From: Jun Sun <jsun@mvista.com>
To: Keith M Wesolowski <wesolows@foobazco.org>
Cc: linux-mips@oss.sgi.com
Subject: Re: RFC: Cleanup/detection patch
Date: Thu, 05 Apr 2001 14:53:14 -0700 [thread overview]
Message-ID: <3ACCE94A.A551470D@mvista.com> (raw)
In-Reply-To: 20010405140338.A1508@foobazco.org
Keith M Wesolowski wrote:
>
> On Thu, Apr 05, 2001 at 01:29:13PM -0700, Jun Sun wrote:
>
> > I don't like bc_ops idea. Usually the external cache capability is still
> > integral part of the CPU.
>
> How can it be both an integral part of the CPU and board-specific?
Hmm, I am thinking about something like Rm7k, where the tertiary cache is
controlled by the CPU (through cache instruction and TagLo/TagHi regsiters,
etc) but the size is only known to the board.
I think some CPUs can have secondary, external cache but cannot figure the
size and, especially, the layout (# of ways, ...) automatically. (Any
confirmation?)
Those are what I was referring to.
The key point is that machine_detection() should happen BEFORE
cpu_probe()/cache_probe() so that we have an elegant way to address the above
situation.
Jun
next prev parent reply other threads:[~2001-04-05 21:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-02 6:52 RFC: Cleanup/detection patch Keith M Wesolowski
2001-04-04 2:43 ` Jun Sun
2001-04-04 3:30 ` Keith M Wesolowski
2001-04-04 17:54 ` Jun Sun
2001-04-05 7:46 ` Keith M Wesolowski
2001-04-05 20:29 ` Jun Sun
2001-04-05 21:03 ` Keith M Wesolowski
2001-04-05 21:53 ` Jun Sun [this message]
2001-04-09 6:40 ` Geert Uytterhoeven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3ACCE94A.A551470D@mvista.com \
--to=jsun@mvista.com \
--cc=linux-mips@oss.sgi.com \
--cc=wesolows@foobazco.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.