From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 31 Oct 2009 16:52:16 +0000 (+0000)
Subject: ARM: dma-mapping: introduce the idea of buffer ownership
X-Git-Tag: v2.6.34-rc1~241^2~4^7~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18eabe2347ae7a11b3db768695913724166dfb0e;p=pandora-kernel.git

ARM: dma-mapping: introduce the idea of buffer ownership

The DMA API has the notion of buffer ownership; make it explicit in the
ARM implementation of this API.  This gives us a set of hooks to allow
us to deal with CPU cache issues arising from non-cache coherent DMA.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-By: Jamie Iles <jamie@jamieiles.com>
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