1 # SPDX-License-Identifier: GPL-2.0-only
2 config 64BIT
3 bool "64-bit kernel" if "$(ARCH)" = "s
4 default "$(ARCH)" = "sparc64"
5 help
6 SPARC is a family of RISC microproce
7 Sun Microsystems, incorporated. The
8 workstations and clones.
9
10 Say yes to build a 64-bit kernel - f
11 Say no to build a 32-bit kernel - fo
12
13 config SPARC
14 bool
15 default y
16 select ARCH_HAS_CPU_CACHE_ALIASING
17 select ARCH_HAS_DMA_OPS
18 select ARCH_MIGHT_HAVE_PC_PARPORT if S
19 select ARCH_MIGHT_HAVE_PC_SERIO
20 select OF
21 select OF_PROMTREE
22 select HAVE_ASM_MODVERSIONS
23 select HAVE_ARCH_KGDB if !SMP || SPARC
24 select HAVE_ARCH_TRACEHOOK
25 select HAVE_ARCH_SECCOMP if SPARC64
26 select HAVE_EXIT_THREAD
27 select HAVE_PCI
28 select SYSCTL_EXCEPTION_TRACE
29 select RTC_CLASS
30 select RTC_DRV_M48T59
31 select RTC_SYSTOHC
32 select HAVE_ARCH_JUMP_LABEL if SPARC64
33 select GENERIC_IRQ_SHOW
34 select ARCH_WANT_IPC_PARSE_VERSION
35 select GENERIC_PCI_IOMAP
36 select HAS_IOPORT
37 select HAVE_HARDLOCKUP_DETECTOR_SPARC6
38 select HAVE_CBPF_JIT if SPARC32
39 select HAVE_EBPF_JIT if SPARC64
40 select HAVE_DEBUG_BUGVERBOSE
41 select GENERIC_SMP_IDLE_THREAD
42 select MODULES_USE_ELF_RELA
43 select PCI_SYSCALL if PCI
44 select PCI_MSI_ARCH_FALLBACKS if PCI_M
45 select ODD_RT_SIGACTION
46 select OLD_SIGSUSPEND
47 select CPU_NO_EFFICIENT_FFS
48 select LOCKDEP_SMALL if LOCKDEP
49 select NEED_DMA_MAP_STATE
50 select NEED_SG_DMA_LENGTH
51 select TRACE_IRQFLAGS_SUPPORT
52
53 config SPARC32
54 def_bool !64BIT
55 select ARCH_32BIT_OFF_T
56 select ARCH_HAS_CPU_FINALIZE_INIT if !
57 select ARCH_HAS_SYNC_DMA_FOR_CPU
58 select CLZ_TAB
59 select DMA_DIRECT_REMAP
60 select GENERIC_ATOMIC64
61 select GENERIC_LIB_CMPDI2
62 select GENERIC_LIB_UCMPDI2
63 select HAVE_UID16
64 select HAVE_PAGE_SIZE_4KB
65 select LOCK_MM_AND_FIND_VMA
66 select OLD_SIGACTION
67 select ZONE_DMA
68
69 config SPARC64
70 def_bool 64BIT
71 select ALTERNATE_USER_ADDRESS_SPACE
72 select HAVE_FUNCTION_TRACER
73 select HAVE_FUNCTION_GRAPH_TRACER
74 select HAVE_KRETPROBES
75 select HAVE_KPROBES
76 select MMU_GATHER_RCU_TABLE_FREE if SM
77 select MMU_GATHER_MERGE_VMAS
78 select MMU_GATHER_NO_FLUSH_CACHE
79 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
80 select HAVE_DYNAMIC_FTRACE
81 select HAVE_FTRACE_MCOUNT_RECORD
82 select HAVE_PAGE_SIZE_8KB
83 select HAVE_SYSCALL_TRACEPOINTS
84 select HAVE_CONTEXT_TRACKING_USER
85 select HAVE_TIF_NOHZ
86 select HAVE_DEBUG_KMEMLEAK
87 select IOMMU_HELPER
88 select SPARSE_IRQ
89 select RTC_DRV_CMOS
90 select RTC_DRV_BQ4802
91 select RTC_DRV_SUN4V
92 select RTC_DRV_STARFIRE
93 select HAVE_PERF_EVENTS
94 select PERF_USE_VMALLOC
95 select ARCH_HAVE_NMI_SAFE_CMPXCHG
96 select HAVE_C_RECORDMCOUNT
97 select HAVE_ARCH_AUDITSYSCALL
98 select ARCH_SUPPORTS_ATOMIC_RMW
99 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
100 select HAVE_NMI
101 select HAVE_REGS_AND_STACK_ACCESS_API
102 select ARCH_USE_QUEUED_RWLOCKS
103 select ARCH_USE_QUEUED_SPINLOCKS
104 select GENERIC_TIME_VSYSCALL
105 select ARCH_CLOCKSOURCE_DATA
106 select ARCH_HAS_PTE_SPECIAL
