From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue, 16 Dec 2008 20:17:33 +0000 (-0800)
Subject: swiotlb: support bouncing of HighMem pages
X-Git-Tag: v2.6.29-rc1~572^2^3~5
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef9b189352f2eb78f14e52996f4780a523b04a49;p=pandora-kernel.git

swiotlb: support bouncing of HighMem pages

Impact: prepare the swiotlb code for HighMem struct pages

This requires us to treat DMA regions in terms of page+offset rather
than virtual addressing since a HighMem page may not have a mapping.

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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