| 1 | config 64BIT |
| 2 | bool "64-bit kernel" if ARCH = "sparc" |
| 3 | default ARCH = "sparc64" |
| 4 | help |
| 5 | SPARC is a family of RISC microprocessors designed and marketed by |
| 6 | Sun Microsystems, incorporated. They are very widely found in Sun |
| 7 | workstations and clones. |
| 8 | |
| 9 | Say yes to build a 64-bit kernel - formerly known as sparc64 |
| 10 | Say no to build a 32-bit kernel - formerly known as sparc |
| 11 | |
| 12 | config SPARC |
| 13 | bool |
| 14 | default y |
| 15 | select OF |
| 16 | select OF_PROMTREE |
| 17 | select HAVE_IDE |
| 18 | select HAVE_OPROFILE |
| 19 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
| 20 | select HAVE_ARCH_TRACEHOOK |
| 21 | select SYSCTL_EXCEPTION_TRACE |
| 22 | select ARCH_WANT_OPTIONAL_GPIOLIB |
| 23 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
| 24 | select RTC_CLASS |
| 25 | select RTC_DRV_M48T59 |
| 26 | select HAVE_IRQ_WORK |
| 27 | select HAVE_DMA_ATTRS |
| 28 | select HAVE_DMA_API_DEBUG |
| 29 | select HAVE_ARCH_JUMP_LABEL |
| 30 | select HAVE_GENERIC_HARDIRQS |
| 31 | select GENERIC_IRQ_SHOW |
| 32 | select ARCH_WANT_IPC_PARSE_VERSION |
| 33 | select USE_GENERIC_SMP_HELPERS if SMP |
| 34 | select GENERIC_PCI_IOMAP |
| 35 | select HAVE_NMI_WATCHDOG if SPARC64 |
| 36 | select HAVE_BPF_JIT |
| 37 | select HAVE_DEBUG_BUGVERBOSE |
| 38 | select GENERIC_SMP_IDLE_THREAD |
| 39 | select GENERIC_CMOS_UPDATE |
| 40 | select GENERIC_CLOCKEVENTS |
| 41 | select GENERIC_STRNCPY_FROM_USER |
| 42 | select GENERIC_STRNLEN_USER |
| 43 | select MODULES_USE_ELF_RELA |
| 44 | select ODD_RT_SIGACTION |
| 45 | select GENERIC_SIGALTSTACK |
| 46 | select GENERIC_COMPAT_RT_SIGQUEUEINFO |
| 47 | select GENERIC_COMPAT_RT_SIGPROCMASK |
| 48 | select GENERIC_COMPAT_RT_SIGPENDING |
| 49 | select GENERIC_COMPAT_RT_SIGACTION |
| 50 | |
| 51 | config SPARC32 |
| 52 | def_bool !64BIT |
| 53 | select GENERIC_ATOMIC64 |
| 54 | select CLZ_TAB |
| 55 | select HAVE_UID16 |
| 56 | |
| 57 | config SPARC64 |
| 58 | def_bool 64BIT |
| 59 | select ARCH_SUPPORTS_MSI |
| 60 | select HAVE_FUNCTION_TRACER |
| 61 | select HAVE_FUNCTION_GRAPH_TRACER |
| 62 | select HAVE_FUNCTION_GRAPH_FP_TEST |
| 63 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
| 64 | select HAVE_KRETPROBES |
| 65 | select HAVE_KPROBES |
| 66 | select HAVE_RCU_TABLE_FREE if SMP |
| 67 | select HAVE_MEMBLOCK |
| 68 | select HAVE_MEMBLOCK_NODE_MAP |
| 69 | select HAVE_SYSCALL_WRAPPERS |
| 70 | select HAVE_DYNAMIC_FTRACE |
| 71 | select HAVE_FTRACE_MCOUNT_RECORD |
| 72 | select HAVE_SYSCALL_TRACEPOINTS |
| 73 | select HAVE_DEBUG_KMEMLEAK |
| 74 | select RTC_DRV_CMOS |
| 75 | select RTC_DRV_BQ4802 |
| 76 | select RTC_DRV_SUN4V |
| 77 | select RTC_DRV_STARFIRE |
| 78 | select HAVE_PERF_EVENTS |
| 79 | select PERF_USE_VMALLOC |
| 80 | select IRQ_PREFLOW_FASTEOI |
| 81 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
| 82 | select HAVE_C_RECORDMCOUNT |
| 83 | select NO_BOOTMEM |
| 84 | |
| 85 | config ARCH_DEFCONFIG |
| 86 | string |
| 87 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 |
| 88 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 |
| 89 | |
| 90 | # CONFIG_BITS can be used at source level to get 32/64 bits |
| 91 | config BITS |
