Hi Fei, > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c > @@ -743,6 +743,13 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc > *guc, u32 size) > if (IS_ERR(obj)) > return ERR_CAST(obj); > > + /* > + * Wa_22016122933: For MTL the shared memory needs to be mapped > + * as WC on CPU side and UC (PAT index 2) on GPU side
Isn't UC PAT index 3? Andi
