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
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL
30 select HAVE_GENERIC_HARDIRQS
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select USE_GENERIC_SMP_HELPERS if SMP
34 select GENERIC_PCI_IOMAP
35 select HAVE_NMI_WATCHDOG if SPARC64
37 select HAVE_DEBUG_BUGVERBOSE
38 select GENERIC_SMP_IDLE_THREAD
39 select GENERIC_CMOS_UPDATE
40 select GENERIC_CLOCKEVENTS
41 select GENERIC_STRNCPY_FROM_USER
42 select GENERIC_STRNLEN_USER
43 select MODULES_USE_ELF_RELA
44 select GENERIC_KERNEL_THREAD
45 select GENERIC_KERNEL_EXECVE
49 select GENERIC_ATOMIC64
55 select ARCH_SUPPORTS_MSI
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
60 select HAVE_KRETPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
64 select HAVE_MEMBLOCK_NODE_MAP
65 select HAVE_SYSCALL_WRAPPERS
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_MCOUNT_RECORD
68 select HAVE_SYSCALL_TRACEPOINTS
69 select HAVE_DEBUG_KMEMLEAK
73 select RTC_DRV_STARFIRE
74 select HAVE_PERF_EVENTS
75 select PERF_USE_VMALLOC
76 select IRQ_PREFLOW_FASTEOI
77 select ARCH_HAVE_NMI_SAFE_CMPXCHG
78 select HAVE_C_RECORDMCOUNT
83 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
84 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
86 # CONFIG_BITS can be used at source level to get 32/64 bits
96 config STACKTRACE_SUPPORT
100 config LOCKDEP_SUPPORT
104 config HAVE_LATENCYTOP_SUPPORT
112 config HAVE_SETUP_PER_CPU_AREA
113 def_bool y if SPARC64
115 config NEED_PER_CPU_EMBED_FIRST_CHUNK
116 def_bool y if SPARC64
118 config NEED_PER_CPU_PAGE_FIRST_CHUNK
119 def_bool y if SPARC64
133 config NEED_DMA_MAP_STATE
136 config NEED_SG_DMA_LENGTH
139 config GENERIC_ISA_DMA
146 Generic GPIO API support
148 config ARCH_NO_VIRT_TO_BUS
151 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
152 def_bool y if SPARC64
154 source "init/Kconfig"
156 source "kernel/Kconfig.freezer"
158 menu "Processor type and features"
161 bool "Symmetric multi-processing support"
163 This enables support for systems with more than one CPU. If you have
164 a system with only one CPU, say N. If you have a system with more
167 If you say N here, the kernel will run on single and multiprocessor
168 machines, but will use only one CPU of a multiprocessor machine. If
169 you say Y here, the kernel will run on many, but not all,
170 singleprocessor machines. On a singleprocessor machine, the kernel
171 will run faster if you say N here.
173 People using multiprocessor machines who say Y here should also say
174 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
175 Management" code will be disabled if you say Y here.
177 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
178 available at <http://www.tldp.org/docs.html#howto>.
180 If you don't know what to do here, say N.
183 int "Maximum number of CPUs"
185 range 2 32 if SPARC32
186 range 2 1024 if SPARC64
187 default 32 if SPARC32
188 default 64 if SPARC64
190 source kernel/Kconfig.hz
192 config RWSEM_GENERIC_SPINLOCK
196 config RWSEM_XCHGADD_ALGORITHM
200 config GENERIC_HWEIGHT
202 default y if !ULTRA_HAS_POPULATION_COUNT
204 config GENERIC_CALIBRATE_DELAY
208 config ARCH_MAY_HAVE_PC_FDC
212 config EMULATED_CMPXCHG
216 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
217 is emulated, and therefore it is not completely atomic.
