1 # SPDX-License-Identifier: GPL-2.0 !! 1 # SPDX-License-Identifier: GPL-2.0-only
2 config ARM !! 2 config 64BIT
>> 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
>> 4 default "$(ARCH)" = "sparc64"
>> 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
>> 13 config SPARC
3 bool 14 bool
4 default y 15 default y
5 select ARCH_32BIT_OFF_T !! 16 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
6 select ARCH_CORRECT_STACKTRACE_ON_KRET !! 17 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_HAS_BINFMT_FLAT !! 18 select DMA_OPS
8 select ARCH_HAS_CPU_CACHE_ALIASING !! 19 select OF
9 select ARCH_HAS_CPU_FINALIZE_INIT if M !! 20 select OF_PROMTREE
10 select ARCH_HAS_CURRENT_STACK_POINTER !! 21 select HAVE_ASM_MODVERSIONS
11 select ARCH_HAS_DEBUG_VIRTUAL if MMU !! 22 select HAVE_IDE
12 select ARCH_HAS_DMA_ALLOC if MMU !! 23 select HAVE_OPROFILE
13 select ARCH_HAS_DMA_OPS !! 24 select HAVE_ARCH_KGDB if !SMP || SPARC64
14 select ARCH_HAS_DMA_WRITE_COMBINE if ! !! 25 select HAVE_ARCH_TRACEHOOK
15 select ARCH_HAS_ELF_RANDOMIZE !! 26 select HAVE_ARCH_SECCOMP if SPARC64
16 select ARCH_HAS_FORTIFY_SOURCE !! 27 select HAVE_EXIT_THREAD
17 select ARCH_HAS_KEEPINITRD !! 28 select HAVE_PCI
18 select ARCH_HAS_KCOV !! 29 select SYSCTL_EXCEPTION_TRACE
19 select ARCH_HAS_MEMBARRIER_SYNC_CORE !! 30 select RTC_CLASS
20 select ARCH_HAS_NON_OVERLAPPING_ADDRES !! 31 select RTC_DRV_M48T59
21 select ARCH_HAS_PTE_SPECIAL if ARM_LPA !! 32 select RTC_SYSTOHC
22 select ARCH_HAS_SETUP_DMA_OPS !! 33 select HAVE_ARCH_JUMP_LABEL if SPARC64
23 select ARCH_HAS_SET_MEMORY <<
24 select ARCH_STACKWALK <<
25 select ARCH_HAS_STRICT_KERNEL_RWX if M <<
26 select ARCH_HAS_STRICT_MODULE_RWX if M <<
27 select ARCH_HAS_SYNC_DMA_FOR_DEVICE <<
28 select ARCH_HAS_SYNC_DMA_FOR_CPU <<
29 select ARCH_HAS_TEARDOWN_DMA_OPS if MM <<
30 select ARCH_HAS_TICK_BROADCAST if GENE <<
31 select ARCH_HAVE_NMI_SAFE_CMPXCHG if C <<
32 select ARCH_HAS_GCOV_PROFILE_ALL <<
33 select ARCH_KEEP_MEMBLOCK <<
34 select ARCH_HAS_UBSAN <<
35 select ARCH_MIGHT_HAVE_PC_PARPORT <<
36 select ARCH_OPTIONAL_KERNEL_RWX if ARC <<
37 select ARCH_OPTIONAL_KERNEL_RWX_DEFAUL <<
38 select ARCH_NEED_CMPXCHG_1_EMU if CPU_ <<
39 select ARCH_SUPPORTS_ATOMIC_RMW <<
40 select ARCH_SUPPORTS_CFI_CLANG <<
41 select ARCH_SUPPORTS_HUGETLBFS if ARM_ <<
42 select ARCH_SUPPORTS_PER_VMA_LOCK <<
43 select ARCH_USE_BUILTIN_BSWAP <<
44 select ARCH_USE_CMPXCHG_LOCKREF <<
45 select ARCH_USE_MEMTEST <<
46 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
47 select ARCH_WANT_GENERAL_HUGETLB <<
48 select ARCH_WANT_IPC_PARSE_VERSION <<
49 select ARCH_WANT_LD_ORPHAN_WARN <<
50 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK <<
51 select BUILDTIME_TABLE_SORT if MMU <<
52 select COMMON_CLK if !(ARCH_RPC || ARC <<
53 select CLONE_BACKWARDS <<
54 select CPU_PM if SUSPEND || CPU_IDLE <<
55 select DCACHE_WORD_ACCESS if HAVE_EFFI <<
56 select DMA_DECLARE_COHERENT <<
57 select DMA_GLOBAL_POOL if !MMU <<
58 select DMA_NONCOHERENT_MMAP if MMU <<
59 select EDAC_SUPPORT <<
60 select EDAC_ATOMIC_SCRUB <<
61 select GENERIC_ALLOCATOR <<
62 select GENERIC_ARCH_TOPOLOGY if ARM_CP <<
63 select GENERIC_ATOMIC64 if CPU_V7M || <<
64 select GENERIC_CLOCKEVENTS_BROADCAST i <<
65 select GENERIC_IRQ_IPI if SMP <<
66 select GENERIC_CPU_AUTOPROBE <<
67 select GENERIC_CPU_DEVICES <<
68 select GENERIC_EARLY_IOREMAP <<
69 select GENERIC_IDLE_POLL_SETUP <<
70 select GENERIC_IRQ_MULTI_HANDLER <<
71 select GENERIC_IRQ_PROBE <<
72 select GENERIC_IRQ_SHOW 34 select GENERIC_IRQ_SHOW
73 select GENERIC_IRQ_SHOW_LEVEL !! 35 select ARCH_WANT_IPC_PARSE_VERSION
74 select GENERIC_LIB_DEVMEM_IS_ALLOWED <<
75 select GENERIC_PCI_IOMAP 36 select GENERIC_PCI_IOMAP
76 select GENERIC_SCHED_CLOCK !! 37 select HAVE_NMI_WATCHDOG if SPARC64
>> 38 select HAVE_CBPF_JIT if SPARC32
>> 39 select HAVE_EBPF_JIT if SPARC64
>> 40 select HAVE_DEBUG_BUGVERBOSE
77 select GENERIC_SMP_IDLE_THREAD 41 select GENERIC_SMP_IDLE_THREAD
78 select HARDIRQS_SW_RESEND !! 42 select GENERIC_STRNCPY_FROM_USER
79 select HAS_IOPORT !! 43 select GENERIC_STRNLEN_USER
80 select HAVE_ARCH_AUDITSYSCALL if AEABI !! 44 select MODULES_USE_ELF_RELA
81 select HAVE_ARCH_BITREVERSE if (CPU_32 <<
82 select HAVE_ARCH_JUMP_LABEL if !XIP_KE <<
83 select HAVE_ARCH_KFENCE if MMU && !XIP <<
84 select HAVE_ARCH_KGDB if !CPU_ENDIAN_B <<
85 select HAVE_ARCH_KASAN if MMU && !XIP_ <<
86 select HAVE_ARCH_KASAN_VMALLOC if HAVE <<
87 select HAVE_ARCH_MMAP_RND_BITS if MMU <<
88 select HAVE_ARCH_PFN_VALID <<
89 select HAVE_ARCH_SECCOMP <<
90 select HAVE_ARCH_SECCOMP_FILTER if AEA <<
91 select HAVE_ARCH_STACKLEAK <<
92 select HAVE_ARCH_THREAD_STRUCT_WHITELI <<
93 select HAVE_ARCH_TRACEHOOK <<
94 select HAVE_ARCH_TRANSPARENT_HUGEPAGE <<
95 select HAVE_ARM_SMCCC if CPU_V7 <<
96 select HAVE_EBPF_JIT if !CPU_ENDIAN_BE <<
97 select HAVE_CONTEXT_TRACKING_USER <<
98 select HAVE_C_RECORDMCOUNT <<
99 select HAVE_BUILDTIME_MCOUNT_SORT <<
100 select HAVE_DEBUG_KMEMLEAK if !XIP_KER <<
101 select HAVE_DMA_CONTIGUOUS if MMU <<
102 select HAVE_DYNAMIC_FTRACE if !XIP_KER <<
103 select HAVE_DYNAMIC_FTRACE_WITH_REGS i <<
104 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
105 select HAVE_EXIT_THREAD <<
106 select HAVE_GUP_FAST if ARM_LPAE <<
107 select HAVE_FTRACE_MCOUNT_RECORD if !X <<
108 select HAVE_FUNCTION_ERROR_INJECTION <<
109 select HAVE_FUNCTION_GRAPH_TRACER <<
110 select HAVE_FUNCTION_TRACER if !XIP_KE <<
111 select HAVE_GCC_PLUGINS <<
112 select HAVE_HW_BREAKPOINT if PERF_EVEN <<
113 select HAVE_IRQ_TIME_ACCOUNTING <<
114 select HAVE_KERNEL_GZIP <<
115 select HAVE_KERNEL_LZ4 <<
116 select HAVE_KERNEL_LZMA <<
117 select HAVE_KERNEL_LZO <<
118 select HAVE_KERNEL_XZ <<
119 select HAVE_KPROBES if !XIP_KERNEL && <<
120 select HAVE_KRETPROBES if HAVE_KPROBES <<
121 select HAVE_LD_DEAD_CODE_DATA_ELIMINAT <<
122 select HAVE_MOD_ARCH_SPECIFIC <<
123 select HAVE_NMI <<
124 select HAVE_OPTPROBES if !THUMB2_KERNE <<
125 select HAVE_PAGE_SIZE_4KB <<
126 select HAVE_PCI if MMU <<
127 select HAVE_PERF_EVENTS <<
128 select HAVE_PERF_REGS <<
129 select HAVE_PERF_USER_STACK_DUMP <<
130 select MMU_GATHER_RCU_TABLE_FREE if SM <<
131 select HAVE_REGS_AND_STACK_ACCESS_API <<
132 select HAVE_RSEQ <<
133 select HAVE_STACKPROTECTOR <<
134 select HAVE_SYSCALL_TRACEPOINTS <<
135 select HAVE_UID16 <<
136 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
137 select HOTPLUG_CORE_SYNC_DEAD if HOTPL <<
138 select IRQ_FORCED_THREADING <<
139 select LOCK_MM_AND_FIND_VMA <<
140 select MODULES_USE_ELF_REL <<
141 select NEED_DMA_MAP_STATE <<
142 select OF_EARLY_FLATTREE if OF <<
143 select OLD_SIGACTION <<
144 select OLD_SIGSUSPEND3 <<
145 select PCI_DOMAINS_GENERIC if PCI <<
146 select PCI_SYSCALL if PCI 45 select PCI_SYSCALL if PCI
147 select PERF_USE_VMALLOC !! 46 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
148 select RTC_LIB !! 47 select ODD_RT_SIGACTION
149 select SPARSE_IRQ if !(ARCH_FOOTBRIDGE !! 48 select OLD_SIGSUSPEND
150 select SYS_SUPPORTS_APM_EMULATION !! 49 select CPU_NO_EFFICIENT_FFS
151 select THREAD_INFO_IN_TASK !! 50 select LOCKDEP_SMALL if LOCKDEP
152 select TIMER_OF if OF !! 51 select NEED_DMA_MAP_STATE
153 select HAVE_ARCH_VMAP_STACK if MMU && <<
154 select TRACE_IRQFLAGS_SUPPORT if !CPU_ <<
155 select USE_OF if !(ARCH_FOOTBRIDGE || <<
156 # Above selects are sorted alphabetica <<
157 # according to that. Thanks. <<
158 help <<
159 The ARM series is a line of low-powe <<
160 licensed by ARM Ltd and targeted at <<
161 handhelds such as the Compaq IPAQ. <<
162 manufactured, but legacy ARM-based P <<
163 Europe. There is an ARM Linux proje <<
164 <http://www.arm.linux.org.uk/>. <<
165 <<
166 config ARM_HAS_GROUP_RELOCS <<
167 def_bool y <<
168 depends on !LD_IS_LLD || LLD_VERSION > <<
169 depends on !COMPILE_TEST <<
170 help <<
171 Whether or not to use R_ARM_ALU_PC_G <<
172 relocations, which have been around <<
173 supported in LLD until version 14. T <<
174 which is usually sufficient, but not <<
175 this feature when doing compile test <<
176 <<
177 config ARM_DMA_USE_IOMMU <<
178 bool <<
