projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | # |
| 2 | # CPU Frequency scaling | |
| 3 | # | |
| 4 | ||
| 5 | menu "CPU Frequency scaling" | |
| 6 | ||
| 7 | source "drivers/cpufreq/Kconfig" | |
| 8 | ||
| 9 | if CPU_FREQ | |
| 10 | ||
| 11 | comment "CPUFreq processor drivers" | |
| 12 | ||
| 13 | config X86_ACPI_CPUFREQ | |
| 14 | tristate "ACPI Processor P-States driver" | |
| 15 | select CPU_FREQ_TABLE | |
| 16 | depends on ACPI_PROCESSOR | |
| 17 | help | |
| 18 | This driver adds a CPUFreq driver which utilizes the ACPI | |
| 19 | Processor Performance States. | |
| 20 | ||
| 21 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 22 | ||
| 23 | If in doubt, say N. | |
| 24 | ||
| 25 | config ELAN_CPUFREQ | |
| bf6fc9fd | 26 | tristate "AMD Elan SC400 and SC410" |
| 1da177e4 LT |
27 | select CPU_FREQ_TABLE |
| 28 | depends on X86_ELAN | |
| 29 | ---help--- | |
| 30 | This adds the CPUFreq driver for AMD Elan SC400 and SC410 | |
| 31 | processors. | |
| 32 | ||
| 33 | You need to specify the processor maximum speed as boot | |
| 34 | parameter: elanfreq=maxspeed (in kHz) or as module | |
| 35 | parameter "max_freq". | |
| 36 | ||
| 37 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 38 | ||
| 39 | If in doubt, say N. | |
| 40 | ||
| bf6fc9fd DJ |
41 | config SC520_CPUFREQ |
| 42 | tristate "AMD Elan SC520" | |
| 43 | select CPU_FREQ_TABLE | |
| 44 | depends on X86_ELAN | |
| 45 | ---help--- | |
| 46 | This adds the CPUFreq driver for AMD Elan SC520 processor. | |
| 47 | ||
| 48 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 49 | ||
| 50 | If in doubt, say N. | |
| 51 | ||
| 52 | ||
| 1da177e4 LT |
53 | config X86_POWERNOW_K6 |
| 54 | tristate "AMD Mobile K6-2/K6-3 PowerNow!" | |
| 55 | select CPU_FREQ_TABLE | |
| 56 | help | |
| 57 | This adds the CPUFreq driver for mobile AMD K6-2+ and mobile | |
| 58 | AMD K6-3+ processors. | |
| 59 | ||
| 60 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 61 | ||
| 62 | If in doubt, say N. | |
| 63 | ||
| 64 | config X86_POWERNOW_K7 | |
| 65 | tristate "AMD Mobile Athlon/Duron PowerNow!" | |
| 66 | select CPU_FREQ_TABLE | |
| 67 | help | |
| 68 | This adds the CPUFreq driver for mobile AMD K7 mobile processors. | |
| 69 | ||
| 70 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 71 | ||
| 72 | If in doubt, say N. | |
| 73 | ||
| 74 | config X86_POWERNOW_K7_ACPI | |
| 75 | bool | |
| 76 | depends on X86_POWERNOW_K7 && ACPI_PROCESSOR | |
| 77 | depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m) | |
| 78 | default y | |
| 79 | ||
| 80 | config X86_POWERNOW_K8 | |
| 81 | tristate "AMD Opteron/Athlon64 PowerNow!" | |
| 82 | select CPU_FREQ_TABLE | |
| 83 | depends on EXPERIMENTAL | |
| 84 | help | |
| 85 | This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors. | |
| 86 | ||
| 87 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 88 | ||
| 89 | If in doubt, say N. | |
| 90 | ||
| 91 | config X86_POWERNOW_K8_ACPI | |
| 92 | bool | |
| 93 | depends on X86_POWERNOW_K8 && ACPI_PROCESSOR | |
| 94 | depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m) | |
| 95 | default y | |
| 96 | ||
| 97 | config X86_GX_SUSPMOD | |
| 98 | tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation" | |
| 99 | help | |
| 100 | This add the CPUFreq driver for NatSemi Geode processors which | |
| 101 | support suspend modulation. | |
| 102 | ||
| 103 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 104 | ||
| 105 | If in doubt, say N. | |
| 106 | ||
| 107 | config X86_SPEEDSTEP_CENTRINO | |
| 108 | tristate "Intel Enhanced SpeedStep" | |
| 109 | select CPU_FREQ_TABLE | |
| 110 | select X86_SPEEDSTEP_CENTRINO_TABLE if (!X86_SPEEDSTEP_CENTRINO_ACPI) | |
| 111 | help | |
| 112 | This adds the CPUFreq driver for Enhanced SpeedStep enabled | |
| 113 | mobile CPUs. This means Intel Pentium M (Centrino) CPUs. However, | |
| 114 | you also need to say Y to "Use ACPI tables to decode..." below | |
| 115 | [which might imply enabling ACPI] if you want to use this driver | |
| 116 | on non-Banias CPUs. | |
| 117 | ||
| 118 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 119 | ||
| 120 | If in doubt, say N. | |
| 121 | ||
| 122 | config X86_SPEEDSTEP_CENTRINO_ACPI | |
| 123 | bool "Use ACPI tables to decode valid frequency/voltage pairs" | |
| 124 | depends on X86_SPEEDSTEP_CENTRINO && ACPI_PROCESSOR | |
| 125 | depends on !(X86_SPEEDSTEP_CENTRINO = y && ACPI_PROCESSOR = m) | |
| 126 | default y | |
| 127 | help | |
| 128 | Use primarily the information provided in the BIOS ACPI tables | |
