Root/
Source at commit 0de2b2b3be81048189a32f7a3d3ba0ba9ec817b6 created 9 years 1 day ago. By Maarten ter Huurne, MIPS: JZ4740: Fixed value for round robin constant. | |
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1 | config 64BIT |
2 | bool "64-bit kernel" if ARCH = "sparc" |
3 | default ARCH = "sparc64" |
4 | help |
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. |
8 | |
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 |
11 | |
12 | config SPARC |
13 | bool |
14 | default y |
15 | select OF |
16 | select OF_PROMTREE |
17 | select HAVE_IDE |
18 | select HAVE_OPROFILE |
19 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
20 | select HAVE_ARCH_TRACEHOOK |
21 | select ARCH_WANT_OPTIONAL_GPIOLIB |
22 | select RTC_CLASS |
23 | select RTC_DRV_M48T59 |
24 | select HAVE_IRQ_WORK |
25 | select HAVE_DMA_ATTRS |
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 |
31 | select GENERIC_PCI_IOMAP |
32 | |
33 | config SPARC32 |
34 | def_bool !64BIT |
35 | select GENERIC_ATOMIC64 |
36 | select CLZ_TAB |
37 | |
38 | config SPARC64 |
39 | def_bool 64BIT |
40 | select ARCH_SUPPORTS_MSI |
41 | select HAVE_FUNCTION_TRACER |
42 | select HAVE_FUNCTION_GRAPH_TRACER |
43 | select HAVE_FUNCTION_GRAPH_FP_TEST |
44 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
45 | select HAVE_KRETPROBES |
46 | select HAVE_KPROBES |
47 | select HAVE_RCU_TABLE_FREE if SMP |
48 | select HAVE_MEMBLOCK |
49 | select HAVE_MEMBLOCK_NODE_MAP |
50 | select HAVE_SYSCALL_WRAPPERS |
51 | select HAVE_DYNAMIC_FTRACE |
52 | select HAVE_FTRACE_MCOUNT_RECORD |
53 | select HAVE_SYSCALL_TRACEPOINTS |
54 | select RTC_DRV_CMOS |
55 | select RTC_DRV_BQ4802 |
56 | select RTC_DRV_SUN4V |
57 | select RTC_DRV_STARFIRE |
58 | select HAVE_PERF_EVENTS |
59 | select PERF_USE_VMALLOC |
60 | select IRQ_PREFLOW_FASTEOI |
61 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
62 | select HAVE_C_RECORDMCOUNT |
63 | |
64 | config ARCH_DEFCONFIG |
65 | string |
66 | default "arch/sparc/configs/sparc32_defconfig" if SPARC32 |
67 | default "arch/sparc/configs/sparc64_defconfig" if SPARC64 |
68 | |
69 | # CONFIG_BITS can be used at source level to get 32/64 bits |
70 | config BITS |
71 | int |
72 | default 32 if SPARC32 |
73 | default 64 if SPARC64 |
74 | |
75 | config ARCH_USES_GETTIMEOFFSET |
76 | bool |
77 | default y if SPARC32 |
78 | |
79 | config GENERIC_CMOS_UPDATE |
80 | bool |
81 | default y |
82 | |
83 | config GENERIC_CLOCKEVENTS |
84 | bool |
85 | default y if SPARC64 |
86 | |
87 | config IOMMU_HELPER |
88 | bool |
89 | default y if SPARC64 |
90 | |
91 | config STACKTRACE_SUPPORT |
92 | bool |
93 | default y if SPARC64 |
94 | |
95 | config LOCKDEP_SUPPORT |
96 | bool |
97 | default y if SPARC64 |
98 | |
99 | config HAVE_LATENCYTOP_SUPPORT |
100 | bool |
101 | default y if SPARC64 |
102 | |
103 | config AUDIT_ARCH |
104 | bool |
105 | default y |
106 | |
107 | config HAVE_SETUP_PER_CPU_AREA |
108 | def_bool y if SPARC64 |
109 | |
110 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
111 | def_bool y if SPARC64 |
112 | |
113 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
114 | def_bool y if SPARC64 |
115 | |
116 | config MMU |
117 | bool |
118 | default y |
119 | |
120 | config HIGHMEM |
121 | bool |
122 | default y if SPARC32 |
123 | |
124 | config ZONE_DMA |
125 | bool |
126 | default y if SPARC32 |
127 | |
128 | config NEED_DMA_MAP_STATE |
129 | def_bool y |
130 | |
131 | config NEED_SG_DMA_LENGTH |
132 | def_bool y |
133 | |
134 | config GENERIC_ISA_DMA |
135 | bool |
136 | default y if SPARC32 |
137 | |
138 | config GENERIC_GPIO |
139 | bool |
140 | help |
141 | Generic GPIO API support |
142 | |
143 | config ARCH_NO_VIRT_TO_BUS |
144 | def_bool y |
145 | |
146 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
147 | def_bool y if SPARC64 |
148 | |
149 | source "init/Kconfig" |
150 | |
151 | source "kernel/Kconfig.freezer" |
152 | |
153 | menu "Processor type and features" |
154 | |
155 | config SMP |
156 | bool "Symmetric multi-processing support (does not work on sun4/sun4c)" |
