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 1024 if SPARC64 196 default 32 if SPARC32 197 default 64 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 299 default "4" 300 depends on NEED_MULTIPLE_NODES 301 302# Some NUMA nodes have memory ranges that span 303# other nodes. Even though a pfn is valid and 304# between a node's start and end pfns, it may not 305# reside on that node. See memmap_init_zone() 306# for details. 307config NODES_SPAN_OTHER_NODES 308 def_bool y 309 depends on NEED_MULTIPLE_NODES 310 311config ARCH_SELECT_MEMORY_MODEL 312 def_bool y if SPARC64 313 314config ARCH_SPARSEMEM_ENABLE 315 def_bool y if SPARC64 316 select SPARSEMEM_VMEMMAP_ENABLE 317 318config ARCH_SPARSEMEM_DEFAULT 319 def_bool y if SPARC64 320 321config FORCE_MAX_ZONEORDER 322 int "Maximum zone order" 323 default "13" 324 help 325 The kernel memory allocator divides physically contiguous memory 326 blocks into "zones", where each zone is a power of two number of 327 pages. This option selects the largest power of two that the kernel 328 keeps in the memory allocator. If you need to allocate very large 329 blocks of physically contiguous memory, then you may need to 330 increase this value. 331 332 This config option is actually maximum order plus one. For example, 333 a value of 13 means that the largest free memory block is 2^12 pages. 334 335source "mm/Kconfig" 336 337if SPARC64 338source "kernel/power/Kconfig" 339endif 340 341config SCHED_SMT 342 bool "SMT (Hyperthreading) scheduler support" 343 depends on SPARC64 && SMP 344 default y 345 help 346 SMT scheduler support improves the CPU scheduler's decision making 347 when dealing with SPARC cpus at a cost of slightly increased overhead 348 in some places. If unsure say N here. 349 350config SCHED_MC 351 bool "Multi-core scheduler support" 352 depends on SPARC64 && SMP 353 default y 354 help 355 Multi-core scheduler support improves the CPU scheduler's decision 356 making when dealing with multi-core CPU chips at a cost of slightly 357 increased overhead in some places. If unsure say N here. 358 359source "kernel/Kconfig.preempt" 360 361config CMDLINE_BOOL 362 bool "Default bootloader kernel arguments" 363 depends on SPARC64 364 365config CMDLINE 366 string "Initial kernel command string" 367 depends on CMDLINE_BOOL 368 default "console=ttyS0,9600 root=/dev/sda1" 369 help 370 Say Y here if you want to be able to pass default arguments to 371 the kernel. This will be overridden by the bootloader, if you 372 use one (such as SILO). This is most useful if you want to boot 373 a kernel from TFTP, and want default options to be available 374 with having them passed on the command line. 375 376 NOTE: This option WILL override the PROM bootargs setting! 377 378config SUN_PM 379 bool 380 default y if SPARC32 381 help 382 Enable power management and CPU standby features on supported 383 SPARC platforms. 384 385config SPARC_LED 386 tristate "Sun4m LED driver" 387 depends on SPARC32 388 help 389 This driver toggles the front-panel LED on sun4m systems 390 in a user-specifiable manner. Its state can be probed 391 by reading /proc/led and its blinking mode can be changed 392 via writes to /proc/led 393 394config SERIAL_CONSOLE 395 bool 396 depends on SPARC32 397 default y 398 ---help--- 399 If you say Y here, it will be possible to use a serial port as the 400 system console (the system console is the device which receives all 401 kernel messages and warnings and which allows logins in single user 402 mode). This could be useful if some terminal or printer is connected 403 to that serial port. 404 405 Even if you say Y here, the currently visible virtual console 406 (/dev/tty0) will still be used as the system console by default, but 407 you can alter that using a kernel command line option such as 408 "console=ttyS1". (Try "man bootparam" or see the documentation of 409 your boot loader (silo) about how to pass options to the kernel at 410 boot time.) 411 412 If you don't have a graphics card installed and you say Y here, the 413 kernel will automatically use the first serial line, /dev/ttyS0, as 414 system console. 415 416 If unsure, say N. 417 418config SPARC_LEON 419 bool "Sparc Leon processor family" 420 depends on SPARC32 421 select USB_EHCI_BIG_ENDIAN_MMIO 422 select USB_EHCI_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 576config KEYS_COMPAT 577 def_bool y if COMPAT && KEYS 578 579endmenu 580 581source "net/Kconfig" 582 583source "drivers/Kconfig" 584 585source "drivers/sbus/char/Kconfig" 586 587source "fs/Kconfig" 588 589source "arch/sparc/Kconfig.debug" 590 591source "security/Kconfig" 592 593source "crypto/Kconfig" 594 595source "lib/Kconfig" 596