state);
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 1d3ff026d1bc..ccd5e110a19c 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -1129,8 +1129,6 @@ void intel_fbc_disable(struct intel_crtc *crtc)
 	if (!fbc_supported(dev_priv))
 		return;
 
-	WARN_ON(crtc->active);
-
 	mutex_lock(&fbc->lock);
 	if (fbc->crtc == crtc)
 		__intel_fbc_disable(dev_priv);

From a5b79d34000b8f32c84be19e0565187e9613e5e9 Mon Sep 17 00:00:00 2001
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue, 13 Nov 2018 17:24:32 -0800
Subject: [PATCH 058/118] drm/i915: don't apply Display WAs 1125 and 1126 to
 GLK/CNL+
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

BSpec does not show these WAs as applicable to GLK, and for CNL it
only shows them applicable for a super early pre-production stepping
we shouldn't be caring about anymore. Remove these so we can avoid
them on ICL too.

v2: Change how we check for gen9 display platforms (Ville).

Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181114012432.21809-1-paulo.r.zanoni@intel.com
---
 drivers/gpu/drm/i915/intel_pm.c | 43 ++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b11fac679e10..2a6ffb8b975a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4730,28 +4730,31 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *cstate,
 	res_lines = div_round_up_fixed16(selected_result,
 					 wp->plane_blocks_per_line);
 
-	/* Display WA #1125: skl,bxt,kbl,glk */
-	if (level == 0 && wp->rc_surface)
-		res_blocks += fixed16_to_u32_round_up(wp->y_tile_minimum);
+	if (IS_GEN9_BC(dev_priv) || IS_BROXTON(dev_priv)) {
+		/* Display WA #1125: skl,bxt,kbl */
+		if (level == 0 && wp->rc_surface)
+			res_blocks +=
+				fixed16_to_u32_round_up(wp->y_tile_minimum);
 
-	/* Display WA #1126: skl,bxt,kbl,glk */
-	if (level >= 1 && level <= 7) {
-		if (wp->y_tiled) {
-			res_blocks += fixed16_to_u32_round_up(
-							wp->y_tile_minimum);
-			res_lines += wp->y_min_scanlines;
-		} else {
-			res_blocks++;
+		/* Display WA #1126: skl,bxt,kbl */
+		if (level >= 1 && level <= 7) {
+			if (wp->y_tiled) {
+				res_blocks +=
+				    fixed16_to_u32_round_up(wp->y_tile_minimum);
+				res_lines += wp->y_min_scanlines;
+			} else {
+				res_blocks++;
+			}
+
+			/*
+			 * Make sure result blocks for higher latency levels are
+			 * atleast as high as level below the current level.
+			 * Assumption in DDB algorithm optimization for special
+			 * cases. Also covers Display WA #1125 for RC.
+			 */
+			if (result_prev->plane_res_b > res_blocks)
+				res_blocks = result_prev->plane_res_b;
 		}
-
-		/*
-		 * Make sure result blocks for higher latency levels are atleast
-		 * as high as level below the current level.
-		 * Assumption in DDB algorithm optimization for special cases.
-		 * Also covers Display WA #1125 for RC.
-		 */
-		if (result_prev->plane_res_b > res_blocks)
-			res_blocks = result_prev->plane_res_b;
 	}
 
 	/* The number of lines are ignored for the level 0 watermark. */

From ce98528b3f619825c81f66c515c9ff07eda70f48 Mon Sep 17 00:00:00 2001
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Fri, 21 Dec 2018 11:12:44 -0800
Subject: [PATCH 059/118] drm/i915: Update DRIVER_DATE to 20181221

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 815db160b966..436c508f1b9d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -90,8 +90,8 @@
 
 #define DRIVER_NAME		"i915"
 #define DRIVER_DESC		"Intel Graphics"
-#define DRIVER_DATE		"20181204"
-#define DRIVER_TIMESTAMP	1543944377
+#define DRIVER_DATE		"20181221"
+#define DRIVER_TIMESTAMP	1545419564
 
 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
  * WARN_ON()) for hw state sanity checks to check for unexpected conditions

From 17960f35f146258a5e6e4b1dc83bd6f16aa349a5 Mon Sep 17 00:00:00 2001
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Fri, 21 Dec 2018 12:04:38 -0800
Subject: [PATCH 060/118] drm/i915: Update DRIVER_DATE to 20181221

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 436c508f1b9d..d44255a8655e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -91,7 +91,7 @@
 #define DRIVER_NAME		"i915"
 #define DRIVER_DESC		"Intel Graphics"
 #define DRIVER_DATE		"20181221"
-#define DRIVER_TIMESTAMP	1545419564
+#define DRIVER_TIMESTAMP	1545422678
 
 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
  * WARN_ON()) for hw state sanity checks to check for unexpected conditions

From d4de753526f4d99f541f1b6ed1d963005c09700c Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 22 Dec 2018 03:06:23 +0000
Subject: [PATCH 061/118] drm/i915: Unwind failure on pinning the gen7 ppgtt

If we fail to pin the ggtt vma slot for the ppgtt page tables, we need
to unwind the locals before reporting the error. Or else on subsequent
attempts to bind the page tables into the ggtt, we will already believe
that the vma has been pinned and continue on blithely. If something else
should happen to be at that location, choas ensues.

Fixes: a2bbf7148342 ("drm/i915/gtt: Only keep gen6 page directories pinned while active")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: <stable@vger.kernel.org> # v4.19+
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181222030623.21710-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 6e31745f6156..4ed2f3e61347 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2073,6 +2073,7 @@ static struct i915_vma *pd_vma_create(struct gen6_hw_ppgtt *ppgtt, int size)
 int gen6_ppgtt_pin(struct i915_hw_ppgtt *base)
 {
 	struct gen6_hw_ppgtt *ppgtt = to_gen6_ppgtt(base);
+	int err;
 
 	/*
 	 * Workaround the limited maximum vma->pin_count and the aliasing_ppgtt
@@ -2088,9 +2089,17 @@ int gen6_ppgtt_pin(struct i915_hw_ppgtt *base)
 	 * allocator works in address space sizes, so it's multiplied by page
 	 * size. We allocate at the top of the GTT to avoid fragmentation.
 	 */
-	return i915_vma_pin(ppgtt->vma,
-			    0, GEN6_PD_ALIGN,
-			    PIN_GLOBAL | PIN_HIGH);
+	err = i915_vma_pin(ppgtt->vma,
+			   0, GEN6_PD_ALIGN,
+			   PIN_GLOBAL | PIN_HIGH);
+	if (err)
+		goto unpin;
+
+	return 0;
+
+unpin:
+	ppgtt->pin_count = 0;
+	return err;
 }
 
 void gen6_ppgtt_unpin(struct i915_hw_ppgtt *base)

From 608ed4ab240f2d09f2fc1e5f8631dfe8570f9f80 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 20 Dec 2018 14:21:18 +0100
Subject: [PATCH 062/118] drm/i915: Add an update_pipe callback to
 intel_encoder and call this on fastsets (v2)

When we are doing a fastset (needs_modeset=false, update_pipe=true) we
may need to update some encoder-level things such as checking that PSR
is enabled.

This commit adds an update_pipe callback to intel_encoder and a new
intel_encoders_update_pipe helper which calls this for all encoders
connected to a crtc. The new intel_encoders_update_pipe helper is called
from intel_update_crtc when doing a fastset.

Changes in v2:
-Name the new encoder callback update_pipe instead of just update

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220132120.15318-1-hdegoede@redhat.com
---
 drivers/gpu/drm/i915/intel_display.c | 23 +++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h     |  3 +++
 2 files changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a0ec74e1e8e1..f0b480fba980 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5578,6 +5578,26 @@ static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
 	}
 }
 
+static void intel_encoders_update_pipe(struct drm_crtc *crtc,
+				       struct intel_crtc_state *crtc_state,
+				       struct drm_atomic_state *old_state)
+{
+	struct drm_connector_state *conn_state;
+	struct drm_connector *conn;
+	int i;
+
+	for_each_new_connector_in_state(old_state, conn, conn_state, i) {
+		struct intel_encoder *encoder =
+			to_intel_encoder(conn_state->best_encoder);
+
+		if (conn_state->crtc != crtc)
+			continue;
+
+		if (encoder->update_pipe)
+			encoder->update_pipe(encoder, crtc_state, conn_state);
+	}
+}
+
 static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
 				 struct drm_atomic_state *old_state)
 {
@@ -12750,6 +12770,9 @@ static void intel_update_crtc(struct drm_crtc *crtc,
 	} else {
 		intel_pre_plane_update(to_intel_crtc_state(old_crtc_state),
 				       pipe_config);
+
+		if (pipe_config->update_pipe)
+			intel_encoders_update_pipe(crtc, pipe_config, state);
 	}
 
 	if (pipe_config->update_pipe && !pipe_config->enable_fbc)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 1028af8ec2eb..1a11c2beb7f3 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -243,6 +243,9 @@ struct intel_encoder {
 	void (*post_pll_disable)(struct intel_encoder *,
 				 const struct intel_crtc_state *,
 				 const struct drm_connector_state *);
+	void (*update_pipe)(struct intel_encoder *,
+			    const struct intel_crtc_state *,
+			    const struct drm_connector_state *);
 	/* Read out the current hw state of this connector, returning true if
 	 * the encoder is active. If the encoder is enabled it also set the pipe
 	 * it is connected to in the pipe parameter. */

From f69a0d71d49cbd22dab85e9654ec7a8fc7a7d057 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 20 Dec 2018 14:21:19 +0100
Subject: [PATCH 063/118] drm/i915: Allow calling intel_edp_drrs_enable twice

Do not make it an error to call intel_edp_drrs_enable while drrs has
already been enabled, instead exit silently in this case.

This is a preparation patch for ensuring that DRRS is enabled on fastsets.

Note that the removed WARN_ON could also be triggered from userspace
through the i915_drrs_ctl debugfs entry which was added by
commit 35954e88bc50 ("drm/i915: Runtime disable for eDP DRRS")

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220132120.15318-2-hdegoede@redhat.com
---
 drivers/gpu/drm/i915/intel_dp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 5b601b754707..62fd11540942 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -6432,8 +6432,8 @@ void intel_edp_drrs_enable(struct intel_dp *intel_dp,
 	}
 
 	mutex_lock(&dev_priv->drrs.mutex);
-	if (WARN_ON(dev_priv->drrs.dp)) {
-		DRM_ERROR("DRRS already enabled\n");
+	if (dev_priv->drrs.dp) {
+		DRM_DEBUG_KMS("DRRS already enabled\n");
 		goto unlock;
 	}
 

From 2ef82327c2c762517caacf063766a02efc978ccf Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 20 Dec 2018 14:21:20 +0100
Subject: [PATCH 064/118] drm/i915: DDI: call intel_psr_ and _edp_drrs_enable()
 on pipe updates (v2)

Call intel_psr_enable() and intel_edp_drrs_enable() on pipe updates to make
sure that we enable PSR / DRRS (when applicable) on fastsets.

Note calling these functions when PSR / DRRS has already been enabled is a
no-op, so it is safe to do this on every encoder->update_pipe callback.

Changes in v2:
-Merge the patches adding the intel_psr_enable() and intel_edp_drrs_enable()
 calls into a single patch

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220132120.15318-3-hdegoede@redhat.com
---
 drivers/gpu/drm/i915/intel_ddi.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index e3cc19e19199..fdf57f451b72 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3537,6 +3537,24 @@ static void intel_disable_ddi(struct intel_encoder *encoder,
 		intel_disable_ddi_dp(encoder, old_crtc_state, old_conn_state);
 }
 
+static void intel_ddi_update_pipe_dp(struct intel_encoder *encoder,
+				     const struct intel_crtc_state *crtc_state,
+				     const struct drm_connector_state *conn_state)
+{
+	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
+
+	intel_psr_enable(intel_dp, crtc_state);
+	intel_edp_drrs_enable(intel_dp, crtc_state);
+}
+
+static void intel_ddi_update_pipe(struct intel_encoder *encoder,
+				  const struct intel_crtc_state *crtc_state,
+				  const struct drm_connector_state *conn_state)
+{
+	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+		intel_ddi_update_pipe_dp(encoder, crtc_state, conn_state);
+}
+
 static void intel_ddi_set_fia_lane_count(struct intel_encoder *encoder,
 					 const struct intel_crtc_state *pipe_config,
 					 enum port port)
@@ -4169,6 +4187,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	intel_encoder->pre_enable = intel_ddi_pre_enable;
 	intel_encoder->disable = intel_disable_ddi;
 	intel_encoder->post_disable = intel_ddi_post_disable;
+	intel_encoder->update_pipe = intel_ddi_update_pipe;
 	intel_encoder->get_hw_state = intel_ddi_get_hw_state;
 	intel_encoder->get_config = intel_ddi_get_config;
 	intel_encoder->suspend = intel_ddi_encoder_suspend;

From eb3e1e3383e88735e149842c0049ea8e53dea8f4 Mon Sep 17 00:00:00 2001
From: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Date: Tue, 25 Dec 2018 18:53:40 +0530
Subject: [PATCH 065/118] drm/i915: Remove duplicate header from i915_request.h

Remove i915_scheduler.h which is included more than once

Signed-off-by: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181225132340.GA2584@hp-pavilion-15-notebook-pc-brajeswar
---
 drivers/gpu/drm/i915/i915_request.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 90e9d170a0cd..d014b0605445 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -30,7 +30,6 @@
 #include "i915_gem.h"
 #include "i915_scheduler.h"
 #include "i915_sw_fence.h"
-#include "i915_scheduler.h"
 
 #include <uapi/drm/i915_drm.h>
 

From 28e52b98b98a9e2cbe9ecd4f04f4d723fd767f56 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 27 Dec 2018 12:15:49 +0000
Subject: [PATCH 066/118] drm/i915: Remove debugfs/i915_ppgtt_info

The information presented here is not relevant to current development.
We can either use the context information, but more often we want to
inspect the active gpu state.

The ulterior motive is to eradicate dev->filelist.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181227121549.29139-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_debugfs.c | 119 ------------------------
 drivers/gpu/drm/i915/i915_gem_gtt.c | 134 ----------------------------
 drivers/gpu/drm/i915/i915_gem_gtt.h |   2 -
 3 files changed, 255 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index aca26a25ed50..2d29ce630c0e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2076,124 +2076,6 @@ static int i915_swizzle_info(struct seq_file *m, void *data)
 	return 0;
 }
 
-static int per_file_ctx(int id, void *ptr, void *data)
-{
-	struct i915_gem_context *ctx = ptr;
-	struct seq_file *m = data;
-	struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
-
-	if (!ppgtt) {
-		seq_printf(m, "  no ppgtt for context %d\n",
-			   ctx->user_handle);
-		return 0;
-	}
-
-	if (i915_gem_context_is_default(ctx))
-		seq_puts(m, "  default context:\n");
-	else
-		seq_printf(m, "  context %d:\n", ctx->user_handle);
-	ppgtt->debug_dump(ppgtt, m);
-
-	return 0;
-}
-
-static void gen8_ppgtt_info(struct seq_file *m,
-			    struct drm_i915_private *dev_priv)
-{
-	struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-	int i;
-
-	if (!ppgtt)
-		return;
-
-	for_each_engine(engine, dev_priv, id) {
-		seq_printf(m, "%s\n", engine->name);
-		for (i = 0; i < 4; i++) {
-			u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
-			pdp <<= 32;
-			pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i));
-			seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
-		}
-	}
-}
-
-static void gen6_ppgtt_info(struct seq_file *m,
-			    struct drm_i915_private *dev_priv)
-{
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-
-	if (IS_GEN(dev_priv, 6))
-		seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
-
-	for_each_engine(engine, dev_priv, id) {
-		seq_printf(m, "%s\n", engine->name);
-		if (IS_GEN(dev_priv, 7))
-			seq_printf(m, "GFX_MODE: 0x%08x\n",
-				   I915_READ(RING_MODE_GEN7(engine)));
-		seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
-			   I915_READ(RING_PP_DIR_BASE(engine)));
-		seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n",
-			   I915_READ(RING_PP_DIR_BASE_READ(engine)));
-		seq_printf(m, "PP_DIR_DCLV: 0x%08x\n",
-			   I915_READ(RING_PP_DIR_DCLV(engine)));
-	}
-	if (dev_priv->mm.aliasing_ppgtt) {
-		struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
-
-		seq_puts(m, "aliasing PPGTT:\n");
-		seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
-
-		ppgtt->debug_dump(ppgtt, m);
-	}
-
-	seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
-}
-
-static int i915_ppgtt_info(struct seq_file *m, void *data)
-{
-	struct drm_i915_private *dev_priv = node_to_i915(m->private);
-	struct drm_device *dev = &dev_priv->drm;
-	struct drm_file *file;
-	int ret;
-
-	mutex_lock(&dev->filelist_mutex);
-	ret = mutex_lock_interruptible(&dev->struct_mutex);
-	if (ret)
-		goto out_unlock;
-
-	intel_runtime_pm_get(dev_priv);
-
-	if (INTEL_GEN(dev_priv) >= 8)
-		gen8_ppgtt_info(m, dev_priv);
-	else if (INTEL_GEN(dev_priv) >= 6)
-		gen6_ppgtt_info(m, dev_priv);
-
-	list_for_each_entry_reverse(file, &dev->filelist, lhead) {
-		struct drm_i915_file_private *file_priv = file->driver_priv;
-		struct task_struct *task;
-
-		task = get_pid_task(file->pid, PIDTYPE_PID);
-		if (!task) {
-			ret = -ESRCH;
-			goto out_rpm;
-		}
-		seq_printf(m, "\nproc: %s\n", task->comm);
-		put_task_struct(task);
-		idr_for_each(&file_priv->context_idr, per_file_ctx,
-			     (void *)(unsigned long)m);
-	}
-
-out_rpm:
-	intel_runtime_pm_put(dev_priv);
-	mutex_unlock(&dev->struct_mutex);
-out_unlock:
-	mutex_unlock(&dev->filelist_mutex);
-	return ret;
-}
-
 static int count_irq_waiters(struct drm_i915_private *i915)
 {
 	struct intel_engine_cs *engine;
@@ -4912,7 +4794,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
 	{"i915_context_status", i915_context_status, 0},
 	{"i915_forcewake_domains", i915_forcewake_domains, 0},
 	{"i915_swizzle_info", i915_swizzle_info, 0},
-	{"i915_ppgtt_info", i915_ppgtt_info, 0},
 	{"i915_llc", i915_llc, 0},
 	{"i915_edp_psr_status", i915_edp_psr_status, 0},
 	{"i915_energy_uJ", i915_energy_uJ, 0},
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 4ed2f3e61347..d4c5973ea33d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1488,84 +1488,6 @@ static int gen8_ppgtt_alloc_4lvl(struct i915_address_space *vm,
 	return -ENOMEM;
 }
 
-static void gen8_dump_pdp(struct i915_hw_ppgtt *ppgtt,
-			  struct i915_page_directory_pointer *pdp,
-			  u64 start, u64 length,
-			  gen8_pte_t scratch_pte,
-			  struct seq_file *m)
-{
-	struct i915_address_space *vm = &ppgtt->vm;
-	struct i915_page_directory *pd;
-	u32 pdpe;
-
-	gen8_for_each_pdpe(pd, pdp, start, length, pdpe) {
-		struct i915_page_table *pt;
-		u64 pd_len = length;
-		u64 pd_start = start;
-		u32 pde;
-
-		if (pdp->page_directory[pdpe] == ppgtt->vm.scratch_pd)
-			continue;
-
-		seq_printf(m, "\tPDPE #%d\n", pdpe);
-		gen8_for_each_pde(pt, pd, pd_start, pd_len, pde) {
-			u32 pte;
-			gen8_pte_t *pt_vaddr;
-
-			if (pd->page_table[pde] == ppgtt->vm.scratch_pt)
-				continue;
-
-			pt_vaddr = kmap_atomic_px(pt);
-			for (pte = 0; pte < GEN8_PTES; pte += 4) {
-				u64 va = (pdpe << GEN8_PDPE_SHIFT |
-					  pde << GEN8_PDE_SHIFT |
-					  pte << GEN8_PTE_SHIFT);
-				int i;
-				bool found = false;
-
-				for (i = 0; i < 4; i++)
-					if (pt_vaddr[pte + i] != scratch_pte)
-						found = true;
-				if (!found)
-					continue;
-
-				seq_printf(m, "\t\t0x%llx [%03d,%03d,%04d]: =", va, pdpe, pde, pte);
-				for (i = 0; i < 4; i++) {
-					if (pt_vaddr[pte + i] != scratch_pte)
-						seq_printf(m, " %llx", pt_vaddr[pte + i]);
-					else
-						seq_puts(m, "  SCRATCH ");
-				}
-				seq_puts(m, "\n");
-			}
-			kunmap_atomic(pt_vaddr);
-		}
-	}
-}
-
-static void gen8_dump_ppgtt(struct i915_hw_ppgtt *ppgtt, struct seq_file *m)
-{
-	struct i915_address_space *vm = &ppgtt->vm;
-	const gen8_pte_t scratch_pte = vm->scratch_pte;
-	u64 start = 0, length = ppgtt->vm.total;
-
-	if (use_4lvl(vm)) {
-		u64 pml4e;
-		struct i915_pml4 *pml4 = &ppgtt->pml4;
-		struct i915_page_directory_pointer *pdp;
-
-		gen8_for_each_pml4e(pdp, pml4, start, length, pml4e) {
-			if (pml4->pdps[pml4e] == ppgtt->vm.scratch_pdp)
-				continue;
-
-			seq_printf(m, "    PML4E #%llu\n", pml4e);
-			gen8_dump_pdp(ppgtt, pdp, start, length, scratch_pte, m);
-		}
-	} else {
-		gen8_dump_pdp(ppgtt, &ppgtt->pdp, start, length, scratch_pte, m);
-	}
-}
-
 static int gen8_preallocate_top_level_pdp(struct i915_hw_ppgtt *ppgtt)
 {
 	struct i915_address_space *vm = &ppgtt->vm;
@@ -1670,7 +1592,6 @@ static struct i915_hw_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 		gen8_ppgtt_notify_vgt(ppgtt, true);
 
 	ppgtt->vm.cleanup = gen8_ppgtt_cleanup;
-	ppgtt->debug_dump = gen8_dump_ppgtt;
 
 	ppgtt->vm.vma_ops.bind_vma    = ppgtt_bind_vma;
 	ppgtt->vm.vma_ops.unbind_vma  = ppgtt_unbind_vma;
@@ -1686,60 +1607,6 @@ static struct i915_hw_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 	return ERR_PTR(err);
 }
 
-static void gen6_dump_ppgtt(struct i915_hw_ppgtt *base, struct seq_file *m)
-{
-	struct gen6_hw_ppgtt *ppgtt = to_gen6_ppgtt(base);
-	const gen6_pte_t scratch_pte = base->vm.scratch_pte;
-	struct i915_page_table *pt;
-	u32 pte, pde;
-
-	gen6_for_all_pdes(pt, &base->pd, pde) {
-		gen6_pte_t *vaddr;
-
-		if (pt == base->vm.scratch_pt)
-			continue;
-
-		if (i915_vma_is_bound(ppgtt->vma, I915_VMA_GLOBAL_BIND)) {
-			u32 expected =
-				GEN6_PDE_ADDR_ENCODE(px_dma(pt)) |
-				GEN6_PDE_VALID;
-			u32 pd_entry = readl(ppgtt->pd_addr + pde);
-
-			if (pd_entry != expected)
-				seq_printf(m,
-					   "\tPDE #%d mismatch: Actual PDE: %x Expected PDE: %x\n",
-					   pde,
-					   pd_entry,
-					   expected);
-
-			seq_printf(m, "\tPDE: %x\n", pd_entry);
-		}
-
-		vaddr = kmap_atomic_px(base->pd.page_table[pde]);
-		for (pte = 0; pte < GEN6_PTES; pte += 4) {
-			int i;
-
-			for (i = 0; i < 4; i++)
-				if (vaddr[pte + i] != scratch_pte)
-					break;
-			if (i == 4)
-				continue;
-
-			seq_printf(m, "\t\t(%03d, %04d) %08llx: ",
-				   pde, pte,
-				   (pde * GEN6_PTES + pte) * I915_GTT_PAGE_SIZE);
-			for (i = 0; i < 4; i++) {
-				if (vaddr[pte + i] != scratch_pte)
-					seq_printf(m, " %08x", vaddr[pte + i]);
-				else
-					seq_puts(m, "  SCRATCH");
-			}
-			seq_puts(m, "\n");
-		}
-		kunmap_atomic(vaddr);
-	}
-}
-
 /* Write pde (index) from the page directory @pd to the page table @pt */
 static inline void gen6_write_pde(const struct gen6_hw_ppgtt *ppgtt,
 				  const unsigned int pde,
@@ -2136,7 +2003,6 @@ static struct i915_hw_ppgtt *gen6_ppgtt_create(struct drm_i915_private *i915)
 	ppgtt->base.vm.clear_range = gen6_ppgtt_clear_range;
 	ppgtt->base.vm.insert_entries = gen6_ppgtt_insert_entries;
 	ppgtt->base.vm.cleanup = gen6_ppgtt_cleanup;
-	ppgtt->base.debug_dump = gen6_dump_ppgtt;
 
 	ppgtt->base.vm.vma_ops.bind_vma    = ppgtt_bind_vma;
 	ppgtt->base.vm.vma_ops.unbind_vma  = ppgtt_unbind_vma;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 4874da09a3c4..e2360f16427a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -413,8 +413,6 @@ struct i915_hw_ppgtt {
 		struct i915_page_directory_pointer pdp;	/* GEN8+ */
 		struct i915_page_directory pd;		/* GEN6-7 */
 	};
-
-	void (*debug_dump)(struct i915_hw_ppgtt *ppgtt, struct seq_file *m);
 };
 
 struct gen6_hw_ppgtt {

From 6879216897b7dd4cfeaaed8e80e0374f260fc594 Mon Sep 17 00:00:00 2001
From: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Date: Tue, 25 Dec 2018 19:00:56 +0530
Subject: [PATCH 067/118] drm/intel_dsi_vbt: Remove duplicate header

Remove video/mipi_display.h which is included more than once

Signed-off-by: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181225133055.GA2628@hp-pavilion-15-notebook-pc-brajeswar
---
 drivers/gpu/drm/i915/intel_dsi_vbt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c
index a1a8b3790e61..5b7e9118d97f 100644
--- a/drivers/gpu/drm/i915/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c
@@ -32,7 +32,6 @@
 #include <linux/slab.h>
 #include <video/mipi_display.h>
 #include <asm/intel-mid.h>
-#include <video/mipi_display.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
 #include "intel_dsi.h"

From b8449c43c95b5ea40ced8824d4ddea997f77b911 Mon Sep 17 00:00:00 2001
From: Young Xiao <YangX92@hotmail.com>
Date: Mon, 17 Dec 2018 12:23:03 +0000
Subject: [PATCH 068/118] drm/i915: avoid division by zero on
 skl_calc_wrpll_link

If for some unexpected reason the registers all read zero it's better
to WARN and return instead of dividing by zero and completely freezing
the machine.

See commit 0e005888b833 ("drm/i915: avoid division by zero on
cnl_calc_wrpll_link") for detail.

Signed-off-by: Young Xiao <YangX92@hotmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/SG2PR01MB2169F6E95BC8BB5E29477042ADBC0@SG2PR01MB2169.apcprd01.prod.exchangelabs.com
---
 drivers/gpu/drm/i915/intel_ddi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index fdf57f451b72..2d6ed990a232 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1296,6 +1296,9 @@ static int skl_calc_wrpll_link(struct drm_i915_private *dev_priv,
 	dco_freq += (((cfgcr1_val & DPLL_CFGCR1_DCO_FRACTION_MASK) >> 9) * 24 *
 		1000) / 0x8000;
 
+	if (WARN_ON(p0 == 0 || p1 == 0 || p2 == 0))
+		return 0;
+
 	return dco_freq / (p0 * p1 * p2 * 5);
 }
 

From 167bc759e8236f93d501253ec1a75431fedb5b3f Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 14:07:34 +0000
Subject: [PATCH 069/118] drm/i915: Restrict PSMI context load w/a to Haswell
 GT1

After we found a workaround for a hang on context load, Ben Widawsky
found confirmation that it was for an issue with waking from rc6 and
loading a context image.

The workaround from on high suggests that we should

	I915_WRITE(RING_WAIT_FOR_RC6_EXIT(engine->mmio_base),
		   _MASKED_FIELD(RING_RC6_SEL_WRITE_ADDR_MASK,
				 RING_RC6_SEL_WRITE_ADDR_UPPER_LEFT));

in our rc6 setup for Haswell GT1, but on applying that we find instead
that the machine encounters a GT forcewake error and locks up.

As we are removing HW semaphore usage in the next patch, and the
suggested workaround is no improvement, we need to
decouple the PSMI workaround from HAS_SEMAPHORES to IS_HSW_GT1.

References: 2c550183476d ("drm/i915: Disable PSMI sleep messages on all rings around context switches")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228140736.32606-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_drv.h         | 2 ++
 drivers/gpu/drm/i915/intel_ringbuffer.c | 5 +----
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d44255a8655e..936ec09c9490 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2278,6 +2278,8 @@ intel_info(const struct drm_i915_private *dev_priv)
 				 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0A00)
 #define IS_HSW_GT3(dev_priv)	(IS_HASWELL(dev_priv) && \
 				 (dev_priv)->info.gt == 3)
+#define IS_HSW_GT1(dev_priv)	(IS_HASWELL(dev_priv) && \
+				 (dev_priv)->info.gt == 1)
 /* ULX machines are also considered ULT. */
 #define IS_HSW_ULX(dev_priv)	(INTEL_DEVID(dev_priv) == 0x0A0E || \
 				 INTEL_DEVID(dev_priv) == 0x0A1E)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 65fd92eb071d..1102c2e98222 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1604,10 +1604,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 	struct intel_engine_cs *engine = rq->engine;
 	enum intel_engine_id id;
 	const int num_rings =
-		/* Use an extended w/a on gen7 if signalling from other rings */
-		(HAS_LEGACY_SEMAPHORES(i915) && IS_GEN(i915, 7)) ?
-		INTEL_INFO(i915)->num_rings - 1 :
-		0;
+		IS_HSW_GT1(i915) ? INTEL_INFO(i915)->num_rings - 1 : 0;
 	bool force_restore = false;
 	int len;
 	u32 *cs;

From 6faf5916e6beb0dedb0fcbbafbaa152adeaea758 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 14:07:35 +0000
Subject: [PATCH 070/118] drm/i915: Remove HW semaphores for gen7 inter-engine
 synchronisation

The writing is on the wall for the existence of a single execution queue
along each engine, and as a consequence we will not be able to track
dependencies along the HW queue itself, i.e. we will not be able to use
HW semaphores on gen7 as they use a global set of registers (and unlike
gen8+ we can not effectively target memory to keep per-context seqno and
dependencies).

On the positive side, when we implement request reordering for gen7 we
also can not presume a simple execution queue and would also require
removing the current semaphore generation code. So this bring us another
step closer to request reordering for ringbuffer submission!

The negative side is that using interrupts to drive inter-engine
synchronisation is much slower (4us -> 15us to do a nop on each of the 3
engines on ivb). This is much better than it was at the time of introducing
the HW semaphores and equally important userspace weaned itself off
intermixing dependent BLT/RENDER operations (the prime culprit was glyph
rendering in UXA). So while we regress the microbenchmarks, it should not
impact the user.

References: https://bugs.freedesktop.org/show_bug.cgi?id=108888
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228140736.32606-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_debugfs.c     |  19 +--
 drivers/gpu/drm/i915/i915_drv.c         |   2 +-
 drivers/gpu/drm/i915/i915_drv.h         |   3 -
 drivers/gpu/drm/i915/i915_gem.c         |   4 +-
 drivers/gpu/drm/i915/i915_request.c     | 126 +------------------
 drivers/gpu/drm/i915/i915_timeline.h    |   8 --
 drivers/gpu/drm/i915/i915_trace.h       |  29 -----
 drivers/gpu/drm/i915/intel_engine_cs.c  |  29 +----
 drivers/gpu/drm/i915/intel_hangcheck.c  | 155 ------------------------
 drivers/gpu/drm/i915/intel_ringbuffer.c | 138 ---------------------
 drivers/gpu/drm/i915/intel_ringbuffer.h |  56 +--------
 11 files changed, 12 insertions(+), 557 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 2d29ce630c0e..1269d734ade0 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1041,21 +1041,7 @@ static const struct file_operations i915_error_state_fops = {
 static int
 i915_next_seqno_set(void *data, u64 val)
 {
-	struct drm_i915_private *dev_priv = data;
-	struct drm_device *dev = &dev_priv->drm;
-	int ret;
-
-	ret = mutex_lock_interruptible(&dev->struct_mutex);
-	if (ret)
-		return ret;
-
-	intel_runtime_pm_get(dev_priv);
-	ret = i915_gem_set_global_seqno(dev, val);
-	intel_runtime_pm_put(dev_priv);
-
-	mutex_unlock(&dev->struct_mutex);
-
-	return ret;
+	return val ? 0 : -EINVAL;
 }
 
 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
@@ -4101,9 +4087,6 @@ i915_drop_caches_set(void *data, u64 val)
 						     I915_WAIT_LOCKED,
 						     MAX_SCHEDULE_TIMEOUT);
 
-		if (ret == 0 && val & DROP_RESET_SEQNO)
-			ret = i915_gem_set_global_seqno(&i915->drm, 1);
-
 		if (val & DROP_RETIRE)
 			i915_retire_requests(i915);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index caa055ac9472..dcb935338c63 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -349,7 +349,7 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
 		value = min_t(int, INTEL_PPGTT(dev_priv), I915_GEM_PPGTT_FULL);
 		break;
 	case I915_PARAM_HAS_SEMAPHORES:
-		value = HAS_LEGACY_SEMAPHORES(dev_priv);
+		value = 0;
 		break;
 	case I915_PARAM_HAS_SECURE_BATCHES:
 		value = capable(CAP_SYS_ADMIN);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 936ec09c9490..287f06b9e95a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1948,7 +1948,6 @@ struct drm_i915_private {
 		struct list_head active_rings;
 		struct list_head closed_vma;
 		u32 active_requests;
-		u32 request_serial;
 
 		/**
 		 * Is the GPU currently considered idle, or busy executing
@@ -2396,8 +2395,6 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_BLT(dev_priv)	HAS_ENGINE(dev_priv, BCS)
 #define HAS_VEBOX(dev_priv)	HAS_ENGINE(dev_priv, VECS)
 
-#define HAS_LEGACY_SEMAPHORES(dev_priv) IS_GEN(dev_priv, 7)
-
 #define HAS_LLC(dev_priv)	((dev_priv)->info.has_llc)
 #define HAS_SNOOP(dev_priv)	((dev_priv)->info.has_snoop)
 #define HAS_EDRAM(dev_priv)	(!!((dev_priv)->edram_cap & EDRAM_ENABLED))
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 39ee67e01bb7..9e65c37daa9c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3318,7 +3318,7 @@ static void nop_submit_request(struct i915_request *request)
 
 	spin_lock_irqsave(&request->engine->timeline.lock, flags);
 	__i915_request_submit(request);
-	intel_engine_init_global_seqno(request->engine, request->global_seqno);
+	intel_engine_write_global_seqno(request->engine, request->global_seqno);
 	spin_unlock_irqrestore(&request->engine->timeline.lock, flags);
 }
 
@@ -3359,7 +3359,7 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 
 	/*
 	 * Make sure no request can slip through without getting completed by
-	 * either this call here to intel_engine_init_global_seqno, or the one
+	 * either this call here to intel_engine_write_global_seqno, or the one
 	 * in nop_submit_request.
 	 */
 	synchronize_rcu();
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 8ab8e8e6a086..2cd1f51963f3 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -111,99 +111,10 @@ i915_request_remove_from_client(struct i915_request *request)
 	spin_unlock(&file_priv->mm.lock);
 }
 
-static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno)
+static void reserve_gt(struct drm_i915_private *i915)
 {
-	struct intel_engine_cs *engine;
-	struct i915_timeline *timeline;
-	enum intel_engine_id id;
-	int ret;
-
-	/* Carefully retire all requests without writing to the rings */
-	ret = i915_gem_wait_for_idle(i915,
-				     I915_WAIT_INTERRUPTIBLE |
-				     I915_WAIT_LOCKED,
-				     MAX_SCHEDULE_TIMEOUT);
-	if (ret)
-		return ret;
-
-	GEM_BUG_ON(i915->gt.active_requests);
-
-	/* If the seqno wraps around, we need to clear the breadcrumb rbtree */
-	for_each_engine(engine, i915, id) {
-		GEM_TRACE("%s seqno %d (current %d) -> %d\n",
-			  engine->name,
-			  engine->timeline.seqno,
-			  intel_engine_get_seqno(engine),
-			  seqno);
-
-		if (seqno == engine->timeline.seqno)
-			continue;
-
-		kthread_park(engine->breadcrumbs.signaler);
-
-		if (!i915_seqno_passed(seqno, engine->timeline.seqno)) {
-			/* Flush any waiters before we reuse the seqno */
-			intel_engine_disarm_breadcrumbs(engine);
-			intel_engine_init_hangcheck(engine);
-			GEM_BUG_ON(!list_empty(&engine->breadcrumbs.signals));
-		}
-
-		/* Check we are idle before we fiddle with hw state! */
-		GEM_BUG_ON(!intel_engine_is_idle(engine));
-		GEM_BUG_ON(i915_gem_active_isset(&engine->timeline.last_request));
-
-		/* Finally reset hw state */
-		intel_engine_init_global_seqno(engine, seqno);
-		engine->timeline.seqno = seqno;
-
-		kthread_unpark(engine->breadcrumbs.signaler);
-	}
-
-	list_for_each_entry(timeline, &i915->gt.timelines, link)
-		memset(timeline->global_sync, 0, sizeof(timeline->global_sync));
-
-	i915->gt.request_serial = seqno;
-
-	return 0;
-}
-
-int i915_gem_set_global_seqno(struct drm_device *dev, u32 seqno)
-{
-	struct drm_i915_private *i915 = to_i915(dev);
-
-	lockdep_assert_held(&i915->drm.struct_mutex);
-
-	if (seqno == 0)
-		return -EINVAL;
-
-	/* HWS page needs to be set less than what we will inject to ring */
-	return reset_all_global_seqno(i915, seqno - 1);
-}
-
-static int reserve_gt(struct drm_i915_private *i915)
-{
-	int ret;
-
-	/*
-	 * Reservation is fine until we may need to wrap around
-	 *
-	 * By incrementing the serial for every request, we know that no
-	 * individual engine may exceed that serial (as each is reset to 0
-	 * on any wrap). This protects even the most pessimistic of migrations
-	 * of every request from all engines onto just one.
-	 */
-	while (unlikely(++i915->gt.request_serial == 0)) {
-		ret = reset_all_global_seqno(i915, 0);
-		if (ret) {
-			i915->gt.request_serial--;
-			return ret;
-		}
-	}
-
 	if (!i915->gt.active_requests++)
 		i915_gem_unpark(i915);
-
-	return 0;
 }
 
 static void unreserve_gt(struct drm_i915_private *i915)
@@ -608,9 +519,7 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 	if (IS_ERR(ce))
 		return ERR_CAST(ce);
 