157 | ---help--- |
158 | This enables support for systems with more than one CPU. If you have |
159 | a system with only one CPU, say N. If you have a system with more |
160 | than one CPU, say Y. |
161 | |
162 | If you say N here, the kernel will run on single and multiprocessor |
163 | machines, but will use only one CPU of a multiprocessor machine. If |
164 | you say Y here, the kernel will run on many, but not all, |
165 | singleprocessor machines. On a singleprocessor machine, the kernel |
166 | will run faster if you say N here. |
167 | |
168 | People using multiprocessor machines who say Y here should also say |
169 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power |
170 | Management" code will be disabled if you say Y here. |
171 | |
172 | See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO |
173 | available at <http://www.tldp.org/docs.html#howto>. |
174 | |
175 | If you don't know what to do here, say N. |
176 | |
177 | config NR_CPUS |
178 | int "Maximum number of CPUs" |
179 | depends on SMP |
180 | range 2 32 if SPARC32 |
181 | range 2 1024 if SPARC64 |
182 | default 32 if SPARC32 |
183 | default 64 if SPARC64 |
184 | |
185 | source kernel/Kconfig.hz |
186 | |
187 | config RWSEM_GENERIC_SPINLOCK |
188 | bool |
189 | default y if SPARC32 |
190 | |
191 | config RWSEM_XCHGADD_ALGORITHM |
192 | bool |
193 | default y if SPARC64 |
194 | |
195 | config GENERIC_HWEIGHT |
196 | bool |
197 | default y if !ULTRA_HAS_POPULATION_COUNT |
198 | |
199 | config GENERIC_CALIBRATE_DELAY |
200 | bool |
201 | default y |
202 | |
203 | config ARCH_MAY_HAVE_PC_FDC |
204 | bool |
205 | default y |
206 | |
207 | config EMULATED_CMPXCHG |
208 | bool |
209 | default y if SPARC32 |
210 | help |
211 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() |
212 | is emulated, and therefore it is not completely atomic. |
213 | |
214 | # Makefile helpers |
215 | config SPARC32_SMP |
216 | bool |
217 | default y |
218 | depends on SPARC32 && SMP |
219 | |
220 | config SPARC64_SMP |
221 | bool |
222 | default y |
223 | depends on SPARC64 && SMP |
224 | |
225 | config EARLYFB |
226 | bool "Support for early boot text console" |
227 | default y |
228 | depends on SPARC64 |
229 | help |
230 | Say Y here to enable a faster early framebuffer boot console. |
231 | |
232 | choice |
233 | prompt "Kernel page size" if SPARC64 |
234 | default SPARC64_PAGE_SIZE_8KB |
235 | |
236 | config SPARC64_PAGE_SIZE_8KB |
237 | bool "8KB" |
238 | help |
239 | This lets you select the page size of the kernel. |
240 | |
241 | 8KB and 64KB work quite well, since SPARC ELF sections |
242 | provide for up to 64KB alignment. |
243 | |
244 | If you don't know what to do, choose 8KB. |
245 | |
246 | config SPARC64_PAGE_SIZE_64KB |
247 | bool "64KB" |
248 | |
249 | endchoice |
250 | |
251 | config SECCOMP |
252 | bool "Enable seccomp to safely compute untrusted bytecode" |
253 | depends on SPARC64 && PROC_FS |
254 | default y |
255 | help |
256 | This kernel feature is useful for number crunching applications |
257 | that may need to compute untrusted bytecode during their |
258 | execution. By using pipes or other transports made available to |
259 | the process as file descriptors supporting the read/write |
260 | syscalls, it's possible to isolate those applications in |
261 | their own address space using seccomp. Once seccomp is |
262 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
263 | and the task is only allowed to execute a few safe syscalls |
264 | defined by each seccomp mode. |
265 | |
266 | If unsure, say Y. Only embedded should say N here. |
267 | |
268 | config HOTPLUG_CPU |
269 | bool "Support for hot-pluggable CPUs" |
270 | depends on SPARC64 && SMP |
271 | select HOTPLUG |
272 | help |
273 | Say Y here to experiment with turning CPUs off and on. CPUs |
274 | can be controlled through /sys/devices/system/cpu/cpu#. |
275 | Say N if you want to disable CPU hotplug. |
276 | |
277 | source "kernel/time/Kconfig" |
278 | |
279 | if SPARC64 |
280 | source "drivers/cpufreq/Kconfig" |