| 92 | int |
| 93 | default 32 if SPARC32 |
| 94 | default 64 if SPARC64 |
| 95 | |
| 96 | config IOMMU_HELPER |
| 97 | bool |
| 98 | default y if SPARC64 |
| 99 | |
| 100 | config STACKTRACE_SUPPORT |
| 101 | bool |
| 102 | default y if SPARC64 |
| 103 | |
| 104 | config LOCKDEP_SUPPORT |
| 105 | bool |
| 106 | default y if SPARC64 |
| 107 | |
| 108 | config HAVE_LATENCYTOP_SUPPORT |
| 109 | bool |
| 110 | default y if SPARC64 |
| 111 | |
| 112 | config AUDIT_ARCH |
| 113 | bool |
| 114 | default y |
| 115 | |
| 116 | config HAVE_SETUP_PER_CPU_AREA |
| 117 | def_bool y if SPARC64 |
| 118 | |
| 119 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
| 120 | def_bool y if SPARC64 |
| 121 | |
| 122 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
| 123 | def_bool y if SPARC64 |
| 124 | |
| 125 | config MMU |
| 126 | bool |
| 127 | default y |
| 128 | |
| 129 | config HIGHMEM |
| 130 | bool |
| 131 | default y if SPARC32 |
| 132 | |
| 133 | config ZONE_DMA |
| 134 | bool |
| 135 | default y if SPARC32 |
| 136 | |
| 137 | config NEED_DMA_MAP_STATE |
| 138 | def_bool y |
| 139 | |
| 140 | config NEED_SG_DMA_LENGTH |
| 141 | def_bool y |
| 142 | |
| 143 | config GENERIC_ISA_DMA |
| 144 | bool |
| 145 | default y if SPARC32 |
| 146 | |
| 147 | config GENERIC_GPIO |
| 148 | bool |
| 149 | help |
| 150 | Generic GPIO API support |
| 151 | |
| 152 | config ARCH_NO_VIRT_TO_BUS |
| 153 | def_bool y |
| 154 | |
| 155 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 156 | def_bool y if SPARC64 |
| 157 | |
| 158 | source "init/Kconfig" |
| 159 | |
| 160 | source "kernel/Kconfig.freezer" |
| 161 | |
| 162 | menu "Processor type and features" |
| 163 | |
| 164 | config SMP |
| 165 | bool "Symmetric multi-processing support" |
| 166 | ---help--- |
| 167 | This enables support for systems with more than one CPU. If you have |
| 168 | a system with only one CPU, say N. If you have a system with more |
| 169 | than one CPU, say Y. |
| 170 | |
| 171 | If you say N here, the kernel will run on single and multiprocessor |
| 172 | machines, but will use only one CPU of a multiprocessor machine. If |
| 173 | you say Y here, the kernel will run on many, but not all, |
| 174 | singleprocessor machines. On a singleprocessor machine, the kernel |
| 175 | will run faster if you say N here. |
| 176 | |
| 177 | People using multiprocessor machines who say Y here should also say |
| 178 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power |
| 179 | Management" code will be disabled if you say Y here. |
| 180 | |
| 181 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
| 182 | available at <http://www.tldp.org/docs.html#howto>. |
| 183 | |
| 184 | If you don't know what to do here, say N. |
| 185 | |
| 186 | config NR_CPUS |
| 187 | int "Maximum number of CPUs" |
| 188 | depends on SMP |
| 189 | range 2 32 if SPARC32 |
| 190 | range 2 1024 if SPARC64 |
| 191 | default 32 if SPARC32 |
| 192 | default 64 if SPARC64 |
| 193 | |
| 194 | source kernel/Kconfig.hz |
| 195 | |
| 196 | config RWSEM_GENERIC_SPINLOCK |
| 197 | bool |
| 198 | default y if SPARC32 |
| 199 | |
| 200 | config RWSEM_XCHGADD_ALGORITHM |
| 201 | bool |
| 202 | default y if SPARC64 |
| 203 | |
