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TencentOS-kernel/drivers/gpu/drm/panfrost
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Boris Brezillon 8385c05970 drm/panfrost: Fix a deadlock between the shrinker and madvise path 
commit 7d2d6d01293e6d9b42a6cb410be4158571f7fe9d upstream.

panfrost_ioctl_madvise() and panfrost_gem_purge() acquire the mappings
and shmem locks in different orders, thus leading to a potential
the mappings lock first.

Fixes: bdefca2d8dc0 ("drm/panfrost: Add the panfrost_gem_mapping concept")
Cc: <stable@vger.kernel.org>
Cc: Christian Hewitt <christianshewitt@gmail.com>
Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201101174016.839110-1-boris.brezillon@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-03-16 16:40:30 +08:00
..
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
TODO Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_devfreq.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_devfreq.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_device.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_device.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_drv.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_features.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_gem.c drm/panfrost: Fix a deadlock between the shrinker and madvise path 2021-03-16 16:40:30 +08:00
panfrost_gem.h drm/panfrost: Fix a deadlock between the shrinker and madvise path 2021-03-16 16:40:30 +08:00
panfrost_gem_shrinker.c drm/panfrost: Fix a deadlock between the shrinker and madvise path 2021-03-16 16:40:30 +08:00
panfrost_gpu.c drm/panfrost: add amlogic reset quirk callback 2021-03-16 16:39:19 +08:00
panfrost_gpu.h drm/panfrost: add amlogic reset quirk callback 2021-03-16 16:39:19 +08:00
panfrost_issues.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_job.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_job.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_mmu.c drm/panfrost: Use kvfree() to free bo->sgts 2021-03-16 16:34:23 +08:00
panfrost_mmu.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_perfcnt.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_perfcnt.h Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
panfrost_regs.h drm/panfrost: add amlogic reset quirk callback 2021-03-16 16:39:19 +08:00