[PATCH v1] drm/xe/uc: Add xe_uc_stop on hardware initialization error handling

Zhanjun Dong zhanjun.dong at intel.com
Thu Jul 24 15:25:00 UTC 2025


During hardware initialization, GuC communication is expected, which
will increase the outstanding counter. Non-zero counter will cause
assertion failed during shutdown process.
Add xe_uc_stop call to clear the counter.

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5466
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5530

Signed-off-by: Zhanjun Dong <zhanjun.dong at intel.com>
---
 drivers/gpu/drm/xe/xe_uc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_uc.c b/drivers/gpu/drm/xe/xe_uc.c
index 465bda355443..6c72ce305d6c 100644
--- a/drivers/gpu/drm/xe/xe_uc.c
+++ b/drivers/gpu/drm/xe/xe_uc.c
@@ -173,6 +173,7 @@ static int vf_uc_load_hw(struct xe_uc *uc)
 	return 0;
 
 err_out:
+	xe_uc_stop(uc);
 	xe_guc_sanitize(&uc->guc);
 	return err;
 }
@@ -228,6 +229,7 @@ int xe_uc_load_hw(struct xe_uc *uc)
 	return 0;
 
 err_out:
+	xe_uc_stop(uc);
 	xe_guc_sanitize(&uc->guc);
 	return ret;
 }
-- 
2.34.1



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