Commit | Line | Data |
---|---|---|
ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
761b6026 | 2 | config 64BIT |
104daea1 MY |
3 | bool "64-bit kernel" if "$(ARCH)" = "sparc" |
4 | default "$(ARCH)" = "sparc64" | |
761b6026 BB |
5 | help |
6 | SPARC is a family of RISC microprocessors designed and marketed by | |
7 | Sun Microsystems, incorporated. They are very widely found in Sun | |
8 | workstations and clones. | |
9 | ||
10 | Say yes to build a 64-bit kernel - formerly known as sparc64 | |
11 | Say no to build a 32-bit kernel - formerly known as sparc | |
12 | ||
35da3e39 SR |
13 | config SPARC |
14 | bool | |
15 | default y | |
ff649a6f | 16 | select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI |
a5252c28 | 17 | select ARCH_MIGHT_HAVE_PC_SERIO |
2f9237d4 | 18 | select DMA_OPS |
7b14c647 | 19 | select OF |
3cfc535c | 20 | select OF_PROMTREE |
2ff2b7ec | 21 | select HAVE_ASM_MODVERSIONS |
26b4c912 | 22 | select HAVE_ARCH_KGDB if !SMP || SPARC64 |
35da3e39 | 23 | select HAVE_ARCH_TRACEHOOK |
282a181b | 24 | select HAVE_ARCH_SECCOMP if SPARC64 |
5f56a5df | 25 | select HAVE_EXIT_THREAD |
eb01d42a | 26 | select HAVE_PCI |
7ac57a89 | 27 | select SYSCTL_EXCEPTION_TRACE |
35da3e39 SR |
28 | select RTC_CLASS |
29 | select RTC_DRV_M48T59 | |
460ea8d7 | 30 | select RTC_SYSTOHC |
4f6500ff | 31 | select HAVE_ARCH_JUMP_LABEL if SPARC64 |
6baa9b20 | 32 | select GENERIC_IRQ_SHOW |
c1d7e01d | 33 | select ARCH_WANT_IPC_PARSE_VERSION |
a21a2fd4 | 34 | select GENERIC_PCI_IOMAP |
fcbfe812 | 35 | select HAS_IOPORT |
a5fcc236 | 36 | select HAVE_HARDLOCKUP_DETECTOR_SPARC64 if SPARC64 |
7a12b503 DM |
37 | select HAVE_CBPF_JIT if SPARC32 |
38 | select HAVE_EBPF_JIT if SPARC64 | |
9b2a60c4 | 39 | select HAVE_DEBUG_BUGVERBOSE |
f0a2bc7e | 40 | select GENERIC_SMP_IDLE_THREAD |
786d35d4 | 41 | select MODULES_USE_ELF_RELA |
20f1b79d | 42 | select PCI_SYSCALL if PCI |
981aa1d3 | 43 | select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
eaca6eae | 44 | select ODD_RT_SIGACTION |
52ad6b3f | 45 | select OLD_SIGSUSPEND |
fff7fb0b | 46 | select CPU_NO_EFFICIENT_FFS |
395102db | 47 | select LOCKDEP_SMALL if LOCKDEP |
f616ab59 | 48 | select NEED_DMA_MAP_STATE |
86596f0a | 49 | select NEED_SG_DMA_LENGTH |
4aae683f | 50 | select TRACE_IRQFLAGS_SUPPORT |
35da3e39 | 51 | |
35da3e39 | 52 | config SPARC32 |
761b6026 | 53 | def_bool !64BIT |
942fa985 | 54 | select ARCH_32BIT_OFF_T |
44ade508 | 55 | select ARCH_HAS_CPU_FINALIZE_INIT if !SMP |
dfaad39c | 56 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
c6df4b17 | 57 | select CLZ_TAB |
7d6db80b CH |
58 | select DMA_DIRECT_REMAP |
59 | select GENERIC_ATOMIC64 | |
af1839eb | 60 | select HAVE_UID16 |
a050ba1e | 61 | select LOCK_MM_AND_FIND_VMA |
a274bd49 | 62 | select OLD_SIGACTION |
63703f37 | 63 | select ZONE_DMA |
35da3e39 | 64 | |
26b4c912 | 65 | config SPARC64 |
761b6026 | 66 | def_bool 64BIT |
12700c17 | 67 | select ALTERNATE_USER_ADDRESS_SPACE |
26b4c912 | 68 | select HAVE_FUNCTION_TRACER |
9960e9e8 | 69 | select HAVE_FUNCTION_GRAPH_TRACER |
26b4c912 SR |
70 | select HAVE_KRETPROBES |
71 | select HAVE_KPROBES | |
ff2e6d72 | 72 | select MMU_GATHER_RCU_TABLE_FREE if SMP |
1e9fdf21 PZ |
73 | select MMU_GATHER_MERGE_VMAS |
