[PATCH v9 00/10] Improve gpu_scheduler trace events + UAPI

[PATCH v9 00/10] Improve gpu_scheduler trace events + UAPI

[Pierre-Eric Pelloux-Prayer]

Hi,

The initial goal of this series was to improve the drm and amdgpu
trace events to be able to expose more of the inner workings of
the scheduler and drivers to developers via tools.

Then, the series evolved to become focused only on gpu_scheduler.
The changes around vblank events will be part of a different
series, as well as the amdgpu ones.

Moreover Sima suggested to make some trace events stable uAPI,
so tools can rely on them long term.

The first patches extend and cleanup the gpu scheduler events,
then add a documentation entry in drm-uapi.rst.

The last 2 patches are new in v8. One is based on a suggestion
from Tvrtko and gets rid of drm_sched_job::id. The other is a
cleanup of amdgpu trace events to use the fence=%llu:%llu format.

The drm_sched_job patches don't affect gpuvis which has code to parse
the gpu_scheduler events but these events are not enabled.

Changes since v8:
* swapped patches 8 & 9
* rebased on drm-next

Changes since v7:
* uint64_t -> u64
* reworked dependencies tracing (Tvrtko)
* use common name prefix for all events (Tvrtko)
* dropped drm_sched_job::id (Tvrtko)

Useful links:
- userspace tool using the updated events:
https://gitlab.freedesktop.org/tomstdenis/umr/-/merge_requests/37
- v8:
https://lists.freedesktop.org/archives/dri-devel/2025-March/496781.html

Pierre-Eric Pelloux-Prayer (10):
  drm/debugfs: output client_id in in drm_clients_info
  drm/sched: store the drm client_id in drm_sched_fence
  drm/sched: add device name to the drm_sched_process_job event
  drm/sched: cleanup gpu_scheduler trace events
  drm/sched: trace dependencies for gpu jobs
  drm/sched: add the drm_client_id to the drm_sched_run/exec_job events
  drm/sched: cleanup event names
  drm: get rid of drm_sched_job::id
  drm/doc: document some tracepoints as uAPI
  drm/amdgpu: update trace format to match gpu_scheduler_trace

 Documentation/gpu/drm-uapi.rst                |  19 ++++
 drivers/accel/amdxdna/aie2_ctx.c              |   3 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c    |   2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |   3 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c       |   8 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.h       |   3 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h     |  32 +++---
 drivers/gpu/drm/drm_debugfs.c                 |  10 +-
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c  |   2 +-
 drivers/gpu/drm/imagination/pvr_job.c         |   2 +-
 drivers/gpu/drm/imagination/pvr_queue.c       |   5 +-
 drivers/gpu/drm/imagination/pvr_queue.h       |   2 +-
 drivers/gpu/drm/lima/lima_gem.c               |   2 +-
 drivers/gpu/drm/lima/lima_sched.c             |   6 +-
 drivers/gpu/drm/lima/lima_sched.h             |   3 +-
 drivers/gpu/drm/msm/msm_gem_submit.c          |   8 +-
 drivers/gpu/drm/nouveau/nouveau_sched.c       |   3 +-
 drivers/gpu/drm/panfrost/panfrost_drv.c       |   2 +-
 drivers/gpu/drm/panthor/panthor_drv.c         |   3 +-
 drivers/gpu/drm/panthor/panthor_mmu.c         |   2 +-
 drivers/gpu/drm/panthor/panthor_sched.c       |   5 +-
 drivers/gpu/drm/panthor/panthor_sched.h       |   3 +-
 .../gpu/drm/scheduler/gpu_scheduler_trace.h   | 100 +++++++++++++-----
 drivers/gpu/drm/scheduler/sched_entity.c      |  16 ++-
 drivers/gpu/drm/scheduler/sched_fence.c       |   4 +-
 drivers/gpu/drm/scheduler/sched_internal.h    |   2 +-
 drivers/gpu/drm/scheduler/sched_main.c        |  11 +-
 .../gpu/drm/scheduler/tests/mock_scheduler.c  |   2 +-
 drivers/gpu/drm/v3d/v3d_submit.c              |   2 +-
 drivers/gpu/drm/xe/xe_sched_job.c             |   3 +-
 include/drm/gpu_scheduler.h                   |  13 ++-
 31 files changed, 184 insertions(+), 97 deletions(-)

-- 
2.43.0

[PATCH v9 02/10] drm/sched: store the drm client_id in drm_sched_fence

[Pierre-Eric Pelloux-Prayer]

This will be used in a later commit to trace the drm client_id in
some of the gpu_scheduler trace events.

This requires changing all the users of drm_sched_job_init to
add an extra parameter.

The newly added drm_client_id field in the drm_sched_fence is a bit
of a duplicate of the owner one. One suggestion I received was to
merge those 2 fields - this can't be done right now as amdgpu uses
some special values (AMDGPU_FENCE_OWNER_*) that can't really be
translated into a client id. Christian is working on getting rid of
those; when it's done we should be able to squash owner/drm_client_id
together.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
---
 drivers/accel/amdxdna/aie2_ctx.c                 |  3 ++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c       |  2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |  3 ++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  8 +++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |  3 ++-
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c     |  2 +-
 drivers/gpu/drm/imagination/pvr_job.c            |  2 +-
 drivers/gpu/drm/imagination/pvr_queue.c          |  5 +++--
 drivers/gpu/drm/imagination/pvr_queue.h          |  2 +-
 drivers/gpu/drm/lima/lima_gem.c                  |  2 +-
 drivers/gpu/drm/lima/lima_sched.c                |  6 ++++--
 drivers/gpu/drm/lima/lima_sched.h                |  3 ++-
 drivers/gpu/drm/msm/msm_gem_submit.c             |  8 +++++---
 drivers/gpu/drm/nouveau/nouveau_sched.c          |  3 ++-
 drivers/gpu/drm/panfrost/panfrost_drv.c          |  2 +-
 drivers/gpu/drm/panthor/panthor_drv.c            |  3 ++-
 drivers/gpu/drm/panthor/panthor_mmu.c            |  2 +-
 drivers/gpu/drm/panthor/panthor_sched.c          |  5 +++--
 drivers/gpu/drm/panthor/panthor_sched.h          |  3 ++-
 drivers/gpu/drm/scheduler/sched_fence.c          |  4 +++-
 drivers/gpu/drm/scheduler/sched_internal.h       |  2 +-
 drivers/gpu/drm/scheduler/sched_main.c           |  6 ++++--
 drivers/gpu/drm/scheduler/tests/mock_scheduler.c |  2 +-
 drivers/gpu/drm/v3d/v3d_submit.c                 |  2 +-
 drivers/gpu/drm/xe/xe_sched_job.c                |  3 ++-
 include/drm/gpu_scheduler.h                      | 10 +++++++++-
 26 files changed, 62 insertions(+), 34 deletions(-)

diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
index e04549f64d69..3e38a5f637ea 100644
--- a/drivers/accel/amdxdna/aie2_ctx.c
+++ b/drivers/accel/amdxdna/aie2_ctx.c
@@ -848,7 +848,8 @@ int aie2_cmd_submit(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
 		goto up_sem;
 	}
 
-	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity, 1, hwctx);
+	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity, 1, hwctx,
+				 hwctx->client->filp->client_id);
 	if (ret) {
 		XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
 		goto free_chain;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 4cec3a873995..1a77ba7036c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -639,7 +639,7 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
 		goto err;
 	}
 
-	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
+	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job, 0);
 	if (ret)
 		goto err;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 82df06a72ee0..5a231b997d65 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -293,7 +293,8 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
 
 	for (i = 0; i < p->gang_size; ++i) {
 		ret = amdgpu_job_alloc(p->adev, vm, p->entities[i], vm,
-				       num_ibs[i], &p->jobs[i]);
+				       num_ibs[i], &p->jobs[i],
+				       p->filp->client_id);
 		if (ret)
 			goto free_all_kdata;
 		p->jobs[i]->enforce_isolation = p->adev->enforce_isolation[fpriv->xcp_id];
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index acb21fc8b3ce..75262ce8db27 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -204,7 +204,8 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
 
 int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		     struct drm_sched_entity *entity, void *owner,
-		     unsigned int num_ibs, struct amdgpu_job **job)
+		     unsigned int num_ibs, struct amdgpu_job **job,
+		     u64 drm_client_id)
 {
 	if (num_ibs == 0)
 		return -EINVAL;
@@ -222,7 +223,8 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	if (!entity)
 		return 0;
 
-	return drm_sched_job_init(&(*job)->base, entity, 1, owner);
+	return drm_sched_job_init(&(*job)->base, entity, 1, owner,
+				  drm_client_id);
 }
 
 int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
@@ -232,7 +234,7 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
 {
 	int r;
 
-	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
+	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job, 0);
 	if (r)
 		return r;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
index ce6b9ba967ff..5a8bc6342222 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
@@ -90,7 +90,8 @@ static inline struct amdgpu_ring *amdgpu_job_ring(struct amdgpu_job *job)
 
 int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		     struct drm_sched_entity *entity, void *owner,
-		     unsigned int num_ibs, struct amdgpu_job **job);
+		     unsigned int num_ibs, struct amdgpu_job **job,
+		     u64 drm_client_id);
 int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
 			     struct drm_sched_entity *entity, void *owner,
 			     size_t size, enum amdgpu_ib_pool_type pool_type,
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 3c0a5c3e0e3d..76c742328edb 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -534,7 +534,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 
 	ret = drm_sched_job_init(&submit->sched_job,
 				 &ctx->sched_entity[args->pipe],
-				 1, submit->ctx);
+				 1, submit->ctx, file->client_id);
 	if (ret)
 		goto err_submit_put;
 
diff --git a/drivers/gpu/drm/imagination/pvr_job.c b/drivers/gpu/drm/imagination/pvr_job.c
index 59b334d094fa..7564b0f21b42 100644
--- a/drivers/gpu/drm/imagination/pvr_job.c
+++ b/drivers/gpu/drm/imagination/pvr_job.c
@@ -446,7 +446,7 @@ create_job(struct pvr_device *pvr_dev,
 	if (err)
 		goto err_put_job;
 
-	err = pvr_queue_job_init(job);
+	err = pvr_queue_job_init(job, pvr_file->file->client_id);
 	if (err)
 		goto err_put_job;
 
diff --git a/drivers/gpu/drm/imagination/pvr_queue.c b/drivers/gpu/drm/imagination/pvr_queue.c
index 5e9bc0992824..5a41ee79fed6 100644
--- a/drivers/gpu/drm/imagination/pvr_queue.c
+++ b/drivers/gpu/drm/imagination/pvr_queue.c
@@ -1073,6 +1073,7 @@ static int pvr_queue_cleanup_fw_context(struct pvr_queue *queue)
 /**
  * pvr_queue_job_init() - Initialize queue related fields in a pvr_job object.
  * @job: The job to initialize.
+ * @drm_client_id: drm_file.client_id submitting the job
  *
  * Bind the job to a queue and allocate memory to guarantee pvr_queue_job_arm()
  * and pvr_queue_job_push() can't fail. We also make sure the context type is
@@ -1082,7 +1083,7 @@ static int pvr_queue_cleanup_fw_context(struct pvr_queue *queue)
  *  * 0 on success, or
  *  * An error code if something failed.
  */
-int pvr_queue_job_init(struct pvr_job *job)
+int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id)
 {
 	/* Fragment jobs need at least one native fence wait on the geometry job fence. */
 	u32 min_native_dep_count = job->type == DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
@@ -1099,7 +1100,7 @@ int pvr_queue_job_init(struct pvr_job *job)
 	if (!pvr_cccb_cmdseq_can_fit(&queue->cccb, job_cmds_size(job, min_native_dep_count)))
 		return -E2BIG;
 
-	err = drm_sched_job_init(&job->base, &queue->entity, 1, THIS_MODULE);
+	err = drm_sched_job_init(&job->base, &queue->entity, 1, THIS_MODULE, drm_client_id);
 	if (err)
 		return err;
 
diff --git a/drivers/gpu/drm/imagination/pvr_queue.h b/drivers/gpu/drm/imagination/pvr_queue.h
index 93fe9ac9f58c..fc1986d73fc8 100644
--- a/drivers/gpu/drm/imagination/pvr_queue.h
+++ b/drivers/gpu/drm/imagination/pvr_queue.h
@@ -143,7 +143,7 @@ struct pvr_queue {
 
 bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
 
-int pvr_queue_job_init(struct pvr_job *job);
+int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id);
 
 void pvr_queue_job_cleanup(struct pvr_job *job);
 
diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index 5deec673c11e..9722b847a539 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -341,7 +341,7 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
 
 	err = lima_sched_task_init(
 		submit->task, submit->ctx->context + submit->pipe,
-		bos, submit->nr_bos, vm);
+		bos, submit->nr_bos, vm, file->client_id);
 	if (err)
 		goto err_out1;
 
diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
index 7934098e651b..954f4325b859 100644
--- a/drivers/gpu/drm/lima/lima_sched.c
+++ b/drivers/gpu/drm/lima/lima_sched.c
@@ -113,7 +113,8 @@ static inline struct lima_sched_pipe *to_lima_pipe(struct drm_gpu_scheduler *sch
 int lima_sched_task_init(struct lima_sched_task *task,
 			 struct lima_sched_context *context,
 			 struct lima_bo **bos, int num_bos,
-			 struct lima_vm *vm)
+			 struct lima_vm *vm,
+			 u64 drm_client_id)
 {
 	int err, i;
 
@@ -124,7 +125,8 @@ int lima_sched_task_init(struct lima_sched_task *task,
 	for (i = 0; i < num_bos; i++)
 		drm_gem_object_get(&bos[i]->base.base);
 
-	err = drm_sched_job_init(&task->base, &context->base, 1, vm);
+	err = drm_sched_job_init(&task->base, &context->base, 1, vm,
+				 drm_client_id);
 	if (err) {
 		kfree(task->bos);
 		return err;
diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h
index 85b23ba901d5..1a08faf8a529 100644
--- a/drivers/gpu/drm/lima/lima_sched.h
+++ b/drivers/gpu/drm/lima/lima_sched.h
@@ -88,7 +88,8 @@ struct lima_sched_pipe {
 int lima_sched_task_init(struct lima_sched_task *task,
 			 struct lima_sched_context *context,
 			 struct lima_bo **bos, int num_bos,
-			 struct lima_vm *vm);
+			 struct lima_vm *vm,
+			 u64 drm_client_id);
 void lima_sched_task_fini(struct lima_sched_task *task);
 
 int lima_sched_context_init(struct lima_sched_pipe *pipe,
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 3e9aa2cc38ef..d9be0fe3d674 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -30,7 +30,7 @@
 static struct msm_gem_submit *submit_create(struct drm_device *dev,
 		struct msm_gpu *gpu,
 		struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
-		uint32_t nr_cmds)
+		uint32_t nr_cmds, u64 drm_client_id)
 {
 	static atomic_t ident = ATOMIC_INIT(0);
 	struct msm_gem_submit *submit;
@@ -54,7 +54,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
 		return ERR_PTR(ret);
 	}
 
-	ret = drm_sched_job_init(&submit->base, queue->entity, 1, queue);
+	ret = drm_sched_job_init(&submit->base, queue->entity, 1, queue,
+				 drm_client_id);
 	if (ret) {
 		kfree(submit->hw_fence);
 		kfree(submit);
@@ -693,7 +694,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 		}
 	}
 
-	submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds);
+	submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds,
+			       file->client_id);
 	if (IS_ERR(submit)) {
 		ret = PTR_ERR(submit);
 		goto out_post_unlock;
diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c b/drivers/gpu/drm/nouveau/nouveau_sched.c
index d326e55d2d24..460a5fb02412 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sched.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
@@ -87,7 +87,8 @@ nouveau_job_init(struct nouveau_job *job,
 	}
 
 	ret = drm_sched_job_init(&job->base, &sched->entity,
-				 args->credits, NULL);
+				 args->credits, NULL,
+				 job->file_priv->client_id);
 	if (ret)
 		goto err_free_chains;
 
diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index b87f83e94eda..d5c2c6530ed8 100644
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -312,7 +312,7 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
 
 	ret = drm_sched_job_init(&job->base,
 				 &file_priv->sched_entity[slot],
-				 1, NULL);
+				 1, NULL, file->client_id);
 	if (ret)
 		goto out_put_job;
 
diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c
index 06fe46e32073..bd8e1900c919 100644
--- a/drivers/gpu/drm/panthor/panthor_drv.c
+++ b/drivers/gpu/drm/panthor/panthor_drv.c
@@ -989,7 +989,8 @@ static int panthor_ioctl_group_submit(struct drm_device *ddev, void *data,
 		const struct drm_panthor_queue_submit *qsubmit = &jobs_args[i];
 		struct drm_sched_job *job;
 
-		job = panthor_job_create(pfile, args->group_handle, qsubmit);
+		job = panthor_job_create(pfile, args->group_handle, qsubmit,
+					 file->client_id);
 		if (IS_ERR(job)) {
 			ret = PTR_ERR(job);
 			goto out_cleanup_submit_ctx;
diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c
index 12a02e28f50f..e0c79bd2d173 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -2516,7 +2516,7 @@ panthor_vm_bind_job_create(struct drm_file *file,
 	kref_init(&job->refcount);
 	job->vm = panthor_vm_get(vm);
 
