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Export kmap_atomic_pfn for DRM-GEM.
authorEric Anholt <eric@anholt.net>
Thu, 21 Aug 2008 19:53:33 +0000 (12:53 -0700)
committerDave Airlie <airlied@linux.ie>
Fri, 17 Oct 2008 21:10:12 +0000 (07:10 +1000)
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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