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_ARCH_JUMP_LABEL if SPARC64
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
33 select HAVE_CBPF_JIT if SPARC32
34 select HAVE_EBPF_JIT if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
40 select MODULES_USE_ELF_RELA
41 select ODD_RT_SIGACTION
43 select ARCH_HAS_SG_CHAIN
44 select CPU_NO_EFFICIENT_FFS
45 select LOCKDEP_SMALL if LOCKDEP
46 select NEED_DMA_MAP_STATE
47 select NEED_SG_DMA_LENGTH
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
76 select RTC_DRV_STARFIRE
77 select HAVE_PERF_EVENTS
78 select PERF_USE_VMALLOC
79 select IRQ_PREFLOW_FASTEOI
80 select ARCH_HAVE_NMI_SAFE_CMPXCHG
81 select HAVE_C_RECORDMCOUNT
83 select HAVE_ARCH_AUDITSYSCALL
84 select ARCH_SUPPORTS_ATOMIC_RMW
86 select HAVE_REGS_AND_STACK_ACCESS_API
87 select ARCH_USE_QUEUED_RWLOCKS
88 select ARCH_USE_QUEUED_SPINLOCKS
89 select GENERIC_TIME_VSYSCALL
90 select ARCH_CLOCKSOURCE_DATA
91 select ARCH_HAS_PTE_SPECIAL
95 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
96 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
98 config ARCH_PROC_KCORE_TEXT
101 config CPU_BIG_ENDIAN
108 config STACKTRACE_SUPPORT
112 config LOCKDEP_SUPPORT
116 config ARCH_HIBERNATION_POSSIBLE
117 def_bool y if SPARC64
123 config HAVE_SETUP_PER_CPU_AREA
124 def_bool y if SPARC64
126 config NEED_PER_CPU_EMBED_FIRST_CHUNK
127 def_bool y if SPARC64
129 config NEED_PER_CPU_PAGE_FIRST_CHUNK
130 def_bool y if SPARC64
144 config GENERIC_ISA_DMA
148 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
149 def_bool y if SPARC64
151 config PGTABLE_LEVELS
155 config ARCH_SUPPORTS_UPROBES
156 def_bool y if SPARC64
158 source "init/Kconfig"
160 source "kernel/Kconfig.freezer"
162 menu "Processor type and features"
165 bool "Symmetric multi-processing support"
167 This enables support for systems with more than one CPU. If you have
168 a system with only one CPU, say N. If you have a system with more
171 If you say N here, the kernel will run on uni- and multiprocessor
172 machines, but will use only one CPU of a multiprocessor machine. If
173 you say Y here, the kernel will run on many, but not all,
174 uniprocessor machines. On a uniprocessor machine, the kernel
175 will run faster if you say N here.
177 People using multiprocessor machines who say Y here should also say
178 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
179 Management" code will be disabled if you say Y here.
181 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
182 available at <http://www.tldp.org/docs.html#howto>.
184 If you don't know what to do here, say N.
187 int "Maximum number of CPUs"
189 range 2 32 if SPARC32
190 range 2 4096 if SPARC64
191 default 32 if SPARC32
192 default 4096 if SPARC64
194 source kernel/Kconfig.hz
196 config RWSEM_GENERIC_SPINLOCK
200 config RWSEM_XCHGADD_ALGORITHM
204 config GENERIC_HWEIGHT
208 config GENERIC_CALIBRATE_DELAY
212 config ARCH_MAY_HAVE_PC_FDC
216 config EMULATED_CMPXCHG
220 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
221 is emulated, and therefore it is not completely atomic.
227 depends on SPARC32 && SMP
232 depends on SPARC64 && SMP
235 bool "Support for early boot text console"
239 Say Y here to enable a faster early framebuffer boot console.
242 bool "Enable seccomp to safely compute untrusted bytecode"
243 depends on SPARC64 && PROC_FS
246 This kernel feature is useful for number crunching applications
247 that may need to compute untrusted bytecode during their
248 execution. By using pipes or other transports made available to
249 the process as file descriptors supporting the read/write
250 syscalls, it's possible to isolate those applications in
251 their own address space using seccomp. Once seccomp is
252 enabled via /proc/<pid>/seccomp, it cannot be disabled
253 and the task is only allowed to execute a few safe syscalls
254 defined by each seccomp mode.
