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
100 config CPU_BIG_ENDIAN
107 config ARCH_DMA_ADDR_T_64BIT
109 default y if ARCH_ATU
115 config STACKTRACE_SUPPORT
119 config LOCKDEP_SUPPORT
123 config ARCH_HIBERNATION_POSSIBLE
124 def_bool y if SPARC64
130 config HAVE_SETUP_PER_CPU_AREA
131 def_bool y if SPARC64
133 config NEED_PER_CPU_EMBED_FIRST_CHUNK
134 def_bool y if SPARC64
136 config NEED_PER_CPU_PAGE_FIRST_CHUNK
137 def_bool y if SPARC64
151 config NEED_DMA_MAP_STATE
154 config NEED_SG_DMA_LENGTH
157 config GENERIC_ISA_DMA
161 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
162 def_bool y if SPARC64
164 config PGTABLE_LEVELS
168 config ARCH_SUPPORTS_UPROBES
169 def_bool y if SPARC64
171 source "init/Kconfig"
173 source "kernel/Kconfig.freezer"
175 menu "Processor type and features"
178 bool "Symmetric multi-processing support"
180 This enables support for systems with more than one CPU. If you have
181 a system with only one CPU, say N. If you have a system with more
184 If you say N here, the kernel will run on uni- and multiprocessor
185 machines, but will use only one CPU of a multiprocessor machine. If
186 you say Y here, the kernel will run on many, but not all,
187 uniprocessor machines. On a uniprocessor machine, the kernel
188 will run faster if you say N here.
190 People using multiprocessor machines who say Y here should also say
191 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
192 Management" code will be disabled if you say Y here.
194 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
195 available at <http://www.tldp.org/docs.html#howto>.
197 If you don't know what to do here, say N.
200 int "Maximum number of CPUs"
202 range 2 32 if SPARC32
203 range 2 4096 if SPARC64
204 default 32 if SPARC32
205 default 4096 if SPARC64
207 source kernel/Kconfig.hz
209 config RWSEM_GENERIC_SPINLOCK
213 config RWSEM_XCHGADD_ALGORITHM
217 config GENERIC_HWEIGHT
221 config GENERIC_CALIBRATE_DELAY
225 config ARCH_MAY_HAVE_PC_FDC
229 config EMULATED_CMPXCHG
233 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
234 is emulated, and therefore it is not completely atomic.
240 depends on SPARC32 && SMP
245 depends on SPARC64 && SMP
248 bool "Support for early boot text console"
252 Say Y here to enable a faster early framebuffer boot console.
255 bool "Enable seccomp to safely compute untrusted bytecode"
256 depends on SPARC64 && PROC_FS
259 This kernel feature is useful for number crunching applications
260 that may need to compute untrusted bytecode during their
261 execution. By using pipes or other transports made available to
262 the process as file descriptors supporting the read/write
263 syscalls, it's possible to isolate those applications in
264 their own address space using seccomp. Once seccomp is
265 enabled via /proc/<pid>/seccomp, it cannot be disabled
266 and the task is only allowed to execute a few safe syscalls
267 defined by each seccomp mode.
269 If unsure, say Y. Only embedded should say N here.
272 bool "Support for hot-pluggable CPUs"
273 depends on SPARC64 && SMP
275 Say Y here to experiment with turning CPUs off and on. CPUs
276 can be controlled through /sys/devices/system/cpu/cpu#.
277 Say N if you want to disable CPU hotplug.
280 source "drivers/cpufreq/Kconfig"
284 tristate "UltraSPARC-III Memory Controller driver"
288 This adds a driver for the UltraSPARC-III memory controller.
289 Loading this driver allows exact mnemonic strings to be
290 printed in the event of a memory error, so that the faulty DIMM
291 on the motherboard can be matched to the error.
293 If in doubt, say Y, as this information can be very useful.
295 # Global things across all Sun machines.
296 config GENERIC_LOCKBREAK
299 depends on SPARC64 && SMP && PREEMPT
303 depends on SPARC64 && SMP
306 int "Maximum NUMA Nodes (as a power of 2)"
309 depends on NEED_MULTIPLE_NODES
311 Specify the maximum number of NUMA Nodes available on the target
312 system. Increases memory reserved to accommodate various tables.
314 # Some NUMA nodes have memory ranges that span
315 # other nodes. Even though a pfn is valid and
316 # between a node's start and end pfns, it may not
317 # reside on that node. See memmap_init_zone()
319 config NODES_SPAN_OTHER_NODES
321 depends on NEED_MULTIPLE_NODES
323 config ARCH_SELECT_MEMORY_MODEL
324 def_bool y if SPARC64
326 config ARCH_SPARSEMEM_ENABLE
327 def_bool y if SPARC64
328 select SPARSEMEM_VMEMMAP_ENABLE
330 config ARCH_SPARSEMEM_DEFAULT
331 def_bool y if SPARC64
333 config FORCE_MAX_ZONEORDER
334 int "Maximum zone order"
337 The kernel memory allocator divides physically contiguous memory
338 blocks into "zones", where each zone is a power of two number of
339 pages. This option selects the largest power of two that the kernel
340 keeps in the memory allocator. If you need to allocate very large
341 blocks of physically contiguous memory, then you may need to
344 This config option is actually maximum order plus one. For example,
345 a value of 13 means that the largest free memory block is 2^12 pages.
350 source "kernel/power/Kconfig"
354 bool "SMT (Hyperthreading) scheduler support"
355 depends on SPARC64 && SMP
358 SMT scheduler support improves the CPU scheduler's decision making
359 when dealing with SPARC cpus at a cost of slightly increased overhead
360 in some places. If unsure say N here.
