From: Dave Airlie <airlied@redhat.com>
Date: Sun, 20 May 2012 07:03:56 +0000 (+0530)
Subject: dma-buf: add vmap interface
X-Git-Tag: v3.5-rc1~79^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=98f86c9e4ae3205e4c85c535691a5d36426360ee;p=pandora-kernel.git

dma-buf: add vmap interface

The main requirement I have for this interface is for scanning out
using the USB gpu devices. Since these devices have to read the
framebuffer on updates and linearly compress it, using kmaps
is a major overhead for every update.

v2: fix warn issues pointed out by Sylwester Nawrocki.

v3: fix compile !CONFIG_DMA_SHARED_BUFFER and add _GPL for now

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
---

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