Commit e48123c6 authored by Chia-I Wu's avatar Chia-I Wu Committed by Steven Price
Browse files

panthor: dump task pid and comm on gpu errors 



It is useful to know which tasks cause gpu errors.

Signed-off-by: default avatarChia-I Wu <olvaffe@gmail.com>
Reviewed-by: default avatarSteven Price <steven.price@arm.com>
Signed-off-by: default avatarSteven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250718063816.1452123-4-olvaffe@gmail.com
parent 33b9cb6d

drivers/gpu/drm/panthor/panthor_sched.c

+19 −5
Original line number Diff line number Diff line
@@ -1364,8 +1364,12 @@ cs_slot_process_fatal_event_locked(struct panthor_device *ptdev, 
	fatal = cs_iface->output->fatal;

	info = cs_iface->output->fatal_info;



	if (group)

	if (group) {

		drm_warn(&ptdev->base, "CS_FATAL: pid=%d, comm=%s\n",

			 group->task_info.pid, group->task_info.comm);



		group->fatal_queues |= BIT(cs_id);

	}



	if (CS_EXCEPTION_TYPE(fatal) == DRM_PANTHOR_EXCEPTION_CS_UNRECOVERABLE) {

		/* If this exception is unrecoverable, queue a reset, and make
@@ -1425,6 +1429,11 @@ cs_slot_process_fault_event_locked(struct panthor_device *ptdev, 
		spin_unlock(&queue->fence_ctx.lock);

	}



	if (group) {

		drm_warn(&ptdev->base, "CS_FAULT: pid=%d, comm=%s\n",

			 group->task_info.pid, group->task_info.comm);

	}



	drm_warn(&ptdev->base,

		 "CSG slot %d CS slot: %d\n"

		 "CS_FAULT.EXCEPTION_TYPE: 0x%x (%s)\n"
@@ -1641,11 +1650,15 @@ csg_slot_process_progress_timer_event_locked(struct panthor_device *ptdev, u32 c 


	lockdep_assert_held(&sched->lock);



	drm_warn(&ptdev->base, "CSG slot %d progress timeout\n", csg_id);



	group = csg_slot->group;

	if (!drm_WARN_ON(&ptdev->base, !group))

	if (!drm_WARN_ON(&ptdev->base, !group)) {

		drm_warn(&ptdev->base, "CSG_PROGRESS_TIMER_EVENT: pid=%d, comm=%s\n",

			 group->task_info.pid, group->task_info.comm);



		group->timedout = true;

	}



	drm_warn(&ptdev->base, "CSG slot %d progress timeout\n", csg_id);



	sched_queue_delayed_work(sched, tick, 0);

}
@@ -3227,7 +3240,8 @@ queue_timedout_job(struct drm_sched_job *sched_job) 
	struct panthor_scheduler *sched = ptdev->scheduler;

	struct panthor_queue *queue = group->queues[job->queue_idx];



	drm_warn(&ptdev->base, "job timeout\n");

	drm_warn(&ptdev->base, "job timeout: pid=%d, comm=%s, seqno=%llu\n",

		 group->task_info.pid, group->task_info.comm, job->done_fence->seqno);



	drm_WARN_ON(&ptdev->base, atomic_read(&sched->reset.in_progress));