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
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
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL
30 select HAVE_GENERIC_HARDIRQS
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select USE_GENERIC_SMP_HELPERS if SMP
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_CMOS_UPDATE
40 select GENERIC_CLOCKEVENTS
41 select GENERIC_STRNCPY_FROM_USER
42 select GENERIC_STRNLEN_USER
43 select MODULES_USE_ELF_RELA
47 select GENERIC_ATOMIC64
53 select ARCH_SUPPORTS_MSI
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
60 select HAVE_RCU_TABLE_FREE if SMP
62 select HAVE_MEMBLOCK_NODE_MAP
63 select HAVE_SYSCALL_WRAPPERS
64 select HAVE_DYNAMIC_FTRACE
65 select HAVE_FTRACE_MCOUNT_RECORD
66 select HAVE_SYSCALL_TRACEPOINTS
67 select HAVE_DEBUG_KMEMLEAK
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
81 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
82 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
84 # CONFIG_BITS can be used at source level to get 32/64 bits
94 config STACKTRACE_SUPPORT
98 config LOCKDEP_SUPPORT
102 config HAVE_LATENCYTOP_SUPPORT
110 config HAVE_SETUP_PER_CPU_AREA
111 def_bool y if SPARC64
113 config NEED_PER_CPU_EMBED_FIRST_CHUNK
114 def_bool y if SPARC64
116 config NEED_PER_CPU_PAGE_FIRST_CHUNK
117 def_bool y if SPARC64
131 config NEED_DMA_MAP_STATE
134 config NEED_SG_DMA_LENGTH
137 config GENERIC_ISA_DMA
144 Generic GPIO API support
146 config ARCH_NO_VIRT_TO_BUS
149 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
150 def_bool y if SPARC64
152 source "init/Kconfig"
154 source "kernel/Kconfig.freezer"
156 menu "Processor type and features"
159 bool "Symmetric multi-processing support"
161 This enables support for systems with more than one CPU. If you have
162 a system with only one CPU, say N. If you have a system with more
165 If you say N here, the kernel will run on single and multiprocessor
166 machines, but will use only one CPU of a multiprocessor machine. If
167 you say Y here, the kernel will run on many, but not all,
168 singleprocessor machines. On a singleprocessor machine, the kernel
169 will run faster if you say N here.
171 People using multiprocessor machines who say Y here should also say
172 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
173 Management" code will be disabled if you say Y here.
175 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
176 available at <http://www.tldp.org/docs.html#howto>.
178 If you don't know what to do here, say N.
181 int "Maximum number of CPUs"
183 range 2 32 if SPARC32
184 range 2 1024 if SPARC64
185 default 32 if SPARC32
186 default 64 if SPARC64
188 source kernel/Kconfig.hz
190 config RWSEM_GENERIC_SPINLOCK
194 config RWSEM_XCHGADD_ALGORITHM
198 config GENERIC_HWEIGHT
200 default y if !ULTRA_HAS_POPULATION_COUNT
202 config GENERIC_CALIBRATE_DELAY
206 config ARCH_MAY_HAVE_PC_FDC
210 config EMULATED_CMPXCHG
214 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
215 is emulated, and therefore it is not completely atomic.
221 depends on SPARC32 && SMP
226 depends on SPARC64 && SMP
229 bool "Support for early boot text console"
233 Say Y here to enable a faster early framebuffer boot console.
236 bool "Enable seccomp to safely compute untrusted bytecode"
237 depends on SPARC64 && PROC_FS
240 This kernel feature is useful for number crunching applications
241 that may need to compute untrusted bytecode during their
242 execution. By using pipes or other transports made available to
243 the process as file descriptors supporting the read/write
244 syscalls, it's possible to isolate those applications in
245 their own address space using seccomp. Once seccomp is
246 enabled via /proc/<pid>/seccomp, it cannot be disabled
247 and the task is only allowed to execute a few safe syscalls
248 defined by each seccomp mode.
250 If unsure, say Y. Only embedded should say N here.
253 bool "Support for hot-pluggable CPUs"
254 depends on SPARC64 && SMP
257 Say Y here to experiment with turning CPUs off and on. CPUs
258 can be controlled through /sys/devices/system/cpu/cpu#.
259 Say N if you want to disable CPU hotplug.
262 source "drivers/cpufreq/Kconfig"
265 tristate "UltraSPARC-III CPU Frequency driver"
267 select CPU_FREQ_TABLE
269 This adds the CPUFreq driver for UltraSPARC-III processors.
271 For details, take a look at <file:Documentation/cpu-freq>.
276 tristate "UltraSPARC-IIe CPU Frequency driver"
278 select CPU_FREQ_TABLE
280 This adds the CPUFreq driver for UltraSPARC-IIe processors.
282 For details, take a look at <file:Documentation/cpu-freq>.
289 tristate "UltraSPARC-III Memory Controller driver"
293 This adds a driver for the UltraSPARC-III memory controller.
294 Loading this driver allows exact mnemonic strings to be
295 printed in the event of a memory error, so that the faulty DIMM
296 on the motherboard can be matched to the error.
298 If in doubt, say Y, as this information can be very useful.
300 # Global things across all Sun machines.
