drm/i915/gen9: h/w w/a: syncing dependencies between camera and graphics

This one doesn't have one of these nice cryptic names unfortunately. v2: Added missing register bitmap Signed-off-by: Nick Hoath <nicholas.hoath@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
mariux64 · Feb 13, 2015 · 8424171 · 8424171
1 parent 1de4582
commit 8424171
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 0 deletions.
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
@@ -6213,6 +6213,7 @@ enum skl_disp_power_wells {
 #define HALF_SLICE_CHICKEN3		0xe184
 #define   HSW_SAMPLE_C_PERFORMANCE	(1<<9)
 #define   GEN8_CENTROID_PIXEL_OPT_DIS	(1<<8)
+#define   GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC	(1<<5)
 #define   GEN8_SAMPLER_POWER_BYPASS_DIS	(1<<1)
 
 /* Audio */

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -882,6 +882,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
 	WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
 			  PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
 
+	/* Syncing dependencies between camera and graphics */
+	WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
+			  GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC);
+
 	if (INTEL_REVID(dev) == SKL_REVID_A0) {
 		/*
 		* WaDisableDgMirrorFixInHalfSliceChicken5:skl