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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: "Yu, Luming" <luming.yu@intel.com>
Cc: Len Brown <lenb@kernel.org>, Philip Langdale <philipl@overt.org>,
	Jeff Garrett <jeff@jgarrett.org>,
	Andi Kleen <andi@firstfloor.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	"venki@google.com" <venki@google.com>
Subject: Re: acpi_idle: Very idle Core i7 machine never enters C3
Date: Tue, 25 May 2010 13:39:05 +0100	[thread overview]
Message-ID: <20100525123905.GB7876@srcf.ucam.org> (raw)
In-Reply-To: <CE761E84DADF2947A4AF22FB8D97A4731E0366B5@shsmsx501.ccr.corp.intel.com>

On Tue, May 25, 2010 at 01:59:39PM +0800, Yu, Luming wrote:

> On some platforms like NHM-EX, I was told that it's a NOP,
> But I might be given wrong information at that time when I wrote that patch.
> 
> IIRC, acpi spec just say it's optional..

Implementing it is optional, but the spec implies that it should be used 
if it's present.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2010-05-25 12:39 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-26  8:47 acpi_idle: Very idle Core i7 machine never enters C3 Jeff Garrett
2010-01-26 12:41 ` peng huang
2010-01-26 12:41   ` peng huang
2010-01-26 14:59   ` Jeff Garrett
2010-01-26 14:59     ` Jeff Garrett
2010-01-27 13:27     ` peng huang
2010-01-27 13:27       ` peng huang
2010-02-05 16:22       ` Jeff Garrett
2010-02-05 16:22         ` Jeff Garrett
2010-01-26 21:45 ` Andi Kleen
2010-01-26 21:45   ` Andi Kleen
2010-02-05 16:09   ` Jeff Garrett
2010-02-05 17:45     ` Len Brown
2010-02-05 20:53       ` Jeff Garrett
2010-04-27  2:40       ` Philip Langdale
2010-04-27  7:26         ` Len Brown
2010-04-27 15:41           ` Philip Langdale
2010-04-27 12:47         ` Jeff Garrett
2010-04-30 14:57           ` Philip Langdale
2010-04-30 14:57             ` Philip Langdale
2010-04-30 16:25           ` Len Brown
2010-04-30 17:44             ` Matthew Garrett
2010-04-30 18:35               ` Philip Langdale
2010-04-30 18:35                 ` Philip Langdale
2010-05-25  5:43                 ` Len Brown
2010-05-25  5:59                   ` Yu, Luming
2010-05-25 12:39                     ` Matthew Garrett [this message]
2010-05-25 12:43                     ` Matthew Garrett
2010-05-25 12:43                       ` Matthew Garrett
2010-05-25 15:33                       ` Len Brown
2010-05-25 18:55                         ` Matthew Garrett
2010-07-21 21:31                           ` [PATCH] ACPI: make acpi_idle Nehalem-aware Len Brown
2010-07-22  0:53                             ` Venkatesh Pallipadi
2010-07-22  0:53                               ` Venkatesh Pallipadi
2010-07-22  7:47                             ` Andi Kleen
2010-07-22 15:57                               ` Len Brown
2010-07-22 21:21                                 ` [PATCH] ACPI: skip checking BM_STS if the BIOS doesn't ask for it Len Brown
2010-07-22 21:40                                   ` [PATCH] ACPI: create "processor.bm_check_disable" boot param Len Brown
2010-07-26  7:24                                     ` Andi Kleen
2010-07-26  7:24                                       ` Andi Kleen
2010-07-27  0:19                                       ` Len Brown
2010-07-27 11:28                                         ` Andi Kleen
2010-07-28 18:58                                           ` Len Brown
2010-07-22 21:25                                 ` [PATCH] ACPI: make acpi_idle Nehalem-aware Iain
2010-07-22 21:53                                   ` Iain
2010-07-22 22:01                                   ` Len Brown
2010-07-23 12:40                                     ` Iain
2010-08-03  6:55                             ` Pavel Machek
2010-08-03  7:05                               ` Andi Kleen
2010-05-25 12:37                   ` acpi_idle: Very idle Core i7 machine never enters C3 Matthew Garrett
2010-05-25 15:40                     ` Len Brown
2010-07-22  5:34           ` Len Brown
2010-02-01 14:10 ` Pavel Machek
2010-02-05 16:30   ` Jeff Garrett

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