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" |
| 264 | depends on PPC32 |
| 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 | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 289 | default y |
| 290 | |
| 291 | config PPC_PMAC |
| 292 | bool " Apple PowerMac based machines" |
| 293 | depends on PPC_MULTIPLATFORM |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 294 | select PPC_INDIRECT_PCI if PPC32 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 295 | default y |
| 296 | |
| 297 | config PPC_PMAC64 |
| 298 | bool |
| 299 | depends on PPC_PMAC && POWER4 |
Paul Mackerras | 35499c0 | 2005-10-22 16:02:39 +1000 | [diff] [blame] | 300 | select U3_DART |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 301 | default y |
| 302 | |
| 303 | config PPC_PREP |
| 304 | bool " PowerPC Reference Platform (PReP) based machines" |
| 305 | depends on PPC_MULTIPLATFORM && PPC32 |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 306 | select PPC_I8259 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 307 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 308 | default y |
| 309 | |
| 310 | config PPC_MAPLE |
| 311 | depends on PPC_MULTIPLATFORM && PPC64 |
| 312 | bool " Maple 970FX Evaluation Board" |
| 313 | select U3_DART |
| 314 | select MPIC_BROKEN_U3 |
| 315 | default n |
| 316 | help |
| 317 | This option enables support for the Maple 970FX Evaluation Board. |
| 318 | For more informations, refer to <http://www.970eval.com> |
| 319 | |
| 320 | config PPC_BPA |
| 321 | bool " Broadband Processor Architecture" |
| 322 | depends on PPC_MULTIPLATFORM && PPC64 |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 323 | select PPC_RTAS |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 324 | |
| 325 | config PPC_OF |
| 326 | bool |
Paul Mackerras | 187a006 | 2005-10-06 12:49:05 +1000 | [diff] [blame] | 327 | depends on PPC_MULTIPLATFORM # for now |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 328 | default y |
| 329 | |
| 330 | config XICS |
| 331 | depends on PPC_PSERIES |
| 332 | bool |
| 333 | default y |
| 334 | |
| 335 | config U3_DART |
| 336 | bool |
| 337 | depends on PPC_MULTIPLATFORM && PPC64 |
| 338 | default n |
| 339 | |
| 340 | config MPIC |
| 341 | depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE |
| 342 | bool |
| 343 | default y |
| 344 | |
Paul Mackerras | 033ef33 | 2005-10-26 17:05:24 +1000 | [diff] [blame] | 345 | config PPC_RTAS |
| 346 | bool |
| 347 | default n |
| 348 | |
| 349 | config RTAS_ERROR_LOGGING |
| 350 | bool |
| 351 | depends on PPC_RTAS |
| 352 | default n |
| 353 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 354 | config MPIC_BROKEN_U3 |
| 355 | bool |
| 356 | depends on PPC_MAPLE |
| 357 | default y |
| 358 | |
| 359 | config BPA_IIC |
| 360 | depends on PPC_BPA |
| 361 | bool |
| 362 | default y |
| 363 | |
| 364 | config IBMVIO |
| 365 | depends on PPC_PSERIES || PPC_ISERIES |
| 366 | bool |
| 367 | default y |
| 368 | |
| 369 | source "drivers/cpufreq/Kconfig" |
| 370 | |
| 371 | config CPU_FREQ_PMAC |
| 372 | bool "Support for Apple PowerBooks" |
| 373 | depends on CPU_FREQ && ADB_PMU && PPC32 |
| 374 | select CPU_FREQ_TABLE |
| 375 | help |
| 376 | This adds support for frequency switching on Apple PowerBooks, |
| 377 | this currently includes some models of iBook & Titanium |
| 378 | PowerBook. |
| 379 | |
| 380 | config PPC601_SYNC_FIX |
| 381 | bool "Workarounds for PPC601 bugs" |
| 382 | depends on 6xx && (PPC_PREP || PPC_PMAC) |
| 383 | help |
| 384 | Some versions of the PPC601 (the first PowerPC chip) have bugs which |
| 385 | mean that extra synchronization instructions are required near |
| 386 | certain instructions, typically those that make major changes to the |
| 387 | CPU state. These extra instructions reduce performance slightly. |
| 388 | If you say N here, these extra instructions will not be included, |
| 389 | resulting in a kernel which will run faster but may not run at all |
