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 ARCH_WANT_OPTIONAL_GPIOLIB 22 select RTC_CLASS 23 select RTC_DRV_M48T59 24 select HAVE_IRQ_WORK 25 select HAVE_DMA_ATTRS 26 select HAVE_DMA_API_DEBUG 27 select HAVE_ARCH_JUMP_LABEL 28 select HAVE_GENERIC_HARDIRQS 29 select GENERIC_IRQ_SHOW 30 select USE_GENERIC_SMP_HELPERS if SMP 31 32config SPARC32 33 def_bool !64BIT 34 35config SPARC64 36 def_bool 64BIT 37 select ARCH_SUPPORTS_MSI 38 select HAVE_FUNCTION_TRACER 39 select HAVE_FUNCTION_GRAPH_TRACER 40 select HAVE_FUNCTION_GRAPH_FP_TEST 41 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 42 select HAVE_KRETPROBES 43 select HAVE_KPROBES 44 select HAVE_RCU_TABLE_FREE if SMP 45 select HAVE_MEMBLOCK 46 select HAVE_SYSCALL_WRAPPERS 47 select HAVE_DYNAMIC_FTRACE 48 select HAVE_FTRACE_MCOUNT_RECORD 49 select HAVE_SYSCALL_TRACEPOINTS 50 select RTC_DRV_CMOS 51 select RTC_DRV_BQ4802 52 select RTC_DRV_SUN4V 53 select RTC_DRV_STARFIRE 54 select HAVE_PERF_EVENTS 55 select PERF_USE_VMALLOC 56 select IRQ_PREFLOW_FASTEOI 57 select ARCH_HAVE_NMI_SAFE_CMPXCHG 58 59config ARCH_DEFCONFIG 60 string 61 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 62 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 63 64# CONFIG_BITS can be used at source level to get 32/64 bits 65config BITS 66 int 67 default 32 if SPARC32 68 default 64 if SPARC64 69 70config ARCH_USES_GETTIMEOFFSET 71 bool 72 default y if SPARC32 73 74config GENERIC_CMOS_UPDATE 75 bool 76 default y 77 78config GENERIC_CLOCKEVENTS 79 bool 80 default y if SPARC64 81 82config IOMMU_HELPER 83 bool 84 default y if SPARC64 85 86config STACKTRACE_SUPPORT 87 bool 88 default y if SPARC64 89 90config LOCKDEP_SUPPORT 91 bool 92 default y if SPARC64 93 94config HAVE_LATENCYTOP_SUPPORT 95 bool 96 default y if SPARC64 97 98config AUDIT_ARCH 99 bool 100 default y 101 102config HAVE_SETUP_PER_CPU_AREA 103 def_bool y if SPARC64 104 105config NEED_PER_CPU_EMBED_FIRST_CHUNK 106 def_bool y if SPARC64 107 108config NEED_PER_CPU_PAGE_FIRST_CHUNK 109 def_bool y if SPARC64 110 111config MMU 112 bool 113 default y 114 115config HIGHMEM 116 bool 117 default y if SPARC32 118 119config ZONE_DMA 120 bool 121 default y if SPARC32 122 123config NEED_DMA_MAP_STATE 124 def_bool y 125 126config NEED_SG_DMA_LENGTH 127 def_bool y 128 129config GENERIC_ISA_DMA 130 bool 131 default y if SPARC32 132 133config GENERIC_GPIO 134 bool 135 help 136 Generic GPIO API support 137 138config ARCH_NO_VIRT_TO_BUS 139 def_bool y 140 141config ARCH_SUPPORTS_DEBUG_PAGEALLOC 142 def_bool y if SPARC64 143 144source "init/Kconfig" 145 146source "kernel/Kconfig.freezer" 147 148menu "Processor type and features" 149 150config SMP 151 bool "Symmetric multi-processing support (does not work on sun4/sun4c)" 152 ---help--- 153 This enables support for systems with more than one CPU. If you have 154 a system with only one CPU, say N. If you have a system with more 155 than one CPU, say Y. 156 157 If you say N here, the kernel will run on single and multiprocessor 158 machines, but will use only one CPU of a multiprocessor machine. If 159 you say Y here, the kernel will run on many, but not all, 160 singleprocessor machines. On a singleprocessor machine, the kernel 161 will run faster if you say N here. 162 163 People using multiprocessor machines who say Y here should also say 164 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 165 Management" code will be disabled if you say Y here. 166 167 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 168 available at <http://www.tldp.org/docs.html#howto>. 