help
This driver adds a CPUFreq driver which utilizes the ACPI
Processor Performance States.
- This driver also supports Intel Enhanced Speedstep.
+ This driver also supports Intel Enhanced Speedstep and newer
+ AMD CPUs.
To compile this driver as a module, choose M here: the
module will be called acpi-cpufreq.
If in doubt, say N.
+config X86_ACPI_CPUFREQ_CPB
+ default y
+ bool "Legacy cpb sysfs knob support for AMD CPUs"
+ depends on X86_ACPI_CPUFREQ && CPU_SUP_AMD
+ help
+ The powernow-k8 driver used to provide a sysfs knob called "cpb"
+ to disable the Core Performance Boosting feature of AMD CPUs. This
+ file has now been superseeded by the more generic "boost" entry.
+
+ By enabling this option the acpi_cpufreq driver provides the old
+ entry in addition to the new boost ones, for compatibility reasons.
+
config ELAN_CPUFREQ
tristate "AMD Elan SC400 and SC410"
select CPU_FREQ_TABLE
select CPU_FREQ_TABLE
depends on ACPI && ACPI_PROCESSOR
help
- This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors.
+ This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
+ Support for K10 and newer processors is now in acpi-cpufreq.
To compile this driver as a module, choose M here: the
module will be called powernow-k8.