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_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_DEBUG_KMEMLEAK
72 select RTC_DRV_STARFIRE
73 select HAVE_PERF_EVENTS
74 select PERF_USE_VMALLOC
75 select IRQ_PREFLOW_FASTEOI
76 select ARCH_HAVE_NMI_SAFE_CMPXCHG
77 select HAVE_C_RECORDMCOUNT
82 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
83 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
85 # CONFIG_BITS can be used at source level to get 32/64 bits
95 config STACKTRACE_SUPPORT
99 config LOCKDEP_SUPPORT
103 config HAVE_LATENCYTOP_SUPPORT
111 config HAVE_SETUP_PER_CPU_AREA
112 def_bool y if SPARC64
114 config NEED_PER_CPU_EMBED_FIRST_CHUNK
115 def_bool y if SPARC64
117 config NEED_PER_CPU_PAGE_FIRST_CHUNK
118 def_bool y if SPARC64
132 config NEED_DMA_MAP_STATE
135 config NEED_SG_DMA_LENGTH
138 config GENERIC_ISA_DMA
145 Generic GPIO API support
147 config ARCH_NO_VIRT_TO_BUS
150 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
151 def_bool y if SPARC64
153 source "init/Kconfig"
155 source "kernel/Kconfig.freezer"
157 menu "Processor type and features"
160 bool "Symmetric multi-processing support"
162 This enables support for systems with more than one CPU. If you have
163 a system with only one CPU, say N. If you have a system with more
166 If you say N here, the kernel will run on single and multiprocessor
167 machines, but will use only one CPU of a multiprocessor machine. If
168 you say Y here, the kernel will run on many, but not all,
169 singleprocessor machines. On a singleprocessor machine, the kernel
170 will run faster if you say N here.
172 People using multiprocessor machines who say Y here should also say
173 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
174 Management" code will be disabled if you say Y here.
176 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
177 available at <http://www.tldp.org/docs.html#howto>.
179 If you don't know what to do here, say N.
182 int "Maximum number of CPUs"
184 range 2 32 if SPARC32
185 range 2 1024 if SPARC64
186 default 32 if SPARC32
187 default 64 if SPARC64
189 source kernel/Kconfig.hz
191 config RWSEM_GENERIC_SPINLOCK
195 config RWSEM_XCHGADD_ALGORITHM
199 config GENERIC_HWEIGHT
201 default y if !ULTRA_HAS_POPULATION_COUNT
203 config GENERIC_CALIBRATE_DELAY
207 config ARCH_MAY_HAVE_PC_FDC
211 config EMULATED_CMPXCHG
215 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
216 is emulated, and therefore it is not completely atomic.
222 depends on SPARC32 && SMP
227 depends on SPARC64 && SMP
230 bool "Support for early boot text console"
234 Say Y here to enable a faster early framebuffer boot console.
237 bool "Enable seccomp to safely compute untrusted bytecode"
238 depends on SPARC64 && PROC_FS
241 This kernel feature is useful for number crunching applications
242 that may need to compute untrusted bytecode during their
243 execution. By using pipes or other transports made available to
244 the process as file descriptors supporting the read/write
245 syscalls, it's possible to isolate those applications in
246 their own address space using seccomp. Once seccomp is
247 enabled via /proc/<pid>/seccomp, it cannot be disabled
248 and the task is only allowed to execute a few safe syscalls
249 defined by each seccomp mode.
251 If unsure, say Y. Only embedded should say N here.
254 bool "Support for hot-pluggable CPUs"
255 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"
266 tristate "UltraSPARC-III CPU Frequency driver"
268 select CPU_FREQ_TABLE
270 This adds the CPUFreq driver for UltraSPARC-III processors.
272 For details, take a look at <file:Documentation/cpu-freq>.
277 tristate "UltraSPARC-IIe CPU Frequency driver"
279 select CPU_FREQ_TABLE
281 This adds the CPUFreq driver for UltraSPARC-IIe processors.
283 For details, take a look at <file:Documentation/cpu-freq>.
290 tristate "UltraSPARC-III Memory Controller driver"
294 This adds a driver for the UltraSPARC-III memory controller.
295 Loading this driver allows exact mnemonic strings to be
296 printed in the event of a memory error, so that the faulty DIMM
297 on the motherboard can be matched to the error.
299 If in doubt, say Y, as this information can be very useful.
301 # Global things across all Sun machines.
302 config GENERIC_LOCKBREAK
305 depends on SPARC64 && SMP && PREEMPT
309 depends on SPARC64 && SMP
314 depends on NEED_MULTIPLE_NODES
316 # Some NUMA nodes have memory ranges that span
317 # other nodes. Even though a pfn is valid and
318 # between a node's start and end pfns, it may not
319 # reside on that node. See memmap_init_zone()
321 config NODES_SPAN_OTHER_NODES
323 depends on NEED_MULTIPLE_NODES
325 config ARCH_SELECT_MEMORY_MODEL
326 def_bool y if SPARC64
328 config ARCH_SPARSEMEM_ENABLE
329 def_bool y if SPARC64
330 select SPARSEMEM_VMEMMAP_ENABLE
332 config ARCH_SPARSEMEM_DEFAULT
333 def_bool y if SPARC64
338 bool "SMT (Hyperthreading) scheduler support"
339 depends on SPARC64 && SMP
342 SMT scheduler support improves the CPU scheduler's decision making
343 when dealing with SPARC cpus at a cost of slightly increased overhead
344 in some places. If unsure say N here.
