2 bool "64-bit kernel" if ARCH = "sparc"
3 default ARCH = "sparc64"
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.
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
15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_MIGHT_HAVE_PC_SERIO
21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select HAVE_ARCH_TRACEHOOK
23 select SYSCTL_EXCEPTION_TRACE
24 select ARCH_WANT_OPTIONAL_GPIOLIB
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
30 select HAVE_DMA_API_DEBUG
31 select HAVE_ARCH_JUMP_LABEL if SPARC64
32 select GENERIC_IRQ_SHOW
33 select ARCH_WANT_IPC_PARSE_VERSION
34 select GENERIC_PCI_IOMAP
35 select HAVE_NMI_WATCHDOG if SPARC64
37 select HAVE_DEBUG_BUGVERBOSE
38 select GENERIC_SMP_IDLE_THREAD
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA
43 select ODD_RT_SIGACTION
45 select ARCH_HAS_SG_CHAIN
46 select HAVE_ARCH_HARDENED_USERCOPY
50 select GENERIC_ATOMIC64
57 select HAVE_FUNCTION_TRACER
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_FUNCTION_GRAPH_FP_TEST
60 select HAVE_KRETPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
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
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
82 select HAVE_ARCH_AUDITSYSCALL
83 select ARCH_SUPPORTS_ATOMIC_RMW
87 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
88 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
90 config ARCH_PROC_KCORE_TEXT
97 config STACKTRACE_SUPPORT
101 config LOCKDEP_SUPPORT
105 config HAVE_LATENCYTOP_SUPPORT
109 config ARCH_HIBERNATION_POSSIBLE
110 def_bool y if SPARC64
116 config HAVE_SETUP_PER_CPU_AREA
117 def_bool y if SPARC64
119 config NEED_PER_CPU_EMBED_FIRST_CHUNK
120 def_bool y if SPARC64
122 config NEED_PER_CPU_PAGE_FIRST_CHUNK
123 def_bool y if SPARC64
137 config NEED_DMA_MAP_STATE
140 config NEED_SG_DMA_LENGTH
143 config GENERIC_ISA_DMA
147 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
148 def_bool y if SPARC64
150 config PGTABLE_LEVELS
154 source "init/Kconfig"
156 source "kernel/Kconfig.freezer"
158 menu "Processor type and features"
161 bool "Symmetric multi-processing support"
163 This enables support for systems with more than one CPU. If you have
164 a system with only one CPU, say N. If you have a system with more
167 If you say N here, the kernel will run on uni- and multiprocessor
168 machines, but will use only one CPU of a multiprocessor machine. If
169 you say Y here, the kernel will run on many, but not all,
170 uniprocessor machines. On a uniprocessor machine, the kernel
171 will run faster if you say N here.
173 People using multiprocessor machines who say Y here should also say
174 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
175 Management" code will be disabled if you say Y here.
177 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
178 available at <http://www.tldp.org/docs.html#howto>.
180 If you don't know what to do here, say N.
183 int "Maximum number of CPUs"
185 range 2 32 if SPARC32
186 range 2 1024 if SPARC64
187 default 32 if SPARC32
188 default 64 if SPARC64
190 source kernel/Kconfig.hz
192 config RWSEM_GENERIC_SPINLOCK
196 config RWSEM_XCHGADD_ALGORITHM
200 config GENERIC_HWEIGHT
204 config GENERIC_CALIBRATE_DELAY
208 config ARCH_MAY_HAVE_PC_FDC
212 config EMULATED_CMPXCHG
216 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
217 is emulated, and therefore it is not completely atomic.
223 depends on SPARC32 && SMP
228 depends on SPARC64 && SMP
231 bool "Support for early boot text console"
235 Say Y here to enable a faster early framebuffer boot console.
238 bool "Enable seccomp to safely compute untrusted bytecode"
239 depends on SPARC64 && PROC_FS
242 This kernel feature is useful for number crunching applications
243 that may need to compute untrusted bytecode during their
244 execution. By using pipes or other transports made available to
245 the process as file descriptors supporting the read/write
246 syscalls, it's possible to isolate those applications in
247 their own address space using seccomp. Once seccomp is
248 enabled via /proc/<pid>/seccomp, it cannot be disabled
249 and the task is only allowed to execute a few safe syscalls
250 defined by each seccomp mode.
