linux-kernel - [PATCH v7 6/7] drm/sched: add the drm_client_id to the drm_sched_run/exec

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Message-ID: <20250131110328.706695-7-pierre-eric.pelloux-prayer@amd.com>
Date: Fri, 31 Jan 2025 12:03:04 +0100
From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>
To: Luben Tuikov <ltuikov89@...il.com>, Matthew Brost
	<matthew.brost@...el.com>, Danilo Krummrich <dakr@...nel.org>, "Philipp
 Stanner" <pstanner@...hat.com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>
CC: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v7 6/7] drm/sched: add the drm_client_id to the drm_sched_run/exec_job events

For processes with multiple drm_file instances, the drm_client_id is
the only way to map jobs back to their unique owner.

It's even more useful if drm client_name is set, because now a tool
can map jobs to the client name instead of only having access to
the process name.

Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>
---
 drivers/gpu/drm/scheduler/gpu_scheduler_trace.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
index ca19cd9a146a..5c740cb80037 100644
--- a/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
+++ b/drivers/gpu/drm/scheduler/gpu_scheduler_trace.h
@@ -71,6 +71,7 @@ DECLARE_EVENT_CLASS(drm_sched_job,
 			     __field(uint64_t, fence_seqno)
 			     __field(int, n_deps)
 			     __dynamic_array(u64, deps, dep_count * 2)
+			     __field(u64, client_id)
 			     ),
 
 	    TP_fast_assign(
@@ -93,12 +94,14 @@ DECLARE_EVENT_CLASS(drm_sched_job,
 					dyn_arr[2 * idx + 1] = fence->seqno;
 				}
 			   }
+			   __entry->client_id = sched_job->s_fence->drm_client_id;
 			   ),
-	    TP_printk("dev=%s, id=%llu, fence=%llu:%llu, ring=%s, job count:%u, hw job count:%d, dependencies:%s",
+	    TP_printk("dev=%s, id=%llu, fence=%llu:%llu, ring=%s, job count:%u, hw job count:%d, dependencies:%s, client_id:%lld",
 		      __get_str(dev), __entry->id,
 		      __entry->fence_context, __entry->fence_seqno, __get_str(name),
 		      __entry->job_count, __entry->hw_job_count,
-		      __print_dma_fence_array(p, __get_dynamic_array(deps), __entry->n_deps))
+		      __print_dma_fence_array(p, __get_dynamic_array(deps), __entry->n_deps),
+		      __entry->client_id)
 );
 
 DEFINE_EVENT(drm_sched_job, drm_sched_job,
-- 
2.47.1