2005-04-16 22:20:36 +00:00
|
|
|
#
|
|
|
|
# CPU Frequency scaling
|
|
|
|
#
|
|
|
|
|
|
|
|
menu "CPU Frequency scaling"
|
|
|
|
|
|
|
|
source "drivers/cpufreq/Kconfig"
|
|
|
|
|
|
|
|
if CPU_FREQ
|
|
|
|
|
|
|
|
comment "CPUFreq processor drivers"
|
|
|
|
|
|
|
|
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.
|
2006-10-03 19:34:28 +00:00
|
|
|
This driver also supports Intel Enhanced Speedstep.
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config ELAN_CPUFREQ
|
2005-06-01 02:03:45 +00:00
|
|
|
tristate "AMD Elan SC400 and SC410"
|
2005-04-16 22:20:36 +00:00
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
depends on X86_ELAN
|
|
|
|
---help---
|
|
|
|
This adds the CPUFreq driver for AMD Elan SC400 and SC410
|
|
|
|
processors.
|
|
|
|
|
|
|
|
You need to specify the processor maximum speed as boot
|
|
|
|
parameter: elanfreq=maxspeed (in kHz) or as module
|
|
|
|
parameter "max_freq".
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
2005-06-01 02:03:45 +00:00
|
|
|
config SC520_CPUFREQ
|
|
|
|
tristate "AMD Elan SC520"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
depends on X86_ELAN
|
|
|
|
---help---
|
|
|
|
This adds the CPUFreq driver for AMD Elan SC520 processor.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
config X86_POWERNOW_K6
|
|
|
|
tristate "AMD Mobile K6-2/K6-3 PowerNow!"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
|
|
|
|
AMD K6-3+ processors.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_POWERNOW_K7
|
|
|
|
tristate "AMD Mobile Athlon/Duron PowerNow!"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for mobile AMD K7 mobile processors.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_POWERNOW_K7_ACPI
|
|
|
|
bool
|
|
|
|
depends on X86_POWERNOW_K7 && ACPI_PROCESSOR
|
|
|
|
depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m)
|
|
|
|
default y
|
|
|
|
|
|
|
|
config X86_POWERNOW_K8
|
|
|
|
tristate "AMD Opteron/Athlon64 PowerNow!"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
depends on EXPERIMENTAL
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
|
|
|
|
|
|
|
|
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_GX_SUSPMOD
|
|
|
|
tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
|
2006-07-08 20:20:26 +00:00
|
|
|
depends on PCI
|
2005-04-16 22:20:36 +00:00
|
|
|
help
|
|
|
|
This add the CPUFreq driver for NatSemi Geode processors which
|
|
|
|
support suspend modulation.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_CENTRINO
|
|
|
|
tristate "Intel Enhanced SpeedStep"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
select X86_SPEEDSTEP_CENTRINO_TABLE if (!X86_SPEEDSTEP_CENTRINO_ACPI)
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for Enhanced SpeedStep enabled
|
|
|
|
mobile CPUs. This means Intel Pentium M (Centrino) CPUs. However,
|
|
|
|
you also need to say Y to "Use ACPI tables to decode..." below
|
|
|
|
[which might imply enabling ACPI] if you want to use this driver
|
|
|
|
on non-Banias CPUs.
|
2006-03-11 21:04:53 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
2006-03-11 21:04:53 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_CENTRINO_ACPI
|
2006-10-03 19:34:28 +00:00
|
|
|
bool "Use ACPI tables to decode valid frequency/voltage (deprecated)"
|
2005-04-16 22:20:36 +00:00
|
|
|
depends on X86_SPEEDSTEP_CENTRINO && ACPI_PROCESSOR
|
|
|
|
depends on !(X86_SPEEDSTEP_CENTRINO = y && ACPI_PROCESSOR = m)
|
|
|
|
help
|
2006-10-03 19:34:28 +00:00
|
|
|
This is deprecated and this functionality is now merged into
|
|
|
|
acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
|
|
|
|
speedstep_centrino.
|
2005-04-16 22:20:36 +00:00
|
|
|
Use primarily the information provided in the BIOS ACPI tables
|
|
|
|
to determine valid CPU frequency and voltage pairings. It is
|
|
|
|
required for the driver to work on non-Banias CPUs.
