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| author | Christian König <christian.koenig@amd.com> | 2016-06-01 15:10:02 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-02 08:27:41 +0200 |
| commit | 76bf0db5543976ef50362db7071da367cb118532 (patch) | |
| tree | c8f94084239df5d095c80d87d423d44d95081379 /drivers/dma-buf/Makefile | |
| parent | drm: Update obsolete information from {enable/disable}_vblank hooks. (diff) | |
| download | linux-76bf0db5543976ef50362db7071da367cb118532.tar.xz linux-76bf0db5543976ef50362db7071da367cb118532.zip | |
dma-buf/fence: make fence context 64 bit v2
Fence contexts are created on the fly (for example) by the GPU scheduler used
in the amdgpu driver as a result of an userspace request. Because of this
userspace could in theory force a wrap around of the 32bit context number
if it doesn't behave well.
Avoid this by increasing the context number to 64bits. This way even when
userspace manages to allocate a billion contexts per second it takes more
than 500 years for the context number to wrap around.
v2: fix printf formats as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464786612-5010-2-git-send-email-deathsimple@vodafone.de
Diffstat (limited to 'drivers/dma-buf/Makefile')
0 files changed, 0 insertions, 0 deletions