1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 source "arch/powerpc/platforms/Kconfig.cputype !! 2 config MIPS
3 <<
4 config CC_HAS_ELFV2 <<
5 def_bool PPC64 && $(cc-option, -mabi=e <<
6 <<
7 config CC_HAS_PREFIXED <<
8 def_bool PPC64 && $(cc-option, -mcpu=p <<
9 <<
10 config CC_HAS_PCREL <<
11 # Clang has a bug (https://github.com/ <<
12 # where pcrel code is not generated if <<
13 # -mno-vsx options are also given. Wit <<
14 # instructions are generated from regu <<
15 # do pcrel yet. <<
16 def_bool PPC64 && CC_IS_GCC && $(cc-op <<
17 <<
18 config 32BIT <<
19 bool <<
20 default y if PPC32 <<
21 <<
22 config 64BIT <<
23 bool <<
24 default y if PPC64 <<
25 <<
26 config LIVEPATCH_64 <<
27 def_bool PPC64 <<
28 depends on LIVEPATCH <<
29 <<
30 config MMU <<
31 bool <<
32 default y <<
33 <<
34 config ARCH_MMAP_RND_BITS_MAX <<
35 # On Book3S 64, the default virtual ad <<
36 # is 2^47 (128TB). As a maximum, allow <<
37 # 32T of address space (2^45), which s <<
38 # between bottom-up and top-down alloc <<
39 # consume "normal" amounts of address <<
40 # and 4K page sizes. <<
41 default 29 if PPC_BOOK3S_64 && PPC_64K <<
42 default 33 if PPC_BOOK3S_64 <<
43 # <<
44 # On all other 64-bit platforms (curre <<
45 # address space is 2^46 (64TB). Allow <<
46 # of address space (2^44). Only 4K pag <<
47 default 32 if 64BIT # 32 = 44 (16T <<
48 # <<
49 # For 32-bit, use the compat values, a <<
50 default ARCH_MMAP_RND_COMPAT_BITS_MAX <<
51 <<
52 config ARCH_MMAP_RND_BITS_MIN <<
53 # Allow randomisation to consume up to <<
54 default 14 if 64BIT && PPC_64K_PAGES <<
55 default 18 if 64BIT <<
56 # <<
57 # For 32-bit, use the compat values, a <<
58 default ARCH_MMAP_RND_COMPAT_BITS_MIN <<
59 <<
60 config ARCH_MMAP_RND_COMPAT_BITS_MAX <<
61 # Total virtual address space for 32-b <<
62 # Allow randomisation to consume up to <<
63 default 11 if PPC_256K_PAGES # 11 = <<
64 default 13 if PPC_64K_PAGES # 13 = <<
65 default 15 if PPC_16K_PAGES # 15 = <<
66 default 17 # 17 = <<
67 <<
68 config ARCH_MMAP_RND_COMPAT_BITS_MIN <<
69 # Total virtual address space for 32-b <<
70 # Allow randomisation to consume up to <<
71 default 5 if PPC_256K_PAGES # 5 = <<
72 default 7 if PPC_64K_PAGES # 7 = <<
73 default 9 if PPC_16K_PAGES # 9 = <<
74 default 11 # 11 = <<
75 <<
76 config NR_IRQS <<
77 int "Number of virtual interrupt numbe <<
78 range 32 1048576 <<
79 default "512" <<
80 help <<
81 This defines the number of virtual i <<
82 can manage. Virtual interrupt number <<
83 /proc/interrupts. If you configure y <<
84 drivers will fail to load or worse - <<
85 <<
86 config NMI_IPI <<
87 bool <<
88 depends on SMP && (DEBUGGER || KEXEC_C <<
89 default y <<
90 <<
91 config PPC_WATCHDOG <<
92 bool <<
93 depends on HARDLOCKUP_DETECTOR_ARCH <<
94 default y <<
95 help <<
96 This is a placeholder when the power <<
97 watchdog is selected (arch/powerpc/k <<
98 selected via the generic lockup dete <<
99 have no standalone config option for <<
100 <<
101 config STACKTRACE_SUPPORT <<
102 bool <<
103 default y <<
104 <<
105 config LOCKDEP_SUPPORT <<
106 bool <<
107 default y <<
108 <<
109 config GENERIC_LOCKBREAK <<
110 bool 3 bool
111 default y 4 default y
112 depends on SMP && PREEMPTION && !PPC_Q !! 5 select ARCH_32BIT_OFF_T if !64BIT
113 !! 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
114 config GENERIC_HWEIGHT !! 7 select ARCH_CLOCKSOURCE_DATA
115 bool !! 8 select ARCH_HAS_ELF_RANDOMIZE
116 default y !! 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
117 !! 10 select ARCH_HAS_UBSAN_SANITIZE_ALL
118 config PPC !! 11 select ARCH_SUPPORTS_UPROBES
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 12 select ARCH_USE_BUILTIN_BSWAP
172 select ARCH_USE_CMPXCHG_LOCKREF !! 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
173 select ARCH_USE_MEMTEST !! 14 select ARCH_USE_QUEUED_RWLOCKS
174 select ARCH_USE_QUEUED_RWLOCKS !! 15 select ARCH_USE_QUEUED_SPINLOCKS
175 select ARCH_WANT_DEFAULT_BPF_JIT <<
176 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
177 select ARCH_WANT_IPC_PARSE_VERSION 16 select ARCH_WANT_IPC_PARSE_VERSION
178 select ARCH_WANT_IRQS_OFF_ACTIVATE_MM !! 17 select BUILDTIME_EXTABLE_SORT
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 18 select CLONE_BACKWARDS
186 select CPUMASK_OFFSTACK !! 19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
187 select DCACHE_WORD_ACCESS !! 20 select CPU_PM if CPU_IDLE
188 select DMA_OPS_BYPASS !! 21 select GENERIC_ATOMIC64 if !64BIT
189 select DYNAMIC_FTRACE !! 22 select GENERIC_CLOCKEVENTS
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 23 select GENERIC_CMOS_UPDATE
197 select GENERIC_CPU_AUTOPROBE 24 select GENERIC_CPU_AUTOPROBE
198 select GENERIC_CPU_VULNERABILITIES !! 25 select GENERIC_IOMAP
199 select GENERIC_EARLY_IOREMAP !! 26 select GENERIC_IRQ_PROBE
200 select GENERIC_GETTIMEOFDAY <<
201 select GENERIC_IDLE_POLL_SETUP <<
202 select GENERIC_IOREMAP <<
203 select GENERIC_IRQ_SHOW 27 select GENERIC_IRQ_SHOW
204 select GENERIC_IRQ_SHOW_LEVEL !! 28 select GENERIC_ISA_DMA if EISA
205 select GENERIC_PCI_IOMAP !! 29 select GENERIC_LIB_ASHLDI3
206 select GENERIC_PTDUMP !! 30 select GENERIC_LIB_ASHRDI3
>> 31 select GENERIC_LIB_CMPDI2
>> 32 select GENERIC_LIB_LSHRDI3
>> 33 select GENERIC_LIB_UCMPDI2
>> 34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
207 select GENERIC_SMP_IDLE_THREAD 35 select GENERIC_SMP_IDLE_THREAD
208 select GENERIC_TIME_VSYSCALL 36 select GENERIC_TIME_VSYSCALL
209 select GENERIC_VDSO_TIME_NS !! 37 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
210 select HAS_IOPORT !! 38 select HANDLE_DOMAIN_IRQ
211 select HAVE_ARCH_AUDITSYSCALL !! 39 select HAVE_ARCH_COMPILER_H
212 select HAVE_ARCH_HUGE_VMALLOC <<
213 select HAVE_ARCH_HUGE_VMAP <<
214 select HAVE_ARCH_JUMP_LABEL 40 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 41 select HAVE_ARCH_KGDB
225 select HAVE_ARCH_MMAP_RND_BITS !! 42 select HAVE_ARCH_MMAP_RND_BITS if MMU
226 select HAVE_ARCH_MMAP_RND_COMPAT_BITS !! 43 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
227 select HAVE_ARCH_NVRAM_OPS <<
228 select HAVE_ARCH_SECCOMP_FILTER 44 select HAVE_ARCH_SECCOMP_FILTER
229 select HAVE_ARCH_TRACEHOOK 45 select HAVE_ARCH_TRACEHOOK
230 select HAVE_ASM_MODVERSIONS !! 46 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
231 select HAVE_CONTEXT_TRACKING_USER !! 47 select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
>> 48 select HAVE_CONTEXT_TRACKING
>> 49 select HAVE_COPY_THREAD_TLS
232 select HAVE_C_RECORDMCOUNT 50 select HAVE_C_RECORDMCOUNT
233 select HAVE_DEBUG_KMEMLEAK 51 select HAVE_DEBUG_KMEMLEAK
234 select HAVE_DEBUG_STACKOVERFLOW 52 select HAVE_DEBUG_STACKOVERFLOW
>> 53 select HAVE_DMA_CONTIGUOUS
235 select HAVE_DYNAMIC_FTRACE 54 select HAVE_DYNAMIC_FTRACE
236 select HAVE_DYNAMIC_FTRACE_WITH_ARGS !! 55 select HAVE_EXIT_THREAD
237 select HAVE_DYNAMIC_FTRACE_WITH_REGS !! 56 select HAVE_FAST_GUP
238 select HAVE_EBPF_JIT <<
239 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
240 select HAVE_GUP_FAST <<
241 select HAVE_FTRACE_MCOUNT_RECORD 57 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 58 select HAVE_FUNCTION_GRAPH_TRACER
246 select HAVE_FUNCTION_TRACER !! 59 select HAVE_FUNCTION_TRACER
247 select HAVE_GCC_PLUGINS !! 60 select HAVE_IDE
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 61 select HAVE_IOREMAP_PROT
>> 62 select HAVE_IRQ_EXIT_ON_IRQ_STACK
253 select HAVE_IRQ_TIME_ACCOUNTING 63 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 64 select HAVE_KPROBES
259 select HAVE_KPROBES_ON_FTRACE <<
260 select HAVE_KRETPROBES 65 select HAVE_KRETPROBES
261 select HAVE_LD_DEAD_CODE_DATA_ELIMINAT !! 66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
262 select HAVE_LIVEPATCH !! 67 select HAVE_MEMBLOCK_NODE_MAP
263 select HAVE_MOD_ARCH_SPECIFIC 68 select HAVE_MOD_ARCH_SPECIFIC
264 select HAVE_NMI !! 69 select HAVE_NMI
265 select HAVE_OPTPROBES !! 70 select HAVE_OPROFILE
266 select HAVE_OBJTOOL <<
267 select HAVE_OBJTOOL_MCOUNT <<
268 select HAVE_PERF_EVENTS 71 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 72 select HAVE_REGS_AND_STACK_ACCESS_API
274 select HAVE_RELIABLE_STACKTRACE <<
275 select HAVE_RSEQ 73 select HAVE_RSEQ
276 select HAVE_SETUP_PER_CPU_AREA !! 74 select HAVE_STACKPROTECTOR
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 75 select HAVE_SYSCALL_TRACEPOINTS
282 select HAVE_VIRT_CPU_ACCOUNTING !! 76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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 77 select IRQ_FORCED_THREADING
290 select KASAN_VMALLOC !! 78 select ISA if EISA
291 select LOCK_MM_AND_FIND_VMA !! 79 select MODULES_USE_ELF_RELA if MODULES && 64BIT
292 select MMU_GATHER_PAGE_SIZE !! 80 select MODULES_USE_ELF_REL if MODULES
293 select MMU_GATHER_RCU_TABLE_FREE !! 81 select PERF_USE_VMALLOC
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 82 select RTC_LIB
310 select SPARSE_IRQ <<
311 select STRICT_KERNEL_RWX if STRICT_MOD <<
312 select SYSCTL_EXCEPTION_TRACE 83 select SYSCTL_EXCEPTION_TRACE
313 select THREAD_INFO_IN_TASK !! 84 select VIRT_TO_BUS
314 select TRACE_IRQFLAGS_SUPPORT !! 85
315 select VDSO_GETRANDOM !! 86 menu "Machine selection"
>> 87
>> 88 choice
>> 89 prompt "System type"
>> 90 default MIPS_GENERIC
>> 91
>> 92 config MIPS_GENERIC
>> 93 bool "Generic board-agnostic MIPS kernel"
>> 94 select BOOT_RAW
>> 95 select BUILTIN_DTB
>> 96 select CEVT_R4K
>> 97 select CLKSRC_MIPS_GIC
>> 98 select COMMON_CLK
>> 99 select CPU_MIPSR2_IRQ_VI
>> 100 select CPU_MIPSR2_IRQ_EI
>> 101 select CSRC_R4K
>> 102 select DMA_PERDEV_COHERENT
>> 103 select HAVE_PCI
>> 104 select IRQ_MIPS_CPU
>> 105 select LIBFDT
>> 106 select MIPS_AUTO_PFN_OFFSET
>> 107 select MIPS_CPU_SCACHE
>> 108 select MIPS_GIC
>> 109 select MIPS_L1_CACHE_SHIFT_7
>> 110 select NO_EXCEPT_FILL
>> 111 select PCI_DRIVERS_GENERIC
>> 112 select PINCTRL
>> 113 select SMP_UP if SMP
>> 114 select SWAP_IO_SPACE
>> 115 select SYS_HAS_CPU_MIPS32_R1
>> 116 select SYS_HAS_CPU_MIPS32_R2
>> 117 select SYS_HAS_CPU_MIPS32_R6
>> 118 select SYS_HAS_CPU_MIPS64_R1
>> 119 select SYS_HAS_CPU_MIPS64_R2
>> 120 select SYS_HAS_CPU_MIPS64_R6
>> 121 select SYS_SUPPORTS_32BIT_KERNEL
>> 122 select SYS_SUPPORTS_64BIT_KERNEL
>> 123 select SYS_SUPPORTS_BIG_ENDIAN
>> 124 select SYS_SUPPORTS_HIGHMEM
>> 125 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 126 select SYS_SUPPORTS_MICROMIPS
>> 127 select SYS_SUPPORTS_MIPS_CPS
>> 128 select SYS_SUPPORTS_MIPS16
>> 129 select SYS_SUPPORTS_MULTITHREADING
>> 130 select SYS_SUPPORTS_RELOCATABLE
>> 131 select SYS_SUPPORTS_SMARTMIPS
>> 132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 138 select USE_OF
>> 139 select UHI_BOOT
>> 140 help
>> 141 Select this to build a kernel which aims to support multiple boards,
>> 142 generally using a flattened device tree passed from the bootloader
>> 143 using the boot protocol defined in the UHI (Unified Hosting
>> 144 Interface) specification.
>> 145
>> 146 config MIPS_ALCHEMY
>> 147 bool "Alchemy processor based machines"
>> 148 select PHYS_ADDR_T_64BIT
>> 149 select CEVT_R4K
>> 150 select CSRC_R4K
>> 151 select IRQ_MIPS_CPU
>> 152 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
>> 153 select SYS_HAS_CPU_MIPS32_R1
>> 154 select SYS_SUPPORTS_32BIT_KERNEL
>> 155 select SYS_SUPPORTS_APM_EMULATION
>> 156 select GPIOLIB
>> 157 select SYS_SUPPORTS_ZBOOT
>> 158 select COMMON_CLK
>> 159
>> 160 config AR7
>> 161 bool "Texas Instruments AR7"
>> 162 select BOOT_ELF32
>> 163 select DMA_NONCOHERENT
>> 164 select CEVT_R4K
>> 165 select CSRC_R4K
>> 166 select IRQ_MIPS_CPU
>> 167 select NO_EXCEPT_FILL
>> 168 select SWAP_IO_SPACE
>> 169 select SYS_HAS_CPU_MIPS32_R1
>> 170 select SYS_HAS_EARLY_PRINTK
>> 171 select SYS_SUPPORTS_32BIT_KERNEL
>> 172 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 173 select SYS_SUPPORTS_MIPS16
>> 174 select SYS_SUPPORTS_ZBOOT_UART16550
>> 175 select GPIOLIB
>> 176 select VLYNQ
>> 177 select HAVE_CLK
>> 178 help
>> 179 Support for the Texas Instruments AR7 System-on-a-Chip
>> 180 family: TNETD7100, 7200 and 7300.
>> 181
>> 182 config ATH25
>> 183 bool "Atheros AR231x/AR531x SoC support"
>> 184 select CEVT_R4K
>> 185 select CSRC_R4K
>> 186 select DMA_NONCOHERENT
>> 187 select IRQ_MIPS_CPU
>> 188 select IRQ_DOMAIN
>> 189 select SYS_HAS_CPU_MIPS32_R1
>> 190 select SYS_SUPPORTS_BIG_ENDIAN
>> 191 select SYS_SUPPORTS_32BIT_KERNEL
>> 192 select SYS_HAS_EARLY_PRINTK
>> 193 help
>> 194 Support for Atheros AR231x and Atheros AR531x based boards
>> 195
>> 196 config ATH79
>> 197 bool "Atheros AR71XX/AR724X/AR913X based boards"
>> 198 select ARCH_HAS_RESET_CONTROLLER
>> 199 select BOOT_RAW
>> 200 select CEVT_R4K
>> 201 select CSRC_R4K
>> 202 select DMA_NONCOHERENT
>> 203 select GPIOLIB
>> 204 select PINCTRL
>> 205 select HAVE_CLK
>> 206 select COMMON_CLK
>> 207 select CLKDEV_LOOKUP
>> 208 select IRQ_MIPS_CPU
>> 209 select SYS_HAS_CPU_MIPS32_R2
>> 210 select SYS_HAS_EARLY_PRINTK
>> 211 select SYS_SUPPORTS_32BIT_KERNEL
>> 212 select SYS_SUPPORTS_BIG_ENDIAN
>> 213 select SYS_SUPPORTS_MIPS16
>> 214 select SYS_SUPPORTS_ZBOOT_UART_PROM
>> 215 select USE_OF
>> 216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
>> 217 help
>> 218 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
>> 219
>> 220 config BMIPS_GENERIC
>> 221 bool "Broadcom Generic BMIPS kernel"
>> 222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
>> 223 select ARCH_HAS_PHYS_TO_DMA
>> 224 select BOOT_RAW
>> 225 select NO_EXCEPT_FILL
>> 226 select USE_OF
>> 227 select CEVT_R4K
>> 228 select CSRC_R4K
>> 229 select SYNC_R4K
>> 230 select COMMON_CLK
>> 231 select BCM6345_L1_IRQ
>> 232 select BCM7038_L1_IRQ
>> 233 select BCM7120_L2_IRQ
>> 234 select BRCMSTB_L2_IRQ
>> 235 select IRQ_MIPS_CPU
>> 236 select DMA_NONCOHERENT
>> 237 select SYS_SUPPORTS_32BIT_KERNEL
>> 238 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 239 select SYS_SUPPORTS_BIG_ENDIAN
>> 240 select SYS_SUPPORTS_HIGHMEM
>> 241 select SYS_HAS_CPU_BMIPS32_3300
>> 242 select SYS_HAS_CPU_BMIPS4350
>> 243 select SYS_HAS_CPU_BMIPS4380
>> 244 select SYS_HAS_CPU_BMIPS5000
>> 245 select SWAP_IO_SPACE
>> 246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 250 select HARDIRQS_SW_RESEND
>> 251 help
>> 252 Build a generic DT-based kernel image that boots on select
>> 253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
>> 254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
>> 255 must be set appropriately for your board.