223 depends on SPARC32 && SMP
228 depends on SPARC64 && SMP
231 bool "Support for early boot text console"
235 Say Y here to enable a faster early framebuffer boot console.
238 bool "Enable seccomp to safely compute untrusted bytecode"
239 depends on SPARC64 && PROC_FS
242 This kernel feature is useful for number crunching applications
243 that may need to compute untrusted bytecode during their
244 execution. By using pipes or other transports made available to
245 the process as file descriptors supporting the read/write
246 syscalls, it's possible to isolate those applications in
247 their own address space using seccomp. Once seccomp is
248 enabled via /proc/<pid>/seccomp, it cannot be disabled
249 and the task is only allowed to execute a few safe syscalls
250 defined by each seccomp mode.
252 If unsure, say Y. Only embedded should say N here.
255 bool "Support for hot-pluggable CPUs"
256 depends on SPARC64 && SMP
259 Say Y here to experiment with turning CPUs off and on. CPUs
260 can be controlled through /sys/devices/system/cpu/cpu#.
261 Say N if you want to disable CPU hotplug.
264 source "drivers/cpufreq/Kconfig"
267 tristate "UltraSPARC-III CPU Frequency driver"
269 select CPU_FREQ_TABLE
271 This adds the CPUFreq driver for UltraSPARC-III processors.
273 For details, take a look at <file:Documentation/cpu-freq>.
278 tristate "UltraSPARC-IIe CPU Frequency driver"
280 select CPU_FREQ_TABLE
282 This adds the CPUFreq driver for UltraSPARC-IIe processors.
284 For details, take a look at <file:Documentation/cpu-freq>.
291 tristate "UltraSPARC-III Memory Controller driver"
295 This adds a driver for the UltraSPARC-III memory controller.
296 Loading this driver allows exact mnemonic strings to be
297 printed in the event of a memory error, so that the faulty DIMM
298 on the motherboard can be matched to the error.
300 If in doubt, say Y, as this information can be very useful.
302 # Global things across all Sun machines.
303 config GENERIC_LOCKBREAK
306 depends on SPARC64 && SMP && PREEMPT
310 depends on SPARC64 && SMP
315 depends on NEED_MULTIPLE_NODES
317 # Some NUMA nodes have memory ranges that span
318 # other nodes. Even though a pfn is valid and
319 # between a node's start and end pfns, it may not
320 # reside on that node. See memmap_init_zone()
322 config NODES_SPAN_OTHER_NODES
324 depends on NEED_MULTIPLE_NODES
326 config ARCH_SELECT_MEMORY_MODEL
327 def_bool y if SPARC64
329 config ARCH_SPARSEMEM_ENABLE
330 def_bool y if SPARC64
331 select SPARSEMEM_VMEMMAP_ENABLE
333 config ARCH_SPARSEMEM_DEFAULT
334 def_bool y if SPARC64
339 bool "SMT (Hyperthreading) scheduler support"
340 depends on SPARC64 && SMP
343 SMT scheduler support improves the CPU scheduler's decision making
344 when dealing with SPARC cpus at a cost of slightly increased overhead
345 in some places. If unsure say N here.
348 bool "Multi-core scheduler support"
349 depends on SPARC64 && SMP
352 Multi-core scheduler support improves the CPU scheduler's decision
353 making when dealing with multi-core CPU chips at a cost of slightly
354 increased overhead in some places. If unsure say N here.
356 source "kernel/Kconfig.preempt"
359 bool "Default bootloader kernel arguments"
363 string "Initial kernel command string"
364 depends on CMDLINE_BOOL
365 default "console=ttyS0,9600 root=/dev/sda1"
367 Say Y here if you want to be able to pass default arguments to
368 the kernel. This will be overridden by the bootloader, if you
369 use one (such as SILO). This is most useful if you want to boot
370 a kernel from TFTP, and want default options to be available
371 with having them passed on the command line.
