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 87config ARCH_DEFCONFIG 88 string 89 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 90 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 91 92config ARCH_PROC_KCORE_TEXT 93 def_bool y 94 95config ARCH_ATU 96 bool 97 default y if SPARC64 98 99config ARCH_DMA_ADDR_T_64BIT 100 bool 101 default y if ARCH_ATU 102 103config IOMMU_HELPER 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 NEED_DMA_MAP_STATE 144 def_bool y 145 146config NEED_SG_DMA_LENGTH 147 def_bool y 148 149config GENERIC_ISA_DMA 150 bool 151 default y if SPARC32 152 153config ARCH_SUPPORTS_DEBUG_PAGEALLOC 154 def_bool y if SPARC64 155 156config PGTABLE_LEVELS 157 default 4 if 64BIT 158 default 3 159 160config ARCH_SUPPORTS_UPROBES 161 def_bool y if SPARC64 162 163source "init/Kconfig" 164 165source "kernel/Kconfig.freezer" 166 167menu "Processor type and features" 168 169config SMP 170 bool "Symmetric multi-processing support" 171 ---help--- 172 This enables support for systems with more than one CPU. If you have 173 a system with only one CPU, say N. If you have a system with more 174 than one CPU, say Y. 175 176 If you say N here, the kernel will run on uni- and multiprocessor 177 machines, but will use only one CPU of a multiprocessor machine. If 178 you say Y here, the kernel will run on many, but not all, 179 uniprocessor machines. On a uniprocessor machine, the kernel 180 will run faster if you say N here. 181 182 People using multiprocessor machines who say Y here should also say 183 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 184 Management" code will be disabled if you say Y here. 185 186 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 187 available at <http://www.tldp.org/docs.html#howto>. 188 189 If you don't know what to do here, say N. 190 191config NR_CPUS 192 int "Maximum number of CPUs" 193 depends on SMP 194 range 2 32 if SPARC32 195 range 2 4096 if SPARC64 196 default 32 if SPARC32 197 default 4096 if SPARC64 198 199source kernel/Kconfig.hz 200 201config RWSEM_GENERIC_SPINLOCK 202 bool 203 default y if SPARC32 204 205config RWSEM_XCHGADD_ALGORITHM 206 bool 207 default y if SPARC64 208 209config GENERIC_HWEIGHT 210 bool 211 default y 212 213config GENERIC_CALIBRATE_DELAY 214 bool 215 default y 216 217config ARCH_MAY_HAVE_PC_FDC 218 bool 219 default y 220 221config EMULATED_CMPXCHG 222 bool 223 default y if SPARC32 224 help 225 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 226 is emulated, and therefore it is not completely atomic. 227 228# Makefile helpers 229config SPARC32_SMP 230 bool 231 default y 232 depends on SPARC32 && SMP 233 234config SPARC64_SMP 235 bool 236 default y 237 depends on SPARC64 && SMP 238 239config EARLYFB 240 bool "Support for early boot text console" 241 default y 242 depends on SPARC64 243 help 244 Say Y here to enable a faster early framebuffer boot console. 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 help 267 Say Y here to experiment with turning CPUs off and on. CPUs 268 can be controlled through /sys/devices/system/cpu/cpu#. 269 Say N if you want to disable CPU hotplug. 270 271if SPARC64 272source "drivers/cpufreq/Kconfig" 273endif 274 275config US3_MC 276 tristate "UltraSPARC-III Memory Controller driver" 277 depends on SPARC64 278 default y 279 help 280 This adds a driver for the UltraSPARC-III memory controller. 281 Loading this driver allows exact mnemonic strings to be 282 printed in the event of a memory error, so that the faulty DIMM 283 on the motherboard can be matched to the error. 284 285 If in doubt, say Y, as this information can be very useful. 286 287# Global things across all Sun machines. 288config GENERIC_LOCKBREAK 289 bool 290 default y 291 depends on SPARC64 && SMP && PREEMPT 292 293config NUMA 294 bool "NUMA support" 295 depends on SPARC64 && SMP 296 297config NODES_SHIFT 298 int "Maximum NUMA Nodes (as a power of 2)" 299 range 4 5 if SPARC64 300 default "5" 301 depends on NEED_MULTIPLE_NODES 302 help 303 Specify the maximum number of NUMA Nodes available on the target 304 system. Increases memory reserved to accommodate various tables. 305 306# Some NUMA nodes have memory ranges that span 307# other nodes. Even though a pfn is valid and 308# between a node's start and end pfns, it may not 309# reside on that node. See memmap_init_zone() 310# for details. 