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
89 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
90 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
92 config ARCH_PROC_KCORE_TEXT
99 config ARCH_DMA_ADDR_T_64BIT
101 default y if ARCH_ATU
107 config STACKTRACE_SUPPORT
111 config LOCKDEP_SUPPORT
115 config ARCH_HIBERNATION_POSSIBLE
116 def_bool y if SPARC64
122 config HAVE_SETUP_PER_CPU_AREA
123 def_bool y if SPARC64
125 config NEED_PER_CPU_EMBED_FIRST_CHUNK
126 def_bool y if SPARC64
128 config NEED_PER_CPU_PAGE_FIRST_CHUNK
129 def_bool y if SPARC64
143 config NEED_DMA_MAP_STATE
146 config NEED_SG_DMA_LENGTH
149 config GENERIC_ISA_DMA
153 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
154 def_bool y if SPARC64
156 config PGTABLE_LEVELS
160 config ARCH_SUPPORTS_UPROBES
161 def_bool y if SPARC64
163 source "init/Kconfig"
165 source "kernel/Kconfig.freezer"
167 menu "Processor type and features"
170 bool "Symmetric multi-processing support"
172 This enables support for systems with more than one CPU. If you have
173 a system with only one CPU, say N. If you have a system with more
176 If you say N here, the kernel will run on uni- and multiprocessor
177 machines, but will use only one CPU of a multiprocessor machine. If
178 you say Y here, the kernel will run on many, but not all,
179 uniprocessor machines. On a uniprocessor machine, the kernel
180 will run faster if you say N here.
182 People using multiprocessor machines who say Y here should also say
183 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
184 Management" code will be disabled if you say Y here.
186 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
187 available at <http://www.tldp.org/docs.html#howto>.
189 If you don't know what to do here, say N.
192 int "Maximum number of CPUs"
194 range 2 32 if SPARC32
195 range 2 4096 if SPARC64
196 default 32 if SPARC32
197 default 4096 if SPARC64
199 source kernel/Kconfig.hz
201 config RWSEM_GENERIC_SPINLOCK
205 config RWSEM_XCHGADD_ALGORITHM
209 config GENERIC_HWEIGHT
213 config GENERIC_CALIBRATE_DELAY
217 config ARCH_MAY_HAVE_PC_FDC
221 config EMULATED_CMPXCHG
225 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
226 is emulated, and therefore it is not completely atomic.
232 depends on SPARC32 && SMP
237 depends on SPARC64 && SMP
240 bool "Support for early boot text console"
244 Say Y here to enable a faster early framebuffer boot console.
247 bool "Enable seccomp to safely compute untrusted bytecode"
248 depends on SPARC64 && PROC_FS
251 This kernel feature is useful for number crunching applications
252 that may need to compute untrusted bytecode during their
253 execution. By using pipes or other transports made available to
254 the process as file descriptors supporting the read/write
255 syscalls, it's possible to isolate those applications in
256 their own address space using seccomp. Once seccomp is
257 enabled via /proc/<pid>/seccomp, it cannot be disabled
258 and the task is only allowed to execute a few safe syscalls
259 defined by each seccomp mode.
261 If unsure, say Y. Only embedded should say N here.
264 bool "Support for hot-pluggable CPUs"
265 depends on SPARC64 && SMP
267 Say Y here to experiment with turning CPUs off and on. CPUs
268 can be controlled through /sys/devices/system/cpu/cpu#.
269 Say N if you want to disable CPU hotplug.
272 source "drivers/cpufreq/Kconfig"
276 tristate "UltraSPARC-III Memory Controller driver"
280 This adds a driver for the UltraSPARC-III memory controller.
281 Loading this driver allows exact mnemonic strings to be
282 printed in the event of a memory error, so that the faulty DIMM
283 on the motherboard can be matched to the error.
285 If in doubt, say Y, as this information can be very useful.
287 # Global things across all Sun machines.
288 config GENERIC_LOCKBREAK
291 depends on SPARC64 && SMP && PREEMPT
295 depends on SPARC64 && SMP
298 int "Maximum NUMA Nodes (as a power of 2)"
301 depends on NEED_MULTIPLE_NODES
303 Specify the maximum number of NUMA Nodes available on the target
304 system. Increases memory reserved to accommodate various tables.
306 # Some NUMA nodes have memory ranges that span
307 # other nodes. Even though a pfn is valid and
308 # between a node's start and end pfns, it may not
309 # reside on that node. See memmap_init_zone()
311 config NODES_SPAN_OTHER_NODES
313 depends on NEED_MULTIPLE_NODES
315 config ARCH_SELECT_MEMORY_MODEL
316 def_bool y if SPARC64
318 config ARCH_SPARSEMEM_ENABLE
319 def_bool y if SPARC64
320 select SPARSEMEM_VMEMMAP_ENABLE
322 config ARCH_SPARSEMEM_DEFAULT
323 def_bool y if SPARC64
325 config FORCE_MAX_ZONEORDER
326 int "Maximum zone order"
329 The kernel memory allocator divides physically contiguous memory
330 blocks into "zones", where each zone is a power of two number of
331 pages. This option selects the largest power of two that the kernel
332 keeps in the memory allocator. If you need to allocate very large
333 blocks of physically contiguous memory, then you may need to
336 This config option is actually maximum order plus one. For example,
337 a value of 13 means that the largest free memory block is 2^12 pages.
342 source "kernel/power/Kconfig"
346 bool "SMT (Hyperthreading) scheduler support"
347 depends on SPARC64 && SMP
350 SMT scheduler support improves the CPU scheduler's decision making
351 when dealing with SPARC cpus at a cost of slightly increased overhead
352 in some places. If unsure say N here.
