| Kconfig.x86 (8c88126bbbb1c1e6c499fb3c211dba93656f02b5) | Kconfig.x86 (3bc28ab6da039f8020bbcea8e832b63a900bdb66) |
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| 1# 2# x86 CPU Frequency scaling drivers 3# 4 5config X86_INTEL_PSTATE 6 bool "Intel P state control" 7 depends on X86 8 help --- 17 unchanged lines hidden (view full) --- 26 27 To compile this driver as a module, choose M here: the 28 module will be called pcc-cpufreq. 29 30 If in doubt, say N. 31 32config X86_ACPI_CPUFREQ 33 tristate "ACPI Processor P-States driver" | 1# 2# x86 CPU Frequency scaling drivers 3# 4 5config X86_INTEL_PSTATE 6 bool "Intel P state control" 7 depends on X86 8 help --- 17 unchanged lines hidden (view full) --- 26 27 To compile this driver as a module, choose M here: the 28 module will be called pcc-cpufreq. 29 30 If in doubt, say N. 31 32config X86_ACPI_CPUFREQ 33 tristate "ACPI Processor P-States driver" |
| 34 select CPU_FREQ_TABLE | |
| 35 depends on ACPI_PROCESSOR 36 help 37 This driver adds a CPUFreq driver which utilizes the ACPI 38 Processor Performance States. 39 This driver also supports Intel Enhanced Speedstep and newer 40 AMD CPUs. 41 42 To compile this driver as a module, choose M here: the --- 12 unchanged lines hidden (view full) --- 55 to disable the Core Performance Boosting feature of AMD CPUs. This 56 file has now been superseeded by the more generic "boost" entry. 57 58 By enabling this option the acpi_cpufreq driver provides the old 59 entry in addition to the new boost ones, for compatibility reasons. 60 61config ELAN_CPUFREQ 62 tristate "AMD Elan SC400 and SC410" | 34 depends on ACPI_PROCESSOR 35 help 36 This driver adds a CPUFreq driver which utilizes the ACPI 37 Processor Performance States. 38 This driver also supports Intel Enhanced Speedstep and newer 39 AMD CPUs. 40 41 To compile this driver as a module, choose M here: the --- 12 unchanged lines hidden (view full) --- 54 to disable the Core Performance Boosting feature of AMD CPUs. This 55 file has now been superseeded by the more generic "boost" entry. 56 57 By enabling this option the acpi_cpufreq driver provides the old 58 entry in addition to the new boost ones, for compatibility reasons. 59 60config ELAN_CPUFREQ 61 tristate "AMD Elan SC400 and SC410" |
| 63 select CPU_FREQ_TABLE | |
| 64 depends on MELAN 65 ---help--- 66 This adds the CPUFreq driver for AMD Elan SC400 and SC410 67 processors. 68 69 You need to specify the processor maximum speed as boot 70 parameter: elanfreq=maxspeed (in kHz) or as module 71 parameter "max_freq". 72 73 For details, take a look at <file:Documentation/cpu-freq/>. 74 75 If in doubt, say N. 76 77config SC520_CPUFREQ 78 tristate "AMD Elan SC520" | 62 depends on MELAN 63 ---help--- 64 This adds the CPUFreq driver for AMD Elan SC400 and SC410 65 processors. 66 67 You need to specify the processor maximum speed as boot 68 parameter: elanfreq=maxspeed (in kHz) or as module 69 parameter "max_freq". 70 71 For details, take a look at <file:Documentation/cpu-freq/>. 72 73 If in doubt, say N. 74 75config SC520_CPUFREQ 76 tristate "AMD Elan SC520" |
| 79 select CPU_FREQ_TABLE | |
| 80 depends on MELAN 81 ---help--- 82 This adds the CPUFreq driver for AMD Elan SC520 processor. 83 84 For details, take a look at <file:Documentation/cpu-freq/>. 85 86 If in doubt, say N. 87 88 89config X86_POWERNOW_K6 90 tristate "AMD Mobile K6-2/K6-3 PowerNow!" | 77 depends on MELAN 78 ---help--- 79 This adds the CPUFreq driver for AMD Elan SC520 processor. 80 81 For details, take a look at <file:Documentation/cpu-freq/>. 82 83 If in doubt, say N. 84 85 86config X86_POWERNOW_K6 87 tristate "AMD Mobile K6-2/K6-3 PowerNow!" |
| 91 select CPU_FREQ_TABLE | |
| 92 depends on X86_32 93 help 94 This adds the CPUFreq driver for mobile AMD K6-2+ and mobile 95 AMD K6-3+ processors. 96 97 For details, take a look at <file:Documentation/cpu-freq/>. 98 99 If in doubt, say N. 100 101config X86_POWERNOW_K7 102 tristate "AMD Mobile Athlon/Duron PowerNow!" | 88 depends on X86_32 89 help 90 This adds the CPUFreq driver for mobile AMD K6-2+ and mobile 91 AMD K6-3+ processors. 92 93 For details, take a look at <file:Documentation/cpu-freq/>. 94 95 If in doubt, say N. 96 97config X86_POWERNOW_K7 98 tristate "AMD Mobile Athlon/Duron PowerNow!" |
| 103 select CPU_FREQ_TABLE | |
