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
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select USE_GENERIC_SMP_HELPERS if SMP
37 select ARCH_SUPPORTS_MSI
38 select HAVE_FUNCTION_TRACER
39 select HAVE_FUNCTION_GRAPH_TRACER
40 select HAVE_FUNCTION_GRAPH_FP_TEST
41 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
42 select HAVE_KRETPROBES
45 select HAVE_SYSCALL_WRAPPERS
46 select HAVE_DYNAMIC_FTRACE
47 select HAVE_FTRACE_MCOUNT_RECORD
48 select HAVE_SYSCALL_TRACEPOINTS
52 select RTC_DRV_STARFIRE
53 select HAVE_PERF_EVENTS
54 select PERF_USE_VMALLOC
55 select IRQ_PREFLOW_FASTEOI
59 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
60 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
62 # CONFIG_BITS can be used at source level to get 32/64 bits
68 config ARCH_USES_GETTIMEOFFSET
72 config GENERIC_CMOS_UPDATE
76 config GENERIC_CLOCKEVENTS
88 config STACKTRACE_SUPPORT
92 config LOCKDEP_SUPPORT
96 config HAVE_LATENCYTOP_SUPPORT
104 config HAVE_SETUP_PER_CPU_AREA
105 def_bool y if SPARC64
107 config NEED_PER_CPU_EMBED_FIRST_CHUNK
108 def_bool y if SPARC64
110 config NEED_PER_CPU_PAGE_FIRST_CHUNK
111 def_bool y if SPARC64
125 config NEED_DMA_MAP_STATE
128 config NEED_SG_DMA_LENGTH
131 config GENERIC_ISA_DMA
138 Generic GPIO API support
140 config ARCH_NO_VIRT_TO_BUS
143 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
144 def_bool y if SPARC64
146 source "init/Kconfig"
148 source "kernel/Kconfig.freezer"
150 menu "Processor type and features"
153 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
155 This enables support for systems with more than one CPU. If you have
156 a system with only one CPU, say N. If you have a system with more
159 If you say N here, the kernel will run on single and multiprocessor
160 machines, but will use only one CPU of a multiprocessor machine. If
161 you say Y here, the kernel will run on many, but not all,
162 singleprocessor machines. On a singleprocessor machine, the kernel
163 will run faster if you say N here.
165 People using multiprocessor machines who say Y here should also say
166 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
167 Management" code will be disabled if you say Y here.
169 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
170 available at <http://www.tldp.org/docs.html#howto>.
172 If you don't know what to do here, say N.
175 int "Maximum number of CPUs"
177 range 2 32 if SPARC32
178 range 2 1024 if SPARC64
179 default 32 if SPARC32
180 default 64 if SPARC64
182 source kernel/Kconfig.hz
184 config RWSEM_GENERIC_SPINLOCK
188 config RWSEM_XCHGADD_ALGORITHM
192 config GENERIC_HWEIGHT
194 default y if !ULTRA_HAS_POPULATION_COUNT
196 config GENERIC_CALIBRATE_DELAY
200 config ARCH_MAY_HAVE_PC_FDC
204 config EMULATED_CMPXCHG
208 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
209 is emulated, and therefore it is not completely atomic.
215 depends on SPARC32 && SMP
220 depends on SPARC64 && SMP
223 bool "Support for early boot text console"
227 Say Y here to enable a faster early framebuffer boot console.
230 prompt "Kernel page size" if SPARC64
231 default SPARC64_PAGE_SIZE_8KB
233 config SPARC64_PAGE_SIZE_8KB
236 This lets you select the page size of the kernel.
238 8KB and 64KB work quite well, since SPARC ELF sections
239 provide for up to 64KB alignment.
241 If you don't know what to do, choose 8KB.
243 config SPARC64_PAGE_SIZE_64KB
249 bool "Enable seccomp to safely compute untrusted bytecode"
250 depends on SPARC64 && PROC_FS
253 This kernel feature is useful for number crunching applications
254 that may need to compute untrusted bytecode during their
255 execution. By using pipes or other transports made available to
256 the process as file descriptors supporting the read/write
257 syscalls, it's possible to isolate those applications in
258 their own address space using seccomp. Once seccomp is
259 enabled via /proc/<pid>/seccomp, it cannot be disabled
260 and the task is only allowed to execute a few safe syscalls
261 defined by each seccomp mode.
