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 HAVE_EXIT_THREAD
24 select SYSCTL_EXCEPTION_TRACE
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
45 select CPU_NO_EFFICIENT_FFS
46 select HAVE_ARCH_HARDENED_USERCOPY
50 select GENERIC_ATOMIC64
57 select HAVE_FUNCTION_TRACER
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_FUNCTION_GRAPH_FP_TEST
60 select HAVE_KRETPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
64 select HAVE_MEMBLOCK_NODE_MAP
65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_MCOUNT_RECORD
68 select HAVE_SYSCALL_TRACEPOINTS
69 select HAVE_CONTEXT_TRACKING
70 select HAVE_DEBUG_KMEMLEAK
75 select RTC_DRV_STARFIRE
76 select HAVE_PERF_EVENTS
77 select PERF_USE_VMALLOC
78 select IRQ_PREFLOW_FASTEOI
79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
80 select HAVE_C_RECORDMCOUNT
82 select HAVE_ARCH_AUDITSYSCALL
83 select ARCH_SUPPORTS_ATOMIC_RMW
88 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
89 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
91 config ARCH_PROC_KCORE_TEXT
98 config STACKTRACE_SUPPORT
102 config LOCKDEP_SUPPORT
106 config ARCH_HIBERNATION_POSSIBLE
107 def_bool y if SPARC64
113 config HAVE_SETUP_PER_CPU_AREA
114 def_bool y if SPARC64
116 config NEED_PER_CPU_EMBED_FIRST_CHUNK
117 def_bool y if SPARC64
119 config NEED_PER_CPU_PAGE_FIRST_CHUNK
120 def_bool y if SPARC64
134 config NEED_DMA_MAP_STATE
137 config NEED_SG_DMA_LENGTH
140 config GENERIC_ISA_DMA
144 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
145 def_bool y if SPARC64
147 config PGTABLE_LEVELS
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 uni- 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 uniprocessor machines. On a uniprocessor 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
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
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"
264 tristate "UltraSPARC-III Memory Controller driver"
268 This adds a driver for the UltraSPARC-III memory controller.
269 Loading this driver allows exact mnemonic strings to be
270 printed in the event of a memory error, so that the faulty DIMM
271 on the motherboard can be matched to the error.
273 If in doubt, say Y, as this information can be very useful.
275 # Global things across all Sun machines.
276 config GENERIC_LOCKBREAK
279 depends on SPARC64 && SMP && PREEMPT
283 depends on SPARC64 && SMP
288 depends on NEED_MULTIPLE_NODES
290 # Some NUMA nodes have memory ranges that span
291 # other nodes. Even though a pfn is valid and
292 # between a node's start and end pfns, it may not
293 # reside on that node. See memmap_init_zone()
295 config NODES_SPAN_OTHER_NODES
297 depends on NEED_MULTIPLE_NODES
299 config ARCH_SELECT_MEMORY_MODEL
300 def_bool y if SPARC64
302 config ARCH_SPARSEMEM_ENABLE
303 def_bool y if SPARC64
304 select SPARSEMEM_VMEMMAP_ENABLE
306 config ARCH_SPARSEMEM_DEFAULT
307 def_bool y if SPARC64
312 source "kernel/power/Kconfig"
316 bool "SMT (Hyperthreading) scheduler support"
317 depends on SPARC64 && SMP
320 SMT scheduler support improves the CPU scheduler's decision making
321 when dealing with SPARC cpus at a cost of slightly increased overhead
322 in some places. If unsure say N here.
325 bool "Multi-core scheduler support"
326 depends on SPARC64 && SMP
329 Multi-core scheduler support improves the CPU scheduler's decision
330 making when dealing with multi-core CPU chips at a cost of slightly
331 increased overhead in some places. If unsure say N here.
333 source "kernel/Kconfig.preempt"
336 bool "Default bootloader kernel arguments"
340 string "Initial kernel command string"
341 depends on CMDLINE_BOOL
342 default "console=ttyS0,9600 root=/dev/sda1"
344 Say Y here if you want to be able to pass default arguments to
345 the kernel. This will be overridden by the bootloader, if you
346 use one (such as SILO). This is most useful if you want to boot
347 a kernel from TFTP, and want default options to be available
348 with having them passed on the command line.
