[PATCH v2] drm/xe/guc: Disable lite restore for MTL

[Zhanjun Dong]

Lite restore for MTL is not POR for Xe, then disable it for MTL.

Signed-off-by: Zhanjun Dong <zhanjun.dong at intel.com>
Reviewed-by: Julia Filipchuk <julia.filipchuk at intel.com>
---
Changes from prior revs:
  v2:- Changed long conditional initialization to simple if statement.

 drivers/gpu/drm/xe/xe_guc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c
index bc5714a5b36b..d9a0daf584b4 100644
--- a/drivers/gpu/drm/xe/xe_guc.c
+++ b/drivers/gpu/drm/xe/xe_guc.c
@@ -80,9 +80,13 @@ static u32 guc_ctl_debug_flags(struct xe_guc *guc)
 
 static u32 guc_ctl_feature_flags(struct xe_guc *guc)
 {
+	struct xe_device *xe = guc_to_xe(guc);
 	u32 flags = GUC_CTL_ENABLE_LITE_RESTORE;
 
-	if (!guc_to_xe(guc)->info.skip_guc_pc)
+	if (xe->info.platform == XE_METEORLAKE)
+		flags &= ~GUC_CTL_ENABLE_LITE_RESTORE;
+
+	if (!xe->info.skip_guc_pc)
 		flags |= GUC_CTL_ENABLE_SLPC;
 
 	return flags;
-- 
2.34.1