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
27 select HAVE_DMA_API_DEBUG
28 select HAVE_ARCH_JUMP_LABEL
29 select HAVE_GENERIC_HARDIRQS
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select USE_GENERIC_SMP_HELPERS if SMP
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_CMOS_UPDATE
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA
43 select ODD_RT_SIGACTION
48 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_ARCH_TRANSPARENT_HUGEPAGE
67 select HAVE_DYNAMIC_FTRACE
68 select HAVE_FTRACE_MCOUNT_RECORD
69 select HAVE_SYSCALL_TRACEPOINTS
70 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
84 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
85 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
91 config STACKTRACE_SUPPORT
95 config LOCKDEP_SUPPORT
99 config HAVE_LATENCYTOP_SUPPORT
107 config HAVE_SETUP_PER_CPU_AREA
108 def_bool y if SPARC64
110 config NEED_PER_CPU_EMBED_FIRST_CHUNK
111 def_bool y if SPARC64
113 config NEED_PER_CPU_PAGE_FIRST_CHUNK
114 def_bool y if SPARC64
128 config NEED_DMA_MAP_STATE
131 config NEED_SG_DMA_LENGTH
134 config GENERIC_ISA_DMA
141 Generic GPIO API support
143 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
144 def_bool y if SPARC64
146 source "init/Kconfig"
148 source "kernel/Kconfig.freezer"
150 menu "Processor type and features"
153 bool "Symmetric multi-processing support"
155 This enables support for systems with more than one CPU. If you have
156 a system with only one CPU, say N. If you have a system with more
159 If you say N here, the kernel will run on single and multiprocessor
160 machines, but will use only one CPU of a multiprocessor machine. If
161 you say Y here, the kernel will run on many, but not all,
162 singleprocessor machines. On a singleprocessor machine, the kernel
163 will run faster if you say N here.
165 People using multiprocessor machines who say Y here should also say
166 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
167 Management" code will be disabled if you say Y here.
169 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
170 available at <http://www.tldp.org/docs.html#howto>.
172 If you don't know what to do here, say N.
175 int "Maximum number of CPUs"
177 range 2 32 if SPARC32
178 range 2 1024 if SPARC64
179 default 32 if SPARC32
180 default 64 if SPARC64
182 source kernel/Kconfig.hz
184 config RWSEM_GENERIC_SPINLOCK
188 config RWSEM_XCHGADD_ALGORITHM
192 config GENERIC_HWEIGHT
196 config GENERIC_CALIBRATE_DELAY
200 config ARCH_MAY_HAVE_PC_FDC
204 config EMULATED_CMPXCHG
208 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
209 is emulated, and therefore it is not completely atomic.
215 depends on SPARC32 && SMP
220 depends on SPARC64 && SMP
223 bool "Support for early boot text console"
227 Say Y here to enable a faster early framebuffer boot console.
230 bool "Enable seccomp to safely compute untrusted bytecode"
231 depends on SPARC64 && PROC_FS
234 This kernel feature is useful for number crunching applications
235 that may need to compute untrusted bytecode during their
236 execution. By using pipes or other transports made available to
237 the process as file descriptors supporting the read/write
238 syscalls, it's possible to isolate those applications in
239 their own address space using seccomp. Once seccomp is
240 enabled via /proc/<pid>/seccomp, it cannot be disabled
241 and the task is only allowed to execute a few safe syscalls
242 defined by each seccomp mode.
244 If unsure, say Y. Only embedded should say N here.
247 bool "Support for hot-pluggable CPUs"
248 depends on SPARC64 && SMP
251 Say Y here to experiment with turning CPUs off and on. CPUs
252 can be controlled through /sys/devices/system/cpu/cpu#.
253 Say N if you want to disable CPU hotplug.
256 source "drivers/cpufreq/Kconfig"
259 tristate "UltraSPARC-III CPU Frequency driver"
261 select CPU_FREQ_TABLE
263 This adds the CPUFreq driver for UltraSPARC-III processors.
265 For details, take a look at <file:Documentation/cpu-freq>.
270 tristate "UltraSPARC-IIe CPU Frequency driver"
272 select CPU_FREQ_TABLE
274 This adds the CPUFreq driver for UltraSPARC-IIe processors.
276 For details, take a look at <file:Documentation/cpu-freq>.
283 tristate "UltraSPARC-III Memory Controller driver"
287 This adds a driver for the UltraSPARC-III memory controller.
288 Loading this driver allows exact mnemonic strings to be
289 printed in the event of a memory error, so that the faulty DIMM
290 on the motherboard can be matched to the error.
292 If in doubt, say Y, as this information can be very useful.
294 # Global things across all Sun machines.