| 129 | to determine valid CPU frequency and voltage pairings. It is | |
| 130 | required for the driver to work on non-Banias CPUs. | |
| 131 | ||
| 132 | If in doubt, say Y. | |
| 133 | ||
| 134 | config X86_SPEEDSTEP_CENTRINO_TABLE | |
| 135 | bool "Built-in tables for Banias CPUs" | |
| 136 | depends on X86_SPEEDSTEP_CENTRINO | |
| 137 | default y | |
| 138 | help | |
| 139 | Use built-in tables for Banias CPUs if ACPI encoding | |
| 140 | is not available. | |
| 141 | ||
| 142 | If in doubt, say N. | |
| 143 | ||
| 144 | config X86_SPEEDSTEP_ICH | |
| 145 | tristate "Intel Speedstep on ICH-M chipsets (ioport interface)" | |
| 146 | select CPU_FREQ_TABLE | |
| 147 | help | |
| 148 | This adds the CPUFreq driver for certain mobile Intel Pentium III | |
| 149 | (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all | |
| 150 | mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2, | |
| 151 | ICH3 or ICH4 southbridge. | |
| 152 | ||
| 153 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 154 | ||
| 155 | If in doubt, say N. | |
| 156 | ||
| 157 | config X86_SPEEDSTEP_SMI | |
| 158 | tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)" | |
| 159 | select CPU_FREQ_TABLE | |
| 160 | depends on EXPERIMENTAL | |
| 161 | help | |
| 162 | This adds the CPUFreq driver for certain mobile Intel Pentium III | |
| 163 | (Coppermine), all mobile Intel Pentium III-M (Tualatin) | |
| 164 | on systems which have an Intel 440BX/ZX/MX southbridge. | |
| 165 | ||
| 166 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 167 | ||
| 168 | If in doubt, say N. | |
| 169 | ||
| 170 | config X86_P4_CLOCKMOD | |
| 171 | tristate "Intel Pentium 4 clock modulation" | |
| 172 | select CPU_FREQ_TABLE | |
| 173 | help | |
| 174 | This adds the CPUFreq driver for Intel Pentium 4 / XEON | |
| 175 | processors. | |
| 176 | ||
| 177 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 178 | ||
| 179 | If in doubt, say N. | |
| 180 | ||
| 181 | config X86_CPUFREQ_NFORCE2 | |
| 182 | tristate "nVidia nForce2 FSB changing" | |
| 183 | depends on EXPERIMENTAL | |
| 184 | help | |
| 185 | This adds the CPUFreq driver for FSB changing on nVidia nForce2 | |
| 186 | platforms. | |
| 187 | ||
| 188 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 189 | ||
| 190 | If in doubt, say N. | |
| 191 | ||
| 192 | config X86_LONGRUN | |
| 193 | tristate "Transmeta LongRun" | |
| 194 | help | |
| 195 | This adds the CPUFreq driver for Transmeta Crusoe and Efficeon processors | |
| 196 | which support LongRun. | |
| 197 | ||
| 198 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 199 | ||
| 200 | If in doubt, say N. | |
| 201 | ||
| 202 | config X86_LONGHAUL | |
| 203 | tristate "VIA Cyrix III Longhaul" | |
| 204 | select CPU_FREQ_TABLE | |
| 5e8fb971 | 205 | depends on BROKEN |
| 1da177e4 LT |
206 | help |
| 207 | This adds the CPUFreq driver for VIA Samuel/CyrixIII, | |
| 208 | VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T | |
| 209 | processors. | |
| 210 | ||
| 211 | For details, take a look at <file:Documentation/cpu-freq/>. | |
| 212 | ||
| 213 | If in doubt, say N. | |
| 214 | ||
| 215 | comment "shared options" | |
| 216 | ||
| 217 | config X86_ACPI_CPUFREQ_PROC_INTF | |
| 218 | bool "/proc/acpi/processor/../performance interface (deprecated)" | |
| 219 | depends on PROC_FS | |
| 220 | depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI | |
| 221 | help | |
| 222 | This enables the deprecated /proc/acpi/processor/../performance | |
| 223 | interface. While it is helpful for debugging, the generic, | |
| 224 | cross-architecture cpufreq interfaces should be used. | |
| 225 | ||
| 226 | If in doubt, say N. | |
| 227 | ||
| 228 | config X86_SPEEDSTEP_LIB | |
| 229 | tristate | |
| 230 | default X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD | |
| 231 | ||
| 232 | config X86_SPEEDSTEP_RELAXED_CAP_CHECK | |
| 233 | bool "Relaxed speedstep capability checks" | |
| 234 | depends on (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH) | |
| 235 | help | |
| 236 | Don't perform all checks for a speedstep capable system which would | |
| 237 | normally be done. Some ancient or strange systems, though speedstep | |
| 238 | capable, don't always indicate that they are speedstep capable. This | |
| 239 | option lets the probing code bypass some of those checks if the | |
| 240 | parameter "relaxed_check=1" is passed to the module. | |
| 241 | ||
| 242 | endif # CPU_FREQ | |
| 243 | ||
| 244 | endmenu |