Commit | Line | Data |
---|---|---|
b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
a0ae9c7c | 2 | source "arch/powerpc/platforms/Kconfig.cputype" |
17e638bc | 3 | |
5017b459 NP |
4 | config CC_HAS_ELFV2 |
5 | def_bool PPC64 && $(cc-option, -mabi=elfv2) | |
6 | ||
dc5dac74 NP |
7 | config CC_HAS_PREFIXED |
8 | def_bool PPC64 && $(cc-option, -mcpu=power10 -mprefixed) | |
9 | ||
7e3a68be | 10 | config CC_HAS_PCREL |
169f8997 NP |
11 | # Clang has a bug (https://github.com/llvm/llvm-project/issues/62372) |
12 | # where pcrel code is not generated if -msoft-float, -mno-altivec, or | |
13 | # -mno-vsx options are also given. Without these options, fp/vec | |
14 | # instructions are generated from regular kernel code. So Clang can't | |
15 | # do pcrel yet. | |
16 | def_bool PPC64 && CC_IS_GCC && $(cc-option, -mcpu=power10 -mpcrel) | |
7e3a68be | 17 | |
234a71a7 | 18 | config 32BIT |
19 | bool | |
20 | default y if PPC32 | |
21 | ||
14cf11af PM |
22 | config 64BIT |
23 | bool | |
24 | default y if PPC64 | |
25 | ||
a4520b25 CL |
26 | config LIVEPATCH_64 |
27 | def_bool PPC64 | |
cea9d62b | 28 | depends on LIVEPATCH |
a4520b25 | 29 | |
14cf11af PM |
30 | config MMU |
31 | bool | |
32 | default y | |
33 | ||
9fea59bd ME |
34 | config ARCH_MMAP_RND_BITS_MAX |
35 | # On Book3S 64, the default virtual address space for 64-bit processes | |
36 | # is 2^47 (128TB). As a maximum, allow randomisation to consume up to | |
37 | # 32T of address space (2^45), which should ensure a reasonable gap | |
38 | # between bottom-up and top-down allocations for applications that | |
39 | # consume "normal" amounts of address space. Book3S 64 only supports 64K | |
40 | # and 4K page sizes. | |
41 | default 29 if PPC_BOOK3S_64 && PPC_64K_PAGES # 29 = 45 (32T) - 16 (64K) | |
42 | default 33 if PPC_BOOK3S_64 # 33 = 45 (32T) - 12 (4K) | |
43 | # | |
44 | # On all other 64-bit platforms (currently only Book3E), the virtual | |
45 | # address space is 2^46 (64TB). Allow randomisation to consume up to 16T | |
46 | # of address space (2^44). Only 4K page sizes are supported. | |
47 | default 32 if 64BIT # 32 = 44 (16T) - 12 (4K) | |
48 | # | |
49 | # For 32-bit, use the compat values, as they're the same. | |
50 | default ARCH_MMAP_RND_COMPAT_BITS_MAX | |
51 | ||
52 | config ARCH_MMAP_RND_BITS_MIN | |
53 | # Allow randomisation to consume up to 1GB of address space (2^30). | |
54 | default 14 if 64BIT && PPC_64K_PAGES # 14 = 30 (1GB) - 16 (64K) | |
55 | default 18 if 64BIT # 18 = 30 (1GB) - 12 (4K) | |
56 | # | |
57 | # For 32-bit, use the compat values, as they're the same. | |
58 | default ARCH_MMAP_RND_COMPAT_BITS_MIN | |
59 | ||
60 | config ARCH_MMAP_RND_COMPAT_BITS_MAX | |
61 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
62 | # Allow randomisation to consume up to 512MB of address space (2^29). | |
63 | default 11 if PPC_256K_PAGES # 11 = 29 (512MB) - 18 (256K) | |
64 | default 13 if PPC_64K_PAGES # 13 = 29 (512MB) - 16 (64K) | |
4f44e8ae | 65 | default 15 if PPC_16K_PAGES # 15 = 29 (512MB) - 14 (16K) |
9fea59bd ME |
66 | default 17 # 17 = 29 (512MB) - 12 (4K) |
67 | ||
68 | config ARCH_MMAP_RND_COMPAT_BITS_MIN | |
69 | # Total virtual address space for 32-bit processes is 2^31 (2GB). | |
70 | # Allow randomisation to consume up to 8MB of address space (2^23). | |
71 | default 5 if PPC_256K_PAGES # 5 = 23 (8MB) - 18 (256K) | |
72 | default 7 if PPC_64K_PAGES # 7 = 23 (8MB) - 16 (64K) | |
73 | default 9 if PPC_16K_PAGES # 9 = 23 (8MB) - 14 (16K) | |
74 | default 11 # 11 = 23 (8MB) - 12 (4K) | |
75 | ||
551b81f2 ME |
76 | config NR_IRQS |
77 | int "Number of virtual interrupt numbers" | |
7b3b3de3 | 78 | range 32 1048576 |
551b81f2 ME |
79 | default "512" |
80 | help | |
81 | This defines the number of virtual interrupt numbers the kernel | |
82 | can manage. Virtual interrupt numbers are what you see in | |
83 | /proc/interrupts. If you configure your system to have too few, | |
84 | drivers will fail to load or worse - handle with care. | |
85 | ||
ddd703ca NP |
86 | config NMI_IPI |
87 | bool | |
2104180a | 88 | depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR) |
ddd703ca NP |
89 | default y |
90 | ||
75eb767e NP |
91 | config PPC_WATCHDOG |
92 | bool | |
93 | depends on HARDLOCKUP_DETECTOR | |
94 | depends on HAVE_HARDLOCKUP_DETECTOR_ARCH | |
95 | default y | |
96 | help | |
97 | This is a placeholder when the powerpc hardlockup detector | |
98 | watchdog is selected (arch/powerpc/kernel/watchdog.c). It is | |
f8a4b277 | 99 | selected via the generic lockup detector menu which is why we |
75eb767e NP |
100 | have no standalone config option for it here. |
101 | ||
fd3e0bbc CH |
102 | config STACKTRACE_SUPPORT |
103 | bool | |
104 | default y | |
105 | ||
945feb17 BH |
106 | config LOCKDEP_SUPPORT |
107 | bool | |
108 | default y | |
109 | ||
95c354fe NP |
110 | config GENERIC_LOCKBREAK |
111 | bool | |
112 | default y | |
9f61521c | 113 | depends on SMP && PREEMPTION && !PPC_QUEUED_SPINLOCKS |
95c354fe | 114 | |
e779b2f9 AM |
115 | config GENERIC_HWEIGHT |
116 | bool | |
117 | default y | |
118 | ||
14cf11af PM |
119 | config PPC |
120 | bool | |
121 | default y | |
a7d2475a ME |
122 | # |
123 | # Please keep this list sorted alphabetically. | |
124 | # | |
942fa985 | 125 | select ARCH_32BIT_OFF_T if PPC32 |
41b7a347 | 126 | select ARCH_DISABLE_KASAN_INLINE if PPC_RADIX_MMU |
c00a60d6 | 127 | select ARCH_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE |
91024b3c AK |
128 | select ARCH_ENABLE_MEMORY_HOTPLUG |
129 | select ARCH_ENABLE_MEMORY_HOTREMOVE | |
c6b05f4e | 130 | select ARCH_HAS_COPY_MC if PPC64 |
2792d84e | 131 | select ARCH_HAS_CURRENT_STACK_POINTER |
6bf752da | 132 | select ARCH_HAS_DEBUG_VIRTUAL |
937c49d1 | 133 | select ARCH_HAS_DEBUG_VM_PGTABLE |
e0847283 | 134 | select ARCH_HAS_DEBUG_WX if STRICT_KERNEL_RWX |
a7d2475a | 135 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
c6b05f4e | 136 | select ARCH_HAS_DMA_MAP_DIRECT if PPC_PSERIES |
6974f0c4 | 137 | select ARCH_HAS_FORTIFY_SOURCE |
a7d2475a | 138 | select ARCH_HAS_GCOV_PROFILE_ALL |
cbd34da7 | 139 | select ARCH_HAS_HUGEPD if HUGETLB_PAGE |
c6b05f4e CL |
140 | select ARCH_HAS_KCOV |
141 | select ARCH_HAS_MEMBARRIER_CALLBACKS | |
142 | select ARCH_HAS_MEMBARRIER_SYNC_CORE | |
387e220a | 143 | select ARCH_HAS_MEMREMAP_COMPAT_ALIGN if PPC_64S_HASH_MMU |
420af155 | 144 | select ARCH_HAS_MMIOWB if PPC64 |
c6b05f4e | 145 | select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE |
ea8c64ac | 146 | select ARCH_HAS_PHYS_TO_DMA |
461cef2a | 147 | select ARCH_HAS_PMEM_API |
17596731 | 148 | select ARCH_HAS_PTE_DEVMAP if PPC_BOOK3S_64 |
3010a5ea | 149 | select ARCH_HAS_PTE_SPECIAL |
b4645ffc | 150 | select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE && PPC_BOOK3S_64 |
1f9ad21c | 151 | select ARCH_HAS_SET_MEMORY |
68b44f94 | 152 | select ARCH_HAS_STRICT_KERNEL_RWX if (PPC_BOOK3S || PPC_8xx || 40x) && !HIBERNATION |
dfc3095c | 153 | select ARCH_HAS_STRICT_KERNEL_RWX if PPC_85xx && !HIBERNATION && !RANDOMIZE_BASE |
0670010f | 154 | select ARCH_HAS_STRICT_MODULE_RWX if ARCH_HAS_STRICT_KERNEL_RWX |
7e92e01b | 155 | select ARCH_HAS_SYSCALL_WRAPPER if !SPU_BASE && !COMPAT |
a7d2475a | 156 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