-	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm);
+	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm, file->client_id);
 	if (ret)
 		goto err_put_job;
 
diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/panthor/panthor_sched.c
index 446ec780eb4a..2af860c9068a 100644
--- a/drivers/gpu/drm/panthor/panthor_sched.c
+++ b/drivers/gpu/drm/panthor/panthor_sched.c
@@ -3729,7 +3729,8 @@ struct panthor_vm *panthor_job_vm(struct drm_sched_job *sched_job)
 struct drm_sched_job *
 panthor_job_create(struct panthor_file *pfile,
 		   u16 group_handle,
-		   const struct drm_panthor_queue_submit *qsubmit)
+		   const struct drm_panthor_queue_submit *qsubmit,
+		   u64 drm_client_id)
 {
 	struct panthor_group_pool *gpool = pfile->groups;
 	struct panthor_job *job;
@@ -3801,7 +3802,7 @@ panthor_job_create(struct panthor_file *pfile,
 
 	ret = drm_sched_job_init(&job->base,
 				 &job->group->queues[job->queue_idx]->entity,
-				 credits, job->group);
+				 credits, job->group, drm_client_id);
 	if (ret)
 		goto err_put_job;
 
diff --git a/drivers/gpu/drm/panthor/panthor_sched.h b/drivers/gpu/drm/panthor/panthor_sched.h
index e650a445cf50..742b0b4ff3a3 100644
--- a/drivers/gpu/drm/panthor/panthor_sched.h
+++ b/drivers/gpu/drm/panthor/panthor_sched.h
@@ -29,7 +29,8 @@ int panthor_group_get_state(struct panthor_file *pfile,
 struct drm_sched_job *
 panthor_job_create(struct panthor_file *pfile,
 		   u16 group_handle,
-		   const struct drm_panthor_queue_submit *qsubmit);
+		   const struct drm_panthor_queue_submit *qsubmit,
+		   u64 drm_client_id);
 struct drm_sched_job *panthor_job_get(struct drm_sched_job *job);
 struct panthor_vm *panthor_job_vm(struct drm_sched_job *sched_job);
 void panthor_job_put(struct drm_sched_job *job);
diff --git a/drivers/gpu/drm/scheduler/sched_fence.c b/drivers/gpu/drm/scheduler/sched_fence.c
index e971528504a5..d208d384d38d 100644
--- a/drivers/gpu/drm/scheduler/sched_fence.c
+++ b/drivers/gpu/drm/scheduler/sched_fence.c
@@ -206,7 +206,8 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f)
 EXPORT_SYMBOL(to_drm_sched_fence);
 
 struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *entity,
-					      void *owner)
+					      void *owner,
+					      u64 drm_client_id)
 {
 	struct drm_sched_fence *fence = NULL;
 
@@ -215,6 +216,7 @@ struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *entity,
 		return NULL;
 
 	fence->owner = owner;
+	fence->drm_client_id = drm_client_id;
 	spin_lock_init(&fence->lock);
 
 	return fence;
diff --git a/drivers/gpu/drm/scheduler/sched_internal.h b/drivers/gpu/drm/scheduler/sched_internal.h
index 599cf6e1bb74..7ea5a6736f98 100644
--- a/drivers/gpu/drm/scheduler/sched_internal.h
+++ b/drivers/gpu/drm/scheduler/sched_internal.h
@@ -24,7 +24,7 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity);
 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity);
 
 struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *s_entity,
-					      void *owner);
+					      void *owner, u64 drm_client_id);
 void drm_sched_fence_init(struct drm_sched_fence *fence,
 			  struct drm_sched_entity *entity);
 void drm_sched_fence_free(struct drm_sched_fence *fence);
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 829579c41c6b..60611618f3ab 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -764,6 +764,7 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
  * @credits: the number of credits this job contributes to the schedulers
  * credit limit
  * @owner: job owner for debugging
+ * @drm_client_id: drm_file.client_id of the owner
  *
  * Refer to drm_sched_entity_push_job() documentation
  * for locking considerations.
@@ -784,7 +785,8 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
  */
 int drm_sched_job_init(struct drm_sched_job *job,
 		       struct drm_sched_entity *entity,
-		       u32 credits, void *owner)
+		       u32 credits, void *owner,
+		       uint64_t drm_client_id)
 {
 	if (!entity->rq) {
 		/* This will most likely be followed by missing frames
@@ -810,7 +812,7 @@ int drm_sched_job_init(struct drm_sched_job *job,
 
 	job->entity = entity;
 	job->credits = credits;
-	job->s_fence = drm_sched_fence_alloc(entity, owner);
+	job->s_fence = drm_sched_fence_alloc(entity, owner, drm_client_id);
 	if (!job->s_fence)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
index f999c8859cf7..09ffbdb32d76 100644
--- a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
+++ b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
@@ -35,7 +35,7 @@ drm_mock_sched_entity_new(struct kunit *test,
 	ret = drm_sched_entity_init(&entity->base,
 				    priority,
 				    &drm_sched, 1,
-				    NULL);
+				    NULL, 1);
 	KUNIT_ASSERT_EQ(test, ret, 0);
 
 	entity->test = test;
diff --git a/drivers/gpu/drm/v3d/v3d_submit.c b/drivers/gpu/drm/v3d/v3d_submit.c
index 4ff5de46fb22..5171ffe9012d 100644
--- a/drivers/gpu/drm/v3d/v3d_submit.c
+++ b/drivers/gpu/drm/v3d/v3d_submit.c
@@ -169,7 +169,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
 	job->file = file_priv;
 
 	ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue],
-				 1, v3d_priv);
+				 1, v3d_priv, file_priv->client_id);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c
index 1905ca590965..f4679cb9a56b 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.c
+++ b/drivers/gpu/drm/xe/xe_sched_job.c
@@ -113,7 +113,8 @@ struct xe_sched_job *xe_sched_job_create(struct xe_exec_queue *q,
 	kref_init(&job->refcount);
 	xe_exec_queue_get(job->q);
 
-	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL);
+	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
+				 q->xef->drm->client_id);
 	if (err)
 		goto err_free;
 
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index 1a7e377d4cbb..6fe3b4c0cffb 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -305,6 +305,13 @@ struct drm_sched_fence {
          * @owner: job owner for debugging
          */
 	void				*owner;
+
+	/**
+	 * @drm_client_id:
+	 *
+	 * The client_id of the drm_file which owns the job.
+	 */
+	uint64_t			drm_client_id;
 };
 
 struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
@@ -629,7 +636,8 @@ drm_sched_pick_best(struct drm_gpu_scheduler **sched_list,
 
 int drm_sched_job_init(struct drm_sched_job *job,
 		       struct drm_sched_entity *entity,
-		       u32 credits, void *owner);
+		       u32 credits, void *owner,
+		       u64 drm_client_id);
 void drm_sched_job_arm(struct drm_sched_job *job);
 void drm_sched_entity_push_job(struct drm_sched_job *sched_job);
 int drm_sched_job_add_dependency(struct drm_sched_job *job,
-- 
2.43.0

Re: [PATCH v9 00/10] Improve gpu_scheduler trace events + UAPI

[Pierre-Eric Pelloux-Prayer]

Hi Philipp,

Did you get a chance to take a look at the latest revision of this series?

Thanks,
Pierre-Eric

Le 24/04/2025 à 10:38, Pierre-Eric Pelloux-Prayer a écrit :
> Hi,
> 
> The initial goal of this series was to improve the drm and amdgpu
> trace events to be able to expose more of the inner workings of
> the scheduler and drivers to developers via tools.
> 
> Then, the series evolved to become focused only on gpu_scheduler.
> The changes around vblank events will be part of a different
> series, as well as the amdgpu ones.
> 
> Moreover Sima suggested to make some trace events stable uAPI,
> so tools can rely on them long term.
> 
> The first patches extend and cleanup the gpu scheduler events,
> then add a documentation entry in drm-uapi.rst.
> 
> The last 2 patches are new in v8. One is based on a suggestion
> from Tvrtko and gets rid of drm_sched_job::id. The other is a
> cleanup of amdgpu trace events to use the fence=%llu:%llu format.
> 
> The drm_sched_job patches don't affect gpuvis which has code to parse
> the gpu_scheduler events but these events are not enabled.
> 
> Changes since v8:
> * swapped patches 8 & 9
> * rebased on drm-next
> 
> Changes since v7:
> * uint64_t -> u64
> * reworked dependencies tracing (Tvrtko)
> * use common name prefix for all events (Tvrtko)
> * dropped drm_sched_job::id (Tvrtko)
> 
> Useful links:
> - userspace tool using the updated events:
> https://gitlab.freedesktop.org/tomstdenis/umr/-/merge_requests/37
> - v8:
> https://lists.freedesktop.org/archives/dri-devel/2025-March/496781.html
> 
> Pierre-Eric Pelloux-Prayer (10):
>    drm/debugfs: output client_id in in drm_clients_info
>    drm/sched: store the drm client_id in drm_sched_fence
>    drm/sched: add device name to the drm_sched_process_job event
>    drm/sched: cleanup gpu_scheduler trace events
>    drm/sched: trace dependencies for gpu jobs
>    drm/sched: add the drm_client_id to the drm_sched_run/exec_job events
>    drm/sched: cleanup event names
>    drm: get rid of drm_sched_job::id
>    drm/doc: document some tracepoints as uAPI
>    drm/amdgpu: update trace format to match gpu_scheduler_trace
> 
>   Documentation/gpu/drm-uapi.rst                |  19 ++++
>   drivers/accel/amdxdna/aie2_ctx.c              |   3 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c    |   2 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |   3 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c       |   8 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.h       |   3 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h     |  32 +++---
>   drivers/gpu/drm/drm_debugfs.c                 |  10 +-
>   drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c  |   2 +-
>   drivers/gpu/drm/imagination/pvr_job.c         |   2 +-
>   drivers/gpu/drm/imagination/pvr_queue.c       |   5 +-
>   drivers/gpu/drm/imagination/pvr_queue.h       |   2 +-
>   drivers/gpu/drm/lima/lima_gem.c               |   2 +-
>   drivers/gpu/drm/lima/lima_sched.c             |   6 +-
>   drivers/gpu/drm/lima/lima_sched.h             |   3 +-
>   drivers/gpu/drm/msm/msm_gem_submit.c          |   8 +-
>   drivers/gpu/drm/nouveau/nouveau_sched.c       |   3 +-
>   drivers/gpu/drm/panfrost/panfrost_drv.c       |   2 +-
>   drivers/gpu/drm/panthor/panthor_drv.c         |   3 +-
>   drivers/gpu/drm/panthor/panthor_mmu.c         |   2 +-
>   drivers/gpu/drm/panthor/panthor_sched.c       |   5 +-
>   drivers/gpu/drm/panthor/panthor_sched.h       |   3 +-
>   .../gpu/drm/scheduler/gpu_scheduler_trace.h   | 100 +++++++++++++-----
>   drivers/gpu/drm/scheduler/sched_entity.c      |  16 ++-
>   drivers/gpu/drm/scheduler/sched_fence.c       |   4 +-
>   drivers/gpu/drm/scheduler/sched_internal.h    |   2 +-
>   drivers/gpu/drm/scheduler/sched_main.c        |  11 +-
>   .../gpu/drm/scheduler/tests/mock_scheduler.c  |   2 +-
>   drivers/gpu/drm/v3d/v3d_submit.c              |   2 +-
>   drivers/gpu/drm/xe/xe_sched_job.c             |   3 +-
>   include/drm/gpu_scheduler.h                   |  13 ++-
>   31 files changed, 184 insertions(+), 97 deletions(-)
> 

Re: [PATCH v9 02/10] drm/sched: store the drm client_id in drm_sched_fence

[Philipp Stanner]

On Thu, 2025-04-24 at 10:38 +0200, Pierre-Eric Pelloux-Prayer wrote:
> This will be used in a later commit to trace the drm client_id in
> some of the gpu_scheduler trace events.
> 
> This requires changing all the users of drm_sched_job_init to
> add an extra parameter.
> 
> The newly added drm_client_id field in the drm_sched_fence is a bit
> of a duplicate of the owner one. One suggestion I received was to
> merge those 2 fields - this can't be done right now as amdgpu uses
> some special values (AMDGPU_FENCE_OWNER_*) that can't really be
> translated into a client id. Christian is working on getting rid of
> those; when it's done we should be able to squash owner/drm_client_id
> together.
> 
> Reviewed-by: Christian König <christian.koenig@amd.com>
> Signed-off-by: Pierre-Eric Pelloux-Prayer
> <pierre-eric.pelloux-prayer@amd.com>
> ---
>  drivers/accel/amdxdna/aie2_ctx.c                 |  3 ++-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c       |  2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |  3 ++-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  8 +++++---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |  3 ++-
>  drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c     |  2 +-
>  drivers/gpu/drm/imagination/pvr_job.c            |  2 +-
>  drivers/gpu/drm/imagination/pvr_queue.c          |  5 +++--
>  drivers/gpu/drm/imagination/paac             |  8 +++++---
>  drivers/gpu/drm/nouveau/nouveau_sched.c          |  3 ++-
>  drivers/gpu/drm/panfrost/panfrost_drv.c          |  2 +-
>  drivers/gpu/drm/panthor/panthor_drv.c            |  3 ++-
>  drivers/gpu/drm/panthor/panthor_mmu.c            |  2 +-
>  drivers/gpu/drm/panthor/panthor_sched.c          |  5 +++--
>  drivers/gpu/drm/panthor/panthor_sched.h          |  3 ++-
>  drivers/gpu/drm/scheduler/sched_fence.c          |  4 ++
>  drivers/gpu/drm/scheduler/sched_internal.h       |  2 +-
>  drivers/gpu/drm/scheduler/sched_main.c           |  6 ++++--
>  drivers/gpu/drm/scheduler/tests/mock_scheduler.c |  2 +-
>  drivers/gpu/drm/v3d/v3d_submit.c                 |  2 +-
>  drivers/gpu/drm/xe/xe_sched_job.c                |  3 ++-
>  include/drm/gpu_scheduler.h                      | 10 +++++++++-
>  26 files changed, 62 insertions(+), 34 deletions(-)

I think last time I asked about what your merge plan for this is, since
it touches so many drivers. Should I take that?

Besides one comment below, scheduler bits look fine.

