From: Tim Gore <[email protected]> WaEnableSamplerGPGPUPreemptionSupport fixes a problem related to mid thread pre-emption.
Signed-off-by: Tim Gore <[email protected]> --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_ringbuffer.c | 7 ++++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 30fea34..de83914 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7142,6 +7142,7 @@ enum skl_disp_power_wells { #define GEN9_HALF_SLICE_CHICKEN7 _MMIO(0xe194) #define GEN9_ENABLE_YV12_BUGFIX (1<<4) +#define GEN9_ENABLE_GPGPU_PREEMPTION (1<<2) /* Audio */ #define G4X_AUD_VID_DID _MMIO(dev_priv->info.display_mmio_offset + 0x62020) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 2e864b7..0b4f582 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -959,9 +959,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine) } /* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt */ - if (IS_SKL_REVID(dev, SKL_REVID_C0, REVID_FOREVER) || IS_BROXTON(dev)) - WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7, - GEN9_ENABLE_YV12_BUGFIX); + /* WaEnableSamplerGPGPUPreemptionSupport:skl,bxt */ + WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7, + GEN9_ENABLE_YV12_BUGFIX | + GEN9_ENABLE_GPGPU_PREEMPTION); /* Wa4x4STCOptimizationDisable:skl,bxt */ /* WaDisablePartialResolveInVc:skl,bxt */ -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
