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 RTC_CLASS 26 select RTC_DRV_M48T59 27 select RTC_SYSTOHC 28 select HAVE_DMA_API_DEBUG 29 select HAVE_ARCH_JUMP_LABEL if SPARC64 30 select GENERIC_IRQ_SHOW 31 select ARCH_WANT_IPC_PARSE_VERSION 32 select GENERIC_PCI_IOMAP 33 select HAVE_NMI_WATCHDOG if SPARC64 34 select HAVE_CBPF_JIT if SPARC32 35 select HAVE_EBPF_JIT if SPARC64 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 select CPU_NO_EFFICIENT_FFS 46 select LOCKDEP_SMALL if LOCKDEP 47 select ARCH_WANT_RELAX_ORDER 48 49config SPARC32 50 def_bool !64BIT 51 select GENERIC_ATOMIC64 52 select CLZ_TAB 53 select HAVE_UID16 54 select OLD_SIGACTION 55 56config SPARC64 57 def_bool 64BIT 58 select HAVE_FUNCTION_TRACER 59 select HAVE_FUNCTION_GRAPH_TRACER 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 select HAVE_NMI 85 select HAVE_REGS_AND_STACK_ACCESS_API 86 select ARCH_USE_QUEUED_RWLOCKS 87 select ARCH_USE_QUEUED_SPINLOCKS 88 89config ARCH_DEFCONFIG 90 string 91 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 92 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 93 94config ARCH_PROC_KCORE_TEXT 95 def_bool y 96 97config CPU_BIG_ENDIAN 98 def_bool y 99 100config ARCH_ATU 101 bool 102 default y if SPARC64 103 104config ARCH_DMA_ADDR_T_64BIT 105 bool 106 default y if ARCH_ATU 107 108config IOMMU_HELPER 109 bool 110 default y if SPARC64 111 112config STACKTRACE_SUPPORT 113 bool 114 default y if SPARC64 115 116config LOCKDEP_SUPPORT 117 bool 118 default y if SPARC64 119 120config ARCH_HIBERNATION_POSSIBLE 121 def_bool y if SPARC64 122 123config AUDIT_ARCH 124 bool 125 default y 126 127config HAVE_SETUP_PER_CPU_AREA 128 def_bool y if SPARC64 129 130config NEED_PER_CPU_EMBED_FIRST_CHUNK 131 def_bool y if SPARC64 132 133config NEED_PER_CPU_PAGE_FIRST_CHUNK 134 def_bool y if SPARC64 135 136config MMU 137 bool 138 default y 139 140config HIGHMEM 141 bool 142 default y if SPARC32 143 144config ZONE_DMA 145 bool 146 default y if SPARC32 147 148config NEED_DMA_MAP_STATE 149 def_bool y 150 151config NEED_SG_DMA_LENGTH 152 def_bool y 153 154config GENERIC_ISA_DMA 155 bool 156 default y if SPARC32 157 158config ARCH_SUPPORTS_DEBUG_PAGEALLOC 159 def_bool y if SPARC64 160 161config PGTABLE_LEVELS 162 default 4 if 64BIT 163 default 3 164 165config ARCH_SUPPORTS_UPROBES 166 def_bool y if SPARC64 167 168source "init/Kconfig" 169 170source "kernel/Kconfig.freezer" 171 172menu "Processor type and features" 173 174config SMP 175 bool "Symmetric multi-processing support" 176 ---help--- 177 This enables support for systems with more than one CPU. If you have 178 a system with only one CPU, say N. If you have a system with more 179 than one CPU, say Y. 180 181 If you say N here, the kernel will run on uni- and multiprocessor 182 machines, but will use only one CPU of a multiprocessor machine. If 183 you say Y here, the kernel will run on many, but not all, 184 uniprocessor machines. On a uniprocessor machine, the kernel 185 will run faster if you say N here. 186 187 People using multiprocessor machines who say Y here should also say 188 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 189 Management" code will be disabled if you say Y here. 190 191 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 192 available at <http://www.tldp.org/docs.html#howto>. 193 194 If you don't know what to do here, say N. 195 196config NR_CPUS 197 int "Maximum number of CPUs" 198 depends on SMP 199 range 2 32 if SPARC32 200 range 2 4096 if SPARC64 201 default 32 if SPARC32 202 default 4096 if SPARC64 203 204source kernel/Kconfig.hz 205 206config RWSEM_GENERIC_SPINLOCK 207 bool 208 default y if SPARC32 209 210config RWSEM_XCHGADD_ALGORITHM 211 bool 212 default y if SPARC64 213 214config GENERIC_HWEIGHT 215 bool 216 default y 217 218config GENERIC_CALIBRATE_DELAY 219 bool 220 default y 221 222config ARCH_MAY_HAVE_PC_FDC 223 bool 224 default y 225 226config EMULATED_CMPXCHG 227 bool 228 default y if SPARC32 229 help 230 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 231 is emulated, and therefore it is not completely atomic. 