355 bool "Multi-core scheduler support"
356 depends on SPARC64 && SMP
359 Multi-core scheduler support improves the CPU scheduler's decision
360 making when dealing with multi-core CPU chips at a cost of slightly
361 increased overhead in some places. If unsure say N here.
363 source "kernel/Kconfig.preempt"
366 bool "Default bootloader kernel arguments"
370 string "Initial kernel command string"
371 depends on CMDLINE_BOOL
372 default "console=ttyS0,9600 root=/dev/sda1"
374 Say Y here if you want to be able to pass default arguments to
375 the kernel. This will be overridden by the bootloader, if you
376 use one (such as SILO). This is most useful if you want to boot
377 a kernel from TFTP, and want default options to be available
378 with having them passed on the command line.
380 NOTE: This option WILL override the PROM bootargs setting!
386 Enable power management and CPU standby features on supported
390 tristate "Sun4m LED driver"
393 This driver toggles the front-panel LED on sun4m systems
394 in a user-specifiable manner. Its state can be probed
395 by reading /proc/led and its blinking mode can be changed
396 via writes to /proc/led
398 config SERIAL_CONSOLE
403 If you say Y here, it will be possible to use a serial port as the
404 system console (the system console is the device which receives all
405 kernel messages and warnings and which allows logins in single user
406 mode). This could be useful if some terminal or printer is connected
409 Even if you say Y here, the currently visible virtual console
410 (/dev/tty0) will still be used as the system console by default, but
411 you can alter that using a kernel command line option such as
412 "console=ttyS1". (Try "man bootparam" or see the documentation of
413 your boot loader (silo) about how to pass options to the kernel at
416 If you don't have a graphics card installed and you say Y here, the
417 kernel will automatically use the first serial line, /dev/ttyS0, as
423 bool "Sparc Leon processor family"
425 select USB_EHCI_BIG_ENDIAN_MMIO
426 select USB_EHCI_BIG_ENDIAN_DESC
428 If you say Y here if you are running on a SPARC-LEON processor.
429 The LEON processor is a synthesizable VHDL model of the
430 SPARC-v8 standard. LEON is part of the GRLIB collection of
431 IP cores that are distributed under GPL. GRLIB can be downloaded
432 from www.gaisler.com. You can download a sparc-linux cross-compilation
433 toolchain at www.gaisler.com.
436 menu "U-Boot options"
438 config UBOOT_LOAD_ADDR
439 hex "uImage Load Address"
442 U-Boot kernel load address, the address in physical address space
443 where u-boot will place the Linux kernel before booting it.
444 This address is normally the base address of main memory + 0x4000.
446 config UBOOT_FLASH_ADDR
447 hex "uImage.o Load Address"
450 Optional setting only affecting the uImage.o ELF-image used to
451 download the uImage file to the target using a ELF-loader other than
452 U-Boot. It may for example be used to download an uImage to FLASH with
453 the GRMON utility before even starting u-boot.
455 config UBOOT_ENTRY_ADDR
456 hex "uImage Entry Address"
459 Do not change this unless you know what you're doing. This is
460 hardcoded by the SPARC32 and LEON port.
462 This is the virtual address u-boot jumps to when booting the Linux
470 menu "Bus options (PCI etc.)"
480 bool "Sun Logical Domains support"
483 Say Y here is you want to support virtual devices via
487 bool "Support for PCI and PS/2 keyboard/mouse"
489 Find out whether your system includes a PCI bus. PCI is the name of
490 a bus system, i.e. the way the CPU talks to the other stuff inside
491 your box. If you say Y here, the kernel will include drivers and
492 infrastructure code to support PCI bus devices.
494 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
495 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
496 All of these platforms are extremely obscure, so say N if unsure.
499 def_bool PCI if SPARC64
506 depends on PCI && SPARC32 && !SPARC_LEON
511 depends on PCI && SPARC_LEON
515 bool "GRPCI Host Bridge Support"
519 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
520 PCI host controller is typically found in GRLIB SPARC32/LEON
521 systems. The driver has one property (all_pci_errors) controlled
522 from the bootloader that makes the GRPCI to generate interrupts
523 on detected PCI Parity and System errors.
526 bool "GRPCI2 Host Bridge Support"
530 Say Y here to include the GRPCI2 Host Bridge Driver.
532 source "drivers/pci/Kconfig"
534 source "drivers/pcmcia/Kconfig"
536 config SUN_OPENPROMFS
537 tristate "Openprom tree appears in /proc/openprom"
539 If you say Y, the OpenPROM device tree will be available as a
540 virtual file system, which you can mount to /proc/openprom by "mount
541 -t openpromfs none /proc/openprom".
543 To compile the /proc/openprom support as a module, choose M here: the
544 module will be called openpromfs.
546 Only choose N if you know in advance that you will not need to modify
547 OpenPROM settings on the running system.
553 depends on SPARC64 && PCI
555 config SPARC64_PCI_MSI
558 depends on SPARC64_PCI && PCI_MSI
562 menu "Executable file formats"
564 source "fs/Kconfig.binfmt"
570 select COMPAT_BINFMT_ELF
572 select ARCH_WANT_OLD_COMPAT_IPC
573 select COMPAT_OLD_SIGACTION
575 config SYSVIPC_COMPAT
577 depends on COMPAT && SYSVIPC
584 source "drivers/Kconfig"
586 source "drivers/sbus/char/Kconfig"
590 source "arch/sparc/Kconfig.debug"
592 source "security/Kconfig"
594 source "crypto/Kconfig"