This basically reverts commit 465418c6064c
("drm/i915/gen9: Remove WaEnableYV12BugFixInHalfSliceChicken7")
with small addition - marking it as affecting KBL as well.
It was incorrectly considered fixed in production steppings.
References: HSD#2126385, HSD#2131381, HSDES#1504433555, BSID#0764
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Cc: Jeff McGee <jeff.mcgee@xxxxxxxxx>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 483ed76..49c2315 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -851,8 +851,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
*/
}
+ /* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt,kbl,glk */
/* WaEnableSamplerGPGPUPreemptionSupport:skl,bxt,kbl */
WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
+ GEN9_ENABLE_YV12_BUGFIX |
GEN9_ENABLE_GPGPU_PREEMPTION);
/* Wa4x4STCOptimizationDisable:skl,bxt,kbl,glk */
--
2.9.3
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