169 170 If you don't know what to do here, say N. 171 172config NR_CPUS 173 int "Maximum number of CPUs" 174 depends on SMP 175 range 2 32 if SPARC32 176 range 2 1024 if SPARC64 177 default 32 if SPARC32 178 default 64 if SPARC64 179 180source kernel/Kconfig.hz 181 182config RWSEM_GENERIC_SPINLOCK 183 bool 184 default y if SPARC32 185 186config RWSEM_XCHGADD_ALGORITHM 187 bool 188 default y if SPARC64 189 190config GENERIC_HWEIGHT 191 bool 192 default y if !ULTRA_HAS_POPULATION_COUNT 193 194config GENERIC_CALIBRATE_DELAY 195 bool 196 default y 197 198config ARCH_MAY_HAVE_PC_FDC 199 bool 200 default y 201 202config EMULATED_CMPXCHG 203 bool 204 default y if SPARC32 205 help 206 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 207 is emulated, and therefore it is not completely atomic. 208 209# Makefile helpers 210config SPARC32_SMP 211 bool 212 default y 213 depends on SPARC32 && SMP 214 215config SPARC64_SMP 216 bool 217 default y 218 depends on SPARC64 && SMP 219 220config EARLYFB 221 bool "Support for early boot text console" 222 default y 223 depends on SPARC64 224 help 225 Say Y here to enable a faster early framebuffer boot console. 226 227choice 228 prompt "Kernel page size" if SPARC64 229 default SPARC64_PAGE_SIZE_8KB 230 231config SPARC64_PAGE_SIZE_8KB 232 bool "8KB" 233 help 234 This lets you select the page size of the kernel. 235 236 8KB and 64KB work quite well, since SPARC ELF sections 237 provide for up to 64KB alignment. 238 239 If you don't know what to do, choose 8KB. 240 241config SPARC64_PAGE_SIZE_64KB 242 bool "64KB" 243 244endchoice 245 246config SECCOMP 247 bool "Enable seccomp to safely compute untrusted bytecode" 248 depends on SPARC64 && PROC_FS 249 default y 250 help 251 This kernel feature is useful for number crunching applications 252 that may need to compute untrusted bytecode during their 253 execution. By using pipes or other transports made available to 254 the process as file descriptors supporting the read/write 255 syscalls, it's possible to isolate those applications in 256 their own address space using seccomp. Once seccomp is 257 enabled via /proc/<pid>/seccomp, it cannot be disabled 258 and the task is only allowed to execute a few safe syscalls 259 defined by each seccomp mode. 260 261 If unsure, say Y. Only embedded should say N here. 262 263config HOTPLUG_CPU 264 bool "Support for hot-pluggable CPUs" 265 depends on SPARC64 && SMP 266 select HOTPLUG 267 help 268 Say Y here to experiment with turning CPUs off and on. CPUs 269 can be controlled through /sys/devices/system/cpu/cpu#. 270 Say N if you want to disable CPU hotplug. 271 272source "kernel/time/Kconfig" 273 274if SPARC64 275source "drivers/cpufreq/Kconfig" 276 277config US3_FREQ 278 tristate "UltraSPARC-III CPU Frequency driver" 279 depends on CPU_FREQ 280 select CPU_FREQ_TABLE 281 help 282 This adds the CPUFreq driver for UltraSPARC-III processors. 283 284 For details, take a look at <file:Documentation/cpu-freq>. 285 286 If in doubt, say N. 287 288config US2E_FREQ 289 tristate "UltraSPARC-IIe CPU Frequency driver" 290 depends on CPU_FREQ 291 select CPU_FREQ_TABLE 292 help 293 This adds the CPUFreq driver for UltraSPARC-IIe processors. 294 295 For details, take a look at <file:Documentation/cpu-freq>. 296 297 If in doubt, say N. 298 299endif 300 301config US3_MC 302 tristate "UltraSPARC-III Memory Controller driver" 303 depends on SPARC64 304 default y 305 help 306 This adds a driver for the UltraSPARC-III memory controller. 307 Loading this driver allows exact mnemonic strings to be 308 printed in the event of a memory error, so that the faulty DIMM 309 on the motherboard can be matched to the error. 310 311 If in doubt, say Y, as this information can be very useful. 312 313# Global things across all Sun machines. 