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drm/i915: Move device_info.has_snoop into the static tables 

Currently we define any !llc machine as using snoop instead. However,
some platforms run into trouble using snoop that we would like to
disable, and to do so easily we want to be able to use the static
device_info tables.

v2: Leave the old snoop = !llc as a warning for the time being to check
that all stanzas are filled as either llc or snoop.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170906105653.3665-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-09-06 11:56:53 +01:00
parent 90cad095ee
commit 5d95c24867
2 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/i915_pci.c
View File

@ -63,6 +63,7 @@
.hws_needs_physical = 1, \
.unfenced_needs_alignment = 1, \
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
CURSOR_OFFSETS
@ -95,6 +96,7 @@ static const struct intel_device_info intel_i865g_info __initconst = {
.gen = 3, .num_pipes = 2, \
.has_gmch_display = 1, \
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
CURSOR_OFFSETS
@ -157,6 +159,7 @@ static const struct intel_device_info intel_pineview_info __initconst = {
.has_hotplug = 1, \
.has_gmch_display = 1, \
.ring_mask = RENDER_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
CURSOR_OFFSETS
@ -197,6 +200,7 @@ static const struct intel_device_info intel_gm45_info __initconst = {
.has_hotplug = 1, \
.has_gmbus_irq = 1, \
.ring_mask = RENDER_RING | BSD_RING, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
CURSOR_OFFSETS
@ -320,6 +324,7 @@ static const struct intel_device_info intel_valleyview_info __initconst = {
.has_hotplug = 1,
.has_aliasing_ppgtt = 1,
.has_full_ppgtt = 1,
.has_snoop = true,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING,
.display_mmio_offset = VLV_DISPLAY_BASE,
GEN_DEFAULT_PIPEOFFSETS,
@ -411,6 +416,7 @@ static const struct intel_device_info intel_cherryview_info __initconst = {
.has_aliasing_ppgtt = 1,
.has_full_ppgtt = 1,
.has_reset_engine = 1,
.has_snoop = true,
.display_mmio_offset = VLV_DISPLAY_BASE,
GEN_CHV_PIPEOFFSETS,
CURSOR_OFFSETS,
@ -473,6 +479,7 @@ static const struct intel_device_info intel_skylake_gt4_info __initconst = {
.has_full_ppgtt = 1, \
.has_full_48bit_ppgtt = 1, \
.has_reset_engine = 1, \
.has_snoop = true, \
GEN_DEFAULT_PIPEOFFSETS, \
IVB_CURSOR_OFFSETS, \
BDW_COLORS

2
drivers/gpu/drm/i915/intel_device_info.c
View File

@ -412,7 +412,7 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
else if (INTEL_INFO(dev_priv)->gen >= 9)
gen9_sseu_info_init(dev_priv);
info->has_snoop = !info->has_llc;
WARN_ON(info->has_snoop != !info->has_llc);
DRM_DEBUG_DRIVER("slice mask: %04x\n", info->sseu.slice_mask);
DRM_DEBUG_DRIVER("slice total: %u\n", hweight8(info->sseu.slice_mask));