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Re: pte_pagenr/MAP_NR deleted in pre6
- To: "David S. Miller" <davem@redhat.com>
- Subject: Re: pte_pagenr/MAP_NR deleted in pre6
- From: Ralf Baechle <ralf@oss.sgi.com>
- Date: Thu, 7 Sep 2000 16:26:15 +0200
- Cc: kanoj@google.engr.sgi.com, alan@lxorguk.ukuu.org.uk, sct@redhat.com, roman@augan.com, linux-mm@kvack.org, linux-kernel@vger.rutgers.edu, rmk@arm.linux.org.uk, nico@cam.org, davidm@hpl.hp.com
- In-Reply-To: <200008171941.MAA24042@pizda.ninka.net>; from davem@redhat.com on Thu, Aug 17, 2000 at 12:41:52PM -0700
- References: <200008171950.MAA45378@google.engr.sgi.com> <200008171941.MAA24042@pizda.ninka.net>
- Sender: owner-linux-mm@kvack.org
On Thu, Aug 17, 2000 at 12:41:52PM -0700, David S. Miller wrote:
> ISA is a dead hardware technology and therefore how it works is pretty
> much fixed in stone.
>
> Perhaps some older MIPS machines supporting ISA could benefit from
> an API similar to the PCI dma stuff, as Alan mentioned. But that is
> the only case which has any merit in my mind.
ISA isn't really a consideration for MIPS. All that ISA hardware
couldn't be supported by treating it the same as on a x86 system. That's
not top efficient but justified given the importance of ISA for MIPS
boxes - nearly NIL.
Ralf
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