In article <8877.1040632729@splode.eterna.com.au>
mrg@eterna.com.au writes:

> as you know they will be on the same device, i think this
> is a fine way of doing it.

pci_mapreg_map() requires a "struct pci_attach_args *" argument.
Is it OKay to forge the arg like this?

	struct pci_attach_args *pa = aux;	/* attach arg of function 1 */
	struct pci_attach_args	ebus_pa;
	...
	/* get a PCI tag for the EBus bridge (function 0 of the same device) */
	ebus_pa = *pa;
	ebus_pa.pa_tag = pci_make_tag(pa->pa_pc, pa->pa_bus, pa->pa_device, 0);

	pci_mapreg_map(&ebus_pa, ...);

-- 
ITOH Yasufumi