74 | select MMU_GATHER_NO_FLUSH_CACHE | |
b9156ebb | 75 | select HAVE_ARCH_TRANSPARENT_HUGEPAGE |
9be12f9b DM |
76 | select HAVE_DYNAMIC_FTRACE |
77 | select HAVE_FTRACE_MCOUNT_RECORD | |
c658ad1b | 78 | select HAVE_SYSCALL_TRACEPOINTS |
24a9c541 | 79 | select HAVE_CONTEXT_TRACKING_USER |
490f561b | 80 | select HAVE_TIF_NOHZ |
b69ec42b | 81 | select HAVE_DEBUG_KMEMLEAK |
a4ce5a48 | 82 | select IOMMU_HELPER |
ee6a9333 | 83 | select SPARSE_IRQ |
26b4c912 SR |
84 | select RTC_DRV_CMOS |
85 | select RTC_DRV_BQ4802 | |
86 | select RTC_DRV_SUN4V | |
87 | select RTC_DRV_STARFIRE | |
cdd6c482 | 88 | select HAVE_PERF_EVENTS |
906010b2 | 89 | select PERF_USE_VMALLOC |
df013ffb | 90 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
178a2960 | 91 | select HAVE_C_RECORDMCOUNT |
7a017721 | 92 | select HAVE_ARCH_AUDITSYSCALL |
4badad35 | 93 | select ARCH_SUPPORTS_ATOMIC_RMW |
5d6ad668 | 94 | select ARCH_SUPPORTS_DEBUG_PAGEALLOC |
42a0bb3f | 95 | select HAVE_NMI |
b7c02b73 | 96 | select HAVE_REGS_AND_STACK_ACCESS_API |
a37594f1 | 97 | select ARCH_USE_QUEUED_RWLOCKS |
145d9785 | 98 | select ARCH_USE_QUEUED_SPINLOCKS |
9a08862a NM |
99 | select GENERIC_TIME_VSYSCALL |
100 | select ARCH_CLOCKSOURCE_DATA | |
3010a5ea | 101 | select ARCH_HAS_PTE_SPECIAL |
2eac9c2d | 102 | select PCI_DOMAINS if PCI |
4eb0716e | 103 | select ARCH_HAS_GIGANTIC_PAGE |
cd1a41ce | 104 | select HAVE_SOFTIRQ_ON_OWN_STACK |
7ecd19cf KW |
105 | select HAVE_SETUP_PER_CPU_AREA |
106 | select NEED_PER_CPU_EMBED_FIRST_CHUNK | |
107 | select NEED_PER_CPU_PAGE_FIRST_CHUNK | |
26b4c912 | 108 | |
3c08158e DM |
109 | config ARCH_PROC_KCORE_TEXT |
110 | def_bool y | |
111 | ||
97d9f969 BM |
112 | config CPU_BIG_ENDIAN |
113 | def_bool y | |
114 | ||
c88c545b DK |
115 | config ARCH_ATU |
116 | bool | |
117 | default y if SPARC64 | |
118 | ||
26b4c912 SR |
119 | config STACKTRACE_SUPPORT |
120 | bool | |
121 | default y if SPARC64 | |
122 | ||
123 | config LOCKDEP_SUPPORT | |
124 | bool | |
125 | default y if SPARC64 | |
126 | ||
bdde6b3c TK |
127 | config ARCH_HIBERNATION_POSSIBLE |
128 | def_bool y if SPARC64 | |
129 | ||
26b4c912 SR |
130 | config AUDIT_ARCH |
131 | bool | |
7e7e93a2 | 132 | default y |
26b4c912 | 133 | |
1da177e4 LT |
134 | config MMU |
135 | bool | |
136 | default y | |
137 | ||
1da177e4 LT |
138 | config HIGHMEM |
139 | bool | |
26b4c912 | 140 | default y if SPARC32 |
3293efa9 | 141 | select KMAP_LOCAL |
1da177e4 LT |
142 | |
143 | config GENERIC_ISA_DMA | |
144 | bool | |
26b4c912 | 145 | default y if SPARC32 |
1da177e4 | 146 | |
81a2936c KS |
147 | config PGTABLE_LEVELS |
148 | default 4 if 64BIT | |
149 | default 3 | |
150 | ||
e8f4aa60 AP |
151 | config ARCH_SUPPORTS_UPROBES |
152 | def_bool y if SPARC64 | |
153 | ||
26b4c912 | 154 | menu "Processor type and features" |
1da177e4 | 155 | |
1da177e4 | 156 | config SMP |
6b7679dd | 157 | bool "Symmetric multi-processing support" |
a7f7f624 | 158 | help |
1da177e4 LT |
159 | This enables support for systems with more than one CPU. If you have |
160 | a system with only one CPU, say N. If you have a system with more | |
161 | than one CPU, say Y. | |
162 | ||
4a474157 | 163 | If you say N here, the kernel will run on uni- and multiprocessor |
