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
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
45 select GENERIC_ATOMIC64
51 select ARCH_SUPPORTS_MSI
52 select HAVE_FUNCTION_TRACER
53 select HAVE_FUNCTION_GRAPH_TRACER
54 select HAVE_FUNCTION_GRAPH_FP_TEST
55 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
56 select HAVE_KRETPROBES
58 select HAVE_RCU_TABLE_FREE if SMP
60 select HAVE_MEMBLOCK_NODE_MAP
61 select HAVE_SYSCALL_WRAPPERS
62 select HAVE_DYNAMIC_FTRACE
63 select HAVE_FTRACE_MCOUNT_RECORD
64 select HAVE_SYSCALL_TRACEPOINTS
65 select HAVE_DEBUG_KMEMLEAK
69 select RTC_DRV_STARFIRE
70 select HAVE_PERF_EVENTS
71 select PERF_USE_VMALLOC
72 select IRQ_PREFLOW_FASTEOI
73 select ARCH_HAVE_NMI_SAFE_CMPXCHG
74 select HAVE_C_RECORDMCOUNT
79 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
80 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
82 # CONFIG_BITS can be used at source level to get 32/64 bits
92 config STACKTRACE_SUPPORT
96 config LOCKDEP_SUPPORT
100 config HAVE_LATENCYTOP_SUPPORT
108 config HAVE_SETUP_PER_CPU_AREA
109 def_bool y if SPARC64
111 config NEED_PER_CPU_EMBED_FIRST_CHUNK
112 def_bool y if SPARC64
114 config NEED_PER_CPU_PAGE_FIRST_CHUNK
115 def_bool y if SPARC64
129 config NEED_DMA_MAP_STATE
132 config NEED_SG_DMA_LENGTH
135 config GENERIC_ISA_DMA
142 Generic GPIO API support
144 config ARCH_NO_VIRT_TO_BUS
147 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
148 def_bool y if SPARC64
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 single 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 singleprocessor machines. On a singleprocessor 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
198 default y if !ULTRA_HAS_POPULATION_COUNT
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 prompt "Kernel page size" if SPARC64
235 default SPARC64_PAGE_SIZE_8KB
237 config SPARC64_PAGE_SIZE_8KB
240 This lets you select the page size of the kernel.
242 8KB and 64KB work quite well, since SPARC ELF sections
243 provide for up to 64KB alignment.
245 If you don't know what to do, choose 8KB.
247 config SPARC64_PAGE_SIZE_64KB
253 bool "Enable seccomp to safely compute untrusted bytecode"
254 depends on SPARC64 && PROC_FS
257 This kernel feature is useful for number crunching applications
258 that may need to compute untrusted bytecode during their
259 execution. By using pipes or other transports made available to
260 the process as file descriptors supporting the read/write
261 syscalls, it's possible to isolate those applications in
262 their own address space using seccomp. Once seccomp is
263 enabled via /proc/<pid>/seccomp, it cannot be disabled
264 and the task is only allowed to execute a few safe syscalls
265 defined by each seccomp mode.
267 If unsure, say Y. Only embedded should say N here.
270 bool "Support for hot-pluggable CPUs"
271 depends on SPARC64 && SMP
274 Say Y here to experiment with turning CPUs off and on. CPUs
275 can be controlled through /sys/devices/system/cpu/cpu#.
276 Say N if you want to disable CPU hotplug.
279 source "drivers/cpufreq/Kconfig"
282 tristate "UltraSPARC-III CPU Frequency driver"
284 select CPU_FREQ_TABLE
286 This adds the CPUFreq driver for UltraSPARC-III processors.
288 For details, take a look at <file:Documentation/cpu-freq>.
293 tristate "UltraSPARC-IIe CPU Frequency driver"
295 select CPU_FREQ_TABLE
297 This adds the CPUFreq driver for UltraSPARC-IIe processors.
299 For details, take a look at <file:Documentation/cpu-freq>.
306 tristate "UltraSPARC-III Memory Controller driver"
310 This adds a driver for the UltraSPARC-III memory controller.
311 Loading this driver allows exact mnemonic strings to be
312 printed in the event of a memory error, so that the faulty DIMM
313 on the motherboard can be matched to the error.
315 If in doubt, say Y, as this information can be very useful.
317 # Global things across all Sun machines.
318 config GENERIC_LOCKBREAK
321 depends on SPARC64 && SMP && PREEMPT
324 prompt "SPARC64 Huge TLB Page Size"
325 depends on SPARC64 && HUGETLB_PAGE
326 default HUGETLB_PAGE_SIZE_4MB
328 config HUGETLB_PAGE_SIZE_4MB
331 config HUGETLB_PAGE_SIZE_512K
334 config HUGETLB_PAGE_SIZE_64K
335 depends on !SPARC64_PAGE_SIZE_64KB
342 depends on SPARC64 && SMP
347 depends on NEED_MULTIPLE_NODES
349 # Some NUMA nodes have memory ranges that span
350 # other nodes. Even though a pfn is valid and
351 # between a node's start and end pfns, it may not
352 # reside on that node. See memmap_init_zone()
354 config NODES_SPAN_OTHER_NODES
356 depends on NEED_MULTIPLE_NODES
358 config ARCH_SELECT_MEMORY_MODEL
359 def_bool y if SPARC64
361 config ARCH_SPARSEMEM_ENABLE
362 def_bool y if SPARC64
363 select SPARSEMEM_VMEMMAP_ENABLE
365 config ARCH_SPARSEMEM_DEFAULT
366 def_bool y if SPARC64
371 bool "SMT (Hyperthreading) scheduler support"
372 depends on SPARC64 && SMP
375 SMT scheduler support improves the CPU scheduler's decision making
376 when dealing with SPARC cpus at a cost of slightly increased overhead
377 in some places. If unsure say N here.
