1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 source "arch/powerpc/platforms/Kconfig.cputype !! 2 # For a description of the syntax of this configuration file,
>> 3 # see Documentation/kbuild/kconfig-language.txt.
>> 4 #
3 5
4 config CC_HAS_ELFV2 !! 6 mainmenu "Linux Kernel Configuration"
5 def_bool PPC64 && $(cc-option, -mabi=e <<
6 7
7 config CC_HAS_PREFIXED !! 8 config X86
8 def_bool PPC64 && $(cc-option, -mcpu=p !! 9 bool
9 !! 10 default y
10 config CC_HAS_PCREL !! 11 help
11 # Clang has a bug (https://github.com/ !! 12 This is Linux's home port. Linux was originally native to the Intel
12 # where pcrel code is not generated if !! 13 386, and runs on all the later x86 processors including the Intel
13 # -mno-vsx options are also given. Wit !! 14 486, 586, Pentiums, and various instruction-set-compatible chips by
14 # instructions are generated from regu !! 15 AMD, Cyrix, and others.
15 # do pcrel yet. <<
16 def_bool PPC64 && CC_IS_GCC && $(cc-op <<
17 16
18 config 32BIT !! 17 config MMU
19 bool 18 bool
20 default y if PPC32 !! 19 default y
21 20
22 config 64BIT !! 21 config SBUS
23 bool 22 bool
24 default y if PPC64 <<
25 23
26 config LIVEPATCH_64 !! 24 config UID16
27 def_bool PPC64 !! 25 bool
28 depends on LIVEPATCH !! 26 default y
29 27
30 config MMU !! 28 config GENERIC_ISA_DMA
31 bool 29 bool
32 default y 30 default y
33 31
34 config ARCH_MMAP_RND_BITS_MAX !! 32 source "init/Kconfig"
35 # On Book3S 64, the default virtual ad !! 33
36 # is 2^47 (128TB). As a maximum, allow !! 34
37 # 32T of address space (2^45), which s !! 35 menu "Processor type and features"
38 # between bottom-up and top-down alloc !! 36
39 # consume "normal" amounts of address !! 37 choice
40 # and 4K page sizes. !! 38 prompt "Subarchitecture Type"
41 default 29 if PPC_BOOK3S_64 && PPC_64K !! 39 default X86_PC
42 default 33 if PPC_BOOK3S_64 !! 40
43 # !! 41 config X86_PC
44 # On all other 64-bit platforms (curre !! 42 bool "PC-compatible"
45 # address space is 2^46 (64TB). Allow !! 43 help
46 # of address space (2^44). Only 4K pag !! 44 Choose this option if your computer is a standard PC or compatible.
47 default 32 if 64BIT # 32 = 44 (16T !! 45
48 # !! 46 config X86_VOYAGER
49 # For 32-bit, use the compat values, a !! 47 bool "Voyager (NCR)"
50 default ARCH_MMAP_RND_COMPAT_BITS_MAX !! 48 help
51 !! 49 Voyager is a MCA based 32 way capable SMP architecture proprietary
52 config ARCH_MMAP_RND_BITS_MIN !! 50 to NCR Corp. Machine classes 345x/35xx/4100/51xx are voyager based.
53 # Allow randomisation to consume up to !! 51
54 default 14 if 64BIT && PPC_64K_PAGES !! 52 *** WARNING ***
55 default 18 if 64BIT !! 53
56 # !! 54 If you do not specifically know you have a Voyager based machine,
57 # For 32-bit, use the compat values, a !! 55 say N here otherwise the kernel you build will not be bootable.
58 default ARCH_MMAP_RND_COMPAT_BITS_MIN !! 56
59 !! 57 config X86_NUMAQ
60 config ARCH_MMAP_RND_COMPAT_BITS_MAX !! 58 bool "NUMAQ (IBM/Sequent)"
61 # Total virtual address space for 32-b !! 59 help
62 # Allow randomisation to consume up to !! 60 This option is used for getting Linux to run on a (IBM/Sequent) NUMA
63 default 11 if PPC_256K_PAGES # 11 = !! 61 multiquad box. This changes the way that processors are bootstrapped,
64 default 13 if PPC_64K_PAGES # 13 = !! 62 and uses Clustered Logical APIC addressing mode instead of Flat Logical.
65 default 15 if PPC_16K_PAGES # 15 = !! 63 You will need a new lynxer.elf file to flash your firmware with - send
66 default 17 # 17 = !! 64 email to Martin.Bligh@us.ibm.com
67 !! 65
68 config ARCH_MMAP_RND_COMPAT_BITS_MIN !! 66 config X86_SUMMIT
69 # Total virtual address space for 32-b !! 67 bool "Summit/EXA (IBM x440)"
70 # Allow randomisation to consume up to !! 68 depends on SMP
71 default 5 if PPC_256K_PAGES # 5 = !! 69 help
72 default 7 if PPC_64K_PAGES # 7 = !! 70 This option is needed for IBM systems that use the Summit/EXA chipset.
73 default 9 if PPC_16K_PAGES # 9 = !! 71 In particular, it is needed for the x440.
74 default 11 # 11 = !! 72
75 !! 73 If you don't have one of these computers, you should say N here.
76 config NR_IRQS !! 74
77 int "Number of virtual interrupt numbe !! 75 config X86_BIGSMP
78 range 32 1048576 !! 76 bool "Support for other sub-arch SMP systems with more than 8 CPUs"
79 default "512" !! 77 depends on SMP
80 help !! 78 help
81 This defines the number of virtual i !! 79 This option is needed for the systems that have more than 8 CPUs
82 can manage. Virtual interrupt number !! 80 and if the system is not of any sub-arch type above.
83 /proc/interrupts. If you configure y !! 81
84 drivers will fail to load or worse - !! 82 If you don't have such a system, you should say N here.
85 !! 83
86 config NMI_IPI !! 84 config X86_VISWS
87 bool !! 85 bool "SGI 320/540 (Visual Workstation)"
88 depends on SMP && (DEBUGGER || KEXEC_C !! 86 help
89 default y !! 87 The SGI Visual Workstation series is an IA32-based workstation
90 !! 88 based on SGI systems chips with some legacy PC hardware attached.
91 config PPC_WATCHDOG !! 89
92 bool !! 90 Say Y here to create a kernel to run on the SGI 320 or 540.
93 depends on HARDLOCKUP_DETECTOR_ARCH !! 91
94 default y !! 92 A kernel compiled for the Visual Workstation will not run on PCs
95 help !! 93 and vice versa. See <file:Documentation/sgi-visws.txt> for details.
96 This is a placeholder when the power !! 94
97 watchdog is selected (arch/powerpc/k !! 95 config X86_GENERICARCH
98 selected via the generic lockup dete !! 96 bool "Generic architecture (Summit, bigsmp, default)"
99 have no standalone config option for !! 97 depends on SMP
100 !! 98 help
101 config STACKTRACE_SUPPORT !! 99 This option compiles in the Summit, bigsmp, default subarchitectures.
102 bool !! 100 It is intended for a generic binary kernel.
103 default y !! 101
104 !! 102 config X86_ES7000
105 config LOCKDEP_SUPPORT !! 103 bool "Support for Unisys ES7000 IA32 series"
106 bool !! 104 depends on SMP
107 default y !! 105 help
108 !! 106 Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
109 config GENERIC_LOCKBREAK !! 107 supposed to run on an IA32-based Unisys ES7000 system.
110 bool !! 108 Only choose this option if you have such a system, otherwise you
111 default y !! 109 should say N here.
112 depends on SMP && PREEMPTION && !PPC_Q !! 110
113 !! 111 endchoice
114 config GENERIC_HWEIGHT <<
115 bool <<
116 default y <<
117 <<
118 config PPC <<
119 bool <<
120 default y <<
121 # <<
122 # Please keep this list sorted alphabe <<
123 # <<
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 <<
165 select ARCH_OPTIONAL_KERNEL_RWX <<
166 select ARCH_OPTIONAL_KERNEL_RWX_DEFAUL <<
167 select ARCH_SPLIT_ARG64 <<
168 select ARCH_STACKWALK <<
169 select ARCH_SUPPORTS_ATOMIC_RMW <<
170 select ARCH_SUPPORTS_DEBUG_PAGEALLOC <<
171 select ARCH_USE_BUILTIN_BSWAP <<
172 select ARCH_USE_CMPXCHG_LOCKREF <<
173 select ARCH_USE_MEMTEST <<
174 select ARCH_USE_QUEUED_RWLOCKS <<
175 select ARCH_WANT_DEFAULT_BPF_JIT <<
176 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
177 select ARCH_WANT_IPC_PARSE_VERSION <<
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 <<
204 select GENERIC_IRQ_SHOW_LEVEL <<
205 select GENERIC_PCI_IOMAP <<
206 select GENERIC_PTDUMP <<
207 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 <<
297 select NEED_DMA_MAP_STATE <<
298 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
299 select NEED_PER_CPU_PAGE_FIRST_CHUNK <<
300 select NEED_SG_DMA_LENGTH <<
301 select OF <<
302 select OF_EARLY_FLATTREE <<
303 select OLD_SIGACTION <<
304 select OLD_SIGSUSPEND <<
305 select PCI_DOMAINS <<
306 select PCI_MSI_ARCH_FALLBACKS <<
307 select PCI_SYSCALL <<
308 select PPC_DAWR <<
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 <<
315 select VDSO_GETRANDOM <<
316 # <<
317 # Please keep this list sorted alphabe <<
318 # <<
319 <<
320 config PPC_BARRIER_NOSPEC <<
321 bool <<
322 default y <<
323 depends on PPC_BOOK3S_64 || PPC_E500 <<
324 112
325 config PPC_HAS_LBARX_LHARX !! 113 config ACPI_SRAT
326 bool 114 bool
>> 115 default y
>> 116 depends on NUMA && (X86_SUMMIT || X86_GENERICARCH)
>> 117
>> 118 config X86_CYCLONE_TIMER
>> 119 bool
>> 120 default y
>> 121 depends on X86_SUMMIT || X86_GENERICARCH
327 122
328 config EARLY_PRINTK !! 123 config ES7000_CLUSTERED_APIC
329 bool 124 bool
330 default y 125 default y
>> 126 depends on SMP && X86_ES7000 && MPENTIUMIII
331 127
332 config PANIC_TIMEOUT !! 128 choice
333 int !! 129 prompt "Processor family"
334 default 180 !! 130 default M686
>> 131
>> 132 config M386
>> 133 bool "386"
>> 134 ---help---
>> 135 This is the processor type of your CPU. This information is used for
>> 136 optimizing purposes. In order to compile a kernel that can run on
>> 137 all x86 CPU types (albeit not optimally fast), you can specify
>> 138 "386" here.
