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_BINFMT_ELF_STATE
113 !! 6 select ARCH_CLOCKSOURCE_DATA
114 config GENERIC_HWEIGHT !! 7 select ARCH_DISCARD_MEMBLOCK
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_SUPPORTS_UPROBES
118 config PPC <<
119 bool <<
120 default y <<
121 # <<
122 # Please keep this list sorted alphabe <<
123 # <<
124 select ARCH_32BIT_OFF_T if PPC32 <<
125 select ARCH_DISABLE_KASAN_INLINE <<
126 select ARCH_DMA_DEFAULT_COHERENT <<
127 select ARCH_ENABLE_MEMORY_HOTPLUG <<
128 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
129 select ARCH_HAS_COPY_MC <<
130 select ARCH_HAS_CURRENT_STACK_POINTER <<
131 select ARCH_HAS_DEBUG_VIRTUAL <<
132 select ARCH_HAS_DEBUG_VM_PGTABLE <<
133 select ARCH_HAS_DEBUG_WX <<
134 select ARCH_HAS_DEVMEM_IS_ALLOWED <<
135 select ARCH_HAS_DMA_MAP_DIRECT <<
136 select ARCH_HAS_DMA_OPS <<
137 select ARCH_HAS_FORTIFY_SOURCE <<
138 select ARCH_HAS_GCOV_PROFILE_ALL <<
139 select ARCH_HAS_KCOV <<
140 select ARCH_HAS_KERNEL_FPU_SUPPORT <<
141 select ARCH_HAS_MEMBARRIER_CALLBACKS <<
142 select ARCH_HAS_MEMBARRIER_SYNC_CORE <<
143 select ARCH_HAS_MEMREMAP_COMPAT_ALIGN <<
144 select ARCH_HAS_MMIOWB <<
145 select ARCH_HAS_NON_OVERLAPPING_ADDRES <<
146 select ARCH_HAS_PHYS_TO_DMA <<
147 select ARCH_HAS_PMEM_API <<
148 select ARCH_HAS_PTE_DEVMAP <<
149 select ARCH_HAS_PTE_SPECIAL <<
150 select ARCH_HAS_SCALED_CPUTIME <<
151 select ARCH_HAS_SET_MEMORY <<
152 select ARCH_HAS_STRICT_KERNEL_RWX <<
153 select ARCH_HAS_STRICT_KERNEL_RWX <<
154 select ARCH_HAS_STRICT_MODULE_RWX <<
155 select ARCH_HAS_SYSCALL_WRAPPER <<
156 select ARCH_HAS_TICK_BROADCAST <<
157 select ARCH_HAS_UACCESS_FLUSHCACHE <<
158 select ARCH_HAS_UBSAN <<
159 select ARCH_HAVE_NMI_SAFE_CMPXCHG <<
160 select ARCH_HAVE_EXTRA_ELF_NOTES <<
161 select ARCH_KEEP_MEMBLOCK <<
162 select ARCH_MHP_MEMMAP_ON_MEMORY_ENABL <<
163 select ARCH_MIGHT_HAVE_PC_PARPORT <<
164 select ARCH_MIGHT_HAVE_PC_SERIO <<
165 select ARCH_OPTIONAL_KERNEL_RWX <<
166 select ARCH_OPTIONAL_KERNEL_RWX_DEFAUL <<
167 select ARCH_SPLIT_ARG64 <<
168 select ARCH_STACKWALK <<
169 select ARCH_SUPPORTS_ATOMIC_RMW <<
170 select ARCH_SUPPORTS_DEBUG_PAGEALLOC <<
171 select ARCH_USE_BUILTIN_BSWAP 11 select ARCH_USE_BUILTIN_BSWAP
172 select ARCH_USE_CMPXCHG_LOCKREF !! 12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
173 select ARCH_USE_MEMTEST !! 13 select ARCH_USE_QUEUED_RWLOCKS
174 select ARCH_USE_QUEUED_RWLOCKS !! 14 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 15 select ARCH_WANT_IPC_PARSE_VERSION
178 select ARCH_WANT_IRQS_OFF_ACTIVATE_MM !! 16 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 17 select CLONE_BACKWARDS
186 select CPUMASK_OFFSTACK !! 18 select CPU_PM if CPU_IDLE
187 select DCACHE_WORD_ACCESS !! 19 select DMA_DIRECT_OPS
188 select DMA_OPS_BYPASS !! 20 select GENERIC_ATOMIC64 if !64BIT
189 select DYNAMIC_FTRACE !! 21 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 22 select GENERIC_CMOS_UPDATE
197 select GENERIC_CPU_AUTOPROBE 23 select GENERIC_CPU_AUTOPROBE
198 select GENERIC_CPU_VULNERABILITIES !! 24 select GENERIC_IOMAP
199 select GENERIC_EARLY_IOREMAP !! 25 select GENERIC_IRQ_PROBE
200 select GENERIC_GETTIMEOFDAY <<
201 select GENERIC_IDLE_POLL_SETUP <<
202 select GENERIC_IOREMAP <<
203 select GENERIC_IRQ_SHOW 26 select GENERIC_IRQ_SHOW
204 select GENERIC_IRQ_SHOW_LEVEL !! 27 select GENERIC_LIB_ASHLDI3
205 select GENERIC_PCI_IOMAP !! 28 select GENERIC_LIB_ASHRDI3
206 select GENERIC_PTDUMP !! 29 select GENERIC_LIB_CMPDI2
>> 30 select GENERIC_LIB_LSHRDI3
>> 31 select GENERIC_LIB_UCMPDI2
>> 32 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
207 select GENERIC_SMP_IDLE_THREAD 33 select GENERIC_SMP_IDLE_THREAD
208 select GENERIC_TIME_VSYSCALL 34 select GENERIC_TIME_VSYSCALL
209 select GENERIC_VDSO_TIME_NS !! 35 select HANDLE_DOMAIN_IRQ
210 select HAS_IOPORT !! 36 select HAVE_ARCH_COMPILER_H
211 select HAVE_ARCH_AUDITSYSCALL <<
212 select HAVE_ARCH_HUGE_VMALLOC <<
213 select HAVE_ARCH_HUGE_VMAP <<
214 select HAVE_ARCH_JUMP_LABEL 37 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 38 select HAVE_ARCH_KGDB
225 select HAVE_ARCH_MMAP_RND_BITS !! 39 select HAVE_ARCH_MMAP_RND_BITS if MMU
226 select HAVE_ARCH_MMAP_RND_COMPAT_BITS !! 40 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
227 select HAVE_ARCH_NVRAM_OPS <<
228 select HAVE_ARCH_SECCOMP_FILTER 41 select HAVE_ARCH_SECCOMP_FILTER
229 select HAVE_ARCH_TRACEHOOK 42 select HAVE_ARCH_TRACEHOOK
230 select HAVE_ASM_MODVERSIONS !! 43 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
231 select HAVE_CONTEXT_TRACKING_USER !! 44 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
>> 45 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
>> 46 select HAVE_CONTEXT_TRACKING
>> 47 select HAVE_COPY_THREAD_TLS
232 select HAVE_C_RECORDMCOUNT 48 select HAVE_C_RECORDMCOUNT
233 select HAVE_DEBUG_KMEMLEAK 49 select HAVE_DEBUG_KMEMLEAK
234 select HAVE_DEBUG_STACKOVERFLOW 50 select HAVE_DEBUG_STACKOVERFLOW
>> 51 select HAVE_DMA_CONTIGUOUS
235 select HAVE_DYNAMIC_FTRACE 52 select HAVE_DYNAMIC_FTRACE
236 select HAVE_DYNAMIC_FTRACE_WITH_ARGS !! 53 select HAVE_EXIT_THREAD
237 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
238 select HAVE_EBPF_JIT <<
239 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
240 select HAVE_GUP_FAST <<
241 select HAVE_FTRACE_MCOUNT_RECORD 54 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 55 select HAVE_FUNCTION_GRAPH_TRACER
246 select HAVE_FUNCTION_TRACER !! 56 select HAVE_FUNCTION_TRACER
247 select HAVE_GCC_PLUGINS !! 57 select HAVE_GENERIC_DMA_COHERENT
248 select HAVE_GENERIC_VDSO !! 58 select HAVE_IDE
249 select HAVE_HARDLOCKUP_DETECTOR_ARCH !! 59 select HAVE_IRQ_EXIT_ON_IRQ_STACK
250 select HAVE_HARDLOCKUP_DETECTOR_PERF <<
251 select HAVE_HW_BREAKPOINT <<
252 select HAVE_IOREMAP_PROT <<
253 select HAVE_IRQ_TIME_ACCOUNTING 60 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 61 select HAVE_KPROBES
259 select HAVE_KPROBES_ON_FTRACE <<
260 select HAVE_KRETPROBES 62 select HAVE_KRETPROBES
261 select HAVE_LD_DEAD_CODE_DATA_ELIMINAT !! 63 select HAVE_MEMBLOCK_NODE_MAP
262 select HAVE_LIVEPATCH <<
263 select HAVE_MOD_ARCH_SPECIFIC 64 select HAVE_MOD_ARCH_SPECIFIC
264 select HAVE_NMI !! 65 select HAVE_NMI
265 select HAVE_OPTPROBES !! 66 select HAVE_OPROFILE
266 select HAVE_OBJTOOL <<
267 select HAVE_OBJTOOL_MCOUNT <<
268 select HAVE_PERF_EVENTS 67 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 68 select HAVE_REGS_AND_STACK_ACCESS_API
274 select HAVE_RELIABLE_STACKTRACE <<
275 select HAVE_RSEQ 69 select HAVE_RSEQ
276 select HAVE_SETUP_PER_CPU_AREA !! 70 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 71 select HAVE_SYSCALL_TRACEPOINTS
282 select HAVE_VIRT_CPU_ACCOUNTING !! 72 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 73 select IRQ_FORCED_THREADING
290 select KASAN_VMALLOC !! 74 select MODULES_USE_ELF_RELA if MODULES && 64BIT
291 select LOCK_MM_AND_FIND_VMA !! 75 select MODULES_USE_ELF_REL if MODULES
292 select MMU_GATHER_PAGE_SIZE !! 76 select PERF_USE_VMALLOC
293 select MMU_GATHER_RCU_TABLE_FREE <<
294 select MMU_GATHER_MERGE_VMAS <<
295 select MMU_LAZY_TLB_SHOOTDOWN <<
296 select MODULES_USE_ELF_RELA <<
297 select NEED_DMA_MAP_STATE <<
298 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
299 select NEED_PER_CPU_PAGE_FIRST_CHUNK <<
300 select NEED_SG_DMA_LENGTH <<
301 select OF <<
302 select OF_EARLY_FLATTREE <<
303 select OLD_SIGACTION <<
304 select OLD_SIGSUSPEND <<
305 select PCI_DOMAINS <<
306 select PCI_MSI_ARCH_FALLBACKS <<
307 select PCI_SYSCALL <<
308 select PPC_DAWR <<
309 select RTC_LIB 77 select RTC_LIB
310 select SPARSE_IRQ <<
311 select STRICT_KERNEL_RWX if STRICT_MOD <<
312 select SYSCTL_EXCEPTION_TRACE 78 select SYSCTL_EXCEPTION_TRACE
313 select THREAD_INFO_IN_TASK !! 79 select VIRT_TO_BUS
314 select TRACE_IRQFLAGS_SUPPORT !! 80
315 select VDSO_GETRANDOM !! 81 menu "Machine selection"
>> 82
>> 83 choice
>> 84 prompt "System type"
>> 85 default MIPS_GENERIC
>> 86
>> 87 config MIPS_GENERIC
>> 88 bool "Generic board-agnostic MIPS kernel"
>> 89 select BOOT_RAW
>> 90 select BUILTIN_DTB
>> 91 select CEVT_R4K
>> 92 select CLKSRC_MIPS_GIC
>> 93 select COMMON_CLK
>> 94 select CPU_MIPSR2_IRQ_VI
>> 95 select CPU_MIPSR2_IRQ_EI
>> 96 select CSRC_R4K
>> 97 select DMA_PERDEV_COHERENT
>> 98 select HW_HAS_PCI
>> 99 select IRQ_MIPS_CPU
>> 100 select LIBFDT
>> 101 select MIPS_AUTO_PFN_OFFSET
>> 102 select MIPS_CPU_SCACHE
>> 103 select MIPS_GIC
>> 104 select MIPS_L1_CACHE_SHIFT_7
>> 105 select NO_EXCEPT_FILL
>> 106 select PCI_DRIVERS_GENERIC
>> 107 select PINCTRL
>> 108 select SMP_UP if SMP
>> 109 select SWAP_IO_SPACE
>> 110 select SYS_HAS_CPU_MIPS32_R1
>> 111 select SYS_HAS_CPU_MIPS32_R2
>> 112 select SYS_HAS_CPU_MIPS32_R6
>> 113 select SYS_HAS_CPU_MIPS64_R1
>> 114 select SYS_HAS_CPU_MIPS64_R2
>> 115 select SYS_HAS_CPU_MIPS64_R6
>> 116 select SYS_SUPPORTS_32BIT_KERNEL
>> 117 select SYS_SUPPORTS_64BIT_KERNEL
>> 118 select SYS_SUPPORTS_BIG_ENDIAN
>> 119 select SYS_SUPPORTS_HIGHMEM
>> 120 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 121 select SYS_SUPPORTS_MICROMIPS
>> 122 select SYS_SUPPORTS_MIPS_CPS
>> 123 select SYS_SUPPORTS_MIPS16
>> 124 select SYS_SUPPORTS_MULTITHREADING
>> 125 select SYS_SUPPORTS_RELOCATABLE
>> 126 select SYS_SUPPORTS_SMARTMIPS
>> 127 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 128 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 129 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 130 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 131 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 132 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 133 select USE_OF
>> 134 select UHI_BOOT
>> 135 help
>> 136 Select this to build a kernel which aims to support multiple boards,
>> 137 generally using a flattened device tree passed from the bootloader
>> 138 using the boot protocol defined in the UHI (Unified Hosting
>> 139 Interface) specification.
>> 140
>> 141 config MIPS_ALCHEMY
>> 142 bool "Alchemy processor based machines"
>> 143 select PHYS_ADDR_T_64BIT
>> 144 select CEVT_R4K
>> 145 select CSRC_R4K
>> 146 select IRQ_MIPS_CPU
>> 147 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
>> 148 select SYS_HAS_CPU_MIPS32_R1
>> 149 select SYS_SUPPORTS_32BIT_KERNEL
>> 150 select SYS_SUPPORTS_APM_EMULATION
>> 151 select GPIOLIB
>> 152 select SYS_SUPPORTS_ZBOOT
>> 153 select COMMON_CLK
>> 154
>> 155 config AR7
>> 156 bool "Texas Instruments AR7"
>> 157 select BOOT_ELF32
>> 158 select DMA_NONCOHERENT
>> 159 select CEVT_R4K
>> 160 select CSRC_R4K
>> 161 select IRQ_MIPS_CPU
>> 162 select NO_EXCEPT_FILL
>> 163 select SWAP_IO_SPACE
>> 164 select SYS_HAS_CPU_MIPS32_R1
>> 165 select SYS_HAS_EARLY_PRINTK
>> 166 select SYS_SUPPORTS_32BIT_KERNEL
>> 167 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 168 select SYS_SUPPORTS_MIPS16
>> 169 select SYS_SUPPORTS_ZBOOT_UART16550
>> 170 select GPIOLIB
>> 171 select VLYNQ
>> 172 select HAVE_CLK
>> 173 help
>> 174 Support for the Texas Instruments AR7 System-on-a-Chip
>> 175 family: TNETD7100, 7200 and 7300.
>> 176
>> 177 config ATH25
>> 178 bool "Atheros AR231x/AR531x SoC support"
>> 179 select CEVT_R4K
>> 180 select CSRC_R4K
>> 181 select DMA_NONCOHERENT
>> 182 select IRQ_MIPS_CPU
>> 183 select IRQ_DOMAIN
>> 184 select SYS_HAS_CPU_MIPS32_R1
>> 185 select SYS_SUPPORTS_BIG_ENDIAN
>> 186 select SYS_SUPPORTS_32BIT_KERNEL
>> 187 select SYS_HAS_EARLY_PRINTK
>> 188 help
>> 189 Support for Atheros AR231x and Atheros AR531x based boards
>> 190
>> 191 config ATH79
>> 192 bool "Atheros AR71XX/AR724X/AR913X based boards"
>> 193 select ARCH_HAS_RESET_CONTROLLER
>> 194 select BOOT_RAW
>> 195 select CEVT_R4K
>> 196 select CSRC_R4K
>> 197 select DMA_NONCOHERENT
>> 198 select GPIOLIB
>> 199 select PINCTRL
>> 200 select HAVE_CLK
>> 201 select COMMON_CLK
>> 202 select CLKDEV_LOOKUP
>> 203 select IRQ_MIPS_CPU
>> 204 select MIPS_MACHINE
>> 205 select SYS_HAS_CPU_MIPS32_R2
>> 206 select SYS_HAS_EARLY_PRINTK
>> 207 select SYS_SUPPORTS_32BIT_KERNEL
>> 208 select SYS_SUPPORTS_BIG_ENDIAN
>> 209 select SYS_SUPPORTS_MIPS16
>> 210 select SYS_SUPPORTS_ZBOOT_UART_PROM
>> 211 select USE_OF
>> 212 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
>> 213 help
>> 214 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
>> 215
>> 216 config BMIPS_GENERIC
>> 217 bool "Broadcom Generic BMIPS kernel"
>> 218 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
>> 219 select ARCH_HAS_PHYS_TO_DMA
>> 220 select BOOT_RAW
>> 221 select NO_EXCEPT_FILL
>> 222 select USE_OF
>> 223 select CEVT_R4K
>> 224 select CSRC_R4K
>> 225 select SYNC_R4K
>> 226 select COMMON_CLK
>> 227 select BCM6345_L1_IRQ
>> 228 select BCM7038_L1_IRQ
>> 229 select BCM7120_L2_IRQ
>> 230 select BRCMSTB_L2_IRQ
>> 231 select IRQ_MIPS_CPU
>> 232 select DMA_NONCOHERENT
>> 233 select SYS_SUPPORTS_32BIT_KERNEL
>> 234 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 235 select SYS_SUPPORTS_BIG_ENDIAN
>> 236 select SYS_SUPPORTS_HIGHMEM
>> 237 select SYS_HAS_CPU_BMIPS32_3300
>> 238 select SYS_HAS_CPU_BMIPS4350
>> 239 select SYS_HAS_CPU_BMIPS4380
>> 240 select SYS_HAS_CPU_BMIPS5000
>> 241 select SWAP_IO_SPACE
>> 242 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 243 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 244 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 245 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 246 select HARDIRQS_SW_RESEND
>> 247 help
>> 248 Build a generic DT-based kernel image that boots on select
>> 249 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
>> 250 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
>> 251 must be set appropriately for your board.
