From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH] intel_idle: disable HW auto-demotion Date: Wed, 19 Jan 2011 14:41:52 +0000 Message-ID: <20110119144152.GA23020@srcf.ucam.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:35565 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754185Ab1ASOmB (ORCPT ); Wed, 19 Jan 2011 09:42:01 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: linux-pm@lists.linux-foundation.org, x86@kernel.org, linux-acpi@vger.kernel.org On Tue, Jan 18, 2011 at 09:52:26PM -0500, Len Brown wrote: > + * Disable HW auto demotion on tick-less idle kernels > + */ > +static unsigned int has_nhm_snb_hw_auto_demotion; > +#ifdef CONFIG_NO_HZ > +static unsigned int auto_demotion; > +#else > +static unsigned int auto_demotion = 1; > +#endif What if someone boots with nohz=off? Just so I'm clear on this - this is unrelated to the auto-popup on DMA, right? -- Matthew Garrett | mjg59@srcf.ucam.org