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author | 2019-12-04 11:42:15 +0100 | |
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committer | 2020-01-15 14:34:49 +0100 | |
commit | b20414252068263c736d008e536658f9ce13d74a (patch) | |
tree | 42b975e9f9915d39e34cb08fce39d998bd908ed0 /include/uapi/drm | |
parent | drm/vmwgfx: Bump driver minor version (diff) | |
download | linux-b20414252068263c736d008e536658f9ce13d74a.tar.gz linux-b20414252068263c736d008e536658f9ce13d74a.tar.bz2 linux-b20414252068263c736d008e536658f9ce13d74a.zip |
drm/vmwgfx: Use VM_PFNMAP instead of VM_MIXEDMAP when possible
For shared, and read-only private mappings of graphics memory, use
VM_PFNMAP instead of VM_MIXEDMAP. This means less accounting overhead
when inserting and removing page-table entries. TTM doesn't do this
by default, since there was a performance problem with book-keeping of
write-combined mappings. Since vmwgfx solely uses cached mappings, that's
not a problem and now that the TTM vm has largely been turned into
helpers, we can use VM_PFNMAP on a per-driver basis
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Diffstat (limited to 'include/uapi/drm')
0 files changed, 0 insertions, 0 deletions