>> 256
>> 257 config BCM47XX
>> 258 bool "Broadcom BCM47XX based boards"
>> 259 select BOOT_RAW
>> 260 select CEVT_R4K
>> 261 select CSRC_R4K
>> 262 select DMA_NONCOHERENT
>> 263 select HAVE_PCI
>> 264 select IRQ_MIPS_CPU
>> 265 select SYS_HAS_CPU_MIPS32_R1
>> 266 select NO_EXCEPT_FILL
>> 267 select SYS_SUPPORTS_32BIT_KERNEL
>> 268 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 269 select SYS_SUPPORTS_MIPS16
>> 270 select SYS_SUPPORTS_ZBOOT
>> 271 select SYS_HAS_EARLY_PRINTK
>> 272 select USE_GENERIC_EARLY_PRINTK_8250
>> 273 select GPIOLIB
>> 274 select LEDS_GPIO_REGISTER
>> 275 select BCM47XX_NVRAM
>> 276 select BCM47XX_SPROM
>> 277 select BCM47XX_SSB if !BCM47XX_BCMA
>> 278 help
>> 279 Support for BCM47XX based boards
>> 280
>> 281 config BCM63XX
>> 282 bool "Broadcom BCM63XX based boards"
>> 283 select BOOT_RAW
>> 284 select CEVT_R4K
>> 285 select CSRC_R4K
>> 286 select SYNC_R4K
>> 287 select DMA_NONCOHERENT
>> 288 select IRQ_MIPS_CPU
>> 289 select SYS_SUPPORTS_32BIT_KERNEL
>> 290 select SYS_SUPPORTS_BIG_ENDIAN
>> 291 select SYS_HAS_EARLY_PRINTK
>> 292 select SWAP_IO_SPACE
>> 293 select GPIOLIB
>> 294 select HAVE_CLK
>> 295 select MIPS_L1_CACHE_SHIFT_4
>> 296 select CLKDEV_LOOKUP
>> 297 help
>> 298 Support for BCM63XX based boards
>> 299
>> 300 config MIPS_COBALT
>> 301 bool "Cobalt Server"
>> 302 select CEVT_R4K
>> 303 select CSRC_R4K
>> 304 select CEVT_GT641XX
>> 305 select DMA_NONCOHERENT
>> 306 select FORCE_PCI
>> 307 select I8253
>> 308 select I8259
>> 309 select IRQ_MIPS_CPU
>> 310 select IRQ_GT641XX
>> 311 select PCI_GT64XXX_PCI0
>> 312 select SYS_HAS_CPU_NEVADA
>> 313 select SYS_HAS_EARLY_PRINTK
>> 314 select SYS_SUPPORTS_32BIT_KERNEL
>> 315 select SYS_SUPPORTS_64BIT_KERNEL
>> 316 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 317 select USE_GENERIC_EARLY_PRINTK_8250
>> 318
>> 319 config MACH_DECSTATION
>> 320 bool "DECstations"
>> 321 select BOOT_ELF32
>> 322 select CEVT_DS1287
>> 323 select CEVT_R4K if CPU_R4X00
>> 324 select CSRC_IOASIC
>> 325 select CSRC_R4K if CPU_R4X00
>> 326 select CPU_DADDI_WORKAROUNDS if 64BIT
>> 327 select CPU_R4000_WORKAROUNDS if 64BIT
>> 328 select CPU_R4400_WORKAROUNDS if 64BIT
>> 329 select DMA_NONCOHERENT
>> 330 select NO_IOPORT_MAP
>> 331 select IRQ_MIPS_CPU
>> 332 select SYS_HAS_CPU_R3000
>> 333 select SYS_HAS_CPU_R4X00
>> 334 select SYS_SUPPORTS_32BIT_KERNEL
>> 335 select SYS_SUPPORTS_64BIT_KERNEL
>> 336 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 337 select SYS_SUPPORTS_128HZ
>> 338 select SYS_SUPPORTS_256HZ
>> 339 select SYS_SUPPORTS_1024HZ
>> 340 select MIPS_L1_CACHE_SHIFT_4
>> 341 help
>> 342 This enables support for DEC's MIPS based workstations. For details
>> 343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
>> 344 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 345
>> 346 If you have one of the following DECstation Models you definitely
>> 347 want to choose R4xx0 for the CPU Type:
>> 348
>> 349 DECstation 5000/50
>> 350 DECstation 5000/150
>> 351 DECstation 5000/260
>> 352 DECsystem 5900/260
>> 353
>> 354 otherwise choose R3000.
>> 355
>> 356 config MACH_JAZZ
>> 357 bool "Jazz family of machines"
>> 358 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 359 select ARCH_MIGHT_HAVE_PC_SERIO
>> 360 select FW_ARC
>> 361 select FW_ARC32
>> 362 select ARCH_MAY_HAVE_PC_FDC
>> 363 select CEVT_R4K
>> 364 select CSRC_R4K
>> 365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 366 select GENERIC_ISA_DMA
>> 367 select HAVE_PCSPKR_PLATFORM
>> 368 select IRQ_MIPS_CPU
>> 369 select I8253
>> 370 select I8259
>> 371 select ISA
>> 372 select SYS_HAS_CPU_R4X00
>> 373 select SYS_SUPPORTS_32BIT_KERNEL
>> 374 select SYS_SUPPORTS_64BIT_KERNEL
>> 375 select SYS_SUPPORTS_100HZ
>> 376 help
>> 377 This a family of machines based on the MIPS R4030 chipset which was
>> 378 used by several vendors to build RISC/os and Windows NT workstations.
>> 379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
>> 380 Olivetti M700-10 workstations.
>> 381
>> 382 config MACH_INGENIC
>> 383 bool "Ingenic SoC based machines"
>> 384 select SYS_SUPPORTS_32BIT_KERNEL
>> 385 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 386 select SYS_SUPPORTS_ZBOOT_UART16550
>> 387 select DMA_NONCOHERENT
>> 388 select IRQ_MIPS_CPU
>> 389 select PINCTRL
>> 390 select GPIOLIB
>> 391 select COMMON_CLK
>> 392 select GENERIC_IRQ_CHIP
>> 393 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
>> 394 select USE_OF
>> 395 select LIBFDT
>> 396
>> 397 config LANTIQ
>> 398 bool "Lantiq based platforms"
>> 399 select DMA_NONCOHERENT
>> 400 select IRQ_MIPS_CPU
>> 401 select CEVT_R4K
>> 402 select CSRC_R4K
>> 403 select SYS_HAS_CPU_MIPS32_R1
>> 404 select SYS_HAS_CPU_MIPS32_R2
>> 405 select SYS_SUPPORTS_BIG_ENDIAN
>> 406 select SYS_SUPPORTS_32BIT_KERNEL
>> 407 select SYS_SUPPORTS_MIPS16
>> 408 select SYS_SUPPORTS_MULTITHREADING
>> 409 select SYS_SUPPORTS_VPE_LOADER
>> 410 select SYS_HAS_EARLY_PRINTK
>> 411 select GPIOLIB
>> 412 select SWAP_IO_SPACE
>> 413 select BOOT_RAW
>> 414 select CLKDEV_LOOKUP
>> 415 select USE_OF
>> 416 select PINCTRL
>> 417 select PINCTRL_LANTIQ
>> 418 select ARCH_HAS_RESET_CONTROLLER
>> 419 select RESET_CONTROLLER
>> 420
>> 421 config LASAT
>> 422 bool "LASAT Networks platforms"
>> 423 select CEVT_R4K
>> 424 select CRC32
>> 425 select CSRC_R4K
>> 426 select DMA_NONCOHERENT
>> 427 select SYS_HAS_EARLY_PRINTK
>> 428 select HAVE_PCI
>> 429 select IRQ_MIPS_CPU
>> 430 select PCI_GT64XXX_PCI0
>> 431 select MIPS_NILE4
>> 432 select R5000_CPU_SCACHE
>> 433 select SYS_HAS_CPU_R5000
>> 434 select SYS_SUPPORTS_32BIT_KERNEL
>> 435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
>> 436 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 437
>> 438 config MACH_LOONGSON32
>> 439 bool "Loongson-1 family of machines"
>> 440 select SYS_SUPPORTS_ZBOOT
>> 441 help
>> 442 This enables support for the Loongson-1 family of machines.
>> 443
>> 444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
>> 445 the Institute of Computing Technology (ICT), Chinese Academy of
>> 446 Sciences (CAS).
>> 447
>> 448 config MACH_LOONGSON64
>> 449 bool "Loongson-2/3 family of machines"
>> 450 select SYS_SUPPORTS_ZBOOT
>> 451 help
>> 452 This enables the support of Loongson-2/3 family of machines.
>> 453
>> 454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
>> 455 family of multi-core CPUs. They are both 64-bit general-purpose
>> 456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
>> 457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
>> 458 in the People's Republic of China. The chief architect is Professor
>> 459 Weiwu Hu.
>> 460
>> 461 config MACH_PISTACHIO
>> 462 bool "IMG Pistachio SoC based boards"
>> 463 select BOOT_ELF32
>> 464 select BOOT_RAW
>> 465 select CEVT_R4K
>> 466 select CLKSRC_MIPS_GIC
>> 467 select COMMON_CLK
>> 468 select CSRC_R4K
>> 469 select DMA_NONCOHERENT
>> 470 select GPIOLIB
>> 471 select IRQ_MIPS_CPU
>> 472 select LIBFDT
>> 473 select MFD_SYSCON
>> 474 select MIPS_CPU_SCACHE
>> 475 select MIPS_GIC
>> 476 select PINCTRL
>> 477 select REGULATOR
>> 478 select SYS_HAS_CPU_MIPS32_R2
>> 479 select SYS_SUPPORTS_32BIT_KERNEL
>> 480 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 481 select SYS_SUPPORTS_MIPS_CPS
>> 482 select SYS_SUPPORTS_MULTITHREADING
>> 483 select SYS_SUPPORTS_RELOCATABLE
>> 484 select SYS_SUPPORTS_ZBOOT
>> 485 select SYS_HAS_EARLY_PRINTK
>> 486 select USE_GENERIC_EARLY_PRINTK_8250
>> 487 select USE_OF
>> 488 help
>> 489 This enables support for the IMG Pistachio SoC platform.
>> 490
>> 491 config MIPS_MALTA
>> 492 bool "MIPS Malta board"
>> 493 select ARCH_MAY_HAVE_PC_FDC
>> 494 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 495 select ARCH_MIGHT_HAVE_PC_SERIO
>> 496 select BOOT_ELF32
>> 497 select BOOT_RAW
>> 498 select BUILTIN_DTB
>> 499 select CEVT_R4K
>> 500 select CLKSRC_MIPS_GIC
>> 501 select COMMON_CLK
>> 502 select CSRC_R4K
>> 503 select DMA_MAYBE_COHERENT
>> 504 select GENERIC_ISA_DMA
>> 505 select HAVE_PCSPKR_PLATFORM
>> 506 select HAVE_PCI
>> 507 select I8253
>> 508 select I8259
>> 509 select IRQ_MIPS_CPU
>> 510 select LIBFDT
>> 511 select MIPS_BONITO64
>> 512 select MIPS_CPU_SCACHE
>> 513 select MIPS_GIC
>> 514 select MIPS_L1_CACHE_SHIFT_6
>> 515 select MIPS_MSC
>> 516 select PCI_GT64XXX_PCI0
>> 517 select SMP_UP if SMP
>> 518 select SWAP_IO_SPACE
>> 519 select SYS_HAS_CPU_MIPS32_R1
>> 520 select SYS_HAS_CPU_MIPS32_R2
>> 521 select SYS_HAS_CPU_MIPS32_R3_5
>> 522 select SYS_HAS_CPU_MIPS32_R5
>> 523 select SYS_HAS_CPU_MIPS32_R6
>> 524 select SYS_HAS_CPU_MIPS64_R1
>> 525 select SYS_HAS_CPU_MIPS64_R2
>> 526 select SYS_HAS_CPU_MIPS64_R6
>> 527 select SYS_HAS_CPU_NEVADA
>> 528 select SYS_HAS_CPU_RM7000
>> 529 select SYS_SUPPORTS_32BIT_KERNEL
>> 530 select SYS_SUPPORTS_64BIT_KERNEL
>> 531 select SYS_SUPPORTS_BIG_ENDIAN
>> 532 select SYS_SUPPORTS_HIGHMEM
>> 533 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 534 select SYS_SUPPORTS_MICROMIPS
>> 535 select SYS_SUPPORTS_MIPS16
>> 536 select SYS_SUPPORTS_MIPS_CMP
>> 537 select SYS_SUPPORTS_MIPS_CPS
>> 538 select SYS_SUPPORTS_MULTITHREADING
>> 539 select SYS_SUPPORTS_RELOCATABLE
>> 540 select SYS_SUPPORTS_SMARTMIPS
>> 541 select SYS_SUPPORTS_VPE_LOADER
>> 542 select SYS_SUPPORTS_ZBOOT
>> 543 select USE_OF
>> 544 select ZONE_DMA32 if 64BIT
>> 545 help
>> 546 This enables support for the MIPS Technologies Malta evaluation
>> 547 board.
>> 548
>> 549 config MACH_PIC32
>> 550 bool "Microchip PIC32 Family"
>> 551 help
>> 552 This enables support for the Microchip PIC32 family of platforms.
>> 553
>> 554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
>> 555 microcontrollers.
>> 556
>> 557 config NEC_MARKEINS
>> 558 bool "NEC EMMA2RH Mark-eins board"
>> 559 select SOC_EMMA2RH
>> 560 select HAVE_PCI
>> 561 help
>> 562 This enables support for the NEC Electronics Mark-eins boards.
>> 563
>> 564 config MACH_VR41XX
>> 565 bool "NEC VR4100 series based machines"
>> 566 select CEVT_R4K
>> 567 select CSRC_R4K
>> 568 select SYS_HAS_CPU_VR41XX
>> 569 select SYS_SUPPORTS_MIPS16
>> 570 select GPIOLIB
>> 571
>> 572 config NXP_STB220
>> 573 bool "NXP STB220 board"
>> 574 select SOC_PNX833X
>> 575 help
>> 576 Support for NXP Semiconductors STB220 Development Board.
>> 577
>> 578 config NXP_STB225
>> 579 bool "NXP 225 board"
>> 580 select SOC_PNX833X
>> 581 select SOC_PNX8335
>> 582 help
>> 583 Support for NXP Semiconductors STB225 Development Board.
>> 584
>> 585 config PMC_MSP
>> 586 bool "PMC-Sierra MSP chipsets"
>> 587 select CEVT_R4K
>> 588 select CSRC_R4K
>> 589 select DMA_NONCOHERENT
>> 590 select SWAP_IO_SPACE
>> 591 select NO_EXCEPT_FILL
>> 592 select BOOT_RAW
>> 593 select SYS_HAS_CPU_MIPS32_R1
>> 594 select SYS_HAS_CPU_MIPS32_R2
>> 595 select SYS_SUPPORTS_32BIT_KERNEL
>> 596 select SYS_SUPPORTS_BIG_ENDIAN
>> 597 select SYS_SUPPORTS_MIPS16
>> 598 select IRQ_MIPS_CPU
>> 599 select SERIAL_8250
>> 600 select SERIAL_8250_CONSOLE
>> 601 select USB_EHCI_BIG_ENDIAN_MMIO
>> 602 select USB_EHCI_BIG_ENDIAN_DESC
>> 603 help
>> 604 This adds support for the PMC-Sierra family of Multi-Service
>> 605 Processor System-On-A-Chips. These parts include a number
>> 606 of integrated peripherals, interfaces and DSPs in addition to
>> 607 a variety of MIPS cores.
>> 608
>> 609 config RALINK
>> 610 bool "Ralink based machines"
>> 611 select CEVT_R4K
>> 612 select CSRC_R4K
>> 613 select BOOT_RAW
>> 614 select DMA_NONCOHERENT
>> 615 select IRQ_MIPS_CPU
>> 616 select USE_OF
>> 617 select SYS_HAS_CPU_MIPS32_R1
>> 618 select SYS_HAS_CPU_MIPS32_R2
>> 619 select SYS_SUPPORTS_32BIT_KERNEL
>> 620 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 621 select SYS_SUPPORTS_MIPS16
>> 622 select SYS_HAS_EARLY_PRINTK
>> 623 select CLKDEV_LOOKUP
>> 624 select ARCH_HAS_RESET_CONTROLLER
>> 625 select RESET_CONTROLLER
>> 626
>> 627 config SGI_IP22
>> 628 bool "SGI IP22 (Indy/Indigo2)"
>> 629 select FW_ARC
>> 630 select FW_ARC32
>> 631 select ARCH_MIGHT_HAVE_PC_SERIO
>> 632 select BOOT_ELF32
>> 633 select CEVT_R4K
>> 634 select CSRC_R4K
>> 635 select DEFAULT_SGI_PARTITION
>> 636 select DMA_NONCOHERENT
>> 637 select HAVE_EISA
>> 638 select I8253
>> 639 select I8259
>> 640 select IP22_CPU_SCACHE
>> 641 select IRQ_MIPS_CPU
>> 642 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 643 select SGI_HAS_I8042
>> 644 select SGI_HAS_INDYDOG
>> 645 select SGI_HAS_HAL2
>> 646 select SGI_HAS_SEEQ
>> 647 select SGI_HAS_WD93
>> 648 select SGI_HAS_ZILOG
>> 649 select SWAP_IO_SPACE
>> 650 select SYS_HAS_CPU_R4X00
>> 651 select SYS_HAS_CPU_R5000
>> 652 #
>> 653 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 654 # memory during early boot on some machines.
316 # 655 #
317 # Please keep this list sorted alphabe !! 656 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 657 # for a more details discussion
318 # 658 #
>> 659 # select SYS_HAS_EARLY_PRINTK
>> 660 select SYS_SUPPORTS_32BIT_KERNEL
>> 661 select SYS_SUPPORTS_64BIT_KERNEL
>> 662 select SYS_SUPPORTS_BIG_ENDIAN
>> 663 select MIPS_L1_CACHE_SHIFT_7
>> 664 help
>> 665 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 667 that runs on these, say Y here.
>> 668
>> 669 config SGI_IP27
>> 670 bool "SGI IP27 (Origin200/2000)"
>> 671 select ARCH_HAS_PHYS_TO_DMA
>> 672 select FW_ARC
>> 673 select FW_ARC64
>> 674 select BOOT_ELF64
>> 675 select DEFAULT_SGI_PARTITION
>> 676 select SYS_HAS_EARLY_PRINTK
>> 677 select HAVE_PCI
>> 678 select IRQ_MIPS_CPU
>> 679 select IRQ_DOMAIN_HIERARCHY
>> 680 select NR_CPUS_DEFAULT_64
>> 681 select PCI_DRIVERS_GENERIC
>> 682 select PCI_XTALK_BRIDGE
>> 683 select SYS_HAS_CPU_R10000
>> 684 select SYS_SUPPORTS_64BIT_KERNEL
>> 685 select SYS_SUPPORTS_BIG_ENDIAN
>> 686 select SYS_SUPPORTS_NUMA
>> 687 select SYS_SUPPORTS_SMP
>> 688 select MIPS_L1_CACHE_SHIFT_7
>> 689 help
>> 690 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 691 workstations. To compile a Linux kernel that runs on these, say Y
>> 692 here.
>> 693
>> 694 config SGI_IP28
>> 695 bool "SGI IP28 (Indigo2 R10k)"
>> 696 select FW_ARC
>> 697 select FW_ARC64
>> 698 select ARCH_MIGHT_HAVE_PC_SERIO
>> 699 select BOOT_ELF64
>> 700 select CEVT_R4K
>> 701 select CSRC_R4K
>> 702 select DEFAULT_SGI_PARTITION
>> 703 select DMA_NONCOHERENT
>> 704 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 705 select IRQ_MIPS_CPU
>> 706 select HAVE_EISA
>> 707 select I8253
>> 708 select I8259
>> 709 select SGI_HAS_I8042
>> 710 select SGI_HAS_INDYDOG
>> 711 select SGI_HAS_HAL2
>> 712 select SGI_HAS_SEEQ
>> 713 select SGI_HAS_WD93
>> 714 select SGI_HAS_ZILOG
>> 715 select SWAP_IO_SPACE
>> 716 select SYS_HAS_CPU_R10000
>> 717 #
>> 718 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 719 # memory during early boot on some machines.
>> 720 #
>> 721 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 722 # for a more details discussion
>> 723 #
>> 724 # select SYS_HAS_EARLY_PRINTK
>> 725 select SYS_SUPPORTS_64BIT_KERNEL
>> 726 select SYS_SUPPORTS_BIG_ENDIAN
>> 727 select MIPS_L1_CACHE_SHIFT_7
>> 728 help
>> 729 This is the SGI Indigo2 with R10000 processor. To compile a Linux
>> 730 kernel that runs on these, say Y here.