347 bool "Multi-core scheduler support"
348 depends on SPARC64 && SMP
351 Multi-core scheduler support improves the CPU scheduler's decision
352 making when dealing with multi-core CPU chips at a cost of slightly
353 increased overhead in some places. If unsure say N here.
355 source "kernel/Kconfig.preempt"
358 bool "Default bootloader kernel arguments"
362 string "Initial kernel command string"
363 depends on CMDLINE_BOOL
364 default "console=ttyS0,9600 root=/dev/sda1"
366 Say Y here if you want to be able to pass default arguments to
367 the kernel. This will be overridden by the bootloader, if you
368 use one (such as SILO). This is most useful if you want to boot
369 a kernel from TFTP, and want default options to be available
370 with having them passed on the command line.
372 NOTE: This option WILL override the PROM bootargs setting!
378 Enable power management and CPU standby features on supported
382 tristate "Sun4m LED driver"
385 This driver toggles the front-panel LED on sun4m systems
386 in a user-specifiable manner. Its state can be probed
387 by reading /proc/led and its blinking mode can be changed
388 via writes to /proc/led
390 config SERIAL_CONSOLE
395 If you say Y here, it will be possible to use a serial port as the
396 system console (the system console is the device which receives all
397 kernel messages and warnings and which allows logins in single user
398 mode). This could be useful if some terminal or printer is connected
401 Even if you say Y here, the currently visible virtual console
402 (/dev/tty0) will still be used as the system console by default, but
403 you can alter that using a kernel command line option such as
404 "console=ttyS1". (Try "man bootparam" or see the documentation of
405 your boot loader (silo) about how to pass options to the kernel at
408 If you don't have a graphics card installed and you say Y here, the
409 kernel will automatically use the first serial line, /dev/ttyS0, as
415 bool "Sparc Leon processor family"
418 If you say Y here if you are running on a SPARC-LEON processor.
419 The LEON processor is a synthesizable VHDL model of the
420 SPARC-v8 standard. LEON is part of the GRLIB collection of
421 IP cores that are distributed under GPL. GRLIB can be downloaded
422 from www.gaisler.com. You can download a sparc-linux cross-compilation
423 toolchain at www.gaisler.com.
426 menu "U-Boot options"
428 config UBOOT_LOAD_ADDR
429 hex "uImage Load Address"
432 U-Boot kernel load address, the address in physical address space
433 where u-boot will place the Linux kernel before booting it.
434 This address is normally the base address of main memory + 0x4000.
436 config UBOOT_FLASH_ADDR
437 hex "uImage.o Load Address"
440 Optional setting only affecting the uImage.o ELF-image used to
441 download the uImage file to the target using a ELF-loader other than
442 U-Boot. It may for example be used to download an uImage to FLASH with
443 the GRMON utility before even starting u-boot.
445 config UBOOT_ENTRY_ADDR
446 hex "uImage Entry Address"
449 Do not change this unless you know what you're doing. This is
450 hardcoded by the SPARC32 and LEON port.
452 This is the virtual address u-boot jumps to when booting the Linux
460 menu "Bus options (PCI etc.)"
470 bool "Sun Logical Domains support"
473 Say Y here is you want to support virtual devices via
477 bool "Support for PCI and PS/2 keyboard/mouse"
479 Find out whether your system includes a PCI bus. PCI is the name of
480 a bus system, i.e. the way the CPU talks to the other stuff inside
481 your box. If you say Y here, the kernel will include drivers and
482 infrastructure code to support PCI bus devices.
484 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
485 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
486 All of these platforms are extremely obscure, so say N if unsure.
489 def_bool PCI if SPARC64
496 depends on PCI && SPARC32 && !SPARC_LEON
501 depends on PCI && SPARC_LEON
505 bool "GRPCI2 Host Bridge Support"
509 Say Y here to include the GRPCI2 Host Bridge Driver.
511 source "drivers/pci/Kconfig"
513 source "drivers/pcmcia/Kconfig"
515 config SUN_OPENPROMFS
516 tristate "Openprom tree appears in /proc/openprom"
518 If you say Y, the OpenPROM device tree will be available as a
519 virtual file system, which you can mount to /proc/openprom by "mount
520 -t openpromfs none /proc/openprom".
522 To compile the /proc/openprom support as a module, choose M here: the
523 module will be called openpromfs.
525 Only choose N if you know in advance that you will not need to modify
526 OpenPROM settings on the running system.
532 depends on SPARC64 && PCI
536 menu "Executable file formats"
538 source "fs/Kconfig.binfmt"
544 select COMPAT_BINFMT_ELF
546 select ARCH_WANT_OLD_COMPAT_IPC
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"