1 # SPDX-License-Identifier: GPL-2.0 !! 1 # SPDX-License-Identifier: GPL-2.0-only
2 source "arch/powerpc/platforms/Kconfig.cputype <<
3 <<
4 config CC_HAS_ELFV2 <<
5 def_bool PPC64 && $(cc-option, -mabi=e <<
6 <<
7 config CC_HAS_PREFIXED <<
8 def_bool PPC64 && $(cc-option, -mcpu=p <<
9 <<
10 config CC_HAS_PCREL <<
11 # Clang has a bug (https://github.com/ <<
12 # where pcrel code is not generated if <<
13 # -mno-vsx options are also given. Wit <<
14 # instructions are generated from regu <<
15 # do pcrel yet. <<
16 def_bool PPC64 && CC_IS_GCC && $(cc-op <<
17 <<
18 config 32BIT <<
19 bool <<
20 default y if PPC32 <<
21 <<
22 config 64BIT 2 config 64BIT
23 bool !! 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
24 default y if PPC64 !! 4 default "$(ARCH)" = "sparc64"
25 !! 5 help
26 config LIVEPATCH_64 !! 6 SPARC is a family of RISC microprocessors designed and marketed by
27 def_bool PPC64 !! 7 Sun Microsystems, incorporated. They are very widely found in Sun
28 depends on LIVEPATCH !! 8 workstations and clones.
29 <<
30 config MMU <<
31 bool <<
32 default y <<
33 <<
34 config ARCH_MMAP_RND_BITS_MAX <<
35 # On Book3S 64, the default virtual ad <<
36 # is 2^47 (128TB). As a maximum, allow <<
37 # 32T of address space (2^45), which s <<
38 # between bottom-up and top-down alloc <<
39 # consume "normal" amounts of address <<
40 # and 4K page sizes. <<
41 default 29 if PPC_BOOK3S_64 && PPC_64K <<
42 default 33 if PPC_BOOK3S_64 <<
43 # <<
44 # On all other 64-bit platforms (curre <<
45 # address space is 2^46 (64TB). Allow <<
46 # of address space (2^44). Only 4K pag <<
47 default 32 if 64BIT # 32 = 44 (16T <<
48 # <<
49 # For 32-bit, use the compat values, a <<
50 default ARCH_MMAP_RND_COMPAT_BITS_MAX <<
51 <<
52 config ARCH_MMAP_RND_BITS_MIN <<
53 # Allow randomisation to consume up to <<
54 default 14 if 64BIT && PPC_64K_PAGES <<
55 default 18 if 64BIT <<
56 # <<
57 # For 32-bit, use the compat values, a <<
58 default ARCH_MMAP_RND_COMPAT_BITS_MIN <<
59 <<
60 config ARCH_MMAP_RND_COMPAT_BITS_MAX <<
61 # Total virtual address space for 32-b <<
62 # Allow randomisation to consume up to <<
63 default 11 if PPC_256K_PAGES # 11 = <<
64 default 13 if PPC_64K_PAGES # 13 = <<
65 default 15 if PPC_16K_PAGES # 15 = <<
66 default 17 # 17 = <<
67 <<
68 config ARCH_MMAP_RND_COMPAT_BITS_MIN <<
69 # Total virtual address space for 32-b <<
70 # Allow randomisation to consume up to <<
71 default 5 if PPC_256K_PAGES # 5 = <<
72 default 7 if PPC_64K_PAGES # 7 = <<
73 default 9 if PPC_16K_PAGES # 9 = <<
74 default 11 # 11 = <<
75 <<
76 config NR_IRQS <<
77 int "Number of virtual interrupt numbe <<
78 range 32 1048576 <<
79 default "512" <<
80 help <<
81 This defines the number of virtual i <<
82 can manage. Virtual interrupt number <<
83 /proc/interrupts. If you configure y <<
84 drivers will fail to load or worse - <<
85 <<
86 config NMI_IPI <<
87 bool <<
88 depends on SMP && (DEBUGGER || KEXEC_C <<
89 default y <<
90 <<
91 config PPC_WATCHDOG <<
92 bool <<
93 depends on HARDLOCKUP_DETECTOR_ARCH <<
94 default y <<
95 help <<
96 This is a placeholder when the power <<
97 watchdog is selected (arch/powerpc/k <<
98 selected via the generic lockup dete <<
99 have no standalone config option for <<
100 <<
101 config STACKTRACE_SUPPORT <<
102 bool <<
103 default y <<
104 <<
105 config LOCKDEP_SUPPORT <<
106 bool <<
107 default y <<
108 <<
109 config GENERIC_LOCKBREAK <<
110 bool <<
111 default y <<
112 depends on SMP && PREEMPTION && !PPC_Q <<
113 9
114 config GENERIC_HWEIGHT !! 10 Say yes to build a 64-bit kernel - formerly known as sparc64
115 bool !! 11 Say no to build a 32-bit kernel - formerly known as sparc
116 default y <<
117 12
118 config PPC !! 13 config SPARC
119 bool 14 bool
120 default y 15 default y
121 # !! 16 select ARCH_HAS_CPU_CACHE_ALIASING
122 # Please keep this list sorted alphabe !! 17 select ARCH_HAS_DMA_OPS
123 # !! 18 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
124 select ARCH_32BIT_OFF_T if PPC32 <<
125 select ARCH_DISABLE_KASAN_INLINE <<
126 select ARCH_DMA_DEFAULT_COHERENT <<
127 select ARCH_ENABLE_MEMORY_HOTPLUG <<
128 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
129 select ARCH_HAS_COPY_MC <<
130 select ARCH_HAS_CURRENT_STACK_POINTER <<
131 select ARCH_HAS_DEBUG_VIRTUAL <<
132 select ARCH_HAS_DEBUG_VM_PGTABLE <<
133 select ARCH_HAS_DEBUG_WX <<
134 select ARCH_HAS_DEVMEM_IS_ALLOWED <<
135 select ARCH_HAS_DMA_MAP_DIRECT <<
136 select ARCH_HAS_DMA_OPS <<
137 select ARCH_HAS_FORTIFY_SOURCE <<
138 select ARCH_HAS_GCOV_PROFILE_ALL <<
139 select ARCH_HAS_KCOV <<
140 select ARCH_HAS_KERNEL_FPU_SUPPORT <<
141 select ARCH_HAS_MEMBARRIER_CALLBACKS <<
142 select ARCH_HAS_MEMBARRIER_SYNC_CORE <<
143 select ARCH_HAS_MEMREMAP_COMPAT_ALIGN <<
144 select ARCH_HAS_MMIOWB <<
145 select ARCH_HAS_NON_OVERLAPPING_ADDRES <<
146 select ARCH_HAS_PHYS_TO_DMA <<
147 select ARCH_HAS_PMEM_API <<
148 select ARCH_HAS_PTE_DEVMAP <<
149 select ARCH_HAS_PTE_SPECIAL <<
150 select ARCH_HAS_SCALED_CPUTIME <<
151 select ARCH_HAS_SET_MEMORY <<
152 select ARCH_HAS_STRICT_KERNEL_RWX <<
153 select ARCH_HAS_STRICT_KERNEL_RWX <<
154 select ARCH_HAS_STRICT_MODULE_RWX <<
155 select ARCH_HAS_SYSCALL_WRAPPER <<
156 select ARCH_HAS_TICK_BROADCAST <<
157 select ARCH_HAS_UACCESS_FLUSHCACHE <<
158 select ARCH_HAS_UBSAN <<
159 select ARCH_HAVE_NMI_SAFE_CMPXCHG <<
160 select ARCH_HAVE_EXTRA_ELF_NOTES <<
161 select ARCH_KEEP_MEMBLOCK <<
162 select ARCH_MHP_MEMMAP_ON_MEMORY_ENABL <<
163 select ARCH_MIGHT_HAVE_PC_PARPORT <<
164 select ARCH_MIGHT_HAVE_PC_SERIO 19 select ARCH_MIGHT_HAVE_PC_SERIO
165 select ARCH_OPTIONAL_KERNEL_RWX !! 20 select OF
166 select ARCH_OPTIONAL_KERNEL_RWX_DEFAUL !! 21 select OF_PROMTREE
167 select ARCH_SPLIT_ARG64 !! 22 select HAVE_ASM_MODVERSIONS
168 select ARCH_STACKWALK !! 23 select HAVE_ARCH_KGDB if !SMP || SPARC64