-	ret = reserve_gt(i915);
-	if (ret)
-		goto err_unpin;
+	reserve_gt(i915);
 
 	ret = intel_ring_wait_for_space(ce->ring, MIN_SPACE_FOR_ADD_REQUEST);
 	if (ret)
@@ -743,7 +652,6 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 	kmem_cache_free(i915->requests, rq);
 err_unreserve:
 	unreserve_gt(i915);
-err_unpin:
 	intel_context_unpin(ce);
 	return ERR_PTR(ret);
 }
@@ -771,34 +679,12 @@ i915_request_await_request(struct i915_request *to, struct i915_request *from)
 		ret = i915_sw_fence_await_sw_fence_gfp(&to->submit,
 						       &from->submit,
 						       I915_FENCE_GFP);
-		return ret < 0 ? ret : 0;
+	} else {
+		ret = i915_sw_fence_await_dma_fence(&to->submit,
+						    &from->fence, 0,
+						    I915_FENCE_GFP);
 	}
 
-	if (to->engine->semaphore.sync_to) {
-		u32 seqno;
-
-		GEM_BUG_ON(!from->engine->semaphore.signal);
-
-		seqno = i915_request_global_seqno(from);
-		if (!seqno)
-			goto await_dma_fence;
-
-		if (seqno <= to->timeline->global_sync[from->engine->id])
-			return 0;
-
-		trace_i915_gem_ring_sync_to(to, from);
-		ret = to->engine->semaphore.sync_to(to, from);
-		if (ret)
-			return ret;
-
-		to->timeline->global_sync[from->engine->id] = seqno;
-		return 0;
-	}
-
-await_dma_fence:
-	ret = i915_sw_fence_await_dma_fence(&to->submit,
-					    &from->fence, 0,
-					    I915_FENCE_GFP);
 	return ret < 0 ? ret : 0;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h
index ebd71b487220..38c1e15e927a 100644
--- a/drivers/gpu/drm/i915/i915_timeline.h
+++ b/drivers/gpu/drm/i915/i915_timeline.h
@@ -63,14 +63,6 @@ struct i915_timeline {
 	 * redundant and we can discard it without loss of generality.
 	 */
 	struct i915_syncmap *sync;
-	/**
-	 * Separately to the inter-context seqno map above, we track the last
-	 * barrier (e.g. semaphore wait) to the global engine timelines. Note
-	 * that this tracks global_seqno rather than the context.seqno, and
-	 * so it is subject to the limitations of hw wraparound and that we
-	 * may need to revoke global_seqno (on pre-emption).
-	 */
-	u32 global_sync[I915_NUM_ENGINES];
 
 	struct list_head link;
 	const char *name;
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index b50c6b829715..5cf378936b05 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -585,35 +585,6 @@ TRACE_EVENT(i915_gem_evict_vm,
 	    TP_printk("dev=%d, vm=%p", __entry->dev, __entry->vm)
 );
 
-TRACE_EVENT(i915_gem_ring_sync_to,
-	    TP_PROTO(struct i915_request *to, struct i915_request *from),
-	    TP_ARGS(to, from),
-
-	    TP_STRUCT__entry(
-			     __field(u32, dev)
-			     __field(u32, from_class)
-			     __field(u32, from_instance)
-			     __field(u32, to_class)
-			     __field(u32, to_instance)
-			     __field(u32, seqno)
-			     ),
-
-	    TP_fast_assign(
-			   __entry->dev = from->i915->drm.primary->index;
-			   __entry->from_class = from->engine->uabi_class;
-			   __entry->from_instance = from->engine->instance;
-			   __entry->to_class = to->engine->uabi_class;
-			   __entry->to_instance = to->engine->instance;
-			   __entry->seqno = from->global_seqno;
-			   ),
-
-	    TP_printk("dev=%u, sync-from=%u:%u, sync-to=%u:%u, seqno=%u",
-		      __entry->dev,
-		      __entry->from_class, __entry->from_instance,
-		      __entry->to_class, __entry->to_instance,
-		      __entry->seqno)
-);
-
 TRACE_EVENT(i915_request_queue,
 	    TP_PROTO(struct i915_request *rq, u32 flags),
 	    TP_ARGS(rq, flags),
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 561b474cbab1..78fc777c4bf4 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -454,25 +454,8 @@ int intel_engines_init(struct drm_i915_private *dev_priv)
 	return err;
 }
 
-void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno)
+void intel_engine_write_global_seqno(struct intel_engine_cs *engine, u32 seqno)
 {
-	struct drm_i915_private *dev_priv = engine->i915;
-
-	/* Our semaphore implementation is strictly monotonic (i.e. we proceed
-	 * so long as the semaphore value in the register/page is greater
-	 * than the sync value), so whenever we reset the seqno,
-	 * so long as we reset the tracking semaphore value to 0, it will
-	 * always be before the next request's seqno. If we don't reset
-	 * the semaphore value, then when the seqno moves backwards all
-	 * future waits will complete instantly (causing rendering corruption).
-	 */
-	if (IS_GEN_RANGE(dev_priv, 6, 7)) {
-		I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
-		I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
-		if (HAS_VEBOX(dev_priv))
-			I915_WRITE(RING_SYNC_2(engine->mmio_base), 0);
-	}
-
 	intel_write_status_page(engine, I915_GEM_HWS_INDEX, seqno);
 	clear_bit(ENGINE_IRQ_BREADCRUMB, &engine->irq_posted);
 
@@ -1300,16 +1283,6 @@ static void intel_engine_print_registers(const struct intel_engine_cs *engine,
 		drm_printf(m, "\tRING_IMR: %08x\n", I915_READ_IMR(engine));
 	}
 
-	if (HAS_LEGACY_SEMAPHORES(dev_priv)) {
-		drm_printf(m, "\tSYNC_0: 0x%08x\n",
-			   I915_READ(RING_SYNC_0(engine->mmio_base)));
-		drm_printf(m, "\tSYNC_1: 0x%08x\n",
-			   I915_READ(RING_SYNC_1(engine->mmio_base)));
-		if (HAS_VEBOX(dev_priv))
-			drm_printf(m, "\tSYNC_2: 0x%08x\n",
-				   I915_READ(RING_SYNC_2(engine->mmio_base)));
-	}
-
 	addr = intel_engine_get_active_head(engine);
 	drm_printf(m, "\tACTHD:  0x%08x_%08x\n",
 		   upper_32_bits(addr), lower_32_bits(addr));
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index 495fa145f37f..c3f929f59424 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -24,144 +24,6 @@
 
 #include "i915_drv.h"
 
-static bool
-ipehr_is_semaphore_wait(struct intel_engine_cs *engine, u32 ipehr)
-{
-	ipehr &= ~MI_SEMAPHORE_SYNC_MASK;
-	return ipehr == (MI_SEMAPHORE_MBOX | MI_SEMAPHORE_COMPARE |
-			 MI_SEMAPHORE_REGISTER);
-}
-
-static struct intel_engine_cs *
-semaphore_wait_to_signaller_ring(struct intel_engine_cs *engine, u32 ipehr,
-				 u64 offset)
-{
-	struct drm_i915_private *dev_priv = engine->i915;
-	u32 sync_bits = ipehr & MI_SEMAPHORE_SYNC_MASK;
-	struct intel_engine_cs *signaller;
-	enum intel_engine_id id;
-
-	for_each_engine(signaller, dev_priv, id) {
-		if (engine == signaller)
-			continue;
-
-		if (sync_bits == signaller->semaphore.mbox.wait[engine->hw_id])
-			return signaller;
-	}
-
-	DRM_DEBUG_DRIVER("No signaller ring found for %s, ipehr 0x%08x\n",
-			 engine->name, ipehr);
-
-	return ERR_PTR(-ENODEV);
-}
-
-static struct intel_engine_cs *
-semaphore_waits_for(struct intel_engine_cs *engine, u32 *seqno)
-{
-	struct drm_i915_private *dev_priv = engine->i915;
-	void __iomem *vaddr;
-	u32 cmd, ipehr, head;
-	u64 offset = 0;
-	int i, backwards;
-
-	/*
-	 * This function does not support execlist mode - any attempt to
-	 * proceed further into this function will result in a kernel panic
-	 * when dereferencing ring->buffer, which is not set up in execlist
-	 * mode.
-	 *
-	 * The correct way of doing it would be to derive the currently
-	 * executing ring buffer from the current context, which is derived
-	 * from the currently running request. Unfortunately, to get the
-	 * current request we would have to grab the struct_mutex before doing
-	 * anything else, which would be ill-advised since some other thread
-	 * might have grabbed it already and managed to hang itself, causing
-	 * the hang checker to deadlock.
-	 *
-	 * Therefore, this function does not support execlist mode in its
-	 * current form. Just return NULL and move on.
-	 */
-	if (engine->buffer == NULL)
-		return NULL;
-
-	ipehr = I915_READ(RING_IPEHR(engine->mmio_base));
-	if (!ipehr_is_semaphore_wait(engine, ipehr))
-		return NULL;
-
-	/*
-	 * HEAD is likely pointing to the dword after the actual command,
-	 * so scan backwards until we find the MBOX. But limit it to just 3
-	 * or 4 dwords depending on the semaphore wait command size.
-	 * Note that we don't care about ACTHD here since that might
-	 * point at at batch, and semaphores are always emitted into the
-	 * ringbuffer itself.
-	 */
-	head = I915_READ_HEAD(engine) & HEAD_ADDR;
-	backwards = (INTEL_GEN(dev_priv) >= 8) ? 5 : 4;
-	vaddr = (void __iomem *)engine->buffer->vaddr;
-
-	for (i = backwards; i; --i) {
-		/*
-		 * Be paranoid and presume the hw has gone off into the wild -
-		 * our ring is smaller than what the hardware (and hence
-		 * HEAD_ADDR) allows. Also handles wrap-around.
-		 */
-		head &= engine->buffer->size - 1;
-
-		/* This here seems to blow up */
-		cmd = ioread32(vaddr + head);
-		if (cmd == ipehr)
-			break;
-
-		head -= 4;
-	}
-
-	if (!i)
-		return NULL;
-
-	*seqno = ioread32(vaddr + head + 4) + 1;
-	return semaphore_wait_to_signaller_ring(engine, ipehr, offset);
-}
-
-static int semaphore_passed(struct intel_engine_cs *engine)
-{
-	struct drm_i915_private *dev_priv = engine->i915;
-	struct intel_engine_cs *signaller;
-	u32 seqno;
-
-	engine->hangcheck.deadlock++;
-
-	signaller = semaphore_waits_for(engine, &seqno);
-	if (signaller == NULL)
-		return -1;
-
-	if (IS_ERR(signaller))
-		return 0;
-
-	/* Prevent pathological recursion due to driver bugs */
-	if (signaller->hangcheck.deadlock >= I915_NUM_ENGINES)
-		return -1;
-
-	if (intel_engine_signaled(signaller, seqno))
-		return 1;
-
-	/* cursory check for an unkickable deadlock */
-	if (I915_READ_CTL(signaller) & RING_WAIT_SEMAPHORE &&
-	    semaphore_passed(signaller) < 0)
-		return -1;
-
-	return 0;
-}
-
-static void semaphore_clear_deadlocks(struct drm_i915_private *dev_priv)
-{
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-
-	for_each_engine(engine, dev_priv, id)
-		engine->hangcheck.deadlock = 0;
-}
-
 static bool instdone_unchanged(u32 current_instdone, u32 *old_instdone)
 {
 	u32 tmp = current_instdone | *old_instdone;
@@ -252,21 +114,6 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
 		return ENGINE_WAIT_KICK;
 	}
 
-	if (IS_GEN_RANGE(dev_priv, 6, 7) && tmp & RING_WAIT_SEMAPHORE) {
-		switch (semaphore_passed(engine)) {
-		default:
-			return ENGINE_DEAD;
-		case 1:
-			i915_handle_error(dev_priv, ALL_ENGINES, 0,
-					  "stuck semaphore on %s",
-					  engine->name);
-			I915_WRITE_CTL(engine, tmp);
-			return ENGINE_WAIT_KICK;
-		case 0:
-			return ENGINE_WAIT;
-		}
-	}
-
 	return ENGINE_DEAD;
 }
 
@@ -433,8 +280,6 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
 	for_each_engine(engine, dev_priv, id) {
 		struct intel_engine_hangcheck hc;
 
-		semaphore_clear_deadlocks(dev_priv);
-
 		hangcheck_load_sample(engine, &hc);
 		hangcheck_accumulate_sample(engine, &hc);
 		hangcheck_store_sample(engine, &hc);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1102c2e98222..588294a3bbd2 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -556,13 +556,6 @@ static int init_ring_common(struct intel_engine_cs *engine)
 
 	intel_engine_reset_breadcrumbs(engine);
 
-	if (HAS_LEGACY_SEMAPHORES(engine->i915)) {
-		I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
-		I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
-		if (HAS_VEBOX(dev_priv))
-			I915_WRITE(RING_SYNC_2(engine->mmio_base), 0);
-	}
-
 	/* Enforce ordering by reading HEAD register back */
 	I915_READ_HEAD(engine);
 
@@ -745,33 +738,6 @@ static int init_render_ring(struct intel_engine_cs *engine)
 	return 0;
 }
 
-static u32 *gen6_signal(struct i915_request *rq, u32 *cs)
-{
-	struct drm_i915_private *dev_priv = rq->i915;
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-	int num_rings = 0;
-
-	for_each_engine(engine, dev_priv, id) {
-		i915_reg_t mbox_reg;
-
-		if (!(BIT(engine->hw_id) & GEN6_SEMAPHORES_MASK))
-			continue;
-
-		mbox_reg = rq->engine->semaphore.mbox.signal[engine->hw_id];
-		if (i915_mmio_reg_valid(mbox_reg)) {
-			*cs++ = MI_LOAD_REGISTER_IMM(1);
-			*cs++ = i915_mmio_reg_offset(mbox_reg);
-			*cs++ = rq->global_seqno;
-			num_rings++;
-		}
-	}
-	if (num_rings & 1)
-		*cs++ = MI_NOOP;
-
-	return cs;
-}
-
 static void cancel_requests(struct intel_engine_cs *engine)
 {
 	struct i915_request *request;
@@ -822,39 +788,6 @@ static void i9xx_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 
 static const int i9xx_emit_breadcrumb_sz = 4;
 
-static void gen6_sema_emit_breadcrumb(struct i915_request *rq, u32 *cs)
-{
-	return i9xx_emit_breadcrumb(rq, rq->engine->semaphore.signal(rq, cs));
-}
-
-static int
-gen6_ring_sync_to(struct i915_request *rq, struct i915_request *signal)
-{
-	u32 dw1 = MI_SEMAPHORE_MBOX |
-		  MI_SEMAPHORE_COMPARE |
-		  MI_SEMAPHORE_REGISTER;
-	u32 wait_mbox = signal->engine->semaphore.mbox.wait[rq->engine->hw_id];
-	u32 *cs;
-
-	WARN_ON(wait_mbox == MI_SEMAPHORE_SYNC_INVALID);
-
-	cs = intel_ring_begin(rq, 4);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	*cs++ = dw1 | wait_mbox;
-	/* Throughout all of the GEM code, seqno passed implies our current
-	 * seqno is >= the last seqno executed. However for hardware the
-	 * comparison is strictly greater than.
-	 */
-	*cs++ = signal->global_seqno - 1;
-	*cs++ = 0;
-	*cs++ = MI_NOOP;
-	intel_ring_advance(rq, cs);
-
-	return 0;
-}
-
 static void
 gen5_seqno_barrier(struct intel_engine_cs *engine)
 {
@@ -2151,66 +2084,6 @@ static int gen6_ring_flush(struct i915_request *rq, u32 mode)
 	return gen6_flush_dw(rq, mode, MI_INVALIDATE_TLB);
 }
 
-static void intel_ring_init_semaphores(struct drm_i915_private *dev_priv,
-				       struct intel_engine_cs *engine)
-{
-	int i;
-
-	if (!HAS_LEGACY_SEMAPHORES(dev_priv))
-		return;
-
-	GEM_BUG_ON(INTEL_GEN(dev_priv) < 6);
-	engine->semaphore.sync_to = gen6_ring_sync_to;
-	engine->semaphore.signal = gen6_signal;
-
-	/*
-	 * The current semaphore is only applied on pre-gen8
-	 * platform.  And there is no VCS2 ring on the pre-gen8
-	 * platform. So the semaphore between RCS and VCS2 is
-	 * initialized as INVALID.
-	 */
-	for (i = 0; i < GEN6_NUM_SEMAPHORES; i++) {
-		static const struct {
-			u32 wait_mbox;
-			i915_reg_t mbox_reg;
-		} sem_data[GEN6_NUM_SEMAPHORES][GEN6_NUM_SEMAPHORES] = {
-			[RCS_HW] = {
-				[VCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_RV,  .mbox_reg = GEN6_VRSYNC },
-				[BCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_RB,  .mbox_reg = GEN6_BRSYNC },
-				[VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_RVE, .mbox_reg = GEN6_VERSYNC },
-			},
-			[VCS_HW] = {
-				[RCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_VR,  .mbox_reg = GEN6_RVSYNC },
-				[BCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_VB,  .mbox_reg = GEN6_BVSYNC },
-				[VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_VVE, .mbox_reg = GEN6_VEVSYNC },
-			},
-			[BCS_HW] = {
-				[RCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_BR,  .mbox_reg = GEN6_RBSYNC },
-				[VCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_BV,  .mbox_reg = GEN6_VBSYNC },
-				[VECS_HW] = { .wait_mbox = MI_SEMAPHORE_SYNC_BVE, .mbox_reg = GEN6_VEBSYNC },
-			},
-			[VECS_HW] = {
-				[RCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_VER, .mbox_reg = GEN6_RVESYNC },
-				[VCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_VEV, .mbox_reg = GEN6_VVESYNC },
-				[BCS_HW] =  { .wait_mbox = MI_SEMAPHORE_SYNC_VEB, .mbox_reg = GEN6_BVESYNC },
-			},
-		};
-		u32 wait_mbox;
-		i915_reg_t mbox_reg;
-
-		if (i == engine->hw_id) {
-			wait_mbox = MI_SEMAPHORE_SYNC_INVALID;
-			mbox_reg = GEN6_NOSYNC;
-		} else {
-			wait_mbox = sem_data[engine->hw_id][i].wait_mbox;
-			mbox_reg = sem_data[engine->hw_id][i].mbox_reg;
-		}
-
-		engine->semaphore.mbox.wait[i] = wait_mbox;
-		engine->semaphore.mbox.signal[i] = mbox_reg;
-	}
-}
-
 static void intel_ring_init_irq(struct drm_i915_private *dev_priv,
 				struct intel_engine_cs *engine)
 {
@@ -2253,7 +2126,6 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
 	GEM_BUG_ON(INTEL_GEN(dev_priv) >= 8);
 
 	intel_ring_init_irq(dev_priv, engine);
-	intel_ring_init_semaphores(dev_priv, engine);
 
 	engine->init_hw = init_ring_common;
 	engine->reset.prepare = reset_prepare;
@@ -2265,16 +2137,6 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
 
 	engine->emit_breadcrumb = i9xx_emit_breadcrumb;
 	engine->emit_breadcrumb_sz = i9xx_emit_breadcrumb_sz;
-	if (HAS_LEGACY_SEMAPHORES(dev_priv)) {
-		int num_rings;
-
-		engine->emit_breadcrumb = gen6_sema_emit_breadcrumb;
-
-		num_rings = INTEL_INFO(dev_priv)->num_rings - 1;
-		engine->emit_breadcrumb_sz += num_rings * 3;
-		if (num_rings & 1)
-			engine->emit_breadcrumb_sz++;
-	}
 
 	engine->set_default_submission = i9xx_set_default_submission;
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 6b41b9ce5f5b..c927bdfb1ed0 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -510,60 +510,6 @@ struct intel_engine_cs {
 	void		(*irq_seqno_barrier)(struct intel_engine_cs *engine);
 	void		(*cleanup)(struct intel_engine_cs *engine);
 
-	/* GEN8 signal/wait table - never trust comments!
-	 *	  signal to	signal to    signal to   signal to      signal to
-	 *	    RCS		   VCS          BCS        VECS		 VCS2
-	 *      --------------------------------------------------------------------
-	 *  RCS | NOP (0x00) | VCS (0x08) | BCS (0x10) | VECS (0x18) | VCS2 (0x20) |
-	 *	|-------------------------------------------------------------------
-	 *  VCS | RCS (0x28) | NOP (0x30) | BCS (0x38) | VECS (0x40) | VCS2 (0x48) |
-	 *	|-------------------------------------------------------------------
-	 *  BCS | RCS (0x50) | VCS (0x58) | NOP (0x60) | VECS (0x68) | VCS2 (0x70) |
-	 *	|-------------------------------------------------------------------
-	 * VECS | RCS (0x78) | VCS (0x80) | BCS (0x88) |  NOP (0x90) | VCS2 (0x98) |
-	 *	|-------------------------------------------------------------------
-	 * VCS2 | RCS (0xa0) | VCS (0xa8) | BCS (0xb0) | VECS (0xb8) | NOP  (0xc0) |
-	 *	|-------------------------------------------------------------------
-	 *
-	 * Generalization:
-	 *  f(x, y) := (x->id * NUM_RINGS * seqno_size) + (seqno_size * y->id)
-	 *  ie. transpose of g(x, y)
-	 *
-	 *	 sync from	sync from    sync from    sync from	sync from
-	 *	    RCS		   VCS          BCS        VECS		 VCS2
-	 *      --------------------------------------------------------------------
-	 *  RCS | NOP (0x00) | VCS (0x28) | BCS (0x50) | VECS (0x78) | VCS2 (0xa0) |
-	 *	|-------------------------------------------------------------------
-	 *  VCS | RCS (0x08) | NOP (0x30) | BCS (0x58) | VECS (0x80) | VCS2 (0xa8) |
-	 *	|-------------------------------------------------------------------
-	 *  BCS | RCS (0x10) | VCS (0x38) | NOP (0x60) | VECS (0x88) | VCS2 (0xb0) |
-	 *	|-------------------------------------------------------------------
-	 * VECS | RCS (0x18) | VCS (0x40) | BCS (0x68) |  NOP (0x90) | VCS2 (0xb8) |
-	 *	|-------------------------------------------------------------------
-	 * VCS2 | RCS (0x20) | VCS (0x48) | BCS (0x70) | VECS (0x98) |  NOP (0xc0) |
-	 *	|-------------------------------------------------------------------
-	 *
-	 * Generalization:
-	 *  g(x, y) := (y->id * NUM_RINGS * seqno_size) + (seqno_size * x->id)
-	 *  ie. transpose of f(x, y)
-	 */
-	struct {
-#define GEN6_SEMAPHORE_LAST	VECS_HW
-#define GEN6_NUM_SEMAPHORES	(GEN6_SEMAPHORE_LAST + 1)
-#define GEN6_SEMAPHORES_MASK	GENMASK(GEN6_SEMAPHORE_LAST, 0)
-		struct {
-			/* our mbox written by others */
-			u32		wait[GEN6_NUM_SEMAPHORES];
-			/* mboxes this ring signals to */
-			i915_reg_t	signal[GEN6_NUM_SEMAPHORES];
-		} mbox;
-
-		/* AKA wait() */
-		int	(*sync_to)(struct i915_request *rq,
-				   struct i915_request *signal);
-		u32	*(*signal)(struct i915_request *rq, u32 *cs);
-	} semaphore;
-
 	struct intel_engine_execlists execlists;
 
 	/* Contexts are pinned whilst they are active on the GPU. The last
@@ -889,7 +835,7 @@ intel_ring_set_tail(struct intel_ring *ring, unsigned int tail)
 	return tail;
 }
 
-void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno);
+void intel_engine_write_global_seqno(struct intel_engine_cs *engine, u32 seqno);
 
 void intel_engine_setup_common(struct intel_engine_cs *engine);
 int intel_engine_init_common(struct intel_engine_cs *engine);

From 95898ed6856eaa06331feeab75ec5f5a59af08b0 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 14:07:36 +0000
Subject: [PATCH 071/118] drm/i915: Drop debugfs/i915_next_seqno

Having just gutted the implementation as there is no global seqno
tracking, remove the vestigal write-only stub for debugfs/i915_next_seqno.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228140736.32606-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_debugfs.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1269d734ade0..b89abbba4604 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1038,16 +1038,6 @@ static const struct file_operations i915_error_state_fops = {
 };
 #endif
 
-static int
-i915_next_seqno_set(void *data, u64 val)
-{
-	return val ? 0 : -EINVAL;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
-			NULL, i915_next_seqno_set,
-			"0x%llx\n");
-
 static int i915_frequency_info(struct seq_file *m, void *unused)
 {
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -4811,7 +4801,6 @@ static const struct i915_debugfs_files {
 	{"i915_gpu_info", &i915_gpu_info_fops},
 #endif
 	{"i915_fifo_underrun_reset", &i915_fifo_underrun_reset_ops},
-	{"i915_next_seqno", &i915_next_seqno_fops},
 	{"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
 	{"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
 	{"i915_cur_wm_latency", &i915_cur_wm_latency_fops},

From 6a6237293d0c02e0902b29a86e3e353e21f7bea6 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 15:31:13 +0000
Subject: [PATCH 072/118] drm/i915/execlists: Pull the render flush into
 breadcrumb emission

In preparation for removing the manual EMIT_FLUSH prior to emitting the
breadcrumb implement the flush inline with writing the breadcrumb for
execlists. Using one command to both flush and write the breadcrumb is
naturally a tiny bit faster than splitting it into two.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228153114.4948-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_guc_submission.c |  3 ++-
 drivers/gpu/drm/i915/intel_lrc.c            | 12 ++++++++++--
 drivers/gpu/drm/i915/intel_ringbuffer.h     |  5 ++---
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 1570dcbe249c..ab1c49b106f2 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -572,7 +572,8 @@ static void inject_preempt_context(struct work_struct *work)
 		if (engine->id == RCS) {
 			cs = gen8_emit_ggtt_write_rcs(cs,
 						      GUC_PREEMPT_FINISHED,
-						      addr);
+						      addr,
+						      PIPE_CONTROL_CS_STALL);
 		} else {
 			cs = gen8_emit_ggtt_write(cs,
 						  GUC_PREEMPT_FINISHED,
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 4762c1e5b9e7..2482dde6e56b 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2061,10 +2061,18 @@ static void gen8_emit_breadcrumb_rcs(struct i915_request *request, u32 *cs)
 	/* We're using qword write, seqno should be aligned to 8 bytes. */
 	BUILD_BUG_ON(I915_GEM_HWS_INDEX & 1);
 
-	cs = gen8_emit_ggtt_write_rcs(cs, request->global_seqno,
-				      intel_hws_seqno_address(request->engine));
+	cs = gen8_emit_ggtt_write_rcs(cs,
+				      request->global_seqno,
+				      intel_hws_seqno_address(request->engine),
+				      PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
+				      PIPE_CONTROL_DEPTH_CACHE_FLUSH |
+				      PIPE_CONTROL_DC_FLUSH_ENABLE |
+				      PIPE_CONTROL_FLUSH_ENABLE |
+				      PIPE_CONTROL_CS_STALL);
+
 	*cs++ = MI_USER_INTERRUPT;
 	*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
+
 	request->tail = intel_ring_offset(request, cs);
 	assert_ring_tail_valid(request->ring, request->tail);
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index c927bdfb1ed0..32606d795af3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -1003,7 +1003,7 @@ static inline u32 *gen8_emit_pipe_control(u32 *batch, u32 flags, u32 offset)
 }
 
 static inline u32 *
-gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset)
+gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset, u32 flags)
 {
 	/* We're using qword write, offset should be aligned to 8 bytes. */
 	GEM_BUG_ON(!IS_ALIGNED(gtt_offset, 8));
@@ -1013,8 +1013,7 @@ gen8_emit_ggtt_write_rcs(u32 *cs, u32 value, u32 gtt_offset)
 	 * following the batch.
 	 */
 	*cs++ = GFX_OP_PIPE_CONTROL(6);
-	*cs++ = PIPE_CONTROL_GLOBAL_GTT_IVB | PIPE_CONTROL_CS_STALL |
-		PIPE_CONTROL_QW_WRITE;
+	*cs++ = flags | PIPE_CONTROL_QW_WRITE | PIPE_CONTROL_GLOBAL_GTT_IVB;
 	*cs++ = gtt_offset;
 	*cs++ = 0;
 	*cs++ = value;

From caa5915bb3c1e61bd895383364011a8921fee053 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 15:31:14 +0000
Subject: [PATCH 073/118] drm/i915/ringbuffer: Pull the render flush into
 breadcrumb emission

In preparation for removing the manual EMIT_FLUSH prior to emitting the
breadcrumb implement the flush inline with writing the breadcrumb for
ringbuffer emission.

With a combined flush+breadcrumb, we can use a single operation to both
flush and after the flush is complete (post-sync) write the breadcrumb.
This gives us a strongly ordered operation that should be sufficient to
serialise the write before we emit the interrupt; and therefore we may
take the opportunity to remove the irq_seqno_barrier w/a for gen6+.
Although using the PIPECONTROL to write the breadcrumb is slower than
MI_STORE_DWORD_IMM, by combining the operations into one and removing the
extra flush (next patch) it is faster

For gen2-5, we simply combine the MI_FLUSH into the breadcrumb emission,
though maybe we could find a solution here to the seqno-vs-interrupt
issue on Ironlake by mixing up the flush? The answer is no, adding an
MI_FLUSH before the interrupt is insufficient.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228153114.4948-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 106 ++++++++++++++++++++++--
 1 file changed, 98 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 588294a3bbd2..fc1e29305951 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -217,7 +217,7 @@ gen4_render_ring_flush(struct i915_request *rq, u32 mode)
  * really our business.  That leaves only stall at scoreboard.
  */
 static int
-intel_emit_post_sync_nonzero_flush(struct i915_request *rq)
+gen6_emit_post_sync_nonzero_flush(struct i915_request *rq)
 {
 	u32 scratch_addr = i915_scratch_offset(rq->i915) + 2 * CACHELINE_BYTES;
 	u32 *cs;
@@ -257,7 +257,7 @@ gen6_render_ring_flush(struct i915_request *rq, u32 mode)
 	int ret;
 
 	/* Force SNB workarounds for PIPE_CONTROL flushes */
-	ret = intel_emit_post_sync_nonzero_flush(rq);
+	ret = gen6_emit_post_sync_nonzero_flush(rq);
 	if (ret)
 		return ret;
 
@@ -300,6 +300,37 @@ gen6_render_ring_flush(struct i915_request *rq, u32 mode)
 	return 0;
 }
 
+static void gen6_rcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
+{
+	/* First we do the gen6_emit_post_sync_nonzero_flush w/a */
+	*cs++ = GFX_OP_PIPE_CONTROL(4);
+	*cs++ = PIPE_CONTROL_CS_STALL | PIPE_CONTROL_STALL_AT_SCOREBOARD;
+	*cs++ = 0;
+	*cs++ = 0;
+
+	*cs++ = GFX_OP_PIPE_CONTROL(4);
+	*cs++ = PIPE_CONTROL_QW_WRITE;
+	*cs++ = i915_scratch_offset(rq->i915) | PIPE_CONTROL_GLOBAL_GTT;
+	*cs++ = 0;
+
+	/* Finally we can flush and with it emit the breadcrumb */
+	*cs++ = GFX_OP_PIPE_CONTROL(4);
+	*cs++ = (PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
+		 PIPE_CONTROL_DEPTH_CACHE_FLUSH |
+		 PIPE_CONTROL_DC_FLUSH_ENABLE |
+		 PIPE_CONTROL_QW_WRITE |
+		 PIPE_CONTROL_CS_STALL);
+	*cs++ = intel_hws_seqno_address(rq->engine) | PIPE_CONTROL_GLOBAL_GTT;
+	*cs++ = rq->global_seqno;
+
+	*cs++ = MI_USER_INTERRUPT;
+	*cs++ = MI_NOOP;
+
+	rq->tail = intel_ring_offset(rq, cs);
+	assert_ring_tail_valid(rq->ring, rq->tail);
+}
+static const int gen6_rcs_emit_breadcrumb_sz = 14;
+
 static int
 gen7_render_ring_cs_stall_wa(struct i915_request *rq)
 {
@@ -379,6 +410,39 @@ gen7_render_ring_flush(struct i915_request *rq, u32 mode)
 	return 0;
 }
 
+static void gen7_rcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
+{
+	*cs++ = GFX_OP_PIPE_CONTROL(4);
+	*cs++ = (PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
+		 PIPE_CONTROL_DEPTH_CACHE_FLUSH |
+		 PIPE_CONTROL_DC_FLUSH_ENABLE |
+		 PIPE_CONTROL_FLUSH_ENABLE |
+		 PIPE_CONTROL_QW_WRITE |
+		 PIPE_CONTROL_GLOBAL_GTT_IVB |
+		 PIPE_CONTROL_CS_STALL);
+	*cs++ = intel_hws_seqno_address(rq->engine);
+	*cs++ = rq->global_seqno;
+
+	*cs++ = MI_USER_INTERRUPT;
+	*cs++ = MI_NOOP;
+
+	rq->tail = intel_ring_offset(rq, cs);
+	assert_ring_tail_valid(rq->ring, rq->tail);
+}
+static const int gen7_rcs_emit_breadcrumb_sz = 6;
+
+static void gen6_xcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
+{
+	*cs++ = MI_FLUSH_DW | MI_FLUSH_DW_OP_STOREDW;
+	*cs++ = intel_hws_seqno_address(rq->engine) | MI_FLUSH_DW_USE_GTT;
+	*cs++ = rq->global_seqno;
+	*cs++ = MI_USER_INTERRUPT;
+
+	rq->tail = intel_ring_offset(rq, cs);
+	assert_ring_tail_valid(rq->ring, rq->tail);
+}
+static const int gen6_xcs_emit_breadcrumb_sz = 4;
+
 static void set_hwstam(struct intel_engine_cs *engine, u32 mask)
 {
 	/*
@@ -777,16 +841,20 @@ static void i9xx_submit_request(struct i915_request *request)
 
 static void i9xx_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 {
+	*cs++ = MI_FLUSH;
+
 	*cs++ = MI_STORE_DWORD_INDEX;
-	*cs++ = I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT;
+	*cs++ = I915_GEM_HWS_INDEX_ADDR;
 	*cs++ = rq->global_seqno;
+
 	*cs++ = MI_USER_INTERRUPT;
+	*cs++ = MI_NOOP;
 
 	rq->tail = intel_ring_offset(rq, cs);
 	assert_ring_tail_valid(rq->ring, rq->tail);
 }
 
-static const int i9xx_emit_breadcrumb_sz = 4;
+static const int i9xx_emit_breadcrumb_sz = 6;
 
 static void
 gen5_seqno_barrier(struct intel_engine_cs *engine)
@@ -2090,7 +2158,6 @@ static void intel_ring_init_irq(struct drm_i915_private *dev_priv,
 	if (INTEL_GEN(dev_priv) >= 6) {
 		engine->irq_enable = gen6_irq_enable;
 		engine->irq_disable = gen6_irq_disable;
-		engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else if (INTEL_GEN(dev_priv) >= 5) {
 		engine->irq_enable = gen5_irq_enable;
 		engine->irq_disable = gen5_irq_disable;
@@ -2162,11 +2229,18 @@ int intel_init_render_ring_buffer(struct intel_engine_cs *engine)
 
 	engine->irq_enable_mask = GT_RENDER_USER_INTERRUPT;
 
-	if (INTEL_GEN(dev_priv) >= 6) {
+	if (INTEL_GEN(dev_priv) >= 7) {
 		engine->init_context = intel_rcs_ctx_init;
 		engine->emit_flush = gen7_render_ring_flush;
-		if (IS_GEN(dev_priv, 6))
-			engine->emit_flush = gen6_render_ring_flush;
+		engine->emit_breadcrumb = gen7_rcs_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen7_rcs_emit_breadcrumb_sz;
+		engine->irq_seqno_barrier = gen6_seqno_barrier;
+	} else if (IS_GEN(dev_priv, 6)) {
+		engine->init_context = intel_rcs_ctx_init;
+		engine->emit_flush = gen6_render_ring_flush;
+		engine->emit_breadcrumb = gen6_rcs_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen6_rcs_emit_breadcrumb_sz;
+		engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else if (IS_GEN(dev_priv, 5)) {
 		engine->emit_flush = gen4_render_ring_flush;
 	} else {
@@ -2201,6 +2275,10 @@ int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine)
 			engine->set_default_submission = gen6_bsd_set_default_submission;
 		engine->emit_flush = gen6_bsd_ring_flush;
 		engine->irq_enable_mask = GT_BSD_USER_INTERRUPT;
+
+		engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
+		engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else {
 		engine->emit_flush = bsd_ring_flush;
 		if (IS_GEN(dev_priv, 5))
@@ -2216,11 +2294,17 @@ int intel_init_blt_ring_buffer(struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *dev_priv = engine->i915;
 
+	GEM_BUG_ON(INTEL_GEN(dev_priv) < 6);
+
 	intel_ring_default_vfuncs(dev_priv, engine);
 
 	engine->emit_flush = gen6_ring_flush;
 	engine->irq_enable_mask = GT_BLT_USER_INTERRUPT;
 
+	engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
+	engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
+	engine->irq_seqno_barrier = gen6_seqno_barrier;
+
 	return intel_init_ring_buffer(engine);
 }
 
@@ -2228,6 +2312,8 @@ int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *dev_priv = engine->i915;
 
+	GEM_BUG_ON(INTEL_GEN(dev_priv) < 7);
+
 	intel_ring_default_vfuncs(dev_priv, engine);
 
 	engine->emit_flush = gen6_ring_flush;
@@ -2235,5 +2321,9 @@ int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine)
 	engine->irq_enable = hsw_vebox_irq_enable;
 	engine->irq_disable = hsw_vebox_irq_disable;
 
+	engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
+	engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
+	engine->irq_seqno_barrier = gen6_seqno_barrier;
+
 	return intel_init_ring_buffer(engine);
 }

From 4081cef923e0ac0bb4dbc24da838c91f2ea8d737 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 27 Dec 2018 16:33:37 +0200
Subject: [PATCH 074/118] drm/i915: add a helper to make a copy of i915_params

Abstract the one user in anticipation of more.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c6a94b4da8dc723df025b1f602fe46d76d00d53f.1545920737.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 11 +----------
 drivers/gpu/drm/i915/i915_params.c    | 14 ++++++++++++++
 drivers/gpu/drm/i915/i915_params.h    |  1 +
 3 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 63df41d93379..8c04479c1586 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1834,18 +1834,9 @@ static void capture_gen_state(struct i915_gpu_state *error)
 	error->driver_caps = i915->caps;
 }
 
