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Update the maximum depth of C-state from 6 to 9

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Hi Jon,

This patch is an old one, we have corrected some minor issues on the newer one.
Please only review the newest version from my last mail with this subject
"[PATCH] ACPI: Update the maximum depth of C-state from 6 to 9".
And I also attached it to this mail.

Thanks,
Baole

On 7/11/2016 6:37 AM, Jonathan Corbet wrote:
> On Mon, 4 Jul 2016 09:55:10 +0800
> "baolex.ni" <baolex.ni@intel.com> wrote:
>
>> Currently, CPUIDLE_STATE_MAX has been defined as 10 in the cpuidle head file,
>> and max_cstate = CPUIDLE_STATE_MAX – 1, so 9 is the right maximum depth of C-state.
>> This change is reflected in one place of the kernel-param file,
>> but not in the other place where I suggest changing.
>>
>> Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
>> Signed-off-by: Baole Ni <baolex.ni@intel.com>
>
> So why are there two signoffs on a single-line patch?  Which one of you
> is the actual author?
>
> Thanks,
>
> jon
>

From cf5f8aa6885874f6490b11507d3c0c86fa0a11f4 Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Mon, 4 Jul 2016 08:52:51 +0800
Subject: [PATCH] Update the maximum depth of C-state from 6 to 9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Currently, CPUIDLE_STATE_MAX has been defined as 10 in the cpuidle head file,
and max_cstate = CPUIDLE_STATE_MAX – 1, so 9 is the right maximum depth of C-state.
This change is reflected in one place of the kernel-param file,
but not in the other place where I suggest changing.

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
baolex.ni 2016-07-11 09:57:37 +08:00 committed by Jonathan Corbet
parent 00445edff3
commit 22c6bbe41e
1 changed files with 1 additions and 1 deletions
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2
Documentation/kernel-parameters.txt
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@ -1688,7 +1688,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
intel_idle.max_cstate= [KNL,HW,ACPI,X86]
0 disables intel_idle and fall back on acpi_idle.
1 to 6 specify maximum depth of C-state.
1 to 9 specify maximum depth of C-state.
intel_pstate= [X86]
disable