From: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH] drm/i915/pmu: Fix wakeref leak in PMU busyness during reset
Date: Mon, 6 Dec 2021 18:02:39 -0800 [thread overview]
Message-ID: <20211207020239.43402-1-umesh.nerlige.ramappa@intel.com> (raw)
GuC PMU busyness gets gt wakeref if awake, but fails to release the
wakeref if a reset is in progress. Release the wakeref if it was
acquried successfully.
v2: Simplify the fix (Ashutosh)
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 1f9d4fde421f..97311119da6f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1206,7 +1206,7 @@ static ktime_t guc_engine_busyness(struct intel_engine_cs *engine, ktime_t *now)
* start_gt_clk is derived from GuC state. To get a consistent
* view of activity, we query the GuC state only if gt is awake.
*/
- if (intel_gt_pm_get_if_awake(gt) && !in_reset) {
+ if (!in_reset && intel_gt_pm_get_if_awake(gt)) {
stats_saved = *stats;
gt_stamp_saved = guc->timestamp.gt_stamp;
guc_update_engine_gt_clks(engine);
--
2.20.1
next reply other threads:[~2021-12-07 2:03 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 2:02 Umesh Nerlige Ramappa [this message]
2021-12-07 2:08 ` [Intel-gfx] [PATCH] drm/i915/pmu: Fix wakeref leak in PMU busyness during reset Dixit, Ashutosh
2021-12-07 2:51 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/pmu: Fix wakeref leak in PMU busyness during reset (rev2) Patchwork
2021-12-07 5:22 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-12-07 21:37 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/pmu: Fix wakeref leak in PMU busyness during reset (rev3) Patchwork
2021-12-08 5:41 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-12-08 17:55 ` Patchwork
2021-12-08 18:38 ` [Intel-gfx] ✓ Fi.CI.IGT: success " Patchwork
-- strict thread matches above, loose matches on Subject: below --
2021-12-07 0:45 [Intel-gfx] [PATCH] drm/i915/pmu: Fix wakeref leak in PMU busyness during reset Umesh Nerlige Ramappa
2021-12-07 1:30 ` Dixit, Ashutosh
2021-12-07 2:04 ` Umesh Nerlige Ramappa
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