-static __always_inline void dup_param(const char *type, void *x)
-{
-	if (!__builtin_strcmp(type, "char *"))
-		*(void **)x = kstrdup(*(void **)x, GFP_ATOMIC);
-}
-
 static void capture_params(struct i915_gpu_state *error)
 {
-	error->params = i915_modparams;
-#define DUP(T, x, ...) dup_param(#T, &error->params.x);
-	I915_PARAMS_FOR_EACH(DUP);
-#undef DUP
+	i915_params_copy(&error->params, &i915_modparams);
 }
 
 static unsigned long capture_find_epoch(const struct i915_gpu_state *error)
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 2e0356561839..ae3ece4ec7ab 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -203,3 +203,17 @@ void i915_params_dump(const struct i915_params *params, struct drm_printer *p)
 	I915_PARAMS_FOR_EACH(PRINT);
 #undef PRINT
 }
+
+static __always_inline void dup_param(const char *type, void *x)
+{
+	if (!__builtin_strcmp(type, "char *"))
+		*(void **)x = kstrdup(*(void **)x, GFP_ATOMIC);
+}
+
+void i915_params_copy(struct i915_params *dest, const struct i915_params *src)
+{
+	*dest = *src;
+#define DUP(T, x, ...) dup_param(#T, &dest->x);
+	I915_PARAMS_FOR_EACH(DUP);
+#undef DUP
+}
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 7e56c516c815..fd1cf9415e60 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -78,6 +78,7 @@ struct i915_params {
 extern struct i915_params i915_modparams __read_mostly;
 
 void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
+void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
 
 #endif
 

From 16cabb12f2cc40304dfce8c8eba169f044b64f02 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 27 Dec 2018 16:33:38 +0200
Subject: [PATCH 075/118] drm/i915: add a helper to free the members of
 i915_params

Abstract the one user in anticipation of more. Set the dangling pointers
to NULL while at it.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8637d1e5049dc003718772f19d664aeaf9540856.1545920737.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_gpu_error.c |  9 +--------
 drivers/gpu/drm/i915/i915_params.c    | 16 ++++++++++++++++
 drivers/gpu/drm/i915/i915_params.h    |  1 +
 3 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 8c04479c1586..2bd7991ec9af 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -963,17 +963,10 @@ static void i915_error_object_free(struct drm_i915_error_object *obj)
 	kfree(obj);
 }
 
-static __always_inline void free_param(const char *type, void *x)
-{
-	if (!__builtin_strcmp(type, "char *"))
-		kfree(*(void **)x);
-}
 
 static void cleanup_params(struct i915_gpu_state *error)
 {
-#define FREE(T, x, ...) free_param(#T, &error->params.x);
-	I915_PARAMS_FOR_EACH(FREE);
-#undef FREE
+	i915_params_free(&error->params);
 }
 
 static void cleanup_uc_state(struct i915_gpu_state *error)
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index ae3ece4ec7ab..81c73bfc7991 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -217,3 +217,19 @@ void i915_params_copy(struct i915_params *dest, const struct i915_params *src)
 	I915_PARAMS_FOR_EACH(DUP);
 #undef DUP
 }
+
+static __always_inline void free_param(const char *type, void *x)
+{
+	if (!__builtin_strcmp(type, "char *")) {
+		kfree(*(void **)x);
+		*(void **)x = NULL;
+	}
+}
+
+/* free the allocated members, *not* the passed in params itself */
+void i915_params_free(struct i915_params *params)
+{
+#define FREE(T, x, ...) free_param(#T, &params->x);
+	I915_PARAMS_FOR_EACH(FREE);
+#undef FREE
+}
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index fd1cf9415e60..93f665eced16 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -79,6 +79,7 @@ extern struct i915_params i915_modparams __read_mostly;
 
 void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
 void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
+void i915_params_free(struct i915_params *params);
 
 #endif
 

From fce43315e834c333b4029de9e9e3620c08928166 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 27 Dec 2018 16:33:39 +0200
Subject: [PATCH 076/118] drm/i915/uc: add dev_priv parameter to
 intel_uc_is_using_* functions

Reveals the build fail fixed in the last hunk. Also prep work.

v2: name it i915 instead of dev_priv (Michal)

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8e02dcf1b85462d17e96fb183440dd90261b7411.1545920737.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h    |  6 +++---
 drivers/gpu/drm/i915/intel_uc.c    | 12 ++++++------
 drivers/gpu/drm/i915/intel_uc.h    |  6 +++---
 drivers/gpu/drm/i915/intel_wopcm.c |  2 +-
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 287f06b9e95a..3053b0505dde 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2489,9 +2489,9 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_HUC_UCODE(dev_priv)	(HAS_GUC(dev_priv))
 
 /* Having a GuC is not the same as using a GuC */
-#define USES_GUC(dev_priv)		intel_uc_is_using_guc()
-#define USES_GUC_SUBMISSION(dev_priv)	intel_uc_is_using_guc_submission()
-#define USES_HUC(dev_priv)		intel_uc_is_using_huc()
+#define USES_GUC(dev_priv)		intel_uc_is_using_guc(dev_priv)
+#define USES_GUC_SUBMISSION(dev_priv)	intel_uc_is_using_guc_submission(dev_priv)
+#define USES_HUC(dev_priv)		intel_uc_is_using_huc(dev_priv)
 
 #define HAS_POOLED_EU(dev_priv)	((dev_priv)->info.has_pooled_eu)
 
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 447b1de77cc7..731b82afe636 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -71,7 +71,7 @@ static int __get_default_guc_log_level(struct drm_i915_private *i915)
 {
 	int guc_log_level;
 
-	if (!HAS_GUC(i915) || !intel_uc_is_using_guc())
+	if (!HAS_GUC(i915) || !intel_uc_is_using_guc(i915))
 		guc_log_level = GUC_LOG_LEVEL_DISABLED;
 	else if (IS_ENABLED(CONFIG_DRM_I915_DEBUG) ||
 		 IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM))
@@ -112,11 +112,11 @@ static void sanitize_options_early(struct drm_i915_private *i915)
 
 	DRM_DEBUG_DRIVER("enable_guc=%d (submission:%s huc:%s)\n",
 			 i915_modparams.enable_guc,
-			 yesno(intel_uc_is_using_guc_submission()),
-			 yesno(intel_uc_is_using_huc()));
+			 yesno(intel_uc_is_using_guc_submission(i915)),
+			 yesno(intel_uc_is_using_huc(i915)));
 
 	/* Verify GuC firmware availability */
-	if (intel_uc_is_using_guc() && !intel_uc_fw_is_selected(guc_fw)) {
+	if (intel_uc_is_using_guc(i915) && !intel_uc_fw_is_selected(guc_fw)) {
 		DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
 			 "enable_guc", i915_modparams.enable_guc,
 			 !HAS_GUC(i915) ? "no GuC hardware" :
@@ -124,7 +124,7 @@ static void sanitize_options_early(struct drm_i915_private *i915)
 	}
 
 	/* Verify HuC firmware availability */
-	if (intel_uc_is_using_huc() && !intel_uc_fw_is_selected(huc_fw)) {
+	if (intel_uc_is_using_huc(i915) && !intel_uc_fw_is_selected(huc_fw)) {
 		DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
 			 "enable_guc", i915_modparams.enable_guc,
 			 !HAS_HUC(i915) ? "no HuC hardware" :
@@ -136,7 +136,7 @@ static void sanitize_options_early(struct drm_i915_private *i915)
 		i915_modparams.guc_log_level =
 			__get_default_guc_log_level(i915);
 
-	if (i915_modparams.guc_log_level > 0 && !intel_uc_is_using_guc()) {
+	if (i915_modparams.guc_log_level > 0 && !intel_uc_is_using_guc(i915)) {
 		DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
 			 "guc_log_level", i915_modparams.guc_log_level,
 			 !HAS_GUC(i915) ? "no GuC hardware" :
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 25d73ada74ae..870faf9011b9 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -41,19 +41,19 @@ void intel_uc_fini(struct drm_i915_private *dev_priv);
 int intel_uc_suspend(struct drm_i915_private *dev_priv);
 int intel_uc_resume(struct drm_i915_private *dev_priv);
 
-static inline bool intel_uc_is_using_guc(void)
+static inline bool intel_uc_is_using_guc(struct drm_i915_private *i915)
 {
 	GEM_BUG_ON(i915_modparams.enable_guc < 0);
 	return i915_modparams.enable_guc > 0;
 }
 
-static inline bool intel_uc_is_using_guc_submission(void)
+static inline bool intel_uc_is_using_guc_submission(struct drm_i915_private *i915)
 {
 	GEM_BUG_ON(i915_modparams.enable_guc < 0);
 	return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
 }
 
-static inline bool intel_uc_is_using_huc(void)
+static inline bool intel_uc_is_using_huc(struct drm_i915_private *i915)
 {
 	GEM_BUG_ON(i915_modparams.enable_guc < 0);
 	return i915_modparams.enable_guc & ENABLE_GUC_LOAD_HUC;
diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 630c887682e8..f82a415ea2ba 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.c
+++ b/drivers/gpu/drm/i915/intel_wopcm.c
@@ -163,7 +163,7 @@ int intel_wopcm_init(struct intel_wopcm *wopcm)
 	u32 guc_wopcm_rsvd;
 	int err;
 
-	if (!USES_GUC(dev_priv))
+	if (!USES_GUC(i915))
 		return 0;
 
 	GEM_BUG_ON(!wopcm->size);

From 2ff195cf84a6e2e678c00e79b78869743b7b6e9a Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 27 Dec 2018 16:33:40 +0200
Subject: [PATCH 077/118] drm/i915/params: set i915.enable_hangcheck
 permissions to 0600

i915.enable_hangcheck has been an outlier since its introduction in
commit 3e0dc6b01f53 ("drm/i915: hangcheck disable parameter") with 0644
permissions, while all the rest are either 0400 or 0600. Follow suit
with 0600.

IGT never reads the value, so there should be no impact.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5c8f7d1a1654436d38919b7419a209c129db8ad0.1545920737.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_params.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 81c73bfc7991..9f0539bdaa39 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -77,7 +77,7 @@ i915_param_named(error_capture, bool, 0600,
 	"triaging and debugging hangs.");
 #endif
 
-i915_param_named_unsafe(enable_hangcheck, bool, 0644,
+i915_param_named_unsafe(enable_hangcheck, bool, 0600,
 	"Periodically check GPU activity for detecting hangs. "
 	"WARNING: Disabling this can cause system wide hangs. "
 	"(default: true)");

From d2167a2c29dd3cee2f4c1e862f0f346ced24f8b4 Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Mon, 31 Dec 2018 14:22:12 +0200
Subject: [PATCH 078/118] drm/i915: Remove has_pooled_eu static initializer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

It is only initialized to zero once so does not need an explicit
initializer.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181231122212.1667-1-jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 6350db5503cd..0d342f2b44a5 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -532,7 +532,6 @@ static const struct intel_device_info intel_skylake_gt4_info = {
 	.display.has_fbc = 1, \
 	.display.has_psr = 1, \
 	.has_runtime_pm = 1, \
-	.has_pooled_eu = 0, \
 	.display.has_csr = 1, \
 	.has_rc6 = 1, \
 	.display.has_dp_mst = 1, \

From 7012033033dafc727b52d7da763d4ee9ae71c3bc Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 27 Dec 2018 16:33:42 +0200
Subject: [PATCH 079/118] drm/i915/params: document I915_PARAMS_FOR_EACH()

Macros with this much magic in them deserve some explanatory text.

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6f012851a54433b23cb4752f9d4ef523165b1e58.1545920737.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_params.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 93f665eced16..6efcf330bdab 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -33,6 +33,15 @@ struct drm_printer;
 #define ENABLE_GUC_SUBMISSION		BIT(0)
 #define ENABLE_GUC_LOAD_HUC		BIT(1)
 
+/*
+ * Invoke param, a function-like macro, for each i915 param, with arguments:
+ *
+ * param(type, name, value)
+ *
+ * type: parameter type, one of {bool, int, unsigned int, char *}
+ * name: name of the parameter
+ * value: initial/default value of the parameter
+ */
 #define I915_PARAMS_FOR_EACH(param) \
 	param(char *, vbt_firmware, NULL) \
 	param(int, modeset, -1) \

From 6bf198172beb0b8225fe9cdc0f9c9ac9f4cf5c76 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 31 Dec 2018 14:35:05 +0000
Subject: [PATCH 080/118] drm/i915: Update kerneldoc for intel_wm_need_update()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

drivers/gpu/drm/i915/intel_display.c:10708: warning: Function parameter or member 'cur' not described in 'intel_wm_need_update'
drivers/gpu/drm/i915/intel_display.c:10708: warning: Function parameter or member 'new' not described in 'intel_wm_need_update'
drivers/gpu/drm/i915/intel_display.c:10708: warning: Excess function parameter 'plane' description in 'intel_wm_need_update'
drivers/gpu/drm/i915/intel_display.c:10708: warning: Excess function parameter 'state' description in 'intel_wm_need_update'

References: cd1d3ee90e5e ("drm/i915: Use intel_ types more consistently for watermark code (v2)")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181231143505.2523-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f0b480fba980..ab3b4d02d499 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10673,8 +10673,8 @@ static void intel_crtc_destroy(struct drm_crtc *crtc)
 
 /**
  * intel_wm_need_update - Check whether watermarks need updating
- * @plane: drm plane
- * @state: new plane state
+ * @cur: current plane state
+ * @new: new plane state
  *
  * Check current plane state versus the new one to determine whether
  * watermarks need to be recalculated.

From ed2922c025c3fd208e0fe7589f587ba37e1a4834 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:36 +0000
Subject: [PATCH 081/118] drm/i915: Remove redundant trailing request flush

Now that we perform the request flushing inline with emitting the
breadcrumb, we can remove the now redundant manual flush. And we can
also remove the infrastructure that remained only for its purpose.

v2: emit_breadcrumb_sz is in dwords, but rq->reserved_space is in bytes

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_request.c          | 14 +++++++-------
 drivers/gpu/drm/i915/intel_ringbuffer.c      | 16 ----------------
 drivers/gpu/drm/i915/intel_ringbuffer.h      | 10 ----------
 drivers/gpu/drm/i915/selftests/mock_engine.c |  2 --
 4 files changed, 7 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 2cd1f51963f3..c8603a26606e 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -521,10 +521,6 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 
 	reserve_gt(i915);
 
-	ret = intel_ring_wait_for_space(ce->ring, MIN_SPACE_FOR_ADD_REQUEST);
-	if (ret)
-		goto err_unreserve;
-
 	/* Move our oldest request to the slab-cache (if not in use!) */
 	rq = list_first_entry(&ce->ring->request_list, typeof(*rq), ring_link);
 	if (!list_is_last(&rq->ring_link, &ce->ring->request_list) &&
@@ -616,9 +612,13 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 	 * i915_request_add() call can't fail. Note that the reserve may need
 	 * to be redone if the request is not actually submitted straight
 	 * away, e.g. because a GPU scheduler has deferred it.
+	 *
+	 * Note that due to how we add reserved_space to intel_ring_begin()
+	 * we need to double our request to ensure that if we need to wrap
+	 * around inside i915_request_add() there is sufficient space at
+	 * the beginning of the ring as well.
 	 */
-	rq->reserved_space = MIN_SPACE_FOR_ADD_REQUEST;
-	GEM_BUG_ON(rq->reserved_space < engine->emit_breadcrumb_sz);
+	rq->reserved_space = 2 * engine->emit_breadcrumb_sz * sizeof(u32);
 
 	/*
 	 * Record the position of the start of the request so that
@@ -860,8 +860,8 @@ void i915_request_add(struct i915_request *request)
 	 * should already have been reserved in the ring buffer. Let the ring
 	 * know that it is time to use that space up.
 	 */
+	GEM_BUG_ON(request->reserved_space > request->ring->space);
 	request->reserved_space = 0;
-	engine->emit_flush(request, EMIT_FLUSH);
 
 	/*
 	 * Record the position of the start of the breadcrumb so that
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index fc1e29305951..d773f7dd32a9 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1904,22 +1904,6 @@ static noinline int wait_for_space(struct intel_ring *ring, unsigned int bytes)
 	return 0;
 }
 
-int intel_ring_wait_for_space(struct intel_ring *ring, unsigned int bytes)
-{
-	GEM_BUG_ON(bytes > ring->effective_size);
-	if (unlikely(bytes > ring->effective_size - ring->emit))
-		bytes += ring->size - ring->emit;
-
-	if (unlikely(bytes > ring->space)) {
-		int ret = wait_for_space(ring, bytes);
-		if (unlikely(ret))
-			return ret;
-	}
-
-	GEM_BUG_ON(ring->space < bytes);
-	return 0;
-}
-
 u32 *intel_ring_begin(struct i915_request *rq, unsigned int num_dwords)
 {
 	struct intel_ring *ring = rq->ring;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 32606d795af3..99e2cb75d29a 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -754,7 +754,6 @@ void intel_legacy_submission_resume(struct drm_i915_private *dev_priv);
 
 int __must_check intel_ring_cacheline_align(struct i915_request *rq);
 
-int intel_ring_wait_for_space(struct intel_ring *ring, unsigned int bytes);
 u32 __must_check *intel_ring_begin(struct i915_request *rq, unsigned int n);
 
 static inline void intel_ring_advance(struct i915_request *rq, u32 *cs)
@@ -895,15 +894,6 @@ static inline bool intel_engine_has_started(struct intel_engine_cs *engine,
 void intel_engine_get_instdone(struct intel_engine_cs *engine,
 			       struct intel_instdone *instdone);
 
-/*
- * Arbitrary size for largest possible 'add request' sequence. The code paths
- * are complex and variable. Empirical measurement shows that the worst case
- * is BDW at 192 bytes (6 + 6 + 36 dwords), then ILK at 136 bytes. However,
- * we need to allocate double the largest single packet within that emission
- * to account for tail wraparound (so 6 + 6 + 72 dwords for BDW).
- */
-#define MIN_SPACE_FOR_ADD_REQUEST 336
-
 static inline u32 intel_hws_seqno_address(struct intel_engine_cs *engine)
 {
 	return engine->status_page.ggtt_offset + I915_GEM_HWS_INDEX_ADDR;
diff --git a/drivers/gpu/drm/i915/selftests/mock_engine.c b/drivers/gpu/drm/i915/selftests/mock_engine.c
index d0c44c18db42..50e1a0b1af7e 100644
--- a/drivers/gpu/drm/i915/selftests/mock_engine.c
+++ b/drivers/gpu/drm/i915/selftests/mock_engine.c
@@ -148,8 +148,6 @@ static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
 	const unsigned long sz = PAGE_SIZE / 2;
 	struct mock_ring *ring;
 
-	BUILD_BUG_ON(MIN_SPACE_FOR_ADD_REQUEST > sz);
-
 	ring = kzalloc(sizeof(*ring) + sz, GFP_KERNEL);
 	if (!ring)
 		return NULL;

From 2f0c733b353c2bf6175a4b3cc7d8fb66e86d69f0 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:37 +0000
Subject: [PATCH 082/118] drm/i915/ringbuffer: Remove irq-seqno w/a for gen6/7
 rcs

Having transitioned to using PIPECONTROL to combine the flush with the
breadcrumb write using their post-sync functions, assume that this will
resolve the serialisation with the subsequent MI_USER_INTERRUPT. That is
when inspecting the breadcrumb after an interrupt we can rely on the write
being posted (i.e. the HWSP will be coherent).

Testing using gem_sync shows that the PIPECONTROL + CS stall does
serialise the command streamer sufficient that the breadcrumb lands
before the MI_USER_INTERRUPT. The same is not true for MI_FLUSH_DW.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index d773f7dd32a9..1b9264883a8d 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2218,13 +2218,11 @@ int intel_init_render_ring_buffer(struct intel_engine_cs *engine)
 		engine->emit_flush = gen7_render_ring_flush;
 		engine->emit_breadcrumb = gen7_rcs_emit_breadcrumb;
 		engine->emit_breadcrumb_sz = gen7_rcs_emit_breadcrumb_sz;
-		engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else if (IS_GEN(dev_priv, 6)) {
 		engine->init_context = intel_rcs_ctx_init;
 		engine->emit_flush = gen6_render_ring_flush;
 		engine->emit_breadcrumb = gen6_rcs_emit_breadcrumb;
 		engine->emit_breadcrumb_sz = gen6_rcs_emit_breadcrumb_sz;
-		engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else if (IS_GEN(dev_priv, 5)) {
 		engine->emit_flush = gen4_render_ring_flush;
 	} else {

From d9cad2206abf4f2986c2f74ae5cc4e2415232091 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:38 +0000
Subject: [PATCH 083/118] drm/i915/ringbuffer: Remove irq-seqno w/a for gen6
 xcs

The MI_FLUSH_DW does appear coherent with the following
MI_USER_INTERRUPT, but only on Sandybridge. Ivybridge requires a heavier
hammer, but on Sandybridge we can stop requiring the irq_seqno barrier.

Testcase: igt/gem_sync
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-3-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1b9264883a8d..2fb3a364c390 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2260,7 +2260,8 @@ int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine)
 
 		engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
 		engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
-		engine->irq_seqno_barrier = gen6_seqno_barrier;
+		if (!IS_GEN(dev_priv, 6))
+			engine->irq_seqno_barrier = gen6_seqno_barrier;
 	} else {
 		engine->emit_flush = bsd_ring_flush;
 		if (IS_GEN(dev_priv, 5))
@@ -2285,7 +2286,8 @@ int intel_init_blt_ring_buffer(struct intel_engine_cs *engine)
 
 	engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
 	engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
-	engine->irq_seqno_barrier = gen6_seqno_barrier;
+	if (!IS_GEN(dev_priv, 6))
+		engine->irq_seqno_barrier = gen6_seqno_barrier;
 
 	return intel_init_ring_buffer(engine);
 }

From 1212bd821de8fd7d63003265bb3fe5711ebbc3f7 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:39 +0000
Subject: [PATCH 084/118] drm/i915/ringbuffer: Move irq seqno barrier to the
 GPU for gen7

The irq_seqno_barrier is a tradeoff between doing work on every request
(on the GPU) and doing work after every interrupt (on the CPU). We
presume we have many more requests than interrupts! However, the current
w/a for Ivybridge is an implicit delay that currently fails sporadically
and consistently if we move the w/a into the irq handler itself. This
makes the CPU barrier untenable for upcoming interrupt handler changes
and so we need to replace it with a delay on the GPU before we send the
MI_USER_INTERRUPT. As it turns out that delay is 32x MI_STORE_DWORD_IMM,
or about 0.6us per request! Quite nasty, but the lesser of two evils
looking to the future.

Testcase: igt/gem_sync
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-4-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 80 ++++++++++++++-----------
 1 file changed, 44 insertions(+), 36 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 2fb3a364c390..dd996103d495 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -443,6 +443,34 @@ static void gen6_xcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 }
 static const int gen6_xcs_emit_breadcrumb_sz = 4;
 
+#define GEN7_XCS_WA 32
+static void gen7_xcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
+{
+	int i;
+
+	*cs++ = MI_FLUSH_DW | MI_FLUSH_DW_OP_STOREDW;
+	*cs++ = intel_hws_seqno_address(rq->engine) | MI_FLUSH_DW_USE_GTT;
+	*cs++ = rq->global_seqno;
+
+	for (i = 0; i < GEN7_XCS_WA; i++) {
+		*cs++ = MI_STORE_DWORD_INDEX;
+		*cs++ = I915_GEM_HWS_INDEX_ADDR;
+		*cs++ = rq->global_seqno;
+	}
+
+	*cs++ = MI_FLUSH_DW;
+	*cs++ = 0;
+	*cs++ = 0;
+
+	*cs++ = MI_USER_INTERRUPT;
+	*cs++ = MI_NOOP;
+
+	rq->tail = intel_ring_offset(rq, cs);
+	assert_ring_tail_valid(rq->ring, rq->tail);
+}
+static const int gen7_xcs_emit_breadcrumb_sz = 8 + GEN7_XCS_WA * 3;
+#undef GEN7_XCS_WA
+
 static void set_hwstam(struct intel_engine_cs *engine, u32 mask)
 {
 	/*
@@ -874,31 +902,6 @@ gen5_seqno_barrier(struct intel_engine_cs *engine)
 	usleep_range(125, 250);
 }
 
-static void
-gen6_seqno_barrier(struct intel_engine_cs *engine)
-{
-	struct drm_i915_private *dev_priv = engine->i915;
-
-	/* Workaround to force correct ordering between irq and seqno writes on
-	 * ivb (and maybe also on snb) by reading from a CS register (like
-	 * ACTHD) before reading the status page.
-	 *
-	 * Note that this effectively stalls the read by the time it takes to
-	 * do a memory transaction, which more or less ensures that the write
-	 * from the GPU has sufficient time to invalidate the CPU cacheline.
-	 * Alternatively we could delay the interrupt from the CS ring to give
-	 * the write time to land, but that would incur a delay after every
-	 * batch i.e. much more frequent than a delay when waiting for the
-	 * interrupt (with the same net latency).
-	 *
-	 * Also note that to prevent whole machine hangs on gen7, we have to
-	 * take the spinlock to guard against concurrent cacheline access.
-	 */
-	spin_lock_irq(&dev_priv->uncore.lock);
-	POSTING_READ_FW(RING_ACTHD(engine->mmio_base));
-	spin_unlock_irq(&dev_priv->uncore.lock);
-}
-
 static void
 gen5_irq_enable(struct intel_engine_cs *engine)
 {
@@ -2258,10 +2261,13 @@ int intel_init_bsd_ring_buffer(struct intel_engine_cs *engine)
 		engine->emit_flush = gen6_bsd_ring_flush;
 		engine->irq_enable_mask = GT_BSD_USER_INTERRUPT;
 
-		engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
-		engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
-		if (!IS_GEN(dev_priv, 6))
-			engine->irq_seqno_barrier = gen6_seqno_barrier;
+		if (IS_GEN(dev_priv, 6)) {
+			engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
+			engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
+		} else {
+			engine->emit_breadcrumb = gen7_xcs_emit_breadcrumb;
+			engine->emit_breadcrumb_sz = gen7_xcs_emit_breadcrumb_sz;
+		}
 	} else {
 		engine->emit_flush = bsd_ring_flush;
 		if (IS_GEN(dev_priv, 5))
@@ -2284,10 +2290,13 @@ int intel_init_blt_ring_buffer(struct intel_engine_cs *engine)
 	engine->emit_flush = gen6_ring_flush;
 	engine->irq_enable_mask = GT_BLT_USER_INTERRUPT;
 
-	engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
-	engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
-	if (!IS_GEN(dev_priv, 6))
-		engine->irq_seqno_barrier = gen6_seqno_barrier;
+	if (IS_GEN(dev_priv, 6)) {
+		engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
+	} else {
+		engine->emit_breadcrumb = gen7_xcs_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen7_xcs_emit_breadcrumb_sz;
+	}
 
 	return intel_init_ring_buffer(engine);
 }
@@ -2305,9 +2314,8 @@ int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine)
 	engine->irq_enable = hsw_vebox_irq_enable;
 	engine->irq_disable = hsw_vebox_irq_disable;
 
-	engine->emit_breadcrumb = gen6_xcs_emit_breadcrumb;
-	engine->emit_breadcrumb_sz = gen6_xcs_emit_breadcrumb_sz;
-	engine->irq_seqno_barrier = gen6_seqno_barrier;
+	engine->emit_breadcrumb = gen7_xcs_emit_breadcrumb;
+	engine->emit_breadcrumb_sz = gen7_xcs_emit_breadcrumb_sz;
 
 	return intel_init_ring_buffer(engine);
 }

From 835051d397b81e1534db0a0f378f9035caa0e77b Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:40 +0000
Subject: [PATCH 085/118] drm/i915/ringbuffer: Move irq seqno barrier to the
 GPU for gen5

The irq_seqno_barrier is a tradeoff between doing work on every request
(on the GPU) and doing work after every interrupt (on the CPU). We
presume we have many more requests than interrupts! However, for
Ironlake, the workaround is a pretty hideous usleep() and so even though
it was found we need to repeat the MI_STORE_DWORD_IMM 8 times, or about
1us of GPU time, doing so is preferrable than requiring a sleep of
125-250us on the CPU where we desire to respond immediately (ideally from
within the interrupt handler)!

The additional MI_STORE_DWORD_IMM also have the side-effect of flushing
MI operations from userspace which are not caught by MI_FLUSH!

Testcase: igt/gem_sync
Testcase: igt/gem_exec_whisper
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-5-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 40 ++++++++++++++-----------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index dd996103d495..13ac01b67ead 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -881,26 +881,29 @@ static void i9xx_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 	rq->tail = intel_ring_offset(rq, cs);
 	assert_ring_tail_valid(rq->ring, rq->tail);
 }
-
 static const int i9xx_emit_breadcrumb_sz = 6;
 
-static void
-gen5_seqno_barrier(struct intel_engine_cs *engine)
+#define GEN5_WA_STORES 8 /* must be at least 1! */
+static void gen5_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 {
-	/* MI_STORE are internally buffered by the GPU and not flushed
-	 * either by MI_FLUSH or SyncFlush or any other combination of
-	 * MI commands.
-	 *
-	 * "Only the submission of the store operation is guaranteed.
-	 * The write result will be complete (coherent) some time later
-	 * (this is practically a finite period but there is no guaranteed
-	 * latency)."
-	 *
-	 * Empirically, we observe that we need a delay of at least 75us to
-	 * be sure that the seqno write is visible by the CPU.
-	 */
-	usleep_range(125, 250);
+	int i;
+
+	*cs++ = MI_FLUSH;
+
+	BUILD_BUG_ON(GEN5_WA_STORES < 1);
+	for (i = 0; i < GEN5_WA_STORES; i++) {
+		*cs++ = MI_STORE_DWORD_INDEX;
+		*cs++ = I915_GEM_HWS_INDEX_ADDR;
+		*cs++ = rq->global_seqno;
+	}
+
+	*cs++ = MI_USER_INTERRUPT;
+
+	rq->tail = intel_ring_offset(rq, cs);
+	assert_ring_tail_valid(rq->ring, rq->tail);
 }
+static const int gen5_emit_breadcrumb_sz = GEN5_WA_STORES * 3 + 2;
+#undef GEN5_WA_STORES
 
 static void
 gen5_irq_enable(struct intel_engine_cs *engine)
@@ -2148,7 +2151,6 @@ static void intel_ring_init_irq(struct drm_i915_private *dev_priv,
 	} else if (INTEL_GEN(dev_priv) >= 5) {
 		engine->irq_enable = gen5_irq_enable;
 		engine->irq_disable = gen5_irq_disable;
-		engine->irq_seqno_barrier = gen5_seqno_barrier;
 	} else if (INTEL_GEN(dev_priv) >= 3) {
 		engine->irq_enable = i9xx_irq_enable;
 		engine->irq_disable = i9xx_irq_disable;
@@ -2191,6 +2193,10 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
 
 	engine->emit_breadcrumb = i9xx_emit_breadcrumb;
 	engine->emit_breadcrumb_sz = i9xx_emit_breadcrumb_sz;
+	if (IS_GEN(dev_priv, 5)) {
+		engine->emit_breadcrumb = gen5_emit_breadcrumb;
+		engine->emit_breadcrumb_sz = gen5_emit_breadcrumb_sz;
+	}
 
 	engine->set_default_submission = i9xx_set_default_submission;
 

From 1216e3c3af250ed401577fa6e6561edd7a743fbd Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 28 Dec 2018 17:16:41 +0000
Subject: [PATCH 086/118] drm/i915: Drop unused engine->irq_seqno_barrier w/a

Now that we have eliminated the CPU-side irq_seqno_barrier by moving the
delays on the GPU before emitting the MI_USER_INTERRUPT, we can remove
the engine->irq_seqno_barrier infrastructure. Though intentionally
slowing down the GPU is nasty, so is the code we can now remove!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228171641.16531-6-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_drv.h          | 84 ------------------------
 drivers/gpu/drm/i915/i915_gem.c          |  7 --
 drivers/gpu/drm/i915/i915_irq.c          |  7 --
 drivers/gpu/drm/i915/i915_request.c      |  8 +--
 drivers/gpu/drm/i915/intel_breadcrumbs.c | 26 --------
 drivers/gpu/drm/i915/intel_engine_cs.c   |  6 --
 drivers/gpu/drm/i915/intel_hangcheck.c   | 10 ---
 drivers/gpu/drm/i915/intel_ringbuffer.c  |  4 --
 drivers/gpu/drm/i915/intel_ringbuffer.h  | 10 ---
 9 files changed, 1 insertion(+), 161 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3053b0505dde..13116909fe0d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3586,90 +3586,6 @@ wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
 	}
 }
 
-static inline bool
-__i915_request_irq_complete(const struct i915_request *rq)
-{
-	struct intel_engine_cs *engine = rq->engine;
-	u32 seqno;
-
-	/* Note that the engine may have wrapped around the seqno, and
-	 * so our request->global_seqno will be ahead of the hardware,
-	 * even though it completed the request before wrapping. We catch
-	 * this by kicking all the waiters before resetting the seqno
-	 * in hardware, and also signal the fence.
-	 */
-	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &rq->fence.flags))
-		return true;
-
-	/* The request was dequeued before we were awoken. We check after
-	 * inspecting the hw to confirm that this was the same request
-	 * that generated the HWS update. The memory barriers within
-	 * the request execution are sufficient to ensure that a check
-	 * after reading the value from hw matches this request.
-	 */
-	seqno = i915_request_global_seqno(rq);
-	if (!seqno)
-		return false;
-
-	/* Before we do the heavier coherent read of the seqno,
-	 * check the value (hopefully) in the CPU cacheline.
-	 */
-	if (__i915_request_completed(rq, seqno))
-		return true;
-
-	/* Ensure our read of the seqno is coherent so that we
-	 * do not "miss an interrupt" (i.e. if this is the last
-	 * request and the seqno write from the GPU is not visible
-	 * by the time the interrupt fires, we will see that the
-	 * request is incomplete and go back to sleep awaiting
-	 * another interrupt that will never come.)
-	 *
-	 * Strictly, we only need to do this once after an interrupt,
-	 * but it is easier and safer to do it every time the waiter
-	 * is woken.
-	 */
-	if (engine->irq_seqno_barrier &&
-	    test_and_clear_bit(ENGINE_IRQ_BREADCRUMB, &engine->irq_posted)) {
-		struct intel_breadcrumbs *b = &engine->breadcrumbs;
-
-		/* The ordering of irq_posted versus applying the barrier
-		 * is crucial. The clearing of the current irq_posted must
-		 * be visible before we perform the barrier operation,
-		 * such that if a subsequent interrupt arrives, irq_posted
-		 * is reasserted and our task rewoken (which causes us to
-		 * do another __i915_request_irq_complete() immediately
-		 * and reapply the barrier). Conversely, if the clear
-		 * occurs after the barrier, then an interrupt that arrived
-		 * whilst we waited on the barrier would not trigger a
-		 * barrier on the next pass, and the read may not see the
-		 * seqno update.
-		 */
-		engine->irq_seqno_barrier(engine);
-
-		/* If we consume the irq, but we are no longer the bottom-half,
-		 * the real bottom-half may not have serialised their own
-		 * seqno check with the irq-barrier (i.e. may have inspected
-		 * the seqno before we believe it coherent since they see
-		 * irq_posted == false but we are still running).
-		 */
-		spin_lock_irq(&b->irq_lock);
-		if (b->irq_wait && b->irq_wait->tsk != current)
-			/* Note that if the bottom-half is changed as we
-			 * are sending the wake-up, the new bottom-half will
-			 * be woken by whomever made the change. We only have
-			 * to worry about when we steal the irq-posted for
-			 * ourself.
-			 */
-			wake_up_process(b->irq_wait->tsk);
-		spin_unlock_irq(&b->irq_lock);
-
-		if (__i915_request_completed(rq, seqno))
-			return true;
-	}
-
-	return false;
-}
-
 void i915_memcpy_init_early(struct drm_i915_private *dev_priv);
 bool i915_memcpy_from_wc(void *dst, const void *src, unsigned long len);
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9e65c37daa9c..e872d0a179f0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3230,13 +3230,6 @@ void i915_gem_reset_engine(struct intel_engine_cs *engine,
 			   struct i915_request *request,
 			   bool stalled)
 {
-	/*
-	 * Make sure this write is visible before we re-enable the interrupt
-	 * handlers on another CPU, as tasklet_enable() resolves to just
-	 * a compiler barrier which is insufficient for our purpose here.
-	 */
-	smp_store_mb(engine->irq_posted, 0);
-
 	if (request)
 		request = i915_gem_reset_request(engine, request, stalled);
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0c7fc9890891..fbb094ecf6c9 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1189,13 +1189,6 @@ static void notify_ring(struct intel_engine_cs *engine)
 				rq = i915_request_get(waiter);
 
 			tsk = wait->tsk;
-		} else {
-			if (engine->irq_seqno_barrier &&
-			    i915_seqno_passed(seqno, wait->seqno - 1)) {
-				set_bit(ENGINE_IRQ_BREADCRUMB,
-					&engine->irq_posted);
-				tsk = wait->tsk;
-			}
 		}
 
 		engine->breadcrumbs.irq_count++;
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index c8603a26606e..346418c942a2 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1179,13 +1179,7 @@ long i915_request_wait(struct i915_request *rq,
 		set_current_state(state);
 
 wakeup:
-		/*
-		 * Carefully check if the request is complete, giving time
-		 * for the seqno to be visible following the interrupt.
-		 * We also have to check in case we are kicked by the GPU
-		 * reset in order to drop the struct_mutex.
-		 */
-		if (__i915_request_irq_complete(rq))
+		if (i915_request_completed(rq))
 			break;
 
 		/*
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c
index 447c5256f63a..4ed7105d7ff5 100644
--- a/drivers/gpu/drm/i915/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c
@@ -166,12 +166,6 @@ static void irq_enable(struct intel_engine_cs *engine)
 	 */
 	GEM_BUG_ON(!intel_irqs_enabled(engine->i915));
 
-	/* Enabling the IRQ may miss the generation of the interrupt, but
-	 * we still need to force the barrier before reading the seqno,
-	 * just in case.
-	 */
-	set_bit(ENGINE_IRQ_BREADCRUMB, &engine->irq_posted);
-
 	/* Caller disables interrupts */
 	if (engine->irq_enable) {
 		spin_lock(&engine->i915->irq_lock);
@@ -683,16 +677,6 @@ static int intel_breadcrumbs_signaler(void *arg)
 		}
 
 		if (unlikely(do_schedule)) {
-			/* Before we sleep, check for a missed seqno */
-			if (current->state & TASK_NORMAL &&
-			    !list_empty(&b->signals) &&
-			    engine->irq_seqno_barrier &&
-			    test_and_clear_bit(ENGINE_IRQ_BREADCRUMB,
-					       &engine->irq_posted)) {
-				engine->irq_seqno_barrier(engine);
-				intel_engine_wakeup(engine);
-			}
-
 sleep:
 			if (kthread_should_park())
 				kthread_parkme();
@@ -859,16 +843,6 @@ void intel_engine_reset_breadcrumbs(struct intel_engine_cs *engine)
 	else
 		irq_disable(engine);
 