169 select ARCH_SUPPORTS_ATOMIC_RMW !! 24 select HAVE_ARCH_TRACEHOOK
170 select ARCH_SUPPORTS_DEBUG_PAGEALLOC !! 25 select HAVE_ARCH_SECCOMP if SPARC64
171 select ARCH_USE_BUILTIN_BSWAP !! 26 select HAVE_EXIT_THREAD
172 select ARCH_USE_CMPXCHG_LOCKREF !! 27 select HAVE_PCI
173 select ARCH_USE_MEMTEST !! 28 select SYSCTL_EXCEPTION_TRACE
174 select ARCH_USE_QUEUED_RWLOCKS !! 29 select RTC_CLASS
175 select ARCH_WANT_DEFAULT_BPF_JIT !! 30 select RTC_DRV_M48T59
176 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ !! 31 select RTC_SYSTOHC
177 select ARCH_WANT_IPC_PARSE_VERSION !! 32 select HAVE_ARCH_JUMP_LABEL if SPARC64
178 select ARCH_WANT_IRQS_OFF_ACTIVATE_MM <<
179 select ARCH_WANT_LD_ORPHAN_WARN <<
180 select ARCH_WANT_OPTIMIZE_DAX_VMEMMAP <<
181 select ARCH_WANTS_MODULES_DATA_IN_VMAL <<
182 select ARCH_WEAK_RELEASE_ACQUIRE <<
183 select BINFMT_ELF <<
184 select BUILDTIME_TABLE_SORT <<
185 select CLONE_BACKWARDS <<
186 select CPUMASK_OFFSTACK <<
187 select DCACHE_WORD_ACCESS <<
188 select DMA_OPS_BYPASS <<
189 select DYNAMIC_FTRACE <<
190 select EDAC_ATOMIC_SCRUB <<
191 select EDAC_SUPPORT <<
192 select FTRACE_MCOUNT_USE_PATCHABLE_FUN <<
193 select FUNCTION_ALIGNMENT_4B <<
194 select GENERIC_ATOMIC64 <<
195 select GENERIC_CLOCKEVENTS_BROADCAST <<
196 select GENERIC_CMOS_UPDATE <<
197 select GENERIC_CPU_AUTOPROBE <<
198 select GENERIC_CPU_VULNERABILITIES <<
199 select GENERIC_EARLY_IOREMAP <<
200 select GENERIC_GETTIMEOFDAY <<
201 select GENERIC_IDLE_POLL_SETUP <<
202 select GENERIC_IOREMAP <<
203 select GENERIC_IRQ_SHOW 33 select GENERIC_IRQ_SHOW
204 select GENERIC_IRQ_SHOW_LEVEL !! 34 select ARCH_WANT_IPC_PARSE_VERSION
205 select GENERIC_PCI_IOMAP !! 35 select GENERIC_PCI_IOMAP
206 select GENERIC_PTDUMP !! 36 select HAS_IOPORT
>> 37 select HAVE_HARDLOCKUP_DETECTOR_SPARC64 if SPARC64
>> 38 select HAVE_CBPF_JIT if SPARC32
>> 39 select HAVE_EBPF_JIT if SPARC64
>> 40 select HAVE_DEBUG_BUGVERBOSE
207 select GENERIC_SMP_IDLE_THREAD 41 select GENERIC_SMP_IDLE_THREAD
208 select GENERIC_TIME_VSYSCALL <<
209 select GENERIC_VDSO_TIME_NS <<
210 select HAS_IOPORT <<
211 select HAVE_ARCH_AUDITSYSCALL <<
212 select HAVE_ARCH_HUGE_VMALLOC <<
213 select HAVE_ARCH_HUGE_VMAP <<
214 select HAVE_ARCH_JUMP_LABEL <<
215 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
216 select HAVE_ARCH_KASAN <<
217 select HAVE_ARCH_KASAN <<
218 select HAVE_ARCH_KASAN <<
219 select HAVE_ARCH_KASAN_VMALLOC <<
220 select HAVE_ARCH_KCSAN <<
221 select HAVE_ARCH_KFENCE <<
222 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS <<
223 select HAVE_ARCH_WITHIN_STACK_FRAMES <<
224 select HAVE_ARCH_KGDB <<
225 select HAVE_ARCH_MMAP_RND_BITS <<
226 select HAVE_ARCH_MMAP_RND_COMPAT_BITS <<
227 select HAVE_ARCH_NVRAM_OPS <<
228 select HAVE_ARCH_SECCOMP_FILTER <<
229 select HAVE_ARCH_TRACEHOOK <<
230 select HAVE_ASM_MODVERSIONS <<
231 select HAVE_CONTEXT_TRACKING_USER <<
232 select HAVE_C_RECORDMCOUNT <<
233 select HAVE_DEBUG_KMEMLEAK <<
234 select HAVE_DEBUG_STACKOVERFLOW <<
235 select HAVE_DYNAMIC_FTRACE <<
236 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
237 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
238 select HAVE_EBPF_JIT <<
239 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
240 select HAVE_GUP_FAST <<
241 select HAVE_FTRACE_MCOUNT_RECORD <<
242 select HAVE_FUNCTION_ARG_ACCESS_API <<
243 select HAVE_FUNCTION_DESCRIPTORS <<
244 select HAVE_FUNCTION_ERROR_INJECTION <<
245 select HAVE_FUNCTION_GRAPH_TRACER <<
246 select HAVE_FUNCTION_TRACER <<
247 select HAVE_GCC_PLUGINS <<
248 select HAVE_GENERIC_VDSO <<
249 select HAVE_HARDLOCKUP_DETECTOR_ARCH <<
250 select HAVE_HARDLOCKUP_DETECTOR_PERF <<
251 select HAVE_HW_BREAKPOINT <<
252 select HAVE_IOREMAP_PROT <<
253 select HAVE_IRQ_TIME_ACCOUNTING <<
254 select HAVE_KERNEL_GZIP <<
255 select HAVE_KERNEL_LZMA <<
256 select HAVE_KERNEL_LZO <<
257 select HAVE_KERNEL_XZ <<
258 select HAVE_KPROBES <<
259 select HAVE_KPROBES_ON_FTRACE <<
260 select HAVE_KRETPROBES <<
261 select HAVE_LD_DEAD_CODE_DATA_ELIMINAT <<
262 select HAVE_LIVEPATCH <<
263 select HAVE_MOD_ARCH_SPECIFIC <<
264 select HAVE_NMI <<
265 select HAVE_OPTPROBES <<
266 select HAVE_OBJTOOL <<
267 select HAVE_OBJTOOL_MCOUNT <<
268 select HAVE_PERF_EVENTS <<
269 select HAVE_PERF_EVENTS_NMI <<
270 select HAVE_PERF_REGS <<
271 select HAVE_PERF_USER_STACK_DUMP <<
272 select HAVE_RETHOOK <<
273 select HAVE_REGS_AND_STACK_ACCESS_API <<
274 select HAVE_RELIABLE_STACKTRACE <<
275 select HAVE_RSEQ <<
276 select HAVE_SETUP_PER_CPU_AREA <<
277 select HAVE_SOFTIRQ_ON_OWN_STACK <<
278 select HAVE_STACKPROTECTOR <<
279 select HAVE_STACKPROTECTOR <<
280 select HAVE_STATIC_CALL <<
281 select HAVE_SYSCALL_TRACEPOINTS <<
282 select HAVE_VIRT_CPU_ACCOUNTING <<
283 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
284 select HOTPLUG_SMT <<
285 select SMT_NUM_THREADS_DYNAMIC <<
286 select HUGETLB_PAGE_SIZE_VARIABLE <<
287 select IOMMU_HELPER <<
288 select IRQ_DOMAIN <<
289 select IRQ_FORCED_THREADING <<
290 select KASAN_VMALLOC <<
291 select LOCK_MM_AND_FIND_VMA <<
292 select MMU_GATHER_PAGE_SIZE <<
293 select MMU_GATHER_RCU_TABLE_FREE <<
294 select MMU_GATHER_MERGE_VMAS <<
295 select MMU_LAZY_TLB_SHOOTDOWN <<
296 select MODULES_USE_ELF_RELA 42 select MODULES_USE_ELF_RELA
297 select NEED_DMA_MAP_STATE !! 43 select PCI_SYSCALL if PCI
298 select NEED_PER_CPU_EMBED_FIRST_CHUNK !! 44 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
299 select NEED_PER_CPU_PAGE_FIRST_CHUNK !! 45 select ODD_RT_SIGACTION
300 select NEED_SG_DMA_LENGTH <<
301 select OF <<
302 select OF_EARLY_FLATTREE <<
303 select OLD_SIGACTION <<
304 select OLD_SIGSUSPEND 46 select OLD_SIGSUSPEND
305 select PCI_DOMAINS !! 47 select CPU_NO_EFFICIENT_FFS
306 select PCI_MSI_ARCH_FALLBACKS !! 48 select LOCKDEP_SMALL if LOCKDEP
