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gpu/drm: ring_mirror_list --> pending_list

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Rename "ring_mirror_list" to "pending_list",
to describe what something is, not what it does,
how it's used, or how the hardware implements it.

This also abstracts the actual hardware
implementation, i.e. how the low-level driver
communicates with the device it drives, ring, CAM,
etc., shouldn't be exposed to DRM.

The pending_list keeps jobs submitted, which are
out of our control. Usually this means they are
pending execution status in hardware, but the
latter definition is a more general (inclusive)
definition.

Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/405573/

Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Luben Tuikov 2020-12-03 22:17:19 -05:00 committed by Christian König
parent 8935ff00e3
commit 6efa4b465c
5 changed files with 27 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
View file

@ -1427,7 +1427,7 @@ static void amdgpu_ib_preempt_job_recovery(struct drm_gpu_scheduler *sched)
struct dma_fence *fence;
spin_lock(&sched->job_list_lock);
list_for_each_entry(s_job, &sched->ring_mirror_list, list) {
list_for_each_entry(s_job, &sched->pending_list, list) {
fence = sched->ops->run_job(s_job);
dma_fence_put(fence);
}
@ -1459,7 +1459,7 @@ static void amdgpu_ib_preempt_mark_partial_job(struct amdgpu_ring *ring)
no_preempt:
spin_lock(&sched->job_list_lock);
list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, list) {
list_for_each_entry_safe(s_job, tmp, &sched->pending_list, list) {
if (dma_fence_is_signaled(&s_job->s_fence->finished)) {
/* remove job from ring_mirror_list */
list_del_init(&s_job->list);

4
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -4127,8 +4127,8 @@ bool amdgpu_device_has_job_running(struct amdgpu_device *adev)
continue;
spin_lock(&ring->sched.job_list_lock);
job = list_first_entry_or_null(&ring->sched.ring_mirror_list,
struct drm_sched_job, list);
job = list_first_entry_or_null(&ring->sched.pending_list,
struct drm_sched_job, list);
spin_unlock(&ring->sched.job_list_lock);
if (job)
return true;

2
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
View file

@ -271,7 +271,7 @@ void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
}
/* Signal all jobs already scheduled to HW */
list_for_each_entry(s_job, &sched->ring_mirror_list, list) {
list_for_each_entry(s_job, &sched->pending_list, list) {
struct drm_sched_fence *s_fence = s_job->s_fence;
dma_fence_set_error(&s_fence->finished, -EHWPOISON);

