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 select HAVE_MEMBLOCK 49 select NO_BOOTMEM 50 51config SPARC32 52 def_bool !64BIT 53 select ARCH_HAS_SYNC_DMA_FOR_CPU 54 select DMA_NONCOHERENT_OPS 55 select GENERIC_ATOMIC64 56 select CLZ_TAB 57 select HAVE_UID16 58 select OLD_SIGACTION 59 60config SPARC64 61 def_bool 64BIT 62 select HAVE_FUNCTION_TRACER 63 select HAVE_FUNCTION_GRAPH_TRACER 64 select HAVE_KRETPROBES 65 select HAVE_KPROBES 66 select HAVE_RCU_TABLE_FREE if SMP 67 select HAVE_MEMBLOCK_NODE_MAP 68 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 69 select HAVE_DYNAMIC_FTRACE 70 select HAVE_FTRACE_MCOUNT_RECORD 71 select HAVE_SYSCALL_TRACEPOINTS 72 select HAVE_CONTEXT_TRACKING 73 select HAVE_DEBUG_KMEMLEAK 74 select IOMMU_HELPER 75 select SPARSE_IRQ 76 select RTC_DRV_CMOS 77 select RTC_DRV_BQ4802 78 select RTC_DRV_SUN4V 79 select RTC_DRV_STARFIRE 80 select HAVE_PERF_EVENTS 81 select PERF_USE_VMALLOC 82 select IRQ_PREFLOW_FASTEOI 83 select ARCH_HAVE_NMI_SAFE_CMPXCHG 84 select HAVE_C_RECORDMCOUNT 85 select HAVE_ARCH_AUDITSYSCALL 86 select ARCH_SUPPORTS_ATOMIC_RMW 87 select HAVE_NMI 88 select HAVE_REGS_AND_STACK_ACCESS_API 89 select ARCH_USE_QUEUED_RWLOCKS 90 select ARCH_USE_QUEUED_SPINLOCKS 91 select GENERIC_TIME_VSYSCALL 92 select ARCH_CLOCKSOURCE_DATA 93 select ARCH_HAS_PTE_SPECIAL 94 95config ARCH_DEFCONFIG 96 string 97 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 98 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 99 100config ARCH_PROC_KCORE_TEXT 101 def_bool y 102 103config CPU_BIG_ENDIAN 104 def_bool y 105 106config ARCH_ATU 107 bool 108 default y if SPARC64 109 110config STACKTRACE_SUPPORT 111 bool 112 default y if SPARC64 113 114config LOCKDEP_SUPPORT 115 bool 116 default y if SPARC64 117 118config ARCH_HIBERNATION_POSSIBLE 119 def_bool y if SPARC64 120 121config AUDIT_ARCH 122 bool 123 default y 124 125config HAVE_SETUP_PER_CPU_AREA 126 def_bool y if SPARC64 127 128config NEED_PER_CPU_EMBED_FIRST_CHUNK 129 def_bool y if SPARC64 130 131config NEED_PER_CPU_PAGE_FIRST_CHUNK 132 def_bool y if SPARC64 133 134config MMU 135 bool 136 default y 137 138config HIGHMEM 139 bool 140 default y if SPARC32 141 142config ZONE_DMA 143 bool 144 default y if SPARC32 145 146config GENERIC_ISA_DMA 147 bool 148 default y if SPARC32 149 150config ARCH_SUPPORTS_DEBUG_PAGEALLOC 151 def_bool y if SPARC64 152 153config PGTABLE_LEVELS 154 default 4 if 64BIT 155 default 3 156 157config ARCH_SUPPORTS_UPROBES 158 def_bool y if SPARC64 159 160menu "Processor type and features" 161 162config SMP 163 bool "Symmetric multi-processing support" 164 ---help--- 165 This enables support for systems with more than one CPU. If you have 166 a system with only one CPU, say N. If you have a system with more 167 than one CPU, say Y. 168 169 If you say N here, the kernel will run on uni- and multiprocessor 170 machines, but will use only one CPU of a multiprocessor machine. If 171 you say Y here, the kernel will run on many, but not all, 172 uniprocessor machines. On a uniprocessor machine, the kernel 173 will run faster if you say N here. 174 175 People using multiprocessor machines who say Y here should also say 176 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power 177 Management" code will be disabled if you say Y here. 178 179 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO 180 available at <http://www.tldp.org/docs.html#howto>. 