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
46 select PROVE_LOCKING_SMALL if PROVE_LOCKING
47 select ARCH_WANT_RELAX_ORDER
51 select GENERIC_ATOMIC64
58 select HAVE_FUNCTION_TRACER
59 select HAVE_FUNCTION_GRAPH_TRACER
60 select HAVE_KRETPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
64 select HAVE_MEMBLOCK_NODE_MAP
65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_MCOUNT_RECORD
68 select HAVE_SYSCALL_TRACEPOINTS
69 select HAVE_CONTEXT_TRACKING
70 select HAVE_DEBUG_KMEMLEAK
75 select RTC_DRV_STARFIRE
76 select HAVE_PERF_EVENTS
77 select PERF_USE_VMALLOC
78 select IRQ_PREFLOW_FASTEOI
79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
80 select HAVE_C_RECORDMCOUNT
82 select HAVE_ARCH_AUDITSYSCALL
83 select ARCH_SUPPORTS_ATOMIC_RMW
88 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
89 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
91 config ARCH_PROC_KCORE_TEXT
98 config ARCH_DMA_ADDR_T_64BIT
100 default y if ARCH_ATU
106 config STACKTRACE_SUPPORT
110 config LOCKDEP_SUPPORT
114 config ARCH_HIBERNATION_POSSIBLE
115 def_bool y if SPARC64
121 config HAVE_SETUP_PER_CPU_AREA
122 def_bool y if SPARC64
124 config NEED_PER_CPU_EMBED_FIRST_CHUNK
125 def_bool y if SPARC64
127 config NEED_PER_CPU_PAGE_FIRST_CHUNK
128 def_bool y if SPARC64
142 config NEED_DMA_MAP_STATE
145 config NEED_SG_DMA_LENGTH
148 config GENERIC_ISA_DMA
152 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
153 def_bool y if SPARC64
155 config PGTABLE_LEVELS
159 config ARCH_SUPPORTS_UPROBES
160 def_bool y if SPARC64
162 source "init/Kconfig"
164 source "kernel/Kconfig.freezer"
166 menu "Processor type and features"
169 bool "Symmetric multi-processing support"
171 This enables support for systems with more than one CPU. If you have
172 a system with only one CPU, say N. If you have a system with more
175 If you say N here, the kernel will run on uni- and multiprocessor
176 machines, but will use only one CPU of a multiprocessor machine. If
177 you say Y here, the kernel will run on many, but not all,
178 uniprocessor machines. On a uniprocessor machine, the kernel
179 will run faster if you say N here.
181 People using multiprocessor machines who say Y here should also say
182 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
183 Management" code will be disabled if you say Y here.
185 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
186 available at <http://www.tldp.org/docs.html#howto>.
188 If you don't know what to do here, say N.
191 int "Maximum number of CPUs"
193 range 2 32 if SPARC32
194 range 2 1024 if SPARC64
195 default 32 if SPARC32
196 default 64 if SPARC64
198 source kernel/Kconfig.hz
200 config RWSEM_GENERIC_SPINLOCK
204 config RWSEM_XCHGADD_ALGORITHM
208 config GENERIC_HWEIGHT
212 config GENERIC_CALIBRATE_DELAY
216 config ARCH_MAY_HAVE_PC_FDC
220 config EMULATED_CMPXCHG
224 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
225 is emulated, and therefore it is not completely atomic.
231 depends on SPARC32 && SMP
236 depends on SPARC64 && SMP
239 bool "Support for early boot text console"
243 Say Y here to enable a faster early framebuffer boot console.
246 bool "Enable seccomp to safely compute untrusted bytecode"
247 depends on SPARC64 && PROC_FS
250 This kernel feature is useful for number crunching applications
251 that may need to compute untrusted bytecode during their
252 execution. By using pipes or other transports made available to
253 the process as file descriptors supporting the read/write
254 syscalls, it's possible to isolate those applications in
255 their own address space using seccomp. Once seccomp is
256 enabled via /proc/<pid>/seccomp, it cannot be disabled
257 and the task is only allowed to execute a few safe syscalls
258 defined by each seccomp mode.
