[PATCH v5 14/25] drm/i915/guc: Reset LRC descriptor if register returns -ENODEV

[Daniele Ceraolo Spurio]

From: Matthew Brost <matthew.brost at intel.com>

Reset LRC descriptor if a context register returns -ENODEV as this means
we are mid-reset.

Fixes: eb5e7da736f3 ("drm/i915/guc: Reset implementation for new GuC interface")
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index ca73128d7b4d..dcd7a09f8559 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1405,10 +1405,12 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop)
 	} else {
 		with_intel_runtime_pm(runtime_pm, wakeref)
 			ret = register_context(ce, loop);
-		if (unlikely(ret == -EBUSY))
+		if (unlikely(ret == -EBUSY)) {
+			reset_lrc_desc(guc, desc_idx);
+		} else if (unlikely(ret == -ENODEV)) {
 			reset_lrc_desc(guc, desc_idx);
-		else if (unlikely(ret == -ENODEV))
 			ret = 0;	/* Will get registered later */
+		}
 	}
 
 	return ret;
-- 
2.25.1