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
49 select ARCH_SUPPORTS_MSI
50 select HAVE_FUNCTION_TRACER
51 select HAVE_FUNCTION_GRAPH_TRACER
52 select HAVE_FUNCTION_GRAPH_FP_TEST
53 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
54 select HAVE_KRETPROBES
56 select HAVE_RCU_TABLE_FREE if SMP
58 select HAVE_MEMBLOCK_NODE_MAP
59 select HAVE_SYSCALL_WRAPPERS
60 select HAVE_DYNAMIC_FTRACE
61 select HAVE_FTRACE_MCOUNT_RECORD
62 select HAVE_SYSCALL_TRACEPOINTS
63 select HAVE_DEBUG_KMEMLEAK
67 select RTC_DRV_STARFIRE
68 select HAVE_PERF_EVENTS
69 select PERF_USE_VMALLOC
70 select IRQ_PREFLOW_FASTEOI
71 select ARCH_HAVE_NMI_SAFE_CMPXCHG
72 select HAVE_C_RECORDMCOUNT
77 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
78 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
80 # CONFIG_BITS can be used at source level to get 32/64 bits
90 config STACKTRACE_SUPPORT
94 config LOCKDEP_SUPPORT
98 config HAVE_LATENCYTOP_SUPPORT
106 config HAVE_SETUP_PER_CPU_AREA
107 def_bool y if SPARC64
109 config NEED_PER_CPU_EMBED_FIRST_CHUNK
110 def_bool y if SPARC64
112 config NEED_PER_CPU_PAGE_FIRST_CHUNK
113 def_bool y if SPARC64
127 config NEED_DMA_MAP_STATE
130 config NEED_SG_DMA_LENGTH
133 config GENERIC_ISA_DMA
140 Generic GPIO API support
142 config ARCH_NO_VIRT_TO_BUS
145 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
146 def_bool y if SPARC64
148 source "init/Kconfig"
150 source "kernel/Kconfig.freezer"
152 menu "Processor type and features"
155 bool "Symmetric multi-processing support"
157 This enables support for systems with more than one CPU. If you have
158 a system with only one CPU, say N. If you have a system with more
161 If you say N here, the kernel will run on single and multiprocessor
162 machines, but will use only one CPU of a multiprocessor machine. If
163 you say Y here, the kernel will run on many, but not all,
164 singleprocessor machines. On a singleprocessor machine, the kernel
165 will run faster if you say N here.
167 People using multiprocessor machines who say Y here should also say
168 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
169 Management" code will be disabled if you say Y here.
171 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
172 available at <http://www.tldp.org/docs.html#howto>.
174 If you don't know what to do here, say N.
177 int "Maximum number of CPUs"
179 range 2 32 if SPARC32
180 range 2 1024 if SPARC64
181 default 32 if SPARC32
182 default 64 if SPARC64
184 source kernel/Kconfig.hz
186 config RWSEM_GENERIC_SPINLOCK
190 config RWSEM_XCHGADD_ALGORITHM
194 config GENERIC_HWEIGHT
196 default y if !ULTRA_HAS_POPULATION_COUNT
198 config GENERIC_CALIBRATE_DELAY
202 config ARCH_MAY_HAVE_PC_FDC
206 config EMULATED_CMPXCHG
210 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
211 is emulated, and therefore it is not completely atomic.
217 depends on SPARC32 && SMP
222 depends on SPARC64 && SMP
225 bool "Support for early boot text console"
229 Say Y here to enable a faster early framebuffer boot console.
232 prompt "Kernel page size" if SPARC64
233 default SPARC64_PAGE_SIZE_8KB
235 config SPARC64_PAGE_SIZE_8KB
238 This lets you select the page size of the kernel.
240 8KB and 64KB work quite well, since SPARC ELF sections
241 provide for up to 64KB alignment.
