Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1 | # For a description of the syntax of this configuration file, |
| 2 | # see Documentation/kbuild/kconfig-language.txt. |
| 3 | # |
| 4 | |
| 5 | mainmenu "Linux/PowerPC Kernel Configuration" |
| 6 | |
| 7 | config PPC64 |
| 8 | bool "64-bit kernel" |
| 9 | default n |
| 10 | help |
| 11 | This option selects whether a 32-bit or a 64-bit kernel |
| 12 | will be built. |
| 13 | |
| 14 | config PPC32 |
| 15 | bool |
| 16 | default y if !PPC64 |
| 17 | |
| 18 | config 64BIT |
| 19 | bool |
| 20 | default y if PPC64 |
| 21 | |
| 22 | config PPC_MERGE |
| 23 | def_bool y |
| 24 | |
| 25 | config MMU |
| 26 | bool |
| 27 | default y |
| 28 | |
| 29 | config UID16 |
| 30 | bool |
| 31 | |
| 32 | config GENERIC_HARDIRQS |
| 33 | bool |
| 34 | default y |
| 35 | |
| 36 | config RWSEM_GENERIC_SPINLOCK |
| 37 | bool |
| 38 | |
| 39 | config RWSEM_XCHGADD_ALGORITHM |
| 40 | bool |
| 41 | default y |
| 42 | |
| 43 | config GENERIC_CALIBRATE_DELAY |
| 44 | bool |
| 45 | default y |
| 46 | |
| 47 | config PPC |
| 48 | bool |
| 49 | default y |
| 50 | |
| 51 | config EARLY_PRINTK |
| 52 | bool |
| 53 | default y if PPC64 |
| 54 | |
| 55 | config COMPAT |
| 56 | bool |
| 57 | default y if PPC64 |
| 58 | |
| 59 | config SYSVIPC_COMPAT |
| 60 | bool |
| 61 | depends on COMPAT && SYSVIPC |
| 62 | default y |
| 63 | |
| 64 | # All PPC32s use generic nvram driver through ppc_md |
| 65 | config GENERIC_NVRAM |
| 66 | bool |
| 67 | default y if PPC32 |
| 68 | |
| 69 | config SCHED_NO_NO_OMIT_FRAME_POINTER |
| 70 | bool |
| 71 | default y |
| 72 | |
| 73 | config ARCH_MAY_HAVE_PC_FDC |
| 74 | bool |
| 75 | default y |
| 76 | |
| 77 | menu "Processor support" |
| 78 | choice |
| 79 | prompt "Processor Type" |
| 80 | depends on PPC32 |
| 81 | default 6xx |
| 82 | |
| 83 | config 6xx |
| 84 | bool "6xx/7xx/74xx" |
| 85 | select PPC_FPU |
| 86 | help |
| 87 | There are four families of PowerPC chips supported. The more common |
| 88 | types (601, 603, 604, 740, 750, 7400), the Motorola embedded |
| 89 | versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC |
| 90 | embedded versions (403 and 405) and the high end 64 bit Power |
| 91 | processors (POWER 3, POWER4, and IBM PPC970 also known as G5). |
| 92 | |
| 93 | Unless you are building a kernel for one of the embedded processor |
| 94 | systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. |
| 95 | Note that the kernel runs in 32-bit mode even on 64-bit chips. |
| 96 | |
| 97 | config PPC_52xx |
| 98 | bool "Freescale 52xx" |
| 99 | |
| 100 | config PPC_82xx |
| 101 | bool "Freescale 82xx" |
| 102 | |
| 103 | config PPC_83xx |
| 104 | bool "Freescale 83xx" |
| 105 | |
| 106 | config 40x |
| 107 | bool "AMCC 40x" |
| 108 | |
| 109 | config 44x |
| 110 | bool "AMCC 44x" |
| 111 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 112 | config 8xx |
| 113 | bool "Freescale 8xx" |
| 114 | |
| 115 | config E200 |
| 116 | bool "Freescale e200" |
| 117 | |
| 118 | config E500 |
| 119 | bool "Freescale e500" |
| 120 | endchoice |
| 121 | |
| 122 | config POWER4_ONLY |
| 123 | bool "Optimize for POWER4" |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 124 | depends on PPC64 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 125 | default n |
| 126 | ---help--- |
| 127 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. |
| 128 | The resulting binary will not work on POWER3 or RS64 processors |
| 129 | when compiled with binutils 2.15 or later. |
| 130 | |
| 131 | config POWER3 |
| 132 | bool |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 133 | depends on PPC64 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 134 | default y if !POWER4_ONLY |
| 135 | |
| 136 | config POWER4 |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 137 | depends on PPC64 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 138 | def_bool y |
| 139 | |
| 140 | config PPC_FPU |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 141 | bool |
| 142 | default y if PPC64 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 143 | |
| 144 | config BOOKE |
| 145 | bool |
| 146 | depends on E200 || E500 |
| 147 | default y |
| 148 | |
| 149 | config FSL_BOOKE |
| 150 | bool |
| 151 | depends on E200 || E500 |
| 152 | default y |
| 153 | |
| 154 | config PTE_64BIT |
| 155 | bool |
| 156 | depends on 44x || E500 |
| 157 | default y if 44x |
| 158 | default y if E500 && PHYS_64BIT |
| 159 | |
| 160 | config PHYS_64BIT |
| 161 | bool 'Large physical address support' if E500 |
| 162 | depends on 44x || E500 |
| 163 | default y if 44x |
| 164 | ---help--- |
| 165 | This option enables kernel support for larger than 32-bit physical |
