From: Ingo Molnar <mingo@elte.hu>
To: Mark Kelly <mark@bifferos.com>
Cc: linux-kernel@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Florian Fainelli <florian@openwrt.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [patch] x86 CPU detection for RDC
Date: Sun, 16 Aug 2009 17:55:07 +0200 [thread overview]
Message-ID: <20090816155507.GA2791@elte.hu> (raw)
In-Reply-To: <58001.1250437590@bifferos.com>
* Mark Kelly <mark@bifferos.com> wrote:
> From about 2.6.29, CPU detection appears to have changed such
> that
> a patch is required for RDC x86-compatible CPUs (possibly other
> undetected x86 CPUs as well). A work-around was to add a couple
> of null checks to arch/x86/kernel/cpu/common.c, e.g.:
>
> if (this_cpu && this_cpu->c_identify)
> ~~~~~~~~~~~~~~~~~~~~~~~
> this_cpu->c_identify(c);
>
> However the patch below attempts to do this detection properly,
> and also detect all variants of RDC CPUs. I have also added some
> documentation for this platform.
>
> See also:
> http://sites.google.com/site/bifferboard/Home/s3282-kernel-issues
ok, this definitely looks like a step in the right direction. The
patch needs a few small fixes:
- the one you sent was line-wrapped. (please see
Documentation/email-clients.txt about how to send plain-text
patches.)
- there's a few stylistic errors in the patch,
scripts/checkpatch.pl reports:
total: 24 errors, 5 warnings, 0 checks, 157 lines checked
Ingo
next prev parent reply other threads:[~2009-08-16 15:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-16 15:46 [patch] x86 CPU detection for RDC Mark Kelly
2009-08-16 15:55 ` Ingo Molnar [this message]
2009-08-16 2:20 ` Mark Kelly
2009-08-16 17:52 ` Ingo Molnar
2009-08-16 3:35 ` Mark Kelly
2009-08-17 17:57 ` H. Peter Anvin
2009-08-17 18:08 ` Ingo Molnar
2009-08-17 18:22 ` H. Peter Anvin
2009-08-17 18:46 ` Andi Kleen
2009-08-17 18:53 ` H. Peter Anvin
2009-08-17 21:31 ` Andi Kleen
2009-08-17 22:00 ` H. Peter Anvin
2009-08-17 7:13 ` [patch, v2] x86: " Mark Kelly
2009-08-18 9:21 ` Florian Fainelli
2009-08-18 10:15 ` Ingo Molnar
2009-08-18 2:56 ` [patch, v3] " Mark Kelly
2009-08-17 18:58 ` [patch] x86 " H. Peter Anvin
2009-08-17 13:44 ` Andi Kleen
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