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
50 select GENERIC_ATOMIC64
57 select HAVE_FUNCTION_TRACER
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_KRETPROBES
61 select HAVE_RCU_TABLE_FREE if SMP
63 select HAVE_MEMBLOCK_NODE_MAP
64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_CONTEXT_TRACKING
69 select HAVE_DEBUG_KMEMLEAK
74 select RTC_DRV_STARFIRE
75 select HAVE_PERF_EVENTS
76 select PERF_USE_VMALLOC
77 select IRQ_PREFLOW_FASTEOI
78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
79 select HAVE_C_RECORDMCOUNT
81 select HAVE_ARCH_AUDITSYSCALL
82 select ARCH_SUPPORTS_ATOMIC_RMW
84 select HAVE_REGS_AND_STACK_ACCESS_API
85 select ARCH_USE_QUEUED_RWLOCKS
86 select ARCH_USE_QUEUED_SPINLOCKS
87 select GENERIC_TIME_VSYSCALL
88 select ARCH_CLOCKSOURCE_DATA
92 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
93 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
95 config ARCH_PROC_KCORE_TEXT
105 config ARCH_DMA_ADDR_T_64BIT
107 default y if ARCH_ATU
113 config STACKTRACE_SUPPORT
117 config LOCKDEP_SUPPORT
121 config ARCH_HIBERNATION_POSSIBLE
122 def_bool y if SPARC64
128 config HAVE_SETUP_PER_CPU_AREA
129 def_bool y if SPARC64
131 config NEED_PER_CPU_EMBED_FIRST_CHUNK
132 def_bool y if SPARC64
134 config NEED_PER_CPU_PAGE_FIRST_CHUNK
135 def_bool y if SPARC64
149 config NEED_DMA_MAP_STATE
152 config NEED_SG_DMA_LENGTH
155 config GENERIC_ISA_DMA
159 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
160 def_bool y if SPARC64
162 config PGTABLE_LEVELS
166 config ARCH_SUPPORTS_UPROBES
167 def_bool y if SPARC64
169 source "init/Kconfig"
171 source "kernel/Kconfig.freezer"
173 menu "Processor type and features"
176 bool "Symmetric multi-processing support"
178 This enables support for systems with more than one CPU. If you have
179 a system with only one CPU, say N. If you have a system with more
182 If you say N here, the kernel will run on uni- and multiprocessor
183 machines, but will use only one CPU of a multiprocessor machine. If
184 you say Y here, the kernel will run on many, but not all,
185 uniprocessor machines. On a uniprocessor machine, the kernel
186 will run faster if you say N here.
188 People using multiprocessor machines who say Y here should also say
189 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
190 Management" code will be disabled if you say Y here.
192 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
193 available at <http://www.tldp.org/docs.html#howto>.
195 If you don't know what to do here, say N.
198 int "Maximum number of CPUs"
200 range 2 32 if SPARC32
201 range 2 4096 if SPARC64
202 default 32 if SPARC32
203 default 4096 if SPARC64
205 source kernel/Kconfig.hz
207 config RWSEM_GENERIC_SPINLOCK
211 config RWSEM_XCHGADD_ALGORITHM
215 config GENERIC_HWEIGHT
219 config GENERIC_CALIBRATE_DELAY
223 config ARCH_MAY_HAVE_PC_FDC
227 config EMULATED_CMPXCHG
231 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
232 is emulated, and therefore it is not completely atomic.
238 depends on SPARC32 && SMP
243 depends on SPARC64 && SMP
246 bool "Support for early boot text console"
250 Say Y here to enable a faster early framebuffer boot console.
253 bool "Enable seccomp to safely compute untrusted bytecode"
254 depends on SPARC64 && PROC_FS
257 This kernel feature is useful for number crunching applications
258 that may need to compute untrusted bytecode during their
259 execution. By using pipes or other transports made available to
260 the process as file descriptors supporting the read/write
261 syscalls, it's possible to isolate those applications in
262 their own address space using seccomp. Once seccomp is
263 enabled via /proc/<pid>/seccomp, it cannot be disabled
264 and the task is only allowed to execute a few safe syscalls
265 defined by each seccomp mode.