-	/*
-	 * We set the IRQ_BREADCRUMB bit when we enable the irq presuming the
-	 * GPU is active and may have already executed the MI_USER_INTERRUPT
-	 * before the CPU is ready to receive. However, the engine is currently
-	 * idle (we haven't started it yet), there is no possibility for a
-	 * missed interrupt as we enabled the irq and so we can clear the
-	 * immediate wakeup (until a real interrupt arrives for the waiter).
-	 */
-	clear_bit(ENGINE_IRQ_BREADCRUMB, &engine->irq_posted);
-
 	spin_unlock_irqrestore(&b->irq_lock, flags);
 }
 
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 78fc777c4bf4..92ed729db1f2 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -457,7 +457,6 @@ int intel_engines_init(struct drm_i915_private *dev_priv)
 void intel_engine_write_global_seqno(struct intel_engine_cs *engine, u32 seqno)
 {
 	intel_write_status_page(engine, I915_GEM_HWS_INDEX, seqno);
-	clear_bit(ENGINE_IRQ_BREADCRUMB, &engine->irq_posted);
 
 	/* After manually advancing the seqno, fake the interrupt in case
 	 * there are any waiters for that seqno.
@@ -1536,11 +1535,6 @@ void intel_engine_dump(struct intel_engine_cs *engine,
 	spin_unlock(&b->rb_lock);
 	local_irq_restore(flags);
 
-	drm_printf(m, "IRQ? 0x%lx (breadcrumbs? %s)\n",
-		   engine->irq_posted,
-		   yesno(test_bit(ENGINE_IRQ_BREADCRUMB,
-				  &engine->irq_posted)));
-
 	drm_printf(m, "HWSP:\n");
 	hexdump(m, engine->status_page.page_addr, PAGE_SIZE);
 
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index c3f929f59424..51e9efec5116 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -120,16 +120,6 @@ engine_stuck(struct intel_engine_cs *engine, u64 acthd)
 static void hangcheck_load_sample(struct intel_engine_cs *engine,
 				  struct intel_engine_hangcheck *hc)
 {
-	/* We don't strictly need an irq-barrier here, as we are not
-	 * serving an interrupt request, be paranoid in case the
-	 * barrier has side-effects (such as preventing a broken
-	 * cacheline snoop) and so be sure that we can see the seqno
-	 * advance. If the seqno should stick, due to a stale
-	 * cacheline, we would erroneously declare the GPU hung.
-	 */
-	if (engine->irq_seqno_barrier)
-		engine->irq_seqno_barrier(engine);
-
 	hc->acthd = intel_engine_get_active_head(engine);
 	hc->seqno = intel_engine_get_seqno(engine);
 }
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 13ac01b67ead..f8d3090ed193 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -711,10 +711,6 @@ static int init_ring_common(struct intel_engine_cs *engine)
 static struct i915_request *reset_prepare(struct intel_engine_cs *engine)
 {
 	intel_engine_stop_cs(engine);
-
-	if (engine->irq_seqno_barrier)
-		engine->irq_seqno_barrier(engine);
-
 	return i915_gem_find_active_request(engine);
 }
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 99e2cb75d29a..91ef00d34e91 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -365,9 +365,6 @@ struct intel_engine_cs {
 	struct drm_i915_gem_object *default_state;
 	void *pinned_default_state;
 
-	unsigned long irq_posted;
-#define ENGINE_IRQ_BREADCRUMB 0
-
 	/* Rather than have every client wait upon all user interrupts,
 	 * with the herd waking after every interrupt and each doing the
 	 * heavyweight seqno dance, we delegate the task (of being the
@@ -501,13 +498,6 @@ struct intel_engine_cs {
 	 */
 	void		(*cancel_requests)(struct intel_engine_cs *engine);
 
-	/* Some chipsets are not quite as coherent as advertised and need
-	 * an expensive kick to force a true read of the up-to-date seqno.
-	 * However, the up-to-date seqno is not always required and the last
-	 * seen value is good enough. Note that the seqno will always be
-	 * monotonic, even if not coherent.
-	 */
-	void		(*irq_seqno_barrier)(struct intel_engine_cs *engine);
 	void		(*cleanup)(struct intel_engine_cs *engine);
 
 	struct intel_engine_execlists execlists;

From 0258404f9d3859b89f7b816f0549dd7d4357de01 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:41 +0200
Subject: [PATCH 087/118] drm/i915: start moving runtime device info to a
 separate struct

First move the low hanging fruit, the fields that are only initialized
runtime. Use RUNTIME_INFO() exclusively to access the fields.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c24fe7a4b0492a888690c46814c0ff21ce2f12b1.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c           | 26 ++++----
 drivers/gpu/drm/i915/i915_drv.c               | 16 ++---
 drivers/gpu/drm/i915/i915_drv.h               |  4 +-
 drivers/gpu/drm/i915/i915_gpu_error.c         |  9 ++-
 drivers/gpu/drm/i915/i915_gpu_error.h         |  1 +
 drivers/gpu/drm/i915/i915_perf.c              |  4 +-
 drivers/gpu/drm/i915/i915_query.c             |  2 +-
 drivers/gpu/drm/i915/intel_device_info.c      | 60 +++++++++----------
 drivers/gpu/drm/i915/intel_device_info.h      | 25 ++++----
 drivers/gpu/drm/i915/intel_display.c          |  2 +-
 drivers/gpu/drm/i915/intel_display.h          |  6 +-
 drivers/gpu/drm/i915/intel_engine_cs.c        |  4 +-
 drivers/gpu/drm/i915/intel_lrc.c              | 14 ++---
 drivers/gpu/drm/i915/intel_pm.c               |  2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c       |  2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.h       |  4 +-
 drivers/gpu/drm/i915/intel_uncore.c           |  4 +-
 drivers/gpu/drm/i915/intel_workarounds.c      |  6 +-
 .../gpu/drm/i915/selftests/i915_gem_context.c |  6 +-
 drivers/gpu/drm/i915/selftests/intel_lrc.c    |  4 +-
 20 files changed, 107 insertions(+), 94 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index b89abbba4604..193823048f96 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -48,7 +48,7 @@ static int i915_capabilities(struct seq_file *m, void *data)
 	seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));
 
 	intel_device_info_dump_flags(info, &p);
-	intel_device_info_dump_runtime(info, &p);
+	intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p);
 	intel_driver_caps_print(&dev_priv->caps, &p);
 
 	kernel_param_lock(THIS_MODULE);
@@ -3157,7 +3157,7 @@ static int i915_engine_info(struct seq_file *m, void *unused)
 	seq_printf(m, "Global active requests: %d\n",
 		   dev_priv->gt.active_requests);
 	seq_printf(m, "CS timestamp frequency: %u kHz\n",
-		   dev_priv->info.cs_timestamp_frequency_khz);
+		   RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz);
 
 	p = drm_seq_file_printer(m);
 	for_each_engine(engine, dev_priv, id)
@@ -3173,7 +3173,7 @@ static int i915_rcs_topology(struct seq_file *m, void *unused)
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 	struct drm_printer p = drm_seq_file_printer(m);
 
-	intel_device_info_dump_topology(&INTEL_INFO(dev_priv)->sseu, &p);
+	intel_device_info_dump_topology(&RUNTIME_INFO(dev_priv)->sseu, &p);
 
 	return 0;
 }
@@ -4209,7 +4209,7 @@ static void gen10_sseu_device_status(struct drm_i915_private *dev_priv,
 				     struct sseu_dev_info *sseu)
 {
 #define SS_MAX 6
-	const struct intel_device_info *info = INTEL_INFO(dev_priv);
+	const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
 	u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
 	int s, ss;
 
@@ -4265,7 +4265,7 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
 				    struct sseu_dev_info *sseu)
 {
 #define SS_MAX 3
-	const struct intel_device_info *info = INTEL_INFO(dev_priv);
+	const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
 	u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
 	int s, ss;
 
@@ -4293,7 +4293,7 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
 
 		if (IS_GEN9_BC(dev_priv))
 			sseu->subslice_mask[s] =
-				INTEL_INFO(dev_priv)->sseu.subslice_mask[s];
+				RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
 
 		for (ss = 0; ss < info->sseu.max_subslices; ss++) {
 			unsigned int eu_cnt;
@@ -4327,10 +4327,10 @@ static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
 
 	if (sseu->slice_mask) {
 		sseu->eu_per_subslice =
-				INTEL_INFO(dev_priv)->sseu.eu_per_subslice;
+			RUNTIME_INFO(dev_priv)->sseu.eu_per_subslice;
 		for (s = 0; s < fls(sseu->slice_mask); s++) {
 			sseu->subslice_mask[s] =
-				INTEL_INFO(dev_priv)->sseu.subslice_mask[s];
+				RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
 		}
 		sseu->eu_total = sseu->eu_per_subslice *
 				 sseu_subslice_total(sseu);
@@ -4338,7 +4338,7 @@ static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
 		/* subtract fused off EU(s) from enabled slice(s) */
 		for (s = 0; s < fls(sseu->slice_mask); s++) {
 			u8 subslice_7eu =
-				INTEL_INFO(dev_priv)->sseu.subslice_7eu[s];
+				RUNTIME_INFO(dev_priv)->sseu.subslice_7eu[s];
 
 			sseu->eu_total -= hweight8(subslice_7eu);
 		}
@@ -4391,14 +4391,14 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 		return -ENODEV;
 
 	seq_puts(m, "SSEU Device Info\n");
-	i915_print_sseu_info(m, true, &INTEL_INFO(dev_priv)->sseu);
+	i915_print_sseu_info(m, true, &RUNTIME_INFO(dev_priv)->sseu);
 
 	seq_puts(m, "SSEU Device Status\n");
 	memset(&sseu, 0, sizeof(sseu));
-	sseu.max_slices = INTEL_INFO(dev_priv)->sseu.max_slices;
-	sseu.max_subslices = INTEL_INFO(dev_priv)->sseu.max_subslices;
+	sseu.max_slices = RUNTIME_INFO(dev_priv)->sseu.max_slices;
+	sseu.max_subslices = RUNTIME_INFO(dev_priv)->sseu.max_subslices;
 	sseu.max_eus_per_subslice =
-		INTEL_INFO(dev_priv)->sseu.max_eus_per_subslice;
+		RUNTIME_INFO(dev_priv)->sseu.max_eus_per_subslice;
 
 	intel_runtime_pm_get(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index dcb935338c63..f884b9a138cd 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -358,12 +358,12 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
 		value = i915_cmd_parser_get_version(dev_priv);
 		break;
 	case I915_PARAM_SUBSLICE_TOTAL:
-		value = sseu_subslice_total(&INTEL_INFO(dev_priv)->sseu);
+		value = sseu_subslice_total(&RUNTIME_INFO(dev_priv)->sseu);
 		if (!value)
 			return -ENODEV;
 		break;
 	case I915_PARAM_EU_TOTAL:
-		value = INTEL_INFO(dev_priv)->sseu.eu_total;
+		value = RUNTIME_INFO(dev_priv)->sseu.eu_total;
 		if (!value)
 			return -ENODEV;
 		break;
@@ -380,7 +380,7 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
 		value = HAS_POOLED_EU(dev_priv);
 		break;
 	case I915_PARAM_MIN_EU_IN_POOL:
-		value = INTEL_INFO(dev_priv)->sseu.min_eu_in_pool;
+		value = RUNTIME_INFO(dev_priv)->sseu.min_eu_in_pool;
 		break;
 	case I915_PARAM_HUC_STATUS:
 		value = intel_huc_check_status(&dev_priv->huc);
@@ -430,17 +430,17 @@ static int i915_getparam_ioctl(struct drm_device *dev, void *data,
 		value = intel_engines_has_context_isolation(dev_priv);
 		break;
 	case I915_PARAM_SLICE_MASK:
-		value = INTEL_INFO(dev_priv)->sseu.slice_mask;
+		value = RUNTIME_INFO(dev_priv)->sseu.slice_mask;
 		if (!value)
 			return -ENODEV;
 		break;
 	case I915_PARAM_SUBSLICE_MASK:
-		value = INTEL_INFO(dev_priv)->sseu.subslice_mask[0];
+		value = RUNTIME_INFO(dev_priv)->sseu.subslice_mask[0];
 		if (!value)
 			return -ENODEV;
 		break;
 	case I915_PARAM_CS_TIMESTAMP_FREQUENCY:
-		value = 1000 * INTEL_INFO(dev_priv)->cs_timestamp_frequency_khz;
+		value = 1000 * RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz;
 		break;
 	case I915_PARAM_MMAP_GTT_COHERENT:
 		value = INTEL_INFO(dev_priv)->has_coherent_ggtt;
@@ -1637,7 +1637,7 @@ static void i915_welcome_messages(struct drm_i915_private *dev_priv)
 		struct drm_printer p = drm_debug_printer("i915 device info:");
 
 		intel_device_info_dump(&dev_priv->info, &p);
-		intel_device_info_dump_runtime(&dev_priv->info, &p);
+		intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p);
 	}
 
 	if (IS_ENABLED(CONFIG_DRM_I915_DEBUG))
@@ -1674,7 +1674,7 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Setup the write-once "constant" device info */
 	device_info = mkwrite_device_info(i915);
 	memcpy(device_info, match_info, sizeof(*device_info));
-	device_info->device_id = pdev->device;
+	RUNTIME_INFO(i915)->device_id = pdev->device;
 
 	BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
 		     BITS_PER_TYPE(device_info->platform_mask));
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 13116909fe0d..805571a6a739 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1432,6 +1432,7 @@ struct drm_i915_private {
 	struct kmem_cache *priorities;
 
 	const struct intel_device_info info;
+	struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
 	struct intel_driver_caps caps;
 
 	/**
@@ -2198,10 +2199,11 @@ intel_info(const struct drm_i915_private *dev_priv)
 }
 
 #define INTEL_INFO(dev_priv)	intel_info((dev_priv))
+#define RUNTIME_INFO(dev_priv)	(&(dev_priv)->__runtime)
 #define DRIVER_CAPS(dev_priv)	(&(dev_priv)->caps)
 
 #define INTEL_GEN(dev_priv)	((dev_priv)->info.gen)
-#define INTEL_DEVID(dev_priv)	((dev_priv)->info.device_id)
+#define INTEL_DEVID(dev_priv)	(RUNTIME_INFO(dev_priv)->device_id)
 
 #define REVID_FOREVER		0xff
 #define INTEL_REVID(dev_priv)	((dev_priv)->drm.pdev->revision)
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 2bd7991ec9af..6238a06b6d4e 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -594,13 +594,14 @@ static void print_error_obj(struct drm_i915_error_state_buf *m,
 
 static void err_print_capabilities(struct drm_i915_error_state_buf *m,
 				   const struct intel_device_info *info,
+				   const struct intel_runtime_info *runtime,
 				   const struct intel_driver_caps *caps)
 {
 	struct drm_printer p = i915_error_printer(m);
 
 	intel_device_info_dump_flags(info, &p);
 	intel_driver_caps_print(caps, &p);
-	intel_device_info_dump_topology(&info->sseu, &p);
+	intel_device_info_dump_topology(&runtime->sseu, &p);
 }
 
 static void err_print_params(struct drm_i915_error_state_buf *m,
@@ -844,7 +845,8 @@ static void __err_print_to_sgl(struct drm_i915_error_state_buf *m,
 	if (error->display)
 		intel_display_print_error_state(m, error->display);
 
-	err_print_capabilities(m, &error->device_info, &error->driver_caps);
+	err_print_capabilities(m, &error->device_info, &error->runtime_info,
+			       &error->driver_caps);
 	err_print_params(m, &error->params);
 	err_print_uc(m, &error->uc);
 }
@@ -1824,6 +1826,9 @@ static void capture_gen_state(struct i915_gpu_state *error)
 	memcpy(&error->device_info,
 	       INTEL_INFO(i915),
 	       sizeof(error->device_info));
+	memcpy(&error->runtime_info,
+	       RUNTIME_INFO(i915),
+	       sizeof(error->runtime_info));
 	error->driver_caps = i915->caps;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h
index ff2652bbb0b0..6d9f45468ac1 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.h
+++ b/drivers/gpu/drm/i915/i915_gpu_error.h
@@ -45,6 +45,7 @@ struct i915_gpu_state {
 	u32 reset_count;
 	u32 suspend_count;
 	struct intel_device_info device_info;
+	struct intel_runtime_info runtime_info;
 	struct intel_driver_caps driver_caps;
 	struct i915_params params;
 
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 4288c0e02f0c..289b90065d27 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2646,7 +2646,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
 static u64 oa_exponent_to_ns(struct drm_i915_private *dev_priv, int exponent)
 {
 	return div64_u64(1000000000ULL * (2ULL << exponent),
-			 1000ULL * INTEL_INFO(dev_priv)->cs_timestamp_frequency_khz);
+			 1000ULL * RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz);
 }
 
 /**
@@ -3471,7 +3471,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 		spin_lock_init(&dev_priv->perf.oa.oa_buffer.ptr_lock);
 
 		oa_sample_rate_hard_limit = 1000 *
-			(INTEL_INFO(dev_priv)->cs_timestamp_frequency_khz / 2);
+			(RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz / 2);
 		dev_priv->perf.sysctl_header = register_sysctl_table(dev_root);
 
 		mutex_init(&dev_priv->perf.metrics_lock);
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index 6fc4b8eeab42..95a343934cbd 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -13,7 +13,7 @@
 static int query_topology_info(struct drm_i915_private *dev_priv,
 			       struct drm_i915_query_item *query_item)
 {
-	const struct sseu_dev_info *sseu = &INTEL_INFO(dev_priv)->sseu;
+	const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	struct drm_i915_query_topology_info topo;
 	u32 slice_length, subslice_length, eu_length, total_length;
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index a1dfb00aa16d..ffc5d75aa690 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -104,7 +104,7 @@ static void sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
 	drm_printf(p, "has EU power gating: %s\n", yesno(sseu->has_eu_pg));
 }
 
-void intel_device_info_dump_runtime(const struct intel_device_info *info,
+void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
 				    struct drm_printer *p)
 {
 	sseu_dump(&info->sseu, p);
@@ -164,7 +164,7 @@ static u16 compute_eu_total(const struct sseu_dev_info *sseu)
 
 static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
 {
-	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	u8 s_en;
 	u32 ss_en, ss_en_mask;
 	u8 eu_en;
@@ -203,7 +203,7 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv)
 
 static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
 {
-	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	const u32 fuse2 = I915_READ(GEN8_FUSE2);
 	int s, ss;
 	const int eu_mask = 0xff;
@@ -280,7 +280,7 @@ static void gen10_sseu_info_init(struct drm_i915_private *dev_priv)
 
 static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
 {
-	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	u32 fuse;
 
 	fuse = I915_READ(CHV_FUSE_GT);
@@ -334,7 +334,7 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv)
 static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
 {
 	struct intel_device_info *info = mkwrite_device_info(dev_priv);
-	struct sseu_dev_info *sseu = &info->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	int s, ss;
 	u32 fuse2, eu_disable, subslice_mask;
 	const u8 eu_mask = 0xff;
@@ -437,7 +437,7 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv)
 
 static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
 {
-	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	int s, ss;
 	u32 fuse2, subslice_mask, eu_disable[3]; /* s_max */
 
@@ -519,8 +519,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
 
 static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
 {
-	struct intel_device_info *info = mkwrite_device_info(dev_priv);
-	struct sseu_dev_info *sseu = &info->sseu;
+	struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	u32 fuse1;
 	int s, ss;
 
@@ -528,9 +527,9 @@ static void haswell_sseu_info_init(struct drm_i915_private *dev_priv)
 	 * There isn't a register to tell us how many slices/subslices. We
 	 * work off the PCI-ids here.
 	 */
-	switch (info->gt) {
+	switch (INTEL_INFO(dev_priv)->gt) {
 	default:
-		MISSING_CASE(info->gt);
+		MISSING_CASE(INTEL_INFO(dev_priv)->gt);
 		/* fall through */
 	case 1:
 		sseu->slice_mask = BIT(0);
@@ -743,25 +742,26 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 {
 	struct drm_i915_private *dev_priv =
 		container_of(info, struct drm_i915_private, info);
+	struct intel_runtime_info *runtime = RUNTIME_INFO(dev_priv);
 	enum pipe pipe;
 
 	if (INTEL_GEN(dev_priv) >= 10) {
 		for_each_pipe(dev_priv, pipe)
-			info->num_scalers[pipe] = 2;
+			runtime->num_scalers[pipe] = 2;
 	} else if (IS_GEN(dev_priv, 9)) {
-		info->num_scalers[PIPE_A] = 2;
-		info->num_scalers[PIPE_B] = 2;
-		info->num_scalers[PIPE_C] = 1;
+		runtime->num_scalers[PIPE_A] = 2;
+		runtime->num_scalers[PIPE_B] = 2;
+		runtime->num_scalers[PIPE_C] = 1;
 	}
 
 	BUILD_BUG_ON(I915_NUM_ENGINES > BITS_PER_TYPE(intel_ring_mask_t));
 
 	if (IS_GEN(dev_priv, 11))
 		for_each_pipe(dev_priv, pipe)
-			info->num_sprites[pipe] = 6;
+			runtime->num_sprites[pipe] = 6;
 	else if (IS_GEN(dev_priv, 10) || IS_GEMINILAKE(dev_priv))
 		for_each_pipe(dev_priv, pipe)
-			info->num_sprites[pipe] = 3;
+			runtime->num_sprites[pipe] = 3;
 	else if (IS_BROXTON(dev_priv)) {
 		/*
 		 * Skylake and Broxton currently don't expose the topmost plane as its
@@ -772,15 +772,15 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 		 * down the line.
 		 */
 
-		info->num_sprites[PIPE_A] = 2;
-		info->num_sprites[PIPE_B] = 2;
-		info->num_sprites[PIPE_C] = 1;
+		runtime->num_sprites[PIPE_A] = 2;
+		runtime->num_sprites[PIPE_B] = 2;
+		runtime->num_sprites[PIPE_C] = 1;
 	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		for_each_pipe(dev_priv, pipe)
-			info->num_sprites[pipe] = 2;
+			runtime->num_sprites[pipe] = 2;
 	} else if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv)) {
 		for_each_pipe(dev_priv, pipe)
-			info->num_sprites[pipe] = 1;
+			runtime->num_sprites[pipe] = 1;
 	}
 
 	if (i915_modparams.disable_display) {
@@ -864,7 +864,7 @@ void intel_device_info_runtime_init(struct intel_device_info *info)
 	}
 
 	/* Initialize command stream timestamp frequency */
-	info->cs_timestamp_frequency_khz = read_timestamp_frequency(dev_priv);
+	runtime->cs_timestamp_frequency_khz = read_timestamp_frequency(dev_priv);
 }
 
 void intel_driver_caps_print(const struct intel_driver_caps *caps,
@@ -893,16 +893,16 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
 
 	media_fuse = ~I915_READ(GEN11_GT_VEBOX_VDBOX_DISABLE);
 
-	info->vdbox_enable = media_fuse & GEN11_GT_VDBOX_DISABLE_MASK;
-	info->vebox_enable = (media_fuse & GEN11_GT_VEBOX_DISABLE_MASK) >>
-			     GEN11_GT_VEBOX_DISABLE_SHIFT;
+	RUNTIME_INFO(dev_priv)->vdbox_enable = media_fuse & GEN11_GT_VDBOX_DISABLE_MASK;
+	RUNTIME_INFO(dev_priv)->vebox_enable = (media_fuse & GEN11_GT_VEBOX_DISABLE_MASK) >>
+		GEN11_GT_VEBOX_DISABLE_SHIFT;
 
-	DRM_DEBUG_DRIVER("vdbox enable: %04x\n", info->vdbox_enable);
+	DRM_DEBUG_DRIVER("vdbox enable: %04x\n", RUNTIME_INFO(dev_priv)->vdbox_enable);
 	for (i = 0; i < I915_MAX_VCS; i++) {
 		if (!HAS_ENGINE(dev_priv, _VCS(i)))
 			continue;
 
-		if (!(BIT(i) & info->vdbox_enable)) {
+		if (!(BIT(i) & RUNTIME_INFO(dev_priv)->vdbox_enable)) {
 			info->ring_mask &= ~ENGINE_MASK(_VCS(i));
 			DRM_DEBUG_DRIVER("vcs%u fused off\n", i);
 			continue;
@@ -913,15 +913,15 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
 		 * hooked up to an SFC (Scaler & Format Converter) unit.
 		 */
 		if (logical_vdbox++ % 2 == 0)
-			info->vdbox_sfc_access |= BIT(i);
+			RUNTIME_INFO(dev_priv)->vdbox_sfc_access |= BIT(i);
 	}
 
-	DRM_DEBUG_DRIVER("vebox enable: %04x\n", info->vebox_enable);
+	DRM_DEBUG_DRIVER("vebox enable: %04x\n", RUNTIME_INFO(dev_priv)->vebox_enable);
 	for (i = 0; i < I915_MAX_VECS; i++) {
 		if (!HAS_ENGINE(dev_priv, _VECS(i)))
 			continue;
 
-		if (!(BIT(i) & info->vebox_enable)) {
+		if (!(BIT(i) & RUNTIME_INFO(dev_priv)->vebox_enable)) {
 			info->ring_mask &= ~ENGINE_MASK(_VECS(i));
 			DRM_DEBUG_DRIVER("vecs%u fused off\n", i);
 		}
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index dd34f974a857..fa81ee15dfa1 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -152,12 +152,10 @@ struct sseu_dev_info {
 typedef u8 intel_ring_mask_t;
 
 struct intel_device_info {
-	u16 device_id;
 	u16 gen_mask;
 
 	u8 gen;
 	u8 gt; /* GT number, 0 if undefined */
-	u8 num_rings;
 	intel_ring_mask_t ring_mask; /* Rings supported by the HW */
 
 	enum intel_platform platform;
@@ -169,8 +167,6 @@ struct intel_device_info {
 	u32 display_mmio_offset;
 
 	u8 num_pipes;
-	u8 num_sprites[I915_MAX_PIPES];
-	u8 num_scalers[I915_MAX_PIPES];
 
 #define DEFINE_FLAG(name) u8 name:1
 	DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
@@ -189,6 +185,20 @@ struct intel_device_info {
 	int trans_offsets[I915_MAX_TRANSCODERS];
 	int cursor_offsets[I915_MAX_PIPES];
 
+	struct color_luts {
+		u16 degamma_lut_size;
+		u16 gamma_lut_size;
+	} color;
+};
+
+struct intel_runtime_info {
+	u16 device_id;
+
+	u8 num_sprites[I915_MAX_PIPES];
+	u8 num_scalers[I915_MAX_PIPES];
+
+	u8 num_rings;
+
 	/* Slice/subslice/EU info */
 	struct sseu_dev_info sseu;
 
@@ -200,11 +210,6 @@ struct intel_device_info {
 
 	/* Media engine access to SFC per instance */
 	u8 vdbox_sfc_access;
-
-	struct color_luts {
-		u16 degamma_lut_size;
-		u16 gamma_lut_size;
-	} color;
 };
 
 struct intel_driver_caps {
@@ -266,7 +271,7 @@ void intel_device_info_dump(const struct intel_device_info *info,
 			    struct drm_printer *p);
 void intel_device_info_dump_flags(const struct intel_device_info *info,
 				  struct drm_printer *p);
-void intel_device_info_dump_runtime(const struct intel_device_info *info,
+void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
 				    struct drm_printer *p);
 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
 				     struct drm_printer *p);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ab3b4d02d499..665b483bbbcc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14060,7 +14060,7 @@ static void intel_crtc_init_scalers(struct intel_crtc *crtc,
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	int i;
 
-	crtc->num_scalers = dev_priv->info.num_scalers[crtc->pipe];
+	crtc->num_scalers = RUNTIME_INFO(dev_priv)->num_scalers[crtc->pipe];
 	if (!crtc->num_scalers)
 		return;
 
diff --git a/drivers/gpu/drm/i915/intel_display.h b/drivers/gpu/drm/i915/intel_display.h
index 4262452963b3..c7c068662288 100644
--- a/drivers/gpu/drm/i915/intel_display.h
+++ b/drivers/gpu/drm/i915/intel_display.h
@@ -121,7 +121,7 @@ enum i9xx_plane_id {
 };
 
 #define plane_name(p) ((p) + 'A')
-#define sprite_name(p, s) ((p) * INTEL_INFO(dev_priv)->num_sprites[(p)] + (s) + 'A')
+#define sprite_name(p, s) ((p) * RUNTIME_INFO(dev_priv)->num_sprites[(p)] + (s) + 'A')
 
 /*
  * Per-pipe plane identifier.
@@ -311,12 +311,12 @@ struct intel_link_m_n {
 
 #define for_each_universal_plane(__dev_priv, __pipe, __p)		\
 	for ((__p) = 0;							\
-	     (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1;	\
+	     (__p) < RUNTIME_INFO(__dev_priv)->num_sprites[(__pipe)] + 1;	\
 	     (__p)++)
 
 #define for_each_sprite(__dev_priv, __p, __s)				\
 	for ((__s) = 0;							\
-	     (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)];	\
+	     (__s) < RUNTIME_INFO(__dev_priv)->num_sprites[(__p)];	\
 	     (__s)++)
 
 #define for_each_port_masked(__port, __ports_mask) \
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 92ed729db1f2..2aa3e0d7e6a3 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -393,7 +393,7 @@ int intel_engines_init_mmio(struct drm_i915_private *dev_priv)
 		goto cleanup;
 	}
 
-	device_info->num_rings = hweight32(mask);
+	RUNTIME_INFO(dev_priv)->num_rings = hweight32(mask);
 
 	i915_check_and_clear_faults(dev_priv);
 
@@ -782,7 +782,7 @@ const char *i915_cache_level_str(struct drm_i915_private *i915, int type)
 
 u32 intel_calculate_mcr_s_ss_select(struct drm_i915_private *dev_priv)
 {
-	const struct sseu_dev_info *sseu = &(INTEL_INFO(dev_priv)->sseu);
+	const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	u32 mcr_s_ss_select;
 	u32 slice = fls(sseu->slice_mask);
 	u32 subslice = fls(sseu->subslice_mask[slice]);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 2482dde6e56b..d81ae121c45e 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2312,9 +2312,9 @@ int logical_xcs_ring_init(struct intel_engine_cs *engine)
 static u32
 make_rpcs(struct drm_i915_private *dev_priv)
 {
-	bool subslice_pg = INTEL_INFO(dev_priv)->sseu.has_subslice_pg;
-	u8 slices = hweight8(INTEL_INFO(dev_priv)->sseu.slice_mask);
-	u8 subslices = hweight8(INTEL_INFO(dev_priv)->sseu.subslice_mask[0]);
+	bool subslice_pg = RUNTIME_INFO(dev_priv)->sseu.has_subslice_pg;
+	u8 slices = hweight8(RUNTIME_INFO(dev_priv)->sseu.slice_mask);
+	u8 subslices = hweight8(RUNTIME_INFO(dev_priv)->sseu.subslice_mask[0]);
 	u32 rpcs = 0;
 
 	/*
@@ -2362,7 +2362,7 @@ make_rpcs(struct drm_i915_private *dev_priv)
 	 * must make an explicit request through RPCS for full
 	 * enablement.
 	*/
-	if (INTEL_INFO(dev_priv)->sseu.has_slice_pg) {
+	if (RUNTIME_INFO(dev_priv)->sseu.has_slice_pg) {
 		u32 mask, val = slices;
 
 		if (INTEL_GEN(dev_priv) >= 11) {
@@ -2390,17 +2390,17 @@ make_rpcs(struct drm_i915_private *dev_priv)
 		rpcs |= GEN8_RPCS_ENABLE | GEN8_RPCS_SS_CNT_ENABLE | val;
 	}
 
-	if (INTEL_INFO(dev_priv)->sseu.has_eu_pg) {
+	if (RUNTIME_INFO(dev_priv)->sseu.has_eu_pg) {
 		u32 val;
 
-		val = INTEL_INFO(dev_priv)->sseu.eu_per_subslice <<
+		val = RUNTIME_INFO(dev_priv)->sseu.eu_per_subslice <<
 		      GEN8_RPCS_EU_MIN_SHIFT;
 		GEM_BUG_ON(val & ~GEN8_RPCS_EU_MIN_MASK);
 		val &= GEN8_RPCS_EU_MIN_MASK;
 
 		rpcs |= val;
 
-		val = INTEL_INFO(dev_priv)->sseu.eu_per_subslice <<
+		val = RUNTIME_INFO(dev_priv)->sseu.eu_per_subslice <<
 		      GEN8_RPCS_EU_MAX_SHIFT;
 		GEM_BUG_ON(val & ~GEN8_RPCS_EU_MAX_MASK);
 		val &= GEN8_RPCS_EU_MAX_MASK;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2a6ffb8b975a..83b01cde8113 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7274,7 +7274,7 @@ static int cherryview_rps_max_freq(struct drm_i915_private *dev_priv)
 
 	val = vlv_punit_read(dev_priv, FB_GFX_FMAX_AT_VMAX_FUSE);
 
-	switch (INTEL_INFO(dev_priv)->sseu.eu_total) {
+	switch (RUNTIME_INFO(dev_priv)->sseu.eu_total) {
 	case 8:
 		/* (2 * 4) config */
 		rp0 = (val >> FB_GFX_FMAX_AT_VMAX_2SS4EU_FUSE_SHIFT);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index f8d3090ed193..8967dcb5f58f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1607,7 +1607,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 	struct intel_engine_cs *engine = rq->engine;
 	enum intel_engine_id id;
 	const int num_rings =
-		IS_HSW_GT1(i915) ? INTEL_INFO(i915)->num_rings - 1 : 0;
+		IS_HSW_GT1(i915) ? RUNTIME_INFO(i915)->num_rings - 1 : 0;
 	bool force_restore = false;
 	int len;
 	u32 *cs;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 91ef00d34e91..69287e77b929 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -95,11 +95,11 @@ hangcheck_action_to_str(const enum intel_engine_hangcheck_action a)
 
 #define instdone_slice_mask(dev_priv__) \
 	(IS_GEN(dev_priv__, 7) ? \
-	 1 : INTEL_INFO(dev_priv__)->sseu.slice_mask)
+	 1 : RUNTIME_INFO(dev_priv__)->sseu.slice_mask)
 
 #define instdone_subslice_mask(dev_priv__) \
 	(IS_GEN(dev_priv__, 7) ? \
-	 1 : INTEL_INFO(dev_priv__)->sseu.subslice_mask[0])
+	 1 : RUNTIME_INFO(dev_priv__)->sseu.subslice_mask[0])
 
 #define for_each_instdone_slice_subslice(dev_priv__, slice__, subslice__) \
 	for ((slice__) = 0, (subslice__) = 0; \
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 5800f0ce2c57..e5e5c6e9ed28 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1934,7 +1934,7 @@ static int gen6_reset_engines(struct drm_i915_private *dev_priv,
 static u32 gen11_lock_sfc(struct drm_i915_private *dev_priv,
 			  struct intel_engine_cs *engine)
 {
-	u8 vdbox_sfc_access = INTEL_INFO(dev_priv)->vdbox_sfc_access;
+	u8 vdbox_sfc_access = RUNTIME_INFO(dev_priv)->vdbox_sfc_access;
 	i915_reg_t sfc_forced_lock, sfc_forced_lock_ack;
 	u32 sfc_forced_lock_bit, sfc_forced_lock_ack_bit;
 	i915_reg_t sfc_usage;
@@ -2002,7 +2002,7 @@ static u32 gen11_lock_sfc(struct drm_i915_private *dev_priv,
 static void gen11_unlock_sfc(struct drm_i915_private *dev_priv,
 			     struct intel_engine_cs *engine)
 {
-	u8 vdbox_sfc_access = INTEL_INFO(dev_priv)->vdbox_sfc_access;
+	u8 vdbox_sfc_access = RUNTIME_INFO(dev_priv)->vdbox_sfc_access;
 	i915_reg_t sfc_forced_lock;
 	u32 sfc_forced_lock_bit;
 
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 7a8618065491..480c53a2ecb5 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -366,7 +366,7 @@ static void skl_tune_iz_hashing(struct intel_engine_cs *engine)
 		 * Only consider slices where one, and only one, subslice has 7
 		 * EUs
 		 */
-		if (!is_power_of_2(INTEL_INFO(i915)->sseu.subslice_7eu[i]))
+		if (!is_power_of_2(RUNTIME_INFO(i915)->sseu.subslice_7eu[i]))
 			continue;
 
 		/*
@@ -375,7 +375,7 @@ static void skl_tune_iz_hashing(struct intel_engine_cs *engine)
 		 *
 		 * ->    0 <= ss <= 3;
 		 */
-		ss = ffs(INTEL_INFO(i915)->sseu.subslice_7eu[i]) - 1;
+		ss = ffs(RUNTIME_INFO(i915)->sseu.subslice_7eu[i]) - 1;
 		vals[i] = 3 - ss;
 	}
 
@@ -743,7 +743,7 @@ static void cfl_gt_workarounds_init(struct drm_i915_private *i915)
 
 static void wa_init_mcr(struct drm_i915_private *dev_priv)
 {
-	const struct sseu_dev_info *sseu = &(INTEL_INFO(dev_priv)->sseu);
+	const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
 	struct i915_wa_list *wal = &dev_priv->gt_wa_list;
 	u32 mcr_slice_subslice_mask;
 
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
index 7d82043aff10..d00cdf3c2939 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
@@ -627,7 +627,7 @@ static int igt_ctx_exec(void *arg)
 		ncontexts++;
 	}
 	pr_info("Submitted %lu contexts (across %u engines), filling %lu dwords\n",
-		ncontexts, INTEL_INFO(i915)->num_rings, ndwords);
+		ncontexts, RUNTIME_INFO(i915)->num_rings, ndwords);
 
 	dw = 0;
 	list_for_each_entry(obj, &objects, st_link) {
@@ -732,7 +732,7 @@ static int igt_ctx_readonly(void *arg)
 		}
 	}
 	pr_info("Submitted %lu dwords (across %u engines)\n",
-		ndwords, INTEL_INFO(i915)->num_rings);
+		ndwords, RUNTIME_INFO(i915)->num_rings);
 
 	dw = 0;
 	list_for_each_entry(obj, &objects, st_link) {
@@ -1064,7 +1064,7 @@ static int igt_vm_isolation(void *arg)
 		count += this;
 	}
 	pr_info("Checked %lu scratch offsets across %d engines\n",
-		count, INTEL_INFO(i915)->num_rings);
+		count, RUNTIME_INFO(i915)->num_rings);
 
 out_rpm:
 	intel_runtime_pm_put(i915);
diff --git a/drivers/gpu/drm/i915/selftests/intel_lrc.c b/drivers/gpu/drm/i915/selftests/intel_lrc.c
index ca461e3a5f27..00caaa00f02f 100644
--- a/drivers/gpu/drm/i915/selftests/intel_lrc.c
+++ b/drivers/gpu/drm/i915/selftests/intel_lrc.c
@@ -522,7 +522,7 @@ static int smoke_crescendo(struct preempt_smoke *smoke, unsigned int flags)
 
 	pr_info("Submitted %lu crescendo:%x requests across %d engines and %d contexts\n",
 		count, flags,
-		INTEL_INFO(smoke->i915)->num_rings, smoke->ncontext);
+		RUNTIME_INFO(smoke->i915)->num_rings, smoke->ncontext);
 	return 0;
 }
 
