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
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 HAVE_ARCH_HARDENED_USERCOPY
46 select PROVE_LOCKING_SMALL if PROVE_LOCKING
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
87 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
88 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
90 config ARCH_PROC_KCORE_TEXT
97 config ARCH_DMA_ADDR_T_64BIT
105 config STACKTRACE_SUPPORT
109 config LOCKDEP_SUPPORT
113 config ARCH_HIBERNATION_POSSIBLE
114 def_bool y if SPARC64
120 config HAVE_SETUP_PER_CPU_AREA
121 def_bool y if SPARC64
123 config NEED_PER_CPU_EMBED_FIRST_CHUNK
124 def_bool y if SPARC64
126 config NEED_PER_CPU_PAGE_FIRST_CHUNK
127 def_bool y if SPARC64
141 config NEED_DMA_MAP_STATE
144 config NEED_SG_DMA_LENGTH
147 config GENERIC_ISA_DMA
151 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
152 def_bool y if SPARC64
154 config PGTABLE_LEVELS
158 config ARCH_SUPPORTS_UPROBES
159 def_bool y if SPARC64
161 source "init/Kconfig"
163 source "kernel/Kconfig.freezer"
165 menu "Processor type and features"
168 bool "Symmetric multi-processing support"
170 This enables support for systems with more than one CPU. If you have
171 a system with only one CPU, say N. If you have a system with more
174 If you say N here, the kernel will run on uni- and multiprocessor
175 machines, but will use only one CPU of a multiprocessor machine. If
176 you say Y here, the kernel will run on many, but not all,
177 uniprocessor machines. On a uniprocessor machine, the kernel
178 will run faster if you say N here.
180 People using multiprocessor machines who say Y here should also say
181 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
182 Management" code will be disabled if you say Y here.
184 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
185 available at <http://www.tldp.org/docs.html#howto>.
187 If you don't know what to do here, say N.
190 int "Maximum number of CPUs"
192 range 2 32 if SPARC32
193 range 2 1024 if SPARC64
194 default 32 if SPARC32
195 default 64 if SPARC64
197 source kernel/Kconfig.hz
199 config RWSEM_GENERIC_SPINLOCK
203 config RWSEM_XCHGADD_ALGORITHM
207 config GENERIC_HWEIGHT
211 config GENERIC_CALIBRATE_DELAY
215 config ARCH_MAY_HAVE_PC_FDC
219 config EMULATED_CMPXCHG
223 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
224 is emulated, and therefore it is not completely atomic.
230 depends on SPARC32 && SMP
235 depends on SPARC64 && SMP
238 bool "Support for early boot text console"
242 Say Y here to enable a faster early framebuffer boot console.
245 bool "Enable seccomp to safely compute untrusted bytecode"
246 depends on SPARC64 && PROC_FS
249 This kernel feature is useful for number crunching applications
250 that may need to compute untrusted bytecode during their
251 execution. By using pipes or other transports made available to
252 the process as file descriptors supporting the read/write
253 syscalls, it's possible to isolate those applications in
254 their own address space using seccomp. Once seccomp is
255 enabled via /proc/<pid>/seccomp, it cannot be disabled
256 and the task is only allowed to execute a few safe syscalls
257 defined by each seccomp mode.
259 If unsure, say Y. Only embedded should say N here.
262 bool "Support for hot-pluggable CPUs"
263 depends on SPARC64 && SMP
265 Say Y here to experiment with turning CPUs off and on. CPUs
266 can be controlled through /sys/devices/system/cpu/cpu#.
267 Say N if you want to disable CPU hotplug.
270 source "drivers/cpufreq/Kconfig"
274 tristate "UltraSPARC-III Memory Controller driver"
278 This adds a driver for the UltraSPARC-III memory controller.
279 Loading this driver allows exact mnemonic strings to be
280 printed in the event of a memory error, so that the faulty DIMM
281 on the motherboard can be matched to the error.
