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
15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_MIGHT_HAVE_PC_SERIO
21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select HAVE_ARCH_TRACEHOOK
23 select SYSCTL_EXCEPTION_TRACE
24 select ARCH_WANT_OPTIONAL_GPIOLIB
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
29 select HAVE_DMA_API_DEBUG
30 select HAVE_ARCH_JUMP_LABEL if SPARC64
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_IPC_PARSE_VERSION
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_CLOCKEVENTS
39 select GENERIC_STRNCPY_FROM_USER
40 select GENERIC_STRNLEN_USER
41 select MODULES_USE_ELF_RELA
42 select ODD_RT_SIGACTION
44 select ARCH_HAS_SG_CHAIN
48 select GENERIC_ATOMIC64
55 select HAVE_FUNCTION_TRACER
56 select HAVE_FUNCTION_GRAPH_TRACER
57 select HAVE_FUNCTION_GRAPH_FP_TEST
58 select HAVE_KRETPROBES
60 select HAVE_RCU_TABLE_FREE if SMP
62 select HAVE_MEMBLOCK_NODE_MAP
63 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
64 select HAVE_DYNAMIC_FTRACE
65 select HAVE_FTRACE_MCOUNT_RECORD
66 select HAVE_SYSCALL_TRACEPOINTS
67 select HAVE_CONTEXT_TRACKING
68 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
80 select HAVE_ARCH_AUDITSYSCALL
81 select ARCH_SUPPORTS_ATOMIC_RMW
85 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
86 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
88 config ARCH_PROC_KCORE_TEXT
95 config STACKTRACE_SUPPORT
99 config LOCKDEP_SUPPORT
103 config ARCH_HIBERNATION_POSSIBLE
104 def_bool y if SPARC64
110 config HAVE_SETUP_PER_CPU_AREA
111 def_bool y if SPARC64
113 config NEED_PER_CPU_EMBED_FIRST_CHUNK
114 def_bool y if SPARC64
116 config NEED_PER_CPU_PAGE_FIRST_CHUNK
117 def_bool y if SPARC64
131 config NEED_DMA_MAP_STATE
134 config NEED_SG_DMA_LENGTH
137 config GENERIC_ISA_DMA
141 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
142 def_bool y if SPARC64
144 config PGTABLE_LEVELS
148 source "init/Kconfig"
150 source "kernel/Kconfig.freezer"
152 menu "Processor type and features"
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
161 If you say N here, the kernel will run on uni- 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 many, but not all,
164 uniprocessor machines. On a uniprocessor machine, the kernel
165 will run faster if you say N here.
167 People using multiprocessor machines who say Y here should also say
168 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
169 Management" code will be disabled if you say Y here.
171 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
172 available at <http://www.tldp.org/docs.html#howto>.
174 If you don't know what to do here, say N.
177 int "Maximum number of CPUs"
179 range 2 32 if SPARC32
180 range 2 1024 if SPARC64
181 default 32 if SPARC32
182 default 64 if SPARC64
184 source kernel/Kconfig.hz
186 config RWSEM_GENERIC_SPINLOCK
190 config RWSEM_XCHGADD_ALGORITHM
194 config GENERIC_HWEIGHT
198 config GENERIC_CALIBRATE_DELAY
202 config ARCH_MAY_HAVE_PC_FDC
206 config EMULATED_CMPXCHG
210 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
211 is emulated, and therefore it is not completely atomic.
217 depends on SPARC32 && SMP
222 depends on SPARC64 && SMP
225 bool "Support for early boot text console"
229 Say Y here to enable a faster early framebuffer boot console.
232 bool "Enable seccomp to safely compute untrusted bytecode"
233 depends on SPARC64 && PROC_FS
236 This kernel feature is useful for number crunching applications
237 that may need to compute untrusted bytecode during their
238 execution. By using pipes or other transports made available to
239 the process as file descriptors supporting the read/write
240 syscalls, it's possible to isolate those applications in
241 their own address space using seccomp. Once seccomp is
242 enabled via /proc/<pid>/seccomp, it cannot be disabled
243 and the task is only allowed to execute a few safe syscalls
244 defined by each seccomp mode.
