udmabuf: implement begin_cpu_access/end_cpu_access hooks

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With the misc device, we should end up using the result of
get_arch_dma_ops(..) or dma-direct ops.

This can allow us to have WC mappings in the guest after
synchronization.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20191203013627.85991-4-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

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Gurchetan Singh 2019-12-02 17:36:27 -08:00 • committed by Gerd Hoffmann

parent 17a7ce2034

commit 284562e1f3

1 changed files with 39 additions and 0 deletions

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drivers/dma-buf/udmabuf.c

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