232 233# Makefile helpers 234config SPARC32_SMP 235 bool 236 default y 237 depends on SPARC32 && SMP 238 239config SPARC64_SMP 240 bool 241 default y 242 depends on SPARC64 && SMP 243 244config EARLYFB 245 bool "Support for early boot text console" 246 default y 247 depends on SPARC64 248 help 249 Say Y here to enable a faster early framebuffer boot console. 250 251config SECCOMP 252 bool "Enable seccomp to safely compute untrusted bytecode" 253 depends on SPARC64 && PROC_FS 254 default y 255 help 256 This kernel feature is useful for number crunching applications 257 that may need to compute untrusted bytecode during their 258 execution. By using pipes or other transports made available to 259 the process as file descriptors supporting the read/write 260 syscalls, it's possible to isolate those applications in 261 their own address space using seccomp. Once seccomp is 262 enabled via /proc/<pid>/seccomp, it cannot be disabled 263 and the task is only allowed to execute a few safe syscalls 264 defined by each seccomp mode. 265 266 If unsure, say Y. Only embedded should say N here. 267 268config HOTPLUG_CPU 269 bool "Support for hot-pluggable CPUs" 270 depends on SPARC64 && SMP 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 276if SPARC64 277source "drivers/cpufreq/Kconfig" 278endif 279 280config US3_MC 281 tristate "UltraSPARC-III Memory Controller driver" 282 depends on SPARC64 283 default y 284 help 285 This adds a driver for the UltraSPARC-III memory controller. 286 Loading this driver allows exact mnemonic strings to be 287 printed in the event of a memory error, so that the faulty DIMM 288 on the motherboard can be matched to the error. 289 290 If in doubt, say Y, as this information can be very useful. 291 292# Global things across all Sun machines. 293config GENERIC_LOCKBREAK 294 bool 295 default y 296 depends on SPARC64 && SMP && PREEMPT 297 298config NUMA 299 bool "NUMA support" 300 depends on SPARC64 && SMP 301 302config NODES_SHIFT 303 int "Maximum NUMA Nodes (as a power of 2)" 304 range 4 5 if SPARC64 305 default "5" 306 depends on NEED_MULTIPLE_NODES 307 help 308 Specify the maximum number of NUMA Nodes available on the target 309 system. Increases memory reserved to accommodate various tables. 310 311# Some NUMA nodes have memory ranges that span 312# other nodes. Even though a pfn is valid and 313# between a node's start and end pfns, it may not 314# reside on that node. See memmap_init_zone() 315# for details. 316config NODES_SPAN_OTHER_NODES 317 def_bool y 318 depends on NEED_MULTIPLE_NODES 319 320config ARCH_SELECT_MEMORY_MODEL 321 def_bool y if SPARC64 322 323config ARCH_SPARSEMEM_ENABLE 324 def_bool y if SPARC64 325 select SPARSEMEM_VMEMMAP_ENABLE 326 327config ARCH_SPARSEMEM_DEFAULT 328 def_bool y if SPARC64 329 330config FORCE_MAX_ZONEORDER 331 int "Maximum zone order" 332 default "13" 333 help 334 The kernel memory allocator divides physically contiguous memory 335 blocks into "zones", where each zone is a power of two number of 336 pages. This option selects the largest power of two that the kernel 337 keeps in the memory allocator. If you need to allocate very large 338 blocks of physically contiguous memory, then you may need to 339 increase this value. 340 341 This config option is actually maximum order plus one. For example, 342 a value of 13 means that the largest free memory block is 2^12 pages. 