246 If unsure, say Y. Only embedded should say N here.
249 bool "Support for hot-pluggable CPUs"
250 depends on SPARC64 && SMP
252 Say Y here to experiment with turning CPUs off and on. CPUs
253 can be controlled through /sys/devices/system/cpu/cpu#.
254 Say N if you want to disable CPU hotplug.
257 source "drivers/cpufreq/Kconfig"
261 tristate "UltraSPARC-III Memory Controller driver"
265 This adds a driver for the UltraSPARC-III memory controller.
266 Loading this driver allows exact mnemonic strings to be
267 printed in the event of a memory error, so that the faulty DIMM
268 on the motherboard can be matched to the error.
270 If in doubt, say Y, as this information can be very useful.
272 # Global things across all Sun machines.
273 config GENERIC_LOCKBREAK
276 depends on SPARC64 && SMP && PREEMPT
280 depends on SPARC64 && SMP
285 depends on NEED_MULTIPLE_NODES
287 # Some NUMA nodes have memory ranges that span
288 # other nodes. Even though a pfn is valid and
289 # between a node's start and end pfns, it may not
290 # reside on that node. See memmap_init_zone()
292 config NODES_SPAN_OTHER_NODES
294 depends on NEED_MULTIPLE_NODES
296 config ARCH_SELECT_MEMORY_MODEL
297 def_bool y if SPARC64
299 config ARCH_SPARSEMEM_ENABLE
300 def_bool y if SPARC64
301 select SPARSEMEM_VMEMMAP_ENABLE
303 config ARCH_SPARSEMEM_DEFAULT
304 def_bool y if SPARC64
309 source "kernel/power/Kconfig"
313 bool "SMT (Hyperthreading) scheduler support"
314 depends on SPARC64 && SMP
317 SMT scheduler support improves the CPU scheduler's decision making
318 when dealing with SPARC cpus at a cost of slightly increased overhead
319 in some places. If unsure say N here.
322 bool "Multi-core scheduler support"
323 depends on SPARC64 && SMP
326 Multi-core scheduler support improves the CPU scheduler's decision
327 making when dealing with multi-core CPU chips at a cost of slightly
328 increased overhead in some places. If unsure say N here.
330 source "kernel/Kconfig.preempt"
333 bool "Default bootloader kernel arguments"
337 string "Initial kernel command string"
338 depends on CMDLINE_BOOL
339 default "console=ttyS0,9600 root=/dev/sda1"
341 Say Y here if you want to be able to pass default arguments to
342 the kernel. This will be overridden by the bootloader, if you
343 use one (such as SILO). This is most useful if you want to boot
344 a kernel from TFTP, and want default options to be available
345 with having them passed on the command line.
347 NOTE: This option WILL override the PROM bootargs setting!
353 Enable power management and CPU standby features on supported
357 tristate "Sun4m LED driver"
360 This driver toggles the front-panel LED on sun4m systems
361 in a user-specifiable manner. Its state can be probed
362 by reading /proc/led and its blinking mode can be changed
363 via writes to /proc/led
365 config SERIAL_CONSOLE
370 If you say Y here, it will be possible to use a serial port as the
371 system console (the system console is the device which receives all
372 kernel messages and warnings and which allows logins in single user
373 mode). This could be useful if some terminal or printer is connected
376 Even if you say Y here, the currently visible virtual console
377 (/dev/tty0) will still be used as the system console by default, but
378 you can alter that using a kernel command line option such as
379 "console=ttyS1". (Try "man bootparam" or see the documentation of
380 your boot loader (silo) about how to pass options to the kernel at
383 If you don't have a graphics card installed and you say Y here, the
384 kernel will automatically use the first serial line, /dev/ttyS0, as
390 bool "Sparc Leon processor family"
