d1d8c925b7
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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