Re: [PATCH 1/2] drm/sched: Rename priority MIN to LOW

["Christian König" <christian.koenig@amd.com>]

Am 24.11.23 um 06:27 schrieb Luben Tuikov:
> Rename DRM_SCHED_PRIORITY_MIN to DRM_SCHED_PRIORITY_LOW.
>
> This mirrors DRM_SCHED_PRIORITY_HIGH, for a list of DRM scheduler priorities
> in ascending order,
>    DRM_SCHED_PRIORITY_LOW,
>    DRM_SCHED_PRIORITY_NORMAL,
>    DRM_SCHED_PRIORITY_HIGH,
>    DRM_SCHED_PRIORITY_KERNEL.
>
> Cc: Rob Clark <robdclark@gmail.com>
> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> Cc: Danilo Krummrich <dakr@redhat.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: Christian König <christian.koenig@amd.com>
> Cc: linux-arm-msm@vger.kernel.org
> Cc: freedreno@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Luben Tuikov <ltuikov89@gmail.com>

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

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c  |  4 ++--
>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c  |  2 +-
>   drivers/gpu/drm/msm/msm_gpu.h            |  2 +-
>   drivers/gpu/drm/scheduler/sched_entity.c |  2 +-
>   drivers/gpu/drm/scheduler/sched_main.c   | 10 +++++-----
>   include/drm/gpu_scheduler.h              |  2 +-
>   6 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> index e2ae9ba147ba97..5cb33ac99f7089 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> @@ -73,10 +73,10 @@ amdgpu_ctx_to_drm_sched_prio(int32_t ctx_prio)
>   		return DRM_SCHED_PRIORITY_NORMAL;
>   
>   	case AMDGPU_CTX_PRIORITY_VERY_LOW:
> -		return DRM_SCHED_PRIORITY_MIN;
> +		return DRM_SCHED_PRIORITY_LOW;
>   
>   	case AMDGPU_CTX_PRIORITY_LOW:
> -		return DRM_SCHED_PRIORITY_MIN;
> +		return DRM_SCHED_PRIORITY_LOW;
>   
>   	case AMDGPU_CTX_PRIORITY_NORMAL:
>   		return DRM_SCHED_PRIORITY_NORMAL;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> index 62bb7fc7448ad9..1a25931607c514 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> @@ -325,7 +325,7 @@ void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
>   	int i;
>   
>   	/* Signal all jobs not yet scheduled */
> -	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
> +	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_LOW; i--) {
>   		struct drm_sched_rq *rq = sched->sched_rq[i];
>   		spin_lock(&rq->lock);
>   		list_for_each_entry(s_entity, &rq->entities, list) {
> diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
> index 4252e3839fbc83..eb0c97433e5f8a 100644
> --- a/drivers/gpu/drm/msm/msm_gpu.h
> +++ b/drivers/gpu/drm/msm/msm_gpu.h
> @@ -347,7 +347,7 @@ struct msm_gpu_perfcntr {
>    * DRM_SCHED_PRIORITY_KERNEL priority level is treated specially in some
>    * cases, so we don't use it (no need for kernel generated jobs).
>    */
> -#define NR_SCHED_PRIORITIES (1 + DRM_SCHED_PRIORITY_HIGH - DRM_SCHED_PRIORITY_MIN)
> +#define NR_SCHED_PRIORITIES (1 + DRM_SCHED_PRIORITY_HIGH - DRM_SCHED_PRIORITY_LOW)
>   
>   /**
>    * struct msm_file_private - per-drm_file context
> diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
> index 20c9c561843ce1..cb7445be3cbb4e 100644
> --- a/drivers/gpu/drm/scheduler/sched_entity.c
