1config 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 12config SPARC 13 bool 14 default y 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI 16 select ARCH_MIGHT_HAVE_PC_SERIO 17 select OF 18 select OF_PROMTREE 19 select HAVE_IDE 20 select HAVE_OPROFILE 21 select HAVE_ARCH_KGDB if !SMP || SPARC64 22 select HAVE_ARCH_TRACEHOOK 23 select HAVE_EXIT_THREAD 24 select SYSCTL_EXCEPTION_TRACE 25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 26 select RTC_CLASS 27 select RTC_DRV_M48T59 28 select RTC_SYSTOHC 29 select HAVE_DMA_API_DEBUG 30 select HAVE_ARCH_JUMP_LABEL if SPARC64 31 select GENERIC_IRQ_SHOW 32 select ARCH_WANT_IPC_PARSE_VERSION 33 select GENERIC_PCI_IOMAP 34 select HAVE_NMI_WATCHDOG if SPARC64 35 select HAVE_CBPF_JIT 36 select HAVE_DEBUG_BUGVERBOSE 37 select GENERIC_SMP_IDLE_THREAD 38 select GENERIC_CLOCKEVENTS 39 select GENERIC_STRNCPY_FROM_USER 40 select GENERIC_STRNLEN_USER 41 select MODULES_USE_ELF_RELA 42 select ODD_RT_SIGACTION 43 select OLD_SIGSUSPEND 44 select ARCH_HAS_SG_CHAIN 45 select CPU_NO_EFFICIENT_FFS 46 select HAVE_ARCH_HARDENED_USERCOPY 47 48config SPARC32 49 def_bool !64BIT 50 select GENERIC_ATOMIC64 51 select CLZ_TAB 52 select HAVE_UID16 53 select OLD_SIGACTION 54 55config SPARC64 56 def_bool 64BIT 57 select HAVE_FUNCTION_TRACER 58 select HAVE_FUNCTION_GRAPH_TRACER 59 select HAVE_FUNCTION_GRAPH_FP_TEST 60 select HAVE_KRETPROBES 61 select HAVE_KPROBES 62 select HAVE_RCU_TABLE_FREE if SMP 63 select HAVE_MEMBLOCK 64 select HAVE_MEMBLOCK_NODE_MAP 65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 66 select HAVE_DYNAMIC_FTRACE 67 select HAVE_FTRACE_MCOUNT_RECORD 68 select HAVE_SYSCALL_TRACEPOINTS 69 select HAVE_CONTEXT_TRACKING 70 select HAVE_DEBUG_KMEMLEAK 71 select SPARSE_IRQ 72 select RTC_DRV_CMOS 73 select RTC_DRV_BQ4802 74 select RTC_DRV_SUN4V 75 select RTC_DRV_STARFIRE 76 select HAVE_PERF_EVENTS 77 select PERF_USE_VMALLOC 78 select IRQ_PREFLOW_FASTEOI 79 select ARCH_HAVE_NMI_SAFE_CMPXCHG 80 select HAVE_C_RECORDMCOUNT 81 select NO_BOOTMEM 82 select HAVE_ARCH_AUDITSYSCALL 83 select ARCH_SUPPORTS_ATOMIC_RMW 84 select HAVE_NMI 85 86config ARCH_DEFCONFIG 87 string 88 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 89 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 90 91config ARCH_PROC_KCORE_TEXT 92 def_bool y 93 94config IOMMU_HELPER 95 bool 96 default y if SPARC64 97 98config STACKTRACE_SUPPORT 99 bool 100 default y if SPARC64 101 102config LOCKDEP_SUPPORT 103 bool 104 default y if SPARC64 105 106config ARCH_HIBERNATION_POSSIBLE 107 def_bool y if SPARC64 108 109config AUDIT_ARCH 110 bool 111 default y 112 113config HAVE_SETUP_PER_CPU_AREA 114 def_bool y if SPARC64 115 116config NEED_PER_CPU_EMBED_FIRST_CHUNK 117 def_bool y if SPARC64 118 119config NEED_PER_CPU_PAGE_FIRST_CHUNK 120 def_bool y if SPARC64 121 122config MMU 123 bool 124 default y 125 126config HIGHMEM 127 bool 128 default y if SPARC32 129 130config ZONE_DMA 131 bool 132 default y if SPARC32 133 134config NEED_DMA_MAP_STATE 135 def_bool y 136 137config NEED_SG_DMA_LENGTH 138 def_bool y 139 140config GENERIC_ISA_DMA 141 bool 142 default y if SPARC32 143 144config ARCH_SUPPORTS_DEBUG_PAGEALLOC 145 def_bool y if SPARC64 146 147config PGTABLE_LEVELS 148 default 4 if 64BIT 149 default 3 150 151source "init/Kconfig" 152 153source "kernel/Kconfig.freezer" 154 155menu "Processor type and features" 156 157config SMP 158 bool "Symmetric multi-processing support" 159 ---help--- 160 This enables support for systems with more than one CPU. If you have 161 a system with only one CPU, say N. If you have a system with more 162 than one CPU, say Y. 163 164 If you say N here, the kernel will run on uni- and multiprocessor 165 machines, but will use only one CPU of a multiprocessor machine. If 166 you say Y here, the kernel will run on many, but not all, 167 uniprocessor machines. On a uniprocessor machine, the kernel 168 will run faster if you say N here. 169 170 People using multiprocessor machines who say Y here should also say 171 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 172 Management" code will be disabled if you say Y here. 173 174 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 175 available at <http://www.tldp.org/docs.html#howto>. 