>> 252
>> 253 config BCM47XX
>> 254 bool "Broadcom BCM47XX based boards"
>> 255 select BOOT_RAW
>> 256 select CEVT_R4K
>> 257 select CSRC_R4K
>> 258 select DMA_NONCOHERENT
>> 259 select HW_HAS_PCI
>> 260 select IRQ_MIPS_CPU
>> 261 select SYS_HAS_CPU_MIPS32_R1
>> 262 select NO_EXCEPT_FILL
>> 263 select SYS_SUPPORTS_32BIT_KERNEL
>> 264 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 265 select SYS_SUPPORTS_MIPS16
>> 266 select SYS_SUPPORTS_ZBOOT
>> 267 select SYS_HAS_EARLY_PRINTK
>> 268 select USE_GENERIC_EARLY_PRINTK_8250
>> 269 select GPIOLIB
>> 270 select LEDS_GPIO_REGISTER
>> 271 select BCM47XX_NVRAM
>> 272 select BCM47XX_SPROM
>> 273 select BCM47XX_SSB if !BCM47XX_BCMA
>> 274 help
>> 275 Support for BCM47XX based boards
>> 276
>> 277 config BCM63XX
>> 278 bool "Broadcom BCM63XX based boards"
>> 279 select BOOT_RAW
>> 280 select CEVT_R4K
>> 281 select CSRC_R4K
>> 282 select SYNC_R4K
>> 283 select DMA_NONCOHERENT
>> 284 select IRQ_MIPS_CPU
>> 285 select SYS_SUPPORTS_32BIT_KERNEL
>> 286 select SYS_SUPPORTS_BIG_ENDIAN
>> 287 select SYS_HAS_EARLY_PRINTK
>> 288 select SWAP_IO_SPACE
>> 289 select GPIOLIB
>> 290 select HAVE_CLK
>> 291 select MIPS_L1_CACHE_SHIFT_4
>> 292 select CLKDEV_LOOKUP
>> 293 help
>> 294 Support for BCM63XX based boards
>> 295
>> 296 config MIPS_COBALT
>> 297 bool "Cobalt Server"
>> 298 select CEVT_R4K
>> 299 select CSRC_R4K
>> 300 select CEVT_GT641XX
>> 301 select DMA_NONCOHERENT
>> 302 select HW_HAS_PCI
>> 303 select I8253
>> 304 select I8259
>> 305 select IRQ_MIPS_CPU
>> 306 select IRQ_GT641XX
>> 307 select PCI_GT64XXX_PCI0
>> 308 select PCI
>> 309 select SYS_HAS_CPU_NEVADA
>> 310 select SYS_HAS_EARLY_PRINTK
>> 311 select SYS_SUPPORTS_32BIT_KERNEL
>> 312 select SYS_SUPPORTS_64BIT_KERNEL
>> 313 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 314 select USE_GENERIC_EARLY_PRINTK_8250
>> 315
>> 316 config MACH_DECSTATION
>> 317 bool "DECstations"
>> 318 select BOOT_ELF32
>> 319 select CEVT_DS1287
>> 320 select CEVT_R4K if CPU_R4X00
>> 321 select CSRC_IOASIC
>> 322 select CSRC_R4K if CPU_R4X00
>> 323 select CPU_DADDI_WORKAROUNDS if 64BIT
>> 324 select CPU_R4000_WORKAROUNDS if 64BIT
>> 325 select CPU_R4400_WORKAROUNDS if 64BIT
>> 326 select DMA_NONCOHERENT
>> 327 select NO_IOPORT_MAP
>> 328 select IRQ_MIPS_CPU
>> 329 select SYS_HAS_CPU_R3000
>> 330 select SYS_HAS_CPU_R4X00
>> 331 select SYS_SUPPORTS_32BIT_KERNEL
>> 332 select SYS_SUPPORTS_64BIT_KERNEL
>> 333 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 334 select SYS_SUPPORTS_128HZ
>> 335 select SYS_SUPPORTS_256HZ
>> 336 select SYS_SUPPORTS_1024HZ
>> 337 select MIPS_L1_CACHE_SHIFT_4
>> 338 help
>> 339 This enables support for DEC's MIPS based workstations. For details
>> 340 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
>> 341 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 342
>> 343 If you have one of the following DECstation Models you definitely
>> 344 want to choose R4xx0 for the CPU Type:
>> 345
>> 346 DECstation 5000/50
>> 347 DECstation 5000/150
>> 348 DECstation 5000/260
>> 349 DECsystem 5900/260
>> 350
>> 351 otherwise choose R3000.
>> 352
>> 353 config MACH_JAZZ
>> 354 bool "Jazz family of machines"
>> 355 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 356 select ARCH_MIGHT_HAVE_PC_SERIO
>> 357 select FW_ARC
>> 358 select FW_ARC32
>> 359 select ARCH_MAY_HAVE_PC_FDC
>> 360 select CEVT_R4K
>> 361 select CSRC_R4K
>> 362 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 363 select GENERIC_ISA_DMA
>> 364 select HAVE_PCSPKR_PLATFORM
>> 365 select IRQ_MIPS_CPU
>> 366 select I8253
>> 367 select I8259
>> 368 select ISA
>> 369 select SYS_HAS_CPU_R4X00
>> 370 select SYS_SUPPORTS_32BIT_KERNEL
>> 371 select SYS_SUPPORTS_64BIT_KERNEL
>> 372 select SYS_SUPPORTS_100HZ
>> 373 help
>> 374 This a family of machines based on the MIPS R4030 chipset which was
>> 375 used by several vendors to build RISC/os and Windows NT workstations.
>> 376 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
>> 377 Olivetti M700-10 workstations.
>> 378
>> 379 config MACH_INGENIC
>> 380 bool "Ingenic SoC based machines"
>> 381 select SYS_SUPPORTS_32BIT_KERNEL
>> 382 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 383 select SYS_SUPPORTS_ZBOOT_UART16550
>> 384 select DMA_NONCOHERENT
>> 385 select IRQ_MIPS_CPU
>> 386 select PINCTRL
>> 387 select GPIOLIB
>> 388 select COMMON_CLK
>> 389 select GENERIC_IRQ_CHIP
>> 390 select BUILTIN_DTB
>> 391 select USE_OF
>> 392 select LIBFDT
>> 393
>> 394 config LANTIQ
>> 395 bool "Lantiq based platforms"
>> 396 select DMA_NONCOHERENT
>> 397 select IRQ_MIPS_CPU
>> 398 select CEVT_R4K
>> 399 select CSRC_R4K
>> 400 select SYS_HAS_CPU_MIPS32_R1
>> 401 select SYS_HAS_CPU_MIPS32_R2
>> 402 select SYS_SUPPORTS_BIG_ENDIAN
>> 403 select SYS_SUPPORTS_32BIT_KERNEL
>> 404 select SYS_SUPPORTS_MIPS16
>> 405 select SYS_SUPPORTS_MULTITHREADING
>> 406 select SYS_SUPPORTS_VPE_LOADER
>> 407 select SYS_HAS_EARLY_PRINTK
>> 408 select GPIOLIB
>> 409 select SWAP_IO_SPACE
>> 410 select BOOT_RAW
>> 411 select CLKDEV_LOOKUP
>> 412 select USE_OF
>> 413 select PINCTRL
>> 414 select PINCTRL_LANTIQ
>> 415 select ARCH_HAS_RESET_CONTROLLER
>> 416 select RESET_CONTROLLER
>> 417
>> 418 config LASAT
>> 419 bool "LASAT Networks platforms"
>> 420 select CEVT_R4K
>> 421 select CRC32
>> 422 select CSRC_R4K
>> 423 select DMA_NONCOHERENT
>> 424 select SYS_HAS_EARLY_PRINTK
>> 425 select HW_HAS_PCI
>> 426 select IRQ_MIPS_CPU
>> 427 select PCI_GT64XXX_PCI0
>> 428 select MIPS_NILE4
>> 429 select R5000_CPU_SCACHE
>> 430 select SYS_HAS_CPU_R5000
>> 431 select SYS_SUPPORTS_32BIT_KERNEL
>> 432 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
>> 433 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 434
>> 435 config MACH_LOONGSON32
>> 436 bool "Loongson-1 family of machines"
>> 437 select SYS_SUPPORTS_ZBOOT
>> 438 help
>> 439 This enables support for the Loongson-1 family of machines.
>> 440
>> 441 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
>> 442 the Institute of Computing Technology (ICT), Chinese Academy of
>> 443 Sciences (CAS).
>> 444
>> 445 config MACH_LOONGSON64
>> 446 bool "Loongson-2/3 family of machines"
>> 447 select SYS_SUPPORTS_ZBOOT
>> 448 help
>> 449 This enables the support of Loongson-2/3 family of machines.
>> 450
>> 451 Loongson-2 is a family of single-core CPUs and Loongson-3 is a
>> 452 family of multi-core CPUs. They are both 64-bit general-purpose
>> 453 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
>> 454 of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
>> 455 in the People's Republic of China. The chief architect is Professor
>> 456 Weiwu Hu.
>> 457
>> 458 config MACH_PISTACHIO
>> 459 bool "IMG Pistachio SoC based boards"
>> 460 select BOOT_ELF32
>> 461 select BOOT_RAW
>> 462 select CEVT_R4K
>> 463 select CLKSRC_MIPS_GIC
>> 464 select COMMON_CLK
>> 465 select CSRC_R4K
>> 466 select DMA_NONCOHERENT
>> 467 select GPIOLIB
>> 468 select IRQ_MIPS_CPU
>> 469 select LIBFDT
>> 470 select MFD_SYSCON
>> 471 select MIPS_CPU_SCACHE
>> 472 select MIPS_GIC
>> 473 select PINCTRL
>> 474 select REGULATOR
>> 475 select SYS_HAS_CPU_MIPS32_R2
>> 476 select SYS_SUPPORTS_32BIT_KERNEL
>> 477 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 478 select SYS_SUPPORTS_MIPS_CPS
>> 479 select SYS_SUPPORTS_MULTITHREADING
>> 480 select SYS_SUPPORTS_RELOCATABLE
>> 481 select SYS_SUPPORTS_ZBOOT
>> 482 select SYS_HAS_EARLY_PRINTK
>> 483 select USE_GENERIC_EARLY_PRINTK_8250
>> 484 select USE_OF
>> 485 help
>> 486 This enables support for the IMG Pistachio SoC platform.
>> 487
>> 488 config MIPS_MALTA
>> 489 bool "MIPS Malta board"
>> 490 select ARCH_MAY_HAVE_PC_FDC
>> 491 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 492 select ARCH_MIGHT_HAVE_PC_SERIO
>> 493 select BOOT_ELF32
>> 494 select BOOT_RAW
>> 495 select BUILTIN_DTB
>> 496 select CEVT_R4K
>> 497 select CSRC_R4K
>> 498 select CLKSRC_MIPS_GIC
>> 499 select COMMON_CLK
>> 500 select DMA_MAYBE_COHERENT
>> 501 select GENERIC_ISA_DMA
>> 502 select HAVE_PCSPKR_PLATFORM
>> 503 select IRQ_MIPS_CPU
>> 504 select MIPS_GIC
>> 505 select HW_HAS_PCI
>> 506 select I8253
>> 507 select I8259
>> 508 select MIPS_BONITO64
>> 509 select MIPS_CPU_SCACHE
>> 510 select MIPS_L1_CACHE_SHIFT_6
>> 511 select PCI_GT64XXX_PCI0
>> 512 select MIPS_MSC
>> 513 select SMP_UP if SMP
>> 514 select SWAP_IO_SPACE
>> 515 select SYS_HAS_CPU_MIPS32_R1
>> 516 select SYS_HAS_CPU_MIPS32_R2
>> 517 select SYS_HAS_CPU_MIPS32_R3_5
>> 518 select SYS_HAS_CPU_MIPS32_R5
>> 519 select SYS_HAS_CPU_MIPS32_R6
>> 520 select SYS_HAS_CPU_MIPS64_R1
>> 521 select SYS_HAS_CPU_MIPS64_R2
>> 522 select SYS_HAS_CPU_MIPS64_R6
>> 523 select SYS_HAS_CPU_NEVADA
>> 524 select SYS_HAS_CPU_RM7000
>> 525 select SYS_SUPPORTS_32BIT_KERNEL
>> 526 select SYS_SUPPORTS_64BIT_KERNEL
>> 527 select SYS_SUPPORTS_BIG_ENDIAN
>> 528 select SYS_SUPPORTS_HIGHMEM
>> 529 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 530 select SYS_SUPPORTS_MICROMIPS
>> 531 select SYS_SUPPORTS_MIPS_CMP
>> 532 select SYS_SUPPORTS_MIPS_CPS
>> 533 select SYS_SUPPORTS_MIPS16
>> 534 select SYS_SUPPORTS_MULTITHREADING
>> 535 select SYS_SUPPORTS_SMARTMIPS
>> 536 select SYS_SUPPORTS_VPE_LOADER
>> 537 select SYS_SUPPORTS_ZBOOT
>> 538 select SYS_SUPPORTS_RELOCATABLE
>> 539 select USE_OF
>> 540 select LIBFDT
>> 541 select ZONE_DMA32 if 64BIT
>> 542 select BUILTIN_DTB
>> 543 select LIBFDT
>> 544 help
>> 545 This enables support for the MIPS Technologies Malta evaluation
>> 546 board.
>> 547
>> 548 config MACH_PIC32
>> 549 bool "Microchip PIC32 Family"
>> 550 help
>> 551 This enables support for the Microchip PIC32 family of platforms.
>> 552
>> 553 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
>> 554 microcontrollers.
>> 555
>> 556 config NEC_MARKEINS
>> 557 bool "NEC EMMA2RH Mark-eins board"
>> 558 select SOC_EMMA2RH
>> 559 select HW_HAS_PCI
>> 560 help
>> 561 This enables support for the NEC Electronics Mark-eins boards.
>> 562
>> 563 config MACH_VR41XX
>> 564 bool "NEC VR4100 series based machines"
>> 565 select CEVT_R4K
>> 566 select CSRC_R4K
>> 567 select SYS_HAS_CPU_VR41XX
>> 568 select SYS_SUPPORTS_MIPS16
>> 569 select GPIOLIB
>> 570
>> 571 config NXP_STB220
>> 572 bool "NXP STB220 board"
>> 573 select SOC_PNX833X
>> 574 help
>> 575 Support for NXP Semiconductors STB220 Development Board.
>> 576
>> 577 config NXP_STB225
>> 578 bool "NXP 225 board"
>> 579 select SOC_PNX833X
>> 580 select SOC_PNX8335
>> 581 help
>> 582 Support for NXP Semiconductors STB225 Development Board.
>> 583
>> 584 config PMC_MSP
>> 585 bool "PMC-Sierra MSP chipsets"
>> 586 select CEVT_R4K
>> 587 select CSRC_R4K
>> 588 select DMA_NONCOHERENT
>> 589 select SWAP_IO_SPACE
>> 590 select NO_EXCEPT_FILL
>> 591 select BOOT_RAW
>> 592 select SYS_HAS_CPU_MIPS32_R1
>> 593 select SYS_HAS_CPU_MIPS32_R2
>> 594 select SYS_SUPPORTS_32BIT_KERNEL
>> 595 select SYS_SUPPORTS_BIG_ENDIAN
>> 596 select SYS_SUPPORTS_MIPS16
>> 597 select IRQ_MIPS_CPU
>> 598 select SERIAL_8250
>> 599 select SERIAL_8250_CONSOLE
>> 600 select USB_EHCI_BIG_ENDIAN_MMIO
>> 601 select USB_EHCI_BIG_ENDIAN_DESC
>> 602 help
>> 603 This adds support for the PMC-Sierra family of Multi-Service
>> 604 Processor System-On-A-Chips. These parts include a number
>> 605 of integrated peripherals, interfaces and DSPs in addition to
>> 606 a variety of MIPS cores.
>> 607
>> 608 config RALINK
>> 609 bool "Ralink based machines"
>> 610 select CEVT_R4K
>> 611 select CSRC_R4K
>> 612 select BOOT_RAW
>> 613 select DMA_NONCOHERENT
>> 614 select IRQ_MIPS_CPU
>> 615 select USE_OF
>> 616 select SYS_HAS_CPU_MIPS32_R1
>> 617 select SYS_HAS_CPU_MIPS32_R2
>> 618 select SYS_SUPPORTS_32BIT_KERNEL
>> 619 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 620 select SYS_SUPPORTS_MIPS16
>> 621 select SYS_HAS_EARLY_PRINTK
>> 622 select CLKDEV_LOOKUP
>> 623 select ARCH_HAS_RESET_CONTROLLER
>> 624 select RESET_CONTROLLER
>> 625
>> 626 config SGI_IP22
>> 627 bool "SGI IP22 (Indy/Indigo2)"
>> 628 select FW_ARC
>> 629 select FW_ARC32
>> 630 select ARCH_MIGHT_HAVE_PC_SERIO
>> 631 select BOOT_ELF32
>> 632 select CEVT_R4K
>> 633 select CSRC_R4K
>> 634 select DEFAULT_SGI_PARTITION
>> 635 select DMA_NONCOHERENT
>> 636 select HW_HAS_EISA
>> 637 select I8253
>> 638 select I8259
>> 639 select IP22_CPU_SCACHE
>> 640 select IRQ_MIPS_CPU
>> 641 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 642 select SGI_HAS_I8042
>> 643 select SGI_HAS_INDYDOG
>> 644 select SGI_HAS_HAL2
>> 645 select SGI_HAS_SEEQ
>> 646 select SGI_HAS_WD93
>> 647 select SGI_HAS_ZILOG
>> 648 select SWAP_IO_SPACE
>> 649 select SYS_HAS_CPU_R4X00
>> 650 select SYS_HAS_CPU_R5000
316 # 651 #
317 # Please keep this list sorted alphabe !! 652 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 653 # memory during early boot on some machines.