| 390 | on some systems with the PPC601 chip. |
| 391 | |
| 392 | If in doubt, say Y here. |
| 393 | |
| 394 | config TAU |
| 395 | bool "Thermal Management Support" |
| 396 | depends on 6xx |
| 397 | help |
| 398 | G3 and G4 processors have an on-chip temperature sensor called the |
| 399 | 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die |
| 400 | temperature within 2-4 degrees Celsius. This option shows the current |
| 401 | on-die temperature in /proc/cpuinfo if the cpu supports it. |
| 402 | |
| 403 | Unfortunately, on some chip revisions, this sensor is very inaccurate |
| 404 | and in some cases, does not work at all, so don't assume the cpu |
| 405 | temp is actually what /proc/cpuinfo says it is. |
| 406 | |
| 407 | config TAU_INT |
| 408 | bool "Interrupt driven TAU driver (DANGEROUS)" |
| 409 | depends on TAU |
| 410 | ---help--- |
| 411 | The TAU supports an interrupt driven mode which causes an interrupt |
| 412 | whenever the temperature goes out of range. This is the fastest way |
| 413 | to get notified the temp has exceeded a range. With this option off, |
| 414 | a timer is used to re-check the temperature periodically. |
| 415 | |
| 416 | However, on some cpus it appears that the TAU interrupt hardware |
| 417 | is buggy and can cause a situation which would lead unexplained hard |
| 418 | lockups. |
| 419 | |
| 420 | Unless you are extending the TAU driver, or enjoy kernel/hardware |
| 421 | debugging, leave this option off. |
| 422 | |
| 423 | config TAU_AVERAGE |
| 424 | bool "Average high and low temp" |
| 425 | depends on TAU |
| 426 | ---help--- |
| 427 | The TAU hardware can compare the temperature to an upper and lower |
| 428 | bound. The default behavior is to show both the upper and lower |
| 429 | bound in /proc/cpuinfo. If the range is large, the temperature is |
| 430 | either changing a lot, or the TAU hardware is broken (likely on some |
| 431 | G4's). If the range is small (around 4 degrees), the temperature is |
| 432 | relatively stable. If you say Y here, a single temperature value, |
| 433 | halfway between the upper and lower bounds, will be reported in |
| 434 | /proc/cpuinfo. |
| 435 | |
| 436 | If in doubt, say N here. |
| 437 | endmenu |
| 438 | |
| 439 | source arch/powerpc/platforms/embedded6xx/Kconfig |
| 440 | source arch/powerpc/platforms/4xx/Kconfig |
| 441 | source arch/powerpc/platforms/85xx/Kconfig |
| 442 | source arch/powerpc/platforms/8xx/Kconfig |
| 443 | |
| 444 | menu "Kernel options" |
| 445 | |
| 446 | config HIGHMEM |
| 447 | bool "High memory support" |
| 448 | depends on PPC32 |
| 449 | |
| 450 | source kernel/Kconfig.hz |
| 451 | source kernel/Kconfig.preempt |
| 452 | source "fs/Kconfig.binfmt" |
| 453 | |
| 454 | # We optimistically allocate largepages from the VM, so make the limit |
| 455 | # large enough (16MB). This badly named config option is actually |
| 456 | # max order + 1 |
| 457 | config FORCE_MAX_ZONEORDER |
| 458 | int |
| 459 | depends on PPC64 |
| 460 | default "13" |
| 461 | |
| 462 | config MATH_EMULATION |
| 463 | bool "Math emulation" |
| 464 | depends on 4xx || 8xx || E200 || E500 |
| 465 | ---help--- |
| 466 | Some PowerPC chips designed for embedded applications do not have |
| 467 | a floating-point unit and therefore do not implement the |
| 468 | floating-point instructions in the PowerPC instruction set. If you |
| 469 | say Y here, the kernel will include code to emulate a floating-point |
| 470 | unit, which will allow programs that use floating-point |
| 471 | instructions to run. |
| 472 | |
| 473 | config IOMMU_VMERGE |
| 474 | bool "Enable IOMMU virtual merging (EXPERIMENTAL)" |
| 475 | depends on EXPERIMENTAL && PPC64 |
| 476 | default n |
| 477 | help |
| 478 | Cause IO segments sent to a device for DMA to be merged virtually |
| 479 | by the IOMMU when they happen to have been allocated contiguously. |
| 480 | This doesn't add pressure to the IOMMU allocator. However, some |