| 166 | addresses. This features is not be available on all e500 cores. |
| 167 | |
| 168 | If in doubt, say N here. |
| 169 | |
| 170 | config ALTIVEC |
| 171 | bool "AltiVec Support" |
| 172 | depends on 6xx || POWER4 |
| 173 | ---help--- |
| 174 | This option enables kernel support for the Altivec extensions to the |
| 175 | PowerPC processor. The kernel currently supports saving and restoring |
| 176 | altivec registers, and turning on the 'altivec enable' bit so user |
| 177 | processes can execute altivec instructions. |
| 178 | |
| 179 | This option is only usefully if you have a processor that supports |
| 180 | altivec (G4, otherwise known as 74xx series), but does not have |
| 181 | any affect on a non-altivec cpu (it does, however add code to the |
| 182 | kernel). |
| 183 | |
| 184 | If in doubt, say Y here. |
| 185 | |
| 186 | config SPE |
| 187 | bool "SPE Support" |
| 188 | depends on E200 || E500 |
| 189 | ---help--- |
| 190 | This option enables kernel support for the Signal Processing |
| 191 | Extensions (SPE) to the PowerPC processor. The kernel currently |
| 192 | supports saving and restoring SPE registers, and turning on the |
| 193 | 'spe enable' bit so user processes can execute SPE instructions. |
| 194 | |
| 195 | This option is only useful if you have a processor that supports |
| 196 | SPE (e500, otherwise known as 85xx series), but does not have any |
| 197 | effect on a non-spe cpu (it does, however add code to the kernel). |
| 198 | |
| 199 | If in doubt, say Y here. |
| 200 | |
| 201 | config PPC_STD_MMU |
| 202 | bool |
| 203 | depends on 6xx || POWER3 || POWER4 || PPC64 |
| 204 | default y |
| 205 | |
| 206 | config PPC_STD_MMU_32 |
| 207 | def_bool y |
| 208 | depends on PPC_STD_MMU && PPC32 |
| 209 | |
| 210 | config SMP |
| 211 | depends on PPC_STD_MMU |
| 212 | bool "Symmetric multi-processing support" |
| 213 | ---help--- |
| 214 | This enables support for systems with more than one CPU. If you have |
| 215 | a system with only one CPU, say N. If you have a system with more |
| 216 | than one CPU, say Y. Note that the kernel does not currently |
| 217 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors |
| 218 | since they have inadequate hardware support for multiprocessor |
| 219 | operation. |
| 220 | |
| 221 | If you say N here, the kernel will run on single and multiprocessor |
| 222 | machines, but will use only one CPU of a multiprocessor machine. If |
| 223 | you say Y here, the kernel will run on single-processor machines. |
| 224 | On a single-processor machine, the kernel will run faster if you say |
| 225 | N here. |
| 226 | |
| 227 | If you don't know what to do here, say N. |
| 228 | |
| 229 | config NR_CPUS |
| 230 | int "Maximum number of CPUs (2-32)" |
| 231 | range 2 128 |
| 232 | depends on SMP |
| 233 | default "32" if PPC64 |
| 234 | default "4" |
| 235 | |
| 236 | config NOT_COHERENT_CACHE |
| 237 | bool |
| 238 | depends on 4xx || 8xx || E200 |
| 239 | default y |
| 240 | endmenu |
| 241 | |
| 242 | source "init/Kconfig" |
| 243 | |
| 244 | menu "Platform support" |
| 245 | depends on PPC64 || 6xx |
| 246 | |
| 247 | choice |
| 248 | prompt "Machine type" |
| 249 | default PPC_MULTIPLATFORM |
| 250 | |
| 251 | config PPC_MULTIPLATFORM |
| 252 | bool "Generic desktop/server/laptop" |
| 253 | help |
| 254 | Select this option if configuring for an IBM pSeries or |
| 255 | RS/6000 machine, an Apple machine, or a PReP, CHRP, |
| 256 | Maple or Cell-based machine. |
| 257 | |
| 258 | config PPC_ISERIES |
| 259 | bool "IBM Legacy iSeries" |
| 260 | depends on PPC64 |
| 261 | |
| 262 | config EMBEDDED6xx |
| 263 | bool "Embedded 6xx/7xx/7xxx-based board" |
Paul Mackerras | 5be396b | 2005-11-14 17:31:55 +1100 | [diff] [blame^] | 264 | depends on PPC32 && BROKEN |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 265 | |
| 266 | config APUS |
| 267 | bool "Amiga-APUS" |
| 268 | depends on PPC32 && BROKEN |
| 269 | help |
| 270 | Select APUS if configuring for a PowerUP Amiga. |
| 271 | More information is available at: |
| 272 | <http://linux-apus.sourceforge.net/>. |
| 273 | endchoice |
| 274 | |
| 275 | config PPC_PSERIES |
| 276 | depends on PPC_MULTIPLATFORM && PPC64 |
| 277 | bool " IBM pSeries & new (POWER5-based) iSeries" |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 278 | select PPC_I8259 |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 279 | select PPC_RTAS |
| 280 | select RTAS_ERROR_LOGGING |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 281 | default y |
| 282 | |
| 283 | config PPC_CHRP |
| 284 | bool " Common Hardware Reference Platform (CHRP) based machines" |