307 select PCI_SYSCALL !! 49 select NEED_DMA_MAP_STATE
308 select PPC_DAWR !! 50 select NEED_SG_DMA_LENGTH
309 select RTC_LIB <<
310 select SPARSE_IRQ <<
311 select STRICT_KERNEL_RWX if STRICT_MOD <<
312 select SYSCTL_EXCEPTION_TRACE <<
313 select THREAD_INFO_IN_TASK <<
314 select TRACE_IRQFLAGS_SUPPORT 51 select TRACE_IRQFLAGS_SUPPORT
315 select VDSO_GETRANDOM <<
316 # <<
317 # Please keep this list sorted alphabe <<
318 # <<
319 52
320 config PPC_BARRIER_NOSPEC !! 53 config SPARC32
321 bool !! 54 def_bool !64BIT
322 default y !! 55 select ARCH_32BIT_OFF_T
323 depends on PPC_BOOK3S_64 || PPC_E500 !! 56 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
324 !! 57 select ARCH_HAS_SYNC_DMA_FOR_CPU
325 config PPC_HAS_LBARX_LHARX !! 58 select CLZ_TAB
326 bool !! 59 select DMA_DIRECT_REMAP
327 !! 60 select GENERIC_ATOMIC64
328 config EARLY_PRINTK !! 61 select GENERIC_LIB_CMPDI2
329 bool !! 62 select GENERIC_LIB_UCMPDI2
330 default y !! 63 select HAVE_UID16
>> 64 select HAVE_PAGE_SIZE_4KB
>> 65 select LOCK_MM_AND_FIND_VMA
>> 66 select OLD_SIGACTION
>> 67 select ZONE_DMA
331 68
332 config PANIC_TIMEOUT !! 69 config SPARC64
333 int !! 70 def_bool 64BIT
334 default 180 !! 71 select ALTERNATE_USER_ADDRESS_SPACE
>> 72 select HAVE_FUNCTION_TRACER
>> 73 select HAVE_FUNCTION_GRAPH_TRACER
>> 74 select HAVE_KRETPROBES
>> 75 select HAVE_KPROBES
>> 76 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 77 select MMU_GATHER_MERGE_VMAS
>> 78 select MMU_GATHER_NO_FLUSH_CACHE
>> 79 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 80 select HAVE_DYNAMIC_FTRACE
>> 81 select HAVE_FTRACE_MCOUNT_RECORD
>> 82 select HAVE_PAGE_SIZE_8KB
>> 83 select HAVE_SYSCALL_TRACEPOINTS
>> 84 select HAVE_CONTEXT_TRACKING_USER
>> 85 select HAVE_TIF_NOHZ
>> 86 select HAVE_DEBUG_KMEMLEAK
>> 87 select IOMMU_HELPER
>> 88 select SPARSE_IRQ
>> 89 select RTC_DRV_CMOS
>> 90 select RTC_DRV_BQ4802
>> 91 select RTC_DRV_SUN4V
>> 92 select RTC_DRV_STARFIRE
>> 93 select HAVE_PERF_EVENTS
>> 94 select PERF_USE_VMALLOC
>> 95 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 96 select HAVE_C_RECORDMCOUNT
>> 97 select HAVE_ARCH_AUDITSYSCALL
>> 98 select ARCH_SUPPORTS_ATOMIC_RMW
>> 99 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 100 select HAVE_NMI
>> 101 select HAVE_REGS_AND_STACK_ACCESS_API
>> 102 select ARCH_USE_QUEUED_RWLOCKS
>> 103 select ARCH_USE_QUEUED_SPINLOCKS
>> 104 select GENERIC_TIME_VSYSCALL
>> 105 select ARCH_CLOCKSOURCE_DATA
>> 106 select ARCH_HAS_PTE_SPECIAL
>> 107 select PCI_DOMAINS if PCI
>> 108 select ARCH_HAS_GIGANTIC_PAGE
>> 109 select HAVE_SOFTIRQ_ON_OWN_STACK
>> 110 select HAVE_SETUP_PER_CPU_AREA
>> 111 select NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 112 select NEED_PER_CPU_PAGE_FIRST_CHUNK
335 113
336 config COMPAT !! 114 config ARCH_PROC_KCORE_TEXT
337 bool "Enable support for 32bit binarie !! 115 def_bool y
338 depends on PPC64 <<
339 default y if !CPU_LITTLE_ENDIAN <<
340 select ARCH_WANT_OLD_COMPAT_IPC <<
341 select COMPAT_OLD_SIGACTION <<
342 116
343 config SCHED_OMIT_FRAME_POINTER !! 117 config CPU_BIG_ENDIAN
344 bool !! 118 def_bool y
345 default y <<
346 119
347 config ARCH_MAY_HAVE_PC_FDC !! 120 config STACKTRACE_SUPPORT
348 bool 121 bool
349 default PCI !! 122 default y if SPARC64
350 123
351 config PPC_UDBG_16550 !! 124 config LOCKDEP_SUPPORT
352 bool 125 bool
>> 126 default y if SPARC64
353 127
354 config GENERIC_TBSYNC !! 128 config ARCH_HIBERNATION_POSSIBLE
355 bool !! 129 def_bool y if SPARC64
356 default y if PPC32 && SMP <<
357 130
358 config AUDIT_ARCH 131 config AUDIT_ARCH
359 bool 132 bool
360 default y 133 default y
361 134
362 config GENERIC_BUG !! 135 config MMU
363 bool 136 bool
364 default y 137 default y
365 depends on BUG <<
366 138
367 config GENERIC_BUG_RELATIVE_POINTERS !! 139 config HIGHMEM
368 def_bool y <<
369 depends on GENERIC_BUG <<
370 <<
371 config SYS_SUPPORTS_APM_EMULATION <<
372 default y if PMAC_APM_EMU <<
373 bool <<
374 <<
375 config EPAPR_BOOT <<
376 bool 140 bool
377 help !! 141 default y if SPARC32
378 Used to allow a board to specify it !! 142 select KMAP_LOCAL
379 143
380 config DEFAULT_UIMAGE !! 144 config PGTABLE_LEVELS
381 bool !! 145 default 4 if 64BIT
382 help !! 146 default 3
383 Used to allow a board to specify it <<
384 147
385 config ARCH_HIBERNATION_POSSIBLE !! 148 config ARCH_SUPPORTS_UPROBES
386 bool !! 149 def_bool y if SPARC64
387 default y <<
388 150
389 config ARCH_SUSPEND_POSSIBLE !! 151 menu "Processor type and features"
390 def_bool y <<
391 depends on ADB_PMU || PPC_EFIKA || PPC <<
392 (PPC_85xx && !PPC_E500MC) | <<
393 || 44x <<
394 152
395 config ARCH_SUSPEND_NONZERO_CPU !! 153 config SMP
396 def_bool y !! 154 bool "Symmetric multi-processing support"
397 depends on PPC_POWERNV || PPC_PSERIES !! 155 help
>> 156 This enables support for systems with more than one CPU. If you have
>> 157 a system with only one CPU, say N. If you have a system with more
>> 158 than one CPU, say Y.
398 159
399 config ARCH_HAS_ADD_PAGES !! 160 If you say N here, the kernel will run on uni- and multiprocessor
400 def_bool y !! 161 machines, but will use only one CPU of a multiprocessor machine. If
401 depends on ARCH_ENABLE_MEMORY_HOTPLUG !! 162 you say Y here, the kernel will run on many, but not all,
>> 163 uniprocessor machines. On a uniprocessor machine, the kernel
>> 164 will run faster if you say N here.
402 165
403 config PPC_DCR_NATIVE !! 166 People using multiprocessor machines who say Y here should also say
404 bool !! 167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 168 Management" code will be disabled if you say Y here.
405 169
406 config PPC_DCR_MMIO !! 170 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
407 bool !! 171 available at <https://www.tldp.org/docs.html#howto>.
408 172
409 config PPC_DCR !! 173 If you don't know what to do here, say N.
