From: Colin Cross <ccross@android.com>
Date: Fri, 13 Dec 2013 22:25:04 +0000 (-0800)
Subject: ion: add test device for unit tests to interact with dma_bufs
X-Git-Tag: v3.14-rc1~150^2~387
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ceff95d49cc3e28c06c2352e8d94f56046271aeb;p=pandora-kernel.git

ion: add test device for unit tests to interact with dma_bufs

Add a /dev/ion-test device that will be created if CONFIG_ION_TEST
is set.  The device accepts a dma_buf fd and allows reading and
writing to the backing memory using DMA-like apis or kernel mapping
apis.  Can be used to test the dma_buf mapping ops, including
the ion implementations, from userspace.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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