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drm/sched: Use drm sched lockdep map for submit_wq

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Avoid leaking a lockdep map on each drm sched creation and destruction
by using a single lockdep map for all drm sched allocated submit_wq.

v2:
 - Use alloc_ordered_workqueue_lockdep_map (Tejun)

Cc: Luben Tuikov <ltuikov89@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241002131639.3425022-2-matthew.brost@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
This commit is contained in:
Matthew Brost 2024-10-02 06:16:38 -07:00 committed by Maarten Lankhorst
parent f9e7ac6e2e
commit 34f50cc644
1 changed files with 11 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/gpu/drm/scheduler/sched_main.c
View file

@ -87,6 +87,12 @@
#define CREATE_TRACE_POINTS #define CREATE_TRACE_POINTS
#include "gpu_scheduler_trace.h" #include "gpu_scheduler_trace.h"
#ifdef CONFIG_LOCKDEP
static struct lockdep_map drm_sched_lockdep_map = {
.name = "drm_sched_lockdep_map"
};
#endif
#define to_drm_sched_job(sched_job) \ #define to_drm_sched_job(sched_job) \
container_of((sched_job), struct drm_sched_job, queue_node) container_of((sched_job), struct drm_sched_job, queue_node)
@ -1269,7 +1275,12 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
sched->submit_wq = submit_wq; sched->submit_wq = submit_wq;
sched->own_submit_wq = false; sched->own_submit_wq = false;
} else { } else {
#ifdef CONFIG_LOCKDEP
sched->submit_wq = alloc_ordered_workqueue_lockdep_map(name, 0,
&drm_sched_lockdep_map);
#else
sched->submit_wq = alloc_ordered_workqueue(name, 0); sched->submit_wq = alloc_ordered_workqueue(name, 0);
#endif
if (!sched->submit_wq) if (!sched->submit_wq)
return -ENOMEM; return -ENOMEM;