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author | Steven Price <steven.price@arm.com> | 2020-10-29 20:00:47 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-17 16:16:53 +0300 |
commit | 51495b719515ddae417e4bafc7e100c34833af4b (patch) | |
tree | 6830dda5c0a2d45ed696ff2fc2c19e09800e723c | |
parent | 9d7751a39a19b0090300b2b0498e397f9047e125 (diff) | |
download | linux-51495b719515ddae417e4bafc7e100c34833af4b.tar.xz |
drm/panfrost: Don't corrupt the queue mutex on open/close
[ Upstream commit a17d609e3e216c406f7c0cec2a94086a4401ac06 ]
The mutex within the panfrost_queue_state should have the lifetime of
the queue, however it was erroneously initialised/destroyed during
panfrost_job_{open,close} which is called every time a client
opens/closes the drm node.
Move the initialisation/destruction to panfrost_job_{init,fini} where it
belongs.
Fixes: 1a11a88cfd9a ("drm/panfrost: Fix job timeout handling")
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201029170047.30564-1-steven.price@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_job.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c index 1ce2001106e5..517dfb247a80 100644 --- a/drivers/gpu/drm/panfrost/panfrost_job.c +++ b/drivers/gpu/drm/panfrost/panfrost_job.c @@ -617,6 +617,8 @@ int panfrost_job_init(struct panfrost_device *pfdev) } for (j = 0; j < NUM_JOB_SLOTS; j++) { + mutex_init(&js->queue[j].lock); + js->queue[j].fence_context = dma_fence_context_alloc(1); ret = drm_sched_init(&js->queue[j].sched, @@ -647,8 +649,10 @@ void panfrost_job_fini(struct panfrost_device *pfdev) job_write(pfdev, JOB_INT_MASK, 0); - for (j = 0; j < NUM_JOB_SLOTS; j++) + for (j = 0; j < NUM_JOB_SLOTS; j++) { drm_sched_fini(&js->queue[j].sched); + mutex_destroy(&js->queue[j].lock); + } } @@ -660,7 +664,6 @@ int panfrost_job_open(struct panfrost_file_priv *panfrost_priv) int ret, i; for (i = 0; i < NUM_JOB_SLOTS; i++) { - mutex_init(&js->queue[i].lock); sched = &js->queue[i].sched; ret = drm_sched_entity_init(&panfrost_priv->sched_entity[i], DRM_SCHED_PRIORITY_NORMAL, &sched, @@ -677,10 +680,8 @@ void panfrost_job_close(struct panfrost_file_priv *panfrost_priv) struct panfrost_job_slot *js = pfdev->js; int i; - for (i = 0; i < NUM_JOB_SLOTS; i++) { + for (i = 0; i < NUM_JOB_SLOTS; i++) drm_sched_entity_destroy(&panfrost_priv->sched_entity[i]); - mutex_destroy(&js->queue[i].lock); - } } int panfrost_job_is_idle(struct panfrost_device *pfdev) |