181 182 If you don't know what to do here, say N. 183 184config NR_CPUS 185 int "Maximum number of CPUs" 186 depends on SMP 187 range 2 32 if SPARC32 188 range 2 4096 if SPARC64 189 default 32 if SPARC32 190 default 4096 if SPARC64 191 192source kernel/Kconfig.hz 193 194config RWSEM_GENERIC_SPINLOCK 195 bool 196 default y if SPARC32 197 198config RWSEM_XCHGADD_ALGORITHM 199 bool 200 default y if SPARC64 201 202config GENERIC_HWEIGHT 203 bool 204 default y 205 206config GENERIC_CALIBRATE_DELAY 207 bool 208 default y 209 210config ARCH_MAY_HAVE_PC_FDC 211 bool 212 default y 213 214config EMULATED_CMPXCHG 215 bool 216 default y if SPARC32 217 help 218 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 219 is emulated, and therefore it is not completely atomic. 220 221# Makefile helpers 222config SPARC32_SMP 223 bool 224 default y 225 depends on SPARC32 && SMP 226 227config SPARC64_SMP 228 bool 229 default y 230 depends on SPARC64 && SMP 231 232config EARLYFB 233 bool "Support for early boot text console" 234 default y 235 depends on SPARC64 236 help 237 Say Y here to enable a faster early framebuffer boot console. 238 239config SECCOMP 240 bool "Enable seccomp to safely compute untrusted bytecode" 241 depends on SPARC64 && PROC_FS 242 default y 243 help 244 This kernel feature is useful for number crunching applications 245 that may need to compute untrusted bytecode during their 246 execution. By using pipes or other transports made available to 247 the process as file descriptors supporting the read/write 248 syscalls, it's possible to isolate those applications in 249 their own address space using seccomp. Once seccomp is 250 enabled via /proc/<pid>/seccomp, it cannot be disabled 251 and the task is only allowed to execute a few safe syscalls 252 defined by each seccomp mode. 253 254 If unsure, say Y. Only embedded should say N here. 255 256config HOTPLUG_CPU 257 bool "Support for hot-pluggable CPUs" 258 depends on SPARC64 && SMP 259 help 260 Say Y here to experiment with turning CPUs off and on. CPUs 261 can be controlled through /sys/devices/system/cpu/cpu#. 262 Say N if you want to disable CPU hotplug. 263 264if SPARC64 265source "drivers/cpufreq/Kconfig" 266endif 267 268config US3_MC 269 tristate "UltraSPARC-III Memory Controller driver" 270 depends on SPARC64 271 default y 272 help 273 This adds a driver for the UltraSPARC-III memory controller. 274 Loading this driver allows exact mnemonic strings to be 275 printed in the event of a memory error, so that the faulty DIMM 276 on the motherboard can be matched to the error. 277 278 If in doubt, say Y, as this information can be very useful. 279 280# Global things across all Sun machines. 281config GENERIC_LOCKBREAK 282 bool 283 default y 284 depends on SPARC64 && SMP && PREEMPT 285 286config NUMA 287 bool "NUMA support" 288 depends on SPARC64 && SMP 289 290config NODES_SHIFT 291 int "Maximum NUMA Nodes (as a power of 2)" 292 range 4 5 if SPARC64 293 default "5" 294 depends on NEED_MULTIPLE_NODES 295 help 296 Specify the maximum number of NUMA Nodes available on the target 297 system. Increases memory reserved to accommodate various tables. 298 299# Some NUMA nodes have memory ranges that span 300# other nodes. Even though a pfn is valid and 301# between a node's start and end pfns, it may not 302# reside on that node. See memmap_init_zone() 303# for details. 304config NODES_SPAN_OTHER_NODES 305 def_bool y 306 depends on NEED_MULTIPLE_NODES 307 308config ARCH_SELECT_MEMORY_MODEL 309 def_bool y if SPARC64 310 311config ARCH_SPARSEMEM_ENABLE 312 def_bool y if SPARC64 313 select SPARSEMEM_VMEMMAP_ENABLE 314 315config ARCH_SPARSEMEM_DEFAULT 316 def_bool y if SPARC64 317 318config FORCE_MAX_ZONEORDER 319 int "Maximum zone order" 320 default "13" 321 help 322 The kernel memory allocator divides physically contiguous memory 323 blocks into "zones", where each zone is a power of two number of 324 pages. This option selects the largest power of two that the kernel 325 keeps in the memory allocator. If you need to allocate very large 326 blocks of physically contiguous memory, then you may need to 327 increase this value. 