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
34 select HAVE_CBPF_JIT if SPARC32
35 select HAVE_EBPF_JIT if SPARC64
36 select HAVE_DEBUG_BUGVERBOSE
37 select GENERIC_SMP_IDLE_THREAD
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_STRNCPY_FROM_USER
40 select GENERIC_STRNLEN_USER
41 select MODULES_USE_ELF_RELA
42 select ODD_RT_SIGACTION
44 select ARCH_HAS_SG_CHAIN
45 select CPU_NO_EFFICIENT_FFS
46 select LOCKDEP_SMALL if LOCKDEP
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
85 select HAVE_REGS_AND_STACK_ACCESS_API
86 select ARCH_USE_QUEUED_RWLOCKS
87 select ARCH_USE_QUEUED_SPINLOCKS
91 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
92 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
94 config ARCH_PROC_KCORE_TEXT
104 config ARCH_DMA_ADDR_T_64BIT
106 default y if ARCH_ATU
112 config STACKTRACE_SUPPORT
116 config LOCKDEP_SUPPORT
120 config ARCH_HIBERNATION_POSSIBLE
121 def_bool y if SPARC64
127 config HAVE_SETUP_PER_CPU_AREA
128 def_bool y if SPARC64
130 config NEED_PER_CPU_EMBED_FIRST_CHUNK
131 def_bool y if SPARC64
133 config NEED_PER_CPU_PAGE_FIRST_CHUNK
134 def_bool y if SPARC64
148 config NEED_DMA_MAP_STATE
151 config NEED_SG_DMA_LENGTH
154 config GENERIC_ISA_DMA
158 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
159 def_bool y if SPARC64
161 config PGTABLE_LEVELS
165 config ARCH_SUPPORTS_UPROBES
166 def_bool y if SPARC64
168 source "init/Kconfig"
170 source "kernel/Kconfig.freezer"
172 menu "Processor type and features"
175 bool "Symmetric multi-processing support"
177 This enables support for systems with more than one CPU. If you have
178 a system with only one CPU, say N. If you have a system with more
181 If you say N here, the kernel will run on uni- and multiprocessor
182 machines, but will use only one CPU of a multiprocessor machine. If
183 you say Y here, the kernel will run on many, but not all,
184 uniprocessor machines. On a uniprocessor machine, the kernel
185 will run faster if you say N here.
187 People using multiprocessor machines who say Y here should also say
188 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
189 Management" code will be disabled if you say Y here.
191 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
192 available at <http://www.tldp.org/docs.html#howto>.
194 If you don't know what to do here, say N.
197 int "Maximum number of CPUs"
199 range 2 32 if SPARC32
200 range 2 4096 if SPARC64
201 default 32 if SPARC32
202 default 4096 if SPARC64
204 source kernel/Kconfig.hz
206 config RWSEM_GENERIC_SPINLOCK
210 config RWSEM_XCHGADD_ALGORITHM
214 config GENERIC_HWEIGHT
218 config GENERIC_CALIBRATE_DELAY
222 config ARCH_MAY_HAVE_PC_FDC
226 config EMULATED_CMPXCHG
230 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
231 is emulated, and therefore it is not completely atomic.
237 depends on SPARC32 && SMP
242 depends on SPARC64 && SMP
245 bool "Support for early boot text console"
249 Say Y here to enable a faster early framebuffer boot console.
252 bool "Enable seccomp to safely compute untrusted bytecode"
253 depends on SPARC64 && PROC_FS
256 This kernel feature is useful for number crunching applications
257 that may need to compute untrusted bytecode during their
258 execution. By using pipes or other transports made available to
259 the process as file descriptors supporting the read/write
260 syscalls, it's possible to isolate those applications in
261 their own address space using seccomp. Once seccomp is
262 enabled via /proc/<pid>/seccomp, it cannot be disabled
263 and the task is only allowed to execute a few safe syscalls
264 defined by each seccomp mode.