> 
> diff --git a/drivers/accel/amdxdna/aie2_ctx.c
> b/drivers/accel/amdxdna/aie2_ctx.c
> index e04549f64d69..3e38a5f637ea 100644
> --- a/drivers/accel/amdxdna/aie2_ctx.c
> +++ b/drivers/accel/amdxdna/aie2_ctx.c
> @@ -848,7 +848,8 @@ int aie2_cmd_submit(struct amdxdna_hwctx *hwctx,
> struct amdxdna_sched_job *job,
>  		goto up_sem;
>  	}
>  
> -	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
> 1, hwctx);
> +	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
> 1, hwctx,
> +				 hwctx->client->filp->client_id);
>  	if (ret) {
>  		XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
>  		goto free_chain;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> index 4cec3a873995..1a77ba7036c9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> @@ -639,7 +639,7 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device
> *adev,
>  		goto err;
>  	}
>  
> -	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
> +	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job, 0);
>  	if (ret)
>  		goto err;
>  
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index 82df06a72ee0..5a231b997d65 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -293,7 +293,8 @@ static int amdgpu_cs_pass1(struct
> amdgpu_cs_parser *p,
>  
>  	for (i = 0; i < p->gang_size; ++i) {
>  		ret = amdgpu_job_alloc(p->adev, vm, p->entities[i],
> vm,
> -				       num_ibs[i], &p->jobs[i]);
> +				       num_ibs[i], &p->jobs[i],
> +				       p->filp->client_id);
>  		if (ret)
>  			goto free_all_kdata;
>  		p->jobs[i]->enforce_isolation = p->adev-
> >enforce_isolation[fpriv->xcp_id];
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> index acb21fc8b3ce..75262ce8db27 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> @@ -204,7 +204,8 @@ static enum drm_gpu_sched_stat
> amdgpu_job_timedout(struct drm_sched_job *s_job)
>  
>  int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
> *vm,
>  		     struct drm_sched_entity *entity, void *owner,
> -		     unsigned int num_ibs, struct amdgpu_job **job)
> +		     unsigned int num_ibs, struct amdgpu_job **job,
> +		     u64 drm_client_id)
>  {
>  	if (num_ibs == 0)
>  		return -EINVAL;
> @@ -222,7 +223,8 @@ int amdgpu_job_alloc(struct amdgpu_device *adev,
> struct amdgpu_vm *vm,
>  	if (!entity)
>  		return 0;
>  
> -	return drm_sched_job_init(&(*job)->base, entity, 1, owner);
> +	return drm_sched_job_init(&(*job)->base, entity, 1, owner,
> +				  drm_client_id);
>  }
>  
>  int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
> @@ -232,7 +234,7 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device
> *adev,
>  {
>  	int r;
>  
> -	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
> +	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job, 0);
>  	if (r)
>  		return r;
>  
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> index ce6b9ba967ff..5a8bc6342222 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> @@ -90,7 +90,8 @@ static inline struct amdgpu_ring
> *amdgpu_job_ring(struct amdgpu_job *job)
>  
>  int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
> *vm,
>  		     struct drm_sched_entity *entity, void *owner,
> -		     unsigned int num_ibs, struct amdgpu_job **job);
> +		     unsigned int num_ibs, struct amdgpu_job **job,
> +		     u64 drm_client_id);
>  int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
>  			     struct drm_sched_entity *entity, void
> *owner,
>  			     size_t size, enum amdgpu_ib_pool_type
> pool_type,
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> index 3c0a5c3e0e3d..76c742328edb 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> @@ -534,7 +534,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device
> *dev, void *data,
>  
>  	ret = drm_sched_job_init(&submit->sched_job,
>  				 &ctx->sched_entity[args->pipe],
> -				 1, submit->ctx);
> +				 1, submit->ctx, file->client_id);
>  	if (ret)
>  		goto err_submit_put;
>  
> diff --git a/drivers/gpu/drm/imagination/pvr_job.c
> b/drivers/gpu/drm/imagination/pvr_job.c
> index 59b334d094fa..7564b0f21b42 100644
> --- a/drivers/gpu/drm/imagination/pvr_job.c
> +++ b/drivers/gpu/drm/imagination/pvr_job.c
> @@ -446,7 +446,7 @@ create_job(struct pvr_device *pvr_dev,
>  	if (err)
>  		goto err_put_job;
>  
> -	err = pvr_queue_job_init(job);
> +	err = pvr_queue_job_init(job, pvr_file->file->client_id);
>  	if (err)
>  		goto err_put_job;
>  
> diff --git a/drivers/gpu/drm/imagination/pvr_queue.c
> b/drivers/gpu/drm/imagination/pvr_queue.c
> index 5e9bc0992824..5a41ee79fed6 100644
> --- a/drivers/gpu/drm/imagination/pvr_queue.c
> +++ b/drivers/gpu/drm/imagination/pvr_queue.c
> @@ -1073,6 +1073,7 @@ static int pvr_queue_cleanup_fw_context(struct
> pvr_queue *queue)
>  /**
>   * pvr_queue_job_init() - Initialize queue related fields in a
> pvr_job object.
>   * @job: The job to initialize.
> + * @drm_client_id: drm_file.client_id submitting the job
>   *
>   * Bind the job to a queue and allocate memory to guarantee
> pvr_queue_job_arm()
>   * and pvr_queue_job_push() can't fail. We also make sure the
> context type is
> @@ -1082,7 +1083,7 @@ static int pvr_queue_cleanup_fw_context(struct
> pvr_queue *queue)
>   *  * 0 on success, or
>   *  * An error code if something failed.
>   */
> -int pvr_queue_job_init(struct pvr_job *job)
> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id)
>  {
>  	/* Fragment jobs need at least one native fence wait on the
> geometry job fence. */
>  	u32 min_native_dep_count = job->type ==
> DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
> @@ -1099,7 +1100,7 @@ int pvr_queue_job_init(struct pvr_job *job)
>  	if (!pvr_cccb_cmdseq_can_fit(&queue->cccb,
> job_cmds_size(job, min_native_dep_count)))
>  		return -E2BIG;
>  
> -	err = drm_sched_job_init(&job->base, &queue->entity, 1,
> THIS_MODULE);
> +	err = drm_sched_job_init(&job->base, &queue->entity, 1,
> THIS_MODULE, drm_client_id);
>  	if (err)
>  		return err;
>  
> diff --git a/drivers/gpu/drm/imagination/pvr_queue.h
> b/drivers/gpu/drm/imagination/pvr_queue.h
> index 93fe9ac9f58c..fc1986d73fc8 100644
> --- a/drivers/gpu/drm/imagination/pvr_queue.h
> +++ b/drivers/gpu/drm/imagination/pvr_queue.h
> @@ -143,7 +143,7 @@ struct pvr_queue {
>  
>  bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
>  
> -int pvr_queue_job_init(struct pvr_job *job);
> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id);
>  
>  void pvr_queue_job_cleanup(struct pvr_job *job);
>  
> diff --git a/drivers/gpu/drm/lima/lima_gem.c
> b/drivers/gpu/drm/lima/lima_gem.c
> index 5deec673c11e..9722b847a539 100644
> --- a/drivers/gpu/drm/lima/lima_gem.c
> +++ b/drivers/gpu/drm/lima/lima_gem.c
> @@ -341,7 +341,7 @@ int lima_gem_submit(struct drm_file *file, struct
> lima_submit *submit)
>  
>  	err = lima_sched_task_init(
>  		submit->task, submit->ctx->context + submit->pipe,
> -		bos, submit->nr_bos, vm);
> +		bos, submit->nr_bos, vm, file->client_id);
>  	if (err)
>  		goto err_out1;
>  
> diff --git a/drivers/gpu/drm/lima/lima_sched.c
> b/drivers/gpu/drm/lima/lima_sched.c
> index 7934098e651b..954f4325b859 100644
> --- a/drivers/gpu/drm/lima/lima_sched.c
> +++ b/drivers/gpu/drm/lima/lima_sched.c
> @@ -113,7 +113,8 @@ static inline struct lima_sched_pipe
> *to_lima_pipe(struct drm_gpu_scheduler *sch
>  int lima_sched_task_init(struct lima_sched_task *task,
>  			 struct lima_sched_context *context,
>  			 struct lima_bo **bos, int num_bos,
> -			 struct lima_vm *vm)
> +			 struct lima_vm *vm,
> +			 u64 drm_client_id)
>  {
>  	int err, i;
>  
> @@ -124,7 +125,8 @@ int lima_sched_task_init(struct lima_sched_task
> *task,
>  	for (i = 0; i < num_bos; i++)
>  		drm_gem_object_get(&bos[i]->base.base);
>  
> -	err = drm_sched_job_init(&task->base, &context->base, 1,
> vm);
> +	err = drm_sched_job_init(&task->base, &context->base, 1, vm,
> +				 drm_client_id);
>  	if (err) {
>  		kfree(task->bos);
>  		return err;
> diff --git a/drivers/gpu/drm/lima/lima_sched.h
> b/drivers/gpu/drm/lima/lima_sched.h
> index 85b23ba901d5..1a08faf8a529 100644
> --- a/drivers/gpu/drm/lima/lima_sched.h
> +++ b/drivers/gpu/drm/lima/lima_sched.h
> @@ -88,7 +88,8 @@ struct lima_sched_pipe {
>  int lima_sched_task_init(struct lima_sched_task *task,
>  			 struct lima_sched_context *context,
>  			 struct lima_bo **bos, int num_bos,
> -			 struct lima_vm *vm);
> +			 struct lima_vm *vm,
> +			 u64 drm_client_id);
>  void lima_sched_task_fini(struct lima_sched_task *task);
>  
>  int lima_sched_context_init(struct lima_sched_pipe *pipe,
> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c
> b/drivers/gpu/drm/msm/msm_gem_submit.c
> index 3e9aa2cc38ef..d9be0fe3d674 100644
> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
> @@ -30,7 +30,7 @@
>  static struct msm_gem_submit *submit_create(struct drm_device *dev,
>  		struct msm_gpu *gpu,
>  		struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
> -		uint32_t nr_cmds)
> +		uint32_t nr_cmds, u64 drm_client_id)
>  {
>  	static atomic_t ident = ATOMIC_INIT(0);
>  	struct msm_gem_submit *submit;
> @@ -54,7 +54,8 @@ static struct msm_gem_submit *submit_create(struct
> drm_device *dev,
>  		return ERR_PTR(ret);
>  	}
>  
> -	ret = drm_sched_job_init(&submit->base, queue->entity, 1,
> queue);
> +	ret = drm_sched_job_init(&submit->base, queue->entity, 1,
> queue,
> +				 drm_client_id);
>  	if (ret) {
>  		kfree(submit->hw_fence);
>  		kfree(submit);
> @@ -693,7 +694,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev,
> void *data,
>  		}
>  	}
>  
> -	submit = submit_create(dev, gpu, queue, args->nr_bos, args-
> >nr_cmds);
> +	submit = submit_create(dev, gpu, queue, args->nr_bos, args-
> >nr_cmds,
> +			       file->client_id);
>  	if (IS_ERR(submit)) {
>  		ret = PTR_ERR(submit);
>  		goto out_post_unlock;
> diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c
> b/drivers/gpu/drm/nouveau/nouveau_sched.c
> index d326e55d2d24..460a5fb02412 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_sched.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
> @@ -87,7 +87,8 @@ nouveau_job_init(struct nouveau_job *job,
>  	}
>  
>  	ret = drm_sched_job_init(&job->base, &sched->entity,
> -				 args->credits, NULL);
> +				 args->credits, NULL,
> +				 job->file_priv->client_id);
>  	if (ret)
>  		goto err_free_chains;
>  
> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
> b/drivers/gpu/drm/panfrost/panfrost_drv.c
> index b87f83e94eda..d5c2c6530ed8 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
> @@ -312,7 +312,7 @@ static int panfrost_ioctl_submit(struct
> drm_device *dev, void *data,
>  
>  	ret = drm_sched_job_init(&job->base,
>  				 &file_priv->sched_entity[slot],
> -				 1, NULL);
> +				 1, NULL, file->client_id);
>  	if (ret)
>  		goto out_put_job;
>  
> diff --git a/drivers/gpu/drm/panthor/panthor_drv.c
> b/drivers/gpu/drm/panthor/panthor_drv.c
> index 06fe46e32073..bd8e1900c919 100644
> --- a/drivers/gpu/drm/panthor/panthor_drv.c
> +++ b/drivers/gpu/drm/panthor/panthor_drv.c
> @@ -989,7 +989,8 @@ static int panthor_ioctl_group_submit(struct
> drm_device *ddev, void *data,
>  		const struct drm_panthor_queue_submit *qsubmit =
> &jobs_args[i];
>  		struct drm_sched_job *job;
>  
> -		job = panthor_job_create(pfile, args->group_handle,
> qsubmit);
> +		job = panthor_job_create(pfile, args->group_handle,
> qsubmit,
> +					 file->client_id);
>  		if (IS_ERR(job)) {
>  			ret = PTR_ERR(job);
>  			goto out_cleanup_submit_ctx;
> diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c
> b/drivers/gpu/drm/panthor/panthor_mmu.c
> index 12a02e28f50f..e0c79bd2d173 100644
> --- a/drivers/gpu/drm/panthor/panthor_mmu.c
> +++ b/drivers/gpu/drm/panthor/panthor_mmu.c
> @@ -2516,7 +2516,7 @@ panthor_vm_bind_job_create(struct drm_file
> *file,
>  	kref_init(&job->refcount);
>  	job->vm = panthor_vm_get(vm);
>  
> -	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm);
> +	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm,
> file->client_id);
>  	if (ret)
>  		goto err_put_job;
>  
> diff --git a/drivers/gpu/drm/panthor/panthor_sched.c
> b/drivers/gpu/drm/panthor/panthor_sched.c
> index 446ec780eb4a..2af860c9068a 100644
> --- a/drivers/gpu/drm/panthor/panthor_sched.c
> +++ b/drivers/gpu/drm/panthor/panthor_sched.c
> @@ -3729,7 +3729,8 @@ struct panthor_vm *panthor_job_vm(struct
> drm_sched_job *sched_job)
>  struct drm_sched_job *
>  panthor_job_create(struct panthor_file *pfile,
>  		   u16 group_handle,
> -		   const struct drm_panthor_queue_submit *qsubmit)
> +		   const struct drm_panthor_queue_submit *qsubmit,
> +		   u64 drm_client_id)
>  {
>  	struct panthor_group_pool *gpool = pfile->groups;
>  	struct panthor_job *job;
> @@ -3801,7 +3802,7 @@ panthor_job_create(struct panthor_file *pfile,
>  
>  	ret = drm_sched_job_init(&job->base,
>  				 &job->group->queues[job-
> >queue_idx]->entity,
> -				 credits, job->group);
> +				 credits, job->group,
> drm_client_id);
>  	if (ret)
>  		goto err_put_job;
>  
> diff --git a/drivers/gpu/drm/panthor/panthor_sched.h
> b/drivers/gpu/drm/panthor/panthor_sched.h
> index e650a445cf50..742b0b4ff3a3 100644
> --- a/drivers/gpu/drm/panthor/panthor_sched.h
> +++ b/drivers/gpu/drm/panthor/panthor_sched.h
> @@ -29,7 +29,8 @@ int panthor_group_get_state(struct panthor_file
> *pfile,
>  struct drm_sched_job *
>  panthor_job_create(struct panthor_file *pfile,
>  		   u16 group_handle,
> -		   const struct drm_panthor_queue_submit *qsubmit);
> +		   const struct drm_panthor_queue_submit *qsubmit,
> +		   u64 drm_client_id);
>  struct drm_sched_job *panthor_job_get(struct drm_sched_job *job);
>  struct panthor_vm *panthor_job_vm(struct drm_sched_job *sched_job);
>  void panthor_job_put(struct drm_sched_job *job);
> diff --git a/drivers/gpu/drm/scheduler/sched_fence.c
> b/drivers/gpu/drm/scheduler/sched_fence.c
> index e971528504a5..d208d384d38d 100644
> --- a/drivers/gpu/drm/scheduler/sched_fence.c
> +++ b/drivers/gpu/drm/scheduler/sched_fence.c
> @@ -206,7 +206,8 @@ struct drm_sched_fence *to_drm_sched_fence(struct
> dma_fence *f)
>  EXPORT_SYMBOL(to_drm_sched_fence);
>  
>  struct drm_sched_fence *drm_sched_fence_alloc(struct
> drm_sched_entity *entity,
> -					      void *owner)
> +					      void *owner,
> +					      u64 drm_client_id)
>  {
>  	struct drm_sched_fence *fence = NULL;
>  
> @@ -215,6 +216,7 @@ struct drm_sched_fence
> *drm_sched_fence_alloc(struct drm_sched_entity *entity,
>  		return NULL;
>  
>  	fence->owner = owner;
> +	fence->drm_client_id = drm_client_id;
>  	spin_lock_init(&fence->lock);
>  
>  	return fence;
> diff --git a/drivers/gpu/drm/scheduler/sched_internal.h
> b/drivers/gpu/drm/scheduler/sched_internal.h
> index 599cf6e1bb74..7ea5a6736f98 100644
> --- a/drivers/gpu/drm/scheduler/sched_internal.h
> +++ b/drivers/gpu/drm/scheduler/sched_internal.h
> @@ -24,7 +24,7 @@ void drm_sched_entity_select_rq(struct
> drm_sched_entity *entity);
>  struct drm_sched_job *drm_sched_entity_pop_job(struct
> drm_sched_entity *entity);
>  
>  struct drm_sched_fence *drm_sched_fence_alloc(struct
> drm_sched_entity *s_entity,
> -					      void *owner);
> +					      void *owner, u64
> drm_client_id);
>  void drm_sched_fence_init(struct drm_sched_fence *fence,
>  			  struct drm_sched_entity *entity);
>  void drm_sched_fence_free(struct drm_sched_fence *fence);
> diff --git a/drivers/gpu/drm/scheduler/sched_main.c
> b/drivers/gpu/drm/scheduler/sched_main.c
> index 829579c41c6b..60611618f3ab 100644
> --- a/drivers/gpu/drm/scheduler/sched_main.c
> +++ b/drivers/gpu/drm/scheduler/sched_main.c
> @@ -764,6 +764,7 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>   * @credits: the number of credits this job contributes to the
> schedulers
>   * credit limit
>   * @owner: job owner for debugging
> + * @drm_client_id: drm_file.client_id of the owner

For the docu generation to link that properly it must be written as

&struct drm_file.client_id

Besides, if this were an optional parameter, one should document it.
I'm not sure if it is, I haven't used these client_id's before.

P.

>   *
>   * Refer to drm_sched_entity_push_job() documentation
>   * for locking considerations.
> @@ -784,7 +785,8 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>   */
>  int drm_sched_job_init(struct drm_sched_job *job,
>  		       struct drm_sched_entity *entity,
> -		       u32 credits, void *owner)
> +		       u32 credits, void *owner,
> +		       uint64_t drm_client_id)
>  {
>  	if (!entity->rq) {
>  		/* This will most likely be followed by missing
> frames
> @@ -810,7 +812,7 @@ int drm_sched_job_init(struct drm_sched_job *job,
>  
>  	job->entity = entity;
>  	job->credits = credits;
> -	job->s_fence = drm_sched_fence_alloc(entity, owner);
> +	job->s_fence = drm_sched_fence_alloc(entity, owner,
> drm_client_id);
>  	if (!job->s_fence)
>  		return -ENOMEM;
>  
> diff --git a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> index f999c8859cf7..09ffbdb32d76 100644
> --- a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> +++ b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> @@ -35,7 +35,7 @@ drm_mock_sched_entity_new(struct kunit *test,
>  	ret = drm_sched_entity_init(&entity->base,
>  				    priority,
>  				    &drm_sched, 1,
> -				    NULL);
> +				    NULL, 1);
>  	KUNIT_ASSERT_EQ(test, ret, 0);
>  
>  	entity->test = test;
> diff --git a/drivers/gpu/drm/v3d/v3d_submit.c
> b/drivers/gpu/drm/v3d/v3d_submit.c
> index 4ff5de46fb22..5171ffe9012d 100644
> --- a/drivers/gpu/drm/v3d/v3d_submit.c
> +++ b/drivers/gpu/drm/v3d/v3d_submit.c
> @@ -169,7 +169,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file
> *file_priv,
>  	job->file = file_priv;
>  
>  	ret = drm_sched_job_init(&job->base, &v3d_priv-
> >sched_entity[queue],
> -				 1, v3d_priv);
> +				 1, v3d_priv, file_priv->client_id);
>  	if (ret)
>  		return ret;
>  
> diff --git a/drivers/gpu/drm/xe/xe_sched_job.c
> b/drivers/gpu/drm/xe/xe_sched_job.c
> index 1905ca590965..f4679cb9a56b 100644
> --- a/drivers/gpu/drm/xe/xe_sched_job.c
> +++ b/drivers/gpu/drm/xe/xe_sched_job.c
> @@ -113,7 +113,8 @@ struct xe_sched_job *xe_sched_job_create(struct
> xe_exec_queue *q,
>  	kref_init(&job->refcount);
>  	xe_exec_queue_get(job->q);
>  
> -	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL);
> +	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
> +				 q->xef->drm->client_id);
>  	if (err)
>  		goto err_free;
>  
> diff --git a/include/drm/gpu_scheduler.h
> b/include/drm/gpu_scheduler.h
> index 1a7e377d4cbb..6fe3b4c0cffb 100644
> --- a/include/drm/gpu_scheduler.h
> +++ b/include/drm/gpu_scheduler.h
> @@ -305,6 +305,13 @@ struct drm_sched_fence {
>           * @owner: job owner for debugging
>           */
>  	void				*owner;
> +
> +	/**
> +	 * @drm_client_id:
> +	 *
> +	 * The client_id of the drm_file which owns the job.
> +	 */
> +	uint64_t			drm_client_id;
>  };
>  
>  struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
> @@ -629,7 +636,8 @@ drm_sched_pick_best(struct drm_gpu_scheduler
> **sched_list,
>  
>  int drm_sched_job_init(struct drm_sched_job *job,
>  		       struct drm_sched_entity *entity,
> -		       u32 credits, void *owner);
> +		       u32 credits, void *owner,
> +		       u64 drm_client_id);
>  void drm_sched_job_arm(struct drm_sched_job *job);
>  void drm_sched_entity_push_job(struct drm_sched_job *sched_job);
>  int drm_sched_job_add_dependency(struct drm_sched_job *job,

