Subject: Re: make paddr_t 64bit on arc port
To: Jeff Smith <jeffs@geocast.com>
From: Jason R Thorpe <thorpej@zembu.com>
List: port-mips
Date: 06/07/2000 13:29:21
On Wed, Jun 07, 2000 at 12:55:43PM -0700, Jeff Smith wrote:
> Really? I'd generally consider the arc machines to be "small"
> machines. I could see this for odd PCI devices, but I would have
> thought framebuffers would have a 32b compatable address space
> to maintain compatability with existing operating systems.
The PCI BAR probably is in 32-bit space, but like on Alpha, that
is mapped into a 64-bit SysBus address.
Some of the ARC machines (e.g. later NEC RISCserver) are pretty beefy.
--
-- Jason R. Thorpe <thorpej@zembu.com>