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 OF 16 select OF_PROMTREE 17 select HAVE_IDE 18 select HAVE_OPROFILE 19 select HAVE_ARCH_KGDB if !SMP || SPARC64 20 select HAVE_ARCH_TRACEHOOK 21 select SYSCTL_EXCEPTION_TRACE 22 select ARCH_WANT_OPTIONAL_GPIOLIB 23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 24 select RTC_CLASS 25 select RTC_DRV_M48T59 26 select HAVE_DMA_ATTRS 27 select HAVE_DMA_API_DEBUG 28 select HAVE_ARCH_JUMP_LABEL 29 select GENERIC_IRQ_SHOW 30 select ARCH_WANT_IPC_PARSE_VERSION 31 select USE_GENERIC_SMP_HELPERS if SMP 32 select GENERIC_PCI_IOMAP 33 select HAVE_NMI_WATCHDOG if SPARC64 34 select HAVE_BPF_JIT 35 select HAVE_DEBUG_BUGVERBOSE 36 select GENERIC_SMP_IDLE_THREAD 37 select GENERIC_CMOS_UPDATE 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 45config SPARC32 46 def_bool !64BIT 47 select GENERIC_ATOMIC64 48 select CLZ_TAB 49 select HAVE_UID16 50 select OLD_SIGACTION 51 52config SPARC64 53 def_bool 64BIT 54 select HAVE_FUNCTION_TRACER 55 select HAVE_FUNCTION_GRAPH_TRACER 56 select HAVE_FUNCTION_GRAPH_FP_TEST 57 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 58 select HAVE_KRETPROBES 59 select HAVE_KPROBES 60 select HAVE_RCU_TABLE_FREE if SMP 61 select HAVE_MEMBLOCK 62 select HAVE_MEMBLOCK_NODE_MAP 63 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 64 select HAVE_DYNAMIC_FTRACE 65 select HAVE_FTRACE_MCOUNT_RECORD 66 select HAVE_SYSCALL_TRACEPOINTS 67 select HAVE_DEBUG_KMEMLEAK 68 select RTC_DRV_CMOS 69 select RTC_DRV_BQ4802 70 select RTC_DRV_SUN4V 71 select RTC_DRV_STARFIRE 72 select HAVE_PERF_EVENTS 73 select PERF_USE_VMALLOC 74 select IRQ_PREFLOW_FASTEOI 75 select ARCH_HAVE_NMI_SAFE_CMPXCHG 76 select HAVE_C_RECORDMCOUNT 77 select NO_BOOTMEM 78 79config ARCH_DEFCONFIG 80 string 81 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 82 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 83 84config IOMMU_HELPER 85 bool 86 default y if SPARC64 87 88config STACKTRACE_SUPPORT 89 bool 90 default y if SPARC64 91 92config LOCKDEP_SUPPORT 93 bool 94 default y if SPARC64 95 96config HAVE_LATENCYTOP_SUPPORT 97 bool 98 default y if SPARC64 99 100config ARCH_HIBERNATION_POSSIBLE 101 def_bool y if SPARC64 102 103config AUDIT_ARCH 104 bool 105 default y 106 107config HAVE_SETUP_PER_CPU_AREA 108 def_bool y if SPARC64 109 110config NEED_PER_CPU_EMBED_FIRST_CHUNK 111 def_bool y if SPARC64 112 113config NEED_PER_CPU_PAGE_FIRST_CHUNK 114 def_bool y if SPARC64 115 116config MMU 117 bool 118 default y 119 120config HIGHMEM 121 bool 122 default y if SPARC32 123 124config ZONE_DMA 125 bool 126 default y if SPARC32 127 128config NEED_DMA_MAP_STATE 129 def_bool y 130 131config NEED_SG_DMA_LENGTH 132 def_bool y 133 134config GENERIC_ISA_DMA 135 bool 136 default y if SPARC32 137 138config ARCH_SUPPORTS_DEBUG_PAGEALLOC 139 def_bool y if SPARC64 140 141source "init/Kconfig" 142 143source "kernel/Kconfig.freezer" 144 145menu "Processor type and features" 146 147config SMP 148 bool "Symmetric multi-processing support" 149 ---help--- 150 This enables support for systems with more than one CPU. If you have 151 a system with only one CPU, say N. If you have a system with more 152 than one CPU, say Y. 153 154 If you say N here, the kernel will run on single and multiprocessor 155 machines, but will use only one CPU of a multiprocessor machine. If 156 you say Y here, the kernel will run on many, but not all, 157 singleprocessor machines. On a singleprocessor machine, the kernel 158 will run faster if you say N here. 159 160 People using multiprocessor machines who say Y here should also say 161 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 162 Management" code will be disabled if you say Y here. 163 164 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 165 available at <http://www.tldp.org/docs.html#howto>. 