179 select NEED_SG_DMA_LENGTH 52 select NEED_SG_DMA_LENGTH
>> 53 select SET_FS
180 54
181 if ARM_DMA_USE_IOMMU !! 55 config SPARC32
182 !! 56 def_bool !64BIT
183 config ARM_DMA_IOMMU_ALIGNMENT !! 57 select ARCH_32BIT_OFF_T
184 int "Maximum PAGE_SIZE order of alignm !! 58 select ARCH_HAS_SYNC_DMA_FOR_CPU
185 range 4 9 !! 59 select GENERIC_ATOMIC64
186 default 8 !! 60 select CLZ_TAB
187 help !! 61 select HAVE_UID16
188 DMA mapping framework by default ali !! 62 select OLD_SIGACTION
189 PAGE_SIZE order which is greater tha <<
190 size. This works well for buffers up <<
191 for larger buffers it just a waste o <<
192 relatively small addressing window ( <<
193 virtual space with just a few alloca <<
194 <<
195 With this parameter you can specify <<
196 DMA IOMMU buffers. Larger buffers wi <<
197 specified order. The order is expres <<
198 by the PAGE_SIZE. <<
199 <<
200 endif <<
201 <<
202 config SYS_SUPPORTS_APM_EMULATION <<
203 bool <<
204 63
205 config HAVE_TCM !! 64 config SPARC64
206 bool !! 65 def_bool 64BIT
207 select GENERIC_ALLOCATOR !! 66 select HAVE_FUNCTION_TRACER
>> 67 select HAVE_FUNCTION_GRAPH_TRACER
>> 68 select HAVE_KRETPROBES
>> 69 select HAVE_KPROBES
>> 70 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 71 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 72 select HAVE_DYNAMIC_FTRACE
>> 73 select HAVE_FTRACE_MCOUNT_RECORD
>> 74 select HAVE_SYSCALL_TRACEPOINTS
>> 75 select HAVE_CONTEXT_TRACKING
>> 76 select HAVE_TIF_NOHZ
>> 77 select HAVE_DEBUG_KMEMLEAK
>> 78 select IOMMU_HELPER
>> 79 select SPARSE_IRQ
>> 80 select RTC_DRV_CMOS
>> 81 select RTC_DRV_BQ4802
>> 82 select RTC_DRV_SUN4V
>> 83 select RTC_DRV_STARFIRE
>> 84 select HAVE_PERF_EVENTS
>> 85 select PERF_USE_VMALLOC
>> 86 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 87 select HAVE_C_RECORDMCOUNT
>> 88 select HAVE_ARCH_AUDITSYSCALL
>> 89 select ARCH_SUPPORTS_ATOMIC_RMW
>> 90 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 91 select HAVE_NMI
>> 92 select HAVE_REGS_AND_STACK_ACCESS_API
>> 93 select ARCH_USE_QUEUED_RWLOCKS
>> 94 select ARCH_USE_QUEUED_SPINLOCKS
>> 95 select GENERIC_TIME_VSYSCALL
>> 96 select ARCH_CLOCKSOURCE_DATA
>> 97 select ARCH_HAS_PTE_SPECIAL
>> 98 select PCI_DOMAINS if PCI
>> 99 select ARCH_HAS_GIGANTIC_PAGE
208 100
209 config HAVE_PROC_CPU !! 101 config ARCH_PROC_KCORE_TEXT
210 bool !! 102 def_bool y
211 103
212 config NO_IOPORT_MAP !! 104 config CPU_BIG_ENDIAN
213 bool !! 105 def_bool y
214 106
215 config SBUS !! 107 config ARCH_ATU
216 bool 108 bool
>> 109 default y if SPARC64
217 110
218 config STACKTRACE_SUPPORT 111 config STACKTRACE_SUPPORT
219 bool 112 bool
220 default y !! 113 default y if SPARC64
221 114
222 config LOCKDEP_SUPPORT 115 config LOCKDEP_SUPPORT
223 bool 116 bool
224 default y !! 117 default y if SPARC64
225 <<
226 config ARCH_HAS_ILOG2_U32 <<
227 bool <<
228 <<
229 config ARCH_HAS_ILOG2_U64 <<
230 bool <<
231 <<
232 config ARCH_HAS_BANDGAP <<
233 bool <<
234 118
235 config FIX_EARLYCON_MEM !! 119 config ARCH_HIBERNATION_POSSIBLE
236 def_bool y if MMU !! 120 def_bool y if SPARC64
237 <<
238 config GENERIC_HWEIGHT <<
239 bool <<
240 default y <<
241 <<
242 config GENERIC_CALIBRATE_DELAY <<
243 bool <<
244 default y <<
245 <<
246 config ARCH_MAY_HAVE_PC_FDC <<
247 bool <<
248 <<
249 config ARCH_SUPPORTS_UPROBES <<
250 def_bool y <<
251 <<
252 config GENERIC_ISA_DMA <<
253 bool <<
254 <<
255 config FIQ <<
256 bool <<
257 121
258 config ARCH_MTD_XIP !! 122 config AUDIT_ARCH
259 bool 123 bool
260 <<
261 config ARM_PATCH_PHYS_VIRT <<
262 bool "Patch physical to virtual transl <<
263 default y 124 default y
264 depends on MMU <<
265 help <<
266 Patch phys-to-virt and virt-to-phys <<
267 boot and module load time according <<
268 kernel in system memory. <<
269 125
270 This can only be used with non-XIP M !! 126 config HAVE_SETUP_PER_CPU_AREA
271 of physical memory is at a 2 MiB bou !! 127 def_bool y if SPARC64
272 128
273 Only disable this option if you know !! 129 config NEED_PER_CPU_EMBED_FIRST_CHUNK
274 this feature (eg, building a kernel !! 130 def_bool y if SPARC64
275 you need to shrink the kernel to the <<
276 131
277 config NEED_MACH_IO_H !! 132 config NEED_PER_CPU_PAGE_FIRST_CHUNK
278 bool !! 133 def_bool y if SPARC64
279 help <<
280 Select this when mach/io.h is requir <<
281 definitions for this platform. The <<
282 be avoided when possible. <<
283 <<
284 config NEED_MACH_MEMORY_H <<
285 bool <<
286 help <<
287 Select this when mach/memory.h is re <<
288 definitions for this platform. The <<
289 be avoided when possible. <<
290 <<
291 config PHYS_OFFSET <<
292 hex "Physical address of main memory" <<
293 depends on !ARM_PATCH_PHYS_VIRT || !AU <<
294 default DRAM_BASE if !MMU <<
295 default 0x00000000 if ARCH_FOOTBRIDGE <<
296 default 0x10000000 if ARCH_OMAP1 || AR <<
297 default 0xa0000000 if ARCH_PXA <<
298 default 0xc0000000 if ARCH_EP93XX || A <<
299 default 0 <<
300 help <<
301 Please provide the physical address <<
302 location of main memory in your syst <<
303 <<
304 config GENERIC_BUG <<
305 def_bool y <<
306 depends on BUG <<
307 <<
308 config PGTABLE_LEVELS <<
309 int <<
310 default 3 if ARM_LPAE <<
311 default 2 <<
312 <<
313 menu "System Type" <<
314 134
315 config MMU 135 config MMU
316 bool "MMU-based Paged Memory Managemen <<
317 default y <<
318 help <<
319 Select if you want MMU-based virtual <<
320 support by paged memory management. <<
321 <<
322 config ARM_SINGLE_ARMV7M <<
323 def_bool !MMU <<
324 select ARM_NVIC <<
325 select CPU_V7M <<
326 select NO_IOPORT_MAP <<
327 <<
328 config ARCH_MMAP_RND_BITS_MIN <<
329 default 8 <<
330 <<
331 config ARCH_MMAP_RND_BITS_MAX <<
332 default 14 if PAGE_OFFSET=0x40000000 <<
333 default 15 if PAGE_OFFSET=0x80000000 <<
334 default 16 <<
335 <<
336 config ARCH_MULTIPLATFORM <<
337 bool "Require kernel to be portable to <<
338 depends on MMU && !(ARCH_FOOTBRIDGE || <<
339 default y <<
340 help <<
341 In general, all Arm machines can be <<
342 kernel image, covering either Armv4/ <<
343 <<
344 However, some configuration options <<
345 specific physical addresses or enabl <<
346 break other machines. <<
347 <<
348 Selecting N here allows using those <<
349 DEBUG_UNCOMPRESS, XIP_KERNEL and ZBO <<
350 <<
351 source "arch/arm/Kconfig.platforms" <<
352 <<
353 # <<
354 # This is sorted alphabetically by mach-* path <<
355 # Kconfigs may be included either alphabetical <<
356 # plat- suffix) or along side the correspondin <<
357 # <<
358 source "arch/arm/mach-actions/Kconfig" <<
359 <<
360 source "arch/arm/mach-alpine/Kconfig" <<
361 <<
362 source "arch/arm/mach-artpec/Kconfig" <<
363 <<
364 source "arch/arm/mach-aspeed/Kconfig" <<
365 <<
366 source "arch/arm/mach-at91/Kconfig" <<
367 <<
368 source "arch/arm/mach-axxia/Kconfig" <<
369 <<
370 source "arch/arm/mach-bcm/Kconfig" <<
371 <<
372 source "arch/arm/mach-berlin/Kconfig" <<
373 <<
374 source "arch/arm/mach-clps711x/Kconfig" <<
375 <<
376 source "arch/arm/mach-davinci/Kconfig" <<
377 <<
378 source "arch/arm/mach-digicolor/Kconfig" <<
379 <<
380 source "arch/arm/mach-dove/Kconfig" <<
381 <<
382 source "arch/arm/mach-ep93xx/Kconfig" <<
383 <<
384 source "arch/arm/mach-exynos/Kconfig" <<
385 <<
386 source "arch/arm/mach-footbridge/Kconfig" <<
387 <<
388 source "arch/arm/mach-gemini/Kconfig" <<
389 <<
390 source "arch/arm/mach-highbank/Kconfig" <<
391 <<
392 source "arch/arm/mach-hisi/Kconfig" <<
393 <<
394 source "arch/arm/mach-hpe/Kconfig" <<
395 <<
396 source "arch/arm/mach-imx/Kconfig" <<
397 <<
398 source "arch/arm/mach-ixp4xx/Kconfig" <<
399 <<
400 source "arch/arm/mach-keystone/Kconfig" <<
401 <<
402 source "arch/arm/mach-lpc32xx/Kconfig" <<
403 <<
404 source "arch/arm/mach-mediatek/Kconfig" <<
405 <<
406 source "arch/arm/mach-meson/Kconfig" <<
407 <<
408 source "arch/arm/mach-milbeaut/Kconfig" <<
409 <<
410 source "arch/arm/mach-mmp/Kconfig" <<
411 <<
412 source "arch/arm/mach-mstar/Kconfig" <<
413 <<
414 source "arch/arm/mach-mv78xx0/Kconfig" <<
415 <<
416 source "arch/arm/mach-mvebu/Kconfig" <<
417 <<
418 source "arch/arm/mach-mxs/Kconfig" <<
419 <<
420 source "arch/arm/mach-nomadik/Kconfig" <<
421 <<
422 source "arch/arm/mach-npcm/Kconfig" <<
423 <<
424 source "arch/arm/mach-omap1/Kconfig" <<
425 <<
426 source "arch/arm/mach-omap2/Kconfig" <<
427 <<
428 source "arch/arm/mach-orion5x/Kconfig" <<
429 <<
430 source "arch/arm/mach-pxa/Kconfig" <<
431 <<
432 source "arch/arm/mach-qcom/Kconfig" <<
433 <<
434 source "arch/arm/mach-realtek/Kconfig" <<
435 <<
436 source "arch/arm/mach-rpc/Kconfig" <<
437 <<
438 source "arch/arm/mach-rockchip/Kconfig" <<
439 <<
440 source "arch/arm/mach-s3c/Kconfig" <<
441 <<
442 source "arch/arm/mach-s5pv210/Kconfig" <<
443 <<
444 source "arch/arm/mach-sa1100/Kconfig" <<
445 <<
446 source "arch/arm/mach-shmobile/Kconfig" <<
447 <<
448 source "arch/arm/mach-socfpga/Kconfig" <<
449 <<
450 source "arch/arm/mach-spear/Kconfig" <<
451 <<
452 source "arch/arm/mach-sti/Kconfig" <<
453 <<
454 source "arch/arm/mach-stm32/Kconfig" <<
455 <<
456 source "arch/arm/mach-sunxi/Kconfig" <<
457 <<
458 source "arch/arm/mach-tegra/Kconfig" <<
459 <<
460 source "arch/arm/mach-ux500/Kconfig" <<
461 <<
462 source "arch/arm/mach-versatile/Kconfig" <<
463 <<
464 source "arch/arm/mach-vt8500/Kconfig" <<
465 <<
466 source "arch/arm/mach-zynq/Kconfig" <<
467 <<
468 # ARMv7-M architecture <<
469 config ARCH_LPC18XX <<
470 bool "NXP LPC18xx/LPC43xx" <<
471 depends on ARM_SINGLE_ARMV7M <<
472 select ARCH_HAS_RESET_CONTROLLER <<
473 select ARM_AMBA <<
474 select CLKSRC_LPC32XX <<
475 select PINCTRL <<
476 help <<
477 Support for NXP's LPC18xx Cortex-M3 <<
478 high performance microcontrollers. <<
479 <<
480 config ARCH_MPS2 <<
481 bool "ARM MPS2 platform" <<
482 depends on ARM_SINGLE_ARMV7M <<
483 select ARM_AMBA <<
484 select CLKSRC_MPS2 <<
485 help <<
486 Support for Cortex-M Prototyping Sys <<
487 with a range of available cores like <<
488 <<
489 Please, note that depends which Appl <<
490 for the platform may vary, so adjust <<
491 <<
492 # Definitions to make life easier <<
493 config ARCH_ACORN <<
494 bool <<
495 <<
496 config PLAT_ORION <<
497 bool <<
498 select CLKSRC_MMIO <<
499 select GENERIC_IRQ_CHIP <<
500 select IRQ_DOMAIN <<
501 <<
502 config PLAT_ORION_LEGACY <<
503 bool 136 bool
504 select PLAT_ORION !! 137 default y
505 138
506 config PLAT_VERSATILE !! 139 config HIGHMEM
507 bool 140 bool
>> 141 default y if SPARC32
>> 142 select KMAP_LOCAL
508 143
509 source "arch/arm/mm/Kconfig" !! 144 config ZONE_DMA
510 <<
511 config IWMMXT <<
512 bool "Enable iWMMXt support" <<
513 depends on CPU_XSCALE || CPU_XSC3 || C <<
514 default y if PXA27x || PXA3xx || ARCH_ <<
515 help <<
516 Enable support for iWMMXt context sw <<
517 running on a CPU that supports it. <<
518 <<
519 if !MMU <<
520 source "arch/arm/Kconfig-nommu" <<
521 endif <<
522 <<
523 config PJ4B_ERRATA_4742 <<
524 bool "PJ4B Errata 4742: IDLE Wake Up C <<
525 depends on CPU_PJ4B && MACH_ARMADA_370 <<
526 default y <<
527 help <<
528 When coming out of either a Wait for <<
529 Event (WFE) IDLE states, a specific <<
530 the retiring WFI/WFE instructions an <<
531 instructions. This sensitivity can <<
532 Workaround: <<
533 The software must insert either a Da <<
534 or Data Memory Barrier (DMB) command <<
535 instruction <<
536 <<
537 config ARM_ERRATA_326103 <<
538 bool "ARM errata: FSR write bit incorr <<
539 depends on CPU_V6 <<
540 help <<
541 Executing a SWP instruction to read- <<
542 of the FSR on the ARM 1136 prior to <<
543 treat the access as a read, preventi <<
544 causing the faulting task to liveloc <<
545 <<
546 config ARM_ERRATA_411920 <<
547 bool "ARM errata: Invalidation of the <<
548 depends on CPU_V6 || CPU_V6K <<
549 help <<
550 Invalidation of the Instruction Cach <<
551 fail. This erratum is present in 113 <<
552 It does not affect the MPCore. This <<
553 recommended workaround. <<
554 <<
555 config ARM_ERRATA_430973 <<
556 bool "ARM errata: Stale prediction on <<
557 depends on CPU_V7 <<
558 help <<
559 This option enables the workaround f <<
560 r1p* erratum. If a code sequence con <<
561 interworking branch is replaced with <<
562 same virtual address, whether due to <<
563 to physical address re-mapping, Cort <<
564 stale interworking branch prediction <<
565 executing the new code sequence in t <<
566 The workaround enables the BTB/BTAC <<
567 and also flushes the branch target c <<
568 Note that setting specific bits in t <<
569 available in non-secure mode. <<
570 <<
571 config ARM_ERRATA_458693 <<
572 bool "ARM errata: Processor deadlock w <<
573 depends on CPU_V7 <<
574 depends on !ARCH_MULTIPLATFORM <<
575 help <<
576 This option enables the workaround f <<
577 erratum. For very specific sequences <<
578 possible for a hazard condition inte <<
579 be incorrectly associated with a dif <<
580 hazard might then cause a processor <<
581 the L1 caching of the NEON accesses <<
582 in the ACTLR register. Note that set <<
583 register may not be available in non <<
584 available on a multiplatform kernel. <<
585 bootloader instead. <<
586 <<
587 config ARM_ERRATA_460075 <<
588 bool "ARM errata: Data written to the <<
589 depends on CPU_V7 <<
590 depends on !ARCH_MULTIPLATFORM <<
591 help <<
592 This option enables the workaround f <<
593 erratum. Any asynchronous access to <<
594 situation in which recent store tran <<
595 and overwritten with stale memory co <<
596 workaround disables the write-alloca <<
597 ACTLR register. Note that setting sp <<
598 may not be available in non-secure m <<
599 a multiplatform kernel. This should <<
600 instead. <<
601 <<
602 config ARM_ERRATA_742230 <<
603 bool "ARM errata: DMB operation may be <<
604 depends on CPU_V7 && SMP <<
605 depends on !ARCH_MULTIPLATFORM <<
606 help <<
607 This option enables the workaround f <<
608 (r1p0..r2p2) erratum. Under rare cir <<
609 between two write operations may not <<
610 ordering of the two writes. This wor <<
611 the diagnostic register of the Corte <<
612 instruction to behave as a DSB, ensu <<
613 the two writes. Note that setting sp <<
614 register may not be available in non <<
615 available on a multiplatform kernel. <<
616 bootloader instead. <<
617 <<
618 config ARM_ERRATA_742231 <<
619 bool "ARM errata: Incorrect hazard han <<
620 depends on CPU_V7 && SMP <<
621 depends on !ARCH_MULTIPLATFORM <<
622 help <<
623 This option enables the workaround f <<
624 (r2p0..r2p2) erratum. Under certain <<
625 Cortex-A9 MPCore micro-architecture, <<
626 accessing some data located in the s <<
627 data due to bad handling of the addr <<
628 replaced from one of the CPUs at the <<
629 accessing it. This workaround sets s <<
630 register of the Cortex-A9 which redu <<
631 capabilities of the processor. Note <<
632 diagnostics register may not be avai <<
633 is not available on a multiplatform <<
634 the bootloader instead. <<
635 <<
636 config ARM_ERRATA_643719 <<
637 bool "ARM errata: LoUIS bit field in C <<
638 depends on CPU_V7 && SMP <<
639 default y <<
640 help <<
641 This option enables the workaround f <<
642 r1p0) erratum. On affected cores the <<
643 register returns zero when it should <<
644 corrects this value, ensuring cache <<
645 it behave as intended and avoiding d <<
646 <<
647 config ARM_ERRATA_720789 <<
648 bool "ARM errata: TLBIASIDIS and TLBIM <<
649 depends on CPU_V7 <<
650 help <<
651 This option enables the workaround f <<
652 r2p0) erratum. A faulty ASID can be <<
653 broadcasted CP15 TLB maintenance ope <<
654 As a consequence of this erratum, so <<
655 invalidated are not, resulting in an <<
656 tables. The workaround changes the T <<
657 entries regardless of the ASID. <<
658 <<
659 config ARM_ERRATA_743622 <<
660 bool "ARM errata: Faulty hazard checki <<
661 depends on CPU_V7 <<
662 depends on !ARCH_MULTIPLATFORM <<
663 help <<
664 This option enables the workaround f <<
665 (r2p*) erratum. Under very rare cond <<
666 optimisation in the Cortex-A9 Store <<
667 corruption. This workaround sets a s <<
668 register of the Cortex-A9 which disa <<
669 optimisation, preventing the defect <<
670 visible impact on the overall perfor <<