281 | |
282 | config US3_FREQ |
283 | tristate "UltraSPARC-III CPU Frequency driver" |
284 | depends on CPU_FREQ |
285 | select CPU_FREQ_TABLE |
286 | help |
287 | This adds the CPUFreq driver for UltraSPARC-III processors. |
288 | |
289 | For details, take a look at <file:Documentation/cpu-freq>. |
290 | |
291 | If in doubt, say N. |
292 | |
293 | config US2E_FREQ |
294 | tristate "UltraSPARC-IIe CPU Frequency driver" |
295 | depends on CPU_FREQ |
296 | select CPU_FREQ_TABLE |
297 | help |
298 | This adds the CPUFreq driver for UltraSPARC-IIe processors. |
299 | |
300 | For details, take a look at <file:Documentation/cpu-freq>. |
301 | |
302 | If in doubt, say N. |
303 | |
304 | endif |
305 | |
306 | config US3_MC |
307 | tristate "UltraSPARC-III Memory Controller driver" |
308 | depends on SPARC64 |
309 | default y |
310 | help |
311 | This adds a driver for the UltraSPARC-III memory controller. |
312 | Loading this driver allows exact mnemonic strings to be |
313 | printed in the event of a memory error, so that the faulty DIMM |
314 | on the motherboard can be matched to the error. |
315 | |
316 | If in doubt, say Y, as this information can be very useful. |
317 | |
318 | # Global things across all Sun machines. |
319 | config GENERIC_LOCKBREAK |
320 | bool |
321 | default y |
322 | depends on SPARC64 && SMP && PREEMPT |
323 | |
324 | choice |
325 | prompt "SPARC64 Huge TLB Page Size" |
326 | depends on SPARC64 && HUGETLB_PAGE |
327 | default HUGETLB_PAGE_SIZE_4MB |
328 | |
329 | config HUGETLB_PAGE_SIZE_4MB |
330 | bool "4MB" |
331 | |
332 | config HUGETLB_PAGE_SIZE_512K |
333 | bool "512K" |
334 | |
335 | config HUGETLB_PAGE_SIZE_64K |
336 | depends on !SPARC64_PAGE_SIZE_64KB |
337 | bool "64K" |
338 | |
339 | endchoice |
340 | |
341 | config NUMA |
342 | bool "NUMA support" |
343 | depends on SPARC64 && SMP |
344 | |
345 | config NODES_SHIFT |
346 | int |
347 | default "4" |
348 | depends on NEED_MULTIPLE_NODES |
349 | |
350 | # Some NUMA nodes have memory ranges that span |
351 | # other nodes. Even though a pfn is valid and |
352 | # between a node's start and end pfns, it may not |
353 | # reside on that node. See memmap_init_zone() |
354 | # for details. |
355 | config NODES_SPAN_OTHER_NODES |
356 | def_bool y |
357 | depends on NEED_MULTIPLE_NODES |
358 | |
359 | config ARCH_SELECT_MEMORY_MODEL |
360 | def_bool y if SPARC64 |
361 | |
362 | config ARCH_SPARSEMEM_ENABLE |
363 | def_bool y if SPARC64 |
364 | select SPARSEMEM_VMEMMAP_ENABLE |
365 | |
366 | config ARCH_SPARSEMEM_DEFAULT |
367 | def_bool y if SPARC64 |
368 | |
369 | source "mm/Kconfig" |
370 | |
371 | config SCHED_SMT |
372 | bool "SMT (Hyperthreading) scheduler support" |
373 | depends on SPARC64 && SMP |
374 | default y |
375 | help |
376 | SMT scheduler support improves the CPU scheduler's decision making |
377 | when dealing with SPARC cpus at a cost of slightly increased overhead |
378 | in some places. If unsure say N here. |
379 | |
380 | config SCHED_MC |
381 | bool "Multi-core scheduler support" |
382 | depends on SPARC64 && SMP |
383 | default y |
384 | help |
385 | Multi-core scheduler support improves the CPU scheduler's decision |
386 | making when dealing with multi-core CPU chips at a cost of slightly |
387 | increased overhead in some places. If unsure say N here. |
388 | |
389 | source "kernel/Kconfig.preempt" |
390 | |
391 | config CMDLINE_BOOL |
392 | bool "Default bootloader kernel arguments" |
393 | depends on SPARC64 |
394 | |
395 | config CMDLINE |
396 | string "Initial kernel command string" |
397 | depends on CMDLINE_BOOL |
398 | default "console=ttyS0,9600 root=/dev/sda1" |
399 | help |
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. |
405 | |
406 | NOTE: This option WILL override the PROM bootargs setting! |
407 | |
408 | config SUN_PM |
409 | bool |
410 | default y if SPARC32 |
411 | help |
412 | Enable power management and CPU standby features on supported |
413 | SPARC platforms. |
414 | |
415 | config SPARC_LED |