343 344source "mm/Kconfig" 345 346if SPARC64 347source "kernel/power/Kconfig" 348endif 349 350config SCHED_SMT 351 bool "SMT (Hyperthreading) scheduler support" 352 depends on SPARC64 && SMP 353 default y 354 help 355 SMT scheduler support improves the CPU scheduler's decision making 356 when dealing with SPARC cpus at a cost of slightly increased overhead 357 in some places. If unsure say N here. 358 359config SCHED_MC 360 bool "Multi-core scheduler support" 361 depends on SPARC64 && SMP 362 default y 363 help 364 Multi-core scheduler support improves the CPU scheduler's decision 365 making when dealing with multi-core CPU chips at a cost of slightly 366 increased overhead in some places. If unsure say N here. 367 368source "kernel/Kconfig.preempt" 369 370config CMDLINE_BOOL 371 bool "Default bootloader kernel arguments" 372 depends on SPARC64 373 374config CMDLINE 375 string "Initial kernel command string" 376 depends on CMDLINE_BOOL 377 default "console=ttyS0,9600 root=/dev/sda1" 378 help 379 Say Y here if you want to be able to pass default arguments to 380 the kernel. This will be overridden by the bootloader, if you 381 use one (such as SILO). This is most useful if you want to boot 382 a kernel from TFTP, and want default options to be available 383 with having them passed on the command line. 384 385 NOTE: This option WILL override the PROM bootargs setting! 386 387config SUN_PM 388 bool 389 default y if SPARC32 390 help 391 Enable power management and CPU standby features on supported 392 SPARC platforms. 393 394config SPARC_LED 395 tristate "Sun4m LED driver" 396 depends on SPARC32 397 help 398 This driver toggles the front-panel LED on sun4m systems 399 in a user-specifiable manner. Its state can be probed 400 by reading /proc/led and its blinking mode can be changed 401 via writes to /proc/led 402 403config SERIAL_CONSOLE 404 bool 405 depends on SPARC32 406 default y 407 ---help--- 408 If you say Y here, it will be possible to use a serial port as the 409 system console (the system console is the device which receives all 410 kernel messages and warnings and which allows logins in single user 411 mode). This could be useful if some terminal or printer is connected 412 to that serial port. 413 414 Even if you say Y here, the currently visible virtual console 415 (/dev/tty0) will still be used as the system console by default, but 416 you can alter that using a kernel command line option such as 417 "console=ttyS1". (Try "man bootparam" or see the documentation of 418 your boot loader (silo) about how to pass options to the kernel at 419 boot time.) 420 421 If you don't have a graphics card installed and you say Y here, the 422 kernel will automatically use the first serial line, /dev/ttyS0, as 423 system console. 424 425 If unsure, say N. 426 427config SPARC_LEON 428 bool "Sparc Leon processor family" 429 depends on SPARC32 430 select USB_EHCI_BIG_ENDIAN_MMIO 431 select USB_EHCI_BIG_ENDIAN_DESC 432 ---help--- 433 If you say Y here if you are running on a SPARC-LEON processor. 434 The LEON processor is a synthesizable VHDL model of the 435 SPARC-v8 standard. LEON is part of the GRLIB collection of 436 IP cores that are distributed under GPL. GRLIB can be downloaded 437 from www.gaisler.com. You can download a sparc-linux cross-compilation 438 toolchain at www.gaisler.com. 439 440if SPARC_LEON 441menu "U-Boot options" 442 443config UBOOT_LOAD_ADDR 444 hex "uImage Load Address" 445 default 0x40004000 446 ---help--- 447 U-Boot kernel load address, the address in physical address space 448 where u-boot will place the Linux kernel before booting it. 449 This address is normally the base address of main memory + 0x4000. 