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_ARCH_JUMP_LABEL if SPARC64 29 select GENERIC_IRQ_SHOW 30 select ARCH_WANT_IPC_PARSE_VERSION 31 select GENERIC_PCI_IOMAP 32 select HAVE_NMI_WATCHDOG if SPARC64 33 select HAVE_CBPF_JIT if SPARC32 34 select HAVE_EBPF_JIT if SPARC64 35 select HAVE_DEBUG_BUGVERBOSE 36 select GENERIC_SMP_IDLE_THREAD 37 select GENERIC_CLOCKEVENTS 38 select GENERIC_STRNCPY_FROM_USER 39 select GENERIC_STRNLEN_USER 40 select MODULES_USE_ELF_RELA 41 select ODD_RT_SIGACTION 42 select OLD_SIGSUSPEND 43 select ARCH_HAS_SG_CHAIN 44 select CPU_NO_EFFICIENT_FFS 45 select LOCKDEP_SMALL if LOCKDEP 46 select NEED_DMA_MAP_STATE 47 select NEED_SG_DMA_LENGTH 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 IOMMU_HELPER 72 select SPARSE_IRQ 73 select RTC_DRV_CMOS 74 select RTC_DRV_BQ4802 75 select RTC_DRV_SUN4V 76 select RTC_DRV_STARFIRE 77 select HAVE_PERF_EVENTS 78 select PERF_USE_VMALLOC 79 select IRQ_PREFLOW_FASTEOI 80 select ARCH_HAVE_NMI_SAFE_CMPXCHG 81 select HAVE_C_RECORDMCOUNT 82 select NO_BOOTMEM 83 select HAVE_ARCH_AUDITSYSCALL 84 select ARCH_SUPPORTS_ATOMIC_RMW 85 select HAVE_NMI 86 select HAVE_REGS_AND_STACK_ACCESS_API 87 select ARCH_USE_QUEUED_RWLOCKS 88 select ARCH_USE_QUEUED_SPINLOCKS 89 select GENERIC_TIME_VSYSCALL 90 select ARCH_CLOCKSOURCE_DATA 91 92config ARCH_DEFCONFIG 93 string 94 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 95 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 96 97config ARCH_PROC_KCORE_TEXT 98 def_bool y 99 100config CPU_BIG_ENDIAN 101 def_bool y 102 103config ARCH_ATU 104 bool 105 default y if SPARC64 106 107config STACKTRACE_SUPPORT 108 bool 109 default y if SPARC64 110 111config LOCKDEP_SUPPORT 112 bool 113 default y if SPARC64 114 115config ARCH_HIBERNATION_POSSIBLE 116 def_bool y if SPARC64 117 118config AUDIT_ARCH 119 bool 120 default y 121 122config HAVE_SETUP_PER_CPU_AREA 123 def_bool y if SPARC64 124 125config NEED_PER_CPU_EMBED_FIRST_CHUNK 126 def_bool y if SPARC64 127 128config NEED_PER_CPU_PAGE_FIRST_CHUNK 129 def_bool y if SPARC64 130 131config MMU 132 bool 133 default y 134 135config HIGHMEM 136 bool 137 default y if SPARC32 138 139config ZONE_DMA 140 bool 141 default y if SPARC32 142 143config GENERIC_ISA_DMA 144 bool 145 default y if SPARC32 146 147config ARCH_SUPPORTS_DEBUG_PAGEALLOC 148 def_bool y if SPARC64 149 150config PGTABLE_LEVELS 151 default 4 if 64BIT 152 default 3 153 154config ARCH_SUPPORTS_UPROBES 155 def_bool y if SPARC64 156 157source "init/Kconfig" 158 159source "kernel/Kconfig.freezer" 160 161menu "Processor type and features" 162 163config SMP 164 bool "Symmetric multi-processing support" 165 ---help--- 166 This enables support for systems with more than one CPU. If you have 167 a system with only one CPU, say N. If you have a system with more 168 than one CPU, say Y. 169 170 If you say N here, the kernel will run on uni- and multiprocessor 171 machines, but will use only one CPU of a multiprocessor machine. If 172 you say Y here, the kernel will run on many, but not all, 173 uniprocessor machines. On a uniprocessor machine, the kernel 174 will run faster if you say N here. 175 176 People using multiprocessor machines who say Y here should also say 177 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 178 Management" code will be disabled if you say Y here. 179 180 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 181 available at <http://www.tldp.org/docs.html#howto>. 