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 select GENERIC_PCI_IOMAP 32 33config SPARC32 34 def_bool !64BIT 35 select GENERIC_ATOMIC64 36 37config SPARC64 38 def_bool 64BIT 39 select ARCH_SUPPORTS_MSI 40 select HAVE_FUNCTION_TRACER 41 select HAVE_FUNCTION_GRAPH_TRACER 42 select HAVE_FUNCTION_GRAPH_FP_TEST 43 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 44 select HAVE_KRETPROBES 45 select HAVE_KPROBES 46 select HAVE_RCU_TABLE_FREE if SMP 47 select HAVE_MEMBLOCK 48 select HAVE_MEMBLOCK_NODE_MAP 49 select HAVE_SYSCALL_WRAPPERS 50 select HAVE_DYNAMIC_FTRACE 51 select HAVE_FTRACE_MCOUNT_RECORD 52 select HAVE_SYSCALL_TRACEPOINTS 53 select RTC_DRV_CMOS 54 select RTC_DRV_BQ4802 55 select RTC_DRV_SUN4V 56 select RTC_DRV_STARFIRE 57 select HAVE_PERF_EVENTS 58 select PERF_USE_VMALLOC 59 select IRQ_PREFLOW_FASTEOI 60 select ARCH_HAVE_NMI_SAFE_CMPXCHG 61 select HAVE_C_RECORDMCOUNT 62 63config ARCH_DEFCONFIG 64 string 65 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 66 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 67 68# CONFIG_BITS can be used at source level to get 32/64 bits 69config BITS 70 int 71 default 32 if SPARC32 72 default 64 if SPARC64 73 74config ARCH_USES_GETTIMEOFFSET 75 bool 76 default y if SPARC32 77 78config GENERIC_CMOS_UPDATE 79 bool 80 default y 81 82config GENERIC_CLOCKEVENTS 83 bool 84 default y if SPARC64 85 86config IOMMU_HELPER 87 bool 88 default y if SPARC64 89 90config STACKTRACE_SUPPORT 91 bool 92 default y if SPARC64 93 94config LOCKDEP_SUPPORT 95 bool 96 default y if SPARC64 97 98config HAVE_LATENCYTOP_SUPPORT 99 bool 100 default y if SPARC64 101 102config AUDIT_ARCH 103 bool 104 default y 105 106config HAVE_SETUP_PER_CPU_AREA 107 def_bool y if SPARC64 108 109config NEED_PER_CPU_EMBED_FIRST_CHUNK 110 def_bool y if SPARC64 111 112config NEED_PER_CPU_PAGE_FIRST_CHUNK 113 def_bool y if SPARC64 114 115config MMU 116 bool 117 default y 118 119config HIGHMEM 120 bool 121 default y if SPARC32 122 123config ZONE_DMA 124 bool 125 default y if SPARC32 126 127config NEED_DMA_MAP_STATE 128 def_bool y 129 130config NEED_SG_DMA_LENGTH 131 def_bool y 132 133config GENERIC_ISA_DMA 134 bool 135 default y if SPARC32 136 137config GENERIC_GPIO 138 bool 139 help 140 Generic GPIO API support 141 142config ARCH_NO_VIRT_TO_BUS 143 def_bool y 144 145config ARCH_SUPPORTS_DEBUG_PAGEALLOC 146 def_bool y if SPARC64 147 148source "init/Kconfig" 149 150source "kernel/Kconfig.freezer" 151 152menu "Processor type and features" 153 154config SMP 155 bool "Symmetric multi-processing support (does not work on sun4/sun4c)" 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 single 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 singleprocessor machines. On a singleprocessor 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 if !ULTRA_HAS_POPULATION_COUNT 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 231choice 232 prompt "Kernel page size" if SPARC64 233 default SPARC64_PAGE_SIZE_8KB 234 235config SPARC64_PAGE_SIZE_8KB 236 bool "8KB" 237 help 238 This lets you select the page size of the kernel. 239 240 8KB and 64KB work quite well, since SPARC ELF sections 241 provide for up to 64KB alignment. 242 243 If you don't know what to do, choose 8KB. 244 245config SPARC64_PAGE_SIZE_64KB 246 bool "64KB" 247 248endchoice 249 250config SECCOMP 251 bool "Enable seccomp to safely compute untrusted bytecode" 252 depends on SPARC64 && PROC_FS 253 default y 254 help 255 This kernel feature is useful for number crunching applications 256 that may need to compute untrusted bytecode during their 257 execution. By using pipes or other transports made available to 258 the process as file descriptors supporting the read/write 259 syscalls, it's possible to isolate those applications in 260 their own address space using seccomp. Once seccomp is 261 enabled via /proc/<pid>/seccomp, it cannot be disabled 262 and the task is only allowed to execute a few safe syscalls 263 defined by each seccomp mode. 264 265 If unsure, say Y. Only embedded should say N here. 266 267config HOTPLUG_CPU 268 bool "Support for hot-pluggable CPUs" 269 depends on SPARC64 && SMP 270 select HOTPLUG 271 help 272 Say Y here to experiment with turning CPUs off and on. CPUs 273 can be controlled through /sys/devices/system/cpu/cpu#. 274 Say N if you want to disable CPU hotplug. 