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
19 select HAVE_ARCH_KGDB if !SMP || SPARC64
20 select HAVE_ARCH_TRACEHOOK
21 select ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select USE_GENERIC_SMP_HELPERS if SMP
37 select ARCH_SUPPORTS_MSI
38 select HAVE_FUNCTION_TRACER
39 select HAVE_FUNCTION_GRAPH_TRACER
40 select HAVE_FUNCTION_GRAPH_FP_TEST
41 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
42 select HAVE_KRETPROBES
44 select HAVE_RCU_TABLE_FREE if SMP
46 select HAVE_SYSCALL_WRAPPERS
47 select HAVE_DYNAMIC_FTRACE
48 select HAVE_FTRACE_MCOUNT_RECORD
49 select HAVE_SYSCALL_TRACEPOINTS
53 select RTC_DRV_STARFIRE
54 select HAVE_PERF_EVENTS
55 select PERF_USE_VMALLOC
56 select IRQ_PREFLOW_FASTEOI
57 select ARCH_HAVE_NMI_SAFE_CMPXCHG
61 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
62 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
64 # CONFIG_BITS can be used at source level to get 32/64 bits
70 config ARCH_USES_GETTIMEOFFSET
74 config GENERIC_CMOS_UPDATE
78 config GENERIC_CLOCKEVENTS
86 config STACKTRACE_SUPPORT
90 config LOCKDEP_SUPPORT
94 config HAVE_LATENCYTOP_SUPPORT
102 config HAVE_SETUP_PER_CPU_AREA
103 def_bool y if SPARC64
105 config NEED_PER_CPU_EMBED_FIRST_CHUNK
106 def_bool y if SPARC64
108 config NEED_PER_CPU_PAGE_FIRST_CHUNK
109 def_bool y if SPARC64
123 config NEED_DMA_MAP_STATE
126 config NEED_SG_DMA_LENGTH
129 config GENERIC_ISA_DMA
136 Generic GPIO API support
138 config ARCH_NO_VIRT_TO_BUS
141 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
142 def_bool y if SPARC64
144 source "init/Kconfig"
146 source "kernel/Kconfig.freezer"
148 menu "Processor type and features"
151 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
153 This enables support for systems with more than one CPU. If you have
154 a system with only one CPU, say N. If you have a system with more
157 If you say N here, the kernel will run on single and multiprocessor
158 machines, but will use only one CPU of a multiprocessor machine. If
159 you say Y here, the kernel will run on many, but not all,
160 singleprocessor machines. On a singleprocessor machine, the kernel
161 will run faster if you say N here.
163 People using multiprocessor machines who say Y here should also say
164 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
165 Management" code will be disabled if you say Y here.
167 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
168 available at <http://www.tldp.org/docs.html#howto>.
170 If you don't know what to do here, say N.
173 int "Maximum number of CPUs"
175 range 2 32 if SPARC32
176 range 2 1024 if SPARC64
177 default 32 if SPARC32
178 default 64 if SPARC64
180 source kernel/Kconfig.hz
182 config RWSEM_GENERIC_SPINLOCK
186 config RWSEM_XCHGADD_ALGORITHM
190 config GENERIC_HWEIGHT
192 default y if !ULTRA_HAS_POPULATION_COUNT
194 config GENERIC_CALIBRATE_DELAY
198 config ARCH_MAY_HAVE_PC_FDC
202 config EMULATED_CMPXCHG
206 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
207 is emulated, and therefore it is not completely atomic.
213 depends on SPARC32 && SMP
218 depends on SPARC64 && SMP
221 bool "Support for early boot text console"
225 Say Y here to enable a faster early framebuffer boot console.
228 prompt "Kernel page size" if SPARC64
229 default SPARC64_PAGE_SIZE_8KB
231 config SPARC64_PAGE_SIZE_8KB
234 This lets you select the page size of the kernel.
236 8KB and 64KB work quite well, since SPARC ELF sections
237 provide for up to 64KB alignment.