166 167 If you don't know what to do here, say N. 168 169config NR_CPUS 170 int "Maximum number of CPUs" 171 depends on SMP 172 range 2 32 if SPARC32 173 range 2 1024 if SPARC64 174 default 32 if SPARC32 175 default 64 if SPARC64 176 177source kernel/Kconfig.hz 178 179config RWSEM_GENERIC_SPINLOCK 180 bool 181 default y if SPARC32 182 183config RWSEM_XCHGADD_ALGORITHM 184 bool 185 default y if SPARC64 186 187config GENERIC_HWEIGHT 188 bool 189 default y 190 191config GENERIC_CALIBRATE_DELAY 192 bool 193 default y 194 195config ARCH_MAY_HAVE_PC_FDC 196 bool 197 default y 198 199config EMULATED_CMPXCHG 200 bool 201 default y if SPARC32 202 help 203 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 204 is emulated, and therefore it is not completely atomic. 205 206# Makefile helpers 207config SPARC32_SMP 208 bool 209 default y 210 depends on SPARC32 && SMP 211 212config SPARC64_SMP 213 bool 214 default y 215 depends on SPARC64 && SMP 216 217config EARLYFB 218 bool "Support for early boot text console" 219 default y 220 depends on SPARC64 221 help 222 Say Y here to enable a faster early framebuffer boot console. 223 224config SECCOMP 225 bool "Enable seccomp to safely compute untrusted bytecode" 226 depends on SPARC64 && PROC_FS 227 default y 228 help 229 This kernel feature is useful for number crunching applications 230 that may need to compute untrusted bytecode during their 231 execution. By using pipes or other transports made available to 232 the process as file descriptors supporting the read/write 233 syscalls, it's possible to isolate those applications in 234 their own address space using seccomp. Once seccomp is 235 enabled via /proc/<pid>/seccomp, it cannot be disabled 236 and the task is only allowed to execute a few safe syscalls 237 defined by each seccomp mode. 238 239 If unsure, say Y. Only embedded should say N here. 240 241config HOTPLUG_CPU 242 bool "Support for hot-pluggable CPUs" 243 depends on SPARC64 && SMP 244 help 245 Say Y here to experiment with turning CPUs off and on. CPUs 246 can be controlled through /sys/devices/system/cpu/cpu#. 247 Say N if you want to disable CPU hotplug. 248 249if SPARC64 250source "drivers/cpufreq/Kconfig" 251endif 252 253config US3_MC 254 tristate "UltraSPARC-III Memory Controller driver" 255 depends on SPARC64 256 default y 257 help 258 This adds a driver for the UltraSPARC-III memory controller. 259 Loading this driver allows exact mnemonic strings to be 260 printed in the event of a memory error, so that the faulty DIMM 261 on the motherboard can be matched to the error. 262 263 If in doubt, say Y, as this information can be very useful. 264 265# Global things across all Sun machines. 266config GENERIC_LOCKBREAK 267 bool 268 default y 269 depends on SPARC64 && SMP && PREEMPT 270 271config NUMA 272 bool "NUMA support" 273 depends on SPARC64 && SMP 274 275config NODES_SHIFT 276 int 277 default "4" 278 depends on NEED_MULTIPLE_NODES 279 280# Some NUMA nodes have memory ranges that span 281# other nodes. Even though a pfn is valid and 282# between a node's start and end pfns, it may not 283# reside on that node. See memmap_init_zone() 284# for details. 