>> 731
>> 732 config SGI_IP32
>> 733 bool "SGI IP32 (O2)"
>> 734 select ARCH_HAS_PHYS_TO_DMA
>> 735 select FW_ARC
>> 736 select FW_ARC32
>> 737 select BOOT_ELF32
>> 738 select CEVT_R4K
>> 739 select CSRC_R4K
>> 740 select DMA_NONCOHERENT
>> 741 select HAVE_PCI
>> 742 select IRQ_MIPS_CPU
>> 743 select R5000_CPU_SCACHE
>> 744 select RM7000_CPU_SCACHE
>> 745 select SYS_HAS_CPU_R5000
>> 746 select SYS_HAS_CPU_R10000 if BROKEN
>> 747 select SYS_HAS_CPU_RM7000
>> 748 select SYS_HAS_CPU_NEVADA
>> 749 select SYS_SUPPORTS_64BIT_KERNEL
>> 750 select SYS_SUPPORTS_BIG_ENDIAN
>> 751 help
>> 752 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 753
>> 754 config SIBYTE_CRHINE
>> 755 bool "Sibyte BCM91120C-CRhine"
>> 756 select BOOT_ELF32
>> 757 select SIBYTE_BCM1120
>> 758 select SWAP_IO_SPACE
>> 759 select SYS_HAS_CPU_SB1
>> 760 select SYS_SUPPORTS_BIG_ENDIAN
>> 761 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 762
>> 763 config SIBYTE_CARMEL
>> 764 bool "Sibyte BCM91120x-Carmel"
>> 765 select BOOT_ELF32
>> 766 select SIBYTE_BCM1120
>> 767 select SWAP_IO_SPACE
>> 768 select SYS_HAS_CPU_SB1
>> 769 select SYS_SUPPORTS_BIG_ENDIAN
>> 770 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 771
>> 772 config SIBYTE_CRHONE
>> 773 bool "Sibyte BCM91125C-CRhone"
>> 774 select BOOT_ELF32
>> 775 select SIBYTE_BCM1125
>> 776 select SWAP_IO_SPACE
>> 777 select SYS_HAS_CPU_SB1
>> 778 select SYS_SUPPORTS_BIG_ENDIAN
>> 779 select SYS_SUPPORTS_HIGHMEM
>> 780 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 781
>> 782 config SIBYTE_RHONE
>> 783 bool "Sibyte BCM91125E-Rhone"
>> 784 select BOOT_ELF32
>> 785 select SIBYTE_BCM1125H
>> 786 select SWAP_IO_SPACE
>> 787 select SYS_HAS_CPU_SB1
>> 788 select SYS_SUPPORTS_BIG_ENDIAN
>> 789 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 790
>> 791 config SIBYTE_SWARM
>> 792 bool "Sibyte BCM91250A-SWARM"
>> 793 select BOOT_ELF32
>> 794 select HAVE_PATA_PLATFORM
>> 795 select SIBYTE_SB1250
>> 796 select SWAP_IO_SPACE
>> 797 select SYS_HAS_CPU_SB1
>> 798 select SYS_SUPPORTS_BIG_ENDIAN
>> 799 select SYS_SUPPORTS_HIGHMEM
>> 800 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 801 select ZONE_DMA32 if 64BIT
>> 802 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 803
>> 804 config SIBYTE_LITTLESUR
>> 805 bool "Sibyte BCM91250C2-LittleSur"
>> 806 select BOOT_ELF32
>> 807 select HAVE_PATA_PLATFORM
>> 808 select SIBYTE_SB1250
>> 809 select SWAP_IO_SPACE
>> 810 select SYS_HAS_CPU_SB1
>> 811 select SYS_SUPPORTS_BIG_ENDIAN
>> 812 select SYS_SUPPORTS_HIGHMEM
>> 813 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 814 select ZONE_DMA32 if 64BIT
>> 815
>> 816 config SIBYTE_SENTOSA
>> 817 bool "Sibyte BCM91250E-Sentosa"
>> 818 select BOOT_ELF32
>> 819 select SIBYTE_SB1250
>> 820 select SWAP_IO_SPACE
>> 821 select SYS_HAS_CPU_SB1
>> 822 select SYS_SUPPORTS_BIG_ENDIAN
>> 823 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 824 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 825
>> 826 config SIBYTE_BIGSUR
>> 827 bool "Sibyte BCM91480B-BigSur"
>> 828 select BOOT_ELF32
>> 829 select NR_CPUS_DEFAULT_4
>> 830 select SIBYTE_BCM1x80
>> 831 select SWAP_IO_SPACE
>> 832 select SYS_HAS_CPU_SB1
>> 833 select SYS_SUPPORTS_BIG_ENDIAN
>> 834 select SYS_SUPPORTS_HIGHMEM
>> 835 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 836 select ZONE_DMA32 if 64BIT
>> 837 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 838
>> 839 config SNI_RM
>> 840 bool "SNI RM200/300/400"
>> 841 select FW_ARC if CPU_LITTLE_ENDIAN
>> 842 select FW_ARC32 if CPU_LITTLE_ENDIAN
>> 843 select FW_SNIPROM if CPU_BIG_ENDIAN
>> 844 select ARCH_MAY_HAVE_PC_FDC
>> 845 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 846 select ARCH_MIGHT_HAVE_PC_SERIO
>> 847 select BOOT_ELF32
>> 848 select CEVT_R4K
>> 849 select CSRC_R4K
>> 850 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 851 select DMA_NONCOHERENT
>> 852 select GENERIC_ISA_DMA
>> 853 select HAVE_EISA
>> 854 select HAVE_PCSPKR_PLATFORM
>> 855 select HAVE_PCI
>> 856 select IRQ_MIPS_CPU
>> 857 select I8253
>> 858 select I8259
>> 859 select ISA
>> 860 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
>> 861 select SYS_HAS_CPU_R4X00
>> 862 select SYS_HAS_CPU_R5000
>> 863 select SYS_HAS_CPU_R10000
>> 864 select R5000_CPU_SCACHE
>> 865 select SYS_HAS_EARLY_PRINTK
>> 866 select SYS_SUPPORTS_32BIT_KERNEL
>> 867 select SYS_SUPPORTS_64BIT_KERNEL
>> 868 select SYS_SUPPORTS_BIG_ENDIAN
>> 869 select SYS_SUPPORTS_HIGHMEM
>> 870 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 871 help
>> 872 The SNI RM200/300/400 are MIPS-based machines manufactured by
>> 873 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 874 Technology and now in turn merged with Fujitsu. Say Y here to
>> 875 support this machine type.
>> 876
>> 877 config MACH_TX39XX
>> 878 bool "Toshiba TX39 series based machines"
>> 879
>> 880 config MACH_TX49XX
>> 881 bool "Toshiba TX49 series based machines"
>> 882
>> 883 config MIKROTIK_RB532
>> 884 bool "Mikrotik RB532 boards"
>> 885 select CEVT_R4K
>> 886 select CSRC_R4K
>> 887 select DMA_NONCOHERENT
>> 888 select HAVE_PCI
>> 889 select IRQ_MIPS_CPU
>> 890 select SYS_HAS_CPU_MIPS32_R1
>> 891 select SYS_SUPPORTS_32BIT_KERNEL
>> 892 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 893 select SWAP_IO_SPACE
>> 894 select BOOT_RAW
>> 895 select GPIOLIB
>> 896 select MIPS_L1_CACHE_SHIFT_4
>> 897 help
>> 898 Support the Mikrotik(tm) RouterBoard 532 series,
>> 899 based on the IDT RC32434 SoC.
>> 900
>> 901 config CAVIUM_OCTEON_SOC
>> 902 bool "Cavium Networks Octeon SoC based boards"
>> 903 select CEVT_R4K
>> 904 select ARCH_HAS_PHYS_TO_DMA
>> 905 select HAVE_RAPIDIO
>> 906 select PHYS_ADDR_T_64BIT
>> 907 select SYS_SUPPORTS_64BIT_KERNEL
>> 908 select SYS_SUPPORTS_BIG_ENDIAN
>> 909 select EDAC_SUPPORT
>> 910 select EDAC_ATOMIC_SCRUB
>> 911 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 912 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
>> 913 select SYS_HAS_EARLY_PRINTK
>> 914 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 915 select HAVE_PCI
>> 916 select ZONE_DMA32
>> 917 select HOLES_IN_ZONE
>> 918 select GPIOLIB
>> 919 select LIBFDT
>> 920 select USE_OF
>> 921 select ARCH_SPARSEMEM_ENABLE
>> 922 select SYS_SUPPORTS_SMP
>> 923 select NR_CPUS_DEFAULT_64
>> 924 select MIPS_NR_CPU_NR_MAP_1024
>> 925 select BUILTIN_DTB
>> 926 select MTD_COMPLEX_MAPPINGS
>> 927 select SWIOTLB
>> 928 select SYS_SUPPORTS_RELOCATABLE
>> 929 help
>> 930 This option supports all of the Octeon reference boards from Cavium
>> 931 Networks. It builds a kernel that dynamically determines the Octeon
>> 932 CPU type and supports all known board reference implementations.
>> 933 Some of the supported boards are:
>> 934 EBT3000
>> 935 EBH3000
>> 936 EBH3100
>> 937 Thunder
>> 938 Kodama
>> 939 Hikari
>> 940 Say Y here for most Octeon reference boards.
>> 941
>> 942 config NLM_XLR_BOARD
>> 943 bool "Netlogic XLR/XLS based systems"
>> 944 select BOOT_ELF32
>> 945 select NLM_COMMON
>> 946 select SYS_HAS_CPU_XLR
>> 947 select SYS_SUPPORTS_SMP
>> 948 select HAVE_PCI
>> 949 select SWAP_IO_SPACE
>> 950 select SYS_SUPPORTS_32BIT_KERNEL
>> 951 select SYS_SUPPORTS_64BIT_KERNEL
>> 952 select PHYS_ADDR_T_64BIT
>> 953 select SYS_SUPPORTS_BIG_ENDIAN
>> 954 select SYS_SUPPORTS_HIGHMEM
>> 955 select NR_CPUS_DEFAULT_32
>> 956 select CEVT_R4K
>> 957 select CSRC_R4K
>> 958 select IRQ_MIPS_CPU
>> 959 select ZONE_DMA32 if 64BIT
>> 960 select SYNC_R4K
>> 961 select SYS_HAS_EARLY_PRINTK
>> 962 select SYS_SUPPORTS_ZBOOT
>> 963 select SYS_SUPPORTS_ZBOOT_UART16550
>> 964 help
>> 965 Support for systems based on Netlogic XLR and XLS processors.
>> 966 Say Y here if you have a XLR or XLS based board.
>> 967
>> 968 config NLM_XLP_BOARD
>> 969 bool "Netlogic XLP based systems"
>> 970 select BOOT_ELF32
>> 971 select NLM_COMMON
>> 972 select SYS_HAS_CPU_XLP
>> 973 select SYS_SUPPORTS_SMP
>> 974 select HAVE_PCI
>> 975 select SYS_SUPPORTS_32BIT_KERNEL
>> 976 select SYS_SUPPORTS_64BIT_KERNEL
>> 977 select PHYS_ADDR_T_64BIT
>> 978 select GPIOLIB
>> 979 select SYS_SUPPORTS_BIG_ENDIAN
>> 980 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 981 select SYS_SUPPORTS_HIGHMEM
>> 982 select NR_CPUS_DEFAULT_32
>> 983 select CEVT_R4K
>> 984 select CSRC_R4K
>> 985 select IRQ_MIPS_CPU
>> 986 select ZONE_DMA32 if 64BIT
>> 987 select SYNC_R4K
>> 988 select SYS_HAS_EARLY_PRINTK
>> 989 select USE_OF
>> 990 select SYS_SUPPORTS_ZBOOT
>> 991 select SYS_SUPPORTS_ZBOOT_UART16550
>> 992 help
>> 993 This board is based on Netlogic XLP Processor.
>> 994 Say Y here if you have a XLP based board.
>> 995
>> 996 config MIPS_PARAVIRT
>> 997 bool "Para-Virtualized guest system"
>> 998 select CEVT_R4K
>> 999 select CSRC_R4K
>> 1000 select SYS_SUPPORTS_64BIT_KERNEL
>> 1001 select SYS_SUPPORTS_32BIT_KERNEL
>> 1002 select SYS_SUPPORTS_BIG_ENDIAN
>> 1003 select SYS_SUPPORTS_SMP
>> 1004 select NR_CPUS_DEFAULT_4
>> 1005 select SYS_HAS_EARLY_PRINTK
>> 1006 select SYS_HAS_CPU_MIPS32_R2
>> 1007 select SYS_HAS_CPU_MIPS64_R2
>> 1008 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 1009 select HAVE_PCI
>> 1010 select SWAP_IO_SPACE
>> 1011 help
>> 1012 This option supports guest running under ????
319 1013
320 config PPC_BARRIER_NOSPEC !! 1014 endchoice
>> 1015
>> 1016 source "arch/mips/alchemy/Kconfig"
>> 1017 source "arch/mips/ath25/Kconfig"
>> 1018 source "arch/mips/ath79/Kconfig"
>> 1019 source "arch/mips/bcm47xx/Kconfig"
>> 1020 source "arch/mips/bcm63xx/Kconfig"
>> 1021 source "arch/mips/bmips/Kconfig"
>> 1022 source "arch/mips/generic/Kconfig"
>> 1023 source "arch/mips/jazz/Kconfig"
>> 1024 source "arch/mips/jz4740/Kconfig"
>> 1025 source "arch/mips/lantiq/Kconfig"
>> 1026 source "arch/mips/lasat/Kconfig"
>> 1027 source "arch/mips/pic32/Kconfig"
>> 1028 source "arch/mips/pistachio/Kconfig"
>> 1029 source "arch/mips/pmcs-msp71xx/Kconfig"
>> 1030 source "arch/mips/ralink/Kconfig"
>> 1031 source "arch/mips/sgi-ip27/Kconfig"
>> 1032 source "arch/mips/sibyte/Kconfig"
>> 1033 source "arch/mips/txx9/Kconfig"
>> 1034 source "arch/mips/vr41xx/Kconfig"
>> 1035 source "arch/mips/cavium-octeon/Kconfig"
>> 1036 source "arch/mips/loongson32/Kconfig"
>> 1037 source "arch/mips/loongson64/Kconfig"
>> 1038 source "arch/mips/netlogic/Kconfig"
>> 1039 source "arch/mips/paravirt/Kconfig"
>> 1040
>> 1041 endmenu
>> 1042
>> 1043 config GENERIC_HWEIGHT
321 bool 1044 bool
322 default y 1045 default y
323 depends on PPC_BOOK3S_64 || PPC_E500 <<
324 1046
325 config PPC_HAS_LBARX_LHARX !! 1047 config GENERIC_CALIBRATE_DELAY
326 bool 1048 bool
>> 1049 default y
327 1050
328 config EARLY_PRINTK !! 1051 config SCHED_OMIT_FRAME_POINTER
329 bool 1052 bool
330 default y 1053 default y
331 1054
332 config PANIC_TIMEOUT !! 1055 #
333 int !! 1056 # Select some configuration options automatically based on user selections.
334 default 180 !! 1057 #
>> 1058 config FW_ARC
>> 1059 bool
335 1060
336 config COMPAT !! 1061 config ARCH_MAY_HAVE_PC_FDC
337 bool "Enable support for 32bit binarie !! 1062 bool
338 depends on PPC64 <<
339 default y if !CPU_LITTLE_ENDIAN <<
340 select ARCH_WANT_OLD_COMPAT_IPC <<
341 select COMPAT_OLD_SIGACTION <<
342 1063
343 config SCHED_OMIT_FRAME_POINTER !! 1064 config BOOT_RAW
344 bool 1065 bool
345 default y <<
346 1066
347 config ARCH_MAY_HAVE_PC_FDC !! 1067 config CEVT_BCM1480
348 bool 1068 bool
349 default PCI <<
350 1069
351 config PPC_UDBG_16550 !! 1070 config CEVT_DS1287
352 bool 1071 bool
353 1072
354 config GENERIC_TBSYNC !! 1073 config CEVT_GT641XX
355 bool 1074 bool
356 default y if PPC32 && SMP <<
357 1075
358 config AUDIT_ARCH !! 1076 config CEVT_R4K
359 bool 1077 bool
360 default y <<
361 1078
362 config GENERIC_BUG !! 1079 config CEVT_SB1250
>> 1080 bool
>> 1081
>> 1082 config CEVT_TXX9
>> 1083 bool
>> 1084
>> 1085 config CSRC_BCM1480
363 bool 1086 bool
364 default y <<
365 depends on BUG <<
366 1087
367 config GENERIC_BUG_RELATIVE_POINTERS !! 1088 config CSRC_IOASIC
>> 1089 bool
>> 1090
>> 1091 config CSRC_R4K
>> 1092 bool
>> 1093
>> 1094 config CSRC_SB1250
>> 1095 bool
>> 1096
>> 1097 config MIPS_CLOCK_VSYSCALL
>> 1098 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
>> 1099
>> 1100 config GPIO_TXX9
>> 1101 select GPIOLIB
>> 1102 bool
>> 1103
>> 1104 config FW_CFE
>> 1105 bool
>> 1106
>> 1107 config ARCH_SUPPORTS_UPROBES
>> 1108 bool
>> 1109
>> 1110 config DMA_MAYBE_COHERENT
>> 1111 select ARCH_HAS_DMA_COHERENCE_H
>> 1112 select DMA_NONCOHERENT
>> 1113 bool
>> 1114
>> 1115 config DMA_PERDEV_COHERENT
>> 1116 bool
>> 1117 select ARCH_HAS_SETUP_DMA_OPS
>> 1118 select DMA_NONCOHERENT
>> 1119
>> 1120 config DMA_NONCOHERENT
>> 1121 bool
>> 1122 select ARCH_HAS_DMA_MMAP_PGPROT
>> 1123 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>> 1124 select ARCH_HAS_UNCACHED_SEGMENT
>> 1125 select NEED_DMA_MAP_STATE
>> 1126 select ARCH_HAS_DMA_COHERENT_TO_PFN
>> 1127 select DMA_NONCOHERENT_CACHE_SYNC
>> 1128
>> 1129 config SYS_HAS_EARLY_PRINTK
>> 1130 bool
>> 1131
>> 1132 config SYS_SUPPORTS_HOTPLUG_CPU
>> 1133 bool
>> 1134
>> 1135 config MIPS_BONITO64
>> 1136 bool
>> 1137
>> 1138 config MIPS_MSC
>> 1139 bool
>> 1140
>> 1141 config MIPS_NILE4
>> 1142 bool
>> 1143
>> 1144 config SYNC_R4K
>> 1145 bool
>> 1146
>> 1147 config MIPS_MACHINE
>> 1148 def_bool n
>> 1149
>> 1150 config NO_IOPORT_MAP
>> 1151 def_bool n
>> 1152
>> 1153 config GENERIC_CSUM
>> 1154 bool
>> 1155 default y if !CPU_HAS_LOAD_STORE_LR
>> 1156
>> 1157 config GENERIC_ISA_DMA
>> 1158 bool
>> 1159 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
>> 1160 select ISA_DMA_API
>> 1161
>> 1162 config GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 1163 bool
>> 1164 select GENERIC_ISA_DMA
>> 1165
>> 1166 config ISA_DMA_API
>> 1167 bool
>> 1168
>> 1169 config HOLES_IN_ZONE
>> 1170 bool
>> 1171
>> 1172 config SYS_SUPPORTS_RELOCATABLE
>> 1173 bool
>> 1174 help
>> 1175 Selected if the platform supports relocating the kernel.
>> 1176 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
>> 1177 to allow access to command line and entropy sources.
>> 1178
>> 1179 config MIPS_CBPF_JIT
368 def_bool y 1180 def_bool y
369 depends on GENERIC_BUG !! 1181 depends on BPF_JIT && HAVE_CBPF_JIT
>> 1182
>> 1183 config MIPS_EBPF_JIT
>> 1184 def_bool y
>> 1185 depends on BPF_JIT && HAVE_EBPF_JIT
>> 1186
>> 1187
>> 1188 #
>> 1189 # Endianness selection. Sufficiently obscure so many users don't know what to
>> 1190 # answer,so we try hard to limit the available choices. Also the use of a
>> 1191 # choice statement should be more obvious to the user.
>> 1192 #
>> 1193 choice
>> 1194 prompt "Endianness selection"
>> 1195 help
>> 1196 Some MIPS machines can be configured for either little or big endian
>> 1197 byte order. These modes require different kernels and a different
>> 1198 Linux distribution. In general there is one preferred byteorder for a
>> 1199 particular system but some systems are just as commonly used in the
>> 1200 one or the other endianness.