107 select PCI_DOMAINS if PCI
108 select ARCH_HAS_GIGANTIC_PAGE
109 select HAVE_SOFTIRQ_ON_OWN_STACK
110 select HAVE_SETUP_PER_CPU_AREA
111 select NEED_PER_CPU_EMBED_FIRST_CHUNK
112 select NEED_PER_CPU_PAGE_FIRST_CHUNK
113
114 config ARCH_PROC_KCORE_TEXT
115 def_bool y
116
117 config CPU_BIG_ENDIAN
118 def_bool y
119
120 config STACKTRACE_SUPPORT
121 bool
122 default y if SPARC64
123
124 config LOCKDEP_SUPPORT
125 bool
126 default y if SPARC64
127
128 config ARCH_HIBERNATION_POSSIBLE
129 def_bool y if SPARC64
130
131 config AUDIT_ARCH
132 bool
133 default y
134
135 config MMU
136 bool
137 default y
138
139 config HIGHMEM
140 bool
141 default y if SPARC32
142 select KMAP_LOCAL
143
144 config PGTABLE_LEVELS
145 default 4 if 64BIT
146 default 3
147
148 config ARCH_SUPPORTS_UPROBES
149 def_bool y if SPARC64
150
151 menu "Processor type and features"
152
153 config SMP
154 bool "Symmetric multi-processing suppo
155 help
156 This enables support for systems wit
157 a system with only one CPU, say N. I
158 than one CPU, say Y.
159
160 If you say N here, the kernel will r
161 machines, but will use only one CPU
162 you say Y here, the kernel will run
163 uniprocessor machines. On a uniproce
164 will run faster if you say N here.
165
166 People using multiprocessor machines
167 Y to "Enhanced Real Time Clock Suppo
168 Management" code will be disabled if
169
170 See also <file:Documentation/admin-g
171 available at <https://www.tldp.org/d
172
173 If you don't know what to do here, s
174
175 config NR_CPUS
176 int "Maximum number of CPUs"
177 depends on SMP
178 range 2 32 if SPARC32
179 range 2 4096 if SPARC64
180 default 32 if SPARC32
181 default 4096 if SPARC64
182
183 source "kernel/Kconfig.hz"
184
185 config GENERIC_HWEIGHT
186 bool
187 default y
188
189 config GENERIC_CALIBRATE_DELAY
190 bool
191 default y
192
193 config ARCH_MAY_HAVE_PC_FDC
194 bool
195 default y
196
197 config EMULATED_CMPXCHG
198 bool
199 default y if SPARC32
200 help
201 Sparc32 does not have a CAS instruct
202 is emulated, and therefore it is not
203
204 # Makefile helpers
205 config SPARC32_SMP
206 bool
207 default y
208 depends on SPARC32 && SMP
209
210 config SPARC64_SMP
211 bool
212 default y
213 depends on SPARC64 && SMP
214
215 config EARLYFB
216 bool "Support for early boot text cons
217 default y
218 depends on SPARC64
219 select FONT_SUN8x16
220 select FONT_SUPPORT
221 help
222 Say Y here to enable a faster early
223
224 config HOTPLUG_CPU
225 bool "Support for hot-pluggable CPUs"
226 depends on SPARC64 && SMP
227 help
228 Say Y here to experiment with turnin
229 can be controlled through /sys/devic
230 Say N if you want to disable CPU hot
231
232 if SPARC64
233 source "drivers/cpufreq/Kconfig"
234 endif
235
236 config US3_MC
237 tristate "UltraSPARC-III Memory Contro
238 depends on SPARC64
239 default y
240 help
241 This adds a driver for the UltraSPAR
242 Loading this driver allows exact mne
243 printed in the event of a memory err
244 on the motherboard can be matched to
245
246 If in doubt, say Y, as this informat
247
248 # Global things across all Sun machines.