>> 139
>> 140 The kernel will not necessarily run on earlier architectures than
>> 141 the one you have chosen, e.g. a Pentium optimized kernel will run on
>> 142 a PPro, but not necessarily on a i486.
>> 143
>> 144 Here are the settings recommended for greatest speed:
>> 145 - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
>> 146 486DLC/DLC2, UMC 486SX-S and NexGen Nx586. Only "386" kernels
>> 147 will run on a 386 class machine.
>> 148 - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
>> 149 SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
>> 150 - "586" for generic Pentium CPUs lacking the TSC
>> 151 (time stamp counter) register.
>> 152 - "Pentium-Classic" for the Intel Pentium.
>> 153 - "Pentium-MMX" for the Intel Pentium MMX.
>> 154 - "Pentium-Pro" for the Intel Pentium Pro.
>> 155 - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
>> 156 - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
>> 157 - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
>> 158 - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
>> 159 - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
>> 160 - "Crusoe" for the Transmeta Crusoe series.
>> 161 - "Winchip-C6" for original IDT Winchip.
>> 162 - "Winchip-2" for IDT Winchip 2.
>> 163 - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
>> 164 - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
>> 165 - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).
>> 166
>> 167 If you don't know what to do, choose "386".
>> 168
>> 169 config M486
>> 170 bool "486"
>> 171 help
>> 172 Select this for a 486 series processor, either Intel or one of the
>> 173 compatible processors from AMD, Cyrix, IBM, or Intel. Includes DX,
>> 174 DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
>> 175 U5S.
>> 176
>> 177 config M586
>> 178 bool "586/K5/5x86/6x86/6x86MX"
>> 179 help
>> 180 Select this for an 586 or 686 series processor such as the AMD K5,
>> 181 the Intel 5x86 or 6x86, or the Intel 6x86MX. This choice does not
>> 182 assume the RDTSC (Read Time Stamp Counter) instruction.
>> 183
>> 184 config M586TSC
>> 185 bool "Pentium-Classic"
>> 186 help
>> 187 Select this for a Pentium Classic processor with the RDTSC (Read
>> 188 Time Stamp Counter) instruction for benchmarking.
>> 189
>> 190 config M586MMX
>> 191 bool "Pentium-MMX"
>> 192 help
>> 193 Select this for a Pentium with the MMX graphics/multimedia
>> 194 extended instructions.
>> 195
>> 196 config M686
>> 197 bool "Pentium-Pro"
>> 198 help
>> 199 Select this for Intel Pentium Pro chips. This enables the use of
>> 200 Pentium Pro extended instructions, and disables the init-time guard
>> 201 against the f00f bug found in earlier Pentiums.
>> 202
>> 203 config MPENTIUMII
>> 204 bool "Pentium-II/Celeron(pre-Coppermine)"
>> 205 help
>> 206 Select this for Intel chips based on the Pentium-II and
>> 207 pre-Coppermine Celeron core. This option enables an unaligned
>> 208 copy optimization, compiles the kernel with optimization flags
>> 209 tailored for the chip, and applies any applicable Pentium Pro
>> 210 optimizations.
>> 211
>> 212 config MPENTIUMIII
>> 213 bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
>> 214 help
>> 215 Select this for Intel chips based on the Pentium-III and
>> 216 Celeron-Coppermine core. This option enables use of some
>> 217 extended prefetch instructions in addition to the Pentium II
>> 218 extensions.
>> 219
>> 220 config MPENTIUM4
>> 221 bool "Pentium-4/Celeron(P4-based)/Xeon"
>> 222 help
>> 223 Select this for Intel Pentium 4 chips. This includes both
>> 224 the Pentium 4 and P4-based Celeron chips. This option
>> 225 enables compile flags optimized for the chip, uses the
>> 226 correct cache shift, and applies any applicable Pentium III
>> 227 optimizations.
>> 228
>> 229 config MK6
>> 230 bool "K6/K6-II/K6-III"
>> 231 help
>> 232 Select this for an AMD K6-family processor. Enables use of
>> 233 some extended instructions, and passes appropriate optimization
>> 234 flags to GCC.
>> 235
>> 236 config MK7
>> 237 bool "Athlon/Duron/K7"
>> 238 help
>> 239 Select this for an AMD Athlon K7-family processor. Enables use of
>> 240 some extended instructions, and passes appropriate optimization
>> 241 flags to GCC.
>> 242
>> 243 config MK8
>> 244 bool "Opteron/Athlon64/Hammer/K8"
>> 245 help
>> 246 Select this for an AMD Opteron or Athlon64 Hammer-family processor. Enables
>> 247 use of some extended instructions, and passes appropriate optimization
>> 248 flags to GCC.
>> 249
>> 250 config MELAN
>> 251 bool "Elan"
>> 252
>> 253 config MCRUSOE
>> 254 bool "Crusoe"
>> 255 help
>> 256 Select this for a Transmeta Crusoe processor. Treats the processor
>> 257 like a 586 with TSC, and sets some GCC optimization flags (like a
>> 258 Pentium Pro with no alignment requirements).
>> 259
>> 260 config MWINCHIPC6
>> 261 bool "Winchip-C6"
>> 262 help
>> 263 Select this for an IDT Winchip C6 chip. Linux and GCC
>> 264 treat this chip as a 586TSC with some extended instructions
>> 265 and alignment requirements.
>> 266
>> 267 config MWINCHIP2
>> 268 bool "Winchip-2"
>> 269 help
>> 270 Select this for an IDT Winchip-2. Linux and GCC
>> 271 treat this chip as a 586TSC with some extended instructions
>> 272 and alignment requirements.
>> 273
>> 274 config MWINCHIP3D
>> 275 bool "Winchip-2A/Winchip-3"
>> 276 help
>> 277 Select this for an IDT Winchip-2A or 3. Linux and GCC
>> 278 treat this chip as a 586TSC with some extended instructions
>> 279 and alignment reqirements. Also enable out of order memory
>> 280 stores for this CPU, which can increase performance of some
>> 281 operations.
>> 282
>> 283 config MCYRIXIII
>> 284 bool "CyrixIII/VIA-C3"
>> 285 help
>> 286 Select this for a Cyrix III or C3 chip. Presently Linux and GCC
>> 287 treat this chip as a generic 586. Whilst the CPU is 686 class,
>> 288 it lacks the cmov extension which gcc assumes is present when
>> 289 generating 686 code.
>> 290 Note that Nehemiah (Model 9) and above will not boot with this
>> 291 kernel due to them lacking the 3DNow! instructions used in earlier
>> 292 incarnations of the CPU.
>> 293
>> 294 config MVIAC3_2
>> 295 bool "VIA C3-2 (Nehemiah)"
>> 296 help
>> 297 Select this for a VIA C3 "Nehemiah". Selecting this enables usage
>> 298 of SSE and tells gcc to treat the CPU as a 686.
>> 299 Note, this kernel will not boot on older (pre model 9) C3s.
>> 300
>> 301 endchoice
335 302
336 config COMPAT !! 303 config X86_GENERIC
337 bool "Enable support for 32bit binarie !! 304 bool "Generic x86 support"
338 depends on PPC64 !! 305 help
339 default y if !CPU_LITTLE_ENDIAN !! 306 Including some tuning for non selected x86 CPUs too.
340 select ARCH_WANT_OLD_COMPAT_IPC !! 307 when it has moderate overhead. This is intended for generic
341 select COMPAT_OLD_SIGACTION !! 308 distributions kernels.
