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drm/scheduler: remove timeout work_struct from drm_sched_job (v3)

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having a delayed work item per job is redundant as we only need one
per scheduler to track the time out the currently executing job.

v2: the first element of the ring mirror list is the currently
executing job so we don't need a additional variable for it

v3: squash in fixes for v3d and etnaviv

Signed-off-by: Nayan Deshmukh <[email protected]>
Suggested-by: Christian König <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
This commit is contained in:
Nayan Deshmukh 2018-09-26 02:09:02 +09:00 • committed by Alex Deucher
commit 6a96243056
4 changed files with 21 additions and 20 deletions
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6
include/drm/gpu_scheduler.h
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@ -175,8 +175,6 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
* finished to remove the job from the
* @drm_gpu_scheduler.ring_mirror_list.
* @node: used to append this struct to the @drm_gpu_scheduler.ring_mirror_list.
* @work_tdr: schedules a delayed call to @drm_sched_job_timedout after the timeout
* interval is over.
* @id: a unique id assigned to each job scheduled on the scheduler.
* @karma: increment on every hang caused by this job. If this exceeds the hang
* limit of the scheduler then the job is marked guilty and will not
@ -195,7 +193,6 @@ struct drm_sched_job {
struct dma_fence_cb finish_cb;
struct work_struct finish_work;
struct list_head node;
struct delayed_work work_tdr;
uint64_t id;
atomic_t karma;
enum drm_sched_priority s_priority;
@ -259,6 +256,8 @@ struct drm_sched_backend_ops {
* finished.
* @hw_rq_count: the number of jobs currently in the hardware queue.
* @job_id_count: used to assign unique id to the each job.
* @work_tdr: schedules a delayed call to @drm_sched_job_timedout after the
* timeout interval is over.
* @thread: the kthread on which the scheduler which run.
* @ring_mirror_list: the list of jobs which are currently in the job queue.
* @job_list_lock: lock to protect the ring_mirror_list.
@ -278,6 +277,7 @@ struct drm_gpu_scheduler {
wait_queue_head_t job_scheduled;
atomic_t hw_rq_count;
atomic64_t job_id_count;
struct delayed_work work_tdr;
struct task_struct *thread;
struct list_head ring_mirror_list;
spinlock_t job_list_lock;