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drm/scheduler: add drm_sched_job_add_resv_dependencies

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Add a new function to update job dependencies from a resv obj.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221014084641.128280-3-christian.koenig@amd.com
This commit is contained in:
Christian König 2022-09-28 10:17:40 +02:00
parent 5345b86c2a
commit 4d5230b50d
2 changed files with 42 additions and 18 deletions
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55
drivers/gpu/drm/scheduler/sched_main.c
View File

@ -772,6 +772,41 @@ int drm_sched_job_add_dependency(struct drm_sched_job *job,
}
EXPORT_SYMBOL(drm_sched_job_add_dependency);
/**
* drm_sched_job_add_resv_dependencies - add all fences from the resv to the job
* @job: scheduler job to add the dependencies to
* @resv: the dma_resv object to get the fences from
* @usage: the dma_resv_usage to use to filter the fences
*
* This adds all fences matching the given usage from @resv to @job.
* Must be called with the @resv lock held.
*
* Returns:
* 0 on success, or an error on failing to expand the array.
*/
int drm_sched_job_add_resv_dependencies(struct drm_sched_job *job,
struct dma_resv *resv,
enum dma_resv_usage usage)
{
struct dma_resv_iter cursor;
struct dma_fence *fence;
int ret;
dma_resv_assert_held(resv);
dma_resv_for_each_fence(&cursor, resv, usage, fence) {
/* Make sure to grab an additional ref on the added fence */
dma_fence_get(fence);
ret = drm_sched_job_add_dependency(job, fence);
if (ret) {
dma_fence_put(fence);
return ret;
}
}
return 0;
}
EXPORT_SYMBOL(drm_sched_job_add_resv_dependencies);
/**
* drm_sched_job_add_implicit_dependencies - adds implicit dependencies as job
* dependencies
@ -791,27 +826,11 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
struct drm_gem_object *obj,
bool write)
{
struct dma_resv_iter cursor;
struct dma_fence *fence;
int ret;
dma_resv_assert_held(obj->resv);
dma_resv_for_each_fence(&cursor, obj->resv, dma_resv_usage_rw(write),
fence) {
/* Make sure to grab an additional ref on the added fence */
dma_fence_get(fence);
ret = drm_sched_job_add_dependency(job, fence);
if (ret) {
dma_fence_put(fence);
return ret;
}
}
return 0;
return drm_sched_job_add_resv_dependencies(job, obj->resv,
dma_resv_usage_rw(write));
}
EXPORT_SYMBOL(drm_sched_job_add_implicit_dependencies);
/**
* drm_sched_job_cleanup - clean up scheduler job resources
* @job: scheduler job to clean up

5
include/drm/gpu_scheduler.h
View File

@ -32,6 +32,8 @@
#define MAX_WAIT_SCHED_ENTITY_Q_EMPTY msecs_to_jiffies(1000)
enum dma_resv_usage;
struct dma_resv;
struct drm_gem_object;
struct drm_gpu_scheduler;
@ -505,6 +507,9 @@ int drm_sched_job_init(struct drm_sched_job *job,
void drm_sched_job_arm(struct drm_sched_job *job);
int drm_sched_job_add_dependency(struct drm_sched_job *job,
struct dma_fence *fence);
int drm_sched_job_add_resv_dependencies(struct drm_sched_job *job,
struct dma_resv *resv,
enum dma_resv_usage usage);
int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
struct drm_gem_object *obj,
bool write);