[PATCH v5 32/33] drm/xe/gt: Report 'Queue full' pagefault error using SIGID

Report 'Queue full' error using xe_log_err() helper.
While around, replace WARN_ON with WARN_ON_ONCE as there is no
need for extra noise each time we hit this unlikely condition.

Signed-off-by: Michal Wajdeczko <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Matthew Brost <[email protected]>
Cc: Daniele Ceraolo Spurio <[email protected]>
Cc: Aravind Iddamsetty <[email protected]>
Cc: Mallesh Koujalagi <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
---
v2: mention WARN_ON_ONCE change in commit msg (Rodrigo)
---
 drivers/gpu/drm/xe/xe_pagefault.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_pagefault.c b/drivers/gpu/drm/xe/xe_pagefault.c
index 8b1f6f5448ba..9e89d7b37395 100644
--- a/drivers/gpu/drm/xe/xe_pagefault.c
+++ b/drivers/gpu/drm/xe/xe_pagefault.c
@@ -328,8 +328,10 @@ xe_pagefault_queue_add(struct xe_pagefault_queue *pf_queue,
 
 	do {
 		/* Not possible, warn on and drop page fault */
-		if (WARN_ON(xe_pagefault_queue_full(pf_queue)))
+		if (WARN_ON_ONCE(xe_pagefault_queue_full(pf_queue))) {
+			xe_log_err(xe, PAGEFAULT, -ENOSPC, "Queue full!\n");
 			return NULL;
+		}
 
 		lpf = (pf_queue->data + pf_queue->head);
 		pf_queue->head = (pf_queue->head + xe_pagefault_entry_size()) %
-- 
2.47.1