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
90 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
91 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
93 config ARCH_PROC_KCORE_TEXT
106 config ARCH_DMA_ADDR_T_64BIT
108 default y if ARCH_ATU
114 config STACKTRACE_SUPPORT
118 config LOCKDEP_SUPPORT
122 config ARCH_HIBERNATION_POSSIBLE
123 def_bool y if SPARC64
129 config HAVE_SETUP_PER_CPU_AREA
130 def_bool y if SPARC64
132 config NEED_PER_CPU_EMBED_FIRST_CHUNK
133 def_bool y if SPARC64
135 config NEED_PER_CPU_PAGE_FIRST_CHUNK
136 def_bool y if SPARC64
150 config NEED_DMA_MAP_STATE
153 config NEED_SG_DMA_LENGTH
156 config GENERIC_ISA_DMA
160 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
161 def_bool y if SPARC64
163 config PGTABLE_LEVELS
167 config ARCH_SUPPORTS_UPROBES
168 def_bool y if SPARC64
170 source "init/Kconfig"
172 source "kernel/Kconfig.freezer"
174 menu "Processor type and features"
177 bool "Symmetric multi-processing support"
179 This enables support for systems with more than one CPU. If you have
180 a system with only one CPU, say N. If you have a system with more
183 If you say N here, the kernel will run on uni- and multiprocessor
184 machines, but will use only one CPU of a multiprocessor machine. If
185 you say Y here, the kernel will run on many, but not all,
186 uniprocessor machines. On a uniprocessor machine, the kernel
187 will run faster if you say N here.
189 People using multiprocessor machines who say Y here should also say
190 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
191 Management" code will be disabled if you say Y here.
193 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
194 available at <http://www.tldp.org/docs.html#howto>.
196 If you don't know what to do here, say N.
199 int "Maximum number of CPUs"
201 range 2 32 if SPARC32
202 range 2 4096 if SPARC64
203 default 32 if SPARC32
204 default 4096 if SPARC64
206 source kernel/Kconfig.hz
208 config RWSEM_GENERIC_SPINLOCK
212 config RWSEM_XCHGADD_ALGORITHM
216 config GENERIC_HWEIGHT
220 config GENERIC_CALIBRATE_DELAY
224 config ARCH_MAY_HAVE_PC_FDC
228 config EMULATED_CMPXCHG
232 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
233 is emulated, and therefore it is not completely atomic.
239 depends on SPARC32 && SMP
244 depends on SPARC64 && SMP
247 bool "Support for early boot text console"
251 Say Y here to enable a faster early framebuffer boot console.
254 bool "Enable seccomp to safely compute untrusted bytecode"
255 depends on SPARC64 && PROC_FS
258 This kernel feature is useful for number crunching applications
259 that may need to compute untrusted bytecode during their
260 execution. By using pipes or other transports made available to
261 the process as file descriptors supporting the read/write
262 syscalls, it's possible to isolate those applications in
263 their own address space using seccomp. Once seccomp is
264 enabled via /proc/<pid>/seccomp, it cannot be disabled
265 and the task is only allowed to execute a few safe syscalls
266 defined by each seccomp mode.
268 If unsure, say Y. Only embedded should say N here.
271 bool "Support for hot-pluggable CPUs"
272 depends on SPARC64 && SMP
274 Say Y here to experiment with turning CPUs off and on. CPUs
275 can be controlled through /sys/devices/system/cpu/cpu#.
276 Say N if you want to disable CPU hotplug.
279 source "drivers/cpufreq/Kconfig"
283 tristate "UltraSPARC-III Memory Controller driver"
287 This adds a driver for the UltraSPARC-III memory controller.
288 Loading this driver allows exact mnemonic strings to be
289 printed in the event of a memory error, so that the faulty DIMM
290 on the motherboard can be matched to the error.
292 If in doubt, say Y, as this information can be very useful.
294 # Global things across all Sun machines.
295 config GENERIC_LOCKBREAK
298 depends on SPARC64 && SMP && PREEMPT
302 depends on SPARC64 && SMP
305 int "Maximum NUMA Nodes (as a power of 2)"
308 depends on NEED_MULTIPLE_NODES
310 Specify the maximum number of NUMA Nodes available on the target
311 system. Increases memory reserved to accommodate various tables.
313 # Some NUMA nodes have memory ranges that span
314 # other nodes. Even though a pfn is valid and
315 # between a node's start and end pfns, it may not
316 # reside on that node. See memmap_init_zone()
318 config NODES_SPAN_OTHER_NODES
320 depends on NEED_MULTIPLE_NODES
322 config ARCH_SELECT_MEMORY_MODEL
323 def_bool y if SPARC64
325 config ARCH_SPARSEMEM_ENABLE
326 def_bool y if SPARC64
327 select SPARSEMEM_VMEMMAP_ENABLE
329 config ARCH_SPARSEMEM_DEFAULT
330 def_bool y if SPARC64
332 config FORCE_MAX_ZONEORDER
333 int "Maximum zone order"
336 The kernel memory allocator divides physically contiguous memory
337 blocks into "zones", where each zone is a power of two number of
338 pages. This option selects the largest power of two that the kernel
339 keeps in the memory allocator. If you need to allocate very large
340 blocks of physically contiguous memory, then you may need to
343 This config option is actually maximum order plus one. For example,
344 a value of 13 means that the largest free memory block is 2^12 pages.
349 source "kernel/power/Kconfig"
353 bool "SMT (Hyperthreading) scheduler support"
354 depends on SPARC64 && SMP
357 SMT scheduler support improves the CPU scheduler's decision making
358 when dealing with SPARC cpus at a cost of slightly increased overhead
359 in some places. If unsure say N here.
