Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262687AbVAQEsP (ORCPT ); Sun, 16 Jan 2005 23:48:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262689AbVAQEsP (ORCPT ); Sun, 16 Jan 2005 23:48:15 -0500 Received: from gate.crashing.org ([63.228.1.57]:713 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S262687AbVAQEsK (ORCPT ); Sun, 16 Jan 2005 23:48:10 -0500 Subject: Re: [PATCH] PPC64 pmac hotplug cpu From: Benjamin Herrenschmidt To: Zwane Mwaikambo Cc: Andrew Morton , Linux PPC64 , Anton Blanchard , Linux Kernel list In-Reply-To: References: <1105827794.27410.82.camel@gaston> Content-Type: text/plain Date: Mon, 17 Jan 2005 15:47:46 +1100 Message-Id: <1105937266.4534.0.camel@gaston> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 893 Lines: 24 On Sun, 2005-01-16 at 21:37 -0700, Zwane Mwaikambo wrote: > Hello Ben, > > On Sun, 16 Jan 2005, Benjamin Herrenschmidt wrote: > > > 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. > > Thanks for the suggestions! I'll work on getting something together. Well.. the cache flush part requires some not-really-documentd stuff on the 970, but I'll try to come up with something. Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/