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
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL if SPARC64
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
40 select MODULES_USE_ELF_RELA
41 select ODD_RT_SIGACTION
43 select ARCH_HAS_SG_CHAIN
44 select CPU_NO_EFFICIENT_FFS
45 select HAVE_ARCH_HARDENED_USERCOPY
49 select GENERIC_ATOMIC64
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
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
86 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
87 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
89 config ARCH_PROC_KCORE_TEXT
96 config STACKTRACE_SUPPORT
100 config LOCKDEP_SUPPORT
104 config ARCH_HIBERNATION_POSSIBLE
105 def_bool y if SPARC64
111 config HAVE_SETUP_PER_CPU_AREA
112 def_bool y if SPARC64
114 config NEED_PER_CPU_EMBED_FIRST_CHUNK
115 def_bool y if SPARC64
117 config NEED_PER_CPU_PAGE_FIRST_CHUNK
118 def_bool y if SPARC64
132 config NEED_DMA_MAP_STATE
135 config NEED_SG_DMA_LENGTH
138 config GENERIC_ISA_DMA
142 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
143 def_bool y if SPARC64
145 config PGTABLE_LEVELS
149 source "init/Kconfig"
151 source "kernel/Kconfig.freezer"
153 menu "Processor type and features"
156 bool "Symmetric multi-processing support"
158 This enables support for systems with more than one CPU. If you have
159 a system with only one CPU, say N. If you have a system with more
162 If you say N here, the kernel will run on uni- and multiprocessor
163 machines, but will use only one CPU of a multiprocessor machine. If
164 you say Y here, the kernel will run on many, but not all,
165 uniprocessor machines. On a uniprocessor machine, the kernel
166 will run faster if you say N here.
168 People using multiprocessor machines who say Y here should also say
169 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
170 Management" code will be disabled if you say Y here.
172 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
173 available at <http://www.tldp.org/docs.html#howto>.
175 If you don't know what to do here, say N.
178 int "Maximum number of CPUs"
180 range 2 32 if SPARC32
181 range 2 1024 if SPARC64
182 default 32 if SPARC32
183 default 64 if SPARC64
185 source kernel/Kconfig.hz
187 config RWSEM_GENERIC_SPINLOCK
191 config RWSEM_XCHGADD_ALGORITHM
195 config GENERIC_HWEIGHT
199 config GENERIC_CALIBRATE_DELAY
203 config ARCH_MAY_HAVE_PC_FDC
207 config EMULATED_CMPXCHG
211 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
212 is emulated, and therefore it is not completely atomic.
218 depends on SPARC32 && SMP
223 depends on SPARC64 && SMP
226 bool "Support for early boot text console"
230 Say Y here to enable a faster early framebuffer boot console.
233 bool "Enable seccomp to safely compute untrusted bytecode"
234 depends on SPARC64 && PROC_FS
237 This kernel feature is useful for number crunching applications
238 that may need to compute untrusted bytecode during their
239 execution. By using pipes or other transports made available to
240 the process as file descriptors supporting the read/write
241 syscalls, it's possible to isolate those applications in
242 their own address space using seccomp. Once seccomp is
243 enabled via /proc/<pid>/seccomp, it cannot be disabled
244 and the task is only allowed to execute a few safe syscalls
245 defined by each seccomp mode.
247 If unsure, say Y. Only embedded should say N here.
250 bool "Support for hot-pluggable CPUs"
251 depends on SPARC64 && SMP
253 Say Y here to experiment with turning CPUs off and on. CPUs
254 can be controlled through /sys/devices/system/cpu/cpu#.
255 Say N if you want to disable CPU hotplug.
258 source "drivers/cpufreq/Kconfig"
262 tristate "UltraSPARC-III Memory Controller driver"
266 This adds a driver for the UltraSPARC-III memory controller.
267 Loading this driver allows exact mnemonic strings to be
268 printed in the event of a memory error, so that the faulty DIMM
269 on the motherboard can be matched to the error.
271 If in doubt, say Y, as this information can be very useful.
273 # Global things across all Sun machines.
274 config GENERIC_LOCKBREAK
277 depends on SPARC64 && SMP && PREEMPT
281 depends on SPARC64 && SMP
286 depends on NEED_MULTIPLE_NODES
288 # Some NUMA nodes have memory ranges that span
289 # other nodes. Even though a pfn is valid and
290 # between a node's start and end pfns, it may not
291 # reside on that node. See memmap_init_zone()
293 config NODES_SPAN_OTHER_NODES
295 depends on NEED_MULTIPLE_NODES
297 config ARCH_SELECT_MEMORY_MODEL
298 def_bool y if SPARC64
300 config ARCH_SPARSEMEM_ENABLE
301 def_bool y if SPARC64
302 select SPARSEMEM_VMEMMAP_ENABLE
304 config ARCH_SPARSEMEM_DEFAULT
305 def_bool y if SPARC64
310 source "kernel/power/Kconfig"
314 bool "SMT (Hyperthreading) scheduler support"
315 depends on SPARC64 && SMP
318 SMT scheduler support improves the CPU scheduler's decision making
319 when dealing with SPARC cpus at a cost of slightly increased overhead
320 in some places. If unsure say N here.
323 bool "Multi-core scheduler support"
324 depends on SPARC64 && SMP
327 Multi-core scheduler support improves the CPU scheduler's decision
328 making when dealing with multi-core CPU chips at a cost of slightly
329 increased overhead in some places. If unsure say N here.
