[Intel-xe] [PATCH] drm/xe/xelpmp: Add Wa_16021867713

[Gustavo Sousa]

This workaround applies to all steppings of Xe_LPM+. Implement the KMD
part.

Signed-off-by: Gustavo Sousa <gustavo.sousa at intel.com>
---
 drivers/gpu/drm/xe/regs/xe_engine_regs.h | 3 +++
 drivers/gpu/drm/xe/xe_wa.c               | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_engine_regs.h b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
index 35dd4837dd75..b57dec17eb2d 100644
--- a/drivers/gpu/drm/xe/regs/xe_engine_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
@@ -118,4 +118,7 @@
 #define VDBOX_CGCTL3F18(base)			XE_REG((base) + 0x3f18)
 #define   ALNUNIT_CLKGATE_DIS			REG_BIT(13)
 
+#define VDBOX_CGCTL3F1C(base)			XE_REG((base) + 0x3f1c)
+#define   MFXPIPE_CLKGATE_DIS			REG_BIT(3)
+
 #endif
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 2f1782db267b..614e114a5342 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -248,6 +248,12 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 
 	/* Xe_LPM+ */
 
+	{ XE_RTP_NAME("16021867713"),
+	  XE_RTP_RULES(MEDIA_VERSION(1300),
+		       ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
 	{ XE_RTP_NAME("22016670082"),
 	  XE_RTP_RULES(MEDIA_VERSION(1300)),
 	  XE_RTP_ACTIONS(SET(XELPMP_SQCNT1, ENFORCE_RAR))
-- 
2.42.0