Commit Graph

19776 Commits

Author SHA1 Message Date
Chris Wilson d1172ab3d4 drm/i915: Introduce struct class_instance for engines across the uAPI
SSEU reprogramming of the context introduced the notion of engine class
and instance for a forwards compatible method of describing any engine
beyond the old execbuf interface. We wish to adopt this class:instance
description for more interfaces, so pull it out into a separate type for
userspace convenience.

Fixes: e46c2e99f6 ("drm/i915: Expose RPCS (SSEU) configuration to userspace (Gen11 only)")
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>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Cc: Tony Ye <tony.ye@intel.com>
Cc: Andi Shyti <andi@etezian.org>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Tony Ye <tony.ye@intel.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412071416.30097-1-chris@chris-wilson.co.uk
2019-04-17 07:25:42 +01:00
Paulo Zanoni b16b2a2f70 drm/i915: fully convert the IRQ initialization macros to intel_uncore
Make them take the uncore argument from the caller instead of passing
the implicit &dev_priv->uncore directly. This will allow us to finally
pass something that's not dev_priv->uncore in the future, and gets rid
of the implicit variables in register macros.

v2: Rebase on top of the newer patches.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410235344.31199-6-paulo.r.zanoni@intel.com
2019-04-16 14:24:39 -07:00
Paulo Zanoni 65f42cdc6e drm/i915: convert the IRQ initialization functions to intel_uncore
The IRQ initialization helpers are simple and self-contained. Continue
the transition started in the recent uncore rework to get us rid of
I915_READ/WRITE and the implicit dev_priv variables.

While the implicit dev_priv is removed from the IRQ initialization
helpers, we didn't get rid of them in the macro callers. Doing that
should be very simple now.

v2: Rebase on top of the new patches.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410235344.31199-5-paulo.r.zanoni@intel.com
2019-04-16 14:23:47 -07:00
Paulo Zanoni 9d9523d8c1 drm/i915: add GEN2_ prefix to the I{E, I, M, S}R registers
This discussion started because we use token pasting in the
GEN{2,3}_IRQ_INIT and GEN{2,3}_IRQ_RESET macros, so gen2-4 passes an
empty argument to those macros, making the code a little weird. The
original proposal was to just add a comment as the empty argument, but
Ville suggested we just add a prefix to the registers, and that indeed
sounds like a more elegant solution.

Now doing this is kinda against our rules for register naming since we
only add gens or platform names as register prefixes when the given
gen/platform changes a register that already existed before. On the
other hand, we have so many instances of IIR/IMR in comments that
adding a prefix would make the users of these register more easily
findable, in addition to make our token pasting macros actually
readable. So IMHO opening an exception here is worth it.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410235344.31199-4-paulo.r.zanoni@intel.com
2019-04-16 14:18:58 -07:00
Paulo Zanoni 2918c3caef drm/i915: don't specify the IRQ register in the gen2 macros
Like the gen3+ macros, the gen2 versions of the IRQ initialization
macros take the register name in the 'type' argument. But gen2 only
has one set of registers, so there's really no need to specify the
type. This commit removes the type argument and uses the registers
directly instead of passing them through variables.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410235344.31199-3-paulo.r.zanoni@intel.com
2019-04-16 14:17:28 -07:00
Paulo Zanoni 68eb49b140 drm/i915: refactor the IRQ init/reset macros
The whole point of having macros here is for the token pasting
necessary to automatically have IMR, IIR and IER selected. We don't
really need or want all the inlining that happens as a consequence.
The good thing about the current code is that it works regardless of
the relative offsets between these registers (they change after gen4,
with the usual VLV/CHV exceptions).

One thing which we can do is to split the logic of what we do with
imr/ier/iir to functions separate from the macros that pick them.
That's what we do in this commit. This allows us to get rid of the
gen8 duplicates and also all the inlining:

add/remove: 2/0 grow/shrink: 0/21 up/down: 384/-5949 (-5565)
Function                                     old     new   delta
gen3_irq_reset                                 -     233    +233
gen3_irq_init                                  -     151    +151
i8xx_irq_postinstall                         459     442     -17
gen11_irq_postinstall                        804     744     -60
ironlake_irq_postinstall                     450     353     -97
vlv_display_irq_postinstall                  348     245    -103
i965_irq_postinstall                         378     272    -106
i915_irq_postinstall                         333     227    -106
gen8_irq_power_well_post_enable              374     240    -134
ironlake_irq_reset                           397     218    -179
vlv_display_irq_reset                        616     433    -183
i965_irq_reset                               374     180    -194
cherryview_irq_reset                         379     185    -194
i915_irq_reset                               407     209    -198
ibx_irq_reset                                332     133    -199
gen5_gt_irq_postinstall                      533     332    -201
gen8_irq_power_well_pre_disable              434     204    -230
gen8_gt_irq_postinstall                      469     196    -273
gen8_de_irq_postinstall                     1200     836    -364
gen5_gt_irq_reset                            471      76    -395
gen8_gt_irq_reset                            775      99    -676
gen8_irq_reset                              1100     333    -767
gen11_irq_reset                             1959     686   -1273
Total: Before=2259222, After=2253657, chg -0.25%

v2:
 - Make checkpatch happy with a temporary which_ (Checkpatch).
 - Reorder the arguments for the INIT macros (Ville).
 - Correctly explain when the register offsets change in the commit
   message (Ville).
 - Use more line breaks in the macro calls to make the arguments look
   a little more organized/readable.
 - Update the bloat-o-meter output (minor change only).

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410235344.31199-2-paulo.r.zanoni@intel.com
2019-04-16 14:15:48 -07:00
Joonas Lahtinen e4eabf27ca Merge tag 'gvt-next-2019-04-16' of https://github.com/intel/gvt-linux into drm-intel-next-queued
gvt-next-2019-04-16

- Refine range of MCHBAR snapshot (Yakui)
- Refine out-of-sync page struct (Yakui)
- Remove unused vGPU sreg (Yan)
- Refind MMIO reg names (Xiaolin)
- Proper handling of sync/async flip (Colin)
- Proper handling of PIPE_CONTROL/MI_FLUSH_DW index mode (Xiaolin)
- EXCC reg mask fix (Colin)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190416084814.GH17995@zhen-hp.sh.intel.com
2019-04-16 16:45:26 +03:00
Chris Wilson adc674cebb drm/i915: Mark up ips for RCU protection
drivers/gpu/drm/i915/intel_pm.c:8352:9: error: incompatible types in comparison expression (different address spaces)
drivers/gpu/drm/i915/intel_pm.c:8359:9: error: incompatible types in comparison expression (different address spaces)

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/20190412085410.10392-3-chris@chris-wilson.co.uk
2019-04-16 13:42:27 +01:00
Chris Wilson 7a2a519a89 drm/i915: Drop bool return from breadcrumbs signaler
Since removal of the "missed interrupt detection" nobody used the result
of whether or not we signaled anybody during that invocation, so now
remove the return value.

References: 789659f430 ("drm/i915: Drop fake breadcrumb irq")
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/20190416085218.431-1-chris@chris-wilson.co.uk
2019-04-16 11:06:00 +01:00
Colin Xu 2bfc497508 drm/i915/gvt: Fix incorrect mask of mmio 0x22028 in gen8/9 mmio list
According to GFX PRM on 01.org, bit 31:16 of mmio 0x22028 should be masks.

Fixes: 1786571393 ("drm/i915/gvt: vGPU context switch")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-16 16:52:51 +08:00
Xiaolin Zhang ac07157828 drm/i915/gvt: addressed guest GPU hang with HWS index mode
with the introduce of "switch to use HWS indices rather than address",
guest GPU hang observed when running workloads which will update the
seqno to the real HW HWSP, not vitural GPU HWSP and then cause GPU hang.

this patch is to revoke index mode in PIPE_CTRL and MI_FLUSH_DW and
patch guest GPU HWSP address value to these commands.

