drm/i915/skl: Implement WaDisablePartialResolveInVc

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Nick Hoath <nicholas.hoath@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
git-mirror · Feb 13, 2015 · 9370cd9 · 9370cd9
1 parent 8d20549
commit 9370cd9
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diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
@@ -1483,6 +1483,7 @@ enum skl_disp_power_wells {
 #define CACHE_MODE_1		0x7004 /* IVB+ */
 #define   PIXEL_SUBSPAN_COLLECT_OPT_DISABLE	(1<<6)
 #define   GEN8_4x4_STC_OPTIMIZATION_DISABLE	(1<<6)
+#define   GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE	(1<<1)
 
 #define GEN6_BLITTER_ECOSKPD	0x221d0
 #define   GEN6_BLITTER_LOCK_SHIFT			16

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -981,6 +981,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
 	/* Wa4x4STCOptimizationDisable:skl */
 	WA_SET_BIT_MASKED(CACHE_MODE_1, GEN8_4x4_STC_OPTIMIZATION_DISABLE);
 
+	/* WaDisablePartialResolveInVc:skl */
+	WA_SET_BIT_MASKED(CACHE_MODE_1, GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE);
+
 	return 0;
 }