From: Colin Cross <ccross@android.com>
Date: Sat, 14 Dec 2013 03:26:32 +0000 (-0800)
Subject: ion: fix bugs in cma heap
X-Git-Tag: v3.14-rc1~150^2~365
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=661f82f6c219dc515ee5123213d8f57481694fe4;p=pandora-kernel.git

ion: fix bugs in cma heap

Implement ion_cma_unmap_kernel, ion will call it unconditionally.
Use correct gfp flags when calling dma_alloc_coherent so it doesn't
try to use atomic DMA memory.
Check for invalid alignment when allocating.
Reject cached allocations - the cpu address returned by
dma_alloc_coherent is always going to be an uncached mapping, so
map_kernel will not see data written by a cached userspace mapping.

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>
---

Reading git-diff-tree failed