263 If unsure, say Y. Only embedded should say N here.
266 bool "Support for hot-pluggable CPUs"
267 depends on SPARC64 && SMP
270 Say Y here to experiment with turning CPUs off and on. CPUs
271 can be controlled through /sys/devices/system/cpu/cpu#.
272 Say N if you want to disable CPU hotplug.
274 source "kernel/time/Kconfig"
277 source "drivers/cpufreq/Kconfig"
280 tristate "UltraSPARC-III CPU Frequency driver"
282 select CPU_FREQ_TABLE
284 This adds the CPUFreq driver for UltraSPARC-III processors.
286 For details, take a look at <file:Documentation/cpu-freq>.
291 tristate "UltraSPARC-IIe CPU Frequency driver"
293 select CPU_FREQ_TABLE
295 This adds the CPUFreq driver for UltraSPARC-IIe processors.
297 For details, take a look at <file:Documentation/cpu-freq>.
304 tristate "UltraSPARC-III Memory Controller driver"
308 This adds a driver for the UltraSPARC-III memory controller.
309 Loading this driver allows exact mnemonic strings to be
310 printed in the event of a memory error, so that the faulty DIMM
311 on the motherboard can be matched to the error.
313 If in doubt, say Y, as this information can be very useful.
315 # Global things across all Sun machines.
316 config GENERIC_LOCKBREAK
319 depends on SPARC64 && SMP && PREEMPT
322 prompt "SPARC64 Huge TLB Page Size"
323 depends on SPARC64 && HUGETLB_PAGE
324 default HUGETLB_PAGE_SIZE_4MB
326 config HUGETLB_PAGE_SIZE_4MB
329 config HUGETLB_PAGE_SIZE_512K
332 config HUGETLB_PAGE_SIZE_64K
333 depends on !SPARC64_PAGE_SIZE_64KB
340 depends on SPARC64 && SMP
345 depends on NEED_MULTIPLE_NODES
347 # Some NUMA nodes have memory ranges that span
348 # other nodes. Even though a pfn is valid and
349 # between a node's start and end pfns, it may not
350 # reside on that node. See memmap_init_zone()
352 config NODES_SPAN_OTHER_NODES
354 depends on NEED_MULTIPLE_NODES
356 config ARCH_POPULATES_NODE_MAP
357 def_bool y if SPARC64
359 config ARCH_SELECT_MEMORY_MODEL
360 def_bool y if SPARC64
362 config ARCH_SPARSEMEM_ENABLE
363 def_bool y if SPARC64
364 select SPARSEMEM_VMEMMAP_ENABLE
366 config ARCH_SPARSEMEM_DEFAULT
367 def_bool y if SPARC64
372 bool "SMT (Hyperthreading) scheduler support"
373 depends on SPARC64 && SMP
376 SMT scheduler support improves the CPU scheduler's decision making
377 when dealing with SPARC cpus at a cost of slightly increased overhead
378 in some places. If unsure say N here.
381 bool "Multi-core scheduler support"
382 depends on SPARC64 && SMP
385 Multi-core scheduler support improves the CPU scheduler's decision
386 making when dealing with multi-core CPU chips at a cost of slightly
387 increased overhead in some places. If unsure say N here.
390 source "kernel/Kconfig.preempt"
394 bool "Default bootloader kernel arguments"
398 string "Initial kernel command string"
399 depends on CMDLINE_BOOL
400 default "console=ttyS0,9600 root=/dev/sda1"
402 Say Y here if you want to be able to pass default arguments to
403 the kernel. This will be overridden by the bootloader, if you
404 use one (such as SILO). This is most useful if you want to boot
405 a kernel from TFTP, and want default options to be available
406 with having them passed on the command line.