318 # 654 #
>> 655 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 656 # for a more details discussion
>> 657 #
>> 658 # select SYS_HAS_EARLY_PRINTK
>> 659 select SYS_SUPPORTS_32BIT_KERNEL
>> 660 select SYS_SUPPORTS_64BIT_KERNEL
>> 661 select SYS_SUPPORTS_BIG_ENDIAN
>> 662 select MIPS_L1_CACHE_SHIFT_7
>> 663 help
>> 664 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 665 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 666 that runs on these, say Y here.
319 667
320 config PPC_BARRIER_NOSPEC !! 668 config SGI_IP27
>> 669 bool "SGI IP27 (Origin200/2000)"
>> 670 select ARCH_HAS_PHYS_TO_DMA
>> 671 select FW_ARC
>> 672 select FW_ARC64
>> 673 select BOOT_ELF64
>> 674 select DEFAULT_SGI_PARTITION
>> 675 select SYS_HAS_EARLY_PRINTK
>> 676 select HW_HAS_PCI
>> 677 select NR_CPUS_DEFAULT_64
>> 678 select SYS_HAS_CPU_R10000
>> 679 select SYS_SUPPORTS_64BIT_KERNEL
>> 680 select SYS_SUPPORTS_BIG_ENDIAN
>> 681 select SYS_SUPPORTS_NUMA
>> 682 select SYS_SUPPORTS_SMP
>> 683 select MIPS_L1_CACHE_SHIFT_7
>> 684 help
>> 685 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 686 workstations. To compile a Linux kernel that runs on these, say Y
>> 687 here.
>> 688
>> 689 config SGI_IP28
>> 690 bool "SGI IP28 (Indigo2 R10k)"
>> 691 select FW_ARC
>> 692 select FW_ARC64
>> 693 select ARCH_MIGHT_HAVE_PC_SERIO
>> 694 select BOOT_ELF64
>> 695 select CEVT_R4K
>> 696 select CSRC_R4K
>> 697 select DEFAULT_SGI_PARTITION
>> 698 select DMA_NONCOHERENT
>> 699 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 700 select IRQ_MIPS_CPU
>> 701 select HW_HAS_EISA
>> 702 select I8253
>> 703 select I8259
>> 704 select SGI_HAS_I8042
>> 705 select SGI_HAS_INDYDOG
>> 706 select SGI_HAS_HAL2
>> 707 select SGI_HAS_SEEQ
>> 708 select SGI_HAS_WD93
>> 709 select SGI_HAS_ZILOG
>> 710 select SWAP_IO_SPACE
>> 711 select SYS_HAS_CPU_R10000
>> 712 #
>> 713 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 714 # memory during early boot on some machines.
>> 715 #
>> 716 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 717 # for a more details discussion
>> 718 #
>> 719 # select SYS_HAS_EARLY_PRINTK
>> 720 select SYS_SUPPORTS_64BIT_KERNEL
>> 721 select SYS_SUPPORTS_BIG_ENDIAN
>> 722 select MIPS_L1_CACHE_SHIFT_7
>> 723 help
>> 724 This is the SGI Indigo2 with R10000 processor. To compile a Linux
>> 725 kernel that runs on these, say Y here.
>> 726
>> 727 config SGI_IP32
>> 728 bool "SGI IP32 (O2)"
>> 729 select ARCH_HAS_PHYS_TO_DMA
>> 730 select FW_ARC
>> 731 select FW_ARC32
>> 732 select BOOT_ELF32
>> 733 select CEVT_R4K
>> 734 select CSRC_R4K
>> 735 select DMA_NONCOHERENT
>> 736 select HW_HAS_PCI
>> 737 select IRQ_MIPS_CPU
>> 738 select R5000_CPU_SCACHE
>> 739 select RM7000_CPU_SCACHE
>> 740 select SYS_HAS_CPU_R5000
>> 741 select SYS_HAS_CPU_R10000 if BROKEN
>> 742 select SYS_HAS_CPU_RM7000
>> 743 select SYS_HAS_CPU_NEVADA
>> 744 select SYS_SUPPORTS_64BIT_KERNEL
>> 745 select SYS_SUPPORTS_BIG_ENDIAN
>> 746 help
>> 747 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 748
>> 749 config SIBYTE_CRHINE
>> 750 bool "Sibyte BCM91120C-CRhine"
>> 751 select BOOT_ELF32
>> 752 select SIBYTE_BCM1120
>> 753 select SWAP_IO_SPACE
>> 754 select SYS_HAS_CPU_SB1
>> 755 select SYS_SUPPORTS_BIG_ENDIAN
>> 756 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 757
>> 758 config SIBYTE_CARMEL
>> 759 bool "Sibyte BCM91120x-Carmel"
>> 760 select BOOT_ELF32
>> 761 select SIBYTE_BCM1120
>> 762 select SWAP_IO_SPACE
>> 763 select SYS_HAS_CPU_SB1
>> 764 select SYS_SUPPORTS_BIG_ENDIAN
>> 765 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 766
>> 767 config SIBYTE_CRHONE
>> 768 bool "Sibyte BCM91125C-CRhone"
>> 769 select BOOT_ELF32
>> 770 select SIBYTE_BCM1125
>> 771 select SWAP_IO_SPACE
>> 772 select SYS_HAS_CPU_SB1
>> 773 select SYS_SUPPORTS_BIG_ENDIAN
>> 774 select SYS_SUPPORTS_HIGHMEM
>> 775 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 776
>> 777 config SIBYTE_RHONE
>> 778 bool "Sibyte BCM91125E-Rhone"
>> 779 select BOOT_ELF32
>> 780 select SIBYTE_BCM1125H
>> 781 select SWAP_IO_SPACE
>> 782 select SYS_HAS_CPU_SB1
>> 783 select SYS_SUPPORTS_BIG_ENDIAN
>> 784 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 785
>> 786 config SIBYTE_SWARM
>> 787 bool "Sibyte BCM91250A-SWARM"
>> 788 select BOOT_ELF32
>> 789 select HAVE_PATA_PLATFORM
>> 790 select SIBYTE_SB1250
>> 791 select SWAP_IO_SPACE
>> 792 select SYS_HAS_CPU_SB1
>> 793 select SYS_SUPPORTS_BIG_ENDIAN
>> 794 select SYS_SUPPORTS_HIGHMEM
>> 795 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 796 select ZONE_DMA32 if 64BIT
>> 797 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 798
>> 799 config SIBYTE_LITTLESUR
>> 800 bool "Sibyte BCM91250C2-LittleSur"
>> 801 select BOOT_ELF32
>> 802 select HAVE_PATA_PLATFORM
>> 803 select SIBYTE_SB1250
>> 804 select SWAP_IO_SPACE
>> 805 select SYS_HAS_CPU_SB1
>> 806 select SYS_SUPPORTS_BIG_ENDIAN
>> 807 select SYS_SUPPORTS_HIGHMEM
>> 808 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 809
>> 810 config SIBYTE_SENTOSA
>> 811 bool "Sibyte BCM91250E-Sentosa"
>> 812 select BOOT_ELF32
>> 813 select SIBYTE_SB1250
>> 814 select SWAP_IO_SPACE
>> 815 select SYS_HAS_CPU_SB1
>> 816 select SYS_SUPPORTS_BIG_ENDIAN
>> 817 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 818 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 819
>> 820 config SIBYTE_BIGSUR
>> 821 bool "Sibyte BCM91480B-BigSur"
>> 822 select BOOT_ELF32
>> 823 select NR_CPUS_DEFAULT_4
>> 824 select SIBYTE_BCM1x80
>> 825 select SWAP_IO_SPACE
>> 826 select SYS_HAS_CPU_SB1
>> 827 select SYS_SUPPORTS_BIG_ENDIAN
>> 828 select SYS_SUPPORTS_HIGHMEM
>> 829 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 830 select ZONE_DMA32 if 64BIT
>> 831 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 832
>> 833 config SNI_RM
>> 834 bool "SNI RM200/300/400"
>> 835 select FW_ARC if CPU_LITTLE_ENDIAN
>> 836 select FW_ARC32 if CPU_LITTLE_ENDIAN
>> 837 select FW_SNIPROM if CPU_BIG_ENDIAN
>> 838 select ARCH_MAY_HAVE_PC_FDC
>> 839 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 840 select ARCH_MIGHT_HAVE_PC_SERIO
>> 841 select BOOT_ELF32
>> 842 select CEVT_R4K
>> 843 select CSRC_R4K
>> 844 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 845 select DMA_NONCOHERENT
>> 846 select GENERIC_ISA_DMA
>> 847 select HAVE_PCSPKR_PLATFORM
>> 848 select HW_HAS_EISA
>> 849 select HW_HAS_PCI
>> 850 select IRQ_MIPS_CPU
>> 851 select I8253
>> 852 select I8259
>> 853 select ISA
>> 854 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
>> 855 select SYS_HAS_CPU_R4X00
>> 856 select SYS_HAS_CPU_R5000
>> 857 select SYS_HAS_CPU_R10000
>> 858 select R5000_CPU_SCACHE
>> 859 select SYS_HAS_EARLY_PRINTK
>> 860 select SYS_SUPPORTS_32BIT_KERNEL
>> 861 select SYS_SUPPORTS_64BIT_KERNEL
>> 862 select SYS_SUPPORTS_BIG_ENDIAN
>> 863 select SYS_SUPPORTS_HIGHMEM
>> 864 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 865 help
>> 866 The SNI RM200/300/400 are MIPS-based machines manufactured by
>> 867 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 868 Technology and now in turn merged with Fujitsu. Say Y here to
>> 869 support this machine type.
>> 870
>> 871 config MACH_TX39XX
>> 872 bool "Toshiba TX39 series based machines"
>> 873
>> 874 config MACH_TX49XX
>> 875 bool "Toshiba TX49 series based machines"
>> 876
>> 877 config MIKROTIK_RB532
>> 878 bool "Mikrotik RB532 boards"
>> 879 select CEVT_R4K
>> 880 select CSRC_R4K
>> 881 select DMA_NONCOHERENT
>> 882 select HW_HAS_PCI
>> 883 select IRQ_MIPS_CPU
>> 884 select SYS_HAS_CPU_MIPS32_R1
>> 885 select SYS_SUPPORTS_32BIT_KERNEL
>> 886 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 887 select SWAP_IO_SPACE
>> 888 select BOOT_RAW
>> 889 select GPIOLIB
>> 890 select MIPS_L1_CACHE_SHIFT_4
>> 891 help
>> 892 Support the Mikrotik(tm) RouterBoard 532 series,
>> 893 based on the IDT RC32434 SoC.
>> 894
>> 895 config CAVIUM_OCTEON_SOC
>> 896 bool "Cavium Networks Octeon SoC based boards"
>> 897 select CEVT_R4K
>> 898 select ARCH_HAS_PHYS_TO_DMA
>> 899 select HAS_RAPIDIO
>> 900 select PHYS_ADDR_T_64BIT
>> 901 select SYS_SUPPORTS_64BIT_KERNEL
>> 902 select SYS_SUPPORTS_BIG_ENDIAN
>> 903 select EDAC_SUPPORT
>> 904 select EDAC_ATOMIC_SCRUB
>> 905 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 906 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
>> 907 select SYS_HAS_EARLY_PRINTK
>> 908 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 909 select HW_HAS_PCI
>> 910 select ZONE_DMA32
>> 911 select HOLES_IN_ZONE
>> 912 select GPIOLIB
>> 913 select LIBFDT
>> 914 select USE_OF
>> 915 select ARCH_SPARSEMEM_ENABLE
>> 916 select SYS_SUPPORTS_SMP
>> 917 select NR_CPUS_DEFAULT_64
>> 918 select MIPS_NR_CPU_NR_MAP_1024
>> 919 select BUILTIN_DTB
>> 920 select MTD_COMPLEX_MAPPINGS
>> 921 select SWIOTLB
>> 922 select SYS_SUPPORTS_RELOCATABLE
>> 923 help
>> 924 This option supports all of the Octeon reference boards from Cavium
>> 925 Networks. It builds a kernel that dynamically determines the Octeon
>> 926 CPU type and supports all known board reference implementations.
>> 927 Some of the supported boards are:
>> 928 EBT3000
>> 929 EBH3000
>> 930 EBH3100
>> 931 Thunder
>> 932 Kodama
>> 933 Hikari
>> 934 Say Y here for most Octeon reference boards.
>> 935
>> 936 config NLM_XLR_BOARD
>> 937 bool "Netlogic XLR/XLS based systems"
>> 938 select BOOT_ELF32
>> 939 select NLM_COMMON
>> 940 select SYS_HAS_CPU_XLR
>> 941 select SYS_SUPPORTS_SMP
>> 942 select HW_HAS_PCI
>> 943 select SWAP_IO_SPACE
>> 944 select SYS_SUPPORTS_32BIT_KERNEL
>> 945 select SYS_SUPPORTS_64BIT_KERNEL
>> 946 select PHYS_ADDR_T_64BIT
>> 947 select SYS_SUPPORTS_BIG_ENDIAN
>> 948 select SYS_SUPPORTS_HIGHMEM
>> 949 select NR_CPUS_DEFAULT_32
>> 950 select CEVT_R4K
>> 951 select CSRC_R4K
>> 952 select IRQ_MIPS_CPU
>> 953 select ZONE_DMA32 if 64BIT
>> 954 select SYNC_R4K
>> 955 select SYS_HAS_EARLY_PRINTK
>> 956 select SYS_SUPPORTS_ZBOOT
>> 957 select SYS_SUPPORTS_ZBOOT_UART16550
>> 958 help
>> 959 Support for systems based on Netlogic XLR and XLS processors.
>> 960 Say Y here if you have a XLR or XLS based board.
>> 961
>> 962 config NLM_XLP_BOARD
>> 963 bool "Netlogic XLP based systems"
>> 964 select BOOT_ELF32
>> 965 select NLM_COMMON
>> 966 select SYS_HAS_CPU_XLP
>> 967 select SYS_SUPPORTS_SMP
>> 968 select HW_HAS_PCI
>> 969 select SYS_SUPPORTS_32BIT_KERNEL
>> 970 select SYS_SUPPORTS_64BIT_KERNEL
>> 971 select PHYS_ADDR_T_64BIT
>> 972 select GPIOLIB
>> 973 select SYS_SUPPORTS_BIG_ENDIAN
>> 974 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 975 select SYS_SUPPORTS_HIGHMEM
>> 976 select NR_CPUS_DEFAULT_32
>> 977 select CEVT_R4K
>> 978 select CSRC_R4K
>> 979 select IRQ_MIPS_CPU
>> 980 select ZONE_DMA32 if 64BIT
>> 981 select SYNC_R4K
>> 982 select SYS_HAS_EARLY_PRINTK
>> 983 select USE_OF
>> 984 select SYS_SUPPORTS_ZBOOT
>> 985 select SYS_SUPPORTS_ZBOOT_UART16550
>> 986 help
>> 987 This board is based on Netlogic XLP Processor.
>> 988 Say Y here if you have a XLP based board.
>> 989
>> 990 config MIPS_PARAVIRT
>> 991 bool "Para-Virtualized guest system"
>> 992 select CEVT_R4K
>> 993 select CSRC_R4K
>> 994 select SYS_SUPPORTS_64BIT_KERNEL
>> 995 select SYS_SUPPORTS_32BIT_KERNEL
>> 996 select SYS_SUPPORTS_BIG_ENDIAN
>> 997 select SYS_SUPPORTS_SMP
>> 998 select NR_CPUS_DEFAULT_4
>> 999 select SYS_HAS_EARLY_PRINTK
>> 1000 select SYS_HAS_CPU_MIPS32_R2
>> 1001 select SYS_HAS_CPU_MIPS64_R2
>> 1002 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 1003 select HW_HAS_PCI
>> 1004 select SWAP_IO_SPACE
>> 1005 help
>> 1006 This option supports guest running under ????
>> 1007
>> 1008 endchoice
>> 1009
>> 1010 source "arch/mips/alchemy/Kconfig"
>> 1011 source "arch/mips/ath25/Kconfig"
>> 1012 source "arch/mips/ath79/Kconfig"
>> 1013 source "arch/mips/bcm47xx/Kconfig"
>> 1014 source "arch/mips/bcm63xx/Kconfig"
>> 1015 source "arch/mips/bmips/Kconfig"
>> 1016 source "arch/mips/generic/Kconfig"
>> 1017 source "arch/mips/jazz/Kconfig"
>> 1018 source "arch/mips/jz4740/Kconfig"
>> 1019 source "arch/mips/lantiq/Kconfig"
>> 1020 source "arch/mips/lasat/Kconfig"
>> 1021 source "arch/mips/pic32/Kconfig"
>> 1022 source "arch/mips/pistachio/Kconfig"
>> 1023 source "arch/mips/pmcs-msp71xx/Kconfig"
>> 1024 source "arch/mips/ralink/Kconfig"
>> 1025 source "arch/mips/sgi-ip27/Kconfig"
>> 1026 source "arch/mips/sibyte/Kconfig"
>> 1027 source "arch/mips/txx9/Kconfig"
>> 1028 source "arch/mips/vr41xx/Kconfig"
>> 1029 source "arch/mips/cavium-octeon/Kconfig"
>> 1030 source "arch/mips/loongson32/Kconfig"
>> 1031 source "arch/mips/loongson64/Kconfig"
>> 1032 source "arch/mips/netlogic/Kconfig"
>> 1033 source "arch/mips/paravirt/Kconfig"
>> 1034
>> 1035 endmenu
>> 1036
>> 1037 config RWSEM_GENERIC_SPINLOCK
321 bool 1038 bool
322 default y 1039 default y
323 depends on PPC_BOOK3S_64 || PPC_E500 <<
324 1040
325 config PPC_HAS_LBARX_LHARX !! 1041 config RWSEM_XCHGADD_ALGORITHM
326 bool 1042 bool
327 1043
328 config EARLY_PRINTK !! 1044 config GENERIC_HWEIGHT
329 bool 1045 bool
330 default y 1046 default y
331 1047
332 config PANIC_TIMEOUT !! 1048 config GENERIC_CALIBRATE_DELAY
333 int !! 1049 bool
334 default 180 !! 1050 default y
335 <<
336 config COMPAT <<
337 bool "Enable support for 32bit binarie <<
338 depends on PPC64 <<
339 default y if !CPU_LITTLE_ENDIAN <<
340 select ARCH_WANT_OLD_COMPAT_IPC <<
341 select COMPAT_OLD_SIGACTION <<
342 1051
343 config SCHED_OMIT_FRAME_POINTER 1052 config SCHED_OMIT_FRAME_POINTER
344 bool 1053 bool
345 default y 1054 default y
346 1055
>> 1056 #
>> 1057 # Select some configuration options automatically based on user selections.
