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 SYSCTL_EXCEPTION_TRACE
22 select ARCH_WANT_OPTIONAL_GPIOLIB
27 select HAVE_DMA_API_DEBUG
28 select HAVE_ARCH_JUMP_LABEL
29 select HAVE_GENERIC_HARDIRQS
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select USE_GENERIC_SMP_HELPERS if SMP
33 select GENERIC_PCI_IOMAP
34 select HAVE_NMI_WATCHDOG if SPARC64
36 select HAVE_DEBUG_BUGVERBOSE
37 select GENERIC_SMP_IDLE_THREAD
38 select GENERIC_CMOS_UPDATE
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA
46 select GENERIC_ATOMIC64
52 select ARCH_SUPPORTS_MSI
53 select HAVE_FUNCTION_TRACER
54 select HAVE_FUNCTION_GRAPH_TRACER
55 select HAVE_FUNCTION_GRAPH_FP_TEST
56 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
57 select HAVE_KRETPROBES
59 select HAVE_RCU_TABLE_FREE if SMP
61 select HAVE_MEMBLOCK_NODE_MAP
62 select HAVE_SYSCALL_WRAPPERS
63 select HAVE_DYNAMIC_FTRACE
64 select HAVE_FTRACE_MCOUNT_RECORD
65 select HAVE_SYSCALL_TRACEPOINTS
66 select HAVE_DEBUG_KMEMLEAK
70 select RTC_DRV_STARFIRE
71 select HAVE_PERF_EVENTS
72 select PERF_USE_VMALLOC
73 select IRQ_PREFLOW_FASTEOI
74 select ARCH_HAVE_NMI_SAFE_CMPXCHG
75 select HAVE_C_RECORDMCOUNT
80 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
81 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
83 # CONFIG_BITS can be used at source level to get 32/64 bits
93 config STACKTRACE_SUPPORT
97 config LOCKDEP_SUPPORT
101 config HAVE_LATENCYTOP_SUPPORT
109 config HAVE_SETUP_PER_CPU_AREA
110 def_bool y if SPARC64
112 config NEED_PER_CPU_EMBED_FIRST_CHUNK
113 def_bool y if SPARC64
115 config NEED_PER_CPU_PAGE_FIRST_CHUNK
116 def_bool y if SPARC64
130 config NEED_DMA_MAP_STATE
133 config NEED_SG_DMA_LENGTH
136 config GENERIC_ISA_DMA
143 Generic GPIO API support
145 config ARCH_NO_VIRT_TO_BUS
148 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
149 def_bool y if SPARC64
151 source "init/Kconfig"
153 source "kernel/Kconfig.freezer"
155 menu "Processor type and features"
158 bool "Symmetric multi-processing support"
160 This enables support for systems with more than one CPU. If you have
161 a system with only one CPU, say N. If you have a system with more
164 If you say N here, the kernel will run on single and multiprocessor
165 machines, but will use only one CPU of a multiprocessor machine. If
166 you say Y here, the kernel will run on many, but not all,
167 singleprocessor machines. On a singleprocessor machine, the kernel
168 will run faster if you say N here.
170 People using multiprocessor machines who say Y here should also say
171 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
172 Management" code will be disabled if you say Y here.
174 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
175 available at <http://www.tldp.org/docs.html#howto>.
177 If you don't know what to do here, say N.
180 int "Maximum number of CPUs"
182 range 2 32 if SPARC32
183 range 2 1024 if SPARC64
184 default 32 if SPARC32
185 default 64 if SPARC64
187 source kernel/Kconfig.hz
189 config RWSEM_GENERIC_SPINLOCK
193 config RWSEM_XCHGADD_ALGORITHM
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 bool "Enable seccomp to safely compute untrusted bytecode"
236 depends on SPARC64 && PROC_FS
239 This kernel feature is useful for number crunching applications
240 that may need to compute untrusted bytecode during their
241 execution. By using pipes or other transports made available to
242 the process as file descriptors supporting the read/write
243 syscalls, it's possible to isolate those applications in
244 their own address space using seccomp. Once seccomp is
245 enabled via /proc/<pid>/seccomp, it cannot be disabled
246 and the task is only allowed to execute a few safe syscalls
247 defined by each seccomp mode.