342 309
343 config SCHED_OMIT_FRAME_POINTER !! 310 #
>> 311 # Define implied options from the CPU selection here
>> 312 #
>> 313 config X86_CMPXCHG
344 bool 314 bool
>> 315 depends on !M386
345 default y 316 default y
346 317
347 config ARCH_MAY_HAVE_PC_FDC !! 318 config X86_XADD
348 bool 319 bool
349 default PCI !! 320 depends on !M386
>> 321 default y
350 322
351 config PPC_UDBG_16550 !! 323 config X86_L1_CACHE_SHIFT
352 bool !! 324 int
>> 325 default "7" if MPENTIUM4 || X86_GENERIC
>> 326 default "4" if MELAN || M486 || M386
>> 327 default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2
>> 328 default "6" if MK7 || MK8
353 329
354 config GENERIC_TBSYNC !! 330 config RWSEM_GENERIC_SPINLOCK
355 bool 331 bool
356 default y if PPC32 && SMP !! 332 depends on M386
>> 333 default y
357 334
358 config AUDIT_ARCH !! 335 config RWSEM_XCHGADD_ALGORITHM
359 bool 336 bool
>> 337 depends on !M386
360 default y 338 default y
361 339
362 config GENERIC_BUG !! 340 config X86_PPRO_FENCE
363 bool 341 bool
>> 342 depends on M686 || M586MMX || M586TSC || M586 || M486 || M386
364 default y 343 default y
365 depends on BUG <<
366 344
367 config GENERIC_BUG_RELATIVE_POINTERS !! 345 config X86_F00F_BUG
368 def_bool y !! 346 bool
369 depends on GENERIC_BUG !! 347 depends on M586MMX || M586TSC || M586 || M486 || M386
>> 348 default y
370 349
371 config SYS_SUPPORTS_APM_EMULATION !! 350 config X86_WP_WORKS_OK
372 default y if PMAC_APM_EMU <<
373 bool 351 bool
>> 352 depends on !M386
>> 353 default y
374 354
375 config EPAPR_BOOT !! 355 config X86_INVLPG
376 bool 356 bool
377 help !! 357 depends on !M386
378 Used to allow a board to specify it !! 358 default y
379 359
380 config DEFAULT_UIMAGE !! 360 config X86_BSWAP
381 bool 361 bool
382 help !! 362 depends on !M386
383 Used to allow a board to specify it !! 363 default y
384 364
385 config ARCH_HIBERNATION_POSSIBLE !! 365 config X86_POPAD_OK
386 bool 366 bool
>> 367 depends on !M386
387 default y 368 default y
388 369
389 config ARCH_SUSPEND_POSSIBLE !! 370 config X86_ALIGNMENT_16
390 def_bool y !! 371 bool
391 depends on ADB_PMU || PPC_EFIKA || PPC !! 372 depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2
392 (PPC_85xx && !PPC_E500MC) | !! 373 default y
393 || 44x <<
394 374
395 config ARCH_SUSPEND_NONZERO_CPU !! 375 config X86_GOOD_APIC
396 def_bool y !! 376 bool
397 depends on PPC_POWERNV || PPC_PSERIES !! 377 depends on MK7 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8
>> 378 default y
398 379
399 config ARCH_HAS_ADD_PAGES !! 380 config X86_INTEL_USERCOPY
400 def_bool y !! 381 bool
401 depends on ARCH_ENABLE_MEMORY_HOTPLUG !! 382 depends on MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7
>> 383 default y
402 384
403 config PPC_DCR_NATIVE !! 385 config X86_USE_PPRO_CHECKSUM
404 bool 386 bool
>> 387 depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2
>> 388 default y
405 389
406 config PPC_DCR_MMIO !! 390 config X86_USE_3DNOW
407 bool 391 bool
>> 392 depends on MCYRIXIII || MK7
>> 393 default y
408 394
409 config PPC_DCR !! 395 config X86_OOSTORE
410 bool 396 bool
411 depends on PPC_DCR_NATIVE || PPC_DCR_M !! 397 depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6
412 default y 398 default y
413 399
414 config PPC_PCI_OF_BUS_MAP !! 400 config HPET_TIMER
415 bool "Use pci_to_OF_bus_map (deprecate !! 401 bool "HPET Timer Support"
416 depends on PPC32 <<
417 depends on PPC_PMAC || PPC_CHRP <<
418 help 402 help
419 This option uses pci_to_OF_bus_map t !! 403 This enables the use of the HPET for the kernel's internal timer.
420 restricts the system to only having !! 404 HPET is the next generation timer replacing legacy 8254s.
421 the "pci-OF-bus-map" property to be !! 405 You can safely choose Y here. However, HPET will only be
>> 406 activated if the platform and the BIOS support this feature.
>> 407 Otherwise the 8254 will be used for timing services.
422 408
423 If unsure, say "N". !! 409 Choose N to continue using the legacy 8254 timer.
424 410
425 config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT !! 411 config HPET_EMULATE_RTC
426 depends on PPC32 !! 412 def_bool HPET_TIMER && RTC=y
427 depends on !PPC_PCI_OF_BUS_MAP !! 413
428 bool "Assign PCI bus numbers from zero !! 414 config SMP
429 default y !! 415 bool "Symmetric multi-processing support"
>> 416 ---help---
>> 417 This enables support for systems with more than one CPU. If you have
>> 418 a system with only one CPU, like most personal computers, say N. If
>> 419 you have a system with more than one CPU, say Y.
>> 420
>> 421 If you say N here, the kernel will run on single and multiprocessor
>> 422 machines, but will use only one CPU of a multiprocessor machine. If
>> 423 you say Y here, the kernel will run on many, but not all,
>> 424 singleprocessor machines. On a singleprocessor machine, the kernel
>> 425 will run faster if you say N here.
>> 426
>> 427 Note that if you say Y here and choose architecture "586" or
>> 428 "Pentium" under "Processor family", the kernel will not work on 486
>> 429 architectures. Similarly, multiprocessor kernels for the "PPro"
>> 430 architecture may not work on all Pentium based boards.
>> 431
>> 432 People using multiprocessor machines who say Y here should also say
>> 433 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 434 Management" code will be disabled if you say Y here.
>> 435
>> 436 See also the <file:Documentation/smp.tex>,
>> 437 <file:Documentation/smp.txt>, <file:Documentation/i386/IO-APIC.txt>,
>> 438 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
>> 439 <http://www.tldp.org/docs.html#howto>.
>> 440
>> 441 If you don't know what to do here, say N.
>> 442
>> 443 config NR_CPUS
>> 444 int "Maximum number of CPUs (2-255)"
>> 445 depends on SMP
>> 446 default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
>> 447 default "8"
430 help 448 help
431 By default on PPC32 were PCI bus num !! 449 This allows you to specify the maximum number of CPUs which this
432 So system could have only 256 PCI bu !! 450 kernel will support. The maximum supported value is 255 and the
433 PCI domains. When this option is ena !! 451 minimum value which makes sense is 2.
434 PCI domain dependent and each PCI co !! 452
435 256 PCI buses, like it is on other L !! 453 This is purely to save memory - each supported CPU adds
>> 454 approximately eight kilobytes to the kernel image.
>> 455
>> 456 config PREEMPT
>> 457 bool "Preemptible Kernel"
>> 458 help
>> 459 This option reduces the latency of the kernel when reacting to
>> 460 real-time or interactive events by allowing a low priority process to
>> 461 be preempted even if it is in kernel mode executing a system call.
>> 462 This allows applications to run more reliably even when the system is
>> 463 under load.
>> 464
>> 465 Say Y here if you are building a kernel for a desktop, embedded
>> 466 or real-time system. Say N if you are unsure.
>> 467
>> 468 config X86_UP_APIC
>> 469 bool "Local APIC support on uniprocessors" if !SMP
>> 470 depends on !(X86_VISWS || X86_VOYAGER)
>> 471 ---help---
>> 472 A local APIC (Advanced Programmable Interrupt Controller) is an
>> 473 integrated interrupt controller in the CPU. If you have a single-CPU
>> 474 system which has a processor with a local APIC, you can say Y here to
>> 475 enable and use it. If you say Y here even though your machine doesn't
>> 476 have a local APIC, then the kernel will still run with no slowdown at
>> 477 all. The local APIC supports CPU-generated self-interrupts (timer,
>> 478 performance counters), and the NMI watchdog which detects hard
>> 479 lockups.
>> 480
>> 481 If you have a system with several CPUs, you do not need to say Y
>> 482 here: the local APIC will be used automatically.
>> 483
>> 484 config X86_UP_IOAPIC
>> 485 bool "IO-APIC support on uniprocessors"
>> 486 depends on !SMP && X86_UP_APIC
>> 487 help
>> 488 An IO-APIC (I/O Advanced Programmable Interrupt Controller) is an
>> 489 SMP-capable replacement for PC-style interrupt controllers. Most
>> 490 SMP systems and a small number of uniprocessor systems have one.
>> 491 If you have a single-CPU system with an IO-APIC, you can say Y here
>> 492 to use it. If you say Y here even though your machine doesn't have
>> 493 an IO-APIC, then the kernel will still run with no slowdown at all.
>> 494
>> 495 If you have a system with several CPUs, you do not need to say Y
>> 496 here: the IO-APIC will be used automatically.
>> 497
>> 498 config X86_LOCAL_APIC
>> 499 bool
>> 500 depends on !SMP && X86_UP_APIC
>> 501 default y
>> 502
>> 503 config X86_IO_APIC
>> 504 bool
>> 505 depends on !SMP && X86_UP_IOAPIC
>> 506 default y
>> 507
>> 508 config X86_TSC
>> 509 bool
>> 510 depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2) && !X86_NUMAQ
>> 511 default y
>> 512
>> 513 config X86_MCE
>> 514 bool "Machine Check Exception"
>> 515 ---help---
>> 516 Machine Check Exception support allows the processor to notify the
>> 517 kernel if it detects a problem (e.g. overheating, component failure).
>> 518 The action the kernel takes depends on the severity of the problem,
>> 519 ranging from a warning message on the console, to halting the machine.
>> 520 Your processor must be a Pentium or newer to support this - check the
>> 521 flags in /proc/cpuinfo for mce. Note that some older Pentium systems
>> 522 have a design flaw which leads to false MCE events - hence MCE is
>> 523 disabled on all P5 processors, unless explicitly enabled with "mce"
>> 524 as a boot argument. Similarly, if MCE is built in and creates a
>> 525 problem on some new non-standard machine, you can boot with "nomce"
>> 526 to disable it. MCE support simply ignores non-MCE processors like
>> 527 the 386 and 486, so nearly everyone can say Y here.
>> 528
>> 529 config X86_MCE_NONFATAL
>> 530 bool "Check for non-fatal errors on AMD Athlon/Duron / Intel Pentium 4"
>> 531 depends on X86_MCE
>> 532 help
>> 533 Enabling this feature starts a timer that triggers every 5 seconds which
>> 534 will look at the machine check registers to see if anything happened.
