diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-09-11 00:28:06 +0200 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-09-11 04:46:07 +0200 |
| commit | 8082400327d8d2ca54254b593644942bed0edd25 (patch) | |
| tree | 43a32ac4e56e985341e2109d2c4d545d3d6df6cb /arch/x86 | |
| parent | drm/i915: generate a KMS uevent at lid open/close time (diff) | |
| download | linux-8082400327d8d2ca54254b593644942bed0edd25.tar.xz linux-8082400327d8d2ca54254b593644942bed0edd25.zip | |
drm/i915: framebuffer compression for pre-GM45
This patch adds framebuffer compression (good for about ~0.5W power
savings in the best case) support for pre-GM45 chips. GM45+ have a new,
more flexible FBC scheme that will be added in a separate patch.
FBC can't always be enabled: the compressed buffer must be physically
contiguous and reside in stolen space. So if you have a large display
and a small amount of stolen memory, you may not be able to take
advantage of FBC. In some cases, a BIOS setting controls how much
stolen space is available. Increasing this to 8 or 16M can help.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'arch/x86')
0 files changed, 0 insertions, 0 deletions