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-rw-r--r--drivers/gpu/drm/scheduler/sched_main.c29
-rw-r--r--include/drm/gpu_scheduler.h6
2 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 0e4378420271..9b16480686f6 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -53,6 +53,7 @@
#include <drm/drm_print.h>
#include <drm/drm_gem.h>
+#include <drm/drm_syncobj.h>
#include <drm/gpu_scheduler.h>
#include <drm/spsc_queue.h>
@@ -719,6 +720,34 @@ int drm_sched_job_add_dependency(struct drm_sched_job *job,
EXPORT_SYMBOL(drm_sched_job_add_dependency);
/**
+ * drm_sched_job_add_syncobj_dependency - adds a syncobj's fence as a job dependency
+ * @job: scheduler job to add the dependencies to
+ * @file_private: drm file private pointer
+ * @handle: syncobj handle to lookup
+ * @point: timeline point
+ *
+ * This adds the fence matching the given syncobj to @job.
+ *
+ * Returns:
+ * 0 on success, or an error on failing to expand the array.
+ */
+int drm_sched_job_add_syncobj_dependency(struct drm_sched_job *job,
+ struct drm_file *file,
+ u32 handle,
+ u32 point)
+{
+ struct dma_fence *fence;
+ int ret;
+
+ ret = drm_syncobj_find_fence(file, handle, point, 0, &fence);
+ if (ret)
+ return ret;
+
+ return drm_sched_job_add_dependency(job, fence);
+}
+EXPORT_SYMBOL(drm_sched_job_add_syncobj_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
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index 9935d1e2ff69..4cc54f8b57b4 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -48,6 +48,8 @@ struct drm_gem_object;
struct drm_gpu_scheduler;
struct drm_sched_rq;
+struct drm_file;
+
/* These are often used as an (initial) index
* to an array, and as such should start at 0.
*/
@@ -515,6 +517,10 @@ 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_syncobj_dependency(struct drm_sched_job *job,
+ struct drm_file *file,
+ u32 handle,
+ u32 point);
int drm_sched_job_add_resv_dependencies(struct drm_sched_job *job,
struct dma_resv *resv,
enum dma_resv_usage usage);