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