461cef2a | 157 | select ARCH_HAS_UACCESS_FLUSHCACHE |
a7d2475a ME |
158 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
159 | select ARCH_HAVE_NMI_SAFE_CMPXCHG | |
350e88ba | 160 | select ARCH_KEEP_MEMBLOCK |
b7e7c37b | 161 | select ARCH_MIGHT_HAVE_PC_PARPORT |
c74e6d3d | 162 | select ARCH_MIGHT_HAVE_PC_SERIO |
4ec591e5 | 163 | select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX |
fdacae8a | 164 | select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT |
02a771c9 | 165 | select ARCH_SPLIT_ARG64 if PPC32 |
a1cdef04 | 166 | select ARCH_STACKWALK |
a7d2475a | 167 | select ARCH_SUPPORTS_ATOMIC_RMW |
68b44f94 | 168 | select ARCH_SUPPORTS_DEBUG_PAGEALLOC if PPC_BOOK3S || PPC_8xx || 40x |
a7d2475a ME |
169 | select ARCH_USE_BUILTIN_BSWAP |
170 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 | |
dce44566 | 171 | select ARCH_USE_MEMTEST |
aa65ff6b | 172 | select ARCH_USE_QUEUED_RWLOCKS if PPC_QUEUED_SPINLOCKS |
e0fe568e | 173 | select ARCH_WANT_DEFAULT_BPF_JIT |
36e5f9ee | 174 | select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT |
a7d2475a | 175 | select ARCH_WANT_IPC_PARSE_VERSION |
66acd460 | 176 | select ARCH_WANT_IRQS_OFF_ACTIVATE_MM |
59612b24 | 177 | select ARCH_WANT_LD_ORPHAN_WARN |
eeaec780 | 178 | select ARCH_WANTS_MODULES_DATA_IN_VMALLOC if PPC_BOOK3S_32 || PPC_8xx |
77e58496 | 179 | select ARCH_WEAK_RELEASE_ACQUIRE |
d812c0e1 | 180 | select BINFMT_ELF |
10916706 | 181 | select BUILDTIME_TABLE_SORT |
a7d2475a | 182 | select CLONE_BACKWARDS |
2eafc474 | 183 | select CPUMASK_OFFSTACK if NR_CPUS >= 8192 |
a7d2475a | 184 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
f1565c24 | 185 | select DMA_OPS_BYPASS if PPC64 |
c6b05f4e | 186 | select DMA_OPS if PPC64 |
0c0c5230 | 187 | select DYNAMIC_FTRACE if FUNCTION_TRACER |
a7d2475a ME |
188 | select EDAC_ATOMIC_SCRUB |
189 | select EDAC_SUPPORT | |
190 | select GENERIC_ATOMIC64 if PPC32 | |
a7d2475a ME |
191 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
192 | select GENERIC_CMOS_UPDATE | |
193 | select GENERIC_CPU_AUTOPROBE | |
179ab1cb | 194 | select GENERIC_CPU_VULNERABILITIES if PPC_BARRIER_NOSPEC |
265c3491 | 195 | select GENERIC_EARLY_IOREMAP |
74205b3f | 196 | select GENERIC_GETTIMEOFDAY |
a7d2475a ME |
197 | select GENERIC_IRQ_SHOW |
198 | select GENERIC_IRQ_SHOW_LEVEL | |
eb01d42a | 199 | select GENERIC_PCI_IOMAP if PCI |
e0847283 | 200 | select GENERIC_PTDUMP |
a7d2475a | 201 | select GENERIC_SMP_IDLE_THREAD |
d4cfb113 | 202 | select GENERIC_TIME_VSYSCALL |
74205b3f | 203 | select GENERIC_VDSO_TIME_NS |
fcbfe812 | 204 | select HAS_IOPORT if PCI |
a7d2475a | 205 | select HAVE_ARCH_AUDITSYSCALL |
8abddd96 | 206 | select HAVE_ARCH_HUGE_VMALLOC if HAVE_ARCH_HUGE_VMAP |
a6a8f7c4 | 207 | select HAVE_ARCH_HUGE_VMAP if PPC_RADIX_MMU || PPC_8xx |
a7d2475a | 208 | select HAVE_ARCH_JUMP_LABEL |
b0b3b2c7 | 209 | select HAVE_ARCH_JUMP_LABEL_RELATIVE |
888468ce | 210 | select HAVE_ARCH_KASAN if PPC32 && PPC_PAGE_SHIFT <= 14 |
41b7a347 | 211 | select HAVE_ARCH_KASAN if PPC_RADIX_MMU |
c7b9ed7c | 212 | select HAVE_ARCH_KASAN if PPC_BOOK3E_64 |
41b7a347 | 213 | select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN |
6f0926c0 | 214 | select HAVE_ARCH_KCSAN if PPC_BOOK3S_64 |
a5edf981 | 215 | select HAVE_ARCH_KFENCE if ARCH_SUPPORTS_DEBUG_PAGEALLOC |
f4a0318f | 216 | select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET |
ac9c8901 | 217 | select HAVE_ARCH_WITHIN_STACK_FRAMES |
c6b05f4e | 218 | select HAVE_ARCH_KGDB |
9fea59bd ME |
219 | select HAVE_ARCH_MMAP_RND_BITS |
220 | select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT | |
20e07af7 | 221 | select HAVE_ARCH_NVRAM_OPS |
a7d2475a ME |
222 | select HAVE_ARCH_SECCOMP_FILTER |
223 | select HAVE_ARCH_TRACEHOOK | |
2ff2b7ec | 224 | select HAVE_ASM_MODVERSIONS |
5c4b710a | 225 | select HAVE_CONTEXT_TRACKING_USER |
c6b05f4e | 226 | select HAVE_C_RECORDMCOUNT |
a7d2475a ME |
227 | select HAVE_DEBUG_KMEMLEAK |
228 | select HAVE_DEBUG_STACKOVERFLOW | |
2b79d696 | 229 | select HAVE_DYNAMIC_FTRACE |
40b035ef | 230 | select HAVE_DYNAMIC_FTRACE_WITH_ARGS if MPROFILE_KERNEL || PPC32 |
7dfbfb87 | 231 | select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL || PPC32 |
51c66ad8 | 232 | select HAVE_EBPF_JIT |
ecf8f364 | 233 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
67a929e0 | 234 | select HAVE_FAST_GUP |
a7d2475a | 235 | select HAVE_FTRACE_MCOUNT_RECORD |
5b89492c | 236 | select HAVE_FUNCTION_DESCRIPTORS if PPC64_ELF_ABI_V1 |
7cd01b08 | 237 | select HAVE_FUNCTION_ERROR_INJECTION |
60ce8f72 | 238 | select HAVE_FUNCTION_GRAPH_TRACER |
a7d2475a | 239 | select HAVE_FUNCTION_TRACER |
8034c2fb | 240 | select HAVE_GCC_PLUGINS if GCC_VERSION >= 50200 # plugin support on gcc <= 5.1 is buggy on PPC |
ab037dd8 | 241 | select HAVE_GENERIC_VDSO |
c6b05f4e CL |
242 | select HAVE_HARDLOCKUP_DETECTOR_ARCH if PPC_BOOK3S_64 && SMP |
243 | select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH | |
a7d2475a | 244 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx) |
a1f242ff | 245 | select HAVE_IOREMAP_PROT |
c6b05f4e | 246 | select HAVE_IRQ_TIME_ACCOUNTING |
a7d2475a | 247 | select HAVE_KERNEL_GZIP |
1cc9a21b | 248 | select HAVE_KERNEL_LZMA if DEFAULT_UIMAGE |
264bffad | 249 | select HAVE_KERNEL_LZO if DEFAULT_UIMAGE |
423bfc69 | 250 | select HAVE_KERNEL_XZ if PPC_BOOK3S || 44x |
3f550096 | 251 | select HAVE_KPROBES |
ead514d5 | 252 | select HAVE_KPROBES_ON_FTRACE |
9edddaa2 | 253 | select HAVE_KRETPROBES |
f8b2336f | 254 | select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if HAVE_OBJTOOL_MCOUNT |
a4520b25 | 255 | select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS |
a7d2475a | 256 | select HAVE_MOD_ARCH_SPECIFIC |
2104180a | 257 | select HAVE_NMI if PERF_EVENTS || (PPC64 && PPC_BOOK3S) |
eacf4c02 | 258 | select HAVE_OPTPROBES |
e52ec98c | 259 | select HAVE_OBJTOOL if PPC32 || MPROFILE_KERNEL |
c984aef8 | 260 | select HAVE_OBJTOOL_MCOUNT if HAVE_OBJTOOL |
cdd6c482 | 261 | select HAVE_PERF_EVENTS |
a7d2475a | 262 | select HAVE_PERF_EVENTS_NMI if PPC64 |
ed4a4ef8 | 263 | select HAVE_PERF_REGS |
17ed7c38 | 264 | select HAVE_PERF_USER_STACK_DUMP |
359e4284 | 265 | select HAVE_REGS_AND_STACK_ACCESS_API |
accdd093 | 266 | select HAVE_RELIABLE_STACKTRACE |
c6b05f4e | 267 | select HAVE_RSEQ |
7ecd19cf | 268 | select HAVE_SETUP_PER_CPU_AREA if PPC64 |
cd1a41ce | 269 | select HAVE_SOFTIRQ_ON_OWN_STACK |
c6b05f4e CL |
270 | select HAVE_STACKPROTECTOR if PPC32 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r2) |
271 | select HAVE_STACKPROTECTOR if PPC64 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r13) | |
5c810ced | 272 | select HAVE_STATIC_CALL if PPC32 |
a7d2475a ME |
273 | select HAVE_SYSCALL_TRACEPOINTS |
274 | select HAVE_VIRT_CPU_ACCOUNTING | |
01f13550 | 275 | select HAVE_VIRT_CPU_ACCOUNTING_GEN |
f96271ce | 276 | select HUGETLB_PAGE_SIZE_VARIABLE if PPC_BOOK3S_64 && HUGETLB_PAGE |
a4ce5a48 | 277 | select IOMMU_HELPER if PPC64 |
cc79ca69 | 278 | select IRQ_DOMAIN |
e8d2c473 | 279 | select IRQ_FORCED_THREADING |
c7b9ed7c | 280 | select KASAN_VMALLOC if KASAN && MODULES |
c6b05f4e CL |
281 | select MMU_GATHER_PAGE_SIZE |
282 | select MMU_GATHER_RCU_TABLE_FREE | |
1e9fdf21 | 283 | select MMU_GATHER_MERGE_VMAS |