410 bool <<
411 depends on PPC_DCR_NATIVE || PPC_DCR_M <<
412 default y <<
413 174
414 config PPC_PCI_OF_BUS_MAP !! 175 config NR_CPUS
415 bool "Use pci_to_OF_bus_map (deprecate !! 176 int "Maximum number of CPUs"
416 depends on PPC32 !! 177 depends on SMP
417 depends on PPC_PMAC || PPC_CHRP !! 178 range 2 32 if SPARC32
418 help !! 179 range 2 4096 if SPARC64
419 This option uses pci_to_OF_bus_map t !! 180 default 32 if SPARC32
420 restricts the system to only having !! 181 default 4096 if SPARC64
421 the "pci-OF-bus-map" property to be <<
422 182
423 If unsure, say "N". !! 183 source "kernel/Kconfig.hz"
424 184
425 config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT !! 185 config GENERIC_HWEIGHT
426 depends on PPC32 !! 186 bool
427 depends on !PPC_PCI_OF_BUS_MAP <<
428 bool "Assign PCI bus numbers from zero <<
429 default y 187 default y
430 help <<
431 By default on PPC32 were PCI bus num <<
432 So system could have only 256 PCI bu <<
433 PCI domains. When this option is ena <<
434 PCI domain dependent and each PCI co <<
435 256 PCI buses, like it is on other L <<
436 188
437 config PPC_OF_PLATFORM_PCI !! 189 config GENERIC_CALIBRATE_DELAY
438 bool 190 bool
439 depends on PCI !! 191 default y
440 depends on PPC64 # not supported on 32 <<
441 <<
442 config ARCH_SUPPORTS_UPROBES <<
443 def_bool y <<
444 192
445 config PPC_ADV_DEBUG_REGS !! 193 config ARCH_MAY_HAVE_PC_FDC
446 bool 194 bool
447 depends on BOOKE <<
448 default y 195 default y
449 196
450 config PPC_ADV_DEBUG_IACS !! 197 config EMULATED_CMPXCHG
451 int !! 198 bool
452 depends on PPC_ADV_DEBUG_REGS !! 199 default y if SPARC32
453 default 4 if 44x !! 200 help
454 default 2 !! 201 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
455 !! 202 is emulated, and therefore it is not completely atomic.
456 config PPC_ADV_DEBUG_DACS <<
457 int <<
458 depends on PPC_ADV_DEBUG_REGS <<
459 default 2 <<
460 <<
461 config PPC_ADV_DEBUG_DVCS <<
462 int <<
463 depends on PPC_ADV_DEBUG_REGS <<
464 default 2 if 44x <<
465 default 0 <<
466 203
467 config PPC_ADV_DEBUG_DAC_RANGE !! 204 # Makefile helpers
>> 205 config SPARC32_SMP
468 bool 206 bool
469 depends on PPC_ADV_DEBUG_REGS && 44x <<
470 default y 207 default y
>> 208 depends on SPARC32 && SMP
471 209
472 config PPC_DAWR !! 210 config SPARC64_SMP
473 bool 211 bool
>> 212 default y
>> 213 depends on SPARC64 && SMP
474 214
475 config PGTABLE_LEVELS !! 215 config EARLYFB
476 int !! 216 bool "Support for early boot text console"
477 default 2 if !PPC64 !! 217 default y
478 default 4 !! 218 depends on SPARC64
479 !! 219 select FONT_SUN8x16
480 source "arch/powerpc/sysdev/Kconfig" !! 220 select FONT_SUPPORT
481 source "arch/powerpc/platforms/Kconfig" <<
482 <<
483 menu "Kernel options" <<
484 <<
485 config HIGHMEM <<
486 bool "High memory support" <<
487 depends on PPC32 <<
488 select KMAP_LOCAL <<
489 <<
490 source "kernel/Kconfig.hz" <<
491 <<
492 config MATH_EMULATION <<
493 bool "Math emulation" <<
494 depends on 44x || PPC_8xx || PPC_MPC83 <<
495 select PPC_FPU_REGS <<
496 help <<
497 Some PowerPC chips designed for embe <<
498 a floating-point unit and therefore <<
499 floating-point instructions in the P <<
500 say Y here, the kernel will include <<
501 unit, which will allow programs that <<
502 instructions to run. <<
503 <<
504 This is also useful to emulate missi <<
505 such as fsqrt on cores that do have <<
506 them (such as Freescale BookE). <<
507 <<
508 choice <<
509 prompt "Math emulation options" <<
510 default MATH_EMULATION_FULL <<
511 depends on MATH_EMULATION <<
512 <<
513 config MATH_EMULATION_FULL <<
514 bool "Emulate all the floating point i <<
515 help <<
516 Select this option will enable the k <<
517 all the floating point instructions. <<
518 a FPU, you should select this. <<
519 <<
520 config MATH_EMULATION_HW_UNIMPLEMENTED <<
521 bool "Just emulate the FPU unimplement <<
522 help <<
523 Select this if you know there does h <<
524 SoC, but some floating point instruc <<
525 <<
526 endchoice <<
527 <<
528 config PPC_TRANSACTIONAL_MEM <<
529 bool "Transactional Memory support for <<
530 depends on PPC_BOOK3S_64 <<
531 depends on SMP <<
532 select ALTIVEC <<
533 select VSX <<
534 help 221 help
535 Support user-mode Transactional Memo !! 222 Say Y here to enable a faster early framebuffer boot console.
536 <<
537 config PPC_UV <<
538 bool "Ultravisor support" <<
539 depends on KVM_BOOK3S_HV_POSSIBLE <<
540 depends on DEVICE_PRIVATE <<
541 default n <<
542 help <<
543 This option paravirtualizes the kern <<
544 supports the Protected Execution Fac <<
545 the ultravisor firmware runs at a pr <<
546 hypervisor. <<
547 <<
548 If unsure, say "N". <<
549 <<
550 config LD_HEAD_STUB_CATCH <<
551 bool "Reserve 256 bytes to cope with l <<
552 depends on PPC64 <<
553 help <<
554 Very large kernels can cause linker <<
555 code in head_64.S, which moves the h <<
556 specified location. This option can <<
557 <<
558 If unsure, say "N". <<
559 <<
560 config MPROFILE_KERNEL <<
561 depends on PPC64_ELF_ABI_V2 && FUNCTIO <<
562 def_bool $(success,$(srctree)/arch/pow <<
563 def_bool $(success,$(srctree)/arch/pow <<
564 <<
565 config ARCH_USING_PATCHABLE_FUNCTION_ENTRY <<
566 depends on FUNCTION_TRACER && (PPC32 | <<
567 depends on $(cc-option,-fpatchable-fun <<
568 def_bool y if PPC32 <<
569 def_bool $(success,$(srctree)/arch/pow <<
570 def_bool $(success,$(srctree)/arch/pow <<
571 223
572 config HOTPLUG_CPU 224 config HOTPLUG_CPU
573 bool "Support for enabling/disabling C !! 225 bool "Support for hot-pluggable CPUs"
574 depends on SMP && (PPC_PSERIES || \ !! 226 depends on SPARC64 && SMP
575 PPC_PMAC || PPC_POWERNV || FSL <<
576 help <<
577 Say Y here to be able to disable and <<
578 CPUs at runtime on SMP machines. <<
579 <<
580 Say N if you are unsure. <<
581 <<
582 config INTERRUPT_SANITIZE_REGISTERS <<
583 bool "Clear gprs on interrupt arrival" <<
584 depends on PPC64 && ARCH_HAS_SYSCALL_W <<
585 default PPC_BOOK3E_64 || PPC_PSERIES | <<
586 help <<
587 Reduce the influence of user registe <<
588 syscalls through clearing user state <<
589 the exception. <<
590 <<
591 config PPC_QUEUED_SPINLOCKS <<
592 bool "Queued spinlocks" if EXPERT <<
593 depends on SMP <<
594 default PPC_BOOK3S_64 <<
595 help 227 help
596 Say Y here to use queued spinlocks w !! 228 Say Y here to experiment with turning CPUs off and on. CPUs
597 fairness on large SMP and NUMA syste !! 229 can be controlled through /sys/devices/system/cpu/cpu#.
598 performance. !! 230 Say N if you want to disable CPU hotplug.