380 bool "Multi-core scheduler support"
381 depends on SPARC64 && SMP
384 Multi-core scheduler support improves the CPU scheduler's decision
385 making when dealing with multi-core CPU chips at a cost of slightly
386 increased overhead in some places. If unsure say N here.
388 source "kernel/Kconfig.preempt"
391 bool "Default bootloader kernel arguments"
395 string "Initial kernel command string"
396 depends on CMDLINE_BOOL
397 default "console=ttyS0,9600 root=/dev/sda1"
399 Say Y here if you want to be able to pass default arguments to
400 the kernel. This will be overridden by the bootloader, if you
401 use one (such as SILO). This is most useful if you want to boot
402 a kernel from TFTP, and want default options to be available
403 with having them passed on the command line.
405 NOTE: This option WILL override the PROM bootargs setting!
411 Enable power management and CPU standby features on supported
415 tristate "Sun4m LED driver"
418 This driver toggles the front-panel LED on sun4m systems
419 in a user-specifiable manner. Its state can be probed
420 by reading /proc/led and its blinking mode can be changed
421 via writes to /proc/led
423 config SERIAL_CONSOLE
428 If you say Y here, it will be possible to use a serial port as the
429 system console (the system console is the device which receives all
430 kernel messages and warnings and which allows logins in single user
431 mode). This could be useful if some terminal or printer is connected
434 Even if you say Y here, the currently visible virtual console
435 (/dev/tty0) will still be used as the system console by default, but
436 you can alter that using a kernel command line option such as
437 "console=ttyS1". (Try "man bootparam" or see the documentation of
438 your boot loader (silo) about how to pass options to the kernel at
441 If you don't have a graphics card installed and you say Y here, the
442 kernel will automatically use the first serial line, /dev/ttyS0, as
448 bool "Sparc Leon processor family"
451 If you say Y here if you are running on a SPARC-LEON processor.
452 The LEON processor is a synthesizable VHDL model of the
453 SPARC-v8 standard. LEON is part of the GRLIB collection of
454 IP cores that are distributed under GPL. GRLIB can be downloaded
455 from www.gaisler.com. You can download a sparc-linux cross-compilation
456 toolchain at www.gaisler.com.
459 menu "U-Boot options"
461 config UBOOT_LOAD_ADDR
462 hex "uImage Load Address"
465 U-Boot kernel load address, the address in physical address space
466 where u-boot will place the Linux kernel before booting it.
467 This address is normally the base address of main memory + 0x4000.
469 config UBOOT_FLASH_ADDR
470 hex "uImage.o Load Address"
473 Optional setting only affecting the uImage.o ELF-image used to
474 download the uImage file to the target using a ELF-loader other than
475 U-Boot. It may for example be used to download an uImage to FLASH with
476 the GRMON utility before even starting u-boot.
478 config UBOOT_ENTRY_ADDR
479 hex "uImage Entry Address"
482 Do not change this unless you know what you're doing. This is
483 hardcoded by the SPARC32 and LEON port.
485 This is the virtual address u-boot jumps to when booting the Linux
493 menu "Bus options (PCI etc.)"
503 bool "Sun Logical Domains support"
506 Say Y here is you want to support virtual devices via
510 bool "Support for PCI and PS/2 keyboard/mouse"
512 Find out whether your system includes a PCI bus. PCI is the name of
513 a bus system, i.e. the way the CPU talks to the other stuff inside
514 your box. If you say Y here, the kernel will include drivers and
515 infrastructure code to support PCI bus devices.
517 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
518 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
519 All of these platforms are extremely obscure, so say N if unsure.
522 def_bool PCI if SPARC64
529 depends on PCI && SPARC32 && !SPARC_LEON
534 depends on PCI && SPARC_LEON
538 bool "GRPCI2 Host Bridge Support"
542 Say Y here to include the GRPCI2 Host Bridge Driver.
544 source "drivers/pci/Kconfig"
546 source "drivers/pcmcia/Kconfig"
548 config SUN_OPENPROMFS
549 tristate "Openprom tree appears in /proc/openprom"
551 If you say Y, the OpenPROM device tree will be available as a
552 virtual file system, which you can mount to /proc/openprom by "mount
553 -t openpromfs none /proc/openprom".
555 To compile the /proc/openprom support as a module, choose M here: the
556 module will be called openpromfs.
558 Only choose N if you know in advance that you will not need to modify
559 OpenPROM settings on the running system.
565 depends on SPARC64 && PCI
569 menu "Executable file formats"
571 source "fs/Kconfig.binfmt"
577 select COMPAT_BINFMT_ELF
579 select ARCH_WANT_OLD_COMPAT_IPC
581 config SYSVIPC_COMPAT
583 depends on COMPAT && SYSVIPC
587 def_bool y if COMPAT && KEYS
593 source "drivers/Kconfig"
595 source "drivers/sbus/char/Kconfig"
599 source "arch/sparc/Kconfig.debug"
601 source "security/Kconfig"
603 source "crypto/Kconfig"