301 config GENERIC_LOCKBREAK
304 depends on SPARC64 && SMP && PREEMPT
308 depends on SPARC64 && SMP
313 depends on NEED_MULTIPLE_NODES
315 # Some NUMA nodes have memory ranges that span
316 # other nodes. Even though a pfn is valid and
317 # between a node's start and end pfns, it may not
318 # reside on that node. See memmap_init_zone()
320 config NODES_SPAN_OTHER_NODES
322 depends on NEED_MULTIPLE_NODES
324 config ARCH_SELECT_MEMORY_MODEL
325 def_bool y if SPARC64
327 config ARCH_SPARSEMEM_ENABLE
328 def_bool y if SPARC64
329 select SPARSEMEM_VMEMMAP_ENABLE
331 config ARCH_SPARSEMEM_DEFAULT
332 def_bool y if SPARC64
337 bool "SMT (Hyperthreading) scheduler support"
338 depends on SPARC64 && SMP
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.
346 bool "Multi-core scheduler support"
347 depends on SPARC64 && SMP
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.
354 source "kernel/Kconfig.preempt"
357 bool "Default bootloader kernel arguments"
361 string "Initial kernel command string"
362 depends on CMDLINE_BOOL
363 default "console=ttyS0,9600 root=/dev/sda1"
365 Say Y here if you want to be able to pass default arguments to
366 the kernel. This will be overridden by the bootloader, if you
367 use one (such as SILO). This is most useful if you want to boot
368 a kernel from TFTP, and want default options to be available
369 with having them passed on the command line.
371 NOTE: This option WILL override the PROM bootargs setting!
377 Enable power management and CPU standby features on supported
381 tristate "Sun4m LED driver"
384 This driver toggles the front-panel LED on sun4m systems
385 in a user-specifiable manner. Its state can be probed
386 by reading /proc/led and its blinking mode can be changed
387 via writes to /proc/led
389 config SERIAL_CONSOLE
394 If you say Y here, it will be possible to use a serial port as the
395 system console (the system console is the device which receives all
396 kernel messages and warnings and which allows logins in single user
397 mode). This could be useful if some terminal or printer is connected
400 Even if you say Y here, the currently visible virtual console
401 (/dev/tty0) will still be used as the system console by default, but
402 you can alter that using a kernel command line option such as
403 "console=ttyS1". (Try "man bootparam" or see the documentation of
404 your boot loader (silo) about how to pass options to the kernel at
407 If you don't have a graphics card installed and you say Y here, the
408 kernel will automatically use the first serial line, /dev/ttyS0, as
414 bool "Sparc Leon processor family"
417 If you say Y here if you are running on a SPARC-LEON processor.
418 The LEON processor is a synthesizable VHDL model of the
419 SPARC-v8 standard. LEON is part of the GRLIB collection of
420 IP cores that are distributed under GPL. GRLIB can be downloaded
421 from www.gaisler.com. You can download a sparc-linux cross-compilation
422 toolchain at www.gaisler.com.
425 menu "U-Boot options"
427 config UBOOT_LOAD_ADDR
428 hex "uImage Load Address"
431 U-Boot kernel load address, the address in physical address space
432 where u-boot will place the Linux kernel before booting it.
433 This address is normally the base address of main memory + 0x4000.
435 config UBOOT_FLASH_ADDR
436 hex "uImage.o Load Address"
439 Optional setting only affecting the uImage.o ELF-image used to
440 download the uImage file to the target using a ELF-loader other than
441 U-Boot. It may for example be used to download an uImage to FLASH with
442 the GRMON utility before even starting u-boot.
444 config UBOOT_ENTRY_ADDR
445 hex "uImage Entry Address"
448 Do not change this unless you know what you're doing. This is
449 hardcoded by the SPARC32 and LEON port.
451 This is the virtual address u-boot jumps to when booting the Linux
459 menu "Bus options (PCI etc.)"
469 bool "Sun Logical Domains support"
472 Say Y here is you want to support virtual devices via
476 bool "Support for PCI and PS/2 keyboard/mouse"
478 Find out whether your system includes a PCI bus. PCI is the name of
479 a bus system, i.e. the way the CPU talks to the other stuff inside
480 your box. If you say Y here, the kernel will include drivers and
481 infrastructure code to support PCI bus devices.
483 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
484 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
485 All of these platforms are extremely obscure, so say N if unsure.
488 def_bool PCI if SPARC64
495 depends on PCI && SPARC32 && !SPARC_LEON
500 depends on PCI && SPARC_LEON
504 bool "GRPCI2 Host Bridge Support"
508 Say Y here to include the GRPCI2 Host Bridge Driver.
510 source "drivers/pci/Kconfig"
512 source "drivers/pcmcia/Kconfig"
514 config SUN_OPENPROMFS
515 tristate "Openprom tree appears in /proc/openprom"
517 If you say Y, the OpenPROM device tree will be available as a
518 virtual file system, which you can mount to /proc/openprom by "mount
519 -t openpromfs none /proc/openprom".
521 To compile the /proc/openprom support as a module, choose M here: the
522 module will be called openpromfs.
524 Only choose N if you know in advance that you will not need to modify
525 OpenPROM settings on the running system.
531 depends on SPARC64 && PCI
535 menu "Executable file formats"
537 source "fs/Kconfig.binfmt"
543 select COMPAT_BINFMT_ELF
545 select ARCH_WANT_OLD_COMPAT_IPC
547 config SYSVIPC_COMPAT
549 depends on COMPAT && SYSVIPC
553 def_bool y if COMPAT && KEYS
559 source "drivers/Kconfig"
561 source "drivers/sbus/char/Kconfig"
565 source "arch/sparc/Kconfig.debug"
567 source "security/Kconfig"
569 source "crypto/Kconfig"