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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2009-09-22 16:47:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 07:39:52 -0700
commitc3e25673843153ea75fda79a47cf12f10a25ca37 (patch)
treefdc15161f32ca26450614c08b82c293b788ffb40 /drivers/cpuidle
parentc4df5489e40e55f2962b9e8100ebc0d4d1374415 (diff)
viafb: 2D engine rewrite
This patch is a completly rewritten 2D engine. The engine is no longer in a default state but reinitialized every time to allow usage for both framebuffers regardless of their settings. The whole engine handling is concentrated in a big function which takes 16 parameters. Although the number of parameters is worryingly it is good to have a single funtion to deal with this stuff as it allows to easily support different engines and avoids some code duplication. On the way support for the new 2D engine in VX800 was added. As the with less code duplication but it is probably better to duplicate the code as this way is easier to walk if VIA ever decides to release a new engine which changes anything the driver touches. The engine support for VX800 gives a notable boost in speed. There are no known regressions but as this patch changes paths I do neither have the hardware nor documentation to check and has the possibility to put the system in a critical state heavy testing is appreciated. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/cpuidle')
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