Re: [PATCH 2.6.18] IA64: Add pci_fixup_video into IA64 kernel for embedded VGA
From: Jesse Barnes
Date: Tue Sep 26 2006 - 11:48:33 EST
On Tuesday, September 26, 2006 8:09 am, Bjorn Helgaas wrote:
> On Tuesday 26 September 2006 01:42, eiichiro.oiwa.nm@xxxxxxxxxxx wrote:
> > To be compatible with Xorg's handling of PCI, we need pci_fixup_video
> > on IA64 platform like x86 platform. There are also machines, which
> > have VGA embedded into main board, among IA64 platform. Embedded VGA
> > generally don't have PCI ROM, and there are VGA ROM image in System
> > BIOS. Therefore, these machines need pci_fixup_video for the sysfs
> > rom. pci_fixup_video already exists in x86 Linux kernel. However since
> > this function doesn't exist in IA64 kernel, we could not run X server
> > on IA64 box has embedded-VGA.
> > I tested pci_fixup_video on IA64 box has embedded-VGA. I confirmed we
> > can read VGA BIOS from the sysfs rom regardless of embedded-VGA.
> What other architectures will need this? There's nothing ia64-specific
> in the patch below. Can it be put somewhere more generic?
It could go into drivers/pci, but setting the flag implies that the ROM is
at 0xc0000, so it does have some arch dependencies (though at least x86,
x86_64 and ia64 have machines that do this).
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