260 If unsure, say Y. Only embedded should say N here.
263 bool "Support for hot-pluggable CPUs"
264 depends on SPARC64 && SMP
266 Say Y here to experiment with turning CPUs off and on. CPUs
267 can be controlled through /sys/devices/system/cpu/cpu#.
268 Say N if you want to disable CPU hotplug.
271 source "drivers/cpufreq/Kconfig"
275 tristate "UltraSPARC-III Memory Controller driver"
279 This adds a driver for the UltraSPARC-III memory controller.
280 Loading this driver allows exact mnemonic strings to be
281 printed in the event of a memory error, so that the faulty DIMM
282 on the motherboard can be matched to the error.
284 If in doubt, say Y, as this information can be very useful.
286 # Global things across all Sun machines.
287 config GENERIC_LOCKBREAK
290 depends on SPARC64 && SMP && PREEMPT
294 depends on SPARC64 && SMP
299 depends on NEED_MULTIPLE_NODES
301 # Some NUMA nodes have memory ranges that span
302 # other nodes. Even though a pfn is valid and
303 # between a node's start and end pfns, it may not
304 # reside on that node. See memmap_init_zone()
306 config NODES_SPAN_OTHER_NODES
308 depends on NEED_MULTIPLE_NODES
310 config ARCH_SELECT_MEMORY_MODEL
311 def_bool y if SPARC64
313 config ARCH_SPARSEMEM_ENABLE
314 def_bool y if SPARC64
315 select SPARSEMEM_VMEMMAP_ENABLE
317 config ARCH_SPARSEMEM_DEFAULT
318 def_bool y if SPARC64
320 config FORCE_MAX_ZONEORDER
321 int "Maximum zone order"
324 The kernel memory allocator divides physically contiguous memory
325 blocks into "zones", where each zone is a power of two number of
326 pages. This option selects the largest power of two that the kernel
327 keeps in the memory allocator. If you need to allocate very large
328 blocks of physically contiguous memory, then you may need to
331 This config option is actually maximum order plus one. For example,
332 a value of 13 means that the largest free memory block is 2^12 pages.
337 source "kernel/power/Kconfig"
341 bool "SMT (Hyperthreading) scheduler support"
342 depends on SPARC64 && SMP
345 SMT scheduler support improves the CPU scheduler's decision making
346 when dealing with SPARC cpus at a cost of slightly increased overhead
347 in some places. If unsure say N here.
350 bool "Multi-core scheduler support"
351 depends on SPARC64 && SMP
354 Multi-core scheduler support improves the CPU scheduler's decision
355 making when dealing with multi-core CPU chips at a cost of slightly
356 increased overhead in some places. If unsure say N here.
358 source "kernel/Kconfig.preempt"
361 bool "Default bootloader kernel arguments"
365 string "Initial kernel command string"
366 depends on CMDLINE_BOOL
367 default "console=ttyS0,9600 root=/dev/sda1"
369 Say Y here if you want to be able to pass default arguments to
370 the kernel. This will be overridden by the bootloader, if you
371 use one (such as SILO). This is most useful if you want to boot
372 a kernel from TFTP, and want default options to be available
373 with having them passed on the command line.
375 NOTE: This option WILL override the PROM bootargs setting!
381 Enable power management and CPU standby features on supported
385 tristate "Sun4m LED driver"
388 This driver toggles the front-panel LED on sun4m systems
389 in a user-specifiable manner. Its state can be probed
390 by reading /proc/led and its blinking mode can be changed
391 via writes to /proc/led
393 config SERIAL_CONSOLE
398 If you say Y here, it will be possible to use a serial port as the
399 system console (the system console is the device which receives all
400 kernel messages and warnings and which allows logins in single user
401 mode). This could be useful if some terminal or printer is connected
404 Even if you say Y here, the currently visible virtual console
405 (/dev/tty0) will still be used as the system console by default, but
406 you can alter that using a kernel command line option such as
407 "console=ttyS1". (Try "man bootparam" or see the documentation of
408 your boot loader (silo) about how to pass options to the kernel at
411 If you don't have a graphics card installed and you say Y here, the
412 kernel will automatically use the first serial line, /dev/ttyS0, as
418 bool "Sparc Leon processor family"
