From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Len Brown <lenb@kernel.org>
Cc: linux-pm@lists.linux-foundation.org, x86@kernel.org,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH] intel_idle: disable HW auto-demotion
Date: Wed, 19 Jan 2011 14:41:52 +0000 [thread overview]
Message-ID: <20110119144152.GA23020@srcf.ucam.org> (raw)
In-Reply-To: <alpine.LFD.2.02.1101182150400.14668@x980>
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
next prev parent reply other threads:[~2011-01-19 14:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-19 2:52 [PATCH] intel_idle: disable HW auto-demotion Len Brown
2011-01-19 5:40 ` [PATCH] intel_idle: disable HW auto-demotion by default (v2) Len Brown
2011-02-16 6:22 ` [PATCH] intel_idle: disable NHM/WSM HW C-state auto-demotion (v3) Len Brown
2011-02-27 16:17 ` Pierre Tardy
2011-02-28 16:08 ` Len Brown
2011-01-19 14:41 ` Matthew Garrett [this message]
2011-02-16 6:19 ` [PATCH] intel_idle: disable HW auto-demotion Len Brown
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