1 # $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $
2 # For a description of the syntax of this configuration file,
3 # see the Configure script.
6 mainmenu "Linux/UltraSPARC Kernel Configuration"
13 <<<<<<< HEAD:arch/sparc64/Kconfig
15 select HAVE_KRETPROBES
16 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:arch/sparc64/Kconfig
23 SPARC is a family of RISC microprocessors designed and marketed by
24 Sun Microsystems, incorporated. This port covers the newer 64-bit
25 UltraSPARC. The UltraLinux project maintains both the SPARC32 and
26 SPARC64 ports; its web page is available at
27 <http://www.ultralinux.org/>.
33 config GENERIC_CMOS_UPDATE
37 config GENERIC_CLOCKEVENTS
56 config STACKTRACE_SUPPORT
60 config LOCKDEP_SUPPORT
64 config ARCH_MAY_HAVE_PC_FDC
68 config ARCH_HAS_ILOG2_U32
72 config ARCH_HAS_ILOG2_U64
80 config HAVE_SETUP_PER_CPU_AREA
83 config ARCH_NO_VIRT_TO_BUS
89 config GENERIC_HARDIRQS_NO__DO_IRQ
93 config ARCH_SUPPORTS_AOUT
97 prompt "Kernel page size"
98 default SPARC64_PAGE_SIZE_8KB
100 config SPARC64_PAGE_SIZE_8KB
103 This lets you select the page size of the kernel.
105 8KB and 64KB work quite well, since Sparc ELF sections
106 provide for up to 64KB alignment.
108 Therefore, 512KB and 4MB are for expert hackers only.
110 If you don't know what to do, choose 8KB.
112 config SPARC64_PAGE_SIZE_64KB
115 config SPARC64_PAGE_SIZE_512KB
118 config SPARC64_PAGE_SIZE_4MB
124 bool "Enable seccomp to safely compute untrusted bytecode"
128 This kernel feature is useful for number crunching applications
129 that may need to compute untrusted bytecode during their
130 execution. By using pipes or other transports made available to
131 the process as file descriptors supporting the read/write
132 syscalls, it's possible to isolate those applications in
133 their own address space using seccomp. Once seccomp is
134 enabled via /proc/<pid>/seccomp, it cannot be disabled
135 and the task is only allowed to execute a few safe syscalls
136 defined by each seccomp mode.
138 If unsure, say Y. Only embedded should say N here.
140 source kernel/Kconfig.hz
143 bool "Support for hot-pluggable CPUs"
147 Say Y here to experiment with turning CPUs off and on. CPUs
148 can be controlled through /sys/devices/system/cpu/cpu#.
149 Say N if you want to disable CPU hotplug.
151 source "init/Kconfig"
153 config SYSVIPC_COMPAT
155 depends on COMPAT && SYSVIPC
158 config GENERIC_HARDIRQS
162 menu "General machine setup"
164 source "kernel/time/Kconfig"
167 bool "Symmetric multi-processing support"
169 This enables support for systems with more than one CPU. If you have
170 a system with only one CPU, say N. If you have a system with more than
173 If you say N here, the kernel will run on single and multiprocessor
174 machines, but will use only one CPU of a multiprocessor machine. If
175 you say Y here, the kernel will run on many, but not all,
176 singleprocessor machines. On a singleprocessor machine, the kernel
177 will run faster if you say N here.
179 People using multiprocessor machines who say Y here should also say
180 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
181 Management" code will be disabled if you say Y here.
183 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
184 available at <http://www.tldp.org/docs.html#howto>.
186 If you don't know what to do here, say N.
189 int "Maximum number of CPUs (2-1024)"
194 source "drivers/cpufreq/Kconfig"
197 tristate "UltraSPARC-III CPU Frequency driver"
199 select CPU_FREQ_TABLE
201 This adds the CPUFreq driver for UltraSPARC-III processors.
203 For details, take a look at <file:Documentation/cpu-freq>.
208 tristate "UltraSPARC-IIe CPU Frequency driver"
210 select CPU_FREQ_TABLE
212 This adds the CPUFreq driver for UltraSPARC-IIe processors.
214 For details, take a look at <file:Documentation/cpu-freq>.
218 # Global things across all Sun machines.
219 config GENERIC_LOCKBREAK
222 depends on SMP && PREEMPT
224 config RWSEM_GENERIC_SPINLOCK
227 config RWSEM_XCHGADD_ALGORITHM
231 config GENERIC_FIND_NEXT_BIT
235 config GENERIC_HWEIGHT
237 default y if !ULTRA_HAS_POPULATION_COUNT
239 config GENERIC_CALIBRATE_DELAY
244 prompt "SPARC64 Huge TLB Page Size"
245 depends on HUGETLB_PAGE
246 default HUGETLB_PAGE_SIZE_4MB
248 config HUGETLB_PAGE_SIZE_4MB
251 config HUGETLB_PAGE_SIZE_512K
252 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
255 config HUGETLB_PAGE_SIZE_64K
256 depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
263 config ARCH_SELECT_MEMORY_MODEL
266 config ARCH_SPARSEMEM_ENABLE
268 select SPARSEMEM_VMEMMAP_ENABLE
270 config ARCH_SPARSEMEM_DEFAULT
278 Find out whether you have ISA slots on your motherboard. ISA is the
279 name of a bus system, i.e. the way the CPU talks to the other stuff
280 inside your box. Other bus systems are PCI, EISA, MicroChannel
281 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
282 newer boards don't support it. If you have ISA, say Y, otherwise N.