420 select USB_EHCI_BIG_ENDIAN_MMIO
421 select USB_EHCI_BIG_ENDIAN_DESC
423 If you say Y here if you are running on a SPARC-LEON processor.
424 The LEON processor is a synthesizable VHDL model of the
425 SPARC-v8 standard. LEON is part of the GRLIB collection of
426 IP cores that are distributed under GPL. GRLIB can be downloaded
427 from www.gaisler.com. You can download a sparc-linux cross-compilation
428 toolchain at www.gaisler.com.
431 menu "U-Boot options"
433 config UBOOT_LOAD_ADDR
434 hex "uImage Load Address"
437 U-Boot kernel load address, the address in physical address space
438 where u-boot will place the Linux kernel before booting it.
439 This address is normally the base address of main memory + 0x4000.
441 config UBOOT_FLASH_ADDR
442 hex "uImage.o Load Address"
445 Optional setting only affecting the uImage.o ELF-image used to
446 download the uImage file to the target using a ELF-loader other than
447 U-Boot. It may for example be used to download an uImage to FLASH with
448 the GRMON utility before even starting u-boot.
450 config UBOOT_ENTRY_ADDR
451 hex "uImage Entry Address"
454 Do not change this unless you know what you're doing. This is
455 hardcoded by the SPARC32 and LEON port.
457 This is the virtual address u-boot jumps to when booting the Linux
465 menu "Bus options (PCI etc.)"
475 bool "Sun Logical Domains support"
478 Say Y here is you want to support virtual devices via
482 bool "Support for PCI and PS/2 keyboard/mouse"
484 Find out whether your system includes a PCI bus. PCI is the name of
485 a bus system, i.e. the way the CPU talks to the other stuff inside
486 your box. If you say Y here, the kernel will include drivers and
487 infrastructure code to support PCI bus devices.
489 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
490 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
491 All of these platforms are extremely obscure, so say N if unsure.
494 def_bool PCI if SPARC64
501 depends on PCI && SPARC32 && !SPARC_LEON
506 depends on PCI && SPARC_LEON
510 bool "GRPCI Host Bridge Support"
514 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
515 PCI host controller is typically found in GRLIB SPARC32/LEON
516 systems. The driver has one property (all_pci_errors) controlled
517 from the bootloader that makes the GRPCI to generate interrupts
518 on detected PCI Parity and System errors.
521 bool "GRPCI2 Host Bridge Support"
525 Say Y here to include the GRPCI2 Host Bridge Driver.
527 source "drivers/pci/Kconfig"
529 source "drivers/pcmcia/Kconfig"
531 config SUN_OPENPROMFS
532 tristate "Openprom tree appears in /proc/openprom"
534 If you say Y, the OpenPROM device tree will be available as a
535 virtual file system, which you can mount to /proc/openprom by "mount
536 -t openpromfs none /proc/openprom".
538 To compile the /proc/openprom support as a module, choose M here: the
539 module will be called openpromfs.
541 Only choose N if you know in advance that you will not need to modify
542 OpenPROM settings on the running system.
548 depends on SPARC64 && PCI
550 config SPARC64_PCI_MSI
553 depends on SPARC64_PCI && PCI_MSI
557 menu "Executable file formats"
559 source "fs/Kconfig.binfmt"
565 select COMPAT_BINFMT_ELF
567 select ARCH_WANT_OLD_COMPAT_IPC
568 select COMPAT_OLD_SIGACTION
570 config SYSVIPC_COMPAT
572 depends on COMPAT && SYSVIPC
576 def_bool y if COMPAT && KEYS
582 source "drivers/Kconfig"
584 source "drivers/sbus/char/Kconfig"
588 source "arch/sparc/Kconfig.debug"
590 source "security/Kconfig"
592 source "crypto/Kconfig"