331 source "kernel/Kconfig.preempt"
334 bool "Default bootloader kernel arguments"
338 string "Initial kernel command string"
339 depends on CMDLINE_BOOL
340 default "console=ttyS0,9600 root=/dev/sda1"
342 Say Y here if you want to be able to pass default arguments to
343 the kernel. This will be overridden by the bootloader, if you
344 use one (such as SILO). This is most useful if you want to boot
345 a kernel from TFTP, and want default options to be available
346 with having them passed on the command line.
348 NOTE: This option WILL override the PROM bootargs setting!
354 Enable power management and CPU standby features on supported
358 tristate "Sun4m LED driver"
361 This driver toggles the front-panel LED on sun4m systems
362 in a user-specifiable manner. Its state can be probed
363 by reading /proc/led and its blinking mode can be changed
364 via writes to /proc/led
366 config SERIAL_CONSOLE
371 If you say Y here, it will be possible to use a serial port as the
372 system console (the system console is the device which receives all
373 kernel messages and warnings and which allows logins in single user
374 mode). This could be useful if some terminal or printer is connected
377 Even if you say Y here, the currently visible virtual console
378 (/dev/tty0) will still be used as the system console by default, but
379 you can alter that using a kernel command line option such as
380 "console=ttyS1". (Try "man bootparam" or see the documentation of
381 your boot loader (silo) about how to pass options to the kernel at
384 If you don't have a graphics card installed and you say Y here, the
385 kernel will automatically use the first serial line, /dev/ttyS0, as
391 bool "Sparc Leon processor family"
393 select USB_EHCI_BIG_ENDIAN_MMIO
394 select USB_EHCI_BIG_ENDIAN_DESC
396 If you say Y here if you are running on a SPARC-LEON processor.
397 The LEON processor is a synthesizable VHDL model of the
398 SPARC-v8 standard. LEON is part of the GRLIB collection of
399 IP cores that are distributed under GPL. GRLIB can be downloaded
400 from www.gaisler.com. You can download a sparc-linux cross-compilation
401 toolchain at www.gaisler.com.
404 menu "U-Boot options"
406 config UBOOT_LOAD_ADDR
407 hex "uImage Load Address"
410 U-Boot kernel load address, the address in physical address space
411 where u-boot will place the Linux kernel before booting it.
412 This address is normally the base address of main memory + 0x4000.
414 config UBOOT_FLASH_ADDR
415 hex "uImage.o Load Address"
418 Optional setting only affecting the uImage.o ELF-image used to
419 download the uImage file to the target using a ELF-loader other than
420 U-Boot. It may for example be used to download an uImage to FLASH with
421 the GRMON utility before even starting u-boot.
423 config UBOOT_ENTRY_ADDR
424 hex "uImage Entry Address"
427 Do not change this unless you know what you're doing. This is
428 hardcoded by the SPARC32 and LEON port.
430 This is the virtual address u-boot jumps to when booting the Linux
438 menu "Bus options (PCI etc.)"
448 bool "Sun Logical Domains support"
451 Say Y here is you want to support virtual devices via
455 bool "Support for PCI and PS/2 keyboard/mouse"
457 Find out whether your system includes a PCI bus. PCI is the name of
458 a bus system, i.e. the way the CPU talks to the other stuff inside
459 your box. If you say Y here, the kernel will include drivers and
460 infrastructure code to support PCI bus devices.
462 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
463 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
464 All of these platforms are extremely obscure, so say N if unsure.
467 def_bool PCI if SPARC64
474 depends on PCI && SPARC32 && !SPARC_LEON
479 depends on PCI && SPARC_LEON
483 bool "GRPCI Host Bridge Support"
487 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
488 PCI host controller is typically found in GRLIB SPARC32/LEON
489 systems. The driver has one property (all_pci_errors) controlled
490 from the bootloader that makes the GRPCI to generate interrupts
491 on detected PCI Parity and System errors.
494 bool "GRPCI2 Host Bridge Support"
498 Say Y here to include the GRPCI2 Host Bridge Driver.
500 source "drivers/pci/Kconfig"
502 source "drivers/pcmcia/Kconfig"
504 config SUN_OPENPROMFS
505 tristate "Openprom tree appears in /proc/openprom"
507 If you say Y, the OpenPROM device tree will be available as a
508 virtual file system, which you can mount to /proc/openprom by "mount
509 -t openpromfs none /proc/openprom".
511 To compile the /proc/openprom support as a module, choose M here: the
512 module will be called openpromfs.
514 Only choose N if you know in advance that you will not need to modify
515 OpenPROM settings on the running system.
521 depends on SPARC64 && PCI
523 config SPARC64_PCI_MSI
526 depends on SPARC64_PCI && PCI_MSI
530 menu "Executable file formats"
532 source "fs/Kconfig.binfmt"
538 select COMPAT_BINFMT_ELF
540 select ARCH_WANT_OLD_COMPAT_IPC
541 select COMPAT_OLD_SIGACTION
543 config SYSVIPC_COMPAT
545 depends on COMPAT && SYSVIPC
549 def_bool y if COMPAT && KEYS
555 source "drivers/Kconfig"
557 source "drivers/sbus/char/Kconfig"
561 source "arch/sparc/Kconfig.debug"
563 source "security/Kconfig"
565 source "crypto/Kconfig"