drivers/cpufreq/Kconfig.x86

1 # SPDX-License-Identifier: GPL-2.0-only
12 	select CPU_FREQ_GOV_SCHEDUTIL if SMP
30 	  <file:Documentation/admin-guide/pm/cpufreq_drivers.rst>.
33 	  module will be called pcc-cpufreq.
38 	bool "AMD Processor P-State driver"
42 	select CPU_FREQ_GOV_SCHEDUTIL if SMP
50 	  <file:Documentation/admin-guide/pm/amd-pstate.rst>.
55 	int "AMD Processor P-State default mode"
60 	  Select the default mode the amd-pstate driver will use on
63 		1 -> Disabled
64 		2 -> Passive
65 		3 -> Active (EPP)
66 		4 -> Guided
69 	  <file:Documentation/admin-guide/pm/amd-pstate.rst>.
72 	tristate "selftest for AMD Processor P-State driver"
78 	  It can also be built-in without X86_AMD_PSTATE enabled.
79 	  Currently, only tests for amd-pstate are supported. If X86_AMD_PSTATE
80 	  is set disabled, it can tell the users test can only run on amd-pstate
82 	  In the future, comparison tests will be added. It can set amd-pstate
83 	  disabled and set acpi-cpufreq enabled to run test cases, then compare
87 	tristate "ACPI Processor P-States driver"
96 	  module will be called acpi-cpufreq.
98 	  For details, take a look at <file:Documentation/cpu-freq/>.
107 	  The powernow-k8 driver used to provide a sysfs knob called "cpb"
125 	  For details, take a look at <file:Documentation/cpu-freq/>.
135 	  For details, take a look at <file:Documentation/cpu-freq/>.
141 	tristate "AMD Mobile K6-2/K6-3 PowerNow!"
144 	  This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
145 	  AMD K6-3+ processors.
147 	  For details, take a look at <file:Documentation/cpu-freq/>.
157 	  For details, take a look at <file:Documentation/cpu-freq/>.
173 	  Support for K10 and newer processors is now in acpi-cpufreq.
176 	  module will be called powernow-k8.
178 	  For details, take a look at <file:Documentation/cpu-freq/>.
184 	  This adds AMD-specific powersave bias function to the ondemand
185 	  governor, which allows it to make more power-conscious frequency
190 	  the CPUs' workloads are. CPU-bound workloads will be more sensitive
191 	  -- they will perform better as frequency increases. Memory/IO-bound
192 	  workloads will be less sensitive -- they will not necessarily perform
204 	 For details, take a look at <file:Documentation/cpu-freq/>.
221 	  module will be called speedstep-centrino.
223 	  For details, take a look at <file:Documentation/cpu-freq/>.
228 	bool "Built-in tables for Banias CPUs"
232 	  Use built-in tables for Banias CPUs if ACPI encoding
238 	tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
242 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all
243 	  mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2,
246 	  For details, take a look at <file:Documentation/cpu-freq/>.
255 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin)
258 	  For details, take a look at <file:Documentation/cpu-freq/>.
275 	  module will be called p4-clockmod.
277 	  For details, take a look at <file:Documentation/cpu-freq/>.
288 	  For details, take a look at <file:Documentation/cpu-freq/>.
299 	  For details, take a look at <file:Documentation/cpu-freq/>.
308 	  VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T
311 	  For details, take a look at <file:Documentation/cpu-freq/>.
336 	  Don't perform all checks for a speedstep capable system which would
338 	  capable, don't always indicate that they are speedstep capable. This