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 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 HAVE_ARCH_HARDENED_USERCOPY 46 select PROVE_LOCKING_SMALL if PROVE_LOCKING 47 48config SPARC32 49 def_bool !64BIT 50 select GENERIC_ATOMIC64 51 select CLZ_TAB 52 select HAVE_UID16 53 select OLD_SIGACTION 54 55config SPARC64 56 def_bool 64BIT 57 select HAVE_FUNCTION_TRACER 58 select HAVE_FUNCTION_GRAPH_TRACER 59 select HAVE_KRETPROBES 60 select HAVE_KPROBES 61 select HAVE_RCU_TABLE_FREE if SMP 62 select HAVE_MEMBLOCK 63 select HAVE_MEMBLOCK_NODE_MAP 64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 65 select HAVE_DYNAMIC_FTRACE 66 select HAVE_FTRACE_MCOUNT_RECORD 67 select HAVE_SYSCALL_TRACEPOINTS 68 select HAVE_CONTEXT_TRACKING 69 select HAVE_DEBUG_KMEMLEAK 70 select SPARSE_IRQ 71 select RTC_DRV_CMOS 72 select RTC_DRV_BQ4802 73 select RTC_DRV_SUN4V 74 select RTC_DRV_STARFIRE 75 select HAVE_PERF_EVENTS 76 select PERF_USE_VMALLOC 77 select IRQ_PREFLOW_FASTEOI 78 select ARCH_HAVE_NMI_SAFE_CMPXCHG 79 select HAVE_C_RECORDMCOUNT 80 select NO_BOOTMEM 81 select HAVE_ARCH_AUDITSYSCALL 82 select ARCH_SUPPORTS_ATOMIC_RMW 83 select HAVE_NMI 84 85config ARCH_DEFCONFIG 86 string 87 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 88 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 89 90config ARCH_PROC_KCORE_TEXT 91 def_bool y 92 93config ARCH_ATU 94 bool 95 default y if SPARC64 96 97config ARCH_DMA_ADDR_T_64BIT 98 bool 99 default y if ARCH_ATU 100 101config IOMMU_HELPER 102 bool 103 default y if SPARC64 104 105config STACKTRACE_SUPPORT 106 bool 107 default y if SPARC64 108 109config LOCKDEP_SUPPORT 110 bool 111 default y if SPARC64 112 113config ARCH_HIBERNATION_POSSIBLE 114 def_bool y if SPARC64 115 116config AUDIT_ARCH 117 bool 118 default y 119 120config HAVE_SETUP_PER_CPU_AREA 121 def_bool y if SPARC64 122 123config NEED_PER_CPU_EMBED_FIRST_CHUNK 124 def_bool y if SPARC64 125 126config NEED_PER_CPU_PAGE_FIRST_CHUNK 127 def_bool y if SPARC64 128 129config MMU 130 bool 131 default y 132 133config HIGHMEM 134 bool 135 default y if SPARC32 136 137config ZONE_DMA 138 bool 139 default y if SPARC32 140 141config NEED_DMA_MAP_STATE 142 def_bool y 143 144config NEED_SG_DMA_LENGTH 145 def_bool y 146 147config GENERIC_ISA_DMA 148 bool 149 default y if SPARC32 150 151config ARCH_SUPPORTS_DEBUG_PAGEALLOC 152 def_bool y if SPARC64 153 154config PGTABLE_LEVELS 155 default 4 if 64BIT 156 default 3 157 158config ARCH_SUPPORTS_UPROBES 159 def_bool y if SPARC64 160 161source "init/Kconfig" 162 163source "kernel/Kconfig.freezer" 164 165menu "Processor type and features" 166 167config SMP 168 bool "Symmetric multi-processing support" 169 ---help--- 170 This enables support for systems with more than one CPU. If you have 171 a system with only one CPU, say N. If you have a system with more 172 than one CPU, say Y. 173 174 If you say N here, the kernel will run on uni- and multiprocessor 175 machines, but will use only one CPU of a multiprocessor machine. If 176 you say Y here, the kernel will run on many, but not all, 177 uniprocessor machines. On a uniprocessor machine, the kernel 178 will run faster if you say N here. 179 180 People using multiprocessor machines who say Y here should also say 181 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 182 Management" code will be disabled if you say Y here. 183 184 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 185 available at <http://www.tldp.org/docs.html#howto>. 