77f68ebe | 284 | select MMU_LAZY_TLB_SHOOTDOWN if PPC_BOOK3S_64 |
786d35d4 | 285 | select MODULES_USE_ELF_RELA |
06832fc0 | 286 | select NEED_DMA_MAP_STATE if PPC64 || NOT_COHERENT_CACHE |
7ecd19cf KW |
287 | select NEED_PER_CPU_EMBED_FIRST_CHUNK if PPC64 |
288 | select NEED_PER_CPU_PAGE_FIRST_CHUNK if PPC64 | |
86596f0a | 289 | select NEED_SG_DMA_LENGTH |
a7d2475a ME |
290 | select OF |
291 | select OF_EARLY_FLATTREE | |
a7d2475a ME |
292 | select OLD_SIGACTION if PPC32 |
293 | select OLD_SIGSUSPEND | |
2eac9c2d | 294 | select PCI_DOMAINS if PCI |
981aa1d3 | 295 | select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
20f1b79d | 296 | select PCI_SYSCALL if PCI |
a278e7ea | 297 | select PPC_DAWR if PPC64 |
6e8cef38 | 298 | select RTC_LIB |
a7d2475a | 299 | select SPARSE_IRQ |
c35717c7 | 300 | select STRICT_KERNEL_RWX if STRICT_MODULE_RWX |
a7d2475a | 301 | select SYSCTL_EXCEPTION_TRACE |
ed1cd6de | 302 | select THREAD_INFO_IN_TASK |
4aae683f | 303 | select TRACE_IRQFLAGS_SUPPORT |
a7d2475a ME |
304 | # |
305 | # Please keep this list sorted alphabetically. | |
306 | # | |
14cf11af | 307 | |
179ab1cb | 308 | config PPC_BARRIER_NOSPEC |
4f44e8ae EWI |
309 | bool |
310 | default y | |
3e731858 | 311 | depends on PPC_BOOK3S_64 || PPC_E500 |
179ab1cb | 312 | |
b86cf14f NP |
313 | config PPC_HAS_LBARX_LHARX |
314 | bool | |
315 | ||
14cf11af PM |
316 | config EARLY_PRINTK |
317 | bool | |
51d3082f | 318 | default y |
14cf11af | 319 | |
b71d47c1 JB |
320 | config PANIC_TIMEOUT |
321 | int | |
322 | default 180 | |
323 | ||
14cf11af | 324 | config COMPAT |
6e944aed MS |
325 | bool "Enable support for 32bit binaries" |
326 | depends on PPC64 | |
6fcb5741 | 327 | depends on !CC_IS_CLANG || CLANG_VERSION >= 120000 |
6e944aed | 328 | default y if !CPU_LITTLE_ENDIAN |
48b25c43 | 329 | select ARCH_WANT_OLD_COMPAT_IPC |
09a4d5d0 | 330 | select COMPAT_OLD_SIGACTION |
14cf11af | 331 | |
ae1e9130 | 332 | config SCHED_OMIT_FRAME_POINTER |
14cf11af PM |
333 | bool |
334 | default y | |
335 | ||
336 | config ARCH_MAY_HAVE_PC_FDC | |
337 | bool | |
3484a31f | 338 | default PCI |
14cf11af | 339 | |
08264cbc KG |
340 | config PPC_UDBG_16550 |
341 | bool | |
08264cbc | 342 | |
08264cbc KG |
343 | config GENERIC_TBSYNC |
344 | bool | |
345 | default y if PPC32 && SMP | |
08264cbc | 346 | |
b7472e17 ME |
347 | config AUDIT_ARCH |
348 | bool | |
349 | default y | |
350 | ||
73c9ceab JF |
351 | config GENERIC_BUG |
352 | bool | |
353 | default y | |
354 | depends on BUG | |
355 | ||
1baa1f70 JN |
356 | config GENERIC_BUG_RELATIVE_POINTERS |
357 | def_bool y | |
358 | depends on GENERIC_BUG | |
359 | ||
b3028878 | 360 | config SYS_SUPPORTS_APM_EMULATION |
58da10bb | 361 | default y if PMAC_APM_EMU |
b3028878 JB |
362 | bool |
363 | ||
6c5b59b9 DG |
364 | config EPAPR_BOOT |
365 | bool | |
366 | help | |
367 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | |
6c5b59b9 | 368 | |
f4fc4a5b KG |
369 | config DEFAULT_UIMAGE |
370 | bool | |
371 | help | |
372 | Used to allow a board to specify it wants a uImage built by default | |
f4fc4a5b | 373 | |
801e4062 JB |
374 | config ARCH_HIBERNATION_POSSIBLE |
375 | bool | |
543b9fd3 JB |
376 | default y |
377 | ||
f4cb5700 JB |
378 | config ARCH_SUSPEND_POSSIBLE |
379 | def_bool y | |
4ffd6952 | 380 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
d0832a75 ZC |
381 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
382 | || 44x || 40x | |
f4cb5700 | 383 | |
9ca12ac0 NP |
384 | config ARCH_SUSPEND_NONZERO_CPU |
385 | def_bool y | |
386 | depends on PPC_POWERNV || PPC_PSERIES | |
387 | ||
ac790d09 AK |
388 | config ARCH_HAS_ADD_PAGES |
389 | def_bool y | |
390 | depends on ARCH_ENABLE_MEMORY_HOTPLUG | |
391 | ||
4c75a6f4 BH |
392 | config PPC_DCR_NATIVE |
393 | bool | |
4c75a6f4 BH |
394 | |
395 | config PPC_DCR_MMIO | |
396 | bool | |
4c75a6f4 BH |
397 | |
398 | config PPC_DCR | |
399 | bool | |
400 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
401 | default y | |
402 | ||
5d2eb73a PR |
403 | config PPC_PCI_OF_BUS_MAP |
404 | bool "Use pci_to_OF_bus_map (deprecated)" | |
405 | depends on PPC32 | |
406 | depends on PPC_PMAC || PPC_CHRP | |
407 | help | |
408 | This option uses pci_to_OF_bus_map to map OF nodes to PCI devices, which | |
409 | restricts the system to only having 256 PCI buses. On CHRP it also causes | |
410 | the "pci-OF-bus-map" property to be created in the device tree. | |
411 | ||
412 | If unsure, say "N". | |
413 | ||
56635681 PR |
414 | config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT |
415 | depends on PPC32 | |
5d2eb73a | 416 | depends on !PPC_PCI_OF_BUS_MAP |
56635681 | 417 | bool "Assign PCI bus numbers from zero individually for each PCI domain" |
34557b75 | 418 | default y |
56635681 PR |
419 | help |
420 | By default on PPC32 were PCI bus numbers unique across all PCI domains. | |
421 | So system could have only 256 PCI buses independently of available | |
422 | PCI domains. When this option is enabled then PCI bus numbers are | |
423 | PCI domain dependent and each PCI controller on own domain can have | |
424 | 256 PCI buses, like it is on other Linux architectures. | |
425 | ||
4c9d2800 BH |
426 | config PPC_OF_PLATFORM_PCI |
427 | bool | |
373a6da1 | 428 | depends on PCI |
4c9d2800 | 429 | depends on PPC64 # not supported on 32 bits yet |
4c9d2800 | 430 | |
8b7b80b9 AM |
431 | config ARCH_SUPPORTS_UPROBES |
432 | def_bool y | |
433 | ||
172ae2e7 DK |
434 | config PPC_ADV_DEBUG_REGS |
435 | bool | |
436 | depends on 40x || BOOKE | |
437 | default y | |
438 | ||
439 | config PPC_ADV_DEBUG_IACS | |
440 | int | |
441 | depends on PPC_ADV_DEBUG_REGS | |
442 | default 4 if 44x | |
443 | default 2 | |
444 | ||
445 | config PPC_ADV_DEBUG_DACS | |
446 | int | |
447 | depends on PPC_ADV_DEBUG_REGS | |
448 | default 2 | |
449 | ||
450 | config PPC_ADV_DEBUG_DVCS | |
451 | int | |
452 | depends on PPC_ADV_DEBUG_REGS | |
453 | default 2 if 44x | |
454 | default 0 | |
455 | ||
456 | config PPC_ADV_DEBUG_DAC_RANGE | |
457 | bool | |
458 | depends on PPC_ADV_DEBUG_REGS && 44x | |
459 | default y | |
460 | ||
a278e7ea MN |
461 | config PPC_DAWR |
462 | bool | |
463 | ||
06ef42a1 KS |
464 | config PGTABLE_LEVELS |
465 | int | |
466 | default 2 if !PPC64 | |
06ef42a1 KS |
467 | default 4 |
468 | ||
a2d2e1ec | 469 | source "arch/powerpc/sysdev/Kconfig" |
4330f5da | 470 | source "arch/powerpc/platforms/Kconfig" |
14cf11af | 471 | |
14cf11af PM |
472 | menu "Kernel options" |
473 | ||
474 | config HIGHMEM | |
475 | bool "High memory support" | |
476 | depends on PPC32 | |
47da42b2 | 477 | select KMAP_LOCAL |
14cf11af | 478 | |
8636a1f9 | 479 | source "kernel/Kconfig.hz" |
14cf11af | 480 | |
14cf11af PM |
481 | config MATH_EMULATION |
482 | bool "Math emulation" | |
53d143fe | 483 | depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE || PPC_MICROWATT |
b6254ced | 484 | select PPC_FPU_REGS |
4f44e8ae | 485 | help |
14cf11af PM |
486 | Some PowerPC chips designed for embedded applications do not have |
487 | a floating-point unit and therefore do not implement the | |
488 | floating-point instructions in the PowerPC instruction set. If you | |
489 | say Y here, the kernel will include code to emulate a floating-point | |
490 | unit, which will allow programs that use floating-point | |