@@ -550,7 +550,7 @@ static int smoke_random(struct preempt_smoke *smoke, unsigned int flags)
 
 	pr_info("Submitted %lu random:%x requests across %d engines and %d contexts\n",
 		count, flags,
-		INTEL_INFO(smoke->i915)->num_rings, smoke->ncontext);
+		RUNTIME_INFO(smoke->i915)->num_rings, smoke->ncontext);
 	return 0;
 }
 

From ed5eb1b78a883029d7c7c6a8b602088225b743a6 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:42 +0200
Subject: [PATCH 088/118] drm/i915/reg: abstract display_mmio_offset access

Add a macro wrapper for display_mmio_offset access in register
definitions. Prep work for reducing direct dev_priv->info usage. No
functional changes.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/aa4e8fd85e0445ec5be6c55151239072b4315fda.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_reg.h | 178 ++++++++++++++++----------------
 1 file changed, 90 insertions(+), 88 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 02af9b5add34..de1c9d495808 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -139,6 +139,12 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 	return !i915_mmio_reg_equal(reg, INVALID_MMIO_REG);
 }
 
+#define VLV_DISPLAY_BASE		0x180000
+#define VLV_MIPI_BASE			VLV_DISPLAY_BASE
+#define BXT_MIPI_BASE			0x60000
+
+#define DISPLAY_MMIO_BASE(dev_priv)	(INTEL_INFO(dev_priv)->display_mmio_offset)
+
 /*
  * Given the first two numbers __a and __b of arbitrarily many evenly spaced
  * numbers, pick the 0-based __index'th value.
@@ -181,13 +187,13 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
  */
 #define _MMIO_PIPE2(pipe, reg)		_MMIO(dev_priv->info.pipe_offsets[pipe] - \
 					      dev_priv->info.pipe_offsets[PIPE_A] + (reg) + \
-					      dev_priv->info.display_mmio_offset)
+					      DISPLAY_MMIO_BASE(dev_priv))
 #define _MMIO_TRANS2(pipe, reg)		_MMIO(dev_priv->info.trans_offsets[(pipe)] - \
 					      dev_priv->info.trans_offsets[TRANSCODER_A] + (reg) + \
-					      dev_priv->info.display_mmio_offset)
+					      DISPLAY_MMIO_BASE(dev_priv))
 #define _CURSOR2(pipe, reg)		_MMIO(dev_priv->info.cursor_offsets[(pipe)] - \
 					      dev_priv->info.cursor_offsets[PIPE_A] + (reg) + \
-					      dev_priv->info.display_mmio_offset)
+					      DISPLAY_MMIO_BASE(dev_priv))
 
 #define __MASKED_FIELD(mask, value) ((mask) << 16 | (value))
 #define _MASKED_FIELD(mask, value) ({					   \
@@ -2614,10 +2620,6 @@ enum i915_power_well_id {
 
 #define   GEN11_GFX_DISABLE_LEGACY_MODE	(1 << 3)
 
-#define VLV_DISPLAY_BASE 0x180000
-#define VLV_MIPI_BASE VLV_DISPLAY_BASE
-#define BXT_MIPI_BASE 0x60000
-
 #define VLV_GU_CTL0	_MMIO(VLV_DISPLAY_BASE + 0x2030)
 #define VLV_GU_CTL1	_MMIO(VLV_DISPLAY_BASE + 0x2034)
 #define SCPD0		_MMIO(0x209c) /* 915+ only */
@@ -3174,9 +3176,9 @@ enum i915_power_well_id {
 /*
  * Clock control & power management
  */
-#define _DPLL_A (dev_priv->info.display_mmio_offset + 0x6014)
-#define _DPLL_B (dev_priv->info.display_mmio_offset + 0x6018)
-#define _CHV_DPLL_C (dev_priv->info.display_mmio_offset + 0x6030)
+#define _DPLL_A (DISPLAY_MMIO_BASE(dev_priv) + 0x6014)
+#define _DPLL_B (DISPLAY_MMIO_BASE(dev_priv) + 0x6018)
+#define _CHV_DPLL_C (DISPLAY_MMIO_BASE(dev_priv) + 0x6030)
 #define DPLL(pipe) _MMIO_PIPE3((pipe), _DPLL_A, _DPLL_B, _CHV_DPLL_C)
 
 #define VGA0	_MMIO(0x6000)
@@ -3273,9 +3275,9 @@ enum i915_power_well_id {
 #define   SDVO_MULTIPLIER_SHIFT_HIRES		4
 #define   SDVO_MULTIPLIER_SHIFT_VGA		0
 
-#define _DPLL_A_MD (dev_priv->info.display_mmio_offset + 0x601c)
-#define _DPLL_B_MD (dev_priv->info.display_mmio_offset + 0x6020)
-#define _CHV_DPLL_C_MD (dev_priv->info.display_mmio_offset + 0x603c)
+#define _DPLL_A_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x601c)
+#define _DPLL_B_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x6020)
+#define _CHV_DPLL_C_MD (DISPLAY_MMIO_BASE(dev_priv) + 0x603c)
 #define DPLL_MD(pipe) _MMIO_PIPE3((pipe), _DPLL_A_MD, _DPLL_B_MD, _CHV_DPLL_C_MD)
 
 /*
@@ -3347,7 +3349,7 @@ enum i915_power_well_id {
 #define  DSTATE_PLL_D3_OFF			(1 << 3)
 #define  DSTATE_GFX_CLOCK_GATING		(1 << 1)
 #define  DSTATE_DOT_CLOCK_GATING		(1 << 0)
-#define DSPCLK_GATE_D	_MMIO(dev_priv->info.display_mmio_offset + 0x6200)
+#define DSPCLK_GATE_D	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x6200)
 # define DPUNIT_B_CLOCK_GATE_DISABLE		(1 << 30) /* 965 */
 # define VSUNIT_CLOCK_GATE_DISABLE		(1 << 29) /* 965 */
 # define VRHUNIT_CLOCK_GATE_DISABLE		(1 << 28) /* 965 */
@@ -3487,7 +3489,7 @@ enum i915_power_well_id {
 #define _PALETTE_A		0xa000
 #define _PALETTE_B		0xa800
 #define _CHV_PALETTE_C		0xc000
-#define PALETTE(pipe, i)	_MMIO(dev_priv->info.display_mmio_offset + \
+#define PALETTE(pipe, i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + \
 				      _PICK((pipe), _PALETTE_A,		\
 					    _PALETTE_B, _CHV_PALETTE_C) + \
 				      (i) * 4)
@@ -4320,7 +4322,7 @@ enum {
 
 
 /* Hotplug control (945+ only) */
-#define PORT_HOTPLUG_EN		_MMIO(dev_priv->info.display_mmio_offset + 0x61110)
+#define PORT_HOTPLUG_EN		_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61110)
 #define   PORTB_HOTPLUG_INT_EN			(1 << 29)
 #define   PORTC_HOTPLUG_INT_EN			(1 << 28)
 #define   PORTD_HOTPLUG_INT_EN			(1 << 27)
@@ -4350,7 +4352,7 @@ enum {
 #define CRT_HOTPLUG_DETECT_VOLTAGE_325MV	(0 << 2)
 #define CRT_HOTPLUG_DETECT_VOLTAGE_475MV	(1 << 2)
 
-#define PORT_HOTPLUG_STAT	_MMIO(dev_priv->info.display_mmio_offset + 0x61114)
+#define PORT_HOTPLUG_STAT	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61114)
 /*
  * HDMI/DP bits are g4x+
  *
@@ -4432,7 +4434,7 @@ enum {
 
 #define PORT_DFT_I9XX				_MMIO(0x61150)
 #define   DC_BALANCE_RESET			(1 << 25)
-#define PORT_DFT2_G4X		_MMIO(dev_priv->info.display_mmio_offset + 0x61154)
+#define PORT_DFT2_G4X		_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61154)
 #define   DC_BALANCE_RESET_VLV			(1 << 31)
 #define   PIPE_SCRAMBLE_RESET_MASK		((1 << 14) | (0x3 << 0))
 #define   PIPE_C_SCRAMBLE_RESET			(1 << 14) /* chv */
@@ -4717,7 +4719,7 @@ enum {
 #define  PANEL_POWER_CYCLE_DELAY_SHIFT	0
 
 /* Panel fitting */
-#define PFIT_CONTROL	_MMIO(dev_priv->info.display_mmio_offset + 0x61230)
+#define PFIT_CONTROL	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61230)
 #define   PFIT_ENABLE		(1 << 31)
 #define   PFIT_PIPE_MASK	(3 << 29)
 #define   PFIT_PIPE_SHIFT	29
@@ -4735,7 +4737,7 @@ enum {
 #define   PFIT_SCALING_PROGRAMMED (1 << 26)
 #define   PFIT_SCALING_PILLAR	(2 << 26)
 #define   PFIT_SCALING_LETTER	(3 << 26)
-#define PFIT_PGM_RATIOS _MMIO(dev_priv->info.display_mmio_offset + 0x61234)
+#define PFIT_PGM_RATIOS _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61234)
 /* Pre-965 */
 #define		PFIT_VERT_SCALE_SHIFT		20
 #define		PFIT_VERT_SCALE_MASK		0xfff00000
@@ -4747,25 +4749,25 @@ enum {
 #define		PFIT_HORIZ_SCALE_SHIFT_965	0
 #define		PFIT_HORIZ_SCALE_MASK_965	0x00001fff
 
-#define PFIT_AUTO_RATIOS _MMIO(dev_priv->info.display_mmio_offset + 0x61238)
+#define PFIT_AUTO_RATIOS _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61238)
 
-#define _VLV_BLC_PWM_CTL2_A (dev_priv->info.display_mmio_offset + 0x61250)
-#define _VLV_BLC_PWM_CTL2_B (dev_priv->info.display_mmio_offset + 0x61350)
+#define _VLV_BLC_PWM_CTL2_A (DISPLAY_MMIO_BASE(dev_priv) + 0x61250)
+#define _VLV_BLC_PWM_CTL2_B (DISPLAY_MMIO_BASE(dev_priv) + 0x61350)
 #define VLV_BLC_PWM_CTL2(pipe) _MMIO_PIPE(pipe, _VLV_BLC_PWM_CTL2_A, \
 					 _VLV_BLC_PWM_CTL2_B)
 
-#define _VLV_BLC_PWM_CTL_A (dev_priv->info.display_mmio_offset + 0x61254)
-#define _VLV_BLC_PWM_CTL_B (dev_priv->info.display_mmio_offset + 0x61354)
+#define _VLV_BLC_PWM_CTL_A (DISPLAY_MMIO_BASE(dev_priv) + 0x61254)
+#define _VLV_BLC_PWM_CTL_B (DISPLAY_MMIO_BASE(dev_priv) + 0x61354)
 #define VLV_BLC_PWM_CTL(pipe) _MMIO_PIPE(pipe, _VLV_BLC_PWM_CTL_A, \
 					_VLV_BLC_PWM_CTL_B)
 
-#define _VLV_BLC_HIST_CTL_A (dev_priv->info.display_mmio_offset + 0x61260)
-#define _VLV_BLC_HIST_CTL_B (dev_priv->info.display_mmio_offset + 0x61360)
+#define _VLV_BLC_HIST_CTL_A (DISPLAY_MMIO_BASE(dev_priv) + 0x61260)
+#define _VLV_BLC_HIST_CTL_B (DISPLAY_MMIO_BASE(dev_priv) + 0x61360)
 #define VLV_BLC_HIST_CTL(pipe) _MMIO_PIPE(pipe, _VLV_BLC_HIST_CTL_A, \
 					 _VLV_BLC_HIST_CTL_B)
 
 /* Backlight control */
-#define BLC_PWM_CTL2	_MMIO(dev_priv->info.display_mmio_offset + 0x61250) /* 965+ only */
+#define BLC_PWM_CTL2	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61250) /* 965+ only */
 #define   BLM_PWM_ENABLE		(1 << 31)
 #define   BLM_COMBINATION_MODE		(1 << 30) /* gen4 only */
 #define   BLM_PIPE_SELECT		(1 << 29)
@@ -4788,7 +4790,7 @@ enum {
 #define   BLM_PHASE_IN_COUNT_MASK	(0xff << 8)
 #define   BLM_PHASE_IN_INCR_SHIFT	(0)
 #define   BLM_PHASE_IN_INCR_MASK	(0xff << 0)
-#define BLC_PWM_CTL	_MMIO(dev_priv->info.display_mmio_offset + 0x61254)
+#define BLC_PWM_CTL	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61254)
 /*
  * This is the most significant 15 bits of the number of backlight cycles in a
  * complete cycle of the modulated backlight control.
@@ -4810,7 +4812,7 @@ enum {
 #define   BACKLIGHT_DUTY_CYCLE_MASK_PNV		(0xfffe)
 #define   BLM_POLARITY_PNV			(1 << 0) /* pnv only */
 
-#define BLC_HIST_CTL	_MMIO(dev_priv->info.display_mmio_offset + 0x61260)
+#define BLC_HIST_CTL	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61260)
 #define  BLM_HISTOGRAM_ENABLE			(1 << 31)
 
 /* New registers for PCH-split platforms. Safe where new bits show up, the
@@ -5434,47 +5436,47 @@ enum {
  * is 20 bytes in each direction, hence the 5 fixed
  * data registers
  */
-#define _DPA_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64010)
-#define _DPA_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64014)
-#define _DPA_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64018)
-#define _DPA_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6401c)
-#define _DPA_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64020)
-#define _DPA_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64024)
+#define _DPA_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64010)
+#define _DPA_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64014)
+#define _DPA_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64018)
+#define _DPA_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6401c)
+#define _DPA_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64020)
+#define _DPA_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64024)
 
-#define _DPB_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64110)
-#define _DPB_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64114)
-#define _DPB_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64118)
-#define _DPB_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6411c)
-#define _DPB_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64120)
-#define _DPB_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64124)
+#define _DPB_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64110)
+#define _DPB_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64114)
+#define _DPB_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64118)
+#define _DPB_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6411c)
+#define _DPB_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64120)
+#define _DPB_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64124)
 
-#define _DPC_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64210)
-#define _DPC_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64214)
-#define _DPC_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64218)
-#define _DPC_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6421c)
-#define _DPC_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64220)
-#define _DPC_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64224)
+#define _DPC_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64210)
+#define _DPC_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64214)
+#define _DPC_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64218)
+#define _DPC_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6421c)
+#define _DPC_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64220)
+#define _DPC_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64224)
 
-#define _DPD_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64310)
-#define _DPD_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64314)
-#define _DPD_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64318)
-#define _DPD_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6431c)
-#define _DPD_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64320)
-#define _DPD_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64324)
+#define _DPD_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64310)
+#define _DPD_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64314)
+#define _DPD_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64318)
+#define _DPD_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6431c)
+#define _DPD_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64320)
+#define _DPD_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64324)
 
-#define _DPE_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64410)
-#define _DPE_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64414)
-#define _DPE_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64418)
-#define _DPE_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6441c)
-#define _DPE_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64420)
-#define _DPE_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64424)
+#define _DPE_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64410)
+#define _DPE_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64414)
+#define _DPE_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64418)
+#define _DPE_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6441c)
+#define _DPE_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64420)
+#define _DPE_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64424)
 
-#define _DPF_AUX_CH_CTL		(dev_priv->info.display_mmio_offset + 0x64510)
-#define _DPF_AUX_CH_DATA1	(dev_priv->info.display_mmio_offset + 0x64514)
-#define _DPF_AUX_CH_DATA2	(dev_priv->info.display_mmio_offset + 0x64518)
-#define _DPF_AUX_CH_DATA3	(dev_priv->info.display_mmio_offset + 0x6451c)
-#define _DPF_AUX_CH_DATA4	(dev_priv->info.display_mmio_offset + 0x64520)
-#define _DPF_AUX_CH_DATA5	(dev_priv->info.display_mmio_offset + 0x64524)
+#define _DPF_AUX_CH_CTL		(DISPLAY_MMIO_BASE(dev_priv) + 0x64510)
+#define _DPF_AUX_CH_DATA1	(DISPLAY_MMIO_BASE(dev_priv) + 0x64514)
+#define _DPF_AUX_CH_DATA2	(DISPLAY_MMIO_BASE(dev_priv) + 0x64518)
+#define _DPF_AUX_CH_DATA3	(DISPLAY_MMIO_BASE(dev_priv) + 0x6451c)
+#define _DPF_AUX_CH_DATA4	(DISPLAY_MMIO_BASE(dev_priv) + 0x64520)
+#define _DPF_AUX_CH_DATA5	(DISPLAY_MMIO_BASE(dev_priv) + 0x64524)
 
 #define DP_AUX_CH_CTL(aux_ch)	_MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL)
 #define DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
@@ -5750,7 +5752,7 @@ enum {
 #define   DPINVGTT_STATUS_MASK			0xff
 #define   DPINVGTT_STATUS_MASK_CHV		0xfff
 
-#define DSPARB			_MMIO(dev_priv->info.display_mmio_offset + 0x70030)
+#define DSPARB			_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x70030)
 #define   DSPARB_CSTART_MASK	(0x7f << 7)
 #define   DSPARB_CSTART_SHIFT	7
 #define   DSPARB_BSTART_MASK	(0x7f)
@@ -5785,7 +5787,7 @@ enum {
 #define   DSPARB_SPRITEF_MASK_VLV	(0xff << 8)
 
 /* pnv/gen4/g4x/vlv/chv */
-#define DSPFW1		_MMIO(dev_priv->info.display_mmio_offset + 0x70034)
+#define DSPFW1		_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x70034)
 #define   DSPFW_SR_SHIFT		23
 #define   DSPFW_SR_MASK			(0x1ff << 23)
 #define   DSPFW_CURSORB_SHIFT		16
@@ -5796,7 +5798,7 @@ enum {
 #define   DSPFW_PLANEA_SHIFT		0
 #define   DSPFW_PLANEA_MASK		(0x7f << 0)
 #define   DSPFW_PLANEA_MASK_VLV		(0xff << 0) /* vlv/chv */
-#define DSPFW2		_MMIO(dev_priv->info.display_mmio_offset + 0x70038)
+#define DSPFW2		_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x70038)
 #define   DSPFW_FBC_SR_EN		(1 << 31)	  /* g4x */
 #define   DSPFW_FBC_SR_SHIFT		28
 #define   DSPFW_FBC_SR_MASK		(0x7 << 28) /* g4x */
@@ -5812,7 +5814,7 @@ enum {
 #define   DSPFW_SPRITEA_SHIFT		0
 #define   DSPFW_SPRITEA_MASK		(0x7f << 0) /* g4x */
 #define   DSPFW_SPRITEA_MASK_VLV	(0xff << 0) /* vlv/chv */
-#define DSPFW3		_MMIO(dev_priv->info.display_mmio_offset + 0x7003c)
+#define DSPFW3		_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x7003c)
 #define   DSPFW_HPLL_SR_EN		(1 << 31)
 #define   PINEVIEW_SELF_REFRESH_EN	(1 << 30)
 #define   DSPFW_CURSOR_SR_SHIFT		24
@@ -6228,35 +6230,35 @@ enum {
  * [10:1f] all
  * [30:32] all
  */
-#define SWF0(i)	_MMIO(dev_priv->info.display_mmio_offset + 0x70410 + (i) * 4)
-#define SWF1(i)	_MMIO(dev_priv->info.display_mmio_offset + 0x71410 + (i) * 4)
-#define SWF3(i)	_MMIO(dev_priv->info.display_mmio_offset + 0x72414 + (i) * 4)
+#define SWF0(i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x70410 + (i) * 4)
+#define SWF1(i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x71410 + (i) * 4)
+#define SWF3(i)	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x72414 + (i) * 4)
 #define SWF_ILK(i)	_MMIO(0x4F000 + (i) * 4)
 
 /* Pipe B */
-#define _PIPEBDSL		(dev_priv->info.display_mmio_offset + 0x71000)
-#define _PIPEBCONF		(dev_priv->info.display_mmio_offset + 0x71008)
-#define _PIPEBSTAT		(dev_priv->info.display_mmio_offset + 0x71024)
+#define _PIPEBDSL		(DISPLAY_MMIO_BASE(dev_priv) + 0x71000)
+#define _PIPEBCONF		(DISPLAY_MMIO_BASE(dev_priv) + 0x71008)
+#define _PIPEBSTAT		(DISPLAY_MMIO_BASE(dev_priv) + 0x71024)
 #define _PIPEBFRAMEHIGH		0x71040
 #define _PIPEBFRAMEPIXEL	0x71044
-#define _PIPEB_FRMCOUNT_G4X	(dev_priv->info.display_mmio_offset + 0x71040)
-#define _PIPEB_FLIPCOUNT_G4X	(dev_priv->info.display_mmio_offset + 0x71044)
+#define _PIPEB_FRMCOUNT_G4X	(DISPLAY_MMIO_BASE(dev_priv) + 0x71040)
+#define _PIPEB_FLIPCOUNT_G4X	(DISPLAY_MMIO_BASE(dev_priv) + 0x71044)
 
 
 /* Display B control */
-#define _DSPBCNTR		(dev_priv->info.display_mmio_offset + 0x71180)
+#define _DSPBCNTR		(DISPLAY_MMIO_BASE(dev_priv) + 0x71180)
 #define   DISPPLANE_ALPHA_TRANS_ENABLE		(1 << 15)
 #define   DISPPLANE_ALPHA_TRANS_DISABLE		0
 #define   DISPPLANE_SPRITE_ABOVE_DISPLAY	0
 #define   DISPPLANE_SPRITE_ABOVE_OVERLAY	(1)
-#define _DSPBADDR		(dev_priv->info.display_mmio_offset + 0x71184)
-#define _DSPBSTRIDE		(dev_priv->info.display_mmio_offset + 0x71188)
-#define _DSPBPOS		(dev_priv->info.display_mmio_offset + 0x7118C)
-#define _DSPBSIZE		(dev_priv->info.display_mmio_offset + 0x71190)
-#define _DSPBSURF		(dev_priv->info.display_mmio_offset + 0x7119C)
-#define _DSPBTILEOFF		(dev_priv->info.display_mmio_offset + 0x711A4)
-#define _DSPBOFFSET		(dev_priv->info.display_mmio_offset + 0x711A4)
-#define _DSPBSURFLIVE		(dev_priv->info.display_mmio_offset + 0x711AC)
+#define _DSPBADDR		(DISPLAY_MMIO_BASE(dev_priv) + 0x71184)
+#define _DSPBSTRIDE		(DISPLAY_MMIO_BASE(dev_priv) + 0x71188)
+#define _DSPBPOS		(DISPLAY_MMIO_BASE(dev_priv) + 0x7118C)
+#define _DSPBSIZE		(DISPLAY_MMIO_BASE(dev_priv) + 0x71190)
+#define _DSPBSURF		(DISPLAY_MMIO_BASE(dev_priv) + 0x7119C)
+#define _DSPBTILEOFF		(DISPLAY_MMIO_BASE(dev_priv) + 0x711A4)
+#define _DSPBOFFSET		(DISPLAY_MMIO_BASE(dev_priv) + 0x711A4)
+#define _DSPBSURFLIVE		(DISPLAY_MMIO_BASE(dev_priv) + 0x711AC)
 
 /* ICL DSI 0 and 1 */
 #define _PIPEDSI0CONF		0x7b008
@@ -8808,7 +8810,7 @@ enum {
 #define   GEN9_ENABLE_GPGPU_PREEMPTION	(1 << 2)
 
 /* Audio */
-#define G4X_AUD_VID_DID			_MMIO(dev_priv->info.display_mmio_offset + 0x62020)
+#define G4X_AUD_VID_DID			_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x62020)
 #define   INTEL_AUDIO_DEVCL		0x808629FB
 #define   INTEL_AUDIO_DEVBLC		0x80862801
 #define   INTEL_AUDIO_DEVCTG		0x80862802

From 1400cc7e0dcdf13454e64a402c097e3c8f5d5d29 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:43 +0200
Subject: [PATCH 089/118] drm/i915: pass dev_priv to
 intel_device_info_runtime_init()

With the static/runtime device info split, this makes more sense.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ad5b448e4e318df0d292d73e6c3378f3e6b9bae5.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_drv.c          | 2 +-
 drivers/gpu/drm/i915/intel_device_info.c | 5 ++---
 drivers/gpu/drm/i915/intel_device_info.h | 2 +-
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f884b9a138cd..261932ee6837 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1374,7 +1374,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 	if (i915_inject_load_failure())
 		return -ENODEV;
 
-	intel_device_info_runtime_init(mkwrite_device_info(dev_priv));
+	intel_device_info_runtime_init(dev_priv);
 
 	if (HAS_PPGTT(dev_priv)) {
 		if (intel_vgpu_active(dev_priv) &&
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index ffc5d75aa690..f35e8cff4b99 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -738,10 +738,9 @@ static u32 read_timestamp_frequency(struct drm_i915_private *dev_priv)
  *   - after the PCH has been detected,
  *   - before the first usage of the fields it can tweak.
  */
-void intel_device_info_runtime_init(struct intel_device_info *info)
+void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv =
-		container_of(info, struct drm_i915_private, info);
+	struct intel_device_info *info = mkwrite_device_info(dev_priv);
 	struct intel_runtime_info *runtime = RUNTIME_INFO(dev_priv);
 	enum pipe pipe;
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index fa81ee15dfa1..f0e6d374d4ec 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -266,7 +266,7 @@ static inline void sseu_set_eus(struct sseu_dev_info *sseu,
 
 const char *intel_platform_name(enum intel_platform platform);
 
-void intel_device_info_runtime_init(struct intel_device_info *info);
+void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
 void intel_device_info_dump(const struct intel_device_info *info,
 			    struct drm_printer *p);
 void intel_device_info_dump_flags(const struct intel_device_info *info,

From a0f04cc27c50a896a1369e809306be33fe0a3abf Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:44 +0200
Subject: [PATCH 090/118] drm/i915: always use INTEL_INFO() to access device
 info

Hide the way device info is stored, in preparation of making device info
a pointer to the const rodata in i915_pci.c. No functional changes.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3cd626f248c0d6638f1288938bbb577a12286050.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_drv.c     |  2 +-
 drivers/gpu/drm/i915/i915_drv.h     | 90 ++++++++++++++---------------
 drivers/gpu/drm/i915/i915_reg.h     | 12 ++--
 drivers/gpu/drm/i915/intel_uncore.c |  2 +-
 4 files changed, 53 insertions(+), 53 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 261932ee6837..8d7a3a852c10 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1636,7 +1636,7 @@ static void i915_welcome_messages(struct drm_i915_private *dev_priv)
 	if (drm_debug & DRM_UT_DRIVER) {
 		struct drm_printer p = drm_debug_printer("i915 device info:");
 
-		intel_device_info_dump(&dev_priv->info, &p);
+		intel_device_info_dump(INTEL_INFO(dev_priv), &p);
 		intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p);
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 805571a6a739..c05d5bb37ffd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2202,7 +2202,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define RUNTIME_INFO(dev_priv)	(&(dev_priv)->__runtime)
 #define DRIVER_CAPS(dev_priv)	(&(dev_priv)->caps)
 
-#define INTEL_GEN(dev_priv)	((dev_priv)->info.gen)
+#define INTEL_GEN(dev_priv)	(INTEL_INFO(dev_priv)->gen)
 #define INTEL_DEVID(dev_priv)	(RUNTIME_INFO(dev_priv)->device_id)
 
 #define REVID_FOREVER		0xff
@@ -2215,11 +2215,11 @@ intel_info(const struct drm_i915_private *dev_priv)
 
 /* Returns true if Gen is in inclusive range [Start, End] */
 #define IS_GEN_RANGE(dev_priv, s, e) \
-	(!!((dev_priv)->info.gen_mask & INTEL_GEN_MASK((s), (e))))
+	(!!(INTEL_INFO(dev_priv)->gen_mask & INTEL_GEN_MASK((s), (e))))
 
 #define IS_GEN(dev_priv, n) \
 	(BUILD_BUG_ON_ZERO(!__builtin_constant_p(n)) + \
-	 (dev_priv)->info.gen == (n))
+	 INTEL_INFO(dev_priv)->gen == (n))
 
 /*
  * Return true if revision is in range [since,until] inclusive.
@@ -2229,7 +2229,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_REVID(p, since, until) \
 	(INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
 
-#define IS_PLATFORM(dev_priv, p) ((dev_priv)->info.platform_mask & BIT(p))
+#define IS_PLATFORM(dev_priv, p) (INTEL_INFO(dev_priv)->platform_mask & BIT(p))
 
 #define IS_I830(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I830)
 #define IS_I845G(dev_priv)	IS_PLATFORM(dev_priv, INTEL_I845G)
@@ -2251,7 +2251,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_IRONLAKE_M(dev_priv)	(INTEL_DEVID(dev_priv) == 0x0046)
 #define IS_IVYBRIDGE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_IVYBRIDGE)
 #define IS_IVB_GT1(dev_priv)	(IS_IVYBRIDGE(dev_priv) && \
-				 (dev_priv)->info.gt == 1)
+				 INTEL_INFO(dev_priv)->gt == 1)
 #define IS_VALLEYVIEW(dev_priv)	IS_PLATFORM(dev_priv, INTEL_VALLEYVIEW)
 #define IS_CHERRYVIEW(dev_priv)	IS_PLATFORM(dev_priv, INTEL_CHERRYVIEW)
 #define IS_HASWELL(dev_priv)	IS_PLATFORM(dev_priv, INTEL_HASWELL)
@@ -2263,7 +2263,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_COFFEELAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_COFFEELAKE)
 #define IS_CANNONLAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_CANNONLAKE)
 #define IS_ICELAKE(dev_priv)	IS_PLATFORM(dev_priv, INTEL_ICELAKE)
-#define IS_MOBILE(dev_priv)	((dev_priv)->info.is_mobile)
+#define IS_MOBILE(dev_priv)	(INTEL_INFO(dev_priv)->is_mobile)
 #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
 				    (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
 #define IS_BDW_ULT(dev_priv)	(IS_BROADWELL(dev_priv) && \
@@ -2274,13 +2274,13 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_BDW_ULX(dev_priv)	(IS_BROADWELL(dev_priv) && \
 				 (INTEL_DEVID(dev_priv) & 0xf) == 0xe)
 #define IS_BDW_GT3(dev_priv)	(IS_BROADWELL(dev_priv) && \
-				 (dev_priv)->info.gt == 3)
+				 INTEL_INFO(dev_priv)->gt == 3)
 #define IS_HSW_ULT(dev_priv)	(IS_HASWELL(dev_priv) && \
 				 (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0A00)
 #define IS_HSW_GT3(dev_priv)	(IS_HASWELL(dev_priv) && \
-				 (dev_priv)->info.gt == 3)
+				 INTEL_INFO(dev_priv)->gt == 3)
 #define IS_HSW_GT1(dev_priv)	(IS_HASWELL(dev_priv) && \
-				 (dev_priv)->info.gt == 1)
+				 INTEL_INFO(dev_priv)->gt == 1)
 /* ULX machines are also considered ULT. */
 #define IS_HSW_ULX(dev_priv)	(INTEL_DEVID(dev_priv) == 0x0A0E || \
 				 INTEL_DEVID(dev_priv) == 0x0A1E)
@@ -2303,21 +2303,21 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_AML_ULX(dev_priv)	(INTEL_DEVID(dev_priv) == 0x591C || \
 				 INTEL_DEVID(dev_priv) == 0x87C0)
 #define IS_SKL_GT2(dev_priv)	(IS_SKYLAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 2)
+				 INTEL_INFO(dev_priv)->gt == 2)
 #define IS_SKL_GT3(dev_priv)	(IS_SKYLAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 3)
+				 INTEL_INFO(dev_priv)->gt == 3)
 #define IS_SKL_GT4(dev_priv)	(IS_SKYLAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 4)
+				 INTEL_INFO(dev_priv)->gt == 4)
 #define IS_KBL_GT2(dev_priv)	(IS_KABYLAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 2)
+				 INTEL_INFO(dev_priv)->gt == 2)
 #define IS_KBL_GT3(dev_priv)	(IS_KABYLAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 3)
+				 INTEL_INFO(dev_priv)->gt == 3)
 #define IS_CFL_ULT(dev_priv)	(IS_COFFEELAKE(dev_priv) && \
 				 (INTEL_DEVID(dev_priv) & 0x00F0) == 0x00A0)
 #define IS_CFL_GT2(dev_priv)	(IS_COFFEELAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 2)
+				 INTEL_INFO(dev_priv)->gt == 2)
 #define IS_CFL_GT3(dev_priv)	(IS_COFFEELAKE(dev_priv) && \
-				 (dev_priv)->info.gt == 3)
+				 INTEL_INFO(dev_priv)->gt == 3)
 #define IS_CNL_WITH_PORT_F(dev_priv)   (IS_CANNONLAKE(dev_priv) && \
 					(INTEL_DEVID(dev_priv) & 0x0004) == 0x0004)
 
@@ -2390,27 +2390,27 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define ALL_ENGINES	(~0)
 
 #define HAS_ENGINE(dev_priv, id) \
-	(!!((dev_priv)->info.ring_mask & ENGINE_MASK(id)))
+	(!!(INTEL_INFO(dev_priv)->ring_mask & ENGINE_MASK(id)))
 
 #define HAS_BSD(dev_priv)	HAS_ENGINE(dev_priv, VCS)
 #define HAS_BSD2(dev_priv)	HAS_ENGINE(dev_priv, VCS2)
 #define HAS_BLT(dev_priv)	HAS_ENGINE(dev_priv, BCS)
 #define HAS_VEBOX(dev_priv)	HAS_ENGINE(dev_priv, VECS)
 
-#define HAS_LLC(dev_priv)	((dev_priv)->info.has_llc)
-#define HAS_SNOOP(dev_priv)	((dev_priv)->info.has_snoop)
+#define HAS_LLC(dev_priv)	(INTEL_INFO(dev_priv)->has_llc)
+#define HAS_SNOOP(dev_priv)	(INTEL_INFO(dev_priv)->has_snoop)
 #define HAS_EDRAM(dev_priv)	(!!((dev_priv)->edram_cap & EDRAM_ENABLED))
 #define HAS_WT(dev_priv)	((IS_HASWELL(dev_priv) || \
 				 IS_BROADWELL(dev_priv)) && HAS_EDRAM(dev_priv))
 
-#define HWS_NEEDS_PHYSICAL(dev_priv)	((dev_priv)->info.hws_needs_physical)
+#define HWS_NEEDS_PHYSICAL(dev_priv)	(INTEL_INFO(dev_priv)->hws_needs_physical)
 
 #define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
-		((dev_priv)->info.has_logical_ring_contexts)
+		(INTEL_INFO(dev_priv)->has_logical_ring_contexts)
 #define HAS_LOGICAL_RING_ELSQ(dev_priv) \
-		((dev_priv)->info.has_logical_ring_elsq)
+		(INTEL_INFO(dev_priv)->has_logical_ring_elsq)
 #define HAS_LOGICAL_RING_PREEMPTION(dev_priv) \
-		((dev_priv)->info.has_logical_ring_preemption)
+		(INTEL_INFO(dev_priv)->has_logical_ring_preemption)
 
 #define HAS_EXECLISTS(dev_priv) HAS_LOGICAL_RING_CONTEXTS(dev_priv)
 
@@ -2424,12 +2424,12 @@ intel_info(const struct drm_i915_private *dev_priv)
 
 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
 	GEM_BUG_ON((sizes) == 0); \
-	((sizes) & ~(dev_priv)->info.page_sizes) == 0; \
+	((sizes) & ~INTEL_INFO(dev_priv)->page_sizes) == 0; \
 })
 
-#define HAS_OVERLAY(dev_priv)		 ((dev_priv)->info.display.has_overlay)
+#define HAS_OVERLAY(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_overlay)
 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
-		((dev_priv)->info.display.overlay_needs_physical)
+		(INTEL_INFO(dev_priv)->display.overlay_needs_physical)
 
 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
 #define HAS_BROKEN_CS_TLB(dev_priv)	(IS_I830(dev_priv) || IS_I845G(dev_priv))
@@ -2450,39 +2450,39 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_128_BYTE_Y_TILING(dev_priv) (!IS_GEN(dev_priv, 2) && \
 					 !(IS_I915G(dev_priv) || \
 					 IS_I915GM(dev_priv)))
-#define SUPPORTS_TV(dev_priv)		((dev_priv)->info.display.supports_tv)
-#define I915_HAS_HOTPLUG(dev_priv)	((dev_priv)->info.display.has_hotplug)
+#define SUPPORTS_TV(dev_priv)		(INTEL_INFO(dev_priv)->display.supports_tv)
+#define I915_HAS_HOTPLUG(dev_priv)	(INTEL_INFO(dev_priv)->display.has_hotplug)
 
 #define HAS_FW_BLC(dev_priv) 	(INTEL_GEN(dev_priv) > 2)
-#define HAS_FBC(dev_priv)	((dev_priv)->info.display.has_fbc)
+#define HAS_FBC(dev_priv)	(INTEL_INFO(dev_priv)->display.has_fbc)
 #define HAS_CUR_FBC(dev_priv)	(!HAS_GMCH_DISPLAY(dev_priv) && INTEL_GEN(dev_priv) >= 7)
 
 #define HAS_IPS(dev_priv)	(IS_HSW_ULT(dev_priv) || IS_BROADWELL(dev_priv))
 
-#define HAS_DP_MST(dev_priv)	((dev_priv)->info.display.has_dp_mst)
+#define HAS_DP_MST(dev_priv)	(INTEL_INFO(dev_priv)->display.has_dp_mst)
 
-#define HAS_DDI(dev_priv)		 ((dev_priv)->info.display.has_ddi)
-#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) ((dev_priv)->info.has_fpga_dbg)
-#define HAS_PSR(dev_priv)		 ((dev_priv)->info.display.has_psr)
+#define HAS_DDI(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ddi)
+#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->has_fpga_dbg)
+#define HAS_PSR(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_psr)
 
-#define HAS_RC6(dev_priv)		 ((dev_priv)->info.has_rc6)
-#define HAS_RC6p(dev_priv)		 ((dev_priv)->info.has_rc6p)
+#define HAS_RC6(dev_priv)		 (INTEL_INFO(dev_priv)->has_rc6)
+#define HAS_RC6p(dev_priv)		 (INTEL_INFO(dev_priv)->has_rc6p)
 #define HAS_RC6pp(dev_priv)		 (false) /* HW was never validated */
 