Fixes: 54939ea0bd ("drm/i915: Switch to use HWS indices rather than addresses")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-16 16:52:13 +08:00
Zhenyu Wang 95d002e0a3 Merge tag 'drm-intel-next-2019-04-04' into gvt-next
Merge back drm-intel-next for engine name definition refinement
and 54939ea0bd ("drm/i915: Switch to use HWS indices rather than addresses")
that would need gvt fixes to depend on.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-16 16:50:34 +08:00
Manasi Navare c856dbc887 drm/i915: Nuke drm_crtc_state and use intel_atomic_state instead
This is one of the patches to start replacing drm pointers
and use the intel_atomic_state and intel_crtc to derive
the necessary intel state variables required for the intel
modeset functions.

v3:
* Remove the unwanted newline (Ville)
v2:
* Flip the function arguments (Ville)
* Remove some remaining instances of drm pointers (Ville)
* Use old_crtc_state and new_crtc_state (Ville)

Suggested-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190415182210.13347-1-manasi.d.navare@intel.com
2019-04-15 12:54:24 -07:00
Ville Syrjälä f5c58ba18a drm/i915: Restore correct bxt_ddi_phy_calc_lane_lat_optim_mask() calculation
We are no longer calling bxt_ddi_phy_calc_lane_lat_optim_mask() when
intel{hdmi,dp}_compute_config() succeeds, and instead only call it
when those fail. This is fallout from the bool->int
.compute_config() conversion which failed to invert the return
value check before calling bxt_ddi_phy_calc_lane_lat_optim_mask().
Let's just replace it with an early bailout so that it's harder
to miss.

This restores the correct latency optim setting calculation
(which could fix some real failures), and avoids the
MISSING_CASE() from bxt_ddi_phy_calc_lane_lat_optim_mask()
after intel{hdmi,dp}_compute_config() has failed.

Cc: Lyude Paul <lyude@redhat.com>
Fixes: 204474a6b8 ("drm/i915: Pass down rc in intel_encoder->compute_config()")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109373
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411164925.28491-1-ville.syrjala@linux.intel.com
Reviewed-by: Lyude Paul <lyude@redhat.com>
(cherry picked from commit 7a412b8f60)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-15 09:36:42 -07:00
Ville Syrjälä 5aae7832d1 drm/i915: Do not enable FEC without DSC
Currently we enable FEC even when DSC is no used. While that is
theoretically valid supposedly there isn't much of a benefit from
this. But more importantly we do not account for the FEC link
bandwidth overhead (2.4%) in the non-DSC link bandwidth computations.
So the code may think we have enough bandwidth when we in fact
do not.

Cc: stable@vger.kernel.org
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Fixes: 240999cf33 ("i915/dp/fec: Add fec_enable to the crtc state.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326144903.6617-1-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
(cherry picked from commit 6fd3134ae3)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-15 09:36:38 -07:00
Chris Wilson 1ab494cc40 drm/i915/selftests: Skip live timeline/suspend tests if wedged
If the driver is wedged, we can not issue the requests to exercise the
timelines or the system across suspend, so skip the tests. live_hangcheck
is there to fail if we cannot recover.

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/20190413125820.14112-4-chris@chris-wilson.co.uk
2019-04-15 11:58:19 +01:00
Dave Airlie f06ddb5309 Linux 5.1-rc5
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BackMerge v5.1-rc5 into drm-next

Need rc5 for udl fix to add udl cleanups on top.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-04-15 15:51:49 +10:00
Thomas Gleixner fa49e2eac9 drm: Remove the ULONG_MAX stack trace hackery
No architecture terminates the stack trace with ULONG_MAX anymore. Remove
the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lkml.kernel.org/r/20190410103644.945059666@linutronix.de
2019-04-14 19:58:32 +02:00
Chris Wilson 5d75dc2b08 drm/i915: Teach intel_workarounds to use uncore mmio access
Start weaning ourselves off the implicit I915_WRITE macro madness and
start using the explicit intel_uncore mmio access.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412202458.10653-1-chris@chris-wilson.co.uk
2019-04-13 07:46:43 +01:00
Bob Paauwe 39564ae86d drm/i915/ehl: Inherit Ice Lake conditional code
Most of the conditional code for ICELAKE also applies to ELKHARTLAKE
so use IS_GEN(dev_priv, 11) even for PM and Workarounds for now.

v2: - Rename commit (Jose)
    - Include a wm workaround (Jose and Lucas)
    - Include display core init (Jose and Lucas)
v3: Add a missing case of gen greater-than 11 (Jose)

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412180920.22347-1-rodrigo.vivi@intel.com
2019-04-12 15:15:01 -07:00
Mika Kuoppala 5ce5f61b70 drm/i915: Handle catastrophic error on engine reset
If cat error is set, we need to clear it by acking it. Further,
if it is set, we must not do a normal request for reset.

v2: avoid goto (Chris)
v3: comment, error format, direct assign (Chris)
Bspec: 12567
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>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412165353.16432-1-mika.kuoppala@linux.intel.com
2019-04-12 19:23:45 +01:00
Mika Kuoppala 019d26004e drm/i915: Shortcut readiness to reset check
If the engine says it is ready for reset, it is ready
so avoid further dancing and proceed.

v2: reg (Chris)
v3: request, ack, mask from following patch (Chris)

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>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412165335.16347-1-mika.kuoppala@linux.intel.com
2019-04-12 19:20:27 +01:00
Ville Syrjälä e5604e2fb6 drm/i915: Suppress spurious combo PHY B warning
On ICL the DMC doesn't reinit combo PHY B so we should not warn
about its state being bogus during the display core uninit.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411143349.17934-1-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2019-04-12 16:35:50 +03:00
Ville Syrjälä 7a412b8f60 drm/i915: Restore correct bxt_ddi_phy_calc_lane_lat_optim_mask() calculation
We are no longer calling bxt_ddi_phy_calc_lane_lat_optim_mask() when
intel{hdmi,dp}_compute_config() succeeds, and instead only call it
when those fail. This is fallout from the bool->int
.compute_config() conversion which failed to invert the return
value check before calling bxt_ddi_phy_calc_lane_lat_optim_mask().
Let's just replace it with an early bailout so that it's harder
to miss.

This restores the correct latency optim setting calculation
(which could fix some real failures), and avoids the
MISSING_CASE() from bxt_ddi_phy_calc_lane_lat_optim_mask()
after intel{hdmi,dp}_compute_config() has failed.

Cc: Lyude Paul <lyude@redhat.com>
Fixes: 204474a6b8 ("drm/i915: Pass down rc in intel_encoder->compute_config()")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109373
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411164925.28491-1-ville.syrjala@linux.intel.com
Reviewed-by: Lyude Paul <lyude@redhat.com>
2019-04-12 16:35:50 +03:00
Chris Wilson 0edda1d681 drm/i915: Flush the CSB pointer reset
The HW resets it CSB tail pointer on resetting the engine. Most of the
time. In case it doesn't (and for system resume) we write the expected
value anyway. For extra paranoia, flush the write before we invalidate
the cacheline.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190412110159.10495-1-chris@chris-wilson.co.uk
2019-04-12 14:32:11 +01:00
Radhakrishna Sripada fa9d38f65d drm/i915: Fix the inconsistent RMW in WA 827
RMW is used only in the disable path. Using it in enable path
for consistency.

Suggested-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190330011921.10397-2-radhakrishna.sripada@intel.com
2019-04-12 10:22:11 +03:00
Radhakrishna Sripada 2474028e4b drm/i915: Rename skl_wa_clkgating to the actual WA
No functional change. Renaming the function to reflect the specific WA.