311config NODES_SPAN_OTHER_NODES 312 def_bool y 313 depends on NEED_MULTIPLE_NODES 314 315config ARCH_SELECT_MEMORY_MODEL 316 def_bool y if SPARC64 317 318config ARCH_SPARSEMEM_ENABLE 319 def_bool y if SPARC64 320 select SPARSEMEM_VMEMMAP_ENABLE 321 322config ARCH_SPARSEMEM_DEFAULT 323 def_bool y if SPARC64 324 325config FORCE_MAX_ZONEORDER 326 int "Maximum zone order" 327 default "13" 328 help 329 The kernel memory allocator divides physically contiguous memory 330 blocks into "zones", where each zone is a power of two number of 331 pages. This option selects the largest power of two that the kernel 332 keeps in the memory allocator. If you need to allocate very large 333 blocks of physically contiguous memory, then you may need to 334 increase this value. 335 336 This config option is actually maximum order plus one. For example, 337 a value of 13 means that the largest free memory block is 2^12 pages. 338 339source "mm/Kconfig" 340 341if SPARC64 342source "kernel/power/Kconfig" 343endif 344 345config SCHED_SMT 346 bool "SMT (Hyperthreading) scheduler support" 347 depends on SPARC64 && SMP 348 default y 349 help 350 SMT scheduler support improves the CPU scheduler's decision making 351 when dealing with SPARC cpus at a cost of slightly increased overhead 352 in some places. If unsure say N here. 353 354config SCHED_MC 355 bool "Multi-core scheduler support" 356 depends on SPARC64 && SMP 357 default y 358 help 359 Multi-core scheduler support improves the CPU scheduler's decision 360 making when dealing with multi-core CPU chips at a cost of slightly 361 increased overhead in some places. If unsure say N here. 362 363source "kernel/Kconfig.preempt" 364 365config CMDLINE_BOOL 366 bool "Default bootloader kernel arguments" 367 depends on SPARC64 368 369config CMDLINE 370 string "Initial kernel command string" 371 depends on CMDLINE_BOOL 372 default "console=ttyS0,9600 root=/dev/sda1" 373 help 374 Say Y here if you want to be able to pass default arguments to 375 the kernel. This will be overridden by the bootloader, if you 376 use one (such as SILO). This is most useful if you want to boot 377 a kernel from TFTP, and want default options to be available 378 with having them passed on the command line. 379 380 NOTE: This option WILL override the PROM bootargs setting! 381 382config SUN_PM 383 bool 384 default y if SPARC32 385 help 386 Enable power management and CPU standby features on supported 387 SPARC platforms. 388 389config SPARC_LED 390 tristate "Sun4m LED driver" 391 depends on SPARC32 392 help 393 This driver toggles the front-panel LED on sun4m systems 394 in a user-specifiable manner. Its state can be probed 395 by reading /proc/led and its blinking mode can be changed 396 via writes to /proc/led 397 398config SERIAL_CONSOLE 399 bool 400 depends on SPARC32 401 default y 402 ---help--- 403 If you say Y here, it will be possible to use a serial port as the 404 system console (the system console is the device which receives all 405 kernel messages and warnings and which allows logins in single user 406 mode). This could be useful if some terminal or printer is connected 407 to that serial port. 408 409 Even if you say Y here, the currently visible virtual console 410 (/dev/tty0) will still be used as the system console by default, but 411 you can alter that using a kernel command line option such as 412 "console=ttyS1". (Try "man bootparam" or see the documentation of 413 your boot loader (silo) about how to pass options to the kernel at 414 boot time.) 415 416 If you don't have a graphics card installed and you say Y here, the 417 kernel will automatically use the first serial line, /dev/ttyS0, as 418 system console. 419 420 If unsure, say N. 421 422config SPARC_LEON 423 bool "Sparc Leon processor family" 424 depends on SPARC32 425 select USB_EHCI_BIG_ENDIAN_MMIO 426 select USB_EHCI_BIG_ENDIAN_DESC 427 ---help--- 428 If you say Y here if you are running on a SPARC-LEON processor. 