1da177e4 LT |
164 | machines, but will use only one CPU of a multiprocessor machine. If |
165 | you say Y here, the kernel will run on many, but not all, | |
4a474157 | 166 | uniprocessor machines. On a uniprocessor machine, the kernel |
1da177e4 LT |
167 | will run faster if you say N here. |
168 | ||
169 | People using multiprocessor machines who say Y here should also say | |
170 | Y to "Enhanced Real Time Clock Support", below. The "Advanced Power | |
171 | Management" code will be disabled if you say Y here. | |
172 | ||
4f4cfa6c | 173 | See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO |
37719576 | 174 | available at <https://www.tldp.org/docs.html#howto>. |
1da177e4 LT |
175 | |
176 | If you don't know what to do here, say N. | |
177 | ||
178 | config NR_CPUS | |
26b4c912 | 179 | int "Maximum number of CPUs" |
1da177e4 | 180 | depends on SMP |
26b4c912 | 181 | range 2 32 if SPARC32 |
c79a1373 | 182 | range 2 4096 if SPARC64 |
26b4c912 | 183 | default 32 if SPARC32 |
c79a1373 | 184 | default 4096 if SPARC64 |
1da177e4 | 185 | |
8636a1f9 | 186 | source "kernel/Kconfig.hz" |
1da177e4 | 187 | |
d59288b7 AM |
188 | config GENERIC_HWEIGHT |
189 | bool | |
e0b20296 | 190 | default y |
d59288b7 | 191 | |
1da177e4 LT |
192 | config GENERIC_CALIBRATE_DELAY |
193 | bool | |
194 | default y | |
195 | ||
a08b6b79 Z |
196 | config ARCH_MAY_HAVE_PC_FDC |
197 | bool | |
198 | default y | |
199 | ||
5f81941c MH |
200 | config EMULATED_CMPXCHG |
201 | bool | |
26b4c912 | 202 | default y if SPARC32 |
5f81941c MH |
203 | help |
204 | Sparc32 does not have a CAS instruction like sparc64. cmpxchg() | |
205 | is emulated, and therefore it is not completely atomic. | |
206 | ||
d670bd4f SR |
207 | # Makefile helpers |
208 | config SPARC32_SMP | |
209 | bool | |
210 | default y | |
211 | depends on SPARC32 && SMP | |
212 | ||
213 | config SPARC64_SMP | |
214 | bool | |
215 | default y | |
216 | depends on SPARC64 && SMP | |
217 | ||
c57ec52f DM |
218 | config EARLYFB |
219 | bool "Support for early boot text console" | |
220 | default y | |
221 | depends on SPARC64 | |
222 | help | |
223 | Say Y here to enable a faster early framebuffer boot console. | |
224 | ||
26b4c912 SR |
225 | config HOTPLUG_CPU |
226 | bool "Support for hot-pluggable CPUs" | |
227 | depends on SPARC64 && SMP | |
26b4c912 SR |
228 | help |
229 | Say Y here to experiment with turning CPUs off and on. CPUs | |
230 | can be controlled through /sys/devices/system/cpu/cpu#. | |
231 | Say N if you want to disable CPU hotplug. | |
232 | ||
26b4c912 SR |
233 | if SPARC64 |
234 | source "drivers/cpufreq/Kconfig" | |
26b4c912 SR |
235 | endif |
236 | ||
237 | config US3_MC | |
238 | tristate "UltraSPARC-III Memory Controller driver" | |
239 | depends on SPARC64 | |
240 | default y | |
241 | help | |
242 | This adds a driver for the UltraSPARC-III memory controller. | |
243 | Loading this driver allows exact mnemonic strings to be | |
244 | printed in the event of a memory error, so that the faulty DIMM | |
245 | on the motherboard can be matched to the error. | |
246 | ||
247 | If in doubt, say Y, as this information can be very useful. | |
248 | ||
249 | # Global things across all Sun machines. | |