176 177 If you don't know what to do here, say N. 178 179config NR_CPUS 180 int "Maximum number of CPUs" 181 depends on SMP 182 range 2 32 if SPARC32 183 range 2 1024 if SPARC64 184 default 32 if SPARC32 185 default 64 if SPARC64 186 187source kernel/Kconfig.hz 188 189config RWSEM_GENERIC_SPINLOCK 190 bool 191 default y if SPARC32 192 193config RWSEM_XCHGADD_ALGORITHM 194 bool 195 default y if SPARC64 196 197config GENERIC_HWEIGHT 198 bool 199 default y 200 201config GENERIC_CALIBRATE_DELAY 202 bool 203 default y 204 205config ARCH_MAY_HAVE_PC_FDC 206 bool 207 default y 208 209config EMULATED_CMPXCHG 210 bool 211 default y if SPARC32 212 help 213 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 214 is emulated, and therefore it is not completely atomic. 215 216# Makefile helpers 217config SPARC32_SMP 218 bool 219 default y 220 depends on SPARC32 && SMP 221 222config SPARC64_SMP 223 bool 224 default y 225 depends on SPARC64 && SMP 226 227config EARLYFB 228 bool "Support for early boot text console" 229 default y 230 depends on SPARC64 231 help 232 Say Y here to enable a faster early framebuffer boot console. 233 234config SECCOMP 235 bool "Enable seccomp to safely compute untrusted bytecode" 236 depends on SPARC64 && PROC_FS 237 default y 238 help 239 This kernel feature is useful for number crunching applications 240 that may need to compute untrusted bytecode during their 241 execution. By using pipes or other transports made available to 242 the process as file descriptors supporting the read/write 243 syscalls, it's possible to isolate those applications in 244 their own address space using seccomp. Once seccomp is 245 enabled via /proc/<pid>/seccomp, it cannot be disabled 246 and the task is only allowed to execute a few safe syscalls 247 defined by each seccomp mode. 248 249 If unsure, say Y. Only embedded should say N here. 250 251config HOTPLUG_CPU 252 bool "Support for hot-pluggable CPUs" 253 depends on SPARC64 && SMP 254 help 255 Say Y here to experiment with turning CPUs off and on. CPUs 256 can be controlled through /sys/devices/system/cpu/cpu#. 257 Say N if you want to disable CPU hotplug. 258 259if SPARC64 260source "drivers/cpufreq/Kconfig" 261endif 262 263config US3_MC 264 tristate "UltraSPARC-III Memory Controller driver" 265 depends on SPARC64 266 default y 267 help 268 This adds a driver for the UltraSPARC-III memory controller. 269 Loading this driver allows exact mnemonic strings to be 270 printed in the event of a memory error, so that the faulty DIMM 271 on the motherboard can be matched to the error. 272 273 If in doubt, say Y, as this information can be very useful. 274 275# Global things across all Sun machines. 276config GENERIC_LOCKBREAK 277 bool 278 default y 279 depends on SPARC64 && SMP && PREEMPT 280 281config NUMA 282 bool "NUMA support" 283 depends on SPARC64 && SMP 284 285config NODES_SHIFT 286 int 287 default "4" 288 depends on NEED_MULTIPLE_NODES 289 290# Some NUMA nodes have memory ranges that span 291# other nodes. Even though a pfn is valid and 292# between a node's start and end pfns, it may not 293# reside on that node. See memmap_init_zone() 294# for details. 