diff options
| author | Ben Widawsky <ben@bwidawsk.net> | 2013-11-04 22:52:39 -0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-08 18:10:04 +0100 |
| commit | fd392b6003ae79c8abfb077be76e0a4b4cea8e3e (patch) | |
| tree | 5c36ea2dc70fc413e5bc84f249b134de61214c11 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 4afe8d3347d69af7bc606fafad134885ed1544e2 (diff) | |
ddrm/i915/bdw: Disable centroid pixel perf optimization
BDW-A workaround
BDW Bug #1899532
v2: WARN on when not using preliminary HW support
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuosugeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 8249be5f83f..e036ba06be9 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5286,6 +5286,10 @@ static void gen8_init_clock_gating(struct drm_device *dev) /* FIXME(BDW): Check all the w/a, some might only apply to * pre-production hw. */ + WARN(!i915_preliminary_hw_support, + "GEN8_CENTROID_PIXEL_OPT_DIS not be needed for production\n"); + I915_WRITE(HALF_SLICE_CHICKEN3, + _MASKED_BIT_ENABLE(GEN8_CENTROID_PIXEL_OPT_DIS)); I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_BWGTLB_DISABLE)); /* WaSwitchSolVfFArbitrationPriority */ |