>> 1058 #
>> 1059 config FW_ARC
>> 1060 bool
>> 1061
347 config ARCH_MAY_HAVE_PC_FDC 1062 config ARCH_MAY_HAVE_PC_FDC
348 bool 1063 bool
349 default PCI <<
350 1064
351 config PPC_UDBG_16550 !! 1065 config BOOT_RAW
352 bool 1066 bool
353 1067
354 config GENERIC_TBSYNC !! 1068 config CEVT_BCM1480
355 bool 1069 bool
356 default y if PPC32 && SMP <<
357 1070
358 config AUDIT_ARCH !! 1071 config CEVT_DS1287
359 bool 1072 bool
360 default y <<
361 1073
362 config GENERIC_BUG !! 1074 config CEVT_GT641XX
>> 1075 bool
>> 1076
>> 1077 config CEVT_R4K
>> 1078 bool
>> 1079
>> 1080 config CEVT_SB1250
>> 1081 bool
>> 1082
>> 1083 config CEVT_TXX9
>> 1084 bool
>> 1085
>> 1086 config CSRC_BCM1480
>> 1087 bool
>> 1088
>> 1089 config CSRC_IOASIC
>> 1090 bool
>> 1091
>> 1092 config CSRC_R4K
>> 1093 bool
>> 1094
>> 1095 config CSRC_SB1250
>> 1096 bool
>> 1097
>> 1098 config MIPS_CLOCK_VSYSCALL
>> 1099 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
>> 1100
>> 1101 config GPIO_TXX9
>> 1102 select GPIOLIB
>> 1103 bool
>> 1104
>> 1105 config FW_CFE
>> 1106 bool
>> 1107
>> 1108 config ARCH_SUPPORTS_UPROBES
>> 1109 bool
>> 1110
>> 1111 config DMA_MAYBE_COHERENT
>> 1112 select ARCH_HAS_DMA_COHERENCE_H
>> 1113 select DMA_NONCOHERENT
363 bool 1114 bool
364 default y <<
365 depends on BUG <<
366 1115
367 config GENERIC_BUG_RELATIVE_POINTERS !! 1116 config DMA_PERDEV_COHERENT
>> 1117 bool
>> 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_SYNC_DMA_FOR_CPU
>> 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
>> 1180 def_bool y
>> 1181 depends on BPF_JIT && HAVE_CBPF_JIT
>> 1182
>> 1183 config MIPS_EBPF_JIT
368 def_bool y 1184 def_bool y
369 depends on GENERIC_BUG !! 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 NO_EXCEPT_FILL
>> 1251 bool
>> 1252
>> 1253 config SOC_EMMA2RH
>> 1254 bool
>> 1255 select CEVT_R4K
>> 1256 select CSRC_R4K
>> 1257 select DMA_NONCOHERENT
>> 1258 select IRQ_MIPS_CPU
>> 1259 select SWAP_IO_SPACE
>> 1260 select SYS_HAS_CPU_R5500
>> 1261 select SYS_SUPPORTS_32BIT_KERNEL
>> 1262 select SYS_SUPPORTS_64BIT_KERNEL
>> 1263 select SYS_SUPPORTS_BIG_ENDIAN
402 1264
403 config PPC_DCR_NATIVE !! 1265 config SOC_PNX833X
404 bool 1266 bool
>> 1267 select CEVT_R4K
>> 1268 select CSRC_R4K
>> 1269 select IRQ_MIPS_CPU
>> 1270 select DMA_NONCOHERENT
>> 1271 select SYS_HAS_CPU_MIPS32_R2
>> 1272 select SYS_SUPPORTS_32BIT_KERNEL
>> 1273 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 1274 select SYS_SUPPORTS_BIG_ENDIAN
>> 1275 select SYS_SUPPORTS_MIPS16
>> 1276 select CPU_MIPSR2_IRQ_VI
405 1277
406 config PPC_DCR_MMIO !! 1278 config SOC_PNX8335
407 bool 1279 bool
>> 1280 select SOC_PNX833X
408 1281
409 config PPC_DCR !! 1282 config MIPS_SPRAM
410 bool 1283 bool
411 depends on PPC_DCR_NATIVE || PPC_DCR_M !! 1284
>> 1285 config SWAP_IO_SPACE
>> 1286 bool
>> 1287
>> 1288 config SGI_HAS_INDYDOG
>> 1289 bool
>> 1290
>> 1291 config SGI_HAS_HAL2
>> 1292 bool
>> 1293
>> 1294 config SGI_HAS_SEEQ
>> 1295 bool
>> 1296
>> 1297 config SGI_HAS_WD93
>> 1298 bool
>> 1299
>> 1300 config SGI_HAS_ZILOG
>> 1301 bool
>> 1302
>> 1303 config SGI_HAS_I8042
>> 1304 bool
>> 1305
>> 1306 config DEFAULT_SGI_PARTITION
>> 1307 bool
>> 1308
>> 1309 config FW_ARC32
>> 1310 bool
>> 1311
>> 1312 config FW_SNIPROM
>> 1313 bool
>> 1314
>> 1315 config BOOT_ELF32
>> 1316 bool
>> 1317
>> 1318 config MIPS_L1_CACHE_SHIFT_4
>> 1319 bool
>> 1320
>> 1321 config MIPS_L1_CACHE_SHIFT_5
>> 1322 bool
>> 1323
>> 1324 config MIPS_L1_CACHE_SHIFT_6
>> 1325 bool
>> 1326
>> 1327 config MIPS_L1_CACHE_SHIFT_7
>> 1328 bool
>> 1329
>> 1330 config MIPS_L1_CACHE_SHIFT
>> 1331 int
>> 1332 default "7" if MIPS_L1_CACHE_SHIFT_7
>> 1333 default "6" if MIPS_L1_CACHE_SHIFT_6
>> 1334 default "5" if MIPS_L1_CACHE_SHIFT_5
>> 1335 default "4" if MIPS_L1_CACHE_SHIFT_4
>> 1336 default "5"
>> 1337
>> 1338 config HAVE_STD_PC_SERIAL_PORT
>> 1339 bool
>> 1340
>> 1341 config ARC_CONSOLE
>> 1342 bool "ARC console support"
>> 1343 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
>> 1344
>> 1345 config ARC_MEMORY
>> 1346 bool
>> 1347 depends on MACH_JAZZ || SNI_RM || SGI_IP32
412 default y 1348 default y
413 1349
414 config PPC_PCI_OF_BUS_MAP !! 1350 config ARC_PROMLIB
415 bool "Use pci_to_OF_bus_map (deprecate !! 1351 bool
416 depends on PPC32 !! 1352 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
417 depends on PPC_PMAC || PPC_CHRP !! 1353 default y
>> 1354
>> 1355 config FW_ARC64
>> 1356 bool
>> 1357
>> 1358 config BOOT_ELF64
>> 1359 bool
>> 1360
>> 1361 menu "CPU selection"
>> 1362
>> 1363 choice
>> 1364 prompt "CPU type"
>> 1365 default CPU_R4X00
>> 1366
>> 1367 config CPU_LOONGSON3
>> 1368 bool "Loongson 3 CPU"
>> 1369 depends on SYS_HAS_CPU_LOONGSON3
>> 1370 select ARCH_HAS_PHYS_TO_DMA
>> 1371 select CPU_SUPPORTS_64BIT_KERNEL
>> 1372 select CPU_SUPPORTS_HIGHMEM
>> 1373 select CPU_SUPPORTS_HUGEPAGES
>> 1374 select CPU_HAS_LOAD_STORE_LR
>> 1375 select WEAK_ORDERING
>> 1376 select WEAK_REORDERING_BEYOND_LLSC
>> 1377 select MIPS_PGD_C0_CONTEXT
>> 1378 select MIPS_L1_CACHE_SHIFT_6
>> 1379 select GPIOLIB
>> 1380 select SWIOTLB
418 help 1381 help
419 This option uses pci_to_OF_bus_map t !! 1382 The Loongson 3 processor implements the MIPS64R2 instruction
420 restricts the system to only having !! 1383 set with many extensions.
421 the "pci-OF-bus-map" property to be <<
422 1384
423 If unsure, say "N". !! 1385 config LOONGSON3_ENHANCEMENT
>> 1386 bool "New Loongson 3 CPU Enhancements"
>> 1387 default n
>> 1388 select CPU_MIPSR2
>> 1389 select CPU_HAS_PREFETCH
>> 1390 depends on CPU_LOONGSON3
>> 1391 help
>> 1392 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
>> 1393 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
>> 1394 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
>> 1395 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
>> 1396 Fast TLB refill support, etc.
>> 1397
>> 1398 This option enable those enhancements which are not probed at run
>> 1399 time. If you want a generic kernel to run on all Loongson 3 machines,
>> 1400 please say 'N' here. If you want a high-performance kernel to run on
>> 1401 new Loongson 3 machines only, please say 'Y' here.
>> 1402
>> 1403 config CPU_LOONGSON2E
>> 1404 bool "Loongson 2E"
>> 1405 depends on SYS_HAS_CPU_LOONGSON2E
>> 1406 select CPU_LOONGSON2
>> 1407 help
>> 1408 The Loongson 2E processor implements the MIPS III instruction set
>> 1409 with many extensions.
>> 1410
>> 1411 It has an internal FPGA northbridge, which is compatible to
>> 1412 bonito64.
>> 1413
>> 1414 config CPU_LOONGSON2F
>> 1415 bool "Loongson 2F"
>> 1416 depends on SYS_HAS_CPU_LOONGSON2F
>> 1417 select CPU_LOONGSON2
>> 1418 select GPIOLIB
>> 1419 help
>> 1420 The Loongson 2F processor implements the MIPS III instruction set
>> 1421 with many extensions.
>> 1422
>> 1423 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
>> 1424 have a similar programming interface with FPGA northbridge used in
>> 1425 Loongson2E.
>> 1426
>> 1427 config CPU_LOONGSON1B
>> 1428 bool "Loongson 1B"
>> 1429 depends on SYS_HAS_CPU_LOONGSON1B
>> 1430 select CPU_LOONGSON1
>> 1431 select LEDS_GPIO_REGISTER
>> 1432 help
>> 1433 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
>> 1434 Release 1 instruction set and part of the MIPS32 Release 2
>> 1435 instruction set.
>> 1436
>> 1437 config CPU_LOONGSON1C
>> 1438 bool "Loongson 1C"
>> 1439 depends on SYS_HAS_CPU_LOONGSON1C
>> 1440 select CPU_LOONGSON1
>> 1441 select LEDS_GPIO_REGISTER
>> 1442 help
>> 1443 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
>> 1444 Release 1 instruction set and part of the MIPS32 Release 2
>> 1445 instruction set.
>> 1446
>> 1447 config CPU_MIPS32_R1
>> 1448 bool "MIPS32 Release 1"
>> 1449 depends on SYS_HAS_CPU_MIPS32_R1
>> 1450 select CPU_HAS_PREFETCH
>> 1451 select CPU_HAS_LOAD_STORE_LR
>> 1452 select CPU_SUPPORTS_32BIT_KERNEL
>> 1453 select CPU_SUPPORTS_HIGHMEM
>> 1454 help
>> 1455 Choose this option to build a kernel for release 1 or later of the
>> 1456 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1457 MIPS processor are based on a MIPS32 processor. If you know the
>> 1458 specific type of processor in your system, choose those that one
>> 1459 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1460 Release 2 of the MIPS32 architecture is available since several
>> 1461 years so chances are you even have a MIPS32 Release 2 processor
>> 1462 in which case you should choose CPU_MIPS32_R2 instead for better
>> 1463 performance.
424 1464
425 config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT !! 1465 config CPU_MIPS32_R2
426 depends on PPC32 !! 1466 bool "MIPS32 Release 2"
427 depends on !PPC_PCI_OF_BUS_MAP !! 1467 depends on SYS_HAS_CPU_MIPS32_R2
428 bool "Assign PCI bus numbers from zero !! 1468 select CPU_HAS_PREFETCH
>> 1469 select CPU_HAS_LOAD_STORE_LR
>> 1470 select CPU_SUPPORTS_32BIT_KERNEL
>> 1471 select CPU_SUPPORTS_HIGHMEM
>> 1472 select CPU_SUPPORTS_MSA
>> 1473 select HAVE_KVM
>> 1474 help
>> 1475 Choose this option to build a kernel for release 2 or later of the
>> 1476 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1477 MIPS processor are based on a MIPS32 processor. If you know the
>> 1478 specific type of processor in your system, choose those that one
>> 1479 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1480
>> 1481 config CPU_MIPS32_R6
>> 1482 bool "MIPS32 Release 6"
>> 1483 depends on SYS_HAS_CPU_MIPS32_R6
>> 1484 select CPU_HAS_PREFETCH
>> 1485 select CPU_SUPPORTS_32BIT_KERNEL
>> 1486 select CPU_SUPPORTS_HIGHMEM
>> 1487 select CPU_SUPPORTS_MSA
>> 1488 select HAVE_KVM
>> 1489 select MIPS_O32_FP64_SUPPORT
>> 1490 help
>> 1491 Choose this option to build a kernel for release 6 or later of the
>> 1492 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1493 family, are based on a MIPS32r6 processor. If you own an older
>> 1494 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1495
>> 1496 config CPU_MIPS64_R1
>> 1497 bool "MIPS64 Release 1"
>> 1498 depends on SYS_HAS_CPU_MIPS64_R1
>> 1499 select CPU_HAS_PREFETCH
>> 1500 select CPU_HAS_LOAD_STORE_LR
>> 1501 select CPU_SUPPORTS_32BIT_KERNEL
>> 1502 select CPU_SUPPORTS_64BIT_KERNEL
>> 1503 select CPU_SUPPORTS_HIGHMEM
>> 1504 select CPU_SUPPORTS_HUGEPAGES
>> 1505 help
>> 1506 Choose this option to build a kernel for release 1 or later of the
>> 1507 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1508 MIPS processor are based on a MIPS64 processor. If you know the
>> 1509 specific type of processor in your system, choose those that one
>> 1510 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1511 Release 2 of the MIPS64 architecture is available since several
>> 1512 years so chances are you even have a MIPS64 Release 2 processor
>> 1513 in which case you should choose CPU_MIPS64_R2 instead for better
>> 1514 performance.
>> 1515
>> 1516 config CPU_MIPS64_R2
>> 1517 bool "MIPS64 Release 2"
>> 1518 depends on SYS_HAS_CPU_MIPS64_R2
>> 1519 select CPU_HAS_PREFETCH
>> 1520 select CPU_HAS_LOAD_STORE_LR
>> 1521 select CPU_SUPPORTS_32BIT_KERNEL
>> 1522 select CPU_SUPPORTS_64BIT_KERNEL
>> 1523 select CPU_SUPPORTS_HIGHMEM
>> 1524 select CPU_SUPPORTS_HUGEPAGES
>> 1525 select CPU_SUPPORTS_MSA
>> 1526 select HAVE_KVM
>> 1527 help
>> 1528 Choose this option to build a kernel for release 2 or later of the
>> 1529 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1530 MIPS processor are based on a MIPS64 processor. If you know the
>> 1531 specific type of processor in your system, choose those that one
>> 1532 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1533
>> 1534 config CPU_MIPS64_R6
>> 1535 bool "MIPS64 Release 6"
>> 1536 depends on SYS_HAS_CPU_MIPS64_R6
>> 1537 select CPU_HAS_PREFETCH
>> 1538 select CPU_SUPPORTS_32BIT_KERNEL
>> 1539 select CPU_SUPPORTS_64BIT_KERNEL
>> 1540 select CPU_SUPPORTS_HIGHMEM
>> 1541 select CPU_SUPPORTS_MSA
>> 1542 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1543 select HAVE_KVM
>> 1544 help
>> 1545 Choose this option to build a kernel for release 6 or later of the
>> 1546 MIPS64 architecture. New MIPS processors, starting with the Warrior
>> 1547 family, are based on a MIPS64r6 processor. If you own an older
>> 1548 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
>> 1549
>> 1550 config CPU_R3000
>> 1551 bool "R3000"
>> 1552 depends on SYS_HAS_CPU_R3000
>> 1553 select CPU_HAS_WB
>> 1554 select CPU_HAS_LOAD_STORE_LR
>> 1555 select CPU_SUPPORTS_32BIT_KERNEL
>> 1556 select CPU_SUPPORTS_HIGHMEM
>> 1557 help
>> 1558 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 1559 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 1560 *not* work on R4000 machines and vice versa. However, since most
>> 1561 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 1562 might be a safe bet. If the resulting kernel does not work,
>> 1563 try to recompile with R3000.
>> 1564
>> 1565 config CPU_TX39XX
>> 1566 bool "R39XX"
>> 1567 depends on SYS_HAS_CPU_TX39XX
>> 1568 select CPU_SUPPORTS_32BIT_KERNEL
>> 1569 select CPU_HAS_LOAD_STORE_LR
>> 1570
>> 1571 config CPU_VR41XX
>> 1572 bool "R41xx"
>> 1573 depends on SYS_HAS_CPU_VR41XX
>> 1574 select CPU_SUPPORTS_32BIT_KERNEL
>> 1575 select CPU_SUPPORTS_64BIT_KERNEL
>> 1576 select CPU_HAS_LOAD_STORE_LR
>> 1577 help
>> 1578 The options selects support for the NEC VR4100 series of processors.