363 bool "Multi-core scheduler support"
364 depends on SPARC64 && SMP
367 Multi-core scheduler support improves the CPU scheduler's decision
368 making when dealing with multi-core CPU chips at a cost of slightly
369 increased overhead in some places. If unsure say N here.
371 source "kernel/Kconfig.preempt"
374 bool "Default bootloader kernel arguments"
378 string "Initial kernel command string"
379 depends on CMDLINE_BOOL
380 default "console=ttyS0,9600 root=/dev/sda1"
382 Say Y here if you want to be able to pass default arguments to
383 the kernel. This will be overridden by the bootloader, if you
384 use one (such as SILO). This is most useful if you want to boot
385 a kernel from TFTP, and want default options to be available
386 with having them passed on the command line.
388 NOTE: This option WILL override the PROM bootargs setting!
394 Enable power management and CPU standby features on supported
398 tristate "Sun4m LED driver"
401 This driver toggles the front-panel LED on sun4m systems
402 in a user-specifiable manner. Its state can be probed
403 by reading /proc/led and its blinking mode can be changed
404 via writes to /proc/led
406 config SERIAL_CONSOLE
411 If you say Y here, it will be possible to use a serial port as the
412 system console (the system console is the device which receives all
413 kernel messages and warnings and which allows logins in single user
414 mode). This could be useful if some terminal or printer is connected
417 Even if you say Y here, the currently visible virtual console
418 (/dev/tty0) will still be used as the system console by default, but
419 you can alter that using a kernel command line option such as
420 "console=ttyS1". (Try "man bootparam" or see the documentation of
421 your boot loader (silo) about how to pass options to the kernel at
424 If you don't have a graphics card installed and you say Y here, the
425 kernel will automatically use the first serial line, /dev/ttyS0, as
431 bool "Sparc Leon processor family"
433 select USB_EHCI_BIG_ENDIAN_MMIO
434 select USB_EHCI_BIG_ENDIAN_DESC
436 If you say Y here if you are running on a SPARC-LEON processor.
437 The LEON processor is a synthesizable VHDL model of the
438 SPARC-v8 standard. LEON is part of the GRLIB collection of
439 IP cores that are distributed under GPL. GRLIB can be downloaded
440 from www.gaisler.com. You can download a sparc-linux cross-compilation
441 toolchain at www.gaisler.com.
444 menu "U-Boot options"
446 config UBOOT_LOAD_ADDR
447 hex "uImage Load Address"
450 U-Boot kernel load address, the address in physical address space
451 where u-boot will place the Linux kernel before booting it.
452 This address is normally the base address of main memory + 0x4000.
454 config UBOOT_FLASH_ADDR
455 hex "uImage.o Load Address"
458 Optional setting only affecting the uImage.o ELF-image used to
459 download the uImage file to the target using a ELF-loader other than
460 U-Boot. It may for example be used to download an uImage to FLASH with
461 the GRMON utility before even starting u-boot.
463 config UBOOT_ENTRY_ADDR
464 hex "uImage Entry Address"
467 Do not change this unless you know what you're doing. This is
468 hardcoded by the SPARC32 and LEON port.
470 This is the virtual address u-boot jumps to when booting the Linux
478 menu "Bus options (PCI etc.)"
488 bool "Sun Logical Domains support"
491 Say Y here is you want to support virtual devices via
495 bool "Support for PCI and PS/2 keyboard/mouse"
497 Find out whether your system includes a PCI bus. PCI is the name of
498 a bus system, i.e. the way the CPU talks to the other stuff inside
499 your box. If you say Y here, the kernel will include drivers and
500 infrastructure code to support PCI bus devices.
502 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
503 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
504 All of these platforms are extremely obscure, so say N if unsure.
507 def_bool PCI if SPARC64
514 depends on PCI && SPARC32 && !SPARC_LEON
519 depends on PCI && SPARC_LEON
523 bool "GRPCI Host Bridge Support"
527 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
528 PCI host controller is typically found in GRLIB SPARC32/LEON
529 systems. The driver has one property (all_pci_errors) controlled
530 from the bootloader that makes the GRPCI to generate interrupts
531 on detected PCI Parity and System errors.
534 bool "GRPCI2 Host Bridge Support"
538 Say Y here to include the GRPCI2 Host Bridge Driver.
540 source "drivers/pci/Kconfig"
542 source "drivers/pcmcia/Kconfig"
544 config SUN_OPENPROMFS
545 tristate "Openprom tree appears in /proc/openprom"
547 If you say Y, the OpenPROM device tree will be available as a
548 virtual file system, which you can mount to /proc/openprom by "mount
549 -t openpromfs none /proc/openprom".
551 To compile the /proc/openprom support as a module, choose M here: the
552 module will be called openpromfs.
554 Only choose N if you know in advance that you will not need to modify
555 OpenPROM settings on the running system.
561 depends on SPARC64 && PCI
563 config SPARC64_PCI_MSI
566 depends on SPARC64_PCI && PCI_MSI
570 menu "Executable file formats"
572 source "fs/Kconfig.binfmt"
578 select COMPAT_BINFMT_ELF
580 select ARCH_WANT_OLD_COMPAT_IPC
581 select COMPAT_OLD_SIGACTION
583 config SYSVIPC_COMPAT
585 depends on COMPAT && SYSVIPC
592 source "drivers/Kconfig"
594 source "drivers/sbus/char/Kconfig"
598 source "arch/sparc/Kconfig.debug"
600 source "security/Kconfig"
602 source "crypto/Kconfig"