From: Matthew Wilcox <willy@debian.org>
To: Joel Soete <jsoe0708@tiscali.be>
Cc: parisc-linux@lists.parisc-linux.org, Matthew Wilcox <willy@debian.org>
Subject: Re: [parisc-linux] itlb miss handler optimizations!
Date: Tue, 19 Aug 2003 14:42:06 +0100 [thread overview]
Message-ID: <20030819134206.GD19630@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <3F2E54A800001F32@ocpmta8.freegates.net>
On Tue, Aug 19, 2003 at 02:33:04PM +0200, Joel Soete wrote:
> >On Thu, Aug 14, 2003 at 08:02:04AM +0200, Joel Soete wrote:
> >> btw is it for that reason (interlock) that in your patch we can read:
> >> [...]
> >> cmpb,= %r0,t0,itlb_miss_...
> >> nop
> >> [...]
> >> I am alway asking why the 'nop'.
> >
> >To fill the delayed branch slot (a silly idea, but ...)
>
> Would it be the same 'by setting the "nullify" bit' (ie cmpb,=,n ...)
Only if you know which direction the branch is going. See the cmpb
description.
--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
next prev parent reply other threads:[~2003-08-19 13:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-19 12:33 [parisc-linux] itlb miss handler optimizations! Joel Soete
2003-08-19 13:42 ` Matthew Wilcox [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-07-25 7:04 Carlos O'Donell
2003-07-25 11:46 ` Matthew Wilcox
2003-07-26 18:02 ` Carlos O'Donell
2003-08-12 3:58 ` Carlos O'Donell
2003-08-12 12:21 ` Joel Soete
2003-08-12 14:40 ` Carlos O'Donell
2003-08-12 16:06 ` Grant Grundler
2003-08-12 16:32 ` Matthew Wilcox
2003-08-12 17:06 ` Joel Soete
2003-08-13 15:57 ` Grant Grundler
2003-08-13 16:38 ` Joel Soete
2003-08-13 14:52 ` Joel Soete
2003-08-13 15:56 ` Carlos O'Donell
2003-08-13 16:05 ` Carlos O'Donell
2003-08-13 16:43 ` Joel Soete
2003-08-13 16:51 ` Grant Grundler
2003-08-14 6:02 ` Joel Soete
2003-08-14 11:46 ` Matthew Wilcox
2003-08-14 13:56 ` Joel Soete
2003-08-14 15:23 ` Grant Grundler
2003-08-14 16:15 ` Joel Soete
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=20030819134206.GD19630@parcelfarce.linux.theplanet.co.uk \
--to=willy@debian.org \
--cc=jsoe0708@tiscali.be \
--cc=parisc-linux@lists.parisc-linux.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.