>> 1579 Only choose this option if you have one of these processors as a
>> 1580 kernel built with this option will not run on any other type of
>> 1581 processor or vice versa.
>> 1582
>> 1583 config CPU_R4300
>> 1584 bool "R4300"
>> 1585 depends on SYS_HAS_CPU_R4300
>> 1586 select CPU_SUPPORTS_32BIT_KERNEL
>> 1587 select CPU_SUPPORTS_64BIT_KERNEL
>> 1588 select CPU_HAS_LOAD_STORE_LR
>> 1589 help
>> 1590 MIPS Technologies R4300-series processors.
>> 1591
>> 1592 config CPU_R4X00
>> 1593 bool "R4x00"
>> 1594 depends on SYS_HAS_CPU_R4X00
>> 1595 select CPU_SUPPORTS_32BIT_KERNEL
>> 1596 select CPU_SUPPORTS_64BIT_KERNEL
>> 1597 select CPU_SUPPORTS_HUGEPAGES
>> 1598 select CPU_HAS_LOAD_STORE_LR
>> 1599 help
>> 1600 MIPS Technologies R4000-series processors other than 4300, including
>> 1601 the R4000, R4400, R4600, and 4700.
>> 1602
>> 1603 config CPU_TX49XX
>> 1604 bool "R49XX"
>> 1605 depends on SYS_HAS_CPU_TX49XX
>> 1606 select CPU_HAS_PREFETCH
>> 1607 select CPU_HAS_LOAD_STORE_LR
>> 1608 select CPU_SUPPORTS_32BIT_KERNEL
>> 1609 select CPU_SUPPORTS_64BIT_KERNEL
>> 1610 select CPU_SUPPORTS_HUGEPAGES
>> 1611
>> 1612 config CPU_R5000
>> 1613 bool "R5000"
>> 1614 depends on SYS_HAS_CPU_R5000
>> 1615 select CPU_SUPPORTS_32BIT_KERNEL
>> 1616 select CPU_SUPPORTS_64BIT_KERNEL
>> 1617 select CPU_SUPPORTS_HUGEPAGES
>> 1618 select CPU_HAS_LOAD_STORE_LR
>> 1619 help
>> 1620 MIPS Technologies R5000-series processors other than the Nevada.
>> 1621
>> 1622 config CPU_R5432
>> 1623 bool "R5432"
>> 1624 depends on SYS_HAS_CPU_R5432
>> 1625 select CPU_SUPPORTS_32BIT_KERNEL
>> 1626 select CPU_SUPPORTS_64BIT_KERNEL
>> 1627 select CPU_SUPPORTS_HUGEPAGES
>> 1628 select CPU_HAS_LOAD_STORE_LR
>> 1629
>> 1630 config CPU_R5500
>> 1631 bool "R5500"
>> 1632 depends on SYS_HAS_CPU_R5500
>> 1633 select CPU_SUPPORTS_32BIT_KERNEL
>> 1634 select CPU_SUPPORTS_64BIT_KERNEL
>> 1635 select CPU_SUPPORTS_HUGEPAGES
>> 1636 select CPU_HAS_LOAD_STORE_LR
>> 1637 help
>> 1638 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
>> 1639 instruction set.
>> 1640
>> 1641 config CPU_NEVADA
>> 1642 bool "RM52xx"
>> 1643 depends on SYS_HAS_CPU_NEVADA
>> 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 help
>> 1649 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
>> 1650
>> 1651 config CPU_R8000
>> 1652 bool "R8000"
>> 1653 depends on SYS_HAS_CPU_R8000
>> 1654 select CPU_HAS_PREFETCH
>> 1655 select CPU_HAS_LOAD_STORE_LR
>> 1656 select CPU_SUPPORTS_64BIT_KERNEL
>> 1657 help
>> 1658 MIPS Technologies R8000 processors. Note these processors are
>> 1659 uncommon and the support for them is incomplete.
>> 1660
>> 1661 config CPU_R10000
>> 1662 bool "R10000"
>> 1663 depends on SYS_HAS_CPU_R10000
>> 1664 select CPU_HAS_PREFETCH
>> 1665 select CPU_HAS_LOAD_STORE_LR
>> 1666 select CPU_SUPPORTS_32BIT_KERNEL
>> 1667 select CPU_SUPPORTS_64BIT_KERNEL
>> 1668 select CPU_SUPPORTS_HIGHMEM
>> 1669 select CPU_SUPPORTS_HUGEPAGES
>> 1670 help
>> 1671 MIPS Technologies R10000-series processors.
>> 1672
>> 1673 config CPU_RM7000
>> 1674 bool "RM7000"
>> 1675 depends on SYS_HAS_CPU_RM7000
>> 1676 select CPU_HAS_PREFETCH
>> 1677 select CPU_HAS_LOAD_STORE_LR
>> 1678 select CPU_SUPPORTS_32BIT_KERNEL
>> 1679 select CPU_SUPPORTS_64BIT_KERNEL
>> 1680 select CPU_SUPPORTS_HIGHMEM
>> 1681 select CPU_SUPPORTS_HUGEPAGES
>> 1682
>> 1683 config CPU_SB1
>> 1684 bool "SB1"
>> 1685 depends on SYS_HAS_CPU_SB1
>> 1686 select CPU_HAS_LOAD_STORE_LR
>> 1687 select CPU_SUPPORTS_32BIT_KERNEL
>> 1688 select CPU_SUPPORTS_64BIT_KERNEL
>> 1689 select CPU_SUPPORTS_HIGHMEM
>> 1690 select CPU_SUPPORTS_HUGEPAGES
>> 1691 select WEAK_ORDERING
>> 1692
>> 1693 config CPU_CAVIUM_OCTEON
>> 1694 bool "Cavium Octeon processor"
>> 1695 depends on SYS_HAS_CPU_CAVIUM_OCTEON
>> 1696 select CPU_HAS_PREFETCH
>> 1697 select CPU_HAS_LOAD_STORE_LR
>> 1698 select CPU_SUPPORTS_64BIT_KERNEL
>> 1699 select WEAK_ORDERING
>> 1700 select CPU_SUPPORTS_HIGHMEM
>> 1701 select CPU_SUPPORTS_HUGEPAGES
>> 1702 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1703 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1704 select MIPS_L1_CACHE_SHIFT_7
>> 1705 select HAVE_KVM
>> 1706 help
>> 1707 The Cavium Octeon processor is a highly integrated chip containing
>> 1708 many ethernet hardware widgets for networking tasks. The processor
>> 1709 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
>> 1710 Full details can be found at http://www.caviumnetworks.com.
>> 1711
>> 1712 config CPU_BMIPS
>> 1713 bool "Broadcom BMIPS"
>> 1714 depends on SYS_HAS_CPU_BMIPS
>> 1715 select CPU_MIPS32
>> 1716 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
>> 1717 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
>> 1718 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
>> 1719 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
>> 1720 select CPU_SUPPORTS_32BIT_KERNEL
>> 1721 select DMA_NONCOHERENT
>> 1722 select IRQ_MIPS_CPU
>> 1723 select SWAP_IO_SPACE
>> 1724 select WEAK_ORDERING
>> 1725 select CPU_SUPPORTS_HIGHMEM
>> 1726 select CPU_HAS_PREFETCH
>> 1727 select CPU_HAS_LOAD_STORE_LR
>> 1728 select CPU_SUPPORTS_CPUFREQ
>> 1729 select MIPS_EXTERNAL_TIMER
>> 1730 help
>> 1731 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
>> 1732
>> 1733 config CPU_XLR
>> 1734 bool "Netlogic XLR SoC"
>> 1735 depends on SYS_HAS_CPU_XLR
>> 1736 select CPU_HAS_LOAD_STORE_LR
>> 1737 select CPU_SUPPORTS_32BIT_KERNEL
>> 1738 select CPU_SUPPORTS_64BIT_KERNEL
>> 1739 select CPU_SUPPORTS_HIGHMEM
>> 1740 select CPU_SUPPORTS_HUGEPAGES
>> 1741 select WEAK_ORDERING
>> 1742 select WEAK_REORDERING_BEYOND_LLSC
>> 1743 help
>> 1744 Netlogic Microsystems XLR/XLS processors.
>> 1745
>> 1746 config CPU_XLP
>> 1747 bool "Netlogic XLP SoC"
>> 1748 depends on SYS_HAS_CPU_XLP
>> 1749 select CPU_SUPPORTS_32BIT_KERNEL
>> 1750 select CPU_SUPPORTS_64BIT_KERNEL
>> 1751 select CPU_SUPPORTS_HIGHMEM
>> 1752 select WEAK_ORDERING
>> 1753 select WEAK_REORDERING_BEYOND_LLSC
>> 1754 select CPU_HAS_PREFETCH
>> 1755 select CPU_HAS_LOAD_STORE_LR
>> 1756 select CPU_MIPSR2
>> 1757 select CPU_SUPPORTS_HUGEPAGES
>> 1758 select MIPS_ASID_BITS_VARIABLE
>> 1759 help
>> 1760 Netlogic Microsystems XLP processors.
>> 1761 endchoice
>> 1762
>> 1763 config CPU_MIPS32_3_5_FEATURES
>> 1764 bool "MIPS32 Release 3.5 Features"
>> 1765 depends on SYS_HAS_CPU_MIPS32_R3_5
>> 1766 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
>> 1767 help
>> 1768 Choose this option to build a kernel for release 2 or later of the
>> 1769 MIPS32 architecture including features from the 3.5 release such as
>> 1770 support for Enhanced Virtual Addressing (EVA).
>> 1771
>> 1772 config CPU_MIPS32_3_5_EVA
>> 1773 bool "Enhanced Virtual Addressing (EVA)"
>> 1774 depends on CPU_MIPS32_3_5_FEATURES
>> 1775 select EVA
>> 1776 default y
>> 1777 help
>> 1778 Choose this option if you want to enable the Enhanced Virtual
>> 1779 Addressing (EVA) on your MIPS32 core (such as proAptiv).
>> 1780 One of its primary benefits is an increase in the maximum size
>> 1781 of lowmem (up to 3GB). If unsure, say 'N' here.
>> 1782
>> 1783 config CPU_MIPS32_R5_FEATURES
>> 1784 bool "MIPS32 Release 5 Features"
>> 1785 depends on SYS_HAS_CPU_MIPS32_R5
>> 1786 depends on CPU_MIPS32_R2
>> 1787 help
>> 1788 Choose this option to build a kernel for release 2 or later of the
>> 1789 MIPS32 architecture including features from release 5 such as
>> 1790 support for Extended Physical Addressing (XPA).
>> 1791
>> 1792 config CPU_MIPS32_R5_XPA
>> 1793 bool "Extended Physical Addressing (XPA)"
>> 1794 depends on CPU_MIPS32_R5_FEATURES
>> 1795 depends on !EVA
>> 1796 depends on !PAGE_SIZE_4KB
>> 1797 depends on SYS_SUPPORTS_HIGHMEM
>> 1798 select XPA
>> 1799 select HIGHMEM
>> 1800 select PHYS_ADDR_T_64BIT
>> 1801 default n
>> 1802 help
>> 1803 Choose this option if you want to enable the Extended Physical
>> 1804 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
>> 1805 benefit is to increase physical addressing equal to or greater
>> 1806 than 40 bits. Note that this has the side effect of turning on
>> 1807 64-bit addressing which in turn makes the PTEs 64-bit in size.
>> 1808 If unsure, say 'N' here.
>> 1809
>> 1810 if CPU_LOONGSON2F
>> 1811 config CPU_NOP_WORKAROUNDS
>> 1812 bool
>> 1813
>> 1814 config CPU_JUMP_WORKAROUNDS
>> 1815 bool
>> 1816
>> 1817 config CPU_LOONGSON2F_WORKAROUNDS
>> 1818 bool "Loongson 2F Workarounds"
429 default y 1819 default y
>> 1820 select CPU_NOP_WORKAROUNDS
>> 1821 select CPU_JUMP_WORKAROUNDS
430 help 1822 help
431 By default on PPC32 were PCI bus num !! 1823 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
432 So system could have only 256 PCI bu !! 1824 require workarounds. Without workarounds the system may hang
433 PCI domains. When this option is ena !! 1825 unexpectedly. For more information please refer to the gas
434 PCI domain dependent and each PCI co !! 1826 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
435 256 PCI buses, like it is on other L !! 1827
>> 1828 Loongson 2F03 and later have fixed these issues and no workarounds
>> 1829 are needed. The workarounds have no significant side effect on them
>> 1830 but may decrease the performance of the system so this option should
>> 1831 be disabled unless the kernel is intended to be run on 2F01 or 2F02
>> 1832 systems.
436 1833
437 config PPC_OF_PLATFORM_PCI !! 1834 If unsure, please say Y.
>> 1835 endif # CPU_LOONGSON2F
>> 1836
>> 1837 config SYS_SUPPORTS_ZBOOT
438 bool 1838 bool
439 depends on PCI !! 1839 select HAVE_KERNEL_GZIP
440 depends on PPC64 # not supported on 32 !! 1840 select HAVE_KERNEL_BZIP2
>> 1841 select HAVE_KERNEL_LZ4
>> 1842 select HAVE_KERNEL_LZMA
>> 1843 select HAVE_KERNEL_LZO
>> 1844 select HAVE_KERNEL_XZ
441 1845
442 config ARCH_SUPPORTS_UPROBES !! 1846 config SYS_SUPPORTS_ZBOOT_UART16550
443 def_bool y !! 1847 bool
>> 1848 select SYS_SUPPORTS_ZBOOT
444 1849
445 config PPC_ADV_DEBUG_REGS !! 1850 config SYS_SUPPORTS_ZBOOT_UART_PROM
446 bool 1851 bool
447 depends on BOOKE !! 1852 select SYS_SUPPORTS_ZBOOT
448 default y <<
449 1853
450 config PPC_ADV_DEBUG_IACS !! 1854 config CPU_LOONGSON2
451 int !! 1855 bool
452 depends on PPC_ADV_DEBUG_REGS !! 1856 select CPU_SUPPORTS_32BIT_KERNEL
453 default 4 if 44x !! 1857 select CPU_SUPPORTS_64BIT_KERNEL
454 default 2 !! 1858 select CPU_SUPPORTS_HIGHMEM
>> 1859 select CPU_SUPPORTS_HUGEPAGES
>> 1860 select ARCH_HAS_PHYS_TO_DMA
>> 1861 select CPU_HAS_LOAD_STORE_LR
455 1862
456 config PPC_ADV_DEBUG_DACS !! 1863 config CPU_LOONGSON1
457 int !! 1864 bool
458 depends on PPC_ADV_DEBUG_REGS !! 1865 select CPU_MIPS32
459 default 2 !! 1866 select CPU_MIPSR1
>> 1867 select CPU_HAS_PREFETCH
>> 1868 select CPU_HAS_LOAD_STORE_LR
>> 1869 select CPU_SUPPORTS_32BIT_KERNEL
>> 1870 select CPU_SUPPORTS_HIGHMEM
>> 1871 select CPU_SUPPORTS_CPUFREQ
460 1872
461 config PPC_ADV_DEBUG_DVCS !! 1873 config CPU_BMIPS32_3300
462 int !! 1874 select SMP_UP if SMP
463 depends on PPC_ADV_DEBUG_REGS !! 1875 bool
464 default 2 if 44x <<
465 default 0 <<
466 1876
467 config PPC_ADV_DEBUG_DAC_RANGE !! 1877 config CPU_BMIPS4350
468 bool 1878 bool
469 depends on PPC_ADV_DEBUG_REGS && 44x !! 1879 select SYS_SUPPORTS_SMP
470 default y !! 1880 select SYS_SUPPORTS_HOTPLUG_CPU
471 1881
472 config PPC_DAWR !! 1882 config CPU_BMIPS4380
473 bool 1883 bool
>> 1884 select MIPS_L1_CACHE_SHIFT_6
>> 1885 select SYS_SUPPORTS_SMP
>> 1886 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1887 select CPU_HAS_RIXI
474 1888
475 config PGTABLE_LEVELS !! 1889 config CPU_BMIPS5000
476 int !! 1890 bool
477 default 2 if !PPC64 !! 1891 select MIPS_CPU_SCACHE
478 default 4 !! 1892 select MIPS_L1_CACHE_SHIFT_7
>> 1893 select SYS_SUPPORTS_SMP
>> 1894 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1895 select CPU_HAS_RIXI
479 1896
480 source "arch/powerpc/sysdev/Kconfig" !! 1897 config SYS_HAS_CPU_LOONGSON3
481 source "arch/powerpc/platforms/Kconfig" !! 1898 bool
>> 1899 select CPU_SUPPORTS_CPUFREQ
>> 1900 select CPU_HAS_RIXI
482 1901
483 menu "Kernel options" !! 1902 config SYS_HAS_CPU_LOONGSON2E
>> 1903 bool
484 1904
485 config HIGHMEM !! 1905 config SYS_HAS_CPU_LOONGSON2F
486 bool "High memory support" !! 1906 bool
487 depends on PPC32 !! 1907 select CPU_SUPPORTS_CPUFREQ
488 select KMAP_LOCAL !! 1908 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
489 !! 1909 select CPU_SUPPORTS_UNCACHED_ACCELERATED
490 source "kernel/Kconfig.hz" !! 1910
491 !! 1911 config SYS_HAS_CPU_LOONGSON1B
492 config MATH_EMULATION !! 1912 bool
493 bool "Math emulation" !! 1913
494 depends on 44x || PPC_8xx || PPC_MPC83 !! 1914 config SYS_HAS_CPU_LOONGSON1C
495 select PPC_FPU_REGS !! 1915 bool
496 help !! 1916
497 Some PowerPC chips designed for embe !! 1917 config SYS_HAS_CPU_MIPS32_R1
498 a floating-point unit and therefore !! 1918 bool
499 floating-point instructions in the P !! 1919
500 say Y here, the kernel will include !! 1920 config SYS_HAS_CPU_MIPS32_R2
501 unit, which will allow programs that !! 1921 bool
502 instructions to run. !! 1922
503 !! 1923 config SYS_HAS_CPU_MIPS32_R3_5
504 This is also useful to emulate missi !! 1924 bool
505 such as fsqrt on cores that do have !! 1925
506 them (such as Freescale BookE). !! 1926 config SYS_HAS_CPU_MIPS32_R5
>> 1927 bool
>> 1928
>> 1929 config SYS_HAS_CPU_MIPS32_R6
>> 1930 bool
>> 1931
>> 1932 config SYS_HAS_CPU_MIPS64_R1
>> 1933 bool
>> 1934
>> 1935 config SYS_HAS_CPU_MIPS64_R2
>> 1936 bool
>> 1937
>> 1938 config SYS_HAS_CPU_MIPS64_R6
>> 1939 bool
>> 1940
>> 1941 config SYS_HAS_CPU_R3000
>> 1942 bool
>> 1943
>> 1944 config SYS_HAS_CPU_TX39XX
>> 1945 bool
>> 1946
>> 1947 config SYS_HAS_CPU_VR41XX
>> 1948 bool
>> 1949
>> 1950 config SYS_HAS_CPU_R4300
>> 1951 bool
>> 1952
>> 1953 config SYS_HAS_CPU_R4X00
>> 1954 bool
>> 1955
>> 1956 config SYS_HAS_CPU_TX49XX
>> 1957 bool
>> 1958
>> 1959 config SYS_HAS_CPU_R5000
>> 1960 bool
>> 1961
>> 1962 config SYS_HAS_CPU_R5432
>> 1963 bool
>> 1964
>> 1965 config SYS_HAS_CPU_R5500
>> 1966 bool
>> 1967
>> 1968 config SYS_HAS_CPU_NEVADA
>> 1969 bool
>> 1970
>> 1971 config SYS_HAS_CPU_R8000
>> 1972 bool
>> 1973
>> 1974 config SYS_HAS_CPU_R10000
>> 1975 bool
>> 1976
>> 1977 config SYS_HAS_CPU_RM7000
>> 1978 bool
>> 1979
>> 1980 config SYS_HAS_CPU_SB1