295 config GENERIC_LOCKBREAK
298 depends on SPARC64 && SMP && PREEMPT
302 depends on SPARC64 && SMP
307 depends on NEED_MULTIPLE_NODES
309 # Some NUMA nodes have memory ranges that span
310 # other nodes. Even though a pfn is valid and
311 # between a node's start and end pfns, it may not
312 # reside on that node. See memmap_init_zone()
314 config NODES_SPAN_OTHER_NODES
316 depends on NEED_MULTIPLE_NODES
318 config ARCH_SELECT_MEMORY_MODEL
319 def_bool y if SPARC64
321 config ARCH_SPARSEMEM_ENABLE
322 def_bool y if SPARC64
323 select SPARSEMEM_VMEMMAP_ENABLE
325 config ARCH_SPARSEMEM_DEFAULT
326 def_bool y if SPARC64
331 bool "SMT (Hyperthreading) scheduler support"
332 depends on SPARC64 && SMP
335 SMT scheduler support improves the CPU scheduler's decision making
336 when dealing with SPARC cpus at a cost of slightly increased overhead
337 in some places. If unsure say N here.
340 bool "Multi-core scheduler support"
341 depends on SPARC64 && SMP
344 Multi-core scheduler support improves the CPU scheduler's decision
345 making when dealing with multi-core CPU chips at a cost of slightly
346 increased overhead in some places. If unsure say N here.
348 source "kernel/Kconfig.preempt"
351 bool "Default bootloader kernel arguments"
355 string "Initial kernel command string"
356 depends on CMDLINE_BOOL
357 default "console=ttyS0,9600 root=/dev/sda1"
359 Say Y here if you want to be able to pass default arguments to
360 the kernel. This will be overridden by the bootloader, if you
361 use one (such as SILO). This is most useful if you want to boot
362 a kernel from TFTP, and want default options to be available
363 with having them passed on the command line.
365 NOTE: This option WILL override the PROM bootargs setting!
371 Enable power management and CPU standby features on supported
375 tristate "Sun4m LED driver"
378 This driver toggles the front-panel LED on sun4m systems
379 in a user-specifiable manner. Its state can be probed
380 by reading /proc/led and its blinking mode can be changed
381 via writes to /proc/led
383 config SERIAL_CONSOLE
388 If you say Y here, it will be possible to use a serial port as the
389 system console (the system console is the device which receives all
390 kernel messages and warnings and which allows logins in single user
391 mode). This could be useful if some terminal or printer is connected
394 Even if you say Y here, the currently visible virtual console
395 (/dev/tty0) will still be used as the system console by default, but
396 you can alter that using a kernel command line option such as
397 "console=ttyS1". (Try "man bootparam" or see the documentation of
398 your boot loader (silo) about how to pass options to the kernel at
401 If you don't have a graphics card installed and you say Y here, the
402 kernel will automatically use the first serial line, /dev/ttyS0, as
408 bool "Sparc Leon processor family"
411 If you say Y here if you are running on a SPARC-LEON processor.
412 The LEON processor is a synthesizable VHDL model of the
413 SPARC-v8 standard. LEON is part of the GRLIB collection of
414 IP cores that are distributed under GPL. GRLIB can be downloaded
415 from www.gaisler.com. You can download a sparc-linux cross-compilation
416 toolchain at www.gaisler.com.
419 menu "U-Boot options"
421 config UBOOT_LOAD_ADDR
422 hex "uImage Load Address"
425 U-Boot kernel load address, the address in physical address space
426 where u-boot will place the Linux kernel before booting it.
427 This address is normally the base address of main memory + 0x4000.
429 config UBOOT_FLASH_ADDR
430 hex "uImage.o Load Address"
433 Optional setting only affecting the uImage.o ELF-image used to
434 download the uImage file to the target using a ELF-loader other than
435 U-Boot. It may for example be used to download an uImage to FLASH with
436 the GRMON utility before even starting u-boot.
438 config UBOOT_ENTRY_ADDR
439 hex "uImage Entry Address"
442 Do not change this unless you know what you're doing. This is
443 hardcoded by the SPARC32 and LEON port.
445 This is the virtual address u-boot jumps to when booting the Linux
453 menu "Bus options (PCI etc.)"
463 bool "Sun Logical Domains support"
466 Say Y here is you want to support virtual devices via
470 bool "Support for PCI and PS/2 keyboard/mouse"
472 Find out whether your system includes a PCI bus. PCI is the name of
473 a bus system, i.e. the way the CPU talks to the other stuff inside
474 your box. If you say Y here, the kernel will include drivers and
475 infrastructure code to support PCI bus devices.
477 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
478 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
479 All of these platforms are extremely obscure, so say N if unsure.
482 def_bool PCI if SPARC64
489 depends on PCI && SPARC32 && !SPARC_LEON
494 depends on PCI && SPARC_LEON
498 bool "GRPCI2 Host Bridge Support"
502 Say Y here to include the GRPCI2 Host Bridge Driver.
504 source "drivers/pci/Kconfig"
506 source "drivers/pcmcia/Kconfig"
508 config SUN_OPENPROMFS
509 tristate "Openprom tree appears in /proc/openprom"
511 If you say Y, the OpenPROM device tree will be available as a
512 virtual file system, which you can mount to /proc/openprom by "mount
513 -t openpromfs none /proc/openprom".
515 To compile the /proc/openprom support as a module, choose M here: the
516 module will be called openpromfs.
518 Only choose N if you know in advance that you will not need to modify
519 OpenPROM settings on the running system.
525 depends on SPARC64 && PCI
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"