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 ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
34 select ARCH_SUPPORTS_MSI
35 select HAVE_FUNCTION_TRACER
36 select HAVE_FUNCTION_GRAPH_TRACER
37 select HAVE_FUNCTION_GRAPH_FP_TEST
38 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
39 select HAVE_KRETPROBES
42 select HAVE_SYSCALL_WRAPPERS
43 select HAVE_DYNAMIC_FTRACE
44 select HAVE_FTRACE_MCOUNT_RECORD
45 select HAVE_SYSCALL_TRACEPOINTS
46 select USE_GENERIC_SMP_HELPERS if SMP
50 select RTC_DRV_STARFIRE
51 select HAVE_PERF_EVENTS
52 select PERF_USE_VMALLOC
56 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
57 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
59 # CONFIG_BITS can be used at source level to get 32/64 bits
65 config ARCH_USES_GETTIMEOFFSET
69 config GENERIC_CMOS_UPDATE
73 config GENERIC_CLOCKEVENTS
85 config STACKTRACE_SUPPORT
89 config LOCKDEP_SUPPORT
93 config HAVE_LATENCYTOP_SUPPORT
101 config HAVE_SETUP_PER_CPU_AREA
102 def_bool y if SPARC64
104 config NEED_PER_CPU_EMBED_FIRST_CHUNK
105 def_bool y if SPARC64
107 config NEED_PER_CPU_PAGE_FIRST_CHUNK
108 def_bool y if SPARC64
110 config GENERIC_HARDIRQS_NO__DO_IRQ
112 def_bool y if SPARC64
126 config NEED_DMA_MAP_STATE
129 config NEED_SG_DMA_LENGTH
132 config GENERIC_ISA_DMA
139 Generic GPIO API support
141 config ARCH_NO_VIRT_TO_BUS
144 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
145 def_bool y if SPARC64
147 source "init/Kconfig"
149 source "kernel/Kconfig.freezer"
151 menu "Processor type and features"
154 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
156 This enables support for systems with more than one CPU. If you have
157 a system with only one CPU, say N. If you have a system with more
160 If you say N here, the kernel will run on single and multiprocessor
161 machines, but will use only one CPU of a multiprocessor machine. If
162 you say Y here, the kernel will run on many, but not all,
163 singleprocessor machines. On a singleprocessor machine, the kernel
164 will run faster if you say N here.
166 People using multiprocessor machines who say Y here should also say
167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
168 Management" code will be disabled if you say Y here.
170 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
171 available at <http://www.tldp.org/docs.html#howto>.
173 If you don't know what to do here, say N.
176 int "Maximum number of CPUs"
178 range 2 32 if SPARC32
179 range 2 1024 if SPARC64
180 default 32 if SPARC32
181 default 64 if SPARC64
183 source kernel/Kconfig.hz
185 config RWSEM_GENERIC_SPINLOCK
189 config RWSEM_XCHGADD_ALGORITHM
193 config GENERIC_FIND_NEXT_BIT
197 config GENERIC_HWEIGHT
199 default y if !ULTRA_HAS_POPULATION_COUNT
201 config GENERIC_CALIBRATE_DELAY
205 config ARCH_MAY_HAVE_PC_FDC
209 config EMULATED_CMPXCHG
213 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
214 is emulated, and therefore it is not completely atomic.
220 depends on SPARC32 && SMP
225 depends on SPARC64 && SMP
228 bool "Support for early boot text console"
232 Say Y here to enable a faster early framebuffer boot console.
235 prompt "Kernel page size" if SPARC64
236 default SPARC64_PAGE_SIZE_8KB
238 config SPARC64_PAGE_SIZE_8KB
241 This lets you select the page size of the kernel.
243 8KB and 64KB work quite well, since SPARC ELF sections
244 provide for up to 64KB alignment.
246 If you don't know what to do, choose 8KB.
248 config SPARC64_PAGE_SIZE_64KB
254 bool "Enable seccomp to safely compute untrusted bytecode"
255 depends on SPARC64 && PROC_FS
258 This kernel feature is useful for number crunching applications
259 that may need to compute untrusted bytecode during their
260 execution. By using pipes or other transports made available to
261 the process as file descriptors supporting the read/write
262 syscalls, it's possible to isolate those applications in
263 their own address space using seccomp. Once seccomp is
264 enabled via /proc/<pid>/seccomp, it cannot be disabled
265 and the task is only allowed to execute a few safe syscalls
266 defined by each seccomp mode.
268 If unsure, say Y. Only embedded should say N here.
271 bool "Support for hot-pluggable CPUs"
272 depends on SPARC64 && SMP
275 Say Y here to experiment with turning CPUs off and on. CPUs
276 can be controlled through /sys/devices/system/cpu/cpu#.
277 Say N if you want to disable CPU hotplug.
279 config GENERIC_HARDIRQS
283 source "kernel/time/Kconfig"
286 source "drivers/cpufreq/Kconfig"
289 tristate "UltraSPARC-III CPU Frequency driver"
291 select CPU_FREQ_TABLE
293 This adds the CPUFreq driver for UltraSPARC-III processors.
295 For details, take a look at <file:Documentation/cpu-freq>.
300 tristate "UltraSPARC-IIe CPU Frequency driver"
302 select CPU_FREQ_TABLE
304 This adds the CPUFreq driver for UltraSPARC-IIe processors.
306 For details, take a look at <file:Documentation/cpu-freq>.
313 tristate "UltraSPARC-III Memory Controller driver"
317 This adds a driver for the UltraSPARC-III memory controller.
318 Loading this driver allows exact mnemonic strings to be
319 printed in the event of a memory error, so that the faulty DIMM
320 on the motherboard can be matched to the error.