| 204 | config GENERIC_HWEIGHT |
| 205 | bool |
| 206 | default y if !ULTRA_HAS_POPULATION_COUNT |
| 207 | |
| 208 | config GENERIC_CALIBRATE_DELAY |
| 209 | bool |
| 210 | default y |
| 211 | |
| 212 | config ARCH_MAY_HAVE_PC_FDC |
| 213 | bool |
| 214 | default y |
| 215 | |
| 216 | config EMULATED_CMPXCHG |
| 217 | bool |
| 218 | default y if SPARC32 |
| 219 | help |
| 220 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() |
| 221 | is emulated, and therefore it is not completely atomic. |
| 222 | |
| 223 | # Makefile helpers |
| 224 | config SPARC32_SMP |
| 225 | bool |
| 226 | default y |
| 227 | depends on SPARC32 && SMP |
| 228 | |
| 229 | config SPARC64_SMP |
| 230 | bool |
| 231 | default y |
| 232 | depends on SPARC64 && SMP |
| 233 | |
| 234 | config EARLYFB |
| 235 | bool "Support for early boot text console" |
| 236 | default y |
| 237 | depends on SPARC64 |
| 238 | help |
| 239 | Say Y here to enable a faster early framebuffer boot console. |
| 240 | |
| 241 | config SECCOMP |
| 242 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 243 | depends on SPARC64 && PROC_FS |
| 244 | default y |
| 245 | help |
| 246 | This kernel feature is useful for number crunching applications |
| 247 | that may need to compute untrusted bytecode during their |
| 248 | execution. By using pipes or other transports made available to |
| 249 | the process as file descriptors supporting the read/write |
| 250 | syscalls, it's possible to isolate those applications in |
| 251 | their own address space using seccomp. Once seccomp is |
| 252 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 253 | and the task is only allowed to execute a few safe syscalls |
| 254 | defined by each seccomp mode. |
| 255 | |
| 256 | If unsure, say Y. Only embedded should say N here. |
| 257 | |
| 258 | config HOTPLUG_CPU |
| 259 | bool "Support for hot-pluggable CPUs" |
| 260 | depends on SPARC64 && SMP |
| 261 | select HOTPLUG |
| 262 | help |
| 263 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 264 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 265 | Say N if you want to disable CPU hotplug. |
| 266 | |
| 267 | if SPARC64 |
| 268 | source "drivers/cpufreq/Kconfig" |
| 269 | |
| 270 | config US3_FREQ |
| 271 | tristate "UltraSPARC-III CPU Frequency driver" |
| 272 | depends on CPU_FREQ |
| 273 | select CPU_FREQ_TABLE |
| 274 | help |
| 275 | This adds the CPUFreq driver for UltraSPARC-III processors. |
| 276 | |
| 277 | For details, take a look at <file:Documentation/cpu-freq>. |
| 278 | |
| 279 | If in doubt, say N. |
| 280 | |
| 281 | config US2E_FREQ |
| 282 | tristate "UltraSPARC-IIe CPU Frequency driver" |
| 283 | depends on CPU_FREQ |
| 284 | select CPU_FREQ_TABLE |
| 285 | help |
| 286 | This adds the CPUFreq driver for UltraSPARC-IIe processors. |
| 287 | |
| 288 | For details, take a look at <file:Documentation/cpu-freq>. |
| 289 | |
| 290 | If in doubt, say N. |
| 291 | |
| 292 | endif |
| 293 | |
| 294 | config US3_MC |
| 295 | tristate "UltraSPARC-III Memory Controller driver" |
| 296 | depends on SPARC64 |
| 297 | default y |
| 298 | help |
| 299 | This adds a driver for the UltraSPARC-III memory controller. |
| 300 | Loading this driver allows exact mnemonic strings to be |
