Add a new function to update job dependencies from a resv obj.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/scheduler/sched_main.c | 49 ++++++++++++++++++--------
include/drm/gpu_scheduler.h | 5 +++
2 files changed, 39 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index e0ab14e0fb6b..6e2cd0f906b2 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -685,32 +685,28 @@ int drm_sched_job_add_dependency(struct drm_sched_job *job,
EXPORT_SYMBOL(drm_sched_job_add_dependency);
/**
- * drm_sched_job_add_implicit_dependencies - adds implicit dependencies as job
- * dependencies
+ * drm_sched_job_add_resv_dependencies - add all fences from the resv to the job
* @job: scheduler job to add the dependencies to
- * @obj: the gem object to add new dependencies from.
- * @write: whether the job might write the object (so we need to depend on
- * shared fences in the reservation object).
+ * @resv: the dma_resv object to get the fences from
+ * @usage: the dma_resv_usage to use to filter the fences
*
- * This should be called after drm_gem_lock_reservations() on your array of
- * GEM objects used in the job but before updating the reservations with your
- * own 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_implicit_dependencies(struct drm_sched_job *job,
- struct drm_gem_object *obj,
- bool write)
+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(obj->resv);
+ dma_resv_assert_held(resv);
- dma_resv_for_each_fence(&cursor, obj->resv, dma_resv_usage_rw(write),
- fence) {
+ 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);
@@ -721,8 +717,31 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
}
return 0;
}
-EXPORT_SYMBOL(drm_sched_job_add_implicit_dependencies);
+EXPORT_SYMBOL(drm_sched_job_add_resv_dependencies);
+/**
+ * drm_sched_job_add_implicit_dependencies - adds implicit dependencies as job
+ * dependencies
+ * @job: scheduler job to add the dependencies to
+ * @obj: the gem object to add new dependencies from.
+ * @write: whether the job might write the object (so we need to depend on
+ * shared fences in the reservation object).
+ *
+ * This should be called after drm_gem_lock_reservations() on your array of
+ * GEM objects used in the job but before updating the reservations with your
+ * own fences.
+ *
+ * Returns:
+ * 0 on success, or an error on failing to expand the array.
+ */
+int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job,
+ struct drm_gem_object *obj,
+ bool write)
+{
+ 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
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index f01d14b231ed..2a6e261ea01e 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -41,6 +41,8 @@
*/
#define DRM_SCHED_FENCE_DONT_PIPELINE DMA_FENCE_FLAG_USER_BITS
+enum dma_resv_usage;
+struct dma_resv;
struct drm_gem_object;
struct drm_gpu_scheduler;
@@ -483,6 +485,9 @@ 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);
--
2.25.1
