diff options
| author | Thomas Renninger <trenn@suse.de> | 2009-02-04 01:17:45 +0100 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2009-02-24 22:47:31 -0500 |
| commit | 57f4fa699195b761cbea90db5e38b4bc15610c7c (patch) | |
| tree | 875a995aa02e9d171a7fd384ac6813b2cc4f805f /arch/x86/kernel/cpu/cpufreq/Kconfig | |
| parent | ed12978453a3845c947695e7ad32bb3ede444813 (diff) | |
[CPUFREQ] powernow-k8: Always compile powernow-k8 driver with ACPI support
powernow-k8 driver should always try to get cpufreq info from ACPI.
Otherwise it will not be able to detect the transition latency correctly
which results in ondemand governor taking a wrong sampling rate which will
then result in sever performance loss.
Let the user not shoot himself in the foot and always compile in ACPI
support for powernow-k8.
This also fixes a wrong message if ACPI_PROCESSOR is compiled as a module and
#ifndef CONFIG_ACPI_PROCESSOR
path is chosen.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/Kconfig')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/Kconfig | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig index 65792c2cc46..52c83987547 100644 --- a/arch/x86/kernel/cpu/cpufreq/Kconfig +++ b/arch/x86/kernel/cpu/cpufreq/Kconfig @@ -87,30 +87,15 @@ config X86_POWERNOW_K7_ACPI config X86_POWERNOW_K8 tristate "AMD Opteron/Athlon64 PowerNow!" select CPU_FREQ_TABLE + depends on ACPI && ACPI_PROCESSOR help - This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors. + This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors. To compile this driver as a module, choose M here: the module will be called powernow-k8. For details, take a look at <file:Documentation/cpu-freq/>. - If in doubt, say N. - -config X86_POWERNOW_K8_ACPI - bool - prompt "ACPI Support" if X86_32 - depends on ACPI && X86_POWERNOW_K8 && ACPI_PROCESSOR - depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m) - default y - help - This provides access to the K8s Processor Performance States via ACPI. - This driver is probably required for CPUFreq to work with multi-socket and - SMP systems. It is not required on at least some single-socket yet - multi-core systems, even if SMP is enabled. - - It is safe to say Y here. - config X86_GX_SUSPMOD tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation" depends on X86_32 && PCI |