314config GENERIC_LOCKBREAK 315 bool 316 default y 317 depends on SPARC64 && SMP && PREEMPT 318 319choice 320 prompt "SPARC64 Huge TLB Page Size" 321 depends on SPARC64 && HUGETLB_PAGE 322 default HUGETLB_PAGE_SIZE_4MB 323 324config HUGETLB_PAGE_SIZE_4MB 325 bool "4MB" 326 327config HUGETLB_PAGE_SIZE_512K 328 bool "512K" 329 330config HUGETLB_PAGE_SIZE_64K 331 depends on !SPARC64_PAGE_SIZE_64KB 332 bool "64K" 333 334endchoice 335 336config NUMA 337 bool "NUMA support" 338 depends on SPARC64 && SMP 339 340config NODES_SHIFT 341 int 342 default "4" 343 depends on NEED_MULTIPLE_NODES 344 345# Some NUMA nodes have memory ranges that span 346# other nodes. Even though a pfn is valid and 347# between a node's start and end pfns, it may not 348# reside on that node. See memmap_init_zone() 349# for details. 350config NODES_SPAN_OTHER_NODES 351 def_bool y 352 depends on NEED_MULTIPLE_NODES 353 354config ARCH_POPULATES_NODE_MAP 355 def_bool y if SPARC64 356 357config ARCH_SELECT_MEMORY_MODEL 358 def_bool y if SPARC64 359 360config ARCH_SPARSEMEM_ENABLE 361 def_bool y if SPARC64 362 select SPARSEMEM_VMEMMAP_ENABLE 363 364config ARCH_SPARSEMEM_DEFAULT 365 def_bool y if SPARC64 366 367source "mm/Kconfig" 368 369config SCHED_SMT 370 bool "SMT (Hyperthreading) scheduler support" 371 depends on SPARC64 && SMP 372 default y 373 help 374 SMT scheduler support improves the CPU scheduler's decision making 375 when dealing with SPARC cpus at a cost of slightly increased overhead 376 in some places. If unsure say N here. 377 378config SCHED_MC 379 bool "Multi-core scheduler support" 380 depends on SPARC64 && SMP 381 default y 382 help 383 Multi-core scheduler support improves the CPU scheduler's decision 384 making when dealing with multi-core CPU chips at a cost of slightly 385 increased overhead in some places. If unsure say N here. 386 387if SPARC64 388source "kernel/Kconfig.preempt" 389endif 390 391config CMDLINE_BOOL 392 bool "Default bootloader kernel arguments" 393 depends on SPARC64 394 395config CMDLINE 396 string "Initial kernel command string" 397 depends on CMDLINE_BOOL 398 default "console=ttyS0,9600 root=/dev/sda1" 399 help 400 Say Y here if you want to be able to pass default arguments to 401 the kernel. This will be overridden by the bootloader, if you 402 use one (such as SILO). This is most useful if you want to boot 403 a kernel from TFTP, and want default options to be available 404 with having them passed on the command line. 405 406 NOTE: This option WILL override the PROM bootargs setting! 407 408config SUN_PM 409 bool 410 default y if SPARC32 411 help 412 Enable power management and CPU standby features on supported 413 SPARC platforms. 414 415config SPARC_LED 416 tristate "Sun4m LED driver" 417 depends on SPARC32 418 help 419 This driver toggles the front-panel LED on sun4m systems 420 in a user-specifiable manner. Its state can be probed 421 by reading /proc/led and its blinking mode can be changed 422 via writes to /proc/led 423 424config SERIAL_CONSOLE 425 bool 426 depends on SPARC32 427 default y 428 ---help--- 429 If you say Y here, it will be possible to use a serial port as the 430 system console (the system console is the device which receives all 431 kernel messages and warnings and which allows logins in single user 432 mode). This could be useful if some terminal or printer is connected 433 to that serial port. 434 435 Even if you say Y here, the currently visible virtual console 436 (/dev/tty0) will still be used as the system console by default, but 437 you can alter that using a kernel command line option such as 438 "console=ttyS1". (Try "man bootparam" or see the documentation of 439 your boot loader (silo) about how to pass options to the kernel at 440 boot time.) 441 442 If you don't have a graphics card installed and you say Y here, the 443 kernel will automatically use the first serial line, /dev/ttyS0, as 444 system console. 445 446 If unsure, say N. 447 448config SPARC_LEON 449 bool "Sparc Leon processor family" 450 depends on SPARC32 451 ---help--- 452 If you say Y here if you are running on a SPARC-LEON processor. 