362 bool "Multi-core scheduler support"
363 depends on SPARC64 && SMP
366 Multi-core scheduler support improves the CPU scheduler's decision
367 making when dealing with multi-core CPU chips at a cost of slightly
368 increased overhead in some places. If unsure say N here.
370 source "kernel/Kconfig.preempt"
373 bool "Default bootloader kernel arguments"
377 string "Initial kernel command string"
378 depends on CMDLINE_BOOL
379 default "console=ttyS0,9600 root=/dev/sda1"
381 Say Y here if you want to be able to pass default arguments to
382 the kernel. This will be overridden by the bootloader, if you
383 use one (such as SILO). This is most useful if you want to boot
384 a kernel from TFTP, and want default options to be available
385 with having them passed on the command line.
387 NOTE: This option WILL override the PROM bootargs setting!
393 Enable power management and CPU standby features on supported
397 tristate "Sun4m LED driver"
400 This driver toggles the front-panel LED on sun4m systems
401 in a user-specifiable manner. Its state can be probed
402 by reading /proc/led and its blinking mode can be changed
403 via writes to /proc/led
405 config SERIAL_CONSOLE
410 If you say Y here, it will be possible to use a serial port as the
411 system console (the system console is the device which receives all
412 kernel messages and warnings and which allows logins in single user
413 mode). This could be useful if some terminal or printer is connected
416 Even if you say Y here, the currently visible virtual console
417 (/dev/tty0) will still be used as the system console by default, but
418 you can alter that using a kernel command line option such as
419 "console=ttyS1". (Try "man bootparam" or see the documentation of
420 your boot loader (silo) about how to pass options to the kernel at
423 If you don't have a graphics card installed and you say Y here, the
424 kernel will automatically use the first serial line, /dev/ttyS0, as
430 bool "Sparc Leon processor family"
432 select USB_EHCI_BIG_ENDIAN_MMIO
433 select USB_EHCI_BIG_ENDIAN_DESC
435 If you say Y here if you are running on a SPARC-LEON processor.
436 The LEON processor is a synthesizable VHDL model of the
437 SPARC-v8 standard. LEON is part of the GRLIB collection of
438 IP cores that are distributed under GPL. GRLIB can be downloaded
439 from www.gaisler.com. You can download a sparc-linux cross-compilation
440 toolchain at www.gaisler.com.
443 menu "U-Boot options"
445 config UBOOT_LOAD_ADDR
446 hex "uImage Load Address"
449 U-Boot kernel load address, the address in physical address space
450 where u-boot will place the Linux kernel before booting it.
451 This address is normally the base address of main memory + 0x4000.
453 config UBOOT_FLASH_ADDR
454 hex "uImage.o Load Address"
457 Optional setting only affecting the uImage.o ELF-image used to
458 download the uImage file to the target using a ELF-loader other than
459 U-Boot. It may for example be used to download an uImage to FLASH with
460 the GRMON utility before even starting u-boot.
462 config UBOOT_ENTRY_ADDR
463 hex "uImage Entry Address"
466 Do not change this unless you know what you're doing. This is
467 hardcoded by the SPARC32 and LEON port.
469 This is the virtual address u-boot jumps to when booting the Linux
477 menu "Bus options (PCI etc.)"
487 bool "Sun Logical Domains support"
490 Say Y here is you want to support virtual devices via
494 bool "Support for PCI and PS/2 keyboard/mouse"
496 Find out whether your system includes a PCI bus. PCI is the name of
497 a bus system, i.e. the way the CPU talks to the other stuff inside
498 your box. If you say Y here, the kernel will include drivers and
499 infrastructure code to support PCI bus devices.
501 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
502 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
503 All of these platforms are extremely obscure, so say N if unsure.
506 def_bool PCI if SPARC64
513 depends on PCI && SPARC32 && !SPARC_LEON
518 depends on PCI && SPARC_LEON
522 bool "GRPCI Host Bridge Support"
526 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
527 PCI host controller is typically found in GRLIB SPARC32/LEON
528 systems. The driver has one property (all_pci_errors) controlled
529 from the bootloader that makes the GRPCI to generate interrupts
530 on detected PCI Parity and System errors.
533 bool "GRPCI2 Host Bridge Support"
537 Say Y here to include the GRPCI2 Host Bridge Driver.
539 source "drivers/pci/Kconfig"
541 source "drivers/pcmcia/Kconfig"
543 config SUN_OPENPROMFS
544 tristate "Openprom tree appears in /proc/openprom"
546 If you say Y, the OpenPROM device tree will be available as a
547 virtual file system, which you can mount to /proc/openprom by "mount
548 -t openpromfs none /proc/openprom".
550 To compile the /proc/openprom support as a module, choose M here: the
551 module will be called openpromfs.
553 Only choose N if you know in advance that you will not need to modify
554 OpenPROM settings on the running system.
560 depends on SPARC64 && PCI
562 config SPARC64_PCI_MSI
565 depends on SPARC64_PCI && PCI_MSI
569 menu "Executable file formats"
571 source "fs/Kconfig.binfmt"
577 select COMPAT_BINFMT_ELF if BINFMT_ELF
579 select ARCH_WANT_OLD_COMPAT_IPC
580 select COMPAT_OLD_SIGACTION
582 config SYSVIPC_COMPAT
584 depends on COMPAT && SYSVIPC
591 source "drivers/Kconfig"
593 source "drivers/sbus/char/Kconfig"
597 source "arch/sparc/Kconfig.debug"
599 source "security/Kconfig"
601 source "crypto/Kconfig"