322 If in doubt, say Y, as this information can be very useful.
324 # Global things across all Sun machines.
325 config GENERIC_LOCKBREAK
328 depends on SPARC64 && SMP && PREEMPT
331 prompt "SPARC64 Huge TLB Page Size"
332 depends on SPARC64 && HUGETLB_PAGE
333 default HUGETLB_PAGE_SIZE_4MB
335 config HUGETLB_PAGE_SIZE_4MB
338 config HUGETLB_PAGE_SIZE_512K
341 config HUGETLB_PAGE_SIZE_64K
342 depends on !SPARC64_PAGE_SIZE_64KB
349 depends on SPARC64 && SMP
354 depends on NEED_MULTIPLE_NODES
356 # Some NUMA nodes have memory ranges that span
357 # other nodes. Even though a pfn is valid and
358 # between a node's start and end pfns, it may not
359 # reside on that node. See memmap_init_zone()
361 config NODES_SPAN_OTHER_NODES
363 depends on NEED_MULTIPLE_NODES
365 config ARCH_POPULATES_NODE_MAP
366 def_bool y if SPARC64
368 config ARCH_SELECT_MEMORY_MODEL
369 def_bool y if SPARC64
371 config ARCH_SPARSEMEM_ENABLE
372 def_bool y if SPARC64
373 select SPARSEMEM_VMEMMAP_ENABLE
375 config ARCH_SPARSEMEM_DEFAULT
376 def_bool y if SPARC64
381 bool "SMT (Hyperthreading) scheduler support"
382 depends on SPARC64 && SMP
385 SMT scheduler support improves the CPU scheduler's decision making
386 when dealing with SPARC cpus at a cost of slightly increased overhead
387 in some places. If unsure say N here.
390 bool "Multi-core scheduler support"
391 depends on SPARC64 && SMP
394 Multi-core scheduler support improves the CPU scheduler's decision
395 making when dealing with multi-core CPU chips at a cost of slightly
396 increased overhead in some places. If unsure say N here.
399 source "kernel/Kconfig.preempt"
403 bool "Default bootloader kernel arguments"
407 string "Initial kernel command string"
408 depends on CMDLINE_BOOL
409 default "console=ttyS0,9600 root=/dev/sda1"
411 Say Y here if you want to be able to pass default arguments to
412 the kernel. This will be overridden by the bootloader, if you
413 use one (such as SILO). This is most useful if you want to boot
414 a kernel from TFTP, and want default options to be available
415 with having them passed on the command line.
417 NOTE: This option WILL override the PROM bootargs setting!
423 Enable power management and CPU standby features on supported
427 tristate "Sun4m LED driver"
430 This driver toggles the front-panel LED on sun4m systems
431 in a user-specifiable manner. Its state can be probed
432 by reading /proc/led and its blinking mode can be changed
433 via writes to /proc/led
435 config SERIAL_CONSOLE
440 If you say Y here, it will be possible to use a serial port as the
441 system console (the system console is the device which receives all
442 kernel messages and warnings and which allows logins in single user
443 mode). This could be useful if some terminal or printer is connected
446 Even if you say Y here, the currently visible virtual console
447 (/dev/tty0) will still be used as the system console by default, but
448 you can alter that using a kernel command line option such as
449 "console=ttyS1". (Try "man bootparam" or see the documentation of
450 your boot loader (silo) about how to pass options to the kernel at
453 If you don't have a graphics card installed and you say Y here, the
454 kernel will automatically use the first serial line, /dev/ttyS0, as
460 bool "Sparc Leon processor family"
463 If you say Y here if you are running on a SPARC-LEON processor.
464 The LEON processor is a synthesizable VHDL model of the
465 SPARC-v8 standard. LEON is part of the GRLIB collection of
466 IP cores that are distributed under GPL. GRLIB can be downloaded
467 from www.gaisler.com. You can download a sparc-linux cross-compilation
468 toolchain at www.gaisler.com.
472 menu "Bus options (PCI etc.)"
482 bool "Sun Logical Domains support"
485 Say Y here is you want to support virtual devices via
489 bool "Support for PCI and PS/2 keyboard/mouse"
491 Find out whether your system includes a PCI bus. PCI is the name of
492 a bus system, i.e. the way the CPU talks to the other stuff inside
493 your box. If you say Y here, the kernel will include drivers and
494 infrastructure code to support PCI bus devices.
496 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
497 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
498 All of these platforms are extremely obscure, so say N if unsure.
501 def_bool PCI if SPARC64
506 source "drivers/pci/Kconfig"
508 source "drivers/pcmcia/Kconfig"
510 config SUN_OPENPROMFS
511 tristate "Openprom tree appears in /proc/openprom"
513 If you say Y, the OpenPROM device tree will be available as a
514 virtual file system, which you can mount to /proc/openprom by "mount
515 -t openpromfs none /proc/openprom".
517 To compile the /proc/openprom support as a module, choose M here: the
518 module will be called openpromfs.
520 Only choose N if you know in advance that you will not need to modify
521 OpenPROM settings on the running system.
527 depends on SPARC32 && PCI
532 depends on SPARC64 && PCI
536 menu "Executable file formats"
538 source "fs/Kconfig.binfmt"
544 select COMPAT_BINFMT_ELF
546 config SYSVIPC_COMPAT
548 depends on COMPAT && SYSVIPC
555 source "drivers/Kconfig"
557 source "drivers/sbus/char/Kconfig"
561 source "arch/sparc/Kconfig.debug"
563 source "security/Kconfig"
565 source "crypto/Kconfig"