Commit | Line | Data |
---|---|---|
8c2c3df3 CM |
1 | config ARM64 |
2 | def_bool y | |
3 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE | |
1f85008e | 4 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
c63c8700 | 5 | select ARCH_USE_CMPXCHG_LOCKREF |
9170100e | 6 | select ARCH_WANT_OPTIONAL_GPIOLIB |
6212a512 | 7 | select ARCH_WANT_COMPAT_IPC_PARSE_VERSION |
b6f35981 | 8 | select ARCH_WANT_FRAME_POINTERS |
25c92a37 | 9 | select ARM_AMBA |
1aee5d7a | 10 | select ARM_ARCH_TIMER |
c4188edc | 11 | select ARM_GIC |
875cbf3e | 12 | select AUDIT_ARCH_COMPAT_GENERIC |
adace895 | 13 | select BUILDTIME_EXTABLE_SORT |
db2789b5 | 14 | select CLONE_BACKWARDS |
7ca2ef33 | 15 | select COMMON_CLK |
166936ba | 16 | select CPU_PM if (SUSPEND || CPU_IDLE) |
7bc13fd3 | 17 | select DCACHE_WORD_ACCESS |
8c2c3df3 | 18 | select GENERIC_CLOCKEVENTS |
1f85008e | 19 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
3be1a5c4 | 20 | select GENERIC_CPU_AUTOPROBE |
bf4b558e | 21 | select GENERIC_EARLY_IOREMAP |
8c2c3df3 CM |
22 | select GENERIC_IOMAP |
23 | select GENERIC_IRQ_PROBE | |
24 | select GENERIC_IRQ_SHOW | |
65cd4f6c | 25 | select GENERIC_SCHED_CLOCK |
8c2c3df3 | 26 | select GENERIC_SMP_IDLE_THREAD |
12a0ef7b WD |
27 | select GENERIC_STRNCPY_FROM_USER |
28 | select GENERIC_STRNLEN_USER | |
8c2c3df3 CM |
29 | select GENERIC_TIME_VSYSCALL |
30 | select HARDIRQS_SW_RESEND | |
875cbf3e | 31 | select HAVE_ARCH_AUDITSYSCALL |
9732cafd | 32 | select HAVE_ARCH_JUMP_LABEL |
9529247d | 33 | select HAVE_ARCH_KGDB |
8c2c3df3 | 34 | select HAVE_ARCH_TRACEHOOK |
af64d2aa | 35 | select HAVE_C_RECORDMCOUNT |
c0c264ae | 36 | select HAVE_CC_STACKPROTECTOR |
9b2a60c4 | 37 | select HAVE_DEBUG_BUGVERBOSE |
b69ec42b | 38 | select HAVE_DEBUG_KMEMLEAK |
8c2c3df3 CM |
39 | select HAVE_DMA_API_DEBUG |
40 | select HAVE_DMA_ATTRS | |
6ac2104d | 41 | select HAVE_DMA_CONTIGUOUS |
bd7d38db | 42 | select HAVE_DYNAMIC_FTRACE |
50afc33a | 43 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
af64d2aa | 44 | select HAVE_FTRACE_MCOUNT_RECORD |
819e50e2 AT |
45 | select HAVE_FUNCTION_TRACER |
46 | select HAVE_FUNCTION_GRAPH_TRACER | |
8c2c3df3 | 47 | select HAVE_GENERIC_DMA_COHERENT |
8c2c3df3 | 48 | select HAVE_HW_BREAKPOINT if PERF_EVENTS |
8c2c3df3 | 49 | select HAVE_MEMBLOCK |
55834a77 | 50 | select HAVE_PATA_PLATFORM |
8c2c3df3 | 51 | select HAVE_PERF_EVENTS |
2ee0d7fd JP |
52 | select HAVE_PERF_REGS |
53 | select HAVE_PERF_USER_STACK_DUMP | |
055b1212 | 54 | select HAVE_SYSCALL_TRACEPOINTS |
8c2c3df3 | 55 | select IRQ_DOMAIN |
fea2acaa | 56 | select MODULES_USE_ELF_RELA |
8c2c3df3 CM |
57 | select NO_BOOTMEM |
58 | select OF | |
59 | select OF_EARLY_FLATTREE | |
9bf14b7c | 60 | select OF_RESERVED_MEM |
8c2c3df3 | 61 | select PERF_USE_VMALLOC |
aa1e8ec1 CM |
62 | select POWER_RESET |
63 | select POWER_SUPPLY | |
8c2c3df3 CM |
64 | select RTC_LIB |
65 | select SPARSE_IRQ | |