275 276source "kernel/time/Kconfig" 277 278if SPARC64 279source "drivers/cpufreq/Kconfig" 280 281config US3_FREQ 282 tristate "UltraSPARC-III CPU Frequency driver" 283 depends on CPU_FREQ 284 select CPU_FREQ_TABLE 285 help 286 This adds the CPUFreq driver for UltraSPARC-III processors. 287 288 For details, take a look at <file:Documentation/cpu-freq>. 289 290 If in doubt, say N. 291 292config US2E_FREQ 293 tristate "UltraSPARC-IIe CPU Frequency driver" 294 depends on CPU_FREQ 295 select CPU_FREQ_TABLE 296 help 297 This adds the CPUFreq driver for UltraSPARC-IIe processors. 298 299 For details, take a look at <file:Documentation/cpu-freq>. 300 301 If in doubt, say N. 302 303endif 304 305config US3_MC 306 tristate "UltraSPARC-III Memory Controller driver" 307 depends on SPARC64 308 default y 309 help 310 This adds a driver for the UltraSPARC-III memory controller. 311 Loading this driver allows exact mnemonic strings to be 312 printed in the event of a memory error, so that the faulty DIMM 313 on the motherboard can be matched to the error. 314 315 If in doubt, say Y, as this information can be very useful. 316 317# Global things across all Sun machines. 318config GENERIC_LOCKBREAK 319 bool 320 default y 321 depends on SPARC64 && SMP && PREEMPT 322 323choice 324 prompt "SPARC64 Huge TLB Page Size" 325 depends on SPARC64 && HUGETLB_PAGE 326 default HUGETLB_PAGE_SIZE_4MB 327 328config HUGETLB_PAGE_SIZE_4MB 329 bool "4MB" 330 331config HUGETLB_PAGE_SIZE_512K 332 bool "512K" 333 334config HUGETLB_PAGE_SIZE_64K 335 depends on !SPARC64_PAGE_SIZE_64KB 336 bool "64K" 337 338endchoice 339 340config NUMA 341 bool "NUMA support" 342 depends on SPARC64 && SMP 343 344config NODES_SHIFT 345 int 346 default "4" 347 depends on NEED_MULTIPLE_NODES 348 349# Some NUMA nodes have memory ranges that span 350# other nodes. Even though a pfn is valid and 351# between a node's start and end pfns, it may not 352# reside on that node. See memmap_init_zone() 353# for details. 354config NODES_SPAN_OTHER_NODES 355 def_bool y 356 depends on NEED_MULTIPLE_NODES 357 358config ARCH_SELECT_MEMORY_MODEL 359 def_bool y if SPARC64 360 361config ARCH_SPARSEMEM_ENABLE 362 def_bool y if SPARC64 363 select SPARSEMEM_VMEMMAP_ENABLE 364 365config ARCH_SPARSEMEM_DEFAULT 366 def_bool y if SPARC64 367 368source "mm/Kconfig" 369 370config SCHED_SMT 371 bool "SMT (Hyperthreading) scheduler support" 372 depends on SPARC64 && SMP 373 default y 374 help 375 SMT scheduler support improves the CPU scheduler's decision making 376 when dealing with SPARC cpus at a cost of slightly increased overhead 377 in some places. If unsure say N here. 378 379config SCHED_MC 380 bool "Multi-core scheduler support" 381 depends on SPARC64 && SMP 382 default y 383 help 384 Multi-core scheduler support improves the CPU scheduler's decision 385 making when dealing with multi-core CPU chips at a cost of slightly 386 increased overhead in some places. If unsure say N here. 387 388source "kernel/Kconfig.preempt" 389 390config CMDLINE_BOOL 391 bool "Default bootloader kernel arguments" 392 depends on SPARC64 393 394config CMDLINE 395 string "Initial kernel command string" 396 depends on CMDLINE_BOOL 397 default "console=ttyS0,9600 root=/dev/sda1" 398 help 399 Say Y here if you want to be able to pass default arguments to 400 the kernel. This will be overridden by the bootloader, if you 401 use one (such as SILO). This is most useful if you want to boot 402 a kernel from TFTP, and want default options to be available 403 with having them passed on the command line. 404 405 NOTE: This option WILL override the PROM bootargs setting! 406 407config SUN_PM 408 bool 409 default y if SPARC32 410 help 411 Enable power management and CPU standby features on supported 412 SPARC platforms. 413 414config SPARC_LED 415 tristate "Sun4m LED driver" 416 depends on SPARC32 417 help 418 This driver toggles the front-panel LED on sun4m systems 419 in a user-specifiable manner. Its state can be probed 420 by reading /proc/led and its blinking mode can be changed 421 via writes to /proc/led 422 423config SERIAL_CONSOLE 424 bool 425 depends on SPARC32 426 default y 427 ---help--- 428 If you say Y here, it will be possible to use a serial port as the 429 system console (the system console is the device which receives all 430 kernel messages and warnings and which allows logins in single user 431 mode). This could be useful if some terminal or printer is connected 432 to that serial port. 433 434 Even if you say Y here, the currently visible virtual console 435 (/dev/tty0) will still be used as the system console by default, but 436 you can alter that using a kernel command line option such as 437 "console=ttyS1". (Try "man bootparam" or see the documentation of 438 your boot loader (silo) about how to pass options to the kernel at 439 boot time.) 440 441 If you don't have a graphics card installed and you say Y here, the 442 kernel will automatically use the first serial line, /dev/ttyS0, as 443 system console. 