drm/tegra: prime: Implement ->{begin,end}_cpu_access()

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These callbacks allow the exporter to swap in and pin the backing
storage for buffers as well as invalidate the cache in preparation for
accessing the buffer from the CPU, and flush the cache and unpin the
backing storage when the CPU is done modifying the buffer.

Signed-off-by: Thierry Reding <treding@nvidia.com>

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Thierry Reding 2017-12-13 12:25:14 +01:00

parent bd43c9f0fa

commit 27e92f1f16

1 changed files with 30 additions and 0 deletions

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drivers/gpu/drm/tegra/gem.c

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