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
49 select GENERIC_ATOMIC64
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_KRETPROBES
61 select HAVE_RCU_TABLE_FREE if SMP
63 select HAVE_MEMBLOCK_NODE_MAP
64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_CONTEXT_TRACKING
69 select HAVE_DEBUG_KMEMLEAK
74 select RTC_DRV_STARFIRE
75 select HAVE_PERF_EVENTS
76 select PERF_USE_VMALLOC
77 select IRQ_PREFLOW_FASTEOI
78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
79 select HAVE_C_RECORDMCOUNT
81 select HAVE_ARCH_AUDITSYSCALL
82 select ARCH_SUPPORTS_ATOMIC_RMW
87 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
88 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
90 config ARCH_PROC_KCORE_TEXT
97 config STACKTRACE_SUPPORT
101 config LOCKDEP_SUPPORT
105 config ARCH_HIBERNATION_POSSIBLE
106 def_bool y if SPARC64
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
143 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
144 def_bool y if SPARC64
146 config PGTABLE_LEVELS
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 uni- 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 uniprocessor machines. On a uniprocessor 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
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
254 Say Y here to experiment with turning CPUs off and on. CPUs
255 can be controlled through /sys/devices/system/cpu/cpu#.
256 Say N if you want to disable CPU hotplug.
259 source "drivers/cpufreq/Kconfig"
263 tristate "UltraSPARC-III Memory Controller driver"
267 This adds a driver for the UltraSPARC-III memory controller.
268 Loading this driver allows exact mnemonic strings to be
269 printed in the event of a memory error, so that the faulty DIMM
270 on the motherboard can be matched to the error.
272 If in doubt, say Y, as this information can be very useful.
274 # Global things across all Sun machines.
275 config GENERIC_LOCKBREAK
278 depends on SPARC64 && SMP && PREEMPT
282 depends on SPARC64 && SMP
287 depends on NEED_MULTIPLE_NODES
289 # Some NUMA nodes have memory ranges that span
290 # other nodes. Even though a pfn is valid and
291 # between a node's start and end pfns, it may not
292 # reside on that node. See memmap_init_zone()
294 config NODES_SPAN_OTHER_NODES
296 depends on NEED_MULTIPLE_NODES
298 config ARCH_SELECT_MEMORY_MODEL
299 def_bool y if SPARC64
301 config ARCH_SPARSEMEM_ENABLE
302 def_bool y if SPARC64
303 select SPARSEMEM_VMEMMAP_ENABLE
305 config ARCH_SPARSEMEM_DEFAULT
306 def_bool y if SPARC64
311 source "kernel/power/Kconfig"
315 bool "SMT (Hyperthreading) scheduler support"
316 depends on SPARC64 && SMP
319 SMT scheduler support improves the CPU scheduler's decision making
320 when dealing with SPARC cpus at a cost of slightly increased overhead
321 in some places. If unsure say N here.
324 bool "Multi-core scheduler support"
325 depends on SPARC64 && SMP
328 Multi-core scheduler support improves the CPU scheduler's decision
329 making when dealing with multi-core CPU chips at a cost of slightly
330 increased overhead in some places. If unsure say N here.
332 source "kernel/Kconfig.preempt"
335 bool "Default bootloader kernel arguments"
339 string "Initial kernel command string"
340 depends on CMDLINE_BOOL
341 default "console=ttyS0,9600 root=/dev/sda1"
343 Say Y here if you want to be able to pass default arguments to
344 the kernel. This will be overridden by the bootloader, if you
345 use one (such as SILO). This is most useful if you want to boot
346 a kernel from TFTP, and want default options to be available
347 with having them passed on the command line.
