drm/xe: Fix Wa_22011802037 annotation

It was missing one digit, so not showing up as a proper WA number. Add
the missing number and annotate it with a FIXME as there are more to be
implemented to consider this WA done: ensure CS is stop before doing a
reset, wait for pending.

Also, this WA applies to platforms up to graphics version 1270 (with the
exception of MTL A*, that are not supported in xe). Fix platform check.

Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/284
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20230526164358.86393-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c
index 71f18b32d09b6206debc729a1213f50e141082cd..a8e249205bffa2c277faf7fe3488b4ad16a5ecd9 100644 (file)
--- a/drivers/gpu/drm/xe/xe_guc.c
+++ b/drivers/gpu/drm/xe/xe_guc.c
@@ -160,9 +160,11 @@ static u32 guc_ctl_wa_flags(struct xe_guc *guc)
                flags |= GUC_WA_DUAL_QUEUE;
 
        /*
-        * Wa_2201180203
+        * Wa_22011802037: FIXME - there's more to be done than simply setting
+        * this flag: make sure each CS is stopped when preparing for GT reset
+        * and wait for pending MI_FW.
         */
-       if (GRAPHICS_VER(xe) <= 12)
+       if (GRAPHICS_VERx100(xe) < 1270)
                flags |= GUC_WA_PRE_PARSER;
 
        /* Wa_16011777198 */