671 processor. Note that setting specifi <<
672 may not be available in non-secure m <<
673 multiplatform kernel. This should be <<
674 <<
675 config ARM_ERRATA_751472 <<
676 bool "ARM errata: Interrupted ICIALLUI <<
677 depends on CPU_V7 <<
678 depends on !ARCH_MULTIPLATFORM <<
679 help <<
680 This option enables the workaround f <<
681 to r3p0) erratum. An interrupted ICI <<
682 completion of a following broadcaste <<
683 operation is received by a CPU befor <<
684 potentially leading to corrupted ent <<
685 Note that setting specific bits in t <<
686 not be available in non-secure mode <<
687 a multiplatform kernel. This should <<
688 instead. <<
689 <<
690 config ARM_ERRATA_754322 <<
691 bool "ARM errata: possible faulty MMU <<
692 depends on CPU_V7 <<
693 help <<
694 This option enables the workaround f <<
695 r3p*) erratum. A speculative memory <<
696 which starts prior to an ASID switch <<
697 can populate the micro-TLB with a st <<
698 the new ASID. This workaround places <<
699 switching code so that no page table <<
700 <<
701 config ARM_ERRATA_754327 <<
702 bool "ARM errata: no automatic Store B <<
703 depends on CPU_V7 && SMP <<
704 help <<
705 This option enables the workaround f <<
706 r2p0) erratum. The Store Buffer does <<
707 mechanism and therefore a livelock m <<
708 continuously polls a memory location <<
709 This workaround defines cpu_relax() <<
710 written polling loops from denying v <<
711 <<
712 config ARM_ERRATA_364296 <<
713 bool "ARM errata: Possible cache data <<
714 depends on CPU_V6 <<
715 help <<
716 This options enables the workaround <<
717 r0p2 erratum (possible cache data co <<
718 hit-under-miss enabled). It sets the <<
719 the auxiliary control register and t <<
720 register, thus disabling hit-under-m <<
721 processor into full low interrupt la <<
722 is not affected. <<
723 <<
724 config ARM_ERRATA_764369 <<
725 bool "ARM errata: Data cache line main <<
726 depends on CPU_V7 && SMP <<
727 help <<
728 This option enables the workaround f <<
729 affecting Cortex-A9 MPCore with two <<
730 current revisions). Under certain ti <<
731 cache line maintenance operation by <<
732 Shareable memory region may fail to <<
733 Point of Coherency or to the Point o <<
734 system. This workaround adds a DSB i <<
735 relevant cache maintenance functions <<
736 in the diagnostic control register o <<
737 <<
738 config ARM_ERRATA_764319 <<
739 bool "ARM errata: Read to DBGPRSR and <<
740 depends on CPU_V7 <<
741 help <<
742 This option enables the workaround f <<
743 CP14 read accesses to the DBGPRSR an <<
744 unexpected Undefined Instruction exc <<
745 external pin is set to 0, even when <<
746 from a privileged mode. This work ar <<
747 way the kernel does not stop executi <<
748 <<
749 config ARM_ERRATA_775420 <<
750 bool "ARM errata: A data cache maintena <<
751 depends on CPU_V7 <<
752 help <<
753 This option enables the workaround fo <<
754 r2p6,r2p8,r2p10,r3p0) erratum. In cas <<
755 operation aborts with MMU exception, <<
756 to deadlock. This workaround puts DSB <<
757 an abort may occur on cache maintenan <<
758 <<
759 config ARM_ERRATA_798181 <<
760 bool "ARM errata: TLBI/DSB failure on <<
761 depends on CPU_V7 && SMP <<
762 help <<
763 On Cortex-A15 (r0p0..r3p2) the TLBI* <<
764 adequately shooting down all use of <<
765 option enables the Linux kernel work <<
766 which sends an IPI to the CPUs that <<
767 as the one being invalidated. <<
768 <<
769 config ARM_ERRATA_773022 <<
770 bool "ARM errata: incorrect instructio <<
771 depends on CPU_V7 <<
772 help <<
773 This option enables the workaround f <<
774 (up to r0p4) erratum. In certain rar <<
775 loop buffer may deliver incorrect in <<
776 workaround disables the loop buffer <<
777 <<
778 config ARM_ERRATA_818325_852422 <<
779 bool "ARM errata: A12: some seqs of op <<
780 depends on CPU_V7 <<
781 help <<
782 This option enables the workaround f <<
783 - Cortex-A12 818325: Execution of an <<
784 instruction might deadlock. Fixed <<
785 - Cortex-A12 852422: Execution of a <<
786 lead to either a data corruption o <<
787 any Cortex-A12 cores yet. <<
788 This workaround for all both errata <<
789 Feature Register. This bit disables <<
790 sequence of 2 instructions that use <<
791 <<
792 config ARM_ERRATA_821420 <<
793 bool "ARM errata: A12: sequence of VMO <<
794 depends on CPU_V7 <<
795 help <<
796 This option enables the workaround f <<
797 (all revs) erratum. In very rare tim <<
798 of VMOV to Core registers instructio <<
799 one is in the shadow of a branch or <<
800 deadlock when the VMOV instructions <<
801 <<
802 config ARM_ERRATA_825619 <<
803 bool "ARM errata: A12: DMB NSHST/ISHST <<
804 depends on CPU_V7 <<
805 help <<
806 This option enables the workaround f <<
807 (all revs) erratum. Within rare timi <<
808 DMB NSHST or DMB ISHST instruction f <<
809 and Device/Strongly-Ordered loads an <<
810 <<
811 config ARM_ERRATA_857271 <<
812 bool "ARM errata: A12: CPU might deadl <<
813 depends on CPU_V7 <<
814 help <<
815 This option enables the workaround f <<
816 (all revs) erratum. Under very rare <<
817 hang. The workaround is expected to <<
818 <<
819 config ARM_ERRATA_852421 <<
820 bool "ARM errata: A17: DMB ST might fa <<
821 depends on CPU_V7 <<
822 help <<
823 This option enables the workaround f <<
824 (r1p0, r1p1, r1p2) erratum. Under ve <<
825 execution of a DMB ST instruction mi <<
826 stores from GroupA and stores from G <<
827 <<
828 config ARM_ERRATA_852423 <<
829 bool "ARM errata: A17: some seqs of op <<
830 depends on CPU_V7 <<
831 help <<
832 This option enables the workaround f <<
833 - Cortex-A17 852423: Execution of a <<
834 lead to either a data corruption o <<
835 any Cortex-A17 cores yet. <<
836 This is identical to Cortex-A12 erra <<
837 config option from the A12 erratum d <<
838 for and handled. <<
839 <<
840 config ARM_ERRATA_857272 <<
841 bool "ARM errata: A17: CPU might deadl <<
842 depends on CPU_V7 <<
843 help <<
844 This option enables the workaround f <<
845 This erratum is not known to be fixe <<
846 This is identical to Cortex-A12 erra <<
847 config option from the A12 erratum d <<
848 for and handled. <<
849 <<
850 endmenu <<
851 <<
852 source "arch/arm/common/Kconfig" <<
853 <<
854 menu "Bus support" <<
855 <<
856 config ISA <<
857 bool 145 bool
858 help !! 146 default y if SPARC32
859 Find out whether you have ISA slots <<
860 name of a bus system, i.e. the way t <<
861 inside your box. Other bus systems <<
862 (MCA) or VESA. ISA is an older syst <<
863 newer boards don't support it. If y <<
864 147
865 # Select ISA DMA interface !! 148 config GENERIC_ISA_DMA
866 config ISA_DMA_API <<
867 bool 149 bool
>> 150 default y if SPARC32
868 151
869 config ARM_ERRATA_814220 !! 152 config PGTABLE_LEVELS
870 bool "ARM errata: Cache maintenance by !! 153 default 4 if 64BIT
871 depends on CPU_V7 !! 154 default 3
872 help <<
873 The v7 ARM states that all cache and <<
874 operations that do not specify an ad <<
875 each other, in program order. <<
876 However, because of this erratum, an <<
877 operation can overtake an L1 set/way <<
878 This ERRATA only affected the Cortex <<
879 r0p4, r0p5. <<
880 <<
881 endmenu <<
882 <<
883 menu "Kernel Features" <<
884 155
885 config HAVE_SMP !! 156 config ARCH_SUPPORTS_UPROBES
886 bool !! 157 def_bool y if SPARC64
887 help <<
888 This option should be selected by ma <<
889 capable CPU. <<
890 158
891 The only effect of this option is to !! 159 menu "Processor type and features"
892 options available to the user for co <<
893 160
894 config SMP 161 config SMP
895 bool "Symmetric Multi-Processing" !! 162 bool "Symmetric multi-processing support"
896 depends on CPU_V6K || CPU_V7 <<
897 depends on HAVE_SMP <<
898 depends on MMU || ARM_MPU <<
899 select IRQ_WORK <<
900 help 163 help
901 This enables support for systems wit 164 This enables support for systems with more than one CPU. If you have
902 a system with only one CPU, say N. I 165 a system with only one CPU, say N. If you have a system with more
903 than one CPU, say Y. 166 than one CPU, say Y.
904 167
905 If you say N here, the kernel will r 168 If you say N here, the kernel will run on uni- and multiprocessor
906 machines, but will use only one CPU 169 machines, but will use only one CPU of a multiprocessor machine. If
907 you say Y here, the kernel will run 170 you say Y here, the kernel will run on many, but not all,
908 uniprocessor machines. On a uniproce 171 uniprocessor machines. On a uniprocessor machine, the kernel
909 will run faster if you say N here. 172 will run faster if you say N here.
910 173
911 See also <file:Documentation/arch/x8 !! 174 People using multiprocessor machines who say Y here should also say
912 <file:Documentation/admin-guide/lock !! 175 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
913 <http://tldp.org/HOWTO/SMP-HOWTO.htm !! 176 Management" code will be disabled if you say Y here.
914 <<
915 If you don't know what to do here, s <<
916 <<
917 config SMP_ON_UP <<
918 bool "Allow booting SMP kernel on unip <<
919 depends on SMP && MMU <<
920 default y <<
921 help <<
922 SMP kernels contain instructions whi <<
923 Enabling this option allows the kern <<
924 these instructions safe. Disabling <<
925 savings. <<
926 177
927 If you don't know what to do here, s !! 178 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 179 available at <http://www.tldp.org/docs.html#howto>.
928 180
>> 181 If you don't know what to do here, say N.
929 182
930 config CURRENT_POINTER_IN_TPIDRURO !! 183 config NR_CPUS
931 def_bool y !! 184 int "Maximum number of CPUs"
932 depends on CPU_32v6K && !CPU_V6 !! 185 depends on SMP
>> 186 range 2 32 if SPARC32
>> 187 range 2 4096 if SPARC64
>> 188 default 32 if SPARC32
>> 189 default 4096 if SPARC64
933 190
934 config IRQSTACKS !! 191 source "kernel/Kconfig.hz"
935 def_bool y <<
936 select HAVE_IRQ_EXIT_ON_IRQ_STACK <<
937 select HAVE_SOFTIRQ_ON_OWN_STACK <<
938 192
939 config ARM_CPU_TOPOLOGY !! 193 config GENERIC_HWEIGHT
940 bool "Support cpu topology definition" !! 194 bool
941 depends on SMP && CPU_V7 <<
942 default y 195 default y
943 help <<
944 Support ARM cpu topology definition. <<
945 affinity between processors which is <<
946 topology of an ARM System. <<
947 <<
948 config SCHED_MC <<
949 bool "Multi-core scheduler support" <<
950 depends on ARM_CPU_TOPOLOGY <<
951 help <<
952 Multi-core scheduler support improve <<
953 making when dealing with multi-core <<
954 increased overhead in some places. I <<
955 <<
956 config SCHED_SMT <<
957 bool "SMT scheduler support" <<
958 depends on ARM_CPU_TOPOLOGY <<
959 help <<
960 Improves the CPU scheduler's decisio <<
961 MultiThreading at a cost of slightly <<
962 places. If unsure say N here. <<
963 196
964 config HAVE_ARM_SCU !! 197 config GENERIC_CALIBRATE_DELAY
965 bool 198 bool
966 help !! 199 default y
967 This option enables support for the <<
968 <<
969 config HAVE_ARM_ARCH_TIMER <<
970 bool "Architected timer support" <<
971 depends on CPU_V7 <<
972 select ARM_ARCH_TIMER <<
973 help <<
974 This option enables support for the <<
975 200
976 config HAVE_ARM_TWD !! 201 config ARCH_MAY_HAVE_PC_FDC
977 bool 202 bool
978 help !! 203 default y
979 This options enables support for the <<
980 <<
981 config MCPM <<
982 bool "Multi-Cluster Power Management" <<
983 depends on CPU_V7 && SMP <<
984 help <<
985 This option provides the common powe <<
986 for (multi-)cluster based systems, s <<
987 systems. <<
988 204
989 config MCPM_QUAD_CLUSTER !! 205 config EMULATED_CMPXCHG
990 bool 206 bool
991 depends on MCPM !! 207 default y if SPARC32
992 help 208 help
993 To avoid wasting resources unnecessa !! 209 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
994 to 2 clusters by default. !! 210 is emulated, and therefore it is not completely atomic.
995 Platforms with 3 or 4 clusters that <<
996 option to allow the additional clust <<
997 211
998 config BIG_LITTLE !! 212 # Makefile helpers
999 bool "big.LITTLE support (Experimental !! 213 config SPARC32_SMP
1000 depends on CPU_V7 && SMP !! 214 bool
1001 select MCPM !! 215 default y
1002 help !! 216 depends on SPARC32 && SMP
1003 This option enables support selecti <<
1004 system architecture. <<
1005 <<
1006 config BL_SWITCHER <<
1007 bool "big.LITTLE switcher support" <<
1008 depends on BIG_LITTLE && MCPM && HOTP <<
1009 select CPU_PM <<
1010 help <<
1011 The big.LITTLE "switcher" provides <<
1012 transparently handle transition bet <<
1013 and a cluster of A7's in a big.LITT <<
1014 <<
1015 config BL_SWITCHER_DUMMY_IF <<
1016 tristate "Simple big.LITTLE switcher <<
1017 depends on BL_SWITCHER && DEBUG_KERNE <<
1018 help <<
1019 This is a simple and dummy char dev <<
1020 the big.LITTLE switcher core code. <<
1021 debugging purposes only. <<
1022 <<
1023 choice <<
1024 prompt "Memory split" <<
1025 depends on MMU <<
1026 default VMSPLIT_3G <<
1027 help <<
1028 Select the desired split between ke <<
1029 <<
1030 If you are not absolutely sure what <<
1031 option alone! <<
1032 <<
1033 config VMSPLIT_3G <<
1034 bool "3G/1G user/kernel split <<
1035 config VMSPLIT_3G_OPT <<
1036 depends on !ARM_LPAE <<
1037 bool "3G/1G user/kernel split <<
1038 config VMSPLIT_2G <<
1039 bool "2G/2G user/kernel split <<
1040 config VMSPLIT_1G <<
1041 bool "1G/3G user/kernel split <<
1042 endchoice <<
1043 <<
1044 config PAGE_OFFSET <<
1045 hex <<
1046 default PHYS_OFFSET if !MMU <<
1047 default 0x40000000 if VMSPLIT_1G <<
1048 default 0x80000000 if VMSPLIT_2G <<
1049 default 0xB0000000 if VMSPLIT_3G_OPT <<
1050 default 0xC0000000 <<
1051 217
1052 config KASAN_SHADOW_OFFSET !! 218 config SPARC64_SMP
1053 hex !! 219 bool
1054 depends on KASAN !! 220 default y
1055 default 0x1f000000 if PAGE_OFFSET=0x4 !! 221 depends on SPARC64 && SMP
1056 default 0x5f000000 if PAGE_OFFSET=0x8 <<
1057 default 0x9f000000 if PAGE_OFFSET=0xC <<
1058 default 0x8f000000 if PAGE_OFFSET=0xB <<
1059 default 0xffffffff <<
1060 222
1061 config NR_CPUS !! 223 config EARLYFB
1062 int "Maximum number of CPUs (2-32)" !! 224 bool "Support for early boot text console"
1063 range 2 16 if DEBUG_KMAP_LOCAL !! 225 default y
1064 range 2 32 if !DEBUG_KMAP_LOCAL !! 226 depends on SPARC64
1065 depends on SMP <<
1066 default "4" <<
1067 help 227 help
1068 The maximum number of CPUs that the !! 228 Say Y here to enable a faster early framebuffer boot console.
1069 Up to 32 CPUs can be supported, or <<
1070 debugging is enabled, which uses ha <<
1071 slots as guard regions. <<
1072 229
1073 config HOTPLUG_CPU 230 config HOTPLUG_CPU
1074 bool "Support for hot-pluggable CPUs" 231 bool "Support for hot-pluggable CPUs"
1075 depends on SMP !! 232 depends on SPARC64 && SMP
1076 select GENERIC_IRQ_MIGRATION <<
1077 help 233 help
1078 Say Y here to experiment with turni 234 Say Y here to experiment with turning CPUs off and on. CPUs
1079 can be controlled through /sys/devi !! 235 can be controlled through /sys/devices/system/cpu/cpu#.
>> 236 Say N if you want to disable CPU hotplug.
>> 237
>> 238 if SPARC64
>> 239 source "drivers/cpufreq/Kconfig"
>> 240 endif
1080 241
1081 config ARM_PSCI !! 242 config US3_MC
1082 bool "Support for the ARM Power State !! 243 tristate "UltraSPARC-III Memory Controller driver"
1083 depends on HAVE_ARM_SMCCC !! 244 depends on SPARC64
1084 select ARM_PSCI_FW !! 245 default y
1085 help <<
1086 Say Y here if you want Linux to com <<
1087 implementing the PSCI specification <<
1088 management operations described in <<
1089 0022A ("Power State Coordination In <<
1090 ARM processors"). <<
1091 <<
1092 config HZ_FIXED <<
1093 int <<
1094 default 128 if SOC_AT91RM9200 <<
1095 default 0 <<
1096 <<
1097 choice <<
1098 depends on HZ_FIXED = 0 <<
1099 prompt "Timer frequency" <<
1100 <<
1101 config HZ_100 <<
1102 bool "100 Hz" <<
1103 <<
1104 config HZ_200 <<
1105 bool "200 Hz" <<
1106 <<
1107 config HZ_250 <<
1108 bool "250 Hz" <<
1109 <<
1110 config HZ_300 <<
1111 bool "300 Hz" <<
1112 <<
1113 config HZ_500 <<
1114 bool "500 Hz" <<
1115 <<
1116 config HZ_1000 <<
1117 bool "1000 Hz" <<
1118 <<
1119 endchoice <<
1120 <<
1121 config HZ <<
1122 int <<
1123 default HZ_FIXED if HZ_FIXED != 0 <<
1124 default 100 if HZ_100 <<
1125 default 200 if HZ_200 <<
1126 default 250 if HZ_250 <<
1127 default 300 if HZ_300 <<
1128 default 500 if HZ_500 <<
1129 default 1000 <<
1130 <<
1131 config SCHED_HRTICK <<
1132 def_bool HIGH_RES_TIMERS <<
1133 <<
1134 config THUMB2_KERNEL <<
1135 bool "Compile the kernel in Thumb-2 m <<
1136 depends on (CPU_V7 || CPU_V7M) && !CP <<
1137 default y if CPU_THUMBONLY <<
1138 select ARM_UNWIND <<
1139 help 246 help
1140 By enabling this option, the kernel !! 247 This adds a driver for the UltraSPARC-III memory controller.
1141 Thumb-2 mode. !! 248 Loading this driver allows exact mnemonic strings to be
>> 249 printed in the event of a memory error, so that the faulty DIMM
>> 250 on the motherboard can be matched to the error.
1142 251
1143 If unsure, say N. !! 252 If in doubt, say Y, as this information can be very useful.
1144 253
1145 config ARM_PATCH_IDIV !! 254 # Global things across all Sun machines.
1146 bool "Runtime patch udiv/sdiv instruc !! 255 config GENERIC_LOCKBREAK
1147 depends on CPU_32v7 !! 256 bool
1148 default y !! 257 default y
1149 help !! 258 depends on SPARC64 && SMP && PREEMPTION
1150 The ARM compiler inserts calls to _ <<
1151 __aeabi_uidiv() when it needs to pe <<
1152 and unsigned integers. Some v7 CPUs <<
1153 and udiv instructions that can be u <<
1154 functions. <<
1155 <<
1156 Enabling this option allows the ker <<
1157 replace the first two instructions <<
1158 with the sdiv or udiv plus "bx lr" <<
1159 it is running on supports them. Typ <<
1160 and less power intensive than runni <<
1161 code to do integer division. <<
1162 <<
1163 config AEABI <<
1164 bool "Use the ARM EABI to compile the <<
1165 !CPU_V7M && !CPU_V6 && !CPU_V <<
1166 default CPU_V7 || CPU_V7M || CPU_V6 | <<
1167 help <<
1168 This option allows for the kernel t <<
1169 ARM ABI (aka EABI). This is only u <<
1170 space environment that is also comp <<
1171 <<
1172 Since there are major incompatibili <<
1173 EABI, especially with regard to str <<
1174 option also changes the kernel sysc <<
1175 disambiguate both ABIs and allow fo <<
1176 (selected with CONFIG_OABI_COMPAT). <<
1177 <<
1178 To use this you need GCC version 4. <<
1179 <<
1180 config OABI_COMPAT <<
1181 bool "Allow old ABI binaries to run w <<
1182 depends on AEABI && !THUMB2_KERNEL <<
1183 help <<
1184 This option preserves the old sysca <<
1185 new (ARM EABI) one. It also provide <<
1186 intercept syscalls that have struct <<
1187 in memory differs between the legac <<
1188 (only for non "thumb" binaries). Th <<
1189 overhead to all syscalls and produc <<
1190 <<
1191 The seccomp filter system will not <<
1192 selected, since there is no way yet <<
1193 between calling conventions during <<
1194 <<
1195 If you know you'll be using only pu <<
1196 can say N here. If this option is n <<
1197 to execute a legacy ABI binary then <<
1198 UNPREDICTABLE (in fact it can be pr <<
1199 at all). If in doubt say N. <<
1200 259
1201 config ARCH_SELECT_MEMORY_MODEL !! 260 config NUMA
1202 def_bool y !! 261 bool "NUMA support"
>> 262 depends on SPARC64 && SMP
1203 263
1204 config ARCH_FLATMEM_ENABLE !! 264 config NODES_SHIFT
1205 def_bool !(ARCH_RPC || ARCH_SA1100) !! 265 int "Maximum NUMA Nodes (as a power of 2)"
>> 266 range 4 5 if SPARC64
>> 267 default "5"
>> 268 depends on NEED_MULTIPLE_NODES
>> 269 help
>> 270 Specify the maximum number of NUMA Nodes available on the target
>> 271 system. Increases memory reserved to accommodate various tables.
1206 272
1207 config ARCH_SPARSEMEM_ENABLE 273 config ARCH_SPARSEMEM_ENABLE
1208 def_bool !ARCH_FOOTBRIDGE !! 274 def_bool y if SPARC64
1209 select SPARSEMEM_STATIC if SPARSEMEM !! 275 select SPARSEMEM_VMEMMAP_ENABLE
1210 276
1211 config HIGHMEM !! 277 config ARCH_SPARSEMEM_DEFAULT
1212 bool "High Memory Support" !! 278 def_bool y if SPARC64
1213 depends on MMU <<
1214 select KMAP_LOCAL <<
1215 select KMAP_LOCAL_NON_LINEAR_PTE_ARRA <<
1216 help <<
1217 The address space of ARM processors <<
1218 and it has to accommodate user addr <<
1219 space as well as some memory mapped <<
1220 have a large amount of physical mem <<
1221 memory can be "permanently mapped" <<
1222 memory that is not permanently mapp <<
1223 279
1224 Depending on the selected kernel/us !! 280 config FORCE_MAX_ZONEORDER
1225 vmalloc space and actual amount of !! 281 int "Maximum zone order"
1226 option which should result in a sli !! 282 default "13"
>> 283 help
>> 284 The kernel memory allocator divides physically contiguous memory
>> 285 blocks into "zones", where each zone is a power of two number of
>> 286 pages. This option selects the largest power of two that the kernel
>> 287 keeps in the memory allocator. If you need to allocate very large
>> 288 blocks of physically contiguous memory, then you may need to
>> 289 increase this value.
1227 290
1228 If unsure, say n. !! 291 This config option is actually maximum order plus one. For example,
>> 292 a value of 13 means that the largest free memory block is 2^12 pages.
1229 293
1230 config HIGHPTE !! 294 if SPARC64
1231 bool "Allocate 2nd-level pagetables f !! 295 source "kernel/power/Kconfig"
1232 depends on HIGHMEM !! 296 endif
>> 297
>> 298 config SCHED_SMT
>> 299 bool "SMT (Hyperthreading) scheduler support"
>> 300 depends on SPARC64 && SMP
1233 default y 301 default y
1234 help 302 help
1235 The VM uses one page of physical me !! 303 SMT scheduler support improves the CPU scheduler's decision making
1236 For systems with a lot of processes !! 304 when dealing with SPARC cpus at a cost of slightly increased overhead
1237 precious low memory, eventually lea !! 305 in some places. If unsure say N here.
1238 consumed by page tables. Setting t <<
1239 user-space 2nd level page tables to <<
1240 306
1241 config ARM_PAN !! 307 config SCHED_MC
1242 bool "Enable privileged no-access" !! 308 bool "Multi-core scheduler support"
1243 depends on MMU !! 309 depends on SPARC64 && SMP
1244 default y 310 default y
1245 help 311 help
1246 Increase kernel security by ensurin !! 312 Multi-core scheduler support improves the CPU scheduler's decision
1247 are unable to access userspace addr !! 313 making when dealing with multi-core CPU chips at a cost of slightly
1248 use-after-free bugs becoming an exp !! 314 increased overhead in some places. If unsure say N here.
1249 by ensuring that magic values (such <<
1250 fault when dereferenced. <<
1251 315
1252 The implementation uses CPU domains !! 316 config CMDLINE_BOOL
1253 disabling of TTBR0 page table walks !! 317 bool "Default bootloader kernel arguments"
>> 318 depends on SPARC64
1254 319
1255 config CPU_SW_DOMAIN_PAN !! 320 config CMDLINE
1256 def_bool y !! 321 string "Initial kernel command string"
1257 depends on ARM_PAN && !ARM_LPAE !! 322 depends on CMDLINE_BOOL
>> 323 default "console=ttyS0,9600 root=/dev/sda1"
1258 help 324 help
1259 Enable use of CPU domains to implem !! 325 Say Y here if you want to be able to pass default arguments to
>> 326 the kernel. This will be overridden by the bootloader, if you
>> 327 use one (such as SILO). This is most useful if you want to boot
>> 328 a kernel from TFTP, and want default options to be available
>> 329 with having them passed on the command line.
1260 330
1261 CPUs with low-vector mappings use a !! 331 NOTE: This option WILL override the PROM bootargs setting!
1262 Their lower 1MB needs to remain acc <<
1263 the remainder of userspace will bec <<
1264 332
1265 config CPU_TTBR0_PAN !! 333 config SUN_PM
1266 def_bool y !! 334 bool
1267 depends on ARM_PAN && ARM_LPAE !! 335 default y if SPARC32
1268 help 336 help
1269 Enable privileged no-access by disa !! 337 Enable power management and CPU standby features on supported
1270 running in kernel mode. !! 338 SPARC platforms.
1271 <<
1272 config HW_PERF_EVENTS <<
1273 def_bool y <<
1274 depends on ARM_PMU <<
1275 <<
1276 config ARM_MODULE_PLTS <<
1277 bool "Use PLTs to allow module memory <<
1278 depends on MODULES <<
1279 select KASAN_VMALLOC if KASAN <<
1280 default y <<
1281 help <<
1282 Allocate PLTs when loading modules <<
1283 targets are too far away for their <<
1284 in the instructions themselves can <<
1285 module's PLT. This allows modules t <<
1286 vmalloc area after the dedicated mo <<
1287 exhausted. The modules will use sli <<
1288 rounding up to page size, the actua <<
1289 the same. <<
1290 <<
1291 Disabling this is usually safe for <<
1292 configurations. If unsure, say y. <<
1293 <<
1294 config ARCH_FORCE_MAX_ORDER <<
1295 int "Order of maximal physically cont <<
1296 default "11" if SOC_AM33XX <<
1297 default "8" if SA1111 <<
1298 default "10" <<
1299 help <<
1300 The kernel page allocator limits th <<
1301 contiguous allocations. The limit i <<
1302 defines the maximal power of two of <<
1303 allocated as a single contiguous bl <<
1304 overriding the default setting when <<
1305 large blocks of physically contiguo <<
1306 <<
1307 Don't change if unsure. <<
1308 <<
1309 config ALIGNMENT_TRAP <<
1310 def_bool CPU_CP15_MMU <<
1311 select HAVE_PROC_CPU if PROC_FS <<
1312 help <<
1313 ARM processors cannot fetch/store i <<
1314 naturally aligned on the bus, i.e., <<
1315 address divisible by 4. On 32-bit A <<
1316 fetch/store instructions will be em <<
1317 here, which has a severe performanc <<
1318 correct operation of some network p <<
1319 configuration it is safe to say N, <<
1320 <<
1321 config UACCESS_WITH_MEMCPY <<
1322 bool "Use kernel mem{cpy,set}() for { <<
1323 depends on MMU <<
1324 default y if CPU_FEROCEON <<
1325 help <<
1326 Implement faster copy_to_user and c <<
1327 cores where a 8-word STM instructio <<
1328 memory write throughput than a sequ <<
1329 <<
1330 A possible side effect is a slight <<
1331 between threads sharing the same ad <<
1332 such copy operations with large buf <<
1333 <<
1334 However, if the CPU data cache is u <<
1335 this option is unlikely to provide <<
1336 <<
1337 config PARAVIRT <<
1338 bool "Enable paravirtualization code" <<
1339 help <<
1340 This changes the kernel so it can m <<
1341 under a hypervisor, potentially imp <<
1342 over full virtualization. <<
1343 <<
1344 config PARAVIRT_TIME_ACCOUNTING <<
1345 bool "Paravirtual steal time accounti <<
1346 select PARAVIRT <<
1347 help <<
1348 Select this option to enable fine g <<
1349 accounting. Time spent executing ot <<
1350 the current vCPU is discounted from <<
1351 that, there can be a small performa <<
1352 <<
1353 If in doubt, say N here. <<
1354 <<
1355 config XEN_DOM0 <<
1356 def_bool y <<
1357 depends on XEN <<
1358 <<
1359 config XEN <<
1360 bool "Xen guest support on ARM" <<
1361 depends on ARM && AEABI && OF <<
1362 depends on CPU_V7 && !CPU_V6 <<
1363 depends on !GENERIC_ATOMIC64 <<
1364 depends on MMU <<
1365 select ARCH_DMA_ADDR_T_64BIT <<
1366 select ARM_PSCI <<
1367 select SWIOTLB <<
1368 select SWIOTLB_XEN <<
1369 select PARAVIRT <<
1370 help <<
1371 Say Y if you want to run Linux in a <<
1372 <<
1373 config CC_HAVE_STACKPROTECTOR_TLS <<
1374 def_bool $(cc-option,-mtp=cp15 -mstac <<
1375 <<
1376 config STACKPROTECTOR_PER_TASK <<
1377 bool "Use a unique stack canary value <<
1378 depends on STACKPROTECTOR && CURRENT_ <<
1379 depends on GCC_PLUGINS || CC_HAVE_STA <<
1380 select GCC_PLUGIN_ARM_SSP_PER_TASK if <<
1381 default y <<
1382 help <<
1383 Due to the fact that GCC uses an or <<
1384 which to load the value of the stac <<
1385 change at reboot time on SMP system <<
1386 kernel's address space are forced t <<
1387 the entire duration that the system <<
1388 <<
1389 Enable this option to switch to a d <<
1390 different canary value for each tas <<
1391 339
1392 endmenu !! 340 config SPARC_LED
1393 !! 341 tristate "Sun4m LED driver"
1394 menu "Boot options" !! 342 depends on SPARC32
1395 <<
1396 config USE_OF <<
1397 bool "Flattened Device Tree support" <<
1398 select IRQ_DOMAIN <<
1399 select OF <<
1400 help 343 help
1401 Include support for flattened devic !! 344 This driver toggles the front-panel LED on sun4m systems
1402 !! 345 in a user-specifiable manner. Its state can be probed
1403 config ARCH_WANT_FLAT_DTB_INSTALL !! 346 by reading /proc/led and its blinking mode can be changed
1404 def_bool y !! 347 via writes to /proc/led
1405 348
1406 config ATAGS !! 349 config SERIAL_CONSOLE
1407 bool "Support for the traditional ATA !! 350 bool
>> 351 depends on SPARC32
1408 default y 352 default y
1409 help 353 help
1410 This is the traditional way of pass !! 354 If you say Y here, it will be possible to use a serial port as the
1411 time. If you are solely relying on !! 355 system console (the system console is the device which receives all
1412 the ARM_ATAG_DTB_COMPAT option) the !! 356 kernel messages and warnings and which allows logins in single user
1413 to remove ATAGS support from your k !! 357 mode). This could be useful if some terminal or printer is connected
1414 !! 358 to that serial port.
1415 config DEPRECATED_PARAM_STRUCT <<
1416 bool "Provide old way to pass kernel <<
1417 depends on ATAGS <<
1418 help <<
1419 This was deprecated in 2001 and ann <<
1420 Some old boot loaders still use thi <<
1421 <<
1422 # Compressed boot loader in ROM. Yes, we rea <<
1423 # TEXT and BSS so we preserve their values in <<
1424 config ZBOOT_ROM_TEXT <<
1425 hex "Compressed ROM boot loader base <<
1426 default 0x0 <<
1427 help <<
1428 The physical address at which the R <<
1429 placed in the target. Platforms wh <<
1430 ROM-able zImage formats normally se <<
1431 value in their defconfig file. <<
1432 <<
1433 If ZBOOT_ROM is not enabled, this h <<
1434 <<
1435 config ZBOOT_ROM_BSS <<
1436 hex "Compressed ROM boot loader BSS a <<
1437 default 0x0 <<
1438 help <<
1439 The base address of an area of read <<
1440 for the ROM-able zImage which must <<
1441 decompressor is running. It must be <<
1442 entire decompressed kernel plus an <<
1443 Platforms which normally make use o <<
1444 normally set this to a suitable val <<
1445 <<
1446 If ZBOOT_ROM is not enabled, this h <<
1447 <<
1448 config ZBOOT_ROM <<
1449 bool "Compressed boot loader in ROM/f <<
1450 depends on ZBOOT_ROM_TEXT != ZBOOT_RO <<
1451 depends on !ARM_APPENDED_DTB && !XIP_ <<
1452 help <<
1453 Say Y here if you intend to execute <<
1454 (zImage) directly from ROM or flash <<
1455 <<
1456 config ARM_APPENDED_DTB <<
1457 bool "Use appended device tree blob t <<
1458 depends on OF <<
1459 help <<
1460 With this option, the boot code wil <<
1461 (DTB) appended to zImage <<
1462 (e.g. cat zImage <filename>.dtb > z <<
1463 <<
1464 This is meant as a backward compati <<
1465 systems with a bootloader that can' <<
1466 the documented boot protocol using <<
1467 <<
1468 Beware that there is very little in <<
1469 this option being confused by lefto <<
1470 look like a DTB header after a rebo <<
1471 to zImage. Do not leave this optio <<
1472 if you don't intend to always appen <<
1473 location into r2 of a bootloader pr <<
1474 to this option. <<
1475 <<
1476 config ARM_ATAG_DTB_COMPAT <<
1477 bool "Supplement the appended DTB wit <<
1478 depends on ARM_APPENDED_DTB <<
1479 help <<
1480 Some old bootloaders can't be updat <<
1481 they provide ATAGs with memory conf <<
1482 the kernel cmdline string, etc. Su <<
1483 provided by the bootloader and can' <<
1484 DTB. To allow a device tree enable <<
1485 bootloaders, this option allows zIm <<
1486 from the ATAG list and store it at <<
1487 <<
1488 choice <<
1489 prompt "Kernel command line type" <<
1490 depends on ARM_ATAG_DTB_COMPAT <<
1491 default ARM_ATAG_DTB_COMPAT_CMDLINE_F <<
1492 <<
1493 config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTL <<
1494 bool "Use bootloader kernel arguments <<
1495 help <<
1496 Uses the command-line options passe <<
1497 the device tree bootargs property. <<
1498 any, the device tree bootargs prope <<
1499 359
1500 config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND !! 360 Even if you say Y here, the currently visible virtual console
1501 bool "Extend with bootloader kernel a !! 361 (/dev/tty0) will still be used as the system console by default, but
1502 help !! 362 you can alter that using a kernel command line option such as
1503 The command-line arguments provided !! 363 "console=ttyS1". (Try "man bootparam" or see the documentation of
1504 appended to the the device tree boo !! 364 your boot loader (silo) about how to pass options to the kernel at
>> 365 boot time.)
1505 366
1506 endchoice !! 367 If you don't have a graphics card installed and you say Y here, the
1507 !! 368 kernel will automatically use the first serial line, /dev/ttyS0, as
1508 config CMDLINE !! 369 system console.
1509 string "Default kernel command string <<
1510 default "" <<
1511 help <<
1512 On some architectures (e.g. CATS), <<
1513 for the boot loader to pass argumen <<
1514 architectures, you should supply so <<
1515 time by entering them here. As a mi <<
1516 memory size and the root device (e. <<
1517 <<
1518 choice <<
1519 prompt "Kernel command line type" <<
1520 depends on CMDLINE != "" <<
1521 default CMDLINE_FROM_BOOTLOADER <<
1522 <<
1523 config CMDLINE_FROM_BOOTLOADER <<
1524 bool "Use bootloader kernel arguments <<
1525 help <<
1526 Uses the command-line options passe <<
1527 the boot loader doesn't provide any <<
1528 string provided in CMDLINE will be <<
1529 <<
1530 config CMDLINE_EXTEND <<
1531 bool "Extend bootloader kernel argume <<
1532 help <<
1533 The command-line arguments provided <<
1534 appended to the default kernel comm <<
1535 <<
1536 config CMDLINE_FORCE <<
1537 bool "Always use the default kernel c <<
1538 help <<
1539 Always use the default kernel comma <<
1540 loader passes other arguments to th <<
1541 This is useful if you cannot or don <<
1542 command-line options your boot load <<
1543 endchoice <<
1544 <<
1545 config XIP_KERNEL <<
1546 bool "Kernel Execute-In-Place from RO <<
1547 depends on !ARM_LPAE && !ARCH_MULTIPL <<
1548 depends on !ARM_PATCH_IDIV && !ARM_PA <<
1549 help <<
1550 Execute-In-Place allows the kernel <<
1551 directly addressable by the CPU, su <<
1552 space since the text section of the <<
1553 to RAM. Read-write sections, such <<
1554 are still copied to RAM. The XIP k <<
1555 it has to run directly from flash, <<
1556 store it. The flash address used t <<
1557 and for storing it, is configuratio <<
1558 say Y here, you must know the prope <<
1559 store the kernel image depending on <<
1560 <<
1561 Also note that the make target beco <<
1562 "make zImage" or "make Image". The <<
1563 ROM memory will be arch/arm/boot/xi <<
1564 370
1565 If unsure, say N. 371 If unsure, say N.
1566 372
1567 config XIP_PHYS_ADDR !! 373 config SPARC_LEON
1568 hex "XIP Kernel Physical Location" !! 374 bool "Sparc Leon processor family"
1569 depends on XIP_KERNEL !! 375 depends on SPARC32
1570 default "0x00080000" !! 376 select USB_EHCI_BIG_ENDIAN_MMIO
1571 help !! 377 select USB_EHCI_BIG_ENDIAN_DESC
1572 This is the physical address in you !! 378 select USB_UHCI_BIG_ENDIAN_MMIO
1573 be linked for and stored to. This !! 379 select USB_UHCI_BIG_ENDIAN_DESC
1574 own flash usage. !! 380 help
1575 !! 381 If you say Y here if you are running on a SPARC-LEON processor.
