From: David Mosberger <davidm@napali.hpl.hp.com>
To: Richard Henderson <rth@twiddle.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
davidm@hpl.hp.com, linux-kernel@vger.kernel.org,
torvalds@transmeta.com
Subject: Re: [PATCH] 2.5.1-pre5: per-cpu areas
Date: Thu, 14 Mar 2002 10:06:03 -0800 [thread overview]
Message-ID: <15504.59019.157849.267434@napali.hpl.hp.com> (raw)
In-Reply-To: <20020314013721.A23274@twiddle.net>
In-Reply-To: <15504.7958.677592.908691@napali.hpl.hp.com> <E16lMzi-0002bb-00@wagner.rustcorp.com.au> <20020314013721.A23274@twiddle.net>
>>>>> On Thu, 14 Mar 2002 01:37:21 -0800, Richard Henderson <rth@twiddle.net> said:
Richard> This definitely needs to be per-architecture. On Alpha, I
Richard> think I can use the Thread Local Storage model to be added
Richard> to binutils 2.13 (and potentially compiler support to gcc
Richard> 3.[23]). IA-64 may be able to do the same. It's certain
Richard> that x86 can't, since the userland model requires %gs:0
Richard> point to the thread base, and the kernel folk would never
Richard> cotton to the segment swapping that would be needed.
Actually, on ia64 I want to use a pinned TLB entry to map the per-CPU
area. This has the advantage that accessing the local version of a
per-CPU variable has zero extra overhead. We have been doing this for
the cpu_info structure for a while now.
--david
next prev parent reply other threads:[~2002-03-14 18:06 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <15504.7958.677592.908691@napali.hpl.hp.com>
2002-03-14 4:37 ` Rusty Russell
2002-03-14 5:05 ` Jeff Garzik
2002-03-14 11:14 ` Rusty Russell
2002-03-14 11:26 ` Jeff Garzik
2002-03-14 12:16 ` Rusty Russell
2002-03-14 12:25 ` Jeff Garzik
2002-03-15 1:00 ` Richard Henderson
2002-03-14 9:37 ` Richard Henderson
2002-03-14 18:06 ` David Mosberger [this message]
[not found] <15504.7958.677592.908691@napali.hpl.hp.com.suse.lists.linux.kernel>
[not found] ` <E16lMzi-0002bb-00@wagner.rustcorp.com.au.suse.lists.linux.kernel>
2002-03-14 8:39 ` Andi Kleen
2002-03-14 11:09 ` Rusty Russell
2002-03-14 11:14 ` Andi Kleen
2002-03-14 19:48 ` H. Peter Anvin
2002-03-14 18:04 ` David Mosberger
2002-03-14 18:51 ` Andi Kleen
2002-03-15 4:07 ` Rusty Russell
2002-03-15 9:13 ` Andi Kleen
2002-03-17 7:17 ` Rusty Russell
2002-03-18 7:35 ` Andi Kleen
2002-03-19 0:02 ` Rusty Russell
2002-03-19 0:08 ` J.A. Magallon
2002-03-19 0:15 ` Andi Kleen
2002-03-19 17:05 ` Richard Henderson
2002-03-15 4:19 ` David Mosberger
2002-03-15 5:52 ` Rusty Russell
2001-12-05 22:09 Rusty Russell
2001-12-06 7:21 ` Keith Owens
2001-12-06 8:07 ` David S. Miller
2001-12-06 9:18 ` Chris Wedgwood
2001-12-07 15:03 ` Pavel Machek
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=15504.59019.157849.267434@napali.hpl.hp.com \
--to=davidm@napali.hpl.hp.com \
--cc=davidm@hpl.hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=rth@twiddle.net \
--cc=rusty@rustcorp.com.au \
--cc=torvalds@transmeta.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®