1 # sparc64 configuration
2 mainmenu "Linux Kernel Configuration for 64-bit SPARC"
14 select HAVE_DYNAMIC_FTRACE
19 select USE_GENERIC_SMP_HELPERS if SMP
20 select HAVE_ARCH_TRACEHOOK
21 select ARCH_WANT_OPTIONAL_GPIOLIB
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
99 menu "Processor type and features"
102 prompt "Kernel page size"
103 default SPARC64_PAGE_SIZE_8KB
105 config SPARC64_PAGE_SIZE_8KB
108 This lets you select the page size of the kernel.
110 8KB and 64KB work quite well, since SPARC ELF sections
111 provide for up to 64KB alignment.
113 If you don't know what to do, choose 8KB.
115 config SPARC64_PAGE_SIZE_64KB
121 bool "Enable seccomp to safely compute untrusted bytecode"
125 This kernel feature is useful for number crunching applications
126 that may need to compute untrusted bytecode during their
127 execution. By using pipes or other transports made available to
128 the process as file descriptors supporting the read/write
129 syscalls, it's possible to isolate those applications in
130 their own address space using seccomp. Once seccomp is
131 enabled via /proc/<pid>/seccomp, it cannot be disabled
132 and the task is only allowed to execute a few safe syscalls
133 defined by each seccomp mode.
135 If unsure, say Y. Only embedded should say N here.
137 source kernel/Kconfig.hz
140 bool "Support for hot-pluggable CPUs"
144 Say Y here to experiment with turning CPUs off and on. CPUs
145 can be controlled through /sys/devices/system/cpu/cpu#.
146 Say N if you want to disable CPU hotplug.
148 config GENERIC_HARDIRQS
152 source "kernel/time/Kconfig"
155 bool "Symmetric multi-processing support"
157 This enables support for systems with more than one CPU. If you have
158 a system with only one CPU, say N. If you have a system with more than
161 If you say N here, the kernel will run on single and multiprocessor
162 machines, but will use only one CPU of a multiprocessor machine. If
163 you say Y here, the kernel will run on single-processor machines.
164 On a single-processor machine, the kernel will run faster if you say
167 If you don't know what to do here, say N.
170 int "Maximum number of CPUs (2-1024)"
175 source "drivers/cpufreq/Kconfig"
178 tristate "UltraSPARC-III CPU Frequency driver"
180 select CPU_FREQ_TABLE
182 This adds the CPUFreq driver for UltraSPARC-III processors.
184 For details, take a look at <file:Documentation/cpu-freq>.
189 tristate "UltraSPARC-IIe CPU Frequency driver"
191 select CPU_FREQ_TABLE
193 This adds the CPUFreq driver for UltraSPARC-IIe processors.
195 For details, take a look at <file:Documentation/cpu-freq>.
200 tristate "UltraSPARC-III Memory Controller driver"
203 This adds a driver for the UltraSPARC-III memory controller.
204 Loading this driver allows exact mnemonic strings to be
205 printed in the event of a memory error, so that the faulty DIMM
206 on the motherboard can be matched to the error.
208 If in doubt, say Y, as this information can be very useful.
210 # Global things across all Sun machines.
211 config GENERIC_LOCKBREAK
214 depends on SMP && PREEMPT
216 config RWSEM_GENERIC_SPINLOCK
219 config RWSEM_XCHGADD_ALGORITHM
223 config GENERIC_FIND_NEXT_BIT
227 config GENERIC_HWEIGHT
229 default y if !ULTRA_HAS_POPULATION_COUNT
231 config GENERIC_CALIBRATE_DELAY
236 prompt "SPARC64 Huge TLB Page Size"
237 depends on HUGETLB_PAGE
238 default HUGETLB_PAGE_SIZE_4MB
240 config HUGETLB_PAGE_SIZE_4MB
243 config HUGETLB_PAGE_SIZE_512K
246 config HUGETLB_PAGE_SIZE_64K
247 depends on !SPARC64_PAGE_SIZE_64KB
260 depends on NEED_MULTIPLE_NODES
262 # Some NUMA nodes have memory ranges that span
263 # other nodes. Even though a pfn is valid and
264 # between a node's start and end pfns, it may not
265 # reside on that node. See memmap_init_zone()
267 config NODES_SPAN_OTHER_NODES
269 depends on NEED_MULTIPLE_NODES
271 config ARCH_POPULATES_NODE_MAP
274 config ARCH_SELECT_MEMORY_MODEL
277 config ARCH_SPARSEMEM_ENABLE
279 select SPARSEMEM_VMEMMAP_ENABLE
281 config ARCH_SPARSEMEM_DEFAULT
301 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
302 computer. These are credit-card size devices such as network cards,
303 modems or hard drives often used with laptops computers. There are
304 actually two varieties of these cards: the older 16 bit PCMCIA cards
305 and the newer 32 bit CardBus cards. If you want to use CardBus
306 cards, you need to say Y here and also to "CardBus support" below.
308 To use your PC-cards, you will need supporting software from David
309 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
310 for location). Please also read the PCMCIA-HOWTO, available from
311 <http://www.tldp.org/docs.html#howto>.
313 To compile this driver as modules, choose M here: the
314 modules will be called pcmcia_core and ds.
333 bool "Sun Logical Domains support"
335 Say Y here is you want to support virtual devices via
340 select ARCH_SUPPORTS_MSI
342 Find out whether your system includes a PCI bus. PCI is the name of
343 a bus system, i.e. the way the CPU talks to the other stuff inside
344 your box. If you say Y here, the kernel will include drivers and
345 infrastructure code to support PCI bus devices.
353 source "drivers/pci/Kconfig"
355 config SUN_OPENPROMFS
356 tristate "Openprom tree appears in /proc/openprom"
358 If you say Y, the OpenPROM device tree will be available as a
359 virtual file system, which you can mount to /proc/openprom by "mount
360 -t openpromfs none /proc/openprom".
362 To compile the /proc/openprom support as a module, choose M here: the
363 module will be called openpromfs. If unsure, choose M.
365 menu "Executable file formats"
367 source "fs/Kconfig.binfmt"
372 select COMPAT_BINFMT_ELF
374 config SYSVIPC_COMPAT
376 depends on COMPAT && SYSVIPC
382 bool "SMT (Hyperthreading) scheduler support"
386 SMT scheduler support improves the CPU scheduler's decision making
387 when dealing with SPARC cpus at a cost of slightly increased overhead
388 in some places. If unsure say N here.
391 bool "Multi-core scheduler support"
395 Multi-core scheduler support improves the CPU scheduler's decision
396 making when dealing with multi-core CPU chips at a cost of slightly
397 increased overhead in some places. If unsure say N here.
399 source "kernel/Kconfig.preempt"
402 bool "Default bootloader kernel arguments"
405 string "Initial kernel command string"
406 depends on CMDLINE_BOOL
407 default "console=ttyS0,9600 root=/dev/sda1"
409 Say Y here if you want to be able to pass default arguments to
410 the kernel. This will be overridden by the bootloader, if you
411 use one (such as SILO). This is most useful if you want to boot
412 a kernel from TFTP, and want default options to be available
413 with having them passed on the command line.
415 NOTE: This option WILL override the PROM bootargs setting!
419 source "drivers/Kconfig"
421 source "drivers/sbus/char/Kconfig"
425 source "arch/sparc64/Kconfig.debug"
427 source "security/Kconfig"
429 source "crypto/Kconfig"