429 The LEON processor is a synthesizable VHDL model of the 430 SPARC-v8 standard. LEON is part of the GRLIB collection of 431 IP cores that are distributed under GPL. GRLIB can be downloaded 432 from www.gaisler.com. You can download a sparc-linux cross-compilation 433 toolchain at www.gaisler.com. 434 435if SPARC_LEON 436menu "U-Boot options" 437 438config UBOOT_LOAD_ADDR 439 hex "uImage Load Address" 440 default 0x40004000 441 ---help--- 442 U-Boot kernel load address, the address in physical address space 443 where u-boot will place the Linux kernel before booting it. 444 This address is normally the base address of main memory + 0x4000. 445 446config UBOOT_FLASH_ADDR 447 hex "uImage.o Load Address" 448 default 0x00080000 449 ---help--- 450 Optional setting only affecting the uImage.o ELF-image used to 451 download the uImage file to the target using a ELF-loader other than 452 U-Boot. It may for example be used to download an uImage to FLASH with 453 the GRMON utility before even starting u-boot. 454 455config UBOOT_ENTRY_ADDR 456 hex "uImage Entry Address" 457 default 0xf0004000 458 ---help--- 459 Do not change this unless you know what you're doing. This is 460 hardcoded by the SPARC32 and LEON port. 461 462 This is the virtual address u-boot jumps to when booting the Linux 463 Kernel. 464 465endmenu 466endif 467 468endmenu 469 470menu "Bus options (PCI etc.)" 471config SBUS 472 bool 473 default y 474 475config SBUSCHAR 476 bool 477 default y 478 479config SUN_LDOMS 480 bool "Sun Logical Domains support" 481 depends on SPARC64 482 help 483 Say Y here is you want to support virtual devices via 484 Logical Domains. 485 486config PCI 487 bool "Support for PCI and PS/2 keyboard/mouse" 488 help 489 Find out whether your system includes a PCI bus. PCI is the name of 490 a bus system, i.e. the way the CPU talks to the other stuff inside 491 your box. If you say Y here, the kernel will include drivers and 492 infrastructure code to support PCI bus devices. 493 494 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 495 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 496 All of these platforms are extremely obscure, so say N if unsure. 497 498config PCI_DOMAINS 499 def_bool PCI if SPARC64 500 501config PCI_SYSCALL 502 def_bool PCI 503 504config PCIC_PCI 505 bool 506 depends on PCI && SPARC32 && !SPARC_LEON 507 default y 508 509config LEON_PCI 510 bool 511 depends on PCI && SPARC_LEON 512 default y 513 514config SPARC_GRPCI1 515 bool "GRPCI Host Bridge Support" 516 depends on LEON_PCI 517 default y 518 help 519 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 520 PCI host controller is typically found in GRLIB SPARC32/LEON 521 systems. The driver has one property (all_pci_errors) controlled 522 from the bootloader that makes the GRPCI to generate interrupts 523 on detected PCI Parity and System errors. 524 525config SPARC_GRPCI2 526 bool "GRPCI2 Host Bridge Support" 527 depends on LEON_PCI 528 default y 529 help 530 Say Y here to include the GRPCI2 Host Bridge Driver. 531 532source "drivers/pci/Kconfig" 533 534source "drivers/pcmcia/Kconfig" 535 536config SUN_OPENPROMFS 537 tristate "Openprom tree appears in /proc/openprom" 538 help 539 If you say Y, the OpenPROM device tree will be available as a 540 virtual file system, which you can mount to /proc/openprom by "mount 541 -t openpromfs none /proc/openprom". 542 543 To compile the /proc/openprom support as a module, choose M here: the 544 module will be called openpromfs. 545 546 Only choose N if you know in advance that you will not need to modify 547 OpenPROM settings on the running system. 548 549# Makefile helpers 550config SPARC64_PCI 551 bool 552 default y 553 depends on SPARC64 && PCI 554 555config SPARC64_PCI_MSI 556 bool 557 default y 558 depends on SPARC64_PCI && PCI_MSI 559 560endmenu 561 562menu "Executable file formats" 563 564source "fs/Kconfig.binfmt" 565 566config COMPAT 567 bool 568 depends on SPARC64 569 default y 570 select COMPAT_BINFMT_ELF 571 select HAVE_UID16 572 select ARCH_WANT_OLD_COMPAT_IPC 573 select COMPAT_OLD_SIGACTION 574 575config SYSVIPC_COMPAT 576 bool 577 depends on COMPAT && SYSVIPC 578 default y 579 580endmenu 581 582source "net/Kconfig" 583 584source "drivers/Kconfig" 585 586source "drivers/sbus/char/Kconfig" 587 588source "fs/Kconfig" 589 590source "arch/sparc/Kconfig.debug" 591 592source "security/Kconfig" 593 594source "crypto/Kconfig" 595 596source "lib/Kconfig" 597