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path: root/drivers/dma-buf/dma-fence-unwrap.c
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2022-07-14dma-buf: revert "return only unsignaled fences in dma_fence_unwrap_for_each v3"Christian König1-1/+2
This reverts commit 8f61973718485f3e89bc4f408f929048b7b47c83. It turned out that this is not correct. Especially the sync_file info IOCTL needs to see even signaled fences to correctly report back their status to userspace. Instead add the filter in the merge function again where it makes sense. Signed-off-by: Christian König <christian.koenig@amd.com> Tested-by: Karolina Drobnik <karolina.drobnik@intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220712102849.1562-1-christian.koenig@amd.com
2022-05-30dma-buf: generalize dma_fence unwrap & merging v3Christian König1-0/+103
Introduce a dma_fence_unwrap_merge() macro which allows to unwrap fences which potentially can be containers as well and then merge them back together into a flat dma_fence_array. v2: rename the function, add some more comments about how the wrapper is used, move filtering of signaled fences into the unwrap iterator, add complex selftest which covers more cases. v3: fix signaled fence filtering once more Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220518135844.3338-5-christian.koenig@amd.com
2022-05-30dma-buf: cleanup dma_fence_unwrap implementationChristian König1-0/+59
Move the code from the inline functions into exported functions. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220518135844.3338-3-christian.koenig@amd.com