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
103 config ARCH_DMA_ADDR_T_64BIT
105 default y if ARCH_ATU
111 config STACKTRACE_SUPPORT
115 config LOCKDEP_SUPPORT
119 config ARCH_HIBERNATION_POSSIBLE
120 def_bool y if SPARC64
126 config HAVE_SETUP_PER_CPU_AREA
127 def_bool y if SPARC64
129 config NEED_PER_CPU_EMBED_FIRST_CHUNK
130 def_bool y if SPARC64
132 config NEED_PER_CPU_PAGE_FIRST_CHUNK
133 def_bool y if SPARC64
147 config NEED_DMA_MAP_STATE
150 config NEED_SG_DMA_LENGTH
153 config GENERIC_ISA_DMA
157 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
158 def_bool y if SPARC64
160 config PGTABLE_LEVELS
164 config ARCH_SUPPORTS_UPROBES
165 def_bool y if SPARC64
167 source "init/Kconfig"
169 source "kernel/Kconfig.freezer"
171 menu "Processor type and features"
174 bool "Symmetric multi-processing support"
176 This enables support for systems with more than one CPU. If you have
177 a system with only one CPU, say N. If you have a system with more
180 If you say N here, the kernel will run on uni- and multiprocessor
181 machines, but will use only one CPU of a multiprocessor machine. If
182 you say Y here, the kernel will run on many, but not all,
183 uniprocessor machines. On a uniprocessor machine, the kernel
184 will run faster if you say N here.
186 People using multiprocessor machines who say Y here should also say
187 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
188 Management" code will be disabled if you say Y here.
190 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
191 available at <http://www.tldp.org/docs.html#howto>.
193 If you don't know what to do here, say N.
196 int "Maximum number of CPUs"
198 range 2 32 if SPARC32
199 range 2 4096 if SPARC64
200 default 32 if SPARC32
201 default 4096 if SPARC64
203 source kernel/Kconfig.hz
205 config RWSEM_GENERIC_SPINLOCK
209 config RWSEM_XCHGADD_ALGORITHM
213 config GENERIC_HWEIGHT
217 config GENERIC_CALIBRATE_DELAY
221 config ARCH_MAY_HAVE_PC_FDC
225 config EMULATED_CMPXCHG
229 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
230 is emulated, and therefore it is not completely atomic.
236 depends on SPARC32 && SMP
241 depends on SPARC64 && SMP
244 bool "Support for early boot text console"
248 Say Y here to enable a faster early framebuffer boot console.
251 bool "Enable seccomp to safely compute untrusted bytecode"
252 depends on SPARC64 && PROC_FS
255 This kernel feature is useful for number crunching applications
256 that may need to compute untrusted bytecode during their
257 execution. By using pipes or other transports made available to
258 the process as file descriptors supporting the read/write
259 syscalls, it's possible to isolate those applications in
260 their own address space using seccomp. Once seccomp is
261 enabled via /proc/<pid>/seccomp, it cannot be disabled
262 and the task is only allowed to execute a few safe syscalls
263 defined by each seccomp mode.
265 If unsure, say Y. Only embedded should say N here.
268 bool "Support for hot-pluggable CPUs"
269 depends on SPARC64 && SMP
271 Say Y here to experiment with turning CPUs off and on. CPUs
272 can be controlled through /sys/devices/system/cpu/cpu#.
273 Say N if you want to disable CPU hotplug.
276 source "drivers/cpufreq/Kconfig"
280 tristate "UltraSPARC-III Memory Controller driver"
284 This adds a driver for the UltraSPARC-III memory controller.
285 Loading this driver allows exact mnemonic strings to be
286 printed in the event of a memory error, so that the faulty DIMM
287 on the motherboard can be matched to the error.
289 If in doubt, say Y, as this information can be very useful.
291 # Global things across all Sun machines.
292 config GENERIC_LOCKBREAK
295 depends on SPARC64 && SMP && PREEMPT
299 depends on SPARC64 && SMP
302 int "Maximum NUMA Nodes (as a power of 2)"
305 depends on NEED_MULTIPLE_NODES
307 Specify the maximum number of NUMA Nodes available on the target
308 system. Increases memory reserved to accommodate various tables.
310 # Some NUMA nodes have memory ranges that span
311 # other nodes. Even though a pfn is valid and
312 # between a node's start and end pfns, it may not
313 # reside on that node. See memmap_init_zone()
315 config NODES_SPAN_OTHER_NODES
317 depends on NEED_MULTIPLE_NODES
319 config ARCH_SELECT_MEMORY_MODEL
320 def_bool y if SPARC64
322 config ARCH_SPARSEMEM_ENABLE
323 def_bool y if SPARC64
324 select SPARSEMEM_VMEMMAP_ENABLE
326 config ARCH_SPARSEMEM_DEFAULT
327 def_bool y if SPARC64
329 config FORCE_MAX_ZONEORDER
330 int "Maximum zone order"
333 The kernel memory allocator divides physically contiguous memory
334 blocks into "zones", where each zone is a power of two number of
335 pages. This option selects the largest power of two that the kernel
336 keeps in the memory allocator. If you need to allocate very large
337 blocks of physically contiguous memory, then you may need to
340 This config option is actually maximum order plus one. For example,
341 a value of 13 means that the largest free memory block is 2^12 pages.
346 source "kernel/power/Kconfig"
350 bool "SMT (Hyperthreading) scheduler support"
351 depends on SPARC64 && SMP
354 SMT scheduler support improves the CPU scheduler's decision making
355 when dealing with SPARC cpus at a cost of slightly increased overhead
356 in some places. If unsure say N here.
