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