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| author | Andy Lutomirski <luto@amacapital.net> | 2013-05-13 23:58:42 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-05-31 13:37:06 +1000 |
| commit | ff47eaf24d01b5753e4964b10c606e0d711b143e (patch) | |
| tree | 4a69ba395f6aaa743ce6cc12d5fe9a09286eae2c /usr | |
| parent | 247d36d75128ba1f63702e0e6185d9a7a23ee5cb (diff) | |
| download | linux-ff47eaf24d01b5753e4964b10c606e0d711b143e.tar.bz2 | |
drm: Update drm_addmap and drm_mmap to use PAT WC instead of MTRRs
Previously, DRM_FRAME_BUFFER mappings, as well as DRM_REGISTERS
mappings with DRM_WRITE_COMBINING set, resulted in an unconditional
MTRR being added but the actual mappings being created as UC-.
Now these mappings have the MTRR added only if needed, but they will
be mapped with pgprot_writecombine.
The non-WC DRM_REGISTERS case now uses pgprot_noncached instead of
hardcoding the bit twiddling.
The DRM_AGP case is unchanged for now.
[airlied: fix ppc build]
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions