From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scetbon Cyril Subject: powernow-k8 and scaling processor Date: Thu, 05 Oct 2006 15:14:55 +0200 Message-ID: <4525054F.1040503@free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp2-g19.free.fr ([212.27.42.28]:31716 "EHLO smtp2-g19.free.fr") by vger.kernel.org with ESMTP id S1750705AbWJENO6 (ORCPT ); Thu, 5 Oct 2006 09:14:58 -0400 Received: from [192.168.1.8] (cre94-1-81-57-162-33.fbx.proxad.net [81.57.162.33]) by smtp2-g19.free.fr (Postfix) with ESMTP id 5C6D075995 for ; Thu, 5 Oct 2006 15:14:57 +0200 (CEST) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Hi people, My processor is a sempron 3100+ : cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 44 model name : Mobile AMD Sempron(tm) 3100+ stepping : 2 cpu MHz : 800.000 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt 3dnowext 3dnow pni lahf_lm ts fid vid ttp tm stc bogomips : 1598.67 I'm using powernow-k8 module to scale my processor on userspace demand. The frequence of my CPU is 1800MHz but it can't be scaled at more than 1600MHz : cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq 1800000 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 1600000 Sometimes the value above is set to 1800000 but I don't know why it's not always set to cpuinfo_max_freq. dmesg|grep -i acpi : ACPI: Core revision 20060623 ACPI: setting ELCR to 0200 (from 0e20) ACPI: bus type pci registered ACPI: Interpreter enabled ACPI: Using PIC for interrupt routing ACPI: PCI Root Bridge [C047] (0000:00) ACPI: Assume root bridge [\_SB_.C047] bus is 0 ACPI: PCI Interrupt Routing Table [\_SB_.C047._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.C047.C048._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.C047.C0AB._PRT] ACPI: Power Resource [C1CF] (off) ACPI: Embedded Controller [C111] (gpe 17) interrupt mode. ACPI: Power Resource [C1B7] (on) ACPI: Power Resource [C1C7] (on) ACPI: PCI Interrupt Link [C0F0] (IRQs *10 11) ACPI: PCI Interrupt Link [C0F1] (IRQs 10 11) *5 ACPI: PCI Interrupt Link [C0F2] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [C0F3] (IRQs *10 11) ACPI: PCI Interrupt Link [C0F4] (IRQs 10 *11) ACPI: PCI Interrupt Link [C0F5] (IRQs *9) ACPI: PCI Interrupt Link [C0F6] (IRQs 10 11) *5 ACPI: PCI Interrupt Link [C0F7] (IRQs *10 11) ACPI: Power Resource [C26C] (off) ACPI: Power Resource [C26D] (off) ACPI: Power Resource [C26E] (off) ACPI: Power Resource [C26F] (off) PCI: Using ACPI for IRQ routing Device `[C1C9]' is not power manageableACPI: PCI Interrupt Link [C0F4] enabled a t IRQ 11 ACPI: PCI Interrupt 0000:02:04.0[A] -> Link [C0F4] -> GSI 11 (level, low) -> IRQ 11 ACPI: PCI Interrupt Link [C0F1] enabled at IRQ 10 ACPI: PCI Interrupt 0000:00:14.6[B] -> Link [C0F1] -> GSI 10 (level, low) -> IRQ 10 ACPI: PCI interrupt for device 0000:00:14.6 disabled Device `[C1CE]' is not power manageableACPI: PCI Interrupt Link [C0F7] enabled a t IRQ 10 ACPI: PCI Interrupt 0000:02:01.0[A] -> Link [C0F7] -> GSI 10 (level, low) -> IRQ 10 ACPI: (supports S0 S3 S4 S5) ACPI: Transitioning device [C270] to D3 ACPI: Transitioning device [C270] to D3 ACPI: Fan [C270] (off) ACPI: Transitioning device [C271] to D3 ACPI: Transitioning device [C271] to D3 ACPI: Fan [C271] (off) ACPI: Transitioning device [C272] to D3 ACPI: Transitioning device [C272] to D3 ACPI: Fan [C272] (off) ACPI: Transitioning device [C273] to D3 ACPI: Transitioning device [C273] to D3 ACPI: Fan [C273] (off) ACPI: CPU0 (power states: C1[C1] C3[C3]) ACPI: Processor [C000] (supports 8 throttling states) ACPI: Thermal Zone [TZ1] (27 C) ACPI: Thermal Zone [TZ2] (23 C) ACPI: Thermal Zone [TZ3] (23 C) ACPI: PCI Interrupt Link [C0F0] enabled at IRQ 10 ACPI: PCI Interrupt 0000:00:14.1[A] -> Link [C0F0] -> GSI 10 (level, low) -> IRQ 10 Time: acpi_pm clocksource has been installed. ACPI: PCI Interrupt Link [C0F3] enabled at IRQ 10 ACPI: PCI Interrupt 0000:00:13.0[A] -> Link [C0F3] -> GSI 10 (level, low) -> IRQ 10 ACPI: PCI Interrupt 0000:00:13.1[A] -> Link [C0F3] -> GSI 10 (level, low) -> IRQ 10 Device `[C0E8]' is not power manageable<6>ACPI: PCI Interrupt 0000:00:13.2[A] -> Link [C0F3] -> GSI 10 (level, low) -> IRQ 10 ACPI: PCI Interrupt Link [C0F5] enabled at IRQ 9 ACPI: PCI Interrupt 0000:02:04.2[C] -> Link [C0F5] -> GSI 9 (level, low) -> IRQ 9 ACPI: PCI Interrupt Link [C0F6] enabled at IRQ 11 ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [C0F6] -> GSI 11 (level, low) -> IRQ 11 ACPI: PCI Interrupt 0000:02:04.4[C] -> Link [C0F5] -> GSI 9 (level, low) -> IRQ 9 ACPI: PCI Interrupt 0000:00:14.5[B] -> Link [C0F1] -> GSI 10 (level, low) -> IRQ 10 ACPI: Battery Slot [C179] (battery present) ACPI: Battery Slot [C178] (battery absent) ACPI: AC Adapter [C177] (off-line) ACPI: Power Button (FF) [PWRF] ACPI: Sleep Button (CM) [C1F0] ACPI: Lid Switch [C1F1] ACPI: Video Device [C049] (multi-head: yes rom: no post: no) Any suggestion ?