> +++ b/drivers/gpu/drm/scheduler/sched_entity.c
> @@ -88,7 +88,7 @@ int drm_sched_entity_init(struct drm_sched_entity *entity,
>   			drm_err(sched_list[0], "entity with out-of-bounds priority:%u num_rqs:%u\n",
>   				entity->priority, sched_list[0]->num_rqs);
>   			entity->priority = max_t(s32, (s32) sched_list[0]->num_rqs - 1,
> -						 (s32) DRM_SCHED_PRIORITY_MIN);
> +						 (s32) DRM_SCHED_PRIORITY_LOW);
>   		}
>   		entity->rq = sched_list[0]->sched_rq[entity->priority];
>   	}
> diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
> index 044a8c4875ba64..b6d7bc49ff6ef4 100644
> --- a/drivers/gpu/drm/scheduler/sched_main.c
> +++ b/drivers/gpu/drm/scheduler/sched_main.c
> @@ -1052,7 +1052,7 @@ drm_sched_select_entity(struct drm_gpu_scheduler *sched)
>   	int i;
>   
>   	/* Kernel run queue has higher priority than normal run queue*/
> -	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
> +	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_LOW; i--) {
>   		entity = drm_sched_policy == DRM_SCHED_POLICY_FIFO ?
>   			drm_sched_rq_select_entity_fifo(sched, sched->sched_rq[i]) :
>   			drm_sched_rq_select_entity_rr(sched, sched->sched_rq[i]);
> @@ -1291,7 +1291,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
>   	if (!sched->sched_rq)
>   		goto Out_free;
>   	sched->num_rqs = num_rqs;
> -	for (i = DRM_SCHED_PRIORITY_MIN; i < sched->num_rqs; i++) {
> +	for (i = DRM_SCHED_PRIORITY_LOW; i < sched->num_rqs; i++) {
>   		sched->sched_rq[i] = kzalloc(sizeof(*sched->sched_rq[i]), GFP_KERNEL);
>   		if (!sched->sched_rq[i])
>   			goto Out_unroll;
> @@ -1312,7 +1312,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched,
>   	sched->ready = true;
>   	return 0;
>   Out_unroll:
> -	for (--i ; i >= DRM_SCHED_PRIORITY_MIN; i--)
> +	for (--i ; i >= DRM_SCHED_PRIORITY_LOW; i--)
>   		kfree(sched->sched_rq[i]);
>   Out_free:
>   	kfree(sched->sched_rq);
> @@ -1338,7 +1338,7 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched)
>   
>   	drm_sched_wqueue_stop(sched);
>   
> -	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
> +	for (i = sched->num_rqs - 1; i >= DRM_SCHED_PRIORITY_LOW; i--) {
>   		struct drm_sched_rq *rq = sched->sched_rq[i];
>   
>   		spin_lock(&rq->lock);
> @@ -1390,7 +1390,7 @@ void drm_sched_increase_karma(struct drm_sched_job *bad)
>   	if (bad->s_priority != DRM_SCHED_PRIORITY_KERNEL) {
>   		atomic_inc(&bad->karma);
>   
> -		for (i = DRM_SCHED_PRIORITY_MIN;
> +		for (i = DRM_SCHED_PRIORITY_LOW;
>   		     i < min_t(typeof(sched->num_rqs), sched->num_rqs, DRM_SCHED_PRIORITY_KERNEL);
>   		     i++) {
>   			struct drm_sched_rq *rq = sched->sched_rq[i];
> diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
> index 9a50348bd5c04e..d8e2d84d9223e3 100644
> --- a/include/drm/gpu_scheduler.h
> +++ b/include/drm/gpu_scheduler.h
> @@ -63,7 +63,7 @@ struct drm_file;
>    * to an array, and as such should start at 0.
>    */
>   enum drm_sched_priority {
> -	DRM_SCHED_PRIORITY_MIN,
> +	DRM_SCHED_PRIORITY_LOW,
>   	DRM_SCHED_PRIORITY_NORMAL,
>   	DRM_SCHED_PRIORITY_HIGH,
>   	DRM_SCHED_PRIORITY_KERNEL,