7ac57a89 | 66 | select SYSCTL_EXCEPTION_TRACE |
6c81fe79 | 67 | select HAVE_CONTEXT_TRACKING |
8c2c3df3 CM |
68 | help |
69 | ARM 64-bit (AArch64) Linux support. | |
70 | ||
71 | config 64BIT | |
72 | def_bool y | |
73 | ||
74 | config ARCH_PHYS_ADDR_T_64BIT | |
75 | def_bool y | |
76 | ||
77 | config MMU | |
78 | def_bool y | |
79 | ||
ce816fa8 | 80 | config NO_IOPORT_MAP |
8c2c3df3 CM |
81 | def_bool y |
82 | ||
83 | config STACKTRACE_SUPPORT | |
84 | def_bool y | |
85 | ||
86 | config LOCKDEP_SUPPORT | |
87 | def_bool y | |
88 | ||
89 | config TRACE_IRQFLAGS_SUPPORT | |
90 | def_bool y | |
91 | ||
c209f799 | 92 | config RWSEM_XCHGADD_ALGORITHM |
8c2c3df3 CM |
93 | def_bool y |
94 | ||
95 | config GENERIC_HWEIGHT | |
96 | def_bool y | |
97 | ||
98 | config GENERIC_CSUM | |
99 | def_bool y | |
100 | ||
101 | config GENERIC_CALIBRATE_DELAY | |
102 | def_bool y | |
103 | ||
19e7640d | 104 | config ZONE_DMA |
8c2c3df3 CM |
105 | def_bool y |
106 | ||
107 | config ARCH_DMA_ADDR_T_64BIT | |
108 | def_bool y | |
109 | ||
110 | config NEED_DMA_MAP_STATE | |
111 | def_bool y | |
112 | ||
113 | config NEED_SG_DMA_LENGTH | |
114 | def_bool y | |
115 | ||
116 | config SWIOTLB | |
117 | def_bool y | |
118 | ||
119 | config IOMMU_HELPER | |
120 | def_bool SWIOTLB | |
121 | ||
4cfb3613 AB |
122 | config KERNEL_MODE_NEON |
123 | def_bool y | |
124 | ||
92cc15fc RH |
125 | config FIX_EARLYCON_MEM |
126 | def_bool y | |
127 | ||
8c2c3df3 CM |
128 | source "init/Kconfig" |
129 | ||
130 | source "kernel/Kconfig.freezer" | |
131 | ||
1ae90e79 CM |
132 | menu "Platform selection" |
133 | ||
134 | config ARCH_VEXPRESS | |
135 | bool "ARMv8 software model (Versatile Express)" | |
136 | select ARCH_REQUIRE_GPIOLIB | |
137 | select COMMON_CLK_VERSATILE | |
aa1e8ec1 | 138 | select POWER_RESET_VEXPRESS |
1ae90e79 CM |
139 | select VEXPRESS_CONFIG |
140 | help | |
141 | This enables support for the ARMv8 software model (Versatile | |
142 | Express). | |
8c2c3df3 | 143 | |
15942853 VK |
144 | config ARCH_XGENE |
145 | bool "AppliedMicro X-Gene SOC Family" | |
146 | help | |
147 | This enables support for AppliedMicro X-Gene SOC Family | |
148 | ||
8c2c3df3 CM |
149 | endmenu |
150 | ||
151 | menu "Bus support" | |
152 | ||
153 | config ARM_AMBA | |
154 | bool | |
155 | ||
156 | endmenu | |
157 | ||
158 | menu "Kernel Features" | |
159 | ||
e41ceed0 JL |
160 | choice |
161 | prompt "Page size" | |
162 | default ARM64_4K_PAGES | |
163 | help | |
164 | Page size (translation granule) configuration. | |
165 | ||
166 | config ARM64_4K_PAGES | |
167 | bool "4KB" | |
168 | help | |
169 | This feature enables 4KB pages support. | |
170 | ||
8c2c3df3 | 171 | config ARM64_64K_PAGES |
e41ceed0 | 172 | bool "64KB" |
8c2c3df3 CM |
173 | help |
174 | This feature enables 64KB pages support (4KB by default) | |
175 | allowing only two levels of page tables and faster TLB | |
176 | look-up. AArch32 emulation is not available when this feature | |