599 <<
600 config ARCH_CPU_PROBE_RELEASE <<
601 def_bool y <<
602 depends on HOTPLUG_CPU <<
603 231
604 config PPC64_SUPPORTS_MEMORY_FAILURE !! 232 if SPARC64
605 bool "Add support for memory hwpoison" !! 233 source "drivers/cpufreq/Kconfig"
606 depends on PPC_BOOK3S_64 !! 234 endif
607 default "y" if PPC_POWERNV <<
608 select ARCH_SUPPORTS_MEMORY_FAILURE <<
609 <<
610 config ARCH_SUPPORTS_KEXEC <<
611 def_bool PPC_BOOK3S || PPC_E500 || (44 <<
612 <<
613 config ARCH_SUPPORTS_KEXEC_FILE <<
614 def_bool PPC64 <<
615 <<
616 config ARCH_SUPPORTS_KEXEC_PURGATORY <<
617 def_bool y <<
618 235
619 config ARCH_SELECTS_KEXEC_FILE !! 236 config US3_MC
620 def_bool y !! 237 tristate "UltraSPARC-III Memory Controller driver"
621 depends on KEXEC_FILE !! 238 depends on SPARC64
622 select KEXEC_ELF !! 239 default y
623 select HAVE_IMA_KEXEC if IMA <<
624 <<
625 config PPC64_BIG_ENDIAN_ELF_ABI_V2 <<
626 # Option is available to BFD, but LLD <<
627 # always true there. <<
628 prompt "Build big-endian kernel using <<
629 def_bool y <<
630 depends on PPC64 && CPU_BIG_ENDIAN <<
631 depends on CC_HAS_ELFV2 <<
632 help 240 help
633 This builds the kernel image using t !! 241 This adds a driver for the UltraSPARC-III memory controller.
634 V2 ABI Specification", which has a r !! 242 Loading this driver allows exact mnemonic strings to be
635 function calls. This internal kernel !! 243 printed in the event of a memory error, so that the faulty DIMM
636 userspace compatibility. !! 244 on the motherboard can be matched to the error.
637 <<
638 The V2 ABI is standard for 64-bit li <<
639 it is less well tested by kernel and <<
640 build userspace this way, and it can <<
641 <<
642 config RELOCATABLE <<
643 bool "Build a relocatable kernel" <<
644 depends on PPC64 || (FLATMEM && (44x | <<
645 select NONSTATIC_KERNEL <<
646 help <<
647 This builds a kernel image that is c <<
648 location the kernel is loaded at. Fo <<
649 alignment restrictions, and this fea <<
650 DYNAMIC_MEMSTART and hence overrides <<
651 16k-aligned base address. The kernel <<
652 position-independent executable (PIE <<
653 which are processed early in the boo <<
654 <<
655 One use is for the kexec on panic ca <<
656 must live at a different physical ad <<
657 kernel. <<
658 <<
659 Note: If CONFIG_RELOCATABLE=y, then <<
660 it has been loaded at and the compil <<
661 CONFIG_PHYSICAL_START is ignored. H <<
662 setting can still be useful to bootw <<
663 load address of the kernel (eg. u-bo <<
664 <<
665 config RANDOMIZE_BASE <<
666 bool "Randomize the address of the ker <<
667 depends on PPC_85xx && FLATMEM <<
668 depends on RELOCATABLE <<
669 help <<
670 Randomizes the virtual address at wh <<
671 loaded, as a security feature that d <<
672 relying on knowledge of the location <<
673 <<
674 If unsure, say Y. <<
675 <<
676 config RELOCATABLE_TEST <<
677 bool "Test relocatable kernel" <<
678 depends on (PPC64 && RELOCATABLE) <<
679 help <<
680 This runs the relocatable kernel at <<
681 loaded at, which tends to be non-zer <<
682 relocation code. <<
683 <<
684 config ARCH_SUPPORTS_CRASH_DUMP <<
685 def_bool PPC64 || PPC_BOOK3S_32 || PPC <<
686 <<
687 config ARCH_SELECTS_CRASH_DUMP <<
688 def_bool y <<
689 depends on CRASH_DUMP <<
690 select RELOCATABLE if PPC64 || 44x || <<
691 <<
692 config ARCH_SUPPORTS_CRASH_HOTPLUG <<
693 def_bool y <<
694 depends on PPC64 <<
695 245
696 config FA_DUMP !! 246 If in doubt, say Y, as this information can be very useful.
697 bool "Firmware-assisted dump" <<
698 depends on CRASH_DUMP && PPC64 && (PPC <<
699 help <<
700 A robust mechanism to get reliable k <<
701 assistance from firmware. This appro <<
702 instead firmware assists in booting <<
703 while preserving memory contents. Fi <<
704 is meant to be a kdump replacement o <<
705 speed not possible without system fi <<
706 <<
707 If unsure, say "y". Only special ker <<
708 need to say "N" here. <<
709 <<
710 config PRESERVE_FA_DUMP <<
711 bool "Preserve Firmware-assisted dump" <<
712 depends on PPC64 && PPC_POWERNV && !FA <<
713 help <<
714 On a kernel with FA_DUMP disabled, t <<
715 crash data from a previously crash'e <<
716 memory preserving kernel boot would <<
717 Petitboot kernel is the typical usec <<
718 <<
719 config OPAL_CORE <<
720 bool "Export OPAL memory as /sys/firmw <<
721 depends on PPC64 && PPC_POWERNV <<
722 help <<
723 This option uses the MPIPL support i <<
724 ELF core of OPAL memory after a cras <<
725 as /sys/firmware/opal/core file whic <<
726 OPAL crashes using GDB. <<
727 247
728 config IRQ_ALL_CPUS !! 248 # Global things across all Sun machines.
729 bool "Distribute interrupts on all CPU !! 249 config GENERIC_LOCKBREAK
730 depends on SMP !! 250 bool
731 help !! 251 default y
732 This option gives the kernel permiss !! 252 depends on SPARC64 && SMP && PREEMPTION
733 multiple CPUs. Saying N here will r <<
734 CPU. Generally saying Y is safe, al <<
735 reported with SMP Power Macintoshes <<
736 253
737 config NUMA 254 config NUMA
738 bool "NUMA Memory Allocation and Sched !! 255 bool "NUMA support"
739 depends on PPC64 && SMP !! 256 depends on SPARC64 && SMP
740 default y if PPC_PSERIES || PPC_POWERN <<
741 select USE_PERCPU_NUMA_NODE_ID <<
742 help <<
743 Enable NUMA (Non-Uniform Memory Acce <<
744 <<
745 The kernel will try to allocate memo <<
746 local memory controller of the CPU a <<
747 NUMA awareness to the kernel. <<
748 257
749 config NODES_SHIFT 258 config NODES_SHIFT
750 int !! 259 int "Maximum NUMA Nodes (as a power of 2)"
751 default "8" if PPC64 !! 260 range 4 5 if SPARC64
752 default "4" !! 261 default "5"
753 depends on NUMA 262 depends on NUMA
754 !! 263 help
755 config HAVE_MEMORYLESS_NODES !! 264 Specify the maximum number of NUMA Nodes available on the target
756 def_bool y !! 265 system. Increases memory reserved to accommodate various tables.
