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