491 | instructions to run. | |
492 | ||
4e63f8ed BH |
493 | This is also useful to emulate missing (optional) instructions |
494 | such as fsqrt on cores that do have an FPU but do not implement | |
495 | them (such as Freescale BookE). | |
496 | ||
e05c0e81 KH |
497 | choice |
498 | prompt "Math emulation options" | |
499 | default MATH_EMULATION_FULL | |
500 | depends on MATH_EMULATION | |
501 | ||
cea9d62b | 502 | config MATH_EMULATION_FULL |
e05c0e81 | 503 | bool "Emulate all the floating point instructions" |
4f44e8ae | 504 | help |
e05c0e81 KH |
505 | Select this option will enable the kernel to support to emulate |
506 | all the floating point instructions. If your SoC doesn't have | |
507 | a FPU, you should select this. | |
508 | ||
509 | config MATH_EMULATION_HW_UNIMPLEMENTED | |
510 | bool "Just emulate the FPU unimplemented instructions" | |
4f44e8ae | 511 | help |
e05c0e81 KH |
512 | Select this if you know there does have a hardware FPU on your |
513 | SoC, but some floating point instructions are not implemented by that. | |
514 | ||
515 | endchoice | |
516 | ||
3d72bbc4 | 517 | config PPC_TRANSACTIONAL_MEM |
4f44e8ae EWI |
518 | bool "Transactional Memory support for POWERPC" |
519 | depends on PPC_BOOK3S_64 | |
520 | depends on SMP | |
521 | select ALTIVEC | |
522 | select VSX | |
523 | help | |
524 | Support user-mode Transactional Memory on POWERPC. | |
3d72bbc4 | 525 | |
013a53f2 AK |
526 | config PPC_UV |
527 | bool "Ultravisor support" | |
528 | depends on KVM_BOOK3S_HV_POSSIBLE | |
a2db55dd | 529 | depends on DEVICE_PRIVATE |
013a53f2 AK |
530 | default n |
531 | help | |
532 | This option paravirtualizes the kernel to run in POWER platforms that | |
533 | supports the Protected Execution Facility (PEF). On such platforms, | |
534 | the ultravisor firmware runs at a privilege level above the | |
535 | hypervisor. | |
536 | ||
537 | If unsure, say "N". | |
538 | ||
951eedeb NP |
539 | config LD_HEAD_STUB_CATCH |
540 | bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT | |
541 | depends on PPC64 | |
951eedeb NP |
542 | help |
543 | Very large kernels can cause linker branch stubs to be generated by | |
544 | code in head_64.S, which moves the head text sections out of their | |
545 | specified location. This option can work around the problem. | |
546 | ||
547 | If unsure, say "N". | |
548 | ||
8c50b72a | 549 | config MPROFILE_KERNEL |
57b3ed94 | 550 | depends on PPC64 && CPU_LITTLE_ENDIAN && FUNCTION_TRACER |
abba7597 | 551 | def_bool $(success,$(srctree)/arch/powerpc/tools/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__) |
8c50b72a | 552 | |
14cf11af PM |
553 | config HOTPLUG_CPU |
554 | bool "Support for enabling/disabling CPUs" | |
40b31360 | 555 | depends on SMP && (PPC_PSERIES || \ |
76be4414 | 556 | PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE) |
4f44e8ae | 557 | help |
14cf11af PM |
558 | Say Y here to be able to disable and re-enable individual |
559 | CPUs at runtime on SMP machines. | |
560 | ||
561 | Say N if you are unsure. | |
562 | ||
0e23347f RM |
563 | config INTERRUPT_SANITIZE_REGISTERS |
564 | bool "Clear gprs on interrupt arrival" | |
565 | depends on PPC64 && ARCH_HAS_SYSCALL_WRAPPER | |
7cd882df | 566 | default PPC_BOOK3E_64 || PPC_PSERIES || PPC_POWERNV |
0e23347f RM |
567 | help |
568 | Reduce the influence of user register state on interrupt handlers and | |
569 | syscalls through clearing user state from registers before handling | |
570 | the exception. | |
571 | ||
aa65ff6b | 572 | config PPC_QUEUED_SPINLOCKS |
c9f34013 | 573 | bool "Queued spinlocks" if EXPERT |
aa65ff6b | 574 | depends on SMP |
c9f34013 | 575 | default PPC_BOOK3S_64 |
aa65ff6b NP |
576 | help |
577 | Say Y here to use queued spinlocks which give better scalability and | |
578 | fairness on large SMP and NUMA systems without harming single threaded | |
579 | performance. | |
580 | ||
12633e80 NF |
581 | config ARCH_CPU_PROBE_RELEASE |
582 | def_bool y | |
583 | depends on HOTPLUG_CPU | |
584 | ||
f2296a3d MS |
585 | config PPC64_SUPPORTS_MEMORY_FAILURE |
586 | bool "Add support for memory hwpoison" | |
587 | depends on PPC_BOOK3S_64 | |
588 | default "y" if PPC_POWERNV | |
589 | select ARCH_SUPPORTS_MEMORY_FAILURE | |
590 | ||
14cf11af | 591 | config KEXEC |
642e56ff | 592 | bool "kexec system call" |
772fd56d | 593 | depends on PPC_BOOK3S || PPC_E500 || (44x && !SMP) |
2965faa5 | 594 | select KEXEC_CORE |
14cf11af PM |
595 | help |
596 | kexec is a system call that implements the ability to shutdown your | |
597 | current kernel, and to start another kernel. It is like a reboot | |
1f1332f7 | 598 | but it is independent of the system firmware. And like a reboot |
14cf11af PM |
599 | you can start any kernel with it, not just Linux. |
600 | ||
1f1332f7 | 601 | The name comes from the similarity to the exec system call. |
14cf11af PM |
602 | |
603 | It is an ongoing process to be certain the hardware in a machine | |
604 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
605 | initially work for you. As of this writing the exact hardware |
606 | interface is strongly in flux, so no good recommendation can be | |
607 | made. | |
14cf11af | 608 | |
80f60e50 TJB |
609 | config KEXEC_FILE |
610 | bool "kexec file based system call" | |
611 | select KEXEC_CORE | |
39652741 | 612 | select HAVE_IMA_KEXEC if IMA |
175fca3b | 613 | select KEXEC_ELF |
80f60e50 TJB |
614 | depends on PPC64 |
615 | depends on CRYPTO=y | |
616 | depends on CRYPTO_SHA256=y | |
617 | help | |
618 | This is a new version of the kexec system call. This call is | |
619 | file based and takes in file descriptors as system call arguments | |
620 | for kernel and initramfs as opposed to a list of segments as is the | |
621 | case for the older kexec call. | |
622 | ||
b799a09f AT |
623 | config ARCH_HAS_KEXEC_PURGATORY |
624 | def_bool KEXEC_FILE | |
625 | ||
5017b459 NP |
626 | config PPC64_BIG_ENDIAN_ELF_ABI_V2 |
627 | bool "Build big-endian kernel using ELF ABI V2 (EXPERIMENTAL)" | |
628 | depends on PPC64 && CPU_BIG_ENDIAN | |
629 | depends on CC_HAS_ELFV2 | |
a11334d8 | 630 | depends on LD_VERSION >= 22400 || LLD_VERSION >= 150000 |
5017b459 NP |
631 | help |
632 | This builds the kernel image using the "Power Architecture 64-Bit ELF | |
633 | V2 ABI Specification", which has a reduced stack overhead and faster | |
634 | function calls. This internal kernel ABI option does not affect | |
635 | userspace compatibility. | |
636 | ||
637 | The V2 ABI is standard for 64-bit little-endian, but for big-endian | |
638 | it is less well tested by kernel and toolchain. However some distros | |
639 | build userspace this way, and it can produce a functioning kernel. | |
640 | ||
641 | This requires GCC and binutils 2.24 or newer. | |
642 | ||
4c91bd6e KH |
643 | config RELOCATABLE |
644 | bool "Build a relocatable kernel" | |
dfc3095c | 645 | depends on PPC64 || (FLATMEM && (44x || PPC_85xx)) |
4c91bd6e KH |
646 | select NONSTATIC_KERNEL |
647 | help | |
648 | This builds a kernel image that is capable of running at the | |
649 | location the kernel is loaded at. For ppc32, there is no any | |
650 | alignment restrictions, and this feature is a superset of | |
651 | DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use | |