Suggested-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190330011921.10397-1-radhakrishna.sripada@intel.com
2019-04-12 10:22:11 +03:00
Ville Syrjälä 6fd3134ae3 drm/i915: Do not enable FEC without DSC
Currently we enable FEC even when DSC is no used. While that is
theoretically valid supposedly there isn't much of a benefit from
this. But more importantly we do not account for the FEC link
bandwidth overhead (2.4%) in the non-DSC link bandwidth computations.
So the code may think we have enough bandwidth when we in fact
do not.

Cc: stable@vger.kernel.org
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Fixes: 240999cf33 ("i915/dp/fec: Add fec_enable to the crtc state.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326144903.6617-1-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
2019-04-11 23:41:28 +03:00
Chris Wilson 2e1e5c5532 drm/i915: Avoid reclaim taints from runtime-pm debug
As intel_runtime_pm_get/_put may be called from any blockable context,
we need to avoid allowing reclaim from our mallocs, as we need to
avoid tainting any mutexes held by the callers (as they may themselves
not allow for allocations as they are taken in the shrinker).

<4> [435.339331] WARNING: possible circular locking dependency detected
<4> [435.339364] 5.1.0-rc4-CI-Trybot_4116+ #1 Tainted: G     U
<4> [435.339395] ------------------------------------------------------
<4> [435.339426] gem_caching/1334 is trying to acquire lock:
<4> [435.339456] 000000004505c39b (wakeref#3){+.+.}, at: intel_engine_pm_put+0x1b/0x40 [i915]
<4> [435.339788]
but task is already holding lock:
<4> [435.339819] 00000000ee77b4ed (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.24+0x0/0x30
<4> [435.339879]
which lock already depends on the new lock.

<4> [435.339918]
the existing dependency chain (in reverse order) is:
<4> [435.339952]
-> #1 (fs_reclaim){+.+.}:
<4> [435.339998]        fs_reclaim_acquire.part.24+0x24/0x30
<4> [435.340035]        kmem_cache_alloc_trace+0x2a/0x290
<4> [435.340311]        __print_intel_runtime_pm_wakeref+0x24/0x160 [i915]
<4> [435.340590]        untrack_intel_runtime_pm_wakeref+0x16e/0x1d0 [i915]
<4> [435.340869]        intel_runtime_pm_put_unchecked+0xd/0x30 [i915]
<4> [435.341147]        __intel_wakeref_put_once+0x22/0x40 [i915]
<4> [435.341508]        i915_request_retire+0x477/0xaf0 [i915]
<4> [435.341871]        ring_retire_requests+0x86/0x160 [i915]
<4> [435.342226]        i915_retire_requests+0x58/0xc0 [i915]
<4> [435.342576]        retire_work_handler+0x5b/0x70 [i915]
<4> [435.342615]        process_one_work+0x245/0x610
<4> [435.342646]        worker_thread+0x37/0x380
<4> [435.342679]        kthread+0x119/0x130
<4> [435.342714]        ret_from_fork+0x3a/0x50
<4> [435.342739]
-> #0 (wakeref#3){+.+.}:
<4> [435.342788]        lock_acquire+0xa6/0x1c0
<4> [435.342822]        __mutex_lock+0x8c/0x960
<4> [435.342853]        atomic_dec_and_mutex_lock+0x33/0x50
<4> [435.343151]        intel_engine_pm_put+0x1b/0x40 [i915]
<4> [435.343501]        i915_request_retire+0x477/0xaf0 [i915]
<4> [435.343851]        ring_retire_requests+0x86/0x160 [i915]
<4> [435.344202]        i915_retire_requests+0x58/0xc0 [i915]
<4> [435.344543]        i915_gem_shrink+0xd8/0x5b0 [i915]
<4> [435.344835]        i915_drop_caches_set+0x17b/0x250 [i915]
<4> [435.344877]        simple_attr_write+0xb0/0xd0
<4> [435.344911]        full_proxy_write+0x51/0x80
<4> [435.344943]        vfs_write+0xbd/0x1b0
<4> [435.344972]        ksys_write+0x55/0xe0
<4> [435.345002]        do_syscall_64+0x55/0x190
<4> [435.345040]        entry_SYSCALL_64_after_hwframe+0x49/0xbe

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/20190409174108.19396-1-chris@chris-wilson.co.uk
2019-04-11 20:48:52 +01:00
Chris Wilson 1863e3020a drm/i915/execlists: Always reset the context's RING registers
During reset, we try and stop the active ring. This has the consequence
that we often clobber the RING registers within the context image. When
we find an active request, we update the context image to rerun that
request (if it was guilty, we replace the hanging user payload with
NOPs). However, we were ignoring an active context if the request had
completed, with the consequence that the next submission on that request
would start with RING_HEAD==0 and not the tail of the previous request,
causing all requests still in the ring to be rerun. Rare, but
occasionally seen within CI where we would spot that the context seqno
would reverse and complain that we were retiring an incomplete request.