>> 535 Non-fatal problems automatically get corrected (but still logged).
>> 536 Disable this if you don't want to see these messages.
>> 537 Seeing the messages this option prints out may be indicative of dying hardware,
>> 538 or out-of-spec (ie, overclocked) hardware.
>> 539 This option only does something on certain CPUs.
>> 540 (AMD Athlon/Duron and Intel Pentium 4)
>> 541
>> 542 config X86_MCE_P4THERMAL
>> 543 bool "check for P4 thermal throttling interrupt."
>> 544 depends on X86_MCE && (X86_UP_APIC || SMP)
>> 545 help
>> 546 Enabling this feature will cause a message to be printed when the P4
>> 547 enters thermal throttling.
>> 548
>> 549 config TOSHIBA
>> 550 tristate "Toshiba Laptop support"
>> 551 ---help---
>> 552 This adds a driver to safely access the System Management Mode of
>> 553 the CPU on Toshiba portables with a genuine Toshiba BIOS. It does
>> 554 not work on models with a Phoenix BIOS. The System Management Mode
>> 555 is used to set the BIOS and power saving options on Toshiba portables.
>> 556
>> 557 For information on utilities to make use of this driver see the
>> 558 Toshiba Linux utilities web site at:
>> 559 <http://www.buzzard.org.uk/toshiba/>.
>> 560
>> 561 Say Y if you intend to run this kernel on a Toshiba portable.
>> 562 Say N otherwise.
>> 563
>> 564 config I8K
>> 565 tristate "Dell laptop support"
>> 566 ---help---
>> 567 This adds a driver to safely access the System Management Mode
>> 568 of the CPU on the Dell Inspiron 8000. The System Management Mode
>> 569 is used to read cpu temperature and cooling fan status and to
>> 570 control the fans on the I8K portables.
>> 571
>> 572 This driver has been tested only on the Inspiron 8000 but it may
>> 573 also work with other Dell laptops. You can force loading on other
>> 574 models by passing the parameter `force=1' to the module. Use at
>> 575 your own risk.
>> 576
>> 577 For information on utilities to make use of this driver see the
>> 578 I8K Linux utilities web site at:
>> 579 <http://www.debian.org/~dz/i8k/>
>> 580
>> 581 Say Y if you intend to run this kernel on a Dell Inspiron 8000.
>> 582 Say N otherwise.
>> 583
>> 584 config MICROCODE
>> 585 tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support"
>> 586 ---help---
>> 587 If you say Y here and also to "/dev file system support" in the
>> 588 'File systems' section, you will be able to update the microcode on
>> 589 Intel processors in the IA32 family, e.g. Pentium Pro, Pentium II,
>> 590 Pentium III, Pentium 4, Xeon etc. You will obviously need the
>> 591 actual microcode binary data itself which is not shipped with the
>> 592 Linux kernel.
>> 593
>> 594 For latest news and information on obtaining all the required
>> 595 ingredients for this driver, check:
>> 596 <http://www.urbanmyth.org/microcode/>.
>> 597
>> 598 To compile this driver as a module, choose M here: the
>> 599 module will be called microcode.
>> 600 If you use modprobe or kmod you may also want to add the line
>> 601 'alias char-major-10-184 microcode' to your /etc/modules.conf file.
>> 602
>> 603 config X86_MSR
>> 604 tristate "/dev/cpu/*/msr - Model-specific register support"
>> 605 help
>> 606 This device gives privileged processes access to the x86
>> 607 Model-Specific Registers (MSRs). It is a character device with
>> 608 major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
>> 609 MSR accesses are directed to a specific CPU on multi-processor
>> 610 systems.
>> 611
>> 612 config X86_CPUID
>> 613 tristate "/dev/cpu/*/cpuid - CPU information support"
>> 614 help
>> 615 This device gives processes access to the x86 CPUID instruction to
>> 616 be executed on a specific processor. It is a character device
>> 617 with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
>> 618 /dev/cpu/31/cpuid.
>> 619
>> 620 config EDD
>> 621 tristate "BIOS Enhanced Disk Drive calls determine boot disk (EXPERIMENTAL)"
>> 622 depends on EXPERIMENTAL
>> 623 help
>> 624 Say Y or M here if you want to enable BIOS Enhanced Disk Drive
>> 625 Services real mode BIOS calls to determine which disk
>> 626 BIOS tries boot from. This information is then exported via driverfs.
436 627
437 config PPC_OF_PLATFORM_PCI !! 628 This option is experimental, but believed to be safe,
438 bool !! 629 and most disk controller BIOS vendors do not yet implement this feature.
439 depends on PCI <<
440 depends on PPC64 # not supported on 32 <<
441 630
442 config ARCH_SUPPORTS_UPROBES !! 631 choice
443 def_bool y !! 632 prompt "High Memory Support"
>> 633 default NOHIGHMEM
>> 634
>> 635 config NOHIGHMEM
>> 636 bool "off"
>> 637 ---help---
>> 638 Linux can use up to 64 Gigabytes of physical memory on x86 systems.
>> 639 However, the address space of 32-bit x86 processors is only 4
>> 640 Gigabytes large. That means that, if you have a large amount of
>> 641 physical memory, not all of it can be "permanently mapped" by the
>> 642 kernel. The physical memory that's not permanently mapped is called
>> 643 "high memory".
>> 644
>> 645 If you are compiling a kernel which will never run on a machine with
>> 646 more than 1 Gigabyte total physical RAM, answer "off" here (default
>> 647 choice and suitable for most users). This will result in a "3GB/1GB"
>> 648 split: 3GB are mapped so that each process sees a 3GB virtual memory
>> 649 space and the remaining part of the 4GB virtual memory space is used
>> 650 by the kernel to permanently map as much physical memory as
>> 651 possible.
>> 652
>> 653 If the machine has between 1 and 4 Gigabytes physical RAM, then
>> 654 answer "4GB" here.
>> 655
>> 656 If more than 4 Gigabytes is used then answer "64GB" here. This
>> 657 selection turns Intel PAE (Physical Address Extension) mode on.
>> 658 PAE implements 3-level paging on IA32 processors. PAE is fully
>> 659 supported by Linux, PAE mode is implemented on all recent Intel
>> 660 processors (Pentium Pro and better). NOTE: If you say "64GB" here,
>> 661 then the kernel will not boot on CPUs that don't support PAE!
>> 662
>> 663 The actual amount of total physical memory will either be
>> 664 auto detected or can be forced by using a kernel command line option
>> 665 such as "mem=256M". (Try "man bootparam" or see the documentation of
>> 666 your boot loader (lilo or loadlin) about how to pass options to the
>> 667 kernel at boot time.)
>> 668
>> 669 If unsure, say "off".
>> 670
>> 671 config HIGHMEM4G
>> 672 bool "4GB"
>> 673 help
>> 674 Select this if you have a 32-bit processor and between 1 and 4
>> 675 gigabytes of physical RAM.
>> 676
>> 677 config HIGHMEM64G
>> 678 bool "64GB"
>> 679 help
>> 680 Select this if you have a 32-bit processor and more than 4
>> 681 gigabytes of physical RAM.
>> 682
>> 683 endchoice
444 684
445 config PPC_ADV_DEBUG_REGS !! 685 config HIGHMEM
446 bool 686 bool
447 depends on BOOKE !! 687 depends on HIGHMEM64G || HIGHMEM4G
448 default y 688 default y
449 689
450 config PPC_ADV_DEBUG_IACS !! 690 config X86_PAE
451 int !! 691 bool
452 depends on PPC_ADV_DEBUG_REGS !! 692 depends on HIGHMEM64G
453 default 4 if 44x !! 693 default y
454 default 2 <<
455 694
456 config PPC_ADV_DEBUG_DACS !! 695 # Common NUMA Features
457 int !! 696 config NUMA
458 depends on PPC_ADV_DEBUG_REGS !! 697 bool "Numa Memory Allocation Support"
459 default 2 !! 698 depends on SMP && HIGHMEM64G && (X86_PC || X86_NUMAQ || X86_GENERICARCH || (X86_SUMMIT && ACPI && !ACPI_HT_ONLY))
>> 699 default n if X86_PC
>> 700 default y if (X86_NUMAQ || X86_SUMMIT)
>> 701
>> 702 # Need comments to help the hapless user trying to turn on NUMA support
>> 703 comment "NUMA (NUMA-Q) requires SMP, 64GB highmem support"
>> 704 depends on X86_NUMAQ && (!HIGHMEM64G || !SMP)
460 705
461 config PPC_ADV_DEBUG_DVCS !! 706 comment "NUMA (Summit) requires SMP, 64GB highmem support, full ACPI"
462 int !! 707 depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI || ACPI_HT_ONLY)
463 depends on PPC_ADV_DEBUG_REGS <<
464 default 2 if 44x <<
465 default 0 <<
466 708
467 config PPC_ADV_DEBUG_DAC_RANGE !! 709 config DISCONTIGMEM
468 bool 710 bool
469 depends on PPC_ADV_DEBUG_REGS && 44x !! 711 depends on NUMA
470 default y 712 default y
471 713
472 config PPC_DAWR !! 714 config HAVE_ARCH_BOOTMEM_NODE
473 bool 715 bool
>> 716 depends on NUMA
>> 717 default y
474 718
475 config PGTABLE_LEVELS !! 719 config HIGHPTE
476 int !! 720 bool "Allocate 3rd-level pagetables from highmem"
477 default 2 if !PPC64 !! 721 depends on HIGHMEM4G || HIGHMEM64G
478 default 4 !! 722 help
>> 723 The VM uses one page table entry for each page of physical memory.
