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drm/amdgpu: wake up scheduler only when neccessary 

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
This commit is contained in:
Christian König 2015-08-24 14:29:40 +02:00 committed by Alex Deucher
parent 062c7fb3eb
commit 88079006dc
1 changed files with 12 additions and 1 deletions
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13
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
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@ -27,6 +27,8 @@
#include <drm/drmP.h>
#include "gpu_scheduler.h"
static void amd_sched_wakeup(struct amd_gpu_scheduler *sched);
/* Initialize a given run queue struct */
static void amd_sched_rq_init(struct amd_sched_rq *rq)
{
@ -209,7 +211,7 @@ static bool amd_sched_entity_in(struct amd_sched_job *job)
/* first job wakes up scheduler */
if (first)
wake_up_interruptible(&job->sched->wait_queue);
amd_sched_wakeup(job->sched);
return added;
}
@ -249,6 +251,15 @@ static bool amd_sched_ready(struct amd_gpu_scheduler *sched)
sched->hw_submission_limit;
}
/**
* Wake up the scheduler when it is ready
*/
static void amd_sched_wakeup(struct amd_gpu_scheduler *sched)
{
if (amd_sched_ready(sched))
wake_up_interruptible(&sched->wait_queue);
}
/**
* Select next entity containing real IB submissions
*/