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From: Bert Karwatzki <spasswolf@web.de>
To: Luben Tuikov <ltuikov89@gmail.com>
Cc: robdclark@chromium.org, sarah.walker@imgtec.com,
	ltuikov@yahoo.com, ketil.johnsen@arm.com, lina@asahilina.net,
	mcanal@igalia.com, Liviu.Dudau@arm.com,
	dri-devel@lists.freedesktop.org, christian.koenig@amd.com,
	boris.brezillon@collabora.com, dakr@redhat.com,
	Bert Karwatzki <spasswolf@web.de>,
	intel-xe@lists.freedesktop.org, faith.ekstrand@collabora.com,
	donald.robson@imgtec.com
Subject: [Intel-xe] [PATCH] Revert "drm/sched: Qualify drm_sched_wakeup() by drm_sched_entity_is_ready()"
Date: Mon, 27 Nov 2023 13:21:40 +0100	[thread overview]
Message-ID: <20231127122147.82970-1-spasswolf@web.de> (raw)
In-Reply-To: 6273fadf-267a-4965-82ab-89c5b3f28cf2@gmail.com

Commit f3123c25 (in combination with the use of work queues by the gpu
scheduler) leads to random lock ups of the GUI [1,2].

This is not a complete revert of commit f3123c25 as drm_sched_wakeup
still needs its entity argument to pass it to drm_sched_can_queue.

[1] https://gitlab.freedesktop.org/drm/amd/-/issues/2994
[2] https://lists.freedesktop.org/archives/dri-devel/2023-November/431606.html

This reverts commit f3123c2590005c5ff631653d31428e40cd10c618.
---
 drivers/gpu/drm/scheduler/sched_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 682aebe96db7..550492a7a031 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -1029,9 +1029,8 @@ EXPORT_SYMBOL(drm_sched_job_cleanup);
 void drm_sched_wakeup(struct drm_gpu_scheduler *sched,
 		      struct drm_sched_entity *entity)
 {
-	if (drm_sched_entity_is_ready(entity))
-		if (drm_sched_can_queue(sched, entity))
-			drm_sched_run_job_queue(sched);
+	if (drm_sched_can_queue(sched, entity))
+		drm_sched_run_job_queue(sched);
 }

 /**
--
2.43.0


             reply	other threads:[~2023-11-27 14:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-27 12:21 Bert Karwatzki [this message]
  -- strict thread matches above, loose matches on Subject: below --
2023-11-09 23:49 [Intel-xe] [PATCH] drm/sched: Don't disturb the entity when in RR-mode scheduling Luben Tuikov
2023-11-27 13:30 ` [Intel-xe] [PATCH] Revert "drm/sched: Qualify drm_sched_wakeup() by drm_sched_entity_is_ready()" Bert Karwatzki
2023-11-27 15:14   ` Luben Tuikov

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