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Commit | Line | Data |
---|---|---|
8c2c3df3 CM |
1 | config ARM64 |
2 | def_bool y | |
3 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE | |
308c09f1 | 4 | select ARCH_HAS_SG_CHAIN |
1f85008e | 5 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
c63c8700 | 6 | select ARCH_USE_CMPXCHG_LOCKREF |
4badad35 | 7 | select ARCH_SUPPORTS_ATOMIC_RMW |
9170100e | 8 | select ARCH_WANT_OPTIONAL_GPIOLIB |
6212a512 | 9 | select ARCH_WANT_COMPAT_IPC_PARSE_VERSION |
b6f35981 | 10 | select ARCH_WANT_FRAME_POINTERS |
25c92a37 | 11 | select ARM_AMBA |
1aee5d7a | 12 | select ARM_ARCH_TIMER |
c4188edc | 13 | select ARM_GIC |
875cbf3e | 14 | select AUDIT_ARCH_COMPAT_GENERIC |
021f6537 | 15 | select ARM_GIC_V3 |
adace895 | 16 | select BUILDTIME_EXTABLE_SORT |
db2789b5 | 17 | select CLONE_BACKWARDS |
7ca2ef33 | 18 | select COMMON_CLK |
166936ba | 19 | select CPU_PM if (SUSPEND || CPU_IDLE) |
7bc13fd3 | 20 | select DCACHE_WORD_ACCESS |
d4932f9e | 21 | select GENERIC_ALLOCATOR |
8c2c3df3 | 22 | select GENERIC_CLOCKEVENTS |
1f85008e | 23 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
3be1a5c4 | 24 | select GENERIC_CPU_AUTOPROBE |
bf4b558e | 25 | select GENERIC_EARLY_IOREMAP |
8c2c3df3 CM |
26 | select GENERIC_IRQ_PROBE |
27 | select GENERIC_IRQ_SHOW | |
65cd4f6c | 28 | select GENERIC_SCHED_CLOCK |
8c2c3df3 | 29 | select GENERIC_SMP_IDLE_THREAD |
12a0ef7b WD |
30 | select GENERIC_STRNCPY_FROM_USER |
31 | select GENERIC_STRNLEN_USER | |
8c2c3df3 | 32 | select GENERIC_TIME_VSYSCALL |
a1ddc74a | 33 | select HANDLE_DOMAIN_IRQ |
8c2c3df3 | 34 | select HARDIRQS_SW_RESEND |
875cbf3e | 35 | select HAVE_ARCH_AUDITSYSCALL |
9732cafd | 36 | select HAVE_ARCH_JUMP_LABEL |
9529247d | 37 | select HAVE_ARCH_KGDB |
8c2c3df3 | 38 | select HAVE_ARCH_TRACEHOOK |
e54bcde3 | 39 | select HAVE_BPF_JIT |
af64d2aa | 40 | select HAVE_C_RECORDMCOUNT |
c0c264ae | 41 | select HAVE_CC_STACKPROTECTOR |
9b2a60c4 | 42 | select HAVE_DEBUG_BUGVERBOSE |
b69ec42b | 43 | select HAVE_DEBUG_KMEMLEAK |
8c2c3df3 CM |
44 | select HAVE_DMA_API_DEBUG |
45 | select HAVE_DMA_ATTRS | |
6ac2104d | 46 | select HAVE_DMA_CONTIGUOUS |
bd7d38db | 47 | select HAVE_DYNAMIC_FTRACE |
50afc33a | 48 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
af64d2aa | 49 | select HAVE_FTRACE_MCOUNT_RECORD |
819e50e2 AT |
50 | select HAVE_FUNCTION_TRACER |
51 | select HAVE_FUNCTION_GRAPH_TRACER | |
8c2c3df3 | 52 | select HAVE_GENERIC_DMA_COHERENT |
8c2c3df3 | 53 | select HAVE_HW_BREAKPOINT if PERF_EVENTS |
8c2c3df3 | 54 | select HAVE_MEMBLOCK |
55834a77 | 55 | select HAVE_PATA_PLATFORM |
8c2c3df3 | 56 | select HAVE_PERF_EVENTS |
2ee0d7fd JP |
57 | select HAVE_PERF_REGS |
58 | select HAVE_PERF_USER_STACK_DUMP | |
5e5f6dc1 | 59 | select HAVE_RCU_TABLE_FREE |
055b1212 | 60 | select HAVE_SYSCALL_TRACEPOINTS |
8c2c3df3 | 61 | select IRQ_DOMAIN |
fea2acaa | 62 | select MODULES_USE_ELF_RELA |
8c2c3df3 CM |
63 | select NO_BOOTMEM |
64 | select OF | |
65 | select OF_EARLY_FLATTREE | |
9bf14b7c | 66 | select OF_RESERVED_MEM |
8c2c3df3 | 67 | select PERF_USE_VMALLOC |
aa1e8ec1 CM |
68 | select POWER_RESET |
69 | select POWER_SUPPLY | |
8c2c3df3 CM |
