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-rw-r--r--drivers/gpu/drm/xe/xe_gsc.c12
-rw-r--r--drivers/gpu/drm/xe/xe_uc_fw.h9
2 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gpu/drm/xe/xe_gsc.c b/drivers/gpu/drm/xe/xe_gsc.c
index 2a612652bb13..29f96f409391 100644
--- a/drivers/gpu/drm/xe/xe_gsc.c
+++ b/drivers/gpu/drm/xe/xe_gsc.c
@@ -519,10 +519,22 @@ out_bo:
void xe_gsc_load_start(struct xe_gsc *gsc)
{
struct xe_gt *gt = gsc_to_gt(gsc);
+ struct xe_device *xe = gt_to_xe(gt);
if (!xe_uc_fw_is_loadable(&gsc->fw) || !gsc->q)
return;
+ /*
+ * The GSC HW is only reset by driver FLR or D3cold entry. We don't
+ * support the former at runtime, while the latter is only supported on
+ * DGFX, for which we don't support GSC. Therefore, if GSC failed to
+ * load previously there is no need to try again because the HW is
+ * stuck in the error state.
+ */
+ xe_assert(xe, !IS_DGFX(xe));
+ if (xe_uc_fw_is_in_error_state(&gsc->fw))
+ return;
+
/* GSC FW survives GT reset and D3Hot */
if (gsc_fw_is_loaded(gt)) {
xe_uc_fw_change_status(&gsc->fw, XE_UC_FIRMWARE_TRANSFERRED);
diff --git a/drivers/gpu/drm/xe/xe_uc_fw.h b/drivers/gpu/drm/xe/xe_uc_fw.h
index c108e9d08e70..6195e353f269 100644
--- a/drivers/gpu/drm/xe/xe_uc_fw.h
+++ b/drivers/gpu/drm/xe/xe_uc_fw.h
@@ -65,7 +65,7 @@ const char *xe_uc_fw_status_repr(enum xe_uc_fw_status status)
return "<invalid>";
}
-static inline int xe_uc_fw_status_to_error(enum xe_uc_fw_status status)
+static inline int xe_uc_fw_status_to_error(const enum xe_uc_fw_status status)
{
switch (status) {
case XE_UC_FIRMWARE_NOT_SUPPORTED:
@@ -108,7 +108,7 @@ static inline const char *xe_uc_fw_type_repr(enum xe_uc_fw_type type)
}
static inline enum xe_uc_fw_status
-__xe_uc_fw_status(struct xe_uc_fw *uc_fw)
+__xe_uc_fw_status(const struct xe_uc_fw *uc_fw)
{
/* shouldn't call this before checking hw/blob availability */
XE_WARN_ON(uc_fw->status == XE_UC_FIRMWARE_UNINITIALIZED);
@@ -156,6 +156,11 @@ static inline bool xe_uc_fw_is_overridden(const struct xe_uc_fw *uc_fw)
return uc_fw->user_overridden;
}
+static inline bool xe_uc_fw_is_in_error_state(const struct xe_uc_fw *uc_fw)
+{
+ return xe_uc_fw_status_to_error(__xe_uc_fw_status(uc_fw)) < 0;
+}
+
static inline void xe_uc_fw_sanitize(struct xe_uc_fw *uc_fw)
{
if (xe_uc_fw_is_loadable(uc_fw))