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
94 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
95 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
97 config ARCH_PROC_KCORE_TEXT
100 config CPU_BIG_ENDIAN
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 GENERIC_ISA_DMA
147 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
148 def_bool y if SPARC64
150 config PGTABLE_LEVELS
154 config ARCH_SUPPORTS_UPROBES
155 def_bool y if SPARC64
157 source "init/Kconfig"
159 source "kernel/Kconfig.freezer"
161 menu "Processor type and features"
164 bool "Symmetric multi-processing support"
166 This enables support for systems with more than one CPU. If you have
167 a system with only one CPU, say N. If you have a system with more
170 If you say N here, the kernel will run on uni- and multiprocessor
171 machines, but will use only one CPU of a multiprocessor machine. If
172 you say Y here, the kernel will run on many, but not all,
173 uniprocessor machines. On a uniprocessor machine, the kernel
174 will run faster if you say N here.
176 People using multiprocessor machines who say Y here should also say
177 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
178 Management" code will be disabled if you say Y here.
180 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
181 available at <http://www.tldp.org/docs.html#howto>.
183 If you don't know what to do here, say N.
186 int "Maximum number of CPUs"
188 range 2 32 if SPARC32
189 range 2 4096 if SPARC64
190 default 32 if SPARC32
191 default 4096 if SPARC64
193 source kernel/Kconfig.hz
195 config RWSEM_GENERIC_SPINLOCK
199 config RWSEM_XCHGADD_ALGORITHM
203 config GENERIC_HWEIGHT
207 config GENERIC_CALIBRATE_DELAY
211 config ARCH_MAY_HAVE_PC_FDC
215 config EMULATED_CMPXCHG
219 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
220 is emulated, and therefore it is not completely atomic.
226 depends on SPARC32 && SMP
231 depends on SPARC64 && SMP
234 bool "Support for early boot text console"
238 Say Y here to enable a faster early framebuffer boot console.
241 bool "Enable seccomp to safely compute untrusted bytecode"
242 depends on SPARC64 && PROC_FS
245 This kernel feature is useful for number crunching applications
246 that may need to compute untrusted bytecode during their
247 execution. By using pipes or other transports made available to
248 the process as file descriptors supporting the read/write
249 syscalls, it's possible to isolate those applications in
250 their own address space using seccomp. Once seccomp is
251 enabled via /proc/<pid>/seccomp, it cannot be disabled
252 and the task is only allowed to execute a few safe syscalls
253 defined by each seccomp mode.
255 If unsure, say Y. Only embedded should say N here.
258 bool "Support for hot-pluggable CPUs"
259 depends on SPARC64 && SMP
261 Say Y here to experiment with turning CPUs off and on. CPUs
262 can be controlled through /sys/devices/system/cpu/cpu#.
263 Say N if you want to disable CPU hotplug.
266 source "drivers/cpufreq/Kconfig"
270 tristate "UltraSPARC-III Memory Controller driver"
274 This adds a driver for the UltraSPARC-III memory controller.
275 Loading this driver allows exact mnemonic strings to be
276 printed in the event of a memory error, so that the faulty DIMM
277 on the motherboard can be matched to the error.
279 If in doubt, say Y, as this information can be very useful.
281 # Global things across all Sun machines.
282 config GENERIC_LOCKBREAK
285 depends on SPARC64 && SMP && PREEMPT
289 depends on SPARC64 && SMP
292 int "Maximum NUMA Nodes (as a power of 2)"
295 depends on NEED_MULTIPLE_NODES
297 Specify the maximum number of NUMA Nodes available on the target
298 system. Increases memory reserved to accommodate various tables.
300 # Some NUMA nodes have memory ranges that span
301 # other nodes. Even though a pfn is valid and
302 # between a node's start and end pfns, it may not
303 # reside on that node. See memmap_init_zone()
305 config NODES_SPAN_OTHER_NODES
307 depends on NEED_MULTIPLE_NODES
309 config ARCH_SELECT_MEMORY_MODEL
310 def_bool y if SPARC64
312 config ARCH_SPARSEMEM_ENABLE
313 def_bool y if SPARC64
314 select SPARSEMEM_VMEMMAP_ENABLE
316 config ARCH_SPARSEMEM_DEFAULT
317 def_bool y if SPARC64
319 config FORCE_MAX_ZONEORDER
320 int "Maximum zone order"
323 The kernel memory allocator divides physically contiguous memory
324 blocks into "zones", where each zone is a power of two number of
325 pages. This option selects the largest power of two that the kernel
326 keeps in the memory allocator. If you need to allocate very large
327 blocks of physically contiguous memory, then you may need to
330 This config option is actually maximum order plus one. For example,
331 a value of 13 means that the largest free memory block is 2^12 pages.
336 source "kernel/power/Kconfig"
340 bool "SMT (Hyperthreading) scheduler support"
341 depends on SPARC64 && SMP
344 SMT scheduler support improves the CPU scheduler's decision making
345 when dealing with SPARC cpus at a cost of slightly increased overhead
346 in some places. If unsure say N here.
349 bool "Multi-core scheduler support"
350 depends on SPARC64 && SMP
353 Multi-core scheduler support improves the CPU scheduler's decision
354 making when dealing with multi-core CPU chips at a cost of slightly
355 increased overhead in some places. If unsure say N here.