239 If you don't know what to do, choose 8KB.
241 config SPARC64_PAGE_SIZE_64KB
247 bool "Enable seccomp to safely compute untrusted bytecode"
248 depends on SPARC64 && PROC_FS
251 This kernel feature is useful for number crunching applications
252 that may need to compute untrusted bytecode during their
253 execution. By using pipes or other transports made available to
254 the process as file descriptors supporting the read/write
255 syscalls, it's possible to isolate those applications in
256 their own address space using seccomp. Once seccomp is
257 enabled via /proc/<pid>/seccomp, it cannot be disabled
258 and the task is only allowed to execute a few safe syscalls
259 defined by each seccomp mode.
261 If unsure, say Y. Only embedded should say N here.
264 bool "Support for hot-pluggable CPUs"
265 depends on SPARC64 && SMP
268 Say Y here to experiment with turning CPUs off and on. CPUs
269 can be controlled through /sys/devices/system/cpu/cpu#.
270 Say N if you want to disable CPU hotplug.
272 source "kernel/time/Kconfig"
275 source "drivers/cpufreq/Kconfig"
278 tristate "UltraSPARC-III CPU Frequency driver"
280 select CPU_FREQ_TABLE
282 This adds the CPUFreq driver for UltraSPARC-III processors.
284 For details, take a look at <file:Documentation/cpu-freq>.
289 tristate "UltraSPARC-IIe CPU Frequency driver"
291 select CPU_FREQ_TABLE
293 This adds the CPUFreq driver for UltraSPARC-IIe processors.
295 For details, take a look at <file:Documentation/cpu-freq>.
302 tristate "UltraSPARC-III Memory Controller driver"
306 This adds a driver for the UltraSPARC-III memory controller.
307 Loading this driver allows exact mnemonic strings to be
308 printed in the event of a memory error, so that the faulty DIMM
309 on the motherboard can be matched to the error.
311 If in doubt, say Y, as this information can be very useful.
313 # Global things across all Sun machines.
314 config GENERIC_LOCKBREAK
317 depends on SPARC64 && SMP && PREEMPT
320 prompt "SPARC64 Huge TLB Page Size"
321 depends on SPARC64 && HUGETLB_PAGE
322 default HUGETLB_PAGE_SIZE_4MB
324 config HUGETLB_PAGE_SIZE_4MB
327 config HUGETLB_PAGE_SIZE_512K
330 config HUGETLB_PAGE_SIZE_64K
331 depends on !SPARC64_PAGE_SIZE_64KB
338 depends on SPARC64 && SMP
343 depends on NEED_MULTIPLE_NODES
345 # Some NUMA nodes have memory ranges that span
346 # other nodes. Even though a pfn is valid and
347 # between a node's start and end pfns, it may not
348 # reside on that node. See memmap_init_zone()
350 config NODES_SPAN_OTHER_NODES
352 depends on NEED_MULTIPLE_NODES
354 config ARCH_POPULATES_NODE_MAP
355 def_bool y if SPARC64
357 config ARCH_SELECT_MEMORY_MODEL
358 def_bool y if SPARC64
360 config ARCH_SPARSEMEM_ENABLE
361 def_bool y if SPARC64
362 select SPARSEMEM_VMEMMAP_ENABLE
364 config ARCH_SPARSEMEM_DEFAULT
365 def_bool y if SPARC64
370 bool "SMT (Hyperthreading) scheduler support"
371 depends on SPARC64 && SMP
374 SMT scheduler support improves the CPU scheduler's decision making
375 when dealing with SPARC cpus at a cost of slightly increased overhead
376 in some places. If unsure say N here.
379 bool "Multi-core scheduler support"
380 depends on SPARC64 && SMP
383 Multi-core scheduler support improves the CPU scheduler's decision
384 making when dealing with multi-core CPU chips at a cost of slightly
385 increased overhead in some places. If unsure say N here.
388 source "kernel/Kconfig.preempt"
392 bool "Default bootloader kernel arguments"
396 string "Initial kernel command string"
397 depends on CMDLINE_BOOL
398 default "console=ttyS0,9600 root=/dev/sda1"
400 Say Y here if you want to be able to pass default arguments to
401 the kernel. This will be overridden by the bootloader, if you
402 use one (such as SILO). This is most useful if you want to boot
403 a kernel from TFTP, and want default options to be available
404 with having them passed on the command line.