416 | tristate "Sun4m LED driver" |
417 | depends on SPARC32 |
418 | help |
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 |
423 | |
424 | config SERIAL_CONSOLE |
425 | bool |
426 | depends on SPARC32 |
427 | default y |
428 | ---help--- |
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 |
433 | to that serial port. |
434 | |
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 |
440 | boot time.) |
441 | |
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 |
444 | system console. |
445 | |
446 | If unsure, say N. |
447 | |
448 | config SPARC_LEON |
449 | bool "Sparc Leon processor family" |
450 | depends on SPARC32 |
451 | ---help--- |
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. |
458 | |
459 | if SPARC_LEON |
460 | menu "U-Boot options" |
461 | |
462 | config UBOOT_LOAD_ADDR |
463 | hex "uImage Load Address" |
464 | default 0x40004000 |
465 | ---help--- |
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. |
469 | |
470 | config UBOOT_FLASH_ADDR |
471 | hex "uImage.o Load Address" |
472 | default 0x00080000 |
473 | ---help--- |
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. |
478 | |
479 | config UBOOT_ENTRY_ADDR |
480 | hex "uImage Entry Address" |
481 | default 0xf0004000 |
482 | ---help--- |
483 | Do not change this unless you know what you're doing. This is |
484 | hardcoded by the SPARC32 and LEON port. |
485 | |
486 | This is the virtual address u-boot jumps to when booting the Linux |
487 | Kernel. |
488 | |
489 | endmenu |
490 | endif |
491 | |
492 | endmenu |
493 | |
494 | menu "Bus options (PCI etc.)" |
495 | config SBUS |
496 | bool |
497 | default y |
498 | |
499 | config SBUSCHAR |
500 | bool |
501 | default y |
502 | |
503 | config SUN_LDOMS |
504 | bool "Sun Logical Domains support" |
505 | depends on SPARC64 |
506 | help |
507 | Say Y here is you want to support virtual devices via |
508 | Logical Domains. |
509 | |
510 | config PCI |
511 | bool "Support for PCI and PS/2 keyboard/mouse" |
512 | help |
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. |
517 | |
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. |
521 | |
522 | config PCI_DOMAINS |
523 | def_bool PCI if SPARC64 |
524 | |
525 | config PCI_SYSCALL |
526 | def_bool PCI |
527 | |
528 | config PCIC_PCI |
529 | bool |
530 | depends on PCI && SPARC32 && !SPARC_LEON |
531 | default y |
532 | |
533 | config LEON_PCI |
534 | bool |
535 | depends on PCI && SPARC_LEON |
536 | default y |
537 | |
538 | config GRPCI2 |
539 | bool "GRPCI2 Host Bridge Support" |
540 | depends on LEON_PCI |
541 | default y |
542 | help |
543 | Say Y here to include the GRPCI2 Host Bridge Driver. |
544 | |
545 | source "drivers/pci/Kconfig" |
546 | |
547 | source "drivers/pcmcia/Kconfig" |
548 | |
549 | config SUN_OPENPROMFS |
550 | tristate "Openprom tree appears in /proc/openprom" |
551 | help |
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". |
555 | |
556 | To compile the /proc/openprom support as a module, choose M here: the |
557 | module will be called openpromfs. |
558 | |
559 | Only choose N if you know in advance that you will not need to modify |
560 | OpenPROM settings on the running system. |
561 | |
562 | # Makefile helper |
563 | config SPARC64_PCI |
564 | bool |
565 | default y |
566 | depends on SPARC64 && PCI |
567 | |
568 | endmenu |
569 | |
570 | menu "Executable file formats" |
571 | |
572 | source "fs/Kconfig.binfmt" |
573 | |
574 | config COMPAT |
575 | bool |
576 | depends on SPARC64 |
577 | default y |
578 | select COMPAT_BINFMT_ELF |
579 | |
580 | config SYSVIPC_COMPAT |
581 | bool |
582 | depends on COMPAT && SYSVIPC |
583 | default y |
584 | |
585 | endmenu |
586 | |
587 | source "net/Kconfig" |
588 | |
589 | source "drivers/Kconfig" |
590 | |
591 | source "drivers/sbus/char/Kconfig" |
592 | |
593 | source "fs/Kconfig" |
594 | |
595 | source "arch/sparc/Kconfig.debug" |
596 | |
597 | source "security/Kconfig" |
598 | |
599 | source "crypto/Kconfig" |
600 | |
601 | source "lib/Kconfig" |
602 |
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