[PATCH 1/2] drm/amd/sched: revise priority number

[Christian König]

Am 16.03.2017 um 10:00 schrieb Chunming Zhou:
> big number is to high priority.
>
> Change-Id: I1e94b3403d0cfd41a418d2bd741736cf7edc5d77
> Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 4 ++--
>   drivers/gpu/drm/amd/scheduler/gpu_scheduler.h | 9 +++++----
>   2 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> index 3ff25af..0f439dd 100644
> --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> @@ -499,7 +499,7 @@ static void amd_sched_wakeup(struct amd_gpu_scheduler *sched)
>   		return NULL;
>   
>   	/* Kernel run queue has higher priority than normal run queue*/
> -	for (i = 0; i < AMD_SCHED_MAX_PRIORITY; i++) {
> +	for (i = AMD_SCHED_PRIORITY_MAX - 1; i >= AMD_SCHED_PRIORITY_MIN; i--) {
>   		entity = amd_sched_rq_select_entity(&sched->sched_rq[i]);
>   		if (entity)
>   			break;
> @@ -607,7 +607,7 @@ int amd_sched_init(struct amd_gpu_scheduler *sched,
>   	sched->hw_submission_limit = hw_submission;
>   	sched->name = name;
>   	sched->timeout = timeout;
> -	for (i = 0; i < AMD_SCHED_MAX_PRIORITY; i++)
> +	for (i = AMD_SCHED_PRIORITY_MIN; i < AMD_SCHED_PRIORITY_MAX; i++)
>   		amd_sched_rq_init(&sched->sched_rq[i]);
>   
>   	init_waitqueue_head(&sched->wake_up_worker);
> diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> index 338d840..99f0240 100644
> --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> @@ -111,9 +111,10 @@ struct amd_sched_backend_ops {
>   };
>   
>   enum amd_sched_priority {
> -	AMD_SCHED_PRIORITY_KERNEL = 0,
> -	AMD_SCHED_PRIORITY_NORMAL,
> -	AMD_SCHED_MAX_PRIORITY
> +	AMD_SCHED_PRIORITY_MIN,
> +	AMD_SCHED_PRIORITY_NORMAL = AMD_SCHED_PRIORITY_MIN,
> +	AMD_SCHED_PRIORITY_KERNEL,
> +	AMD_SCHED_PRIORITY_MAX
>   };
>   
>   /**
> @@ -124,7 +125,7 @@ struct amd_gpu_scheduler {
>   	uint32_t			hw_submission_limit;
>   	long				timeout;
>   	const char			*name;
> -	struct amd_sched_rq		sched_rq[AMD_SCHED_MAX_PRIORITY];
> +	struct amd_sched_rq		sched_rq[AMD_SCHED_PRIORITY_MAX];
>   	wait_queue_head_t		wake_up_worker;
>   	wait_queue_head_t		job_scheduled;
>   	atomic_t			hw_rq_count;