Re: [PATCH v9 02/10] drm/sched: store the drm client_id in drm_sched_fence

[Pierre-Eric Pelloux-Prayer]

Hi,

Le 14/05/2025 à 14:44, Philipp Stanner a écrit :
> On Thu, 2025-04-24 at 10:38 +0200, Pierre-Eric Pelloux-Prayer wrote:
>> This will be used in a later commit to trace the drm client_id in
>> some of the gpu_scheduler trace events.
>>
>> This requires changing all the users of drm_sched_job_init to
>> add an extra parameter.
>>
>> The newly added drm_client_id field in the drm_sched_fence is a bit
>> of a duplicate of the owner one. One suggestion I received was to
>> merge those 2 fields - this can't be done right now as amdgpu uses
>> some special values (AMDGPU_FENCE_OWNER_*) that can't really be
>> translated into a client id. Christian is working on getting rid of
>> those; when it's done we should be able to squash owner/drm_client_id
>> together.
>>
>> Reviewed-by: Christian König <christian.koenig@amd.com>
>> Signed-off-by: Pierre-Eric Pelloux-Prayer
>> <pierre-eric.pelloux-prayer@amd.com>
>> ---
>>   drivers/accel/amdxdna/aie2_ctx.c                 |  3 ++-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c       |  2 +-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |  3 ++-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  8 +++++---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |  3 ++-
>>   drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c     |  2 +-
>>   drivers/gpu/drm/imagination/pvr_job.c            |  2 +-
>>   drivers/gpu/drm/imagination/pvr_queue.c          |  5 +++--
>>   drivers/gpu/drm/imagination/paac             |  8 +++++---
>>   drivers/gpu/drm/nouveau/nouveau_sched.c          |  3 ++-
>>   drivers/gpu/drm/panfrost/panfrost_drv.c          |  2 +-
>>   drivers/gpu/drm/panthor/panthor_drv.c            |  3 ++-
>>   drivers/gpu/drm/panthor/panthor_mmu.c            |  2 +-
>>   drivers/gpu/drm/panthor/panthor_sched.c          |  5 +++--
>>   drivers/gpu/drm/panthor/panthor_sched.h          |  3 ++-
>>   drivers/gpu/drm/scheduler/sched_fence.c          |  4 ++
>>   drivers/gpu/drm/scheduler/sched_internal.h       |  2 +-
>>   drivers/gpu/drm/scheduler/sched_main.c           |  6 ++++--
>>   drivers/gpu/drm/scheduler/tests/mock_scheduler.c |  2 +-
>>   drivers/gpu/drm/v3d/v3d_submit.c                 |  2 +-
>>   drivers/gpu/drm/xe/xe_sched_job.c                |  3 ++-
>>   include/drm/gpu_scheduler.h                      | 10 +++++++++-
>>   26 files changed, 62 insertions(+), 34 deletions(-)
> 
> I think last time I asked about what your merge plan for this is, since
> it touches so many drivers. Should I take that?

Based on:

https://drm.pages.freedesktop.org/maintainer-tools/committer/committer-drm-misc.html

"drm-misc is for drm core (non-driver) patches, subsystem-wide refactorings,
and small trivial patches all over (including drivers)."

I assume it should go through drm-misc.


> 
> Besides one comment below, scheduler bits look fine.
> 
>>
>> diff --git a/drivers/accel/amdxdna/aie2_ctx.c
>> b/drivers/accel/amdxdna/aie2_ctx.c
>> index e04549f64d69..3e38a5f637ea 100644
>> --- a/drivers/accel/amdxdna/aie2_ctx.c
>> +++ b/drivers/accel/amdxdna/aie2_ctx.c
>> @@ -848,7 +848,8 @@ int aie2_cmd_submit(struct amdxdna_hwctx *hwctx,
>> struct amdxdna_sched_job *job,
>>   		goto up_sem;
>>   	}
>>   
>> -	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
>> 1, hwctx);
>> +	ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
>> 1, hwctx,
>> +				 hwctx->client->filp->client_id);
>>   	if (ret) {
>>   		XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
>>   		goto free_chain;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> index 4cec3a873995..1a77ba7036c9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> @@ -639,7 +639,7 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device
>> *adev,
>>   		goto err;
>>   	}
>>   
>> -	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
>> +	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job, 0);
>>   	if (ret)
>>   		goto err;
>>   
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> index 82df06a72ee0..5a231b997d65 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> @@ -293,7 +293,8 @@ static int amdgpu_cs_pass1(struct
>> amdgpu_cs_parser *p,
>>   
>>   	for (i = 0; i < p->gang_size; ++i) {
>>   		ret = amdgpu_job_alloc(p->adev, vm, p->entities[i],
>> vm,
>> -				       num_ibs[i], &p->jobs[i]);
>> +				       num_ibs[i], &p->jobs[i],
>> +				       p->filp->client_id);
>>   		if (ret)
>>   			goto free_all_kdata;
>>   		p->jobs[i]->enforce_isolation = p->adev-
>>> enforce_isolation[fpriv->xcp_id];
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> index acb21fc8b3ce..75262ce8db27 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> @@ -204,7 +204,8 @@ static enum drm_gpu_sched_stat
>> amdgpu_job_timedout(struct drm_sched_job *s_job)
>>   
>>   int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
>> *vm,
>>   		     struct drm_sched_entity *entity, void *owner,
>> -		     unsigned int num_ibs, struct amdgpu_job **job)
>> +		     unsigned int num_ibs, struct amdgpu_job **job,
>> +		     u64 drm_client_id)
>>   {
>>   	if (num_ibs == 0)
>>   		return -EINVAL;
>> @@ -222,7 +223,8 @@ int amdgpu_job_alloc(struct amdgpu_device *adev,
>> struct amdgpu_vm *vm,
>>   	if (!entity)
>>   		return 0;
>>   
>> -	return drm_sched_job_init(&(*job)->base, entity, 1, owner);
>> +	return drm_sched_job_init(&(*job)->base, entity, 1, owner,
>> +				  drm_client_id);
>>   }
>>   
>>   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
>> @@ -232,7 +234,7 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device
>> *adev,
>>   {
>>   	int r;
>>   
>> -	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
>> +	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job, 0);
>>   	if (r)
>>   		return r;
>>   
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>> index ce6b9ba967ff..5a8bc6342222 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>> @@ -90,7 +90,8 @@ static inline struct amdgpu_ring
>> *amdgpu_job_ring(struct amdgpu_job *job)
>>   
>>   int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
>> *vm,
>>   		     struct drm_sched_entity *entity, void *owner,
>> -		     unsigned int num_ibs, struct amdgpu_job **job);
>> +		     unsigned int num_ibs, struct amdgpu_job **job,
>> +		     u64 drm_client_id);
>>   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
>>   			     struct drm_sched_entity *entity, void
>> *owner,
>>   			     size_t size, enum amdgpu_ib_pool_type
>> pool_type,
>> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> index 3c0a5c3e0e3d..76c742328edb 100644
>> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>> @@ -534,7 +534,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device
>> *dev, void *data,
>>   
>>   	ret = drm_sched_job_init(&submit->sched_job,
>>   				 &ctx->sched_entity[args->pipe],
>> -				 1, submit->ctx);
>> +				 1, submit->ctx, file->client_id);
>>   	if (ret)
>>   		goto err_submit_put;
>>   
>> diff --git a/drivers/gpu/drm/imagination/pvr_job.c
>> b/drivers/gpu/drm/imagination/pvr_job.c
>> index 59b334d094fa..7564b0f21b42 100644
>> --- a/drivers/gpu/drm/imagination/pvr_job.c
>> +++ b/drivers/gpu/drm/imagination/pvr_job.c
>> @@ -446,7 +446,7 @@ create_job(struct pvr_device *pvr_dev,
>>   	if (err)
>>   		goto err_put_job;
>>   
>> -	err = pvr_queue_job_init(job);
>> +	err = pvr_queue_job_init(job, pvr_file->file->client_id);
>>   	if (err)
>>   		goto err_put_job;
>>   
>> diff --git a/drivers/gpu/drm/imagination/pvr_queue.c
>> b/drivers/gpu/drm/imagination/pvr_queue.c
>> index 5e9bc0992824..5a41ee79fed6 100644
>> --- a/drivers/gpu/drm/imagination/pvr_queue.c
>> +++ b/drivers/gpu/drm/imagination/pvr_queue.c
>> @@ -1073,6 +1073,7 @@ static int pvr_queue_cleanup_fw_context(struct
>> pvr_queue *queue)
>>   /**
>>    * pvr_queue_job_init() - Initialize queue related fields in a
>> pvr_job object.
>>    * @job: The job to initialize.
>> + * @drm_client_id: drm_file.client_id submitting the job
>>    *
>>    * Bind the job to a queue and allocate memory to guarantee
>> pvr_queue_job_arm()
>>    * and pvr_queue_job_push() can't fail. We also make sure the
>> context type is
>> @@ -1082,7 +1083,7 @@ static int pvr_queue_cleanup_fw_context(struct
>> pvr_queue *queue)
>>    *  * 0 on success, or
>>    *  * An error code if something failed.
>>    */
>> -int pvr_queue_job_init(struct pvr_job *job)
>> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id)
>>   {
>>   	/* Fragment jobs need at least one native fence wait on the
>> geometry job fence. */
>>   	u32 min_native_dep_count = job->type ==
>> DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
>> @@ -1099,7 +1100,7 @@ int pvr_queue_job_init(struct pvr_job *job)
>>   	if (!pvr_cccb_cmdseq_can_fit(&queue->cccb,
>> job_cmds_size(job, min_native_dep_count)))
>>   		return -E2BIG;
>>   
>> -	err = drm_sched_job_init(&job->base, &queue->entity, 1,
>> THIS_MODULE);
>> +	err = drm_sched_job_init(&job->base, &queue->entity, 1,
>> THIS_MODULE, drm_client_id);
>>   	if (err)
>>   		return err;
>>   
>> diff --git a/drivers/gpu/drm/imagination/pvr_queue.h
>> b/drivers/gpu/drm/imagination/pvr_queue.h
>> index 93fe9ac9f58c..fc1986d73fc8 100644
>> --- a/drivers/gpu/drm/imagination/pvr_queue.h
>> +++ b/drivers/gpu/drm/imagination/pvr_queue.h
>> @@ -143,7 +143,7 @@ struct pvr_queue {
>>   
>>   bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
>>   
>> -int pvr_queue_job_init(struct pvr_job *job);
>> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id);
>>   
>>   void pvr_queue_job_cleanup(struct pvr_job *job);
>>   
>> diff --git a/drivers/gpu/drm/lima/lima_gem.c
>> b/drivers/gpu/drm/lima/lima_gem.c
>> index 5deec673c11e..9722b847a539 100644
>> --- a/drivers/gpu/drm/lima/lima_gem.c
>> +++ b/drivers/gpu/drm/lima/lima_gem.c
>> @@ -341,7 +341,7 @@ int lima_gem_submit(struct drm_file *file, struct
>> lima_submit *submit)
>>   
>>   	err = lima_sched_task_init(
>>   		submit->task, submit->ctx->context + submit->pipe,
>> -		bos, submit->nr_bos, vm);
>> +		bos, submit->nr_bos, vm, file->client_id);
>>   	if (err)
>>   		goto err_out1;
>>   
>> diff --git a/drivers/gpu/drm/lima/lima_sched.c
>> b/drivers/gpu/drm/lima/lima_sched.c
>> index 7934098e651b..954f4325b859 100644
>> --- a/drivers/gpu/drm/lima/lima_sched.c
>> +++ b/drivers/gpu/drm/lima/lima_sched.c
>> @@ -113,7 +113,8 @@ static inline struct lima_sched_pipe
>> *to_lima_pipe(struct drm_gpu_scheduler *sch
>>   int lima_sched_task_init(struct lima_sched_task *task,
>>   			 struct lima_sched_context *context,
>>   			 struct lima_bo **bos, int num_bos,
>> -			 struct lima_vm *vm)
>> +			 struct lima_vm *vm,
>> +			 u64 drm_client_id)
>>   {
>>   	int err, i;
>>   
>> @@ -124,7 +125,8 @@ int lima_sched_task_init(struct lima_sched_task
>> *task,
>>   	for (i = 0; i < num_bos; i++)
>>   		drm_gem_object_get(&bos[i]->base.base);
>>   
>> -	err = drm_sched_job_init(&task->base, &context->base, 1,
>> vm);
>> +	err = drm_sched_job_init(&task->base, &context->base, 1, vm,
>> +				 drm_client_id);
>>   	if (err) {
>>   		kfree(task->bos);
>>   		return err;
>> diff --git a/drivers/gpu/drm/lima/lima_sched.h
>> b/drivers/gpu/drm/lima/lima_sched.h
>> index 85b23ba901d5..1a08faf8a529 100644
>> --- a/drivers/gpu/drm/lima/lima_sched.h
>> +++ b/drivers/gpu/drm/lima/lima_sched.h
>> @@ -88,7 +88,8 @@ struct lima_sched_pipe {
>>   int lima_sched_task_init(struct lima_sched_task *task,
>>   			 struct lima_sched_context *context,
>>   			 struct lima_bo **bos, int num_bos,
>> -			 struct lima_vm *vm);
>> +			 struct lima_vm *vm,
>> +			 u64 drm_client_id);
>>   void lima_sched_task_fini(struct lima_sched_task *task);
>>   
>>   int lima_sched_context_init(struct lima_sched_pipe *pipe,
>> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c
>> b/drivers/gpu/drm/msm/msm_gem_submit.c
>> index 3e9aa2cc38ef..d9be0fe3d674 100644
>> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
>> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
>> @@ -30,7 +30,7 @@
>>   static struct msm_gem_submit *submit_create(struct drm_device *dev,
>>   		struct msm_gpu *gpu,
>>   		struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
>> -		uint32_t nr_cmds)
>> +		uint32_t nr_cmds, u64 drm_client_id)
>>   {
>>   	static atomic_t ident = ATOMIC_INIT(0);
>>   	struct msm_gem_submit *submit;
>> @@ -54,7 +54,8 @@ static struct msm_gem_submit *submit_create(struct
>> drm_device *dev,
>>   		return ERR_PTR(ret);
>>   	}
>>   
>> -	ret = drm_sched_job_init(&submit->base, queue->entity, 1,
>> queue);
>> +	ret = drm_sched_job_init(&submit->base, queue->entity, 1,
>> queue,
>> +				 drm_client_id);
>>   	if (ret) {
>>   		kfree(submit->hw_fence);
>>   		kfree(submit);
>> @@ -693,7 +694,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev,
>> void *data,
>>   		}
>>   	}
>>   
>> -	submit = submit_create(dev, gpu, queue, args->nr_bos, args-
>>> nr_cmds);
>> +	submit = submit_create(dev, gpu, queue, args->nr_bos, args-
>>> nr_cmds,
>> +			       file->client_id);
>>   	if (IS_ERR(submit)) {
>>   		ret = PTR_ERR(submit);
>>   		goto out_post_unlock;
>> diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c
>> b/drivers/gpu/drm/nouveau/nouveau_sched.c
>> index d326e55d2d24..460a5fb02412 100644
>> --- a/drivers/gpu/drm/nouveau/nouveau_sched.c
>> +++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
>> @@ -87,7 +87,8 @@ nouveau_job_init(struct nouveau_job *job,
>>   	}
>>   
>>   	ret = drm_sched_job_init(&job->base, &sched->entity,
>> -				 args->credits, NULL);
>> +				 args->credits, NULL,
>> +				 job->file_priv->client_id);
>>   	if (ret)
>>   		goto err_free_chains;
>>   
>> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
>> b/drivers/gpu/drm/panfrost/panfrost_drv.c
>> index b87f83e94eda..d5c2c6530ed8 100644
>> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
>> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
>> @@ -312,7 +312,7 @@ static int panfrost_ioctl_submit(struct
>> drm_device *dev, void *data,
>>   
>>   	ret = drm_sched_job_init(&job->base,
>>   				 &file_priv->sched_entity[slot],
>> -				 1, NULL);
>> +				 1, NULL, file->client_id);
>>   	if (ret)
>>   		goto out_put_job;
>>   
>> diff --git a/drivers/gpu/drm/panthor/panthor_drv.c
>> b/drivers/gpu/drm/panthor/panthor_drv.c
>> index 06fe46e32073..bd8e1900c919 100644
>> --- a/drivers/gpu/drm/panthor/panthor_drv.c
>> +++ b/drivers/gpu/drm/panthor/panthor_drv.c
>> @@ -989,7 +989,8 @@ static int panthor_ioctl_group_submit(struct
>> drm_device *ddev, void *data,
>>   		const struct drm_panthor_queue_submit *qsubmit =
>> &jobs_args[i];
>>   		struct drm_sched_job *job;
>>   
>> -		job = panthor_job_create(pfile, args->group_handle,
>> qsubmit);
>> +		job = panthor_job_create(pfile, args->group_handle,
>> qsubmit,
>> +					 file->client_id);
>>   		if (IS_ERR(job)) {
>>   			ret = PTR_ERR(job);
>>   			goto out_cleanup_submit_ctx;
>> diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c
>> b/drivers/gpu/drm/panthor/panthor_mmu.c
>> index 12a02e28f50f..e0c79bd2d173 100644
>> --- a/drivers/gpu/drm/panthor/panthor_mmu.c
>> +++ b/drivers/gpu/drm/panthor/panthor_mmu.c
>> @@ -2516,7 +2516,7 @@ panthor_vm_bind_job_create(struct drm_file
>> *file,
>>   	kref_init(&job->refcount);
>>   	job->vm = panthor_vm_get(vm);
>>   
>> -	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm);
>> +	ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm,
>> file->client_id);
>>   	if (ret)
>>   		goto err_put_job;
>>   
>> diff --git a/drivers/gpu/drm/panthor/panthor_sched.c
>> b/drivers/gpu/drm/panthor/panthor_sched.c
>> index 446ec780eb4a..2af860c9068a 100644
>> --- a/drivers/gpu/drm/panthor/panthor_sched.c
>> +++ b/drivers/gpu/drm/panthor/panthor_sched.c
>> @@ -3729,7 +3729,8 @@ struct panthor_vm *panthor_job_vm(struct
>> drm_sched_job *sched_job)
>>   struct drm_sched_job *
>>   panthor_job_create(struct panthor_file *pfile,
>>   		   u16 group_handle,
>> -		   const struct drm_panthor_queue_submit *qsubmit)
>> +		   const struct drm_panthor_queue_submit *qsubmit,
>> +		   u64 drm_client_id)
>>   {
>>   	struct panthor_group_pool *gpool = pfile->groups;
>>   	struct panthor_job *job;
>> @@ -3801,7 +3802,7 @@ panthor_job_create(struct panthor_file *pfile,
>>   
>>   	ret = drm_sched_job_init(&job->base,
>>   				 &job->group->queues[job-
>>> queue_idx]->entity,
>> -				 credits, job->group);
>> +				 credits, job->group,
>> drm_client_id);
>>   	if (ret)
>>   		goto err_put_job;
>>   
>> diff --git a/drivers/gpu/drm/panthor/panthor_sched.h
>> b/drivers/gpu/drm/panthor/panthor_sched.h
>> index e650a445cf50..742b0b4ff3a3 100644
>> --- a/drivers/gpu/drm/panthor/panthor_sched.h
>> +++ b/drivers/gpu/drm/panthor/panthor_sched.h
>> @@ -29,7 +29,8 @@ int panthor_group_get_state(struct panthor_file
>> *pfile,
>>   struct drm_sched_job *
>>   panthor_job_create(struct panthor_file *pfile,
>>   		   u16 group_handle,
>> -		   const struct drm_panthor_queue_submit *qsubmit);
>> +		   const struct drm_panthor_queue_submit *qsubmit,
>> +		   u64 drm_client_id);
>>   struct drm_sched_job *panthor_job_get(struct drm_sched_job *job);
>>   struct panthor_vm *panthor_job_vm(struct drm_sched_job *sched_job);
>>   void panthor_job_put(struct drm_sched_job *job);
>> diff --git a/drivers/gpu/drm/scheduler/sched_fence.c
>> b/drivers/gpu/drm/scheduler/sched_fence.c
>> index e971528504a5..d208d384d38d 100644
>> --- a/drivers/gpu/drm/scheduler/sched_fence.c
>> +++ b/drivers/gpu/drm/scheduler/sched_fence.c
>> @@ -206,7 +206,8 @@ struct drm_sched_fence *to_drm_sched_fence(struct
>> dma_fence *f)
>>   EXPORT_SYMBOL(to_drm_sched_fence);
>>   
>>   struct drm_sched_fence *drm_sched_fence_alloc(struct
>> drm_sched_entity *entity,
>> -					      void *owner)
>> +					      void *owner,
>> +					      u64 drm_client_id)
>>   {
>>   	struct drm_sched_fence *fence = NULL;
>>   
>> @@ -215,6 +216,7 @@ struct drm_sched_fence
>> *drm_sched_fence_alloc(struct drm_sched_entity *entity,
>>   		return NULL;
>>   
>>   	fence->owner = owner;
>> +	fence->drm_client_id = drm_client_id;
>>   	spin_lock_init(&fence->lock);
>>   
>>   	return fence;
>> diff --git a/drivers/gpu/drm/scheduler/sched_internal.h
>> b/drivers/gpu/drm/scheduler/sched_internal.h
>> index 599cf6e1bb74..7ea5a6736f98 100644
>> --- a/drivers/gpu/drm/scheduler/sched_internal.h
>> +++ b/drivers/gpu/drm/scheduler/sched_internal.h
>> @@ -24,7 +24,7 @@ void drm_sched_entity_select_rq(struct
>> drm_sched_entity *entity);
>>   struct drm_sched_job *drm_sched_entity_pop_job(struct
>> drm_sched_entity *entity);
>>   
>>   struct drm_sched_fence *drm_sched_fence_alloc(struct
>> drm_sched_entity *s_entity,
>> -					      void *owner);
>> +					      void *owner, u64
>> drm_client_id);
>>   void drm_sched_fence_init(struct drm_sched_fence *fence,
>>   			  struct drm_sched_entity *entity);
>>   void drm_sched_fence_free(struct drm_sched_fence *fence);
>> diff --git a/drivers/gpu/drm/scheduler/sched_main.c
>> b/drivers/gpu/drm/scheduler/sched_main.c
>> index 829579c41c6b..60611618f3ab 100644
>> --- a/drivers/gpu/drm/scheduler/sched_main.c
>> +++ b/drivers/gpu/drm/scheduler/sched_main.c
>> @@ -764,6 +764,7 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>>    * @credits: the number of credits this job contributes to the
>> schedulers
>>    * credit limit
>>    * @owner: job owner for debugging
>> + * @drm_client_id: drm_file.client_id of the owner
> 
> For the docu generation to link that properly it must be written as
> 
> &struct drm_file.client_id