250 | config GENERIC_LOCKBREAK | |
1da177e4 LT |
251 | bool |
252 | default y | |
85a683d0 | 253 | depends on SPARC64 && SMP && PREEMPTION |
26b4c912 | 254 | |
26b4c912 SR |
255 | config NUMA |
256 | bool "NUMA support" | |
257 | depends on SPARC64 && SMP | |
258 | ||
259 | config NODES_SHIFT | |
7485af89 JC |
260 | int "Maximum NUMA Nodes (as a power of 2)" |
261 | range 4 5 if SPARC64 | |
262 | default "5" | |
a9ee6cf5 | 263 | depends on NUMA |
7485af89 JC |
264 | help |
265 | Specify the maximum number of NUMA Nodes available on the target | |
266 | system. Increases memory reserved to accommodate various tables. | |
26b4c912 | 267 | |
26b4c912 SR |
268 | config ARCH_SPARSEMEM_ENABLE |
269 | def_bool y if SPARC64 | |
270 | select SPARSEMEM_VMEMMAP_ENABLE | |
271 | ||
272 | config ARCH_SPARSEMEM_DEFAULT | |
273 | def_bool y if SPARC64 | |
274 | ||
0192445c | 275 | config ARCH_FORCE_MAX_ORDER |
8def4c05 | 276 | int "Order of maximal physically contiguous allocations" |
23baf831 | 277 | default "12" |
c88c545b | 278 | help |
8def4c05 MRI |
279 | The kernel page allocator limits the size of maximal physically |
280 | contiguous allocations. The limit is called MAX_ORDER and it | |
281 | defines the maximal power of two of number of pages that can be | |
282 | allocated as a single contiguous block. This option allows | |
283 | overriding the default setting when ability to allocate very | |
284 | large blocks of physically contiguous memory is required. | |
285 | ||
286 | Don't change if unsure. | |
c88c545b | 287 | |
7be6a87c | 288 | if SPARC64 || COMPILE_TEST |
bdde6b3c TK |
289 | source "kernel/power/Kconfig" |
290 | endif | |
291 | ||
26b4c912 SR |
292 | config SCHED_SMT |
293 | bool "SMT (Hyperthreading) scheduler support" | |
294 | depends on SPARC64 && SMP | |
295 | default y | |
296 | help | |
297 | SMT scheduler support improves the CPU scheduler's decision making | |
298 | when dealing with SPARC cpus at a cost of slightly increased overhead | |
299 | in some places. If unsure say N here. | |
300 | ||
301 | config SCHED_MC | |
302 | bool "Multi-core scheduler support" | |
303 | depends on SPARC64 && SMP | |
304 | default y | |
305 | help | |
306 | Multi-core scheduler support improves the CPU scheduler's decision | |
307 | making when dealing with multi-core CPU chips at a cost of slightly | |
308 | increased overhead in some places. If unsure say N here. | |
309 | ||
26b4c912 SR |
310 | config CMDLINE_BOOL |
311 | bool "Default bootloader kernel arguments" | |
312 | depends on SPARC64 | |
313 | ||
314 | config CMDLINE | |
315 | string "Initial kernel command string" | |
316 | depends on CMDLINE_BOOL | |
317 | default "console=ttyS0,9600 root=/dev/sda1" | |
318 | help | |
319 | Say Y here if you want to be able to pass default arguments to | |
320 | the kernel. This will be overridden by the bootloader, if you | |
321 | use one (such as SILO). This is most useful if you want to boot | |
322 | a kernel from TFTP, and want default options to be available | |
323 | with having them passed on the command line. | |
324 | ||
325 | NOTE: This option WILL override the PROM bootargs setting! | |
326 | ||
327 | config SUN_PM | |
328 | bool | |
329 | default y if SPARC32 | |