256 If unsure, say Y. Only embedded should say N here.
259 bool "Support for hot-pluggable CPUs"
260 depends on SPARC64 && SMP
262 Say Y here to experiment with turning CPUs off and on. CPUs
263 can be controlled through /sys/devices/system/cpu/cpu#.
264 Say N if you want to disable CPU hotplug.
267 source "drivers/cpufreq/Kconfig"
271 tristate "UltraSPARC-III Memory Controller driver"
275 This adds a driver for the UltraSPARC-III memory controller.
276 Loading this driver allows exact mnemonic strings to be
277 printed in the event of a memory error, so that the faulty DIMM
278 on the motherboard can be matched to the error.
280 If in doubt, say Y, as this information can be very useful.
282 # Global things across all Sun machines.
283 config GENERIC_LOCKBREAK
286 depends on SPARC64 && SMP && PREEMPT
290 depends on SPARC64 && SMP
293 int "Maximum NUMA Nodes (as a power of 2)"
296 depends on NEED_MULTIPLE_NODES
298 Specify the maximum number of NUMA Nodes available on the target
299 system. Increases memory reserved to accommodate various tables.
301 # Some NUMA nodes have memory ranges that span
302 # other nodes. Even though a pfn is valid and
303 # between a node's start and end pfns, it may not
304 # reside on that node. See memmap_init_zone()
306 config NODES_SPAN_OTHER_NODES
308 depends on NEED_MULTIPLE_NODES
310 config ARCH_SELECT_MEMORY_MODEL
311 def_bool y if SPARC64
313 config ARCH_SPARSEMEM_ENABLE
314 def_bool y if SPARC64
315 select SPARSEMEM_VMEMMAP_ENABLE
317 config ARCH_SPARSEMEM_DEFAULT
318 def_bool y if SPARC64
320 config FORCE_MAX_ZONEORDER
321 int "Maximum zone order"
324 The kernel memory allocator divides physically contiguous memory
325 blocks into "zones", where each zone is a power of two number of
326 pages. This option selects the largest power of two that the kernel
327 keeps in the memory allocator. If you need to allocate very large
328 blocks of physically contiguous memory, then you may need to
331 This config option is actually maximum order plus one. For example,
332 a value of 13 means that the largest free memory block is 2^12 pages.
337 source "kernel/power/Kconfig"
341 bool "SMT (Hyperthreading) scheduler support"
342 depends on SPARC64 && SMP
345 SMT scheduler support improves the CPU scheduler's decision making
346 when dealing with SPARC cpus at a cost of slightly increased overhead
347 in some places. If unsure say N here.
350 bool "Multi-core scheduler support"
351 depends on SPARC64 && SMP
354 Multi-core scheduler support improves the CPU scheduler's decision
355 making when dealing with multi-core CPU chips at a cost of slightly
356 increased overhead in some places. If unsure say N here.
358 source "kernel/Kconfig.preempt"
361 bool "Default bootloader kernel arguments"
365 string "Initial kernel command string"
366 depends on CMDLINE_BOOL
367 default "console=ttyS0,9600 root=/dev/sda1"
369 Say Y here if you want to be able to pass default arguments to
370 the kernel. This will be overridden by the bootloader, if you
371 use one (such as SILO). This is most useful if you want to boot
372 a kernel from TFTP, and want default options to be available
373 with having them passed on the command line.
375 NOTE: This option WILL override the PROM bootargs setting!
381 Enable power management and CPU standby features on supported
385 tristate "Sun4m LED driver"
388 This driver toggles the front-panel LED on sun4m systems
389 in a user-specifiable manner. Its state can be probed
390 by reading /proc/led and its blinking mode can be changed
391 via writes to /proc/led
393 config SERIAL_CONSOLE
398 If you say Y here, it will be possible to use a serial port as the
399 system console (the system console is the device which receives all
400 kernel messages and warnings and which allows logins in single user
401 mode). This could be useful if some terminal or printer is connected
404 Even if you say Y here, the currently visible virtual console
405 (/dev/tty0) will still be used as the system console by default, but
406 you can alter that using a kernel command line option such as
407 "console=ttyS1". (Try "man bootparam" or see the documentation of
408 your boot loader (silo) about how to pass options to the kernel at
411 If you don't have a graphics card installed and you say Y here, the
412 kernel will automatically use the first serial line, /dev/ttyS0, as
418 bool "Sparc Leon processor family"