70 | select RTC_LIB |
71 | select SPARSE_IRQ | |
7ac57a89 | 72 | select SYSCTL_EXCEPTION_TRACE |
6c81fe79 | 73 | select HAVE_CONTEXT_TRACKING |
8c2c3df3 CM |
74 | help |
75 | ARM 64-bit (AArch64) Linux support. | |
76 | ||
77 | config 64BIT | |
78 | def_bool y | |
79 | ||
80 | config ARCH_PHYS_ADDR_T_64BIT | |
81 | def_bool y | |
82 | ||
83 | config MMU | |
84 | def_bool y | |
85 | ||
ce816fa8 | 86 | config NO_IOPORT_MAP |
d1e6dc91 | 87 | def_bool y if !PCI |
8c2c3df3 CM |
88 | |
89 | config STACKTRACE_SUPPORT | |
90 | def_bool y | |
91 | ||
92 | config LOCKDEP_SUPPORT | |
93 | def_bool y | |
94 | ||
95 | config TRACE_IRQFLAGS_SUPPORT | |
96 | def_bool y | |
97 | ||
c209f799 | 98 | config RWSEM_XCHGADD_ALGORITHM |
8c2c3df3 CM |
99 | def_bool y |
100 | ||
101 | config GENERIC_HWEIGHT | |
102 | def_bool y | |
103 | ||
104 | config GENERIC_CSUM | |
105 | def_bool y | |
106 | ||
107 | config GENERIC_CALIBRATE_DELAY | |
108 | def_bool y | |
109 | ||
19e7640d | 110 | config ZONE_DMA |
8c2c3df3 CM |
111 | def_bool y |
112 | ||
29e56940 SC |
113 | config HAVE_GENERIC_RCU_GUP |
114 | def_bool y | |
115 | ||
8c2c3df3 CM |
116 | config ARCH_DMA_ADDR_T_64BIT |
117 | def_bool y | |
118 | ||
119 | config NEED_DMA_MAP_STATE | |
120 | def_bool y | |
121 | ||
122 | config NEED_SG_DMA_LENGTH | |
123 | def_bool y | |
124 | ||
125 | config SWIOTLB | |
126 | def_bool y | |
127 | ||
128 | config IOMMU_HELPER | |
129 | def_bool SWIOTLB | |
130 | ||
4cfb3613 AB |
131 | config KERNEL_MODE_NEON |
132 | def_bool y | |
133 | ||
92cc15fc RH |
134 | config FIX_EARLYCON_MEM |
135 | def_bool y | |
136 | ||
8c2c3df3 CM |
137 | source "init/Kconfig" |
138 | ||
139 | source "kernel/Kconfig.freezer" | |
140 | ||
1ae90e79 CM |
141 | menu "Platform selection" |
142 | ||
28f7420d RMC |
143 | config ARCH_THUNDER |
144 | bool "Cavium Inc. Thunder SoC Family" | |
145 | help | |
146 | This enables support for Cavium's Thunder Family of SoCs. | |
147 | ||
1ae90e79 CM |
148 | config ARCH_VEXPRESS |
149 | bool "ARMv8 software model (Versatile Express)" | |
150 | select ARCH_REQUIRE_GPIOLIB | |
151 | select COMMON_CLK_VERSATILE | |
aa1e8ec1 | 152 | select POWER_RESET_VEXPRESS |
1ae90e79 CM |
153 | select VEXPRESS_CONFIG |
154 | help | |
155 | This enables support for the ARMv8 software model (Versatile | |
156 | Express). | |
8c2c3df3 | 157 | |
15942853 VK |
158 | config ARCH_XGENE |
159 | bool "AppliedMicro X-Gene SOC Family" | |
160 | help | |
161 | This enables support for AppliedMicro X-Gene SOC Family | |
162 | ||
8c2c3df3 CM |
163 | endmenu |
164 | ||
165 | menu "Bus support" | |
166 | ||
167 | config ARM_AMBA | |
168 | bool | |
169 | ||
d1e6dc91 LD |
170 | config PCI |
171 | bool "PCI support" | |
172 | help | |
173 | This feature enables support for PCI bus system. If you say Y | |
174 | here, the kernel will include drivers and infrastructure code | |
175 | to support PCI bus devices. | |
176 | ||
177 | config PCI_DOMAINS | |
178 | def_bool PCI | |
179 | ||
180 | config PCI_DOMAINS_GENERIC | |
181 | def_bool PCI | |
182 | ||
183 | config PCI_SYSCALL | |
184 | def_bool PCI | |
185 | ||
186 | source "drivers/pci/Kconfig" | |
187 | source "drivers/pci/pcie/Kconfig" | |
