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* [PATCH RESEND] drm/xe/client: Check return value of xe_force_wake_get
@ 2024-06-25  9:42 Nirmoy Das
  2024-06-25 10:00 ` Nirmoy Das
                   ` (9 more replies)
  0 siblings, 10 replies; 12+ messages in thread
From: Nirmoy Das @ 2024-06-25  9:42 UTC (permalink / raw)
  To: intel-xe; +Cc: Nirmoy Das, Himal Prasad Ghimiray, Lucas De Marchi, Rodrigo Vivi

xe_force_wake_get() can return error so check it's return value
before reading gpu_timestamp value.

v2: set HWE to NULL instead of setting timestamp to 0(Lucas)
    Add a warn on for xe_force_wake_put(Himal)

Fixes: 188ced1e0ff8 ("drm/xe/client: Print runtime to fdinfo")
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
---
 drivers/gpu/drm/xe/xe_drm_client.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_drm_client.c b/drivers/gpu/drm/xe/xe_drm_client.c
index 4a19b771e3a0..4bdb909eabfc 100644
--- a/drivers/gpu/drm/xe/xe_drm_client.c
+++ b/drivers/gpu/drm/xe/xe_drm_client.c
@@ -264,9 +264,13 @@ static void show_run_ticks(struct drm_printer *p, struct drm_file *file)
 		if (!hwe)
 			continue;
 
-		xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
+		if (xe_force_wake_get(gt_to_fw(gt), XE_FW_GT)) {
+			hwe = NULL;
+			break;
+		}
+
 		gpu_timestamp = xe_hw_engine_read_timestamp(hwe);
-		xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
+		XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FW_GT));
 		break;
 	}
 
-- 
2.42.0


^ permalink raw reply related	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2024-06-28  8:48 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
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2024-06-25  9:42 [PATCH RESEND] drm/xe/client: Check return value of xe_force_wake_get Nirmoy Das
2024-06-25 10:00 ` Nirmoy Das
2024-06-25 10:02 ` ✓ CI.Patch_applied: success for drm/xe/client: Check return value of xe_force_wake_get (rev5) Patchwork
2024-06-25 10:02 ` ✓ CI.checkpatch: " Patchwork
2024-06-25 10:03 ` ✓ CI.KUnit: " Patchwork
2024-06-25 10:15 ` ✓ CI.Build: " Patchwork
2024-06-25 10:17 ` ✗ CI.Hooks: failure " Patchwork
2024-06-25 10:19 ` ✓ CI.checksparse: success " Patchwork
2024-06-25 10:42 ` ✓ CI.BAT: " Patchwork
2024-06-25 13:17 ` ✗ CI.FULL: failure " Patchwork
2024-06-27 19:00 ` [PATCH RESEND] drm/xe/client: Check return value of xe_force_wake_get Lucas De Marchi
2024-06-28  8:48   ` Nirmoy Das

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