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| author | Daniel Vetter | 2012-04-11 20:42:42 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2012-04-17 11:20:06 +0200 |
| commit | 009be664ecc77d58d3c27fb22347b969745a329a (patch) | |
| tree | e1f16b8b8aaae6f96dca8c89663ef68a184bf34a /drivers/gpu/drm/i915 | |
| parent | drm/i915: implement w/a for incorrect guarband clipping (diff) | |
| download | kernel-qcow2-linux-009be664ecc77d58d3c27fb22347b969745a329a.tar.gz kernel-qcow2-linux-009be664ecc77d58d3c27fb22347b969745a329a.tar.xz kernel-qcow2-linux-009be664ecc77d58d3c27fb22347b969745a329a.zip | |
drm/i915: set stc evict disable lra evict w/a
Our workaround list kindly lists that this new default value needs to
be updated in Bspec. Naturally, this did not happen.
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6d9205436121..02124a51edad 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -639,6 +639,7 @@ #define CM0_MASK_SHIFT 16 #define CM0_IZ_OPT_DISABLE (1<<6) #define CM0_ZR_OPT_DISABLE (1<<5) +#define CM0_STC_EVICT_DISABLE_LRA_SNB (1<<5) #define CM0_DEPTH_EVICT_DISABLE (1<<4) #define CM0_COLOR_EVICT_DISABLE (1<<3) #define CM0_DEPTH_WRITE_DISABLE (1<<1) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1a6bb6101491..7506a72ee882 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8878,6 +8878,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) I915_WRITE(WM2_LP_ILK, 0); I915_WRITE(WM1_LP_ILK, 0); + /* clear masked bit */ + I915_WRITE(CACHE_MODE_0, + CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT); + I915_WRITE(GEN6_UCGCTL1, I915_READ(GEN6_UCGCTL1) | GEN6_BLBUNIT_CLOCK_GATE_DISABLE | |