188 | source "drivers/pci/hotplug/Kconfig" | |
189 | ||
8c2c3df3 CM |
190 | endmenu |
191 | ||
192 | menu "Kernel Features" | |
193 | ||
e41ceed0 JL |
194 | choice |
195 | prompt "Page size" | |
196 | default ARM64_4K_PAGES | |
197 | help | |
198 | Page size (translation granule) configuration. | |
199 | ||
200 | config ARM64_4K_PAGES | |
201 | bool "4KB" | |
202 | help | |
203 | This feature enables 4KB pages support. | |
204 | ||
8c2c3df3 | 205 | config ARM64_64K_PAGES |
e41ceed0 | 206 | bool "64KB" |
8c2c3df3 CM |
207 | help |
208 | This feature enables 64KB pages support (4KB by default) | |
209 | allowing only two levels of page tables and faster TLB | |
210 | look-up. AArch32 emulation is not available when this feature | |
211 | is enabled. | |
212 | ||
e41ceed0 JL |
213 | endchoice |
214 | ||
215 | choice | |
216 | prompt "Virtual address space size" | |
217 | default ARM64_VA_BITS_39 if ARM64_4K_PAGES | |
218 | default ARM64_VA_BITS_42 if ARM64_64K_PAGES | |
219 | help | |
220 | Allows choosing one of multiple possible virtual address | |
221 | space sizes. The level of translation table is determined by | |
222 | a combination of page size and virtual address space size. | |
223 | ||
224 | config ARM64_VA_BITS_39 | |
225 | bool "39-bit" | |
226 | depends on ARM64_4K_PAGES | |
227 | ||
228 | config ARM64_VA_BITS_42 | |
229 | bool "42-bit" | |
230 | depends on ARM64_64K_PAGES | |
231 | ||
c79b954b JL |
232 | config ARM64_VA_BITS_48 |
233 | bool "48-bit" | |
234 | depends on BROKEN | |
235 | ||
e41ceed0 JL |
236 | endchoice |
237 | ||
238 | config ARM64_VA_BITS | |
239 | int | |
240 | default 39 if ARM64_VA_BITS_39 | |
241 | default 42 if ARM64_VA_BITS_42 | |
c79b954b | 242 | default 48 if ARM64_VA_BITS_48 |
e41ceed0 | 243 | |
abe669d7 CM |
244 | config ARM64_PGTABLE_LEVELS |
245 | int | |
246 | default 2 if ARM64_64K_PAGES && ARM64_VA_BITS_42 | |
383c2799 | 247 | default 3 if ARM64_64K_PAGES && ARM64_VA_BITS_48 |
abe669d7 CM |
248 | default 3 if ARM64_4K_PAGES && ARM64_VA_BITS_39 |
249 | default 4 if ARM64_4K_PAGES && ARM64_VA_BITS_48 | |
c79b954b | 250 | |
a872013d WD |
251 | config CPU_BIG_ENDIAN |
252 | bool "Build big-endian kernel" | |
253 | help | |
254 | Say Y if you plan on running a kernel in big-endian mode. | |
255 | ||
8c2c3df3 CM |
256 | config SMP |
257 | bool "Symmetric Multi-Processing" | |
8c2c3df3 CM |
258 | help |
259 | This enables support for systems with more than one CPU. If | |
260 | you say N here, the kernel will run on single and | |
261 | multiprocessor machines, but will use only one CPU of a | |
262 | multiprocessor machine. If you say Y here, the kernel will run | |
263 | on many, but not all, single processor machines. On a single | |
264 | processor machine, the kernel will run faster if you say N | |
265 | here. | |
266 | ||
267 | If you don't know what to do here, say N. | |
268 | ||
f6e763b9 MB |
269 | config SCHED_MC |
270 | bool "Multi-core scheduler support" | |
271 | depends on SMP | |
272 | help | |
273 | Multi-core scheduler support improves the CPU scheduler's decision | |
274 | making when dealing with multi-core CPU chips at a cost of slightly | |