>> 724 For systems with a lot of RAM, this can be wasteful of precious
>> 725 low memory. Setting this option will put user-space page table
>> 726 entries in high memory.
479 727
480 source "arch/powerpc/sysdev/Kconfig" !! 728 config MATH_EMULATION
481 source "arch/powerpc/platforms/Kconfig" !! 729 bool "Math emulation"
>> 730 ---help---
>> 731 Linux can emulate a math coprocessor (used for floating point
>> 732 operations) if you don't have one. 486DX and Pentium processors have
>> 733 a math coprocessor built in, 486SX and 386 do not, unless you added
>> 734 a 487DX or 387, respectively. (The messages during boot time can
>> 735 give you some hints here ["man dmesg"].) Everyone needs either a
>> 736 coprocessor or this emulation.
>> 737
>> 738 If you don't have a math coprocessor, you need to say Y here; if you
>> 739 say Y here even though you have a coprocessor, the coprocessor will
>> 740 be used nevertheless. (This behavior can be changed with the kernel
>> 741 command line option "no387", which comes handy if your coprocessor
>> 742 is broken. Try "man bootparam" or see the documentation of your boot
>> 743 loader (lilo or loadlin) about how to pass options to the kernel at
>> 744 boot time.) This means that it is a good idea to say Y here if you
>> 745 intend to use this kernel on different machines.
>> 746
>> 747 More information about the internals of the Linux math coprocessor
>> 748 emulation can be found in <file:arch/i386/math-emu/README>.
>> 749
>> 750 If you are not sure, say Y; apart from resulting in a 66 KB bigger
>> 751 kernel, it won't hurt.
>> 752
>> 753 config MTRR
>> 754 bool "MTRR (Memory Type Range Register) support"
>> 755 ---help---
>> 756 On Intel P6 family processors (Pentium Pro, Pentium II and later)
>> 757 the Memory Type Range Registers (MTRRs) may be used to control
>> 758 processor access to memory ranges. This is most useful if you have
>> 759 a video (VGA) card on a PCI or AGP bus. Enabling write-combining
>> 760 allows bus write transfers to be combined into a larger transfer
>> 761 before bursting over the PCI/AGP bus. This can increase performance
>> 762 of image write operations 2.5 times or more. Saying Y here creates a
>> 763 /proc/mtrr file which may be used to manipulate your processor's
>> 764 MTRRs. Typically the X server should use this.
>> 765
>> 766 This code has a reasonably generic interface so that similar
>> 767 control registers on other processors can be easily supported
>> 768 as well:
>> 769
>> 770 The Cyrix 6x86, 6x86MX and M II processors have Address Range
>> 771 Registers (ARRs) which provide a similar functionality to MTRRs. For
>> 772 these, the ARRs are used to emulate the MTRRs.
>> 773 The AMD K6-2 (stepping 8 and above) and K6-3 processors have two
>> 774 MTRRs. The Centaur C6 (WinChip) has 8 MCRs, allowing
>> 775 write-combining. All of these processors are supported by this code
>> 776 and it makes sense to say Y here if you have one of them.
>> 777
>> 778 Saying Y here also fixes a problem with buggy SMP BIOSes which only
>> 779 set the MTRRs for the boot CPU and not for the secondary CPUs. This
>> 780 can lead to all sorts of problems, so it's good to say Y here.
>> 781
>> 782 You can safely say Y even if your machine doesn't have MTRRs, you'll
>> 783 just add about 9 KB to your kernel.
>> 784
>> 785 See <file:Documentation/mtrr.txt> for more information.
>> 786
>> 787 config HAVE_DEC_LOCK
>> 788 bool
>> 789 depends on (SMP || PREEMPT) && X86_CMPXCHG
>> 790 default y
>> 791
>> 792 # turning this on wastes a bunch of space.
>> 793 # Summit needs it only when NUMA is on
>> 794 config BOOT_IOREMAP
>> 795 bool
>> 796 depends on ((X86_SUMMIT || X86_GENERICARCH) && NUMA)
>> 797 default y
482 798
483 menu "Kernel options" !! 799 endmenu
484 800
485 config HIGHMEM <<
486 bool "High memory support" <<
487 depends on PPC32 <<
488 select KMAP_LOCAL <<
489 801
490 source "kernel/Kconfig.hz" !! 802 menu "Power management options (ACPI, APM)"
>> 803 depends on !X86_VOYAGER
491 804
492 config MATH_EMULATION !! 805 source kernel/power/Kconfig
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). <<
507 806
508 choice !! 807 source "drivers/acpi/Kconfig"
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. <<
519 808
520 config MATH_EMULATION_HW_UNIMPLEMENTED !! 809 menu "APM (Advanced Power Management) BIOS Support"
521 bool "Just emulate the FPU unimplement !! 810 depends on PM
522 help !! 811
523 Select this if you know there does h !! 812 config APM
524 SoC, but some floating point instruc !! 813 tristate "APM (Advanced Power Management) BIOS support"
>> 814 depends on PM
>> 815 ---help---
>> 816 APM is a BIOS specification for saving power using several different
>> 817 techniques. This is mostly useful for battery powered laptops with
>> 818 APM compliant BIOSes. If you say Y here, the system time will be
>> 819 reset after a RESUME operation, the /proc/apm device will provide
>> 820 battery status information, and user-space programs will receive
>> 821 notification of APM "events" (e.g. battery status change).
>> 822
>> 823 If you select "Y" here, you can disable actual use of the APM
>> 824 BIOS by passing the "apm=off" option to the kernel at boot time.
>> 825
>> 826 Note that the APM support is almost completely disabled for
>> 827 machines with more than one CPU.
>> 828
>> 829 In order to use APM, you will need supporting software. For location
>> 830 and more information, read <file:Documentation/pm.txt> and the
>> 831 Battery Powered Linux mini-HOWTO, available from
>> 832 <http://www.tldp.org/docs.html#howto>.
>> 833
>> 834 This driver does not spin down disk drives (see the hdparm(8)
>> 835 manpage ("man 8 hdparm") for that), and it doesn't turn off
>> 836 VESA-compliant "green" monitors.
>> 837
>> 838 This driver does not support the TI 4000M TravelMate and the ACER
>> 839 486/DX4/75 because they don't have compliant BIOSes. Many "green"
>> 840 desktop machines also don't have compliant BIOSes, and this driver
>> 841 may cause those machines to panic during the boot phase.
>> 842
>> 843 Generally, if you don't have a battery in your machine, there isn't
>> 844 much point in using this driver and you should say N. If you get
>> 845 random kernel OOPSes or reboots that don't seem to be related to
>> 846 anything, try disabling/enabling this option (or disabling/enabling
>> 847 APM in your BIOS).
>> 848
>> 849 Some other things you should try when experiencing seemingly random,
>> 850 "weird" problems:
>> 851
>> 852 1) make sure that you have enough swap space and that it is
>> 853 enabled.
>> 854 2) pass the "no-hlt" option to the kernel
>> 855 3) switch on floating point emulation in the kernel and pass
>> 856 the "no387" option to the kernel
>> 857 4) pass the "floppy=nodma" option to the kernel
>> 858 5) pass the "mem=4M" option to the kernel (thereby disabling
>> 859 all but the first 4 MB of RAM)
>> 860 6) make sure that the CPU is not over clocked.
>> 861 7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
>> 862 8) disable the cache from your BIOS settings
>> 863 9) install a fan for the video card or exchange video RAM
>> 864 10) install a better fan for the CPU
>> 865 11) exchange RAM chips
>> 866 12) exchange the motherboard.
>> 867
>> 868 To compile this driver as a module, choose M here: the
>> 869 module will be called apm.
>> 870
>> 871 config APM_IGNORE_USER_SUSPEND
>> 872 bool "Ignore USER SUSPEND"
>> 873 depends on APM
>> 874 help
>> 875 This option will ignore USER SUSPEND requests. On machines with a
>> 876 compliant APM BIOS, you want to say N. However, on the NEC Versa M
>> 877 series notebooks, it is necessary to say Y because of a BIOS bug.
>> 878
>> 879 config APM_DO_ENABLE
>> 880 bool "Enable PM at boot time"
>> 881 depends on APM
>> 882 ---help---
>> 883 Enable APM features at boot time. From page 36 of the APM BIOS
>> 884 specification: "When disabled, the APM BIOS does not automatically
>> 885 power manage devices, enter the Standby State, enter the Suspend
>> 886 State, or take power saving steps in response to CPU Idle calls."
>> 887 This driver will make CPU Idle calls when Linux is idle (unless this
>> 888 feature is turned off -- see "Do CPU IDLE calls", below). This
>> 889 should always save battery power, but more complicated APM features
>> 890 will be dependent on your BIOS implementation. You may need to turn
>> 891 this option off if your computer hangs at boot time when using APM
>> 892 support, or if it beeps continuously instead of suspending. Turn
>> 893 this off if you have a NEC UltraLite Versa 33/C or a Toshiba
>> 894 T400CDT. This is off by default since most machines do fine without
>> 895 this feature.
>> 896
>> 897 config APM_CPU_IDLE
>> 898 bool "Make CPU Idle calls when idle"
>> 899 depends on APM
>> 900 help
>> 901 Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
>> 902 On some machines, this can activate improved power savings, such as
>> 903 a slowed CPU clock rate, when the machine is idle. These idle calls
>> 904 are made after the idle loop has run for some length of time (e.g.,
>> 905 333 mS). On some machines, this will cause a hang at boot time or
>> 906 whenever the CPU becomes idle. (On machines with more than one CPU,
>> 907 this option does nothing.)
