From 7a36dcfa16a5a7a87f65e03e1a3eb2b5e2fca812 Mon Sep 17 00:00:00 2001 From: Matthew Brost Date: Mon, 30 Oct 2023 20:24:38 -0700 Subject: [PATCH] drm/sched: Add drm_sched_start_timeout_unlocked helper Also add a lockdep assert to drm_sched_start_timeout. Signed-off-by: Matthew Brost Reviewed-by: Luben Tuikov Link: https://lore.kernel.org/r/20231031032439.1558703-5-matthew.brost@intel.com Signed-off-by: Luben Tuikov --- drivers/gpu/drm/scheduler/sched_main.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 3b1b2f8eafe8..fc387de5a0c7 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -334,11 +334,20 @@ static void drm_sched_job_done_cb(struct dma_fence *f, struct dma_fence_cb *cb) */ static void drm_sched_start_timeout(struct drm_gpu_scheduler *sched) { + lockdep_assert_held(&sched->job_list_lock); + if (sched->timeout != MAX_SCHEDULE_TIMEOUT && !list_empty(&sched->pending_list)) queue_delayed_work(sched->timeout_wq, &sched->work_tdr, sched->timeout); } +static void drm_sched_start_timeout_unlocked(struct drm_gpu_scheduler *sched) +{ + spin_lock(&sched->job_list_lock); + drm_sched_start_timeout(sched); + spin_unlock(&sched->job_list_lock); +} + /** * drm_sched_fault - immediately start timeout handler * @@ -451,11 +460,8 @@ static void drm_sched_job_timedout(struct work_struct *work) spin_unlock(&sched->job_list_lock); } - if (status != DRM_GPU_SCHED_STAT_ENODEV) { - spin_lock(&sched->job_list_lock); - drm_sched_start_timeout(sched); - spin_unlock(&sched->job_list_lock); - } + if (status != DRM_GPU_SCHED_STAT_ENODEV) + drm_sched_start_timeout_unlocked(sched); } /** @@ -581,11 +587,8 @@ void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery) drm_sched_job_done(s_job, -ECANCELED); } - if (full_recovery) { - spin_lock(&sched->job_list_lock); - drm_sched_start_timeout(sched); - spin_unlock(&sched->job_list_lock); - } + if (full_recovery) + drm_sched_start_timeout_unlocked(sched); drm_sched_wqueue_start(sched); }