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Code Issues Releases Wiki Activity

drm/amdgpu: Remove job->s_entity to avoid keeping reference to stale pointer.

Browse source 
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andrey Grodzovsky 2017-10-24 13:30:16 -04:00 committed by Alex Deucher
parent 83f4b11801
commit a4176cb484
5 changed files with 22 additions and 22 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
View file

@ -1203,7 +1203,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
amdgpu_ring_priority_get(job->ring, job->base.s_priority);
trace_amdgpu_cs_ioctl(job);
amd_sched_entity_push_job(&job->base);
amd_sched_entity_push_job(&job->base, entity);
ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence);
amdgpu_mn_unlock(p->mn);

7
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
View file

@ -142,12 +142,13 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
*f = dma_fence_get(&job->base.s_fence->finished);
amdgpu_job_free_resources(job);
amdgpu_ring_priority_get(job->ring, job->base.s_priority);
amd_sched_entity_push_job(&job->base);
amd_sched_entity_push_job(&job->base, entity);
return 0;
}
static struct dma_fence *amdgpu_job_dependency(struct amd_sched_job *sched_job)
static struct dma_fence *amdgpu_job_dependency(struct amd_sched_job *sched_job,
struct amd_sched_entity *s_entity)
{
struct amdgpu_job *job = to_amdgpu_job(sched_job);
struct amdgpu_vm *vm = job->vm;
@ -155,7 +156,7 @@ static struct dma_fence *amdgpu_job_dependency(struct amd_sched_job *sched_job)
struct dma_fence *fence = amdgpu_sync_get_fence(&job->dep_sync);
int r;
if (amd_sched_dependency_optimized(fence, sched_job->s_entity)) {
if (amd_sched_dependency_optimized(fence, s_entity)) {
r = amdgpu_sync_fence(job->adev, &job->sched_sync, fence);
if (r)
DRM_ERROR("Error adding fence to sync (%d)\n", r);

9
drivers/gpu/drm/amd/scheduler/gpu_sched_trace.h
View file

@ -13,8 +13,8 @@
#define TRACE_INCLUDE_FILE gpu_sched_trace
TRACE_EVENT(amd_sched_job,
TP_PROTO(struct amd_sched_job *sched_job),
TP_ARGS(sched_job),
TP_PROTO(struct amd_sched_job *sched_job, struct amd_sched_entity *entity),
TP_ARGS(sched_job, entity),
TP_STRUCT__entry(
__field(struct amd_sched_entity *, entity)
__field(struct dma_fence *, fence)
@ -25,12 +25,11 @@ TRACE_EVENT(amd_sched_job,
),
TP_fast_assign(
__entry->entity = sched_job->s_entity;
__entry->entity = entity;
__entry->id = sched_job->id;
__entry->fence = &sched_job->s_fence->finished;
__entry->name = sched_job->sched->name;
__entry->job_count = spsc_queue_count(
&sched_job->s_entity->job_queue);
__entry->job_count = spsc_queue_count(&entity->job_queue);
__entry->hw_job_count = atomic_read(
&sched_job->sched->hw_rq_count);
),

19
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
View file

@ -341,11 +341,10 @@ amd_sched_entity_pop_job(struct amd_sched_entity *entity)
if (!sched_job)
return NULL;
while ((entity->dependency = sched->ops->dependency(sched_job)))
while ((entity->dependency = sched->ops->dependency(sched_job, entity)))
if (amd_sched_entity_add_dependency_cb(entity))
return NULL;
sched_job->s_entity = NULL;
spsc_queue_pop(&entity->job_queue);
return sched_job;
}
@ -357,13 +356,13 @@ amd_sched_entity_pop_job(struct amd_sched_entity *entity)
*
* Returns 0 for success, negative error code otherwise.
*/
void amd_sched_entity_push_job(struct amd_sched_job *sched_job)
void amd_sched_entity_push_job(struct amd_sched_job *sched_job,
struct amd_sched_entity *entity)
{
struct amd_gpu_scheduler *sched = sched_job->sched;
struct amd_sched_entity *entity = sched_job->s_entity;
bool first = false;
trace_amd_sched_job(sched_job);
trace_amd_sched_job(sched_job, entity);
spin_lock(&entity->queue_lock);
first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node);
@ -442,11 +441,12 @@ static void amd_sched_job_timedout(struct work_struct *work)
job->sched->ops->timedout_job(job);
}
static void amd_sched_set_guilty(struct amd_sched_job *s_job)
static void amd_sched_set_guilty(struct amd_sched_job *s_job,
struct amd_sched_entity *s_entity)
{
if (atomic_inc_return(&s_job->karma) > s_job->sched->hang_limit)
if (s_job->s_entity->guilty)
atomic_set(s_job->s_entity->guilty, 1);
if (s_entity->guilty)
atomic_set(s_entity->guilty, 1);
}
void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_job *bad)
@ -477,7 +477,7 @@ void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_jo
list_for_each_entry_safe(entity, tmp, &rq->entities, list) {
if (bad->s_fence->scheduled.context == entity->fence_context) {
found = true;
amd_sched_set_guilty(bad);
amd_sched_set_guilty(bad, entity);
break;
}
}
@ -541,7 +541,6 @@ int amd_sched_job_init(struct amd_sched_job *job,
void *owner)
{
job->sched = sched;
job->s_entity = entity;
job->s_priority = entity->rq - sched->sched_rq;
job->s_fence = amd_sched_fence_create(entity, owner);
if (!job->s_fence)

7
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
View file

@ -91,7 +91,6 @@ struct amd_sched_fence {
struct amd_sched_job {
struct spsc_node queue_node;
struct amd_gpu_scheduler *sched;
struct amd_sched_entity *s_entity;
struct amd_sched_fence *s_fence;
struct dma_fence_cb finish_cb;
struct work_struct finish_work;
@ -125,7 +124,8 @@ static inline bool amd_sched_invalidate_job(struct amd_sched_job *s_job, int thr
* these functions should be implemented in driver side
*/
struct amd_sched_backend_ops {
struct dma_fence *(*dependency)(struct amd_sched_job *sched_job);
struct dma_fence *(*dependency)(struct amd_sched_job *sched_job,
struct amd_sched_entity *s_entity);
struct dma_fence *(*run_job)(struct amd_sched_job *sched_job);
void (*timedout_job)(struct amd_sched_job *sched_job);
void (*free_job)(struct amd_sched_job *sched_job);
@ -161,7 +161,8 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
uint32_t jobs, atomic_t* guilty);
void amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
struct amd_sched_entity *entity);
void amd_sched_entity_push_job(struct amd_sched_job *sched_job);
void amd_sched_entity_push_job(struct amd_sched_job *sched_job,
struct amd_sched_entity *entity);
void amd_sched_entity_set_rq(struct amd_sched_entity *entity,
struct amd_sched_rq *rq);