243 If you don't know what to do, choose 8KB.
245 config SPARC64_PAGE_SIZE_64KB
251 bool "Enable seccomp to safely compute untrusted bytecode"
252 depends on SPARC64 && PROC_FS
255 This kernel feature is useful for number crunching applications
256 that may need to compute untrusted bytecode during their
257 execution. By using pipes or other transports made available to
258 the process as file descriptors supporting the read/write
259 syscalls, it's possible to isolate those applications in
260 their own address space using seccomp. Once seccomp is
261 enabled via /proc/<pid>/seccomp, it cannot be disabled
262 and the task is only allowed to execute a few safe syscalls
263 defined by each seccomp mode.
265 If unsure, say Y. Only embedded should say N here.
268 bool "Support for hot-pluggable CPUs"
269 depends on SPARC64 && SMP
272 Say Y here to experiment with turning CPUs off and on. CPUs
273 can be controlled through /sys/devices/system/cpu/cpu#.
274 Say N if you want to disable CPU hotplug.
277 source "drivers/cpufreq/Kconfig"
280 tristate "UltraSPARC-III CPU Frequency driver"
282 select CPU_FREQ_TABLE
284 This adds the CPUFreq driver for UltraSPARC-III processors.
286 For details, take a look at <file:Documentation/cpu-freq>.
291 tristate "UltraSPARC-IIe CPU Frequency driver"
293 select CPU_FREQ_TABLE
295 This adds the CPUFreq driver for UltraSPARC-IIe processors.
297 For details, take a look at <file:Documentation/cpu-freq>.
304 tristate "UltraSPARC-III Memory Controller driver"
308 This adds a driver for the UltraSPARC-III memory controller.
309 Loading this driver allows exact mnemonic strings to be
310 printed in the event of a memory error, so that the faulty DIMM
311 on the motherboard can be matched to the error.
313 If in doubt, say Y, as this information can be very useful.
315 # Global things across all Sun machines.
316 config GENERIC_LOCKBREAK
319 depends on SPARC64 && SMP && PREEMPT
322 prompt "SPARC64 Huge TLB Page Size"
323 depends on SPARC64 && HUGETLB_PAGE
324 default HUGETLB_PAGE_SIZE_4MB
326 config HUGETLB_PAGE_SIZE_4MB
329 config HUGETLB_PAGE_SIZE_512K
332 config HUGETLB_PAGE_SIZE_64K
333 depends on !SPARC64_PAGE_SIZE_64KB
340 depends on SPARC64 && SMP
345 depends on NEED_MULTIPLE_NODES
347 # Some NUMA nodes have memory ranges that span
348 # other nodes. Even though a pfn is valid and
349 # between a node's start and end pfns, it may not
350 # reside on that node. See memmap_init_zone()
352 config NODES_SPAN_OTHER_NODES
354 depends on NEED_MULTIPLE_NODES
356 config ARCH_SELECT_MEMORY_MODEL
357 def_bool y if SPARC64
359 config ARCH_SPARSEMEM_ENABLE
360 def_bool y if SPARC64
361 select SPARSEMEM_VMEMMAP_ENABLE
363 config ARCH_SPARSEMEM_DEFAULT
364 def_bool y if SPARC64
369 bool "SMT (Hyperthreading) scheduler support"
370 depends on SPARC64 && SMP
373 SMT scheduler support improves the CPU scheduler's decision making
374 when dealing with SPARC cpus at a cost of slightly increased overhead
375 in some places. If unsure say N here.
378 bool "Multi-core scheduler support"
379 depends on SPARC64 && SMP
382 Multi-core scheduler support improves the CPU scheduler's decision
383 making when dealing with multi-core CPU chips at a cost of slightly
384 increased overhead in some places. If unsure say N here.
386 source "kernel/Kconfig.preempt"
389 bool "Default bootloader kernel arguments"
393 string "Initial kernel command string"
394 depends on CMDLINE_BOOL
395 default "console=ttyS0,9600 root=/dev/sda1"
397 Say Y here if you want to be able to pass default arguments to
398 the kernel. This will be overridden by the bootloader, if you
399 use one (such as SILO). This is most useful if you want to boot
400 a kernel from TFTP, and want default options to be available
401 with having them passed on the command line.
