From: Monk Liu <Monk.Liu@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <dri-devel@lists.freedesktop.org>, Monk Liu <Monk.Liu@amd.com>,
"jingwen chen" <jingwen.chen@amd.com>
Subject: [PATCH 2/2] drm/sched: serialize job_timeout and scheduler
Date: Tue, 31 Aug 2021 18:35:39 +0800 [thread overview]
Message-ID: <1630406139-19621-2-git-send-email-Monk.Liu@amd.com> (raw)
In-Reply-To: <1630406139-19621-1-git-send-email-Monk.Liu@amd.com>
tested-by: jingwen chen <jingwen.chen@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: jingwen chen <jingwen.chen@amd.com>
---
drivers/gpu/drm/scheduler/sched_main.c | 24 ++++--------------------
1 file changed, 4 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index ecf8140..894fdb24 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -319,19 +319,17 @@ static void drm_sched_job_timedout(struct work_struct *work)
sched = container_of(work, struct drm_gpu_scheduler, work_tdr.work);
/* Protects against concurrent deletion in drm_sched_get_cleanup_job */
+ if (!__kthread_should_park(sched->thread))
+ kthread_park(sched->thread);
+
spin_lock(&sched->job_list_lock);
job = list_first_entry_or_null(&sched->pending_list,
struct drm_sched_job, list);
if (job) {
- /*
- * Remove the bad job so it cannot be freed by concurrent
- * drm_sched_cleanup_jobs. It will be reinserted back after sched->thread
- * is parked at which point it's safe.
- */
- list_del_init(&job->list);
spin_unlock(&sched->job_list_lock);
+ /* vendor's timeout_job should call drm_sched_start() */
status = job->sched->ops->timedout_job(job);
/*
@@ -393,20 +391,6 @@ void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad)
kthread_park(sched->thread);
/*
- * Reinsert back the bad job here - now it's safe as
- * drm_sched_get_cleanup_job cannot race against us and release the
- * bad job at this point - we parked (waited for) any in progress
- * (earlier) cleanups and drm_sched_get_cleanup_job will not be called
- * now until the scheduler thread is unparked.
- */
- if (bad && bad->sched == sched)
- /*
- * Add at the head of the queue to reflect it was the earliest
- * job extracted.
- */
- list_add(&bad->list, &sched->pending_list);
-
- /*
* Iterate the job list from later to earlier one and either deactive
* their HW callbacks or remove them from pending list if they already
* signaled.
--
2.7.4
next prev parent reply other threads:[~2021-08-31 10:35 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-31 10:35 [PATCH 1/2] drm/sched: fix the bug of time out calculation(v3) Monk Liu
2021-08-31 10:35 ` Monk Liu [this message]
2021-08-31 12:59 ` [PATCH 2/2] drm/sched: serialize job_timeout and scheduler Daniel Vetter
2021-08-31 13:01 ` Daniel Vetter
2021-09-01 0:56 ` Liu, Monk
2021-09-01 1:29 ` Liu, Monk
2021-11-08 23:39 ` Rob Clark
2021-11-08 23:39 ` Rob Clark
2021-11-09 9:07 ` Daniel Vetter
2021-11-09 9:07 ` Daniel Vetter
2021-11-09 16:17 ` Rob Clark
2021-11-10 9:50 ` Daniel Vetter
2021-11-10 9:50 ` Daniel Vetter
2021-11-10 10:09 ` Christian König
2021-11-10 12:50 ` Andrey Grodzovsky
2021-11-10 13:24 ` Daniel Vetter
2021-11-10 13:24 ` Daniel Vetter
2021-11-11 15:54 ` Andrey Grodzovsky
2021-11-10 19:15 ` Rob Clark
2021-08-31 15:06 ` Luben Tuikov
2021-09-01 0:52 ` Liu, Monk
2021-08-31 13:53 ` Andrey Grodzovsky
2021-08-31 14:03 ` Daniel Vetter
2021-08-31 14:20 ` Andrey Grodzovsky
2021-08-31 14:38 ` Daniel Vetter
2021-08-31 15:23 ` Andrey Grodzovsky
2021-08-31 16:01 ` Luben Tuikov
2021-08-31 20:56 ` Andrey Grodzovsky
2021-08-31 21:24 ` Luben Tuikov
2021-09-01 0:24 ` [PATCH 1/2] drm/sched: fix the bug of time out calculation(v3) Liu, Monk
2021-09-01 0:32 ` Grodzovsky, Andrey
2021-09-01 0:46 [PATCH 1/2] drm/sched: fix the bug of time out calculation(v4) Monk Liu
2021-09-01 0:46 ` [PATCH 2/2] drm/sched: serialize job_timeout and scheduler Monk Liu
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