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 ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select USE_GENERIC_SMP_HELPERS if SMP
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_CMOS_UPDATE
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
43 select GENERIC_ATOMIC64
48 select ARCH_SUPPORTS_MSI
49 select HAVE_FUNCTION_TRACER
50 select HAVE_FUNCTION_GRAPH_TRACER
51 select HAVE_FUNCTION_GRAPH_FP_TEST
52 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
53 select HAVE_KRETPROBES
55 select HAVE_RCU_TABLE_FREE if SMP
57 select HAVE_MEMBLOCK_NODE_MAP
58 select HAVE_SYSCALL_WRAPPERS
59 select HAVE_DYNAMIC_FTRACE
60 select HAVE_FTRACE_MCOUNT_RECORD
61 select HAVE_SYSCALL_TRACEPOINTS
65 select RTC_DRV_STARFIRE
66 select HAVE_PERF_EVENTS
67 select PERF_USE_VMALLOC
68 select IRQ_PREFLOW_FASTEOI
69 select ARCH_HAVE_NMI_SAFE_CMPXCHG
70 select HAVE_C_RECORDMCOUNT
75 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
76 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
78 # CONFIG_BITS can be used at source level to get 32/64 bits
88 config STACKTRACE_SUPPORT
92 config LOCKDEP_SUPPORT
96 config HAVE_LATENCYTOP_SUPPORT
104 config HAVE_SETUP_PER_CPU_AREA
105 def_bool y if SPARC64
107 config NEED_PER_CPU_EMBED_FIRST_CHUNK
108 def_bool y if SPARC64
110 config NEED_PER_CPU_PAGE_FIRST_CHUNK
111 def_bool y if SPARC64
125 config NEED_DMA_MAP_STATE
128 config NEED_SG_DMA_LENGTH
131 config GENERIC_ISA_DMA
138 Generic GPIO API support
140 config ARCH_NO_VIRT_TO_BUS
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
194 default y if !ULTRA_HAS_POPULATION_COUNT
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 prompt "Kernel page size" if SPARC64
231 default SPARC64_PAGE_SIZE_8KB
233 config SPARC64_PAGE_SIZE_8KB
236 This lets you select the page size of the kernel.
238 8KB and 64KB work quite well, since SPARC ELF sections
239 provide for up to 64KB alignment.
241 If you don't know what to do, choose 8KB.
243 config SPARC64_PAGE_SIZE_64KB
249 bool "Enable seccomp to safely compute untrusted bytecode"
250 depends on SPARC64 && PROC_FS
253 This kernel feature is useful for number crunching applications
254 that may need to compute untrusted bytecode during their
255 execution. By using pipes or other transports made available to
256 the process as file descriptors supporting the read/write
257 syscalls, it's possible to isolate those applications in
258 their own address space using seccomp. Once seccomp is
259 enabled via /proc/<pid>/seccomp, it cannot be disabled
260 and the task is only allowed to execute a few safe syscalls
261 defined by each seccomp mode.
263 If unsure, say Y. Only embedded should say N here.
266 bool "Support for hot-pluggable CPUs"
267 depends on SPARC64 && SMP
270 Say Y here to experiment with turning CPUs off and on. CPUs
271 can be controlled through /sys/devices/system/cpu/cpu#.
272 Say N if you want to disable CPU hotplug.
275 source "drivers/cpufreq/Kconfig"
278 tristate "UltraSPARC-III CPU Frequency driver"
280 select CPU_FREQ_TABLE
282 This adds the CPUFreq driver for UltraSPARC-III processors.
284 For details, take a look at <file:Documentation/cpu-freq>.
289 tristate "UltraSPARC-IIe CPU Frequency driver"
291 select CPU_FREQ_TABLE
293 This adds the CPUFreq driver for UltraSPARC-IIe processors.
295 For details, take a look at <file:Documentation/cpu-freq>.
302 tristate "UltraSPARC-III Memory Controller driver"
306 This adds a driver for the UltraSPARC-III memory controller.
307 Loading this driver allows exact mnemonic strings to be
308 printed in the event of a memory error, so that the faulty DIMM
309 on the motherboard can be matched to the error.
311 If in doubt, say Y, as this information can be very useful.
313 # Global things across all Sun machines.
314 config GENERIC_LOCKBREAK
317 depends on SPARC64 && SMP && PREEMPT
320 prompt "SPARC64 Huge TLB Page Size"
321 depends on SPARC64 && HUGETLB_PAGE
322 default HUGETLB_PAGE_SIZE_4MB
324 config HUGETLB_PAGE_SIZE_4MB
327 config HUGETLB_PAGE_SIZE_512K
330 config HUGETLB_PAGE_SIZE_64K
331 depends on !SPARC64_PAGE_SIZE_64KB
338 depends on SPARC64 && SMP
343 depends on NEED_MULTIPLE_NODES
345 # Some NUMA nodes have memory ranges that span
346 # other nodes. Even though a pfn is valid and
347 # between a node's start and end pfns, it may not
348 # reside on that node. See memmap_init_zone()
350 config NODES_SPAN_OTHER_NODES
352 depends on NEED_MULTIPLE_NODES
354 config ARCH_SELECT_MEMORY_MODEL
355 def_bool y if SPARC64
357 config ARCH_SPARSEMEM_ENABLE
358 def_bool y if SPARC64
359 select SPARSEMEM_VMEMMAP_ENABLE
361 config ARCH_SPARSEMEM_DEFAULT
362 def_bool y if SPARC64
367 bool "SMT (Hyperthreading) scheduler support"
368 depends on SPARC64 && SMP
371 SMT scheduler support improves the CPU scheduler's decision making
372 when dealing with SPARC cpus at a cost of slightly increased overhead
373 in some places. If unsure say N here.
