51b2833060
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
109 lines
2.9 KiB
Plaintext
109 lines
2.9 KiB
Plaintext
#
|
|
# CPU Frequency scaling
|
|
#
|
|
|
|
menu "CPU Frequency scaling"
|
|
|
|
source "drivers/cpufreq/Kconfig"
|
|
|
|
if CPU_FREQ
|
|
|
|
comment "CPUFreq processor drivers"
|
|
|
|
config X86_POWERNOW_K8
|
|
tristate "AMD Opteron/Athlon64 PowerNow!"
|
|
select CPU_FREQ_TABLE
|
|
help
|
|
This adds the CPUFreq driver for mobile AMD 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
|
|
depends on X86_POWERNOW_K8 && ACPI_PROCESSOR
|
|
depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
|
|
default y
|
|
|
|
config X86_SPEEDSTEP_CENTRINO
|
|
tristate "Intel Enhanced SpeedStep (deprecated)"
|
|
select CPU_FREQ_TABLE
|
|
depends on ACPI_PROCESSOR
|
|
help
|
|
This is deprecated and this functionality is now merged into
|
|
acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
|
|
speedstep_centrino.
|
|
This adds the CPUFreq driver for Enhanced SpeedStep enabled
|
|
mobile CPUs. This means Intel Pentium M (Centrino) CPUs
|
|
or 64bit enabled Intel Xeons.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called speedstep-centrino.
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
If in doubt, say N.
|
|
|
|
config X86_ACPI_CPUFREQ
|
|
tristate "ACPI Processor P-States driver"
|
|
select CPU_FREQ_TABLE
|
|
depends on ACPI_PROCESSOR
|
|
help
|
|
This driver adds a CPUFreq driver which utilizes the ACPI
|
|
Processor Performance States.
|
|
This driver also supports Intel Enhanced Speedstep.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called acpi-cpufreq.
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
If in doubt, say N.
|
|
|
|
comment "shared options"
|
|
|
|
config X86_ACPI_CPUFREQ_PROC_INTF
|
|
bool "/proc/acpi/processor/../performance interface (deprecated)"
|
|
depends on PROC_FS
|
|
depends on X86_ACPI_CPUFREQ || X86_POWERNOW_K8_ACPI
|
|
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.
|
|
|
|
config X86_P4_CLOCKMOD
|
|
tristate "Intel Pentium 4 clock modulation"
|
|
depends on EMBEDDED
|
|
select CPU_FREQ_TABLE
|
|
help
|
|
This adds the clock modulation driver for Intel Pentium 4 / XEON
|
|
processors. When enabled it will lower CPU temperature by skipping
|
|
clocks.
|
|
|
|
This driver should be only used in exceptional
|
|
circumstances when very low power is needed because it causes severe
|
|
slowdowns and noticeable latencies. Normally Speedstep should be used
|
|
instead.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called p4-clockmod.
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
Unless you are absolutely sure say N.
|
|
|
|
|
|
config X86_SPEEDSTEP_LIB
|
|
tristate
|
|
default X86_P4_CLOCKMOD
|
|
|
|
endif
|
|
|
|
endmenu
|