Noted.

> 
> Besides, if this were an optional parameter, one should document it.
> I'm not sure if it is, I haven't used these client_id's before.

Passing an invalid client_id would only cause the trace events to print the invalid client_id.

Thanks,
Pierre-Eric


> 
> P.
> 
>>    *
>>    * Refer to drm_sched_entity_push_job() documentation
>>    * for locking considerations.
>> @@ -784,7 +785,8 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>>    */
>>   int drm_sched_job_init(struct drm_sched_job *job,
>>   		       struct drm_sched_entity *entity,
>> -		       u32 credits, void *owner)
>> +		       u32 credits, void *owner,
>> +		       uint64_t drm_client_id)
>>   {
>>   	if (!entity->rq) {
>>   		/* This will most likely be followed by missing
>> frames
>> @@ -810,7 +812,7 @@ int drm_sched_job_init(struct drm_sched_job *job,
>>   
>>   	job->entity = entity;
>>   	job->credits = credits;
>> -	job->s_fence = drm_sched_fence_alloc(entity, owner);
>> +	job->s_fence = drm_sched_fence_alloc(entity, owner,
>> drm_client_id);
>>   	if (!job->s_fence)
>>   		return -ENOMEM;
>>   
>> diff --git a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>> b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>> index f999c8859cf7..09ffbdb32d76 100644
>> --- a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>> +++ b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>> @@ -35,7 +35,7 @@ drm_mock_sched_entity_new(struct kunit *test,
>>   	ret = drm_sched_entity_init(&entity->base,
>>   				    priority,
>>   				    &drm_sched, 1,
>> -				    NULL);
>> +				    NULL, 1);
>>   	KUNIT_ASSERT_EQ(test, ret, 0);
>>   
>>   	entity->test = test;
>> diff --git a/drivers/gpu/drm/v3d/v3d_submit.c
>> b/drivers/gpu/drm/v3d/v3d_submit.c
>> index 4ff5de46fb22..5171ffe9012d 100644
>> --- a/drivers/gpu/drm/v3d/v3d_submit.c
>> +++ b/drivers/gpu/drm/v3d/v3d_submit.c
>> @@ -169,7 +169,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file
>> *file_priv,
>>   	job->file = file_priv;
>>   
>>   	ret = drm_sched_job_init(&job->base, &v3d_priv-
>>> sched_entity[queue],
>> -				 1, v3d_priv);
>> +				 1, v3d_priv, file_priv->client_id);
>>   	if (ret)
>>   		return ret;
>>   
>> diff --git a/drivers/gpu/drm/xe/xe_sched_job.c
>> b/drivers/gpu/drm/xe/xe_sched_job.c
>> index 1905ca590965..f4679cb9a56b 100644
>> --- a/drivers/gpu/drm/xe/xe_sched_job.c
>> +++ b/drivers/gpu/drm/xe/xe_sched_job.c
>> @@ -113,7 +113,8 @@ struct xe_sched_job *xe_sched_job_create(struct
>> xe_exec_queue *q,
>>   	kref_init(&job->refcount);
>>   	xe_exec_queue_get(job->q);
>>   
>> -	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL);
>> +	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
>> +				 q->xef->drm->client_id);
>>   	if (err)
>>   		goto err_free;
>>   
>> diff --git a/include/drm/gpu_scheduler.h
>> b/include/drm/gpu_scheduler.h
>> index 1a7e377d4cbb..6fe3b4c0cffb 100644
>> --- a/include/drm/gpu_scheduler.h
>> +++ b/include/drm/gpu_scheduler.h
>> @@ -305,6 +305,13 @@ struct drm_sched_fence {
>>            * @owner: job owner for debugging
>>            */
>>   	void				*owner;
>> +
>> +	/**
>> +	 * @drm_client_id:
>> +	 *
>> +	 * The client_id of the drm_file which owns the job.
>> +	 */
>> +	uint64_t			drm_client_id;
>>   };
>>   
>>   struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
>> @@ -629,7 +636,8 @@ drm_sched_pick_best(struct drm_gpu_scheduler
>> **sched_list,
>>   
>>   int drm_sched_job_init(struct drm_sched_job *job,
>>   		       struct drm_sched_entity *entity,
>> -		       u32 credits, void *owner);
>> +		       u32 credits, void *owner,
>> +		       u64 drm_client_id);
>>   void drm_sched_job_arm(struct drm_sched_job *job);
>>   void drm_sched_entity_push_job(struct drm_sched_job *sched_job);
>>   int drm_sched_job_add_dependency(struct drm_sched_job *job,

Re: [PATCH v9 02/10] drm/sched: store the drm client_id in drm_sched_fence

[Pierre-Eric Pelloux-Prayer]

Le 15/05/2025 à 08:53, Pierre-Eric Pelloux-Prayer a écrit :
> Hi,
> 
> Le 14/05/2025 à 14:44, Philipp Stanner a écrit :
>> On Thu, 2025-04-24 at 10:38 +0200, Pierre-Eric Pelloux-Prayer wrote:
>>> This will be used in a later commit to trace the drm client_id in
>>> some of the gpu_scheduler trace events.
>>>
>>> This requires changing all the users of drm_sched_job_init to
>>> add an extra parameter.
>>>
>>> The newly added drm_client_id field in the drm_sched_fence is a bit
>>> of a duplicate of the owner one. One suggestion I received was to
>>> merge those 2 fields - this can't be done right now as amdgpu uses
>>> some special values (AMDGPU_FENCE_OWNER_*) that can't really be
>>> translated into a client id. Christian is working on getting rid of
>>> those; when it's done we should be able to squash owner/drm_client_id
>>> together.
>>>
>>> Reviewed-by: Christian König <christian.koenig@amd.com>
>>> Signed-off-by: Pierre-Eric Pelloux-Prayer
>>> <pierre-eric.pelloux-prayer@amd.com>
>>> ---
>>>   drivers/accel/amdxdna/aie2_ctx.c                 |  3 ++-
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c       |  2 +-
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |  3 ++-
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  8 +++++---
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |  3 ++-
>>>   drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c     |  2 +-
>>>   drivers/gpu/drm/imagination/pvr_job.c            |  2 +-
>>>   drivers/gpu/drm/imagination/pvr_queue.c          |  5 +++--
>>>   drivers/gpu/drm/imagination/paac             |  8 +++++---
>>>   drivers/gpu/drm/nouveau/nouveau_sched.c          |  3 ++-
>>>   drivers/gpu/drm/panfrost/panfrost_drv.c          |  2 +-
>>>   drivers/gpu/drm/panthor/panthor_drv.c            |  3 ++-
>>>   drivers/gpu/drm/panthor/panthor_mmu.c            |  2 +-
>>>   drivers/gpu/drm/panthor/panthor_sched.c          |  5 +++--
>>>   drivers/gpu/drm/panthor/panthor_sched.h          |  3 ++-
>>>   drivers/gpu/drm/scheduler/sched_fence.c          |  4 ++
>>>   drivers/gpu/drm/scheduler/sched_internal.h       |  2 +-
>>>   drivers/gpu/drm/scheduler/sched_main.c           |  6 ++++--
>>>   drivers/gpu/drm/scheduler/tests/mock_scheduler.c |  2 +-
>>>   drivers/gpu/drm/v3d/v3d_submit.c                 |  2 +-
>>>   drivers/gpu/drm/xe/xe_sched_job.c                |  3 ++-
>>>   include/drm/gpu_scheduler.h                      | 10 +++++++++-
>>>   26 files changed, 62 insertions(+), 34 deletions(-)
>>
>> I think last time I asked about what your merge plan for this is, since
>> it touches so many drivers. Should I take that?
> 
> Based on:
> 
> https://drm.pages.freedesktop.org/maintainer-tools/committer/committer-drm-misc.html
> 
> "drm-misc is for drm core (non-driver) patches, subsystem-wide refactorings,
> and small trivial patches all over (including drivers)."
> 
> I assume it should go through drm-misc.

I've addressed your comments and pushed an updated branch to 
https://gitlab.freedesktop.org/pepp/linux/-/commits/improve_gpu_scheduler_trace_v10

Any chance to get this merged soon?