450 451config UBOOT_FLASH_ADDR 452 hex "uImage.o Load Address" 453 default 0x00080000 454 ---help--- 455 Optional setting only affecting the uImage.o ELF-image used to 456 download the uImage file to the target using a ELF-loader other than 457 U-Boot. It may for example be used to download an uImage to FLASH with 458 the GRMON utility before even starting u-boot. 459 460config UBOOT_ENTRY_ADDR 461 hex "uImage Entry Address" 462 default 0xf0004000 463 ---help--- 464 Do not change this unless you know what you're doing. This is 465 hardcoded by the SPARC32 and LEON port. 466 467 This is the virtual address u-boot jumps to when booting the Linux 468 Kernel. 469 470endmenu 471endif 472 473endmenu 474 475menu "Bus options (PCI etc.)" 476config SBUS 477 bool 478 default y 479 480config SBUSCHAR 481 bool 482 default y 483 484config SUN_LDOMS 485 bool "Sun Logical Domains support" 486 depends on SPARC64 487 help 488 Say Y here is you want to support virtual devices via 489 Logical Domains. 490 491config PCI 492 bool "Support for PCI and PS/2 keyboard/mouse" 493 help 494 Find out whether your system includes a PCI bus. PCI is the name of 495 a bus system, i.e. the way the CPU talks to the other stuff inside 496 your box. If you say Y here, the kernel will include drivers and 497 infrastructure code to support PCI bus devices. 498 499 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 500 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 501 All of these platforms are extremely obscure, so say N if unsure. 502 503config PCI_DOMAINS 504 def_bool PCI if SPARC64 505 506config PCI_SYSCALL 507 def_bool PCI 508 509config PCIC_PCI 510 bool 511 depends on PCI && SPARC32 && !SPARC_LEON 512 default y 513 514config LEON_PCI 515 bool 516 depends on PCI && SPARC_LEON 517 default y 518 519config SPARC_GRPCI1 520 bool "GRPCI Host Bridge Support" 521 depends on LEON_PCI 522 default y 523 help 524 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 525 PCI host controller is typically found in GRLIB SPARC32/LEON 526 systems. The driver has one property (all_pci_errors) controlled 527 from the bootloader that makes the GRPCI to generate interrupts 528 on detected PCI Parity and System errors. 529 530config SPARC_GRPCI2 531 bool "GRPCI2 Host Bridge Support" 532 depends on LEON_PCI 533 default y 534 help 535 Say Y here to include the GRPCI2 Host Bridge Driver. 536 537source "drivers/pci/Kconfig" 538 539source "drivers/pcmcia/Kconfig" 540 541config SUN_OPENPROMFS 542 tristate "Openprom tree appears in /proc/openprom" 543 help 544 If you say Y, the OpenPROM device tree will be available as a 545 virtual file system, which you can mount to /proc/openprom by "mount 546 -t openpromfs none /proc/openprom". 547 548 To compile the /proc/openprom support as a module, choose M here: the 549 module will be called openpromfs. 550 551 Only choose N if you know in advance that you will not need to modify 552 OpenPROM settings on the running system. 553 554# Makefile helpers 555config SPARC64_PCI 556 bool 557 default y 558 depends on SPARC64 && PCI 559 560config SPARC64_PCI_MSI 561 bool 562 default y 563 depends on SPARC64_PCI && PCI_MSI 564 565endmenu 566 567menu "Executable file formats" 568 569source "fs/Kconfig.binfmt" 570 571config COMPAT 572 bool 573 depends on SPARC64 574 default y 575 select COMPAT_BINFMT_ELF 576 select HAVE_UID16 577 select ARCH_WANT_OLD_COMPAT_IPC 578 select COMPAT_OLD_SIGACTION 579 580config SYSVIPC_COMPAT 581 bool 582 depends on COMPAT && SYSVIPC 583 default y 584 585endmenu 586 587source "net/Kconfig" 588 589source "drivers/Kconfig" 590 591source "drivers/sbus/char/Kconfig" 592 593source "fs/Kconfig" 594 595source "arch/sparc/Kconfig.debug" 596 597source "security/Kconfig" 598 599source "crypto/Kconfig" 600 601source "lib/Kconfig" 602