652 | 16k-aligned base address. The kernel is linked as a | |
653 | position-independent executable (PIE) and contains dynamic relocations | |
654 | which are processed early in the bootup process. | |
655 | ||
656 | One use is for the kexec on panic case where the recovery kernel | |
657 | must live at a different physical address than the primary | |
658 | kernel. | |
659 | ||
660 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
661 | it has been loaded at and the compile time physical addresses | |
662 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
663 | setting can still be useful to bootwrappers that need to know the | |
664 | load address of the kernel (eg. u-boot/mkimage). | |
665 | ||
2b0e86cc JY |
666 | config RANDOMIZE_BASE |
667 | bool "Randomize the address of the kernel image" | |
73d11498 | 668 | depends on PPC_85xx && FLATMEM |
2b0e86cc JY |
669 | depends on RELOCATABLE |
670 | help | |
671 | Randomizes the virtual address at which the kernel image is | |
672 | loaded, as a security feature that deters exploit attempts | |
673 | relying on knowledge of the location of kernel internals. | |
674 | ||
675 | If unsure, say Y. | |
676 | ||
70839d20 NP |
677 | config RELOCATABLE_TEST |
678 | bool "Test relocatable kernel" | |
679 | depends on (PPC64 && RELOCATABLE) | |
70839d20 NP |
680 | help |
681 | This runs the relocatable kernel at the address it was initially | |
682 | loaded at, which tends to be non-zero and therefore test the | |
683 | relocation code. | |
684 | ||
e8625d46 | 685 | config CRASH_DUMP |
22bd0177 | 686 | bool "Build a dump capture kernel" |
dfc3095c CL |
687 | depends on PPC64 || PPC_BOOK3S_32 || PPC_85xx || (44x && !SMP) |
688 | select RELOCATABLE if PPC64 || 44x || PPC_85xx | |
e8625d46 | 689 | help |
22bd0177 | 690 | Build a kernel suitable for use as a dump capture kernel. |
54622f10 MK |
691 | The same kernel binary can be used as production kernel and dump |
692 | capture kernel. | |
e8625d46 | 693 | |
eb39c880 MS |
694 | config FA_DUMP |
695 | bool "Firmware-assisted dump" | |
41df5928 | 696 | depends on PPC64 && (PPC_RTAS || PPC_POWERNV) |
22bd0177 HB |
697 | select CRASH_CORE |
698 | select CRASH_DUMP | |
242f271c | 699 | help |
eb39c880 MS |
700 | A robust mechanism to get reliable kernel crash dump with |
701 | assistance from firmware. This approach does not use kexec, | |
22bd0177 | 702 | instead firmware assists in booting the capture kernel |
eb39c880 MS |
703 | while preserving memory contents. Firmware-assisted dump |
704 | is meant to be a kdump replacement offering robustness and | |
705 | speed not possible without system firmware assistance. | |
242f271c | 706 | |
41df5928 HB |
707 | If unsure, say "y". Only special kernels like petitboot may |
708 | need to say "N" here. | |
242f271c | 709 | |
bec53196 HB |
710 | config PRESERVE_FA_DUMP |
711 | bool "Preserve Firmware-assisted dump" | |
712 | depends on PPC64 && PPC_POWERNV && !FA_DUMP | |
713 | help | |
714 | On a kernel with FA_DUMP disabled, this option helps to preserve | |
715 | crash data from a previously crash'ed kernel. Useful when the next | |
716 | memory preserving kernel boot would process this crash data. | |
717 | Petitboot kernel is the typical usecase for this option. | |
718 | ||
6f713d18 HB |
719 | config OPAL_CORE |
720 | bool "Export OPAL memory as /sys/firmware/opal/core" | |
721 | depends on PPC64 && PPC_POWERNV | |
722 | help | |
723 | This option uses the MPIPL support in firmware to provide an | |
724 | ELF core of OPAL memory after a crash. The ELF core is exported | |
725 | as /sys/firmware/opal/core file which is helpful in debugging | |
726 | OPAL crashes using GDB. | |
242f271c | 727 | |
14cf11af PM |
728 | config IRQ_ALL_CPUS |
729 | bool "Distribute interrupts on all CPUs by default" | |
6cf09b9d | 730 | depends on SMP |
14cf11af PM |
731 | help |
732 | This option gives the kernel permission to distribute IRQs across | |
733 | multiple CPUs. Saying N here will route all IRQs to the first | |
734 | CPU. Generally saying Y is safe, although some problems have been | |
735 | reported with SMP Power Macintoshes with this option enabled. | |
736 | ||
ffa27b6b | 737 | config NUMA |
bae80c27 | 738 | bool "NUMA Memory Allocation and Scheduler Support" |
25395cd2 | 739 | depends on PPC64 && SMP |
4c28b32b | 740 | default y if PPC_PSERIES || PPC_POWERNV |
7ecd19cf | 741 | select USE_PERCPU_NUMA_NODE_ID |
bae80c27 ME |
742 | help |
743 | Enable NUMA (Non-Uniform Memory Access) support. | |
744 | ||
745 | The kernel will try to allocate memory used by a CPU on the | |
746 | local memory controller of the CPU and add some more | |
747 | NUMA awareness to the kernel. | |
ffa27b6b | 748 | |
c80d79d7 YG |
749 | config NODES_SHIFT |
750 | int | |
ea55bf29 | 751 | default "8" if PPC64 |
c80d79d7 | 752 | default "4" |
a9ee6cf5 | 753 | depends on NUMA |
c80d79d7 | 754 | |
64bb80d8 NA |
755 | config HAVE_MEMORYLESS_NODES |
756 | def_bool y | |
757 | depends on NUMA | |
758 | ||
14cf11af PM |
759 | config ARCH_SELECT_MEMORY_MODEL |
760 | def_bool y | |
761 | depends on PPC64 | |
762 | ||
763 | config ARCH_FLATMEM_ENABLE | |
9100b205 AW |
764 | def_bool y |
765 | depends on (PPC64 && !NUMA) || PPC32 | |
14cf11af | 766 | |
45fb6cea | 767 | config ARCH_SPARSEMEM_ENABLE |
14cf11af | 768 | def_bool y |
9100b205 | 769 | depends on PPC64 |
d29eff7b | 770 | select SPARSEMEM_VMEMMAP_ENABLE |
14cf11af | 771 | |
45fb6cea | 772 | config ARCH_SPARSEMEM_DEFAULT |
14cf11af | 773 | def_bool y |
7b3912f4 | 774 | depends on PPC_BOOK3S_64 |
14cf11af | 775 | |
f6853eb5 ME |
776 | config ILLEGAL_POINTER_VALUE |
777 | hex | |
778 | # This is roughly half way between the top of user space and the bottom | |
779 | # of kernel space, which seems about as good as we can get. | |
780 | default 0x5deadbeef0000000 if PPC64 | |
781 | default 0 | |
782 | ||
7e9191da MK |
783 | config ARCH_MEMORY_PROBE |
784 | def_bool y | |
785 | depends on MEMORY_HOTPLUG | |
786 | ||
ca9153a3 IY |
787 | choice |
788 | prompt "Page size" | |
f22969a6 | 789 | default PPC_64K_PAGES if PPC_BOOK3S_64 |
ca9153a3 | 790 | default PPC_4K_PAGES |
3c726f8d | 791 | help |
ca9153a3 IY |
792 | Select the kernel logical page size. Increasing the page size |
793 | will reduce software overhead at each page boundary, allow | |
794 | hardware prefetch mechanisms to be more effective, and allow | |
795 | larger dma transfers increasing IO efficiency and reducing | |
796 | overhead. However the utilization of memory will increase. | |
797 | For example, each cached file will using a multiple of the | |
798 | page size to hold its contents and the difference between the | |
799 | end of file and the end of page is wasted. | |
800 | ||
801 | Some dedicated systems, such as software raid serving with | |
802 | accelerated calculations, have shown significant increases. | |
803 | ||
804 | If you configure a 64 bit kernel for 64k pages but the | |
805 | processor does not support them, then the kernel will simulate | |
806 | them with 4k pages, loading them on demand, but with the | |
807 | reduced software overhead and larger internal fragmentation. | |
808 | For the 32 bit kernel, a large page option will not be offered | |