275 | increased overhead in some places. If unsure say N here. | |
276 | ||
277 | config SCHED_SMT | |
278 | bool "SMT scheduler support" | |
279 | depends on SMP | |
280 | help | |
281 | Improves the CPU scheduler's decision making when dealing with | |
282 | MultiThreading at a cost of slightly increased overhead in some | |
283 | places. If unsure say N here. | |
284 | ||
8c2c3df3 | 285 | config NR_CPUS |
e3672649 RR |
286 | int "Maximum number of CPUs (2-64)" |
287 | range 2 64 | |
8c2c3df3 | 288 | depends on SMP |
15942853 | 289 | # These have to remain sorted largest to smallest |
e3672649 | 290 | default "64" |
8c2c3df3 | 291 | |
9327e2c6 MR |
292 | config HOTPLUG_CPU |
293 | bool "Support for hot-pluggable CPUs" | |
294 | depends on SMP | |
295 | help | |
296 | Say Y here to experiment with turning CPUs off and on. CPUs | |
297 | can be controlled through /sys/devices/system/cpu. | |
298 | ||
8c2c3df3 CM |
299 | source kernel/Kconfig.preempt |
300 | ||
301 | config HZ | |
302 | int | |
303 | default 100 | |
304 | ||
305 | config ARCH_HAS_HOLES_MEMORYMODEL | |
306 | def_bool y if SPARSEMEM | |
307 | ||
308 | config ARCH_SPARSEMEM_ENABLE | |
309 | def_bool y | |
310 | select SPARSEMEM_VMEMMAP_ENABLE | |
311 | ||
312 | config ARCH_SPARSEMEM_DEFAULT | |
313 | def_bool ARCH_SPARSEMEM_ENABLE | |
314 | ||
315 | config ARCH_SELECT_MEMORY_MODEL | |
316 | def_bool ARCH_SPARSEMEM_ENABLE | |
317 | ||
318 | config HAVE_ARCH_PFN_VALID | |
319 | def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM | |
320 | ||
321 | config HW_PERF_EVENTS | |
322 | bool "Enable hardware performance counter support for perf events" | |
323 | depends on PERF_EVENTS | |
324 | default y | |
325 | help | |
326 | Enable hardware performance counter support for perf events. If | |
327 | disabled, perf events will use software events only. | |
328 | ||
084bd298 SC |
329 | config SYS_SUPPORTS_HUGETLBFS |
330 | def_bool y | |
331 | ||
332 | config ARCH_WANT_GENERAL_HUGETLB | |
333 | def_bool y | |
334 | ||
335 | config ARCH_WANT_HUGE_PMD_SHARE | |
336 | def_bool y if !ARM64_64K_PAGES | |
337 | ||
af074848 SC |
338 | config HAVE_ARCH_TRANSPARENT_HUGEPAGE |
339 | def_bool y | |
340 | ||
a41dc0e8 CM |
341 | config ARCH_HAS_CACHE_LINE_SIZE |
342 | def_bool y | |
343 | ||
8c2c3df3 CM |
344 | source "mm/Kconfig" |
345 | ||
aa42aa13 SS |
346 | config XEN_DOM0 |
347 | def_bool y | |
348 | depends on XEN | |
349 | ||
350 | config XEN | |
c2ba1f7d | 351 | bool "Xen guest support on ARM64" |
aa42aa13 | 352 | depends on ARM64 && OF |
83862ccf | 353 | select SWIOTLB_XEN |
aa42aa13 SS |
354 | help |
355 | Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64. | |
356 | ||
d03bb145 SC |
357 | config FORCE_MAX_ZONEORDER |
358 | int | |
359 | default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) | |
360 | default "11" | |
361 | ||
8c2c3df3 CM |
362 | endmenu |
363 | ||
364 | menu "Boot options" | |
365 | ||
366 | config CMDLINE | |
367 | string "Default kernel command string" | |
368 | default "" | |
369 | help | |
370 | Provide a set of default command-line options at build time by | |
371 | entering them here. As a minimum, you should specify the the | |
372 | root device (e.g. root=/dev/nfs). | |