    <0> [412.390350]   <idle>-0       3d.s2 408373352us : __i915_request_submit: rcs0 fence 1e95b:3640 -> current 3638
    <0> [412.390350]   <idle>-0       3d.s2 408373353us : __i915_request_submit: rcs0 fence 1e95b:3642 -> current 3638
    <0> [412.390350]   <idle>-0       3d.s2 408373354us : __i915_request_submit: rcs0 fence 1e95b:3644 -> current 3638
    <0> [412.390350]   <idle>-0       3d.s2 408373354us : __i915_request_submit: rcs0 fence 1e95b:3646 -> current 3638
    <0> [412.390350]   <idle>-0       3d.s2 408373356us : __execlists_submission_tasklet: rcs0 in[0]:  ctx=2.1, fence 1e95b:3646 (current 3638), prio=4
    <0> [412.390350] i915_sel-4613    0.... 408373374us : __i915_request_commit: rcs0 fence 1e95b:3648
    <0> [412.390350] i915_sel-4613    0d..1 408373377us : process_csb: rcs0 cs-irq head=2, tail=3
    <0> [412.390350] i915_sel-4613    0d..1 408373377us : process_csb: rcs0 csb[3]: status=0x00000001:0x00000000, active=0x1
    <0> [412.390350] i915_sel-4613    0d..1 408373378us : __i915_request_submit: rcs0 fence 1e95b:3648 -> current 3638
    <0> [412.390350]   <idle>-0       3..s1 408373378us : execlists_submission_tasklet: rcs0 awake?=1, active=5
    <0> [412.390350] i915_sel-4613    0d..1 408373379us : __execlists_submission_tasklet: rcs0 in[0]:  ctx=2.2, fence 1e95b:3648 (current 3638), prio=4
    <0> [412.390350] i915_sel-4613    0.... 408373381us : i915_reset_engine: rcs0 flags=4
    <0> [412.390350] i915_sel-4613    0.... 408373382us : execlists_reset_prepare: rcs0: depth<-0
    <0> [412.390350]   <idle>-0       3d.s2 408373390us : process_csb: rcs0 cs-irq head=3, tail=4
    <0> [412.390350]   <idle>-0       3d.s2 408373390us : process_csb: rcs0 csb[4]: status=0x00008002:0x00000002, active=0x1
    <0> [412.390350]   <idle>-0       3d.s2 408373390us : process_csb: rcs0 out[0]: ctx=2.2, fence 1e95b:3648 (current 3640), prio=4
    <0> [412.390350] i915_sel-4613    0.... 408373401us : intel_engine_stop_cs: rcs0
    <0> [412.390350] i915_sel-4613    0d..1 408373402us : process_csb: rcs0 cs-irq head=4, tail=4
    <0> [412.390350] i915_sel-4613    0.... 408373403us : intel_gpu_reset: engine_mask=1
    <0> [412.390350] i915_sel-4613    0d..1 408373408us : execlists_cancel_port_requests: rcs0:port0 fence 1e95b:3648, (current 3648)
    <0> [412.390350] i915_sel-4613    0.... 408373442us : intel_engine_cancel_stop_cs: rcs0
    <0> [412.390350] i915_sel-4613    0.... 408373442us : execlists_reset_finish: rcs0: depth->0
    <0> [412.390350] ksoftirq-26      3..s. 408373442us : execlists_submission_tasklet: rcs0 awake?=1, active=0
    <0> [412.390350] ksoftirq-26      3d.s1 408373443us : process_csb: rcs0 cs-irq head=5, tail=5
    <0> [412.390350] i915_sel-4613    0.... 408373475us : i915_request_retire: rcs0 fence 1e95b:3640, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373476us : i915_request_retire: __retire_engine_request(rcs0) fence 1e95b:3640, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373494us : __i915_request_commit: rcs0 fence 1e95b:3650
    <0> [412.390350] i915_sel-4613    0d..1 408373496us : process_csb: rcs0 cs-irq head=5, tail=5
    <0> [412.390350] i915_sel-4613    0d..1 408373496us : __i915_request_submit: rcs0 fence 1e95b:3650 -> current 3648
    <0> [412.390350] i915_sel-4613    0d..1 408373498us : __execlists_submission_tasklet: rcs0 in[0]:  ctx=2.1, fence 1e95b:3650 (current 3648), prio=6
    <0> [412.390350] i915_sel-4613    0.... 408373500us : i915_request_retire_upto: rcs0 fence 1e95b:3648, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373500us : i915_request_retire: rcs0 fence 1e95b:3642, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373501us : i915_request_retire: __retire_engine_request(rcs0) fence 1e95b:3642, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373514us : i915_request_retire: rcs0 fence 1e95b:3644, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373515us : i915_request_retire: __retire_engine_request(rcs0) fence 1e95b:3644, current 3648
    <0> [412.390350] i915_sel-4613    0.... 408373527us : i915_request_retire: rcs0 fence 1e95b:3646, current 3640
    <0> [412.390350]   <idle>-0       3..s1 408373569us : execlists_submission_tasklet: rcs0 awake?=1, active=1
    <0> [412.390350]   <idle>-0       3d.s2 408373569us : process_csb: rcs0 cs-irq head=5, tail=1
    <0> [412.390350]   <idle>-0       3d.s2 408373570us : process_csb: rcs0 csb[0]: status=0x00000001:0x00000000, active=0x1
    <0> [412.390350]   <idle>-0       3d.s2 408373570us : process_csb: rcs0 csb[1]: status=0x00000018:0x00000002, active=0x5
    <0> [412.390350]   <idle>-0       3d.s2 408373570us : process_csb: rcs0 out[0]: ctx=2.1, fence 1e95b:3650 (current 3650), prio=6
    <0> [412.390350]   <idle>-0       3d.s2 408373571us : process_csb: rcs0 completed ctx=2
    <0> [412.390350] i915_sel-4613    0.... 408373621us : i915_request_retire: i915_request_retire:253 GEM_BUG_ON(!i915_request_completed(request))

v2: Fixup the cancellation path to drain the CSB and reset the pointers.

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/20190411130515.20716-2-chris@chris-wilson.co.uk
2019-04-11 20:48:52 +01:00
Chris Wilson 292ad25c22 drm/i915/guc: Implement reset locally
Before causing guc and execlists to diverge further (breaking guc in the
process), take a copy of the current reset procedure and make it local to
the guc submission backend

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/20190411130515.20716-1-chris@chris-wilson.co.uk
2019-04-11 20:48:51 +01:00
Mika Kuoppala 3936867dbc drm/i915: Disable read only ppgtt support for gen11
On gen11 writing to read only ppgtt page causes a gpu hang.
This behaviour is different than with previous gen where
read only ppgtt access is supported. On those, the write
is just dropped without visible side effects.

Disable ro ppgtt support on gen11 until a solution can
be found to bring it into line with its predecessors.

References: HSDES#1807136187
References: https://bugzilla.freedesktop.org/show_bug.cgi?id=108569
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-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/20190411083034.28311-1-mika.kuoppala@linux.intel.com
2019-04-11 20:48:51 +01:00
Chris Wilson 0c441cb6f3 drm/i915: Call i915_sw_fence_fini on request cleanup
As i915_requests are put into an RCU-freelist, they may get reused
before debugobjects notice them as being freed. On cleanup, explicitly
call i915_sw_fence_fini() so that the debugobject is properly tracked.

Reported-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Fixes: b7404c7ecb ("drm/i915: Bump ready tasks ahead of busywaits")
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>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411122445.20060-1-chris@chris-wilson.co.uk
2019-04-11 20:48:51 +01:00
Ville Syrjälä aefa95bacf drm/i915: Clean up DSC vs. not bpp handling
No point in duplicating all this code when we can just
use a variable to hold the output bpp (the only thing
that differs between the two branches).

Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.comk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326144903.6617-2-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
2019-04-11 21:22:40 +03:00
Ville Syrjälä 4e2056e05e drm/i915: Set DP min_bpp to 8*3 for non-RGB output formats
6bpc is only legal for RGB and RAW pixel encodings. For the rest
the minimum is 8bpc. Set our lower limit accordingly.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326142556.21176-6-ville.syrjala@linux.intel.com
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
2019-04-11 21:22:40 +03:00
Rodrigo Vivi 3f5f5d534b Merge tag 'gvt-fixes-2019-04-11' of https://github.com/intel/gvt-linux into drm-intel-fixes
gvt-fixes-2019-04-11

- Fix sparse warning on iomem usage (Chris)
- Prevent use-after-free for ppgtt shadow table free (Chris)
- Fix display plane size regression for tiled surface (Xiong)

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411064910.GF17995@zhen-hp.sh.intel.com
2019-04-11 09:18:14 -07:00
Noralf Trønnes 09ded8af57 drm/i915/fbdev: Move intel_fb_initial_config() to fbdev helper
It is generic code and having it in the helper will let other drivers
benefit from it.

One change was necessary assuming this to be true:
INTEL_INFO(dev_priv)->num_pipes == dev->mode_config.num_crtc

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190407165243.54043-4-noralf@tronnes.org
2019-04-11 16:15:28 +02:00
Mika Kuoppala 632c7ad6f4 drm/i915/icl: Switch to using 12 deep CSB status FIFO
Now when we can support variable csb fifo sizes, disable legacy mode.
By disabling legacy we hope to get better hw testing coverage by
assuming everyone else have switched over.

v2: rebase

References: https://bugs.freedesktop.org/show_bug.cgi?id=110338
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Kelvin Gardiner <kelvin.gardiner@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-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/20190405204657.12887-2-chris@chris-wilson.co.uk
2019-04-11 09:20:10 +01:00
Mika Kuoppala 7d4c75d909 drm/i915: Prepare for larger CSB status FIFO size
Make csb entry count variable in preparation for larger
CSB status FIFO size found on gen11+ hardware.

v2: adapt to hwsp access only (Chris)
    non continuous mmio (Daniele)
v3: entries (Chris), fix macro for checkpatch
v4: num_entries (Chris)
v5: consistency on num_entries

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.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/20190405204657.12887-1-chris@chris-wilson.co.uk
2019-04-11 09:20:04 +01:00
Mika Kuoppala 917dc6b53c drm/i915: Use Engine1 instance for gen11 pm interrupts
With gen11 the interrupt registers are shared between 2 engines,
with Engine1 instance being upper word and Engine0 instance being
lower. Annoyingly gen11 selected the pm interrupts to be in the
Engine1 instance.

