From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ryan May" Subject: CPU Performance Management Date: Tue, 1 Apr 2003 21:33:57 -0600 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <00a201c2f8c8$b2019130$89106144@cyclone> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_009F_01C2F896.672D2570" Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org This is a multi-part message in MIME format. ------=_NextPart_000_009F_01C2F896.672D2570 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, I have a Toshiba 2415-s205 with a P4M-2.0GHz and have recently been = toying with ACPI support in the linux kernel. So far, I have gotten two = versions running: The 2.5.66 kernel with the 20030328 ACPI patch and the = 2.4.20 kernel with the 20021222 ACPI patch. Neither of the kernels have = any other patches applied. I am happy to see that (with a quick look) many features work well, = except for an issue with the 20030328 patch. When I cat = /proc/acpi/processor/CPU0/info I get the following output: processor id: 0 acpi id: 1 bus mastering control: yes power management: yes throttling control: no performance management: no limit interface: no Knowing that I have a P4M, I would have expected to have the option of = performance management. Indeed, on the 20021212 patch on a 2.4.20 = kernel, I have both performance management and limit interface enabled. = Anyone have any clue what changed to actually disable performance = management? I've tried disassembling and recompiling my DSDT (using iasl 20030228); = It gives me three identical warnings: Package (0x00) {}, ^ Effective AML package length is zero Could this be my problem? Any help would be greatly appreciated. Ryan May ------=_NextPart_000_009F_01C2F896.672D2570 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

I have a Toshiba 2415-s205 with a = P4M-2.0GHz and=20 have recently been toying with ACPI support in the linux kernel. = So far, I=20 have gotten two versions running: The 2.5.66 kernel with the 20030328 = ACPI patch=20 and the 2.4.20 kernel with the 20021222 ACPI patch. Neither of the = kernels=20 have any other patches applied.

I am happy to see that (with a = quick look)=20 many features work well, except for an issue with the 20030328 = patch. When I cat /proc/acpi/processor/CPU0/info I get the = following=20 output:

processor=20 id: &nbs= p; 0

acpi=20 id: &nbs= p; = ; 1

bus mastering = control: =20 yes

power=20 management: &n= bsp;yes

throttling control: =20 no

performance management: = no

limit interface: =20 = =20 no

Knowing that I have a P4M, I would have = expected to=20 have the option of performance management. Indeed, on the 20021212 = patch=20 on a 2.4.20 kernel, I have both performance management and limit=20 interface enabled. Anyone have any clue what changed to = actually=20 disable performance management?

I've tried disassembling and = recompiling my DSDT=20 (using iasl 20030228); It gives me three identical = warnings:

Package (0x00) {},

&nbs= p; =20 ^ Effective AML package length is zero

Could this be my problem?

Any help would be greatly = appreciated.

Ryan May

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