359 bool "Multi-core scheduler support"
360 depends on SPARC64 && SMP
363 Multi-core scheduler support improves the CPU scheduler's decision
364 making when dealing with multi-core CPU chips at a cost of slightly
365 increased overhead in some places. If unsure say N here.
367 source "kernel/Kconfig.preempt"
370 bool "Default bootloader kernel arguments"
374 string "Initial kernel command string"
375 depends on CMDLINE_BOOL
376 default "console=ttyS0,9600 root=/dev/sda1"
378 Say Y here if you want to be able to pass default arguments to
379 the kernel. This will be overridden by the bootloader, if you
380 use one (such as SILO). This is most useful if you want to boot
381 a kernel from TFTP, and want default options to be available
382 with having them passed on the command line.
384 NOTE: This option WILL override the PROM bootargs setting!
390 Enable power management and CPU standby features on supported
394 tristate "Sun4m LED driver"
397 This driver toggles the front-panel LED on sun4m systems
398 in a user-specifiable manner. Its state can be probed
399 by reading /proc/led and its blinking mode can be changed
400 via writes to /proc/led
402 config SERIAL_CONSOLE
407 If you say Y here, it will be possible to use a serial port as the
408 system console (the system console is the device which receives all
409 kernel messages and warnings and which allows logins in single user
410 mode). This could be useful if some terminal or printer is connected
413 Even if you say Y here, the currently visible virtual console
414 (/dev/tty0) will still be used as the system console by default, but
415 you can alter that using a kernel command line option such as
416 "console=ttyS1". (Try "man bootparam" or see the documentation of
417 your boot loader (silo) about how to pass options to the kernel at
420 If you don't have a graphics card installed and you say Y here, the
421 kernel will automatically use the first serial line, /dev/ttyS0, as
427 bool "Sparc Leon processor family"
429 select USB_EHCI_BIG_ENDIAN_MMIO
430 select USB_EHCI_BIG_ENDIAN_DESC
432 If you say Y here if you are running on a SPARC-LEON processor.
433 The LEON processor is a synthesizable VHDL model of the
434 SPARC-v8 standard. LEON is part of the GRLIB collection of
435 IP cores that are distributed under GPL. GRLIB can be downloaded
436 from www.gaisler.com. You can download a sparc-linux cross-compilation
437 toolchain at www.gaisler.com.
440 menu "U-Boot options"
442 config UBOOT_LOAD_ADDR
443 hex "uImage Load Address"
446 U-Boot kernel load address, the address in physical address space
447 where u-boot will place the Linux kernel before booting it.
448 This address is normally the base address of main memory + 0x4000.
450 config UBOOT_FLASH_ADDR
451 hex "uImage.o Load Address"
454 Optional setting only affecting the uImage.o ELF-image used to
455 download the uImage file to the target using a ELF-loader other than
456 U-Boot. It may for example be used to download an uImage to FLASH with
457 the GRMON utility before even starting u-boot.
459 config UBOOT_ENTRY_ADDR
460 hex "uImage Entry Address"
463 Do not change this unless you know what you're doing. This is
464 hardcoded by the SPARC32 and LEON port.
466 This is the virtual address u-boot jumps to when booting the Linux
474 menu "Bus options (PCI etc.)"
484 bool "Sun Logical Domains support"
487 Say Y here is you want to support virtual devices via
491 bool "Support for PCI and PS/2 keyboard/mouse"
493 Find out whether your system includes a PCI bus. PCI is the name of
494 a bus system, i.e. the way the CPU talks to the other stuff inside
495 your box. If you say Y here, the kernel will include drivers and
496 infrastructure code to support PCI bus devices.
498 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
499 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
500 All of these platforms are extremely obscure, so say N if unsure.
503 def_bool PCI if SPARC64
510 depends on PCI && SPARC32 && !SPARC_LEON
515 depends on PCI && SPARC_LEON
519 bool "GRPCI Host Bridge Support"
523 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
524 PCI host controller is typically found in GRLIB SPARC32/LEON
525 systems. The driver has one property (all_pci_errors) controlled
526 from the bootloader that makes the GRPCI to generate interrupts
527 on detected PCI Parity and System errors.
530 bool "GRPCI2 Host Bridge Support"
534 Say Y here to include the GRPCI2 Host Bridge Driver.
536 source "drivers/pci/Kconfig"
538 source "drivers/pcmcia/Kconfig"
540 config SUN_OPENPROMFS
541 tristate "Openprom tree appears in /proc/openprom"
543 If you say Y, the OpenPROM device tree will be available as a
544 virtual file system, which you can mount to /proc/openprom by "mount
545 -t openpromfs none /proc/openprom".
547 To compile the /proc/openprom support as a module, choose M here: the
548 module will be called openpromfs.
550 Only choose N if you know in advance that you will not need to modify
551 OpenPROM settings on the running system.
557 depends on SPARC64 && PCI
559 config SPARC64_PCI_MSI
562 depends on SPARC64_PCI && PCI_MSI
566 menu "Executable file formats"
568 source "fs/Kconfig.binfmt"
574 select COMPAT_BINFMT_ELF
576 select ARCH_WANT_OLD_COMPAT_IPC
577 select COMPAT_OLD_SIGACTION
579 config SYSVIPC_COMPAT
581 depends on COMPAT && SYSVIPC
588 source "drivers/Kconfig"
590 source "drivers/sbus/char/Kconfig"
594 source "arch/sparc/Kconfig.debug"
596 source "security/Kconfig"
598 source "crypto/Kconfig"