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
45 select GENERIC_ATOMIC64
51 select ARCH_SUPPORTS_MSI
52 select HAVE_FUNCTION_TRACER
53 select HAVE_FUNCTION_GRAPH_TRACER
54 select HAVE_FUNCTION_GRAPH_FP_TEST
55 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
56 select HAVE_KRETPROBES
58 select HAVE_RCU_TABLE_FREE if SMP
60 select HAVE_MEMBLOCK_NODE_MAP
61 select HAVE_SYSCALL_WRAPPERS
62 select HAVE_DYNAMIC_FTRACE
63 select HAVE_FTRACE_MCOUNT_RECORD
64 select HAVE_SYSCALL_TRACEPOINTS
65 select HAVE_DEBUG_KMEMLEAK
69 select RTC_DRV_STARFIRE
70 select HAVE_PERF_EVENTS
71 select PERF_USE_VMALLOC
72 select IRQ_PREFLOW_FASTEOI
73 select ARCH_HAVE_NMI_SAFE_CMPXCHG
74 select HAVE_C_RECORDMCOUNT
79 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
80 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
82 # CONFIG_BITS can be used at source level to get 32/64 bits
92 config STACKTRACE_SUPPORT
96 config LOCKDEP_SUPPORT
100 config HAVE_LATENCYTOP_SUPPORT
108 config HAVE_SETUP_PER_CPU_AREA
109 def_bool y if SPARC64
111 config NEED_PER_CPU_EMBED_FIRST_CHUNK
112 def_bool y if SPARC64
114 config NEED_PER_CPU_PAGE_FIRST_CHUNK
115 def_bool y if SPARC64
129 config NEED_DMA_MAP_STATE
132 config NEED_SG_DMA_LENGTH
135 config GENERIC_ISA_DMA
142 Generic GPIO API support
144 config ARCH_NO_VIRT_TO_BUS
147 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
148 def_bool y if SPARC64
150 source "init/Kconfig"
152 source "kernel/Kconfig.freezer"
154 menu "Processor type and features"
157 bool "Symmetric multi-processing support"
159 This enables support for systems with more than one CPU. If you have
160 a system with only one CPU, say N. If you have a system with more
163 If you say N here, the kernel will run on single and multiprocessor
164 machines, but will use only one CPU of a multiprocessor machine. If
165 you say Y here, the kernel will run on many, but not all,
166 singleprocessor machines. On a singleprocessor machine, the kernel
167 will run faster if you say N here.
169 People using multiprocessor machines who say Y here should also say
170 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
171 Management" code will be disabled if you say Y here.
173 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
174 available at <http://www.tldp.org/docs.html#howto>.
176 If you don't know what to do here, say N.
179 int "Maximum number of CPUs"
181 range 2 32 if SPARC32
182 range 2 1024 if SPARC64
183 default 32 if SPARC32
184 default 64 if SPARC64
186 source kernel/Kconfig.hz
188 config RWSEM_GENERIC_SPINLOCK
192 config RWSEM_XCHGADD_ALGORITHM
196 config GENERIC_HWEIGHT
198 default y if !ULTRA_HAS_POPULATION_COUNT
200 config GENERIC_CALIBRATE_DELAY
204 config ARCH_MAY_HAVE_PC_FDC
208 config EMULATED_CMPXCHG
212 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
213 is emulated, and therefore it is not completely atomic.
219 depends on SPARC32 && SMP
224 depends on SPARC64 && SMP
227 bool "Support for early boot text console"
231 Say Y here to enable a faster early framebuffer boot console.
234 bool "Enable seccomp to safely compute untrusted bytecode"
235 depends on SPARC64 && PROC_FS
238 This kernel feature is useful for number crunching applications
239 that may need to compute untrusted bytecode during their
240 execution. By using pipes or other transports made available to
241 the process as file descriptors supporting the read/write
242 syscalls, it's possible to isolate those applications in
243 their own address space using seccomp. Once seccomp is
244 enabled via /proc/<pid>/seccomp, it cannot be disabled
245 and the task is only allowed to execute a few safe syscalls
246 defined by each seccomp mode.
248 If unsure, say Y. Only embedded should say N here.
251 bool "Support for hot-pluggable CPUs"
252 depends on SPARC64 && SMP
255 Say Y here to experiment with turning CPUs off and on. CPUs
256 can be controlled through /sys/devices/system/cpu/cpu#.
257 Say N if you want to disable CPU hotplug.
260 source "drivers/cpufreq/Kconfig"
263 tristate "UltraSPARC-III CPU Frequency driver"
265 select CPU_FREQ_TABLE
267 This adds the CPUFreq driver for UltraSPARC-III processors.
269 For details, take a look at <file:Documentation/cpu-freq>.
274 tristate "UltraSPARC-IIe CPU Frequency driver"
276 select CPU_FREQ_TABLE
278 This adds the CPUFreq driver for UltraSPARC-IIe processors.
280 For details, take a look at <file:Documentation/cpu-freq>.
287 tristate "UltraSPARC-III Memory Controller driver"
291 This adds a driver for the UltraSPARC-III memory controller.
292 Loading this driver allows exact mnemonic strings to be
293 printed in the event of a memory error, so that the faulty DIMM
294 on the motherboard can be matched to the error.
296 If in doubt, say Y, as this information can be very useful.
298 # Global things across all Sun machines.