285config NODES_SPAN_OTHER_NODES 286 def_bool y 287 depends on NEED_MULTIPLE_NODES 288 289config ARCH_SELECT_MEMORY_MODEL 290 def_bool y if SPARC64 291 292config ARCH_SPARSEMEM_ENABLE 293 def_bool y if SPARC64 294 select SPARSEMEM_VMEMMAP_ENABLE 295 296config ARCH_SPARSEMEM_DEFAULT 297 def_bool y if SPARC64 298 299source "mm/Kconfig" 300 301if SPARC64 302source "kernel/power/Kconfig" 303endif 304 305config SCHED_SMT 306 bool "SMT (Hyperthreading) scheduler support" 307 depends on SPARC64 && SMP 308 default y 309 help 310 SMT scheduler support improves the CPU scheduler's decision making 311 when dealing with SPARC cpus at a cost of slightly increased overhead 312 in some places. If unsure say N here. 313 314config SCHED_MC 315 bool "Multi-core scheduler support" 316 depends on SPARC64 && SMP 317 default y 318 help 319 Multi-core scheduler support improves the CPU scheduler's decision 320 making when dealing with multi-core CPU chips at a cost of slightly 321 increased overhead in some places. If unsure say N here. 322 323source "kernel/Kconfig.preempt" 324 325config CMDLINE_BOOL 326 bool "Default bootloader kernel arguments" 327 depends on SPARC64 328 329config CMDLINE 330 string "Initial kernel command string" 331 depends on CMDLINE_BOOL 332 default "console=ttyS0,9600 root=/dev/sda1" 333 help 334 Say Y here if you want to be able to pass default arguments to 335 the kernel. This will be overridden by the bootloader, if you 336 use one (such as SILO). This is most useful if you want to boot 337 a kernel from TFTP, and want default options to be available 338 with having them passed on the command line. 339 340 NOTE: This option WILL override the PROM bootargs setting! 341 342config SUN_PM 343 bool 344 default y if SPARC32 345 help 346 Enable power management and CPU standby features on supported 347 SPARC platforms. 348 349config SPARC_LED 350 tristate "Sun4m LED driver" 351 depends on SPARC32 352 help 353 This driver toggles the front-panel LED on sun4m systems 354 in a user-specifiable manner. Its state can be probed 355 by reading /proc/led and its blinking mode can be changed 356 via writes to /proc/led 357 358config SERIAL_CONSOLE 359 bool 360 depends on SPARC32 361 default y 362 ---help--- 363 If you say Y here, it will be possible to use a serial port as the 364 system console (the system console is the device which receives all 365 kernel messages and warnings and which allows logins in single user 366 mode). This could be useful if some terminal or printer is connected 367 to that serial port. 368 369 Even if you say Y here, the currently visible virtual console 370 (/dev/tty0) will still be used as the system console by default, but 371 you can alter that using a kernel command line option such as 372 "console=ttyS1". (Try "man bootparam" or see the documentation of 373 your boot loader (silo) about how to pass options to the kernel at 374 boot time.) 375 376 If you don't have a graphics card installed and you say Y here, the 377 kernel will automatically use the first serial line, /dev/ttyS0, as 378 system console. 379 380 If unsure, say N. 381 382config SPARC_LEON 383 bool "Sparc Leon processor family" 384 depends on SPARC32 385 select USB_EHCI_BIG_ENDIAN_MMIO 386 select USB_EHCI_BIG_ENDIAN_DESC 387 ---help--- 388 If you say Y here if you are running on a SPARC-LEON processor. 389 The LEON processor is a synthesizable VHDL model of the 390 SPARC-v8 standard. LEON is part of the GRLIB collection of 391 IP cores that are distributed under GPL. GRLIB can be downloaded 392 from www.gaisler.com. You can download a sparc-linux cross-compilation 393 toolchain at www.gaisler.com. 394 395if SPARC_LEON 396menu "U-Boot options" 397 398config UBOOT_LOAD_ADDR 399 hex "uImage Load Address" 400 default 0x40004000 401 ---help--- 402 U-Boot kernel load address, the address in physical address space 403 where u-boot will place the Linux kernel before booting it. 404 This address is normally the base address of main memory + 0x4000. 