From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756946AbZHNTOd (ORCPT ); Fri, 14 Aug 2009 15:14:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756908AbZHNTOc (ORCPT ); Fri, 14 Aug 2009 15:14:32 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:40585 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756891AbZHNTOc (ORCPT ); Fri, 14 Aug 2009 15:14:32 -0400 From: "Rafael J. Wysocki" To: Jesse Barnes Subject: Re: [RFC] PCI: Runtime power management Date: Fri, 14 Aug 2009 21:15:25 +0200 User-Agent: KMail/1.12.0 (Linux/2.6.31-rc5-rjw; KDE/4.3.0; x86_64; ; ) Cc: Matthew Garrett , Alan Stern , Greg KH , LKML , "Linux-pm mailing list" , linux-pci@vger.kernel.org, linux-usb@vger.kernel.org References: <200908081625.57333.rjw@sisk.pl> <20090813002925.GA2532@srcf.ucam.org> <20090814103719.79e99d91@jbarnes-g45> In-Reply-To: <20090814103719.79e99d91@jbarnes-g45> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200908142115.25946.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Friday 14 August 2009, Jesse Barnes wrote: > On Thu, 13 Aug 2009 01:29:25 +0100 > Matthew Garrett wrote: > > > I got a fixed BIOS from Dell and have been able to get this working > > now. It seems entirely happy with USB, but I'd like some sanity > > checks on whether I'm doing this correctly. There's certainly a > > couple of quirks related to setting the ACPI GPE type that would need > > a little bit of work in the ACPI layer, and it breaks ACPI-mediated > > PCI hotplug though that's easy enough to fix by just calling into the > > hotplug code from the core notifier. > > > > This patch builds on top of Rafael's work on systemwide runtime power > > management. It supports suspending and resuming PCI devices at > > runtime, enabling platform wakeup events that allow the devices to > > automatically resume when appropriate. It currently requires platform > > support, but PCIe setups could be supported natively once native PCIe > > PME code has been added to the kernel. > > PCI bits look pretty good to me, though Rafael should take a look too. I'm going to do that shortly. > Card readers and firewire could benefit from similar treatment, As well us network adapters. > maybe that would get us to .5W territory on some machines. Hopefully. :-) Thanks, Rafael