249 If unsure, say Y. Only embedded should say N here.
252 bool "Support for hot-pluggable CPUs"
253 depends on SPARC64 && SMP
256 Say Y here to experiment with turning CPUs off and on. CPUs
257 can be controlled through /sys/devices/system/cpu/cpu#.
258 Say N if you want to disable CPU hotplug.
261 source "drivers/cpufreq/Kconfig"
264 tristate "UltraSPARC-III CPU Frequency driver"
266 select CPU_FREQ_TABLE
268 This adds the CPUFreq driver for UltraSPARC-III processors.
270 For details, take a look at <file:Documentation/cpu-freq>.
275 tristate "UltraSPARC-IIe CPU Frequency driver"
277 select CPU_FREQ_TABLE
279 This adds the CPUFreq driver for UltraSPARC-IIe processors.
281 For details, take a look at <file:Documentation/cpu-freq>.
288 tristate "UltraSPARC-III Memory Controller driver"
292 This adds a driver for the UltraSPARC-III memory controller.
293 Loading this driver allows exact mnemonic strings to be
294 printed in the event of a memory error, so that the faulty DIMM
295 on the motherboard can be matched to the error.
297 If in doubt, say Y, as this information can be very useful.
299 # Global things across all Sun machines.
300 config GENERIC_LOCKBREAK
303 depends on SPARC64 && SMP && PREEMPT
307 depends on SPARC64 && SMP
312 depends on NEED_MULTIPLE_NODES
314 # Some NUMA nodes have memory ranges that span
315 # other nodes. Even though a pfn is valid and
316 # between a node's start and end pfns, it may not
317 # reside on that node. See memmap_init_zone()
319 config NODES_SPAN_OTHER_NODES
321 depends on NEED_MULTIPLE_NODES
323 config ARCH_SELECT_MEMORY_MODEL
324 def_bool y if SPARC64
326 config ARCH_SPARSEMEM_ENABLE
327 def_bool y if SPARC64
328 select SPARSEMEM_VMEMMAP_ENABLE
330 config ARCH_SPARSEMEM_DEFAULT
331 def_bool y if SPARC64
336 bool "SMT (Hyperthreading) scheduler support"
337 depends on SPARC64 && SMP
340 SMT scheduler support improves the CPU scheduler's decision making
341 when dealing with SPARC cpus at a cost of slightly increased overhead
342 in some places. If unsure say N here.
345 bool "Multi-core scheduler support"
346 depends on SPARC64 && SMP
349 Multi-core scheduler support improves the CPU scheduler's decision
350 making when dealing with multi-core CPU chips at a cost of slightly
351 increased overhead in some places. If unsure say N here.
353 source "kernel/Kconfig.preempt"
356 bool "Default bootloader kernel arguments"
360 string "Initial kernel command string"
361 depends on CMDLINE_BOOL
362 default "console=ttyS0,9600 root=/dev/sda1"
364 Say Y here if you want to be able to pass default arguments to
365 the kernel. This will be overridden by the bootloader, if you
366 use one (such as SILO). This is most useful if you want to boot
367 a kernel from TFTP, and want default options to be available
368 with having them passed on the command line.
