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| author | Nick Hoath <nicholas.hoath@intel.com> | 2015-02-05 13:47:19 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-14 01:28:08 +0300 |
| commit | 1de4582f98db7eafd12695139aed7df6a0a0ff3a (patch) | |
| tree | 37583e5d8685dbc35c51989814b226555148e817 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | ab0dfafefd85b0abf61f0efad769803bee8e49fb (diff) | |
| download | linux-1de4582f98db7eafd12695139aed7df6a0a0ff3a.tar.xz | |
drm/i915/gen9: Implement WaDisableDgMirrorFixInHalfSliceChicken5
Move WaDisableDgMirrorFixInHalfSliceChicken5 to gen9_init_workarounds
v2: Added stepping check
v3: Removed unused register bitmap
Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
[danvet: Bikesheds.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index b869f1c68753..248db5157e02 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -882,6 +882,16 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN, PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE); + if (INTEL_REVID(dev) == SKL_REVID_A0) { + /* + * WaDisableDgMirrorFixInHalfSliceChicken5:skl + * This is a pre-production w/a. + */ + I915_WRITE(GEN9_HALF_SLICE_CHICKEN5, + I915_READ(GEN9_HALF_SLICE_CHICKEN5) & + ~GEN9_DG_MIRROR_FIX_ENABLE); + } + return 0; } |