328 329 This config option is actually maximum order plus one. For example, 330 a value of 13 means that the largest free memory block is 2^12 pages. 331 332if SPARC64 333source "kernel/power/Kconfig" 334endif 335 336config SCHED_SMT 337 bool "SMT (Hyperthreading) scheduler support" 338 depends on SPARC64 && SMP 339 default y 340 help 341 SMT scheduler support improves the CPU scheduler's decision making 342 when dealing with SPARC cpus at a cost of slightly increased overhead 343 in some places. If unsure say N here. 344 345config SCHED_MC 346 bool "Multi-core scheduler support" 347 depends on SPARC64 && SMP 348 default y 349 help 350 Multi-core scheduler support improves the CPU scheduler's decision 351 making when dealing with multi-core CPU chips at a cost of slightly 352 increased overhead in some places. If unsure say N here. 353 354config CMDLINE_BOOL 355 bool "Default bootloader kernel arguments" 356 depends on SPARC64 357 358config CMDLINE 359 string "Initial kernel command string" 360 depends on CMDLINE_BOOL 361 default "console=ttyS0,9600 root=/dev/sda1" 362 help 363 Say Y here if you want to be able to pass default arguments to 364 the kernel. This will be overridden by the bootloader, if you 365 use one (such as SILO). This is most useful if you want to boot 366 a kernel from TFTP, and want default options to be available 367 with having them passed on the command line. 368 369 NOTE: This option WILL override the PROM bootargs setting! 370 371config SUN_PM 372 bool 373 default y if SPARC32 374 help 375 Enable power management and CPU standby features on supported 376 SPARC platforms. 377 378config SPARC_LED 379 tristate "Sun4m LED driver" 380 depends on SPARC32 381 help 382 This driver toggles the front-panel LED on sun4m systems 383 in a user-specifiable manner. Its state can be probed 384 by reading /proc/led and its blinking mode can be changed 385 via writes to /proc/led 386 387config SERIAL_CONSOLE 388 bool 389 depends on SPARC32 390 default y 391 ---help--- 392 If you say Y here, it will be possible to use a serial port as the 393 system console (the system console is the device which receives all 394 kernel messages and warnings and which allows logins in single user 395 mode). This could be useful if some terminal or printer is connected 396 to that serial port. 397 398 Even if you say Y here, the currently visible virtual console 399 (/dev/tty0) will still be used as the system console by default, but 400 you can alter that using a kernel command line option such as 401 "console=ttyS1". (Try "man bootparam" or see the documentation of 402 your boot loader (silo) about how to pass options to the kernel at 403 boot time.) 404 405 If you don't have a graphics card installed and you say Y here, the 406 kernel will automatically use the first serial line, /dev/ttyS0, as 407 system console. 408 409 If unsure, say N. 410 411config SPARC_LEON 412 bool "Sparc Leon processor family" 413 depends on SPARC32 414 select USB_EHCI_BIG_ENDIAN_MMIO 415 select USB_EHCI_BIG_ENDIAN_DESC 416 select USB_UHCI_BIG_ENDIAN_MMIO 417 select USB_UHCI_BIG_ENDIAN_DESC 418 ---help--- 419 If you say Y here if you are running on a SPARC-LEON processor. 420 The LEON processor is a synthesizable VHDL model of the 421 SPARC-v8 standard. LEON is part of the GRLIB collection of 422 IP cores that are distributed under GPL. GRLIB can be downloaded 423 from www.gaisler.com. You can download a sparc-linux cross-compilation 424 toolchain at www.gaisler.com. 425 426if SPARC_LEON 427menu "U-Boot options" 428 429config UBOOT_LOAD_ADDR 430 hex "uImage Load Address" 431 default 0x40004000 432 ---help--- 433 U-Boot kernel load address, the address in physical address space 434 where u-boot will place the Linux kernel before booting it. 435 This address is normally the base address of main memory + 0x4000. 