[OpenBIOS] [PATCH v3 1/2] ppc: Adjust isa_io_base for ppc64

Alexander Graf agraf at suse.de
Sun Nov 21 14:09:59 CET 2010

On 21.11.2010, at 14:00, Blue Swirl wrote:

> On Sat, Nov 20, 2010 at 4:42 PM, Andreas Färber <andreas.faerber at web.de> wrote:
>> Am 13.11.2010 um 10:25 schrieb Andreas Färber:
>>> To avoid cast warnings, use a 64-bit ISA I/O base on ppc64.
>>> v3:
>>> * Adjust unix target, pointed out by Blue.
>>>  Unify ppc and sparc64, using unsigned long instead of uintptr_t.
>>>  It is initialized from pci_arch_t, which uses unsigned long.
>>> * Update other ppc targets, pointed out by Blue.
>> Ping. Opinions on which type is more correct to use here? Should we go with
>> uintptr_t and change PCI instead?
> For Sparc64, isa_io_base should be 64 bits. Any one of unsigned long,
> uintptr_t or phys_addr_t would be correct. Sparc32 does not use ISA,
> so that leaves the decision to PPC/PPC64.

I'm reasonably indifferent. On PPC32 we don't support memory > 32 bits IIRC. On PPC64, there's the theoretical possibility to have the isa base above 32 bits, so anything works really :).


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