>> 1201
>> 1202 config CPU_BIG_ENDIAN
>> 1203 bool "Big endian"
>> 1204 depends on SYS_SUPPORTS_BIG_ENDIAN
>> 1205
>> 1206 config CPU_LITTLE_ENDIAN
>> 1207 bool "Little endian"
>> 1208 depends on SYS_SUPPORTS_LITTLE_ENDIAN
>> 1209
>> 1210 endchoice
>> 1211
>> 1212 config EXPORT_UASM
>> 1213 bool
370 1214
371 config SYS_SUPPORTS_APM_EMULATION 1215 config SYS_SUPPORTS_APM_EMULATION
372 default y if PMAC_APM_EMU <<
373 bool 1216 bool
374 1217
375 config EPAPR_BOOT !! 1218 config SYS_SUPPORTS_BIG_ENDIAN
376 bool 1219 bool
377 help <<
378 Used to allow a board to specify it <<
379 1220
380 config DEFAULT_UIMAGE !! 1221 config SYS_SUPPORTS_LITTLE_ENDIAN
381 bool 1222 bool
382 help <<
383 Used to allow a board to specify it <<
384 1223
385 config ARCH_HIBERNATION_POSSIBLE !! 1224 config SYS_SUPPORTS_HUGETLBFS
386 bool 1225 bool
>> 1226 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
387 default y 1227 default y
388 1228
389 config ARCH_SUSPEND_POSSIBLE !! 1229 config MIPS_HUGE_TLB_SUPPORT
390 def_bool y !! 1230 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
391 depends on ADB_PMU || PPC_EFIKA || PPC <<
392 (PPC_85xx && !PPC_E500MC) | <<
393 || 44x <<
394 1231
395 config ARCH_SUSPEND_NONZERO_CPU !! 1232 config IRQ_CPU_RM7K
396 def_bool y !! 1233 bool
397 depends on PPC_POWERNV || PPC_PSERIES <<
398 1234
399 config ARCH_HAS_ADD_PAGES !! 1235 config IRQ_MSP_SLP
400 def_bool y !! 1236 bool
401 depends on ARCH_ENABLE_MEMORY_HOTPLUG !! 1237
>> 1238 config IRQ_MSP_CIC
>> 1239 bool
>> 1240
>> 1241 config IRQ_TXX9
>> 1242 bool
>> 1243
>> 1244 config IRQ_GT641XX
>> 1245 bool
>> 1246
>> 1247 config PCI_GT64XXX_PCI0
>> 1248 bool
>> 1249
>> 1250 config PCI_XTALK_BRIDGE
>> 1251 bool
>> 1252
>> 1253 config NO_EXCEPT_FILL
>> 1254 bool
>> 1255
>> 1256 config SOC_EMMA2RH
>> 1257 bool
>> 1258 select CEVT_R4K
>> 1259 select CSRC_R4K
>> 1260 select DMA_NONCOHERENT
>> 1261 select IRQ_MIPS_CPU
>> 1262 select SWAP_IO_SPACE
>> 1263 select SYS_HAS_CPU_R5500
>> 1264 select SYS_SUPPORTS_32BIT_KERNEL
>> 1265 select SYS_SUPPORTS_64BIT_KERNEL
>> 1266 select SYS_SUPPORTS_BIG_ENDIAN
>> 1267
>> 1268 config SOC_PNX833X
>> 1269 bool
>> 1270 select CEVT_R4K
>> 1271 select CSRC_R4K
>> 1272 select IRQ_MIPS_CPU
>> 1273 select DMA_NONCOHERENT
>> 1274 select SYS_HAS_CPU_MIPS32_R2
>> 1275 select SYS_SUPPORTS_32BIT_KERNEL
>> 1276 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 1277 select SYS_SUPPORTS_BIG_ENDIAN
>> 1278 select SYS_SUPPORTS_MIPS16
>> 1279 select CPU_MIPSR2_IRQ_VI
>> 1280
>> 1281 config SOC_PNX8335
>> 1282 bool
>> 1283 select SOC_PNX833X
>> 1284
>> 1285 config MIPS_SPRAM
>> 1286 bool
>> 1287
>> 1288 config SWAP_IO_SPACE
>> 1289 bool
>> 1290
>> 1291 config SGI_HAS_INDYDOG
>> 1292 bool
>> 1293
>> 1294 config SGI_HAS_HAL2
>> 1295 bool
>> 1296
>> 1297 config SGI_HAS_SEEQ
>> 1298 bool
>> 1299
>> 1300 config SGI_HAS_WD93
>> 1301 bool
>> 1302
>> 1303 config SGI_HAS_ZILOG
>> 1304 bool
402 1305
403 config PPC_DCR_NATIVE !! 1306 config SGI_HAS_I8042
404 bool 1307 bool
405 1308
406 config PPC_DCR_MMIO !! 1309 config DEFAULT_SGI_PARTITION
407 bool 1310 bool
408 1311
409 config PPC_DCR !! 1312 config FW_ARC32
410 bool 1313 bool
411 depends on PPC_DCR_NATIVE || PPC_DCR_M !! 1314
>> 1315 config FW_SNIPROM
>> 1316 bool
>> 1317
>> 1318 config BOOT_ELF32
>> 1319 bool
>> 1320
>> 1321 config MIPS_L1_CACHE_SHIFT_4
>> 1322 bool
>> 1323
>> 1324 config MIPS_L1_CACHE_SHIFT_5
>> 1325 bool
>> 1326
>> 1327 config MIPS_L1_CACHE_SHIFT_6
>> 1328 bool
>> 1329
>> 1330 config MIPS_L1_CACHE_SHIFT_7
>> 1331 bool
>> 1332
>> 1333 config MIPS_L1_CACHE_SHIFT
>> 1334 int
>> 1335 default "7" if MIPS_L1_CACHE_SHIFT_7
>> 1336 default "6" if MIPS_L1_CACHE_SHIFT_6
>> 1337 default "5" if MIPS_L1_CACHE_SHIFT_5
>> 1338 default "4" if MIPS_L1_CACHE_SHIFT_4
>> 1339 default "5"
>> 1340
>> 1341 config HAVE_STD_PC_SERIAL_PORT
>> 1342 bool
>> 1343
>> 1344 config ARC_CONSOLE
>> 1345 bool "ARC console support"
>> 1346 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
>> 1347
>> 1348 config ARC_MEMORY
>> 1349 bool
>> 1350 depends on MACH_JAZZ || SNI_RM || SGI_IP32
>> 1351 default y
>> 1352
>> 1353 config ARC_PROMLIB
>> 1354 bool
>> 1355 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
412 default y 1356 default y
413 1357
414 config PPC_PCI_OF_BUS_MAP !! 1358 config FW_ARC64
415 bool "Use pci_to_OF_bus_map (deprecate !! 1359 bool
416 depends on PPC32 !! 1360
417 depends on PPC_PMAC || PPC_CHRP !! 1361 config BOOT_ELF64
>> 1362 bool
>> 1363
>> 1364 menu "CPU selection"
>> 1365
>> 1366 choice
>> 1367 prompt "CPU type"
>> 1368 default CPU_R4X00
>> 1369
>> 1370 config CPU_LOONGSON3
>> 1371 bool "Loongson 3 CPU"
>> 1372 depends on SYS_HAS_CPU_LOONGSON3
>> 1373 select ARCH_HAS_PHYS_TO_DMA
>> 1374 select CPU_SUPPORTS_64BIT_KERNEL
>> 1375 select CPU_SUPPORTS_HIGHMEM
>> 1376 select CPU_SUPPORTS_HUGEPAGES
>> 1377 select CPU_HAS_LOAD_STORE_LR
>> 1378 select WEAK_ORDERING
>> 1379 select WEAK_REORDERING_BEYOND_LLSC
>> 1380 select MIPS_PGD_C0_CONTEXT
>> 1381 select MIPS_L1_CACHE_SHIFT_6
>> 1382 select GPIOLIB
>> 1383 select SWIOTLB
418 help 1384 help
419 This option uses pci_to_OF_bus_map t !! 1385 The Loongson 3 processor implements the MIPS64R2 instruction
420 restricts the system to only having !! 1386 set with many extensions.
421 the "pci-OF-bus-map" property to be !! 1387
>> 1388 config LOONGSON3_ENHANCEMENT
>> 1389 bool "New Loongson 3 CPU Enhancements"
>> 1390 default n
>> 1391 select CPU_MIPSR2
>> 1392 select CPU_HAS_PREFETCH
>> 1393 depends on CPU_LOONGSON3
>> 1394 help
>> 1395 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
>> 1396 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
>> 1397 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
>> 1398 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
>> 1399 Fast TLB refill support, etc.
>> 1400
>> 1401 This option enable those enhancements which are not probed at run
>> 1402 time. If you want a generic kernel to run on all Loongson 3 machines,
>> 1403 please say 'N' here. If you want a high-performance kernel to run on
>> 1404 new Loongson 3 machines only, please say 'Y' here.
>> 1405
>> 1406 config CPU_LOONGSON3_WORKAROUNDS
>> 1407 bool "Old Loongson 3 LLSC Workarounds"
>> 1408 default y if SMP
>> 1409 depends on CPU_LOONGSON3
>> 1410 help
>> 1411 Loongson 3 processors have the llsc issues which require workarounds.
>> 1412 Without workarounds the system may hang unexpectedly.
>> 1413
>> 1414 Newer Loongson 3 will fix these issues and no workarounds are needed.
>> 1415 The workarounds have no significant side effect on them but may
>> 1416 decrease the performance of the system so this option should be
>> 1417 disabled unless the kernel is intended to be run on old systems.
>> 1418
>> 1419 If unsure, please say Y.
>> 1420
>> 1421 config CPU_LOONGSON2E
>> 1422 bool "Loongson 2E"
>> 1423 depends on SYS_HAS_CPU_LOONGSON2E
>> 1424 select CPU_LOONGSON2
>> 1425 help
>> 1426 The Loongson 2E processor implements the MIPS III instruction set
>> 1427 with many extensions.
>> 1428
>> 1429 It has an internal FPGA northbridge, which is compatible to
>> 1430 bonito64.
>> 1431
>> 1432 config CPU_LOONGSON2F
>> 1433 bool "Loongson 2F"
>> 1434 depends on SYS_HAS_CPU_LOONGSON2F
>> 1435 select CPU_LOONGSON2
>> 1436 select GPIOLIB
>> 1437 help
>> 1438 The Loongson 2F processor implements the MIPS III instruction set
>> 1439 with many extensions.
>> 1440
>> 1441 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
>> 1442 have a similar programming interface with FPGA northbridge used in
>> 1443 Loongson2E.
>> 1444
>> 1445 config CPU_LOONGSON1B
>> 1446 bool "Loongson 1B"
>> 1447 depends on SYS_HAS_CPU_LOONGSON1B
>> 1448 select CPU_LOONGSON1
>> 1449 select LEDS_GPIO_REGISTER
>> 1450 help
>> 1451 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
>> 1452 Release 1 instruction set and part of the MIPS32 Release 2
>> 1453 instruction set.
>> 1454
>> 1455 config CPU_LOONGSON1C
>> 1456 bool "Loongson 1C"
>> 1457 depends on SYS_HAS_CPU_LOONGSON1C
>> 1458 select CPU_LOONGSON1
>> 1459 select LEDS_GPIO_REGISTER
>> 1460 help
>> 1461 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
>> 1462 Release 1 instruction set and part of the MIPS32 Release 2
>> 1463 instruction set.
>> 1464
>> 1465 config CPU_MIPS32_R1
>> 1466 bool "MIPS32 Release 1"
>> 1467 depends on SYS_HAS_CPU_MIPS32_R1
>> 1468 select CPU_HAS_PREFETCH
>> 1469 select CPU_HAS_LOAD_STORE_LR
>> 1470 select CPU_SUPPORTS_32BIT_KERNEL
>> 1471 select CPU_SUPPORTS_HIGHMEM
>> 1472 help
>> 1473 Choose this option to build a kernel for release 1 or later of the
>> 1474 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1475 MIPS processor are based on a MIPS32 processor. If you know the
>> 1476 specific type of processor in your system, choose those that one
>> 1477 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1478 Release 2 of the MIPS32 architecture is available since several
>> 1479 years so chances are you even have a MIPS32 Release 2 processor
>> 1480 in which case you should choose CPU_MIPS32_R2 instead for better
>> 1481 performance.
>> 1482
>> 1483 config CPU_MIPS32_R2
>> 1484 bool "MIPS32 Release 2"
>> 1485 depends on SYS_HAS_CPU_MIPS32_R2
>> 1486 select CPU_HAS_PREFETCH
>> 1487 select CPU_HAS_LOAD_STORE_LR
>> 1488 select CPU_SUPPORTS_32BIT_KERNEL
>> 1489 select CPU_SUPPORTS_HIGHMEM
>> 1490 select CPU_SUPPORTS_MSA
>> 1491 select HAVE_KVM
>> 1492 help
>> 1493 Choose this option to build a kernel for release 2 or later of the
>> 1494 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1495 MIPS processor are based on a MIPS32 processor. If you know the
>> 1496 specific type of processor in your system, choose those that one
>> 1497 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1498
>> 1499 config CPU_MIPS32_R6
>> 1500 bool "MIPS32 Release 6"
>> 1501 depends on SYS_HAS_CPU_MIPS32_R6
>> 1502 select CPU_HAS_PREFETCH
>> 1503 select CPU_SUPPORTS_32BIT_KERNEL
>> 1504 select CPU_SUPPORTS_HIGHMEM
>> 1505 select CPU_SUPPORTS_MSA
>> 1506 select HAVE_KVM
>> 1507 select MIPS_O32_FP64_SUPPORT
>> 1508 help
>> 1509 Choose this option to build a kernel for release 6 or later of the
>> 1510 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1511 family, are based on a MIPS32r6 processor. If you own an older
>> 1512 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1513
>> 1514 config CPU_MIPS64_R1
>> 1515 bool "MIPS64 Release 1"
>> 1516 depends on SYS_HAS_CPU_MIPS64_R1
>> 1517 select CPU_HAS_PREFETCH
>> 1518 select CPU_HAS_LOAD_STORE_LR
>> 1519 select CPU_SUPPORTS_32BIT_KERNEL
>> 1520 select CPU_SUPPORTS_64BIT_KERNEL
>> 1521 select CPU_SUPPORTS_HIGHMEM
>> 1522 select CPU_SUPPORTS_HUGEPAGES
>> 1523 help
>> 1524 Choose this option to build a kernel for release 1 or later of the
>> 1525 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1526 MIPS processor are based on a MIPS64 processor. If you know the
>> 1527 specific type of processor in your system, choose those that one
>> 1528 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1529 Release 2 of the MIPS64 architecture is available since several
>> 1530 years so chances are you even have a MIPS64 Release 2 processor
>> 1531 in which case you should choose CPU_MIPS64_R2 instead for better
>> 1532 performance.
>> 1533
>> 1534 config CPU_MIPS64_R2
>> 1535 bool "MIPS64 Release 2"
>> 1536 depends on SYS_HAS_CPU_MIPS64_R2
>> 1537 select CPU_HAS_PREFETCH
>> 1538 select CPU_HAS_LOAD_STORE_LR
>> 1539 select CPU_SUPPORTS_32BIT_KERNEL
>> 1540 select CPU_SUPPORTS_64BIT_KERNEL
>> 1541 select CPU_SUPPORTS_HIGHMEM
>> 1542 select CPU_SUPPORTS_HUGEPAGES
>> 1543 select CPU_SUPPORTS_MSA
>> 1544 select HAVE_KVM
>> 1545 help
>> 1546 Choose this option to build a kernel for release 2 or later of the
>> 1547 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1548 MIPS processor are based on a MIPS64 processor. If you know the
>> 1549 specific type of processor in your system, choose those that one
>> 1550 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1551
>> 1552 config CPU_MIPS64_R6
>> 1553 bool "MIPS64 Release 6"
>> 1554 depends on SYS_HAS_CPU_MIPS64_R6
>> 1555 select CPU_HAS_PREFETCH
>> 1556 select CPU_SUPPORTS_32BIT_KERNEL
>> 1557 select CPU_SUPPORTS_64BIT_KERNEL
>> 1558 select CPU_SUPPORTS_HIGHMEM
>> 1559 select CPU_SUPPORTS_HUGEPAGES
>> 1560 select CPU_SUPPORTS_MSA
>> 1561 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1562 select HAVE_KVM
>> 1563 help
>> 1564 Choose this option to build a kernel for release 6 or later of the
>> 1565 MIPS64 architecture. New MIPS processors, starting with the Warrior
>> 1566 family, are based on a MIPS64r6 processor. If you own an older
>> 1567 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
>> 1568
>> 1569 config CPU_R3000
>> 1570 bool "R3000"
>> 1571 depends on SYS_HAS_CPU_R3000
>> 1572 select CPU_HAS_WB
>> 1573 select CPU_HAS_LOAD_STORE_LR
>> 1574 select CPU_SUPPORTS_32BIT_KERNEL
>> 1575 select CPU_SUPPORTS_HIGHMEM
>> 1576 help
>> 1577 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 1578 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 1579 *not* work on R4000 machines and vice versa. However, since most
>> 1580 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 1581 might be a safe bet. If the resulting kernel does not work,
>> 1582 try to recompile with R3000.
>> 1583
>> 1584 config CPU_TX39XX
>> 1585 bool "R39XX"
>> 1586 depends on SYS_HAS_CPU_TX39XX
>> 1587 select CPU_SUPPORTS_32BIT_KERNEL
>> 1588 select CPU_HAS_LOAD_STORE_LR
>> 1589
>> 1590 config CPU_VR41XX
>> 1591 bool "R41xx"
>> 1592 depends on SYS_HAS_CPU_VR41XX
>> 1593 select CPU_SUPPORTS_32BIT_KERNEL
>> 1594 select CPU_SUPPORTS_64BIT_KERNEL
>> 1595 select CPU_HAS_LOAD_STORE_LR
>> 1596 help
>> 1597 The options selects support for the NEC VR4100 series of processors.
>> 1598 Only choose this option if you have one of these processors as a
>> 1599 kernel built with this option will not run on any other type of
>> 1600 processor or vice versa.
>> 1601
>> 1602 config CPU_R4300
>> 1603 bool "R4300"
>> 1604 depends on SYS_HAS_CPU_R4300
>> 1605 select CPU_SUPPORTS_32BIT_KERNEL
>> 1606 select CPU_SUPPORTS_64BIT_KERNEL
>> 1607 select CPU_HAS_LOAD_STORE_LR
>> 1608 help
>> 1609 MIPS Technologies R4300-series processors.
>> 1610
>> 1611 config CPU_R4X00
>> 1612 bool "R4x00"
>> 1613 depends on SYS_HAS_CPU_R4X00
>> 1614 select CPU_SUPPORTS_32BIT_KERNEL
>> 1615 select CPU_SUPPORTS_64BIT_KERNEL
>> 1616 select CPU_SUPPORTS_HUGEPAGES
>> 1617 select CPU_HAS_LOAD_STORE_LR
>> 1618 help
>> 1619 MIPS Technologies R4000-series processors other than 4300, including
>> 1620 the R4000, R4400, R4600, and 4700.
>> 1621
>> 1622 config CPU_TX49XX
>> 1623 bool "R49XX"
>> 1624 depends on SYS_HAS_CPU_TX49XX
>> 1625 select CPU_HAS_PREFETCH
>> 1626 select CPU_HAS_LOAD_STORE_LR
>> 1627 select CPU_SUPPORTS_32BIT_KERNEL
>> 1628 select CPU_SUPPORTS_64BIT_KERNEL
>> 1629 select CPU_SUPPORTS_HUGEPAGES
>> 1630
>> 1631 config CPU_R5000
>> 1632 bool "R5000"
>> 1633 depends on SYS_HAS_CPU_R5000
>> 1634 select CPU_SUPPORTS_32BIT_KERNEL
>> 1635 select CPU_SUPPORTS_64BIT_KERNEL
>> 1636 select CPU_SUPPORTS_HUGEPAGES
>> 1637 select CPU_HAS_LOAD_STORE_LR
>> 1638 help
>> 1639 MIPS Technologies R5000-series processors other than the Nevada.
>> 1640
>> 1641 config CPU_R5432
>> 1642 bool "R5432"
>> 1643 depends on SYS_HAS_CPU_R5432
>> 1644 select CPU_SUPPORTS_32BIT_KERNEL
>> 1645 select CPU_SUPPORTS_64BIT_KERNEL
>> 1646 select CPU_SUPPORTS_HUGEPAGES
>> 1647 select CPU_HAS_LOAD_STORE_LR
>> 1648
>> 1649 config CPU_R5500
>> 1650 bool "R5500"
>> 1651 depends on SYS_HAS_CPU_R5500
>> 1652 select CPU_SUPPORTS_32BIT_KERNEL
>> 1653 select CPU_SUPPORTS_64BIT_KERNEL
>> 1654 select CPU_SUPPORTS_HUGEPAGES
>> 1655 select CPU_HAS_LOAD_STORE_LR
>> 1656 help
>> 1657 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
>> 1658 instruction set.