Thanks,
Pierre-Eric



> 
> 
>>
>> Besides one comment below, scheduler bits look fine.
>>
>>>
>>> diff --git a/drivers/accel/amdxdna/aie2_ctx.c
>>> b/drivers/accel/amdxdna/aie2_ctx.c
>>> index e04549f64d69..3e38a5f637ea 100644
>>> --- a/drivers/accel/amdxdna/aie2_ctx.c
>>> +++ b/drivers/accel/amdxdna/aie2_ctx.c
>>> @@ -848,7 +848,8 @@ int aie2_cmd_submit(struct amdxdna_hwctx *hwctx,
>>> struct amdxdna_sched_job *job,
>>>           goto up_sem;
>>>       }
>>> -    ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
>>> 1, hwctx);
>>> +    ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
>>> 1, hwctx,
>>> +                 hwctx->client->filp->client_id);
>>>       if (ret) {
>>>           XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
>>>           goto free_chain;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>>> index 4cec3a873995..1a77ba7036c9 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>>> @@ -639,7 +639,7 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device
>>> *adev,
>>>           goto err;
>>>       }
>>> -    ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
>>> +    ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job, 0);
>>>       if (ret)
>>>           goto err;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> index 82df06a72ee0..5a231b997d65 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> @@ -293,7 +293,8 @@ static int amdgpu_cs_pass1(struct
>>> amdgpu_cs_parser *p,
>>>       for (i = 0; i < p->gang_size; ++i) {
>>>           ret = amdgpu_job_alloc(p->adev, vm, p->entities[i],
>>> vm,
>>> -                       num_ibs[i], &p->jobs[i]);
>>> +                       num_ibs[i], &p->jobs[i],
>>> +                       p->filp->client_id);
>>>           if (ret)
>>>               goto free_all_kdata;
>>>           p->jobs[i]->enforce_isolation = p->adev-
>>>> enforce_isolation[fpriv->xcp_id];
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>>> index acb21fc8b3ce..75262ce8db27 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>>> @@ -204,7 +204,8 @@ static enum drm_gpu_sched_stat
>>> amdgpu_job_timedout(struct drm_sched_job *s_job)
>>>   int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
>>> *vm,
>>>                struct drm_sched_entity *entity, void *owner,
>>> -             unsigned int num_ibs, struct amdgpu_job **job)
>>> +             unsigned int num_ibs, struct amdgpu_job **job,
>>> +             u64 drm_client_id)
>>>   {
>>>       if (num_ibs == 0)
>>>           return -EINVAL;
>>> @@ -222,7 +223,8 @@ int amdgpu_job_alloc(struct amdgpu_device *adev,
>>> struct amdgpu_vm *vm,
>>>       if (!entity)
>>>           return 0;
>>> -    return drm_sched_job_init(&(*job)->base, entity, 1, owner);
>>> +    return drm_sched_job_init(&(*job)->base, entity, 1, owner,
>>> +                  drm_client_id);
>>>   }
>>>   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
>>> @@ -232,7 +234,7 @@ int amdgpu_job_alloc_with_ib(struct amdgpu_device
>>> *adev,
>>>   {
>>>       int r;
>>> -    r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
>>> +    r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job, 0);
>>>       if (r)
>>>           return r;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> index ce6b9ba967ff..5a8bc6342222 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> @@ -90,7 +90,8 @@ static inline struct amdgpu_ring
>>> *amdgpu_job_ring(struct amdgpu_job *job)
>>>   int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm
>>> *vm,
>>>                struct drm_sched_entity *entity, void *owner,
>>> -             unsigned int num_ibs, struct amdgpu_job **job);
>>> +             unsigned int num_ibs, struct amdgpu_job **job,
>>> +             u64 drm_client_id);
>>>   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
>>>                    struct drm_sched_entity *entity, void
>>> *owner,
>>>                    size_t size, enum amdgpu_ib_pool_type
>>> pool_type,
>>> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>>> b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>>> index 3c0a5c3e0e3d..76c742328edb 100644
>>> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>>> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
>>> @@ -534,7 +534,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device
>>> *dev, void *data,
>>>       ret = drm_sched_job_init(&submit->sched_job,
>>>                    &ctx->sched_entity[args->pipe],
>>> -                 1, submit->ctx);
>>> +                 1, submit->ctx, file->client_id);
>>>       if (ret)
>>>           goto err_submit_put;
>>> diff --git a/drivers/gpu/drm/imagination/pvr_job.c
>>> b/drivers/gpu/drm/imagination/pvr_job.c
>>> index 59b334d094fa..7564b0f21b42 100644
>>> --- a/drivers/gpu/drm/imagination/pvr_job.c
>>> +++ b/drivers/gpu/drm/imagination/pvr_job.c
>>> @@ -446,7 +446,7 @@ create_job(struct pvr_device *pvr_dev,
>>>       if (err)
>>>           goto err_put_job;
>>> -    err = pvr_queue_job_init(job);
>>> +    err = pvr_queue_job_init(job, pvr_file->file->client_id);
>>>       if (err)
>>>           goto err_put_job;
>>> diff --git a/drivers/gpu/drm/imagination/pvr_queue.c
>>> b/drivers/gpu/drm/imagination/pvr_queue.c
>>> index 5e9bc0992824..5a41ee79fed6 100644
>>> --- a/drivers/gpu/drm/imagination/pvr_queue.c
>>> +++ b/drivers/gpu/drm/imagination/pvr_queue.c
>>> @@ -1073,6 +1073,7 @@ static int pvr_queue_cleanup_fw_context(struct
>>> pvr_queue *queue)
>>>   /**
>>>    * pvr_queue_job_init() - Initialize queue related fields in a
>>> pvr_job object.
>>>    * @job: The job to initialize.
>>> + * @drm_client_id: drm_file.client_id submitting the job
>>>    *
>>>    * Bind the job to a queue and allocate memory to guarantee
>>> pvr_queue_job_arm()
>>>    * and pvr_queue_job_push() can't fail. We also make sure the
>>> context type is
>>> @@ -1082,7 +1083,7 @@ static int pvr_queue_cleanup_fw_context(struct
>>> pvr_queue *queue)
>>>    *  * 0 on success, or
>>>    *  * An error code if something failed.
>>>    */
>>> -int pvr_queue_job_init(struct pvr_job *job)
>>> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id)
>>>   {
>>>       /* Fragment jobs need at least one native fence wait on the
>>> geometry job fence. */
>>>       u32 min_native_dep_count = job->type ==
>>> DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
>>> @@ -1099,7 +1100,7 @@ int pvr_queue_job_init(struct pvr_job *job)
>>>       if (!pvr_cccb_cmdseq_can_fit(&queue->cccb,
>>> job_cmds_size(job, min_native_dep_count)))
>>>           return -E2BIG;
>>> -    err = drm_sched_job_init(&job->base, &queue->entity, 1,
>>> THIS_MODULE);
>>> +    err = drm_sched_job_init(&job->base, &queue->entity, 1,
>>> THIS_MODULE, drm_client_id);
>>>       if (err)
>>>           return err;
>>> diff --git a/drivers/gpu/drm/imagination/pvr_queue.h
>>> b/drivers/gpu/drm/imagination/pvr_queue.h
>>> index 93fe9ac9f58c..fc1986d73fc8 100644
>>> --- a/drivers/gpu/drm/imagination/pvr_queue.h
>>> +++ b/drivers/gpu/drm/imagination/pvr_queue.h
>>> @@ -143,7 +143,7 @@ struct pvr_queue {
>>>   bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
>>> -int pvr_queue_job_init(struct pvr_job *job);
>>> +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id);
>>>   void pvr_queue_job_cleanup(struct pvr_job *job);
>>> diff --git a/drivers/gpu/drm/lima/lima_gem.c
>>> b/drivers/gpu/drm/lima/lima_gem.c
>>> index 5deec673c11e..9722b847a539 100644
>>> --- a/drivers/gpu/drm/lima/lima_gem.c
>>> +++ b/drivers/gpu/drm/lima/lima_gem.c
>>> @@ -341,7 +341,7 @@ int lima_gem_submit(struct drm_file *file, struct
>>> lima_submit *submit)
>>>       err = lima_sched_task_init(
>>>           submit->task, submit->ctx->context + submit->pipe,
>>> -        bos, submit->nr_bos, vm);
>>> +        bos, submit->nr_bos, vm, file->client_id);
>>>       if (err)
>>>           goto err_out1;
>>> diff --git a/drivers/gpu/drm/lima/lima_sched.c
>>> b/drivers/gpu/drm/lima/lima_sched.c
>>> index 7934098e651b..954f4325b859 100644
>>> --- a/drivers/gpu/drm/lima/lima_sched.c
>>> +++ b/drivers/gpu/drm/lima/lima_sched.c
>>> @@ -113,7 +113,8 @@ static inline struct lima_sched_pipe
>>> *to_lima_pipe(struct drm_gpu_scheduler *sch
>>>   int lima_sched_task_init(struct lima_sched_task *task,
>>>                struct lima_sched_context *context,
>>>                struct lima_bo **bos, int num_bos,
>>> -             struct lima_vm *vm)
>>> +             struct lima_vm *vm,
>>> +             u64 drm_client_id)
>>>   {
>>>       int err, i;
>>> @@ -124,7 +125,8 @@ int lima_sched_task_init(struct lima_sched_task
>>> *task,
>>>       for (i = 0; i < num_bos; i++)
>>>           drm_gem_object_get(&bos[i]->base.base);
>>> -    err = drm_sched_job_init(&task->base, &context->base, 1,
>>> vm);
>>> +    err = drm_sched_job_init(&task->base, &context->base, 1, vm,
>>> +                 drm_client_id);
>>>       if (err) {
>>>           kfree(task->bos);
>>>           return err;
>>> diff --git a/drivers/gpu/drm/lima/lima_sched.h
>>> b/drivers/gpu/drm/lima/lima_sched.h
>>> index 85b23ba901d5..1a08faf8a529 100644
>>> --- a/drivers/gpu/drm/lima/lima_sched.h
>>> +++ b/drivers/gpu/drm/lima/lima_sched.h
>>> @@ -88,7 +88,8 @@ struct lima_sched_pipe {
>>>   int lima_sched_task_init(struct lima_sched_task *task,
>>>                struct lima_sched_context *context,
>>>                struct lima_bo **bos, int num_bos,
>>> -             struct lima_vm *vm);
>>> +             struct lima_vm *vm,
>>> +             u64 drm_client_id);
>>>   void lima_sched_task_fini(struct lima_sched_task *task);
>>>   int lima_sched_context_init(struct lima_sched_pipe *pipe,
>>> diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c
>>> b/drivers/gpu/drm/msm/msm_gem_submit.c
>>> index 3e9aa2cc38ef..d9be0fe3d674 100644
>>> --- a/drivers/gpu/drm/msm/msm_gem_submit.c
>>> +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
>>> @@ -30,7 +30,7 @@
>>>   static struct msm_gem_submit *submit_create(struct drm_device *dev,
>>>           struct msm_gpu *gpu,
>>>           struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
>>> -        uint32_t nr_cmds)
>>> +        uint32_t nr_cmds, u64 drm_client_id)
>>>   {
>>>       static atomic_t ident = ATOMIC_INIT(0);
>>>       struct msm_gem_submit *submit;
>>> @@ -54,7 +54,8 @@ static struct msm_gem_submit *submit_create(struct
>>> drm_device *dev,
>>>           return ERR_PTR(ret);
>>>       }
>>> -    ret = drm_sched_job_init(&submit->base, queue->entity, 1,
>>> queue);
>>> +    ret = drm_sched_job_init(&submit->base, queue->entity, 1,
>>> queue,
>>> +                 drm_client_id);
>>>       if (ret) {
>>>           kfree(submit->hw_fence);
>>>           kfree(submit);
>>> @@ -693,7 +694,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev,
>>> void *data,
>>>           }
>>>       }
>>> -    submit = submit_create(dev, gpu, queue, args->nr_bos, args-
>>>> nr_cmds);
>>> +    submit = submit_create(dev, gpu, queue, args->nr_bos, args-
>>>> nr_cmds,
>>> +                   file->client_id);
>>>       if (IS_ERR(submit)) {
>>>           ret = PTR_ERR(submit);
>>>           goto out_post_unlock;
>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c
>>> b/drivers/gpu/drm/nouveau/nouveau_sched.c
>>> index d326e55d2d24..460a5fb02412 100644
>>> --- a/drivers/gpu/drm/nouveau/nouveau_sched.c
>>> +++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
>>> @@ -87,7 +87,8 @@ nouveau_job_init(struct nouveau_job *job,
>>>       }
>>>       ret = drm_sched_job_init(&job->base, &sched->entity,
>>> -                 args->credits, NULL);
>>> +                 args->credits, NULL,
>>> +                 job->file_priv->client_id);
>>>       if (ret)
>>>           goto err_free_chains;
>>> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
>>> b/drivers/gpu/drm/panfrost/panfrost_drv.c
>>> index b87f83e94eda..d5c2c6530ed8 100644
>>> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
>>> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
>>> @@ -312,7 +312,7 @@ static int panfrost_ioctl_submit(struct
>>> drm_device *dev, void *data,
>>>       ret = drm_sched_job_init(&job->base,
>>>                    &file_priv->sched_entity[slot],
>>> -                 1, NULL);
>>> +                 1, NULL, file->client_id);
>>>       if (ret)
>>>           goto out_put_job;
>>> diff --git a/drivers/gpu/drm/panthor/panthor_drv.c
>>> b/drivers/gpu/drm/panthor/panthor_drv.c
>>> index 06fe46e32073..bd8e1900c919 100644
>>> --- a/drivers/gpu/drm/panthor/panthor_drv.c
>>> +++ b/drivers/gpu/drm/panthor/panthor_drv.c
>>> @@ -989,7 +989,8 @@ static int panthor_ioctl_group_submit(struct
>>> drm_device *ddev, void *data,
>>>           const struct drm_panthor_queue_submit *qsubmit =
>>> &jobs_args[i];
>>>           struct drm_sched_job *job;
>>> -        job = panthor_job_create(pfile, args->group_handle,
>>> qsubmit);
>>> +        job = panthor_job_create(pfile, args->group_handle,
>>> qsubmit,
>>> +                     file->client_id);
>>>           if (IS_ERR(job)) {
>>>               ret = PTR_ERR(job);
>>>               goto out_cleanup_submit_ctx;
>>> diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c
>>> b/drivers/gpu/drm/panthor/panthor_mmu.c
>>> index 12a02e28f50f..e0c79bd2d173 100644
>>> --- a/drivers/gpu/drm/panthor/panthor_mmu.c
>>> +++ b/drivers/gpu/drm/panthor/panthor_mmu.c
>>> @@ -2516,7 +2516,7 @@ panthor_vm_bind_job_create(struct drm_file
>>> *file,
>>>       kref_init(&job->refcount);
>>>       job->vm = panthor_vm_get(vm);
>>> -    ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm);
>>> +    ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm,
>>> file->client_id);
>>>       if (ret)
>>>           goto err_put_job;
>>> diff --git a/drivers/gpu/drm/panthor/panthor_sched.c
>>> b/drivers/gpu/drm/panthor/panthor_sched.c
>>> index 446ec780eb4a..2af860c9068a 100644
>>> --- a/drivers/gpu/drm/panthor/panthor_sched.c
>>> +++ b/drivers/gpu/drm/panthor/panthor_sched.c
>>> @@ -3729,7 +3729,8 @@ struct panthor_vm *panthor_job_vm(struct
>>> drm_sched_job *sched_job)
>>>   struct drm_sched_job *
>>>   panthor_job_create(struct panthor_file *pfile,
>>>              u16 group_handle,
>>> -           const struct drm_panthor_queue_submit *qsubmit)
>>> +           const struct drm_panthor_queue_submit *qsubmit,
>>> +           u64 drm_client_id)
>>>   {
>>>       struct panthor_group_pool *gpool = pfile->groups;
>>>       struct panthor_job *job;
>>> @@ -3801,7 +3802,7 @@ panthor_job_create(struct panthor_file *pfile,
>>>       ret = drm_sched_job_init(&job->base,
>>>                    &job->group->queues[job-
>>>> queue_idx]->entity,
>>> -                 credits, job->group);
>>> +                 credits, job->group,
>>> drm_client_id);
>>>       if (ret)
>>>           goto err_put_job;
>>> diff --git a/drivers/gpu/drm/panthor/panthor_sched.h
>>> b/drivers/gpu/drm/panthor/panthor_sched.h
>>> index e650a445cf50..742b0b4ff3a3 100644
>>> --- a/drivers/gpu/drm/panthor/panthor_sched.h
>>> +++ b/drivers/gpu/drm/panthor/panthor_sched.h
>>> @@ -29,7 +29,8 @@ int panthor_group_get_state(struct panthor_file
>>> *pfile,
>>>   struct drm_sched_job *
>>>   panthor_job_create(struct panthor_file *pfile,
>>>              u16 group_handle,
>>> -           const struct drm_panthor_queue_submit *qsubmit);
>>> +           const struct drm_panthor_queue_submit *qsubmit,
>>> +           u64 drm_client_id);
>>>   struct drm_sched_job *panthor_job_get(struct drm_sched_job *job);
>>>   struct panthor_vm *panthor_job_vm(struct drm_sched_job *sched_job);
>>>   void panthor_job_put(struct drm_sched_job *job);
>>> diff --git a/drivers/gpu/drm/scheduler/sched_fence.c
>>> b/drivers/gpu/drm/scheduler/sched_fence.c
>>> index e971528504a5..d208d384d38d 100644
>>> --- a/drivers/gpu/drm/scheduler/sched_fence.c
>>> +++ b/drivers/gpu/drm/scheduler/sched_fence.c
>>> @@ -206,7 +206,8 @@ struct drm_sched_fence *to_drm_sched_fence(struct
>>> dma_fence *f)
>>>   EXPORT_SYMBOL(to_drm_sched_fence);
>>>   struct drm_sched_fence *drm_sched_fence_alloc(struct
>>> drm_sched_entity *entity,
>>> -                          void *owner)
>>> +                          void *owner,
>>> +                          u64 drm_client_id)
>>>   {
>>>       struct drm_sched_fence *fence = NULL;
>>> @@ -215,6 +216,7 @@ struct drm_sched_fence
>>> *drm_sched_fence_alloc(struct drm_sched_entity *entity,
>>>           return NULL;
>>>       fence->owner = owner;
>>> +    fence->drm_client_id = drm_client_id;
>>>       spin_lock_init(&fence->lock);
>>>       return fence;
>>> diff --git a/drivers/gpu/drm/scheduler/sched_internal.h
>>> b/drivers/gpu/drm/scheduler/sched_internal.h
>>> index 599cf6e1bb74..7ea5a6736f98 100644
>>> --- a/drivers/gpu/drm/scheduler/sched_internal.h
>>> +++ b/drivers/gpu/drm/scheduler/sched_internal.h
>>> @@ -24,7 +24,7 @@ void drm_sched_entity_select_rq(struct
>>> drm_sched_entity *entity);
>>>   struct drm_sched_job *drm_sched_entity_pop_job(struct
>>> drm_sched_entity *entity);
>>>   struct drm_sched_fence *drm_sched_fence_alloc(struct
>>> drm_sched_entity *s_entity,
>>> -                          void *owner);
>>> +                          void *owner, u64
>>> drm_client_id);
>>>   void drm_sched_fence_init(struct drm_sched_fence *fence,
>>>                 struct drm_sched_entity *entity);
>>>   void drm_sched_fence_free(struct drm_sched_fence *fence);
>>> diff --git a/drivers/gpu/drm/scheduler/sched_main.c
>>> b/drivers/gpu/drm/scheduler/sched_main.c
>>> index 829579c41c6b..60611618f3ab 100644
>>> --- a/drivers/gpu/drm/scheduler/sched_main.c
>>> +++ b/drivers/gpu/drm/scheduler/sched_main.c
>>> @@ -764,6 +764,7 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>>>    * @credits: the number of credits this job contributes to the
>>> schedulers
>>>    * credit limit
>>>    * @owner: job owner for debugging
>>> + * @drm_client_id: drm_file.client_id of the owner
>>
>> For the docu generation to link that properly it must be written as
>>
>> &struct drm_file.client_id
> 
> Noted.
> 
>>
>> Besides, if this were an optional parameter, one should document it.
>> I'm not sure if it is, I haven't used these client_id's before.
> 
> Passing an invalid client_id would only cause the trace events to print the invalid client_id.
> 
> Thanks,
> Pierre-Eric
> 
> 
>>
>> P.
>>
>>>    *
>>>    * Refer to drm_sched_entity_push_job() documentation
>>>    * for locking considerations.
>>> @@ -784,7 +785,8 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
>>>    */
>>>   int drm_sched_job_init(struct drm_sched_job *job,
>>>                  struct drm_sched_entity *entity,
>>> -               u32 credits, void *owner)
>>> +               u32 credits, void *owner,
>>> +               uint64_t drm_client_id)
>>>   {
>>>       if (!entity->rq) {
>>>           /* This will most likely be followed by missing
>>> frames
>>> @@ -810,7 +812,7 @@ int drm_sched_job_init(struct drm_sched_job *job,
>>>       job->entity = entity;
>>>       job->credits = credits;
>>> -    job->s_fence = drm_sched_fence_alloc(entity, owner);
>>> +    job->s_fence = drm_sched_fence_alloc(entity, owner,
>>> drm_client_id);
>>>       if (!job->s_fence)
>>>           return -ENOMEM;
>>> diff --git a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>>> b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>>> index f999c8859cf7..09ffbdb32d76 100644
>>> --- a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>>> +++ b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
>>> @@ -35,7 +35,7 @@ drm_mock_sched_entity_new(struct kunit *test,
>>>       ret = drm_sched_entity_init(&entity->base,
>>>                       priority,
>>>                       &drm_sched, 1,
>>> -                    NULL);
>>> +                    NULL, 1);
>>>       KUNIT_ASSERT_EQ(test, ret, 0);
>>>       entity->test = test;
>>> diff --git a/drivers/gpu/drm/v3d/v3d_submit.c
>>> b/drivers/gpu/drm/v3d/v3d_submit.c
>>> index 4ff5de46fb22..5171ffe9012d 100644
>>> --- a/drivers/gpu/drm/v3d/v3d_submit.c
>>> +++ b/drivers/gpu/drm/v3d/v3d_submit.c
>>> @@ -169,7 +169,7 @@ v3d_job_init(struct v3d_dev *v3d, struct drm_file
>>> *file_priv,
>>>       job->file = file_priv;
>>>       ret = drm_sched_job_init(&job->base, &v3d_priv-
>>>> sched_entity[queue],
>>> -                 1, v3d_priv);
>>> +                 1, v3d_priv, file_priv->client_id);
>>>       if (ret)
>>>           return ret;
>>> diff --git a/drivers/gpu/drm/xe/xe_sched_job.c
>>> b/drivers/gpu/drm/xe/xe_sched_job.c
>>> index 1905ca590965..f4679cb9a56b 100644
>>> --- a/drivers/gpu/drm/xe/xe_sched_job.c
>>> +++ b/drivers/gpu/drm/xe/xe_sched_job.c
>>> @@ -113,7 +113,8 @@ struct xe_sched_job *xe_sched_job_create(struct
>>> xe_exec_queue *q,
>>>       kref_init(&job->refcount);
>>>       xe_exec_queue_get(job->q);
>>> -    err = drm_sched_job_init(&job->drm, q->entity, 1, NULL);
>>> +    err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
>>> +                 q->xef->drm->client_id);
>>>       if (err)
>>>           goto err_free;
>>> diff --git a/include/drm/gpu_scheduler.h
>>> b/include/drm/gpu_scheduler.h
>>> index 1a7e377d4cbb..6fe3b4c0cffb 100644
>>> --- a/include/drm/gpu_scheduler.h
>>> +++ b/include/drm/gpu_scheduler.h
>>> @@ -305,6 +305,13 @@ struct drm_sched_fence {
>>>            * @owner: job owner for debugging
>>>            */
>>>       void                *owner;
>>> +
>>> +    /**
>>> +     * @drm_client_id:
>>> +     *
>>> +     * The client_id of the drm_file which owns the job.
>>> +     */
>>> +    uint64_t            drm_client_id;
>>>   };
>>>   struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f);
>>> @@ -629,7 +636,8 @@ drm_sched_pick_best(struct drm_gpu_scheduler
>>> **sched_list,
>>>   int drm_sched_job_init(struct drm_sched_job *job,
>>>                  struct drm_sched_entity *entity,
>>> -               u32 credits, void *owner);
>>> +               u32 credits, void *owner,
>>> +               u64 drm_client_id);
>>>   void drm_sched_job_arm(struct drm_sched_job *job);
>>>   void drm_sched_entity_push_job(struct drm_sched_job *sched_job);
>>>   int drm_sched_job_add_dependency(struct drm_sched_job *job,