252 If unsure, say Y. Only embedded should say N here.
255 bool "Support for hot-pluggable CPUs"
256 depends on SPARC64 && SMP
258 Say Y here to experiment with turning CPUs off and on. CPUs
259 can be controlled through /sys/devices/system/cpu/cpu#.
260 Say N if you want to disable CPU hotplug.
263 source "drivers/cpufreq/Kconfig"
267 tristate "UltraSPARC-III Memory Controller driver"
271 This adds a driver for the UltraSPARC-III memory controller.
272 Loading this driver allows exact mnemonic strings to be
273 printed in the event of a memory error, so that the faulty DIMM
274 on the motherboard can be matched to the error.
276 If in doubt, say Y, as this information can be very useful.
278 # Global things across all Sun machines.
279 config GENERIC_LOCKBREAK
282 depends on SPARC64 && SMP && PREEMPT
286 depends on SPARC64 && SMP
291 depends on NEED_MULTIPLE_NODES
293 # Some NUMA nodes have memory ranges that span
294 # other nodes. Even though a pfn is valid and
295 # between a node's start and end pfns, it may not
296 # reside on that node. See memmap_init_zone()
298 config NODES_SPAN_OTHER_NODES
300 depends on NEED_MULTIPLE_NODES
302 config ARCH_SELECT_MEMORY_MODEL
303 def_bool y if SPARC64
305 config ARCH_SPARSEMEM_ENABLE
306 def_bool y if SPARC64
307 select SPARSEMEM_VMEMMAP_ENABLE
309 config ARCH_SPARSEMEM_DEFAULT
310 def_bool y if SPARC64
315 source "kernel/power/Kconfig"
319 bool "SMT (Hyperthreading) scheduler support"
320 depends on SPARC64 && SMP
323 SMT scheduler support improves the CPU scheduler's decision making
324 when dealing with SPARC cpus at a cost of slightly increased overhead
325 in some places. If unsure say N here.
328 bool "Multi-core scheduler support"
329 depends on SPARC64 && SMP
332 Multi-core scheduler support improves the CPU scheduler's decision
333 making when dealing with multi-core CPU chips at a cost of slightly
334 increased overhead in some places. If unsure say N here.
336 source "kernel/Kconfig.preempt"
339 bool "Default bootloader kernel arguments"
343 string "Initial kernel command string"
344 depends on CMDLINE_BOOL
345 default "console=ttyS0,9600 root=/dev/sda1"
347 Say Y here if you want to be able to pass default arguments to
348 the kernel. This will be overridden by the bootloader, if you
349 use one (such as SILO). This is most useful if you want to boot
350 a kernel from TFTP, and want default options to be available
351 with having them passed on the command line.
353 NOTE: This option WILL override the PROM bootargs setting!
359 Enable power management and CPU standby features on supported
363 tristate "Sun4m LED driver"
366 This driver toggles the front-panel LED on sun4m systems
367 in a user-specifiable manner. Its state can be probed
368 by reading /proc/led and its blinking mode can be changed
369 via writes to /proc/led
371 config SERIAL_CONSOLE
376 If you say Y here, it will be possible to use a serial port as the
377 system console (the system console is the device which receives all
378 kernel messages and warnings and which allows logins in single user
379 mode). This could be useful if some terminal or printer is connected
382 Even if you say Y here, the currently visible virtual console
383 (/dev/tty0) will still be used as the system console by default, but
384 you can alter that using a kernel command line option such as
385 "console=ttyS1". (Try "man bootparam" or see the documentation of
386 your boot loader (silo) about how to pass options to the kernel at
389 If you don't have a graphics card installed and you say Y here, the
390 kernel will automatically use the first serial line, /dev/ttyS0, as
396 bool "Sparc Leon processor family"