1da177e4 LT |
330 | help |
331 | Enable power management and CPU standby features on supported | |
332 | SPARC platforms. | |
333 | ||
4b27e0e1 SR |
334 | config SPARC_LED |
335 | tristate "Sun4m LED driver" | |
26b4c912 | 336 | depends on SPARC32 |
4b27e0e1 SR |
337 | help |
338 | This driver toggles the front-panel LED on sun4m systems | |
339 | in a user-specifiable manner. Its state can be probed | |
340 | by reading /proc/led and its blinking mode can be changed | |
341 | via writes to /proc/led | |
342 | ||
26b4c912 SR |
343 | config SERIAL_CONSOLE |
344 | bool | |
345 | depends on SPARC32 | |
346 | default y | |
a7f7f624 | 347 | help |
26b4c912 SR |
348 | If you say Y here, it will be possible to use a serial port as the |
349 | system console (the system console is the device which receives all | |
350 | kernel messages and warnings and which allows logins in single user | |
351 | mode). This could be useful if some terminal or printer is connected | |
352 | to that serial port. | |
353 | ||
354 | Even if you say Y here, the currently visible virtual console | |
355 | (/dev/tty0) will still be used as the system console by default, but | |
356 | you can alter that using a kernel command line option such as | |
357 | "console=ttyS1". (Try "man bootparam" or see the documentation of | |
358 | your boot loader (silo) about how to pass options to the kernel at | |
359 | boot time.) | |
360 | ||
361 | If you don't have a graphics card installed and you say Y here, the | |
362 | kernel will automatically use the first serial line, /dev/ttyS0, as | |
363 | system console. | |
364 | ||
365 | If unsure, say N. | |
4b27e0e1 | 366 | |
5213a780 KE |
367 | config SPARC_LEON |
368 | bool "Sparc Leon processor family" | |
369 | depends on SPARC32 | |
9296d94d FF |
370 | select USB_EHCI_BIG_ENDIAN_MMIO |
371 | select USB_EHCI_BIG_ENDIAN_DESC | |
5efad9ee JH |
372 | select USB_UHCI_BIG_ENDIAN_MMIO |
373 | select USB_UHCI_BIG_ENDIAN_DESC | |
a7f7f624 | 374 | help |
5213a780 KE |
375 | If you say Y here if you are running on a SPARC-LEON processor. |
376 | The LEON processor is a synthesizable VHDL model of the | |
377 | SPARC-v8 standard. LEON is part of the GRLIB collection of | |
378 | IP cores that are distributed under GPL. GRLIB can be downloaded | |
379 | from www.gaisler.com. You can download a sparc-linux cross-compilation | |
380 | toolchain at www.gaisler.com. | |
381 | ||
684151a7 DH |
382 | if SPARC_LEON |
383 | menu "U-Boot options" | |
384 | ||
385 | config UBOOT_LOAD_ADDR | |
386 | hex "uImage Load Address" | |
387 | default 0x40004000 | |
a7f7f624 | 388 | help |
684151a7 DH |
389 | U-Boot kernel load address, the address in physical address space |
390 | where u-boot will place the Linux kernel before booting it. | |
391 | This address is normally the base address of main memory + 0x4000. | |
392 | ||
393 | config UBOOT_FLASH_ADDR | |
394 | hex "uImage.o Load Address" | |
395 | default 0x00080000 | |
a7f7f624 | 396 | help |
684151a7 DH |
397 | Optional setting only affecting the uImage.o ELF-image used to |
398 | download the uImage file to the target using a ELF-loader other than | |
399 | U-Boot. It may for example be used to download an uImage to FLASH with | |