186 187 If you don't know what to do here, say N. 188 189config NR_CPUS 190 int "Maximum number of CPUs" 191 depends on SMP 192 range 2 32 if SPARC32 193 range 2 1024 if SPARC64 194 default 32 if SPARC32 195 default 64 if SPARC64 196 197source kernel/Kconfig.hz 198 199config RWSEM_GENERIC_SPINLOCK 200 bool 201 default y if SPARC32 202 203config RWSEM_XCHGADD_ALGORITHM 204 bool 205 default y if SPARC64 206 207config GENERIC_HWEIGHT 208 bool 209 default y 210 211config GENERIC_CALIBRATE_DELAY 212 bool 213 default y 214 215config ARCH_MAY_HAVE_PC_FDC 216 bool 217 default y 218 219config EMULATED_CMPXCHG 220 bool 221 default y if SPARC32 222 help 223 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 224 is emulated, and therefore it is not completely atomic. 225 226# Makefile helpers 227config SPARC32_SMP 228 bool 229 default y 230 depends on SPARC32 && SMP 231 232config SPARC64_SMP 233 bool 234 default y 235 depends on SPARC64 && SMP 236 237config EARLYFB 238 bool "Support for early boot text console" 239 default y 240 depends on SPARC64 241 help 242 Say Y here to enable a faster early framebuffer boot console. 243 244config SECCOMP 245 bool "Enable seccomp to safely compute untrusted bytecode" 246 depends on SPARC64 && PROC_FS 247 default y 248 help 249 This kernel feature is useful for number crunching applications 250 that may need to compute untrusted bytecode during their 251 execution. By using pipes or other transports made available to 252 the process as file descriptors supporting the read/write 253 syscalls, it's possible to isolate those applications in 254 their own address space using seccomp. Once seccomp is 255 enabled via /proc/<pid>/seccomp, it cannot be disabled 256 and the task is only allowed to execute a few safe syscalls 257 defined by each seccomp mode. 258 259 If unsure, say Y. Only embedded should say N here. 260 261config HOTPLUG_CPU 262 bool "Support for hot-pluggable CPUs" 263 depends on SPARC64 && SMP 264 help 265 Say Y here to experiment with turning CPUs off and on. CPUs 266 can be controlled through /sys/devices/system/cpu/cpu#. 267 Say N if you want to disable CPU hotplug. 268 269if SPARC64 270source "drivers/cpufreq/Kconfig" 271endif 272 273config US3_MC 274 tristate "UltraSPARC-III Memory Controller driver" 275 depends on SPARC64 276 default y 277 help 278 This adds a driver for the UltraSPARC-III memory controller. 279 Loading this driver allows exact mnemonic strings to be 280 printed in the event of a memory error, so that the faulty DIMM 281 on the motherboard can be matched to the error. 282 283 If in doubt, say Y, as this information can be very useful. 284 285# Global things across all Sun machines. 286config GENERIC_LOCKBREAK 287 bool 288 default y 289 depends on SPARC64 && SMP && PREEMPT 290 291config NUMA 292 bool "NUMA support" 293 depends on SPARC64 && SMP 294 295config NODES_SHIFT 296 int 297 default "4" 298 depends on NEED_MULTIPLE_NODES 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 ---help--- 422 If you say Y here if you are running on a SPARC-LEON processor. 423 The LEON processor is a synthesizable VHDL model of the 424 SPARC-v8 standard. LEON is part of the GRLIB collection of 425 IP cores that are distributed under GPL. GRLIB can be downloaded 426 from www.gaisler.com. You can download a sparc-linux cross-compilation 427 toolchain at www.gaisler.com. 428 429if SPARC_LEON 430menu "U-Boot options" 431 432config UBOOT_LOAD_ADDR 433 hex "uImage Load Address" 434 default 0x40004000 435 ---help--- 436 U-Boot kernel load address, the address in physical address space 437 where u-boot will place the Linux kernel before booting it. 438 This address is normally the base address of main memory + 0x4000. 