370 NOTE: This option WILL override the PROM bootargs setting!
376 Enable power management and CPU standby features on supported
380 tristate "Sun4m LED driver"
383 This driver toggles the front-panel LED on sun4m systems
384 in a user-specifiable manner. Its state can be probed
385 by reading /proc/led and its blinking mode can be changed
386 via writes to /proc/led
388 config SERIAL_CONSOLE
393 If you say Y here, it will be possible to use a serial port as the
394 system console (the system console is the device which receives all
395 kernel messages and warnings and which allows logins in single user
396 mode). This could be useful if some terminal or printer is connected
399 Even if you say Y here, the currently visible virtual console
400 (/dev/tty0) will still be used as the system console by default, but
401 you can alter that using a kernel command line option such as
402 "console=ttyS1". (Try "man bootparam" or see the documentation of
403 your boot loader (silo) about how to pass options to the kernel at
406 If you don't have a graphics card installed and you say Y here, the
407 kernel will automatically use the first serial line, /dev/ttyS0, as
413 bool "Sparc Leon processor family"
416 If you say Y here if you are running on a SPARC-LEON processor.
417 The LEON processor is a synthesizable VHDL model of the
418 SPARC-v8 standard. LEON is part of the GRLIB collection of
419 IP cores that are distributed under GPL. GRLIB can be downloaded
420 from www.gaisler.com. You can download a sparc-linux cross-compilation
421 toolchain at www.gaisler.com.
424 menu "U-Boot options"
426 config UBOOT_LOAD_ADDR
427 hex "uImage Load Address"
430 U-Boot kernel load address, the address in physical address space
431 where u-boot will place the Linux kernel before booting it.
432 This address is normally the base address of main memory + 0x4000.
434 config UBOOT_FLASH_ADDR
435 hex "uImage.o Load Address"
438 Optional setting only affecting the uImage.o ELF-image used to
439 download the uImage file to the target using a ELF-loader other than
440 U-Boot. It may for example be used to download an uImage to FLASH with
441 the GRMON utility before even starting u-boot.
443 config UBOOT_ENTRY_ADDR
444 hex "uImage Entry Address"
447 Do not change this unless you know what you're doing. This is
448 hardcoded by the SPARC32 and LEON port.
450 This is the virtual address u-boot jumps to when booting the Linux
458 menu "Bus options (PCI etc.)"
468 bool "Sun Logical Domains support"
471 Say Y here is you want to support virtual devices via
475 bool "Support for PCI and PS/2 keyboard/mouse"
477 Find out whether your system includes a PCI bus. PCI is the name of
478 a bus system, i.e. the way the CPU talks to the other stuff inside
479 your box. If you say Y here, the kernel will include drivers and
480 infrastructure code to support PCI bus devices.
482 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
483 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
484 All of these platforms are extremely obscure, so say N if unsure.
487 def_bool PCI if SPARC64
494 depends on PCI && SPARC32 && !SPARC_LEON
499 depends on PCI && SPARC_LEON
503 bool "GRPCI2 Host Bridge Support"
507 Say Y here to include the GRPCI2 Host Bridge Driver.
509 source "drivers/pci/Kconfig"
511 source "drivers/pcmcia/Kconfig"
513 config SUN_OPENPROMFS
514 tristate "Openprom tree appears in /proc/openprom"
516 If you say Y, the OpenPROM device tree will be available as a
517 virtual file system, which you can mount to /proc/openprom by "mount
518 -t openpromfs none /proc/openprom".
520 To compile the /proc/openprom support as a module, choose M here: the
521 module will be called openpromfs.
523 Only choose N if you know in advance that you will not need to modify
524 OpenPROM settings on the running system.
530 depends on SPARC64 && PCI
534 menu "Executable file formats"
536 source "fs/Kconfig.binfmt"
542 select COMPAT_BINFMT_ELF
544 select ARCH_WANT_OLD_COMPAT_IPC
546 config SYSVIPC_COMPAT
548 depends on COMPAT && SYSVIPC
552 def_bool y if COMPAT && KEYS
558 source "drivers/Kconfig"
560 source "drivers/sbus/char/Kconfig"
564 source "arch/sparc/Kconfig.debug"
566 source "security/Kconfig"
568 source "crypto/Kconfig"