>> 1659
>> 1660 config CPU_NEVADA
>> 1661 bool "RM52xx"
>> 1662 depends on SYS_HAS_CPU_NEVADA
>> 1663 select CPU_SUPPORTS_32BIT_KERNEL
>> 1664 select CPU_SUPPORTS_64BIT_KERNEL
>> 1665 select CPU_SUPPORTS_HUGEPAGES
>> 1666 select CPU_HAS_LOAD_STORE_LR
>> 1667 help
>> 1668 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
>> 1669
>> 1670 config CPU_R8000
>> 1671 bool "R8000"
>> 1672 depends on SYS_HAS_CPU_R8000
>> 1673 select CPU_HAS_PREFETCH
>> 1674 select CPU_HAS_LOAD_STORE_LR
>> 1675 select CPU_SUPPORTS_64BIT_KERNEL
>> 1676 help
>> 1677 MIPS Technologies R8000 processors. Note these processors are
>> 1678 uncommon and the support for them is incomplete.
>> 1679
>> 1680 config CPU_R10000
>> 1681 bool "R10000"
>> 1682 depends on SYS_HAS_CPU_R10000
>> 1683 select CPU_HAS_PREFETCH
>> 1684 select CPU_HAS_LOAD_STORE_LR
>> 1685 select CPU_SUPPORTS_32BIT_KERNEL
>> 1686 select CPU_SUPPORTS_64BIT_KERNEL
>> 1687 select CPU_SUPPORTS_HIGHMEM
>> 1688 select CPU_SUPPORTS_HUGEPAGES
>> 1689 help
>> 1690 MIPS Technologies R10000-series processors.
>> 1691
>> 1692 config CPU_RM7000
>> 1693 bool "RM7000"
>> 1694 depends on SYS_HAS_CPU_RM7000
>> 1695 select CPU_HAS_PREFETCH
>> 1696 select CPU_HAS_LOAD_STORE_LR
>> 1697 select CPU_SUPPORTS_32BIT_KERNEL
>> 1698 select CPU_SUPPORTS_64BIT_KERNEL
>> 1699 select CPU_SUPPORTS_HIGHMEM
>> 1700 select CPU_SUPPORTS_HUGEPAGES
>> 1701
>> 1702 config CPU_SB1
>> 1703 bool "SB1"
>> 1704 depends on SYS_HAS_CPU_SB1
>> 1705 select CPU_HAS_LOAD_STORE_LR
>> 1706 select CPU_SUPPORTS_32BIT_KERNEL
>> 1707 select CPU_SUPPORTS_64BIT_KERNEL
>> 1708 select CPU_SUPPORTS_HIGHMEM
>> 1709 select CPU_SUPPORTS_HUGEPAGES
>> 1710 select WEAK_ORDERING
>> 1711
>> 1712 config CPU_CAVIUM_OCTEON
>> 1713 bool "Cavium Octeon processor"
>> 1714 depends on SYS_HAS_CPU_CAVIUM_OCTEON
>> 1715 select CPU_HAS_PREFETCH
>> 1716 select CPU_HAS_LOAD_STORE_LR
>> 1717 select CPU_SUPPORTS_64BIT_KERNEL
>> 1718 select WEAK_ORDERING
>> 1719 select CPU_SUPPORTS_HIGHMEM
>> 1720 select CPU_SUPPORTS_HUGEPAGES
>> 1721 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1722 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1723 select MIPS_L1_CACHE_SHIFT_7
>> 1724 select HAVE_KVM
>> 1725 help
>> 1726 The Cavium Octeon processor is a highly integrated chip containing
>> 1727 many ethernet hardware widgets for networking tasks. The processor
>> 1728 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
>> 1729 Full details can be found at http://www.caviumnetworks.com.
>> 1730
>> 1731 config CPU_BMIPS
>> 1732 bool "Broadcom BMIPS"
>> 1733 depends on SYS_HAS_CPU_BMIPS
>> 1734 select CPU_MIPS32
>> 1735 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
>> 1736 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
>> 1737 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
>> 1738 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
>> 1739 select CPU_SUPPORTS_32BIT_KERNEL
>> 1740 select DMA_NONCOHERENT
>> 1741 select IRQ_MIPS_CPU
>> 1742 select SWAP_IO_SPACE
>> 1743 select WEAK_ORDERING
>> 1744 select CPU_SUPPORTS_HIGHMEM
>> 1745 select CPU_HAS_PREFETCH
>> 1746 select CPU_HAS_LOAD_STORE_LR
>> 1747 select CPU_SUPPORTS_CPUFREQ
>> 1748 select MIPS_EXTERNAL_TIMER
>> 1749 help
>> 1750 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
>> 1751
>> 1752 config CPU_XLR
>> 1753 bool "Netlogic XLR SoC"
>> 1754 depends on SYS_HAS_CPU_XLR
>> 1755 select CPU_HAS_LOAD_STORE_LR
>> 1756 select CPU_SUPPORTS_32BIT_KERNEL
>> 1757 select CPU_SUPPORTS_64BIT_KERNEL
>> 1758 select CPU_SUPPORTS_HIGHMEM
>> 1759 select CPU_SUPPORTS_HUGEPAGES
>> 1760 select WEAK_ORDERING
>> 1761 select WEAK_REORDERING_BEYOND_LLSC
>> 1762 help
>> 1763 Netlogic Microsystems XLR/XLS processors.
>> 1764
>> 1765 config CPU_XLP
>> 1766 bool "Netlogic XLP SoC"
>> 1767 depends on SYS_HAS_CPU_XLP
>> 1768 select CPU_SUPPORTS_32BIT_KERNEL
>> 1769 select CPU_SUPPORTS_64BIT_KERNEL
>> 1770 select CPU_SUPPORTS_HIGHMEM
>> 1771 select WEAK_ORDERING
>> 1772 select WEAK_REORDERING_BEYOND_LLSC
>> 1773 select CPU_HAS_PREFETCH
>> 1774 select CPU_HAS_LOAD_STORE_LR
>> 1775 select CPU_MIPSR2
>> 1776 select CPU_SUPPORTS_HUGEPAGES
>> 1777 select MIPS_ASID_BITS_VARIABLE
>> 1778 help
>> 1779 Netlogic Microsystems XLP processors.
>> 1780 endchoice
>> 1781
>> 1782 config CPU_MIPS32_3_5_FEATURES
>> 1783 bool "MIPS32 Release 3.5 Features"
>> 1784 depends on SYS_HAS_CPU_MIPS32_R3_5
>> 1785 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
>> 1786 help
>> 1787 Choose this option to build a kernel for release 2 or later of the
>> 1788 MIPS32 architecture including features from the 3.5 release such as
>> 1789 support for Enhanced Virtual Addressing (EVA).
>> 1790
>> 1791 config CPU_MIPS32_3_5_EVA
>> 1792 bool "Enhanced Virtual Addressing (EVA)"
>> 1793 depends on CPU_MIPS32_3_5_FEATURES
>> 1794 select EVA
>> 1795 default y
>> 1796 help
>> 1797 Choose this option if you want to enable the Enhanced Virtual
>> 1798 Addressing (EVA) on your MIPS32 core (such as proAptiv).
>> 1799 One of its primary benefits is an increase in the maximum size
>> 1800 of lowmem (up to 3GB). If unsure, say 'N' here.
>> 1801
>> 1802 config CPU_MIPS32_R5_FEATURES
>> 1803 bool "MIPS32 Release 5 Features"
>> 1804 depends on SYS_HAS_CPU_MIPS32_R5
>> 1805 depends on CPU_MIPS32_R2
>> 1806 help
>> 1807 Choose this option to build a kernel for release 2 or later of the
>> 1808 MIPS32 architecture including features from release 5 such as
>> 1809 support for Extended Physical Addressing (XPA).
>> 1810
>> 1811 config CPU_MIPS32_R5_XPA
>> 1812 bool "Extended Physical Addressing (XPA)"
>> 1813 depends on CPU_MIPS32_R5_FEATURES
>> 1814 depends on !EVA
>> 1815 depends on !PAGE_SIZE_4KB
>> 1816 depends on SYS_SUPPORTS_HIGHMEM
>> 1817 select XPA
>> 1818 select HIGHMEM
>> 1819 select PHYS_ADDR_T_64BIT
>> 1820 default n
>> 1821 help
>> 1822 Choose this option if you want to enable the Extended Physical
>> 1823 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
>> 1824 benefit is to increase physical addressing equal to or greater
>> 1825 than 40 bits. Note that this has the side effect of turning on
>> 1826 64-bit addressing which in turn makes the PTEs 64-bit in size.
>> 1827 If unsure, say 'N' here.
>> 1828
>> 1829 if CPU_LOONGSON2F
>> 1830 config CPU_NOP_WORKAROUNDS
>> 1831 bool
422 1832
423 If unsure, say "N". !! 1833 config CPU_JUMP_WORKAROUNDS
>> 1834 bool
424 1835
425 config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT !! 1836 config CPU_LOONGSON2F_WORKAROUNDS
426 depends on PPC32 !! 1837 bool "Loongson 2F Workarounds"
427 depends on !PPC_PCI_OF_BUS_MAP <<
428 bool "Assign PCI bus numbers from zero <<
429 default y 1838 default y
>> 1839 select CPU_NOP_WORKAROUNDS
>> 1840 select CPU_JUMP_WORKAROUNDS
430 help 1841 help
431 By default on PPC32 were PCI bus num !! 1842 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
432 So system could have only 256 PCI bu !! 1843 require workarounds. Without workarounds the system may hang
433 PCI domains. When this option is ena !! 1844 unexpectedly. For more information please refer to the gas
434 PCI domain dependent and each PCI co !! 1845 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
435 256 PCI buses, like it is on other L !! 1846
>> 1847 Loongson 2F03 and later have fixed these issues and no workarounds
>> 1848 are needed. The workarounds have no significant side effect on them
>> 1849 but may decrease the performance of the system so this option should
>> 1850 be disabled unless the kernel is intended to be run on 2F01 or 2F02
>> 1851 systems.
436 1852
437 config PPC_OF_PLATFORM_PCI !! 1853 If unsure, please say Y.
>> 1854 endif # CPU_LOONGSON2F
>> 1855
>> 1856 config SYS_SUPPORTS_ZBOOT
438 bool 1857 bool
439 depends on PCI !! 1858 select HAVE_KERNEL_GZIP
440 depends on PPC64 # not supported on 32 !! 1859 select HAVE_KERNEL_BZIP2
>> 1860 select HAVE_KERNEL_LZ4
>> 1861 select HAVE_KERNEL_LZMA
>> 1862 select HAVE_KERNEL_LZO
>> 1863 select HAVE_KERNEL_XZ
441 1864
442 config ARCH_SUPPORTS_UPROBES !! 1865 config SYS_SUPPORTS_ZBOOT_UART16550
443 def_bool y !! 1866 bool
>> 1867 select SYS_SUPPORTS_ZBOOT
444 1868
445 config PPC_ADV_DEBUG_REGS !! 1869 config SYS_SUPPORTS_ZBOOT_UART_PROM
446 bool 1870 bool
447 depends on BOOKE !! 1871 select SYS_SUPPORTS_ZBOOT
448 default y <<
449 1872
450 config PPC_ADV_DEBUG_IACS !! 1873 config CPU_LOONGSON2
451 int !! 1874 bool
452 depends on PPC_ADV_DEBUG_REGS !! 1875 select CPU_SUPPORTS_32BIT_KERNEL
453 default 4 if 44x !! 1876 select CPU_SUPPORTS_64BIT_KERNEL
454 default 2 !! 1877 select CPU_SUPPORTS_HIGHMEM
>> 1878 select CPU_SUPPORTS_HUGEPAGES
>> 1879 select ARCH_HAS_PHYS_TO_DMA
>> 1880 select CPU_HAS_LOAD_STORE_LR
455 1881
456 config PPC_ADV_DEBUG_DACS !! 1882 config CPU_LOONGSON1
457 int !! 1883 bool
458 depends on PPC_ADV_DEBUG_REGS !! 1884 select CPU_MIPS32
459 default 2 !! 1885 select CPU_MIPSR2
>> 1886 select CPU_HAS_PREFETCH
>> 1887 select CPU_HAS_LOAD_STORE_LR
>> 1888 select CPU_SUPPORTS_32BIT_KERNEL
>> 1889 select CPU_SUPPORTS_HIGHMEM
>> 1890 select CPU_SUPPORTS_CPUFREQ
460 1891
461 config PPC_ADV_DEBUG_DVCS !! 1892 config CPU_BMIPS32_3300
462 int !! 1893 select SMP_UP if SMP
463 depends on PPC_ADV_DEBUG_REGS !! 1894 bool
464 default 2 if 44x <<
465 default 0 <<
466 1895
467 config PPC_ADV_DEBUG_DAC_RANGE !! 1896 config CPU_BMIPS4350
468 bool 1897 bool
469 depends on PPC_ADV_DEBUG_REGS && 44x !! 1898 select SYS_SUPPORTS_SMP
470 default y !! 1899 select SYS_SUPPORTS_HOTPLUG_CPU
471 1900
472 config PPC_DAWR !! 1901 config CPU_BMIPS4380
473 bool 1902 bool
>> 1903 select MIPS_L1_CACHE_SHIFT_6
>> 1904 select SYS_SUPPORTS_SMP
>> 1905 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1906 select CPU_HAS_RIXI
474 1907
475 config PGTABLE_LEVELS !! 1908 config CPU_BMIPS5000
>> 1909 bool
>> 1910 select MIPS_CPU_SCACHE
>> 1911 select MIPS_L1_CACHE_SHIFT_7
>> 1912 select SYS_SUPPORTS_SMP
>> 1913 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1914 select CPU_HAS_RIXI
>> 1915
>> 1916 config SYS_HAS_CPU_LOONGSON3
>> 1917 bool
>> 1918 select CPU_SUPPORTS_CPUFREQ
>> 1919 select CPU_HAS_RIXI
>> 1920
>> 1921 config SYS_HAS_CPU_LOONGSON2E
>> 1922 bool
>> 1923
>> 1924 config SYS_HAS_CPU_LOONGSON2F
>> 1925 bool
>> 1926 select CPU_SUPPORTS_CPUFREQ
>> 1927 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
>> 1928 select CPU_SUPPORTS_UNCACHED_ACCELERATED
>> 1929
>> 1930 config SYS_HAS_CPU_LOONGSON1B
>> 1931 bool
>> 1932
>> 1933 config SYS_HAS_CPU_LOONGSON1C
>> 1934 bool
>> 1935
>> 1936 config SYS_HAS_CPU_MIPS32_R1
>> 1937 bool
>> 1938
>> 1939 config SYS_HAS_CPU_MIPS32_R2
>> 1940 bool
>> 1941
>> 1942 config SYS_HAS_CPU_MIPS32_R3_5
>> 1943 bool
>> 1944
>> 1945 config SYS_HAS_CPU_MIPS32_R5
>> 1946 bool
>> 1947 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 1948
>> 1949 config SYS_HAS_CPU_MIPS32_R6
>> 1950 bool
>> 1951 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 1952
>> 1953 config SYS_HAS_CPU_MIPS64_R1
>> 1954 bool
>> 1955
>> 1956 config SYS_HAS_CPU_MIPS64_R2
>> 1957 bool
>> 1958
>> 1959 config SYS_HAS_CPU_MIPS64_R6
>> 1960 bool
>> 1961 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 1962
>> 1963 config SYS_HAS_CPU_R3000
>> 1964 bool
>> 1965
>> 1966 config SYS_HAS_CPU_TX39XX
>> 1967 bool
>> 1968
>> 1969 config SYS_HAS_CPU_VR41XX
>> 1970 bool
>> 1971
>> 1972 config SYS_HAS_CPU_R4300
>> 1973 bool
>> 1974
>> 1975 config SYS_HAS_CPU_R4X00
>> 1976 bool
>> 1977
>> 1978 config SYS_HAS_CPU_TX49XX
>> 1979 bool
>> 1980
>> 1981 config SYS_HAS_CPU_R5000
>> 1982 bool
>> 1983
>> 1984 config SYS_HAS_CPU_R5432
>> 1985 bool
>> 1986
>> 1987 config SYS_HAS_CPU_R5500
>> 1988 bool
>> 1989
>> 1990 config SYS_HAS_CPU_NEVADA
>> 1991 bool
>> 1992
>> 1993 config SYS_HAS_CPU_R8000
>> 1994 bool
>> 1995
>> 1996 config SYS_HAS_CPU_R10000
>> 1997 bool
>> 1998 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 1999
>> 2000 config SYS_HAS_CPU_RM7000
>> 2001 bool
>> 2002
>> 2003 config SYS_HAS_CPU_SB1
>> 2004 bool
>> 2005
>> 2006 config SYS_HAS_CPU_CAVIUM_OCTEON
>> 2007 bool
>> 2008
>> 2009 config SYS_HAS_CPU_BMIPS
>> 2010 bool
>> 2011
>> 2012 config SYS_HAS_CPU_BMIPS32_3300
>> 2013 bool
>> 2014 select SYS_HAS_CPU_BMIPS
>> 2015
>> 2016 config SYS_HAS_CPU_BMIPS4350
>> 2017 bool
>> 2018 select SYS_HAS_CPU_BMIPS
>> 2019
>> 2020 config SYS_HAS_CPU_BMIPS4380
>> 2021 bool
>> 2022 select SYS_HAS_CPU_BMIPS
>> 2023
>> 2024 config SYS_HAS_CPU_BMIPS5000
>> 2025 bool
>> 2026 select SYS_HAS_CPU_BMIPS
>> 2027 select ARCH_HAS_SYNC_DMA_FOR_CPU
>> 2028
>> 2029 config SYS_HAS_CPU_XLR
>> 2030 bool
>> 2031
>> 2032 config SYS_HAS_CPU_XLP
>> 2033 bool
>> 2034
>> 2035 #
>> 2036 # CPU may reorder R->R, R->W, W->R, W->W
>> 2037 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
>> 2038 #
>> 2039 config WEAK_ORDERING
>> 2040 bool
>> 2041
>> 2042 #
>> 2043 # CPU may reorder reads and writes beyond LL/SC
>> 2044 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
>> 2045 #
>> 2046 config WEAK_REORDERING_BEYOND_LLSC
>> 2047 bool
>> 2048 endmenu
>> 2049
>> 2050 #
>> 2051 # These two indicate any level of the MIPS32 and MIPS64 architecture
>> 2052 #
>> 2053 config CPU_MIPS32
>> 2054 bool
>> 2055 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
>> 2056
>> 2057 config CPU_MIPS64
>> 2058 bool
>> 2059 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
>> 2060
>> 2061 #
>> 2062 # These indicate the revision of the architecture
>> 2063 #
>> 2064 config CPU_MIPSR1
>> 2065 bool
>> 2066 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
>> 2067
>> 2068 config CPU_MIPSR2
>> 2069 bool
>> 2070 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
>> 2071 select CPU_HAS_RIXI
>> 2072 select MIPS_SPRAM
>> 2073
>> 2074 config CPU_MIPSR6
>> 2075 bool
>> 2076 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
>> 2077 select CPU_HAS_RIXI
>> 2078 select HAVE_ARCH_BITREVERSE
>> 2079 select MIPS_ASID_BITS_VARIABLE
>> 2080 select MIPS_CRC_SUPPORT
>> 2081 select MIPS_SPRAM
>> 2082
>> 2083 config TARGET_ISA_REV
476 int 2084 int
477 default 2 if !PPC64 !! 2085 default 1 if CPU_MIPSR1
478 default 4 !! 2086 default 2 if CPU_MIPSR2
>> 2087 default 6 if CPU_MIPSR6
>> 2088 default 0
>> 2089 help
>> 2090 Reflects the ISA revision being targeted by the kernel build. This
>> 2091 is effectively the Kconfig equivalent of MIPS_ISA_REV.
