On Wednesday 16 May 2007 19:50, Daniel Drake wrote:
> powernow-k8 uses PSB BIOS tables to read frequency info on UP systems, but
> on SMP it requires the acpi-processor driver. Kconfig should be updated
> accordingly to avoid the issues that users are running into.
>
> http://bugzilla.kernel.org/show_bug.cgi?id=8075
> https://bugs.gentoo.org/show_bug.cgi?id=178585
>
> Signed-off-by: Daniel Drake <[email protected]>
>
> Index: linux/arch/i386/kernel/cpu/cpufreq/Kconfig
> ===================================================================
> --- linux.orig/arch/i386/kernel/cpu/cpufreq/Kconfig
> +++ linux/arch/i386/kernel/cpu/cpufreq/Kconfig
> @@ -81,6 +81,7 @@ config X86_POWERNOW_K7_ACPI
> config X86_POWERNOW_K8
> tristate "AMD Opteron/Athlon64 PowerNow!"
> select CPU_FREQ_TABLE
> + select ACPI_PROCESSOR if SMP
> depends on EXPERIMENTAL
> help
> This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
Unfortunately this patch will not actually enable ACPI_PROCESSOR in
the SMP=y ACPI=n case. "select" doesn't work for targets that
have dependencies.
-Len
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