From: Andi Kleen <ak@muc.de>
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [PATCH 2.6.12-rc3-mm3] perfctr: x86 update with K8 multicore fixes
Date: Mon, 09 May 2005 01:37:01 +0200 [thread overview]
Message-ID: <m164xtuw6a.fsf@muc.de> (raw)
In-Reply-To: <200505081845.j48Ija8i001111@harpo.it.uu.se> (Mikael Pettersson's message of "Sun, 8 May 2005 20:45:36 +0200 (MEST)")
Mikael Pettersson <mikpe@csd.uu.se> writes:
> Andrew,
>
> Here's an update for perfctr's x86/x86-64 low-level driver
> which works around issues with current K8 multicore chips.
>
> - Added code to detect multicore K8s and prevent threads in the
> thread-centric API from using northbridge events. This avoids
> resource conflicts, and an erratum in Revision E chips.
How about you just check cpu_core_map[] instead of adding your
own custom detection code for this? This seems quite bogus to me.
After all we have central CPU feature detection so that not everybody
reinvents all this on its own.
-Andi
next prev parent reply other threads:[~2005-05-08 23:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-08 18:45 [PATCH 2.6.12-rc3-mm3] perfctr: x86 update with K8 multicore fixes Mikael Pettersson
2005-05-08 23:37 ` Andi Kleen [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-05-09 0:40 Mikael Pettersson
2005-05-09 1:38 ` Andi Kleen
2005-05-09 8:53 Mikael Pettersson
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