drm/amdgpu: remove sched_lock

It isn't protecting anything.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>

diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 2ab63d2..b13642f 100644 (file)
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -302,7 +302,6 @@ static int amd_sched_main(void *param)
                        continue;
                atomic_inc(&sched->hw_rq_count);
 
-               mutex_lock(&sched->sched_lock);
                fence = sched->ops->run_job(sched, c_entity, job);
                if (fence) {
                        r = fence_add_callback(fence, &job->cb,
@@ -313,7 +312,6 @@ static int amd_sched_main(void *param)
                                DRM_ERROR("fence add callback failed (%d)\n", r);
                        fence_put(fence);
                }
-               mutex_unlock(&sched->sched_lock);
 
                if (c_entity->need_wakeup) {
                        c_entity->need_wakeup = false;
@@ -356,7 +354,6 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
        sched->preemption = preemption;
        sched->hw_submission_limit = hw_submission;
        snprintf(name, sizeof(name), "gpu_sched[%d]", ring);
-       mutex_init(&sched->sched_lock);
        amd_sched_rq_init(&sched->sched_rq);
        amd_sched_rq_init(&sched->kernel_rq);
 

diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
index 5913c5c..123b8f1 100644 (file)
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
@@ -114,7 +114,6 @@ struct amd_gpu_scheduler {
        uint32_t                        granularity; /* in ms unit */
        uint32_t                        preemption;
        wait_queue_head_t               wait_queue;
-       struct mutex                    sched_lock;
        uint32_t                        hw_submission_limit;
 };