| 301 | printed in the event of a memory error, so that the faulty DIMM |
| 302 | on the motherboard can be matched to the error. |
| 303 | |
| 304 | If in doubt, say Y, as this information can be very useful. |
| 305 | |
| 306 | # Global things across all Sun machines. |
| 307 | config GENERIC_LOCKBREAK |
| 308 | bool |
| 309 | default y |
| 310 | depends on SPARC64 && SMP && PREEMPT |
| 311 | |
| 312 | config NUMA |
| 313 | bool "NUMA support" |
| 314 | depends on SPARC64 && SMP |
| 315 | |
| 316 | config NODES_SHIFT |
| 317 | int |
| 318 | default "4" |
| 319 | depends on NEED_MULTIPLE_NODES |
| 320 | |
| 321 | # Some NUMA nodes have memory ranges that span |
| 322 | # other nodes. Even though a pfn is valid and |
| 323 | # between a node's start and end pfns, it may not |
| 324 | # reside on that node. See memmap_init_zone() |
| 325 | # for details. |
| 326 | config NODES_SPAN_OTHER_NODES |
| 327 | def_bool y |
| 328 | depends on NEED_MULTIPLE_NODES |
| 329 | |
| 330 | config ARCH_SELECT_MEMORY_MODEL |
| 331 | def_bool y if SPARC64 |
| 332 | |
| 333 | config ARCH_SPARSEMEM_ENABLE |
| 334 | def_bool y if SPARC64 |
| 335 | select SPARSEMEM_VMEMMAP_ENABLE |
| 336 | |
| 337 | config ARCH_SPARSEMEM_DEFAULT |
| 338 | def_bool y if SPARC64 |
| 339 | |
| 340 | source "mm/Kconfig" |
| 341 | |
| 342 | config SCHED_SMT |
| 343 | bool "SMT (Hyperthreading) scheduler support" |
| 344 | depends on SPARC64 && SMP |
| 345 | default y |
| 346 | help |
| 347 | SMT scheduler support improves the CPU scheduler's decision making |
| 348 | when dealing with SPARC cpus at a cost of slightly increased overhead |
| 349 | in some places. If unsure say N here. |
| 350 | |
| 351 | config SCHED_MC |
| 352 | bool "Multi-core scheduler support" |
| 353 | depends on SPARC64 && SMP |
| 354 | default y |
| 355 | help |
| 356 | Multi-core scheduler support improves the CPU scheduler's decision |
| 357 | making when dealing with multi-core CPU chips at a cost of slightly |
| 358 | increased overhead in some places. If unsure say N here. |
| 359 | |
| 360 | source "kernel/Kconfig.preempt" |
| 361 | |
| 362 | config CMDLINE_BOOL |
| 363 | bool "Default bootloader kernel arguments" |
| 364 | depends on SPARC64 |
| 365 | |
| 366 | config CMDLINE |
| 367 | string "Initial kernel command string" |
| 368 | depends on CMDLINE_BOOL |
| 369 | default "console=ttyS0,9600 root=/dev/sda1" |
| 370 | help |
| 371 | Say Y here if you want to be able to pass default arguments to |
| 372 | the kernel. This will be overridden by the bootloader, if you |
| 373 | use one (such as SILO). This is most useful if you want to boot |
| 374 | a kernel from TFTP, and want default options to be available |
| 375 | with having them passed on the command line. |
| 376 | |
| 377 | NOTE: This option WILL override the PROM bootargs setting! |
| 378 | |
| 379 | config SUN_PM |
| 380 | bool |
| 381 | default y if SPARC32 |
| 382 | help |
| 383 | Enable power management and CPU standby features on supported |
| 384 | SPARC platforms. |
| 385 | |
| 386 | config SPARC_LED |
| 387 | tristate "Sun4m LED driver" |
| 388 | depends on SPARC32 |
| 389 | help |
| 390 | This driver toggles the front-panel LED on sun4m systems |