Rectify the situation by shifting the access accordingly,
based on gen.

v2: comments, warn on overzealous rps_events

Bugzilla: https://bugzilla.freedesktop.org/show_bug.cgi?id=108059
Testcase: igt/i915_pm_rps@min-max-config-loaded
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-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/20190410105923.18546-6-mika.kuoppala@linux.intel.com
2019-04-11 08:40:35 +01:00
Mika Kuoppala 1071d0f687 drm/i915/icl: Disable video turbo mode for rp control
There is no video turbo mode for gen11, so don't set it.

v2: inline (Chris)
v3: brackets (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-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/20190410132436.23679-1-mika.kuoppala@linux.intel.com
2019-04-11 08:40:20 +01:00
Mika Kuoppala 2ea7414159 drm/i915/icl: Enable media sampler powergate
Enable media sampler powergate as recommended.

v2: use REG_BIT (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-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/20190410105923.18546-3-mika.kuoppala@linux.intel.com
2019-04-11 08:40:05 +01:00
Mika Kuoppala d105e9ad54 drm/i915/icl: Apply a recommended rc6 threshold
On gen11 the recommended rc6 threshold differs from previous
gens, apply it. Move the write to a correct spot in sequence.

v2: do write in 2b, fix bspec ref (Michal)

Bspec: 33149
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410105923.18546-2-mika.kuoppala@linux.intel.com
2019-04-11 08:39:51 +01:00
Mika Kuoppala a79208de65 drm/i915: Use dedicated rc6 enabling sequence for gen11
In order not to inflate gen9 rc6 enabling sequence with
gen11 specifics, use a separate function for it.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.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/20190410105923.18546-1-mika.kuoppala@linux.intel.com
2019-04-11 08:39:28 +01:00
Chris Wilson b7404c7ecb drm/i915: Bump ready tasks ahead of busywaits
Consider two tasks that are running in parallel on a pair of engines
(vcs0, vcs1), but then must complete on a shared engine (rcs0). To
maximise throughput, we want to run the first ready task on rcs0 (i.e.
the first task that completes on either of vcs0 or vcs1). When using
semaphores, however, we will instead queue onto rcs in submission order.

To resolve this incorrect ordering, we want to re-evaluate the priority
queue when each of the request is ready. Normally this happens because
we only insert into the priority queue requests that are ready, but with
semaphores we are inserting ahead of their readiness and to compensate
we penalize those tasks with reduced priority (so that tasks that do not
need to busywait should naturally be run first). However, given a series
of tasks that each use semaphores, the queue degrades into submission
fifo rather than readiness fifo, and so to counter this we give a small
boost to semaphore users as their dependent tasks are completed (and so
we no longer require any busywait prior to running the user task as they
are then ready themselves).

v2: Fixup irqsave for schedule_lock (Tvrtko)

Testcase: igt/gem_exec_schedule/semaphore-codependency
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Cc: Dmitry Ermilov <dmitry.ermilov@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190409152922.23894-1-chris@chris-wilson.co.uk
2019-04-11 07:14:27 +01:00
Xiong Zhang cd7879f79f drm/i915/gvt: Roundup fb->height into tile's height at calucation fb->size
When fb is tiled and fb->height isn't the multiple of tile's height,
the format fb->size = fb->stride * fb->height, will get a smaller size
than the actual size. As the memory height of tiled fb should be multiple
of tile's height.

Fixes: 7f1a93b1f1 ("drm/i915/gvt: Correct the calculation of plane size")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-11 11:09:53 +08:00
Chris Wilson 9726920b7e drm/i915: Only reset the pinned kernel contexts on resume
On resume, we know that the only pinned contexts in danger of seeing
corruption are the kernel context, and so we do not need to walk the
list of all GEM contexts as we tracked them on each engine.

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/20190410190120.830-1-chris@chris-wilson.co.uk
2019-04-10 21:18:11 +01:00
Manasi Navare feb8846b3a drm/i915/dp: Expose force_dsc_enable through debugfs
Currently we use force_dsc_enable to force DSC from IGT, but
we dont expose this value to userspace through debugfs.
This patch exposes this through the same dsc_fec_support
debugfs node per connector so that we can restore its value
back after the tests are completed.

Suggested-by: Imre Deak <imre.deak@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405224821.32435-1-manasi.d.navare@intel.com
2019-04-10 10:46:52 -07:00
Jani Nikula 21635d7311 drm/i915/dp: revert back to max link rate and lane count on eDP
Commit 7769db5883 ("drm/i915/dp: optimize eDP 1.4+ link config fast
and narrow") started to optize the eDP 1.4+ link config, both per spec
and as preparation for display stream compression support.

Sadly, we again face panels that flat out fail with parameters they
claim to support. Revert, and go back to the drawing board.

v2: Actually revert to max params instead of just wide-and-slow.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109959
Fixes: 7769db5883 ("drm/i915/dp: optimize eDP 1.4+ link config fast and narrow")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: "Lee, Shawn C" <shawn.c.lee@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.0+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Tested-by: Albert Astals Cid <aacid@kde.org> # v5.0 backport
Tested-by: Emanuele Panigati <ilpanich@gmail.com> # v5.0 backport
Tested-by: Matteo Iervasi <matteoiervasi@gmail.com> # v5.0 backport
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405075220.9815-1-jani.nikula@intel.com
(cherry picked from commit f11cb1c19a)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-10 09:06:39 -07:00
Vandita Kulkarni 4690985e00 drm/i915/icl: Fix port disable sequence for mipi-dsi
Re-enable clock gating of DDI clocks.

v2: Fix the default ddi clk state for mipi-dsi (Imre)

Fixes: 1026bea003 ("drm/i915/icl: Ungate DSI clocks")
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553513202-13863-2-git-send-email-vandita.kulkarni@intel.com
(cherry picked from commit 942d1cf48e)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-10 09:06:35 -07:00
Vandita Kulkarni 20eea462bf drm/i915/icl: Ungate ddi clocks before IO enable
IO enable sequencing needs ddi clocks enabled.
These clocks will be gated at a later point in
the enable sequence.

v2: Fix the commit header (Uma)
v3: Remove the redundant read (Ville)

Fixes: 949fc52af1 ("drm/i915/icl: add pll mapping for DSI")
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553513202-13863-1-git-send-email-vandita.kulkarni@intel.com
(cherry picked from commit c5b81a3252)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-10 09:06:29 -07:00
Mika Kuoppala 8455dad7ba drm/i915/icl: Don't warn on spurious interrupts
There is a chance we can see spurious interrupts in live
now. We have more engines enabled and that with more elaborate
access patterns with pm and display, increases the chances
hardware just makes a social call, without anything to work on.

Remove the error as we have tests to actually probe if
we really miss interrupt, instead of getting spurious ones.

Note that now we do write to intr_dw even with a zero
value. This is considered advantegous as the write
is an ack that sw is done.

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>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410132124.21795-2-mika.kuoppala@linux.intel.com
2019-04-10 16:23:19 +01:00
Mika Kuoppala a087bafeea drm/i915/icl: Handle rps interrupts without irq lock
Unlike previous gens, we already hold the irq_lock on
entering the rps handler so we can't use it as it is.

Make a gen11 specific rps interrupt handler without
locking.

v2: return early (Chris)

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>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190410132124.21795-1-mika.kuoppala@linux.intel.com
2019-04-10 16:23:18 +01:00
Jani Nikula f11cb1c19a drm/i915/dp: revert back to max link rate and lane count on eDP
Commit 7769db5883 ("drm/i915/dp: optimize eDP 1.4+ link config fast
and narrow") started to optize the eDP 1.4+ link config, both per spec
and as preparation for display stream compression support.

