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drm/scheduler: Scheduler priority fixes (v2)

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Remove DRM_SCHED_PRIORITY_LOW, as it was used
in only one place.

Rename and separate by a line
DRM_SCHED_PRIORITY_MAX to DRM_SCHED_PRIORITY_COUNT
as it represents a (total) count of said
priorities and it is used as such in loops
throughout the code. (0-based indexing is the
the count number.)

Remove redundant word HIGH in priority names,
and rename *KERNEL* to *HIGH*, as it really
means that, high.

v2: Add back KERNEL and remove SW and HW,
    in lieu of a single HIGH between NORMAL and KERNEL.

Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Luben Tuikov
2020-08-11 19:59:58 -04:00
committed by Alex Deucher
parent c80e966b54
commit e2d732fdb7
8 changed files with 18 additions and 16 deletions
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12
include/drm/gpu_scheduler.h
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@@ -33,14 +33,16 @@
struct drm_gpu_scheduler;
struct drm_sched_rq;
/* These are often used as an (initial) index
* 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_MIN,
DRM_SCHED_PRIORITY_NORMAL,
DRM_SCHED_PRIORITY_HIGH_SW,
DRM_SCHED_PRIORITY_HIGH_HW,
DRM_SCHED_PRIORITY_HIGH,
DRM_SCHED_PRIORITY_KERNEL,
DRM_SCHED_PRIORITY_MAX,
DRM_SCHED_PRIORITY_COUNT,
DRM_SCHED_PRIORITY_INVALID = -1,
DRM_SCHED_PRIORITY_UNSET = -2
};
@@ -274,7 +276,7 @@ struct drm_gpu_scheduler {
uint32_t hw_submission_limit;
long timeout;
const char *name;
struct drm_sched_rq sched_rq[DRM_SCHED_PRIORITY_MAX];
struct drm_sched_rq sched_rq[DRM_SCHED_PRIORITY_COUNT];
wait_queue_head_t wake_up_worker;
wait_queue_head_t job_scheduled;
atomic_t hw_rq_count;