809 | unless it is supported by the configured processor. | |
810 | ||
811 | If unsure, choose 4K_PAGES. | |
812 | ||
813 | config PPC_4K_PAGES | |
814 | bool "4k page size" | |
19f97c98 | 815 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 IY |
816 | |
817 | config PPC_16K_PAGES | |
55f8b5b8 | 818 | bool "16k page size" |
55c8fc3f | 819 | depends on 44x || PPC_8xx |
ca9153a3 IY |
820 | |
821 | config PPC_64K_PAGES | |
55f8b5b8 | 822 | bool "64k page size" |
bba43630 | 823 | depends on 44x || PPC_BOOK3S_64 |
19f97c98 | 824 | select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64 |
ca9153a3 | 825 | |
e1240122 | 826 | config PPC_256K_PAGES |
4eeef098 CL |
827 | bool "256k page size (Requires non-standard binutils settings)" |
828 | depends on 44x && !PPC_47x | |
e1240122 YT |
829 | help |
830 | Make the page size 256k. | |
831 | ||
4eeef098 CL |
832 | The kernel will only be able to run applications that have been |
833 | compiled with '-zmax-page-size' set to 256K (the default is 64K) using | |
834 | binutils later than 2.17.50.0.3, or by patching the ELF_MAXPAGESIZE | |
835 | definition from 0x10000 to 0x40000 in older versions. | |
e1240122 | 836 | |
ca9153a3 | 837 | endchoice |
3c726f8d | 838 | |
d036dc79 ME |
839 | config PAGE_SIZE_4KB |
840 | def_bool y | |
841 | depends on PPC_4K_PAGES | |
842 | ||
843 | config PAGE_SIZE_16KB | |
844 | def_bool y | |
845 | depends on PPC_16K_PAGES | |
846 | ||
847 | config PAGE_SIZE_64KB | |
848 | def_bool y | |
849 | depends on PPC_64K_PAGES | |
850 | ||
851 | config PAGE_SIZE_256KB | |
852 | def_bool y | |
853 | depends on PPC_256K_PAGES | |
854 | ||
555f4fdb CL |
855 | config PPC_PAGE_SHIFT |
856 | int | |
857 | default 18 if PPC_256K_PAGES | |
858 | default 16 if PPC_64K_PAGES | |
859 | default 14 if PPC_16K_PAGES | |
860 | default 12 | |
861 | ||
47613407 HM |
862 | config THREAD_SHIFT |
863 | int "Thread shift" if EXPERT | |
864 | range 13 15 | |
865 | default "15" if PPC_256K_PAGES | |
866 | default "14" if PPC64 | |
867 | default "13" | |
868 | help | |
869 | Used to define the stack size. The default is almost always what you | |
870 | want. Only change this if you know what you are doing. | |
871 | ||
0f4a9041 | 872 | config DATA_SHIFT_BOOL |
da1adea0 | 873 | bool "Set custom data alignment" |
0f4a9041 | 874 | depends on ADVANCED_OPTIONS |
90cbac0e | 875 | depends on STRICT_KERNEL_RWX || DEBUG_PAGEALLOC || KFENCE |
49e3d8ea | 876 | depends on PPC_BOOK3S_32 || (PPC_8xx && !PIN_TLB_DATA && !STRICT_KERNEL_RWX) || \ |
dfc3095c | 877 | PPC_85xx |
0f4a9041 CL |
878 | help |
879 | This option allows you to set the kernel data alignment. When | |
880 | RAM is mapped by blocks, the alignment needs to fit the size and | |
881 | number of possible blocks. The default should be OK for most configs. | |
882 | ||
883 | Say N here unless you know what you are doing. | |
166d97d9 CL |
884 | |
885 | config DATA_SHIFT | |
0f4a9041 | 886 | int "Data shift" if DATA_SHIFT_BOOL |
166d97d9 | 887 | default 24 if STRICT_KERNEL_RWX && PPC64 |
90cbac0e CL |
888 | range 17 28 if (STRICT_KERNEL_RWX || DEBUG_PAGEALLOC || KFENCE) && PPC_BOOK3S_32 |
889 | range 19 23 if (STRICT_KERNEL_RWX || DEBUG_PAGEALLOC || KFENCE) && PPC_8xx | |
dfc3095c | 890 | range 20 24 if (STRICT_KERNEL_RWX || DEBUG_PAGEALLOC || KFENCE) && PPC_85xx |
63b2bc61 | 891 | default 22 if STRICT_KERNEL_RWX && PPC_BOOK3S_32 |
90cbac0e | 892 | default 18 if (DEBUG_PAGEALLOC || KFENCE) && PPC_BOOK3S_32 |
8f54a6f7 | 893 | default 23 if STRICT_KERNEL_RWX && PPC_8xx |
90cbac0e CL |
894 | default 23 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx && PIN_TLB_DATA |
895 | default 19 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx | |
dfc3095c | 896 | default 24 if STRICT_KERNEL_RWX && PPC_85xx |
166d97d9 | 897 | default PPC_PAGE_SHIFT |
0f4a9041 CL |
898 | help |
899 | On Book3S 32 (603+), DBATs are used to map kernel text and rodata RO. | |
900 | Smaller is the alignment, greater is the number of necessary DBATs. | |
166d97d9 | 901 | |
8f54a6f7 CL |
902 | On 8xx, large pages (512kb or 8M) are used to map kernel linear |
903 | memory. Aligning to 8M reduces TLB misses as only 8M pages are used | |
da1adea0 CL |
904 | in that case. If PIN_TLB is selected, it must be aligned to 8M as |
905 | 8M pages will be pinned. | |
8f54a6f7 | 906 | |
0192445c | 907 | config ARCH_FORCE_MAX_ORDER |
6fc54303 | 908 | int "Order of maximal physically contiguous allocations" |
23baf831 | 909 | default "8" if PPC64 && PPC_64K_PAGES |
23baf831 | 910 | default "12" if PPC64 && !PPC_64K_PAGES |
23baf831 | 911 | default "8" if PPC32 && PPC_16K_PAGES |
23baf831 | 912 | default "6" if PPC32 && PPC_64K_PAGES |
23baf831 | 913 | default "4" if PPC32 && PPC_256K_PAGES |
23baf831 | 914 | default "10" |
53bcddb9 | 915 | help |
6fc54303 MRI |
916 | The kernel page allocator limits the size of maximal physically |
917 | contiguous allocations. The limit is called MAX_ORDER and it | |
918 | defines the maximal power of two of number of pages that can be | |
919 | allocated as a single contiguous block. This option allows | |
920 | overriding the default setting when ability to allocate very | |
921 | large blocks of physically contiguous memory is required. | |
53bcddb9 SR |
922 | |
923 | The page size is not necessarily 4KB. For example, on 64-bit | |
924 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
925 | this in mind when choosing a value for this option. | |
926 | ||
6fc54303 MRI |
927 | Don't change if unsure. |
928 | ||
fa28237c | 929 | config PPC_SUBPAGE_PROT |
63396ada NP |
930 | bool "Support setting protections for 4k subpages (subpage_prot syscall)" |
931 | default n | |
c2857374 | 932 | depends on PPC_64S_HASH_MMU && PPC_64K_PAGES |
fa28237c | 933 | help |
63396ada | 934 | This option adds support for system call to allow user programs |
fa28237c PM |
935 | to set access permissions (read/write, readonly, or no access) |
936 | on the 4k subpages of each 64k page. | |
937 | ||
63396ada NP |
938 | If unsure, say N here. |
939 | ||
9b725a90 SA |
940 | config PPC_PROT_SAO_LPAR |
941 | bool "Support PROT_SAO mappings in LPARs" | |
942 | depends on PPC_BOOK3S_64 | |
943 | help | |
944 | This option adds support for PROT_SAO mappings from userspace | |
945 | inside LPARs on supported CPUs. | |
946 | ||
947 | This may cause issues when performing guest migration from | |
948 | a CPU that supports SAO to one that does not. | |
949 | ||
950 | If unsure, say N here. | |
951 | ||
e83d0169 IM |
952 | config PPC_COPRO_BASE |
953 | bool | |
e83d0169 | 954 | |
14cf11af PM |
955 | config SCHED_SMT |
956 | bool "SMT (Hyperthreading) scheduler support" | |
957 | depends on PPC64 && SMP | |
14cf11af PM |
958 | help |
959 | SMT scheduler support improves the CPU scheduler's decision making | |
960 | when dealing with POWER5 cpus at a cost of slightly increased | |
961 | overhead in some places. If unsure say N here. | |
962 | ||
b92a66a6 MN |
963 | config PPC_DENORMALISATION |
964 | bool "PowerPC denormalisation exception handling" | |
965 | depends on PPC_BOOK3S_64 | |
4e90a2a7 | 966 | default "y" if PPC_POWERNV |
4f44e8ae | 967 | help |
b92a66a6 MN |
968 | Add support for handling denormalisation of single precision |