400 | the GRMON utility before even starting u-boot. | |
401 | ||
402 | config UBOOT_ENTRY_ADDR | |
403 | hex "uImage Entry Address" | |
404 | default 0xf0004000 | |
a7f7f624 | 405 | help |
684151a7 DH |
406 | Do not change this unless you know what you're doing. This is |
407 | hardcoded by the SPARC32 and LEON port. | |
408 | ||
409 | This is the virtual address u-boot jumps to when booting the Linux | |
410 | Kernel. | |
411 | ||
412 | endmenu | |
413 | endif | |
414 | ||
4b27e0e1 SR |
415 | endmenu |
416 | ||
417 | menu "Bus options (PCI etc.)" | |
4b27e0e1 SR |
418 | config SBUS |
419 | bool | |
420 | default y | |
421 | ||
422 | config SBUSCHAR | |
423 | bool | |
424 | default y | |
425 | ||
26b4c912 SR |
426 | config SUN_LDOMS |
427 | bool "Sun Logical Domains support" | |
428 | depends on SPARC64 | |
429 | help | |
430 | Say Y here is you want to support virtual devices via | |
431 | Logical Domains. | |
432 | ||
cfe3af5d DH |
433 | config PCIC_PCI |
434 | bool | |
8c47f8d0 | 435 | depends on PCI && SPARC32 && !SPARC_LEON |
cfe3af5d DH |
436 | default y |
437 | ||
26893c13 DH |
438 | config LEON_PCI |
439 | bool | |
440 | depends on PCI && SPARC_LEON | |
441 | default y | |
442 | ||
d8650106 DH |
443 | config SPARC_GRPCI1 |
444 | bool "GRPCI Host Bridge Support" | |
445 | depends on LEON_PCI | |
446 | default y | |
447 | help | |
448 | Say Y here to include the GRPCI Host Bridge Driver. The GRPCI | |
449 | PCI host controller is typically found in GRLIB SPARC32/LEON | |
450 | systems. The driver has one property (all_pci_errors) controlled | |
451 | from the bootloader that makes the GRPCI to generate interrupts | |
452 | on detected PCI Parity and System errors. | |
453 | ||
1ab0a676 | 454 | config SPARC_GRPCI2 |
5d07b786 DH |
455 | bool "GRPCI2 Host Bridge Support" |
456 | depends on LEON_PCI | |
457 | default y | |
458 | help | |
459 | Say Y here to include the GRPCI2 Host Bridge Driver. | |
460 | ||
1da177e4 LT |
461 | config SUN_OPENPROMFS |
462 | tristate "Openprom tree appears in /proc/openprom" | |
463 | help | |
464 | If you say Y, the OpenPROM device tree will be available as a | |
465 | virtual file system, which you can mount to /proc/openprom by "mount | |
466 | -t openpromfs none /proc/openprom". | |
467 | ||
468 | To compile the /proc/openprom support as a module, choose M here: the | |
469 | module will be called openpromfs. | |
470 | ||
471 | Only choose N if you know in advance that you will not need to modify | |
472 | OpenPROM settings on the running system. | |
473 | ||
a988fb80 | 474 | # Makefile helpers |
d670bd4f SR |
475 | config SPARC64_PCI |
476 | bool | |
477 | default y | |
478 | depends on SPARC64 && PCI | |
30aaa808 | 479 | |
a988fb80 TP |
480 | config SPARC64_PCI_MSI |
481 | bool | |
482 | default y | |
483 | depends on SPARC64_PCI && PCI_MSI | |
484 | ||
30aaa808 WLII |
485 | endmenu |
486 | ||
26b4c912 SR |
487 | config COMPAT |
488 | bool | |
489 | depends on SPARC64 | |
490 | default y | |
af1839eb | 491 | select HAVE_UID16 |
48b25c43 | 492 | select ARCH_WANT_OLD_COMPAT_IPC |
a274bd49 | 493 | select COMPAT_OLD_SIGACTION |
26b4c912 | 494 | |
1da177e4 | 495 | source "drivers/sbus/char/Kconfig" |