|
|
|
|
|
|
|
|
If in doubt, say Y.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_CENTRINO_TABLE
|
|
|
|
bool "Built-in tables for Banias CPUs"
|
|
|
|
depends on X86_SPEEDSTEP_CENTRINO
|
|
|
|
default y
|
|
|
|
help
|
|
|
|
Use built-in tables for Banias CPUs if ACPI encoding
|
|
|
|
is not available.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_ICH
|
|
|
|
tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for certain mobile Intel Pentium III
|
|
|
|
(Coppermine), all mobile Intel Pentium III-M (Tualatin) and all
|
2006-03-11 21:04:53 +00:00
|
|
|
mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2,
|
2005-04-16 22:20:36 +00:00
|
|
|
ICH3 or ICH4 southbridge.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_SMI
|
|
|
|
tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
depends on EXPERIMENTAL
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for certain mobile Intel Pentium III
|
2006-03-11 21:04:53 +00:00
|
|
|
(Coppermine), all mobile Intel Pentium III-M (Tualatin)
|
2005-04-16 22:20:36 +00:00
|
|
|
on systems which have an Intel 440BX/ZX/MX southbridge.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_P4_CLOCKMOD
|
|
|
|
tristate "Intel Pentium 4 clock modulation"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for Intel Pentium 4 / XEON
|
|
|
|
processors.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_CPUFREQ_NFORCE2
|
|
|
|
tristate "nVidia nForce2 FSB changing"
|
|
|
|
depends on EXPERIMENTAL
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for FSB changing on nVidia nForce2
|
|
|
|
platforms.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_LONGRUN
|
|
|
|
tristate "Transmeta LongRun"
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for Transmeta Crusoe and Efficeon processors
|
|
|
|
which support LongRun.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_LONGHAUL
|
|
|
|
tristate "VIA Cyrix III Longhaul"
|
|
|
|
select CPU_FREQ_TABLE
|
2006-07-03 05:19:05 +00:00
|
|
|
depends on ACPI_PROCESSOR
|
2005-04-16 22:20:36 +00:00
|
|
|
help
|
2006-03-11 21:04:53 +00:00
|
|
|
This adds the CPUFreq driver for VIA Samuel/CyrixIII,
|
|
|
|
VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T
|
2005-04-16 22:20:36 +00:00
|
|
|
processors.
|
|
|
|
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq/>.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
2007-02-05 18:57:25 +00:00
|
|
|
config X86_E_POWERSAVER
|
|
|
|
tristate "VIA C7 Enhanced PowerSaver (EXPERIMENTAL)"
|
|
|
|
select CPU_FREQ_TABLE
|
|
|
|
depends on EXPERIMENTAL
|
|
|
|
help
|
|
|
|
This adds the CPUFreq driver for VIA C7 processors.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
comment "shared options"
|
|
|
|
|
|
|
|
config X86_ACPI_CPUFREQ_PROC_INTF
|
2006-03-11 21:04:53 +00:00
|
|
|
bool "/proc/acpi/processor/../performance interface (deprecated)"
|
2005-04-16 22:20:36 +00:00
|
|
|
depends on PROC_FS
|
|
|
|
depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI
|
|
|
|
help
|
2006-03-11 21:04:53 +00:00
|
|
|
This enables the deprecated /proc/acpi/processor/../performance
|
2005-04-16 22:20:36 +00:00
|
|
|
interface. While it is helpful for debugging, the generic,
|
|
|
|
cross-architecture cpufreq interfaces should be used.
|
|
|
|
|
|
|
|
If in doubt, say N.
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_LIB
|
|
|
|
tristate
|
|
|
|
default X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD
|
|
|
|
|
|
|
|
config X86_SPEEDSTEP_RELAXED_CAP_CHECK
|
|
|
|
bool "Relaxed speedstep capability checks"
|
|
|
|
depends on (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
|
|
|
|
help
|
2006-03-11 21:04:53 +00:00
|
|
|
Don't perform all checks for a speedstep capable system which would
|
|
|
|
normally be done. Some ancient or strange systems, though speedstep
|
|
|
|
capable, don't always indicate that they are speedstep capable. This
|
2005-04-16 22:20:36 +00:00
|
|
|
option lets the probing code bypass some of those checks if the
|
|
|
|
parameter "relaxed_check=1" is passed to the module.
|
|
|
|
|
|
|
|
endif # CPU_FREQ
|
|
|
|
|
|
|
|
endmenu
|