969 | values. Useful for bare metal only. If unsure say Y here. | |
970 | ||
14cf11af | 971 | config CMDLINE |
f134a7ce | 972 | string "Initial kernel command string" |
cbe46bd4 | 973 | default "" |
14cf11af PM |
974 | help |
975 | On some platforms, there is currently no way for the boot loader to | |
976 | pass arguments to the kernel. For these platforms, you can supply | |
977 | some command-line options at build time by entering them here. In | |
978 | most cases you will need to specify the root device here. | |
979 | ||
d79fbb3a CP |
980 | choice |
981 | prompt "Kernel command line type" if CMDLINE != "" | |
982 | default CMDLINE_FROM_BOOTLOADER | |
983 | ||
984 | config CMDLINE_FROM_BOOTLOADER | |
985 | bool "Use bootloader kernel arguments if available" | |
986 | help | |
987 | Uses the command-line options passed by the boot loader. If | |
988 | the boot loader doesn't provide any, the default kernel command | |
989 | string provided in CMDLINE will be used. | |
990 | ||
991 | config CMDLINE_EXTEND | |
992 | bool "Extend bootloader kernel arguments" | |
993 | help | |
994 | The command-line arguments provided by the boot loader will be | |
995 | appended to the default kernel command string. | |
996 | ||
eb3b80f6 SS |
997 | config CMDLINE_FORCE |
998 | bool "Always use the default kernel command string" | |
eb3b80f6 SS |
999 | help |
1000 | Always use the default kernel command string, even if the boot | |
1001 | loader passes other arguments to the kernel. | |
1002 | This is useful if you cannot or don't want to change the | |
1003 | command-line options your boot loader passes to the kernel. | |
1004 | ||
d79fbb3a CP |
1005 | endchoice |
1006 | ||
c356aa45 GL |
1007 | config EXTRA_TARGETS |
1008 | string "Additional default image types" | |
1009 | help | |
1010 | List additional targets to be built by the bootwrapper here (separated | |
1011 | by spaces). This is useful for targets that depend of device tree | |
1012 | files in the .dts directory. | |
1013 | ||
1014 | Targets in this list will be build as part of the default build | |
1015 | target, or when the user does a 'make zImage' or a | |
1016 | 'make zImage.initrd'. | |
1017 | ||
1018 | If unsure, leave blank | |
1019 | ||
b28f5081 JB |
1020 | config ARCH_WANTS_FREEZER_CONTROL |
1021 | def_bool y | |
1022 | depends on ADB_PMU | |
1023 | ||
8636a1f9 | 1024 | source "kernel/power/Kconfig" |
14cf11af | 1025 | |
92e3da3c RP |
1026 | config PPC_MEM_KEYS |
1027 | prompt "PowerPC Memory Protection Keys" | |
1028 | def_bool y | |
1029 | depends on PPC_BOOK3S_64 | |
c2857374 | 1030 | depends on PPC_64S_HASH_MMU |
92e3da3c RP |
1031 | select ARCH_USES_HIGH_VMA_FLAGS |
1032 | select ARCH_HAS_PKEYS | |
1033 | help | |
1034 | Memory Protection Keys provides a mechanism for enforcing | |
1035 | page-based protections, but without requiring modification of the | |
1036 | page tables when an application changes protection domains. | |
1037 | ||
1eecbcdc | 1038 | For details, see Documentation/core-api/protection-keys.rst |
92e3da3c RP |
1039 | |
1040 | If unsure, say y. | |
1041 | ||
1a8916ee NJ |
1042 | config PPC_SECURE_BOOT |
1043 | prompt "Enable secure boot support" | |
1044 | bool | |
5c5e46da | 1045 | depends on PPC_POWERNV || PPC_PSERIES |
4238fad3 | 1046 | depends on IMA_ARCH_POLICY |
9e2b4be3 | 1047 | imply IMA_SECURE_AND_OR_TRUSTED_BOOT |
46b2cbeb | 1048 | select PSERIES_PLPKS if PPC_PSERIES |
1a8916ee NJ |
1049 | help |
1050 | Systems with firmware secure boot enabled need to define security | |
1051 | policies to extend secure boot to the OS. This config allows a user | |
1052 | to enable OS secure boot on systems that have firmware support for | |
1053 | it. If in doubt say N. | |
1054 | ||
bd5d9c74 NJ |
1055 | config PPC_SECVAR_SYSFS |
1056 | bool "Enable sysfs interface for POWER secure variables" | |
1057 | default y | |
1058 | depends on PPC_SECURE_BOOT | |
1059 | depends on SYSFS | |
1060 | help | |
1061 | POWER secure variables are managed and controlled by firmware. | |
1062 | These variables are exposed to userspace via sysfs to enable | |
1063 | read/write operations on these variables. Say Y if you have | |
1064 | secure boot enabled and want to expose variables to userspace. | |
1065 | ||
14cf11af PM |
1066 | endmenu |
1067 | ||
1068 | config ISA_DMA_API | |
1069 | bool | |
3d066d77 | 1070 | default PCI |
14cf11af PM |
1071 | |
1072 | menu "Bus options" | |
1073 | ||
1074 | config ISA | |
1075 | bool "Support for ISA-bus hardware" | |
933ee711 | 1076 | depends on PPC_CHRP |
f9bd170a | 1077 | select PPC_I8259 |
14cf11af PM |
1078 | help |
1079 | Find out whether you have ISA slots on your motherboard. ISA is the | |
1080 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
1081 | inside your box. If you have an Apple machine, say N here; if you | |
933ee711 PB |
1082 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
1083 | embedded board, consult your board documentation. | |
14cf11af PM |
1084 | |
1085 | config GENERIC_ISA_DMA | |
1086 | bool | |
1927445a | 1087 | depends on ISA_DMA_API |
14cf11af PM |
1088 | default y |
1089 | ||
25635c71 PM |
1090 | config PPC_INDIRECT_PCI |
1091 | bool | |
1092 | depends on PCI | |
63dafe57 | 1093 | default y if 40x || 44x |
25635c71 | 1094 | |
14cf11af PM |
1095 | config SBUS |
1096 | bool | |
1097 | ||
08264cbc KG |
1098 | config FSL_SOC |
1099 | bool | |
1100 | ||
55c44991 | 1101 | config FSL_PCI |
4f44e8ae | 1102 | bool |
11ddce15 | 1103 | select ARCH_HAS_DMA_SET_MASK |
55c44991 | 1104 | select PPC_INDIRECT_PCI |
d0839118 | 1105 | select PCI_QUIRKS |
55c44991 | 1106 | |
4ffd6952 AV |
1107 | config FSL_PMC |
1108 | bool | |
1109 | default y | |
1110 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
1111 | help | |
1112 | Freescale MPC85xx/MPC86xx power management controller support | |
1113 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
1114 | ||
d164f6d4 VG |
1115 | config PPC4xx_CPM |
1116 | bool | |
1117 | default y | |
1118 | depends on SUSPEND && (44x || 40x) | |
1119 | help | |
1120 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | |
1121 | It also enables support for two different idle states (idle-wait | |
1122 | and idle-doze). | |
1123 | ||
2a706919 SR |
1124 | config 4xx_SOC |
1125 | bool | |
1126 | ||
acaa7aa3 | 1127 | config FSL_LBC |
3ab8f2a2 | 1128 | bool "Freescale Local Bus support" |
acaa7aa3 | 1129 | help |
3ab8f2a2 RZ |
1130 | Enables reporting of errors from the Freescale local bus |
1131 | controller. Also contains some common code used by | |
1132 | drivers for specific local bus peripherals. | |
acaa7aa3 | 1133 | |
83ff9dcf AV |
1134 | config FSL_GTM |
1135 | bool | |
1136 | depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
1137 | help | |
1138 | Freescale General-purpose Timers support | |
1139 | ||
14cf11af PM |
1140 | config PCI_8260 |
1141 | bool | |
1142 | depends on PCI && 8260 | |
25635c71 | 1143 | select PPC_INDIRECT_PCI |
14cf11af PM |
1144 | default y |
1145 | ||
388b78ad AB |
1146 | config FSL_RIO |
1147 | bool "Freescale Embedded SRIO Controller support" | |
1753d50c | 1148 | depends on RAPIDIO = y && HAVE_RAPIDIO |
388b78ad | 1149 | default "n" |
4f44e8ae | 1150 | help |
388b78ad AB |
1151 | Include support for RapidIO controller on Freescale embedded |