295config NODES_SPAN_OTHER_NODES 296 def_bool y 297 depends on NEED_MULTIPLE_NODES 298 299config ARCH_SELECT_MEMORY_MODEL 300 def_bool y if SPARC64 301 302config ARCH_SPARSEMEM_ENABLE 303 def_bool y if SPARC64 304 select SPARSEMEM_VMEMMAP_ENABLE 305 306config ARCH_SPARSEMEM_DEFAULT 307 def_bool y if SPARC64 308 309source "mm/Kconfig" 310 311if SPARC64 312source "kernel/power/Kconfig" 313endif 314 315config SCHED_SMT 316 bool "SMT (Hyperthreading) scheduler support" 317 depends on SPARC64 && SMP 318 default y 319 help 320 SMT scheduler support improves the CPU scheduler's decision making 321 when dealing with SPARC cpus at a cost of slightly increased overhead 322 in some places. If unsure say N here. 323 324config SCHED_MC 325 bool "Multi-core scheduler support" 326 depends on SPARC64 && SMP 327 default y 328 help 329 Multi-core scheduler support improves the CPU scheduler's decision 330 making when dealing with multi-core CPU chips at a cost of slightly 331 increased overhead in some places. If unsure say N here. 332 333source "kernel/Kconfig.preempt" 334 335config CMDLINE_BOOL 336 bool "Default bootloader kernel arguments" 337 depends on SPARC64 338 339config CMDLINE 340 string "Initial kernel command string" 341 depends on CMDLINE_BOOL 342 default "console=ttyS0,9600 root=/dev/sda1" 343 help 344 Say Y here if you want to be able to pass default arguments to 345 the kernel. This will be overridden by the bootloader, if you 346 use one (such as SILO). This is most useful if you want to boot 347 a kernel from TFTP, and want default options to be available 348 with having them passed on the command line. 349 350 NOTE: This option WILL override the PROM bootargs setting! 351 352config SUN_PM 353 bool 354 default y if SPARC32 355 help 356 Enable power management and CPU standby features on supported 357 SPARC platforms. 358 359config SPARC_LED 360 tristate "Sun4m LED driver" 361 depends on SPARC32 362 help 363 This driver toggles the front-panel LED on sun4m systems 364 in a user-specifiable manner. Its state can be probed 365 by reading /proc/led and its blinking mode can be changed 366 via writes to /proc/led 367 368config SERIAL_CONSOLE 369 bool 370 depends on SPARC32 371 default y 372 ---help--- 373 If you say Y here, it will be possible to use a serial port as the 374 system console (the system console is the device which receives all 375 kernel messages and warnings and which allows logins in single user 376 mode). This could be useful if some terminal or printer is connected 377 to that serial port. 378 379 Even if you say Y here, the currently visible virtual console 380 (/dev/tty0) will still be used as the system console by default, but 381 you can alter that using a kernel command line option such as 382 "console=ttyS1". (Try "man bootparam" or see the documentation of 383 your boot loader (silo) about how to pass options to the kernel at 384 boot time.) 385 386 If you don't have a graphics card installed and you say Y here, the 387 kernel will automatically use the first serial line, /dev/ttyS0, as 388 system console. 389 390 If unsure, say N. 391 392config SPARC_LEON 393 bool "Sparc Leon processor family" 394 depends on SPARC32 395 select USB_EHCI_BIG_ENDIAN_MMIO 396 select USB_EHCI_BIG_ENDIAN_DESC 397 ---help--- 398 If you say Y here if you are running on a SPARC-LEON processor. 399 The LEON processor is a synthesizable VHDL model of the 400 SPARC-v8 standard. LEON is part of the GRLIB collection of 401 IP cores that are distributed under GPL. GRLIB can be downloaded 402 from www.gaisler.com. You can download a sparc-linux cross-compilation 403 toolchain at www.gaisler.com. 404 405if SPARC_LEON 406menu "U-Boot options" 407 408config UBOOT_LOAD_ADDR 409 hex "uImage Load Address" 410 default 0x40004000 411 ---help--- 412 U-Boot kernel load address, the address in physical address space 413 where u-boot will place the Linux kernel before booting it. 414 This address is normally the base address of main memory + 0x4000. 