From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751600AbWIXVpW (ORCPT ); Sun, 24 Sep 2006 17:45:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751605AbWIXVpW (ORCPT ); Sun, 24 Sep 2006 17:45:22 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:59275 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751600AbWIXVpT (ORCPT ); Sun, 24 Sep 2006 17:45:19 -0400 Date: Sun, 24 Sep 2006 23:45:17 +0200 From: Pavel Machek To: Matthew Locke Cc: linux-pm@lists.osdl.org, "Scott E. Preece" , linux-kernel@vger.kernel.org Subject: Re: [linux-pm] [PATCH] PowerOP, PowerOP Core, 1/2 Message-ID: <20060924214517.GA1935@elf.ucw.cz> References: <200609222034.k8MKYoDK008487@olwen.urbana.css.mot.com> <20060923111805.GF20778@elf.ucw.cz> <6c3c9c9fa4961ca081c2742684201418@nomadgs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6c3c9c9fa4961ca081c2742684201418@nomadgs.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > >Well, two objections to that > > > >a) current powerop code does not handle 256 CPU machine, because that > >would need 256 independend bundles, and powerop has hardcoded "only > >one bundle" rule. > > The 256 is only a temporary implementation limitation. Really? 256 CPUs mean 2^256 states. How do you handle that without introducing vectors? > >b) having some devices controlled by powerop and some by specific > >subsystem is indeed ugly. I'd hope powerop would cover all the > >devices. (Or maybe cover _no_ devices). Userland should not need to > >know if touchscreen is part of SoC or if it happens to be independend > >on given machine. > > PowerOP does *not* cover devices. It covers system level parameters > such clocks, buses, voltages. I've seen "usb enabled" in one of examples.. and that sure seems like device to me. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html