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