From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933456Ab0EDP2F (ORCPT ); Tue, 4 May 2010 11:28:05 -0400 Received: from cavan.codon.org.uk ([93.93.128.6]:60072 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933044Ab0EDP2D (ORCPT ); Tue, 4 May 2010 11:28:03 -0400 Date: Tue, 4 May 2010 16:27:24 +0100 From: Matthew Garrett To: Alan Stern Cc: Kevin Hilman , "Rafael J. Wysocki" , Mark Brown , Arve =?iso-8859-1?B?SGr4bm5lduVn?= , linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Tejun Heo , Oleg Nesterov , Paul Walmsley , magnus.damm@gmail.com, mark gross , Arjan van de Ven , Geoff Smith Subject: Re: [PATCH 0/8] Suspend block api (version 6) Message-ID: <20100504152724.GA2184@srcf.ucam.org> References: <20100504004338.GA22678@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 04, 2010 at 09:51:39AM -0400, Alan Stern wrote: > Another thing that Kevin is missing: There is more to the system than > the devices and the CPU. For example: RAM, an embedded controller (on > modern desktop/laptop systems), a power supply, and so on. Dynamic PM > for the CPU and the devices won't power-down these things, but system > PM will. Somewhat true - machines with C1E support will put the RAM into self refresh when the cpu is idle, but you're right that there are various components that we simply don't have control over in the desktop world at present. -- Matthew Garrett | mjg59@srcf.ucam.org