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panthor: dump task pid and comm on gpu errors

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It is useful to know which tasks cause gpu errors.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250718063816.1452123-4-olvaffe@gmail.com
This commit is contained in:
Chia-I Wu
2025-07-17 23:38:16 -07:00
committed by Steven Price
parent 33b9cb6dcd
commit e48123c607
1 changed files with 19 additions and 5 deletions
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24
drivers/gpu/drm/panthor/panthor_sched.c
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@@ -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));