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| author | Ben Widawsky <ben@bwidawsk.net> | 2013-11-02 21:07:57 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-11-08 18:10:05 +0100 |
| commit | bf66347cd3a3e947d4eff5bafa6c72283c2411ed (patch) | |
| tree | b7d66c3d40f0bd1220ae3139478b4f0ae0cf3183 | |
| parent | fd392b6003ae79c8abfb077be76e0a4b4cea8e3e (diff) | |
| download | blackbird-op-linux-bf66347cd3a3e947d4eff5bafa6c72283c2411ed.tar.gz blackbird-op-linux-bf66347cd3a3e947d4eff5bafa6c72283c2411ed.zip | |
drm/i915/bdw: Sampler power bypass disable
BDW-A workaround.
BDW Bug #1899812
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index ffd103a5d472..1d557291fb28 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5009,6 +5009,7 @@ #define HALF_SLICE_CHICKEN3 0xe184 #define GEN8_CENTROID_PIXEL_OPT_DIS (1<<8) +#define GEN8_SAMPLER_POWER_BYPASS_DIS (1<<1) #define G4X_AUD_VID_DID (dev_priv->info->display_mmio_offset + 0x62020) #define INTEL_AUDIO_DEVCL 0x808629FB diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index e036ba06be99..7e0039e8c2d4 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5290,6 +5290,8 @@ static void gen8_init_clock_gating(struct drm_device *dev) "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(HALF_SLICE_CHICKEN3, + _MASKED_BIT_ENABLE(GEN8_SAMPLER_POWER_BYPASS_DIS)); I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_BWGTLB_DISABLE)); /* WaSwitchSolVfFArbitrationPriority */ |