287 Say Y here if you would like support for ISA Plug and Play devices.
288 Some information is in <file:Documentation/isapnp.txt>.
290 To compile this driver as a module, choose M here: the
291 module will be called isapnp.
298 The Extended Industry Standard Architecture (EISA) bus was
299 developed as an open alternative to the IBM MicroChannel bus.
301 The EISA bus provided some of the features of the IBM MicroChannel
302 bus while maintaining backward compatibility with cards made for
303 the older ISA bus. The EISA bus saw limited use between 1988 and
304 1995 when it was made obsolete by the PCI bus.
306 Say Y here if you are building a kernel for an EISA-based machine.
313 MicroChannel Architecture is found in some IBM PS/2 machines and
314 laptops. It is a bus system similar to PCI or ISA. See
315 <file:Documentation/mca.txt> (and especially the web page given
316 there) before attempting to build an MCA bus kernel.
321 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
322 computer. These are credit-card size devices such as network cards,
323 modems or hard drives often used with laptops computers. There are
324 actually two varieties of these cards: the older 16 bit PCMCIA cards
325 and the newer 32 bit CardBus cards. If you want to use CardBus
326 cards, you need to say Y here and also to "CardBus support" below.
328 To use your PC-cards, you will need supporting software from David
329 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
330 for location). Please also read the PCMCIA-HOWTO, available from
331 <http://www.tldp.org/docs.html#howto>.
333 To compile this driver as modules, choose M here: the
334 modules will be called pcmcia_core and ds.
353 bool "Sun Logical Domains support"
355 Say Y here is you want to support virtual devices via
360 select ARCH_SUPPORTS_MSI
362 Find out whether you have a PCI motherboard. PCI is the name of a
363 bus system, i.e. the way the CPU talks to the other stuff inside
364 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
365 VESA. If you have PCI, say Y, otherwise N.
373 source "drivers/pci/Kconfig"
375 config SUN_OPENPROMFS
376 tristate "Openprom tree appears in /proc/openprom"
378 If you say Y, the OpenPROM device tree will be available as a
379 virtual file system, which you can mount to /proc/openprom by "mount
380 -t openpromfs none /proc/openprom".
382 To compile the /proc/openprom support as a module, choose M here: the
383 module will be called openpromfs. If unsure, choose M.
385 config SPARC32_COMPAT
386 bool "Kernel support for Linux/Sparc 32bit binary compatibility"
388 This allows you to run 32-bit binaries on your Ultra.
389 Everybody wants this; say Y.
393 depends on SPARC32_COMPAT
395 select COMPAT_BINFMT_ELF
398 bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"
399 depends on SPARC32_COMPAT && ARCH_SUPPORTS_AOUT
401 This allows you to run 32-bit a.out format binaries on your Ultra.
402 If you want to run SunOS binaries (see SunOS binary emulation below)
403 or other a.out binaries, say Y. If unsure, say N.
405 menu "Executable file formats"
407 source "fs/Kconfig.binfmt"
410 bool "SunOS binary emulation"
411 depends on BINFMT_AOUT32
413 This allows you to run most SunOS binaries. If you want to do this,
414 say Y here and place appropriate files in /usr/gnemul/sunos. See
415 <http://www.ultralinux.org/faq.html> for more information. If you
416 want to run SunOS binaries on an Ultra you must also say Y to
417 "Kernel support for 32-bit a.out binaries" above.
420 tristate "Solaris binary emulation (EXPERIMENTAL)"
421 depends on SPARC32_COMPAT && NET && EXPERIMENTAL
423 This is experimental code which will enable you to run (many)
424 Solaris binaries on your SPARC Linux machine.
426 To compile this code as a module, choose M here: the
427 module will be called solaris.
432 bool "SMT (Hyperthreading) scheduler support"
436 SMT scheduler support improves the CPU scheduler's decision making
437 when dealing with UltraSPARC cpus at a cost of slightly increased
438 overhead in some places. If unsure say N here.
441 bool "Multi-core scheduler support"
445 Multi-core scheduler support improves the CPU scheduler's decision
446 making when dealing with multi-core CPU chips at a cost of slightly
447 increased overhead in some places. If unsure say N here.
449 source "kernel/Kconfig.preempt"
452 bool "Default bootloader kernel arguments"
455 string "Initial kernel command string"
456 depends on CMDLINE_BOOL
457 default "console=ttyS0,9600 root=/dev/sda1"
459 Say Y here if you want to be able to pass default arguments to
460 the kernel. This will be overridden by the bootloader, if you
461 use one (such as SILO). This is most useful if you want to boot
462 a kernel from TFTP, and want default options to be available
463 with having them passed on the command line.
465 NOTE: This option WILL override the PROM bootargs setting!
469 source "drivers/Kconfig"
471 source "drivers/sbus/char/Kconfig"
475 source "arch/sparc64/Kconfig.debug"
477 source "security/Kconfig"
479 source "crypto/Kconfig"