-#define HAS_CSR(dev_priv)	((dev_priv)->info.display.has_csr)
+#define HAS_CSR(dev_priv)	(INTEL_INFO(dev_priv)->display.has_csr)
 
-#define HAS_RUNTIME_PM(dev_priv) ((dev_priv)->info.has_runtime_pm)
-#define HAS_64BIT_RELOC(dev_priv) ((dev_priv)->info.has_64bit_reloc)
+#define HAS_RUNTIME_PM(dev_priv) (INTEL_INFO(dev_priv)->has_runtime_pm)
+#define HAS_64BIT_RELOC(dev_priv) (INTEL_INFO(dev_priv)->has_64bit_reloc)
 
-#define HAS_IPC(dev_priv)		 ((dev_priv)->info.display.has_ipc)
+#define HAS_IPC(dev_priv)		 (INTEL_INFO(dev_priv)->display.has_ipc)
 
 /*
  * For now, anything with a GuC requires uCode loading, and then supports
  * command submission once loaded. But these are logically independent
  * properties, so we have separate macros to test them.
  */
-#define HAS_GUC(dev_priv)	((dev_priv)->info.has_guc)
-#define HAS_GUC_CT(dev_priv)	((dev_priv)->info.has_guc_ct)
+#define HAS_GUC(dev_priv)	(INTEL_INFO(dev_priv)->has_guc)
+#define HAS_GUC_CT(dev_priv)	(INTEL_INFO(dev_priv)->has_guc_ct)
 #define HAS_GUC_UCODE(dev_priv)	(HAS_GUC(dev_priv))
 #define HAS_GUC_SCHED(dev_priv)	(HAS_GUC(dev_priv))
 
@@ -2495,7 +2495,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define USES_GUC_SUBMISSION(dev_priv)	intel_uc_is_using_guc_submission(dev_priv)
 #define USES_HUC(dev_priv)		intel_uc_is_using_huc(dev_priv)
 
-#define HAS_POOLED_EU(dev_priv)	((dev_priv)->info.has_pooled_eu)
+#define HAS_POOLED_EU(dev_priv)	(INTEL_INFO(dev_priv)->has_pooled_eu)
 
 #define INTEL_PCH_DEVICE_ID_MASK		0xff80
 #define INTEL_PCH_IBX_DEVICE_ID_TYPE		0x3b00
@@ -2535,12 +2535,12 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define HAS_PCH_NOP(dev_priv) (INTEL_PCH_TYPE(dev_priv) == PCH_NOP)
 #define HAS_PCH_SPLIT(dev_priv) (INTEL_PCH_TYPE(dev_priv) != PCH_NONE)
 
-#define HAS_GMCH_DISPLAY(dev_priv) ((dev_priv)->info.display.has_gmch_display)
+#define HAS_GMCH_DISPLAY(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch_display)
 
 #define HAS_LSPCON(dev_priv) (INTEL_GEN(dev_priv) >= 9)
 
 /* DPF == dynamic parity feature */
-#define HAS_L3_DPF(dev_priv) ((dev_priv)->info.has_l3_dpf)
+#define HAS_L3_DPF(dev_priv) (INTEL_INFO(dev_priv)->has_l3_dpf)
 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
 				 2 : HAS_L3_DPF(dev_priv))
 
@@ -3302,7 +3302,7 @@ static inline void intel_unregister_dsm_handler(void) { return; }
 static inline struct intel_device_info *
 mkwrite_device_info(struct drm_i915_private *dev_priv)
 {
-	return (struct intel_device_info *)&dev_priv->info;
+	return (struct intel_device_info *)INTEL_INFO(dev_priv);
 }
 
 /* modesetting */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index de1c9d495808..44958d994bfa 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -185,14 +185,14 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
  * Device info offset array based helpers for groups of registers with unevenly
  * spaced base offsets.
  */
-#define _MMIO_PIPE2(pipe, reg)		_MMIO(dev_priv->info.pipe_offsets[pipe] - \
-					      dev_priv->info.pipe_offsets[PIPE_A] + (reg) + \
+#define _MMIO_PIPE2(pipe, reg)		_MMIO(INTEL_INFO(dev_priv)->pipe_offsets[pipe] - \
+					      INTEL_INFO(dev_priv)->pipe_offsets[PIPE_A] + (reg) + \
 					      DISPLAY_MMIO_BASE(dev_priv))
-#define _MMIO_TRANS2(pipe, reg)		_MMIO(dev_priv->info.trans_offsets[(pipe)] - \
-					      dev_priv->info.trans_offsets[TRANSCODER_A] + (reg) + \
+#define _MMIO_TRANS2(pipe, reg)		_MMIO(INTEL_INFO(dev_priv)->trans_offsets[(pipe)] - \
+					      INTEL_INFO(dev_priv)->trans_offsets[TRANSCODER_A] + (reg) + \
 					      DISPLAY_MMIO_BASE(dev_priv))
-#define _CURSOR2(pipe, reg)		_MMIO(dev_priv->info.cursor_offsets[(pipe)] - \
-					      dev_priv->info.cursor_offsets[PIPE_A] + (reg) + \
+#define _CURSOR2(pipe, reg)		_MMIO(INTEL_INFO(dev_priv)->cursor_offsets[(pipe)] - \
+					      INTEL_INFO(dev_priv)->cursor_offsets[PIPE_A] + (reg) + \
 					      DISPLAY_MMIO_BASE(dev_priv))
 
 #define __MASKED_FIELD(mask, value) ((mask) << 16 | (value))
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index e5e5c6e9ed28..fff468f17d2d 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -2361,7 +2361,7 @@ bool intel_has_gpu_reset(struct drm_i915_private *dev_priv)
 
 bool intel_has_reset_engine(struct drm_i915_private *dev_priv)
 {
-	return (dev_priv->info.has_reset_engine &&
+	return (INTEL_INFO(dev_priv)->has_reset_engine &&
 		i915_modparams.reset >= 2);
 }
 

From 1787a98439ccf0a38493a58e914f497a60dbc7c2 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:45 +0200
Subject: [PATCH 091/118] drm/i915: drop intel_device_info_dump()

The debugfs, error state and regular dmesg logging dump needs seem to be
different. Remove the generic dump function only used for the welcome
message. This may be added back later when better abstractions are
identified, but at the moment this seems to be the simplest considering
the device info rework in progress. No longer rely on device info being
a substruct of dev_priv.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/70ff0c7c0ec3ef8747af3c78e272b5a82be3d55b.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_drv.c          |  8 +++++++-
 drivers/gpu/drm/i915/intel_device_info.c | 15 ---------------
 drivers/gpu/drm/i915/intel_device_info.h |  2 --
 3 files changed, 7 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 8d7a3a852c10..fe01d090f9bb 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1636,7 +1636,13 @@ static void i915_welcome_messages(struct drm_i915_private *dev_priv)
 	if (drm_debug & DRM_UT_DRIVER) {
 		struct drm_printer p = drm_debug_printer("i915 device info:");
 
-		intel_device_info_dump(INTEL_INFO(dev_priv), &p);
+		drm_printf(&p, "pciid=0x%04x rev=0x%02x platform=%s gen=%i\n",
+			   INTEL_DEVID(dev_priv),
+			   INTEL_REVID(dev_priv),
+			   intel_platform_name(INTEL_INFO(dev_priv)->platform),
+			   INTEL_GEN(dev_priv));
+
+		intel_device_info_dump_flags(INTEL_INFO(dev_priv), &p);
 		intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index f35e8cff4b99..e0ce0c9791fc 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -113,21 +113,6 @@ void intel_device_info_dump_runtime(const struct intel_runtime_info *info,
 		   info->cs_timestamp_frequency_khz);
 }
 
-void intel_device_info_dump(const struct intel_device_info *info,
-			    struct drm_printer *p)
-{
-	struct drm_i915_private *dev_priv =
-		container_of(info, struct drm_i915_private, info);
-
-	drm_printf(p, "pciid=0x%04x rev=0x%02x platform=%s gen=%i\n",
-		   INTEL_DEVID(dev_priv),
-		   INTEL_REVID(dev_priv),
-		   intel_platform_name(info->platform),
-		   info->gen);
-
-	intel_device_info_dump_flags(info, p);
-}
-
 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
 				     struct drm_printer *p)
 {
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index f0e6d374d4ec..76735869e32d 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -267,8 +267,6 @@ static inline void sseu_set_eus(struct sseu_dev_info *sseu,
 const char *intel_platform_name(enum intel_platform platform);
 
 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
-void intel_device_info_dump(const struct intel_device_info *info,
-			    struct drm_printer *p);
 void intel_device_info_dump_flags(const struct intel_device_info *info,
 				  struct drm_printer *p);
 void intel_device_info_dump_runtime(const struct intel_runtime_info *info,

From 2cc8376fd35022d4576a2859a3763ef2afdd1b65 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 31 Dec 2018 16:56:46 +0200
Subject: [PATCH 092/118] drm/i915: rename dev_priv info to __info to avoid
 usage

Encourage use of INTEL_INFO() to access dev_priv->info to not accumulate
more direct users of ->info, making further changes easier.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5f5d81880046331f77624d00278528abc1cf30c6.1546267488.git.jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_drv.h | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c05d5bb37ffd..7fa2a405c5fe 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1431,7 +1431,7 @@ struct drm_i915_private {
 	struct kmem_cache *dependencies;
 	struct kmem_cache *priorities;
 
-	const struct intel_device_info info;
+	const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
 	struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
 	struct intel_driver_caps caps;
 
@@ -2192,13 +2192,7 @@ static inline unsigned int i915_sg_segment_size(void)
 	return size;
 }
 
-static inline const struct intel_device_info *
-intel_info(const struct drm_i915_private *dev_priv)
-{
-	return &dev_priv->info;
-}
-
-#define INTEL_INFO(dev_priv)	intel_info((dev_priv))
+#define INTEL_INFO(dev_priv)	(&(dev_priv)->__info)
 #define RUNTIME_INFO(dev_priv)	(&(dev_priv)->__runtime)
 #define DRIVER_CAPS(dev_priv)	(&(dev_priv)->caps)
 

From 122503683169b21d9cdb90380a20caad7ba994b6 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 2 Jan 2019 11:44:31 +0000
Subject: [PATCH 093/118] drm/i915/selftests: Take a breath during
 check_partial_mappings()

With kasan on a slow machine, it can take an age to check all the
partial mappings in a single iteration, so break it up with a
cond_resched) to avoid RCU stall reports.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190102114431.23022-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/selftests/i915_gem_object.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
index c3999dd2021e..be7ecb66ad11 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_object.c
@@ -238,6 +238,7 @@ static int check_partial_mapping(struct drm_i915_gem_object *obj,
 		u32 *cpu;
 
 		GEM_BUG_ON(view.partial.size > nreal);
+		cond_resched();
 
 		err = i915_gem_object_set_to_gtt_domain(obj, true);
 		if (err) {

From 476af9c2606354f14272297cea8b98afcb94cd8f Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 2 Jan 2019 16:35:24 +0000
Subject: [PATCH 094/118] drm/i915/gen6: Flush RING_IMR changes before changing
 the global GT IMR

On Baytail, notably, we can still detect missed interrupt syndrome
(where we never spot a completed request). In this case, it can be
alleviated by always keeping the interrupt unmasked, implying that the
interrupt is being lost in the window after modifying the IMR. (This is
the reason we still have the posting reads on enable_irq, if we remove
them we miss interrupts!) Having narrowed the issue down to the IMR,
rather than keeping it always enabled, applying the usual posting
read/flush of the RING_IMR before unmasking the GT IMR also seems to
prevent the missed interrupt. So be it.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190102163524.19353-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 8967dcb5f58f..3d5d6b908148 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -974,6 +974,10 @@ gen6_irq_enable(struct intel_engine_cs *engine)
 	I915_WRITE_IMR(engine,
 		       ~(engine->irq_enable_mask |
 			 engine->irq_keep_mask));
+
+	/* Flush/delay to ensure the RING_IMR is active before the GT IMR */
+	POSTING_READ_FW(RING_IMR(engine->mmio_base));
+
 	gen5_enable_gt_irq(dev_priv, engine->irq_enable_mask);
 }
 

From 57428bccdb139dadcfdfa49e335d01d111fc40ac Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 3 Jan 2019 10:12:45 +0000
Subject: [PATCH 095/118] drm/i915: Show machine type in error state

As the question of 32b/64b kernels became relevant in the light of
certain bugs, include that information in the error state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190103101245.15100-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 6238a06b6d4e..5533a741abeb 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -665,7 +665,9 @@ static void __err_print_to_sgl(struct drm_i915_error_state_buf *m,
 
 	if (*error->error_msg)
 		err_printf(m, "%s\n", error->error_msg);
-	err_printf(m, "Kernel: %s\n", init_utsname()->release);
+	err_printf(m, "Kernel: %s %s\n",
+		   init_utsname()->release,
+		   init_utsname()->machine);
 	ts = ktime_to_timespec64(error->time);
 	err_printf(m, "Time: %lld s %ld us\n",
 		   (s64)ts.tv_sec, ts.tv_nsec / NSEC_PER_USEC);

From 55277e1f3107c0b7f18aaa1572ab97081ccde57a Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 3 Jan 2019 11:21:04 +0000
Subject: [PATCH 096/118] drm/i915: Always try to reset the GPU on takeover

When we first introduced the reset to sanitize the GPU on taking over
from the BIOS and before returning control to third parties (the BIOS!),
we restricted it to only systems utilizing HW contexts as we were
uncertain of how stable our reset mechanism truly was. We now have
reasonable coverage across all machines that expose a GPU reset method,
and so we should be safe to sanitize the GPU state everywhere.

v2: We _have_ to skip the reset if it would clobber the display.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190103112104.19561-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_drv.c           |  2 +-
 drivers/gpu/drm/i915/i915_gem.c           | 11 ++---------
 drivers/gpu/drm/i915/i915_pci.c           |  5 +++++
 drivers/gpu/drm/i915/intel_device_info.h  |  1 +
 drivers/gpu/drm/i915/intel_display.c      |  4 ++--
 drivers/gpu/drm/i915/intel_engine_cs.c    | 14 +++++++++++++-
 drivers/gpu/drm/i915/intel_ringbuffer.h   |  2 +-
 drivers/gpu/drm/i915/selftests/i915_gem.c |  2 +-
 8 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index fe01d090f9bb..17fca3ba343e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2180,7 +2180,7 @@ static int i915_drm_resume_early(struct drm_device *dev)
 
 	intel_power_domains_resume(dev_priv);
 
-	intel_engines_sanitize(dev_priv);
+	intel_engines_sanitize(dev_priv, true);
 
 	enable_rpm_wakeref_asserts(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e872d0a179f0..4b1656d2482e 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3418,8 +3418,7 @@ bool i915_gem_unset_wedged(struct drm_i915_private *i915)
 	i915_retire_requests(i915);
 	GEM_BUG_ON(i915->gt.active_requests);
 
-	if (!intel_gpu_reset(i915, ALL_ENGINES))
-		intel_engines_sanitize(i915);
+	intel_engines_sanitize(i915, false);
 
 	/*
 	 * Undo nop_submit_request. We prevent all new i915 requests from
@@ -5023,8 +5022,6 @@ void __i915_gem_object_release_unless_active(struct drm_i915_gem_object *obj)
 
 void i915_gem_sanitize(struct drm_i915_private *i915)
 {
-	int err;
-
 	GEM_TRACE("\n");
 
 	mutex_lock(&i915->drm.struct_mutex);
@@ -5049,11 +5046,7 @@ void i915_gem_sanitize(struct drm_i915_private *i915)
 	 * it may impact the display and we are uncertain about the stability
 	 * of the reset, so this could be applied to even earlier gen.
 	 */
-	err = -ENODEV;
-	if (INTEL_GEN(i915) >= 5 && intel_has_gpu_reset(i915))
-		err = WARN_ON(intel_gpu_reset(i915, ALL_ENGINES));
-	if (!err)
-		intel_engines_sanitize(i915);
+	intel_engines_sanitize(i915, false);
 
 	intel_uncore_forcewake_put(i915, FORCEWAKE_ALL);
 	intel_runtime_pm_put(i915);
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 0d342f2b44a5..dd4aff2b256e 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -82,6 +82,7 @@
 	.display.has_overlay = 1, \
 	.display.overlay_needs_physical = 1, \
 	.display.has_gmch_display = 1, \
+	.gpu_reset_clobbers_display = true, \
 	.hws_needs_physical = 1, \
 	.unfenced_needs_alignment = 1, \
 	.ring_mask = RENDER_RING, \
@@ -122,6 +123,7 @@ static const struct intel_device_info intel_i865g_info = {
 	GEN(3), \
 	.num_pipes = 2, \
 	.display.has_gmch_display = 1, \
+	.gpu_reset_clobbers_display = true, \
 	.ring_mask = RENDER_RING, \
 	.has_snoop = true, \
 	.has_coherent_ggtt = true, \
@@ -198,6 +200,7 @@ static const struct intel_device_info intel_pineview_info = {
 	.num_pipes = 2, \
 	.display.has_hotplug = 1, \
 	.display.has_gmch_display = 1, \
+	.gpu_reset_clobbers_display = true, \
 	.ring_mask = RENDER_RING, \
 	.has_snoop = true, \
 	.has_coherent_ggtt = true, \
@@ -228,6 +231,7 @@ static const struct intel_device_info intel_g45_info = {
 	GEN4_FEATURES,
 	PLATFORM(INTEL_G45),
 	.ring_mask = RENDER_RING | BSD_RING,
+	.gpu_reset_clobbers_display = false,
 };
 
 static const struct intel_device_info intel_gm45_info = {
@@ -237,6 +241,7 @@ static const struct intel_device_info intel_gm45_info = {
 	.display.has_fbc = 1,
 	.display.supports_tv = 1,
 	.ring_mask = RENDER_RING | BSD_RING,
+	.gpu_reset_clobbers_display = false,
 };
 
 #define GEN5_FEATURES \
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 76735869e32d..957c6527f76b 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -89,6 +89,7 @@ enum intel_ppgtt {
 	func(is_alpha_support); \
 	/* Keep has_* in alphabetical order */ \
 	func(has_64bit_reloc); \
+	func(gpu_reset_clobbers_display); \
 	func(has_reset_engine); \
 	func(has_fpga_dbg); \
 	func(has_guc); \
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 665b483bbbcc..699ee6946891 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3746,8 +3746,8 @@ __intel_display_resume(struct drm_device *dev,
 
 static bool gpu_reset_clobbers_display(struct drm_i915_private *dev_priv)
 {
-	return intel_has_gpu_reset(dev_priv) &&
-		INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv);
+	return (INTEL_INFO(dev_priv)->gpu_reset_clobbers_display &&
+		intel_has_gpu_reset(dev_priv));
 }
 
 void intel_prepare_reset(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 2aa3e0d7e6a3..5990f8500bca 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1043,22 +1043,34 @@ void intel_engines_reset_default_submission(struct drm_i915_private *i915)
 		engine->set_default_submission(engine);
 }
 
+static bool reset_engines(struct drm_i915_private *i915)
+{
+	if (INTEL_INFO(i915)->gpu_reset_clobbers_display)
+		return false;
+
+	return intel_gpu_reset(i915, ALL_ENGINES) == 0;
+}
+
 /**
  * intel_engines_sanitize: called after the GPU has lost power
  * @i915: the i915 device
+ * @force: ignore a failed reset and sanitize engine state anyway
  *
  * Anytime we reset the GPU, either with an explicit GPU reset or through a
  * PCI power cycle, the GPU loses state and we must reset our state tracking
  * to match. Note that calling intel_engines_sanitize() if the GPU has not
  * been reset results in much confusion!
  */
-void intel_engines_sanitize(struct drm_i915_private *i915)
+void intel_engines_sanitize(struct drm_i915_private *i915, bool force)
 {
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 
 	GEM_TRACE("\n");
 
+	if (!reset_engines(i915) && !force)
+		return;
+
 	for_each_engine(engine, i915, id) {
 		if (engine->reset.reset)
 			engine->reset.reset(engine, NULL);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 69287e77b929..3c1366c58cf3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -1019,7 +1019,7 @@ gen8_emit_ggtt_write(u32 *cs, u32 value, u32 gtt_offset)
 	return cs;
 }
 
-void intel_engines_sanitize(struct drm_i915_private *i915);
+void intel_engines_sanitize(struct drm_i915_private *i915, bool force);
 
 bool intel_engine_is_idle(struct intel_engine_cs *engine);
 bool intel_engines_are_idle(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem.c b/drivers/gpu/drm/i915/selftests/i915_gem.c
index d0aa19d17653..bdcc53e15e75 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem.c
@@ -121,7 +121,7 @@ static void pm_resume(struct drm_i915_private *i915)
 	 */
 	intel_runtime_pm_get(i915);
 
-	intel_engines_sanitize(i915);
+	intel_engines_sanitize(i915, false);
 	i915_gem_sanitize(i915);
 	i915_gem_resume(i915);
 

From 55c15512a9cf6e287883ca826a4671a26f4f2afc Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 3 Jan 2019 21:33:40 +0000
Subject: [PATCH 097/118] drm/i915: Do not allow unwedging following a failed
 driver initialisation

If we declare the driver wedged during early initialisation, we leave
the driver in an undefined state (with respect to GEM execution). As
this leads to unexpected behaviour if we allow the user to unwedge the
device (through debugfs, and performed by igt at test start), do not.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190103213340.1669-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4b1656d2482e..60019e9291ce 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3380,6 +3380,9 @@ bool i915_gem_unset_wedged(struct drm_i915_private *i915)
 	if (!test_bit(I915_WEDGED, &i915->gpu_error.flags))
 		return true;
 
+	if (!i915->gt.scratch) /* Never full initialised, recovery impossible */
+		return false;
+
 	GEM_TRACE("start\n");
 
 	/*

From b9d126e75b1ec040d8f6593c95703003859d6110 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 5 Jan 2019 12:07:58 +0000
Subject: [PATCH 098/118] drm/i915: Remove partial attempt to swizzle on
 pread/pwrite

Our attempt to account for bit17 swizzling of pread/pwrite onto tiled
objects was flawed due to the simple fact that we do not always know the
swizzling for a particular page (due to the swizzling varying based on
location in certain unbalanced configurations). Furthermore, the
pread/pwrite paths are now unbalanced in that we are required to use the
GTT as in some cases we do not have direct CPU access to the backing
physical pages (thus some paths trying to account for the swizzle, but
others neglecting, chaos ensues).

There are no known users who do use pread/pwrite into a tiled object
(you need to manually detile anyway, so why now just use mmap and avoid
the copy?) and no user bug reports to indicate that it is being used in
the wild. As no one is hitting the buggy path, we can just remove the
buggy code.

v2: Just use the fault allowing kmap() + normal copy_(to|from)_user
v3: Avoid int overflow in computing 'length' from 'remain' (Tvrtko)

References: fe115628d567 ("drm/i915: Implement pwrite without struct-mutex")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190105120758.9237-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem.c | 183 ++++----------------------------
 1 file changed, 18 insertions(+), 165 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 60019e9291ce..25534d17496f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -859,58 +859,6 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
 	obj->write_domain = 0;
 }
 
-static inline int
-__copy_to_user_swizzled(char __user *cpu_vaddr,
-			const char *gpu_vaddr, int gpu_offset,
-			int length)
-{
-	int ret, cpu_offset = 0;
-
-	while (length > 0) {
-		int cacheline_end = ALIGN(gpu_offset + 1, 64);
-		int this_length = min(cacheline_end - gpu_offset, length);
-		int swizzled_gpu_offset = gpu_offset ^ 64;
-
-		ret = __copy_to_user(cpu_vaddr + cpu_offset,
-				     gpu_vaddr + swizzled_gpu_offset,
-				     this_length);
-		if (ret)
-			return ret + length;
-
-		cpu_offset += this_length;
-		gpu_offset += this_length;
-		length -= this_length;
-	}
-
-	return 0;
-}
-
-static inline int
-__copy_from_user_swizzled(char *gpu_vaddr, int gpu_offset,
-			  const char __user *cpu_vaddr,
-			  int length)
-{
-	int ret, cpu_offset = 0;
-
-	while (length > 0) {
-		int cacheline_end = ALIGN(gpu_offset + 1, 64);
-		int this_length = min(cacheline_end - gpu_offset, length);
-		int swizzled_gpu_offset = gpu_offset ^ 64;
-
-		ret = __copy_from_user(gpu_vaddr + swizzled_gpu_offset,
-				       cpu_vaddr + cpu_offset,
-				       this_length);
-		if (ret)
-			return ret + length;
-
-		cpu_offset += this_length;
-		gpu_offset += this_length;
-		length -= this_length;
-	}
-
-	return 0;
-}
-
 /*
  * Pins the specified object's pages and synchronizes the object with
  * GPU accesses. Sets needs_clflush to non-zero if the caller should
@@ -1030,72 +978,23 @@ int i915_gem_obj_prepare_shmem_write(struct drm_i915_gem_object *obj,
 	return ret;
 }
 
-static void
-shmem_clflush_swizzled_range(char *addr, unsigned long length,
-			     bool swizzled)
-{
-	if (unlikely(swizzled)) {
-		unsigned long start = (unsigned long) addr;
-		unsigned long end = (unsigned long) addr + length;
-
-		/* For swizzling simply ensure that we always flush both
-		 * channels. Lame, but simple and it works. Swizzled
-		 * pwrite/pread is far from a hotpath - current userspace
-		 * doesn't use it at all. */
-		start = round_down(start, 128);
-		end = round_up(end, 128);
-
-		drm_clflush_virt_range((void *)start, end - start);
-	} else {
-		drm_clflush_virt_range(addr, length);
-	}
-
-}
-
-/* Only difference to the fast-path function is that this can handle bit17
- * and uses non-atomic copy and kmap functions. */
 static int
-shmem_pread_slow(struct page *page, int offset, int length,
-		 char __user *user_data,
-		 bool page_do_bit17_swizzling, bool needs_clflush)
+shmem_pread(struct page *page, int offset, int len, char __user *user_data,
+	    bool needs_clflush)
 {
 	char *vaddr;
 	int ret;
 
 	vaddr = kmap(page);
-	if (needs_clflush)
-		shmem_clflush_swizzled_range(vaddr + offset, length,
-					     page_do_bit17_swizzling);
 
-	if (page_do_bit17_swizzling)
-		ret = __copy_to_user_swizzled(user_data, vaddr, offset, length);
-	else
-		ret = __copy_to_user(user_data, vaddr + offset, length);
+	if (needs_clflush)
+		drm_clflush_virt_range(vaddr + offset, len);
+
+	ret = __copy_to_user(user_data, vaddr + offset, len);
+
 	kunmap(page);
 
-	return ret ? - EFAULT : 0;
-}
-
-static int
-shmem_pread(struct page *page, int offset, int length, char __user *user_data,
-	    bool page_do_bit17_swizzling, bool needs_clflush)
-{
-	int ret;
-
-	ret = -ENODEV;
-	if (!page_do_bit17_swizzling) {
-		char *vaddr = kmap_atomic(page);
-
-		if (needs_clflush)
-			drm_clflush_virt_range(vaddr + offset, length);
-		ret = __copy_to_user_inatomic(user_data, vaddr + offset, length);
-		kunmap_atomic(vaddr);
-	}
-	if (ret == 0)
-		return 0;
-
-	return shmem_pread_slow(page, offset, length, user_data,
-				page_do_bit17_swizzling, needs_clflush);
+	return ret ? -EFAULT : 0;
 }
 
 static int
@@ -1104,15 +1003,10 @@ i915_gem_shmem_pread(struct drm_i915_gem_object *obj,
 {
 	char __user *user_data;
 	u64 remain;
-	unsigned int obj_do_bit17_swizzling;
 	unsigned int needs_clflush;
 	unsigned int idx, offset;
 	int ret;
 
-	obj_do_bit17_swizzling = 0;
-	if (i915_gem_object_needs_bit17_swizzle(obj))
-		obj_do_bit17_swizzling = BIT(17);
-
 	ret = mutex_lock_interruptible(&obj->base.dev->struct_mutex);
 	if (ret)
 		return ret;
@@ -1130,7 +1024,6 @@ i915_gem_shmem_pread(struct drm_i915_gem_object *obj,
 		unsigned int length = min_t(u64, remain, PAGE_SIZE - offset);
 
 		ret = shmem_pread(page, offset, length, user_data,
-				  page_to_phys(page) & obj_do_bit17_swizzling,
 				  needs_clflush);
 		if (ret)
 			break;
@@ -1471,33 +1364,6 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
 	return ret;
 }
 
-static int
-shmem_pwrite_slow(struct page *page, int offset, int length,
-		  char __user *user_data,
-		  bool page_do_bit17_swizzling,
-		  bool needs_clflush_before,
-		  bool needs_clflush_after)
-{
-	char *vaddr;
-	int ret;
-
-	vaddr = kmap(page);
-	if (unlikely(needs_clflush_before || page_do_bit17_swizzling))
-		shmem_clflush_swizzled_range(vaddr + offset, length,
-					     page_do_bit17_swizzling);
-	if (page_do_bit17_swizzling)
-		ret = __copy_from_user_swizzled(vaddr, offset, user_data,
-						length);
-	else
-		ret = __copy_from_user(vaddr + offset, user_data, length);
-	if (needs_clflush_after)
-		shmem_clflush_swizzled_range(vaddr + offset, length,
-					     page_do_bit17_swizzling);
-	kunmap(page);
-
-	return ret ? -EFAULT : 0;
-}
-
 /* Per-page copy function for the shmem pwrite fastpath.
  * Flushes invalid cachelines before writing to the target if
  * needs_clflush_before is set and flushes out any written cachelines after
@@ -1505,31 +1371,24 @@ shmem_pwrite_slow(struct page *page, int offset, int length,
  */
 static int
 shmem_pwrite(struct page *page, int offset, int len, char __user *user_data,
-	     bool page_do_bit17_swizzling,
 	     bool needs_clflush_before,
 	     bool needs_clflush_after)
 {
+	char *vaddr;
 	int ret;
 
-	ret = -ENODEV;
-	if (!page_do_bit17_swizzling) {
-		char *vaddr = kmap_atomic(page);
+	vaddr = kmap(page);
 
-		if (needs_clflush_before)
-			drm_clflush_virt_range(vaddr + offset, len);
-		ret = __copy_from_user_inatomic(vaddr + offset, user_data, len);
-		if (needs_clflush_after)
-			drm_clflush_virt_range(vaddr + offset, len);
+	if (needs_clflush_before)
+		drm_clflush_virt_range(vaddr + offset, len);
 
-		kunmap_atomic(vaddr);
-	}
-	if (ret == 0)
-		return ret;
+	ret = __copy_from_user(vaddr + offset, user_data, len);
+	if (!ret && needs_clflush_after)
+		drm_clflush_virt_range(vaddr + offset, len);
 
-	return shmem_pwrite_slow(page, offset, len, user_data,
-				 page_do_bit17_swizzling,
-				 needs_clflush_before,
-				 needs_clflush_after);
+	kunmap(page);
+
+	return ret ? -EFAULT : 0;
 }
 
 static int
@@ -1539,7 +1398,6 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
 	struct drm_i915_private *i915 = to_i915(obj->base.dev);
 	void __user *user_data;
 	u64 remain;
-	unsigned int obj_do_bit17_swizzling;
 	unsigned int partial_cacheline_write;
 	unsigned int needs_clflush;
 	unsigned int offset, idx;
@@ -1554,10 +1412,6 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
 	if (ret)
 		return ret;
 
-	obj_do_bit17_swizzling = 0;
-	if (i915_gem_object_needs_bit17_swizzle(obj))
-		obj_do_bit17_swizzling = BIT(17);
-
 	/* If we don't overwrite a cacheline completely we need to be
 	 * careful to have up-to-date data by first clflushing. Don't
 	 * overcomplicate things and flush the entire patch.
@@ -1574,7 +1428,6 @@ i915_gem_shmem_pwrite(struct drm_i915_gem_object *obj,
 		unsigned int length = min_t(u64, remain, PAGE_SIZE - offset);
 
 		ret = shmem_pwrite(page, offset, length, user_data,
-				   page_to_phys(page) & obj_do_bit17_swizzling,
 				   (offset | length) & partial_cacheline_write,
 				   needs_clflush & CLFLUSH_AFTER);
 		if (ret)

From 963cc126d32d4e33ceb9d92d605959b82ef6a193 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 5 Jan 2019 01:46:52 +0000
Subject: [PATCH 099/118] drm/i915: Fixup kerneldoc for
 intel_device_info_runtime_init

CC [M]  drivers/gpu/drm/i915/intel_device_info.o
drivers/gpu/drm/i915/intel_device_info.c:727: warning: Function parameter or member 'dev_priv' not described in 'intel_device_info_runtime_init'
drivers/gpu/drm/i915/intel_device_info.c:727: warning: Excess function parameter 'info' description in 'intel_device_info_runtime_init'

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190105014652.3472-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_device_info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index e0ce0c9791fc..855a5074ad77 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -709,7 +709,7 @@ static u32 read_timestamp_frequency(struct drm_i915_private *dev_priv)
 
 /**
  * intel_device_info_runtime_init - initialize runtime info
- * @info: intel device info struct
+ * @dev_priv: the i915 device
  *
  * Determine various intel_device_info fields at runtime.
  *

From e4fc69f24b07eca44dba5dab94c574d8602eabb8 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 5 Jan 2019 11:56:47 +0000
Subject: [PATCH 100/118] drm/i915/hsw: Flush RING_IMR changes before changing
 the global GT IMR (vecs)

Haswell also requires the RING_IMR flush for its unique vebox setup to
avoid losing interrupts, as per 476af9c26063 ("drm/i915/gen6: Flush
RING_IMR changes before changing the global GT IMR"):

On Baytail, notably, we can still detect missed interrupt syndrome
(where we never spot a completed request). In this case, it can be
alleviated by always keeping the interrupt unmasked, implying that the
interrupt is being lost in the window after modifying the IMR. (This is
the reason we still have the posting reads on enable_irq, if we remove
them we miss interrupts!) Having narrowed the issue down to the IMR,
rather than keeping it always enabled, applying the usual posting
read/flush of the RING_IMR before unmasking the GT IMR also seems to
prevent the missed interrupt. So be it.

References: 476af9c26063 ("drm/i915/gen6: Flush RING_IMR changes before changing the global GT IMR")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190105115647.4970-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 3d5d6b908148..6e2661e86d18 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -996,6 +996,10 @@ hsw_vebox_irq_enable(struct intel_engine_cs *engine)
 	struct drm_i915_private *dev_priv = engine->i915;
 
 	I915_WRITE_IMR(engine, ~engine->irq_enable_mask);
+
+	/* Flush/delay to ensure the RING_IMR is active before the GT IMR */
+	POSTING_READ_FW(RING_IMR(engine->mmio_base));
+
 	gen6_unmask_pm_irq(dev_priv, engine->irq_enable_mask);
 }
 

From f6e8aa387171919572d3e7556a58a14862e8bf1c Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 7 Jan 2019 11:54:25 +0000
Subject: [PATCH 101/118] drm/i915: Report the number of closed vma held by
 each context in debugfs

Include the total size of closed vma when reporting the per_ctx_stats of
debugfs/i915_gem_objects.

Whilst adjusting the context tracking, note that we can simply use our
list of contexts in i915->contexts rather than circumlocute via
dev->filelist and the per-file context idr, with the result that we can
show objects allocated to different vm (i.e. contexts within a file).