406 NOTE: This option WILL override the PROM bootargs setting!
412 Enable power management and CPU standby features on supported
416 tristate "Sun4m LED driver"
419 This driver toggles the front-panel LED on sun4m systems
420 in a user-specifiable manner. Its state can be probed
421 by reading /proc/led and its blinking mode can be changed
422 via writes to /proc/led
424 config SERIAL_CONSOLE
429 If you say Y here, it will be possible to use a serial port as the
430 system console (the system console is the device which receives all
431 kernel messages and warnings and which allows logins in single user
432 mode). This could be useful if some terminal or printer is connected
435 Even if you say Y here, the currently visible virtual console
436 (/dev/tty0) will still be used as the system console by default, but
437 you can alter that using a kernel command line option such as
438 "console=ttyS1". (Try "man bootparam" or see the documentation of
439 your boot loader (silo) about how to pass options to the kernel at
442 If you don't have a graphics card installed and you say Y here, the
443 kernel will automatically use the first serial line, /dev/ttyS0, as
449 bool "Sparc Leon processor family"
452 If you say Y here if you are running on a SPARC-LEON processor.
453 The LEON processor is a synthesizable VHDL model of the
454 SPARC-v8 standard. LEON is part of the GRLIB collection of
455 IP cores that are distributed under GPL. GRLIB can be downloaded
456 from www.gaisler.com. You can download a sparc-linux cross-compilation
457 toolchain at www.gaisler.com.
460 menu "U-Boot options"
462 config UBOOT_LOAD_ADDR
463 hex "uImage Load Address"
466 U-Boot kernel load address, the address in physical address space
467 where u-boot will place the Linux kernel before booting it.
468 This address is normally the base address of main memory + 0x4000.
470 config UBOOT_FLASH_ADDR
471 hex "uImage.o Load Address"
474 Optional setting only affecting the uImage.o ELF-image used to
475 download the uImage file to the target using a ELF-loader other than
476 U-Boot. It may for example be used to download an uImage to FLASH with
477 the GRMON utility before even starting u-boot.
479 config UBOOT_ENTRY_ADDR
480 hex "uImage Entry Address"
483 Do not change this unless you know what you're doing. This is
484 hardcoded by the SPARC32 and LEON port.
486 This is the virtual address u-boot jumps to when booting the Linux
494 menu "Bus options (PCI etc.)"
504 bool "Sun Logical Domains support"
507 Say Y here is you want to support virtual devices via
511 bool "Support for PCI and PS/2 keyboard/mouse"
513 Find out whether your system includes a PCI bus. PCI is the name of
514 a bus system, i.e. the way the CPU talks to the other stuff inside
515 your box. If you say Y here, the kernel will include drivers and
516 infrastructure code to support PCI bus devices.
518 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
519 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
520 All of these platforms are extremely obscure, so say N if unsure.
523 def_bool PCI if SPARC64
530 depends on PCI && SPARC32 && !SPARC_LEON
535 depends on PCI && SPARC_LEON
539 bool "GRPCI2 Host Bridge Support"
543 Say Y here to include the GRPCI2 Host Bridge Driver.
545 source "drivers/pci/Kconfig"
547 source "drivers/pcmcia/Kconfig"
549 config SUN_OPENPROMFS
550 tristate "Openprom tree appears in /proc/openprom"
552 If you say Y, the OpenPROM device tree will be available as a
553 virtual file system, which you can mount to /proc/openprom by "mount
554 -t openpromfs none /proc/openprom".
556 To compile the /proc/openprom support as a module, choose M here: the
557 module will be called openpromfs.
559 Only choose N if you know in advance that you will not need to modify
560 OpenPROM settings on the running system.
566 depends on SPARC32 && PCI
571 depends on SPARC64 && PCI
575 menu "Executable file formats"
577 source "fs/Kconfig.binfmt"
583 select COMPAT_BINFMT_ELF
585 config SYSVIPC_COMPAT
587 depends on COMPAT && SYSVIPC
594 source "drivers/Kconfig"
596 source "drivers/sbus/char/Kconfig"
600 source "arch/sparc/Kconfig.debug"
602 source "security/Kconfig"
604 source "crypto/Kconfig"