| 391 | in a user-specifiable manner. Its state can be probed |
| 392 | by reading /proc/led and its blinking mode can be changed |
| 393 | via writes to /proc/led |
| 394 | |
| 395 | config SERIAL_CONSOLE |
| 396 | bool |
| 397 | depends on SPARC32 |
| 398 | default y |
| 399 | ---help--- |
| 400 | If you say Y here, it will be possible to use a serial port as the |
| 401 | system console (the system console is the device which receives all |
| 402 | kernel messages and warnings and which allows logins in single user |
| 403 | mode). This could be useful if some terminal or printer is connected |
| 404 | to that serial port. |
| 405 | |
| 406 | Even if you say Y here, the currently visible virtual console |
| 407 | (/dev/tty0) will still be used as the system console by default, but |
| 408 | you can alter that using a kernel command line option such as |
| 409 | "console=ttyS1". (Try "man bootparam" or see the documentation of |
| 410 | your boot loader (silo) about how to pass options to the kernel at |
| 411 | boot time.) |
| 412 | |
| 413 | If you don't have a graphics card installed and you say Y here, the |
| 414 | kernel will automatically use the first serial line, /dev/ttyS0, as |
| 415 | system console. |
| 416 | |
| 417 | If unsure, say N. |
| 418 | |
| 419 | config SPARC_LEON |
| 420 | bool "Sparc Leon processor family" |
| 421 | depends on SPARC32 |
| 422 | ---help--- |
| 423 | If you say Y here if you are running on a SPARC-LEON processor. |
| 424 | The LEON processor is a synthesizable VHDL model of the |
| 425 | SPARC-v8 standard. LEON is part of the GRLIB collection of |
| 426 | IP cores that are distributed under GPL. GRLIB can be downloaded |
| 427 | from www.gaisler.com. You can download a sparc-linux cross-compilation |
| 428 | toolchain at www.gaisler.com. |
| 429 | |
| 430 | if SPARC_LEON |
| 431 | menu "U-Boot options" |
| 432 | |
| 433 | config UBOOT_LOAD_ADDR |
| 434 | hex "uImage Load Address" |
| 435 | default 0x40004000 |
| 436 | ---help--- |
| 437 | U-Boot kernel load address, the address in physical address space |
| 438 | where u-boot will place the Linux kernel before booting it. |
| 439 | This address is normally the base address of main memory + 0x4000. |
| 440 | |
| 441 | config UBOOT_FLASH_ADDR |
| 442 | hex "uImage.o Load Address" |
| 443 | default 0x00080000 |
| 444 | ---help--- |
| 445 | Optional setting only affecting the uImage.o ELF-image used to |
| 446 | download the uImage file to the target using a ELF-loader other than |
| 447 | U-Boot. It may for example be used to download an uImage to FLASH with |
| 448 | the GRMON utility before even starting u-boot. |
| 449 | |
| 450 | config UBOOT_ENTRY_ADDR |
| 451 | hex "uImage Entry Address" |
| 452 | default 0xf0004000 |
| 453 | ---help--- |
| 454 | Do not change this unless you know what you're doing. This is |
| 455 | hardcoded by the SPARC32 and LEON port. |
| 456 | |
| 457 | This is the virtual address u-boot jumps to when booting the Linux |
| 458 | Kernel. |
| 459 | |
| 460 | endmenu |
| 461 | endif |
| 462 | |
| 463 | endmenu |
| 464 | |
| 465 | menu "Bus options (PCI etc.)" |
| 466 | config SBUS |
| 467 | bool |
| 468 | default y |
| 469 | |
