From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Date: Tue, 23 Mar 2004 09:56:01 +0000 Subject: Re: add lowpower_idle sysctl Message-Id: <20040323095600.GE1505@openzaurus.ucw.cz> List-Id: References: <200403180031.i2I0VQF02038@unix-os.sc.intel.com> In-Reply-To: <200403180031.i2I0VQF02038@unix-os.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Kenneth Chen Cc: linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org Hi! > On ia64, we need runtime control to manage CPU power state in the idle > loop. Logically it means a sysctl entry in /proc/sys/kernel. Even > though this sysctl entry doesn't exist today, lots of arch already has > some sort of API to dynamically enable/disable low power idle state. If you make it "max Cx state to allow", it will be usefull for ACPI people, too... Pavel -- 64 bytes from 195.113.31.123: icmp_seq( ttlQ timeD8769.1 ms