373 | ||
374 | config CMDLINE_FORCE | |
375 | bool "Always use the default kernel command string" | |
376 | help | |
377 | Always use the default kernel command string, even if the boot | |
378 | loader passes other arguments to the kernel. | |
379 | This is useful if you cannot or don't want to change the | |
380 | command-line options your boot loader passes to the kernel. | |
381 | ||
f4f75ad5 AB |
382 | config EFI_STUB |
383 | bool | |
384 | ||
f84d0275 MS |
385 | config EFI |
386 | bool "UEFI runtime support" | |
387 | depends on OF && !CPU_BIG_ENDIAN | |
388 | select LIBFDT | |
389 | select UCS2_STRING | |
390 | select EFI_PARAMS_FROM_FDT | |
e15dd494 | 391 | select EFI_RUNTIME_WRAPPERS |
f4f75ad5 AB |
392 | select EFI_STUB |
393 | select EFI_ARMSTUB | |
f84d0275 MS |
394 | default y |
395 | help | |
396 | This option provides support for runtime services provided | |
397 | by UEFI firmware (such as non-volatile variables, realtime | |
3c7f2550 MS |
398 | clock, and platform reset). A UEFI stub is also provided to |
399 | allow the kernel to be booted as an EFI application. This | |
400 | is only useful on systems that have UEFI firmware. | |
f84d0275 | 401 | |
8c2c3df3 CM |
402 | endmenu |
403 | ||
404 | menu "Userspace binary formats" | |
405 | ||
406 | source "fs/Kconfig.binfmt" | |
407 | ||
408 | config COMPAT | |
409 | bool "Kernel support for 32-bit EL0" | |
410 | depends on !ARM64_64K_PAGES | |
411 | select COMPAT_BINFMT_ELF | |
af1839eb | 412 | select HAVE_UID16 |
84b9e9b4 | 413 | select OLD_SIGSUSPEND3 |
51682036 | 414 | select COMPAT_OLD_SIGACTION |
8c2c3df3 CM |
415 | help |
416 | This option enables support for a 32-bit EL0 running under a 64-bit | |
417 | kernel at EL1. AArch32-specific components such as system calls, | |
418 | the user helper functions, VFP support and the ptrace interface are | |
419 | handled appropriately by the kernel. | |
420 | ||
421 | If you want to execute 32-bit userspace applications, say Y. | |
422 | ||
423 | config SYSVIPC_COMPAT | |
424 | def_bool y | |
425 | depends on COMPAT && SYSVIPC | |
426 | ||
427 | endmenu | |
428 | ||
166936ba LP |
429 | menu "Power management options" |
430 | ||
431 | source "kernel/power/Kconfig" | |
432 | ||
433 | config ARCH_SUSPEND_POSSIBLE | |
434 | def_bool y | |
435 | ||
436 | config ARM64_CPU_SUSPEND | |
437 | def_bool PM_SLEEP | |
438 | ||
439 | endmenu | |
440 | ||
1307220d LP |
441 | menu "CPU Power Management" |
442 | ||
443 | source "drivers/cpuidle/Kconfig" | |
444 | ||
52e7e816 RH |
445 | source "drivers/cpufreq/Kconfig" |
446 | ||
447 | endmenu | |
448 | ||
8c2c3df3 CM |
449 | source "net/Kconfig" |
450 | ||
451 | source "drivers/Kconfig" | |
452 | ||
f84d0275 MS |
453 | source "drivers/firmware/Kconfig" |
454 | ||
8c2c3df3 CM |
455 | source "fs/Kconfig" |
456 | ||
c3eb5b14 MZ |
457 | source "arch/arm64/kvm/Kconfig" |
458 | ||
8c2c3df3 CM |
459 | source "arch/arm64/Kconfig.debug" |
460 | ||
461 | source "security/Kconfig" | |
462 | ||
463 | source "crypto/Kconfig" | |
2c98833a AB |
464 | if CRYPTO |
465 | source "arch/arm64/crypto/Kconfig" | |
466 | endif | |
8c2c3df3 CM |
467 | |
468 | source "lib/Kconfig" |