drm/amdgpu: make last_handled_seq atomic
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>
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 66938f1..55ebbf0 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -393,7 +393,7 @@
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 @@
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 @@
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);