drm/xe/xe2hpm: Add initial set of workarounds

Define the initial set of workarounds for Xe2_HPM.
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408170545.3769566-12-balasubramani.vivekanandan@intel.com

drivers/gpu/drm/xe/regs/xe_gt_regs.h

@@ -280,6 +280,10 @@
 #define FORCEWAKE_GT				XE_REG(0xa188)
 
 #define PG_ENABLE				XE_REG(0xa210)
+#define   VD2_MFXVDENC_POWERGATE_ENABLE		REG_BIT(8)
+#define   VD2_HCP_POWERGATE_ENABLE		REG_BIT(7)
+#define   VD0_MFXVDENC_POWERGATE_ENABLE		REG_BIT(4)
+#define   VD0_HCP_POWERGATE_ENABLE		REG_BIT(3)
 
 #define CTC_MODE				XE_REG(0xa26c)
 #define   CTC_SHIFT_PARAMETER_MASK		REG_GENMASK(2, 1)

drivers/gpu/drm/xe/xe_wa.c

@@ -228,6 +228,28 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
 	},
 
+	/* Xe2_HPM */
+
+	{ XE_RTP_NAME("16021867713"),
+	  XE_RTP_RULES(MEDIA_VERSION(1301),
+		       ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
+	{ XE_RTP_NAME("14020316580"),
+	  XE_RTP_RULES(MEDIA_VERSION(1301)),
+	  XE_RTP_ACTIONS(CLR(PG_ENABLE,
+			     VD0_HCP_POWERGATE_ENABLE |
+			     VD0_MFXVDENC_POWERGATE_ENABLE |
+			     VD2_HCP_POWERGATE_ENABLE |
+			     VD2_MFXVDENC_POWERGATE_ENABLE)),
+	},
+	{ XE_RTP_NAME("14019449301"),
+	  XE_RTP_RULES(MEDIA_VERSION(1301), ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F08(0), CG3DDISHRS_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
+
 	{}
 };
 
@@ -513,6 +535,16 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 	  XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, WR_REQ_CHAINING_DIS))
 	},
 
+	/* Xe2_HPM */
+
+	{ XE_RTP_NAME("16021639441"),
+	  XE_RTP_RULES(MEDIA_VERSION(1301)),
+	  XE_RTP_ACTIONS(SET(CSFE_CHICKEN1(0),
+			     GHWSP_CSB_REPORT_DIS |
+			     PPHWSP_CSB_AND_TIMESTAMP_REPORT_DIS,
+			     XE_RTP_ACTION_FLAG(ENGINE_BASE)))
+	},
+
 	{}
 };