On Wed, Jun 21, 2000 at 10:57:30PM -0700, David S. Miller wrote:
> Indeed. Aside from the mmap64 issue, what else are you missing?
>
> That's about it. In fact I think it's nicer if the user doesn't
> need to know how big physical addresses are, nor anything about
> them anyways, just to mmap device regions.
I guess I don't mind a dedicated syscall for mapping these.
> The PPC folks indicate they need to be able to tell the app some
> kind of shift value for forming the address in load/store instruction
> on the PCI I/O and MEM regions it maps. Aparently, this shift value
> is different on different PPC machines which is why the app needs to
> obtain it as opposed to just knowing when it is __powerpc__ what to use.
Huh. Are you sure this is ppc? It sounds awfully like
Alpha sparse i/o. I wasn't aware of anyone else with this
sort of braindamage.
r~
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