| 481 | drivers don't support getting large merged segments coming back |
| 482 | from *_map_sg(). Say Y if you know the drivers you are using are |
| 483 | properly handling this case. |
| 484 | |
| 485 | config HOTPLUG_CPU |
| 486 | bool "Support for enabling/disabling CPUs" |
| 487 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) |
| 488 | ---help--- |
| 489 | Say Y here to be able to disable and re-enable individual |
| 490 | CPUs at runtime on SMP machines. |
| 491 | |
| 492 | Say N if you are unsure. |
| 493 | |
| 494 | config KEXEC |
| 495 | bool "kexec system call (EXPERIMENTAL)" |
| 496 | depends on PPC_MULTIPLATFORM && EXPERIMENTAL |
| 497 | help |
| 498 | kexec is a system call that implements the ability to shutdown your |
| 499 | current kernel, and to start another kernel. It is like a reboot |
| 500 | but it is indepedent of the system firmware. And like a reboot |
| 501 | you can start any kernel with it, not just Linux. |
| 502 | |
| 503 | The name comes from the similiarity to the exec system call. |
| 504 | |
| 505 | It is an ongoing process to be certain the hardware in a machine |
| 506 | is properly shutdown, so do not be surprised if this code does not |
| 507 | initially work for you. It may help to enable device hotplugging |
| 508 | support. As of this writing the exact hardware interface is |
| 509 | strongly in flux, so no good recommendation can be made. |
| 510 | |
| 511 | config EMBEDDEDBOOT |
| 512 | bool |
| 513 | depends on 8xx || 8260 |
| 514 | default y |
| 515 | |
| 516 | config PC_KEYBOARD |
| 517 | bool "PC PS/2 style Keyboard" |
| 518 | depends on 4xx || CPM2 |
| 519 | |
| 520 | config PPCBUG_NVRAM |
| 521 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC |
| 522 | default y if PPC_PREP |
| 523 | |
| 524 | config IRQ_ALL_CPUS |
| 525 | bool "Distribute interrupts on all CPUs by default" |
| 526 | depends on SMP && !MV64360 |
| 527 | help |
| 528 | This option gives the kernel permission to distribute IRQs across |
| 529 | multiple CPUs. Saying N here will route all IRQs to the first |
| 530 | CPU. Generally saying Y is safe, although some problems have been |
| 531 | reported with SMP Power Macintoshes with this option enabled. |
| 532 | |
| 533 | source "arch/powerpc/platforms/pseries/Kconfig" |
| 534 | |
| 535 | config ARCH_SELECT_MEMORY_MODEL |
| 536 | def_bool y |
| 537 | depends on PPC64 |
| 538 | |
| 539 | config ARCH_FLATMEM_ENABLE |
| 540 | def_bool y |
| 541 | depends on PPC64 && !NUMA |
| 542 | |
| 543 | config ARCH_DISCONTIGMEM_ENABLE |
| 544 | def_bool y |
| 545 | depends on SMP && PPC_PSERIES |
| 546 | |
| 547 | config ARCH_DISCONTIGMEM_DEFAULT |
| 548 | def_bool y |
| 549 | depends on ARCH_DISCONTIGMEM_ENABLE |
| 550 | |
| 551 | config ARCH_FLATMEM_ENABLE |
| 552 | def_bool y |
| 553 | depends on PPC64 |
| 554 | |
| 555 | config ARCH_SPARSEMEM_ENABLE |
| 556 | def_bool y |
| 557 | depends on ARCH_DISCONTIGMEM_ENABLE |
| 558 | |
| 559 | source "mm/Kconfig" |
| 560 | |
| 561 | config HAVE_ARCH_EARLY_PFN_TO_NID |
| 562 | def_bool y |
| 563 | depends on NEED_MULTIPLE_NODES |
| 564 | |
| 565 | # Some NUMA nodes have memory ranges that span |
| 566 | # other nodes. Even though a pfn is valid and |
| 567 | # between a node's start and end pfns, it may not |
| 568 | # reside on that node. |
| 569 | # |
| 570 | # This is a relatively temporary hack that should |
| 571 | # be able to go away when sparsemem is fully in |
| 572 | # place |
| 573 | |
| 574 | config NODES_SPAN_OTHER_NODES |
| 575 | def_bool y |
| 576 | depends on NEED_MULTIPLE_NODES |
| 577 | |
| 578 | config NUMA |
| 579 | bool "NUMA support" |
| 580 | default y if DISCONTIGMEM || SPARSEMEM |
| 581 | |
| 582 | config SCHED_SMT |
| 583 | bool "SMT (Hyperthreading) scheduler support" |
| 584 | depends on PPC64 && SMP |
| 585 | default off |
| 586 | help |
| 587 | SMT scheduler support improves the CPU scheduler's decision making |