249 config GENERIC_LOCKBREAK
250 bool
251 default y
252 depends on SPARC64 && SMP && PREEMPTIO
253
254 config NUMA
255 bool "NUMA support"
256 depends on SPARC64 && SMP
257
258 config NODES_SHIFT
259 int "Maximum NUMA Nodes (as a power of
260 range 4 5 if SPARC64
261 default "5"
262 depends on NUMA
263 help
264 Specify the maximum number of NUMA N
265 system. Increases memory reserved t
266
267 config ARCH_SPARSEMEM_ENABLE
268 def_bool y if SPARC64
269 select SPARSEMEM_VMEMMAP_ENABLE
270
271 config ARCH_SPARSEMEM_DEFAULT
272 def_bool y if SPARC64
273
274 config ARCH_FORCE_MAX_ORDER
275 int "Order of maximal physically conti
276 default "12"
277 help
278 The kernel page allocator limits the
279 contiguous allocations. The limit is
280 defines the maximal power of two of
281 allocated as a single contiguous blo
282 overriding the default setting when
283 large blocks of physically contiguou
284
285 Don't change if unsure.
286
287 if SPARC64 || COMPILE_TEST
288 source "kernel/power/Kconfig"
289 endif
290
291 config SCHED_SMT
292 bool "SMT (Hyperthreading) scheduler s
293 depends on SPARC64 && SMP
294 default y
295 help
296 SMT scheduler support improves the C
297 when dealing with SPARC cpus at a co
298 in some places. If unsure say N here
299
300 config SCHED_MC
301 bool "Multi-core scheduler support"
302 depends on SPARC64 && SMP
303 default y
304 help
305 Multi-core scheduler support improve
306 making when dealing with multi-core
307 increased overhead in some places. I
308
309 config CMDLINE_BOOL
310 bool "Default bootloader kernel argume
311 depends on SPARC64
312
313 config CMDLINE
314 string "Initial kernel command string"
315 depends on CMDLINE_BOOL
316 default "console=ttyS0,9600 root=/dev/
317 help
318 Say Y here if you want to be able to
319 the kernel. This will be overridden
320 use one (such as SILO). This is most
321 a kernel from TFTP, and want default
322 with having them passed on the comma
323
324 NOTE: This option WILL override the
325
326 config SUN_PM
327 bool
328 default y if SPARC32
329 help
330 Enable power management and CPU stan
331 SPARC platforms.
332
333 config SPARC_LED
334 tristate "Sun4m LED driver"
335 depends on SPARC32
336 help
337 This driver toggles the front-panel
338 in a user-specifiable manner. Its s
339 by reading /proc/led and its blinkin
340 via writes to /proc/led
341
342 config SERIAL_CONSOLE
343 bool
344 depends on SPARC32
345 default y
346 help
347 If you say Y here, it will be possib
348 system console (the system console i
349 kernel messages and warnings and whi
350 mode). This could be useful if some
351 to that serial port.