283 If in doubt, say Y, as this information can be very useful.
285 # Global things across all Sun machines.
286 config GENERIC_LOCKBREAK
289 depends on SPARC64 && SMP && PREEMPT
293 depends on SPARC64 && SMP
298 depends on NEED_MULTIPLE_NODES
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
422 If you say Y here if you are running on a SPARC-LEON processor.
423 The LEON processor is a synthesizable VHDL model of the
424 SPARC-v8 standard. LEON is part of the GRLIB collection of
425 IP cores that are distributed under GPL. GRLIB can be downloaded
426 from www.gaisler.com. You can download a sparc-linux cross-compilation
427 toolchain at www.gaisler.com.
430 menu "U-Boot options"
432 config UBOOT_LOAD_ADDR
433 hex "uImage Load Address"
436 U-Boot kernel load address, the address in physical address space
437 where u-boot will place the Linux kernel before booting it.
438 This address is normally the base address of main memory + 0x4000.
440 config UBOOT_FLASH_ADDR
441 hex "uImage.o Load Address"
444 Optional setting only affecting the uImage.o ELF-image used to
445 download the uImage file to the target using a ELF-loader other than
446 U-Boot. It may for example be used to download an uImage to FLASH with
447 the GRMON utility before even starting u-boot.
449 config UBOOT_ENTRY_ADDR
450 hex "uImage Entry Address"
453 Do not change this unless you know what you're doing. This is
454 hardcoded by the SPARC32 and LEON port.
456 This is the virtual address u-boot jumps to when booting the Linux
464 menu "Bus options (PCI etc.)"
474 bool "Sun Logical Domains support"
477 Say Y here is you want to support virtual devices via
481 bool "Support for PCI and PS/2 keyboard/mouse"
483 Find out whether your system includes a PCI bus. PCI is the name of
484 a bus system, i.e. the way the CPU talks to the other stuff inside
485 your box. If you say Y here, the kernel will include drivers and
486 infrastructure code to support PCI bus devices.
488 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
489 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
490 All of these platforms are extremely obscure, so say N if unsure.
493 def_bool PCI if SPARC64
500 depends on PCI && SPARC32 && !SPARC_LEON
505 depends on PCI && SPARC_LEON
509 bool "GRPCI Host Bridge Support"
513 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
514 PCI host controller is typically found in GRLIB SPARC32/LEON
515 systems. The driver has one property (all_pci_errors) controlled
516 from the bootloader that makes the GRPCI to generate interrupts
517 on detected PCI Parity and System errors.
520 bool "GRPCI2 Host Bridge Support"
524 Say Y here to include the GRPCI2 Host Bridge Driver.
526 source "drivers/pci/Kconfig"
528 source "drivers/pcmcia/Kconfig"
530 config SUN_OPENPROMFS
531 tristate "Openprom tree appears in /proc/openprom"
533 If you say Y, the OpenPROM device tree will be available as a
534 virtual file system, which you can mount to /proc/openprom by "mount
535 -t openpromfs none /proc/openprom".
537 To compile the /proc/openprom support as a module, choose M here: the
538 module will be called openpromfs.
540 Only choose N if you know in advance that you will not need to modify
541 OpenPROM settings on the running system.
547 depends on SPARC64 && PCI
549 config SPARC64_PCI_MSI
552 depends on SPARC64_PCI && PCI_MSI
556 menu "Executable file formats"
558 source "fs/Kconfig.binfmt"
564 select COMPAT_BINFMT_ELF
566 select ARCH_WANT_OLD_COMPAT_IPC
567 select COMPAT_OLD_SIGACTION
569 config SYSVIPC_COMPAT
571 depends on COMPAT && SYSVIPC
575 def_bool y if COMPAT && KEYS
581 source "drivers/Kconfig"
583 source "drivers/sbus/char/Kconfig"
587 source "arch/sparc/Kconfig.debug"
589 source "security/Kconfig"
591 source "crypto/Kconfig"