diff options
author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2009-03-31 18:25:40 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-01 11:59:33 -0400 |
commit | ddb53d48da5b0e691f35e703ac29118747f86c99 (patch) | |
tree | bdf0f4a6f3e74a87e5b2ccb9530f708eed6258d2 /Documentation/fb/cyblafb/whatsnew | |
parent | ec549a0fdc32171b26677f1ef0b5309faa743362 (diff) |
fbdev: remove cyblafb driver
A tridentfb driver has all the functionality of the cyblafb driver without
the bugs of the latter.
Changes to the tridentfb driver:
- FBINFO_READS_FAST added to the tridentfb. The cyblafb used a blitter
for scrolling which is faster than color expansion on Cyberblade
chipsets. The blitter is slower on a discrete Blade3D core. Use the
blitter for scrolling in the tridentfb only for integrated Blade3D
cores. Now, scrolling speed is about equal for the tridentfb and the
cyblafb.
- a copyright notice addition is done on request of Jani Monoses (the
first author of the tridentfb).
Tested on AGP Blade3D card and PCChips
M787CLR motherboard: VIA C3 cpu +
VT8601 north bridge (aka Cyberblade/i1).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: "Jani Monoses" <jani@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/fb/cyblafb/whatsnew')
-rw-r--r-- | Documentation/fb/cyblafb/whatsnew | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/Documentation/fb/cyblafb/whatsnew b/Documentation/fb/cyblafb/whatsnew deleted file mode 100644 index 76c07a26e044..000000000000 --- a/Documentation/fb/cyblafb/whatsnew +++ /dev/null | |||
@@ -1,29 +0,0 @@ | |||
1 | 0.62 | ||
2 | ==== | ||
3 | |||
4 | - the vesafb parameter has been removed as I decided to allow the | ||
5 | feature without any special parameter. | ||
6 | |||
7 | - Cyblafb does not use the vga style of panning any longer, now the | ||
8 | "right view" register in the graphics engine IO space is used. Without | ||
9 | that change it was impossible to use all available memory, and without | ||
10 | access to all available memory it is impossible to ywrap. | ||
11 | |||
12 | - The imageblit function now uses hardware acceleration for all font | ||
13 | widths. Hardware blitting across pixel column 2048 is broken in the | ||
14 | cyberblade/i1 graphics core, but we work around that hardware bug. | ||
15 | |||
16 | - modes with vxres != xres are supported now. | ||
17 | |||
18 | - ywrap scrolling is supported now and the default. This is a big | ||
19 | performance gain. | ||
20 | |||
21 | - default video modes use vyres > yres and vxres > xres to allow | ||
22 | almost optimal scrolling speed for normal and rotated screens | ||
23 | |||
24 | - some features mainly usefull for debugging the upper layers of the | ||
25 | framebuffer system have been added, have a look at the code | ||
26 | |||
27 | - fixed: Oops after unloading cyblafb when reading /proc/io* | ||
28 | |||
29 | - we work around some bugs of the higher framebuffer layers. | ||