350 NOTE: This option WILL override the PROM bootargs setting!
356 Enable power management and CPU standby features on supported
360 tristate "Sun4m LED driver"
363 This driver toggles the front-panel LED on sun4m systems
364 in a user-specifiable manner. Its state can be probed
365 by reading /proc/led and its blinking mode can be changed
366 via writes to /proc/led
368 config SERIAL_CONSOLE
373 If you say Y here, it will be possible to use a serial port as the
374 system console (the system console is the device which receives all
375 kernel messages and warnings and which allows logins in single user
376 mode). This could be useful if some terminal or printer is connected
379 Even if you say Y here, the currently visible virtual console
380 (/dev/tty0) will still be used as the system console by default, but
381 you can alter that using a kernel command line option such as
382 "console=ttyS1". (Try "man bootparam" or see the documentation of
383 your boot loader (silo) about how to pass options to the kernel at
386 If you don't have a graphics card installed and you say Y here, the
387 kernel will automatically use the first serial line, /dev/ttyS0, as
393 bool "Sparc Leon processor family"
395 select USB_EHCI_BIG_ENDIAN_MMIO
396 select USB_EHCI_BIG_ENDIAN_DESC
398 If you say Y here if you are running on a SPARC-LEON processor.
399 The LEON processor is a synthesizable VHDL model of the
400 SPARC-v8 standard. LEON is part of the GRLIB collection of
401 IP cores that are distributed under GPL. GRLIB can be downloaded
402 from www.gaisler.com. You can download a sparc-linux cross-compilation
403 toolchain at www.gaisler.com.
406 menu "U-Boot options"
408 config UBOOT_LOAD_ADDR
409 hex "uImage Load Address"
412 U-Boot kernel load address, the address in physical address space
413 where u-boot will place the Linux kernel before booting it.
414 This address is normally the base address of main memory + 0x4000.
416 config UBOOT_FLASH_ADDR
417 hex "uImage.o Load Address"
420 Optional setting only affecting the uImage.o ELF-image used to
421 download the uImage file to the target using a ELF-loader other than
422 U-Boot. It may for example be used to download an uImage to FLASH with
423 the GRMON utility before even starting u-boot.
425 config UBOOT_ENTRY_ADDR
426 hex "uImage Entry Address"
429 Do not change this unless you know what you're doing. This is
430 hardcoded by the SPARC32 and LEON port.
432 This is the virtual address u-boot jumps to when booting the Linux
440 menu "Bus options (PCI etc.)"
450 bool "Sun Logical Domains support"
453 Say Y here is you want to support virtual devices via
457 bool "Support for PCI and PS/2 keyboard/mouse"
459 Find out whether your system includes a PCI bus. PCI is the name of
460 a bus system, i.e. the way the CPU talks to the other stuff inside
461 your box. If you say Y here, the kernel will include drivers and
462 infrastructure code to support PCI bus devices.
464 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
465 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
466 All of these platforms are extremely obscure, so say N if unsure.
469 def_bool PCI if SPARC64
476 depends on PCI && SPARC32 && !SPARC_LEON
481 depends on PCI && SPARC_LEON
485 bool "GRPCI Host Bridge Support"
489 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
490 PCI host controller is typically found in GRLIB SPARC32/LEON
491 systems. The driver has one property (all_pci_errors) controlled
492 from the bootloader that makes the GRPCI to generate interrupts
493 on detected PCI Parity and System errors.
496 bool "GRPCI2 Host Bridge Support"
500 Say Y here to include the GRPCI2 Host Bridge Driver.
502 source "drivers/pci/Kconfig"
504 source "drivers/pcmcia/Kconfig"
506 config SUN_OPENPROMFS
507 tristate "Openprom tree appears in /proc/openprom"
509 If you say Y, the OpenPROM device tree will be available as a
510 virtual file system, which you can mount to /proc/openprom by "mount
511 -t openpromfs none /proc/openprom".
513 To compile the /proc/openprom support as a module, choose M here: the
514 module will be called openpromfs.
516 Only choose N if you know in advance that you will not need to modify
517 OpenPROM settings on the running system.
523 depends on SPARC64 && PCI
525 config SPARC64_PCI_MSI
528 depends on SPARC64_PCI && PCI_MSI
532 menu "Executable file formats"
534 source "fs/Kconfig.binfmt"
540 select COMPAT_BINFMT_ELF
542 select ARCH_WANT_OLD_COMPAT_IPC
543 select COMPAT_OLD_SIGACTION
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"