From: Ian Campbell <ian.campbell@citrix.com>
Date: Tue, 16 Dec 2008 20:17:30 +0000 (-0800)
Subject: swiotlb: allow architectures to override phys<->bus<->phys conversions
X-Git-Tag: v2.6.29-rc1~572^2^3~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e08e1f7adba522378e8d2ae941bf25443866136d;p=pandora-kernel.git

swiotlb: allow architectures to override phys<->bus<->phys conversions

Impact: generalize phys<->bus<->phys conversions in the swiotlb code

Architectures may need to override these conversions. Implement a
__weak hook point containing the default implementation.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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