Re: [PATCH v9 02/10] drm/sched: store the drm client_id in drm_sched_fence

[Philipp Stanner]

On Mon, 2025-05-19 at 13:02 +0200, Pierre-Eric Pelloux-Prayer wrote:
> 
> 
> Le 15/05/2025 à 08:53, Pierre-Eric Pelloux-Prayer a écrit :
> > Hi,
> > 
> > Le 14/05/2025 à 14:44, Philipp Stanner a écrit :
> > > On Thu, 2025-04-24 at 10:38 +0200, Pierre-Eric Pelloux-Prayer
> > > wrote:
> > > > This will be used in a later commit to trace the drm client_id
> > > > in
> > > > some of the gpu_scheduler trace events.
> > > > 
> > > > This requires changing all the users of drm_sched_job_init to
> > > > add an extra parameter.
> > > > 
> > > > The newly added drm_client_id field in the drm_sched_fence is a
> > > > bit
> > > > of a duplicate of the owner one. One suggestion I received was
> > > > to
> > > > merge those 2 fields - this can't be done right now as amdgpu
> > > > uses
> > > > some special values (AMDGPU_FENCE_OWNER_*) that can't really be
> > > > translated into a client id. Christian is working on getting
> > > > rid of
> > > > those; when it's done we should be able to squash
> > > > owner/drm_client_id
> > > > together.
> > > > 
> > > > Reviewed-by: Christian König <christian.koenig@amd.com>
> > > > Signed-off-by: Pierre-Eric Pelloux-Prayer
> > > > <pierre-eric.pelloux-prayer@amd.com>
> > > > ---
> > > >   drivers/accel/amdxdna/aie2_ctx.c                 |  3 ++-
> > > >   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c       |  2 +-
> > > >   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c           |  3 ++-
> > > >   drivers/gpu/drm/amd/amdgpu/amdgpu_job.c          |  8 +++++--
> > > > -
> > > >   drivers/gpu/drm/amd/amdgpu/amdgpu_job.h          |  3 ++-
> > > >   drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c     |  2 +-
> > > >   drivers/gpu/drm/imagination/pvr_job.c            |  2 +-
> > > >   drivers/gpu/drm/imagination/pvr_queue.c          |  5 +++--
> > > >   drivers/gpu/drm/imagination/paac             |  8 +++++---
> > > >   drivers/gpu/drm/nouveau/nouveau_sched.c          |  3 ++-
> > > >   drivers/gpu/drm/panfrost/panfrost_drv.c          |  2 +-
> > > >   drivers/gpu/drm/panthor/panthor_drv.c            |  3 ++-
> > > >   drivers/gpu/drm/panthor/panthor_mmu.c            |  2 +-
> > > >   drivers/gpu/drm/panthor/panthor_sched.c          |  5 +++--
> > > >   drivers/gpu/drm/panthor/panthor_sched.h          |  3 ++-
> > > >   drivers/gpu/drm/scheduler/sched_fence.c          |  4 ++
> > > >   drivers/gpu/drm/scheduler/sched_internal.h       |  2 +-
> > > >   drivers/gpu/drm/scheduler/sched_main.c           |  6 ++++--
> > > >   drivers/gpu/drm/scheduler/tests/mock_scheduler.c |  2 +-
> > > >   drivers/gpu/drm/v3d/v3d_submit.c                 |  2 +-
> > > >   drivers/gpu/drm/xe/xe_sched_job.c                |  3 ++-
> > > >   include/drm/gpu_scheduler.h                      | 10
> > > > +++++++++-
> > > >   26 files changed, 62 insertions(+), 34 deletions(-)
> > > 
> > > I think last time I asked about what your merge plan for this is,
> > > since
> > > it touches so many drivers. Should I take that?
> > 
> > Based on:
> > 
> > https://drm.pages.freedesktop.org/maintainer-tools/committer/committer-drm-misc.html
> > 
> > "drm-misc is for drm core (non-driver) patches, subsystem-wide
> > refactorings,
> > and small trivial patches all over (including drivers)."
> > 
> > I assume it should go through drm-misc.
> 
> I've addressed your comments and pushed an updated branch to 
> https://gitlab.freedesktop.org/pepp/linux/-/commits/improve_gpu_scheduler_trace_v10
> 
> Any chance to get this merged soon?

I took a look. Looks good!

Be so kind and provide that branch as a v10 so we can conform to the
process. Then I can take them, do some basic smoke tests tomorrow and
then we're good to go. That should now all be good, you've got the
reviews and it has settled.

Thx
P.