266 If unsure, say Y. Only embedded should say N here.
269 bool "Support for hot-pluggable CPUs"
270 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"
281 tristate "UltraSPARC-III Memory Controller driver"
285 This adds a driver for the UltraSPARC-III memory controller.
286 Loading this driver allows exact mnemonic strings to be
287 printed in the event of a memory error, so that the faulty DIMM
288 on the motherboard can be matched to the error.
290 If in doubt, say Y, as this information can be very useful.
292 # Global things across all Sun machines.
293 config GENERIC_LOCKBREAK
296 depends on SPARC64 && SMP && PREEMPT
300 depends on SPARC64 && SMP
303 int "Maximum NUMA Nodes (as a power of 2)"
306 depends on NEED_MULTIPLE_NODES
308 Specify the maximum number of NUMA Nodes available on the target
309 system. Increases memory reserved to accommodate various tables.
311 # Some NUMA nodes have memory ranges that span
312 # other nodes. Even though a pfn is valid and
313 # between a node's start and end pfns, it may not
314 # reside on that node. See memmap_init_zone()
316 config NODES_SPAN_OTHER_NODES
318 depends on NEED_MULTIPLE_NODES
320 config ARCH_SELECT_MEMORY_MODEL
321 def_bool y if SPARC64
323 config ARCH_SPARSEMEM_ENABLE
324 def_bool y if SPARC64
325 select SPARSEMEM_VMEMMAP_ENABLE
327 config ARCH_SPARSEMEM_DEFAULT
328 def_bool y if SPARC64
330 config FORCE_MAX_ZONEORDER
331 int "Maximum zone order"
334 The kernel memory allocator divides physically contiguous memory
335 blocks into "zones", where each zone is a power of two number of
336 pages. This option selects the largest power of two that the kernel
337 keeps in the memory allocator. If you need to allocate very large
338 blocks of physically contiguous memory, then you may need to
341 This config option is actually maximum order plus one. For example,
342 a value of 13 means that the largest free memory block is 2^12 pages.
347 source "kernel/power/Kconfig"
351 bool "SMT (Hyperthreading) scheduler support"
352 depends on SPARC64 && SMP
355 SMT scheduler support improves the CPU scheduler's decision making
356 when dealing with SPARC cpus at a cost of slightly increased overhead
357 in some places. If unsure say N here.
360 bool "Multi-core scheduler support"
361 depends on SPARC64 && SMP
364 Multi-core scheduler support improves the CPU scheduler's decision
365 making when dealing with multi-core CPU chips at a cost of slightly
366 increased overhead in some places. If unsure say N here.
368 source "kernel/Kconfig.preempt"
371 bool "Default bootloader kernel arguments"
375 string "Initial kernel command string"
376 depends on CMDLINE_BOOL
377 default "console=ttyS0,9600 root=/dev/sda1"
379 Say Y here if you want to be able to pass default arguments to
380 the kernel. This will be overridden by the bootloader, if you
381 use one (such as SILO). This is most useful if you want to boot
382 a kernel from TFTP, and want default options to be available
383 with having them passed on the command line.
385 NOTE: This option WILL override the PROM bootargs setting!
391 Enable power management and CPU standby features on supported
395 tristate "Sun4m LED driver"
398 This driver toggles the front-panel LED on sun4m systems
399 in a user-specifiable manner. Its state can be probed
400 by reading /proc/led and its blinking mode can be changed
401 via writes to /proc/led
403 config SERIAL_CONSOLE
408 If you say Y here, it will be possible to use a serial port as the
409 system console (the system console is the device which receives all
410 kernel messages and warnings and which allows logins in single user
411 mode). This could be useful if some terminal or printer is connected
414 Even if you say Y here, the currently visible virtual console
415 (/dev/tty0) will still be used as the system console by default, but
416 you can alter that using a kernel command line option such as
417 "console=ttyS1". (Try "man bootparam" or see the documentation of
418 your boot loader (silo) about how to pass options to the kernel at
421 If you don't have a graphics card installed and you say Y here, the
422 kernel will automatically use the first serial line, /dev/ttyS0, as
428 bool "Sparc Leon processor family"