| 285 | depends on PPC_MULTIPLATFORM && PPC32 |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 286 | select PPC_I8259 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 287 | select PPC_INDIRECT_PCI |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 288 | select PPC_RTAS |
Paul Mackerras | 830825d | 2005-10-26 17:16:38 +1000 | [diff] [blame] | 289 | select PPC_MPC106 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 290 | default y |
| 291 | |
| 292 | config PPC_PMAC |
| 293 | bool " Apple PowerMac based machines" |
| 294 | depends on PPC_MULTIPLATFORM |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 295 | select PPC_INDIRECT_PCI if PPC32 |
Paul Mackerras | b6a4ce5 | 2005-10-26 22:54:17 +1000 | [diff] [blame] | 296 | select PPC_MPC106 if PPC32 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 297 | default y |
| 298 | |
| 299 | config PPC_PMAC64 |
| 300 | bool |
| 301 | depends on PPC_PMAC && POWER4 |
Paul Mackerras | 35499c0 | 2005-10-22 16:02:39 +1000 | [diff] [blame] | 302 | select U3_DART |
Paul Mackerras | 8ad200d | 2005-11-04 13:28:58 +1100 | [diff] [blame] | 303 | select GENERIC_TBSYNC |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 304 | default y |
| 305 | |
| 306 | config PPC_PREP |
| 307 | bool " PowerPC Reference Platform (PReP) based machines" |
Paul Mackerras | 5be396b | 2005-11-14 17:31:55 +1100 | [diff] [blame^] | 308 | depends on PPC_MULTIPLATFORM && PPC32 && BROKEN |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 309 | select PPC_I8259 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 310 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 311 | default y |
| 312 | |
| 313 | config PPC_MAPLE |
| 314 | depends on PPC_MULTIPLATFORM && PPC64 |
| 315 | bool " Maple 970FX Evaluation Board" |
| 316 | select U3_DART |
| 317 | select MPIC_BROKEN_U3 |
Paul Mackerras | 8ad200d | 2005-11-04 13:28:58 +1100 | [diff] [blame] | 318 | select GENERIC_TBSYNC |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 319 | default n |
| 320 | help |
| 321 | This option enables support for the Maple 970FX Evaluation Board. |
| 322 | For more informations, refer to <http://www.970eval.com> |
| 323 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 324 | config PPC_CELL |
| 325 | bool " Cell Broadband Processor Architecture" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 326 | depends on PPC_MULTIPLATFORM && PPC64 |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 327 | select PPC_RTAS |
Arnd Bergmann | edf03c1 | 2005-10-31 20:08:40 -0500 | [diff] [blame] | 328 | select MMIO_NVRAM |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 329 | |
| 330 | config PPC_OF |
| 331 | bool |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 332 | depends on PPC_MULTIPLATFORM # for now |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 333 | default y |
| 334 | |
| 335 | config XICS |
| 336 | depends on PPC_PSERIES |
| 337 | bool |
| 338 | default y |
| 339 | |
| 340 | config U3_DART |
| 341 | bool |
| 342 | depends on PPC_MULTIPLATFORM && PPC64 |
| 343 | default n |
| 344 | |
| 345 | config MPIC |
Paul Mackerras | bbd0abd | 2005-10-26 21:45:56 +1000 | [diff] [blame] | 346 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 347 | bool |
| 348 | default y |
| 349 | |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 350 | config PPC_RTAS |
| 351 | bool |
| 352 | default n |
| 353 | |
| 354 | config RTAS_ERROR_LOGGING |
| 355 | bool |
| 356 | depends on PPC_RTAS |
| 357 | default n |
| 358 | |
Paul Mackerras | f4fcbbe | 2005-11-03 14:41:19 +1100 | [diff] [blame] | 359 | config RTAS_PROC |
| 360 | bool "Proc interface to RTAS" |
Arnd Bergmann | e9add2e | 2005-10-31 20:08:39 -0500 | [diff] [blame] | 361 | depends on PPC_RTAS |
Paul Mackerras | f4fcbbe | 2005-11-03 14:41:19 +1100 | [diff] [blame] | 362 | default y |
| 363 | |
| 364 | config RTAS_FLASH |
| 365 | tristate "Firmware flash interface" |
| 366 | depends on PPC64 && RTAS_PROC |
Arnd Bergmann | e9add2e | 2005-10-31 20:08:39 -0500 | [diff] [blame] | 367 | |
Arnd Bergmann | edf03c1 | 2005-10-31 20:08:40 -0500 | [diff] [blame] | 368 | config MMIO_NVRAM |
| 369 | bool |
| 370 | default n |
| 371 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 372 | config MPIC_BROKEN_U3 |
| 373 | bool |
| 374 | depends on PPC_MAPLE |
| 375 | default y |
| 376 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 377 | config CELL_IIC |
| 378 | depends on PPC_CELL |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 379 | bool |
| 380 | default y |
| 381 | |
| 382 | config IBMVIO |
| 383 | depends on PPC_PSERIES || PPC_ISERIES |
| 384 | bool |
| 385 | default y |
| 386 | |
Paul Mackerras | 830825d | 2005-10-26 17:16:38 +1000 | [diff] [blame] | 387 | config PPC_MPC106 |
| 388 | bool |