34
drivers/gpu/drm/scheduler/sched_main.c
View file

@ -198,7 +198,7 @@ EXPORT_SYMBOL(drm_sched_dependency_optimized);
static void drm_sched_start_timeout(struct drm_gpu_scheduler *sched)
{
if (sched->timeout != MAX_SCHEDULE_TIMEOUT &&
!list_empty(&sched->ring_mirror_list))
!list_empty(&sched->pending_list))
schedule_delayed_work(&sched->work_tdr, sched->timeout);
}
@ -258,7 +258,7 @@ void drm_sched_resume_timeout(struct drm_gpu_scheduler *sched,
{
spin_lock(&sched->job_list_lock);
if (list_empty(&sched->ring_mirror_list))
if (list_empty(&sched->pending_list))
cancel_delayed_work(&sched->work_tdr);
else
mod_delayed_work(system_wq, &sched->work_tdr, remaining);
@ -272,7 +272,7 @@ static void drm_sched_job_begin(struct drm_sched_job *s_job)
struct drm_gpu_scheduler *sched = s_job->sched;
spin_lock(&sched->job_list_lock);
list_add_tail(&s_job->list, &sched->ring_mirror_list);
list_add_tail(&s_job->list, &sched->pending_list);
drm_sched_start_timeout(sched);
spin_unlock(&sched->job_list_lock);
}
@ -286,7 +286,7 @@ static void drm_sched_job_timedout(struct work_struct *work)
/* Protects against concurrent deletion in drm_sched_get_cleanup_job */
spin_lock(&sched->job_list_lock);
job = list_first_entry_or_null(&sched->ring_mirror_list,
job = list_first_entry_or_null(&sched->pending_list,
struct drm_sched_job, list);
if (job) {
@ -371,7 +371,7 @@ EXPORT_SYMBOL(drm_sched_increase_karma);
* Stop the scheduler and also removes and frees all completed jobs.
* Note: bad job will not be freed as it might be used later and so it's
* callers responsibility to release it manually if it's not part of the
* mirror list any more.
* pending list any more.
*
*/
void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad)
@ -392,15 +392,15 @@ void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad)
* Add at the head of the queue to reflect it was the earliest
* job extracted.
*/
list_add(&bad->list, &sched->ring_mirror_list);
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 mirror list if they already
* their HW callbacks or remove them from pending list if they already
* signaled.
* This iteration is thread safe as sched thread is stopped.
*/
list_for_each_entry_safe_reverse(s_job, tmp, &sched->ring_mirror_list,
list_for_each_entry_safe_reverse(s_job, tmp, &sched->pending_list,
list) {
if (s_job->s_fence->parent &&
dma_fence_remove_callback(s_job->s_fence->parent,
@ -408,7 +408,7 @@ void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad)
atomic_dec(&sched->hw_rq_count);
} else {
/*
* remove job from ring_mirror_list.
* remove job from pending_list.
* Locking here is for concurrent resume timeout
*/
spin_lock(&sched->job_list_lock);
@ -463,7 +463,7 @@ void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery)
* so no new jobs are being inserted or removed. Also concurrent
* GPU recovers can't run in parallel.
*/
list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, list) {
list_for_each_entry_safe(s_job, tmp, &sched->pending_list, list) {
struct dma_fence *fence = s_job->s_fence->parent;
atomic_inc(&sched->hw_rq_count);
@ -494,7 +494,7 @@ void drm_sched_start(struct drm_gpu_scheduler *sched, bool full_recovery)
EXPORT_SYMBOL(drm_sched_start);
/**
* drm_sched_resubmit_jobs - helper to relunch job from mirror ring list
* drm_sched_resubmit_jobs - helper to relunch job from pending ring list
*
* @sched: scheduler instance
*
@ -506,7 +506,7 @@ void drm_sched_resubmit_jobs(struct drm_gpu_scheduler *sched)
bool found_guilty = false;
struct dma_fence *fence;
list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, list) {
list_for_each_entry_safe(s_job, tmp, &sched->pending_list, list) {
struct drm_sched_fence *s_fence = s_job->s_fence;
if (!found_guilty && atomic_read(&s_job->karma) > sched->hang_limit) {
@ -665,7 +665,7 @@ static void drm_sched_process_job(struct dma_fence *f, struct dma_fence_cb *cb)
*
* @sched: scheduler instance
*
* Returns the next finished job from the mirror list (if there is one)
* Returns the next finished job from the pending list (if there is one)
* ready for it to be destroyed.
*/
static struct drm_sched_job *
@ -675,7 +675,7 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
/*
* Don't destroy jobs while the timeout worker is running OR thread
* is being parked and hence assumed to not touch ring_mirror_list
* is being parked and hence assumed to not touch pending_list
*/
if ((sched->timeout != MAX_SCHEDULE_TIMEOUT &&
!cancel_delayed_work(&sched->work_tdr)) ||
@ -684,11 +684,11 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
spin_lock(&sched->job_list_lock);
job = list_first_entry_or_null(&sched->ring_mirror_list,
job = list_first_entry_or_null(&sched->pending_list,
struct drm_sched_job, list);
if (job && dma_fence_is_signaled(&job->s_fence->finished)) {
/* remove job from ring_mirror_list */
/* remove job from pending_list */
list_del_init(&job->list);
} else {
job = NULL;
@ -858,7 +858,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
init_waitqueue_head(&sched->wake_up_worker);
init_waitqueue_head(&sched->job_scheduled);
INIT_LIST_HEAD(&sched->ring_mirror_list);
INIT_LIST_HEAD(&sched->pending_list);
spin_lock_init(&sched->job_list_lock);
atomic_set(&sched->hw_rq_count, 0);
INIT_DELAYED_WORK(&sched->work_tdr, drm_sched_job_timedout);

10
include/drm/gpu_scheduler.h
View file

@ -174,7 +174,7 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
* @sched: the scheduler instance on which this job is scheduled.
* @s_fence: contains the fences for the scheduling of job.
* @finish_cb: the callback for the finished fence.
* @node: used to append this struct to the @drm_gpu_scheduler.ring_mirror_list.
* @node: used to append this struct to the @drm_gpu_scheduler.pending_list.
* @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
@ -203,7 +203,7 @@ struct drm_sched_job {
static inline bool drm_sched_invalidate_job(struct drm_sched_job *s_job,
int threshold)
{
return (s_job && atomic_inc_return(&s_job->karma) > threshold);
return s_job && atomic_inc_return(&s_job->karma) > threshold;
}
/**
@ -260,8 +260,8 @@ struct drm_sched_backend_ops {
* @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.
* @pending_list: the list of jobs which are currently in the job queue.
* @job_list_lock: lock to protect the pending_list.
* @hang_limit: once the hangs by a job crosses this limit then it is marked
* guilty and it will be considered for scheduling further.
* @score: score to help loadbalancer pick a idle sched
@ -282,7 +282,7 @@ struct drm_gpu_scheduler {
atomic64_t job_id_count;
struct delayed_work work_tdr;
struct task_struct *thread;
struct list_head ring_mirror_list;
struct list_head pending_list;
spinlock_t job_list_lock;
int hang_limit;
atomic_t score;