177 | is enabled. | |
178 | ||
e41ceed0 JL |
179 | endchoice |
180 | ||
181 | choice | |
182 | prompt "Virtual address space size" | |
183 | default ARM64_VA_BITS_39 if ARM64_4K_PAGES | |
184 | default ARM64_VA_BITS_42 if ARM64_64K_PAGES | |
185 | help | |
186 | Allows choosing one of multiple possible virtual address | |
187 | space sizes. The level of translation table is determined by | |
188 | a combination of page size and virtual address space size. | |
189 | ||
190 | config ARM64_VA_BITS_39 | |
191 | bool "39-bit" | |
192 | depends on ARM64_4K_PAGES | |
193 | ||
194 | config ARM64_VA_BITS_42 | |
195 | bool "42-bit" | |
196 | depends on ARM64_64K_PAGES | |
197 | ||
198 | endchoice | |
199 | ||
200 | config ARM64_VA_BITS | |
201 | int | |
202 | default 39 if ARM64_VA_BITS_39 | |
203 | default 42 if ARM64_VA_BITS_42 | |
204 | ||
205 | config ARM64_2_LEVELS | |
206 | def_bool y if ARM64_64K_PAGES && ARM64_VA_BITS_42 | |
207 | ||
208 | config ARM64_3_LEVELS | |
209 | def_bool y if ARM64_4K_PAGES && ARM64_VA_BITS_39 | |
210 | ||
a872013d WD |
211 | config CPU_BIG_ENDIAN |
212 | bool "Build big-endian kernel" | |
213 | help | |
214 | Say Y if you plan on running a kernel in big-endian mode. | |
215 | ||
8c2c3df3 CM |
216 | config SMP |
217 | bool "Symmetric Multi-Processing" | |
8c2c3df3 CM |
218 | help |
219 | This enables support for systems with more than one CPU. If | |
220 | you say N here, the kernel will run on single and | |
221 | multiprocessor machines, but will use only one CPU of a | |
222 | multiprocessor machine. If you say Y here, the kernel will run | |
223 | on many, but not all, single processor machines. On a single | |
224 | processor machine, the kernel will run faster if you say N | |
225 | here. | |
226 | ||
227 | If you don't know what to do here, say N. | |
228 | ||
f6e763b9 MB |
229 | config SCHED_MC |
230 | bool "Multi-core scheduler support" | |
231 | depends on SMP | |
232 | help | |
233 | Multi-core scheduler support improves the CPU scheduler's decision | |
234 | making when dealing with multi-core CPU chips at a cost of slightly | |
235 | increased overhead in some places. If unsure say N here. | |
236 | ||
237 | config SCHED_SMT | |
238 | bool "SMT scheduler support" | |
239 | depends on SMP | |
240 | help | |
241 | Improves the CPU scheduler's decision making when dealing with | |
242 | MultiThreading at a cost of slightly increased overhead in some | |
243 | places. If unsure say N here. | |
244 | ||
8c2c3df3 CM |
245 | config NR_CPUS |
246 | int "Maximum number of CPUs (2-32)" | |
247 | range 2 32 | |
248 | depends on SMP | |
15942853 | 249 | # These have to remain sorted largest to smallest |
62aceb8f | 250 | default "8" |
8c2c3df3 | 251 | |
9327e2c6 MR |
252 | config HOTPLUG_CPU |
253 | bool "Support for hot-pluggable CPUs" | |
254 | depends on SMP | |
255 | help | |
256 | Say Y here to experiment with turning CPUs off and on. CPUs | |
257 | can be controlled through /sys/devices/system/cpu. | |
258 | ||
8c2c3df3 CM |
259 | source kernel/Kconfig.preempt |
260 | ||
261 | config HZ | |
262 | int | |
263 | default 100 | |
264 | ||
265 | config ARCH_HAS_HOLES_MEMORYMODEL | |
266 | def_bool y if SPARSEMEM | |
267 | ||
268 | config ARCH_SPARSEMEM_ENABLE | |
269 | def_bool y | |
270 | select SPARSEMEM_VMEMMAP_ENABLE | |
271 | ||
272 | config ARCH_SPARSEMEM_DEFAULT | |
273 | def_bool ARCH_SPARSEMEM_ENABLE | |
274 | ||
275 | config ARCH_SELECT_MEMORY_MODEL | |
276 | def_bool ARCH_SPARSEMEM_ENABLE | |
277 | ||
278 | config HAVE_ARCH_PFN_VALID | |
279 | def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM | |
280 | ||
281 | config HW_PERF_EVENTS | |
282 | bool "Enable hardware performance counter support for perf events" | |
283 | depends on PERF_EVENTS | |
284 | default y | |
285 | help | |
286 | Enable hardware performance counter support for perf events. If | |
287 | disabled, perf events will use software events only. | |
288 | ||
084bd298 SC |
289 | config SYS_SUPPORTS_HUGETLBFS |
290 | def_bool y | |
291 | ||
292 | config ARCH_WANT_GENERAL_HUGETLB | |
293 | def_bool y | |
294 | ||
295 | config ARCH_WANT_HUGE_PMD_SHARE | |
296 | def_bool y if !ARM64_64K_PAGES | |
297 | ||
af074848 SC |
298 | config HAVE_ARCH_TRANSPARENT_HUGEPAGE |
299 | def_bool y | |
300 | ||
a41dc0e8 CM |
301 | config ARCH_HAS_CACHE_LINE_SIZE |
302 | def_bool y | |
303 | ||
8c2c3df3 CM |
304 | source "mm/Kconfig" |
305 | ||
aa42aa13 SS |
306 | config XEN_DOM0 |
307 | def_bool y | |
308 | depends on XEN | |
309 | ||
310 | config XEN | |
311 | bool "Xen guest support on ARM64 (EXPERIMENTAL)" | |
312 | depends on ARM64 && OF | |
83862ccf | 313 | select SWIOTLB_XEN |
aa42aa13 SS |
314 | help |
315 | Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64. | |
316 | ||
d03bb145 SC |
317 | config FORCE_MAX_ZONEORDER |
318 | int | |
319 | default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) | |
320 | default "11" | |
321 | ||
8c2c3df3 CM |
322 | endmenu |
323 | ||
324 | menu "Boot options" | |
325 | ||
326 | config CMDLINE | |
327 | string "Default kernel command string" | |
328 | default "" | |
329 | help | |
330 | Provide a set of default command-line options at build time by | |
331 | entering them here. As a minimum, you should specify the the | |
332 | root device (e.g. root=/dev/nfs). | |
333 | ||
334 | config CMDLINE_FORCE | |
335 | bool "Always use the default kernel command string" | |
336 | help | |
337 | Always use the default kernel command string, even if the boot | |
338 | loader passes other arguments to the kernel. | |
339 | This is useful if you cannot or don't want to change the | |
340 | command-line options your boot loader passes to the kernel. | |
341 | ||
f84d0275 MS |
342 | config EFI |
343 | bool "UEFI runtime support" | |
344 | depends on OF && !CPU_BIG_ENDIAN | |
