Messages in this thread |  | | Date | Tue, 28 Jan 2003 01:17:10 +0300 | From | Ivan Kokshaysky <> | Subject | Re: [patch 2.5] VGA IO on systems with multiple PCI IO domains |
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On Mon, Jan 27, 2003 at 06:55:04PM +0100, Benjamin Herrenschmidt wrote: > Well, your example clearly limits us to one IO space for VGA, which > might not be what we want. The problem also exist for some fbdev drivers > which might need to tap the VGA IOs of a given PCI card (thus getting > access to the "legacy" IOs of the bus the card is on).
You are right, I've already realized that. :-) The struct pci_bus * arg to legacy_ioport_remap (maybe better pci_legacy_ioport_remap) is really good idea, and it's perfectly ok to pass NULL in the vgacon case - we are limited to only one VGA console anyway. After the PCI setup is done, pci_legacy_ioport_remap(pbus, &legacy_resource) would solve any problem I can think of, including multiple ISA bridges.
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