From: Eric Anholt <eric@anholt.net>
Date: Thu, 21 Aug 2008 19:53:33 +0000 (-0700)
Subject: Export kmap_atomic_pfn for DRM-GEM.
X-Git-Tag: v2.6.28-rc1~255^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1d8c925b71dd6753bf438f9e14a9e5c5183bcc6;p=pandora-kernel.git

Export kmap_atomic_pfn for DRM-GEM.

The driver would like to map IO space directly for copying data in when
appropriate, to avoid CPU cache flushing for streaming writes.
kmap_atomic_pfn lets us avoid IPIs associated with ioremap for this process.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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