757 depends on NUMA <<
758 <<
759 config ARCH_SELECT_MEMORY_MODEL <<
760 def_bool y <<
761 depends on PPC64 <<
762 <<
763 config ARCH_FLATMEM_ENABLE <<
764 def_bool y <<
765 depends on (PPC64 && !NUMA) || PPC32 <<
766 266
767 config ARCH_SPARSEMEM_ENABLE 267 config ARCH_SPARSEMEM_ENABLE
768 def_bool y !! 268 def_bool y if SPARC64
769 depends on PPC64 <<
770 select SPARSEMEM_VMEMMAP_ENABLE 269 select SPARSEMEM_VMEMMAP_ENABLE
771 270
772 config ARCH_SPARSEMEM_DEFAULT 271 config ARCH_SPARSEMEM_DEFAULT
773 def_bool y !! 272 def_bool y if SPARC64
774 depends on PPC_BOOK3S_64 <<
775 <<
776 config ILLEGAL_POINTER_VALUE <<
777 hex <<
778 # This is roughly half way between the <<
779 # of kernel space, which seems about a <<
780 default 0x5deadbeef0000000 if PPC64 <<
781 default 0 <<
782 <<
783 config ARCH_MEMORY_PROBE <<
784 def_bool y <<
785 depends on MEMORY_HOTPLUG <<
786 <<
787 choice <<
788 prompt "Page size" <<
789 default PPC_64K_PAGES if PPC_BOOK3S_64 <<
790 default PPC_4K_PAGES <<
791 help <<
792 Select the kernel logical page size. <<
793 will reduce software overhead at eac <<
794 hardware prefetch mechanisms to be m <<
795 larger dma transfers increasing IO e <<
796 overhead. However the utilization of <<
797 For example, each cached file will u <<
798 page size to hold its contents and t <<
799 end of file and the end of page is w <<
800 <<
801 Some dedicated systems, such as soft <<
802 accelerated calculations, have shown <<
803 <<
804 If you configure a 64 bit kernel for <<
805 processor does not support them, the <<
806 them with 4k pages, loading them on <<
807 reduced software overhead and larger <<
808 For the 32 bit kernel, a large page <<
809 unless it is supported by the config <<
810 <<
811 If unsure, choose 4K_PAGES. <<
812 <<
813 config PPC_4K_PAGES <<
814 bool "4k page size" <<
815 select HAVE_ARCH_SOFT_DIRTY if PPC_BOO <<
816 select HAVE_PAGE_SIZE_4KB <<
817 <<
818 config PPC_16K_PAGES <<
819 bool "16k page size" <<
820 depends on 44x || PPC_8xx <<
821 select HAVE_PAGE_SIZE_16KB <<
822 <<
823 config PPC_64K_PAGES <<
824 bool "64k page size" <<
825 depends on 44x || PPC_BOOK3S_64 <<
826 select HAVE_ARCH_SOFT_DIRTY if PPC_BOO <<
827 select HAVE_PAGE_SIZE_64KB <<
828 <<
829 config PPC_256K_PAGES <<
830 bool "256k page size (Requires non-sta <<
831 depends on 44x && !PPC_47x <<
832 select HAVE_PAGE_SIZE_256KB <<
833 help <<
834 Make the page size 256k. <<
835 <<
836 The kernel will only be able to run <<
837 compiled with '-zmax-page-size' set <<
838 binutils later than 2.17.50.0.3, or <<
839 definition from 0x10000 to 0x40000 i <<
840 <<
841 endchoice <<
842 <<
843 config THREAD_SHIFT <<
844 int "Thread shift" if EXPERT <<
845 range 13 15 <<
846 default "15" if PPC_256K_PAGES <<
847 default "15" if PPC_PSERIES || PPC_POW <<
848 default "14" if PPC64 <<
849 default "13" <<
850 help <<
851 Used to define the stack size. The d <<
852 want. Only change this if you know w <<
853 <<
854 config DATA_SHIFT_BOOL <<
855 bool "Set custom data alignment" <<
856 depends on ADVANCED_OPTIONS <<
857 depends on STRICT_KERNEL_RWX || DEBUG_ <<
858 depends on (PPC_8xx && !PIN_TLB_DATA & <<
859 PPC_BOOK3S_32 || PPC_85xx <<
860 help <<
861 This option allows you to set the ke <<
862 RAM is mapped by blocks, the alignme <<
863 number of possible blocks. The defau <<
864 <<
865 Say N here unless you know what you <<
866 <<
867 config DATA_SHIFT <<
868 int "Data shift" if DATA_SHIFT_BOOL <<
869 default 24 if STRICT_KERNEL_RWX && PPC <<
870 range 17 28 if (STRICT_KERNEL_RWX || D <<
871 range 19 23 if (STRICT_KERNEL_RWX || D <<
872 range 20 24 if (STRICT_KERNEL_RWX || D <<
873 default 22 if STRICT_KERNEL_RWX && PPC <<
874 default 18 if (DEBUG_PAGEALLOC || KFEN <<
875 default 23 if (STRICT_KERNEL_RWX || DE <<
876 (PIN_TLB_DATA || PIN_TLB <<
877 default 19 if (STRICT_KERNEL_RWX || DE <<
878 default 24 if STRICT_KERNEL_RWX && PPC <<
879 default PAGE_SHIFT <<
880 help <<
881 On Book3S 32 (603+), DBATs are used <<
882 Smaller is the alignment, greater is <<
883 <<
884 On 8xx, large pages (512kb or 8M) ar <<
885 memory. Aligning to 8M reduces TLB m <<
886 in that case. If PIN_TLB is selected <<
887 8M pages will be pinned. <<
888 273
889 config ARCH_FORCE_MAX_ORDER 274 config ARCH_FORCE_MAX_ORDER
890 int "Order of maximal physically conti 275 int "Order of maximal physically contiguous allocations"
891 range 7 8 if PPC64 && PPC_64K_PAGES !! 276 default "12"
892 default "8" if PPC64 && PPC_64K_PAGES <<
893 range 12 12 if PPC64 && !PPC_64K_PAGES <<
894 default "12" if PPC64 && !PPC_64K_PAGE <<
895 range 8 10 if PPC32 && PPC_16K_PAGES <<
896 default "8" if PPC32 && PPC_16K_PAGES <<
897 range 6 10 if PPC32 && PPC_64K_PAGES <<
898 default "6" if PPC32 && PPC_64K_PAGES <<
899 range 4 10 if PPC32 && PPC_256K_PAGES <<
900 default "4" if PPC32 && PPC_256K_PAGES <<
901 range 10 12 <<
902 default "10" <<
903 help 277 help
904 The kernel page allocator limits the 278 The kernel page allocator limits the size of maximal physically
905 contiguous allocations. The limit is 279 contiguous allocations. The limit is called MAX_PAGE_ORDER and it
906 defines the maximal power of two of 280 defines the maximal power of two of number of pages that can be
907 allocated as a single contiguous blo 281 allocated as a single contiguous block. This option allows
908 overriding the default setting when 282 overriding the default setting when ability to allocate very
909 large blocks of physically contiguou 283 large blocks of physically contiguous memory is required.
910 284
911 The page size is not necessarily 4KB <<
912 systems, 64KB pages can be enabled v <<
913 this in mind when choosing a value f <<
914 <<
915 Don't change if unsure. 285 Don't change if unsure.
916 286
917 config PPC_SUBPAGE_PROT !! 287 if SPARC64 || COMPILE_TEST
918 bool "Support setting protections for !! 288 source "kernel/power/Kconfig"
919 default n !! 289 endif
920 depends on PPC_64S_HASH_MMU && PPC_64K <<
921 help <<
922 This option adds support for system <<
923 to set access permissions (read/writ <<
924 on the 4k subpages of each 64k page. <<
925 <<
926 If unsure, say N here. <<
927 <<
928 config PPC_PROT_SAO_LPAR <<
929 bool "Support PROT_SAO mappings in LPA <<
930 depends on PPC_BOOK3S_64 <<
931 help <<
932 This option adds support for PROT_SA <<
933 inside LPARs on supported CPUs. <<
934 <<
935 This may cause issues when performin <<
936 a CPU that supports SAO to one that <<
937 <<
938 If unsure, say N here. <<
939 <<
940 config PPC_COPRO_BASE <<
941 bool <<
942 290
943 config SCHED_SMT 291 config SCHED_SMT
944 bool "SMT (Hyperthreading) scheduler s 292 bool "SMT (Hyperthreading) scheduler support"
945 depends on PPC64 && SMP !! 293 depends on SPARC64 && SMP
>> 294 default y
946 help 295 help
947 SMT scheduler support improves the C 296 SMT scheduler support improves the CPU scheduler's decision making
948 when dealing with POWER5 cpus at a c !! 297 when dealing with SPARC cpus at a cost of slightly increased overhead
949 overhead in some places. If unsure s !! 298 in some places. If unsure say N here.
950 299
951 config PPC_DENORMALISATION !! 300 config SCHED_MC
952 bool "PowerPC denormalisation exceptio !! 301 bool "Multi-core scheduler support"
953 depends on PPC_BOOK3S_64 !! 302 depends on SPARC64 && SMP
954 default "y" if PPC_POWERNV !! 303 default y
955 help 304 help
956 Add support for handling denormalisa !! 305 Multi-core scheduler support improves the CPU scheduler's decision
957 values. Useful for bare metal only. !! 306 making when dealing with multi-core CPU chips at a cost of slightly
>> 307 increased overhead in some places. If unsure say N here.
>> 308
>> 309 config CMDLINE_BOOL
>> 310 bool "Default bootloader kernel arguments"
>> 311 depends on SPARC64
958 312
959 config CMDLINE 313 config CMDLINE
960 string "Initial kernel command string" 314 string "Initial kernel command string"
961 default "" !! 315 depends on CMDLINE_BOOL
>> 316 default "console=ttyS0,9600 root=/dev/sda1"
962 help 317 help
963 On some platforms, there is currentl !! 318 Say Y here if you want to be able to pass default arguments to
964 pass arguments to the kernel. For th !! 319 the kernel. This will be overridden by the bootloader, if you
965 some command-line options at build t !! 320 use one (such as SILO). This is most useful if you want to boot
966 most cases you will need to specify !! 321 a kernel from TFTP, and want default options to be available
967 !! 322 with having them passed on the command line.
968 choice <<
969 prompt "Kernel command line type" <<
970 depends on CMDLINE != "" <<
971 default CMDLINE_FROM_BOOTLOADER <<
972 323
973 config CMDLINE_FROM_BOOTLOADER !! 324 NOTE: This option WILL override the PROM bootargs setting!