436 437config UBOOT_FLASH_ADDR 438 hex "uImage.o Load Address" 439 default 0x00080000 440 ---help--- 441 Optional setting only affecting the uImage.o ELF-image used to 442 download the uImage file to the target using a ELF-loader other than 443 U-Boot. It may for example be used to download an uImage to FLASH with 444 the GRMON utility before even starting u-boot. 445 446config UBOOT_ENTRY_ADDR 447 hex "uImage Entry Address" 448 default 0xf0004000 449 ---help--- 450 Do not change this unless you know what you're doing. This is 451 hardcoded by the SPARC32 and LEON port. 452 453 This is the virtual address u-boot jumps to when booting the Linux 454 Kernel. 455 456endmenu 457endif 458 459endmenu 460 461menu "Bus options (PCI etc.)" 462config SBUS 463 bool 464 default y 465 466config SBUSCHAR 467 bool 468 default y 469 470config SUN_LDOMS 471 bool "Sun Logical Domains support" 472 depends on SPARC64 473 help 474 Say Y here is you want to support virtual devices via 475 Logical Domains. 476 477config PCI 478 bool "Support for PCI and PS/2 keyboard/mouse" 479 help 480 Find out whether your system includes a PCI bus. PCI is the name of 481 a bus system, i.e. the way the CPU talks to the other stuff inside 482 your box. If you say Y here, the kernel will include drivers and 483 infrastructure code to support PCI bus devices. 484 485 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 486 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 487 All of these platforms are extremely obscure, so say N if unsure. 488 489config PCI_DOMAINS 490 def_bool PCI if SPARC64 491 492config PCI_SYSCALL 493 def_bool PCI 494 495config PCIC_PCI 496 bool 497 depends on PCI && SPARC32 && !SPARC_LEON 498 default y 499 500config LEON_PCI 501 bool 502 depends on PCI && SPARC_LEON 503 default y 504 505config SPARC_GRPCI1 506 bool "GRPCI Host Bridge Support" 507 depends on LEON_PCI 508 default y 509 help 510 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 511 PCI host controller is typically found in GRLIB SPARC32/LEON 512 systems. The driver has one property (all_pci_errors) controlled 513 from the bootloader that makes the GRPCI to generate interrupts 514 on detected PCI Parity and System errors. 515 516config SPARC_GRPCI2 517 bool "GRPCI2 Host Bridge Support" 518 depends on LEON_PCI 519 default y 520 help 521 Say Y here to include the GRPCI2 Host Bridge Driver. 522 523source "drivers/pci/Kconfig" 524 525source "drivers/pcmcia/Kconfig" 526 527config SUN_OPENPROMFS 528 tristate "Openprom tree appears in /proc/openprom" 529 help 530 If you say Y, the OpenPROM device tree will be available as a 531 virtual file system, which you can mount to /proc/openprom by "mount 532 -t openpromfs none /proc/openprom". 533 534 To compile the /proc/openprom support as a module, choose M here: the 535 module will be called openpromfs. 536 537 Only choose N if you know in advance that you will not need to modify 538 OpenPROM settings on the running system. 539 540# Makefile helpers 541config SPARC64_PCI 542 bool 543 default y 544 depends on SPARC64 && PCI 545 546config SPARC64_PCI_MSI 547 bool 548 default y 549 depends on SPARC64_PCI && PCI_MSI 550 551endmenu 552 553config COMPAT 554 bool 555 depends on SPARC64 556 default y 557 select COMPAT_BINFMT_ELF 558 select HAVE_UID16 559 select ARCH_WANT_OLD_COMPAT_IPC 560 select COMPAT_OLD_SIGACTION 561 562config SYSVIPC_COMPAT 563 bool 564 depends on COMPAT && SYSVIPC 565 default y 566 567source "drivers/sbus/char/Kconfig" 568