479 2092
480 source "arch/powerpc/sysdev/Kconfig" !! 2093 config EVA
481 source "arch/powerpc/platforms/Kconfig" !! 2094 bool
482 2095
483 menu "Kernel options" !! 2096 config XPA
>> 2097 bool
484 2098
485 config HIGHMEM !! 2099 config SYS_SUPPORTS_32BIT_KERNEL
486 bool "High memory support" !! 2100 bool
487 depends on PPC32 !! 2101 config SYS_SUPPORTS_64BIT_KERNEL
488 select KMAP_LOCAL !! 2102 bool
489 !! 2103 config CPU_SUPPORTS_32BIT_KERNEL
490 source "kernel/Kconfig.hz" !! 2104 bool
491 !! 2105 config CPU_SUPPORTS_64BIT_KERNEL
492 config MATH_EMULATION !! 2106 bool
493 bool "Math emulation" !! 2107 config CPU_SUPPORTS_CPUFREQ
494 depends on 44x || PPC_8xx || PPC_MPC83 !! 2108 bool
495 select PPC_FPU_REGS !! 2109 config CPU_SUPPORTS_ADDRWINCFG
496 help !! 2110 bool
497 Some PowerPC chips designed for embe !! 2111 config CPU_SUPPORTS_HUGEPAGES
498 a floating-point unit and therefore !! 2112 bool
499 floating-point instructions in the P !! 2113 config CPU_SUPPORTS_UNCACHED_ACCELERATED
500 say Y here, the kernel will include !! 2114 bool
501 unit, which will allow programs that !! 2115 config MIPS_PGD_C0_CONTEXT
502 instructions to run. !! 2116 bool
503 !! 2117 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
504 This is also useful to emulate missi !! 2118
505 such as fsqrt on cores that do have !! 2119 #
506 them (such as Freescale BookE). !! 2120 # Set to y for ptrace access to watch registers.
>> 2121 #
>> 2122 config HARDWARE_WATCHPOINTS
>> 2123 bool
>> 2124 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
>> 2125
>> 2126 menu "Kernel type"
507 2127
508 choice 2128 choice
509 prompt "Math emulation options" !! 2129 prompt "Kernel code model"
510 default MATH_EMULATION_FULL !! 2130 help
511 depends on MATH_EMULATION !! 2131 You should only select this option if you have a workload that
512 !! 2132 actually benefits from 64-bit processing or if your machine has
513 config MATH_EMULATION_FULL !! 2133 large memory. You will only be presented a single option in this
514 bool "Emulate all the floating point i !! 2134 menu if your system does not support both 32-bit and 64-bit kernels.
515 help <<
516 Select this option will enable the k <<
517 all the floating point instructions. <<
518 a FPU, you should select this. <<
519 2135
520 config MATH_EMULATION_HW_UNIMPLEMENTED !! 2136 config 32BIT
521 bool "Just emulate the FPU unimplement !! 2137 bool "32-bit kernel"
>> 2138 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
>> 2139 select TRAD_SIGNALS
522 help 2140 help
523 Select this if you know there does h !! 2141 Select this option if you want to build a 32-bit kernel.
524 SoC, but some floating point instruc !! 2142
>> 2143 config 64BIT
>> 2144 bool "64-bit kernel"
>> 2145 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
>> 2146 help
>> 2147 Select this option if you want to build a 64-bit kernel.
525 2148
526 endchoice 2149 endchoice
527 2150
528 config PPC_TRANSACTIONAL_MEM !! 2151 config KVM_GUEST
529 bool "Transactional Memory support for !! 2152 bool "KVM Guest Kernel"
530 depends on PPC_BOOK3S_64 !! 2153 depends on BROKEN_ON_SMP
531 depends on SMP !! 2154 help
532 select ALTIVEC !! 2155 Select this option if building a guest kernel for KVM (Trap & Emulate)
533 select VSX !! 2156 mode.
>> 2157
>> 2158 config KVM_GUEST_TIMER_FREQ
>> 2159 int "Count/Compare Timer Frequency (MHz)"
>> 2160 depends on KVM_GUEST
>> 2161 default 100
>> 2162 help
>> 2163 Set this to non-zero if building a guest kernel for KVM to skip RTC
>> 2164 emulation when determining guest CPU Frequency. Instead, the guest's
>> 2165 timer frequency is specified directly.
>> 2166
>> 2167 config MIPS_VA_BITS_48
>> 2168 bool "48 bits virtual memory"
>> 2169 depends on 64BIT
>> 2170 help
>> 2171 Support a maximum at least 48 bits of application virtual
>> 2172 memory. Default is 40 bits or less, depending on the CPU.
>> 2173 For page sizes 16k and above, this option results in a small
>> 2174 memory overhead for page tables. For 4k page size, a fourth
>> 2175 level of page tables is added which imposes both a memory
>> 2176 overhead as well as slower TLB fault handling.
>> 2177
>> 2178 If unsure, say N.
>> 2179
>> 2180 choice
>> 2181 prompt "Kernel page size"
>> 2182 default PAGE_SIZE_4KB
>> 2183
>> 2184 config PAGE_SIZE_4KB
>> 2185 bool "4kB"
>> 2186 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
>> 2187 help
>> 2188 This option select the standard 4kB Linux page size. On some
>> 2189 R3000-family processors this is the only available page size. Using
>> 2190 4kB page size will minimize memory consumption and is therefore
>> 2191 recommended for low memory systems.
>> 2192
>> 2193 config PAGE_SIZE_8KB
>> 2194 bool "8kB"
>> 2195 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
>> 2196 depends on !MIPS_VA_BITS_48
>> 2197 help
>> 2198 Using 8kB page size will result in higher performance kernel at
>> 2199 the price of higher memory consumption. This option is available
>> 2200 only on R8000 and cnMIPS processors. Note that you will need a
>> 2201 suitable Linux distribution to support this.
>> 2202
>> 2203 config PAGE_SIZE_16KB
>> 2204 bool "16kB"
>> 2205 depends on !CPU_R3000 && !CPU_TX39XX
>> 2206 help
>> 2207 Using 16kB page size will result in higher performance kernel at
>> 2208 the price of higher memory consumption. This option is available on
>> 2209 all non-R3000 family processors. Note that you will need a suitable
>> 2210 Linux distribution to support this.
>> 2211
>> 2212 config PAGE_SIZE_32KB
>> 2213 bool "32kB"
>> 2214 depends on CPU_CAVIUM_OCTEON
>> 2215 depends on !MIPS_VA_BITS_48
>> 2216 help
>> 2217 Using 32kB page size will result in higher performance kernel at
>> 2218 the price of higher memory consumption. This option is available
>> 2219 only on cnMIPS cores. Note that you will need a suitable Linux
>> 2220 distribution to support this.
>> 2221
>> 2222 config PAGE_SIZE_64KB
>> 2223 bool "64kB"
>> 2224 depends on !CPU_R3000 && !CPU_TX39XX
>> 2225 help
>> 2226 Using 64kB page size will result in higher performance kernel at
>> 2227 the price of higher memory consumption. This option is available on
>> 2228 all non-R3000 family processor. Not that at the time of this
>> 2229 writing this option is still high experimental.
>> 2230
>> 2231 endchoice
>> 2232
>> 2233 config FORCE_MAX_ZONEORDER
>> 2234 int "Maximum zone order"
>> 2235 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2236 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2237 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2238 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2239 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2240 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2241 range 11 64
>> 2242 default "11"
>> 2243 help
>> 2244 The kernel memory allocator divides physically contiguous memory
>> 2245 blocks into "zones", where each zone is a power of two number of
>> 2246 pages. This option selects the largest power of two that the kernel
>> 2247 keeps in the memory allocator. If you need to allocate very large
>> 2248 blocks of physically contiguous memory, then you may need to
>> 2249 increase this value.
>> 2250
>> 2251 This config option is actually maximum order plus one. For example,
>> 2252 a value of 11 means that the largest free memory block is 2^10 pages.
>> 2253
>> 2254 The page size is not necessarily 4KB. Keep this in mind
>> 2255 when choosing a value for this option.
>> 2256
>> 2257 config BOARD_SCACHE
>> 2258 bool
>> 2259
>> 2260 config IP22_CPU_SCACHE
>> 2261 bool
>> 2262 select BOARD_SCACHE
>> 2263
>> 2264 #
>> 2265 # Support for a MIPS32 / MIPS64 style S-caches
>> 2266 #
>> 2267 config MIPS_CPU_SCACHE
>> 2268 bool
>> 2269 select BOARD_SCACHE
>> 2270
>> 2271 config R5000_CPU_SCACHE
>> 2272 bool
>> 2273 select BOARD_SCACHE
>> 2274
>> 2275 config RM7000_CPU_SCACHE
>> 2276 bool
>> 2277 select BOARD_SCACHE
>> 2278
>> 2279 config SIBYTE_DMA_PAGEOPS
>> 2280 bool "Use DMA to clear/copy pages"
>> 2281 depends on CPU_SB1
>> 2282 help
>> 2283 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 2284 channel. These DMA channels are otherwise unused by the standard
>> 2285 SiByte Linux port. Seems to give a small performance benefit.
>> 2286
>> 2287 config CPU_HAS_PREFETCH
>> 2288 bool
>> 2289
>> 2290 config CPU_GENERIC_DUMP_TLB
>> 2291 bool
>> 2292 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
>> 2293
>> 2294 config MIPS_FP_SUPPORT
>> 2295 bool "Floating Point support" if EXPERT
>> 2296 default y
>> 2297 help
>> 2298 Select y to include support for floating point in the kernel
>> 2299 including initialization of FPU hardware, FP context save & restore
>> 2300 and emulation of an FPU where necessary. Without this support any
>> 2301 userland program attempting to use floating point instructions will
>> 2302 receive a SIGILL.
>> 2303
>> 2304 If you know that your userland will not attempt to use floating point
>> 2305 instructions then you can say n here to shrink the kernel a little.
>> 2306
>> 2307 If unsure, say y.
>> 2308
>> 2309 config CPU_R2300_FPU
>> 2310 bool
>> 2311 depends on MIPS_FP_SUPPORT
>> 2312 default y if CPU_R3000 || CPU_TX39XX
>> 2313
>> 2314 config CPU_R4K_FPU
>> 2315 bool
>> 2316 depends on MIPS_FP_SUPPORT
>> 2317 default y if !CPU_R2300_FPU
>> 2318
>> 2319 config CPU_R4K_CACHE_TLB
>> 2320 bool
>> 2321 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
>> 2322
>> 2323 config MIPS_MT_SMP
>> 2324 bool "MIPS MT SMP support (1 TC on each available VPE)"
>> 2325 default y
>> 2326 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
>> 2327 select CPU_MIPSR2_IRQ_VI
>> 2328 select CPU_MIPSR2_IRQ_EI
>> 2329 select SYNC_R4K
>> 2330 select MIPS_MT
>> 2331 select SMP
>> 2332 select SMP_UP
>> 2333 select SYS_SUPPORTS_SMP
>> 2334 select SYS_SUPPORTS_SCHED_SMT
>> 2335 select MIPS_PERF_SHARED_TC_COUNTERS
534 help 2336 help
535 Support user-mode Transactional Memo !! 2337 This is a kernel model which is known as SMVP. This is supported
>> 2338 on cores with the MT ASE and uses the available VPEs to implement
>> 2339 virtual processors which supports SMP. This is equivalent to the
>> 2340 Intel Hyperthreading feature. For further information go to
>> 2341 <http://www.imgtec.com/mips/mips-multithreading.asp>.
>> 2342
>> 2343 config MIPS_MT
>> 2344 bool
536 2345
537 config PPC_UV !! 2346 config SCHED_SMT
538 bool "Ultravisor support" !! 2347 bool "SMT (multithreading) scheduler support"
539 depends on KVM_BOOK3S_HV_POSSIBLE !! 2348 depends on SYS_SUPPORTS_SCHED_SMT
540 depends on DEVICE_PRIVATE <<
541 default n 2349 default n
542 help 2350 help
543 This option paravirtualizes the kern !! 2351 SMT scheduler support improves the CPU scheduler's decision making
544 supports the Protected Execution Fac !! 2352 when dealing with MIPS MT enabled cores at a cost of slightly
545 the ultravisor firmware runs at a pr !! 2353 increased overhead in some places. If unsure say N here.
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 2354
572 config HOTPLUG_CPU !! 2355 config SYS_SUPPORTS_SCHED_SMT
573 bool "Support for enabling/disabling C !! 2356 bool
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 2357
591 config PPC_QUEUED_SPINLOCKS !! 2358 config SYS_SUPPORTS_MULTITHREADING
592 bool "Queued spinlocks" if EXPERT !! 2359 bool
593 depends on SMP !! 2360
594 default PPC_BOOK3S_64 !! 2361 config MIPS_MT_FPAFF
>> 2362 bool "Dynamic FPU affinity for FP-intensive threads"
>> 2363 default y
>> 2364 depends on MIPS_MT_SMP
>> 2365
>> 2366 config MIPSR2_TO_R6_EMULATOR
>> 2367 bool "MIPS R2-to-R6 emulator"
>> 2368 depends on CPU_MIPSR6
>> 2369 depends on MIPS_FP_SUPPORT
>> 2370 default y
595 help 2371 help
596 Say Y here to use queued spinlocks w !! 2372 Choose this option if you want to run non-R6 MIPS userland code.
597 fairness on large SMP and NUMA syste !! 2373 Even if you say 'Y' here, the emulator will still be disabled by
598 performance. !! 2374 default. You can enable it using the 'mipsr2emu' kernel option.
>> 2375 The only reason this is a build-time option is to save ~14K from the
>> 2376 final kernel image.
599 2377
600 config ARCH_CPU_PROBE_RELEASE !! 2378 config SYS_SUPPORTS_VPE_LOADER
601 def_bool y !! 2379 bool
602 depends on HOTPLUG_CPU !! 2380 depends on SYS_SUPPORTS_MULTITHREADING
>> 2381 help
>> 2382 Indicates that the platform supports the VPE loader, and provides
>> 2383 physical_memsize.
603 2384
604 config PPC64_SUPPORTS_MEMORY_FAILURE !! 2385 config MIPS_VPE_LOADER
605 bool "Add support for memory hwpoison" !! 2386 bool "VPE loader support."
606 depends on PPC_BOOK3S_64 !! 2387 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
607 default "y" if PPC_POWERNV !! 2388 select CPU_MIPSR2_IRQ_VI
608 select ARCH_SUPPORTS_MEMORY_FAILURE !! 2389 select CPU_MIPSR2_IRQ_EI
>> 2390 select MIPS_MT
>> 2391 help
>> 2392 Includes a loader for loading an elf relocatable object
>> 2393 onto another VPE and running it.
609 2394
610 config ARCH_SUPPORTS_KEXEC !! 2395 config MIPS_VPE_LOADER_CMP
611 def_bool PPC_BOOK3S || PPC_E500 || (44 !! 2396 bool
>> 2397 default "y"
>> 2398 depends on MIPS_VPE_LOADER && MIPS_CMP
612 2399
613 config ARCH_SUPPORTS_KEXEC_FILE !! 2400 config MIPS_VPE_LOADER_MT
614 def_bool PPC64 !! 2401 bool
>> 2402 default "y"
>> 2403 depends on MIPS_VPE_LOADER && !MIPS_CMP
615 2404
616 config ARCH_SUPPORTS_KEXEC_PURGATORY !! 2405 config MIPS_VPE_LOADER_TOM
617 def_bool y !! 2406 bool "Load VPE program into memory hidden from linux"
>> 2407 depends on MIPS_VPE_LOADER
>> 2408 default y
>> 2409 help
>> 2410 The loader can use memory that is present but has been hidden from
>> 2411 Linux using the kernel command line option "mem=xxMB". It's up to
>> 2412 you to ensure the amount you put in the option and the space your
>> 2413 program requires is less or equal to the amount physically present.
618 2414
619 config ARCH_SELECTS_KEXEC_FILE !! 2415 config MIPS_VPE_APSP_API
620 def_bool y !! 2416 bool "Enable support for AP/SP API (RTLX)"
621 depends on KEXEC_FILE !! 2417 depends on MIPS_VPE_LOADER
622 select KEXEC_ELF !! 2418
623 select HAVE_IMA_KEXEC if IMA !! 2419 config MIPS_VPE_APSP_API_CMP
624 !! 2420 bool
625 config PPC64_BIG_ENDIAN_ELF_ABI_V2 !! 2421 default "y"
626 # Option is available to BFD, but LLD !! 2422 depends on MIPS_VPE_APSP_API && MIPS_CMP
627 # always true there. !! 2423
628 prompt "Build big-endian kernel using !! 2424 config MIPS_VPE_APSP_API_MT
629 def_bool y !! 2425 bool
630 depends on PPC64 && CPU_BIG_ENDIAN !! 2426 default "y"
631 depends on CC_HAS_ELFV2 !! 2427 depends on MIPS_VPE_APSP_API && !MIPS_CMP
>> 2428
>> 2429 config MIPS_CMP
>> 2430 bool "MIPS CMP framework support (DEPRECATED)"
>> 2431 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
>> 2432 select SMP
>> 2433 select SYNC_R4K
>> 2434 select SYS_SUPPORTS_SMP
>> 2435 select WEAK_ORDERING
>> 2436 default n
632 help 2437 help
633 This builds the kernel image using t !! 2438 Select this if you are using a bootloader which implements the "CMP
634 V2 ABI Specification", which has a r !! 2439 framework" protocol (ie. YAMON) and want your kernel to make use of
635 function calls. This internal kernel !! 2440 its ability to start secondary CPUs.
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 2441
642 config RELOCATABLE !! 2442 Unless you have a specific need, you should use CONFIG_MIPS_CPS
643 bool "Build a relocatable kernel" !! 2443 instead of this.
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 2444
665 config RANDOMIZE_BASE !! 2445 config MIPS_CPS
666 bool "Randomize the address of the ker !! 2446 bool "MIPS Coherent Processing System support"
667 depends on PPC_85xx && FLATMEM !! 2447 depends on SYS_SUPPORTS_MIPS_CPS
668 depends on RELOCATABLE !! 2448 select MIPS_CM
>> 2449 select MIPS_CPS_PM if HOTPLUG_CPU
>> 2450 select SMP
>> 2451 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
>> 2452 select SYS_SUPPORTS_HOTPLUG_CPU
>> 2453 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
>> 2454 select SYS_SUPPORTS_SMP
>> 2455 select WEAK_ORDERING
669 help 2456 help
670 Randomizes the virtual address at wh !! 2457 Select this if you wish to run an SMP kernel across multiple cores
671 loaded, as a security feature that d !! 2458 within a MIPS Coherent Processing System. When this option is
672 relying on knowledge of the location !! 2459 enabled the kernel will probe for other cores and boot them with
>> 2460 no external assistance. It is safe to enable this when hardware
>> 2461 support is unavailable.
673 2462
674 If unsure, say Y. !! 2463 config MIPS_CPS_PM
>> 2464 depends on MIPS_CPS
>> 2465 bool
675 2466
676 config RELOCATABLE_TEST !! 2467 config MIPS_CM
677 bool "Test relocatable kernel" !! 2468 bool
678 depends on (PPC64 && RELOCATABLE) !! 2469 select MIPS_CPC
679 help <<
680 This runs the relocatable kernel at <<
681 loaded at, which tends to be non-zer <<
682 relocation code. <<
683 2470
684 config ARCH_SUPPORTS_CRASH_DUMP !! 2471 config MIPS_CPC
685 def_bool PPC64 || PPC_BOOK3S_32 || PPC !! 2472 bool
686 2473
687 config ARCH_SELECTS_CRASH_DUMP !! 2474 config SB1_PASS_2_WORKAROUNDS
688 def_bool y !! 2475 bool
689 depends on CRASH_DUMP !! 2476 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
690 select RELOCATABLE if PPC64 || 44x || !! 2477 default y
691 2478
692 config ARCH_SUPPORTS_CRASH_HOTPLUG !! 2479 config SB1_PASS_2_1_WORKAROUNDS
693 def_bool y !! 2480 bool
694 depends on PPC64 !! 2481 depends on CPU_SB1 && CPU_SB1_PASS_2
>> 2482 default y
695 2483
696 config FA_DUMP !! 2484 choice
697 bool "Firmware-assisted dump" !! 2485 prompt "SmartMIPS or microMIPS ASE support"
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 2486
728 config IRQ_ALL_CPUS !! 2487 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
729 bool "Distribute interrupts on all CPU !! 2488 bool "None"
730 depends on SMP <<
731 help 2489 help
732 This option gives the kernel permiss !! 2490 Select this if you want neither microMIPS nor SmartMIPS support
733 multiple CPUs. Saying N here will r <<
734 CPU. Generally saying Y is safe, al <<
735 reported with SMP Power Macintoshes <<
736 2491
737 config NUMA !! 2492 config CPU_HAS_SMARTMIPS
738 bool "NUMA Memory Allocation and Sched !! 2493 depends on SYS_SUPPORTS_SMARTMIPS
739 depends on PPC64 && SMP !! 2494 bool "SmartMIPS"
740 default y if PPC_PSERIES || PPC_POWERN !! 2495 help
741 select USE_PERCPU_NUMA_NODE_ID !! 2496 SmartMIPS is a extension of the MIPS32 architecture aimed at
742 help !! 2497 increased security at both hardware and software level for
743 Enable NUMA (Non-Uniform Memory Acce !! 2498 smartcards. Enabling this option will allow proper use of the
744 !! 2499 SmartMIPS instructions by Linux applications. However a kernel with
745 The kernel will try to allocate memo !! 2500 this option will not work on a MIPS core without SmartMIPS core. If
746 local memory controller of the CPU a !! 2501 you don't know you probably don't have SmartMIPS and should say N
747 NUMA awareness to the kernel. !! 2502 here.
>> 2503
>> 2504 config CPU_MICROMIPS
>> 2505 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
>> 2506 bool "microMIPS"
>> 2507 help
>> 2508 When this option is enabled the kernel will be built using the
>> 2509 microMIPS ISA
748 2510
749 config NODES_SHIFT !! 2511 endchoice
>> 2512
>> 2513 config CPU_HAS_MSA
>> 2514 bool "Support for the MIPS SIMD Architecture"
>> 2515 depends on CPU_SUPPORTS_MSA
>> 2516 depends on MIPS_FP_SUPPORT
>> 2517 depends on 64BIT || MIPS_O32_FP64_SUPPORT
>> 2518 help
>> 2519 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
>> 2520 and a set of SIMD instructions to operate on them. When this option
>> 2521 is enabled the kernel will support allocating & switching MSA
>> 2522 vector register contexts. If you know that your kernel will only be
>> 2523 running on CPUs which do not support MSA or that your userland will
>> 2524 not be making use of it then you may wish to say N here to reduce
>> 2525 the size & complexity of your kernel.