| 389 | default n |
| 390 | |
Paul Mackerras | 8ad200d | 2005-11-04 13:28:58 +1100 | [diff] [blame] | 391 | config GENERIC_TBSYNC |
| 392 | bool |
| 393 | default y if CONFIG_PPC32 && CONFIG_SMP |
| 394 | default n |
| 395 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 396 | source "drivers/cpufreq/Kconfig" |
| 397 | |
| 398 | config CPU_FREQ_PMAC |
| 399 | bool "Support for Apple PowerBooks" |
| 400 | depends on CPU_FREQ && ADB_PMU && PPC32 |
| 401 | select CPU_FREQ_TABLE |
| 402 | help |
| 403 | This adds support for frequency switching on Apple PowerBooks, |
| 404 | this currently includes some models of iBook & Titanium |
| 405 | PowerBook. |
| 406 | |
Benjamin Herrenschmidt | 4350147 | 2005-11-07 14:27:33 +1100 | [diff] [blame] | 407 | config CPU_FREQ_PMAC64 |
| 408 | bool "Support for some Apple G5s" |
| 409 | depends on CPU_FREQ && PMAC_SMU && PPC64 |
| 410 | select CPU_FREQ_TABLE |
| 411 | help |
| 412 | This adds support for frequency switching on Apple iMac G5, |
| 413 | and some of the more recent desktop G5 machines as well. |
| 414 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 415 | config PPC601_SYNC_FIX |
| 416 | bool "Workarounds for PPC601 bugs" |
| 417 | depends on 6xx && (PPC_PREP || PPC_PMAC) |
| 418 | help |
| 419 | Some versions of the PPC601 (the first PowerPC chip) have bugs which |
| 420 | mean that extra synchronization instructions are required near |
| 421 | certain instructions, typically those that make major changes to the |
| 422 | CPU state. These extra instructions reduce performance slightly. |
| 423 | If you say N here, these extra instructions will not be included, |
| 424 | resulting in a kernel which will run faster but may not run at all |
| 425 | on some systems with the PPC601 chip. |
| 426 | |
| 427 | If in doubt, say Y here. |
| 428 | |
| 429 | config TAU |
| 430 | bool "Thermal Management Support" |
| 431 | depends on 6xx |
| 432 | help |
| 433 | G3 and G4 processors have an on-chip temperature sensor called the |
| 434 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die |
| 435 | temperature within 2-4 degrees Celsius. This option shows the current |
| 436 | on-die temperature in /proc/cpuinfo if the cpu supports it. |
| 437 | |
| 438 | Unfortunately, on some chip revisions, this sensor is very inaccurate |
| 439 | and in some cases, does not work at all, so don't assume the cpu |
| 440 | temp is actually what /proc/cpuinfo says it is. |
| 441 | |
| 442 | config TAU_INT |
| 443 | bool "Interrupt driven TAU driver (DANGEROUS)" |
| 444 | depends on TAU |
| 445 | ---help--- |
| 446 | The TAU supports an interrupt driven mode which causes an interrupt |
| 447 | whenever the temperature goes out of range. This is the fastest way |
| 448 | to get notified the temp has exceeded a range. With this option off, |
| 449 | a timer is used to re-check the temperature periodically. |
| 450 | |
| 451 | However, on some cpus it appears that the TAU interrupt hardware |
| 452 | is buggy and can cause a situation which would lead unexplained hard |
| 453 | lockups. |
| 454 | |
| 455 | Unless you are extending the TAU driver, or enjoy kernel/hardware |
| 456 | debugging, leave this option off. |
| 457 | |
| 458 | config TAU_AVERAGE |
| 459 | bool "Average high and low temp" |
| 460 | depends on TAU |
| 461 | ---help--- |
| 462 | The TAU hardware can compare the temperature to an upper and lower |
| 463 | bound. The default behavior is to show both the upper and lower |
| 464 | bound in /proc/cpuinfo. If the range is large, the temperature is |
| 465 | either changing a lot, or the TAU hardware is broken (likely on some |
| 466 | G4's). If the range is small (around 4 degrees), the temperature is |
| 467 | relatively stable. If you say Y here, a single temperature value, |
| 468 | halfway between the upper and lower bounds, will be reported in |
| 469 | /proc/cpuinfo. |
| 470 | |
| 471 | If in doubt, say N here. |
| 472 | endmenu |
| 473 | |
| 474 | source arch/powerpc/platforms/embedded6xx/Kconfig |
| 475 | source arch/powerpc/platforms/4xx/Kconfig |
| 476 | source arch/powerpc/platforms/85xx/Kconfig |
| 477 | source arch/powerpc/platforms/8xx/Kconfig |
| 478 | |
| 479 | menu "Kernel options" |
| 480 | |
| 481 | config HIGHMEM |
| 482 | bool "High memory support" |
| 483 | depends on PPC32 |
| 484 | |
| 485 | source kernel/Kconfig.hz |
| 486 | source kernel/Kconfig.preempt |
| 487 | source "fs/Kconfig.binfmt" |
| 488 | |
| 489 | # We optimistically allocate largepages from the VM, so make the limit |
| 490 | # large enough (16MB). This badly named config option is actually |
| 491 | # max order + 1 |
| 492 | config FORCE_MAX_ZONEORDER |
| 493 | int |
