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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2010-10-03 16:02:53 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2010-10-03 16:02:53 +0000 |
| commit | 91a938a7c56ab798b0e49b73d0efc3791f267969 (patch) | |
| tree | 5324c5eeadb4a4688f7919bb59218d875fd448ba /sys/dev/dc/dcphy.c | |
| parent | e68de2436ecf5f86bace8ec1f2e9608ee66d4796 (diff) | |
| download | FreeBSD-src-91a938a7c56ab798b0e49b73d0efc3791f267969.zip FreeBSD-src-91a938a7c56ab798b0e49b73d0efc3791f267969.tar.gz | |
Add a memory-range interface to /dev/mem on PowerPC using PAT attributes.
Unlike actual MTRR, this only controls the mapping attributes for
subsequent mmap() of /dev/mem. Nonetheless, the support is sufficiently
MTRR-like that Xorg can use it, which translates into an enormous increase
in graphics performance on PowerPC.
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/dc/dcphy.c')
0 files changed, 0 insertions, 0 deletions
