From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from jdl.com (jdl.com [66.118.10.122]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 09A4567B15 for ; Tue, 20 Jun 2006 09:32:12 +1000 (EST) Received: from jdl (helo=jdl.com) by jdl.com with local-esmtp (Exim 4.44) id 1FsTE0-0000U4-Mp for linuxppc-dev@ozlabs.org; Mon, 19 Jun 2006 18:32:09 -0500 To: "linuxppc-dev@ozlabs.org" Subject: Re: [PATCH 5/9 v3] Add the MPC8641 HPCN platform files. In-Reply-To: Your message of "Tue, 20 Jun 2006 01:18:06 +0200." References: <1150600056.23600.152.camel@localhost.localdomain> <1150725866.9022.5.camel@cashmere.sps.mot.com> Date: Mon, 19 Jun 2006 18:32:08 -0500 From: Jon Loeliger Message-Id: List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , So, like, the other day Segher Boessenkool mumbled: > > I'm confused now. So are or arent't all CPUs running at the > time Linux is started? Only the boot CPU is running. The others are not. > Are you saying Linux manually starts > all non-boot CPUs?!? Right. The secondary CPUs are not clocking, not able to fetch memory, not nothing until Linux gets a shot at smp_secondary_kick()'ing them into motion. And then we have the ability to start the scondary CPUs one at a time. jdl