>> 1981 bool
>> 1982
>> 1983 config SYS_HAS_CPU_CAVIUM_OCTEON
>> 1984 bool
>> 1985
>> 1986 config SYS_HAS_CPU_BMIPS
>> 1987 bool
>> 1988
>> 1989 config SYS_HAS_CPU_BMIPS32_3300
>> 1990 bool
>> 1991 select SYS_HAS_CPU_BMIPS
>> 1992
>> 1993 config SYS_HAS_CPU_BMIPS4350
>> 1994 bool
>> 1995 select SYS_HAS_CPU_BMIPS
>> 1996
>> 1997 config SYS_HAS_CPU_BMIPS4380
>> 1998 bool
>> 1999 select SYS_HAS_CPU_BMIPS
>> 2000
>> 2001 config SYS_HAS_CPU_BMIPS5000
>> 2002 bool
>> 2003 select SYS_HAS_CPU_BMIPS
>> 2004
>> 2005 config SYS_HAS_CPU_XLR
>> 2006 bool
>> 2007
>> 2008 config SYS_HAS_CPU_XLP
>> 2009 bool
>> 2010
>> 2011 #
>> 2012 # CPU may reorder R->R, R->W, W->R, W->W
>> 2013 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
>> 2014 #
>> 2015 config WEAK_ORDERING
>> 2016 bool
>> 2017
>> 2018 #
>> 2019 # CPU may reorder reads and writes beyond LL/SC
>> 2020 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
>> 2021 #
>> 2022 config WEAK_REORDERING_BEYOND_LLSC
>> 2023 bool
>> 2024 endmenu
>> 2025
>> 2026 #
>> 2027 # These two indicate any level of the MIPS32 and MIPS64 architecture
>> 2028 #
>> 2029 config CPU_MIPS32
>> 2030 bool
>> 2031 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
>> 2032
>> 2033 config CPU_MIPS64
>> 2034 bool
>> 2035 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
>> 2036
>> 2037 #
>> 2038 # These two indicate the revision of the architecture, either Release 1 or Release 2
>> 2039 #
>> 2040 config CPU_MIPSR1
>> 2041 bool
>> 2042 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
>> 2043
>> 2044 config CPU_MIPSR2
>> 2045 bool
>> 2046 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
>> 2047 select CPU_HAS_RIXI
>> 2048 select MIPS_SPRAM
>> 2049
>> 2050 config CPU_MIPSR6
>> 2051 bool
>> 2052 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
>> 2053 select CPU_HAS_RIXI
>> 2054 select HAVE_ARCH_BITREVERSE
>> 2055 select MIPS_ASID_BITS_VARIABLE
>> 2056 select MIPS_CRC_SUPPORT
>> 2057 select MIPS_SPRAM
>> 2058
>> 2059 config EVA
>> 2060 bool
>> 2061
>> 2062 config XPA
>> 2063 bool
>> 2064
>> 2065 config SYS_SUPPORTS_32BIT_KERNEL
>> 2066 bool
>> 2067 config SYS_SUPPORTS_64BIT_KERNEL
>> 2068 bool
>> 2069 config CPU_SUPPORTS_32BIT_KERNEL
>> 2070 bool
>> 2071 config CPU_SUPPORTS_64BIT_KERNEL
>> 2072 bool
>> 2073 config CPU_SUPPORTS_CPUFREQ
>> 2074 bool
>> 2075 config CPU_SUPPORTS_ADDRWINCFG
>> 2076 bool
>> 2077 config CPU_SUPPORTS_HUGEPAGES
>> 2078 bool
>> 2079 config CPU_SUPPORTS_UNCACHED_ACCELERATED
>> 2080 bool
>> 2081 config MIPS_PGD_C0_CONTEXT
>> 2082 bool
>> 2083 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
>> 2084
>> 2085 #
>> 2086 # Set to y for ptrace access to watch registers.
>> 2087 #
>> 2088 config HARDWARE_WATCHPOINTS
>> 2089 bool
>> 2090 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
>> 2091
>> 2092 menu "Kernel type"
507 2093
508 choice 2094 choice
509 prompt "Math emulation options" !! 2095 prompt "Kernel code model"
510 default MATH_EMULATION_FULL !! 2096 help
511 depends on MATH_EMULATION !! 2097 You should only select this option if you have a workload that
512 !! 2098 actually benefits from 64-bit processing or if your machine has
513 config MATH_EMULATION_FULL !! 2099 large memory. You will only be presented a single option in this
514 bool "Emulate all the floating point i !! 2100 menu if your system does not support both 32-bit and 64-bit kernels.
515 help !! 2101
516 Select this option will enable the k !! 2102 config 32BIT
517 all the floating point instructions. !! 2103 bool "32-bit kernel"
518 a FPU, you should select this. !! 2104 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
>> 2105 select TRAD_SIGNALS
>> 2106 help
>> 2107 Select this option if you want to build a 32-bit kernel.
519 2108
520 config MATH_EMULATION_HW_UNIMPLEMENTED !! 2109 config 64BIT
521 bool "Just emulate the FPU unimplement !! 2110 bool "64-bit kernel"
>> 2111 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
522 help 2112 help
523 Select this if you know there does h !! 2113 Select this option if you want to build a 64-bit kernel.
524 SoC, but some floating point instruc <<
525 2114
526 endchoice 2115 endchoice
527 2116
528 config PPC_TRANSACTIONAL_MEM !! 2117 config KVM_GUEST
529 bool "Transactional Memory support for !! 2118 bool "KVM Guest Kernel"
530 depends on PPC_BOOK3S_64 !! 2119 depends on BROKEN_ON_SMP
531 depends on SMP !! 2120 help
532 select ALTIVEC !! 2121 Select this option if building a guest kernel for KVM (Trap & Emulate)
533 select VSX !! 2122 mode.
>> 2123
>> 2124 config KVM_GUEST_TIMER_FREQ
>> 2125 int "Count/Compare Timer Frequency (MHz)"
>> 2126 depends on KVM_GUEST
>> 2127 default 100
>> 2128 help
>> 2129 Set this to non-zero if building a guest kernel for KVM to skip RTC
>> 2130 emulation when determining guest CPU Frequency. Instead, the guest's
>> 2131 timer frequency is specified directly.
>> 2132
>> 2133 config MIPS_VA_BITS_48
>> 2134 bool "48 bits virtual memory"
>> 2135 depends on 64BIT
>> 2136 help
>> 2137 Support a maximum at least 48 bits of application virtual
>> 2138 memory. Default is 40 bits or less, depending on the CPU.
>> 2139 For page sizes 16k and above, this option results in a small
>> 2140 memory overhead for page tables. For 4k page size, a fourth
>> 2141 level of page tables is added which imposes both a memory
>> 2142 overhead as well as slower TLB fault handling.
>> 2143
>> 2144 If unsure, say N.
>> 2145
>> 2146 choice
>> 2147 prompt "Kernel page size"
>> 2148 default PAGE_SIZE_4KB
>> 2149
>> 2150 config PAGE_SIZE_4KB
>> 2151 bool "4kB"
>> 2152 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
>> 2153 help
>> 2154 This option select the standard 4kB Linux page size. On some
>> 2155 R3000-family processors this is the only available page size. Using
>> 2156 4kB page size will minimize memory consumption and is therefore
>> 2157 recommended for low memory systems.
>> 2158
>> 2159 config PAGE_SIZE_8KB
>> 2160 bool "8kB"
>> 2161 depends on CPU_R8000 || CPU_CAVIUM_OCTEON
>> 2162 depends on !MIPS_VA_BITS_48
>> 2163 help
>> 2164 Using 8kB page size will result in higher performance kernel at
>> 2165 the price of higher memory consumption. This option is available
>> 2166 only on R8000 and cnMIPS processors. Note that you will need a
>> 2167 suitable Linux distribution to support this.
>> 2168
>> 2169 config PAGE_SIZE_16KB
>> 2170 bool "16kB"
>> 2171 depends on !CPU_R3000 && !CPU_TX39XX
>> 2172 help
>> 2173 Using 16kB page size will result in higher performance kernel at
>> 2174 the price of higher memory consumption. This option is available on
>> 2175 all non-R3000 family processors. Note that you will need a suitable
>> 2176 Linux distribution to support this.
>> 2177
>> 2178 config PAGE_SIZE_32KB
>> 2179 bool "32kB"
>> 2180 depends on CPU_CAVIUM_OCTEON
>> 2181 depends on !MIPS_VA_BITS_48
>> 2182 help
>> 2183 Using 32kB page size will result in higher performance kernel at
>> 2184 the price of higher memory consumption. This option is available
>> 2185 only on cnMIPS cores. Note that you will need a suitable Linux
>> 2186 distribution to support this.
>> 2187
>> 2188 config PAGE_SIZE_64KB
>> 2189 bool "64kB"
>> 2190 depends on !CPU_R3000 && !CPU_TX39XX
>> 2191 help
>> 2192 Using 64kB page size will result in higher performance kernel at
>> 2193 the price of higher memory consumption. This option is available on
>> 2194 all non-R3000 family processor. Not that at the time of this
>> 2195 writing this option is still high experimental.
>> 2196
>> 2197 endchoice
>> 2198
>> 2199 config FORCE_MAX_ZONEORDER
>> 2200 int "Maximum zone order"
>> 2201 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2202 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2203 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2204 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2205 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2206 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2207 range 11 64
>> 2208 default "11"
>> 2209 help
>> 2210 The kernel memory allocator divides physically contiguous memory
>> 2211 blocks into "zones", where each zone is a power of two number of
>> 2212 pages. This option selects the largest power of two that the kernel
>> 2213 keeps in the memory allocator. If you need to allocate very large
>> 2214 blocks of physically contiguous memory, then you may need to
>> 2215 increase this value.
>> 2216
>> 2217 This config option is actually maximum order plus one. For example,
>> 2218 a value of 11 means that the largest free memory block is 2^10 pages.
>> 2219
>> 2220 The page size is not necessarily 4KB. Keep this in mind
>> 2221 when choosing a value for this option.
>> 2222
>> 2223 config BOARD_SCACHE
>> 2224 bool
>> 2225
>> 2226 config IP22_CPU_SCACHE
>> 2227 bool
>> 2228 select BOARD_SCACHE
>> 2229
>> 2230 #
>> 2231 # Support for a MIPS32 / MIPS64 style S-caches
>> 2232 #
>> 2233 config MIPS_CPU_SCACHE
>> 2234 bool
>> 2235 select BOARD_SCACHE
>> 2236
>> 2237 config R5000_CPU_SCACHE
>> 2238 bool
>> 2239 select BOARD_SCACHE
>> 2240
>> 2241 config RM7000_CPU_SCACHE
>> 2242 bool
>> 2243 select BOARD_SCACHE
>> 2244
>> 2245 config SIBYTE_DMA_PAGEOPS
>> 2246 bool "Use DMA to clear/copy pages"
>> 2247 depends on CPU_SB1
534 help 2248 help
535 Support user-mode Transactional Memo !! 2249 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 2250 channel. These DMA channels are otherwise unused by the standard
>> 2251 SiByte Linux port. Seems to give a small performance benefit.
>> 2252
>> 2253 config CPU_HAS_PREFETCH
>> 2254 bool
>> 2255
>> 2256 config CPU_GENERIC_DUMP_TLB
>> 2257 bool
>> 2258 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
536 2259
537 config PPC_UV !! 2260 config CPU_R4K_FPU
538 bool "Ultravisor support" !! 2261 bool
539 depends on KVM_BOOK3S_HV_POSSIBLE !! 2262 default y if !(CPU_R3000 || CPU_TX39XX)
540 depends on DEVICE_PRIVATE !! 2263
>> 2264 config CPU_R4K_CACHE_TLB
>> 2265 bool
>> 2266 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
>> 2267
>> 2268 config MIPS_MT_SMP
>> 2269 bool "MIPS MT SMP support (1 TC on each available VPE)"
>> 2270 default y
>> 2271 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
>> 2272 select CPU_MIPSR2_IRQ_VI
>> 2273 select CPU_MIPSR2_IRQ_EI
>> 2274 select SYNC_R4K
>> 2275 select MIPS_MT
>> 2276 select SMP
>> 2277 select SMP_UP
>> 2278 select SYS_SUPPORTS_SMP
>> 2279 select SYS_SUPPORTS_SCHED_SMT
>> 2280 select MIPS_PERF_SHARED_TC_COUNTERS
>> 2281 help
>> 2282 This is a kernel model which is known as SMVP. This is supported
>> 2283 on cores with the MT ASE and uses the available VPEs to implement
>> 2284 virtual processors which supports SMP. This is equivalent to the
>> 2285 Intel Hyperthreading feature. For further information go to
>> 2286 <http://www.imgtec.com/mips/mips-multithreading.asp>.
>> 2287
>> 2288 config MIPS_MT
>> 2289 bool
>> 2290
>> 2291 config SCHED_SMT
>> 2292 bool "SMT (multithreading) scheduler support"
>> 2293 depends on SYS_SUPPORTS_SCHED_SMT
541 default n 2294 default n
542 help 2295 help
543 This option paravirtualizes the kern !! 2296 SMT scheduler support improves the CPU scheduler's decision making
544 supports the Protected Execution Fac !! 2297 when dealing with MIPS MT enabled cores at a cost of slightly
545 the ultravisor firmware runs at a pr !! 2298 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 2299
572 config HOTPLUG_CPU !! 2300 config SYS_SUPPORTS_SCHED_SMT
573 bool "Support for enabling/disabling C !! 2301 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 2302
591 config PPC_QUEUED_SPINLOCKS !! 2303 config SYS_SUPPORTS_MULTITHREADING
592 bool "Queued spinlocks" if EXPERT !! 2304 bool
593 depends on SMP !! 2305
594 default PPC_BOOK3S_64 !! 2306 config MIPS_MT_FPAFF
>> 2307 bool "Dynamic FPU affinity for FP-intensive threads"
>> 2308 default y
>> 2309 depends on MIPS_MT_SMP
>> 2310
>> 2311 config MIPSR2_TO_R6_EMULATOR
>> 2312 bool "MIPS R2-to-R6 emulator"
>> 2313 depends on CPU_MIPSR6
>> 2314 default y
595 help 2315 help
596 Say Y here to use queued spinlocks w !! 2316 Choose this option if you want to run non-R6 MIPS userland code.
597 fairness on large SMP and NUMA syste !! 2317 Even if you say 'Y' here, the emulator will still be disabled by
598 performance. !! 2318 default. You can enable it using the 'mipsr2emu' kernel option.
>> 2319 The only reason this is a build-time option is to save ~14K from the
>> 2320 final kernel image.
599 2321
600 config ARCH_CPU_PROBE_RELEASE !! 2322 config SYS_SUPPORTS_VPE_LOADER
601 def_bool y !! 2323 bool
602 depends on HOTPLUG_CPU !! 2324 depends on SYS_SUPPORTS_MULTITHREADING
>> 2325 help
>> 2326 Indicates that the platform supports the VPE loader, and provides
>> 2327 physical_memsize.
603 2328
604 config PPC64_SUPPORTS_MEMORY_FAILURE !! 2329 config MIPS_VPE_LOADER
605 bool "Add support for memory hwpoison" !! 2330 bool "VPE loader support."
606 depends on PPC_BOOK3S_64 !! 2331 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
607 default "y" if PPC_POWERNV !! 2332 select CPU_MIPSR2_IRQ_VI
608 select ARCH_SUPPORTS_MEMORY_FAILURE !! 2333 select CPU_MIPSR2_IRQ_EI
>> 2334 select MIPS_MT
>> 2335 help
>> 2336 Includes a loader for loading an elf relocatable object
>> 2337 onto another VPE and running it.
609 2338
610 config ARCH_SUPPORTS_KEXEC !! 2339 config MIPS_VPE_LOADER_CMP
611 def_bool PPC_BOOK3S || PPC_E500 || (44 !! 2340 bool
>> 2341 default "y"
>> 2342 depends on MIPS_VPE_LOADER && MIPS_CMP
612 2343
613 config ARCH_SUPPORTS_KEXEC_FILE !! 2344 config MIPS_VPE_LOADER_MT
614 def_bool PPC64 !! 2345 bool
>> 2346 default "y"
>> 2347 depends on MIPS_VPE_LOADER && !MIPS_CMP
615 2348
616 config ARCH_SUPPORTS_KEXEC_PURGATORY !! 2349 config MIPS_VPE_LOADER_TOM
617 def_bool y !! 2350 bool "Load VPE program into memory hidden from linux"
>> 2351 depends on MIPS_VPE_LOADER
>> 2352 default y
>> 2353 help
>> 2354 The loader can use memory that is present but has been hidden from
>> 2355 Linux using the kernel command line option "mem=xxMB". It's up to
>> 2356 you to ensure the amount you put in the option and the space your
>> 2357 program requires is less or equal to the amount physically present.
