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| author | Keith Packard <keithp@keithp.com> | 2008-10-30 19:38:48 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-31 10:12:40 +0100 |
| commit | 0839ccb8ac6a9e2d5e175a4ae9c82b5c574d510d (patch) | |
| tree | c231d0492e4c03ae8d33f2101f21ff2928e56710 /Documentation | |
| parent | 9663f2e6a6cf3f82b06d8fb699b11b80f92553ba (diff) | |
| download | op-kernel-dev-0839ccb8ac6a9e2d5e175a4ae9c82b5c574d510d.zip op-kernel-dev-0839ccb8ac6a9e2d5e175a4ae9c82b5c574d510d.tar.gz | |
i915: use io-mapping interfaces instead of a variety of mapping kludges
Impact: optimize/clean-up the IO mapping implementation of the i915 DRM driver
Switch the i915 device aperture mapping to the io-mapping interface, taking
advantage of the cleaner API to extend it across all of the mapping uses,
including both pwrite and relocation updates.
This dramatically improves performance on 64-bit kernels which were using
the same slow path as 32-bit non-HIGHMEM kernels prior to this patch.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions
