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drm/amdgpu: make last_handled_seq atomic

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Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jammy Zhou 2015-07-31 17:54:29 +08:00 committed by Alex Deucher
parent f95b7e3e86
commit 63ad8d5882
2 changed files with 4 additions and 4 deletions
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6
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
View file

@ -393,7 +393,7 @@ static int amd_sched_main(void *param)
uint64_t amd_sched_get_handled_seq(struct amd_gpu_scheduler *sched)
{
return sched->last_handled_seq;
return atomic64_read(&sched->last_handled_seq);
}
/**
@ -414,7 +414,7 @@ void amd_sched_isr(struct amd_gpu_scheduler *sched)
job = NULL;
sched->ops->process_job(sched, job);
sched->last_handled_seq++;
atomic64_inc(&sched->last_handled_seq);
wake_up_interruptible(&sched->wait_queue);
}
@ -448,7 +448,7 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
sched->granularity = granularity;
sched->ring_id = ring;
sched->preemption = preemption;
sched->last_handled_seq = 0;
atomic64_set(&sched->last_handled_seq, 0);
snprintf(name, sizeof(name), "gpu_sched[%d]", ring);
mutex_init(&sched->sched_lock);

2
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
View file

@ -112,7 +112,7 @@ struct amd_gpu_scheduler {
uint32_t ring_id;
uint32_t granularity; /* in ms unit */
uint32_t preemption;
uint64_t last_handled_seq;
atomic64_t last_handled_seq;
wait_queue_head_t wait_queue;
struct amd_context_entity *current_entity;
struct mutex sched_lock;