373 NOTE: This option WILL override the PROM bootargs setting!
379 Enable power management and CPU standby features on supported
383 tristate "Sun4m LED driver"
386 This driver toggles the front-panel LED on sun4m systems
387 in a user-specifiable manner. Its state can be probed
388 by reading /proc/led and its blinking mode can be changed
389 via writes to /proc/led
391 config SERIAL_CONSOLE
396 If you say Y here, it will be possible to use a serial port as the
397 system console (the system console is the device which receives all
398 kernel messages and warnings and which allows logins in single user
399 mode). This could be useful if some terminal or printer is connected
402 Even if you say Y here, the currently visible virtual console
403 (/dev/tty0) will still be used as the system console by default, but
404 you can alter that using a kernel command line option such as
405 "console=ttyS1". (Try "man bootparam" or see the documentation of
406 your boot loader (silo) about how to pass options to the kernel at
409 If you don't have a graphics card installed and you say Y here, the
410 kernel will automatically use the first serial line, /dev/ttyS0, as
416 bool "Sparc Leon processor family"
419 If you say Y here if you are running on a SPARC-LEON processor.
420 The LEON processor is a synthesizable VHDL model of the
421 SPARC-v8 standard. LEON is part of the GRLIB collection of
422 IP cores that are distributed under GPL. GRLIB can be downloaded
423 from www.gaisler.com. You can download a sparc-linux cross-compilation
424 toolchain at www.gaisler.com.
427 menu "U-Boot options"
429 config UBOOT_LOAD_ADDR
430 hex "uImage Load Address"
433 U-Boot kernel load address, the address in physical address space
434 where u-boot will place the Linux kernel before booting it.
435 This address is normally the base address of main memory + 0x4000.
437 config UBOOT_FLASH_ADDR
438 hex "uImage.o Load Address"
441 Optional setting only affecting the uImage.o ELF-image used to
442 download the uImage file to the target using a ELF-loader other than
443 U-Boot. It may for example be used to download an uImage to FLASH with
444 the GRMON utility before even starting u-boot.
446 config UBOOT_ENTRY_ADDR
447 hex "uImage Entry Address"
450 Do not change this unless you know what you're doing. This is
451 hardcoded by the SPARC32 and LEON port.
453 This is the virtual address u-boot jumps to when booting the Linux
461 menu "Bus options (PCI etc.)"
471 bool "Sun Logical Domains support"
474 Say Y here is you want to support virtual devices via
478 bool "Support for PCI and PS/2 keyboard/mouse"
480 Find out whether your system includes a PCI bus. PCI is the name of
481 a bus system, i.e. the way the CPU talks to the other stuff inside
482 your box. If you say Y here, the kernel will include drivers and
483 infrastructure code to support PCI bus devices.
485 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
486 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
487 All of these platforms are extremely obscure, so say N if unsure.
490 def_bool PCI if SPARC64
497 depends on PCI && SPARC32 && !SPARC_LEON
502 depends on PCI && SPARC_LEON
506 bool "GRPCI2 Host Bridge Support"
510 Say Y here to include the GRPCI2 Host Bridge Driver.
512 source "drivers/pci/Kconfig"
514 source "drivers/pcmcia/Kconfig"
516 config SUN_OPENPROMFS
517 tristate "Openprom tree appears in /proc/openprom"
519 If you say Y, the OpenPROM device tree will be available as a
520 virtual file system, which you can mount to /proc/openprom by "mount
521 -t openpromfs none /proc/openprom".
523 To compile the /proc/openprom support as a module, choose M here: the
524 module will be called openpromfs.
526 Only choose N if you know in advance that you will not need to modify
527 OpenPROM settings on the running system.
533 depends on SPARC64 && PCI
537 menu "Executable file formats"
539 source "fs/Kconfig.binfmt"
545 select COMPAT_BINFMT_ELF
547 select ARCH_WANT_OLD_COMPAT_IPC
549 config SYSVIPC_COMPAT
551 depends on COMPAT && SYSVIPC
555 def_bool y if COMPAT && KEYS
561 source "drivers/Kconfig"
563 source "drivers/sbus/char/Kconfig"
567 source "arch/sparc/Kconfig.debug"
569 source "security/Kconfig"
571 source "crypto/Kconfig"