summaryrefslogtreecommitdiffstats
path: root/Documentation/fb/cyblafb/whatsnew
diff options
context:
space:
mode:
authorKnut Petersen <Knut_Petersen@t-online.de>2006-01-09 15:04:20 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-09 10:00:36 -0800
commit44637a12f80b80157d9c1bc5b7d6ef09c9e05713 (patch)
tree17384805725f7b429685ba4cad0d9488d93f9f25 /Documentation/fb/cyblafb/whatsnew
parent8b78e83bfbc12f7e9bdefd400abdfde9e6c9ac51 (diff)
[PATCH] Update cyblafb driver
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>
Diffstat (limited to 'Documentation/fb/cyblafb/whatsnew')
-rw-r--r--Documentation/fb/cyblafb/whatsnew29
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/fb/cyblafb/whatsnew b/Documentation/fb/cyblafb/whatsnew
new file mode 100644
index 00000000000..76c07a26e04
--- /dev/null
+++ b/Documentation/fb/cyblafb/whatsnew
@@ -0,0 +1,29 @@
+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.