drm/i915/mtl: Add Wa_14015846243 to fix OA vs CS timestamp mismatch

Similar to ACM, OA timestamp that is part of the OA report is shifted when compared to the CS timestamp. Add MTL to the WA. Signed-off-by: Umesh Nerlige Ramappa <[email protected]> Reviewed-by: Ashutosh Dixit <[email protected]> Signed-off-by: John Harrison <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Kleist · Dec 17, 2022 · a6b4430 · a6b4430
1 parent a4b6e74
commit a6b4430
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
@@ -3139,8 +3139,11 @@ get_sseu_config(struct intel_sseu *out_sseu,
  */
 u32 i915_perf_oa_timestamp_frequency(struct drm_i915_private *i915)
 {
-	/* Wa_18013179988:dg2 */
-	if (IS_DG2(i915)) {
+	/*
+	 * Wa_18013179988:dg2
+	 * Wa_14015846243:mtl
+	 */
+	if (IS_DG2(i915) || IS_METEORLAKE(i915)) {
 		intel_wakeref_t wakeref;
 		u32 reg, shift;