drm/xe/ptl: Apply Wa_14022866841

As part of this WA, GuC will hold a forcewake for certain
MMIO accesses outside the GT/media domains.

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241015234428.2004825-1-vinay.belgaumkar@intel.com

Author: vsbelgaum

drivers/gpu/drm/xe/abi/guc_klvs_abi.h

@@ -352,6 +352,7 @@ enum xe_guc_klv_ids {
 	GUC_WORKAROUND_KLV_ID_DISABLE_MTP_DURING_ASYNC_COMPUTE				= 0x9007,
 	GUC_WA_KLV_NP_RD_WRITE_TO_CLEAR_RCSM_AT_CGP_LATE_RESTORE			= 0x9008,
 	GUC_WORKAROUND_KLV_ID_BACK_TO_BACK_RCS_ENGINE_RESET				= 0x9009,
+	GUC_WA_KLV_WAKE_POWER_DOMAINS_FOR_OUTBOUND_MMIO					= 0x900a,
 };
 
 #endif

drivers/gpu/drm/xe/xe_guc_ads.c

@@ -359,6 +359,11 @@ static void guc_waklv_init(struct xe_guc_ads *ads)
 					GUC_WORKAROUND_KLV_ID_DISABLE_MTP_DURING_ASYNC_COMPUTE,
 					&offset, &remain);
 
+	if (XE_WA(gt, 14022866841))
+		guc_waklv_enable_simple(ads,
+					GUC_WA_KLV_WAKE_POWER_DOMAINS_FOR_OUTBOUND_MMIO,
+					&offset, &remain);
+
 	/*
 	 * On RC6 exit, GuC will write register 0xB04 with the default value provided. As of now,
 	 * the default value for this register is determined to be 0xC40. This could change in the

drivers/gpu/drm/xe/xe_wa_oob.rules

@@ -39,3 +39,5 @@
 14019789679	GRAPHICS_VERSION(1255)
 		GRAPHICS_VERSION_RANGE(1270, 2004)
 no_media_l3	MEDIA_VERSION(3000)
+14022866841	GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0)
+		MEDIA_VERSION(3000), MEDIA_STEP(A0, B0)