182 183 If you don't know what to do here, say N. 184 185config NR_CPUS 186 int "Maximum number of CPUs" 187 depends on SMP 188 range 2 32 if SPARC32 189 range 2 4096 if SPARC64 190 default 32 if SPARC32 191 default 4096 if SPARC64 192 193source kernel/Kconfig.hz 194 195config RWSEM_GENERIC_SPINLOCK 196 bool 197 default y if SPARC32 198 199config RWSEM_XCHGADD_ALGORITHM 200 bool 201 default y if SPARC64 202 203config GENERIC_HWEIGHT 204 bool 205 default y 206 207config GENERIC_CALIBRATE_DELAY 208 bool 209 default y 210 211config ARCH_MAY_HAVE_PC_FDC 212 bool 213 default y 214 215config EMULATED_CMPXCHG 216 bool 217 default y if SPARC32 218 help 219 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 220 is emulated, and therefore it is not completely atomic. 221 222# Makefile helpers 223config SPARC32_SMP 224 bool 225 default y 226 depends on SPARC32 && SMP 227 228config SPARC64_SMP 229 bool 230 default y 231 depends on SPARC64 && SMP 232 233config EARLYFB 234 bool "Support for early boot text console" 235 default y 236 depends on SPARC64 237 help 238 Say Y here to enable a faster early framebuffer boot console. 239 240config SECCOMP 241 bool "Enable seccomp to safely compute untrusted bytecode" 242 depends on SPARC64 && PROC_FS 243 default y 244 help 245 This kernel feature is useful for number crunching applications 246 that may need to compute untrusted bytecode during their 247 execution. By using pipes or other transports made available to 248 the process as file descriptors supporting the read/write 249 syscalls, it's possible to isolate those applications in 250 their own address space using seccomp. Once seccomp is 251 enabled via /proc/<pid>/seccomp, it cannot be disabled 252 and the task is only allowed to execute a few safe syscalls 253 defined by each seccomp mode. 254 255 If unsure, say Y. Only embedded should say N here. 256 257config HOTPLUG_CPU 258 bool "Support for hot-pluggable CPUs" 259 depends on SPARC64 && SMP 260 help 261 Say Y here to experiment with turning CPUs off and on. CPUs 262 can be controlled through /sys/devices/system/cpu/cpu#. 263 Say N if you want to disable CPU hotplug. 264 265if SPARC64 266source "drivers/cpufreq/Kconfig" 267endif 268 269config US3_MC 270 tristate "UltraSPARC-III Memory Controller driver" 271 depends on SPARC64 272 default y 273 help 274 This adds a driver for the UltraSPARC-III memory controller. 275 Loading this driver allows exact mnemonic strings to be 276 printed in the event of a memory error, so that the faulty DIMM 277 on the motherboard can be matched to the error. 278 279 If in doubt, say Y, as this information can be very useful. 280 281# Global things across all Sun machines. 282config GENERIC_LOCKBREAK 283 bool 284 default y 285 depends on SPARC64 && SMP && PREEMPT 286 287config NUMA 288 bool "NUMA support" 289 depends on SPARC64 && SMP 290 291config NODES_SHIFT 292 int "Maximum NUMA Nodes (as a power of 2)" 293 range 4 5 if SPARC64 294 default "5" 295 depends on NEED_MULTIPLE_NODES 296 help 297 Specify the maximum number of NUMA Nodes available on the target 298 system. Increases memory reserved to accommodate various tables. 299 300# Some NUMA nodes have memory ranges that span 301# other nodes. Even though a pfn is valid and 302# between a node's start and end pfns, it may not 303# reside on that node. See memmap_init_zone() 304# for details. 305config NODES_SPAN_OTHER_NODES 306 def_bool y 307 depends on NEED_MULTIPLE_NODES 308 309config ARCH_SELECT_MEMORY_MODEL 310 def_bool y if SPARC64 311 312config ARCH_SPARSEMEM_ENABLE 313 def_bool y if SPARC64 314 select SPARSEMEM_VMEMMAP_ENABLE 315 316config ARCH_SPARSEMEM_DEFAULT 317 def_bool y if SPARC64 318 319config FORCE_MAX_ZONEORDER 320 int "Maximum zone order" 321 default "13" 322 help 323 The kernel memory allocator divides physically contiguous memory 324 blocks into "zones", where each zone is a power of two number of 325 pages. This option selects the largest power of two that the kernel 326 keeps in the memory allocator. If you need to allocate very large 327 blocks of physically contiguous memory, then you may need to 328 increase this value. 