| 494 | depends on PPC64 |
Mike Kravetz | 0286486 | 2005-11-07 13:48:59 -0800 | [diff] [blame] | 495 | default "9" if PPC_64K_PAGES |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 496 | default "13" |
| 497 | |
| 498 | config MATH_EMULATION |
| 499 | bool "Math emulation" |
| 500 | depends on 4xx || 8xx || E200 || E500 |
| 501 | ---help--- |
| 502 | Some PowerPC chips designed for embedded applications do not have |
| 503 | a floating-point unit and therefore do not implement the |
| 504 | floating-point instructions in the PowerPC instruction set. If you |
| 505 | say Y here, the kernel will include code to emulate a floating-point |
| 506 | unit, which will allow programs that use floating-point |
| 507 | instructions to run. |
| 508 | |
| 509 | config IOMMU_VMERGE |
| 510 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" |
| 511 | depends on EXPERIMENTAL && PPC64 |
| 512 | default n |
| 513 | help |
| 514 | Cause IO segments sent to a device for DMA to be merged virtually |
| 515 | by the IOMMU when they happen to have been allocated contiguously. |
| 516 | This doesn't add pressure to the IOMMU allocator. However, some |
| 517 | drivers don't support getting large merged segments coming back |
| 518 | from *_map_sg(). Say Y if you know the drivers you are using are |
| 519 | properly handling this case. |
| 520 | |
| 521 | config HOTPLUG_CPU |
| 522 | bool "Support for enabling/disabling CPUs" |
| 523 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) |
| 524 | ---help--- |
| 525 | Say Y here to be able to disable and re-enable individual |
| 526 | CPUs at runtime on SMP machines. |
| 527 | |
| 528 | Say N if you are unsure. |
| 529 | |
| 530 | config KEXEC |
| 531 | bool "kexec system call (EXPERIMENTAL)" |
| 532 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL |
| 533 | help |
| 534 | kexec is a system call that implements the ability to shutdown your |
| 535 | current kernel, and to start another kernel. It is like a reboot |
| 536 | but it is indepedent of the system firmware. And like a reboot |
| 537 | you can start any kernel with it, not just Linux. |
| 538 | |
| 539 | The name comes from the similiarity to the exec system call. |
| 540 | |
| 541 | It is an ongoing process to be certain the hardware in a machine |
| 542 | is properly shutdown, so do not be surprised if this code does not |
| 543 | initially work for you. It may help to enable device hotplugging |
| 544 | support. As of this writing the exact hardware interface is |
| 545 | strongly in flux, so no good recommendation can be made. |
| 546 | |
| 547 | config EMBEDDEDBOOT |
| 548 | bool |
| 549 | depends on 8xx || 8260 |
| 550 | default y |
| 551 | |
| 552 | config PC_KEYBOARD |
| 553 | bool "PC PS/2 style Keyboard" |
| 554 | depends on 4xx || CPM2 |
| 555 | |
| 556 | config PPCBUG_NVRAM |
| 557 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC |
| 558 | default y if PPC_PREP |
| 559 | |
| 560 | config IRQ_ALL_CPUS |
| 561 | bool "Distribute interrupts on all CPUs by default" |
| 562 | depends on SMP && !MV64360 |
| 563 | help |
| 564 | This option gives the kernel permission to distribute IRQs across |
| 565 | multiple CPUs. Saying N here will route all IRQs to the first |
| 566 | CPU. Generally saying Y is safe, although some problems have been |
| 567 | reported with SMP Power Macintoshes with this option enabled. |
| 568 | |
| 569 | source "arch/powerpc/platforms/pseries/Kconfig" |
| 570 | |
Andy Whitcroft | ffa27b6 | 2005-10-28 17:46:58 -0700 | [diff] [blame] | 571 | config NUMA |
| 572 | bool "NUMA support" |
| 573 | depends on PPC64 |
| 574 | default y if SMP && PPC_PSERIES |
| 575 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 576 | config ARCH_SELECT_MEMORY_MODEL |
| 577 | def_bool y |
| 578 | depends on PPC64 |
| 579 | |
| 580 | config ARCH_FLATMEM_ENABLE |
| 581 | def_bool y |
| 582 | depends on PPC64 && !NUMA |
| 583 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 584 | config ARCH_SPARSEMEM_ENABLE |
| 585 | def_bool y |
Anton Blanchard | 45fb6ce | 2005-11-11 14:22:35 +1100 | [diff] [blame] | 586 | |
| 587 | config ARCH_SPARSEMEM_DEFAULT |
| 588 | def_bool y |
| 589 | depends on SMP && PPC_PSERIES |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 590 | |
| 591 | source "mm/Kconfig" |
| 592 | |
| 593 | config HAVE_ARCH_EARLY_PFN_TO_NID |
| 594 | def_bool y |
| 595 | depends on NEED_MULTIPLE_NODES |
| 596 | |
Mike Kravetz | 7e9191d | 2005-11-07 09:39:48 -0800 | [diff] [blame] | 597 | config ARCH_MEMORY_PROBE |
| 598 | def_bool y |
| 599 | depends on MEMORY_HOTPLUG |
| 600 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 601 | # Some NUMA nodes have memory ranges that span |