| 104 depends on X86_32 105 help 106 This adds the CPUFreq driver for mobile AMD K7 mobile processors. 107 108 For details, take a look at <file:Documentation/cpu-freq/>. 109 110 If in doubt, say N. 111 112config X86_POWERNOW_K7_ACPI 113 bool 114 depends on X86_POWERNOW_K7 && ACPI_PROCESSOR 115 depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m) 116 depends on X86_32 117 default y 118 119config X86_POWERNOW_K8 120 tristate "AMD Opteron/Athlon64 PowerNow!" | 99 depends on X86_32 100 help 101 This adds the CPUFreq driver for mobile AMD K7 mobile processors. 102 103 For details, take a look at <file:Documentation/cpu-freq/>. 104 105 If in doubt, say N. 106 107config X86_POWERNOW_K7_ACPI 108 bool 109 depends on X86_POWERNOW_K7 && ACPI_PROCESSOR 110 depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m) 111 depends on X86_32 112 default y 113 114config X86_POWERNOW_K8 115 tristate "AMD Opteron/Athlon64 PowerNow!" |
| 121 select CPU_FREQ_TABLE | |
| 122 depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ 123 help 124 This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors. 125 Support for K10 and newer processors is now in acpi-cpufreq. 126 127 To compile this driver as a module, choose M here: the 128 module will be called powernow-k8. 129 130 For details, take a look at <file:Documentation/cpu-freq/>. 131 132config X86_AMD_FREQ_SENSITIVITY 133 tristate "AMD frequency sensitivity feedback powersave bias" 134 depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD | 116 depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ 117 help 118 This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors. 119 Support for K10 and newer processors is now in acpi-cpufreq. 120 121 To compile this driver as a module, choose M here: the 122 module will be called powernow-k8. 123 124 For details, take a look at <file:Documentation/cpu-freq/>. 125 126config X86_AMD_FREQ_SENSITIVITY 127 tristate "AMD frequency sensitivity feedback powersave bias" 128 depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD |
| 135 select CPU_FREQ_TABLE | |
| 136 help 137 This adds AMD-specific powersave bias function to the ondemand 138 governor, which allows it to make more power-conscious frequency | 129 help 130 This adds AMD-specific powersave bias function to the ondemand 131 governor, which allows it to make more power-conscious frequency |
| 139 change decisions based on feedback from hardware (available on AMD | 132 change decisions based on feedback from hardware (availble on AMD |
| 140 Family 16h and above). 141 142 Hardware feedback tells software how "sensitive" to frequency changes 143 the CPUs' workloads are. CPU-bound workloads will be more sensitive 144 -- they will perform better as frequency increases. Memory/IO-bound 145 workloads will be less sensitive -- they will not necessarily perform 146 better as frequency increases. 147 --- 7 unchanged lines hidden (view full) --- 155 support suspend modulation. 156 157 For details, take a look at <file:Documentation/cpu-freq/>. 158 159 If in doubt, say N. 160 161config X86_SPEEDSTEP_CENTRINO 162 tristate "Intel Enhanced SpeedStep (deprecated)" | 133 Family 16h and above). 134 135 Hardware feedback tells software how "sensitive" to frequency changes 136 the CPUs' workloads are. CPU-bound workloads will be more sensitive 137 -- they will perform better as frequency increases. Memory/IO-bound 138 workloads will be less sensitive -- they will not necessarily perform 139 better as frequency increases. 140 --- 7 unchanged lines hidden (view full) --- 148 support suspend modulation. 149 150 For details, take a look at <file:Documentation/cpu-freq/>. 151 152 If in doubt, say N. 153 154config X86_SPEEDSTEP_CENTRINO 155 tristate "Intel Enhanced SpeedStep (deprecated)" |
| 163 select CPU_FREQ_TABLE | |
| 164 select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32 165 depends on X86_32 || (X86_64 && ACPI_PROCESSOR) 166 help 167 This is deprecated and this functionality is now merged into 168 acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of 169 speedstep_centrino. 170 This adds the CPUFreq driver for Enhanced SpeedStep enabled 171 mobile CPUs. This means Intel Pentium M (Centrino) CPUs --- 13 unchanged lines hidden (view full) --- 185 help 186 Use built-in tables for Banias CPUs if ACPI encoding 187 is not available. 188 189 If in doubt, say N. 190 191config X86_SPEEDSTEP_ICH 192 tristate "Intel Speedstep on ICH-M chipsets (ioport interface)" | 156 select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32 157 depends on X86_32 || (X86_64 && ACPI_PROCESSOR) 158 help 159 This is deprecated and this functionality is now merged into 160 acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of 161 speedstep_centrino. 162 This adds the CPUFreq driver for Enhanced SpeedStep enabled 163 mobile CPUs. This means Intel Pentium M (Centrino) CPUs --- 13 unchanged lines hidden (view full) --- 177 help 178 Use built-in tables for Banias CPUs if ACPI encoding 179 is not available. 180 181 If in doubt, say N. 182 183config X86_SPEEDSTEP_ICH 184 tristate "Intel Speedstep on ICH-M chipsets (ioport interface)" |