974 bool "Use bootloader kernel arguments <<
975 help <<
976 Uses the command-line options passed <<
977 the boot loader doesn't provide any, <<
978 string provided in CMDLINE will be u <<
979 <<
980 config CMDLINE_EXTEND <<
981 bool "Extend bootloader kernel argumen <<
982 help <<
983 The command-line arguments provided <<
984 appended to the default kernel comma <<
985 <<
986 config CMDLINE_FORCE <<
987 bool "Always use the default kernel co <<
988 help <<
989 Always use the default kernel comman <<
990 loader passes other arguments to the <<
991 This is useful if you cannot or don' <<
992 command-line options your boot loade <<
993 <<
994 endchoice <<
995 <<
996 config EXTRA_TARGETS <<
997 string "Additional default image types <<
998 help <<
999 List additional targets to be built <<
1000 by spaces). This is useful for tar <<
1001 files in the .dts directory. <<
1002 325
1003 Targets in this list will be build !! 326 config SUN_PM
1004 target, or when the user does a 'ma <<
1005 'make zImage.initrd'. <<
1006 <<
1007 If unsure, leave blank <<
1008 <<
1009 config ARCH_WANTS_FREEZER_CONTROL <<
1010 def_bool y <<
1011 depends on ADB_PMU <<
1012 <<
1013 source "kernel/power/Kconfig" <<
1014 <<
1015 config PPC_MEM_KEYS <<
1016 prompt "PowerPC Memory Protection Key <<
1017 def_bool y <<
1018 depends on PPC_BOOK3S_64 <<
1019 depends on PPC_64S_HASH_MMU <<
1020 select ARCH_USES_HIGH_VMA_FLAGS <<
1021 select ARCH_HAS_PKEYS <<
1022 help <<
1023 Memory Protection Keys provides a m <<
1024 page-based protections, but without <<
1025 page tables when an application cha <<
1026 <<
1027 For details, see Documentation/core <<
1028 <<
1029 If unsure, say y. <<
1030 <<
1031 config ARCH_PKEY_BITS <<
1032 int <<
1033 default 5 <<
1034 <<
1035 config PPC_SECURE_BOOT <<
1036 prompt "Enable secure boot support" <<
1037 bool <<
1038 depends on PPC_POWERNV || PPC_PSERIES <<
1039 depends on IMA_ARCH_POLICY <<
1040 imply IMA_SECURE_AND_OR_TRUSTED_BOOT <<
1041 select PSERIES_PLPKS if PPC_PSERIES <<
1042 help <<
1043 Systems with firmware secure boot e <<
1044 policies to extend secure boot to t <<
1045 to enable OS secure boot on systems <<
1046 it. If in doubt say N. <<
1047 <<
1048 config PPC_SECVAR_SYSFS <<
1049 bool "Enable sysfs interface for POWE <<
1050 default y <<
1051 depends on PPC_SECURE_BOOT <<
1052 depends on SYSFS <<
1053 help <<
1054 POWER secure variables are managed <<
1055 These variables are exposed to user <<
1056 read/write operations on these vari <<
1057 secure boot enabled and want to exp <<
1058 <<
1059 endmenu <<
1060 <<
1061 config ISA_DMA_API <<
1062 bool 327 bool
1063 default PCI !! 328 default y if SPARC32
1064 <<
1065 menu "Bus options" <<
1066 <<
1067 config ISA <<
1068 bool "Support for ISA-bus hardware" <<
1069 depends on PPC_CHRP <<
1070 select PPC_I8259 <<
1071 help 329 help
1072 Find out whether you have ISA slots !! 330 Enable power management and CPU standby features on supported
1073 name of a bus system, i.e. the way !! 331 SPARC platforms.
1074 inside your box. If you have an Ap <<
1075 have an IBM RS/6000 or pSeries mach <<
1076 embedded board, consult your board <<
1077 332
1078 config GENERIC_ISA_DMA !! 333 config SPARC_LED
1079 bool !! 334 tristate "Sun4m LED driver"
1080 depends on ISA_DMA_API !! 335 depends on SPARC32
1081 default y <<
1082 <<
1083 config PPC_INDIRECT_PCI <<
1084 bool <<
1085 depends on PCI <<
1086 default y if 44x <<
1087 <<
1088 config SBUS <<
1089 bool <<
1090 <<
1091 config FSL_SOC <<
1092 bool <<
1093 <<
1094 config FSL_PCI <<
1095 bool <<
1096 select ARCH_HAS_DMA_SET_MASK <<
1097 select PPC_INDIRECT_PCI <<
1098 select PCI_QUIRKS <<
1099 <<
1100 config FSL_PMC <<
1101 bool <<
1102 default y <<
1103 depends on SUSPEND && (PPC_85xx || PP <<
1104 help 336 help
1105 Freescale MPC85xx/MPC86xx power man !! 337 This driver toggles the front-panel LED on sun4m systems
1106 (suspend/resume). For MPC83xx see p !! 338 in a user-specifiable manner. Its state can be probed
>> 339 by reading /proc/led and its blinking mode can be changed
>> 340 via writes to /proc/led
1107 341
1108 config PPC4xx_CPM !! 342 config SERIAL_CONSOLE
1109 bool 343 bool
>> 344 depends on SPARC32
1110 default y 345 default y
1111 depends on SUSPEND && 44x <<
1112 help 346 help
1113 PPC4xx Clock Power Management (CPM) !! 347 If you say Y here, it will be possible to use a serial port as the
1114 It also enables support for two dif !! 348 system console (the system console is the device which receives all
1115 and idle-doze). !! 349 kernel messages and warnings and which allows logins in single user
>> 350 mode). This could be useful if some terminal or printer is connected
>> 351 to that serial port.
1116 352
1117 config FSL_LBC !! 353 Even if you say Y here, the currently visible virtual console
1118 bool "Freescale Local Bus support" !! 354 (/dev/tty0) will still be used as the system console by default, but
1119 help !! 355 you can alter that using a kernel command line option such as
1120 Enables reporting of errors from th !! 356 "console=ttyS1". (Try "man bootparam" or see the documentation of
1121 controller. Also contains some com !! 357 your boot loader (silo) about how to pass options to the kernel at
1122 drivers for specific local bus peri !! 358 boot time.)
1123 359
1124 config FSL_GTM !! 360 If you don't have a graphics card installed and you say Y here, the
1125 bool !! 361 kernel will automatically use the first serial line, /dev/ttyS0, as
1126 depends on PPC_83xx || QUICC_ENGINE | !! 362 system console.
1127 help <<
1128 Freescale General-purpose Timers su <<
1129 <<
1130 config FSL_RIO <<
1131 bool "Freescale Embedded SRIO Control <<
1132 depends on RAPIDIO = y && HAVE_RAPIDI <<
1133 default "n" <<
1134 help <<
1135 Include support for RapidIO control <<
1136 processors (MPC8548, MPC8641, etc). <<
1137 <<
1138 endmenu <<
1139 <<
1140 config NONSTATIC_KERNEL <<
1141 bool <<
1142 363
1143 menu "Advanced setup" !! 364 If unsure, say N.
1144 depends on PPC32 <<
1145 365
1146 config ADVANCED_OPTIONS !! 366 config SPARC_LEON
1147 bool "Prompt for advanced kernel conf !! 367 bool "Sparc Leon processor family"
>> 368 depends on SPARC32
>> 369 select USB_EHCI_BIG_ENDIAN_MMIO
>> 370 select USB_EHCI_BIG_ENDIAN_DESC
>> 371 select USB_UHCI_BIG_ENDIAN_MMIO
>> 372 select USB_UHCI_BIG_ENDIAN_DESC
1148 help 373 help
1149 This option will enable prompting f !! 374 If you say Y here if you are running on a SPARC-LEON processor.
1150 configuration options. These optio !! 375 The LEON processor is a synthesizable VHDL model of the
1151 work if they are set incorrectly, b !! 376 SPARC-v8 standard. LEON is part of the GRLIB collection of
1152 aspects of kernel memory management !! 377 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 378 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 379 toolchain at www.gaisler.com.
1153 380
1154 Unless you know what you are doing, !! 381 if SPARC_LEON
>> 382 menu "U-Boot options"
1155 383
1156 comment "Default settings for advanced config !! 384 config UBOOT_LOAD_ADDR
1157 depends on !ADVANCED_OPTIONS !! 385 hex "uImage Load Address"
1158 !! 386 default 0x40004000
1159 config LOWMEM_SIZE_BOOL <<
1160 bool "Set maximum low memory" <<
1161 depends on ADVANCED_OPTIONS <<
1162 help 387 help
1163 This option allows you to set the m !! 388 U-Boot kernel load address, the address in physical address space
1164 will be used as "low memory", that !! 389 where u-boot will place the Linux kernel before booting it.
1165 access directly, without having to !! 390 This address is normally the base address of main memory + 0x4000.