| 470 | config SBUSCHAR |
| 471 | bool |
| 472 | default y |
| 473 | |
| 474 | config SUN_LDOMS |
| 475 | bool "Sun Logical Domains support" |
| 476 | depends on SPARC64 |
| 477 | help |
| 478 | Say Y here is you want to support virtual devices via |
| 479 | Logical Domains. |
| 480 | |
| 481 | config PCI |
| 482 | bool "Support for PCI and PS/2 keyboard/mouse" |
| 483 | help |
| 484 | Find out whether your system includes a PCI bus. PCI is the name of |
| 485 | a bus system, i.e. the way the CPU talks to the other stuff inside |
| 486 | your box. If you say Y here, the kernel will include drivers and |
| 487 | infrastructure code to support PCI bus devices. |
| 488 | |
| 489 | CONFIG_PCI is needed for all JavaStation's (including MrCoffee), |
| 490 | CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. |
| 491 | All of these platforms are extremely obscure, so say N if unsure. |
| 492 | |
| 493 | config PCI_DOMAINS |
| 494 | def_bool PCI if SPARC64 |
| 495 | |
| 496 | config PCI_SYSCALL |
| 497 | def_bool PCI |
| 498 | |
| 499 | config PCIC_PCI |
| 500 | bool |
| 501 | depends on PCI && SPARC32 && !SPARC_LEON |
| 502 | default y |
| 503 | |
| 504 | config LEON_PCI |
| 505 | bool |
| 506 | depends on PCI && SPARC_LEON |
| 507 | default y |
| 508 | |
| 509 | config GRPCI2 |
| 510 | bool "GRPCI2 Host Bridge Support" |
| 511 | depends on LEON_PCI |
| 512 | default y |
| 513 | help |
| 514 | Say Y here to include the GRPCI2 Host Bridge Driver. |
| 515 | |
| 516 | source "drivers/pci/Kconfig" |
| 517 | |
| 518 | source "drivers/pcmcia/Kconfig" |
| 519 | |
| 520 | config SUN_OPENPROMFS |
| 521 | tristate "Openprom tree appears in /proc/openprom" |
| 522 | help |
| 523 | If you say Y, the OpenPROM device tree will be available as a |
| 524 | virtual file system, which you can mount to /proc/openprom by "mount |
| 525 | -t openpromfs none /proc/openprom". |
| 526 | |
| 527 | To compile the /proc/openprom support as a module, choose M here: the |
| 528 | module will be called openpromfs. |
| 529 | |
| 530 | Only choose N if you know in advance that you will not need to modify |
| 531 | OpenPROM settings on the running system. |
| 532 | |
| 533 | # Makefile helper |
| 534 | config SPARC64_PCI |
| 535 | bool |
| 536 | default y |
| 537 | depends on SPARC64 && PCI |
| 538 | |
| 539 | endmenu |
| 540 | |
| 541 | menu "Executable file formats" |
| 542 | |
| 543 | source "fs/Kconfig.binfmt" |
| 544 | |
| 545 | config COMPAT |
| 546 | bool |
| 547 | depends on SPARC64 |
| 548 | default y |
| 549 | select COMPAT_BINFMT_ELF |
| 550 | select HAVE_UID16 |
| 551 | select ARCH_WANT_OLD_COMPAT_IPC |
| 552 | |
| 553 | config SYSVIPC_COMPAT |
| 554 | bool |
| 555 | depends on COMPAT && SYSVIPC |
| 556 | default y |
| 557 | |
| 558 | config KEYS_COMPAT |
| 559 | def_bool y if COMPAT && KEYS |
| 560 | |
| 561 | endmenu |
| 562 | |
| 563 | source "net/Kconfig" |
| 564 | |
| 565 | source "drivers/Kconfig" |
| 566 | |
| 567 | source "drivers/sbus/char/Kconfig" |
| 568 | |
| 569 | source "fs/Kconfig" |
| 570 | |
| 571 | source "arch/sparc/Kconfig.debug" |
| 572 | |
| 573 | source "security/Kconfig" |
| 574 | |
| 575 | source "crypto/Kconfig" |
| 576 | |
| 577 | source "lib/Kconfig" |