1 # sparc64 configuration
2 mainmenu "Linux Kernel Configuration for 64-bit SPARC"
14 select HAVE_FUNCTION_TRACER
18 select USE_GENERIC_SMP_HELPERS if SMP
19 select HAVE_ARCH_TRACEHOOK
20 select ARCH_WANT_OPTIONAL_GPIOLIB
26 select RTC_DRV_STARFIRE
32 config GENERIC_CMOS_UPDATE
36 config GENERIC_CLOCKEVENTS
43 Generic GPIO API support
60 config STACKTRACE_SUPPORT
64 config LOCKDEP_SUPPORT
68 config ARCH_MAY_HAVE_PC_FDC
72 config ARCH_HAS_ILOG2_U32
76 config ARCH_HAS_ILOG2_U64
84 config HAVE_SETUP_PER_CPU_AREA
87 config ARCH_NO_VIRT_TO_BUS
93 config GENERIC_HARDIRQS_NO__DO_IRQ
98 source "kernel/Kconfig.freezer"
100 menu "Processor type and features"
103 prompt "Kernel page size"
104 default SPARC64_PAGE_SIZE_8KB
106 config SPARC64_PAGE_SIZE_8KB
109 This lets you select the page size of the kernel.
111 8KB and 64KB work quite well, since SPARC ELF sections
112 provide for up to 64KB alignment.
114 If you don't know what to do, choose 8KB.
116 config SPARC64_PAGE_SIZE_64KB
122 bool "Enable seccomp to safely compute untrusted bytecode"
126 This kernel feature is useful for number crunching applications
127 that may need to compute untrusted bytecode during their
128 execution. By using pipes or other transports made available to
129 the process as file descriptors supporting the read/write
130 syscalls, it's possible to isolate those applications in
131 their own address space using seccomp. Once seccomp is
132 enabled via /proc/<pid>/seccomp, it cannot be disabled
133 and the task is only allowed to execute a few safe syscalls
134 defined by each seccomp mode.
136 If unsure, say Y. Only embedded should say N here.
138 source kernel/Kconfig.hz
141 bool "Support for hot-pluggable CPUs"
145 Say Y here to experiment with turning CPUs off and on. CPUs
146 can be controlled through /sys/devices/system/cpu/cpu#.
147 Say N if you want to disable CPU hotplug.
149 config GENERIC_HARDIRQS
153 source "kernel/time/Kconfig"
156 bool "Symmetric multi-processing support"
158 This enables support for systems with more than one CPU. If you have
159 a system with only one CPU, say N. If you have a system with more than
162 If you say N here, the kernel will run on single and multiprocessor
163 machines, but will use only one CPU of a multiprocessor machine. If
164 you say Y here, the kernel will run on single-processor machines.
165 On a single-processor machine, the kernel will run faster if you say
168 If you don't know what to do here, say N.
171 int "Maximum number of CPUs (2-1024)"
176 source "drivers/cpufreq/Kconfig"
179 tristate "UltraSPARC-III CPU Frequency driver"
181 select CPU_FREQ_TABLE
183 This adds the CPUFreq driver for UltraSPARC-III processors.
185 For details, take a look at <file:Documentation/cpu-freq>.
190 tristate "UltraSPARC-IIe CPU Frequency driver"
192 select CPU_FREQ_TABLE
194 This adds the CPUFreq driver for UltraSPARC-IIe processors.
196 For details, take a look at <file:Documentation/cpu-freq>.
201 tristate "UltraSPARC-III Memory Controller driver"
204 This adds a driver for the UltraSPARC-III memory controller.
205 Loading this driver allows exact mnemonic strings to be
206 printed in the event of a memory error, so that the faulty DIMM
207 on the motherboard can be matched to the error.
209 If in doubt, say Y, as this information can be very useful.
211 # Global things across all Sun machines.
212 config GENERIC_LOCKBREAK
215 depends on SMP && PREEMPT
217 config RWSEM_GENERIC_SPINLOCK
220 config RWSEM_XCHGADD_ALGORITHM
224 config GENERIC_FIND_NEXT_BIT
228 config GENERIC_HWEIGHT
230 default y if !ULTRA_HAS_POPULATION_COUNT
232 config GENERIC_CALIBRATE_DELAY
237 prompt "SPARC64 Huge TLB Page Size"
238 depends on HUGETLB_PAGE
239 default HUGETLB_PAGE_SIZE_4MB
241 config HUGETLB_PAGE_SIZE_4MB
244 config HUGETLB_PAGE_SIZE_512K
247 config HUGETLB_PAGE_SIZE_64K
248 depends on !SPARC64_PAGE_SIZE_64KB
262 depends on NEED_MULTIPLE_NODES
264 # Some NUMA nodes have memory ranges that span
265 # other nodes. Even though a pfn is valid and
266 # between a node's start and end pfns, it may not
267 # reside on that node. See memmap_init_zone()
269 config NODES_SPAN_OTHER_NODES
271 depends on NEED_MULTIPLE_NODES
273 config ARCH_POPULATES_NODE_MAP
276 config ARCH_SELECT_MEMORY_MODEL
279 config ARCH_SPARSEMEM_ENABLE
281 select SPARSEMEM_VMEMMAP_ENABLE
283 config ARCH_SPARSEMEM_DEFAULT
303 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
304 computer. These are credit-card size devices such as network cards,
305 modems or hard drives often used with laptops computers. There are
306 actually two varieties of these cards: the older 16 bit PCMCIA cards
307 and the newer 32 bit CardBus cards. If you want to use CardBus
308 cards, you need to say Y here and also to "CardBus support" below.
310 To use your PC-cards, you will need supporting software from David
311 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
312 for location). Please also read the PCMCIA-HOWTO, available from
313 <http://www.tldp.org/docs.html#howto>.
315 To compile this driver as modules, choose M here: the
316 modules will be called pcmcia_core and ds.
335 bool "Sun Logical Domains support"
337 Say Y here is you want to support virtual devices via
342 select ARCH_SUPPORTS_MSI
344 Find out whether your system includes a PCI bus. PCI is the name of
345 a bus system, i.e. the way the CPU talks to the other stuff inside
346 your box. If you say Y here, the kernel will include drivers and
347 infrastructure code to support PCI bus devices.
355 source "drivers/pci/Kconfig"
357 config SUN_OPENPROMFS
358 tristate "Openprom tree appears in /proc/openprom"
360 If you say Y, the OpenPROM device tree will be available as a
361 virtual file system, which you can mount to /proc/openprom by "mount
362 -t openpromfs none /proc/openprom".
364 To compile the /proc/openprom support as a module, choose M here: the
365 module will be called openpromfs. If unsure, choose M.
367 menu "Executable file formats"
369 source "fs/Kconfig.binfmt"
374 select COMPAT_BINFMT_ELF
376 config SYSVIPC_COMPAT
378 depends on COMPAT && SYSVIPC
384 bool "SMT (Hyperthreading) scheduler support"
388 SMT scheduler support improves the CPU scheduler's decision making
389 when dealing with SPARC cpus at a cost of slightly increased overhead
390 in some places. If unsure say N here.
393 bool "Multi-core scheduler support"
397 Multi-core scheduler support improves the CPU scheduler's decision
398 making when dealing with multi-core CPU chips at a cost of slightly
399 increased overhead in some places. If unsure say N here.
401 source "kernel/Kconfig.preempt"
404 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!
421 source "drivers/Kconfig"
423 source "drivers/sbus/char/Kconfig"
427 source "arch/sparc64/Kconfig.debug"
429 source "security/Kconfig"
431 source "crypto/Kconfig"