1576 config XIP_DEFLATED_DATA !! 382 The LEON processor is a synthesizable VHDL model of the
1577 bool "Store kernel .data section comp !! 383 SPARC-v8 standard. LEON is part of the GRLIB collection of
1578 depends on XIP_KERNEL !! 384 IP cores that are distributed under GPL. GRLIB can be downloaded
1579 select ZLIB_INFLATE !! 385 from www.gaisler.com. You can download a sparc-linux cross-compilation
1580 help !! 386 toolchain at www.gaisler.com.
1581 Before the kernel is actually execu !! 387
1582 copied to RAM from ROM. This option !! 388 if SPARC_LEON
1583 in compressed form and decompressed !! 389 menu "U-Boot options"
1584 copied, saving some precious ROM sp !! 390
1585 slightly longer boot delay. !! 391 config UBOOT_LOAD_ADDR
1586 !! 392 hex "uImage Load Address"
1587 config ARCH_SUPPORTS_KEXEC !! 393 default 0x40004000
1588 def_bool (!SMP || PM_SLEEP_SMP) && MM !! 394 help
1589 !! 395 U-Boot kernel load address, the address in physical address space
1590 config ATAGS_PROC !! 396 where u-boot will place the Linux kernel before booting it.
1591 bool "Export atags in procfs" !! 397 This address is normally the base address of main memory + 0x4000.
1592 depends on ATAGS && KEXEC !! 398
1593 default y !! 399 config UBOOT_FLASH_ADDR
>> 400 hex "uImage.o Load Address"
>> 401 default 0x00080000
>> 402 help
>> 403 Optional setting only affecting the uImage.o ELF-image used to
>> 404 download the uImage file to the target using a ELF-loader other than
>> 405 U-Boot. It may for example be used to download an uImage to FLASH with
>> 406 the GRMON utility before even starting u-boot.
>> 407
>> 408 config UBOOT_ENTRY_ADDR
>> 409 hex "uImage Entry Address"
>> 410 default 0xf0004000
1594 help 411 help
1595 Should the atags used to boot the k !! 412 Do not change this unless you know what you're doing. This is
1596 file in procfs. Useful with kexec. !! 413 hardcoded by the SPARC32 and LEON port.
1597 <<
1598 config ARCH_SUPPORTS_CRASH_DUMP <<
1599 def_bool y <<
1600 414
1601 config AUTO_ZRELADDR !! 415 This is the virtual address u-boot jumps to when booting the Linux
1602 bool "Auto calculation of the decompr !! 416 Kernel.
1603 default !(ARCH_FOOTBRIDGE || ARCH_RPC <<
1604 help <<
1605 ZRELADDR is the physical address wh <<
1606 image will be placed. If AUTO_ZRELA <<
1607 will be determined at run-time, eit <<
1608 with 0xf8000000, or, if invalid, fr <<
1609 This assumes the zImage being place <<
1610 start of memory. <<
1611 <<
1612 config EFI_STUB <<
1613 bool <<
1614 <<
1615 config EFI <<
1616 bool "UEFI runtime support" <<
1617 depends on OF && !CPU_BIG_ENDIAN && M <<
1618 select UCS2_STRING <<
1619 select EFI_PARAMS_FROM_FDT <<
1620 select EFI_STUB <<
1621 select EFI_GENERIC_STUB <<
1622 select EFI_RUNTIME_WRAPPERS <<
1623 help <<
1624 This option provides support for ru <<
1625 by UEFI firmware (such as non-volat <<
1626 clock, and platform reset). A UEFI <<
1627 allow the kernel to be booted as an <<
1628 is only useful for kernels that may <<
1629 UEFI firmware. <<
1630 <<
1631 config DMI <<
1632 bool "Enable support for SMBIOS (DMI) <<
1633 depends on EFI <<
1634 default y <<
1635 help <<
1636 This enables SMBIOS/DMI feature for <<
1637 <<
1638 This option is only useful on syste <<
1639 However, even with this option, the <<
1640 continue to boot on existing non-UE <<
1641 <<
1642 NOTE: This does *NOT* enable or enc <<
1643 i.e., the the practice of identifyi <<
1644 decide whether certain workarounds <<
1645 firmware need to be enabled. This w <<
1646 to be enabled much earlier than we <<
1647 417
1648 endmenu 418 endmenu
1649 !! 419 endif
1650 menu "CPU Power Management" <<
1651 <<
1652 source "drivers/cpufreq/Kconfig" <<
1653 <<
1654 source "drivers/cpuidle/Kconfig" <<
1655 420
1656 endmenu 421 endmenu
1657 422
1658 menu "Floating point emulation" !! 423 menu "Bus options (PCI etc.)"
>> 424 config SBUS
>> 425 bool
>> 426 default y
1659 427
1660 comment "At least one emulation must be selec !! 428 config SBUSCHAR
>> 429 bool
>> 430 default y
1661 431
1662 config FPE_NWFPE !! 432 config SUN_LDOMS
1663 bool "NWFPE math emulation" !! 433 bool "Sun Logical Domains support"
1664 depends on (!AEABI || OABI_COMPAT) && !! 434 depends on SPARC64
1665 help 435 help
1666 Say Y to include the NWFPE floating !! 436 Say Y here is you want to support virtual devices via
1667 This is necessary to run most binar !! 437 Logical Domains.
1668 support floating point hardware so <<
1669 your machine has an FPA or floating <<
1670 438
1671 You may say N here if you are going !! 439 config PCIC_PCI
1672 early in the bootup. !! 440 bool
1673 !! 441 depends on PCI && SPARC32 && !SPARC_LEON
1674 config FPE_NWFPE_XP !! 442 default y
1675 bool "Support extended precision" <<
1676 depends on FPE_NWFPE <<
1677 help <<
1678 Say Y to include 80-bit support in <<
1679 emulator. Otherwise, only 32 and 6 <<
1680 Note that gcc does not generate 80- <<
1681 so in most cases this option only e <<
1682 floating point emulator without any <<
1683 443
1684 You almost surely want to say N her !! 444 config LEON_PCI
>> 445 bool
>> 446 depends on PCI && SPARC_LEON
>> 447 default y
1685 448
1686 config FPE_FASTFPE !! 449 config SPARC_GRPCI1
1687 bool "FastFPE math emulation (EXPERIM !! 450 bool "GRPCI Host Bridge Support"
1688 depends on (!AEABI || OABI_COMPAT) && !! 451 depends on LEON_PCI
>> 452 default y
1689 help 453 help
1690 Say Y here to include the FAST floa !! 454 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
1691 This is an experimental much faster !! 455 PCI host controller is typically found in GRLIB SPARC32/LEON
1692 precision for the mantissa. It doe !! 456 systems. The driver has one property (all_pci_errors) controlled
1693 It is very simple, and approximatel !! 457 from the bootloader that makes the GRPCI to generate interrupts
>> 458 on detected PCI Parity and System errors.
1694 459
1695 It should be sufficient for most pr !! 460 config SPARC_GRPCI2
1696 for scientific calculations, but yo !! 461 bool "GRPCI2 Host Bridge Support"
1697 If you do not feel you need a faste !! 462 depends on LEON_PCI
1698 choose NWFPE. !! 463 default y
>> 464 help
>> 465 Say Y here to include the GRPCI2 Host Bridge Driver.
1699 466
1700 config VFP !! 467 config SUN_OPENPROMFS
1701 bool "VFP-format floating point maths !! 468 tristate "Openprom tree appears in /proc/openprom"
1702 depends on CPU_V6 || CPU_V6K || CPU_A <<
1703 help 469 help
1704 Say Y to include VFP support code i !! 470 If you say Y, the OpenPROM device tree will be available as a
1705 if your hardware includes a VFP uni !! 471 virtual file system, which you can mount to /proc/openprom by "mount
>> 472 -t openpromfs none /proc/openprom".
1706 473
1707 Please see <file:Documentation/arch !! 474 To compile the /proc/openprom support as a module, choose M here: the
1708 release notes and additional status !! 475 module will be called openpromfs.
1709 476
1710 Say N if your target does not have !! 477 Only choose N if you know in advance that you will not need to modify
>> 478 OpenPROM settings on the running system.
1711 479
1712 config VFPv3 !! 480 # Makefile helpers
>> 481 config SPARC64_PCI
1713 bool 482 bool
1714 depends on VFP !! 483 default y
1715 default y if CPU_V7 !! 484 depends on SPARC64 && PCI
1716 <<
1717 config NEON <<
1718 bool "Advanced SIMD (NEON) Extension <<
1719 depends on VFPv3 && CPU_V7 <<
1720 help <<
1721 Say Y to include support code for N <<
1722 Extension. <<
1723 485
1724 config KERNEL_MODE_NEON !! 486 config SPARC64_PCI_MSI
1725 bool "Support for NEON in kernel mode !! 487 bool
1726 depends on NEON && AEABI !! 488 default y
1727 help !! 489 depends on SPARC64_PCI && PCI_MSI
1728 Say Y to include support for NEON i <<
1729 490
1730 endmenu 491 endmenu
1731 492
1732 menu "Power management options" !! 493 config COMPAT
1733 <<
1734 source "kernel/power/Kconfig" <<
1735 <<
1736 config ARCH_SUSPEND_POSSIBLE <<
1737 depends on CPU_ARM920T || CPU_ARM926T <<
1738 CPU_V6 || CPU_V6K || CPU_V7 | <<
1739 def_bool y <<
1740 <<
1741 config ARM_CPU_SUSPEND <<
1742 def_bool PM_SLEEP || BL_SWITCHER || A <<
1743 depends on ARCH_SUSPEND_POSSIBLE <<
1744 <<
1745 config ARCH_HIBERNATION_POSSIBLE <<
1746 bool 494 bool
1747 depends on MMU !! 495 depends on SPARC64
1748 default y if ARCH_SUSPEND_POSSIBLE !! 496 default y
>> 497 select COMPAT_BINFMT_ELF if BINFMT_ELF
>> 498 select HAVE_UID16
>> 499 select ARCH_WANT_OLD_COMPAT_IPC
>> 500 select COMPAT_OLD_SIGACTION
1749 501
1750 endmenu !! 502 config SYSVIPC_COMPAT
>> 503 bool
>> 504 depends on COMPAT && SYSVIPC
>> 505 default y
1751 506
1752 source "arch/arm/Kconfig.assembler" !! 507 source "drivers/sbus/char/Kconfig"
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