We change the output to show every context of each client, with its own
unique set of objects (for full-ppgtt machines, i.e. gen7+, for older
hardware all objects are in the global gtt and so can not be associated
with a single context). That should result in no loss of information,
and for gen7+, no duplication of active objects.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107115509.12523-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_debugfs.c | 130 +++++++++++-----------------
 1 file changed, 50 insertions(+), 80 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 193823048f96..c77326a7d058 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -297,11 +297,12 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 }
 
 struct file_stats {
-	struct drm_i915_file_private *file_priv;
+	struct i915_address_space *vm;
 	unsigned long count;
 	u64 total, unbound;
 	u64 global, shared;
 	u64 active, inactive;
+	u64 closed;
 };
 
 static int per_file_stats(int id, void *ptr, void *data)
@@ -326,9 +327,7 @@ static int per_file_stats(int id, void *ptr, void *data)
 		if (i915_vma_is_ggtt(vma)) {
 			stats->global += vma->node.size;
 		} else {
-			struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm);
-
-			if (ppgtt->vm.file != stats->file_priv)
+			if (vma->vm != stats->vm)
 				continue;
 		}
 
@@ -336,6 +335,9 @@ static int per_file_stats(int id, void *ptr, void *data)
 			stats->active += vma->node.size;
 		else
 			stats->inactive += vma->node.size;
+
+		if (i915_vma_is_closed(vma))
+			stats->closed += vma->node.size;
 	}
 
 	return 0;
@@ -343,7 +345,7 @@ static int per_file_stats(int id, void *ptr, void *data)
 
 #define print_file_stats(m, name, stats) do { \
 	if (stats.count) \
-		seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
+		seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound, %llu closed)\n", \
 			   name, \
 			   stats.count, \
 			   stats.total, \
@@ -351,20 +353,19 @@ static int per_file_stats(int id, void *ptr, void *data)
 			   stats.inactive, \
 			   stats.global, \
 			   stats.shared, \
-			   stats.unbound); \
+			   stats.unbound, \
+			   stats.closed); \
 } while (0)
 
 static void print_batch_pool_stats(struct seq_file *m,
 				   struct drm_i915_private *dev_priv)
 {
 	struct drm_i915_gem_object *obj;
-	struct file_stats stats;
 	struct intel_engine_cs *engine;
+	struct file_stats stats = {};
 	enum intel_engine_id id;
 	int j;
 
-	memset(&stats, 0, sizeof(stats));
-
 	for_each_engine(engine, dev_priv, id) {
 		for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
 			list_for_each_entry(obj,
@@ -377,44 +378,47 @@ static void print_batch_pool_stats(struct seq_file *m,
 	print_file_stats(m, "[k]batch pool", stats);
 }
 
-static int per_file_ctx_stats(int idx, void *ptr, void *data)
-{
-	struct i915_gem_context *ctx = ptr;
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-
-	for_each_engine(engine, ctx->i915, id) {
-		struct intel_context *ce = to_intel_context(ctx, engine);
-
-		if (ce->state)
-			per_file_stats(0, ce->state->obj, data);
-		if (ce->ring)
-			per_file_stats(0, ce->ring->vma->obj, data);
-	}
-
-	return 0;
-}
-
 static void print_context_stats(struct seq_file *m,
-				struct drm_i915_private *dev_priv)
+				struct drm_i915_private *i915)
 {
-	struct drm_device *dev = &dev_priv->drm;
-	struct file_stats stats;
-	struct drm_file *file;
+	struct file_stats kstats = {};
+	struct i915_gem_context *ctx;
 
-	memset(&stats, 0, sizeof(stats));
+	list_for_each_entry(ctx, &i915->contexts.list, link) {
+		struct intel_engine_cs *engine;
+		enum intel_engine_id id;
 
-	mutex_lock(&dev->struct_mutex);
-	if (dev_priv->kernel_context)
-		per_file_ctx_stats(0, dev_priv->kernel_context, &stats);
+		for_each_engine(engine, i915, id) {
+			struct intel_context *ce = to_intel_context(ctx, engine);
 
-	list_for_each_entry(file, &dev->filelist, lhead) {
-		struct drm_i915_file_private *fpriv = file->driver_priv;
-		idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats);
+			if (ce->state)
+				per_file_stats(0, ce->state->obj, &kstats);
+			if (ce->ring)
+				per_file_stats(0, ce->ring->vma->obj, &kstats);
+		}
+
+		if (!IS_ERR_OR_NULL(ctx->file_priv)) {
+			struct file_stats stats = { .vm = &ctx->ppgtt->vm, };
+			struct drm_file *file = ctx->file_priv->file;
+			struct task_struct *task;
+			char name[80];
+
+			spin_lock(&file->table_lock);
+			idr_for_each(&file->object_idr, per_file_stats, &stats);
+			spin_unlock(&file->table_lock);
+
+			rcu_read_lock();
+			task = pid_task(ctx->pid ?: file->pid, PIDTYPE_PID);
+			snprintf(name, sizeof(name), "%s/%d",
+				 task ? task->comm : "<unknown>",
+				 ctx->user_handle);
+			rcu_read_unlock();
+
+			print_file_stats(m, name, stats);
+		}
 	}
-	mutex_unlock(&dev->struct_mutex);
 
-	print_file_stats(m, "[k]contexts", stats);
+	print_file_stats(m, "[k]contexts", kstats);
 }
 
 static int i915_gem_object_info(struct seq_file *m, void *data)
@@ -426,14 +430,9 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
 	u64 size, mapped_size, purgeable_size, dpy_size, huge_size;
 	struct drm_i915_gem_object *obj;
 	unsigned int page_sizes = 0;
-	struct drm_file *file;
 	char buf[80];
 	int ret;
 
-	ret = mutex_lock_interruptible(&dev->struct_mutex);
-	if (ret)
-		return ret;
-
 	seq_printf(m, "%u objects, %llu bytes\n",
 		   dev_priv->mm.object_count,
 		   dev_priv->mm.object_memory);
@@ -514,43 +513,14 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
 					buf, sizeof(buf)));
 
 	seq_putc(m, '\n');
+
+	ret = mutex_lock_interruptible(&dev->struct_mutex);
+	if (ret)
+		return ret;
+
 	print_batch_pool_stats(m, dev_priv);
-	mutex_unlock(&dev->struct_mutex);
-
-	mutex_lock(&dev->filelist_mutex);
 	print_context_stats(m, dev_priv);
-	list_for_each_entry_reverse(file, &dev->filelist, lhead) {
-		struct file_stats stats;
-		struct drm_i915_file_private *file_priv = file->driver_priv;
-		struct i915_request *request;
-		struct task_struct *task;
-
-		mutex_lock(&dev->struct_mutex);
-
-		memset(&stats, 0, sizeof(stats));
-		stats.file_priv = file->driver_priv;
-		spin_lock(&file->table_lock);
-		idr_for_each(&file->object_idr, per_file_stats, &stats);
-		spin_unlock(&file->table_lock);
-		/*
-		 * Although we have a valid reference on file->pid, that does
-		 * not guarantee that the task_struct who called get_pid() is
-		 * still alive (e.g. get_pid(current) => fork() => exit()).
-		 * Therefore, we need to protect this ->comm access using RCU.
-		 */
-		request = list_first_entry_or_null(&file_priv->mm.request_list,
-						   struct i915_request,
-						   client_link);
-		rcu_read_lock();
-		task = pid_task(request && request->gem_context->pid ?
-				request->gem_context->pid : file->pid,
-				PIDTYPE_PID);
-		print_file_stats(m, task ? task->comm : "<unknown>", stats);
-		rcu_read_unlock();
-
-		mutex_unlock(&dev->struct_mutex);
-	}
-	mutex_unlock(&dev->filelist_mutex);
+	mutex_unlock(&dev->struct_mutex);
 
 	return 0;
 }

From d58f0083d39a17f8e5efbef522f822625956477e Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 7 Jan 2019 18:18:56 +0000
Subject: [PATCH 102/118] drm/i915/selftests: Mark the whole mock device as DMA
 capable

Being a mock device, we suffer no DMA restrictions, so set the coherent
mask to 64b.

v2: Fix up mock_huge_selftests

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109243
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107181856.23789-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/selftests/huge_pages.c      | 4 ----
 drivers/gpu/drm/i915/selftests/mock_gem_device.c | 2 +-
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c
index a0c7cbc212ba..6c10734e948d 100644
--- a/drivers/gpu/drm/i915/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/selftests/huge_pages.c
@@ -1702,7 +1702,6 @@ int i915_gem_huge_page_mock_selftests(void)
 	};
 	struct drm_i915_private *dev_priv;
 	struct i915_hw_ppgtt *ppgtt;
-	struct pci_dev *pdev;
 	int err;
 
 	dev_priv = mock_gem_device();
@@ -1712,9 +1711,6 @@ int i915_gem_huge_page_mock_selftests(void)
 	/* Pretend to be a device which supports the 48b PPGTT */
 	mkwrite_device_info(dev_priv)->ppgtt = INTEL_PPGTT_FULL_4LVL;
 
-	pdev = dev_priv->drm.pdev;
-	dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(39));
-
 	mutex_lock(&dev_priv->drm.struct_mutex);
 	ppgtt = i915_ppgtt_create(dev_priv, ERR_PTR(-ENODEV));
 	if (IS_ERR(ppgtt)) {
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 43ed8b28aeaa..baa3c38919de 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -147,7 +147,7 @@ struct drm_i915_private *mock_gem_device(void)
 	pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
 	pdev->dev.release = release_dev;
 	dev_set_name(&pdev->dev, "mock");
-	dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 
 #if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU)
 	/* hack to disable iommu for the fake device; force identity mapping */

From d25f71a162a960300eac0129574217e3db8cdbda Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 7 Jan 2019 11:54:24 +0000
Subject: [PATCH 103/118] drm/i915: Return immediately if trylock fails for
 direct-reclaim

Ignore trying to shrink from i915 if we fail to acquire the struct_mutex
in the shrinker while performing direct-reclaim. The trade-off being
(much) lower latency for non-i915 clients at an increased risk of being
unable to obtain a page from direct-reclaim without hitting the
oom-notifier. The proviso being that we still keep trying to hard
obtain the lock for kswapd so that we can reap under heavy memory
pressure.

v2: Taint all mutexes taken within the shrinker with the struct_mutex
subclass as an early warning system, and drop I915_SHRINK_ACTIVE from
vmap to reduce the number of dangerous paths. We also have to drop
I915_SHRINK_ACTIVE from oom-notifier to be able to make the same claim
that ACTIVE is only used from outside context, which fits in with a
longer strategy of avoiding stalls due to scanning active during
shrinking.

The danger in using the subclass struct_mutex is that we declare
ourselves more knowledgable than lockdep and deprive ourselves of
automatic coverage. Instead, we require ourselves to mark up any mutex
taken inside the shrinker in order to detect lock-inversion, and if we
miss any we are doomed to a deadlock at the worst possible moment.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107115509.12523-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_drv.h          |  7 +--
 drivers/gpu/drm/i915/i915_gem_gtt.c      |  8 +--
 drivers/gpu/drm/i915/i915_gem_shrinker.c | 68 ++++++++++++++++--------
 3 files changed, 54 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7fa2a405c5fe..17a017645c5d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2899,9 +2899,9 @@ i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
 	__i915_gem_object_unpin_pages(obj);
 }
 
-enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock */
+enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock/struct_mutex */
 	I915_MM_NORMAL = 0,
-	I915_MM_SHRINKER
+	I915_MM_SHRINKER /* called "recursively" from direct-reclaim-esque */
 };
 
 void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj,
@@ -3187,7 +3187,8 @@ unsigned long i915_gem_shrink(struct drm_i915_private *i915,
 unsigned long i915_gem_shrink_all(struct drm_i915_private *i915);
 void i915_gem_shrinker_register(struct drm_i915_private *i915);
 void i915_gem_shrinker_unregister(struct drm_i915_private *i915);
-void i915_gem_shrinker_taints_mutex(struct mutex *mutex);
+void i915_gem_shrinker_taints_mutex(struct drm_i915_private *i915,
+				    struct mutex *mutex);
 
 /* i915_gem_tiling.c */
 static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index d4c5973ea33d..5cc8968eb3bf 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -483,7 +483,7 @@ static void i915_address_space_init(struct i915_address_space *vm,
 	 * attempt holding the lock is immediately reported by lockdep.
 	 */
 	mutex_init(&vm->mutex);
-	i915_gem_shrinker_taints_mutex(&vm->mutex);
+	i915_gem_shrinker_taints_mutex(vm->i915, &vm->mutex);
 
 	GEM_BUG_ON(!vm->total);
 	drm_mm_init(&vm->mm, 0, vm->total);
@@ -2245,7 +2245,8 @@ int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
 				     DMA_ATTR_NO_WARN))
 			return 0;
 
-		/* If the DMA remap fails, one cause can be that we have
+		/*
+		 * If the DMA remap fails, one cause can be that we have
 		 * too many objects pinned in a small remapping table,
 		 * such as swiotlb. Incrementally purge all other objects and
 		 * try again - if there are no more pages to remove from
@@ -2255,8 +2256,7 @@ int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
 	} while (i915_gem_shrink(to_i915(obj->base.dev),
 				 obj->base.size >> PAGE_SHIFT, NULL,
 				 I915_SHRINK_BOUND |
-				 I915_SHRINK_UNBOUND |
-				 I915_SHRINK_ACTIVE));
+				 I915_SHRINK_UNBOUND));
 
 	return -ENOSPC;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index ea90d3a0d511..72d6ea0cac7e 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -36,7 +36,9 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 
-static bool shrinker_lock(struct drm_i915_private *i915, bool *unlock)
+static bool shrinker_lock(struct drm_i915_private *i915,
+			  unsigned int flags,
+			  bool *unlock)
 {
 	switch (mutex_trylock_recursive(&i915->drm.struct_mutex)) {
 	case MUTEX_TRYLOCK_RECURSIVE:
@@ -45,15 +47,11 @@ static bool shrinker_lock(struct drm_i915_private *i915, bool *unlock)
 
 	case MUTEX_TRYLOCK_FAILED:
 		*unlock = false;
-		preempt_disable();
-		do {
-			cpu_relax();
-			if (mutex_trylock(&i915->drm.struct_mutex)) {
-				*unlock = true;
-				break;
-			}
-		} while (!need_resched());
-		preempt_enable();
+		if (flags & I915_SHRINK_ACTIVE) {
+			mutex_lock_nested(&i915->drm.struct_mutex,
+					  I915_MM_SHRINKER);
+			*unlock = true;
+		}
 		return *unlock;
 
 	case MUTEX_TRYLOCK_SUCCESS:
@@ -160,7 +158,7 @@ i915_gem_shrink(struct drm_i915_private *i915,
 	unsigned long scanned = 0;
 	bool unlock;
 
-	if (!shrinker_lock(i915, &unlock))
+	if (!shrinker_lock(i915, flags, &unlock))
 		return 0;
 
 	/*
@@ -357,7 +355,7 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
 
 	sc->nr_scanned = 0;
 
-	if (!shrinker_lock(i915, &unlock))
+	if (!shrinker_lock(i915, 0, &unlock))
 		return SHRINK_STOP;
 
 	freed = i915_gem_shrink(i915,
@@ -397,7 +395,7 @@ shrinker_lock_uninterruptible(struct drm_i915_private *i915, bool *unlock,
 	do {
 		if (i915_gem_wait_for_idle(i915,
 					   0, MAX_SCHEDULE_TIMEOUT) == 0 &&
-		    shrinker_lock(i915, unlock))
+		    shrinker_lock(i915, 0, unlock))
 			break;
 
 		schedule_timeout_killable(1);
@@ -421,7 +419,11 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
 	struct drm_i915_gem_object *obj;
 	unsigned long unevictable, bound, unbound, freed_pages;
 
-	freed_pages = i915_gem_shrink_all(i915);
+	intel_runtime_pm_get(i915);
+	freed_pages = i915_gem_shrink(i915, -1UL, NULL,
+				      I915_SHRINK_BOUND |
+				      I915_SHRINK_UNBOUND);
+	intel_runtime_pm_put(i915);
 
 	/* Because we may be allocating inside our own driver, we cannot
 	 * assert that there are no objects with pinned pages that are not
@@ -447,10 +449,6 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
 		pr_info("Purging GPU memory, %lu pages freed, "
 			"%lu pages still pinned.\n",
 			freed_pages, unevictable);
-	if (unbound || bound)
-		pr_err("%lu and %lu pages still available in the "
-		       "bound and unbound GPU page lists.\n",
-		       bound, unbound);
 
 	*(unsigned long *)ptr += freed_pages;
 	return NOTIFY_DONE;
@@ -480,7 +478,6 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
 	freed_pages += i915_gem_shrink(i915, -1UL, NULL,
 				       I915_SHRINK_BOUND |
 				       I915_SHRINK_UNBOUND |
-				       I915_SHRINK_ACTIVE |
 				       I915_SHRINK_VMAPS);
 	intel_runtime_pm_put(i915);
 
@@ -533,13 +530,40 @@ void i915_gem_shrinker_unregister(struct drm_i915_private *i915)
 	unregister_shrinker(&i915->mm.shrinker);
 }
 
-void i915_gem_shrinker_taints_mutex(struct mutex *mutex)
+void i915_gem_shrinker_taints_mutex(struct drm_i915_private *i915,
+				    struct mutex *mutex)
 {
+	bool unlock = false;
+
 	if (!IS_ENABLED(CONFIG_LOCKDEP))
 		return;
 
+	if (!lockdep_is_held_type(&i915->drm.struct_mutex, -1)) {
+		mutex_acquire(&i915->drm.struct_mutex.dep_map,
+			      I915_MM_NORMAL, 0, _RET_IP_);
+		unlock = true;
+	}
+
 	fs_reclaim_acquire(GFP_KERNEL);
-	mutex_lock(mutex);
-	mutex_unlock(mutex);
+
+	/*
+	 * As we invariably rely on the struct_mutex within the shrinker,
+	 * but have a complicated recursion dance, taint all the mutexes used
+	 * within the shrinker with the struct_mutex. For completeness, we
+	 * taint with all subclass of struct_mutex, even though we should
+	 * only need tainting by I915_MM_NORMAL to catch possible ABBA
+	 * deadlocks from using struct_mutex inside @mutex.
+	 */
+	mutex_acquire(&i915->drm.struct_mutex.dep_map,
+		      I915_MM_SHRINKER, 0, _RET_IP_);
+
+	mutex_acquire(&mutex->dep_map, 0, 0, _RET_IP_);
+	mutex_release(&mutex->dep_map, 0, _RET_IP_);
+
+	mutex_release(&i915->drm.struct_mutex.dep_map, 0, _RET_IP_);
+
 	fs_reclaim_release(GFP_KERNEL);
+
+	if (unlock)
+		mutex_release(&i915->drm.struct_mutex.dep_map, 0, _RET_IP_);
 }

From 5852a15cbc940f407f4d10f40684bff95595f5a1 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 7 Jan 2019 16:51:49 +0200
Subject: [PATCH 104/118] Ndrm/i915/debugfs: store rotation string buffer on
 stack

Minimal change to nuke the static buf.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107145149.10069-1-jani.nikula@intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index c77326a7d058..95813e21ae02 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2961,14 +2961,13 @@ static const char *plane_type(enum drm_plane_type type)
 	return "unknown";
 }
 
-static const char *plane_rotation(unsigned int rotation)
+static void plane_rotation(char *buf, size_t bufsize, unsigned int rotation)
 {
-	static char buf[48];
 	/*
 	 * According to doc only one DRM_MODE_ROTATE_ is allowed but this
 	 * will print them all to visualize if the values are misused
 	 */
-	snprintf(buf, sizeof(buf),
+	snprintf(buf, bufsize,
 		 "%s%s%s%s%s%s(0x%08x)",
 		 (rotation & DRM_MODE_ROTATE_0) ? "0 " : "",
 		 (rotation & DRM_MODE_ROTATE_90) ? "90 " : "",
@@ -2977,8 +2976,6 @@ static const char *plane_rotation(unsigned int rotation)
 		 (rotation & DRM_MODE_REFLECT_X) ? "FLIPX " : "",
 		 (rotation & DRM_MODE_REFLECT_Y) ? "FLIPY " : "",
 		 rotation);
-
-	return buf;
 }
 
 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
@@ -2991,6 +2988,7 @@ static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
 		struct drm_plane_state *state;
 		struct drm_plane *plane = &intel_plane->base;
 		struct drm_format_name_buf format_name;
+		char rot_str[48];
 
 		if (!plane->state) {
 			seq_puts(m, "plane->state is NULL!\n");
@@ -3006,6 +3004,8 @@ static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
 			sprintf(format_name.str, "N/A");
 		}
 
+		plane_rotation(rot_str, sizeof(rot_str), state->rotation);
+
 		seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n",
 			   plane->base.id,
 			   plane_type(intel_plane->base.type),
@@ -3020,7 +3020,7 @@ static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
 			   (state->src_h >> 16),
 			   ((state->src_h & 0xffff) * 15625) >> 10,
 			   format_name.str,
-			   plane_rotation(state->rotation));
+			   rot_str);
 	}
 }
 

From f2bb09b63282bad07ade52560f73abde35462c50 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 8 Jan 2019 15:02:46 +0000
Subject: [PATCH 105/118] drm/i915: Downgrade scare message for unknown HuC
 firmware

If we haven't shipped and enabled firmware for a particular platform,
there is nothing the user can do about it. Don't scare the user with an
unactionable, unidentifiable warning!

<6> [310.769452] i915 0000:00:02.0: GuC: No firmware known for this platform!
<4> [310.769458] [drm] HuC: No firmware known for this platform!

Unify both GuC/HuC messages to include the device for which we lack the
firmware, and provide the platform name as an aide-memoire.

v2: Move and refine the message to common site of intel_uc_fw_fetch.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108150246.1471-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/intel_guc_fw.c |  4 ----
 drivers/gpu/drm/i915/intel_huc_fw.c |  3 ---
 drivers/gpu/drm/i915/intel_uc_fw.c  | 11 ++++++++---
 3 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c
index 4b437e05e2cd..13ff7003c6be 100644
--- a/drivers/gpu/drm/i915/intel_guc_fw.c
+++ b/drivers/gpu/drm/i915/intel_guc_fw.c
@@ -77,10 +77,6 @@ static void guc_fw_select(struct intel_uc_fw *guc_fw)
 		guc_fw->path = I915_KBL_GUC_UCODE;
 		guc_fw->major_ver_wanted = KBL_FW_MAJOR;
 		guc_fw->minor_ver_wanted = KBL_FW_MINOR;
-	} else {
-		dev_info(dev_priv->drm.dev,
-			 "%s: No firmware known for this platform!\n",
-			 intel_uc_fw_type_repr(guc_fw->type));
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/intel_huc_fw.c b/drivers/gpu/drm/i915/intel_huc_fw.c
index 9612227b3c44..7d7bfc7f7ca7 100644
--- a/drivers/gpu/drm/i915/intel_huc_fw.c
+++ b/drivers/gpu/drm/i915/intel_huc_fw.c
@@ -76,9 +76,6 @@ static void huc_fw_select(struct intel_uc_fw *huc_fw)
 		huc_fw->path = I915_KBL_HUC_UCODE;
 		huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR;
 		huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR;
-	} else {
-		DRM_WARN("%s: No firmware known for this platform!\n",
-			 intel_uc_fw_type_repr(huc_fw->type));
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/intel_uc_fw.c b/drivers/gpu/drm/i915/intel_uc_fw.c
index fd496416087c..becf05ebae4d 100644
--- a/drivers/gpu/drm/i915/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/intel_uc_fw.c
@@ -46,12 +46,17 @@ void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
 	size_t size;
 	int err;
 
+	if (!uc_fw->path) {
+		dev_info(dev_priv->drm.dev,
+			 "%s: No firmware was defined for %s!\n",
+			 intel_uc_fw_type_repr(uc_fw->type),
+			 intel_platform_name(INTEL_INFO(dev_priv)->platform));
+		return;
+	}
+
 	DRM_DEBUG_DRIVER("%s fw fetch %s\n",
 			 intel_uc_fw_type_repr(uc_fw->type), uc_fw->path);
 
-	if (!uc_fw->path)
-		return;
-
 	uc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING;
 	DRM_DEBUG_DRIVER("%s fw fetch %s\n",
 			 intel_uc_fw_type_repr(uc_fw->type),

From 2f80d7bd8d93cac9d80fee7339ef673609fa8164 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 8 Jan 2019 10:27:09 +0200
Subject: [PATCH 106/118] drm/i915: drop all drmP.h includes

Needs just a few additional includes here and there.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108082709.3748-1-jani.nikula@intel.com
---
 drivers/gpu/drm/i915/dvo.h                 | 1 -
 drivers/gpu/drm/i915/i915_drv.c            | 1 -
 drivers/gpu/drm/i915/i915_drv.h            | 2 +-
 drivers/gpu/drm/i915/i915_gem.c            | 1 -
 drivers/gpu/drm/i915/i915_gem_context.c    | 1 -
 drivers/gpu/drm/i915/i915_gem_dmabuf.c     | 1 -
 drivers/gpu/drm/i915/i915_gem_evict.c      | 1 -
 drivers/gpu/drm/i915/i915_gem_execbuffer.c | 1 -
 drivers/gpu/drm/i915/i915_gem_fence_reg.c  | 1 -
 drivers/gpu/drm/i915/i915_gem_gtt.c        | 1 -
 drivers/gpu/drm/i915/i915_gem_internal.c   | 1 -
 drivers/gpu/drm/i915/i915_gem_object.h     | 3 ++-
 drivers/gpu/drm/i915/i915_gem_shrinker.c   | 1 -
 drivers/gpu/drm/i915/i915_gem_stolen.c     | 1 -
 drivers/gpu/drm/i915/i915_gem_tiling.c     | 1 -
 drivers/gpu/drm/i915/i915_gem_userptr.c    | 1 -
 drivers/gpu/drm/i915/i915_ioc32.c          | 1 -
 drivers/gpu/drm/i915/i915_irq.c            | 1 -
 drivers/gpu/drm/i915/i915_suspend.c        | 1 -
 drivers/gpu/drm/i915/i915_trace.h          | 1 -
 drivers/gpu/drm/i915/intel_acpi.c          | 1 -
 drivers/gpu/drm/i915/intel_atomic.c        | 1 -
 drivers/gpu/drm/i915/intel_atomic_plane.c  | 1 -
 drivers/gpu/drm/i915/intel_audio.c         | 1 -
 drivers/gpu/drm/i915/intel_bios.c          | 1 -
 drivers/gpu/drm/i915/intel_connector.c     | 1 -
 drivers/gpu/drm/i915/intel_crt.c           | 1 -
 drivers/gpu/drm/i915/intel_display.c       | 1 -
 drivers/gpu/drm/i915/intel_dp.c            | 1 -
 drivers/gpu/drm/i915/intel_dp_mst.c        | 1 -
 drivers/gpu/drm/i915/intel_dsi.h           | 1 -
 drivers/gpu/drm/i915/intel_dsi_vbt.c       | 1 -
 drivers/gpu/drm/i915/intel_dvo.c           | 1 -
 drivers/gpu/drm/i915/intel_fbdev.c         | 1 -
 drivers/gpu/drm/i915/intel_frontbuffer.c   | 1 -
 drivers/gpu/drm/i915/intel_hdcp.c          | 1 -
 drivers/gpu/drm/i915/intel_hdmi.c          | 1 -
 drivers/gpu/drm/i915/intel_hotplug.c       | 1 -
 drivers/gpu/drm/i915/intel_i2c.c           | 1 -
 drivers/gpu/drm/i915/intel_lrc.c           | 1 -
 drivers/gpu/drm/i915/intel_lvds.c          | 1 -
 drivers/gpu/drm/i915/intel_mocs.h          | 1 -
 drivers/gpu/drm/i915/intel_opregion.c      | 1 -
 drivers/gpu/drm/i915/intel_overlay.c       | 1 -
 drivers/gpu/drm/i915/intel_psr.c           | 1 -
 drivers/gpu/drm/i915/intel_ringbuffer.c    | 1 -
 drivers/gpu/drm/i915/intel_sdvo.c          | 1 -
 drivers/gpu/drm/i915/intel_sprite.c        | 1 -
 drivers/gpu/drm/i915/intel_tv.c            | 1 -
 drivers/gpu/drm/i915/intel_vdsc.c          | 1 -
 drivers/gpu/drm/i915/vlv_dsi.c             | 1 -
 51 files changed, 3 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/dvo.h b/drivers/gpu/drm/i915/dvo.h
index 5e6a3013da49..16e0345b711f 100644
--- a/drivers/gpu/drm/i915/dvo.h
+++ b/drivers/gpu/drm/i915/dvo.h
@@ -24,7 +24,6 @@
 #define _INTEL_DVO_H
 
 #include <linux/i2c.h>
-#include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include "intel_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 17fca3ba343e..75652dc1e24c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -41,7 +41,6 @@
 #include <linux/vt.h>
 #include <acpi/video.h>
 
-#include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/i915_drm.h>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 17a017645c5d..6f341822653c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -46,7 +46,6 @@
 #include <linux/reservation.h>
 #include <linux/shmem_fs.h>
 
-#include <drm/drmP.h>
 #include <drm/intel-gtt.h>
 #include <drm/drm_legacy.h> /* for struct drm_dma_handle */
 #include <drm/drm_gem.h>
@@ -54,6 +53,7 @@
 #include <drm/drm_cache.h>
 #include <drm/drm_util.h>
 #include <drm/drm_dsc.h>
+#include <drm/drm_connector.h>
 
 #include "i915_fixed.h"
 #include "i915_params.h"
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 57fe90d49df3..74710e5d946e 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -25,7 +25,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_vma_manager.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 014152e2bc68..b68b4345d7be 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -86,7 +86,6 @@
  */
 
 #include <linux/log2.h>
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_trace.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index 82e2ca17a441..02f7298bfe57 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -27,7 +27,6 @@
 #include <linux/dma-buf.h>
 #include <linux/reservation.h>
 
-#include <drm/drmP.h>
 
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 02b83a5ed96c..f6855401f247 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -26,7 +26,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 5b7cd7add63e..e7994505d850 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -31,7 +31,6 @@
 #include <linux/sync_file.h>
 #include <linux/uaccess.h>
 
-#include <drm/drmP.h>
 #include <drm/drm_syncobj.h>
 #include <drm/i915_drm.h>
 
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
index 24df2e2a8fc1..d67c07cdd0b8 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
@@ -21,7 +21,6 @@
  * IN THE SOFTWARE.
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 5cc8968eb3bf..a8807fbed0aa 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -33,7 +33,6 @@
 
 #include <asm/set_memory.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_internal.c b/drivers/gpu/drm/i915/i915_gem_internal.c
index 0d0144b2104c..fddde1033e74 100644
--- a/drivers/gpu/drm/i915/i915_gem_internal.c
+++ b/drivers/gpu/drm/i915/i915_gem_internal.c
@@ -22,7 +22,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h
index a6dd7c46de0d..ff3da64470dd 100644
--- a/drivers/gpu/drm/i915/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/i915_gem_object.h
@@ -29,7 +29,8 @@
 
 #include <drm/drm_vma_manager.h>
 #include <drm/drm_gem.h>
-#include <drm/drmP.h>
+#include <drm/drm_file.h>
+#include <drm/drm_device.h>
 
 #include <drm/i915_drm.h>
 
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 72d6ea0cac7e..34b108f73f1d 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -30,7 +30,6 @@
 #include <linux/pci.h>
 #include <linux/dma-buf.h>
 #include <linux/vmalloc.h>
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 2f756a97689a..9df615eea2d8 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -26,7 +26,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 39319ff1679c..16cc9ddbce34 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -27,7 +27,6 @@
 
 #include <linux/string.h>
 #include <linux/bitops.h>
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 9558582c105e..1fb6a7bb5054 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -22,7 +22,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_trace.h"
diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
index e869daf9c8a9..73c3e8f519e8 100644
--- a/drivers/gpu/drm/i915/i915_ioc32.c
+++ b/drivers/gpu/drm/i915/i915_ioc32.c
@@ -28,7 +28,6 @@
  */
 #include <linux/compat.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index fbb094ecf6c9..3fcb3aad2e54 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -31,7 +31,6 @@
 #include <linux/sysrq.h>
 #include <linux/slab.h>
 #include <linux/circ_buf.h>
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_trace.h"
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index f40ba5e429e0..f18afa2bac8d 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -24,7 +24,6 @@
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "intel_drv.h"
 #include "i915_reg.h"
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 5cf378936b05..33d90eca9cdd 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -6,7 +6,6 @@
 #include <linux/types.h>
 #include <linux/tracepoint.h>
 
-#include <drm/drmP.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
 #include "intel_ringbuffer.h"
diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
index 6ba478e57b9b..9d142d038a7d 100644
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -6,7 +6,6 @@
  */
 #include <linux/pci.h>
 #include <linux/acpi.h>
-#include <drm/drmP.h>
 #include "i915_drv.h"
 
 #define INTEL_DSM_REVISION_ID 1 /* For Calpella anyway... */
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index fdfc7425e644..d8dbc9980281 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -29,7 +29,6 @@
  * See intel_atomic_plane.c for the plane-specific atomic functionality.
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index 0a73e6e65c20..683a75dad4fb 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -31,7 +31,6 @@
  * prepare/check/commit/cleanup steps.
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
 #include "intel_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 0571aa2846a7..202a58cf2d9f 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -27,7 +27,6 @@
 #include <drm/intel_lpe_audio.h>
 #include "intel_drv.h"
 
-#include <drm/drmP.h>
 #include <drm/drm_edid.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 764d84d4109b..140c218128cb 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -26,7 +26,6 @@
  */
 
 #include <drm/drm_dp_helper.h>
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/intel_connector.c b/drivers/gpu/drm/i915/intel_connector.c
index 18e370f607bc..4f4ffd1c8fd3 100644
--- a/drivers/gpu/drm/i915/intel_connector.c
+++ b/drivers/gpu/drm/i915/intel_connector.c
@@ -27,7 +27,6 @@
 #include <linux/i2c.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_edid.h>
-#include <drm/drmP.h>
 #include "intel_drv.h"
 #include "i915_drv.h"
 
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 0a41e58d61de..951e9bae6921 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -27,7 +27,6 @@
 #include <linux/dmi.h>
 #include <linux/i2c.h>
 #include <linux/slab.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 696e6f5680df..1cc441f06c73 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -31,7 +31,6 @@
 #include <linux/slab.h>
 #include <linux/vgaarb.h>
 #include <drm/drm_edid.h>
-#include <drm/drmP.h>
 #include "intel_drv.h"
 #include "intel_frontbuffer.h"
 #include <drm/i915_drm.h>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62fd11540942..d3cd40e656fe 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -32,7 +32,6 @@
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <asm/byteorder.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 4de247ddf05f..a8d43ad5352c 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -23,7 +23,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
 #include <drm/drm_atomic_helper.h>
diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
index d968f1f13e09..fc7a09049f81 100644
--- a/drivers/gpu/drm/i915/intel_dsi.h
+++ b/drivers/gpu/drm/i915/intel_dsi.h
@@ -24,7 +24,6 @@
 #ifndef _INTEL_DSI_H
 #define _INTEL_DSI_H
 
-#include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_mipi_dsi.h>
 #include "intel_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c
index 5b7e9118d97f..af7d3db1cc34 100644
--- a/drivers/gpu/drm/i915/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c
@@ -24,7 +24,6 @@
  *
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
 #include <drm/i915_drm.h>
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 0042a7f69387..bc3c3cb57ec6 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -26,7 +26,6 @@
  */
 #include <linux/i2c.h>
 #include <linux/slab.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include "intel_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index fb5bb5b32a60..a0c5046e170c 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -37,7 +37,6 @@
 #include <linux/init.h>
 #include <linux/vga_switcheroo.h>
 
-#include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fb_helper.h>
 #include "intel_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_frontbuffer.c b/drivers/gpu/drm/i915/intel_frontbuffer.c
index c3379bde266f..16f253deaf8d 100644
--- a/drivers/gpu/drm/i915/intel_frontbuffer.c
+++ b/drivers/gpu/drm/i915/intel_frontbuffer.c
@@ -60,7 +60,6 @@
  * functions is deprecated and should be avoided.
  */
 
-#include <drm/drmP.h>
 
 #include "intel_drv.h"
 #include "intel_frontbuffer.h"
diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index e000e54ad569..3fcb3b775948 100644
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -6,7 +6,6 @@
  * Sean Paul <seanpaul@chromium.org>
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_hdcp.h>
 #include <linux/i2c.h>
 #include <linux/random.h>
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 07e803a604bd..14a0c28fe7c1 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -30,7 +30,6 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/hdmi.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c
index e24174d08fed..ae92d6560165 100644
--- a/drivers/gpu/drm/i915/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/intel_hotplug.c
@@ -23,7 +23,6 @@
 
 #include <linux/kernel.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 802d0394ccc4..c6159aff9dc8 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -29,7 +29,6 @@
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 #include <linux/export.h>
-#include <drm/drmP.h>
 #include <drm/drm_hdcp.h>
 #include "intel_drv.h"
 #include <drm/i915_drm.h>
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index d81ae121c45e..24aaa184d7a7 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -133,7 +133,6 @@
  */
 #include <linux/interrupt.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_gem_render_state.h"
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index b85e195f7c8a..6adcc8d037bf 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -32,7 +32,6 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/vga_switcheroo.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
diff --git a/drivers/gpu/drm/i915/intel_mocs.h b/drivers/gpu/drm/i915/intel_mocs.h
index d89080d75b80..3d99d1271b2b 100644
--- a/drivers/gpu/drm/i915/intel_mocs.h
+++ b/drivers/gpu/drm/i915/intel_mocs.h
@@ -49,7 +49,6 @@
  * context handling keep the MOCS in step.
  */
 
-#include <drm/drmP.h>
 #include "i915_drv.h"
 
 int intel_rcs_context_init_mocs(struct i915_request *rq);
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index b8f106d9ecf8..30ae96c5c97c 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -30,7 +30,6 @@
 #include <linux/firmware.h>
 #include <acpi/video.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "intel_opregion.h"
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index c153be043078..c81db81e4416 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -25,7 +25,6 @@
  *
  * Derived from Xorg ddx, xf86-video-intel, src/i830_video.c
  */
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "i915_reg.h"
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index dce39f06b682..0f6b2b4702e3 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -51,7 +51,6 @@
  * must be correctly synchronized/cancelled when shutting down the pipe."
  */
 
-#include <drm/drmP.h>
 
 #include "intel_drv.h"
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 6e2661e86d18..26b7274a2d43 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -29,7 +29,6 @@
 
 #include <linux/log2.h>
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 5805ec1aba12..b08fed11219f 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -29,7 +29,6 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/export.h>
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index f70d2c607902..8f3982c03925 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -29,7 +29,6 @@
  * registers; newer ones are much simpler and we can use the new DRM plane
  * support.
  */
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fourcc.h>
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 860f306a23ba..d7a414ce2774 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -30,7 +30,6 @@
  * Integrated TV-out support for the 915GM and 945GM.
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>
diff --git a/drivers/gpu/drm/i915/intel_vdsc.c b/drivers/gpu/drm/i915/intel_vdsc.c
index c56ba0e04044..48537827616f 100644
--- a/drivers/gpu/drm/i915/intel_vdsc.c
+++ b/drivers/gpu/drm/i915/intel_vdsc.c
@@ -6,7 +6,6 @@
  *         Manasi Navare <manasi.d.navare@intel.com>
  */
 
-#include <drm/drmP.h>
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
diff --git a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
index 361e962a7969..bb1287020f80 100644
--- a/drivers/gpu/drm/i915/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/vlv_dsi.c
@@ -23,7 +23,6 @@
  * Author: Jani Nikula <jani.nikula@intel.com>
  */
 
-#include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_edid.h>

From 7b5618f4b834330a052958db934c3dffad4a15c2 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 7 Jan 2019 12:15:53 +0100
Subject: [PATCH 107/118] ACPI / PMIC: Add support for executing PMIC MIPI
 sequence elements

DSI LCD panels describe an initialization sequence in the Video BIOS
Tables using so called MIPI sequences. One possible element in these
sequences is a PMIC specific element of 15 bytes.

Although this is not really an ACPI opregion, the ACPI opregion code is the
closest thing we have. We need to have support for these PMIC specific MIPI
sequence elements somwhere. Since we already instantiate a special platform
device for Intel PMICs for the ACPI PMIC OpRegion handler to bind to,
with PMIC specific implementations of the OpRegion, the handling of MIPI
sequence PMIC elements fits very well in the ACPI PMIC OpRegion code.

