drm/xe/guc: Enable WA 14018913170

The GuC handles the WA, the KMD just needs to set the flag to enable
it on the appropriate platforms.

v2:
  - Fixed CI checkpatch warning, alignment should match open parenthesis.
  - Fixed GUC FW version check to use XE_UC_FW_VER_RELEASE which points to
    current GUC FW version instead of XE_UC_FW_VER_COMPATIBILITY which
    holds GUC FW I/F version (Badal).
v3:
  - Removed extra character in debug print.
Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240117055035.2417711-1-karthik.poosa@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_guc.c

@@ -132,10 +132,15 @@ static u32 guc_ctl_ads_flags(struct xe_guc *guc)
 	return flags;
 }
 
+#define GUC_VER(maj, min, pat)	(((maj) << 16) | ((min) << 8) | (pat))
+
 static u32 guc_ctl_wa_flags(struct xe_guc *guc)
 {
 	struct xe_device *xe = guc_to_xe(guc);
 	struct xe_gt *gt = guc_to_gt(guc);
+	struct xe_uc_fw *uc_fw = &guc->fw;
+	struct xe_uc_fw_version *version = &uc_fw->versions.found[XE_UC_FW_VER_RELEASE];
+
 	u32 flags = 0;
 
 	if (XE_WA(gt, 22012773006))
@@ -165,6 +170,14 @@ static u32 guc_ctl_wa_flags(struct xe_guc *guc)
 	if (XE_WA(gt, 1509372804))
 		flags |= GUC_WA_RENDER_RST_RC6_EXIT;
 
+	if (XE_WA(gt, 14018913170)) {
+		if (GUC_VER(version->major, version->minor, version->patch) >= GUC_VER(70, 7, 0))
+			flags |= GUC_WA_ENABLE_TSC_CHECK_ON_RC6;
+		else
+			drm_warn(&xe->drm, "can't apply WA 14018913170, GUC version expected >= 70.7.0, found %u %u %u\n",
+				 version->major, version->minor, version->patch);
+	}
+
 	return flags;
 }
 

drivers/gpu/drm/xe/xe_guc_fwif.h

@@ -97,6 +97,7 @@ struct guc_update_exec_queue_policy {
 #define   GUC_WA_POLLCS			BIT(18)
 #define   GUC_WA_RENDER_RST_RC6_EXIT	BIT(19)
 #define   GUC_WA_RCS_REGS_IN_CCS_REGS_LIST	BIT(21)
+#define   GUC_WA_ENABLE_TSC_CHECK_ON_RC6	BIT(22)
 
 #define GUC_CTL_FEATURE			2
 #define   GUC_CTL_ENABLE_SLPC		BIT(2)

drivers/gpu/drm/xe/xe_wa_oob.rules

@@ -17,3 +17,8 @@
 14019821291	MEDIA_VERSION_RANGE(1300, 2000)
 14015076503	MEDIA_VERSION(1300)
 16020292621	GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)
+14018913170	GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)
+		MEDIA_VERSION(2000), GRAPHICS_STEP(A0, A1)
+		GRAPHICS_VERSION_RANGE(1270, 1274)
+		MEDIA_VERSION(1300)
+		PLATFORM(DG2)