Sadly, we again face panels that flat out fail with parameters they
claim to support. Revert, and go back to the drawing board.

v2: Actually revert to max params instead of just wide-and-slow.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109959
Fixes: 7769db5883 ("drm/i915/dp: optimize eDP 1.4+ link config fast and narrow")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: "Lee, Shawn C" <shawn.c.lee@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.0+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Tested-by: Albert Astals Cid <aacid@kde.org> # v5.0 backport
Tested-by: Emanuele Panigati <ilpanich@gmail.com> # v5.0 backport
Tested-by: Matteo Iervasi <matteoiervasi@gmail.com> # v5.0 backport
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405075220.9815-1-jani.nikula@intel.com
2019-04-10 15:48:20 +03:00
Vandita Kulkarni 942d1cf48e drm/i915/icl: Fix port disable sequence for mipi-dsi
Re-enable clock gating of DDI clocks.

v2: Fix the default ddi clk state for mipi-dsi (Imre)

Fixes: 1026bea003 ("drm/i915/icl: Ungate DSI clocks")
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553513202-13863-2-git-send-email-vandita.kulkarni@intel.com
2019-04-10 15:39:45 +03:00
Vandita Kulkarni c5b81a3252 drm/i915/icl: Ungate ddi clocks before IO enable
IO enable sequencing needs ddi clocks enabled.
These clocks will be gated at a later point in
the enable sequence.

v2: Fix the commit header (Uma)
v3: Remove the redundant read (Ville)

Fixes: 949fc52af1 ("drm/i915/icl: add pll mapping for DSI")
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1553513202-13863-1-git-send-email-vandita.kulkarni@intel.com
2019-04-10 15:37:26 +03:00
Chris Wilson 174221e849 drm/i915/guc: Replace preempt_client lookup with engine->preempt_context
Circumvent the dance we currently perform to find the preempt_client and
lookup its HW context for this engine, as we know we have already pinned
the preempt_context on the engine.

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/20190408091728.20207-15-chris@chris-wilson.co.uk
2019-04-09 09:58:22 +01:00
Imre Deak bef42cb202 drm/i915: Get power refs in encoder->get_power_domains()
Push getting the reference for the encoders' power domains into the
encoder get_power_domains() hook instead of doing this from the caller.
This way the encoder can store away the corresponding wakerefs.

This fixes the DSI encoder disabling, which didn't release these
power references it acquired during HW state readout.

Note that longtime ownership for the corresponding wakerefs can be thus
acquired / released in two ways. Nevertheless there is always only one
owner for them:

After HW readout (booting/system resume):
- encoder->get_power_domains() acquires
- encoder->disable*() releases

After a modeset (calling intel_atomic_commit()):
- encoder->enable*() acquires
- encoder->disable*() releases

* can be any of the encoder enable/disable hooks.

v2:
- Check that the DSI io_wakerefs are unset both during encoder HW
  readout and enabling. (Chris)

Fixes: 0e6e0be4c9 ("drm/i915: Markup paired operations on display power domains")
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190407124655.31536-1-imre.deak@intel.com
(cherry picked from commit 3a52fb7e79)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-08 21:13:23 -07:00
Chris Wilson 6484775766 drm/i915/selftests: Mark live_forcewake_ops as unreliable
A couple of machines in the farm show quite frequent errors in the
powerwells not being released. Either there is an external agent
interferring with the powerwells, or the powerwell doesn't quite behave
as we anticipate -- either way, the test is not reliable enough to be
enabled by default in CI. It has served its immediate purpose in
providing coverage as we made tweaks to forcewake, so keep it available
for future testing.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110210
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190407192649.14750-1-chris@chris-wilson.co.uk
2019-04-08 19:15:05 +01:00
José Roberto de Souza 7ae6ad6fbd drm/i915/psr: Do not enable PSR in interlaced mode for all GENs
This interlaced mode restriction applies to all gens, not only to
Haswell.

Also while at it updating the debug message to.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: 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/20190406005112.27205-4-jose.souza@intel.com
2019-04-08 10:39:11 -07:00
José Roberto de Souza 98c0d19ec7 drm/i915/psr: Initialize PSR mutex even when sink is not reliable
Even when driver is reloaded and hits this scenario the PSR mutex
should be initialized, otherwise reading PSR debugfs status will
execute mutex_lock() over a mutex that was not initialized.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@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/20190406005112.27205-3-jose.souza@intel.com
2019-04-08 10:39:11 -07:00
José Roberto de Souza c0f6ffb2cd drm/i915: Remove unused VLV/CHV PSR registers
PSR support for VLV and CHV was dropped in commit ce3508fd2a
("drm/i915/psr: Nuke PSR support for VLV and CHV") so no need to keep
this registers around.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@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/20190406005112.27205-2-jose.souza@intel.com
2019-04-08 10:39:10 -07:00
José Roberto de Souza 15b7dae007 drm/i915/psr: Update PSR2 SU corruption workaround comment
Turn out it is not a DMC bug it is actually a HW one, so this
workaround will be needed for current gens, lets update the comment
and remove the FIXME.

BSpec: 7723
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@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/20190406005112.27205-1-jose.souza@intel.com
2019-04-08 10:39:09 -07:00
Chris Wilson de220cc219 drm/i915: Consolidate the timeline->barrier
The timeline is strictly ordered, so by inserting the timeline->barrier
request into the timeline->last_request it naturally provides the same
barrier. Consolidate the pair of barriers into one as they serve the
same purpose.

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/20190408091728.20207-4-chris@chris-wilson.co.uk
2019-04-08 17:04:12 +01:00
Chris Wilson da23379f15 drm/i915: Use static allocation for i915_globals_park()
In order to avoid the malloc inside i915_globals_park() occurring
underneath a lock connected to the shrinker (thus causing circular
lockdeps warnings), move the rcu_worker to a global.

<4> [39.085073] ======================================================
<4> [39.085273] WARNING: possible circular locking dependency detected
<4> [39.085552] 5.1.0-rc3-CI-Trybot_4088+ #1 Tainted: G     U
<4> [39.085752] ------------------------------------------------------
<4> [39.085949] kswapd0/32 is trying to acquire lock:
<4> [39.086121] 00000000004b5f91 (wakeref#3){+.+.}, at: intel_engine_pm_put+0x1b/0x40 [i915]
<4> [39.086493]
but task is already holding lock:
<4> [39.086682] 00000000dd009a9a (fs_reclaim){+.+.}, at: __fs_reclaim_acquire+0x0/0x30
<4> [39.086910]
which lock already depends on the new lock.