439 440config UBOOT_FLASH_ADDR 441 hex "uImage.o Load Address" 442 default 0x00080000 443 ---help--- 444 Optional setting only affecting the uImage.o ELF-image used to 445 download the uImage file to the target using a ELF-loader other than 446 U-Boot. It may for example be used to download an uImage to FLASH with 447 the GRMON utility before even starting u-boot. 448 449config UBOOT_ENTRY_ADDR 450 hex "uImage Entry Address" 451 default 0xf0004000 452 ---help--- 453 Do not change this unless you know what you're doing. This is 454 hardcoded by the SPARC32 and LEON port. 455 456 This is the virtual address u-boot jumps to when booting the Linux 457 Kernel. 458 459endmenu 460endif 461 462endmenu 463 464menu "Bus options (PCI etc.)" 465config SBUS 466 bool 467 default y 468 469config SBUSCHAR 470 bool 471 default y 472 473config SUN_LDOMS 474 bool "Sun Logical Domains support" 475 depends on SPARC64 476 help 477 Say Y here is you want to support virtual devices via 478 Logical Domains. 479 480config PCI 481 bool "Support for PCI and PS/2 keyboard/mouse" 482 help 483 Find out whether your system includes a PCI bus. PCI is the name of 484 a bus system, i.e. the way the CPU talks to the other stuff inside 485 your box. If you say Y here, the kernel will include drivers and 486 infrastructure code to support PCI bus devices. 487 488 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 489 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 490 All of these platforms are extremely obscure, so say N if unsure. 491 492config PCI_DOMAINS 493 def_bool PCI if SPARC64 494 495config PCI_SYSCALL 496 def_bool PCI 497 498config PCIC_PCI 499 bool 500 depends on PCI && SPARC32 && !SPARC_LEON 501 default y 502 503config LEON_PCI 504 bool 505 depends on PCI && SPARC_LEON 506 default y 507 508config SPARC_GRPCI1 509 bool "GRPCI Host Bridge Support" 510 depends on LEON_PCI 511 default y 512 help 513 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 514 PCI host controller is typically found in GRLIB SPARC32/LEON 515 systems. The driver has one property (all_pci_errors) controlled 516 from the bootloader that makes the GRPCI to generate interrupts 517 on detected PCI Parity and System errors. 518 519config SPARC_GRPCI2 520 bool "GRPCI2 Host Bridge Support" 521 depends on LEON_PCI 522 default y 523 help 524 Say Y here to include the GRPCI2 Host Bridge Driver. 525 526source "drivers/pci/Kconfig" 527 528source "drivers/pcmcia/Kconfig" 529 530config SUN_OPENPROMFS 531 tristate "Openprom tree appears in /proc/openprom" 532 help 533 If you say Y, the OpenPROM device tree will be available as a 534 virtual file system, which you can mount to /proc/openprom by "mount 535 -t openpromfs none /proc/openprom". 536 537 To compile the /proc/openprom support as a module, choose M here: the 538 module will be called openpromfs. 539 540 Only choose N if you know in advance that you will not need to modify 541 OpenPROM settings on the running system. 542 543# Makefile helpers 544config SPARC64_PCI 545 bool 546 default y 547 depends on SPARC64 && PCI 548 549config SPARC64_PCI_MSI 550 bool 551 default y 552 depends on SPARC64_PCI && PCI_MSI 553 554endmenu 555 556menu "Executable file formats" 557 558source "fs/Kconfig.binfmt" 559 560config COMPAT 561 bool 562 depends on SPARC64 563 default y 564 select COMPAT_BINFMT_ELF 565 select HAVE_UID16 566 select ARCH_WANT_OLD_COMPAT_IPC 567 select COMPAT_OLD_SIGACTION 568 569config SYSVIPC_COMPAT 570 bool 571 depends on COMPAT && SYSVIPC 572 default y 573 574config KEYS_COMPAT 575 def_bool y if COMPAT && KEYS 576 577endmenu 578 579source "net/Kconfig" 580 581source "drivers/Kconfig" 582 583source "drivers/sbus/char/Kconfig" 584 585source "fs/Kconfig" 586 587source "arch/sparc/Kconfig.debug" 588 589source "security/Kconfig" 590 591source "crypto/Kconfig" 592 593source "lib/Kconfig" 594