PCI: Turn pci_fixup_video into generic for embedded VGA

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pci_fixup_video turns into generic code because there are many platforms need this fixup
for embedded VGA as well as x86. The Video BIOS integrates into System BIOS on a machine
has embedded VGA although embedded VGA generally don't have PCI ROM. As a result,
embedded VGA need the way that the sysfs rom points to the Video BIOS of System
RAM (0xC0000). PCI-to-PCI Bridge Architecture specification describes the condition whether
or not PCI ROM forwards VGA compatible memory address. fixup_video suits this specification.
Although the Video ROM generally implements in x86 code regardless of platform, some
application such as X Window System can run this code by dosemu86. Therefore,
pci_fixup_video should turn into generic code.


Signed-off-by: Eiichiro Oiwa <eiichiro.oiwa.nm@hitachi.com>
Acked-by: Alan Cox <alan@redhat.com>
Acked-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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eiichiro.oiwa.nm@hitachi.com 2006-09-28 13:55:47 +09:00 • committed by Greg Kroah-Hartman

parent bacedce32b

commit b5e4efe7e0

3 changed files with 49 additions and 46 deletions

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45

drivers/pci/quirks.c

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5

drivers/pci/rom.c

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