329 330 This config option is actually maximum order plus one. For example, 331 a value of 13 means that the largest free memory block is 2^12 pages. 332 333source "mm/Kconfig" 334 335if SPARC64 336source "kernel/power/Kconfig" 337endif 338 339config SCHED_SMT 340 bool "SMT (Hyperthreading) scheduler support" 341 depends on SPARC64 && SMP 342 default y 343 help 344 SMT scheduler support improves the CPU scheduler's decision making 345 when dealing with SPARC cpus at a cost of slightly increased overhead 346 in some places. If unsure say N here. 347 348config SCHED_MC 349 bool "Multi-core scheduler support" 350 depends on SPARC64 && SMP 351 default y 352 help 353 Multi-core scheduler support improves the CPU scheduler's decision 354 making when dealing with multi-core CPU chips at a cost of slightly 355 increased overhead in some places. If unsure say N here. 356 357source "kernel/Kconfig.preempt" 358 359config CMDLINE_BOOL 360 bool "Default bootloader kernel arguments" 361 depends on SPARC64 362 363config CMDLINE 364 string "Initial kernel command string" 365 depends on CMDLINE_BOOL 366 default "console=ttyS0,9600 root=/dev/sda1" 367 help 368 Say Y here if you want to be able to pass default arguments to 369 the kernel. This will be overridden by the bootloader, if you 370 use one (such as SILO). This is most useful if you want to boot 371 a kernel from TFTP, and want default options to be available 372 with having them passed on the command line. 373 374 NOTE: This option WILL override the PROM bootargs setting! 375 376config SUN_PM 377 bool 378 default y if SPARC32 379 help 380 Enable power management and CPU standby features on supported 381 SPARC platforms. 382 383config SPARC_LED 384 tristate "Sun4m LED driver" 385 depends on SPARC32 386 help 387 This driver toggles the front-panel LED on sun4m systems 388 in a user-specifiable manner. Its state can be probed 389 by reading /proc/led and its blinking mode can be changed 390 via writes to /proc/led 391 392config SERIAL_CONSOLE 393 bool 394 depends on SPARC32 395 default y 396 ---help--- 397 If you say Y here, it will be possible to use a serial port as the 398 system console (the system console is the device which receives all 399 kernel messages and warnings and which allows logins in single user 400 mode). This could be useful if some terminal or printer is connected 401 to that serial port. 402 403 Even if you say Y here, the currently visible virtual console 404 (/dev/tty0) will still be used as the system console by default, but 405 you can alter that using a kernel command line option such as 406 "console=ttyS1". (Try "man bootparam" or see the documentation of 407 your boot loader (silo) about how to pass options to the kernel at 408 boot time.) 409 410 If you don't have a graphics card installed and you say Y here, the 411 kernel will automatically use the first serial line, /dev/ttyS0, as 412 system console. 413 414 If unsure, say N. 415 416config SPARC_LEON 417 bool "Sparc Leon processor family" 418 depends on SPARC32 419 select USB_EHCI_BIG_ENDIAN_MMIO 420 select USB_EHCI_BIG_ENDIAN_DESC 421 select USB_UHCI_BIG_ENDIAN_MMIO 422 select USB_UHCI_BIG_ENDIAN_DESC 423 ---help--- 424 If you say Y here if you are running on a SPARC-LEON processor. 425 The LEON processor is a synthesizable VHDL model of the 426 SPARC-v8 standard. LEON is part of the GRLIB collection of 427 IP cores that are distributed under GPL. GRLIB can be downloaded 428 from www.gaisler.com. You can download a sparc-linux cross-compilation 429 toolchain at www.gaisler.com. 430 431if SPARC_LEON 432menu "U-Boot options" 433 434config UBOOT_LOAD_ADDR 435 hex "uImage Load Address" 436 default 0x40004000 437 ---help--- 438 U-Boot kernel load address, the address in physical address space 439 where u-boot will place the Linux kernel before booting it. 440 This address is normally the base address of main memory + 0x4000. 