[PATCH] drm/amdgpu: fix job priority handling

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On 2018-07-18 02:14 PM, Christian König wrote:
> The job might already be released at this point.
> 
> Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Andres Rodriguez <andresx7 at gmail.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c  | 4 +++-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 4 +++-
>   2 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index 911c4a12a163..7c5cc33d0cda 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -1209,6 +1209,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
>   {
>   	struct amdgpu_ring *ring = p->ring;
>   	struct drm_sched_entity *entity = &p->ctx->rings[ring->idx].entity;
> +	enum drm_sched_priority priority;
>   	struct amdgpu_job *job;
>   	unsigned i;
>   	uint64_t seq;
> @@ -1258,10 +1259,11 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
>   	amdgpu_job_free_resources(job);
>   
>   	trace_amdgpu_cs_ioctl(job);
> +	priority = job->base.s_priority;
>   	drm_sched_entity_push_job(&job->base, entity);
>   
>   	ring = to_amdgpu_ring(entity->sched);
> -	amdgpu_ring_priority_get(ring, job->base.s_priority);
> +	amdgpu_ring_priority_get(ring, priority);
>   
>   	ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence);
>   	amdgpu_mn_unlock(p->mn);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> index 8b679c85d213..5a2c26a85984 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> @@ -126,6 +126,7 @@ void amdgpu_job_free(struct amdgpu_job *job)
>   int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity,
>   		      void *owner, struct dma_fence **f)
>   {
> +	enum drm_sched_priority priority;
>   	struct amdgpu_ring *ring;
>   	int r;
>   
> @@ -139,10 +140,11 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity,
>   	job->owner = owner;
>   	*f = dma_fence_get(&job->base.s_fence->finished);
>   	amdgpu_job_free_resources(job);
> +	priority = job->base.s_priority;
>   	drm_sched_entity_push_job(&job->base, entity);
>   
>   	ring = to_amdgpu_ring(entity->sched);
> -	amdgpu_ring_priority_get(ring, job->base.s_priority);
> +	amdgpu_ring_priority_get(ring, priority);
>   
>   	return 0;
>   }
> 


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