1152 | processors (MPC8548, MPC8641, etc). | |
1153 | ||
14cf11af PM |
1154 | endmenu |
1155 | ||
0f890c8d SP |
1156 | config NONSTATIC_KERNEL |
1157 | bool | |
0f890c8d | 1158 | |
14cf11af PM |
1159 | menu "Advanced setup" |
1160 | depends on PPC32 | |
1161 | ||
1162 | config ADVANCED_OPTIONS | |
1163 | bool "Prompt for advanced kernel configuration options" | |
1164 | help | |
1165 | This option will enable prompting for a variety of advanced kernel | |
1166 | configuration options. These options can cause the kernel to not | |
1167 | work if they are set incorrectly, but can be used to optimize certain | |
1168 | aspects of kernel memory management. | |
1169 | ||
1170 | Unless you know what you are doing, say N here. | |
1171 | ||
1172 | comment "Default settings for advanced configuration options are used" | |
1173 | depends on !ADVANCED_OPTIONS | |
1174 | ||
14cf11af PM |
1175 | config LOWMEM_SIZE_BOOL |
1176 | bool "Set maximum low memory" | |
1177 | depends on ADVANCED_OPTIONS | |
1178 | help | |
1179 | This option allows you to set the maximum amount of memory which | |
1180 | will be used as "low memory", that is, memory which the kernel can | |
1181 | access directly, without having to set up a kernel virtual mapping. | |
1182 | This can be useful in optimizing the layout of kernel virtual | |
1183 | memory. | |
1184 | ||
1185 | Say N here unless you know what you are doing. | |
1186 | ||
1187 | config LOWMEM_SIZE | |
1188 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | |
1189 | default "0x30000000" | |
1190 | ||
96051465 TP |
1191 | config LOWMEM_CAM_NUM_BOOL |
1192 | bool "Set number of CAMs to use to map low memory" | |
dfc3095c | 1193 | depends on ADVANCED_OPTIONS && PPC_85xx |
96051465 TP |
1194 | help |
1195 | This option allows you to set the maximum number of CAM slots that | |
1196 | will be used to map low memory. There are a limited number of slots | |
1197 | available and even more limited number that will fit in the L1 MMU. | |
1198 | However, using more entries will allow mapping more low memory. This | |
1199 | can be useful in optimizing the layout of kernel virtual memory. | |
1200 | ||
1201 | Say N here unless you know what you are doing. | |
1202 | ||
1203 | config LOWMEM_CAM_NUM | |
dfc3095c | 1204 | depends on PPC_85xx |
96051465 | 1205 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
49e3d8ea CL |
1206 | default 3 if !STRICT_KERNEL_RWX |
1207 | default 9 if DATA_SHIFT >= 24 | |
1208 | default 12 if DATA_SHIFT >= 22 | |
1209 | default 15 | |
96051465 | 1210 | |
0f890c8d | 1211 | config DYNAMIC_MEMSTART |
642e56ff | 1212 | bool "Enable page aligned dynamic load address for kernel" |
dfc3095c | 1213 | depends on ADVANCED_OPTIONS && FLATMEM && (PPC_85xx || 44x) |
0f890c8d SP |
1214 | select NONSTATIC_KERNEL |
1215 | help | |
1216 | This option enables the kernel to be loaded at any page aligned | |
4f44e8ae | 1217 | physical address. The kernel creates a mapping from KERNELBASE to |
0f890c8d SP |
1218 | the address where the kernel is loaded. The page size here implies |
1219 | the TLB page size of the mapping for kernel on the particular platform. | |
1220 | Please refer to the init code for finding the TLB page size. | |
1221 | ||
1222 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | |
1223 | kernel image, where the only restriction is the page aligned kernel | |
4f44e8ae | 1224 | load address. When this option is enabled, the compile time physical |
0f890c8d SP |
1225 | address CONFIG_PHYSICAL_START is ignored. |
1226 | ||
9c5f7d39 SP |
1227 | This option is overridden by CONFIG_RELOCATABLE |
1228 | ||
37dd2bad KG |
1229 | config PAGE_OFFSET_BOOL |
1230 | bool "Set custom page offset address" | |
1231 | depends on ADVANCED_OPTIONS | |
1232 | help | |
1233 | This option allows you to set the kernel virtual address at which | |
1234 | the kernel will map low memory. This can be useful in optimizing | |
1235 | the virtual memory layout of the system. | |
1236 | ||
1237 | Say N here unless you know what you are doing. | |
1238 | ||
1239 | config PAGE_OFFSET | |
1240 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
1241 | default "0xc0000000" | |
1242 | ||
14cf11af PM |
1243 | config KERNEL_START_BOOL |
1244 | bool "Set custom kernel base address" | |
1245 | depends on ADVANCED_OPTIONS | |
1246 | help | |
1247 | This option allows you to set the kernel virtual address at which | |
37dd2bad KG |
1248 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
1249 | however there are times (like kdump) that one might not want them | |
1250 | to be the same. | |
14cf11af PM |
1251 | |
1252 | Say N here unless you know what you are doing. | |
1253 | ||
1254 | config KERNEL_START | |
1255 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
37dd2bad | 1256 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
0f890c8d | 1257 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
14cf11af PM |
1258 | default "0xc0000000" |
1259 | ||
37dd2bad KG |
1260 | config PHYSICAL_START_BOOL |
1261 | bool "Set physical address where the kernel is loaded" | |
dfc3095c | 1262 | depends on ADVANCED_OPTIONS && FLATMEM && PPC_85xx |
37dd2bad KG |
1263 | help |
1264 | This gives the physical address where the kernel is loaded. | |
1265 | ||
1266 | Say N here unless you know what you are doing. | |
1267 | ||
1268 | config PHYSICAL_START | |
1269 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
26598f28 | 1270 | default "0x02000000" if PPC_BOOK3S && CRASH_DUMP && !NONSTATIC_KERNEL |
37dd2bad KG |
1271 | default "0x00000000" |
1272 | ||
1273 | config PHYSICAL_ALIGN | |
1274 | hex | |
dfc3095c | 1275 | default "0x04000000" if PPC_85xx |
37dd2bad KG |
1276 | help |
1277 | This value puts the alignment restrictions on physical address | |
1278 | where kernel is loaded and run from. Kernel is compiled for an | |
1279 | address which meets above alignment restriction. | |
1280 | ||
14cf11af PM |
1281 | config TASK_SIZE_BOOL |
1282 | bool "Set custom user task size" | |
1283 | depends on ADVANCED_OPTIONS | |
1284 | help | |
1285 | This option allows you to set the amount of virtual address space | |
1286 | allocated to user tasks. This can be useful in optimizing the | |
1287 | virtual memory layout of the system. | |
1288 | ||
1289 | Say N here unless you know what you are doing. | |
1290 | ||
1291 | config TASK_SIZE | |
1292 | hex "Size of user task space" if TASK_SIZE_BOOL | |
933ee711 | 1293 | default "0x80000000" if PPC_8xx |
80edc68e | 1294 | default "0xb0000000" if PPC_BOOK3S_32 |
4d9e5510 | 1295 | default "0xc0000000" |
14cf11af PM |
1296 | endmenu |
1297 | ||
cabb5587 | 1298 | if PPC64 |
bdbc29c1 | 1299 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
37dd2bad KG |
1300 | config PAGE_OFFSET |
1301 | hex | |
1302 | default "0xc000000000000000" | |
cabb5587 SR |
1303 | config KERNEL_START |
1304 | hex | |
eeb2d218 | 1305 | default "0xc000000000000000" |
37dd2bad KG |
1306 | config PHYSICAL_START |
1307 | hex | |
37dd2bad | 1308 | default "0x00000000" |
cabb5587 SR |
1309 | endif |
1310 | ||
1088a209 SM |
1311 | config PPC_LIB_RHEAP |
1312 | bool | |
1313 | ||
bbf45ba5 | 1314 | source "arch/powerpc/kvm/Kconfig" |
85baa095 ME |
1315 | |
1316 | source "kernel/livepatch/Kconfig" |