267 If unsure, say Y. Only embedded should say N here.
270 bool "Support for hot-pluggable CPUs"
271 depends on SPARC64 && SMP
273 Say Y here to experiment with turning CPUs off and on. CPUs
274 can be controlled through /sys/devices/system/cpu/cpu#.
275 Say N if you want to disable CPU hotplug.
278 source "drivers/cpufreq/Kconfig"
282 tristate "UltraSPARC-III Memory Controller driver"
286 This adds a driver for the UltraSPARC-III memory controller.
287 Loading this driver allows exact mnemonic strings to be
288 printed in the event of a memory error, so that the faulty DIMM
289 on the motherboard can be matched to the error.
291 If in doubt, say Y, as this information can be very useful.
293 # Global things across all Sun machines.
294 config GENERIC_LOCKBREAK
297 depends on SPARC64 && SMP && PREEMPT
301 depends on SPARC64 && SMP
304 int "Maximum NUMA Nodes (as a power of 2)"
307 depends on NEED_MULTIPLE_NODES
309 Specify the maximum number of NUMA Nodes available on the target
310 system. Increases memory reserved to accommodate various tables.
312 # Some NUMA nodes have memory ranges that span
313 # other nodes. Even though a pfn is valid and
314 # between a node's start and end pfns, it may not
315 # reside on that node. See memmap_init_zone()
317 config NODES_SPAN_OTHER_NODES
319 depends on NEED_MULTIPLE_NODES
321 config ARCH_SELECT_MEMORY_MODEL
322 def_bool y if SPARC64
324 config ARCH_SPARSEMEM_ENABLE
325 def_bool y if SPARC64
326 select SPARSEMEM_VMEMMAP_ENABLE
328 config ARCH_SPARSEMEM_DEFAULT
329 def_bool y if SPARC64
331 config FORCE_MAX_ZONEORDER
332 int "Maximum zone order"
335 The kernel memory allocator divides physically contiguous memory
336 blocks into "zones", where each zone is a power of two number of
337 pages. This option selects the largest power of two that the kernel
338 keeps in the memory allocator. If you need to allocate very large
339 blocks of physically contiguous memory, then you may need to
342 This config option is actually maximum order plus one. For example,
343 a value of 13 means that the largest free memory block is 2^12 pages.
348 source "kernel/power/Kconfig"
352 bool "SMT (Hyperthreading) scheduler support"
353 depends on SPARC64 && SMP
356 SMT scheduler support improves the CPU scheduler's decision making
357 when dealing with SPARC cpus at a cost of slightly increased overhead
358 in some places. If unsure say N here.
361 bool "Multi-core scheduler support"
362 depends on SPARC64 && SMP
365 Multi-core scheduler support improves the CPU scheduler's decision
366 making when dealing with multi-core CPU chips at a cost of slightly
367 increased overhead in some places. If unsure say N here.
369 source "kernel/Kconfig.preempt"
372 bool "Default bootloader kernel arguments"
376 string "Initial kernel command string"
377 depends on CMDLINE_BOOL
378 default "console=ttyS0,9600 root=/dev/sda1"
380 Say Y here if you want to be able to pass default arguments to
381 the kernel. This will be overridden by the bootloader, if you
382 use one (such as SILO). This is most useful if you want to boot
383 a kernel from TFTP, and want default options to be available
384 with having them passed on the command line.
386 NOTE: This option WILL override the PROM bootargs setting!
392 Enable power management and CPU standby features on supported
396 tristate "Sun4m LED driver"
399 This driver toggles the front-panel LED on sun4m systems
400 in a user-specifiable manner. Its state can be probed
401 by reading /proc/led and its blinking mode can be changed
402 via writes to /proc/led
404 config SERIAL_CONSOLE
409 If you say Y here, it will be possible to use a serial port as the
410 system console (the system console is the device which receives all
411 kernel messages and warnings and which allows logins in single user
412 mode). This could be useful if some terminal or printer is connected
415 Even if you say Y here, the currently visible virtual console
416 (/dev/tty0) will still be used as the system console by default, but
417 you can alter that using a kernel command line option such as
418 "console=ttyS1". (Try "man bootparam" or see the documentation of
419 your boot loader (silo) about how to pass options to the kernel at
422 If you don't have a graphics card installed and you say Y here, the
423 kernel will automatically use the first serial line, /dev/ttyS0, as
429 bool "Sparc Leon processor family"