357 source "kernel/Kconfig.preempt"
360 bool "Default bootloader kernel arguments"
364 string "Initial kernel command string"
365 depends on CMDLINE_BOOL
366 default "console=ttyS0,9600 root=/dev/sda1"
368 Say Y here if you want to be able to pass default arguments to
369 the kernel. This will be overridden by the bootloader, if you
370 use one (such as SILO). This is most useful if you want to boot
371 a kernel from TFTP, and want default options to be available
372 with having them passed on the command line.
374 NOTE: This option WILL override the PROM bootargs setting!
380 Enable power management and CPU standby features on supported
384 tristate "Sun4m LED driver"
387 This driver toggles the front-panel LED on sun4m systems
388 in a user-specifiable manner. Its state can be probed
389 by reading /proc/led and its blinking mode can be changed
390 via writes to /proc/led
392 config SERIAL_CONSOLE
397 If you say Y here, it will be possible to use a serial port as the
398 system console (the system console is the device which receives all
399 kernel messages and warnings and which allows logins in single user
400 mode). This could be useful if some terminal or printer is connected
403 Even if you say Y here, the currently visible virtual console
404 (/dev/tty0) will still be used as the system console by default, but
405 you can alter that using a kernel command line option such as
406 "console=ttyS1". (Try "man bootparam" or see the documentation of
407 your boot loader (silo) about how to pass options to the kernel at
410 If you don't have a graphics card installed and you say Y here, the
411 kernel will automatically use the first serial line, /dev/ttyS0, as
417 bool "Sparc Leon processor family"
419 select USB_EHCI_BIG_ENDIAN_MMIO
420 select USB_EHCI_BIG_ENDIAN_DESC
421 select USB_UHCI_BIG_ENDIAN_MMIO
422 select USB_UHCI_BIG_ENDIAN_DESC
424 If you say Y here if you are running on a SPARC-LEON processor.
425 The LEON processor is a synthesizable VHDL model of the
426 SPARC-v8 standard. LEON is part of the GRLIB collection of
427 IP cores that are distributed under GPL. GRLIB can be downloaded
428 from www.gaisler.com. You can download a sparc-linux cross-compilation
429 toolchain at www.gaisler.com.
432 menu "U-Boot options"
434 config UBOOT_LOAD_ADDR
435 hex "uImage Load Address"
438 U-Boot kernel load address, the address in physical address space
439 where u-boot will place the Linux kernel before booting it.
440 This address is normally the base address of main memory + 0x4000.
442 config UBOOT_FLASH_ADDR
443 hex "uImage.o Load Address"
446 Optional setting only affecting the uImage.o ELF-image used to
447 download the uImage file to the target using a ELF-loader other than
448 U-Boot. It may for example be used to download an uImage to FLASH with
449 the GRMON utility before even starting u-boot.
451 config UBOOT_ENTRY_ADDR
452 hex "uImage Entry Address"
455 Do not change this unless you know what you're doing. This is
456 hardcoded by the SPARC32 and LEON port.
458 This is the virtual address u-boot jumps to when booting the Linux
466 menu "Bus options (PCI etc.)"
476 bool "Sun Logical Domains support"
479 Say Y here is you want to support virtual devices via
483 bool "Support for PCI and PS/2 keyboard/mouse"
485 Find out whether your system includes a PCI bus. PCI is the name of
486 a bus system, i.e. the way the CPU talks to the other stuff inside
487 your box. If you say Y here, the kernel will include drivers and
488 infrastructure code to support PCI bus devices.
490 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
491 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
492 All of these platforms are extremely obscure, so say N if unsure.
495 def_bool PCI if SPARC64
502 depends on PCI && SPARC32 && !SPARC_LEON
507 depends on PCI && SPARC_LEON
511 bool "GRPCI Host Bridge Support"
515 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
516 PCI host controller is typically found in GRLIB SPARC32/LEON
517 systems. The driver has one property (all_pci_errors) controlled
518 from the bootloader that makes the GRPCI to generate interrupts
519 on detected PCI Parity and System errors.
522 bool "GRPCI2 Host Bridge Support"
526 Say Y here to include the GRPCI2 Host Bridge Driver.
528 source "drivers/pci/Kconfig"
530 source "drivers/pcmcia/Kconfig"
532 config SUN_OPENPROMFS
533 tristate "Openprom tree appears in /proc/openprom"
535 If you say Y, the OpenPROM device tree will be available as a
536 virtual file system, which you can mount to /proc/openprom by "mount
537 -t openpromfs none /proc/openprom".
539 To compile the /proc/openprom support as a module, choose M here: the
540 module will be called openpromfs.
542 Only choose N if you know in advance that you will not need to modify
543 OpenPROM settings on the running system.
549 depends on SPARC64 && PCI
551 config SPARC64_PCI_MSI
554 depends on SPARC64_PCI && PCI_MSI
558 menu "Executable file formats"
560 source "fs/Kconfig.binfmt"
566 select COMPAT_BINFMT_ELF
568 select ARCH_WANT_OLD_COMPAT_IPC
569 select COMPAT_OLD_SIGACTION
571 config SYSVIPC_COMPAT
573 depends on COMPAT && SYSVIPC
580 source "drivers/Kconfig"
582 source "drivers/sbus/char/Kconfig"
586 source "arch/sparc/Kconfig.debug"
588 source "security/Kconfig"
590 source "crypto/Kconfig"