349 NOTE: This option WILL override the PROM bootargs setting!
355 Enable power management and CPU standby features on supported
359 tristate "Sun4m LED driver"
362 This driver toggles the front-panel LED on sun4m systems
363 in a user-specifiable manner. Its state can be probed
364 by reading /proc/led and its blinking mode can be changed
365 via writes to /proc/led
367 config SERIAL_CONSOLE
372 If you say Y here, it will be possible to use a serial port as the
373 system console (the system console is the device which receives all
374 kernel messages and warnings and which allows logins in single user
375 mode). This could be useful if some terminal or printer is connected
378 Even if you say Y here, the currently visible virtual console
379 (/dev/tty0) will still be used as the system console by default, but
380 you can alter that using a kernel command line option such as
381 "console=ttyS1". (Try "man bootparam" or see the documentation of
382 your boot loader (silo) about how to pass options to the kernel at
385 If you don't have a graphics card installed and you say Y here, the
386 kernel will automatically use the first serial line, /dev/ttyS0, as
392 bool "Sparc Leon processor family"
394 select USB_EHCI_BIG_ENDIAN_MMIO
395 select USB_EHCI_BIG_ENDIAN_DESC
397 If you say Y here if you are running on a SPARC-LEON processor.
398 The LEON processor is a synthesizable VHDL model of the
399 SPARC-v8 standard. LEON is part of the GRLIB collection of
400 IP cores that are distributed under GPL. GRLIB can be downloaded
401 from www.gaisler.com. You can download a sparc-linux cross-compilation
402 toolchain at www.gaisler.com.
405 menu "U-Boot options"
407 config UBOOT_LOAD_ADDR
408 hex "uImage Load Address"
411 U-Boot kernel load address, the address in physical address space
412 where u-boot will place the Linux kernel before booting it.
413 This address is normally the base address of main memory + 0x4000.
415 config UBOOT_FLASH_ADDR
416 hex "uImage.o Load Address"
419 Optional setting only affecting the uImage.o ELF-image used to
420 download the uImage file to the target using a ELF-loader other than
421 U-Boot. It may for example be used to download an uImage to FLASH with
422 the GRMON utility before even starting u-boot.
424 config UBOOT_ENTRY_ADDR
425 hex "uImage Entry Address"
428 Do not change this unless you know what you're doing. This is
429 hardcoded by the SPARC32 and LEON port.
431 This is the virtual address u-boot jumps to when booting the Linux
439 menu "Bus options (PCI etc.)"
449 bool "Sun Logical Domains support"
452 Say Y here is you want to support virtual devices via
456 bool "Support for PCI and PS/2 keyboard/mouse"
458 Find out whether your system includes a PCI bus. PCI is the name of
459 a bus system, i.e. the way the CPU talks to the other stuff inside
460 your box. If you say Y here, the kernel will include drivers and
461 infrastructure code to support PCI bus devices.
463 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
464 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
465 All of these platforms are extremely obscure, so say N if unsure.
468 def_bool PCI if SPARC64
475 depends on PCI && SPARC32 && !SPARC_LEON
480 depends on PCI && SPARC_LEON
484 bool "GRPCI Host Bridge Support"
488 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
489 PCI host controller is typically found in GRLIB SPARC32/LEON
490 systems. The driver has one property (all_pci_errors) controlled
491 from the bootloader that makes the GRPCI to generate interrupts
492 on detected PCI Parity and System errors.
495 bool "GRPCI2 Host Bridge Support"
499 Say Y here to include the GRPCI2 Host Bridge Driver.
501 source "drivers/pci/Kconfig"
503 source "drivers/pcmcia/Kconfig"
505 config SUN_OPENPROMFS
506 tristate "Openprom tree appears in /proc/openprom"
508 If you say Y, the OpenPROM device tree will be available as a
509 virtual file system, which you can mount to /proc/openprom by "mount
510 -t openpromfs none /proc/openprom".
512 To compile the /proc/openprom support as a module, choose M here: the
513 module will be called openpromfs.
515 Only choose N if you know in advance that you will not need to modify
516 OpenPROM settings on the running system.
522 depends on SPARC64 && PCI
524 config SPARC64_PCI_MSI
527 depends on SPARC64_PCI && PCI_MSI
531 menu "Executable file formats"
533 source "fs/Kconfig.binfmt"
539 select COMPAT_BINFMT_ELF
541 select ARCH_WANT_OLD_COMPAT_IPC
542 select COMPAT_OLD_SIGACTION
544 config SYSVIPC_COMPAT
546 depends on COMPAT && SYSVIPC
550 def_bool y if COMPAT && KEYS
556 source "drivers/Kconfig"
558 source "drivers/sbus/char/Kconfig"
562 source "arch/sparc/Kconfig.debug"
564 source "security/Kconfig"
566 source "crypto/Kconfig"