This commit adds a new intel_soc_pmic_exec_mipi_pmic_seq_element()
function, which is to be backed by a PMIC specific
exec_mipi_pmic_seq_element callback. This function will be called by the
i915 code to execture MIPI sequence PMIC elements.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-2-hdegoede@redhat.com
---
 drivers/acpi/pmic/intel_pmic.c     | 52 ++++++++++++++++++++++++++++++
 drivers/acpi/pmic/intel_pmic.h     |  2 ++
 include/linux/mfd/intel_soc_pmic.h |  3 ++
 3 files changed, 57 insertions(+)

diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c
index ca18e0d23df9..471afeea87c2 100644
--- a/drivers/acpi/pmic/intel_pmic.c
+++ b/drivers/acpi/pmic/intel_pmic.c
@@ -15,6 +15,7 @@
 
 #include <linux/export.h>
 #include <linux/acpi.h>
+#include <linux/mfd/intel_soc_pmic.h>
 #include <linux/regmap.h>
 #include <acpi/acpi_lpat.h>
 #include "intel_pmic.h"
@@ -36,6 +37,8 @@ struct intel_pmic_opregion {
 	struct intel_pmic_regs_handler_ctx ctx;
 };
 
+static struct intel_pmic_opregion *intel_pmic_opregion;
+
 static int pmic_get_reg_bit(int address, struct pmic_table *table,
 			    int count, int *reg, int *bit)
 {
@@ -304,6 +307,7 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
 	}
 
 	opregion->data = d;
+	intel_pmic_opregion = opregion;
 	return 0;
 
 out_remove_thermal_handler:
@@ -319,3 +323,51 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
 	return ret;
 }
 EXPORT_SYMBOL_GPL(intel_pmic_install_opregion_handler);
+
+/**
+ * intel_soc_pmic_exec_mipi_pmic_seq_element - Execute PMIC MIPI sequence
+ * @i2c_address:  I2C client address for the PMIC
+ * @reg_address:  PMIC register address
+ * @value:        New value for the register bits to change
+ * @mask:         Mask indicating which register bits to change
+ *
+ * DSI LCD panels describe an initialization sequence in the i915 VBT (Video
+ * BIOS Tables) using so called MIPI sequences. One possible element in these
+ * sequences is a PMIC specific element of 15 bytes.
+ *
+ * This function executes these PMIC specific elements sending the embedded
+ * commands to the PMIC.
+ *
+ * Return 0 on success, < 0 on failure.
+ */
+int intel_soc_pmic_exec_mipi_pmic_seq_element(u16 i2c_address, u32 reg_address,
+					      u32 value, u32 mask)
+{
+	struct intel_pmic_opregion_data *d;
+	int ret;
+
+	if (!intel_pmic_opregion) {
+		pr_warn("%s: No PMIC registered\n", __func__);
+		return -ENXIO;
+	}
+
+	d = intel_pmic_opregion->data;
+
+	mutex_lock(&intel_pmic_opregion->lock);
+
+	if (d->exec_mipi_pmic_seq_element) {
+		ret = d->exec_mipi_pmic_seq_element(intel_pmic_opregion->regmap,
+						    i2c_address, reg_address,
+						    value, mask);
+	} else {
+		pr_warn("%s: Not implemented\n", __func__);
+		pr_warn("%s: i2c-addr: 0x%x reg-addr 0x%x value 0x%x mask 0x%x\n",
+			__func__, i2c_address, reg_address, value, mask);
+		ret = -EOPNOTSUPP;
+	}
+
+	mutex_unlock(&intel_pmic_opregion->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(intel_soc_pmic_exec_mipi_pmic_seq_element);
diff --git a/drivers/acpi/pmic/intel_pmic.h b/drivers/acpi/pmic/intel_pmic.h
index 095afc96952e..5cd195fabca8 100644
--- a/drivers/acpi/pmic/intel_pmic.h
+++ b/drivers/acpi/pmic/intel_pmic.h
@@ -15,6 +15,8 @@ struct intel_pmic_opregion_data {
 	int (*update_aux)(struct regmap *r, int reg, int raw_temp);
 	int (*get_policy)(struct regmap *r, int reg, int bit, u64 *value);
 	int (*update_policy)(struct regmap *r, int reg, int bit, int enable);
+	int (*exec_mipi_pmic_seq_element)(struct regmap *r, u16 i2c_address,
+					  u32 reg_address, u32 value, u32 mask);
 	struct pmic_table *power_table;
 	int power_table_count;
 	struct pmic_table *thermal_table;
diff --git a/include/linux/mfd/intel_soc_pmic.h b/include/linux/mfd/intel_soc_pmic.h
index ed1dfba5e5f9..bfecd6bd4990 100644
--- a/include/linux/mfd/intel_soc_pmic.h
+++ b/include/linux/mfd/intel_soc_pmic.h
@@ -26,4 +26,7 @@ struct intel_soc_pmic {
 	struct device *dev;
 };
 
+int intel_soc_pmic_exec_mipi_pmic_seq_element(u16 i2c_address, u32 reg_address,
+					      u32 value, u32 mask);
+
 #endif	/* __INTEL_SOC_PMIC_H__ */

From 4f6016825237740257847eccd2bf446dac72182a Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 7 Jan 2019 12:15:54 +0100
Subject: [PATCH 108/118] ACPI / PMIC: Implement exec_mipi_pmic_seq_element for
 CHT Whiskey Cove PMIC

Implement the exec_mipi_pmic_seq_element callback for the CHT Whiskey Cove
PMIC.

On some CHT devices this fixes the LCD panel not lighting up when it was
not initialized by the GOP, because an external monitor was plugged in and
the GOP initialized only the external monitor.

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-3-hdegoede@redhat.com
---
 drivers/acpi/pmic/intel_pmic_chtwc.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/acpi/pmic/intel_pmic_chtwc.c b/drivers/acpi/pmic/intel_pmic_chtwc.c
index 078b0448f30a..7ffd5624b8e1 100644
--- a/drivers/acpi/pmic/intel_pmic_chtwc.c
+++ b/drivers/acpi/pmic/intel_pmic_chtwc.c
@@ -231,6 +231,24 @@ static int intel_cht_wc_pmic_update_power(struct regmap *regmap, int reg,
 	return regmap_update_bits(regmap, reg, bitmask, on ? 1 : 0);
 }
 
+static int intel_cht_wc_exec_mipi_pmic_seq_element(struct regmap *regmap,
+						   u16 i2c_client_address,
+						   u32 reg_address,
+						   u32 value, u32 mask)
+{
+	u32 address;
+
+	if (i2c_client_address > 0xff || reg_address > 0xff) {
+		pr_warn("%s warning addresses too big client 0x%x reg 0x%x\n",
+			__func__, i2c_client_address, reg_address);
+		return -ERANGE;
+	}
+
+	address = (i2c_client_address << 8) | reg_address;
+
+	return regmap_update_bits(regmap, address, mask, value);
+}
+
 /*
  * The thermal table and ops are empty, we do not support the Thermal opregion
  * (DPTF) due to lacking documentation.
@@ -238,6 +256,7 @@ static int intel_cht_wc_pmic_update_power(struct regmap *regmap, int reg,
 static struct intel_pmic_opregion_data intel_cht_wc_pmic_opregion_data = {
 	.get_power		= intel_cht_wc_pmic_get_power,
 	.update_power		= intel_cht_wc_pmic_update_power,
+	.exec_mipi_pmic_seq_element = intel_cht_wc_exec_mipi_pmic_seq_element,
 	.power_table		= power_table,
 	.power_table_count	= ARRAY_SIZE(power_table),
 };

From 429188f0bc6aac7080095e07c70c77c6537cf57a Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 7 Jan 2019 12:15:55 +0100
Subject: [PATCH 109/118] ACPI / PMIC: Add generic
 intel_soc_pmic_exec_mipi_pmic_seq_element handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Most PMIC-s use only a single i2c-address, so after verifying the
i2c-address matches, we can simply pass the call to regmap_update_bits.

This commit adds support for this and hooks this up for the xpower AXP288
PMIC by setting the new pmic_i2c_address field.

This fixes the following errors on display on / off on a Jumper Ezpad
mini 3 and an Onda V80 plus tablet, both of which use the AXP288:

intel_soc_pmic_exec_mipi_pmic_seq_element: Not implemented
intel_soc_pmic_exec_mipi_pmic_seq_element: i2c-addr: 0x34 reg-addr ...
[drm:mipi_exec_pmic [i915]] *ERROR* mipi_exec_pmic failed, error: -95

Instead of these errors on both devices we now correctly turn on / off
DLDO3 (through direct register manipulation). On the Onda V80 plus this
fixes an issue with the backlight being brighter around the borders after
an off / on cycle. This should also help to save some power when the
display is off.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-4-hdegoede@redhat.com
---
 drivers/acpi/pmic/intel_pmic.c        | 9 +++++++++
 drivers/acpi/pmic/intel_pmic.h        | 2 ++
 drivers/acpi/pmic/intel_pmic_xpower.c | 1 +
 3 files changed, 12 insertions(+)

diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c
index 471afeea87c2..c14cfaea92e2 100644
--- a/drivers/acpi/pmic/intel_pmic.c
+++ b/drivers/acpi/pmic/intel_pmic.c
@@ -359,6 +359,15 @@ int intel_soc_pmic_exec_mipi_pmic_seq_element(u16 i2c_address, u32 reg_address,
 		ret = d->exec_mipi_pmic_seq_element(intel_pmic_opregion->regmap,
 						    i2c_address, reg_address,
 						    value, mask);
+	} else if (d->pmic_i2c_address) {
+		if (i2c_address == d->pmic_i2c_address) {
+			ret = regmap_update_bits(intel_pmic_opregion->regmap,
+						 reg_address, mask, value);
+		} else {
+			pr_err("%s: Unexpected i2c-addr: 0x%02x (reg-addr 0x%x value 0x%x mask 0x%x)\n",
+			       __func__, i2c_address, reg_address, value, mask);
+			ret = -ENXIO;
+		}
 	} else {
 		pr_warn("%s: Not implemented\n", __func__);
 		pr_warn("%s: i2c-addr: 0x%x reg-addr 0x%x value 0x%x mask 0x%x\n",
diff --git a/drivers/acpi/pmic/intel_pmic.h b/drivers/acpi/pmic/intel_pmic.h
index 5cd195fabca8..89379476a1df 100644
--- a/drivers/acpi/pmic/intel_pmic.h
+++ b/drivers/acpi/pmic/intel_pmic.h
@@ -21,6 +21,8 @@ struct intel_pmic_opregion_data {
 	int power_table_count;
 	struct pmic_table *thermal_table;
 	int thermal_table_count;
+	/* For generic exec_mipi_pmic_seq_element handling */
+	int pmic_i2c_address;
 };
 
 int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle, struct regmap *regmap, struct intel_pmic_opregion_data *d);
diff --git a/drivers/acpi/pmic/intel_pmic_xpower.c b/drivers/acpi/pmic/intel_pmic_xpower.c
index 2579675b7082..1b49cbb1e21e 100644
--- a/drivers/acpi/pmic/intel_pmic_xpower.c
+++ b/drivers/acpi/pmic/intel_pmic_xpower.c
@@ -240,6 +240,7 @@ static struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = {
 	.power_table_count = ARRAY_SIZE(power_table),
 	.thermal_table = thermal_table,
 	.thermal_table_count = ARRAY_SIZE(thermal_table),
+	.pmic_i2c_address = 0x34,
 };
 
 static acpi_status intel_xpower_pmic_gpio_handler(u32 function,

From 4e8052af858a6ea2cf656bdb6dbcf16dd87a39c1 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 7 Jan 2019 12:15:56 +0100
Subject: [PATCH 110/118] drm/i915/intel_dsi_vbt: Add support for PMIC MIPI
 sequences
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add support for PMIC MIPI sequences using the new
intel_soc_pmic_exec_mipi_pmic_seq_element function.

This fixes the DSI LCD panel not lighting up when not initialized by the
GOP (because an external monitor was connected) on GPD win and GPD pocket
devices.

Specifically the LCD panel seems to need GPIO pin 9 on the PMIC to be
driven high, which is done through a PMIC MIPI sequence. Before this commit
if the sequence was not executed by the GOP the pin would stay low causing
the LCD panel to not work. Having the MIPI sequences properly control this
GPIO should also help save some power when the panel is off.

Changes in v2, v3:
-Only changes to other patches in this patch-set

Changes in v4:
-Move decoding of the raw 15 bytes PMIC MIPI sequence element into
 i2c-address, register-address, value and mask into the mipi_exec_pmic()
 function instead of passing the raw data to
 intel_soc_pmic_exec_mipi_pmic_seq_element()

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-5-hdegoede@redhat.com
---
 drivers/gpu/drm/i915/intel_dsi_vbt.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c
index af7d3db1cc34..06a11c35a784 100644
--- a/drivers/gpu/drm/i915/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c
@@ -28,9 +28,11 @@
 #include <drm/drm_edid.h>
 #include <drm/i915_drm.h>
 #include <linux/gpio/consumer.h>
+#include <linux/mfd/intel_soc_pmic.h>
 #include <linux/slab.h>
 #include <video/mipi_display.h>
 #include <asm/intel-mid.h>
+#include <asm/unaligned.h>
 #include "i915_drv.h"
 #include "intel_drv.h"
 #include "intel_dsi.h"
@@ -391,7 +393,25 @@ static const u8 *mipi_exec_spi(struct intel_dsi *intel_dsi, const u8 *data)
 
 static const u8 *mipi_exec_pmic(struct intel_dsi *intel_dsi, const u8 *data)
 {
-	DRM_DEBUG_KMS("Skipping PMIC element execution\n");
+#ifdef CONFIG_PMIC_OPREGION
+	u32 value, mask, reg_address;
+	u16 i2c_address;
+	int ret;
+
+	/* byte 0 aka PMIC Flag is reserved */
+	i2c_address	= get_unaligned_le16(data + 1);
+	reg_address	= get_unaligned_le32(data + 3);
+	value		= get_unaligned_le32(data + 7);
+	mask		= get_unaligned_le32(data + 11);
+
+	ret = intel_soc_pmic_exec_mipi_pmic_seq_element(i2c_address,
+							reg_address,
+							value, mask);
+	if (ret)
+		DRM_ERROR("%s failed, error: %d\n", __func__, ret);
+#else
+	DRM_ERROR("Your hardware requires CONFIG_PMIC_OPREGION and it is not set\n");
+#endif
 
 	return data + 15;
 }

From d22ba0cb1ffeffa5bf37b7cfab7958706daffee4 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 9 Jan 2019 21:59:32 +0000
Subject: [PATCH 111/118] drm/i915: Reduce i915_request_alloc retirement to
 local context

In the continual quest to reduce the amount of global work required when
submitting requests, replace i915_retire_requests() after allocation
failure to retiring just our ring.

v2: Don't forget the list iteration included an early break, so we would
never throttle on the last request in the ring/timeline.
v3: Use the common ring_retire_requests()

References: 11abf0c5a021 ("drm/i915: Limit the backpressure for i915_request allocation")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109215932.26454-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_request.c | 55 +++++++++++++++++------------
 1 file changed, 33 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 346418c942a2..f3c3593362ec 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -477,6 +477,38 @@ submit_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
 	return NOTIFY_DONE;
 }
 
+static void ring_retire_requests(struct intel_ring *ring)
+{
+	struct i915_request *rq, *rn;
+
+	list_for_each_entry_safe(rq, rn, &ring->request_list, ring_link) {
+		if (!i915_request_completed(rq))
+			break;
+
+		i915_request_retire(rq);
+	}
+}
+
+static noinline struct i915_request *
+i915_request_alloc_slow(struct intel_context *ce)
+{
+	struct intel_ring *ring = ce->ring;
+	struct i915_request *rq;
+
+	if (list_empty(&ring->request_list))
+		goto out;
+
+	/* Ratelimit ourselves to prevent oom from malicious clients */
+	rq = list_last_entry(&ring->request_list, typeof(*rq), ring_link);
+	cond_synchronize_rcu(rq->rcustate);
+
+	/* Retire our old requests in the hope that we free some */
+	ring_retire_requests(ring);
+
+out:
+	return kmem_cache_alloc(ce->gem_context->i915->requests, GFP_KERNEL);
+}
+
 /**
  * i915_request_alloc - allocate a request structure
  *
@@ -559,15 +591,7 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
 	rq = kmem_cache_alloc(i915->requests,
 			      GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
 	if (unlikely(!rq)) {
-		i915_retire_requests(i915);
-
-		/* Ratelimit ourselves to prevent oom from malicious clients */
-		rq = i915_gem_active_raw(&ce->ring->timeline->last_request,
-					 &i915->drm.struct_mutex);
-		if (rq)
-			cond_synchronize_rcu(rq->rcustate);
-
-		rq = kmem_cache_alloc(i915->requests, GFP_KERNEL);
+		rq = i915_request_alloc_slow(ce);
 		if (!rq) {
 			ret = -ENOMEM;
 			goto err_unreserve;
@@ -1218,19 +1242,6 @@ long i915_request_wait(struct i915_request *rq,
 	return timeout;
 }
 
-static void ring_retire_requests(struct intel_ring *ring)
-{
-	struct i915_request *request, *next;
-
-	list_for_each_entry_safe(request, next,
-				 &ring->request_list, ring_link) {
-		if (!i915_request_completed(request))
-			break;
-
-		i915_request_retire(request);
-	}
-}
-
 void i915_retire_requests(struct drm_i915_private *i915)
 {
 	struct intel_ring *ring, *tmp;

From f663b0ca9b7d91d9f7428c1aa87b0ecbe5300aa0 Mon Sep 17 00:00:00 2001
From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Date: Wed, 9 Jan 2019 17:32:31 -0800
Subject: [PATCH 112/118] drm/i915/selftests: recreate WA lists inside the
 selftest

By using the wa lists inside the live driver structures, we won't
catch issues where those are incorrectly setup or corrupted.
To cover this gap, update the workaround framework to allow saving the
wa lists to independent structures and use them in the selftests.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190110013232.8972-1-daniele.ceraolospurio@intel.com
[tursulin: Fixup checkpatch whitespace complaint in memset.]
---
 drivers/gpu/drm/i915/intel_workarounds.c      | 117 +++++++++---------
 .../drm/i915/selftests/intel_workarounds.c    |  69 +++++++++--
 2 files changed, 119 insertions(+), 67 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 480c53a2ecb5..3210ad4e08f7 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -639,10 +639,9 @@ wa_write_or(struct i915_wa_list *wal, i915_reg_t reg, u32 val)
 	wa_write_masked_or(wal, reg, val, val);
 }
 
-static void gen9_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+gen9_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
 	/* WaDisableKillLogic:bxt,skl,kbl */
 	if (!IS_COFFEELAKE(i915))
 		wa_write_or(wal,
@@ -666,11 +665,10 @@ static void gen9_gt_workarounds_init(struct drm_i915_private *i915)
 		    BDW_DISABLE_HDC_INVALIDATION);
 }
 
-static void skl_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+skl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	gen9_gt_workarounds_init(i915);
+	gen9_gt_workarounds_init(i915, wal);
 
 	/* WaDisableGafsUnitClkGating:skl */
 	wa_write_or(wal,
@@ -684,11 +682,10 @@ static void skl_gt_workarounds_init(struct drm_i915_private *i915)
 			    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
 }
 
-static void bxt_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+bxt_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	gen9_gt_workarounds_init(i915);
+	gen9_gt_workarounds_init(i915, wal);
 
 	/* WaInPlaceDecompressionHang:bxt */
 	wa_write_or(wal,
@@ -696,11 +693,10 @@ static void bxt_gt_workarounds_init(struct drm_i915_private *i915)
 		    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
 }
 
-static void kbl_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+kbl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	gen9_gt_workarounds_init(i915);
+	gen9_gt_workarounds_init(i915, wal);
 
 	/* WaDisableDynamicCreditSharing:kbl */
 	if (IS_KBL_REVID(i915, 0, KBL_REVID_B0))
@@ -719,16 +715,16 @@ static void kbl_gt_workarounds_init(struct drm_i915_private *i915)
 		    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
 }
 
-static void glk_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+glk_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	gen9_gt_workarounds_init(i915);
+	gen9_gt_workarounds_init(i915, wal);
 }
 
-static void cfl_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+cfl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	gen9_gt_workarounds_init(i915);
+	gen9_gt_workarounds_init(i915, wal);
 
 	/* WaDisableGafsUnitClkGating:cfl */
 	wa_write_or(wal,
@@ -741,10 +737,10 @@ static void cfl_gt_workarounds_init(struct drm_i915_private *i915)
 		    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
 }
 
-static void wa_init_mcr(struct drm_i915_private *dev_priv)
+static void
+wa_init_mcr(struct drm_i915_private *dev_priv, struct i915_wa_list *wal)
 {
 	const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
-	struct i915_wa_list *wal = &dev_priv->gt_wa_list;
 	u32 mcr_slice_subslice_mask;
 
 	/*
@@ -804,11 +800,10 @@ static void wa_init_mcr(struct drm_i915_private *dev_priv)
 			   intel_calculate_mcr_s_ss_select(dev_priv));
 }
 
-static void cnl_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+cnl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	wa_init_mcr(i915);
+	wa_init_mcr(i915, wal);
 
 	/* WaDisableI2mCycleOnWRPort:cnl (pre-prod) */
 	if (IS_CNL_REVID(i915, CNL_REVID_B0, CNL_REVID_B0))
@@ -822,11 +817,10 @@ static void cnl_gt_workarounds_init(struct drm_i915_private *i915)
 		    GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
 }
 
-static void icl_gt_workarounds_init(struct drm_i915_private *i915)
+static void
+icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	wa_init_mcr(i915);
+	wa_init_mcr(i915, wal);
 
 	/* WaInPlaceDecompressionHang:icl */
 	wa_write_or(wal,
@@ -879,12 +873,9 @@ static void icl_gt_workarounds_init(struct drm_i915_private *i915)
 		    GAMT_CHKN_DISABLE_L3_COH_PIPE);
 }
 
-void intel_gt_init_workarounds(struct drm_i915_private *i915)
+static void
+gt_init_workarounds(struct drm_i915_private *i915, struct i915_wa_list *wal)
 {
-	struct i915_wa_list *wal = &i915->gt_wa_list;
-
-	wa_init_start(wal, "GT");
-
 	if (INTEL_GEN(i915) < 8)
 		return;
 	else if (IS_BROADWELL(i915))
@@ -892,22 +883,29 @@ void intel_gt_init_workarounds(struct drm_i915_private *i915)
 	else if (IS_CHERRYVIEW(i915))
 		return;
 	else if (IS_SKYLAKE(i915))
-		skl_gt_workarounds_init(i915);
+		skl_gt_workarounds_init(i915, wal);
 	else if (IS_BROXTON(i915))
-		bxt_gt_workarounds_init(i915);
+		bxt_gt_workarounds_init(i915, wal);
 	else if (IS_KABYLAKE(i915))
-		kbl_gt_workarounds_init(i915);
+		kbl_gt_workarounds_init(i915, wal);
 	else if (IS_GEMINILAKE(i915))
-		glk_gt_workarounds_init(i915);
+		glk_gt_workarounds_init(i915, wal);
 	else if (IS_COFFEELAKE(i915))
-		cfl_gt_workarounds_init(i915);
+		cfl_gt_workarounds_init(i915, wal);
 	else if (IS_CANNONLAKE(i915))
-		cnl_gt_workarounds_init(i915);
+		cnl_gt_workarounds_init(i915, wal);
 	else if (IS_ICELAKE(i915))
-		icl_gt_workarounds_init(i915);
+		icl_gt_workarounds_init(i915, wal);
 	else
 		MISSING_CASE(INTEL_GEN(i915));
+}
 
+void intel_gt_init_workarounds(struct drm_i915_private *i915)
+{
+	struct i915_wa_list *wal = &i915->gt_wa_list;
+
+	wa_init_start(wal, "GT");
+	gt_init_workarounds(i915, wal);
 	wa_init_finish(wal);
 }
 
@@ -1126,10 +1124,10 @@ void intel_engine_apply_whitelist(struct intel_engine_cs *engine)
 			   i915_mmio_reg_offset(RING_NOPID(base)));
 }
 
-static void rcs_engine_wa_init(struct intel_engine_cs *engine)
+static void
+rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 {
 	struct drm_i915_private *i915 = engine->i915;
-	struct i915_wa_list *wal = &engine->wa_list;
 
 	if (IS_ICELAKE(i915)) {
 		/* This is not an Wa. Enable for better image quality */
@@ -1233,10 +1231,10 @@ static void rcs_engine_wa_init(struct intel_engine_cs *engine)
 	}
 }
 
-static void xcs_engine_wa_init(struct intel_engine_cs *engine)
+static void
+xcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 {
 	struct drm_i915_private *i915 = engine->i915;
-	struct i915_wa_list *wal = &engine->wa_list;
 
 	/* WaKBLVECSSemaphoreWaitPoll:kbl */
 	if (IS_KBL_REVID(i915, KBL_REVID_A0, KBL_REVID_E0)) {
@@ -1246,6 +1244,18 @@ static void xcs_engine_wa_init(struct intel_engine_cs *engine)
 	}
 }
 
+static void
+engine_init_workarounds(struct intel_engine_cs *engine, struct i915_wa_list *wal)
+{
+	if (I915_SELFTEST_ONLY(INTEL_GEN(engine->i915) < 8))
+		return;
+
+	if (engine->id == RCS)
+		rcs_engine_wa_init(engine, wal);
+	else
+		xcs_engine_wa_init(engine, wal);
+}
+
 void intel_engine_init_workarounds(struct intel_engine_cs *engine)
 {
 	struct i915_wa_list *wal = &engine->wa_list;
@@ -1254,12 +1264,7 @@ void intel_engine_init_workarounds(struct intel_engine_cs *engine)
 		return;
 
 	wa_init_start(wal, engine->name);
-
-	if (engine->id == RCS)
-		rcs_engine_wa_init(engine);
-	else
-		xcs_engine_wa_init(engine);
-
+	engine_init_workarounds(engine, wal);
 	wa_init_finish(wal);
 }
 
@@ -1269,11 +1274,5 @@ void intel_engine_apply_workarounds(struct intel_engine_cs *engine)
 }
 
 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-static bool intel_engine_verify_workarounds(struct intel_engine_cs *engine,
-					    const char *from)
-{
-	return wa_list_verify(engine->i915, &engine->wa_list, from);
-}
-
 #include "selftests/intel_workarounds.c"
 #endif
diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
index c2b3cd8fcc34..8b3f3200a3bd 100644
--- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
@@ -12,6 +12,51 @@
 #include "igt_wedge_me.h"
 #include "mock_context.h"
 
+#define REF_NAME_MAX (INTEL_ENGINE_CS_MAX_NAME + 4)
+struct wa_lists {
+	struct i915_wa_list gt_wa_list;
+	struct {
+		char name[REF_NAME_MAX];
+		struct i915_wa_list wa_list;
+	} engine[I915_NUM_ENGINES];
+};
+
+static void
+reference_lists_init(struct drm_i915_private *i915, struct wa_lists *lists)
+{
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+
+	memset(lists, 0, sizeof(*lists));
+
+	wa_init_start(&lists->gt_wa_list, "GT_REF");
+	gt_init_workarounds(i915, &lists->gt_wa_list);
+	wa_init_finish(&lists->gt_wa_list);
+
+	for_each_engine(engine, i915, id) {
+		struct i915_wa_list *wal = &lists->engine[id].wa_list;
+		char *name = lists->engine[id].name;
+
+		snprintf(name, REF_NAME_MAX, "%s_REF", engine->name);
+
+		wa_init_start(wal, name);
+		engine_init_workarounds(engine, wal);
+		wa_init_finish(wal);
+	}
+}
+
+static void
+reference_lists_fini(struct drm_i915_private *i915, struct wa_lists *lists)
+{
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+
+	for_each_engine(engine, i915, id)
+		intel_wa_list_free(&lists->engine[id].wa_list);
+
+	intel_wa_list_free(&lists->gt_wa_list);
+}
+
 static struct drm_i915_gem_object *
 read_nonprivs(struct i915_gem_context *ctx, struct intel_engine_cs *engine)
 {
@@ -326,15 +371,17 @@ static int live_reset_whitelist(void *arg)
 	return err;
 }
 
-static bool verify_gt_engine_wa(struct drm_i915_private *i915, const char *str)
+static bool verify_gt_engine_wa(struct drm_i915_private *i915,
+				struct wa_lists *lists, const char *str)
 {
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 	bool ok = true;
 
-	ok &= intel_gt_verify_workarounds(i915, str);
+	ok &= wa_list_verify(i915, &lists->gt_wa_list, str);
+
 	for_each_engine(engine, i915, id)
-		ok &= intel_engine_verify_workarounds(engine, str);
+		ok &= wa_list_verify(i915, &lists->engine[id].wa_list, str);
 
 	return ok;
 }
@@ -344,6 +391,7 @@ live_gpu_reset_gt_engine_workarounds(void *arg)
 {
 	struct drm_i915_private *i915 = arg;
 	struct i915_gpu_error *error = &i915->gpu_error;
+	struct wa_lists lists;
 	bool ok;
 
 	if (!intel_has_gpu_reset(i915))
@@ -353,17 +401,19 @@ live_gpu_reset_gt_engine_workarounds(void *arg)
 
 	igt_global_reset_lock(i915);
 	intel_runtime_pm_get(i915);
+	reference_lists_init(i915, &lists);
 
-	ok = verify_gt_engine_wa(i915, "before reset");
+	ok = verify_gt_engine_wa(i915, &lists, "before reset");
 	if (!ok)
 		goto out;
 
 	set_bit(I915_RESET_HANDOFF, &error->flags);
 	i915_reset(i915, ALL_ENGINES, "live_workarounds");
 
-	ok = verify_gt_engine_wa(i915, "after reset");
+	ok = verify_gt_engine_wa(i915, &lists, "after reset");
 
 out:
+	reference_lists_fini(i915, &lists);
 	intel_runtime_pm_put(i915);
 	igt_global_reset_unlock(i915);
 
@@ -379,6 +429,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 	struct igt_spinner spin;
 	enum intel_engine_id id;
 	struct i915_request *rq;
+	struct wa_lists lists;
 	int ret = 0;
 
 	if (!intel_has_reset_engine(i915))
@@ -390,13 +441,14 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 
 	igt_global_reset_lock(i915);
 	intel_runtime_pm_get(i915);
+	reference_lists_init(i915, &lists);
 
 	for_each_engine(engine, i915, id) {
 		bool ok;
 
 		pr_info("Verifying after %s reset...\n", engine->name);
 
-		ok = verify_gt_engine_wa(i915, "before reset");
+		ok = verify_gt_engine_wa(i915, &lists, "before reset");
 		if (!ok) {
 			ret = -ESRCH;
 			goto err;
@@ -404,7 +456,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 
 		i915_reset_engine(engine, "live_workarounds");
 
-		ok = verify_gt_engine_wa(i915, "after idle reset");
+		ok = verify_gt_engine_wa(i915, &lists, "after idle reset");
 		if (!ok) {
 			ret = -ESRCH;
 			goto err;
@@ -435,7 +487,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 		igt_spinner_end(&spin);
 		igt_spinner_fini(&spin);
 
-		ok = verify_gt_engine_wa(i915, "after busy reset");
+		ok = verify_gt_engine_wa(i915, &lists, "after busy reset");
 		if (!ok) {
 			ret = -ESRCH;
 			goto err;
@@ -443,6 +495,7 @@ live_engine_reset_gt_engine_workarounds(void *arg)
 	}
 
 err:
+	reference_lists_fini(i915, &lists);
 	intel_runtime_pm_put(i915);
 	igt_global_reset_unlock(i915);
 	kernel_context_close(ctx);

From a60acb223fecc77531540196008ac2de89e2a162 Mon Sep 17 00:00:00 2001
From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Date: Wed, 9 Jan 2019 17:32:32 -0800
Subject: [PATCH 113/118] drm/i915: init per-engine WAs for all engines

commit 4a15c75c4246 ("drm/i915: Introduce per-engine workarounds")
refactored the workaround code to have functions per-engine, but didn't
call any of them from logical_xcs_ring_init. Since we do have a non-RCS
workaround for KBL (WaKBLVECSSemaphoreWaitPoll) we do need to call
intel_engine_init_workarounds for non-RCS engines.
Note that whitelist is still RCS-only.

v2: move the call to logical_ring_init (Chris)

Fixes: 4a15c75c4246 ("drm/i915: Introduce per-engine workarounds")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190110013232.8972-2-daniele.ceraolospurio@intel.com
---
 drivers/gpu/drm/i915/intel_lrc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 24aaa184d7a7..59115d3944c9 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2234,6 +2234,8 @@ static int logical_ring_init(struct intel_engine_cs *engine)
 	if (ret)
 		return ret;
 
+	intel_engine_init_workarounds(engine);
+
 	if (HAS_LOGICAL_RING_ELSQ(i915)) {
 		execlists->submit_reg = i915->regs +
 			i915_mmio_reg_offset(RING_EXECLIST_SQ_CONTENTS(engine));
@@ -2296,7 +2298,6 @@ int logical_render_ring_init(struct intel_engine_cs *engine)
 	}
 
 	intel_engine_init_whitelist(engine);
-	intel_engine_init_workarounds(engine);
 
 	return 0;
 }

From d78a600f703bd04e93009b00e81ffe5ad666729a Mon Sep 17 00:00:00 2001
From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Date: Wed, 9 Jan 2019 13:31:47 -0800
Subject: [PATCH 114/118] drm/i915: drop DPF code for gen8+

The only gen8+ platform that has the feature is BDW, but we don't define
the feature flag on any BDW platform and we only have partial support in
the gen8 path (irq enabling code, but no handler).
The only thing we could do in the irq handler is report the error
to userspace, but no one asked/cared about that since BDW was
released so it is relatively safe to assume that even if we added the
message no one would look at it. Just drop the dead code from the
driver instead.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109213147.16851-1-daniele.ceraolospurio@intel.com
---
 drivers/gpu/drm/i915/i915_irq.c  | 3 ---
 drivers/gpu/drm/i915/intel_lrc.c | 4 ----
 2 files changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3fcb3aad2e54..288b0662f7b7 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -4172,9 +4172,6 @@ static void gen8_gt_irq_postinstall(struct drm_i915_private *dev_priv)
 			GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT
 		};
 
-	if (HAS_L3_DPF(dev_priv))
-		gt_interrupts[0] |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
-
 	dev_priv->pm_ier = 0x0;
 	dev_priv->pm_imr = ~dev_priv->pm_ier;
 	GEN8_IRQ_INIT_NDX(GT, 0, ~gt_interrupts[0], gt_interrupts[0]);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 59115d3944c9..72ab89151ab9 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -2268,14 +2268,10 @@ static int logical_ring_init(struct intel_engine_cs *engine)
 
 int logical_render_ring_init(struct intel_engine_cs *engine)
 {
-	struct drm_i915_private *dev_priv = engine->i915;
 	int ret;
 
 	logical_ring_setup(engine);
 
-	if (HAS_L3_DPF(dev_priv))
-		engine->irq_keep_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
-
 	/* Override some for render ring. */
 	engine->init_context = gen8_init_rcs_context;
 	engine->emit_flush = gen8_emit_flush_render;

From 7f9e20ef0f4689d3a47068cd4c32b40982ad9941 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 10 Jan 2019 11:15:22 +0000
Subject: [PATCH 115/118] drm/i915: Guard error capture against unpinned vma

If we find an incompletely setup vma inside the request/engine at the
time of a hang, it may not have vma->pages initialised, so skip
capturing the object before we iterate over NULL.

Spotted by Matthew in preparation for using unpinned vma to track engine
state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190110111522.11023-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5533a741abeb..5eaf586c4d48 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1034,7 +1034,7 @@ i915_error_object_create(struct drm_i915_private *i915,
 	dma_addr_t dma;
 	int ret;
 
-	if (!vma)
+	if (!vma || !vma->pages)
 		return NULL;
 
 	num_pages = min_t(u64, vma->size, vma->obj->base.size) >> PAGE_SHIFT;

From 3824e41975ae55539de016dccc55e791d46a55bd Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 9 Jan 2019 16:42:03 +0000
Subject: [PATCH 116/118] drm/i915: Use mutex_lock_killable() from inside the
 shrinker

If the current process is being killed (it was interrupted with SIGKILL
or equivalent), it will not make any progress in page allocation and we
can abort performing the shrinking on its behalf. So we can use
mutex_lock_killable() instead (although this path should only be
reachable from kswapd currently).

Tvrtko pointed out that it should also be reachable from debugfs, which
he would prefer retain its interruptiblity. As a compromise, killable is a
step in the right direction!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109164204.23935-1-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_shrinker.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 34b108f73f1d..8ad9519779cc 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -39,18 +39,18 @@ static bool shrinker_lock(struct drm_i915_private *i915,
 			  unsigned int flags,
 			  bool *unlock)
 {
-	switch (mutex_trylock_recursive(&i915->drm.struct_mutex)) {
+	struct mutex *m = &i915->drm.struct_mutex;
+
+	switch (mutex_trylock_recursive(m)) {
 	case MUTEX_TRYLOCK_RECURSIVE:
 		*unlock = false;
 		return true;
 
 	case MUTEX_TRYLOCK_FAILED:
 		*unlock = false;
-		if (flags & I915_SHRINK_ACTIVE) {
-			mutex_lock_nested(&i915->drm.struct_mutex,
-					  I915_MM_SHRINKER);
+		if (flags & I915_SHRINK_ACTIVE &&
+		    mutex_lock_killable_nested(m, I915_MM_SHRINKER) == 0)
 			*unlock = true;
-		}
 		return *unlock;
 
 	case MUTEX_TRYLOCK_SUCCESS:

From 9fab8a2ea0d39343da077eeaa386ceeba10ca316 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 9 Jan 2019 16:42:04 +0000
Subject: [PATCH 117/118] drm/i915: Removing polling for struct_mutex from vmap
 shrinker

The wait-for-idle used from within the shrinker_lock_uninterruptible
depends on the struct_mutex locking state being known and declared to
i915_request_wait(). As it is conceivable that we reach the vmap
notifier from underneath struct_mutex (and so keep on relying on the
mutex_trylock_recursive), we should not blindly call i915_request_wait.

In the process we can remove the dubious polling to acquire
struct_mutex, and simply act, or not, on a successful trylock.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109164204.23935-2-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/i915_gem_shrinker.c | 35 +++---------------------
 1 file changed, 4 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 8ad9519779cc..6cc2b964c955 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -385,31 +385,6 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
 	return sc->nr_scanned ? freed : SHRINK_STOP;
 }
 
-static bool
-shrinker_lock_uninterruptible(struct drm_i915_private *i915, bool *unlock,
-			      int timeout_ms)
-{
-	unsigned long timeout = jiffies + msecs_to_jiffies_timeout(timeout_ms);
-
-	do {
-		if (i915_gem_wait_for_idle(i915,
-					   0, MAX_SCHEDULE_TIMEOUT) == 0 &&
-		    shrinker_lock(i915, 0, unlock))
-			break;
-
-		schedule_timeout_killable(1);
-		if (fatal_signal_pending(current))
-			return false;
-
-		if (time_after(jiffies, timeout)) {
-			pr_err("Unable to lock GPU to purge memory.\n");
-			return false;
-		}
-	} while (1);
-
-	return true;
-}
-
 static int
 i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
 {
@@ -461,16 +436,14 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
 	struct i915_vma *vma, *next;
 	unsigned long freed_pages = 0;
 	bool unlock;
-	int ret;
 
-	if (!shrinker_lock_uninterruptible(i915, &unlock, 5000))
+	if (!shrinker_lock(i915, 0, &unlock))
 		return NOTIFY_DONE;
 
 	/* Force everything onto the inactive lists */
-	ret = i915_gem_wait_for_idle(i915,
-				     I915_WAIT_LOCKED,
-				     MAX_SCHEDULE_TIMEOUT);
-	if (ret)
+	if (i915_gem_wait_for_idle(i915,
+				   I915_WAIT_LOCKED,
+				   MAX_SCHEDULE_TIMEOUT))
 		goto out;
 
 	intel_runtime_pm_get(i915);

From 74256b7ecf7790de78ea14facfc9dac02afcc76a Mon Sep 17 00:00:00 2001
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Thu, 10 Jan 2019 15:18:57 -0800
Subject: [PATCH 118/118] drm/i915: Update DRIVER_DATE to 20190110

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6f341822653c..5df26ccda8a4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -90,8 +90,8 @@
 
 #define DRIVER_NAME		"i915"
 #define DRIVER_DESC		"Intel Graphics"
-#define DRIVER_DATE		"20181221"
-#define DRIVER_TIMESTAMP	1545422678
+#define DRIVER_DATE		"20190110"
+#define DRIVER_TIMESTAMP	1547162337
 
 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
  * WARN_ON()) for hw state sanity checks to check for unexpected conditions