345 | select LIBFDT | |
346 | select UCS2_STRING | |
347 | select EFI_PARAMS_FROM_FDT | |
348 | default y | |
349 | help | |
350 | This option provides support for runtime services provided | |
351 | by UEFI firmware (such as non-volatile variables, realtime | |
3c7f2550 MS |
352 | clock, and platform reset). A UEFI stub is also provided to |
353 | allow the kernel to be booted as an EFI application. This | |
354 | is only useful on systems that have UEFI firmware. | |
f84d0275 | 355 | |
a28e3f4b YL |
356 | config DMI |
357 | bool "Enable support for SMBIOS (DMI) tables" | |
358 | depends on EFI | |
359 | default y | |
360 | help | |
361 | This enables SMBIOS/DMI feature for systems. | |
362 | ||
363 | This option is only useful on systems that have UEFI firmware. | |
364 | However, even with this option, the resultant kernel should | |
365 | continue to boot on existing non-UEFI platforms. | |
366 | ||
8c2c3df3 CM |
367 | endmenu |
368 | ||
369 | menu "Userspace binary formats" | |
370 | ||
371 | source "fs/Kconfig.binfmt" | |
372 | ||
373 | config COMPAT | |
374 | bool "Kernel support for 32-bit EL0" | |
375 | depends on !ARM64_64K_PAGES | |
376 | select COMPAT_BINFMT_ELF | |
af1839eb | 377 | select HAVE_UID16 |
84b9e9b4 | 378 | select OLD_SIGSUSPEND3 |
51682036 | 379 | select COMPAT_OLD_SIGACTION |
8c2c3df3 CM |
380 | help |
381 | This option enables support for a 32-bit EL0 running under a 64-bit | |
382 | kernel at EL1. AArch32-specific components such as system calls, | |
383 | the user helper functions, VFP support and the ptrace interface are | |
384 | handled appropriately by the kernel. | |
385 | ||
386 | If you want to execute 32-bit userspace applications, say Y. | |
387 | ||
388 | config SYSVIPC_COMPAT | |
389 | def_bool y | |
390 | depends on COMPAT && SYSVIPC | |
391 | ||
392 | endmenu | |
393 | ||
166936ba LP |
394 | menu "Power management options" |
395 | ||
396 | source "kernel/power/Kconfig" | |
397 | ||
398 | config ARCH_SUSPEND_POSSIBLE | |
399 | def_bool y | |
400 | ||
401 | config ARM64_CPU_SUSPEND | |
402 | def_bool PM_SLEEP | |
403 | ||
404 | endmenu | |
405 | ||
1307220d LP |
406 | menu "CPU Power Management" |
407 | ||
408 | source "drivers/cpuidle/Kconfig" | |
409 | ||
52e7e816 RH |
410 | source "drivers/cpufreq/Kconfig" |
411 | ||
412 | endmenu | |
413 | ||
8c2c3df3 CM |
414 | source "net/Kconfig" |
415 | ||
416 | source "drivers/Kconfig" | |
417 | ||
f84d0275 MS |
418 | source "drivers/firmware/Kconfig" |
419 | ||
8c2c3df3 CM |
420 | source "fs/Kconfig" |
421 | ||
c3eb5b14 MZ |
422 | source "arch/arm64/kvm/Kconfig" |
423 | ||
8c2c3df3 CM |
424 | source "arch/arm64/Kconfig.debug" |
425 | ||
426 | source "security/Kconfig" | |
427 | ||
428 | source "crypto/Kconfig" | |
2c98833a AB |
429 | if CRYPTO |
430 | source "arch/arm64/crypto/Kconfig" | |
431 | endif | |
8c2c3df3 CM |
432 | |
433 | source "lib/Kconfig" |