420 select USB_EHCI_BIG_ENDIAN_MMIO
421 select USB_EHCI_BIG_ENDIAN_DESC
422 select USB_UHCI_BIG_ENDIAN_MMIO
423 select USB_UHCI_BIG_ENDIAN_DESC
425 If you say Y here if you are running on a SPARC-LEON processor.
426 The LEON processor is a synthesizable VHDL model of the
427 SPARC-v8 standard. LEON is part of the GRLIB collection of
428 IP cores that are distributed under GPL. GRLIB can be downloaded
429 from www.gaisler.com. You can download a sparc-linux cross-compilation
430 toolchain at www.gaisler.com.
433 menu "U-Boot options"
435 config UBOOT_LOAD_ADDR
436 hex "uImage Load Address"
439 U-Boot kernel load address, the address in physical address space
440 where u-boot will place the Linux kernel before booting it.
441 This address is normally the base address of main memory + 0x4000.
443 config UBOOT_FLASH_ADDR
444 hex "uImage.o Load Address"
447 Optional setting only affecting the uImage.o ELF-image used to
448 download the uImage file to the target using a ELF-loader other than
449 U-Boot. It may for example be used to download an uImage to FLASH with
450 the GRMON utility before even starting u-boot.
452 config UBOOT_ENTRY_ADDR
453 hex "uImage Entry Address"
456 Do not change this unless you know what you're doing. This is
457 hardcoded by the SPARC32 and LEON port.
459 This is the virtual address u-boot jumps to when booting the Linux
467 menu "Bus options (PCI etc.)"
477 bool "Sun Logical Domains support"
480 Say Y here is you want to support virtual devices via
484 bool "Support for PCI and PS/2 keyboard/mouse"
486 Find out whether your system includes a PCI bus. PCI is the name of
487 a bus system, i.e. the way the CPU talks to the other stuff inside
488 your box. If you say Y here, the kernel will include drivers and
489 infrastructure code to support PCI bus devices.
491 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
492 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
493 All of these platforms are extremely obscure, so say N if unsure.
496 def_bool PCI if SPARC64
503 depends on PCI && SPARC32 && !SPARC_LEON
508 depends on PCI && SPARC_LEON
512 bool "GRPCI Host Bridge Support"
516 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
517 PCI host controller is typically found in GRLIB SPARC32/LEON
518 systems. The driver has one property (all_pci_errors) controlled
519 from the bootloader that makes the GRPCI to generate interrupts
520 on detected PCI Parity and System errors.
523 bool "GRPCI2 Host Bridge Support"
527 Say Y here to include the GRPCI2 Host Bridge Driver.
529 source "drivers/pci/Kconfig"
531 source "drivers/pcmcia/Kconfig"
533 config SUN_OPENPROMFS
534 tristate "Openprom tree appears in /proc/openprom"
536 If you say Y, the OpenPROM device tree will be available as a
537 virtual file system, which you can mount to /proc/openprom by "mount
538 -t openpromfs none /proc/openprom".
540 To compile the /proc/openprom support as a module, choose M here: the
541 module will be called openpromfs.
543 Only choose N if you know in advance that you will not need to modify
544 OpenPROM settings on the running system.
550 depends on SPARC64 && PCI
552 config SPARC64_PCI_MSI
555 depends on SPARC64_PCI && PCI_MSI
559 menu "Executable file formats"
561 source "fs/Kconfig.binfmt"
567 select COMPAT_BINFMT_ELF
569 select ARCH_WANT_OLD_COMPAT_IPC
570 select COMPAT_OLD_SIGACTION
572 config SYSVIPC_COMPAT
574 depends on COMPAT && SYSVIPC
581 source "drivers/Kconfig"
583 source "drivers/sbus/char/Kconfig"
587 source "arch/sparc/Kconfig.debug"
589 source "security/Kconfig"
591 source "crypto/Kconfig"