| 602 | # other nodes. Even though a pfn is valid and |
| 603 | # between a node's start and end pfns, it may not |
| 604 | # reside on that node. |
| 605 | # |
| 606 | # This is a relatively temporary hack that should |
| 607 | # be able to go away when sparsemem is fully in |
| 608 | # place |
| 609 | |
| 610 | config NODES_SPAN_OTHER_NODES |
| 611 | def_bool y |
| 612 | depends on NEED_MULTIPLE_NODES |
| 613 | |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 614 | config PPC_64K_PAGES |
| 615 | bool "64k page size" |
Benjamin Herrenschmidt | 863c84b | 2005-11-07 00:57:58 -0800 | [diff] [blame] | 616 | depends on PPC64 |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 617 | help |
| 618 | This option changes the kernel logical page size to 64k. On machines |
| 619 | without processor support for 64k pages, the kernel will simulate |
| 620 | them by loading each individual 4k page on demand transparently, |
| 621 | while on hardware with such support, it will be used to map |
| 622 | normal application pages. |
| 623 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 624 | config SCHED_SMT |
| 625 | bool "SMT (Hyperthreading) scheduler support" |
| 626 | depends on PPC64 && SMP |
| 627 | default off |
| 628 | help |
| 629 | SMT scheduler support improves the CPU scheduler's decision making |
| 630 | when dealing with POWER5 cpus at a cost of slightly increased |
| 631 | overhead in some places. If unsure say N here. |
| 632 | |
| 633 | config PROC_DEVICETREE |
Paul Mackerras | 5f29675 | 2005-10-17 20:14:59 +1000 | [diff] [blame] | 634 | bool "Support for device tree in /proc" |
| 635 | depends on PROC_FS |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 636 | help |
| 637 | This option adds a device-tree directory under /proc which contains |
| 638 | an image of the device tree that the kernel copies from Open |
Paul Mackerras | 5f29675 | 2005-10-17 20:14:59 +1000 | [diff] [blame] | 639 | Firmware or other boot firmware. If unsure, say Y here. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 640 | |
| 641 | source "arch/powerpc/platforms/prep/Kconfig" |
| 642 | |
| 643 | config CMDLINE_BOOL |
| 644 | bool "Default bootloader kernel arguments" |
| 645 | depends on !PPC_ISERIES |
| 646 | |
| 647 | config CMDLINE |
| 648 | string "Initial kernel command string" |
| 649 | depends on CMDLINE_BOOL |
| 650 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" |
| 651 | help |
| 652 | On some platforms, there is currently no way for the boot loader to |
| 653 | pass arguments to the kernel. For these platforms, you can supply |
| 654 | some command-line options at build time by entering them here. In |
| 655 | most cases you will need to specify the root device here. |
| 656 | |
| 657 | if !44x || BROKEN |
| 658 | source kernel/power/Kconfig |
| 659 | endif |
| 660 | |
| 661 | config SECCOMP |
| 662 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 663 | depends on PROC_FS |
| 664 | default y |
| 665 | help |
| 666 | This kernel feature is useful for number crunching applications |
| 667 | that may need to compute untrusted bytecode during their |
| 668 | execution. By using pipes or other transports made available to |
| 669 | the process as file descriptors supporting the read/write |
| 670 | syscalls, it's possible to isolate those applications in |
| 671 | their own address space using seccomp. Once seccomp is |
| 672 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 673 | and the task is only allowed to execute a few safe syscalls |
| 674 | defined by each seccomp mode. |
| 675 | |
| 676 | If unsure, say Y. Only embedded should say N here. |
| 677 | |
| 678 | endmenu |
| 679 | |
| 680 | config ISA_DMA_API |
| 681 | bool |
| 682 | default y |
| 683 | |
| 684 | menu "Bus options" |
| 685 | |
| 686 | config ISA |
| 687 | bool "Support for ISA-bus hardware" |
| 688 | depends on PPC_PREP || PPC_CHRP |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 689 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 690 | help |
| 691 | Find out whether you have ISA slots on your motherboard. ISA is the |
| 692 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| 693 | inside your box. If you have an Apple machine, say N here; if you |
| 694 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If |
| 695 | you have an embedded board, consult your board documentation. |
| 696 | |
| 697 | config GENERIC_ISA_DMA |
| 698 | bool |
| 699 | depends on PPC64 || POWER4 || 6xx && !CPM2 |
| 700 | default y |
| 701 | |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 702 | config PPC_I8259 |
| 703 | bool |
| 704 | default y if 85xx |
| 705 | default n |
| 706 | |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 707 | config PPC_INDIRECT_PCI |
