drm/i915/gen9: Implement WaEnableYV12BugFixInHalfSliceChicken7

Move WaEnableYV12BugFixInHalfSliceChicken7 to gen9_init_workarounds

v2: Add stepping check.

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>

1 files changed, 3 insertions, 0 deletions

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