618 2358
619 config ARCH_SELECTS_KEXEC_FILE !! 2359 config MIPS_VPE_APSP_API
620 def_bool y !! 2360 bool "Enable support for AP/SP API (RTLX)"
621 depends on KEXEC_FILE !! 2361 depends on MIPS_VPE_LOADER
622 select KEXEC_ELF !! 2362
623 select HAVE_IMA_KEXEC if IMA !! 2363 config MIPS_VPE_APSP_API_CMP
624 !! 2364 bool
625 config PPC64_BIG_ENDIAN_ELF_ABI_V2 !! 2365 default "y"
626 # Option is available to BFD, but LLD !! 2366 depends on MIPS_VPE_APSP_API && MIPS_CMP
627 # always true there. !! 2367
628 prompt "Build big-endian kernel using !! 2368 config MIPS_VPE_APSP_API_MT
629 def_bool y !! 2369 bool
630 depends on PPC64 && CPU_BIG_ENDIAN !! 2370 default "y"
631 depends on CC_HAS_ELFV2 !! 2371 depends on MIPS_VPE_APSP_API && !MIPS_CMP
>> 2372
>> 2373 config MIPS_CMP
>> 2374 bool "MIPS CMP framework support (DEPRECATED)"
>> 2375 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
>> 2376 select SMP
>> 2377 select SYNC_R4K
>> 2378 select SYS_SUPPORTS_SMP
>> 2379 select WEAK_ORDERING
>> 2380 default n
632 help 2381 help
633 This builds the kernel image using t !! 2382 Select this if you are using a bootloader which implements the "CMP
634 V2 ABI Specification", which has a r !! 2383 framework" protocol (ie. YAMON) and want your kernel to make use of
635 function calls. This internal kernel !! 2384 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 2385
642 config RELOCATABLE !! 2386 Unless you have a specific need, you should use CONFIG_MIPS_CPS
643 bool "Build a relocatable kernel" !! 2387 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 2388
665 config RANDOMIZE_BASE !! 2389 config MIPS_CPS
666 bool "Randomize the address of the ker !! 2390 bool "MIPS Coherent Processing System support"
667 depends on PPC_85xx && FLATMEM !! 2391 depends on SYS_SUPPORTS_MIPS_CPS
668 depends on RELOCATABLE !! 2392 select MIPS_CM
>> 2393 select MIPS_CPS_PM if HOTPLUG_CPU
>> 2394 select SMP
>> 2395 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
>> 2396 select SYS_SUPPORTS_HOTPLUG_CPU
>> 2397 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
>> 2398 select SYS_SUPPORTS_SMP
>> 2399 select WEAK_ORDERING
669 help 2400 help
670 Randomizes the virtual address at wh !! 2401 Select this if you wish to run an SMP kernel across multiple cores
671 loaded, as a security feature that d !! 2402 within a MIPS Coherent Processing System. When this option is
672 relying on knowledge of the location !! 2403 enabled the kernel will probe for other cores and boot them with
>> 2404 no external assistance. It is safe to enable this when hardware
>> 2405 support is unavailable.
673 2406
674 If unsure, say Y. !! 2407 config MIPS_CPS_PM
>> 2408 depends on MIPS_CPS
>> 2409 bool
675 2410
676 config RELOCATABLE_TEST !! 2411 config MIPS_CM
677 bool "Test relocatable kernel" !! 2412 bool
678 depends on (PPC64 && RELOCATABLE) !! 2413 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 2414
684 config ARCH_SUPPORTS_CRASH_DUMP !! 2415 config MIPS_CPC
685 def_bool PPC64 || PPC_BOOK3S_32 || PPC !! 2416 bool
686 2417
687 config ARCH_SELECTS_CRASH_DUMP !! 2418 config SB1_PASS_2_WORKAROUNDS
688 def_bool y !! 2419 bool
689 depends on CRASH_DUMP !! 2420 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
690 select RELOCATABLE if PPC64 || 44x || !! 2421 default y
691 2422
692 config ARCH_SUPPORTS_CRASH_HOTPLUG !! 2423 config SB1_PASS_2_1_WORKAROUNDS
693 def_bool y !! 2424 bool
694 depends on PPC64 !! 2425 depends on CPU_SB1 && CPU_SB1_PASS_2
>> 2426 default y
695 2427
696 config FA_DUMP <<
697 bool "Firmware-assisted dump" <<
698 depends on CRASH_DUMP && PPC64 && (PPC <<
699 help <<
700 A robust mechanism to get reliable k <<
701 assistance from firmware. This appro <<
702 instead firmware assists in booting <<
703 while preserving memory contents. Fi <<
704 is meant to be a kdump replacement o <<
705 speed not possible without system fi <<
706 <<
707 If unsure, say "y". Only special ker <<
708 need to say "N" here. <<
709 <<
710 config PRESERVE_FA_DUMP <<
711 bool "Preserve Firmware-assisted dump" <<
712 depends on PPC64 && PPC_POWERNV && !FA <<
713 help <<
714 On a kernel with FA_DUMP disabled, t <<
715 crash data from a previously crash'e <<
716 memory preserving kernel boot would <<
717 Petitboot kernel is the typical usec <<
718 <<
719 config OPAL_CORE <<
720 bool "Export OPAL memory as /sys/firmw <<
721 depends on PPC64 && PPC_POWERNV <<
722 help <<
723 This option uses the MPIPL support i <<
724 ELF core of OPAL memory after a cras <<
725 as /sys/firmware/opal/core file whic <<
726 OPAL crashes using GDB. <<
727 2428
728 config IRQ_ALL_CPUS !! 2429 choice
729 bool "Distribute interrupts on all CPU !! 2430 prompt "SmartMIPS or microMIPS ASE support"
730 depends on SMP !! 2431
>> 2432 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
>> 2433 bool "None"
731 help 2434 help
732 This option gives the kernel permiss !! 2435 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 2436
737 config NUMA !! 2437 config CPU_HAS_SMARTMIPS
738 bool "NUMA Memory Allocation and Sched !! 2438 depends on SYS_SUPPORTS_SMARTMIPS
739 depends on PPC64 && SMP !! 2439 bool "SmartMIPS"
740 default y if PPC_PSERIES || PPC_POWERN !! 2440 help
741 select USE_PERCPU_NUMA_NODE_ID !! 2441 SmartMIPS is a extension of the MIPS32 architecture aimed at
742 help !! 2442 increased security at both hardware and software level for
743 Enable NUMA (Non-Uniform Memory Acce !! 2443 smartcards. Enabling this option will allow proper use of the
744 !! 2444 SmartMIPS instructions by Linux applications. However a kernel with
745 The kernel will try to allocate memo !! 2445 this option will not work on a MIPS core without SmartMIPS core. If
746 local memory controller of the CPU a !! 2446 you don't know you probably don't have SmartMIPS and should say N
747 NUMA awareness to the kernel. !! 2447 here.
>> 2448
>> 2449 config CPU_MICROMIPS
>> 2450 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
>> 2451 bool "microMIPS"
>> 2452 help
>> 2453 When this option is enabled the kernel will be built using the
>> 2454 microMIPS ISA
748 2455
749 config NODES_SHIFT !! 2456 endchoice
>> 2457
>> 2458 config CPU_HAS_MSA
>> 2459 bool "Support for the MIPS SIMD Architecture"
>> 2460 depends on CPU_SUPPORTS_MSA
>> 2461 depends on 64BIT || MIPS_O32_FP64_SUPPORT
>> 2462 help
>> 2463 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
>> 2464 and a set of SIMD instructions to operate on them. When this option
>> 2465 is enabled the kernel will support allocating & switching MSA
>> 2466 vector register contexts. If you know that your kernel will only be
>> 2467 running on CPUs which do not support MSA or that your userland will
>> 2468 not be making use of it then you may wish to say N here to reduce
>> 2469 the size & complexity of your kernel.
>> 2470
>> 2471 If unsure, say Y.
>> 2472
>> 2473 config CPU_HAS_WB
>> 2474 bool
>> 2475
>> 2476 config XKS01
>> 2477 bool
>> 2478
>> 2479 config CPU_HAS_RIXI
>> 2480 bool
>> 2481
>> 2482 config CPU_HAS_LOAD_STORE_LR
>> 2483 bool
>> 2484 help
>> 2485 CPU has support for unaligned load and store instructions:
>> 2486 LWL, LWR, SWL, SWR (Load/store word left/right).
>> 2487 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
>> 2488
>> 2489 #
>> 2490 # Vectored interrupt mode is an R2 feature
>> 2491 #
>> 2492 config CPU_MIPSR2_IRQ_VI
>> 2493 bool
>> 2494
>> 2495 #
>> 2496 # Extended interrupt mode is an R2 feature
>> 2497 #
>> 2498 config CPU_MIPSR2_IRQ_EI
>> 2499 bool
>> 2500
>> 2501 config CPU_HAS_SYNC
>> 2502 bool
>> 2503 depends on !CPU_R3000
>> 2504 default y
>> 2505
>> 2506 #
>> 2507 # CPU non-features
>> 2508 #
>> 2509 config CPU_DADDI_WORKAROUNDS
>> 2510 bool
>> 2511
>> 2512 config CPU_R4000_WORKAROUNDS
>> 2513 bool
>> 2514 select CPU_R4400_WORKAROUNDS
>> 2515
>> 2516 config CPU_R4400_WORKAROUNDS
>> 2517 bool
>> 2518
>> 2519 config MIPS_ASID_SHIFT
750 int 2520 int
751 default "8" if PPC64 !! 2521 default 6 if CPU_R3000 || CPU_TX39XX
752 default "4" !! 2522 default 4 if CPU_R8000
753 depends on NUMA !! 2523 default 0
754 2524
755 config HAVE_MEMORYLESS_NODES !! 2525 config MIPS_ASID_BITS
756 def_bool y !! 2526 int
757 depends on NUMA !! 2527 default 0 if MIPS_ASID_BITS_VARIABLE
>> 2528 default 6 if CPU_R3000 || CPU_TX39XX
>> 2529 default 8
>> 2530
>> 2531 config MIPS_ASID_BITS_VARIABLE
>> 2532 bool
>> 2533
>> 2534 config MIPS_CRC_SUPPORT
>> 2535 bool
>> 2536
>> 2537 #
>> 2538 # - Highmem only makes sense for the 32-bit kernel.
>> 2539 # - The current highmem code will only work properly on physically indexed
>> 2540 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 2541 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 2542 # moment we protect the user and offer the highmem option only on machines
>> 2543 # where it's known to be safe. This will not offer highmem on a few systems
>> 2544 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 2545 # indexed CPUs but we're playing safe.
>> 2546 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
>> 2547 # know they might have memory configurations that could make use of highmem
>> 2548 # support.
>> 2549 #
>> 2550 config HIGHMEM
>> 2551 bool "High Memory Support"
>> 2552 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
758 2553
759 config ARCH_SELECT_MEMORY_MODEL !! 2554 config CPU_SUPPORTS_HIGHMEM
760 def_bool y !! 2555 bool
761 depends on PPC64 !! 2556
>> 2557 config SYS_SUPPORTS_HIGHMEM
>> 2558 bool
>> 2559
>> 2560 config SYS_SUPPORTS_SMARTMIPS
>> 2561 bool
>> 2562
>> 2563 config SYS_SUPPORTS_MICROMIPS
>> 2564 bool
>> 2565
>> 2566 config SYS_SUPPORTS_MIPS16
>> 2567 bool
>> 2568 help
>> 2569 This option must be set if a kernel might be executed on a MIPS16-
>> 2570 enabled CPU even if MIPS16 is not actually being used. In other
>> 2571 words, it makes the kernel MIPS16-tolerant.
>> 2572
>> 2573 config CPU_SUPPORTS_MSA
>> 2574 bool
762 2575
763 config ARCH_FLATMEM_ENABLE 2576 config ARCH_FLATMEM_ENABLE
764 def_bool y 2577 def_bool y
765 depends on (PPC64 && !NUMA) || PPC32 !! 2578 depends on !NUMA && !CPU_LOONGSON2
>> 2579
>> 2580 config ARCH_DISCONTIGMEM_ENABLE
>> 2581 bool
>> 2582 default y if SGI_IP27
>> 2583 help
>> 2584 Say Y to support efficient handling of discontiguous physical memory,
>> 2585 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 2586 or have huge holes in the physical address space for other reasons.
>> 2587 See <file:Documentation/vm/numa.rst> for more.
766 2588
767 config ARCH_SPARSEMEM_ENABLE 2589 config ARCH_SPARSEMEM_ENABLE
768 def_bool y !! 2590 bool
769 depends on PPC64 !! 2591 select SPARSEMEM_STATIC
770 select SPARSEMEM_VMEMMAP_ENABLE <<
771 2592
772 config ARCH_SPARSEMEM_DEFAULT !! 2593 config NUMA
773 def_bool y !! 2594 bool "NUMA Support"
774 depends on PPC_BOOK3S_64 !! 2595 depends on SYS_SUPPORTS_NUMA
>> 2596 help
>> 2597 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 2598 Access). This option improves performance on systems with more
>> 2599 than two nodes; on two node systems it is generally better to
>> 2600 leave it disabled; on single node systems disable this option
>> 2601 disabled.
775 2602
776 config ILLEGAL_POINTER_VALUE !! 2603 config SYS_SUPPORTS_NUMA
777 hex !! 2604 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 2605
783 config ARCH_MEMORY_PROBE !! 2606 config RELOCATABLE
784 def_bool y !! 2607 bool "Relocatable kernel"
785 depends on MEMORY_HOTPLUG !! 2608 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
>> 2609 help
>> 2610 This builds a kernel image that retains relocation information
>> 2611 so it can be loaded someplace besides the default 1MB.
>> 2612 The relocations make the kernel binary about 15% larger,
>> 2613 but are discarded at runtime
786 2614
787 choice !! 2615 config RELOCATION_TABLE_SIZE
788 prompt "Page size" !! 2616 hex "Relocation table size"
789 default PPC_64K_PAGES if PPC_BOOK3S_64 !! 2617 depends on RELOCATABLE
790 default PPC_4K_PAGES !! 2618 range 0x0 0x01000000
791 help !! 2619 default "0x00100000"
792 Select the kernel logical page size. !! 2620 ---help---
793 will reduce software overhead at eac !! 2621 A table of relocation data will be appended to the kernel binary
794 hardware prefetch mechanisms to be m !! 2622 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 2623
841 endchoice !! 2624 This option allows the amount of space reserved for the table to be
>> 2625 adjusted, although the default of 1Mb should be ok in most cases.
842 2626
843 config THREAD_SHIFT !! 2627 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 2628
915 Don't change if unsure. !! 2629 If unsure, leave at the default value.
916 2630
917 config PPC_SUBPAGE_PROT !! 2631 config RANDOMIZE_BASE
918 bool "Support setting protections for !! 2632 bool "Randomize the address of the kernel image"
919 default n !! 2633 depends on RELOCATABLE
920 depends on PPC_64S_HASH_MMU && PPC_64K !! 2634 ---help---
>> 2635 Randomizes the physical and virtual address at which the
>> 2636 kernel image is loaded, as a security feature that
>> 2637 deters exploit attempts relying on knowledge of the location
>> 2638 of kernel internals.
>> 2639
>> 2640 Entropy is generated using any coprocessor 0 registers available.
>> 2641
>> 2642 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
>> 2643
>> 2644 If unsure, say N.
>> 2645
>> 2646 config RANDOMIZE_BASE_MAX_OFFSET
>> 2647 hex "Maximum kASLR offset" if EXPERT
>> 2648 depends on RANDOMIZE_BASE
>> 2649 range 0x0 0x40000000 if EVA || 64BIT
>> 2650 range 0x0 0x08000000
>> 2651 default "0x01000000"
>> 2652 ---help---
>> 2653 When kASLR is active, this provides the maximum offset that will
>> 2654 be applied to the kernel image. It should be set according to the
>> 2655 amount of physical RAM available in the target system minus
>> 2656 PHYSICAL_START and must be a power of 2.
>> 2657
>> 2658 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
>> 2659 EVA or 64-bit. The default is 16Mb.
>> 2660
>> 2661 config NODES_SHIFT
>> 2662 int
>> 2663 default "6"
>> 2664 depends on NEED_MULTIPLE_NODES
>> 2665
>> 2666 config HW_PERF_EVENTS
>> 2667 bool "Enable hardware performance counter support for perf events"
>> 2668 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
>> 2669 default y
921 help 2670 help
922 This option adds support for system !! 2671 Enable hardware performance counter support for perf events. If
923 to set access permissions (read/writ !! 2672 disabled, perf events will use software events only.
924 on the 4k subpages of each 64k page. <<
925 2673
926 If unsure, say N here. !! 2674 config SMP
>> 2675 bool "Multi-Processing support"
>> 2676 depends on SYS_SUPPORTS_SMP
>> 2677 help
>> 2678 This enables support for systems with more than one CPU. If you have
>> 2679 a system with only one CPU, say N. If you have a system with more
>> 2680 than one CPU, say Y.
>> 2681
>> 2682 If you say N here, the kernel will run on uni- and multiprocessor
>> 2683 machines, but will use only one CPU of a multiprocessor machine. If
>> 2684 you say Y here, the kernel will run on many, but not all,
>> 2685 uniprocessor machines. On a uniprocessor machine, the kernel
>> 2686 will run faster if you say N here.
>> 2687
>> 2688 People using multiprocessor machines who say Y here should also say
>> 2689 Y to "Enhanced Real Time Clock Support", below.
927 2690
928 config PPC_PROT_SAO_LPAR !! 2691 See also the SMP-HOWTO available at
929 bool "Support PROT_SAO mappings in LPA !! 2692 <http://www.tldp.org/docs.html#howto>.