403 NOTE: This option WILL override the PROM bootargs setting!
409 Enable power management and CPU standby features on supported
413 tristate "Sun4m LED driver"
416 This driver toggles the front-panel LED on sun4m systems
417 in a user-specifiable manner. Its state can be probed
418 by reading /proc/led and its blinking mode can be changed
419 via writes to /proc/led
421 config SERIAL_CONSOLE
426 If you say Y here, it will be possible to use a serial port as the
427 system console (the system console is the device which receives all
428 kernel messages and warnings and which allows logins in single user
429 mode). This could be useful if some terminal or printer is connected
432 Even if you say Y here, the currently visible virtual console
433 (/dev/tty0) will still be used as the system console by default, but
434 you can alter that using a kernel command line option such as
435 "console=ttyS1". (Try "man bootparam" or see the documentation of
436 your boot loader (silo) about how to pass options to the kernel at
439 If you don't have a graphics card installed and you say Y here, the
440 kernel will automatically use the first serial line, /dev/ttyS0, as
446 bool "Sparc Leon processor family"
449 If you say Y here if you are running on a SPARC-LEON processor.
450 The LEON processor is a synthesizable VHDL model of the
451 SPARC-v8 standard. LEON is part of the GRLIB collection of
452 IP cores that are distributed under GPL. GRLIB can be downloaded
453 from www.gaisler.com. You can download a sparc-linux cross-compilation
454 toolchain at www.gaisler.com.
457 menu "U-Boot options"
459 config UBOOT_LOAD_ADDR
460 hex "uImage Load Address"
463 U-Boot kernel load address, the address in physical address space
464 where u-boot will place the Linux kernel before booting it.
465 This address is normally the base address of main memory + 0x4000.
467 config UBOOT_FLASH_ADDR
468 hex "uImage.o Load Address"
471 Optional setting only affecting the uImage.o ELF-image used to
472 download the uImage file to the target using a ELF-loader other than
473 U-Boot. It may for example be used to download an uImage to FLASH with
474 the GRMON utility before even starting u-boot.
476 config UBOOT_ENTRY_ADDR
477 hex "uImage Entry Address"
480 Do not change this unless you know what you're doing. This is
481 hardcoded by the SPARC32 and LEON port.
483 This is the virtual address u-boot jumps to when booting the Linux
491 menu "Bus options (PCI etc.)"
501 bool "Sun Logical Domains support"
504 Say Y here is you want to support virtual devices via
508 bool "Support for PCI and PS/2 keyboard/mouse"
510 Find out whether your system includes a PCI bus. PCI is the name of
511 a bus system, i.e. the way the CPU talks to the other stuff inside
512 your box. If you say Y here, the kernel will include drivers and
513 infrastructure code to support PCI bus devices.
515 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
516 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
517 All of these platforms are extremely obscure, so say N if unsure.
520 def_bool PCI if SPARC64
527 depends on PCI && SPARC32 && !SPARC_LEON
532 depends on PCI && SPARC_LEON
536 bool "GRPCI2 Host Bridge Support"
540 Say Y here to include the GRPCI2 Host Bridge Driver.
542 source "drivers/pci/Kconfig"
544 source "drivers/pcmcia/Kconfig"
546 config SUN_OPENPROMFS
547 tristate "Openprom tree appears in /proc/openprom"
549 If you say Y, the OpenPROM device tree will be available as a
550 virtual file system, which you can mount to /proc/openprom by "mount
551 -t openpromfs none /proc/openprom".
553 To compile the /proc/openprom support as a module, choose M here: the
554 module will be called openpromfs.
556 Only choose N if you know in advance that you will not need to modify
557 OpenPROM settings on the running system.
563 depends on SPARC64 && PCI
567 menu "Executable file formats"
569 source "fs/Kconfig.binfmt"
575 select COMPAT_BINFMT_ELF
577 select ARCH_WANT_OLD_COMPAT_IPC
579 config SYSVIPC_COMPAT
581 depends on COMPAT && SYSVIPC
585 def_bool y if COMPAT && KEYS
591 source "drivers/Kconfig"
593 source "drivers/sbus/char/Kconfig"
597 source "arch/sparc/Kconfig.debug"
599 source "security/Kconfig"
601 source "crypto/Kconfig"