>> 908
>> 909 config APM_DISPLAY_BLANK
>> 910 bool "Enable console blanking using APM"
>> 911 depends on APM
>> 912 help
>> 913 Enable console blanking using the APM. Some laptops can use this to
>> 914 turn off the LCD backlight when the screen blanker of the Linux
>> 915 virtual console blanks the screen. Note that this is only used by
>> 916 the virtual console screen blanker, and won't turn off the backlight
>> 917 when using the X Window system. This also doesn't have anything to
>> 918 do with your VESA-compliant power-saving monitor. Further, this
>> 919 option doesn't work for all laptops -- it might not turn off your
>> 920 backlight at all, or it might print a lot of errors to the console,
>> 921 especially if you are using gpm.
>> 922
>> 923 config APM_RTC_IS_GMT
>> 924 bool "RTC stores time in GMT"
>> 925 depends on APM
>> 926 help
>> 927 Say Y here if your RTC (Real Time Clock a.k.a. hardware clock)
>> 928 stores the time in GMT (Greenwich Mean Time). Say N if your RTC
>> 929 stores localtime.
>> 930
>> 931 It is in fact recommended to store GMT in your RTC, because then you
>> 932 don't have to worry about daylight savings time changes. The only
>> 933 reason not to use GMT in your RTC is if you also run a broken OS
>> 934 that doesn't understand GMT.
>> 935
>> 936 config APM_ALLOW_INTS
>> 937 bool "Allow interrupts during APM BIOS calls"
>> 938 depends on APM
>> 939 help
>> 940 Normally we disable external interrupts while we are making calls to
>> 941 the APM BIOS as a measure to lessen the effects of a badly behaving
>> 942 BIOS implementation. The BIOS should reenable interrupts if it
>> 943 needs to. Unfortunately, some BIOSes do not -- especially those in
>> 944 many of the newer IBM Thinkpads. If you experience hangs when you
>> 945 suspend, try setting this to Y. Otherwise, say N.
>> 946
>> 947 config APM_REAL_MODE_POWER_OFF
>> 948 bool "Use real mode APM BIOS call to power off"
>> 949 depends on APM
>> 950 help
>> 951 Use real mode APM BIOS calls to switch off the computer. This is
>> 952 a work-around for a number of buggy BIOSes. Switch this option on if
>> 953 your computer crashes instead of powering off properly.
525 954
526 endchoice !! 955 endmenu
527 956
528 config PPC_TRANSACTIONAL_MEM !! 957 source "arch/i386/kernel/cpu/cpufreq/Kconfig"
529 bool "Transactional Memory support for <<
530 depends on PPC_BOOK3S_64 <<
531 depends on SMP <<
532 select ALTIVEC <<
533 select VSX <<
534 help <<
535 Support user-mode Transactional Memo <<
536 958
537 config PPC_UV !! 959 endmenu
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 <<
572 config HOTPLUG_CPU <<
573 bool "Support for enabling/disabling C <<
574 depends on SMP && (PPC_PSERIES || \ <<
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. <<
590 960
591 config PPC_QUEUED_SPINLOCKS <<
592 bool "Queued spinlocks" if EXPERT <<
593 depends on SMP <<
594 default PPC_BOOK3S_64 <<
595 help <<
596 Say Y here to use queued spinlocks w <<
597 fairness on large SMP and NUMA syste <<
598 performance. <<
599 <<
600 config ARCH_CPU_PROBE_RELEASE <<
601 def_bool y <<
602 depends on HOTPLUG_CPU <<
603 <<
604 config PPC64_SUPPORTS_MEMORY_FAILURE <<
605 bool "Add support for memory hwpoison" <<
606 depends on PPC_BOOK3S_64 <<
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 <<
619 config ARCH_SELECTS_KEXEC_FILE <<
620 def_bool y <<
621 depends on KEXEC_FILE <<
622 select KEXEC_ELF <<
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 <<
633 This builds the kernel image using t <<
634 V2 ABI Specification", which has a r <<
635 function calls. This internal kernel <<
636 userspace compatibility. <<
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 <<
696 config FA_DUMP <<
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. <<
727 961
728 config IRQ_ALL_CPUS !! 962 menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
729 bool "Distribute interrupts on all CPU <<
730 depends on SMP <<
731 help <<
732 This option gives the kernel permiss <<
733 multiple CPUs. Saying N here will r <<
734 CPU. Generally saying Y is safe, al <<
735 reported with SMP Power Macintoshes <<
736 963
737 config NUMA !! 964 config X86_VISWS_APIC
738 bool "NUMA Memory Allocation and Sched !! 965 bool
739 depends on PPC64 && SMP !! 966 depends on X86_VISWS
740 default y if PPC_PSERIES || PPC_POWERN !! 967 default y
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. <<
748 968
749 config NODES_SHIFT !! 969 config X86_LOCAL_APIC
750 int !! 970 bool
751 default "8" if PPC64 !! 971 depends on (X86_VISWS || SMP) && !X86_VOYAGER
752 default "4" !! 972 default y
753 depends on NUMA <<
754 973
755 config HAVE_MEMORYLESS_NODES !! 974 config X86_IO_APIC
756 def_bool y !! 975 bool
757 depends on NUMA !! 976 depends on SMP && !(X86_VISWS || X86_VOYAGER)
>> 977 default y
758 978
759 config ARCH_SELECT_MEMORY_MODEL !! 979 config PCI
760 def_bool y !! 980 bool "PCI support" if !X86_VISWS
761 depends on PPC64 !! 981 depends on !X86_VOYAGER
762 !! 982 default y if X86_VISWS
763 config ARCH_FLATMEM_ENABLE !! 983 help
764 def_bool y !! 984 Find out whether you have a PCI motherboard. PCI is the name of a
765 depends on (PPC64 && !NUMA) || PPC32 !! 985 bus system, i.e. the way the CPU talks to the other stuff inside
766 !! 986 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
767 config ARCH_SPARSEMEM_ENABLE !! 987 VESA. If you have PCI, say Y, otherwise N.
768 def_bool y !! 988
769 depends on PPC64 !! 989 The PCI-HOWTO, available from
770 select SPARSEMEM_VMEMMAP_ENABLE !! 990 <http://www.tldp.org/docs.html#howto>, contains valuable
771 !! 991 information about which PCI hardware does work under Linux and which
772 config ARCH_SPARSEMEM_DEFAULT !! 992 doesn't.
773 def_bool y <<
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 <<
786 993
787 choice 994 choice
788 prompt "Page size" !! 995 prompt "PCI access mode"
789 default PPC_64K_PAGES if PPC_BOOK3S_64 !! 996 depends on PCI && !X86_VISWS
790 default PPC_4K_PAGES !! 997 default PCI_GOANY
791 help !! 998
792 Select the kernel logical page size. !! 999 config PCI_GOBIOS
793 will reduce software overhead at eac !! 1000 bool "BIOS"
794 hardware prefetch mechanisms to be m !! 1001 ---help---
795 larger dma transfers increasing IO e !! 1002 On PCI systems, the BIOS can be used to detect the PCI devices and
796 overhead. However the utilization of !! 1003 determine their configuration. However, some old PCI motherboards
797 For example, each cached file will u !! 1004 have BIOS bugs and may crash if this is done. Also, some embedded
798 page size to hold its contents and t !! 1005 PCI-based systems don't have any BIOS at all. Linux can also try to
799 end of file and the end of page is w !! 1006 detect the PCI hardware directly without using the BIOS.
800 !! 1007
801 Some dedicated systems, such as soft !! 1008 With this option, you can specify how Linux should detect the PCI
802 accelerated calculations, have shown !! 1009 devices. If you choose "BIOS", the BIOS will be used, if you choose
803 !! 1010 "Direct", the BIOS won't be used, and if you choose "Any", the
804 If you configure a 64 bit kernel for !! 1011 kernel will try the direct access method and falls back to the BIOS
805 processor does not support them, the !! 1012 if that doesn't work. If unsure, go with the default, which is
806 them with 4k pages, loading them on !! 1013 "Any".
807 reduced software overhead and larger !! 1014
808 For the 32 bit kernel, a large page !! 1015 config PCI_GODIRECT
809 unless it is supported by the config !! 1016 bool "Direct"
810 !! 1017
811 If unsure, choose 4K_PAGES. !! 1018 config PCI_GOANY
812 !! 1019 bool "Any"
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 1020
841 endchoice 1021 endchoice
842 1022
843 config THREAD_SHIFT !! 1023 config PCI_BIOS
844 int "Thread shift" if EXPERT !! 1024 bool
845 range 13 15 !! 1025 depends on !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
846 default "15" if PPC_256K_PAGES !! 1026 default y
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 <<
889 config ARCH_FORCE_MAX_ORDER <<
890 int "Order of maximal physically conti <<
891 range 7 8 if PPC64 && PPC_64K_PAGES <<
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 <<
904 The kernel page allocator limits the <<
905 contiguous allocations. The limit is <<
906 defines the maximal power of two of <<
907 allocated as a single contiguous blo <<
908 overriding the default setting when <<
909 large blocks of physically contiguou <<
910 <<
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. <<
916 <<
917 config PPC_SUBPAGE_PROT <<
918 bool "Support setting protections for <<
919 default n <<
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 <<
943 config SCHED_SMT <<
944 bool "SMT (Hyperthreading) scheduler s <<
945 depends on PPC64 && SMP <<
946 help <<
947 SMT scheduler support improves the C <<
948 when dealing with POWER5 cpus at a c <<
949 overhead in some places. If unsure s <<
950 <<
951 config PPC_DENORMALISATION <<
952 bool "PowerPC denormalisation exceptio <<
953 depends on PPC_BOOK3S_64 <<
954 default "y" if PPC_POWERNV <<
955 help <<
956 Add support for handling denormalisa <<
957 values. Useful for bare metal only. <<
958 <<
959 config CMDLINE <<
960 string "Initial kernel command string" <<
961 default "" <<
962 help <<
963 On some platforms, there is currentl <<
964 pass arguments to the kernel. For th <<
965 some command-line options at build t <<
966 most cases you will need to specify <<
967 1027
968 choice !! 1028 config PCI_DIRECT
969 prompt "Kernel command line type" !! 1029 bool
970 depends on CMDLINE != "" !! 1030 depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
971 default CMDLINE_FROM_BOOTLOADER !! 1031 default y
972 <<
973 config CMDLINE_FROM_BOOTLOADER <<
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 1032
994 endchoice !! 1033 source "drivers/pci/Kconfig"
995 1034
996 config EXTRA_TARGETS !! 1035 config ISA
997 string "Additional default image types !! 1036 bool "ISA support"
>> 1037 depends on !(X86_VOYAGER || X86_VISWS)
998 help 1038 help
999 List additional targets to be built !! 1039 Find out whether you have ISA slots on your motherboard. ISA is the
1000 by spaces). This is useful for tar !! 1040 name of a bus system, i.e. the way the CPU talks to the other stuff
1001 files in the .dts directory. !! 1041 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 1042 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 1043 newer boards don't support it. If you have ISA, say Y, otherwise N.
