If in doubt, say N.
+config X86_POWERNOW_K8_ACPI
+ bool
+ depends on ((X86_POWERNOW_K8 = "m" && ACPI_PROCESSOR) || (X86_POWERNOW_K8 = "y" && ACPI_PROCESSOR = "y"))
+ default y
+
+config X86_SPEEDSTEP_CENTRINO
+ tristate "Intel Enhanced SpeedStep"
+ depends on CPU_FREQ_TABLE
+ help
+ This adds the CPUFreq driver for Enhanced SpeedStep enabled
+ mobile CPUs. This means Intel Pentium M (Centrino) CPUs
+ or 64bit enabled Intel Xeons.
+
+ For details, take a look at <file:Documentation/cpu-freq/>.
+
+ If in doubt, say N.
+
+config X86_SPEEDSTEP_CENTRINO_TABLE
+ bool
+ depends on X86_SPEEDSTEP_CENTRINO
+ default y
+
+config X86_SPEEDSTEP_CENTRINO_ACPI
+ bool "Use ACPI tables to decode valid frequency/voltage pairs (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on ((X86_SPEEDSTEP_CENTRINO = "m" && ACPI_PROCESSOR) || (X86_SPEEDSTEP_CENTRINO = "y" && ACPI_PROCESSOR = "y"))
+ help
+ Use primarily the information provided in the BIOS ACPI tables
+ to determine valid CPU frequency and voltage pairings.
+
+ If in doubt, say Y.
+
+config X86_ACPI_CPUFREQ
+ tristate "ACPI Processor P-States driver"
+ depends on CPU_FREQ_TABLE && ACPI_PROCESSOR
+ help
+ This driver adds a CPUFreq driver which utilizes the ACPI
+ Processor Performance States.
+
+ For details, take a look at <file:Documentation/cpu-freq/>.
+
+ If in doubt, say N.
+
+config X86_ACPI_CPUFREQ_PROC_INTF
+ bool "/proc/acpi/processor/../performance interface (deprecated)"
+ depends on X86_ACPI_CPUFREQ && PROC_FS
+ help
+ This enables the deprecated /proc/acpi/processor/../performance
+ interface. While it is helpful for debugging, the generic,
+ cross-architecture cpufreq interfaces should be used.
+
+ If in doubt, say N.
+
endmenu
+