gpu: ion: Add support for sharing buffers with dma buf kernel handles

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Currently ion can only share buffers with dma buf fd's. Fd's can not be
used inside the kernel as they are process specific so support for
sharing buffers with dma buf kernel handles is needed to support kernel
only use cases. An example use case could be a GPU driver using ion
that wants to share its output buffers with a 3d party display
controller driver supporting dma buf.

Signed-off-by: Johan Mossberg <johan.mossberg@stericsson.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Johan Mossberg 2013-12-13 14:24:34 -08:00 • committed by Greg Kroah-Hartman

parent 88d4bda880

commit 22ba43220b

2 changed files with 30 additions and 8 deletions

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26

drivers/staging/android/ion/ion.c

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12

drivers/staging/android/ion/ion.h

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