drm/xe/xe3: Add initial set of workarounds

Implement the initial set of workarounds for Xe3 IPs.

Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Matt Atwood <matthew.s.atwood@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/20241008204626.55802-2-matthew.s.atwood@intel.com

Author: guludo

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

@@ -186,6 +186,7 @@
 
 #define VDBOX_CGCTL3F10(base)			XE_REG((base) + 0x3f10)
 #define   IECPUNIT_CLKGATE_DIS			REG_BIT(22)
+#define   RAMDFTUNIT_CLKGATE_DIS		REG_BIT(9)
 
 #define VDBOX_CGCTL3F18(base)			XE_REG((base) + 0x3f18)
 #define   ALNUNIT_CLKGATE_DIS			REG_BIT(13)

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

@@ -286,6 +286,9 @@
 #define   GAMTLBVEBOX0_CLKGATE_DIS		REG_BIT(16)
 #define   LTCDD_CLKGATE_DIS			REG_BIT(10)
 
+#define UNSLCGCTL9454				XE_REG(0x9454)
+#define   LSCFE_CLKGATE_DIS			REG_BIT(4)
+
 #define XEHP_SLICE_UNIT_LEVEL_CLKGATE		XE_REG_MCR(0x94d4)
 #define   L3_CR2X_CLKGATE_DIS			REG_BIT(17)
 #define   L3_CLKGATE_DIS			REG_BIT(16)

drivers/gpu/drm/xe/xe_wa.c

@@ -252,6 +252,34 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
 	},
 
+	/* Xe3_LPG */
+
+	{ XE_RTP_NAME("14021871409"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0)),
+	  XE_RTP_ACTIONS(SET(UNSLCGCTL9454, LSCFE_CLKGATE_DIS))
+	},
+
+	/* Xe3_LPM */
+
+	{ XE_RTP_NAME("16021867713"),
+	  XE_RTP_RULES(MEDIA_VERSION(3000),
+		       ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F1C(0), MFXPIPE_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
+	{ XE_RTP_NAME("16021865536"),
+	  XE_RTP_RULES(MEDIA_VERSION(3000),
+		       ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), IECPUNIT_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
+	{ XE_RTP_NAME("14021486841"),
+	  XE_RTP_RULES(MEDIA_VERSION(3000), MEDIA_STEP(A0, B0),
+		       ENGINE_CLASS(VIDEO_DECODE)),
+	  XE_RTP_ACTIONS(SET(VDBOX_CGCTL3F10(0), RAMDFTUNIT_CLKGATE_DIS)),
+	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
+	},
+
 	{}
 };
 
@@ -568,6 +596,13 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 			     XE_RTP_ACTION_FLAG(ENGINE_BASE)))
 	},
 
+	/* Xe3_LPG */
+
+	{ XE_RTP_NAME("14021402888"),
+	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(3000, 3001), FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN7, CLEAR_OPTIMIZATION_DISABLE))
+	},
+
 	{}
 };
 
@@ -739,6 +774,18 @@ static const struct xe_rtp_entry_sr lrc_was[] = {
 	  XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_CLIP_NEGATIVE_BOUNDING_BOX))
 	},
 
+	/* Xe3_LPG */
+	{ XE_RTP_NAME("14021490052"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0),
+		       ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(SET(FF_MODE,
+			     DIS_MESH_PARTIAL_AUTOSTRIP |
+			     DIS_MESH_AUTOSTRIP),
+			 SET(VFLSKPD,
+			     DIS_PARTIAL_AUTOSTRIP |
+			     DIS_AUTOSTRIP))
+	},
+
 	{}
 };
 

drivers/gpu/drm/xe/xe_wa_oob.rules

@@ -33,6 +33,7 @@
 		GRAPHICS_VERSION(2004)
 22019338487	MEDIA_VERSION(2000)
 		GRAPHICS_VERSION(2001)
+		MEDIA_VERSION(3000), MEDIA_STEP(A0, B0)
 22019338487_display	PLATFORM(LUNARLAKE)
 16023588340	GRAPHICS_VERSION(2001)
 14019789679	GRAPHICS_VERSION(1255)