CVS commit: [netbsd-7] src/sys/external/bsd/drm2/include/linux

["Soren Jacobsen" <snj%netbsd.org@localhost>]

Module Name:    src
Committed By:   snj
Date:           Sun Sep 21 18:01:28 UTC 2014

Modified Files:
        src/sys/external/bsd/drm2/include/linux [netbsd-7]: io-mapping.h

Log Message:
Pull up following revision(s) (requested by riastradh in ticket #98):
        sys/external/bsd/drm2/include/linux/io-mapping.h: revision 1.3
Make Linux io_mapping actually work.
Can't use bus_space_map/bus_space_unmap in interrupt context, where
Linux uses this io_mapping abstraction.  Instead, do uvm_km_alloc up
front and then use bus_space_mmap/pmap_kenter_pa to map it.
XXX Should bus_space_reserve the region (but that's x86-only for now).
XXX Should use direct map if possible.
XXX Should set an MTRR WC too in case of direct map or no PAT.


To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.2.8.1 \
    src/sys/external/bsd/drm2/include/linux/io-mapping.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.