<4> [39.087139]
the existing dependency chain (in reverse order) is:
<4> [39.087356]
-> #2 (fs_reclaim){+.+.}:
<4> [39.087604]        fs_reclaim_acquire.part.24+0x24/0x30
<4> [39.087785]        kmem_cache_alloc_trace+0x2a/0x290
<4> [39.087998]        i915_globals_park+0x22/0xa0 [i915]
<4> [39.088478]        idle_work_handler+0x1df/0x220 [i915]
<4> [39.089016]        process_one_work+0x245/0x610
<4> [39.089447]        worker_thread+0x37/0x380
<4> [39.089956]        kthread+0x119/0x130
<4> [39.090374]        ret_from_fork+0x3a/0x50
<4> [39.090868]
-> #1 (wakeref#4){+.+.}:
<4> [39.091569]        __mutex_lock+0x8c/0x960
<4> [39.092054]        atomic_dec_and_mutex_lock+0x33/0x50
<4> [39.092521]        intel_gt_pm_put+0x1b/0x40 [i915]
<4> [39.093047]        intel_engine_park+0xeb/0x1d0 [i915]
<4> [39.093514]        __intel_wakeref_put_once+0x10/0x30 [i915]
<4> [39.094062]        i915_request_retire+0x477/0xaf0 [i915]
<4> [39.094547]        ring_retire_requests+0x86/0x160 [i915]
<4> [39.095110]        i915_retire_requests+0x58/0xc0 [i915]
<4> [39.095587]        i915_gem_wait_for_idle.part.22+0xb2/0xf0 [i915]
<4> [39.096142]        switch_to_kernel_context_sync+0x2a/0x70 [i915]
<4> [39.096633]        i915_gem_init+0x59c/0x9c0 [i915]
<4> [39.097174]        i915_driver_load+0xd96/0x1880 [i915]
<4> [39.097640]        i915_pci_probe+0x29/0xa0 [i915]
<4> [39.098145]        pci_device_probe+0xa1/0x120
<4> [39.098607]        really_probe+0xf3/0x3e0
<4> [39.099031]        driver_probe_device+0x10a/0x120
<4> [39.099599]        device_driver_attach+0x4b/0x50
<4> [39.100033]        __driver_attach+0x97/0x130
<4> [39.100525]        bus_for_each_dev+0x74/0xc0
<4> [39.100954]        bus_add_driver+0x13f/0x210
<4> [39.101441]        driver_register+0x56/0xe0
<4> [39.101891]        do_one_initcall+0x58/0x2e0
<4> [39.102319]        do_init_module+0x56/0x1ea
<4> [39.102805]        load_module+0x2701/0x29e0
<4> [39.103231]        __se_sys_finit_module+0xd3/0xf0
<4> [39.103727]        do_syscall_64+0x55/0x190
<4> [39.104153]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [39.104736]
-> #0 (wakeref#3){+.+.}:
<4> [39.105437]        lock_acquire+0xa6/0x1c0
<4> [39.105923]        __mutex_lock+0x8c/0x960
<4> [39.106345]        atomic_dec_and_mutex_lock+0x33/0x50
<4> [39.106897]        intel_engine_pm_put+0x1b/0x40 [i915]
<4> [39.107375]        i915_request_retire+0x477/0xaf0 [i915]
<4> [39.107930]        ring_retire_requests+0x86/0x160 [i915]
<4> [39.108412]        i915_retire_requests+0x58/0xc0 [i915]
<4> [39.108934]        i915_gem_shrink+0xd8/0x5b0 [i915]
<4> [39.109431]        i915_gem_shrinker_scan+0x59/0x130 [i915]
<4> [39.109884]        do_shrink_slab+0x131/0x3e0
<4> [39.110380]        shrink_slab+0x228/0x2c0
<4> [39.110810]        shrink_node+0x177/0x460
<4> [39.111317]        balance_pgdat+0x239/0x580
<4> [39.111743]        kswapd+0x186/0x570
<4> [39.112221]        kthread+0x119/0x130
<4> [39.112641]        ret_from_fork+0x3a/0x50

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/20190408091728.20207-3-chris@chris-wilson.co.uk
2019-04-08 17:04:01 +01:00
Chris Wilson bfd0453313 drm/i915/guc: Replace WARN with a DRM_ERROR
Replace the WARN with a simple if() + error message to squech the sparse
warning that entire wait_for() macro was being stringified:

drivers/gpu/drm/i915/intel_guc_submission.c:658:9: error: too long token expansion

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/20190408091728.20207-2-chris@chris-wilson.co.uk
2019-04-08 17:03:45 +01:00
Ville Syrjälä e1b7058ece drm/i915: Fix pipe_bpp readout for BXT/GLK DSI
The only bpc information in pipe registers for BXT/GLK DSI
is the PIPEMISC dither bpc. Let's try to use that to read
out pipe_bpp on these platforms. However, I'm not sure if
this will be correctly populated by the GOP since bspec
suggests it's only needed if dithering is actually enabled.
If not I guess we'll have to go one step further and
extract pipe_bpp from the DSI pixel format when dithering
is disabled.

Cc: Hans de Goede <hdegoede@redhat.com>
Fixes: ca0b04db14 ("drm/i915/dsi: Fix pipe_bpp for handling for 6 bpc pixel-formats")
References: https://bugs.freedesktop.org/show_bug.cgi?id=109516
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405141349.11950-1-ville.syrjala@linux.intel.com
(cherry picked from commit 499653501b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-04-08 08:36:28 -07:00
Imre Deak 99fa4bc26d drm/i915/icl: Simplify release of encoder power refs
We can unconditionally release the power references during encoder
disabling. The references for each port used by the encoder are
guaranteed to be enabled at this point.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405153657.20921-2-imre.deak@intel.com
2019-04-08 15:15:48 +03:00
Imre Deak 3a52fb7e79 drm/i915: Get power refs in encoder->get_power_domains()
Push getting the reference for the encoders' power domains into the
encoder get_power_domains() hook instead of doing this from the caller.
This way the encoder can store away the corresponding wakerefs.

This fixes the DSI encoder disabling, which didn't release these
power references it acquired during HW state readout.

Note that longtime ownership for the corresponding wakerefs can be thus
acquired / released in two ways. Nevertheless there is always only one
owner for them:

After HW readout (booting/system resume):
- encoder->get_power_domains() acquires
- encoder->disable*() releases

After a modeset (calling intel_atomic_commit()):
- encoder->enable*() acquires
- encoder->disable*() releases

* can be any of the encoder enable/disable hooks.

v2:
- Check that the DSI io_wakerefs are unset both during encoder HW
  readout and enabling. (Chris)

Fixes: 0e6e0be4c9 ("drm/i915: Markup paired operations on display power domains")
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190407124655.31536-1-imre.deak@intel.com
2019-04-08 15:15:08 +03:00
Will Deacon fb24ea52f7 drivers: Remove explicit invocations of mmiowb()
mmiowb() is now implied by spin_unlock() on architectures that require
it, so there is no reason to call it from driver code. This patch was
generated using coccinelle:

	@mmiowb@
	@@
	- mmiowb();

and invoked as:

$ for d in drivers include/linux/qed sound; do \
spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done

NOTE: mmiowb() has only ever guaranteed ordering in conjunction with
spin_unlock(). However, pairing each mmiowb() removal in this patch with
the corresponding call to spin_unlock() is not at all trivial, so there
is a small chance that this change may regress any drivers incorrectly
relying on mmiowb() to order MMIO writes between CPUs using lock-free
synchronisation. If you've ended up bisecting to this commit, you can
reintroduce the mmiowb() calls using wmb() instead, which should restore
the old behaviour on all architectures other than some esoteric ia64
systems.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-08 12:01:02 +01:00
Jani Nikula 93a643f29b drm/i915/cdclk: have only one init/uninit function
While transitioning to having better clarity between the modules, it's
desirable to have the function name prefixes reflect the
module. Functions in intel_foo.c should be prefixed intel_foo_.

Expose only one CDCLK init/uninit function from intel_cdclk.c instead of
one per platform. Obviously this adds one "unnecessary" if ladder within
the entry points. However it should be considered more of a CDCLK
implementation detail how this is done per platform, instead of exposing
the fact. In other words, abstract the CDCLK module better.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f63ed6e129098a32c63735be6cffa4756e7947af.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:40 +03:00
Jani Nikula e7674ef682 drm/i915: extract intel_cdclk.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c128d7be3f621391e571e86b03f302f3ffd0ed2b.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:35 +03:00
Jani Nikula f9a79f9aee drm/i915: extract intel_sprite.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/679c857a1933ee3d0706f978ab05ca880cd30a00.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:30 +03:00
Jani Nikula 75a4639a9f drm/i915: extract intel_dvo.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ccf9000ad33b895aea06be41053a5b7bac8459e.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:25 +03:00
Jani Nikula 42406fdc28 drm/i915: extract intel_lvds.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5d54d02cf7b7bfe3f78ed60d28534c5726371af3.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:21 +03:00
Jani Nikula efe57eeae5 drm/i915: extract intel_tv.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f44c21e3d154e47233ebef4267ce1a924fa38df7.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:16 +03:00
Jani Nikula c6a35b9cf9 drm/i915: extract intel_pipe_crc.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b106b21ef11ff7fc34537b2c029a1332c8573fcc.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:12 +03:00
Jani Nikula 56dabc9302 drm/i915: extract intel_atomic_plane.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: revert intel_plane_destroy_state() movement within intel_atomic_plane.c

