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drm/i915/bdw: Add WaHdcDisableFetchWhenMasked

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We already have it for chv, but was missing for bdw.

Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Michel Thierry 2014-12-04 15:07:52 +00:00 committed by Daniel Vetter
parent 24ee0e6490
commit f3f32360b6
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_ringbuffer.c
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@ -766,9 +766,11 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
* workaround for for a possible hang in the unlikely event a TLB
* invalidation occurs during a PSD flush.
*/
/* WaHdcDisableFetchWhenMasked:bdw */
/* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
WA_SET_BIT_MASKED(HDC_CHICKEN0,
HDC_FORCE_NON_COHERENT |
HDC_DONOT_FETCH_MEM_WHEN_MASKED |
(IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
/* Wa4x4STCOptimizationDisable:bdw */