| 588 | when dealing with POWER5 cpus at a cost of slightly increased |
| 589 | overhead in some places. If unsure say N here. |
| 590 | |
| 591 | config PROC_DEVICETREE |
Paul Mackerras | 5f29675 | 2005-10-17 20:14:59 +1000 | [diff] [blame] | 592 | bool "Support for device tree in /proc" |
| 593 | depends on PROC_FS |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 594 | help |
| 595 | This option adds a device-tree directory under /proc which contains |
| 596 | an image of the device tree that the kernel copies from Open |
Paul Mackerras | 5f29675 | 2005-10-17 20:14:59 +1000 | [diff] [blame] | 597 | Firmware or other boot firmware. If unsure, say Y here. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 598 | |
| 599 | source "arch/powerpc/platforms/prep/Kconfig" |
| 600 | |
| 601 | config CMDLINE_BOOL |
| 602 | bool "Default bootloader kernel arguments" |
| 603 | depends on !PPC_ISERIES |
| 604 | |
| 605 | config CMDLINE |
| 606 | string "Initial kernel command string" |
| 607 | depends on CMDLINE_BOOL |
| 608 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" |
| 609 | help |
| 610 | On some platforms, there is currently no way for the boot loader to |
| 611 | pass arguments to the kernel. For these platforms, you can supply |
| 612 | some command-line options at build time by entering them here. In |
| 613 | most cases you will need to specify the root device here. |
| 614 | |
| 615 | if !44x || BROKEN |
| 616 | source kernel/power/Kconfig |
| 617 | endif |
| 618 | |
| 619 | config SECCOMP |
| 620 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 621 | depends on PROC_FS |
| 622 | default y |
| 623 | help |
| 624 | This kernel feature is useful for number crunching applications |
| 625 | that may need to compute untrusted bytecode during their |
| 626 | execution. By using pipes or other transports made available to |
| 627 | the process as file descriptors supporting the read/write |
| 628 | syscalls, it's possible to isolate those applications in |
| 629 | their own address space using seccomp. Once seccomp is |
| 630 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 631 | and the task is only allowed to execute a few safe syscalls |
| 632 | defined by each seccomp mode. |
| 633 | |
| 634 | If unsure, say Y. Only embedded should say N here. |
| 635 | |
| 636 | endmenu |
| 637 | |
| 638 | config ISA_DMA_API |
| 639 | bool |
| 640 | default y |
| 641 | |
| 642 | menu "Bus options" |
| 643 | |
| 644 | config ISA |
| 645 | bool "Support for ISA-bus hardware" |
| 646 | depends on PPC_PREP || PPC_CHRP |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 647 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 648 | help |
| 649 | Find out whether you have ISA slots on your motherboard. ISA is the |
| 650 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| 651 | inside your box. If you have an Apple machine, say N here; if you |
| 652 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If |
| 653 | you have an embedded board, consult your board documentation. |
| 654 | |
| 655 | config GENERIC_ISA_DMA |
| 656 | bool |
| 657 | depends on PPC64 || POWER4 || 6xx && !CPM2 |
| 658 | default y |
| 659 | |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 660 | config PPC_I8259 |
| 661 | bool |
| 662 | default y if 85xx |
| 663 | default n |
| 664 | |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 665 | config PPC_INDIRECT_PCI |
| 666 | bool |
| 667 | depends on PCI |
| 668 | default y if 40x || 44x || 85xx || 83xx |
| 669 | default n |
| 670 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 671 | config EISA |
| 672 | bool |
| 673 | |
| 674 | config SBUS |
| 675 | bool |
| 676 | |
| 677 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
| 678 | config MCA |
| 679 | bool |
| 680 | |
| 681 | config PCI |
| 682 | bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) |
| 683 | default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx |
