From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Re: powerpc/cell/cpufreq: add spu aware cpufreq governor Date: Tue, 8 Jul 2008 11:27:28 -0400 Message-ID: <20080708152728.GF4997@codemonkey.org.uk> References: <200807071702.31240.arnd@arndb.de> <20080707213105.GD4997@codemonkey.org.uk> <200807080843.43674.arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <200807080843.43674.arnd@arndb.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk To: Arnd Bergmann Cc: Stephen Rothwell , cpufreq@lists.linux.org.uk, linuxppc-dev@ozlabs.org, Jeremy Kerr , Benjamin Herrenschmidt , cbe-oss-dev@ozlabs.org On Tue, Jul 08, 2008 at 08:43:43AM +0200, Arnd Bergmann wrote: > On Monday 07 July 2008, Dave Jones wrote: > > One question I do have though, is how userspace scripts are supposed > > to know they're to echo cbe_spu_governor into the relevant parts of > > sysfs. =A0I've not used anything with a cell. Do they expose the SPUs > > as regular CPUs, or do they show up in a different part of the tree? > = > An SPU is very different from a CPU from the user perspective. > SPUs show up in /sys/devices/system/spus, and if a user wants to access > them, the "spufs" file system needs to be mounted in the system, by > convention on /spu. = Ok, that should be fairly simple to write scripts for. All sounds good to me. Dave -- = http://www.codemonkey.org.uk