| 708 | bool |
| 709 | depends on PCI |
| 710 | default y if 40x || 44x || 85xx || 83xx |
| 711 | default n |
| 712 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 713 | config EISA |
| 714 | bool |
| 715 | |
| 716 | config SBUS |
| 717 | bool |
| 718 | |
| 719 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
| 720 | config MCA |
| 721 | bool |
| 722 | |
| 723 | config PCI |
| 724 | bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) |
| 725 | default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx |
| 726 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
| 727 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
| 728 | help |
| 729 | Find out whether your system includes a PCI bus. PCI is the name of |
| 730 | a bus system, i.e. the way the CPU talks to the other stuff inside |
| 731 | your box. If you say Y here, the kernel will include drivers and |
| 732 | infrastructure code to support PCI bus devices. |
| 733 | |
| 734 | config PCI_DOMAINS |
| 735 | bool |
| 736 | default PCI |
| 737 | |
| 738 | config MPC83xx_PCI2 |
| 739 | bool " Supprt for 2nd PCI host controller" |
| 740 | depends on PCI && MPC834x |
| 741 | default y if MPC834x_SYS |
| 742 | |
| 743 | config PCI_QSPAN |
| 744 | bool "QSpan PCI" |
| 745 | depends on !4xx && !CPM2 && 8xx |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 746 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 747 | help |
| 748 | Say Y here if you have a system based on a Motorola 8xx-series |
| 749 | embedded processor with a QSPAN PCI interface, otherwise say N. |
| 750 | |
| 751 | config PCI_8260 |
| 752 | bool |
| 753 | depends on PCI && 8260 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 754 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 755 | default y |
| 756 | |
| 757 | config 8260_PCI9 |
| 758 | bool " Enable workaround for MPC826x erratum PCI 9" |
| 759 | depends on PCI_8260 && !ADS8272 |
| 760 | default y |
| 761 | |
| 762 | choice |
| 763 | prompt " IDMA channel for PCI 9 workaround" |
| 764 | depends on 8260_PCI9 |
| 765 | |
| 766 | config 8260_PCI9_IDMA1 |
| 767 | bool "IDMA1" |
| 768 | |
| 769 | config 8260_PCI9_IDMA2 |
| 770 | bool "IDMA2" |
| 771 | |
| 772 | config 8260_PCI9_IDMA3 |
| 773 | bool "IDMA3" |
| 774 | |
| 775 | config 8260_PCI9_IDMA4 |
| 776 | bool "IDMA4" |
| 777 | |
| 778 | endchoice |
| 779 | |
| 780 | source "drivers/pci/Kconfig" |
| 781 | |
| 782 | source "drivers/pcmcia/Kconfig" |
| 783 | |
| 784 | source "drivers/pci/hotplug/Kconfig" |
| 785 | |
| 786 | endmenu |
| 787 | |
| 788 | menu "Advanced setup" |
| 789 | depends on PPC32 |
| 790 | |
| 791 | config ADVANCED_OPTIONS |
| 792 | bool "Prompt for advanced kernel configuration options" |
| 793 | help |
| 794 | This option will enable prompting for a variety of advanced kernel |
| 795 | configuration options. These options can cause the kernel to not |
| 796 | work if they are set incorrectly, but can be used to optimize certain |
| 797 | aspects of kernel memory management. |
| 798 | |
| 799 | Unless you know what you are doing, say N here. |
| 800 | |
| 801 | comment "Default settings for advanced configuration options are used" |
| 802 | depends on !ADVANCED_OPTIONS |
| 803 | |
| 804 | config HIGHMEM_START_BOOL |
| 805 | bool "Set high memory pool address" |
| 806 | depends on ADVANCED_OPTIONS && HIGHMEM |
| 807 | help |
| 808 | This option allows you to set the base address of the kernel virtual |
| 809 | area used to map high memory pages. This can be useful in |
| 810 | optimizing the layout of kernel virtual memory. |
| 811 | |
| 812 | Say N here unless you know what you are doing. |
| 813 | |
| 814 | config HIGHMEM_START |
| 815 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL |
| 816 | default "0xfe000000" |
| 817 | |
| 818 | config LOWMEM_SIZE_BOOL |
| 819 | bool "Set maximum low memory" |
| 820 | depends on ADVANCED_OPTIONS |
| 821 | help |
| 822 | This option allows you to set the maximum amount of memory which |
| 823 | will be used as "low memory", that is, memory which the kernel can |
| 824 | access directly, without having to set up a kernel virtual mapping. |
| 825 | This can be useful in optimizing the layout of kernel virtual |
| 826 | memory. |
| 827 | |
| 828 | Say N here unless you know what you are doing. |
| 829 | |
| 830 | config LOWMEM_SIZE |
| 831 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
| 832 | default "0x30000000" |
| 833 | |
| 834 | config KERNEL_START_BOOL |
| 835 | bool "Set custom kernel base address" |
| 836 | depends on ADVANCED_OPTIONS |
| 837 | help |
| 838 | This option allows you to set the kernel virtual address at which |
