From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Cc: Anton Blanchard <anton@samba.org>, Andrew Morton <akpm@osdl.org>,
Linux PPC64 <linuxppc64-dev@ozlabs.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] PPC64 pmac hotplug cpu
Date: Sun, 16 Jan 2005 09:23:13 +1100 [thread overview]
Message-ID: <1105827794.27410.82.camel@gaston> (raw)
In-Reply-To: <Pine.LNX.4.61.0501122341410.23299@montezuma.fsmlabs.com>
On Thu, 2005-01-13 at 17:43 -0700, Zwane Mwaikambo wrote:
> I found the following very handy for use as a reference platform when
> working on i386 hotplug cpu recently.
>
> It's been tested on a G5 system with a cpu going on/offline every second
> and make -j. I've also tried a number of config options to avoid compile
> breakage.
Hi !
Looks good, but you could do even better :) I still want to look at the
proper mecanism to flush the CPU cache on 970, but the idea here is to
flush it, and put the CPU into a NAP loop (the 970 has no SLEEP mode)
with the caches clean and MSR:EE off. We can later get it back with a
soft reset.
Ben.
next prev parent reply other threads:[~2005-01-15 22:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-14 0:43 [PATCH] PPC64 pmac hotplug cpu Zwane Mwaikambo
2005-01-15 22:23 ` Benjamin Herrenschmidt [this message]
2005-01-17 4:37 ` Zwane Mwaikambo
2005-01-17 4:47 ` Benjamin Herrenschmidt
2005-01-17 5:35 ` Zwane Mwaikambo
2005-01-17 15:14 ` Chris Friesen
2005-01-18 0:49 ` Benjamin Herrenschmidt
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