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fd56c1cbba22b9f195ad944d79f7977423b2b533.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:07 +03:00
Jani Nikula 0550691d58 drm/i915: extract intel_hdmi.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/357856c31e309f0af8eed0d800623a5253ff3a37.1554461791.git.jani.nikula@intel.com
2019-04-08 09:53:01 +03:00
Jani Nikula 27fec1f973 drm/i915: extract intel_dp.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f86f9beed730eaad0bdcc18b18817b3d221e16e2.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:54 +03:00
Jani Nikula 6dfccb95cf drm/i915: extract intel_fbdev.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/82d11bf634094f44a7469a096de3d3768314d6bc.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:49 +03:00
Jani Nikula 696173b064 drm/i915: extract intel_pm.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: gen6_rps_reset_ei() is in i915_irq.c not intel_pm.c.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/adc6463b95eef3440fba9826793f7d1c5f3b0b4a.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:43 +03:00
Jani Nikula 44c1220a44 drm/i915: extract intel_panel.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c9f02ae09123866bc55269175ab75e844ffbd6ac.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:36 +03:00
Jani Nikula 408bd91786 drm/i915: extract intel_hdcp.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8348620b32cb4438ccfb5f7bbe9a18ff6b7c48a0.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:30 +03:00
Jani Nikula 596fee14fb drm/i915: extract intel_sdvo.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c507e15fef019541da5bb33f2fbe920a5ad2f3dc.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:26 +03:00
Jani Nikula f3e1894794 drm/i915: extract intel_lspcon.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b01cae3b5307d31c34de2321d6d2913f1cc39a12.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:21 +03:00
Jani Nikula 78c61320c5 drm/i915: extract intel_color.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fe5928586b4ca538cc4bc99212c5b699e891c75e.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:14 +03:00
Jani Nikula 55367a275a drm/i915: extract intel_psr.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: Fix checkpatch whitespace complaint

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7e776690bf139ccdd0306b30df08dc68e74603de.1554461791.git.jani.nikula@intel.com
2019-04-08 09:52:03 +03:00
Jani Nikula 98afa316d1 drm/i915: extract intel_fbc.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: Remove stray newline (Chris)

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/db44ba199c86f24bfa9e490531eddf51cccd89da.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:56 +03:00
Jani Nikula 174594db63 drm/i915: extract intel_csr.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: Add function argument names to fix checkpatch warning

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/44ceebca0206de9c40dc6794b660d84b8994f700.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:49 +03:00
Jani Nikula ec7f29ff0d drm/i915: extract intel_connector.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4b8e9d1fa8f0f0420ecc65063bdb7d068c13086e.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:41 +03:00
Jani Nikula fdc24cf308 drm/i915: extract intel_ddi.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/61d159117475a48a5db7bd7d652c198d4fa08d7b.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:36 +03:00
Jani Nikula d2ee2e8afe drm/i915: extract intel_crt.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/19c39bfcfb82f50c77382e8dea4fe1ad6cd043ed.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:29 +03:00
Jani Nikula 331c201a07 drm/i915: extract intel_audio.h from intel_drv.h
It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e0284c4d62effa5bad72ce034206c26e3aa02884.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:22 +03:00
Jani Nikula e1ef734eae drm/i915: make intel_frontbuffer.h self-contained
This will be helpful in the follow-up work. No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9a19d43987006e4249b335f3d843da43c998376c.1554461791.git.jani.nikula@intel.com
2019-04-08 09:51:18 +03:00
Ville Syrjälä 499653501b drm/i915: Fix pipe_bpp readout for BXT/GLK DSI
The only bpc information in pipe registers for BXT/GLK DSI
is the PIPEMISC dither bpc. Let's try to use that to read
out pipe_bpp on these platforms. However, I'm not sure if
this will be correctly populated by the GOP since bspec
suggests it's only needed if dithering is actually enabled.
If not I guess we'll have to go one step further and
extract pipe_bpp from the DSI pixel format when dithering
is disabled.

Cc: Hans de Goede <hdegoede@redhat.com>
Fixes: ca0b04db14 ("drm/i915/dsi: Fix pipe_bpp for handling for 6 bpc pixel-formats")
References: https://bugs.freedesktop.org/show_bug.cgi?id=109516
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190405141349.11950-1-ville.syrjala@linux.intel.com
2019-04-08 09:13:38 +03:00
Chris Wilson 968a85b19d drm/i915/gvt: Prevent use-after-free in ppgtt_free_all_spt()
ppgtt_free_all_spt() iterates the radixtree as it is deleting it,
forgoing all protection against the leaves being freed in the process
(leaving the iter pointing into the void).

A minimal fix seems to be to use the available post_shadow_list to
decompose the tree into a list prior to destroying the radixtree.

Alerted by the sparse warnings:

drivers/gpu/drm/i915/gvt/gtt.c:757:9: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    expected void **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    got void [noderef] <asn:4> **
drivers/gpu/drm/i915/gvt/gtt.c:757:9: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    expected void **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    got void [noderef] <asn:4> **
drivers/gpu/drm/i915/gvt/gtt.c:758:45: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/gvt/gtt.c:758:45:    expected void [noderef] <asn:4> **slot
drivers/gpu/drm/i915/gvt/gtt.c:758:45:    got void **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    expected void [noderef] <asn:4> **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    got void **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    expected void **slot
drivers/gpu/drm/i915/gvt/gtt.c:757:9:    got void [noderef] <asn:4> **

This would also have been loudly warning if run through CI for the
invalid RCU dereferences.

Fixes: b6c126a393 ("drm/i915/gvt: Manage shadow pages with radix tree")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-08 10:39:52 +08:00
Chris Wilson 196a662755 drm/i915/gvt: Annotate iomem usage
Fix the sparse warning for blithely using iomem with normal memcpy:

drivers/gpu/drm/i915/gvt/kvmgt.c:916:21: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/gvt/kvmgt.c:916:21:    expected void *aperture_va
drivers/gpu/drm/i915/gvt/kvmgt.c:916:21:    got void [noderef] <asn:2> *
drivers/gpu/drm/i915/gvt/kvmgt.c:927:26: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/gvt/kvmgt.c:927:26:    expected void [noderef] <asn:2> *vaddr
drivers/gpu/drm/i915/gvt/kvmgt.c:927:26:    got void *aperture_va

Fixes: d480b28a41 ("drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2019-04-08 10:39:26 +08:00
Chris Wilson 513a4c5589 drm/i915: Track the temporary wakerefs used for hsw_get_pipe_config
Haswell+ require many power wells to probe the current HW display state.
Under the wakeref tracking scheme, we want each owner to store and
release the wakeref they use, so we can identify callers that have
leaked their wakeref. For hsw_get_pipe_config, this means we have to
keep the array of all wakerefs as it current acquires its power wells
piecemeal and releases them en masse.

By tracking these wakerefs, we should be able to eliminate a lot of
noise from the runtime-pm debug logs.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190406080341.2654-1-chris@chris-wilson.co.uk
2019-04-07 14:38:52 +01:00
Janusz Krzysztofik 141f3767e7 drm/i915: Mark GEM wedged right after marking device unplugged
As soon as a device is considered unplugged, not only prevent pending
users from accessing the device structures but also cancel all their
pending requests so all consumed resources can be cleaned up as soon
as possible.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.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/20190406104034.31380-1-chris@chris-wilson.co.uk
2019-04-06 12:42:27 +01:00