>> 1044
>> 1045 config EISA
>> 1046 bool "EISA support"
>> 1047 depends on ISA
>> 1048 ---help---
>> 1049 The Extended Industry Standard Architecture (EISA) bus was
>> 1050 developed as an open alternative to the IBM MicroChannel bus.
1002 1051
1003 Targets in this list will be build !! 1052 The EISA bus provided some of the features of the IBM MicroChannel
1004 target, or when the user does a 'ma !! 1053 bus while maintaining backward compatibility with cards made for
1005 'make zImage.initrd'. !! 1054 the older ISA bus. The EISA bus saw limited use between 1988 and
>> 1055 1995 when it was made obsolete by the PCI bus.
1006 1056
1007 If unsure, leave blank !! 1057 Say Y here if you are building a kernel for an EISA-based machine.
1008 1058
1009 config ARCH_WANTS_FREEZER_CONTROL !! 1059 Otherwise, say N.
1010 def_bool y <<
1011 depends on ADB_PMU <<
1012 1060
1013 source "kernel/power/Kconfig" !! 1061 source "drivers/eisa/Kconfig"
1014 1062
1015 config PPC_MEM_KEYS !! 1063 config MCA
1016 prompt "PowerPC Memory Protection Key !! 1064 bool "MCA support"
1017 def_bool y !! 1065 depends on !(X86_VISWS || X86_VOYAGER)
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 1066 help
1023 Memory Protection Keys provides a m !! 1067 MicroChannel Architecture is found in some IBM PS/2 machines and
1024 page-based protections, but without !! 1068 laptops. It is a bus system similar to PCI or ISA. See
1025 page tables when an application cha !! 1069 <file:Documentation/mca.txt> (and especially the web page given
>> 1070 there) before attempting to build an MCA bus kernel.
1026 1071
1027 For details, see Documentation/core !! 1072 config MCA
>> 1073 depends on X86_VOYAGER
>> 1074 default y if X86_VOYAGER
1028 1075
1029 If unsure, say y. !! 1076 source "drivers/mca/Kconfig"
1030 1077
1031 config ARCH_PKEY_BITS !! 1078 config SCx200
1032 int !! 1079 tristate "NatSemi SCx200 support"
1033 default 5 !! 1080 depends on !X86_VOYAGER
>> 1081 help
>> 1082 This provides basic support for the National Semiconductor SCx200
>> 1083 processor. Right now this is just a driver for the GPIO pins.
1034 1084
1035 config PPC_SECURE_BOOT !! 1085 If you don't know what to do here, say N.
1036 prompt "Enable secure boot support" !! 1086
1037 bool !! 1087 This support is also available as a module. If compiled as a
1038 depends on PPC_POWERNV || PPC_PSERIES !! 1088 module, it will be called scx200.
1039 depends on IMA_ARCH_POLICY !! 1089
1040 imply IMA_SECURE_AND_OR_TRUSTED_BOOT !! 1090 config HOTPLUG
1041 select PSERIES_PLPKS if PPC_PSERIES !! 1091 bool "Support for hot-pluggable devices"
1042 help !! 1092 ---help---
1043 Systems with firmware secure boot e !! 1093 Say Y here if you want to plug devices into your computer while
1044 policies to extend secure boot to t !! 1094 the system is running, and be able to use them quickly. In many
1045 to enable OS secure boot on systems !! 1095 cases, the devices can likewise be unplugged at any time too.
1046 it. If in doubt say N. !! 1096
1047 !! 1097 One well known example of this is PCMCIA- or PC-cards, credit-card
1048 config PPC_SECVAR_SYSFS !! 1098 size devices such as network cards, modems or hard drives which are
1049 bool "Enable sysfs interface for POWE !! 1099 plugged into slots found on all modern laptop computers. Another
1050 default y !! 1100 example, used on modern desktops as well as laptops, is USB.
1051 depends on PPC_SECURE_BOOT !! 1101
1052 depends on SYSFS !! 1102 Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
1053 help !! 1103 software (at <http://linux-hotplug.sourceforge.net/>) and install it.
1054 POWER secure variables are managed !! 1104 Then your kernel will automatically call out to a user mode "policy
1055 These variables are exposed to user !! 1105 agent" (/sbin/hotplug) to load modules and set up software needed
1056 read/write operations on these vari !! 1106 to use devices as you hotplug them.
1057 secure boot enabled and want to exp !! 1107
>> 1108 source "drivers/pcmcia/Kconfig"
>> 1109
>> 1110 source "drivers/pci/hotplug/Kconfig"
1058 1111
1059 endmenu 1112 endmenu
1060 1113
1061 config ISA_DMA_API <<
1062 bool <<
1063 default PCI <<
1064 1114
1065 menu "Bus options" !! 1115 menu "Executable file formats"
1066 1116
1067 config ISA !! 1117 source "fs/Kconfig.binfmt"
1068 bool "Support for ISA-bus hardware" <<
1069 depends on PPC_CHRP <<
1070 select PPC_I8259 <<
1071 help <<
1072 Find out whether you have ISA slots <<
1073 name of a bus system, i.e. the way <<
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 1118
1078 config GENERIC_ISA_DMA !! 1119 endmenu
1079 bool <<
1080 depends on ISA_DMA_API <<
1081 default y <<
1082 1120
1083 config PPC_INDIRECT_PCI !! 1121 source "drivers/Kconfig"
1084 bool <<
1085 depends on PCI <<
1086 default y if 44x <<
1087 1122
1088 config SBUS !! 1123 source "fs/Kconfig"
1089 bool <<
1090 1124
1091 config FSL_SOC !! 1125 source "arch/i386/oprofile/Kconfig"
1092 bool <<
1093 1126
1094 config FSL_PCI <<
1095 bool <<
1096 select ARCH_HAS_DMA_SET_MASK <<
1097 select PPC_INDIRECT_PCI <<
1098 select PCI_QUIRKS <<
1099 1127
1100 config FSL_PMC !! 1128 menu "Kernel hacking"
1101 bool !! 1129
1102 default y !! 1130 config DEBUG_KERNEL
1103 depends on SUSPEND && (PPC_85xx || PP !! 1131 bool "Kernel debugging"
1104 help 1132 help
1105 Freescale MPC85xx/MPC86xx power man !! 1133 Say Y here if you are developing drivers or trying to debug and
1106 (suspend/resume). For MPC83xx see p !! 1134 identify kernel problems.
1107 1135
1108 config PPC4xx_CPM !! 1136 config DEBUG_STACKOVERFLOW
1109 bool !! 1137 bool "Check for stack overflows"
1110 default y !! 1138 depends on DEBUG_KERNEL
1111 depends on SUSPEND && 44x !! 1139
>> 1140 config DEBUG_SLAB
>> 1141 bool "Debug memory allocations"
>> 1142 depends on DEBUG_KERNEL
1112 help 1143 help
1113 PPC4xx Clock Power Management (CPM) !! 1144 Say Y here to have the kernel do limited verification on memory
1114 It also enables support for two dif !! 1145 allocation as well as poisoning memory on free to catch use of freed
1115 and idle-doze). !! 1146 memory.
1116 1147
1117 config FSL_LBC !! 1148 config DEBUG_IOVIRT
1118 bool "Freescale Local Bus support" !! 1149 bool "Memory mapped I/O debugging"
>> 1150 depends on DEBUG_KERNEL
1119 help 1151 help
1120 Enables reporting of errors from th !! 1152 Say Y here to get warned whenever an attempt is made to do I/O on
1121 controller. Also contains some com !! 1153 obviously invalid addresses such as those generated when ioremap()
1122 drivers for specific local bus peri !! 1154 calls are forgotten. Memory mapped I/O will go through an extra
>> 1155 check to catch access to unmapped ISA addresses, an access method
>> 1156 that can still be used by old drivers that are being ported from
>> 1157 2.0/2.2.
1123 1158
1124 config FSL_GTM !! 1159 config MAGIC_SYSRQ
1125 bool !! 1160 bool "Magic SysRq key"
1126 depends on PPC_83xx || QUICC_ENGINE | !! 1161 depends on DEBUG_KERNEL
1127 help 1162 help
1128 Freescale General-purpose Timers su !! 1163 If you say Y here, you will have some control over the system even
>> 1164 if the system crashes for example during kernel debugging (e.g., you
>> 1165 will be able to flush the buffer cache to disk, reboot the system
>> 1166 immediately or dump some status information). This is accomplished
>> 1167 by pressing various keys while holding SysRq (Alt+PrintScreen). It
>> 1168 also works on a serial console (on PC hardware at least), if you
>> 1169 send a BREAK and then within 5 seconds a command keypress. The
>> 1170 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
>> 1171 unless you really know what this hack does.