| 684 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS |
| 685 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
| 686 | help |
| 687 | Find out whether your system includes a PCI bus. PCI is the name of |
| 688 | a bus system, i.e. the way the CPU talks to the other stuff inside |
| 689 | your box. If you say Y here, the kernel will include drivers and |
| 690 | infrastructure code to support PCI bus devices. |
| 691 | |
| 692 | config PCI_DOMAINS |
| 693 | bool |
| 694 | default PCI |
| 695 | |
| 696 | config MPC83xx_PCI2 |
| 697 | bool " Supprt for 2nd PCI host controller" |
| 698 | depends on PCI && MPC834x |
| 699 | default y if MPC834x_SYS |
| 700 | |
| 701 | config PCI_QSPAN |
| 702 | bool "QSpan PCI" |
| 703 | depends on !4xx && !CPM2 && 8xx |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 704 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 705 | help |
| 706 | Say Y here if you have a system based on a Motorola 8xx-series |
| 707 | embedded processor with a QSPAN PCI interface, otherwise say N. |
| 708 | |
| 709 | config PCI_8260 |
| 710 | bool |
| 711 | depends on PCI && 8260 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 712 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 713 | default y |
| 714 | |
| 715 | config 8260_PCI9 |
| 716 | bool " Enable workaround for MPC826x erratum PCI 9" |
| 717 | depends on PCI_8260 && !ADS8272 |
| 718 | default y |
| 719 | |
| 720 | choice |
| 721 | prompt " IDMA channel for PCI 9 workaround" |
| 722 | depends on 8260_PCI9 |
| 723 | |
| 724 | config 8260_PCI9_IDMA1 |
| 725 | bool "IDMA1" |
| 726 | |
| 727 | config 8260_PCI9_IDMA2 |
| 728 | bool "IDMA2" |
| 729 | |
| 730 | config 8260_PCI9_IDMA3 |
| 731 | bool "IDMA3" |
| 732 | |
| 733 | config 8260_PCI9_IDMA4 |
| 734 | bool "IDMA4" |
| 735 | |
| 736 | endchoice |
| 737 | |
| 738 | source "drivers/pci/Kconfig" |
| 739 | |
| 740 | source "drivers/pcmcia/Kconfig" |
| 741 | |
| 742 | source "drivers/pci/hotplug/Kconfig" |
| 743 | |
| 744 | endmenu |
| 745 | |
| 746 | menu "Advanced setup" |
| 747 | depends on PPC32 |
| 748 | |
| 749 | config ADVANCED_OPTIONS |
| 750 | bool "Prompt for advanced kernel configuration options" |
| 751 | help |
| 752 | This option will enable prompting for a variety of advanced kernel |
| 753 | configuration options. These options can cause the kernel to not |
| 754 | work if they are set incorrectly, but can be used to optimize certain |
| 755 | aspects of kernel memory management. |
| 756 | |
| 757 | Unless you know what you are doing, say N here. |
| 758 | |
| 759 | comment "Default settings for advanced configuration options are used" |
| 760 | depends on !ADVANCED_OPTIONS |
| 761 | |
| 762 | config HIGHMEM_START_BOOL |
| 763 | bool "Set high memory pool address" |
| 764 | depends on ADVANCED_OPTIONS && HIGHMEM |
| 765 | help |
| 766 | This option allows you to set the base address of the kernel virtual |
| 767 | area used to map high memory pages. This can be useful in |
| 768 | optimizing the layout of kernel virtual memory. |
| 769 | |
| 770 | Say N here unless you know what you are doing. |
| 771 | |
| 772 | config HIGHMEM_START |
| 773 | hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL |
| 774 | default "0xfe000000" |
| 775 | |
| 776 | config LOWMEM_SIZE_BOOL |
| 777 | bool "Set maximum low memory" |
| 778 | depends on ADVANCED_OPTIONS |
| 779 | help |
| 780 | This option allows you to set the maximum amount of memory which |
| 781 | will be used as "low memory", that is, memory which the kernel can |
| 782 | access directly, without having to set up a kernel virtual mapping. |
| 783 | This can be useful in optimizing the layout of kernel virtual |
| 784 | memory. |
| 785 | |
| 786 | Say N here unless you know what you are doing. |
| 787 | |
| 788 | config LOWMEM_SIZE |
| 789 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
| 790 | default "0x30000000" |
| 791 | |
| 792 | config KERNEL_START_BOOL |