453 The LEON processor is a synthesizable VHDL model of the 454 SPARC-v8 standard. LEON is part of the GRLIB collection of 455 IP cores that are distributed under GPL. GRLIB can be downloaded 456 from www.gaisler.com. You can download a sparc-linux cross-compilation 457 toolchain at www.gaisler.com. 458 459if SPARC_LEON 460menu "U-Boot options" 461 462config UBOOT_LOAD_ADDR 463 hex "uImage Load Address" 464 default 0x40004000 465 ---help--- 466 U-Boot kernel load address, the address in physical address space 467 where u-boot will place the Linux kernel before booting it. 468 This address is normally the base address of main memory + 0x4000. 469 470config UBOOT_FLASH_ADDR 471 hex "uImage.o Load Address" 472 default 0x00080000 473 ---help--- 474 Optional setting only affecting the uImage.o ELF-image used to 475 download the uImage file to the target using a ELF-loader other than 476 U-Boot. It may for example be used to download an uImage to FLASH with 477 the GRMON utility before even starting u-boot. 478 479config UBOOT_ENTRY_ADDR 480 hex "uImage Entry Address" 481 default 0xf0004000 482 ---help--- 483 Do not change this unless you know what you're doing. This is 484 hardcoded by the SPARC32 and LEON port. 485 486 This is the virtual address u-boot jumps to when booting the Linux 487 Kernel. 488 489endmenu 490endif 491 492endmenu 493 494menu "Bus options (PCI etc.)" 495config SBUS 496 bool 497 default y 498 499config SBUSCHAR 500 bool 501 default y 502 503config SUN_LDOMS 504 bool "Sun Logical Domains support" 505 depends on SPARC64 506 help 507 Say Y here is you want to support virtual devices via 508 Logical Domains. 509 510config PCI 511 bool "Support for PCI and PS/2 keyboard/mouse" 512 help 513 Find out whether your system includes a PCI bus. PCI is the name of 514 a bus system, i.e. the way the CPU talks to the other stuff inside 515 your box. If you say Y here, the kernel will include drivers and 516 infrastructure code to support PCI bus devices. 517 518 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 519 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 520 All of these platforms are extremely obscure, so say N if unsure. 521 522config PCI_DOMAINS 523 def_bool PCI if SPARC64 524 525config PCI_SYSCALL 526 def_bool PCI 527 528config PCIC_PCI 529 bool 530 depends on PCI && SPARC32 && !SPARC_LEON 531 default y 532 533config LEON_PCI 534 bool 535 depends on PCI && SPARC_LEON 536 default y 537 538config GRPCI2 539 bool "GRPCI2 Host Bridge Support" 540 depends on LEON_PCI 541 default y 542 help 543 Say Y here to include the GRPCI2 Host Bridge Driver. 544 545source "drivers/pci/Kconfig" 546 547source "drivers/pcmcia/Kconfig" 548 549config SUN_OPENPROMFS 550 tristate "Openprom tree appears in /proc/openprom" 551 help 552 If you say Y, the OpenPROM device tree will be available as a 553 virtual file system, which you can mount to /proc/openprom by "mount 554 -t openpromfs none /proc/openprom". 555 556 To compile the /proc/openprom support as a module, choose M here: the 557 module will be called openpromfs. 558 559 Only choose N if you know in advance that you will not need to modify 560 OpenPROM settings on the running system. 561 562# Makefile helpers 563config SPARC32_PCI 564 bool 565 default y 566 depends on SPARC32 && PCI 567 568config SPARC64_PCI 569 bool 570 default y 571 depends on SPARC64 && PCI 572 573endmenu 574 575menu "Executable file formats" 576 577source "fs/Kconfig.binfmt" 578 579config COMPAT 580 bool 581 depends on SPARC64 582 default y 583 select COMPAT_BINFMT_ELF 584 585config SYSVIPC_COMPAT 586 bool 587 depends on COMPAT && SYSVIPC 588 default y 589 590endmenu 591 592source "net/Kconfig" 593 594source "drivers/Kconfig" 595 596source "drivers/sbus/char/Kconfig" 597 598source "fs/Kconfig" 599 600source "arch/sparc/Kconfig.debug" 601 602source "security/Kconfig" 603 604source "crypto/Kconfig" 605 606source "lib/Kconfig" 607