> 
> Thanks,
> Pierre-Eric
> 
> 
> 
> > 
> > 
> > > 
> > > Besides one comment below, scheduler bits look fine.
> > > 
> > > > 
> > > > diff --git a/drivers/accel/amdxdna/aie2_ctx.c
> > > > b/drivers/accel/amdxdna/aie2_ctx.c
> > > > index e04549f64d69..3e38a5f637ea 100644
> > > > --- a/drivers/accel/amdxdna/aie2_ctx.c
> > > > +++ b/drivers/accel/amdxdna/aie2_ctx.c
> > > > @@ -848,7 +848,8 @@ int aie2_cmd_submit(struct amdxdna_hwctx
> > > > *hwctx,
> > > > struct amdxdna_sched_job *job,
> > > >           goto up_sem;
> > > >       }
> > > > -    ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
> > > > 1, hwctx);
> > > > +    ret = drm_sched_job_init(&job->base, &hwctx->priv->entity,
> > > > 1, hwctx,
> > > > +                 hwctx->client->filp->client_id);
> > > >       if (ret) {
> > > >           XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
> > > >           goto free_chain;
> > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > > b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > > index 4cec3a873995..1a77ba7036c9 100644
> > > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > > @@ -639,7 +639,7 @@ int amdgpu_amdkfd_submit_ib(struct
> > > > amdgpu_device
> > > > *adev,
> > > >           goto err;
> > > >       }
> > > > -    ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
> > > > +    ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job,
> > > > 0);
> > > >       if (ret)
> > > >           goto err;
> > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > > > b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > > > index 82df06a72ee0..5a231b997d65 100644
> > > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > > > @@ -293,7 +293,8 @@ static int amdgpu_cs_pass1(struct
> > > > amdgpu_cs_parser *p,
> > > >       for (i = 0; i < p->gang_size; ++i) {
> > > >           ret = amdgpu_job_alloc(p->adev, vm, p->entities[i],
> > > > vm,
> > > > -                       num_ibs[i], &p->jobs[i]);
> > > > +                       num_ibs[i], &p->jobs[i],
> > > > +                       p->filp->client_id);
> > > >           if (ret)
> > > >               goto free_all_kdata;
> > > >           p->jobs[i]->enforce_isolation = p->adev-
> > > > > enforce_isolation[fpriv->xcp_id];
> > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> > > > b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> > > > index acb21fc8b3ce..75262ce8db27 100644
> > > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> > > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> > > > @@ -204,7 +204,8 @@ static enum drm_gpu_sched_stat
> > > > amdgpu_job_timedout(struct drm_sched_job *s_job)
> > > >   int amdgpu_job_alloc(struct amdgpu_device *adev, struct
> > > > amdgpu_vm
> > > > *vm,
> > > >                struct drm_sched_entity *entity, void *owner,
> > > > -             unsigned int num_ibs, struct amdgpu_job **job)
> > > > +             unsigned int num_ibs, struct amdgpu_job **job,
> > > > +             u64 drm_client_id)
> > > >   {
> > > >       if (num_ibs == 0)
> > > >           return -EINVAL;
> > > > @@ -222,7 +223,8 @@ int amdgpu_job_alloc(struct amdgpu_device
> > > > *adev,
> > > > struct amdgpu_vm *vm,
> > > >       if (!entity)
> > > >           return 0;
> > > > -    return drm_sched_job_init(&(*job)->base, entity, 1,
> > > > owner);
> > > > +    return drm_sched_job_init(&(*job)->base, entity, 1, owner,
> > > > +                  drm_client_id);
> > > >   }
> > > >   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
> > > > @@ -232,7 +234,7 @@ int amdgpu_job_alloc_with_ib(struct
> > > > amdgpu_device
> > > > *adev,
> > > >   {
> > > >       int r;
> > > > -    r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
> > > > +    r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job,
> > > > 0);
> > > >       if (r)
> > > >           return r;
> > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> > > > b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> > > > index ce6b9ba967ff..5a8bc6342222 100644
> > > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> > > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> > > > @@ -90,7 +90,8 @@ static inline struct amdgpu_ring
> > > > *amdgpu_job_ring(struct amdgpu_job *job)
> > > >   int amdgpu_job_alloc(struct amdgpu_device *adev, struct
> > > > amdgpu_vm
> > > > *vm,
> > > >                struct drm_sched_entity *entity, void *owner,
> > > > -             unsigned int num_ibs, struct amdgpu_job **job);
> > > > +             unsigned int num_ibs, struct amdgpu_job **job,
> > > > +             u64 drm_client_id);
> > > >   int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
> > > >                    struct drm_sched_entity *entity, void
> > > > *owner,
> > > >                    size_t size, enum amdgpu_ib_pool_type
> > > > pool_type,
> > > > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > > > b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > > > index 3c0a5c3e0e3d..76c742328edb 100644
> > > > --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > > > +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
> > > > @@ -534,7 +534,7 @@ int etnaviv_ioctl_gem_submit(struct
> > > > drm_device
> > > > *dev, void *data,
> > > >       ret = drm_sched_job_init(&submit->sched_job,
> > > >                    &ctx->sched_entity[args->pipe],
> > > > -                 1, submit->ctx);
> > > > +                 1, submit->ctx, file->client_id);
> > > >       if (ret)
> > > >           goto err_submit_put;
> > > > diff --git a/drivers/gpu/drm/imagination/pvr_job.c
> > > > b/drivers/gpu/drm/imagination/pvr_job.c
> > > > index 59b334d094fa..7564b0f21b42 100644
> > > > --- a/drivers/gpu/drm/imagination/pvr_job.c
> > > > +++ b/drivers/gpu/drm/imagination/pvr_job.c
> > > > @@ -446,7 +446,7 @@ create_job(struct pvr_device *pvr_dev,
> > > >       if (err)
> > > >           goto err_put_job;
> > > > -    err = pvr_queue_job_init(job);
> > > > +    err = pvr_queue_job_init(job, pvr_file->file->client_id);
> > > >       if (err)
> > > >           goto err_put_job;
> > > > diff --git a/drivers/gpu/drm/imagination/pvr_queue.c
> > > > b/drivers/gpu/drm/imagination/pvr_queue.c
> > > > index 5e9bc0992824..5a41ee79fed6 100644
> > > > --- a/drivers/gpu/drm/imagination/pvr_queue.c
> > > > +++ b/drivers/gpu/drm/imagination/pvr_queue.c
> > > > @@ -1073,6 +1073,7 @@ static int
> > > > pvr_queue_cleanup_fw_context(struct
> > > > pvr_queue *queue)
> > > >   /**
> > > >    * pvr_queue_job_init() - Initialize queue related fields in
> > > > a
> > > > pvr_job object.
> > > >    * @job: The job to initialize.
> > > > + * @drm_client_id: drm_file.client_id submitting the job
> > > >    *
> > > >    * Bind the job to a queue and allocate memory to guarantee
> > > > pvr_queue_job_arm()
> > > >    * and pvr_queue_job_push() can't fail. We also make sure the
> > > > context type is
> > > > @@ -1082,7 +1083,7 @@ static int
> > > > pvr_queue_cleanup_fw_context(struct
> > > > pvr_queue *queue)
> > > >    *  * 0 on success, or
> > > >    *  * An error code if something failed.
> > > >    */
> > > > -int pvr_queue_job_init(struct pvr_job *job)
> > > > +int pvr_queue_job_init(struct pvr_job *job, u64 drm_client_id)
> > > >   {
> > > >       /* Fragment jobs need at least one native fence wait on
> > > > the
> > > > geometry job fence. */
> > > >       u32 min_native_dep_count = job->type ==
> > > > DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
> > > > @@ -1099,7 +1100,7 @@ int pvr_queue_job_init(struct pvr_job
> > > > *job)
> > > >       if (!pvr_cccb_cmdseq_can_fit(&queue->cccb,
> > > > job_cmds_size(job, min_native_dep_count)))
> > > >           return -E2BIG;
> > > > -    err = drm_sched_job_init(&job->base, &queue->entity, 1,
> > > > THIS_MODULE);
> > > > +    err = drm_sched_job_init(&job->base, &queue->entity, 1,
> > > > THIS_MODULE, drm_client_id);
> > > >       if (err)
> > > >           return err;
> > > > diff --git a/drivers/gpu/drm/imagination/pvr_queue.h
> > > > b/drivers/gpu/drm/imagination/pvr_queue.h
> > > > index 93fe9ac9f58c..fc1986d73fc8 100644
> > > > --- a/drivers/gpu/drm/imagination/pvr_queue.h
> > > > +++ b/drivers/gpu/drm/imagination/pvr_queue.h
> > > > @@ -143,7 +143,7 @@ struct pvr_queue {
> > > >   bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
> > > > -int pvr_queue_job_init(struct pvr_job *job);
> > > > +int pvr_queue_job_init(struct pvr_job *job, u64
> > > > drm_client_id);
> > > >   void pvr_queue_job_cleanup(struct pvr_job *job);
> > > > diff --git a/drivers/gpu/drm/lima/lima_gem.c
> > > > b/drivers/gpu/drm/lima/lima_gem.c
> > > > index 5deec673c11e..9722b847a539 100644
> > > > --- a/drivers/gpu/drm/lima/lima_gem.c
> > > > +++ b/drivers/gpu/drm/lima/lima_gem.c
> > > > @@ -341,7 +341,7 @@ int lima_gem_submit(struct drm_file *file,
> > > > struct
> > > > lima_submit *submit)
> > > >       err = lima_sched_task_init(
> > > >           submit->task, submit->ctx->context + submit->pipe,
> > > > -        bos, submit->nr_bos, vm);
> > > > +        bos, submit->nr_bos, vm, file->client_id);
> > > >       if (err)
> > > >           goto err_out1;
> > > > diff --git a/drivers/gpu/drm/lima/lima_sched.c
> > > > b/drivers/gpu/drm/lima/lima_sched.c
> > > > index 7934098e651b..954f4325b859 100644
> > > > --- a/drivers/gpu/drm/lima/lima_sched.c
> > > > +++ b/drivers/gpu/drm/lima/lima_sched.c
> > > > @@ -113,7 +113,8 @@ static inline struct lima_sched_pipe
> > > > *to_lima_pipe(struct drm_gpu_scheduler *sch
> > > >   int lima_sched_task_init(struct lima_sched_task *task,
> > > >                struct lima_sched_context *context,
> > > >                struct lima_bo **bos, int num_bos,
> > > > -             struct lima_vm *vm)
> > > > +             struct lima_vm *vm,
> > > > +             u64 drm_client_id)
> > > >   {
> > > >       int err, i;
> > > > @@ -124,7 +125,8 @@ int lima_sched_task_init(struct
> > > > lima_sched_task
> > > > *task,
> > > >       for (i = 0; i < num_bos; i++)
> > > >           drm_gem_object_get(&bos[i]->base.base);
> > > > -    err = drm_sched_job_init(&task->base, &context->base, 1,
> > > > vm);
> > > > +    err = drm_sched_job_init(&task->base, &context->base, 1,
> > > > vm,
> > > > +                 drm_client_id);
> > > >       if (err) {
> > > >           kfree(task->bos);
> > > >           return err;
> > > > diff --git a/drivers/gpu/drm/lima/lima_sched.h
> > > > b/drivers/gpu/drm/lima/lima_sched.h
> > > > index 85b23ba901d5..1a08faf8a529 100644
> > > > --- a/drivers/gpu/drm/lima/lima_sched.h
> > > > +++ b/drivers/gpu/drm/lima/lima_sched.h
> > > > @@ -88,7 +88,8 @@ struct lima_sched_pipe {
> > > >   int lima_sched_task_init(struct lima_sched_task *task,
> > > >                struct lima_sched_context *context,
> > > >                struct lima_bo **bos, int num_bos,
> > > > -             struct lima_vm *vm);
> > > > +             struct lima_vm *vm,
> > > > +             u64 drm_client_id);
> > > >   void lima_sched_task_fini(struct lima_sched_task *task);
> > > >   int lima_sched_context_init(struct lima_sched_pipe *pipe,
> > > > diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c
> > > > b/drivers/gpu/drm/msm/msm_gem_submit.c
> > > > index 3e9aa2cc38ef..d9be0fe3d674 100644
> > > > --- a/drivers/gpu/drm/msm/msm_gem_submit.c
> > > > +++ b/drivers/gpu/drm/msm/msm_gem_submit.c
> > > > @@ -30,7 +30,7 @@
> > > >   static struct msm_gem_submit *submit_create(struct drm_device
> > > > *dev,
> > > >           struct msm_gpu *gpu,
> > > >           struct msm_gpu_submitqueue *queue, uint32_t nr_bos,
> > > > -        uint32_t nr_cmds)
> > > > +        uint32_t nr_cmds, u64 drm_client_id)
> > > >   {
> > > >       static atomic_t ident = ATOMIC_INIT(0);
> > > >       struct msm_gem_submit *submit;
> > > > @@ -54,7 +54,8 @@ static struct msm_gem_submit
> > > > *submit_create(struct
> > > > drm_device *dev,
> > > >           return ERR_PTR(ret);
> > > >       }
> > > > -    ret = drm_sched_job_init(&submit->base, queue->entity, 1,
> > > > queue);
> > > > +    ret = drm_sched_job_init(&submit->base, queue->entity, 1,
> > > > queue,
> > > > +                 drm_client_id);
> > > >       if (ret) {
> > > >           kfree(submit->hw_fence);
> > > >           kfree(submit);
> > > > @@ -693,7 +694,8 @@ int msm_ioctl_gem_submit(struct drm_device
> > > > *dev,
> > > > void *data,
> > > >           }
> > > >       }
> > > > -    submit = submit_create(dev, gpu, queue, args->nr_bos,
> > > > args-
> > > > > nr_cmds);
> > > > +    submit = submit_create(dev, gpu, queue, args->nr_bos,
> > > > args-
> > > > > nr_cmds,
> > > > +                   file->client_id);
> > > >       if (IS_ERR(submit)) {
> > > >           ret = PTR_ERR(submit);
> > > >           goto out_post_unlock;
> > > > diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.c
> > > > b/drivers/gpu/drm/nouveau/nouveau_sched.c
> > > > index d326e55d2d24..460a5fb02412 100644
> > > > --- a/drivers/gpu/drm/nouveau/nouveau_sched.c
> > > > +++ b/drivers/gpu/drm/nouveau/nouveau_sched.c
> > > > @@ -87,7 +87,8 @@ nouveau_job_init(struct nouveau_job *job,
> > > >       }
> > > >       ret = drm_sched_job_init(&job->base, &sched->entity,
> > > > -                 args->credits, NULL);
> > > > +                 args->credits, NULL,
> > > > +                 job->file_priv->client_id);
> > > >       if (ret)
> > > >           goto err_free_chains;
> > > > diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
> > > > b/drivers/gpu/drm/panfrost/panfrost_drv.c
> > > > index b87f83e94eda..d5c2c6530ed8 100644
> > > > --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
> > > > +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
> > > > @@ -312,7 +312,7 @@ static int panfrost_ioctl_submit(struct
> > > > drm_device *dev, void *data,
> > > >       ret = drm_sched_job_init(&job->base,
> > > >                    &file_priv->sched_entity[slot],
> > > > -                 1, NULL);
> > > > +                 1, NULL, file->client_id);
> > > >       if (ret)
> > > >           goto out_put_job;
> > > > diff --git a/drivers/gpu/drm/panthor/panthor_drv.c
> > > > b/drivers/gpu/drm/panthor/panthor_drv.c
> > > > index 06fe46e32073..bd8e1900c919 100644
> > > > --- a/drivers/gpu/drm/panthor/panthor_drv.c
> > > > +++ b/drivers/gpu/drm/panthor/panthor_drv.c
> > > > @@ -989,7 +989,8 @@ static int
> > > > panthor_ioctl_group_submit(struct
> > > > drm_device *ddev, void *data,
> > > >           const struct drm_panthor_queue_submit *qsubmit =
> > > > &jobs_args[i];
> > > >           struct drm_sched_job *job;
> > > > -        job = panthor_job_create(pfile, args->group_handle,
> > > > qsubmit);
> > > > +        job = panthor_job_create(pfile, args->group_handle,
> > > > qsubmit,
> > > > +                     file->client_id);
> > > >           if (IS_ERR(job)) {
> > > >               ret = PTR_ERR(job);
> > > >               goto out_cleanup_submit_ctx;
> > > > diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c
> > > > b/drivers/gpu/drm/panthor/panthor_mmu.c
> > > > index 12a02e28f50f..e0c79bd2d173 100644
> > > > --- a/drivers/gpu/drm/panthor/panthor_mmu.c
> > > > +++ b/drivers/gpu/drm/panthor/panthor_mmu.c
> > > > @@ -2516,7 +2516,7 @@ panthor_vm_bind_job_create(struct
> > > > drm_file
> > > > *file,
> > > >       kref_init(&job->refcount);
> > > >       job->vm = panthor_vm_get(vm);
> > > > -    ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm);
> > > > +    ret = drm_sched_job_init(&job->base, &vm->entity, 1, vm,
> > > > file->client_id);
> > > >       if (ret)
> > > >           goto err_put_job;
> > > > diff --git a/drivers/gpu/drm/panthor/panthor_sched.c
> > > > b/drivers/gpu/drm/panthor/panthor_sched.c
> > > > index 446ec780eb4a..2af860c9068a 100644
> > > > --- a/drivers/gpu/drm/panthor/panthor_sched.c
> > > > +++ b/drivers/gpu/drm/panthor/panthor_sched.c
> > > > @@ -3729,7 +3729,8 @@ struct panthor_vm *panthor_job_vm(struct
> > > > drm_sched_job *sched_job)
> > > >   struct drm_sched_job *
> > > >   panthor_job_create(struct panthor_file *pfile,
> > > >              u16 group_handle,
> > > > -           const struct drm_panthor_queue_submit *qsubmit)
> > > > +           const struct drm_panthor_queue_submit *qsubmit,
> > > > +           u64 drm_client_id)
> > > >   {
> > > >       struct panthor_group_pool *gpool = pfile->groups;
> > > >       struct panthor_job *job;
> > > > @@ -3801,7 +3802,7 @@ panthor_job_create(struct panthor_file
> > > > *pfile,
> > > >       ret = drm_sched_job_init(&job->base,
> > > >                    &job->group->queues[job-
> > > > > queue_idx]->entity,
> > > > -                 credits, job->group);
> > > > +                 credits, job->group,
> > > > drm_client_id);
> > > >       if (ret)
> > > >           goto err_put_job;
> > > > diff --git a/drivers/gpu/drm/panthor/panthor_sched.h
> > > > b/drivers/gpu/drm/panthor/panthor_sched.h
> > > > index e650a445cf50..742b0b4ff3a3 100644
> > > > --- a/drivers/gpu/drm/panthor/panthor_sched.h
> > > > +++ b/drivers/gpu/drm/panthor/panthor_sched.h
> > > > @@ -29,7 +29,8 @@ int panthor_group_get_state(struct
> > > > panthor_file
> > > > *pfile,
> > > >   struct drm_sched_job *
> > > >   panthor_job_create(struct panthor_file *pfile,
> > > >              u16 group_handle,
> > > > -           const struct drm_panthor_queue_submit *qsubmit);
> > > > +           const struct drm_panthor_queue_submit *qsubmit,
> > > > +           u64 drm_client_id);
> > > >   struct drm_sched_job *panthor_job_get(struct drm_sched_job
> > > > *job);
> > > >   struct panthor_vm *panthor_job_vm(struct drm_sched_job
> > > > *sched_job);
> > > >   void panthor_job_put(struct drm_sched_job *job);
> > > > diff --git a/drivers/gpu/drm/scheduler/sched_fence.c
> > > > b/drivers/gpu/drm/scheduler/sched_fence.c
> > > > index e971528504a5..d208d384d38d 100644
> > > > --- a/drivers/gpu/drm/scheduler/sched_fence.c
> > > > +++ b/drivers/gpu/drm/scheduler/sched_fence.c
> > > > @@ -206,7 +206,8 @@ struct drm_sched_fence
> > > > *to_drm_sched_fence(struct
> > > > dma_fence *f)
> > > >   EXPORT_SYMBOL(to_drm_sched_fence);
> > > >   struct drm_sched_fence *drm_sched_fence_alloc(struct
> > > > drm_sched_entity *entity,
> > > > -                          void *owner)
> > > > +                          void *owner,
> > > > +                          u64 drm_client_id)
> > > >   {
> > > >       struct drm_sched_fence *fence = NULL;
> > > > @@ -215,6 +216,7 @@ struct drm_sched_fence
> > > > *drm_sched_fence_alloc(struct drm_sched_entity *entity,
> > > >           return NULL;
> > > >       fence->owner = owner;
> > > > +    fence->drm_client_id = drm_client_id;
> > > >       spin_lock_init(&fence->lock);
> > > >       return fence;
> > > > diff --git a/drivers/gpu/drm/scheduler/sched_internal.h
> > > > b/drivers/gpu/drm/scheduler/sched_internal.h
> > > > index 599cf6e1bb74..7ea5a6736f98 100644
> > > > --- a/drivers/gpu/drm/scheduler/sched_internal.h
> > > > +++ b/drivers/gpu/drm/scheduler/sched_internal.h
> > > > @@ -24,7 +24,7 @@ void drm_sched_entity_select_rq(struct
> > > > drm_sched_entity *entity);
> > > >   struct drm_sched_job *drm_sched_entity_pop_job(struct
> > > > drm_sched_entity *entity);
> > > >   struct drm_sched_fence *drm_sched_fence_alloc(struct
> > > > drm_sched_entity *s_entity,
> > > > -                          void *owner);
> > > > +                          void *owner, u64
> > > > drm_client_id);
> > > >   void drm_sched_fence_init(struct drm_sched_fence *fence,
> > > >                 struct drm_sched_entity *entity);
> > > >   void drm_sched_fence_free(struct drm_sched_fence *fence);
> > > > diff --git a/drivers/gpu/drm/scheduler/sched_main.c
> > > > b/drivers/gpu/drm/scheduler/sched_main.c
> > > > index 829579c41c6b..60611618f3ab 100644
> > > > --- a/drivers/gpu/drm/scheduler/sched_main.c
> > > > +++ b/drivers/gpu/drm/scheduler/sched_main.c
> > > > @@ -764,6 +764,7 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
> > > >    * @credits: the number of credits this job contributes to
> > > > the
> > > > schedulers
> > > >    * credit limit
> > > >    * @owner: job owner for debugging
> > > > + * @drm_client_id: drm_file.client_id of the owner
> > > 
> > > For the docu generation to link that properly it must be written
> > > as
> > > 
> > > &struct drm_file.client_id
> > 
> > Noted.
> > 
> > > 
> > > Besides, if this were an optional parameter, one should document
> > > it.
> > > I'm not sure if it is, I haven't used these client_id's before.
> > 
> > Passing an invalid client_id would only cause the trace events to
> > print the invalid client_id.
> > 
> > Thanks,
> > Pierre-Eric
> > 
> > 
> > > 
> > > P.
> > > 
> > > >    *
> > > >    * Refer to drm_sched_entity_push_job() documentation
> > > >    * for locking considerations.
> > > > @@ -784,7 +785,8 @@ EXPORT_SYMBOL(drm_sched_resubmit_jobs);
> > > >    */
> > > >   int drm_sched_job_init(struct drm_sched_job *job,
> > > >                  struct drm_sched_entity *entity,
> > > > -               u32 credits, void *owner)
> > > > +               u32 credits, void *owner,
> > > > +               uint64_t drm_client_id)
> > > >   {
> > > >       if (!entity->rq) {
> > > >           /* This will most likely be followed by missing
> > > > frames
> > > > @@ -810,7 +812,7 @@ int drm_sched_job_init(struct drm_sched_job
> > > > *job,
> > > >       job->entity = entity;
> > > >       job->credits = credits;
> > > > -    job->s_fence = drm_sched_fence_alloc(entity, owner);
> > > > +    job->s_fence = drm_sched_fence_alloc(entity, owner,
> > > > drm_client_id);
> > > >       if (!job->s_fence)
> > > >           return -ENOMEM;
> > > > diff --git a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> > > > b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> > > > index f999c8859cf7..09ffbdb32d76 100644
> > > > --- a/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> > > > +++ b/drivers/gpu/drm/scheduler/tests/mock_scheduler.c
> > > > @@ -35,7 +35,7 @@ drm_mock_sched_entity_new(struct kunit *test,
> > > >       ret = drm_sched_entity_init(&entity->base,
> > > >                       priority,
> > > >                       &drm_sched, 1,
> > > > -                    NULL);
> > > > +                    NULL, 1);
> > > >       KUNIT_ASSERT_EQ(test, ret, 0);
> > > >       entity->test = test;
> > > > diff --git a/drivers/gpu/drm/v3d/v3d_submit.c
> > > > b/drivers/gpu/drm/v3d/v3d_submit.c
> > > > index 4ff5de46fb22..5171ffe9012d 100644
> > > > --- a/drivers/gpu/drm/v3d/v3d_submit.c
> > > > +++ b/drivers/gpu/drm/v3d/v3d_submit.c
> > > > @@ -169,7 +169,7 @@ v3d_job_init(struct v3d_dev *v3d, struct
> > > > drm_file
> > > > *file_priv,
> > > >       job->file = file_priv;
> > > >       ret = drm_sched_job_init(&job->base, &v3d_priv-
> > > > > sched_entity[queue],
> > > > -                 1, v3d_priv);
> > > > +                 1, v3d_priv, file_priv->client_id);
> > > >       if (ret)
> > > >           return ret;
> > > > diff --git a/drivers/gpu/drm/xe/xe_sched_job.c
> > > > b/drivers/gpu/drm/xe/xe_sched_job.c
> > > > index 1905ca590965..f4679cb9a56b 100644
> > > > --- a/drivers/gpu/drm/xe/xe_sched_job.c
> > > > +++ b/drivers/gpu/drm/xe/xe_sched_job.c
> > > > @@ -113,7 +113,8 @@ struct xe_sched_job
> > > > *xe_sched_job_create(struct
> > > > xe_exec_queue *q,
> > > >       kref_init(&job->refcount);
> > > >       xe_exec_queue_get(job->q);
> > > > -    err = drm_sched_job_init(&job->drm, q->entity, 1, NULL);
> > > > +    err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
> > > > +                 q->xef->drm->client_id);
> > > >       if (err)
> > > >           goto err_free;
> > > > diff --git a/include/drm/gpu_scheduler.h
> > > > b/include/drm/gpu_scheduler.h
> > > > index 1a7e377d4cbb..6fe3b4c0cffb 100644
> > > > --- a/include/drm/gpu_scheduler.h
> > > > +++ b/include/drm/gpu_scheduler.h
> > > > @@ -305,6 +305,13 @@ struct drm_sched_fence {
> > > >            * @owner: job owner for debugging
> > > >            */
> > > >       void                *owner;
> > > > +
> > > > +    /**
> > > > +     * @drm_client_id:
> > > > +     *
> > > > +     * The client_id of the drm_file which owns the job.
> > > > +     */
> > > > +    uint64_t            drm_client_id;
> > > >   };
> > > >   struct drm_sched_fence *to_drm_sched_fence(struct dma_fence
> > > > *f);
> > > > @@ -629,7 +636,8 @@ drm_sched_pick_best(struct
> > > > drm_gpu_scheduler
> > > > **sched_list,
> > > >   int drm_sched_job_init(struct drm_sched_job *job,
> > > >                  struct drm_sched_entity *entity,
> > > > -               u32 credits, void *owner);
> > > > +               u32 credits, void *owner,
> > > > +               u64 drm_client_id);
> > > >   void drm_sched_job_arm(struct drm_sched_job *job);
> > > >   void drm_sched_entity_push_job(struct drm_sched_job
> > > > *sched_job);
> > > >   int drm_sched_job_add_dependency(struct drm_sched_job *job,