352
353 Even if you say Y here, the currentl
354 (/dev/tty0) will still be used as th
355 you can alter that using a kernel co
356 "console=ttyS1". (Try "man bootparam
357 your boot loader (silo) about how to
358 boot time.)
359
360 If you don't have a graphics card in
361 kernel will automatically use the fi
362 system console.
363
364 If unsure, say N.
365
366 config SPARC_LEON
367 bool "Sparc Leon processor family"
368 depends on SPARC32
369 select USB_EHCI_BIG_ENDIAN_MMIO
370 select USB_EHCI_BIG_ENDIAN_DESC
371 select USB_UHCI_BIG_ENDIAN_MMIO
372 select USB_UHCI_BIG_ENDIAN_DESC
373 help
374 If you say Y here if you are running
375 The LEON processor is a synthesizabl
376 SPARC-v8 standard. LEON is part of
377 IP cores that are distributed under
378 from www.gaisler.com. You can downlo
379 toolchain at www.gaisler.com.
380
381 if SPARC_LEON
382 menu "U-Boot options"
383
384 config UBOOT_LOAD_ADDR
385 hex "uImage Load Address"
386 default 0x40004000
387 help
388 U-Boot kernel load address, the addre
389 where u-boot will place the Linux ker
390 This address is normally the base add
391
392 config UBOOT_FLASH_ADDR
393 hex "uImage.o Load Address"
394 default 0x00080000
395 help
396 Optional setting only affecting the u
397 download the uImage file to the targe
398 U-Boot. It may for example be used to
399 the GRMON utility before even startin
400
401 config UBOOT_ENTRY_ADDR
402 hex "uImage Entry Address"
403 default 0xf0004000
404 help
405 Do not change this unless you know wh
406 hardcoded by the SPARC32 and LEON por
407
408 This is the virtual address u-boot ju
409 Kernel.
410
411 endmenu
412 endif
413
414 endmenu
415
416 menu "Bus options (PCI etc.)"
417 config SBUS
418 bool
419 default y
420
421 config SBUSCHAR
422 bool
423 default y
424
425 config SUN_LDOMS
426 bool "Sun Logical Domains support"
427 depends on SPARC64
428 help
429 Say Y here is you want to support vi
430 Logical Domains.
431
432 config PCIC_PCI
433 bool
434 depends on PCI && SPARC32 && !SPARC_LE
435 default y
436
437 config LEON_PCI
438 bool
439 depends on PCI && SPARC_LEON
440 default y
441
442 config SPARC_GRPCI1
443 bool "GRPCI Host Bridge Support"
444 depends on LEON_PCI
445 default y
446 help
447 Say Y here to include the GRPCI Host
448 PCI host controller is typically fou
449 systems. The driver has one property
450 from the bootloader that makes the G
451 on detected PCI Parity and System er
452
453 config SPARC_GRPCI2
454 bool "GRPCI2 Host Bridge Support"
455 depends on LEON_PCI
456 default y
457 help
458 Say Y here to include the GRPCI2 Hos
459
460 config SUN_OPENPROMFS
461 tristate "Openprom tree appears in /pr
462 help
463 If you say Y, the OpenPROM device tr
464 virtual file system, which you can m
465 -t openpromfs none /proc/openprom".
466
467 To compile the /proc/openprom suppor
468 module will be called openpromfs.
469
470 Only choose N if you know in advance
471 OpenPROM settings on the running sys
472
473 # Makefile helpers
474 config SPARC64_PCI
475 bool
476 default y
477 depends on SPARC64 && PCI
478
479 config SPARC64_PCI_MSI
480 bool
481 default y
482 depends on SPARC64_PCI && PCI_MSI
483
484 endmenu
485
486 config COMPAT
487 bool
488 depends on SPARC64
489 default y
490 select HAVE_UID16
491 select ARCH_WANT_OLD_COMPAT_IPC
492 select COMPAT_OLD_SIGACTION
493
494 source "drivers/sbus/char/Kconfig"
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