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[PATCH] Update cyblafb driver

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This is a major update to the cyblafb framebuffer driver. Most
of the stuff has been tested in the mm tree.

Main advantages:
============
  - vxres > xres support
  - ywrap and xpan support
  - much faster for almost all modes (e.g. 1280x1024-16bpp
     draws more than 41 full screens of text instead of about 25
     full screens of text per second on authors Epia 5000)
  - module init/exit code fixed
  - bugs triggered by console rotation fixed
  - lots of minor improvements
  - startup modes suitable for high performance scrolling
     in all directions

This diff  also contains a lot of white space fixes.

No side effects are possible, only one single graphics core is affected.

Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Knut Petersen
2006-01-09 15:04:20 +01:00
committed by Linus Torvalds
parent 8b78e83bfb
commit 44637a12f8
9 changed files with 954 additions and 689 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/fb/cyblafb/whatsnew
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0.62
====
- the vesafb parameter has been removed as I decided to allow the
feature without any special parameter.
- Cyblafb does not use the vga style of panning any longer, now the
"right view" register in the graphics engine IO space is used. Without
that change it was impossible to use all available memory, and without
access to all available memory it is impossible to ywrap.
- The imageblit function now uses hardware acceleration for all font
widths. Hardware blitting across pixel column 2048 is broken in the
cyberblade/i1 graphics core, but we work around that hardware bug.
- modes with vxres != xres are supported now.
- ywrap scrolling is supported now and the default. This is a big
performance gain.
- default video modes use vyres > yres and vxres > xres to allow
almost optimal scrolling speed for normal and rotated screens
- some features mainly usefull for debugging the upper layers of the
framebuffer system have been added, have a look at the code
- fixed: Oops after unloading cyblafb when reading /proc/io*
- we work around some bugs of the higher framebuffer layers.