1129 1172
1130 config FSL_RIO !! 1173 config DEBUG_SPINLOCK
1131 bool "Freescale Embedded SRIO Control !! 1174 bool "Spinlock debugging"
1132 depends on RAPIDIO = y && HAVE_RAPIDI !! 1175 depends on DEBUG_KERNEL
1133 default "n" <<
1134 help 1176 help
1135 Include support for RapidIO control !! 1177 Say Y here and build SMP to catch missing spinlock initialization
1136 processors (MPC8548, MPC8641, etc). !! 1178 and certain other kinds of spinlock errors commonly made. This is
>> 1179 best used in conjunction with the NMI watchdog so that spinlock
>> 1180 deadlocks are also debuggable.
1137 1181
1138 endmenu !! 1182 config DEBUG_PAGEALLOC
>> 1183 bool "Page alloc debugging"
>> 1184 depends on DEBUG_KERNEL
>> 1185 help
>> 1186 Unmap pages from the kernel linear mapping after free_pages().
>> 1187 This results in a large slowdown, but helps to find certain types
>> 1188 of memory corruptions.
1139 1189
1140 config NONSTATIC_KERNEL !! 1190 config DEBUG_HIGHMEM
1141 bool !! 1191 bool "Highmem debugging"
>> 1192 depends on DEBUG_KERNEL && HIGHMEM
>> 1193 help
>> 1194 This options enables addition error checking for high memory systems.
>> 1195 Disable for production systems.
1142 1196
1143 menu "Advanced setup" !! 1197 config DEBUG_INFO
1144 depends on PPC32 !! 1198 bool "Compile the kernel with debug info"
>> 1199 depends on DEBUG_KERNEL
>> 1200 help
>> 1201 If you say Y here the resulting kernel image will include
>> 1202 debugging info resulting in a larger kernel image.
>> 1203 Say Y here only if you plan to use gdb to debug the kernel.
>> 1204 If you don't debug the kernel, you can say N.
>> 1205
>> 1206 config DEBUG_SPINLOCK_SLEEP
>> 1207 bool "Sleep-inside-spinlock checking"
>> 1208 help
>> 1209 If you say Y here, various routines which may sleep will become very
>> 1210 noisy if they are called with a spinlock held.
1145 1211
1146 config ADVANCED_OPTIONS !! 1212 config FRAME_POINTER
1147 bool "Prompt for advanced kernel conf !! 1213 bool "Compile the kernel with frame pointers"
1148 help 1214 help
1149 This option will enable prompting f !! 1215 If you say Y here the resulting kernel image will be slightly larger
1150 configuration options. These optio !! 1216 and slower, but it will give very useful debugging information.
1151 work if they are set incorrectly, b !! 1217 If you don't debug the kernel, you can say N, but we may not be able
1152 aspects of kernel memory management !! 1218 to solve problems without frame pointers.
>> 1219
>> 1220 config X86_EXTRA_IRQS
>> 1221 bool
>> 1222 depends on X86_LOCAL_APIC || X86_VOYAGER
>> 1223 default y
1153 1224
1154 Unless you know what you are doing, !! 1225 config X86_FIND_SMP_CONFIG
>> 1226 bool
>> 1227 depends on X86_LOCAL_APIC || X86_VOYAGER
>> 1228 default y
1155 1229
1156 comment "Default settings for advanced config !! 1230 config X86_MPPARSE
1157 depends on !ADVANCED_OPTIONS !! 1231 bool
>> 1232 depends on X86_LOCAL_APIC && !X86_VISWS
>> 1233 default y
1158 1234
1159 config LOWMEM_SIZE_BOOL !! 1235 endmenu
1160 bool "Set maximum low memory" <<
1161 depends on ADVANCED_OPTIONS <<
1162 help <<
1163 This option allows you to set the m <<
1164 will be used as "low memory", that <<
1165 access directly, without having to <<
1166 This can be useful in optimizing th <<
1167 memory. <<
1168 1236
1169 Say N here unless you know what you !! 1237 source "security/Kconfig"
1170 1238
1171 config LOWMEM_SIZE !! 1239 source "crypto/Kconfig"
1172 hex "Maximum low memory size (in byte <<
1173 default "0x30000000" <<
1174 <<
1175 config LOWMEM_CAM_NUM_BOOL <<
1176 bool "Set number of CAMs to use to ma <<
1177 depends on ADVANCED_OPTIONS && PPC_85 <<
1178 help <<
1179 This option allows you to set the m <<
1180 will be used to map low memory. Th <<
1181 available and even more limited num <<
1182 However, using more entries will al <<
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 <<
1195 config DYNAMIC_MEMSTART <<
1196 bool "Enable page aligned dynamic loa <<
1197 depends on ADVANCED_OPTIONS && FLATME <<
1198 select NONSTATIC_KERNEL <<
1199 help <<
1200 This option enables the kernel to b <<
1201 physical address. The kernel create <<
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 <<
1206 DYNAMIC_MEMSTART is an easy way of <<
1207 kernel image, where the only restri <<
1208 load address. When this option is e <<
1209 address CONFIG_PHYSICAL_START is ig <<
1210 <<
1211 This option is overridden by CONFIG <<
1212 <<
1213 config PAGE_OFFSET_BOOL <<
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 <<
1221 Say N here unless you know what you <<
1222 <<
1223 config PAGE_OFFSET <<
1224 hex "Virtual address of memory base" <<
1225 default "0xc0000000" <<
1226 <<
1227 config KERNEL_START_BOOL <<
1228 bool "Set custom kernel base address" <<
1229 depends on ADVANCED_OPTIONS <<
1230 help <<
1231 This option allows you to set the k <<
1232 the kernel will be loaded. Normall <<
1233 however there are times (like kdump <<
1234 to be the same. <<
1235 <<
1236 Say N here unless you know what you <<
1237 <<
1238 config KERNEL_START <<
1239 hex "Virtual address of kernel base" <<
1240 default PAGE_OFFSET if PAGE_OFFSET_BO <<
1241 default "0xc2000000" if CRASH_DUMP && <<
1242 default "0xc0000000" <<
1243 <<
1244 config PHYSICAL_START_BOOL <<
1245 bool "Set physical address where the <<
1246 depends on ADVANCED_OPTIONS && FLATME <<
1247 help <<
1248 This gives the physical address whe <<
1249 <<
1250 Say N here unless you know what you <<
1251 <<
1252 config PHYSICAL_START <<
1253 hex "Physical address where the kerne <<
1254 default "0x02000000" if PPC_BOOK3S && <<
1255 default "0x00000000" <<
1256 <<
1257 config PHYSICAL_ALIGN <<
1258 hex <<
1259 default "0x04000000" if PPC_85xx <<
1260 help <<
1261 This value puts the alignment restr <<
1262 where kernel is loaded and run from <<
1263 address which meets above alignment <<
1264 <<
1265 config TASK_SIZE_BOOL <<
1266 bool "Set custom user task size" <<
1267 depends on ADVANCED_OPTIONS <<
1268 help <<
1269 This option allows you to set the a <<
1270 allocated to user tasks. This can <<
1271 virtual memory layout of the system <<
1272 <<
1273 Say N here unless you know what you <<
1274 <<
1275 config TASK_SIZE <<
1276 hex "Size of user task space" if TASK <<
1277 default "0x80000000" if PPC_8xx <<
1278 default "0xb0000000" if PPC_BOOK3S_32 <<
1279 default "0xc0000000" <<
1280 <<
1281 config MODULES_SIZE_BOOL <<
1282 bool "Set custom size for modules/exe <<
1283 depends on EXECMEM && ADVANCED_OPTION <<
1284 help <<
1285 This option allows you to set the s <<
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 <<
1292 config MODULES_SIZE <<
1293 int "Size of modules/execmem area (In <<
1294 range 1 256 if EXECMEM <<
1295 default 64 if EXECMEM && PPC_BOOK3S_3 <<
1296 default 32 if EXECMEM && PPC_8xx <<
1297 default 0 <<
1298 1240
1299 endmenu !! 1241 source "lib/Kconfig"
>> 1242
>> 1243 config X86_SMP
>> 1244 bool
>> 1245 depends on SMP && !X86_VOYAGER
>> 1246 default y
1300 1247
1301 if PPC64 !! 1248 config X86_HT
1302 # This value must have zeroes in the bottom 6 !! 1249 bool
1303 config PAGE_OFFSET !! 1250 depends on SMP && !(X86_VISWS || X86_VOYAGER)
1304 hex !! 1251 default y
1305 default "0xc000000000000000" <<
1306 config KERNEL_START <<
1307 hex <<
1308 default "0xc000000000000000" <<
1309 config PHYSICAL_START <<
1310 hex <<
1311 default "0x00000000" <<
1312 endif <<
1313 1252
1314 config PPC_LIB_RHEAP !! 1253 config X86_BIOS_REBOOT
1315 bool 1254 bool
>> 1255 depends on !(X86_VISWS || X86_VOYAGER)
>> 1256 default y
1316 1257
1317 source "arch/powerpc/kvm/Kconfig" !! 1258 config X86_TRAMPOLINE
>> 1259 bool
>> 1260 depends on SMP || X86_VISWS
>> 1261 default y
1318 1262
1319 source "kernel/livepatch/Kconfig" !! 1263 config PC
>> 1264 bool
>> 1265 depends on X86 && !EMBEDDED
>> 1266 default y
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