From: Ignacio Vazquez-Abrams <ignacio@openservices.net>
To: Chris Friesen <cfriesen@nortelnetworks.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] (comments requested) adding finer-grained timing to PPC add_timer_randomness()
Date: Wed, 22 Aug 2001 17:06:31 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.33.0108221702300.12521-100000@terbidium.openservices.net> (raw)
In-Reply-To: <3B841CC3.E7040002@nortelnetworks.com>
On Wed, 22 Aug 2001, Chris Friesen wrote:
> I'd like some comments on the following patch.
>
> This patch is designed to add finer-grained timing (similar to the i386 timing)
> to add_timer_randomness(). The only tricky bit is that the PPC601 doesn't
> support the timebase registers. Accordingly, I've added a flag to the PPC port
> that is used to keep track of whether or not the processor supports the timebase
> register.
>
> Is there a better way to keep track of this information? i386 has a struct with
> useful information stored, but it doesn't look like PPC does.
>
> Thanks,
>
> Chris
>From the patch:
--- linux-2.2.19-clean/arch/ppc/kernel/setup.c Sun Mar 25 11:31:49 2001
+++ linux-2.2.19/arch/ppc/kernel/setup.c Wed Aug 22 16:34:51 2001
...
+extern int have_timebase = 1;
...
--- linux-2.2.19-clean/include/asm-ppc/processor.h Sun Mar 25 11:31:08 2001
+++ linux-2.2.19/include/asm-ppc/processor.h Wed Aug 22 16:34:51 2001
...
+extern int have_timebase;
...
Hrmm...
Am I missing something, or should at least one of these not be extern?
--
Ignacio Vazquez-Abrams <ignacio@openservices.net>
next prev parent reply other threads:[~2001-08-22 21:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-22 20:57 [PATCH] (comments requested) adding finer-grained timing to PPC add_timer_randomness() Chris Friesen
2001-08-22 21:06 ` Ignacio Vazquez-Abrams [this message]
2001-08-22 21:27 ` Chris Friesen
2001-08-23 1:33 ` Paul Mackerras
2001-08-23 9:46 ` Gabriel Paubert
2001-08-23 13:11 ` Benjamin Herrenschmidt
2001-08-23 12:31 ` Paul Mackerras
2001-08-24 7:32 ` Gabriel Paubert
2001-08-24 13:59 ` Christopher Friesen
2001-08-28 20:50 ` Gabriel Paubert
2001-08-24 17:54 ` [PATCH] (comments requested) adding finer-grained timing to PPC Albert D. Cahalan
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=Pine.LNX.4.33.0108221702300.12521-100000@terbidium.openservices.net \
--to=ignacio@openservices.net \
--cc=cfriesen@nortelnetworks.com \
--cc=linux-kernel@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).