| 839 | the kernel will map low memory (the kernel image will be linked at |
| 840 | this address). This can be useful in optimizing the virtual memory |
| 841 | layout of the system. |
| 842 | |
| 843 | Say N here unless you know what you are doing. |
| 844 | |
| 845 | config KERNEL_START |
| 846 | hex "Virtual address of kernel base" if KERNEL_START_BOOL |
| 847 | default "0xc0000000" |
| 848 | |
| 849 | config TASK_SIZE_BOOL |
| 850 | bool "Set custom user task size" |
| 851 | depends on ADVANCED_OPTIONS |
| 852 | help |
| 853 | This option allows you to set the amount of virtual address space |
| 854 | allocated to user tasks. This can be useful in optimizing the |
| 855 | virtual memory layout of the system. |
| 856 | |
| 857 | Say N here unless you know what you are doing. |
| 858 | |
| 859 | config TASK_SIZE |
| 860 | hex "Size of user task space" if TASK_SIZE_BOOL |
| 861 | default "0x80000000" |
| 862 | |
| 863 | config CONSISTENT_START_BOOL |
| 864 | bool "Set custom consistent memory pool address" |
| 865 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 866 | help |
| 867 | This option allows you to set the base virtual address |
| 868 | of the the consistent memory pool. This pool of virtual |
| 869 | memory is used to make consistent memory allocations. |
| 870 | |
| 871 | config CONSISTENT_START |
| 872 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL |
| 873 | default "0xff100000" if NOT_COHERENT_CACHE |
| 874 | |
| 875 | config CONSISTENT_SIZE_BOOL |
| 876 | bool "Set custom consistent memory pool size" |
| 877 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 878 | help |
| 879 | This option allows you to set the size of the the |
| 880 | consistent memory pool. This pool of virtual memory |
| 881 | is used to make consistent memory allocations. |
| 882 | |
| 883 | config CONSISTENT_SIZE |
| 884 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL |
| 885 | default "0x00200000" if NOT_COHERENT_CACHE |
| 886 | |
| 887 | config BOOT_LOAD_BOOL |
| 888 | bool "Set the boot link/load address" |
| 889 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM |
| 890 | help |
| 891 | This option allows you to set the initial load address of the zImage |
| 892 | or zImage.initrd file. This can be useful if you are on a board |
| 893 | which has a small amount of memory. |
| 894 | |
| 895 | Say N here unless you know what you are doing. |
| 896 | |
| 897 | config BOOT_LOAD |
| 898 | hex "Link/load address for booting" if BOOT_LOAD_BOOL |
| 899 | default "0x00400000" if 40x || 8xx || 8260 |
| 900 | default "0x01000000" if 44x |
| 901 | default "0x00800000" |
| 902 | |
| 903 | config PIN_TLB |
| 904 | bool "Pinned Kernel TLBs (860 ONLY)" |
| 905 | depends on ADVANCED_OPTIONS && 8xx |
| 906 | endmenu |
| 907 | |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 908 | if PPC64 |
| 909 | config KERNEL_START |
| 910 | hex |
Stephen Rothwell | eeb2d21 | 2005-09-30 17:24:15 +1000 | [diff] [blame] | 911 | default "0xc000000000000000" |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 912 | endif |
| 913 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 914 | source "net/Kconfig" |
| 915 | |
| 916 | source "drivers/Kconfig" |
| 917 | |
| 918 | source "fs/Kconfig" |
| 919 | |
| 920 | # XXX source "arch/ppc/8xx_io/Kconfig" |
| 921 | |
| 922 | # XXX source "arch/ppc/8260_io/Kconfig" |
| 923 | |
| 924 | source "arch/powerpc/platforms/iseries/Kconfig" |
| 925 | |
| 926 | source "lib/Kconfig" |
| 927 | |
Prasanna S Panchamukhi | cd6b076 | 2005-11-07 00:59:14 -0800 | [diff] [blame] | 928 | menu "Instrumentation Support" |
| 929 | depends on EXPERIMENTAL |
| 930 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 931 | source "arch/powerpc/oprofile/Kconfig" |
| 932 | |
Prasanna S Panchamukhi | cd6b076 | 2005-11-07 00:59:14 -0800 | [diff] [blame] | 933 | config KPROBES |
| 934 | bool "Kprobes (EXPERIMENTAL)" |
Paul Mackerras | 7568cb4 | 2005-11-14 17:30:17 +1100 | [diff] [blame] | 935 | depends on PPC64 |
Prasanna S Panchamukhi | cd6b076 | 2005-11-07 00:59:14 -0800 | [diff] [blame] | 936 | help |
| 937 | Kprobes allows you to trap at almost any kernel address and |
| 938 | execute a callback function. register_kprobe() establishes |
| 939 | a probepoint and specifies the callback. Kprobes is useful |
| 940 | for kernel debugging, non-intrusive instrumentation and testing. |
| 941 | If in doubt, say "N". |
| 942 | endmenu |
| 943 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 944 | source "arch/powerpc/Kconfig.debug" |
| 945 | |
| 946 | source "security/Kconfig" |
| 947 | |
| 948 | config KEYS_COMPAT |
| 949 | bool |
| 950 | depends on COMPAT && KEYS |
| 951 | default y |
| 952 | |
| 953 | source "crypto/Kconfig" |