299 config GENERIC_LOCKBREAK
302 depends on SPARC64 && SMP && PREEMPT
306 depends on SPARC64 && SMP
311 depends on NEED_MULTIPLE_NODES
313 # Some NUMA nodes have memory ranges that span
314 # other nodes. Even though a pfn is valid and
315 # between a node's start and end pfns, it may not
316 # reside on that node. See memmap_init_zone()
318 config NODES_SPAN_OTHER_NODES
320 depends on NEED_MULTIPLE_NODES
322 config ARCH_SELECT_MEMORY_MODEL
323 def_bool y if SPARC64
325 config ARCH_SPARSEMEM_ENABLE
326 def_bool y if SPARC64
327 select SPARSEMEM_VMEMMAP_ENABLE
329 config ARCH_SPARSEMEM_DEFAULT
330 def_bool y if SPARC64
335 bool "SMT (Hyperthreading) scheduler support"
336 depends on SPARC64 && SMP
339 SMT scheduler support improves the CPU scheduler's decision making
340 when dealing with SPARC cpus at a cost of slightly increased overhead
341 in some places. If unsure say N here.
344 bool "Multi-core scheduler support"
345 depends on SPARC64 && SMP
348 Multi-core scheduler support improves the CPU scheduler's decision
349 making when dealing with multi-core CPU chips at a cost of slightly
350 increased overhead in some places. If unsure say N here.
352 source "kernel/Kconfig.preempt"
355 bool "Default bootloader kernel arguments"
359 string "Initial kernel command string"
360 depends on CMDLINE_BOOL
361 default "console=ttyS0,9600 root=/dev/sda1"
363 Say Y here if you want to be able to pass default arguments to
364 the kernel. This will be overridden by the bootloader, if you
365 use one (such as SILO). This is most useful if you want to boot
366 a kernel from TFTP, and want default options to be available
367 with having them passed on the command line.
369 NOTE: This option WILL override the PROM bootargs setting!
375 Enable power management and CPU standby features on supported
379 tristate "Sun4m LED driver"
382 This driver toggles the front-panel LED on sun4m systems
383 in a user-specifiable manner. Its state can be probed
384 by reading /proc/led and its blinking mode can be changed
385 via writes to /proc/led
387 config SERIAL_CONSOLE
392 If you say Y here, it will be possible to use a serial port as the
393 system console (the system console is the device which receives all
394 kernel messages and warnings and which allows logins in single user
395 mode). This could be useful if some terminal or printer is connected
398 Even if you say Y here, the currently visible virtual console
399 (/dev/tty0) will still be used as the system console by default, but
400 you can alter that using a kernel command line option such as
401 "console=ttyS1". (Try "man bootparam" or see the documentation of
402 your boot loader (silo) about how to pass options to the kernel at
405 If you don't have a graphics card installed and you say Y here, the
406 kernel will automatically use the first serial line, /dev/ttyS0, as
412 bool "Sparc Leon processor family"
415 If you say Y here if you are running on a SPARC-LEON processor.
416 The LEON processor is a synthesizable VHDL model of the
417 SPARC-v8 standard. LEON is part of the GRLIB collection of
418 IP cores that are distributed under GPL. GRLIB can be downloaded
419 from www.gaisler.com. You can download a sparc-linux cross-compilation
420 toolchain at www.gaisler.com.
423 menu "U-Boot options"
425 config UBOOT_LOAD_ADDR
426 hex "uImage Load Address"
429 U-Boot kernel load address, the address in physical address space
430 where u-boot will place the Linux kernel before booting it.
431 This address is normally the base address of main memory + 0x4000.
433 config UBOOT_FLASH_ADDR
434 hex "uImage.o Load Address"
437 Optional setting only affecting the uImage.o ELF-image used to
438 download the uImage file to the target using a ELF-loader other than
439 U-Boot. It may for example be used to download an uImage to FLASH with
440 the GRMON utility before even starting u-boot.
442 config UBOOT_ENTRY_ADDR
443 hex "uImage Entry Address"
446 Do not change this unless you know what you're doing. This is
447 hardcoded by the SPARC32 and LEON port.
449 This is the virtual address u-boot jumps to when booting the Linux
457 menu "Bus options (PCI etc.)"
467 bool "Sun Logical Domains support"
470 Say Y here is you want to support virtual devices via
474 bool "Support for PCI and PS/2 keyboard/mouse"
476 Find out whether your system includes a PCI bus. PCI is the name of
477 a bus system, i.e. the way the CPU talks to the other stuff inside
478 your box. If you say Y here, the kernel will include drivers and
479 infrastructure code to support PCI bus devices.
481 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
482 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
483 All of these platforms are extremely obscure, so say N if unsure.
486 def_bool PCI if SPARC64
493 depends on PCI && SPARC32 && !SPARC_LEON
498 depends on PCI && SPARC_LEON
502 bool "GRPCI2 Host Bridge Support"
506 Say Y here to include the GRPCI2 Host Bridge Driver.
508 source "drivers/pci/Kconfig"
510 source "drivers/pcmcia/Kconfig"
512 config SUN_OPENPROMFS
513 tristate "Openprom tree appears in /proc/openprom"
515 If you say Y, the OpenPROM device tree will be available as a
516 virtual file system, which you can mount to /proc/openprom by "mount
517 -t openpromfs none /proc/openprom".
519 To compile the /proc/openprom support as a module, choose M here: the
520 module will be called openpromfs.
522 Only choose N if you know in advance that you will not need to modify
523 OpenPROM settings on the running system.
529 depends on SPARC64 && PCI
533 menu "Executable file formats"
535 source "fs/Kconfig.binfmt"
541 select COMPAT_BINFMT_ELF
543 select ARCH_WANT_OLD_COMPAT_IPC
545 config SYSVIPC_COMPAT
547 depends on COMPAT && SYSVIPC
551 def_bool y if COMPAT && KEYS
557 source "drivers/Kconfig"
559 source "drivers/sbus/char/Kconfig"
563 source "arch/sparc/Kconfig.debug"
565 source "security/Kconfig"
567 source "crypto/Kconfig"