>> 2526
>> 2527 If unsure, say Y.
>> 2528
>> 2529 config CPU_HAS_WB
>> 2530 bool
>> 2531
>> 2532 config XKS01
>> 2533 bool
>> 2534
>> 2535 config CPU_HAS_RIXI
>> 2536 bool
>> 2537
>> 2538 config CPU_HAS_LOAD_STORE_LR
>> 2539 bool
>> 2540 help
>> 2541 CPU has support for unaligned load and store instructions:
>> 2542 LWL, LWR, SWL, SWR (Load/store word left/right).
>> 2543 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
>> 2544
>> 2545 #
>> 2546 # Vectored interrupt mode is an R2 feature
>> 2547 #
>> 2548 config CPU_MIPSR2_IRQ_VI
>> 2549 bool
>> 2550
>> 2551 #
>> 2552 # Extended interrupt mode is an R2 feature
>> 2553 #
>> 2554 config CPU_MIPSR2_IRQ_EI
>> 2555 bool
>> 2556
>> 2557 config CPU_HAS_SYNC
>> 2558 bool
>> 2559 depends on !CPU_R3000
>> 2560 default y
>> 2561
>> 2562 #
>> 2563 # CPU non-features
>> 2564 #
>> 2565 config CPU_DADDI_WORKAROUNDS
>> 2566 bool
>> 2567
>> 2568 config CPU_R4000_WORKAROUNDS
>> 2569 bool
>> 2570 select CPU_R4400_WORKAROUNDS
>> 2571
>> 2572 config CPU_R4400_WORKAROUNDS
>> 2573 bool
>> 2574
>> 2575 config MIPS_ASID_SHIFT
750 int 2576 int
751 default "8" if PPC64 !! 2577 default 6 if CPU_R3000 || CPU_TX39XX
752 default "4" !! 2578 default 4 if CPU_R8000
753 depends on NUMA !! 2579 default 0
754 2580
755 config HAVE_MEMORYLESS_NODES !! 2581 config MIPS_ASID_BITS
756 def_bool y !! 2582 int
757 depends on NUMA !! 2583 default 0 if MIPS_ASID_BITS_VARIABLE
>> 2584 default 6 if CPU_R3000 || CPU_TX39XX
>> 2585 default 8
>> 2586
>> 2587 config MIPS_ASID_BITS_VARIABLE
>> 2588 bool
>> 2589
>> 2590 config MIPS_CRC_SUPPORT
>> 2591 bool
>> 2592
>> 2593 #
>> 2594 # - Highmem only makes sense for the 32-bit kernel.
>> 2595 # - The current highmem code will only work properly on physically indexed
>> 2596 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 2597 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 2598 # moment we protect the user and offer the highmem option only on machines
>> 2599 # where it's known to be safe. This will not offer highmem on a few systems
>> 2600 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 2601 # indexed CPUs but we're playing safe.
>> 2602 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
>> 2603 # know they might have memory configurations that could make use of highmem
>> 2604 # support.
>> 2605 #
>> 2606 config HIGHMEM
>> 2607 bool "High Memory Support"
>> 2608 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
758 2609
759 config ARCH_SELECT_MEMORY_MODEL !! 2610 config CPU_SUPPORTS_HIGHMEM
760 def_bool y !! 2611 bool
761 depends on PPC64 !! 2612
>> 2613 config SYS_SUPPORTS_HIGHMEM
>> 2614 bool
>> 2615
>> 2616 config SYS_SUPPORTS_SMARTMIPS
>> 2617 bool
>> 2618
>> 2619 config SYS_SUPPORTS_MICROMIPS
>> 2620 bool
>> 2621
>> 2622 config SYS_SUPPORTS_MIPS16
>> 2623 bool
>> 2624 help
>> 2625 This option must be set if a kernel might be executed on a MIPS16-
>> 2626 enabled CPU even if MIPS16 is not actually being used. In other
>> 2627 words, it makes the kernel MIPS16-tolerant.
>> 2628
>> 2629 config CPU_SUPPORTS_MSA
>> 2630 bool
762 2631
763 config ARCH_FLATMEM_ENABLE 2632 config ARCH_FLATMEM_ENABLE
764 def_bool y 2633 def_bool y
765 depends on (PPC64 && !NUMA) || PPC32 !! 2634 depends on !NUMA && !CPU_LOONGSON2
>> 2635
>> 2636 config ARCH_DISCONTIGMEM_ENABLE
>> 2637 bool
>> 2638 default y if SGI_IP27
>> 2639 help
>> 2640 Say Y to support efficient handling of discontiguous physical memory,
>> 2641 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 2642 or have huge holes in the physical address space for other reasons.
>> 2643 See <file:Documentation/vm/numa.rst> for more.
766 2644
767 config ARCH_SPARSEMEM_ENABLE 2645 config ARCH_SPARSEMEM_ENABLE
768 def_bool y !! 2646 bool
769 depends on PPC64 !! 2647 select SPARSEMEM_STATIC
770 select SPARSEMEM_VMEMMAP_ENABLE <<
771 2648
772 config ARCH_SPARSEMEM_DEFAULT !! 2649 config NUMA
773 def_bool y !! 2650 bool "NUMA Support"
774 depends on PPC_BOOK3S_64 !! 2651 depends on SYS_SUPPORTS_NUMA
>> 2652 help
>> 2653 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 2654 Access). This option improves performance on systems with more
>> 2655 than two nodes; on two node systems it is generally better to
>> 2656 leave it disabled; on single node systems disable this option
>> 2657 disabled.
775 2658
776 config ILLEGAL_POINTER_VALUE !! 2659 config SYS_SUPPORTS_NUMA
777 hex !! 2660 bool
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 2661
783 config ARCH_MEMORY_PROBE !! 2662 config RELOCATABLE
784 def_bool y !! 2663 bool "Relocatable kernel"
785 depends on MEMORY_HOTPLUG !! 2664 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
>> 2665 help
>> 2666 This builds a kernel image that retains relocation information
>> 2667 so it can be loaded someplace besides the default 1MB.
>> 2668 The relocations make the kernel binary about 15% larger,
>> 2669 but are discarded at runtime
786 2670
787 choice !! 2671 config RELOCATION_TABLE_SIZE
788 prompt "Page size" !! 2672 hex "Relocation table size"
789 default PPC_64K_PAGES if PPC_BOOK3S_64 !! 2673 depends on RELOCATABLE
790 default PPC_4K_PAGES !! 2674 range 0x0 0x01000000
791 help !! 2675 default "0x00100000"
792 Select the kernel logical page size. !! 2676 ---help---
793 will reduce software overhead at eac !! 2677 A table of relocation data will be appended to the kernel binary
794 hardware prefetch mechanisms to be m !! 2678 and parsed at boot to fix up the relocated kernel.
795 larger dma transfers increasing IO e <<
796 overhead. However the utilization of <<
797 For example, each cached file will u <<
798 page size to hold its contents and t <<
799 end of file and the end of page is w <<
800 <<
801 Some dedicated systems, such as soft <<
802 accelerated calculations, have shown <<
803 <<
804 If you configure a 64 bit kernel for <<
805 processor does not support them, the <<
806 them with 4k pages, loading them on <<
807 reduced software overhead and larger <<
808 For the 32 bit kernel, a large page <<
809 unless it is supported by the config <<
810 <<
811 If unsure, choose 4K_PAGES. <<
812 <<
813 config PPC_4K_PAGES <<
814 bool "4k page size" <<
815 select HAVE_ARCH_SOFT_DIRTY if PPC_BOO <<
816 select HAVE_PAGE_SIZE_4KB <<
817 <<
818 config PPC_16K_PAGES <<
819 bool "16k page size" <<
820 depends on 44x || PPC_8xx <<
821 select HAVE_PAGE_SIZE_16KB <<
822 <<
823 config PPC_64K_PAGES <<
824 bool "64k page size" <<
825 depends on 44x || PPC_BOOK3S_64 <<
826 select HAVE_ARCH_SOFT_DIRTY if PPC_BOO <<
827 select HAVE_PAGE_SIZE_64KB <<
828 <<
829 config PPC_256K_PAGES <<
830 bool "256k page size (Requires non-sta <<
831 depends on 44x && !PPC_47x <<
832 select HAVE_PAGE_SIZE_256KB <<
833 help <<
834 Make the page size 256k. <<
835 <<
836 The kernel will only be able to run <<
837 compiled with '-zmax-page-size' set <<
838 binutils later than 2.17.50.0.3, or <<
839 definition from 0x10000 to 0x40000 i <<
840 2679
841 endchoice !! 2680 This option allows the amount of space reserved for the table to be
>> 2681 adjusted, although the default of 1Mb should be ok in most cases.
842 2682
843 config THREAD_SHIFT !! 2683 The build will fail and a valid size suggested if this is too small.
844 int "Thread shift" if EXPERT <<
845 range 13 15 <<
846 default "15" if PPC_256K_PAGES <<
847 default "15" if PPC_PSERIES || PPC_POW <<
848 default "14" if PPC64 <<
849 default "13" <<
850 help <<
851 Used to define the stack size. The d <<
852 want. Only change this if you know w <<
853 <<
854 config DATA_SHIFT_BOOL <<
855 bool "Set custom data alignment" <<
856 depends on ADVANCED_OPTIONS <<
857 depends on STRICT_KERNEL_RWX || DEBUG_ <<
858 depends on (PPC_8xx && !PIN_TLB_DATA & <<
859 PPC_BOOK3S_32 || PPC_85xx <<
860 help <<
861 This option allows you to set the ke <<
862 RAM is mapped by blocks, the alignme <<
863 number of possible blocks. The defau <<
864 <<
865 Say N here unless you know what you <<
866 <<
867 config DATA_SHIFT <<
868 int "Data shift" if DATA_SHIFT_BOOL <<
869 default 24 if STRICT_KERNEL_RWX && PPC <<
870 range 17 28 if (STRICT_KERNEL_RWX || D <<
871 range 19 23 if (STRICT_KERNEL_RWX || D <<
872 range 20 24 if (STRICT_KERNEL_RWX || D <<
873 default 22 if STRICT_KERNEL_RWX && PPC <<
874 default 18 if (DEBUG_PAGEALLOC || KFEN <<
875 default 23 if (STRICT_KERNEL_RWX || DE <<
876 (PIN_TLB_DATA || PIN_TLB <<
877 default 19 if (STRICT_KERNEL_RWX || DE <<
878 default 24 if STRICT_KERNEL_RWX && PPC <<
879 default PAGE_SHIFT <<
880 help <<
881 On Book3S 32 (603+), DBATs are used <<
882 Smaller is the alignment, greater is <<
883 <<
884 On 8xx, large pages (512kb or 8M) ar <<
885 memory. Aligning to 8M reduces TLB m <<
886 in that case. If PIN_TLB is selected <<
887 8M pages will be pinned. <<
888 <<
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 2684
915 Don't change if unsure. !! 2685 If unsure, leave at the default value.
916 2686
917 config PPC_SUBPAGE_PROT !! 2687 config RANDOMIZE_BASE
918 bool "Support setting protections for !! 2688 bool "Randomize the address of the kernel image"
919 default n !! 2689 depends on RELOCATABLE
920 depends on PPC_64S_HASH_MMU && PPC_64K !! 2690 ---help---
>> 2691 Randomizes the physical and virtual address at which the
>> 2692 kernel image is loaded, as a security feature that
>> 2693 deters exploit attempts relying on knowledge of the location
>> 2694 of kernel internals.
>> 2695
>> 2696 Entropy is generated using any coprocessor 0 registers available.
>> 2697
>> 2698 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
>> 2699
>> 2700 If unsure, say N.
>> 2701
>> 2702 config RANDOMIZE_BASE_MAX_OFFSET
>> 2703 hex "Maximum kASLR offset" if EXPERT
>> 2704 depends on RANDOMIZE_BASE
>> 2705 range 0x0 0x40000000 if EVA || 64BIT
>> 2706 range 0x0 0x08000000
>> 2707 default "0x01000000"
>> 2708 ---help---
>> 2709 When kASLR is active, this provides the maximum offset that will
>> 2710 be applied to the kernel image. It should be set according to the
>> 2711 amount of physical RAM available in the target system minus
>> 2712 PHYSICAL_START and must be a power of 2.
>> 2713
>> 2714 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
>> 2715 EVA or 64-bit. The default is 16Mb.
>> 2716
>> 2717 config NODES_SHIFT
>> 2718 int
>> 2719 default "6"
>> 2720 depends on NEED_MULTIPLE_NODES
>> 2721
>> 2722 config HW_PERF_EVENTS
>> 2723 bool "Enable hardware performance counter support for perf events"
>> 2724 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
>> 2725 default y
>> 2726 help
>> 2727 Enable hardware performance counter support for perf events. If
>> 2728 disabled, perf events will use software events only.
>> 2729
>> 2730 config SMP
>> 2731 bool "Multi-Processing support"
>> 2732 depends on SYS_SUPPORTS_SMP
921 help 2733 help
922 This option adds support for system !! 2734 This enables support for systems with more than one CPU. If you have
923 to set access permissions (read/writ !! 2735 a system with only one CPU, say N. If you have a system with more
924 on the 4k subpages of each 64k page. !! 2736 than one CPU, say Y.
925 2737
926 If unsure, say N here. !! 2738 If you say N here, the kernel will run on uni- and multiprocessor
>> 2739 machines, but will use only one CPU of a multiprocessor machine. If
>> 2740 you say Y here, the kernel will run on many, but not all,
>> 2741 uniprocessor machines. On a uniprocessor machine, the kernel
>> 2742 will run faster if you say N here.
927 2743
928 config PPC_PROT_SAO_LPAR !! 2744 People using multiprocessor machines who say Y here should also say
929 bool "Support PROT_SAO mappings in LPA !! 2745 Y to "Enhanced Real Time Clock Support", below.
930 depends on PPC_BOOK3S_64 !! 2746
>> 2747 See also the SMP-HOWTO available at
>> 2748 <http://www.tldp.org/docs.html#howto>.
>> 2749
>> 2750 If you don't know what to do here, say N.
>> 2751
>> 2752 config HOTPLUG_CPU
>> 2753 bool "Support for hot-pluggable CPUs"
>> 2754 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
931 help 2755 help
932 This option adds support for PROT_SA !! 2756 Say Y here to allow turning CPUs off and on. CPUs can be
933 inside LPARs on supported CPUs. !! 2757 controlled through /sys/devices/system/cpu.
>> 2758 (Note: power management support will enable this option
>> 2759 automatically on SMP systems. )
>> 2760 Say N if you want to disable CPU hotplug.
934 2761
935 This may cause issues when performin !! 2762 config SMP_UP
936 a CPU that supports SAO to one that !! 2763 bool
937 2764
938 If unsure, say N here. !! 2765 config SYS_SUPPORTS_MIPS_CMP
>> 2766 bool
939 2767
940 config PPC_COPRO_BASE !! 2768 config SYS_SUPPORTS_MIPS_CPS
941 bool 2769 bool
942 2770
943 config SCHED_SMT !! 2771 config SYS_SUPPORTS_SMP
944 bool "SMT (Hyperthreading) scheduler s !! 2772 bool
945 depends on PPC64 && SMP !! 2773
>> 2774 config NR_CPUS_DEFAULT_4
>> 2775 bool
>> 2776
>> 2777 config NR_CPUS_DEFAULT_8
>> 2778 bool
>> 2779
>> 2780 config NR_CPUS_DEFAULT_16
>> 2781 bool
>> 2782
>> 2783 config NR_CPUS_DEFAULT_32
>> 2784 bool
>> 2785
>> 2786 config NR_CPUS_DEFAULT_64
>> 2787 bool
>> 2788
>> 2789 config NR_CPUS
>> 2790 int "Maximum number of CPUs (2-256)"
>> 2791 range 2 256
>> 2792 depends on SMP
>> 2793 default "4" if NR_CPUS_DEFAULT_4
>> 2794 default "8" if NR_CPUS_DEFAULT_8
>> 2795 default "16" if NR_CPUS_DEFAULT_16
>> 2796 default "32" if NR_CPUS_DEFAULT_32
>> 2797 default "64" if NR_CPUS_DEFAULT_64
946 help 2798 help
947 SMT scheduler support improves the C !! 2799 This allows you to specify the maximum number of CPUs which this
948 when dealing with POWER5 cpus at a c !! 2800 kernel will support. The maximum supported value is 32 for 32-bit
949 overhead in some places. If unsure s !! 2801 kernel and 64 for 64-bit kernels; the minimum value which makes
>> 2802 sense is 1 for Qemu (useful only for kernel debugging purposes)
>> 2803 and 2 for all others.
>> 2804
>> 2805 This is purely to save memory - each supported CPU adds
>> 2806 approximately eight kilobytes to the kernel image. For best
>> 2807 performance should round up your number of processors to the next
>> 2808 power of two.
>> 2809
>> 2810 config MIPS_PERF_SHARED_TC_COUNTERS
>> 2811 bool
>> 2812
>> 2813 config MIPS_NR_CPU_NR_MAP_1024
>> 2814 bool
950 2815
951 config PPC_DENORMALISATION !! 2816 config MIPS_NR_CPU_NR_MAP
952 bool "PowerPC denormalisation exceptio !! 2817 int
953 depends on PPC_BOOK3S_64 !! 2818 depends on SMP
954 default "y" if PPC_POWERNV !! 2819 default 1024 if MIPS_NR_CPU_NR_MAP_1024
955 help !! 2820 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
956 Add support for handling denormalisa !! 2821
957 values. Useful for bare metal only. !! 2822 #
958 !! 2823 # Timer Interrupt Frequency Configuration
959 config CMDLINE !! 2824 #
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 2825
968 choice 2826 choice
969 prompt "Kernel command line type" !! 2827 prompt "Timer frequency"
970 depends on CMDLINE != "" !! 2828 default HZ_250
971 default CMDLINE_FROM_BOOTLOADER !! 2829 help
972 !! 2830 Allows the configuration of the timer frequency.