405 406config UBOOT_FLASH_ADDR 407 hex "uImage.o Load Address" 408 default 0x00080000 409 ---help--- 410 Optional setting only affecting the uImage.o ELF-image used to 411 download the uImage file to the target using a ELF-loader other than 412 U-Boot. It may for example be used to download an uImage to FLASH with 413 the GRMON utility before even starting u-boot. 414 415config UBOOT_ENTRY_ADDR 416 hex "uImage Entry Address" 417 default 0xf0004000 418 ---help--- 419 Do not change this unless you know what you're doing. This is 420 hardcoded by the SPARC32 and LEON port. 421 422 This is the virtual address u-boot jumps to when booting the Linux 423 Kernel. 424 425endmenu 426endif 427 428endmenu 429 430menu "Bus options (PCI etc.)" 431config SBUS 432 bool 433 default y 434 435config SBUSCHAR 436 bool 437 default y 438 439config SUN_LDOMS 440 bool "Sun Logical Domains support" 441 depends on SPARC64 442 help 443 Say Y here is you want to support virtual devices via 444 Logical Domains. 445 446config PCI 447 bool "Support for PCI and PS/2 keyboard/mouse" 448 help 449 Find out whether your system includes a PCI bus. PCI is the name of 450 a bus system, i.e. the way the CPU talks to the other stuff inside 451 your box. If you say Y here, the kernel will include drivers and 452 infrastructure code to support PCI bus devices. 453 454 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 455 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 456 All of these platforms are extremely obscure, so say N if unsure. 457 458config PCI_DOMAINS 459 def_bool PCI if SPARC64 460 461config PCI_SYSCALL 462 def_bool PCI 463 464config PCIC_PCI 465 bool 466 depends on PCI && SPARC32 && !SPARC_LEON 467 default y 468 469config LEON_PCI 470 bool 471 depends on PCI && SPARC_LEON 472 default y 473 474config SPARC_GRPCI1 475 bool "GRPCI Host Bridge Support" 476 depends on LEON_PCI 477 default y 478 help 479 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 480 PCI host controller is typically found in GRLIB SPARC32/LEON 481 systems. The driver has one property (all_pci_errors) controlled 482 from the bootloader that makes the GRPCI to generate interrupts 483 on detected PCI Parity and System errors. 484 485config SPARC_GRPCI2 486 bool "GRPCI2 Host Bridge Support" 487 depends on LEON_PCI 488 default y 489 help 490 Say Y here to include the GRPCI2 Host Bridge Driver. 491 492source "drivers/pci/Kconfig" 493 494source "drivers/pcmcia/Kconfig" 495 496config SUN_OPENPROMFS 497 tristate "Openprom tree appears in /proc/openprom" 498 help 499 If you say Y, the OpenPROM device tree will be available as a 500 virtual file system, which you can mount to /proc/openprom by "mount 501 -t openpromfs none /proc/openprom". 502 503 To compile the /proc/openprom support as a module, choose M here: the 504 module will be called openpromfs. 505 506 Only choose N if you know in advance that you will not need to modify 507 OpenPROM settings on the running system. 508 509# Makefile helpers 510config SPARC64_PCI 511 bool 512 default y 513 depends on SPARC64 && PCI 514 515config SPARC64_PCI_MSI 516 bool 517 default y 518 depends on SPARC64_PCI && PCI_MSI 519 520endmenu 521 522menu "Executable file formats" 523 524source "fs/Kconfig.binfmt" 525 526config COMPAT 527 bool 528 depends on SPARC64 529 default y 530 select COMPAT_BINFMT_ELF 531 select HAVE_UID16 532 select ARCH_WANT_OLD_COMPAT_IPC 533 select COMPAT_OLD_SIGACTION 534 535config SYSVIPC_COMPAT 536 bool 537 depends on COMPAT && SYSVIPC 538 default y 539 540config KEYS_COMPAT 541 def_bool y if COMPAT && KEYS 542 543endmenu 544 545source "net/Kconfig" 546 547source "drivers/Kconfig" 548 549source "drivers/sbus/char/Kconfig" 550 551source "fs/Kconfig" 552 553source "arch/sparc/Kconfig.debug" 554 555source "security/Kconfig" 556 557source "crypto/Kconfig" 558 559source "lib/Kconfig" 560