Messages in this thread | | | Date | Tue, 28 Jan 2003 20:33:09 +0300 | From | Ivan Kokshaysky <> | Subject | Re: [patch 2.5] VGA IO on systems with multiple PCI IO domains |
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On Tue, Jan 28, 2003 at 06:23:15PM +0100, Benjamin Herrenschmidt wrote: > Ok, if I understand properly, all we have to do on PPC is to implement a > pci_request_legacy_resource() that will do the right thing for legacy > VGA memory as well ?
Exactly.
> Then, please, check the return value of pci_request_legacy_resource() > for getting to the VGA memory. Some machines (typically PowerMacs) > simply don't give you a way to generate PCI cycles to those low memory > addresses (you can't do VGA on those).
I agree, it certainly needs to be fixed.
The reason why I didn't it is that i386 has 0xa0000-0xbfffff region already claimed (somewhere in arch code?), I haven't looked into this yet.
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