973 config CMDLINE_FROM_BOOTLOADER !! 2831
974 bool "Use bootloader kernel arguments !! 2832 config HZ_24
975 help !! 2833 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
976 Uses the command-line options passed !! 2834
977 the boot loader doesn't provide any, !! 2835 config HZ_48
978 string provided in CMDLINE will be u !! 2836 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
979 !! 2837
980 config CMDLINE_EXTEND !! 2838 config HZ_100
981 bool "Extend bootloader kernel argumen !! 2839 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
982 help !! 2840
983 The command-line arguments provided !! 2841 config HZ_128
984 appended to the default kernel comma !! 2842 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
985 !! 2843
986 config CMDLINE_FORCE !! 2844 config HZ_250
987 bool "Always use the default kernel co !! 2845 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
988 help !! 2846
989 Always use the default kernel comman !! 2847 config HZ_256
990 loader passes other arguments to the !! 2848 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
991 This is useful if you cannot or don' !! 2849
992 command-line options your boot loade !! 2850 config HZ_1000
>> 2851 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2852
>> 2853 config HZ_1024
>> 2854 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
993 2855
994 endchoice 2856 endchoice
995 2857
996 config EXTRA_TARGETS !! 2858 config SYS_SUPPORTS_24HZ
997 string "Additional default image types !! 2859 bool
998 help <<
999 List additional targets to be built <<
1000 by spaces). This is useful for tar <<
1001 files in the .dts directory. <<
1002 2860
1003 Targets in this list will be build !! 2861 config SYS_SUPPORTS_48HZ
1004 target, or when the user does a 'ma !! 2862 bool
1005 'make zImage.initrd'. <<
1006 2863
1007 If unsure, leave blank !! 2864 config SYS_SUPPORTS_100HZ
>> 2865 bool
1008 2866
1009 config ARCH_WANTS_FREEZER_CONTROL !! 2867 config SYS_SUPPORTS_128HZ
1010 def_bool y !! 2868 bool
1011 depends on ADB_PMU <<
1012 2869
1013 source "kernel/power/Kconfig" !! 2870 config SYS_SUPPORTS_250HZ
>> 2871 bool
1014 2872
1015 config PPC_MEM_KEYS !! 2873 config SYS_SUPPORTS_256HZ
1016 prompt "PowerPC Memory Protection Key !! 2874 bool
1017 def_bool y <<
1018 depends on PPC_BOOK3S_64 <<
1019 depends on PPC_64S_HASH_MMU <<
1020 select ARCH_USES_HIGH_VMA_FLAGS <<
1021 select ARCH_HAS_PKEYS <<
1022 help <<
1023 Memory Protection Keys provides a m <<
1024 page-based protections, but without <<
1025 page tables when an application cha <<
1026 2875
1027 For details, see Documentation/core !! 2876 config SYS_SUPPORTS_1000HZ
>> 2877 bool
1028 2878
1029 If unsure, say y. !! 2879 config SYS_SUPPORTS_1024HZ
>> 2880 bool
>> 2881
>> 2882 config SYS_SUPPORTS_ARBIT_HZ
>> 2883 bool
>> 2884 default y if !SYS_SUPPORTS_24HZ && \
>> 2885 !SYS_SUPPORTS_48HZ && \
>> 2886 !SYS_SUPPORTS_100HZ && \
>> 2887 !SYS_SUPPORTS_128HZ && \
>> 2888 !SYS_SUPPORTS_250HZ && \
>> 2889 !SYS_SUPPORTS_256HZ && \
>> 2890 !SYS_SUPPORTS_1000HZ && \
>> 2891 !SYS_SUPPORTS_1024HZ
1030 2892
1031 config ARCH_PKEY_BITS !! 2893 config HZ
1032 int 2894 int
1033 default 5 !! 2895 default 24 if HZ_24
>> 2896 default 48 if HZ_48
>> 2897 default 100 if HZ_100
>> 2898 default 128 if HZ_128
>> 2899 default 250 if HZ_250
>> 2900 default 256 if HZ_256
>> 2901 default 1000 if HZ_1000
>> 2902 default 1024 if HZ_1024
>> 2903
>> 2904 config SCHED_HRTICK
>> 2905 def_bool HIGH_RES_TIMERS
>> 2906
>> 2907 config KEXEC
>> 2908 bool "Kexec system call"
>> 2909 select KEXEC_CORE
>> 2910 help
>> 2911 kexec is a system call that implements the ability to shutdown your
>> 2912 current kernel, and to start another kernel. It is like a reboot
>> 2913 but it is independent of the system firmware. And like a reboot
>> 2914 you can start any kernel with it, not just Linux.
>> 2915
>> 2916 The name comes from the similarity to the exec system call.
>> 2917
>> 2918 It is an ongoing process to be certain the hardware in a machine
>> 2919 is properly shutdown, so do not be surprised if this code does not
>> 2920 initially work for you. As of this writing the exact hardware
>> 2921 interface is strongly in flux, so no good recommendation can be
>> 2922 made.
>> 2923
>> 2924 config CRASH_DUMP
>> 2925 bool "Kernel crash dumps"
>> 2926 help
>> 2927 Generate crash dump after being started by kexec.
>> 2928 This should be normally only set in special crash dump kernels
>> 2929 which are loaded in the main kernel with kexec-tools into
>> 2930 a specially reserved region and then later executed after
>> 2931 a crash by kdump/kexec. The crash dump kernel must be compiled
>> 2932 to a memory address not used by the main kernel or firmware using
>> 2933 PHYSICAL_START.
>> 2934
>> 2935 config PHYSICAL_START
>> 2936 hex "Physical address where the kernel is loaded"
>> 2937 default "0xffffffff84000000"
>> 2938 depends on CRASH_DUMP
>> 2939 help
>> 2940 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
>> 2941 If you plan to use kernel for capturing the crash dump change
>> 2942 this value to start of the reserved region (the "X" value as
>> 2943 specified in the "crashkernel=YM@XM" command line boot parameter
>> 2944 passed to the panic-ed kernel).
>> 2945
>> 2946 config SECCOMP
>> 2947 bool "Enable seccomp to safely compute untrusted bytecode"
>> 2948 depends on PROC_FS
>> 2949 default y
>> 2950 help
>> 2951 This kernel feature is useful for number crunching applications
>> 2952 that may need to compute untrusted bytecode during their
>> 2953 execution. By using pipes or other transports made available to
>> 2954 the process as file descriptors supporting the read/write
>> 2955 syscalls, it's possible to isolate those applications in
>> 2956 their own address space using seccomp. Once seccomp is
>> 2957 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 2958 and the task is only allowed to execute a few safe syscalls
>> 2959 defined by each seccomp mode.
>> 2960
>> 2961 If unsure, say Y. Only embedded should say N here.
>> 2962
>> 2963 config MIPS_O32_FP64_SUPPORT
>> 2964 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
>> 2965 depends on 32BIT || MIPS32_O32
>> 2966 help
>> 2967 When this is enabled, the kernel will support use of 64-bit floating
>> 2968 point registers with binaries using the O32 ABI along with the
>> 2969 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
>> 2970 32-bit MIPS systems this support is at the cost of increasing the
>> 2971 size and complexity of the compiled FPU emulator. Thus if you are
>> 2972 running a MIPS32 system and know that none of your userland binaries
>> 2973 will require 64-bit floating point, you may wish to reduce the size
>> 2974 of your kernel & potentially improve FP emulation performance by
>> 2975 saying N here.
>> 2976
>> 2977 Although binutils currently supports use of this flag the details
>> 2978 concerning its effect upon the O32 ABI in userland are still being
>> 2979 worked on. In order to avoid userland becoming dependant upon current
>> 2980 behaviour before the details have been finalised, this option should
>> 2981 be considered experimental and only enabled by those working upon
>> 2982 said details.
>> 2983
>> 2984 If unsure, say N.
1034 2985
1035 config PPC_SECURE_BOOT !! 2986 config USE_OF
1036 prompt "Enable secure boot support" <<
1037 bool 2987 bool
1038 depends on PPC_POWERNV || PPC_PSERIES !! 2988 select OF
1039 depends on IMA_ARCH_POLICY !! 2989 select OF_EARLY_FLATTREE
1040 imply IMA_SECURE_AND_OR_TRUSTED_BOOT !! 2990 select IRQ_DOMAIN
1041 select PSERIES_PLPKS if PPC_PSERIES <<
1042 help <<
1043 Systems with firmware secure boot e <<
1044 policies to extend secure boot to t <<
1045 to enable OS secure boot on systems <<
1046 it. If in doubt say N. <<
1047 <<
1048 config PPC_SECVAR_SYSFS <<
1049 bool "Enable sysfs interface for POWE <<
1050 default y <<
1051 depends on PPC_SECURE_BOOT <<
1052 depends on SYSFS <<
1053 help <<
1054 POWER secure variables are managed <<
1055 These variables are exposed to user <<
1056 read/write operations on these vari <<
1057 secure boot enabled and want to exp <<
1058 2991
1059 endmenu !! 2992 config UHI_BOOT
>> 2993 bool
1060 2994
1061 config ISA_DMA_API !! 2995 config BUILTIN_DTB
1062 bool 2996 bool
1063 default PCI <<
1064 2997
1065 menu "Bus options" !! 2998 choice
>> 2999 prompt "Kernel appended dtb support" if USE_OF
>> 3000 default MIPS_NO_APPENDED_DTB
1066 3001
1067 config ISA !! 3002 config MIPS_NO_APPENDED_DTB
1068 bool "Support for ISA-bus hardware" !! 3003 bool "None"
1069 depends on PPC_CHRP !! 3004 help
1070 select PPC_I8259 !! 3005 Do not enable appended dtb support.
1071 help !! 3006
1072 Find out whether you have ISA slots !! 3007 config MIPS_ELF_APPENDED_DTB
1073 name of a bus system, i.e. the way !! 3008 bool "vmlinux"
1074 inside your box. If you have an Ap !! 3009 help
1075 have an IBM RS/6000 or pSeries mach !! 3010 With this option, the boot code will look for a device tree binary
1076 embedded board, consult your board !! 3011 DTB) included in the vmlinux ELF section .appended_dtb. By default
>> 3012 it is empty and the DTB can be appended using binutils command
>> 3013 objcopy:
>> 3014
>> 3015 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
>> 3016
>> 3017 This is meant as a backward compatiblity convenience for those
>> 3018 systems with a bootloader that can't be upgraded to accommodate
>> 3019 the documented boot protocol using a device tree.
>> 3020
>> 3021 config MIPS_RAW_APPENDED_DTB
>> 3022 bool "vmlinux.bin or vmlinuz.bin"
>> 3023 help
>> 3024 With this option, the boot code will look for a device tree binary
>> 3025 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
>> 3026 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
>> 3027
>> 3028 This is meant as a backward compatibility convenience for those
>> 3029 systems with a bootloader that can't be upgraded to accommodate
>> 3030 the documented boot protocol using a device tree.
>> 3031
>> 3032 Beware that there is very little in terms of protection against
>> 3033 this option being confused by leftover garbage in memory that might
>> 3034 look like a DTB header after a reboot if no actual DTB is appended
>> 3035 to vmlinux.bin. Do not leave this option active in a production kernel
>> 3036 if you don't intend to always append a DTB.
>> 3037 endchoice
1077 3038
1078 config GENERIC_ISA_DMA !! 3039 choice
>> 3040 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
>> 3041 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
>> 3042 !MIPS_MALTA && \
>> 3043 !CAVIUM_OCTEON_SOC
>> 3044 default MIPS_CMDLINE_FROM_BOOTLOADER
>> 3045
>> 3046 config MIPS_CMDLINE_FROM_DTB
>> 3047 depends on USE_OF
>> 3048 bool "Dtb kernel arguments if available"
>> 3049
>> 3050 config MIPS_CMDLINE_DTB_EXTEND
>> 3051 depends on USE_OF
>> 3052 bool "Extend dtb kernel arguments with bootloader arguments"
>> 3053
>> 3054 config MIPS_CMDLINE_FROM_BOOTLOADER
>> 3055 bool "Bootloader kernel arguments if available"
>> 3056
>> 3057 config MIPS_CMDLINE_BUILTIN_EXTEND
>> 3058 depends on CMDLINE_BOOL
>> 3059 bool "Extend builtin kernel arguments with bootloader arguments"
>> 3060 endchoice
>> 3061
>> 3062 endmenu
>> 3063
>> 3064 config LOCKDEP_SUPPORT
1079 bool 3065 bool
1080 depends on ISA_DMA_API <<
1081 default y 3066 default y
1082 3067
1083 config PPC_INDIRECT_PCI !! 3068 config STACKTRACE_SUPPORT
1084 bool 3069 bool
1085 depends on PCI !! 3070 default y
1086 default y if 44x <<
1087 3071
1088 config SBUS !! 3072 config HAVE_LATENCYTOP_SUPPORT
1089 bool 3073 bool
>> 3074 default y
1090 3075
1091 config FSL_SOC !! 3076 config PGTABLE_LEVELS
>> 3077 int
>> 3078 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
>> 3079 default 3 if 64BIT && !PAGE_SIZE_64KB
>> 3080 default 2
>> 3081
>> 3082 config MIPS_AUTO_PFN_OFFSET
1092 bool 3083 bool
1093 3084
1094 config FSL_PCI !! 3085 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 3086
>> 3087 config PCI_DRIVERS_GENERIC
>> 3088 select PCI_DOMAINS_GENERIC if PCI
1095 bool 3089 bool
1096 select ARCH_HAS_DMA_SET_MASK <<
1097 select PPC_INDIRECT_PCI <<
1098 select PCI_QUIRKS <<
1099 3090
1100 config FSL_PMC !! 3091 config PCI_DRIVERS_LEGACY
>> 3092 def_bool !PCI_DRIVERS_GENERIC
>> 3093 select NO_GENERIC_PCI_IOPORT_MAP
>> 3094 select PCI_DOMAINS if PCI
>> 3095
>> 3096 #
>> 3097 # ISA support is now enabled via select. Too many systems still have the one
>> 3098 # or other ISA chip on the board that users don't know about so don't expect
>> 3099 # users to choose the right thing ...
>> 3100 #
>> 3101 config ISA
1101 bool 3102 bool
1102 default y <<
1103 depends on SUSPEND && (PPC_85xx || PP <<
1104 help <<
1105 Freescale MPC85xx/MPC86xx power man <<
1106 (suspend/resume). For MPC83xx see p <<
1107 3103
1108 config PPC4xx_CPM !! 3104 config TC
>> 3105 bool "TURBOchannel support"
>> 3106 depends on MACH_DECSTATION
>> 3107 help
>> 3108 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 3109 processors. TURBOchannel programming specifications are available
>> 3110 at:
>> 3111 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
>> 3112 and:
>> 3113 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
>> 3114 Linux driver support status is documented at:
>> 3115 <http://www.linux-mips.org/wiki/DECstation>
>> 3116
>> 3117 config MMU
1109 bool 3118 bool
1110 default y 3119 default y
1111 depends on SUSPEND && 44x <<
1112 help <<
1113 PPC4xx Clock Power Management (CPM) <<
1114 It also enables support for two dif <<
1115 and idle-doze). <<
1116 3120
1117 config FSL_LBC !! 3121 config ARCH_MMAP_RND_BITS_MIN
1118 bool "Freescale Local Bus support" !! 3122 default 12 if 64BIT
1119 help !! 3123 default 8
1120 Enables reporting of errors from th !! 3124
1121 controller. Also contains some com !! 3125 config ARCH_MMAP_RND_BITS_MAX
1122 drivers for specific local bus peri !! 3126 default 18 if 64BIT
>> 3127 default 15
1123 3128
1124 config FSL_GTM !! 3129 config ARCH_MMAP_RND_COMPAT_BITS_MIN
>> 3130 default 8
>> 3131
>> 3132 config ARCH_MMAP_RND_COMPAT_BITS_MAX
>> 3133 default 15
>> 3134
>> 3135 config I8253
1125 bool 3136 bool
1126 depends on PPC_83xx || QUICC_ENGINE | !! 3137 select CLKSRC_I8253
1127 help !! 3138 select CLKEVT_I8253
1128 Freescale General-purpose Timers su !! 3139 select MIPS_EXTERNAL_TIMER
1129 3140
1130 config FSL_RIO !! 3141 config ZONE_DMA
1131 bool "Freescale Embedded SRIO Control !! 3142 bool
1132 depends on RAPIDIO = y && HAVE_RAPIDI !! 3143
1133 default "n" !! 3144 config ZONE_DMA32
1134 help !! 3145 bool
1135 Include support for RapidIO control <<
1136 processors (MPC8548, MPC8641, etc). <<
1137 3146
1138 endmenu 3147 endmenu
1139 3148
1140 config NONSTATIC_KERNEL !! 3149 config TRAD_SIGNALS
1141 bool 3150 bool
1142 3151
1143 menu "Advanced setup" !! 3152 config MIPS32_COMPAT
1144 depends on PPC32 !! 3153 bool
1145 <<
1146 config ADVANCED_OPTIONS <<
1147 bool "Prompt for advanced kernel conf <<
1148 help <<
1149 This option will enable prompting f <<
1150 configuration options. These optio <<
1151 work if they are set incorrectly, b <<
1152 aspects of kernel memory management <<
1153 3154
1154 Unless you know what you are doing, !! 3155 config COMPAT
>> 3156 bool
1155 3157
1156 comment "Default settings for advanced config !! 3158 config SYSVIPC_COMPAT
1157 depends on !ADVANCED_OPTIONS !! 3159 bool
1158 3160
1159 config LOWMEM_SIZE_BOOL !! 3161 config MIPS32_O32
1160 bool "Set maximum low memory" !! 3162 bool "Kernel support for o32 binaries"
1161 depends on ADVANCED_OPTIONS !! 3163 depends on 64BIT
1162 help !! 3164 select ARCH_WANT_OLD_COMPAT_IPC
1163 This option allows you to set the m !! 3165 select COMPAT
1164 will be used as "low memory", that !! 3166 select MIPS32_COMPAT
1165 access directly, without having to !! 3167 select SYSVIPC_COMPAT if SYSVIPC
1166 This can be useful in optimizing th !! 3168 help
1167 memory. !! 3169 Select this option if you want to run o32 binaries. These are pure
>> 3170 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 3171 existing binaries are in this format.
1168 3172
1169 Say N here unless you know what you !! 3173 If unsure, say Y.
1170 3174
1171 config LOWMEM_SIZE !! 3175 config MIPS32_N32
1172 hex "Maximum low memory size (in byte !! 3176 bool "Kernel support for n32 binaries"
1173 default "0x30000000" !! 3177 depends on 64BIT
>> 3178 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
>> 3179 select COMPAT
>> 3180 select MIPS32_COMPAT
>> 3181 select SYSVIPC_COMPAT if SYSVIPC
>> 3182 help
>> 3183 Select this option if you want to run n32 binaries. These are
>> 3184 64-bit binaries using 32-bit quantities for addressing and certain
>> 3185 data that would normally be 64-bit. They are used in special
>> 3186 cases.
1174 3187
1175 config LOWMEM_CAM_NUM_BOOL !! 3188 If unsure, say N.
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 3189
1185 Say N here unless you know what you !! 3190 config BINFMT_ELF32
>> 3191 bool
>> 3192 default y if MIPS32_O32 || MIPS32_N32
>> 3193 select ELFCORE
1186 3194
1187 config LOWMEM_CAM_NUM !! 3195 menu "Power management options"
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 3196
1195 config DYNAMIC_MEMSTART !! 3197 config ARCH_HIBERNATION_POSSIBLE
1196 bool "Enable page aligned dynamic loa !! 3198 def_bool y
1197 depends on ADVANCED_OPTIONS && FLATME !! 3199 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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 3200
1250 Say N here unless you know what you !! 3201 config ARCH_SUSPEND_POSSIBLE
>> 3202 def_bool y
>> 3203 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
1251 3204
1252 config PHYSICAL_START !! 3205 source "kernel/power/Kconfig"
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 3206
1299 endmenu 3207 endmenu
1300 3208
1301 if PPC64 !! 3209 config MIPS_EXTERNAL_TIMER
1302 # This value must have zeroes in the bottom 6 !! 3210 bool
1303 config PAGE_OFFSET !! 3211
1304 hex !! 3212 menu "CPU Power Management"
1305 default "0xc000000000000000" !! 3213
1306 config KERNEL_START !! 3214 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
1307 hex !! 3215 source "drivers/cpufreq/Kconfig"
1308 default "0xc000000000000000" <<
1309 config PHYSICAL_START <<
1310 hex <<
1311 default "0x00000000" <<
1312 endif 3216 endif
1313 3217
1314 config PPC_LIB_RHEAP !! 3218 source "drivers/cpuidle/Kconfig"
1315 bool !! 3219
>> 3220 endmenu
1316 3221
1317 source "arch/powerpc/kvm/Kconfig" !! 3222 source "drivers/firmware/Kconfig"
1318 3223
1319 source "kernel/livepatch/Kconfig" !! 3224 source "arch/mips/kvm/Kconfig"
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.