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Fix vesafb hang when scroll mode is REDRAW.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Remove error checking from vesafb_pan_display. This is guaranteed to be done
by the core layer.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
From: Bugzilla Bug 5351
"After resuming from S3 (suspended while in X), the LCD panel stays black .
However, the laptop is up again, and I can SSH into it from another
machine.
I can get the panel working again, when I first direct video output to the
CRT output of the laptop, and then back to LCD (done by repeatedly hitting
Fn+F5 buttons on the Toshiba, which directs output to either LCD, CRT or
TV) None of this ever happened with older kernels."
This bug is due to the recently added vesafb_blank() method in vesafb. It
works with CRT displays, but has a high incidence of problems in laptop
users. Since CRT users don't really get that much benefit from hardware
blanking, drop support for this.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
vesafb did not build without CONFIG_MTRR.
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
vesafb occassionally gets the size wrong when setting the mtrr. When X or DRI
attempts to set the mtrr, it will fail due to range overlap significantly
affecting their performance. Disable mtrr and let the user explicitly enable
it with the mtrr:n option.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix out-of-bounds bug. The pseudopalette has room only for 16 entries, thus,
write only the first 16 entries to the pseudopalette.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
According to Jon Smirl, filling in the field fb_cursor with soft_cursor for
drivers that do not support hardware cursors is redundant. The soft_cursor
function is usable by all drivers because it is just a wrapper around
fb_imageblit. And because soft_cursor is an fbcon-specific hook, the file is
moved to the console directory.
Thus, drivers that do not support hardware cursors can leave the fb_cursor
field blank. For drivers that do, they can fill up this field with their own
version.
The end result is a smaller code size. And if the framebuffer console is not
loaded, module/kernel size is also reduced because the soft_cursor module will
also not be loaded.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Reported by: Bob Tracy <rct@gherkin.frus.com>
"...I've got a Toshiba notebook (730XCDT -- Pentium 150MMX) for which
I'm using the Vesa FB driver. When the machine has been idle for some
time and the driver attempts to powerdown the display, rather than the
display going blank, it goes gray with several strange lines. When I
hit the "shift" key or other-wise wake up the display, the old video
state is not fully restored..."
vesafb recently added a blank method which has only 2 states, powerup and
powerdown. The powerdown state is used for all blanking levels, but in his
case, powerdown does not work correctly for higher levels of display
powersaving. Thus, for intermediate power levels, use software blanking,
and use only hardware blanking for an explicit powerdown.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add rudimentary support by manipulating the VGA registers. However, not
all vesa modes are VGA compatible, so VGA compatiblity is checked first.
Only 2 levels are supported, powerup and powerdown.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
>> vesafb: mode is 800x600x16, linelength=1600, pages=16
>> vesafb: scrolling: redraw
>> vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
>> mtrr: type mismatch for fc000000,1000000 old: write-back new: write-
>> combining
Range is already set to write-back, vesafb attempts to add a write-combining
mtrr (default for vesafb).
>> mtrr: size and base must be multiples of 4 kiB
This is a bug, vesafb attempts to add a size < PAGE_SIZE triggering
the messages below.
To eliminate the warning messages, you can add the option mtrr:2 to add a
write-back mtrr for vesafb. Or just use nomtrr option.
1. Fix algorithm for finding the best power of 2 size with mtrr_add().
2. Add option to choose the mtrr type by extending the mtrr boot option:
mtrr:n where n
0 = no mtrr (equivalent to using the nomtrr option)
1 = uncachable
2 = write back
3 = write combining (default)
4 = write through
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
vesafb will do really silly things like..
mtrr: type mismatch for e0000000,8000000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,4000000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,2000000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,1000000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,800000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,400000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,200000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,100000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,80000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,40000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,20000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,10000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,8000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,4000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,2000 old: write-back new: write-combining
mtrr: type mismatch for e0000000,1000 old: write-back new: write-combining
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x800 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x400 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x200 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x100 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x80 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x40 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x20 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x10 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x8 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x4 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x2 base: 0xe0000000
mtrr: size and base must be multiples of 4 kiB
mtrr: size: 0x1 base: 0xe0000000
Stop scaling down at PAGE_SIZE.
Also fix up some broken indentation.
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix the size passed to release_mem_region in an error path.
Also adjust the message printed when vesafb cannot load; the comment there
already says this must not be fatal, so the message should also not mention
the word 'abort' otherwise indicating a problem to worry about in the log.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Gerd Knorr <kraxel@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