| 193 select CPU_FREQ_TABLE | |
| 194 depends on X86_32 195 help 196 This adds the CPUFreq driver for certain mobile Intel Pentium III 197 (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all 198 mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2, 199 ICH3 or ICH4 southbridge. 200 201 For details, take a look at <file:Documentation/cpu-freq/>. 202 203 If in doubt, say N. 204 205config X86_SPEEDSTEP_SMI 206 tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)" | 185 depends on X86_32 186 help 187 This adds the CPUFreq driver for certain mobile Intel Pentium III 188 (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all 189 mobile Intel Pentium 4 P4-M on systems which have an Intel ICH2, 190 ICH3 or ICH4 southbridge. 191 192 For details, take a look at <file:Documentation/cpu-freq/>. 193 194 If in doubt, say N. 195 196config X86_SPEEDSTEP_SMI 197 tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)" |
| 207 select CPU_FREQ_TABLE | |
| 208 depends on X86_32 209 help 210 This adds the CPUFreq driver for certain mobile Intel Pentium III 211 (Coppermine), all mobile Intel Pentium III-M (Tualatin) 212 on systems which have an Intel 440BX/ZX/MX southbridge. 213 214 For details, take a look at <file:Documentation/cpu-freq/>. 215 216 If in doubt, say N. 217 218config X86_P4_CLOCKMOD 219 tristate "Intel Pentium 4 clock modulation" | 198 depends on X86_32 199 help 200 This adds the CPUFreq driver for certain mobile Intel Pentium III 201 (Coppermine), all mobile Intel Pentium III-M (Tualatin) 202 on systems which have an Intel 440BX/ZX/MX southbridge. 203 204 For details, take a look at <file:Documentation/cpu-freq/>. 205 206 If in doubt, say N. 207 208config X86_P4_CLOCKMOD 209 tristate "Intel Pentium 4 clock modulation" |
| 220 select CPU_FREQ_TABLE | |
| 221 help 222 This adds the CPUFreq driver for Intel Pentium 4 / XEON 223 processors. When enabled it will lower CPU temperature by skipping 224 clocks. 225 226 This driver should be only used in exceptional 227 circumstances when very low power is needed because it causes severe 228 slowdowns and noticeable latencies. Normally Speedstep should be used --- 25 unchanged lines hidden (view full) --- 254 which support LongRun. 255 256 For details, take a look at <file:Documentation/cpu-freq/>. 257 258 If in doubt, say N. 259 260config X86_LONGHAUL 261 tristate "VIA Cyrix III Longhaul" | 210 help 211 This adds the CPUFreq driver for Intel Pentium 4 / XEON 212 processors. When enabled it will lower CPU temperature by skipping 213 clocks. 214 215 This driver should be only used in exceptional 216 circumstances when very low power is needed because it causes severe 217 slowdowns and noticeable latencies. Normally Speedstep should be used --- 25 unchanged lines hidden (view full) --- 243 which support LongRun. 244 245 For details, take a look at <file:Documentation/cpu-freq/>. 246 247 If in doubt, say N. 248 249config X86_LONGHAUL 250 tristate "VIA Cyrix III Longhaul" |
| 262 select CPU_FREQ_TABLE | |
| 263 depends on X86_32 && ACPI_PROCESSOR 264 help 265 This adds the CPUFreq driver for VIA Samuel/CyrixIII, 266 VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T 267 processors. 268 269 For details, take a look at <file:Documentation/cpu-freq/>. 270 271 If in doubt, say N. 272 273config X86_E_POWERSAVER 274 tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)" | 251 depends on X86_32 && ACPI_PROCESSOR 252 help 253 This adds the CPUFreq driver for VIA Samuel/CyrixIII, 254 VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T 255 processors. 256 257 For details, take a look at <file:Documentation/cpu-freq/>. 258 259 If in doubt, say N. 260 261config X86_E_POWERSAVER 262 tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)" |
| 275 select CPU_FREQ_TABLE | |
| 276 depends on X86_32 && ACPI_PROCESSOR 277 help 278 This adds the CPUFreq driver for VIA C7 processors. However, this driver 279 does not have any safeguards to prevent operating the CPU out of spec 280 and is thus considered dangerous. Please use the regular ACPI cpufreq 281 driver, enabled by CONFIG_X86_ACPI_CPUFREQ. 282 283 If in doubt, say N. --- 17 unchanged lines hidden --- | 263 depends on X86_32 && ACPI_PROCESSOR 264 help 265 This adds the CPUFreq driver for VIA C7 processors. However, this driver 266 does not have any safeguards to prevent operating the CPU out of spec 267 and is thus considered dangerous. Please use the regular ACPI cpufreq 268 driver, enabled by CONFIG_X86_ACPI_CPUFREQ. 269 270 If in doubt, say N. --- 17 unchanged lines hidden --- |