430 select USB_EHCI_BIG_ENDIAN_MMIO
431 select USB_EHCI_BIG_ENDIAN_DESC
433 If you say Y here if you are running on a SPARC-LEON processor.
434 The LEON processor is a synthesizable VHDL model of the
435 SPARC-v8 standard. LEON is part of the GRLIB collection of
436 IP cores that are distributed under GPL. GRLIB can be downloaded
437 from www.gaisler.com. You can download a sparc-linux cross-compilation
438 toolchain at www.gaisler.com.
441 menu "U-Boot options"
443 config UBOOT_LOAD_ADDR
444 hex "uImage Load Address"
447 U-Boot kernel load address, the address in physical address space
448 where u-boot will place the Linux kernel before booting it.
449 This address is normally the base address of main memory + 0x4000.
451 config UBOOT_FLASH_ADDR
452 hex "uImage.o Load Address"
455 Optional setting only affecting the uImage.o ELF-image used to
456 download the uImage file to the target using a ELF-loader other than
457 U-Boot. It may for example be used to download an uImage to FLASH with
458 the GRMON utility before even starting u-boot.
460 config UBOOT_ENTRY_ADDR
461 hex "uImage Entry Address"
464 Do not change this unless you know what you're doing. This is
465 hardcoded by the SPARC32 and LEON port.
467 This is the virtual address u-boot jumps to when booting the Linux
475 menu "Bus options (PCI etc.)"
485 bool "Sun Logical Domains support"
488 Say Y here is you want to support virtual devices via
492 bool "Support for PCI and PS/2 keyboard/mouse"
494 Find out whether your system includes a PCI bus. PCI is the name of
495 a bus system, i.e. the way the CPU talks to the other stuff inside
496 your box. If you say Y here, the kernel will include drivers and
497 infrastructure code to support PCI bus devices.
499 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
500 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
501 All of these platforms are extremely obscure, so say N if unsure.
504 def_bool PCI if SPARC64
511 depends on PCI && SPARC32 && !SPARC_LEON
516 depends on PCI && SPARC_LEON
520 bool "GRPCI Host Bridge Support"
524 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
525 PCI host controller is typically found in GRLIB SPARC32/LEON
526 systems. The driver has one property (all_pci_errors) controlled
527 from the bootloader that makes the GRPCI to generate interrupts
528 on detected PCI Parity and System errors.
531 bool "GRPCI2 Host Bridge Support"
535 Say Y here to include the GRPCI2 Host Bridge Driver.
537 source "drivers/pci/Kconfig"
539 source "drivers/pcmcia/Kconfig"
541 config SUN_OPENPROMFS
542 tristate "Openprom tree appears in /proc/openprom"
544 If you say Y, the OpenPROM device tree will be available as a
545 virtual file system, which you can mount to /proc/openprom by "mount
546 -t openpromfs none /proc/openprom".
548 To compile the /proc/openprom support as a module, choose M here: the
549 module will be called openpromfs.
551 Only choose N if you know in advance that you will not need to modify
552 OpenPROM settings on the running system.
558 depends on SPARC64 && PCI
560 config SPARC64_PCI_MSI
563 depends on SPARC64_PCI && PCI_MSI
567 menu "Executable file formats"
569 source "fs/Kconfig.binfmt"
575 select COMPAT_BINFMT_ELF
577 select ARCH_WANT_OLD_COMPAT_IPC
578 select COMPAT_OLD_SIGACTION
580 config SYSVIPC_COMPAT
582 depends on COMPAT && SYSVIPC
589 source "drivers/Kconfig"
591 source "drivers/sbus/char/Kconfig"
595 source "arch/sparc/Kconfig.debug"
597 source "security/Kconfig"
599 source "crypto/Kconfig"