415 416config UBOOT_FLASH_ADDR 417 hex "uImage.o Load Address" 418 default 0x00080000 419 ---help--- 420 Optional setting only affecting the uImage.o ELF-image used to 421 download the uImage file to the target using a ELF-loader other than 422 U-Boot. It may for example be used to download an uImage to FLASH with 423 the GRMON utility before even starting u-boot. 424 425config UBOOT_ENTRY_ADDR 426 hex "uImage Entry Address" 427 default 0xf0004000 428 ---help--- 429 Do not change this unless you know what you're doing. This is 430 hardcoded by the SPARC32 and LEON port. 431 432 This is the virtual address u-boot jumps to when booting the Linux 433 Kernel. 434 435endmenu 436endif 437 438endmenu 439 440menu "Bus options (PCI etc.)" 441config SBUS 442 bool 443 default y 444 445config SBUSCHAR 446 bool 447 default y 448 449config SUN_LDOMS 450 bool "Sun Logical Domains support" 451 depends on SPARC64 452 help 453 Say Y here is you want to support virtual devices via 454 Logical Domains. 455 456config PCI 457 bool "Support for PCI and PS/2 keyboard/mouse" 458 help 459 Find out whether your system includes a PCI bus. PCI is the name of 460 a bus system, i.e. the way the CPU talks to the other stuff inside 461 your box. If you say Y here, the kernel will include drivers and 462 infrastructure code to support PCI bus devices. 463 464 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 465 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 466 All of these platforms are extremely obscure, so say N if unsure. 467 468config PCI_DOMAINS 469 def_bool PCI if SPARC64 470 471config PCI_SYSCALL 472 def_bool PCI 473 474config PCIC_PCI 475 bool 476 depends on PCI && SPARC32 && !SPARC_LEON 477 default y 478 479config LEON_PCI 480 bool 481 depends on PCI && SPARC_LEON 482 default y 483 484config SPARC_GRPCI1 485 bool "GRPCI Host Bridge Support" 486 depends on LEON_PCI 487 default y 488 help 489 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 490 PCI host controller is typically found in GRLIB SPARC32/LEON 491 systems. The driver has one property (all_pci_errors) controlled 492 from the bootloader that makes the GRPCI to generate interrupts 493 on detected PCI Parity and System errors. 494 495config SPARC_GRPCI2 496 bool "GRPCI2 Host Bridge Support" 497 depends on LEON_PCI 498 default y 499 help 500 Say Y here to include the GRPCI2 Host Bridge Driver. 501 502source "drivers/pci/Kconfig" 503 504source "drivers/pcmcia/Kconfig" 505 506config SUN_OPENPROMFS 507 tristate "Openprom tree appears in /proc/openprom" 508 help 509 If you say Y, the OpenPROM device tree will be available as a 510 virtual file system, which you can mount to /proc/openprom by "mount 511 -t openpromfs none /proc/openprom". 512 513 To compile the /proc/openprom support as a module, choose M here: the 514 module will be called openpromfs. 515 516 Only choose N if you know in advance that you will not need to modify 517 OpenPROM settings on the running system. 518 519# Makefile helpers 520config SPARC64_PCI 521 bool 522 default y 523 depends on SPARC64 && PCI 524 525config SPARC64_PCI_MSI 526 bool 527 default y 528 depends on SPARC64_PCI && PCI_MSI 529 530endmenu 531 532menu "Executable file formats" 533 534source "fs/Kconfig.binfmt" 535 536config COMPAT 537 bool 538 depends on SPARC64 539 default y 540 select COMPAT_BINFMT_ELF 541 select HAVE_UID16 542 select ARCH_WANT_OLD_COMPAT_IPC 543 select COMPAT_OLD_SIGACTION 544 545config SYSVIPC_COMPAT 546 bool 547 depends on COMPAT && SYSVIPC 548 default y 549 550config KEYS_COMPAT 551 def_bool y if COMPAT && KEYS 552 553endmenu 554 555source "net/Kconfig" 556 557source "drivers/Kconfig" 558 559source "drivers/sbus/char/Kconfig" 560 561source "fs/Kconfig" 562 563source "arch/sparc/Kconfig.debug" 564 565source "security/Kconfig" 566 567source "crypto/Kconfig" 568 569source "lib/Kconfig" 570