Dmitry Osipenko 03dec92c4f drm/scheduler: Fix lockup in drm_sched_entity_kill() ... The drm_sched_entity_kill() is invoked twice by drm_sched_entity_destroy() while userspace process is exiting or being killed. First time it's invoked when sched entity is flushed and second time when entity is released. This causes a lockup within wait_for_completion(entity_idle) due to how completion API works. Calling wait_for_completion() more times than complete() was invoked is a error condition that causes lockup because completion internally uses counter for complete/wait calls. The complete_all() must be used instead in such cases. This patch fixes lockup of Panfrost driver that is reproducible by killing any application in a middle of 3d drawing operation. Fixes: 2fdb8a8f07 ("drm/scheduler: rework entity flush, kill and fini") Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Reviewed-by: Christian König <christian.koenig@amd.com> Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com> # Steam Deck Link: https://patchwork.freedesktop.org/patch/msgid/20221123001303.533968-1-dmitry.osipenko@collabora.com		2023-01-02 17:45:18 +03:00
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gpu_scheduler_trace.h	drm/sched: use __string in tracepoints	2022-04-26 15:11:00 -04:00
Makefile
sched_entity.c	drm/scheduler: Fix lockup in drm_sched_entity_kill()	2023-01-02 17:45:18 +03:00
sched_fence.c	drm/sched: Fix drm_sched_fence_free() so it can be passed an uninitialized fence	2021-09-07 09:58:26 +02:00
sched_main.c	drm/scheduler: Fix lockup in drm_sched_entity_kill()	2023-01-02 17:45:18 +03:00