dma_fence_put(submit->in_fence);
if (submit->out_fence) {
/* first remove from IDR, so fence can not be found anymore */
- mutex_lock(&submit->gpu->fence_idr_lock);
+ mutex_lock(&submit->gpu->fence_lock);
idr_remove(&submit->gpu->fence_idr, submit->out_fence_id);
- mutex_unlock(&submit->gpu->fence_idr_lock);
+ mutex_unlock(&submit->gpu->fence_lock);
dma_fence_put(submit->out_fence);
}
kfree(submit->pmrs);
int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity,
struct etnaviv_gem_submit *submit)
{
- int ret;
+ int ret = 0;
+
+ /*
+ * Hold the fence lock across the whole operation to avoid jobs being
+ * pushed out of order with regard to their sched fence seqnos as
+ * allocated in drm_sched_job_init.
+ */
+ mutex_lock(&submit->gpu->fence_lock);
ret = drm_sched_job_init(&submit->sched_job, &submit->gpu->sched,
sched_entity, submit->cmdbuf.ctx);
if (ret)
- return ret;
+ goto out_unlock;
submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished);
- mutex_lock(&submit->gpu->fence_idr_lock);
submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr,
submit->out_fence, 0,
INT_MAX, GFP_KERNEL);
- mutex_unlock(&submit->gpu->fence_idr_lock);
- if (submit->out_fence_id < 0)
- return -ENOMEM;
+ if (submit->out_fence_id < 0) {
+ ret = -ENOMEM;
+ goto out_unlock;
+ }
/* the scheduler holds on to the job now */
kref_get(&submit->refcount);
drm_sched_entity_push_job(&submit->sched_job, sched_entity);
- return 0;
+out_unlock:
+ mutex_unlock(&submit->gpu->fence_lock);
+
+ return ret;
}
int etnaviv_sched_init(struct etnaviv_gpu *gpu)