398 select USB_EHCI_BIG_ENDIAN_MMIO
399 select USB_EHCI_BIG_ENDIAN_DESC
401 If you say Y here if you are running on a SPARC-LEON processor.
402 The LEON processor is a synthesizable VHDL model of the
403 SPARC-v8 standard. LEON is part of the GRLIB collection of
404 IP cores that are distributed under GPL. GRLIB can be downloaded
405 from www.gaisler.com. You can download a sparc-linux cross-compilation
406 toolchain at www.gaisler.com.
409 menu "U-Boot options"
411 config UBOOT_LOAD_ADDR
412 hex "uImage Load Address"
415 U-Boot kernel load address, the address in physical address space
416 where u-boot will place the Linux kernel before booting it.
417 This address is normally the base address of main memory + 0x4000.
419 config UBOOT_FLASH_ADDR
420 hex "uImage.o Load Address"
423 Optional setting only affecting the uImage.o ELF-image used to
424 download the uImage file to the target using a ELF-loader other than
425 U-Boot. It may for example be used to download an uImage to FLASH with
426 the GRMON utility before even starting u-boot.
428 config UBOOT_ENTRY_ADDR
429 hex "uImage Entry Address"
432 Do not change this unless you know what you're doing. This is
433 hardcoded by the SPARC32 and LEON port.
435 This is the virtual address u-boot jumps to when booting the Linux
443 menu "Bus options (PCI etc.)"
453 bool "Sun Logical Domains support"
456 Say Y here is you want to support virtual devices via
460 bool "Support for PCI and PS/2 keyboard/mouse"
462 Find out whether your system includes a PCI bus. PCI is the name of
463 a bus system, i.e. the way the CPU talks to the other stuff inside
464 your box. If you say Y here, the kernel will include drivers and
465 infrastructure code to support PCI bus devices.
467 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
468 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
469 All of these platforms are extremely obscure, so say N if unsure.
472 def_bool PCI if SPARC64
479 depends on PCI && SPARC32 && !SPARC_LEON
484 depends on PCI && SPARC_LEON
488 bool "GRPCI Host Bridge Support"
492 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
493 PCI host controller is typically found in GRLIB SPARC32/LEON
494 systems. The driver has one property (all_pci_errors) controlled
495 from the bootloader that makes the GRPCI to generate interrupts
496 on detected PCI Parity and System errors.
499 bool "GRPCI2 Host Bridge Support"
503 Say Y here to include the GRPCI2 Host Bridge Driver.
505 source "drivers/pci/Kconfig"
507 source "drivers/pcmcia/Kconfig"
509 config SUN_OPENPROMFS
510 tristate "Openprom tree appears in /proc/openprom"
512 If you say Y, the OpenPROM device tree will be available as a
513 virtual file system, which you can mount to /proc/openprom by "mount
514 -t openpromfs none /proc/openprom".
516 To compile the /proc/openprom support as a module, choose M here: the
517 module will be called openpromfs.
519 Only choose N if you know in advance that you will not need to modify
520 OpenPROM settings on the running system.
526 depends on SPARC64 && PCI
528 config SPARC64_PCI_MSI
531 depends on SPARC64_PCI && PCI_MSI
535 menu "Executable file formats"
537 source "fs/Kconfig.binfmt"
543 select COMPAT_BINFMT_ELF
545 select ARCH_WANT_OLD_COMPAT_IPC
546 select COMPAT_OLD_SIGACTION
548 config SYSVIPC_COMPAT
550 depends on COMPAT && SYSVIPC
554 def_bool y if COMPAT && KEYS
560 source "drivers/Kconfig"
562 source "drivers/sbus/char/Kconfig"
566 source "arch/sparc/Kconfig.debug"
568 source "security/Kconfig"
570 source "crypto/Kconfig"