444 445 If unsure, say N. 446 447config SPARC_LEON 448 bool "Sparc Leon processor family" 449 depends on SPARC32 450 ---help--- 451 If you say Y here if you are running on a SPARC-LEON processor. 452 The LEON processor is a synthesizable VHDL model of the 453 SPARC-v8 standard. LEON is part of the GRLIB collection of 454 IP cores that are distributed under GPL. GRLIB can be downloaded 455 from www.gaisler.com. You can download a sparc-linux cross-compilation 456 toolchain at www.gaisler.com. 457 458if SPARC_LEON 459menu "U-Boot options" 460 461config UBOOT_LOAD_ADDR 462 hex "uImage Load Address" 463 default 0x40004000 464 ---help--- 465 U-Boot kernel load address, the address in physical address space 466 where u-boot will place the Linux kernel before booting it. 467 This address is normally the base address of main memory + 0x4000. 468 469config UBOOT_FLASH_ADDR 470 hex "uImage.o Load Address" 471 default 0x00080000 472 ---help--- 473 Optional setting only affecting the uImage.o ELF-image used to 474 download the uImage file to the target using a ELF-loader other than 475 U-Boot. It may for example be used to download an uImage to FLASH with 476 the GRMON utility before even starting u-boot. 477 478config UBOOT_ENTRY_ADDR 479 hex "uImage Entry Address" 480 default 0xf0004000 481 ---help--- 482 Do not change this unless you know what you're doing. This is 483 hardcoded by the SPARC32 and LEON port. 484 485 This is the virtual address u-boot jumps to when booting the Linux 486 Kernel. 487 488endmenu 489endif 490 491endmenu 492 493menu "Bus options (PCI etc.)" 494config SBUS 495 bool 496 default y 497 498config SBUSCHAR 499 bool 500 default y 501 502config SUN_LDOMS 503 bool "Sun Logical Domains support" 504 depends on SPARC64 505 help 506 Say Y here is you want to support virtual devices via 507 Logical Domains. 508 509config PCI 510 bool "Support for PCI and PS/2 keyboard/mouse" 511 help 512 Find out whether your system includes a PCI bus. PCI is the name of 513 a bus system, i.e. the way the CPU talks to the other stuff inside 514 your box. If you say Y here, the kernel will include drivers and 515 infrastructure code to support PCI bus devices. 516 517 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 518 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 519 All of these platforms are extremely obscure, so say N if unsure. 520 521config PCI_DOMAINS 522 def_bool PCI if SPARC64 523 524config PCI_SYSCALL 525 def_bool PCI 526 527config PCIC_PCI 528 bool 529 depends on PCI && SPARC32 && !SPARC_LEON 530 default y 531 532config LEON_PCI 533 bool 534 depends on PCI && SPARC_LEON 535 default y 536 537config GRPCI2 538 bool "GRPCI2 Host Bridge Support" 539 depends on LEON_PCI 540 default y 541 help 542 Say Y here to include the GRPCI2 Host Bridge Driver. 543 544source "drivers/pci/Kconfig" 545 546source "drivers/pcmcia/Kconfig" 547 548config SUN_OPENPROMFS 549 tristate "Openprom tree appears in /proc/openprom" 550 help 551 If you say Y, the OpenPROM device tree will be available as a 552 virtual file system, which you can mount to /proc/openprom by "mount 553 -t openpromfs none /proc/openprom". 554 555 To compile the /proc/openprom support as a module, choose M here: the 556 module will be called openpromfs. 557 558 Only choose N if you know in advance that you will not need to modify 559 OpenPROM settings on the running system. 560 561# Makefile helper 562config SPARC64_PCI 563 bool 564 default y 565 depends on SPARC64 && PCI 566 567endmenu 568 569menu "Executable file formats" 570 571source "fs/Kconfig.binfmt" 572 573config COMPAT 574 bool 575 depends on SPARC64 576 default y 577 select COMPAT_BINFMT_ELF 578 579config SYSVIPC_COMPAT 580 bool 581 depends on COMPAT && SYSVIPC 582 default y 583 584endmenu 585 586source "net/Kconfig" 587 588source "drivers/Kconfig" 589 590source "drivers/sbus/char/Kconfig" 591 592source "fs/Kconfig" 593 594source "arch/sparc/Kconfig.debug" 595 596source "security/Kconfig" 597 598source "crypto/Kconfig" 599 600source "lib/Kconfig" 601