| 793 | bool "Set custom kernel base address" |
| 794 | depends on ADVANCED_OPTIONS |
| 795 | help |
| 796 | This option allows you to set the kernel virtual address at which |
| 797 | the kernel will map low memory (the kernel image will be linked at |
| 798 | this address). This can be useful in optimizing the virtual memory |
| 799 | layout of the system. |
| 800 | |
| 801 | Say N here unless you know what you are doing. |
| 802 | |
| 803 | config KERNEL_START |
| 804 | hex "Virtual address of kernel base" if KERNEL_START_BOOL |
| 805 | default "0xc0000000" |
| 806 | |
| 807 | config TASK_SIZE_BOOL |
| 808 | bool "Set custom user task size" |
| 809 | depends on ADVANCED_OPTIONS |
| 810 | help |
| 811 | This option allows you to set the amount of virtual address space |
| 812 | allocated to user tasks. This can be useful in optimizing the |
| 813 | virtual memory layout of the system. |
| 814 | |
| 815 | Say N here unless you know what you are doing. |
| 816 | |
| 817 | config TASK_SIZE |
| 818 | hex "Size of user task space" if TASK_SIZE_BOOL |
| 819 | default "0x80000000" |
| 820 | |
| 821 | config CONSISTENT_START_BOOL |
| 822 | bool "Set custom consistent memory pool address" |
| 823 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 824 | help |
| 825 | This option allows you to set the base virtual address |
| 826 | of the the consistent memory pool. This pool of virtual |
| 827 | memory is used to make consistent memory allocations. |
| 828 | |
| 829 | config CONSISTENT_START |
| 830 | hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL |
| 831 | default "0xff100000" if NOT_COHERENT_CACHE |
| 832 | |
| 833 | config CONSISTENT_SIZE_BOOL |
| 834 | bool "Set custom consistent memory pool size" |
| 835 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 836 | help |
| 837 | This option allows you to set the size of the the |
| 838 | consistent memory pool. This pool of virtual memory |
| 839 | is used to make consistent memory allocations. |
| 840 | |
| 841 | config CONSISTENT_SIZE |
| 842 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL |
| 843 | default "0x00200000" if NOT_COHERENT_CACHE |
| 844 | |
| 845 | config BOOT_LOAD_BOOL |
| 846 | bool "Set the boot link/load address" |
| 847 | depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM |
| 848 | help |
| 849 | This option allows you to set the initial load address of the zImage |
| 850 | or zImage.initrd file. This can be useful if you are on a board |
| 851 | which has a small amount of memory. |
| 852 | |
| 853 | Say N here unless you know what you are doing. |
| 854 | |
| 855 | config BOOT_LOAD |
| 856 | hex "Link/load address for booting" if BOOT_LOAD_BOOL |
| 857 | default "0x00400000" if 40x || 8xx || 8260 |
| 858 | default "0x01000000" if 44x |
| 859 | default "0x00800000" |
| 860 | |
| 861 | config PIN_TLB |
| 862 | bool "Pinned Kernel TLBs (860 ONLY)" |
| 863 | depends on ADVANCED_OPTIONS && 8xx |
| 864 | endmenu |
| 865 | |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 866 | if PPC64 |
| 867 | config KERNEL_START |
| 868 | hex |
Stephen Rothwell | eeb2d21 | 2005-09-30 17:24:15 +1000 | [diff] [blame] | 869 | default "0xc000000000000000" |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 870 | endif |
| 871 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 872 | source "net/Kconfig" |
| 873 | |
| 874 | source "drivers/Kconfig" |
| 875 | |
| 876 | source "fs/Kconfig" |
| 877 | |
| 878 | # XXX source "arch/ppc/8xx_io/Kconfig" |
| 879 | |
| 880 | # XXX source "arch/ppc/8260_io/Kconfig" |
| 881 | |
| 882 | source "arch/powerpc/platforms/iseries/Kconfig" |
| 883 | |
| 884 | source "lib/Kconfig" |
| 885 | |
| 886 | source "arch/powerpc/oprofile/Kconfig" |
| 887 | |
| 888 | source "arch/powerpc/Kconfig.debug" |
| 889 | |
| 890 | source "security/Kconfig" |
| 891 | |
| 892 | config KEYS_COMPAT |
| 893 | bool |
| 894 | depends on COMPAT && KEYS |
| 895 | default y |
| 896 | |
| 897 | source "crypto/Kconfig" |