431 select USB_EHCI_BIG_ENDIAN_MMIO
432 select USB_EHCI_BIG_ENDIAN_DESC
434 If you say Y here if you are running on a SPARC-LEON processor.
435 The LEON processor is a synthesizable VHDL model of the
436 SPARC-v8 standard. LEON is part of the GRLIB collection of
437 IP cores that are distributed under GPL. GRLIB can be downloaded
438 from www.gaisler.com. You can download a sparc-linux cross-compilation
439 toolchain at www.gaisler.com.
442 menu "U-Boot options"
444 config UBOOT_LOAD_ADDR
445 hex "uImage Load Address"
448 U-Boot kernel load address, the address in physical address space
449 where u-boot will place the Linux kernel before booting it.
450 This address is normally the base address of main memory + 0x4000.
452 config UBOOT_FLASH_ADDR
453 hex "uImage.o Load Address"
456 Optional setting only affecting the uImage.o ELF-image used to
457 download the uImage file to the target using a ELF-loader other than
458 U-Boot. It may for example be used to download an uImage to FLASH with
459 the GRMON utility before even starting u-boot.
461 config UBOOT_ENTRY_ADDR
462 hex "uImage Entry Address"
465 Do not change this unless you know what you're doing. This is
466 hardcoded by the SPARC32 and LEON port.
468 This is the virtual address u-boot jumps to when booting the Linux
476 menu "Bus options (PCI etc.)"
486 bool "Sun Logical Domains support"
489 Say Y here is you want to support virtual devices via
493 bool "Support for PCI and PS/2 keyboard/mouse"
495 Find out whether your system includes a PCI bus. PCI is the name of
496 a bus system, i.e. the way the CPU talks to the other stuff inside
497 your box. If you say Y here, the kernel will include drivers and
498 infrastructure code to support PCI bus devices.
500 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
501 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
502 All of these platforms are extremely obscure, so say N if unsure.
505 def_bool PCI if SPARC64
512 depends on PCI && SPARC32 && !SPARC_LEON
517 depends on PCI && SPARC_LEON
521 bool "GRPCI Host Bridge Support"
525 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
526 PCI host controller is typically found in GRLIB SPARC32/LEON
527 systems. The driver has one property (all_pci_errors) controlled
528 from the bootloader that makes the GRPCI to generate interrupts
529 on detected PCI Parity and System errors.
532 bool "GRPCI2 Host Bridge Support"
536 Say Y here to include the GRPCI2 Host Bridge Driver.
538 source "drivers/pci/Kconfig"
540 source "drivers/pcmcia/Kconfig"
542 config SUN_OPENPROMFS
543 tristate "Openprom tree appears in /proc/openprom"
545 If you say Y, the OpenPROM device tree will be available as a
546 virtual file system, which you can mount to /proc/openprom by "mount
547 -t openpromfs none /proc/openprom".
549 To compile the /proc/openprom support as a module, choose M here: the
550 module will be called openpromfs.
552 Only choose N if you know in advance that you will not need to modify
553 OpenPROM settings on the running system.
559 depends on SPARC64 && PCI
561 config SPARC64_PCI_MSI
564 depends on SPARC64_PCI && PCI_MSI
568 menu "Executable file formats"
570 source "fs/Kconfig.binfmt"
576 select COMPAT_BINFMT_ELF
578 select ARCH_WANT_OLD_COMPAT_IPC
579 select COMPAT_OLD_SIGACTION
581 config SYSVIPC_COMPAT
583 depends on COMPAT && SYSVIPC
590 source "drivers/Kconfig"
592 source "drivers/sbus/char/Kconfig"
596 source "arch/sparc/Kconfig.debug"
598 source "security/Kconfig"
600 source "crypto/Kconfig"