On 4/13/2022 12:27, Umesh Nerlige Ramappa wrote:
From: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>
Enable GuC Wa to reset RCS/CCS before it goes into RC6.
v2: Comments from Matt R.
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@xxxxxxxxx>
Reviewed-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc.c | 5 +++++
drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index fd04c4cd9d44..830889349756 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -310,6 +310,11 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc)
if (GRAPHICS_VER(gt->i915) == 12)
flags |= GUC_WA_PRE_PARSER;
+ /* Wa_16011777198:dg2 */
+ if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
+ IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))
+ flags |= GUC_WA_RCS_RESET_BEFORE_RC6;
+
return flags;
}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
index fe5751f67b19..126e67ea1619 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
@@ -100,6 +100,7 @@
#define GUC_CTL_WA 1
#define GUC_WA_GAM_CREDITS BIT(10)
#define GUC_WA_DUAL_QUEUE BIT(11)
+#define GUC_WA_RCS_RESET_BEFORE_RC6 BIT(13)
#define GUC_WA_PRE_PARSER BIT(14)
#define GUC_WA_POLLCS BIT(18)