408 NOTE: This option WILL override the PROM bootargs setting!
414 Enable power management and CPU standby features on supported
418 tristate "Sun4m LED driver"
421 This driver toggles the front-panel LED on sun4m systems
422 in a user-specifiable manner. Its state can be probed
423 by reading /proc/led and its blinking mode can be changed
424 via writes to /proc/led
426 config SERIAL_CONSOLE
431 If you say Y here, it will be possible to use a serial port as the
432 system console (the system console is the device which receives all
433 kernel messages and warnings and which allows logins in single user
434 mode). This could be useful if some terminal or printer is connected
437 Even if you say Y here, the currently visible virtual console
438 (/dev/tty0) will still be used as the system console by default, but
439 you can alter that using a kernel command line option such as
440 "console=ttyS1". (Try "man bootparam" or see the documentation of
441 your boot loader (silo) about how to pass options to the kernel at
444 If you don't have a graphics card installed and you say Y here, the
445 kernel will automatically use the first serial line, /dev/ttyS0, as
451 bool "Sparc Leon processor family"
454 If you say Y here if you are running on a SPARC-LEON processor.
455 The LEON processor is a synthesizable VHDL model of the
456 SPARC-v8 standard. LEON is part of the GRLIB collection of
457 IP cores that are distributed under GPL. GRLIB can be downloaded
458 from www.gaisler.com. You can download a sparc-linux cross-compilation
459 toolchain at www.gaisler.com.
462 menu "U-Boot options"
464 config UBOOT_LOAD_ADDR
465 hex "uImage Load Address"
468 U-Boot kernel load address, the address in physical address space
469 where u-boot will place the Linux kernel before booting it.
470 This address is normally the base address of main memory + 0x4000.
472 config UBOOT_FLASH_ADDR
473 hex "uImage.o Load Address"
476 Optional setting only affecting the uImage.o ELF-image used to
477 download the uImage file to the target using a ELF-loader other than
478 U-Boot. It may for example be used to download an uImage to FLASH with
479 the GRMON utility before even starting u-boot.
481 config UBOOT_ENTRY_ADDR
482 hex "uImage Entry Address"
485 Do not change this unless you know what you're doing. This is
486 hardcoded by the SPARC32 and LEON port.
488 This is the virtual address u-boot jumps to when booting the Linux
496 menu "Bus options (PCI etc.)"
506 bool "Sun Logical Domains support"
509 Say Y here is you want to support virtual devices via
513 bool "Support for PCI and PS/2 keyboard/mouse"
515 Find out whether your system includes a PCI bus. PCI is the name of
516 a bus system, i.e. the way the CPU talks to the other stuff inside
517 your box. If you say Y here, the kernel will include drivers and
518 infrastructure code to support PCI bus devices.
520 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
521 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
522 All of these platforms are extremely obscure, so say N if unsure.
525 def_bool PCI if SPARC64
532 depends on PCI && SPARC32 && !SPARC_LEON
537 depends on PCI && SPARC_LEON
541 bool "GRPCI2 Host Bridge Support"
545 Say Y here to include the GRPCI2 Host Bridge Driver.
547 source "drivers/pci/Kconfig"
549 source "drivers/pcmcia/Kconfig"
551 config SUN_OPENPROMFS
552 tristate "Openprom tree appears in /proc/openprom"
554 If you say Y, the OpenPROM device tree will be available as a
555 virtual file system, which you can mount to /proc/openprom by "mount
556 -t openpromfs none /proc/openprom".
558 To compile the /proc/openprom support as a module, choose M here: the
559 module will be called openpromfs.
561 Only choose N if you know in advance that you will not need to modify
562 OpenPROM settings on the running system.
568 depends on SPARC32 && PCI
573 depends on SPARC64 && PCI
577 menu "Executable file formats"
579 source "fs/Kconfig.binfmt"
585 select COMPAT_BINFMT_ELF
587 config SYSVIPC_COMPAT
589 depends on COMPAT && SYSVIPC
596 source "drivers/Kconfig"
598 source "drivers/sbus/char/Kconfig"
602 source "arch/sparc/Kconfig.debug"
604 source "security/Kconfig"
606 source "crypto/Kconfig"