From cac23df48af531168625f5510912d227c7ce6b8b Mon Sep 17 00:00:00 2001 From: Nick Hoath Date: Thu, 5 Feb 2015 10:47:22 +0000 Subject: [PATCH] drm/i915/gen9: Implement WaEnableYV12BugFixInHalfSliceChicken7 Move WaEnableYV12BugFixInHalfSliceChicken7 to gen9_init_workarounds v2: Add stepping check. Signed-off-by: Nick Hoath Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 3 +++ drivers/gpu/drm/i915/intel_ringbuffer.c | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index dab4c1ebbc08..4ee1964d2c7b 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -6216,6 +6216,9 @@ enum skl_disp_power_wells { #define GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC (1<<5) #define GEN8_SAMPLER_POWER_BYPASS_DIS (1<<1) +#define GEN9_HALF_SLICE_CHICKEN7 0xe194 +#define GEN9_ENABLE_YV12_BUGFIX (1<<4) + /* Audio */ #define G4X_AUD_VID_DID (dev_priv->info.display_mmio_offset + 0x62020) #define INTEL_AUDIO_DEVCL 0x808629FB diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 909430ffa7fe..2ab447c711bc 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -896,6 +896,12 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) ~GEN9_DG_MIRROR_FIX_ENABLE); } + if (INTEL_REVID(dev) >= SKL_REVID_C0) { + /* WaEnableYV12BugFixInHalfSliceChicken7:skl */ + WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7, + GEN9_ENABLE_YV12_BUGFIX); + } + return 0; } -- 2.20.1