gpu: ion: Add explicit sync ioctl

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This is deprecated in favor of using the dma_buf api which will
automatically sync a buffer to memory when it is mapped to a device.
However, that functionality is not ready, so this patch adds the
ability to sync a buffer explicitly.

Signed-off-by: Rebecca Schultz Zavin <rebecca@android.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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Rebecca Schultz Zavin 2013-12-13 14:23:52 -08:00 • committed by Greg Kroah-Hartman

parent bd5d6bdae1

commit 0b9ec1cfd4

2 changed files with 47 additions and 3 deletions

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38

drivers/staging/android/ion/ion.c

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12

drivers/staging/android/ion/ion.h

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