376 bool "Multi-core scheduler support"
377 depends on SPARC64 && SMP
380 Multi-core scheduler support improves the CPU scheduler's decision
381 making when dealing with multi-core CPU chips at a cost of slightly
382 increased overhead in some places. If unsure say N here.
384 source "kernel/Kconfig.preempt"
387 bool "Default bootloader kernel arguments"
391 string "Initial kernel command string"
392 depends on CMDLINE_BOOL
393 default "console=ttyS0,9600 root=/dev/sda1"
395 Say Y here if you want to be able to pass default arguments to
396 the kernel. This will be overridden by the bootloader, if you
397 use one (such as SILO). This is most useful if you want to boot
398 a kernel from TFTP, and want default options to be available
399 with having them passed on the command line.
401 NOTE: This option WILL override the PROM bootargs setting!
407 Enable power management and CPU standby features on supported
411 tristate "Sun4m LED driver"
414 This driver toggles the front-panel LED on sun4m systems
415 in a user-specifiable manner. Its state can be probed
416 by reading /proc/led and its blinking mode can be changed
417 via writes to /proc/led
419 config SERIAL_CONSOLE
424 If you say Y here, it will be possible to use a serial port as the
425 system console (the system console is the device which receives all
426 kernel messages and warnings and which allows logins in single user
427 mode). This could be useful if some terminal or printer is connected
430 Even if you say Y here, the currently visible virtual console
431 (/dev/tty0) will still be used as the system console by default, but
432 you can alter that using a kernel command line option such as
433 "console=ttyS1". (Try "man bootparam" or see the documentation of
434 your boot loader (silo) about how to pass options to the kernel at
437 If you don't have a graphics card installed and you say Y here, the
438 kernel will automatically use the first serial line, /dev/ttyS0, as
444 bool "Sparc Leon processor family"
447 If you say Y here if you are running on a SPARC-LEON processor.
448 The LEON processor is a synthesizable VHDL model of the
449 SPARC-v8 standard. LEON is part of the GRLIB collection of
450 IP cores that are distributed under GPL. GRLIB can be downloaded
451 from www.gaisler.com. You can download a sparc-linux cross-compilation
452 toolchain at www.gaisler.com.
455 menu "U-Boot options"
457 config UBOOT_LOAD_ADDR
458 hex "uImage Load Address"
461 U-Boot kernel load address, the address in physical address space
462 where u-boot will place the Linux kernel before booting it.
463 This address is normally the base address of main memory + 0x4000.
465 config UBOOT_FLASH_ADDR
466 hex "uImage.o Load Address"
469 Optional setting only affecting the uImage.o ELF-image used to
470 download the uImage file to the target using a ELF-loader other than
471 U-Boot. It may for example be used to download an uImage to FLASH with
472 the GRMON utility before even starting u-boot.
474 config UBOOT_ENTRY_ADDR
475 hex "uImage Entry Address"
478 Do not change this unless you know what you're doing. This is
479 hardcoded by the SPARC32 and LEON port.
481 This is the virtual address u-boot jumps to when booting the Linux
489 menu "Bus options (PCI etc.)"
499 bool "Sun Logical Domains support"
502 Say Y here is you want to support virtual devices via
506 bool "Support for PCI and PS/2 keyboard/mouse"
508 Find out whether your system includes a PCI bus. PCI is the name of
509 a bus system, i.e. the way the CPU talks to the other stuff inside
510 your box. If you say Y here, the kernel will include drivers and
511 infrastructure code to support PCI bus devices.
513 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
514 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
515 All of these platforms are extremely obscure, so say N if unsure.
518 def_bool PCI if SPARC64
525 depends on PCI && SPARC32 && !SPARC_LEON
530 depends on PCI && SPARC_LEON
534 bool "GRPCI2 Host Bridge Support"
538 Say Y here to include the GRPCI2 Host Bridge Driver.
540 source "drivers/pci/Kconfig"
542 source "drivers/pcmcia/Kconfig"
544 config SUN_OPENPROMFS
545 tristate "Openprom tree appears in /proc/openprom"
547 If you say Y, the OpenPROM device tree will be available as a
548 virtual file system, which you can mount to /proc/openprom by "mount
549 -t openpromfs none /proc/openprom".
551 To compile the /proc/openprom support as a module, choose M here: the
552 module will be called openpromfs.
554 Only choose N if you know in advance that you will not need to modify
555 OpenPROM settings on the running system.
561 depends on SPARC64 && PCI
565 menu "Executable file formats"
567 source "fs/Kconfig.binfmt"
573 select COMPAT_BINFMT_ELF
574 select ARCH_WANT_OLD_COMPAT_IPC
576 config SYSVIPC_COMPAT
578 depends on COMPAT && SYSVIPC
582 def_bool y if COMPAT && KEYS
588 source "drivers/Kconfig"
590 source "drivers/sbus/char/Kconfig"
594 source "arch/sparc/Kconfig.debug"
596 source "security/Kconfig"
598 source "crypto/Kconfig"