441 442config UBOOT_FLASH_ADDR 443 hex "uImage.o Load Address" 444 default 0x00080000 445 ---help--- 446 Optional setting only affecting the uImage.o ELF-image used to 447 download the uImage file to the target using a ELF-loader other than 448 U-Boot. It may for example be used to download an uImage to FLASH with 449 the GRMON utility before even starting u-boot. 450 451config UBOOT_ENTRY_ADDR 452 hex "uImage Entry Address" 453 default 0xf0004000 454 ---help--- 455 Do not change this unless you know what you're doing. This is 456 hardcoded by the SPARC32 and LEON port. 457 458 This is the virtual address u-boot jumps to when booting the Linux 459 Kernel. 460 461endmenu 462endif 463 464endmenu 465 466menu "Bus options (PCI etc.)" 467config SBUS 468 bool 469 default y 470 471config SBUSCHAR 472 bool 473 default y 474 475config SUN_LDOMS 476 bool "Sun Logical Domains support" 477 depends on SPARC64 478 help 479 Say Y here is you want to support virtual devices via 480 Logical Domains. 481 482config PCI 483 bool "Support for PCI and PS/2 keyboard/mouse" 484 help 485 Find out whether your system includes a PCI bus. PCI is the name of 486 a bus system, i.e. the way the CPU talks to the other stuff inside 487 your box. If you say Y here, the kernel will include drivers and 488 infrastructure code to support PCI bus devices. 489 490 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 491 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 492 All of these platforms are extremely obscure, so say N if unsure. 493 494config PCI_DOMAINS 495 def_bool PCI if SPARC64 496 497config PCI_SYSCALL 498 def_bool PCI 499 500config PCIC_PCI 501 bool 502 depends on PCI && SPARC32 && !SPARC_LEON 503 default y 504 505config LEON_PCI 506 bool 507 depends on PCI && SPARC_LEON 508 default y 509 510config SPARC_GRPCI1 511 bool "GRPCI Host Bridge Support" 512 depends on LEON_PCI 513 default y 514 help 515 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 516 PCI host controller is typically found in GRLIB SPARC32/LEON 517 systems. The driver has one property (all_pci_errors) controlled 518 from the bootloader that makes the GRPCI to generate interrupts 519 on detected PCI Parity and System errors. 520 521config SPARC_GRPCI2 522 bool "GRPCI2 Host Bridge Support" 523 depends on LEON_PCI 524 default y 525 help 526 Say Y here to include the GRPCI2 Host Bridge Driver. 527 528source "drivers/pci/Kconfig" 529 530source "drivers/pcmcia/Kconfig" 531 532config SUN_OPENPROMFS 533 tristate "Openprom tree appears in /proc/openprom" 534 help 535 If you say Y, the OpenPROM device tree will be available as a 536 virtual file system, which you can mount to /proc/openprom by "mount 537 -t openpromfs none /proc/openprom". 538 539 To compile the /proc/openprom support as a module, choose M here: the 540 module will be called openpromfs. 541 542 Only choose N if you know in advance that you will not need to modify 543 OpenPROM settings on the running system. 544 545# Makefile helpers 546config SPARC64_PCI 547 bool 548 default y 549 depends on SPARC64 && PCI 550 551config SPARC64_PCI_MSI 552 bool 553 default y 554 depends on SPARC64_PCI && PCI_MSI 555 556endmenu 557 558menu "Executable file formats" 559 560source "fs/Kconfig.binfmt" 561 562config COMPAT 563 bool 564 depends on SPARC64 565 default y 566 select COMPAT_BINFMT_ELF 567 select HAVE_UID16 568 select ARCH_WANT_OLD_COMPAT_IPC 569 select COMPAT_OLD_SIGACTION 570 571config SYSVIPC_COMPAT 572 bool 573 depends on COMPAT && SYSVIPC 574 default y 575 576endmenu 577 578source "net/Kconfig" 579 580source "drivers/Kconfig" 581 582source "drivers/sbus/char/Kconfig" 583 584source "fs/Kconfig" 585 586source "arch/sparc/Kconfig.debug" 587 588source "security/Kconfig" 589 590source "crypto/Kconfig" 591 592source "lib/Kconfig" 593