1166 This can be useful in optimizing th <<
1167 memory. <<
1168 <<
1169 Say N here unless you know what you <<
1170 <<
1171 config LOWMEM_SIZE <<
1172 hex "Maximum low memory size (in byte <<
1173 default "0x30000000" <<
1174 391
1175 config LOWMEM_CAM_NUM_BOOL !! 392 config UBOOT_FLASH_ADDR
1176 bool "Set number of CAMs to use to ma !! 393 hex "uImage.o Load Address"
1177 depends on ADVANCED_OPTIONS && PPC_85 !! 394 default 0x00080000
1178 help 395 help
1179 This option allows you to set the m !! 396 Optional setting only affecting the uImage.o ELF-image used to
1180 will be used to map low memory. Th !! 397 download the uImage file to the target using a ELF-loader other than
1181 available and even more limited num !! 398 U-Boot. It may for example be used to download an uImage to FLASH with
1182 However, using more entries will al !! 399 the GRMON utility before even starting u-boot.
1183 can be useful in optimizing the lay <<
1184 <<
1185 Say N here unless you know what you <<
1186 <<
1187 config LOWMEM_CAM_NUM <<
1188 depends on PPC_85xx <<
1189 int "Number of CAMs to use to map low <<
1190 default 3 if !STRICT_KERNEL_RWX <<
1191 default 9 if DATA_SHIFT >= 24 <<
1192 default 12 if DATA_SHIFT >= 22 <<
1193 default 15 <<
1194 400
1195 config DYNAMIC_MEMSTART !! 401 config UBOOT_ENTRY_ADDR
1196 bool "Enable page aligned dynamic loa !! 402 hex "uImage Entry Address"
1197 depends on ADVANCED_OPTIONS && FLATME !! 403 default 0xf0004000
1198 select NONSTATIC_KERNEL <<
1199 help 404 help
1200 This option enables the kernel to b !! 405 Do not change this unless you know what you're doing. This is
1201 physical address. The kernel create !! 406 hardcoded by the SPARC32 and LEON port.
1202 the address where the kernel is loa <<
1203 the TLB page size of the mapping fo <<
1204 Please refer to the init code for f <<
1205 407
1206 DYNAMIC_MEMSTART is an easy way of !! 408 This is the virtual address u-boot jumps to when booting the Linux
1207 kernel image, where the only restri !! 409 Kernel.
1208 load address. When this option is e <<
1209 address CONFIG_PHYSICAL_START is ig <<
1210 410
1211 This option is overridden by CONFIG !! 411 endmenu
>> 412 endif
1212 413
1213 config PAGE_OFFSET_BOOL !! 414 endmenu
1214 bool "Set custom page offset address" <<
1215 depends on ADVANCED_OPTIONS <<
1216 help <<
1217 This option allows you to set the k <<
1218 the kernel will map low memory. Th <<
1219 the virtual memory layout of the sy <<
1220 415
1221 Say N here unless you know what you !! 416 menu "Bus options (PCI etc.)"
>> 417 config SBUS
>> 418 bool
>> 419 default y
1222 420
1223 config PAGE_OFFSET !! 421 config SBUSCHAR
1224 hex "Virtual address of memory base" !! 422 bool
1225 default "0xc0000000" !! 423 default y
1226 424
1227 config KERNEL_START_BOOL !! 425 config SUN_LDOMS
1228 bool "Set custom kernel base address" !! 426 bool "Sun Logical Domains support"
1229 depends on ADVANCED_OPTIONS !! 427 depends on SPARC64
1230 help 428 help
1231 This option allows you to set the k !! 429 Say Y here is you want to support virtual devices via
1232 the kernel will be loaded. Normall !! 430 Logical Domains.
1233 however there are times (like kdump <<
1234 to be the same. <<
1235 431
1236 Say N here unless you know what you !! 432 config PCIC_PCI
>> 433 bool
>> 434 depends on PCI && SPARC32 && !SPARC_LEON
>> 435 default y
1237 436
1238 config KERNEL_START !! 437 config LEON_PCI
1239 hex "Virtual address of kernel base" !! 438 bool
1240 default PAGE_OFFSET if PAGE_OFFSET_BO !! 439 depends on PCI && SPARC_LEON
1241 default "0xc2000000" if CRASH_DUMP && !! 440 default y
1242 default "0xc0000000" <<
1243 441
1244 config PHYSICAL_START_BOOL !! 442 config SPARC_GRPCI1
1245 bool "Set physical address where the !! 443 bool "GRPCI Host Bridge Support"
1246 depends on ADVANCED_OPTIONS && FLATME !! 444 depends on LEON_PCI
>> 445 default y
1247 help 446 help
1248 This gives the physical address whe !! 447 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
1249 !! 448 PCI host controller is typically found in GRLIB SPARC32/LEON
1250 Say N here unless you know what you !! 449 systems. The driver has one property (all_pci_errors) controlled
1251 !! 450 from the bootloader that makes the GRPCI to generate interrupts
1252 config PHYSICAL_START !! 451 on detected PCI Parity and System errors.
1253 hex "Physical address where the kerne <<
1254 default "0x02000000" if PPC_BOOK3S && <<
1255 default "0x00000000" <<
1256 452
1257 config PHYSICAL_ALIGN !! 453 config SPARC_GRPCI2
1258 hex !! 454 bool "GRPCI2 Host Bridge Support"
1259 default "0x04000000" if PPC_85xx !! 455 depends on LEON_PCI
>> 456 default y
1260 help 457 help
1261 This value puts the alignment restr !! 458 Say Y here to include the GRPCI2 Host Bridge Driver.
1262 where kernel is loaded and run from <<
1263 address which meets above alignment <<
1264 459
1265 config TASK_SIZE_BOOL !! 460 config SUN_OPENPROMFS
1266 bool "Set custom user task size" !! 461 tristate "Openprom tree appears in /proc/openprom"
1267 depends on ADVANCED_OPTIONS <<
1268 help 462 help
1269 This option allows you to set the a !! 463 If you say Y, the OpenPROM device tree will be available as a
1270 allocated to user tasks. This can !! 464 virtual file system, which you can mount to /proc/openprom by "mount
1271 virtual memory layout of the system !! 465 -t openpromfs none /proc/openprom".
1272 466
1273 Say N here unless you know what you !! 467 To compile the /proc/openprom support as a module, choose M here: the
>> 468 module will be called openpromfs.
1274 469
1275 config TASK_SIZE !! 470 Only choose N if you know in advance that you will not need to modify
1276 hex "Size of user task space" if TASK !! 471 OpenPROM settings on the running system.
1277 default "0x80000000" if PPC_8xx <<
1278 default "0xb0000000" if PPC_BOOK3S_32 <<
1279 default "0xc0000000" <<
1280 472
1281 config MODULES_SIZE_BOOL !! 473 # Makefile helpers
1282 bool "Set custom size for modules/exe !! 474 config SPARC64_PCI
1283 depends on EXECMEM && ADVANCED_OPTION !! 475 bool
1284 help !! 476 default y
1285 This option allows you to set the s !! 477 depends on SPARC64 && PCI
1286 space dedicated for modules/execmem <<
1287 For the time being it is only for 8 <<
1288 platform share it with vmalloc spac <<
1289 <<
1290 Say N here unless you know what you <<
1291 478
1292 config MODULES_SIZE !! 479 config SPARC64_PCI_MSI
1293 int "Size of modules/execmem area (In !! 480 bool
1294 range 1 256 if EXECMEM !! 481 default y
1295 default 64 if EXECMEM && PPC_BOOK3S_3 !! 482 depends on SPARC64_PCI && PCI_MSI
1296 default 32 if EXECMEM && PPC_8xx <<
1297 default 0 <<
1298 483
1299 endmenu 484 endmenu
1300 485
1301 if PPC64 !! 486 config COMPAT
1302 # This value must have zeroes in the bottom 6 <<
1303 config PAGE_OFFSET <<
1304 hex <<
1305 default "0xc000000000000000" <<
1306 config KERNEL_START <<
1307 hex <<
1308 default "0xc000000000000000" <<
1309 config PHYSICAL_START <<
1310 hex <<
1311 default "0x00000000" <<
1312 endif <<
1313 <<
1314 config PPC_LIB_RHEAP <<
1315 bool 487 bool
>> 488 depends on SPARC64
>> 489 default y
>> 490 select HAVE_UID16
>> 491 select ARCH_WANT_OLD_COMPAT_IPC
>> 492 select COMPAT_OLD_SIGACTION
1316 493
1317 source "arch/powerpc/kvm/Kconfig" !! 494 source "drivers/sbus/char/Kconfig"
1318 <<
1319 source "kernel/livepatch/Kconfig" <<
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