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drm/amdgpu: add amd_sched_job_recovery 

Which is to recover hw jobs when gpu reset.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-06-29 15:23:55 +08:00 committed by Alex Deucher
parent 2200edac74
commit ec75f573c3
2 changed files with 34 additions and 0 deletions
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33
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
View File

@ -32,6 +32,7 @@
static bool amd_sched_entity_is_ready(struct amd_sched_entity *entity);
static void amd_sched_wakeup(struct amd_gpu_scheduler *sched);
static void amd_sched_process_job(struct fence *f, struct fence_cb *cb);
struct kmem_cache *sched_fence_slab;
atomic_t sched_fence_slab_ref = ATOMIC_INIT(0);
@ -395,6 +396,38 @@ void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched)
spin_unlock(&sched->job_list_lock);
}
void amd_sched_job_recovery(struct amd_gpu_scheduler *sched)
{
struct amd_sched_job *s_job;
int r;
spin_lock(&sched->job_list_lock);
s_job = list_first_entry_or_null(&sched->ring_mirror_list,
struct amd_sched_job, node);
if (s_job)
schedule_delayed_work(&s_job->work_tdr, sched->timeout);
list_for_each_entry(s_job, &sched->ring_mirror_list, node) {
struct amd_sched_fence *s_fence = s_job->s_fence;
struct fence *fence = sched->ops->run_job(s_job);
if (fence) {
s_fence->parent = fence_get(fence);
r = fence_add_callback(fence, &s_fence->cb,
amd_sched_process_job);
if (r == -ENOENT)
amd_sched_process_job(fence, &s_fence->cb);
else if (r)
DRM_ERROR("fence add callback failed (%d)\n",
r);
fence_put(fence);
} else {
DRM_ERROR("Failed to run job!\n");
amd_sched_process_job(NULL, &s_fence->cb);
}
}
spin_unlock(&sched->job_list_lock);
}
/**
* Submit a job to the job queue
*

1
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
View File

@ -154,4 +154,5 @@ int amd_sched_job_init(struct amd_sched_job *job,
struct amd_sched_entity *entity,
void *owner);
void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched);
void amd_sched_job_recovery(struct amd_gpu_scheduler *sched);
#endif