392 select USB_EHCI_BIG_ENDIAN_MMIO
393 select USB_EHCI_BIG_ENDIAN_DESC
395 If you say Y here if you are running on a SPARC-LEON processor.
396 The LEON processor is a synthesizable VHDL model of the
397 SPARC-v8 standard. LEON is part of the GRLIB collection of
398 IP cores that are distributed under GPL. GRLIB can be downloaded
399 from www.gaisler.com. You can download a sparc-linux cross-compilation
400 toolchain at www.gaisler.com.
403 menu "U-Boot options"
405 config UBOOT_LOAD_ADDR
406 hex "uImage Load Address"
409 U-Boot kernel load address, the address in physical address space
410 where u-boot will place the Linux kernel before booting it.
411 This address is normally the base address of main memory + 0x4000.
413 config UBOOT_FLASH_ADDR
414 hex "uImage.o Load Address"
417 Optional setting only affecting the uImage.o ELF-image used to
418 download the uImage file to the target using a ELF-loader other than
419 U-Boot. It may for example be used to download an uImage to FLASH with
420 the GRMON utility before even starting u-boot.
422 config UBOOT_ENTRY_ADDR
423 hex "uImage Entry Address"
426 Do not change this unless you know what you're doing. This is
427 hardcoded by the SPARC32 and LEON port.
429 This is the virtual address u-boot jumps to when booting the Linux
437 menu "Bus options (PCI etc.)"
447 bool "Sun Logical Domains support"
450 Say Y here is you want to support virtual devices via
454 bool "Support for PCI and PS/2 keyboard/mouse"
456 Find out whether your system includes a PCI bus. PCI is the name of
457 a bus system, i.e. the way the CPU talks to the other stuff inside
458 your box. If you say Y here, the kernel will include drivers and
459 infrastructure code to support PCI bus devices.
461 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
462 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
463 All of these platforms are extremely obscure, so say N if unsure.
466 def_bool PCI if SPARC64
473 depends on PCI && SPARC32 && !SPARC_LEON
478 depends on PCI && SPARC_LEON
482 bool "GRPCI Host Bridge Support"
486 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
487 PCI host controller is typically found in GRLIB SPARC32/LEON
488 systems. The driver has one property (all_pci_errors) controlled
489 from the bootloader that makes the GRPCI to generate interrupts
490 on detected PCI Parity and System errors.
493 bool "GRPCI2 Host Bridge Support"
497 Say Y here to include the GRPCI2 Host Bridge Driver.
499 source "drivers/pci/Kconfig"
501 source "drivers/pcmcia/Kconfig"
503 config SUN_OPENPROMFS
504 tristate "Openprom tree appears in /proc/openprom"
506 If you say Y, the OpenPROM device tree will be available as a
507 virtual file system, which you can mount to /proc/openprom by "mount
508 -t openpromfs none /proc/openprom".
510 To compile the /proc/openprom support as a module, choose M here: the
511 module will be called openpromfs.
513 Only choose N if you know in advance that you will not need to modify
514 OpenPROM settings on the running system.
520 depends on SPARC64 && PCI
522 config SPARC64_PCI_MSI
525 depends on SPARC64_PCI && PCI_MSI
529 menu "Executable file formats"
531 source "fs/Kconfig.binfmt"
537 select COMPAT_BINFMT_ELF
539 select ARCH_WANT_OLD_COMPAT_IPC
540 select COMPAT_OLD_SIGACTION
542 config SYSVIPC_COMPAT
544 depends on COMPAT && SYSVIPC
548 def_bool y if COMPAT && KEYS
554 source "drivers/Kconfig"
556 source "drivers/sbus/char/Kconfig"
560 source "arch/sparc/Kconfig.debug"
562 source "security/Kconfig"
564 source "crypto/Kconfig"