From mboxrd@z Thu Jan 1 00:00:00 1970 From: Todd Poynor Date: Thu, 18 Mar 2004 22:59:54 +0000 Subject: Re: add lowpower_idle sysctl Message-Id: <405A29EA.6000400@mvista.com> List-Id: References: <20040317170436.430acfbe.akpm@osdl.org> <200403180318.i2I3IDF03166@unix-os.sc.intel.com> <20040317192821.1fe90f24.akpm@osdl.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Zwane Mwaikambo Cc: Andrew Morton , Kenneth Chen , linux-ia64@vger.kernel.org, Linux Kernel , CPU Freq ML Zwane Mwaikambo wrote: >>Set some system-wide integer via a sysctl and let the particular >>architecture decide how best to implement the currently-selected idle mode? > > I'm wondering whether the setting of these magic numbers can't be done > using cpufreq infrastructure. I'd vote for using Patrick Mochel's PM subsystem and use a standard set of identifiers that are mapped to a platform-specific idle behavior, in much the same way as platform suspend modes are handled today. For example, strings echoed to /sys/power/idle could be an interface. If folks are amenable to this I'd be happy to supply a (generic) patch for it. -- Todd Poynor MontaVista Software