930 depends on PPC_BOOK3S_64 !! 2693
>> 2694 If you don't know what to do here, say N.
>> 2695
>> 2696 config HOTPLUG_CPU
>> 2697 bool "Support for hot-pluggable CPUs"
>> 2698 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
931 help 2699 help
932 This option adds support for PROT_SA !! 2700 Say Y here to allow turning CPUs off and on. CPUs can be
933 inside LPARs on supported CPUs. !! 2701 controlled through /sys/devices/system/cpu.
>> 2702 (Note: power management support will enable this option
>> 2703 automatically on SMP systems. )
>> 2704 Say N if you want to disable CPU hotplug.
934 2705
935 This may cause issues when performin !! 2706 config SMP_UP
936 a CPU that supports SAO to one that !! 2707 bool
937 2708
938 If unsure, say N here. !! 2709 config SYS_SUPPORTS_MIPS_CMP
>> 2710 bool
939 2711
940 config PPC_COPRO_BASE !! 2712 config SYS_SUPPORTS_MIPS_CPS
941 bool 2713 bool
942 2714
943 config SCHED_SMT !! 2715 config SYS_SUPPORTS_SMP
944 bool "SMT (Hyperthreading) scheduler s !! 2716 bool
945 depends on PPC64 && SMP !! 2717
>> 2718 config NR_CPUS_DEFAULT_4
>> 2719 bool
>> 2720
>> 2721 config NR_CPUS_DEFAULT_8
>> 2722 bool
>> 2723
>> 2724 config NR_CPUS_DEFAULT_16
>> 2725 bool
>> 2726
>> 2727 config NR_CPUS_DEFAULT_32
>> 2728 bool
>> 2729
>> 2730 config NR_CPUS_DEFAULT_64
>> 2731 bool
>> 2732
>> 2733 config NR_CPUS
>> 2734 int "Maximum number of CPUs (2-256)"
>> 2735 range 2 256
>> 2736 depends on SMP
>> 2737 default "4" if NR_CPUS_DEFAULT_4
>> 2738 default "8" if NR_CPUS_DEFAULT_8
>> 2739 default "16" if NR_CPUS_DEFAULT_16
>> 2740 default "32" if NR_CPUS_DEFAULT_32
>> 2741 default "64" if NR_CPUS_DEFAULT_64
946 help 2742 help
947 SMT scheduler support improves the C !! 2743 This allows you to specify the maximum number of CPUs which this
948 when dealing with POWER5 cpus at a c !! 2744 kernel will support. The maximum supported value is 32 for 32-bit
949 overhead in some places. If unsure s !! 2745 kernel and 64 for 64-bit kernels; the minimum value which makes
>> 2746 sense is 1 for Qemu (useful only for kernel debugging purposes)
>> 2747 and 2 for all others.
>> 2748
>> 2749 This is purely to save memory - each supported CPU adds
>> 2750 approximately eight kilobytes to the kernel image. For best
>> 2751 performance should round up your number of processors to the next
>> 2752 power of two.
950 2753
951 config PPC_DENORMALISATION !! 2754 config MIPS_PERF_SHARED_TC_COUNTERS
952 bool "PowerPC denormalisation exceptio !! 2755 bool
953 depends on PPC_BOOK3S_64 !! 2756
954 default "y" if PPC_POWERNV !! 2757 config MIPS_NR_CPU_NR_MAP_1024
955 help !! 2758 bool
956 Add support for handling denormalisa !! 2759
957 values. Useful for bare metal only. !! 2760 config MIPS_NR_CPU_NR_MAP
958 !! 2761 int
959 config CMDLINE !! 2762 depends on SMP
960 string "Initial kernel command string" !! 2763 default 1024 if MIPS_NR_CPU_NR_MAP_1024
961 default "" !! 2764 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
962 help !! 2765
963 On some platforms, there is currentl !! 2766 #
964 pass arguments to the kernel. For th !! 2767 # Timer Interrupt Frequency Configuration
965 some command-line options at build t !! 2768 #
966 most cases you will need to specify <<
967 2769
968 choice 2770 choice
969 prompt "Kernel command line type" !! 2771 prompt "Timer frequency"
970 depends on CMDLINE != "" !! 2772 default HZ_250
971 default CMDLINE_FROM_BOOTLOADER !! 2773 help
972 !! 2774 Allows the configuration of the timer frequency.
973 config CMDLINE_FROM_BOOTLOADER !! 2775
974 bool "Use bootloader kernel arguments !! 2776 config HZ_24
975 help !! 2777 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
976 Uses the command-line options passed !! 2778
977 the boot loader doesn't provide any, !! 2779 config HZ_48
978 string provided in CMDLINE will be u !! 2780 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
979 !! 2781
980 config CMDLINE_EXTEND !! 2782 config HZ_100
981 bool "Extend bootloader kernel argumen !! 2783 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
982 help !! 2784
983 The command-line arguments provided !! 2785 config HZ_128
984 appended to the default kernel comma !! 2786 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
985 !! 2787
986 config CMDLINE_FORCE !! 2788 config HZ_250
987 bool "Always use the default kernel co !! 2789 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
988 help !! 2790
989 Always use the default kernel comman !! 2791 config HZ_256
990 loader passes other arguments to the !! 2792 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
991 This is useful if you cannot or don' !! 2793
992 command-line options your boot loade !! 2794 config HZ_1000
>> 2795 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2796
>> 2797 config HZ_1024
>> 2798 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
993 2799
994 endchoice 2800 endchoice
995 2801
996 config EXTRA_TARGETS !! 2802 config SYS_SUPPORTS_24HZ
997 string "Additional default image types !! 2803 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 2804
1003 Targets in this list will be build !! 2805 config SYS_SUPPORTS_48HZ
1004 target, or when the user does a 'ma !! 2806 bool
1005 'make zImage.initrd'. <<
1006 2807
1007 If unsure, leave blank !! 2808 config SYS_SUPPORTS_100HZ
>> 2809 bool
1008 2810
1009 config ARCH_WANTS_FREEZER_CONTROL !! 2811 config SYS_SUPPORTS_128HZ
1010 def_bool y !! 2812 bool
1011 depends on ADB_PMU <<
1012 2813
1013 source "kernel/power/Kconfig" !! 2814 config SYS_SUPPORTS_250HZ
>> 2815 bool
1014 2816
1015 config PPC_MEM_KEYS !! 2817 config SYS_SUPPORTS_256HZ
1016 prompt "PowerPC Memory Protection Key !! 2818 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 2819
1027 For details, see Documentation/core !! 2820 config SYS_SUPPORTS_1000HZ
>> 2821 bool
1028 2822
1029 If unsure, say y. !! 2823 config SYS_SUPPORTS_1024HZ
>> 2824 bool
1030 2825
1031 config ARCH_PKEY_BITS !! 2826 config SYS_SUPPORTS_ARBIT_HZ
>> 2827 bool
>> 2828 default y if !SYS_SUPPORTS_24HZ && \
>> 2829 !SYS_SUPPORTS_48HZ && \
>> 2830 !SYS_SUPPORTS_100HZ && \
>> 2831 !SYS_SUPPORTS_128HZ && \
>> 2832 !SYS_SUPPORTS_250HZ && \
>> 2833 !SYS_SUPPORTS_256HZ && \
>> 2834 !SYS_SUPPORTS_1000HZ && \
>> 2835 !SYS_SUPPORTS_1024HZ
>> 2836
>> 2837 config HZ
1032 int 2838 int
1033 default 5 !! 2839 default 24 if HZ_24
>> 2840 default 48 if HZ_48
>> 2841 default 100 if HZ_100
>> 2842 default 128 if HZ_128
>> 2843 default 250 if HZ_250
>> 2844 default 256 if HZ_256
>> 2845 default 1000 if HZ_1000
>> 2846 default 1024 if HZ_1024
>> 2847
>> 2848 config SCHED_HRTICK
>> 2849 def_bool HIGH_RES_TIMERS
>> 2850
>> 2851 config KEXEC
>> 2852 bool "Kexec system call"
>> 2853 select KEXEC_CORE
>> 2854 help
>> 2855 kexec is a system call that implements the ability to shutdown your
>> 2856 current kernel, and to start another kernel. It is like a reboot
>> 2857 but it is independent of the system firmware. And like a reboot
>> 2858 you can start any kernel with it, not just Linux.
>> 2859
>> 2860 The name comes from the similarity to the exec system call.
>> 2861
>> 2862 It is an ongoing process to be certain the hardware in a machine
>> 2863 is properly shutdown, so do not be surprised if this code does not
>> 2864 initially work for you. As of this writing the exact hardware
>> 2865 interface is strongly in flux, so no good recommendation can be
>> 2866 made.
>> 2867
>> 2868 config CRASH_DUMP
>> 2869 bool "Kernel crash dumps"
>> 2870 help
>> 2871 Generate crash dump after being started by kexec.
>> 2872 This should be normally only set in special crash dump kernels
>> 2873 which are loaded in the main kernel with kexec-tools into
>> 2874 a specially reserved region and then later executed after
>> 2875 a crash by kdump/kexec. The crash dump kernel must be compiled
>> 2876 to a memory address not used by the main kernel or firmware using
>> 2877 PHYSICAL_START.
>> 2878
>> 2879 config PHYSICAL_START
>> 2880 hex "Physical address where the kernel is loaded"
>> 2881 default "0xffffffff84000000"
>> 2882 depends on CRASH_DUMP
>> 2883 help
>> 2884 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
>> 2885 If you plan to use kernel for capturing the crash dump change
>> 2886 this value to start of the reserved region (the "X" value as
>> 2887 specified in the "crashkernel=YM@XM" command line boot parameter
>> 2888 passed to the panic-ed kernel).
>> 2889
>> 2890 config SECCOMP
>> 2891 bool "Enable seccomp to safely compute untrusted bytecode"
>> 2892 depends on PROC_FS
>> 2893 default y
>> 2894 help
>> 2895 This kernel feature is useful for number crunching applications
>> 2896 that may need to compute untrusted bytecode during their
>> 2897 execution. By using pipes or other transports made available to
>> 2898 the process as file descriptors supporting the read/write
>> 2899 syscalls, it's possible to isolate those applications in
>> 2900 their own address space using seccomp. Once seccomp is
>> 2901 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 2902 and the task is only allowed to execute a few safe syscalls
>> 2903 defined by each seccomp mode.
>> 2904
>> 2905 If unsure, say Y. Only embedded should say N here.
>> 2906
>> 2907 config MIPS_O32_FP64_SUPPORT
>> 2908 bool "Support for O32 binaries using 64-bit FP"
>> 2909 depends on 32BIT || MIPS32_O32
>> 2910 help
>> 2911 When this is enabled, the kernel will support use of 64-bit floating
>> 2912 point registers with binaries using the O32 ABI along with the
>> 2913 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
>> 2914 32-bit MIPS systems this support is at the cost of increasing the
>> 2915 size and complexity of the compiled FPU emulator. Thus if you are
>> 2916 running a MIPS32 system and know that none of your userland binaries
>> 2917 will require 64-bit floating point, you may wish to reduce the size
>> 2918 of your kernel & potentially improve FP emulation performance by
>> 2919 saying N here.
>> 2920
>> 2921 Although binutils currently supports use of this flag the details
>> 2922 concerning its effect upon the O32 ABI in userland are still being
>> 2923 worked on. In order to avoid userland becoming dependant upon current
>> 2924 behaviour before the details have been finalised, this option should
>> 2925 be considered experimental and only enabled by those working upon
>> 2926 said details.
>> 2927
>> 2928 If unsure, say N.
>> 2929
>> 2930 config USE_OF
>> 2931 bool
>> 2932 select OF
>> 2933 select OF_EARLY_FLATTREE
>> 2934 select IRQ_DOMAIN
>> 2935
>> 2936 config UHI_BOOT
>> 2937 bool
1034 2938
1035 config PPC_SECURE_BOOT !! 2939 config BUILTIN_DTB
1036 prompt "Enable secure boot support" <<
1037 bool 2940 bool
1038 depends on PPC_POWERNV || PPC_PSERIES !! 2941
1039 depends on IMA_ARCH_POLICY !! 2942 choice
1040 imply IMA_SECURE_AND_OR_TRUSTED_BOOT !! 2943 prompt "Kernel appended dtb support" if USE_OF
1041 select PSERIES_PLPKS if PPC_PSERIES !! 2944 default MIPS_NO_APPENDED_DTB
1042 help !! 2945
1043 Systems with firmware secure boot e !! 2946 config MIPS_NO_APPENDED_DTB
1044 policies to extend secure boot to t !! 2947 bool "None"
1045 to enable OS secure boot on systems !! 2948 help
1046 it. If in doubt say N. !! 2949 Do not enable appended dtb support.
1047 !! 2950
1048 config PPC_SECVAR_SYSFS !! 2951 config MIPS_ELF_APPENDED_DTB
1049 bool "Enable sysfs interface for POWE !! 2952 bool "vmlinux"
1050 default y !! 2953 help
1051 depends on PPC_SECURE_BOOT !! 2954 With this option, the boot code will look for a device tree binary
1052 depends on SYSFS !! 2955 DTB) included in the vmlinux ELF section .appended_dtb. By default
1053 help !! 2956 it is empty and the DTB can be appended using binutils command
1054 POWER secure variables are managed !! 2957 objcopy:
1055 These variables are exposed to user !! 2958
1056 read/write operations on these vari !! 2959 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
1057 secure boot enabled and want to exp !! 2960
>> 2961 This is meant as a backward compatiblity convenience for those
>> 2962 systems with a bootloader that can't be upgraded to accommodate
>> 2963 the documented boot protocol using a device tree.
>> 2964
>> 2965 config MIPS_RAW_APPENDED_DTB
>> 2966 bool "vmlinux.bin or vmlinuz.bin"
>> 2967 help
>> 2968 With this option, the boot code will look for a device tree binary
>> 2969 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
>> 2970 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
>> 2971
>> 2972 This is meant as a backward compatibility convenience for those
>> 2973 systems with a bootloader that can't be upgraded to accommodate
>> 2974 the documented boot protocol using a device tree.
>> 2975
>> 2976 Beware that there is very little in terms of protection against
>> 2977 this option being confused by leftover garbage in memory that might
>> 2978 look like a DTB header after a reboot if no actual DTB is appended
>> 2979 to vmlinux.bin. Do not leave this option active in a production kernel
>> 2980 if you don't intend to always append a DTB.
>> 2981 endchoice
>> 2982
>> 2983 choice
>> 2984 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
>> 2985 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
>> 2986 !MIPS_MALTA && \
>> 2987 !CAVIUM_OCTEON_SOC
>> 2988 default MIPS_CMDLINE_FROM_BOOTLOADER
>> 2989
>> 2990 config MIPS_CMDLINE_FROM_DTB
>> 2991 depends on USE_OF
>> 2992 bool "Dtb kernel arguments if available"
>> 2993
>> 2994 config MIPS_CMDLINE_DTB_EXTEND
>> 2995 depends on USE_OF
>> 2996 bool "Extend dtb kernel arguments with bootloader arguments"
>> 2997
>> 2998 config MIPS_CMDLINE_FROM_BOOTLOADER
>> 2999 bool "Bootloader kernel arguments if available"
>> 3000
>> 3001 config MIPS_CMDLINE_BUILTIN_EXTEND
>> 3002 depends on CMDLINE_BOOL
>> 3003 bool "Extend builtin kernel arguments with bootloader arguments"
>> 3004 endchoice
1058 3005
1059 endmenu 3006 endmenu
1060 3007
1061 config ISA_DMA_API !! 3008 config LOCKDEP_SUPPORT
1062 bool 3009 bool
1063 default PCI !! 3010 default y
1064 3011
1065 menu "Bus options" !! 3012 config STACKTRACE_SUPPORT
>> 3013 bool
>> 3014 default y
1066 3015
1067 config ISA !! 3016 config HAVE_LATENCYTOP_SUPPORT
1068 bool "Support for ISA-bus hardware" !! 3017 bool
1069 depends on PPC_CHRP !! 3018 default y
1070 select PPC_I8259 <<
1071 help <<
1072 Find out whether you have ISA slots <<
1073 name of a bus system, i.e. the way <<
1074 inside your box. If you have an Ap <<
1075 have an IBM RS/6000 or pSeries mach <<
1076 embedded board, consult your board <<
1077 3019
1078 config GENERIC_ISA_DMA !! 3020 config PGTABLE_LEVELS
>> 3021 int
>> 3022 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
>> 3023 default 3 if 64BIT && !PAGE_SIZE_64KB
>> 3024 default 2
>> 3025
>> 3026 config MIPS_AUTO_PFN_OFFSET
>> 3027 bool
>> 3028
>> 3029 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 3030
>> 3031 config HW_HAS_EISA
1079 bool 3032 bool
1080 depends on ISA_DMA_API !! 3033 config HW_HAS_PCI
>> 3034 bool
>> 3035
>> 3036 config PCI
>> 3037 bool "Support for PCI controller"
>> 3038 depends on HW_HAS_PCI
>> 3039 select PCI_DOMAINS
>> 3040 help
>> 3041 Find out whether you have a PCI motherboard. PCI is the name of a
>> 3042 bus system, i.e. the way the CPU talks to the other stuff inside
>> 3043 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
>> 3044 say Y, otherwise N.
>> 3045
>> 3046 config HT_PCI
>> 3047 bool "Support for HT-linked PCI"
1081 default y 3048 default y
>> 3049 depends on CPU_LOONGSON3
>> 3050 select PCI
>> 3051 select PCI_DOMAINS
>> 3052 help
>> 3053 Loongson family machines use Hyper-Transport bus for inter-core
>> 3054 connection and device connection. The PCI bus is a subordinate
>> 3055 linked at HT. Choose Y for Loongson-3 based machines.
1082 3056
1083 config PPC_INDIRECT_PCI !! 3057 config PCI_DOMAINS
1084 bool 3058 bool
1085 depends on PCI <<
1086 default y if 44x <<
1087 3059
1088 config SBUS !! 3060 config PCI_DOMAINS_GENERIC
1089 bool 3061 bool
1090 3062
1091 config FSL_SOC !! 3063 config PCI_DRIVERS_GENERIC
>> 3064 select PCI_DOMAINS_GENERIC if PCI_DOMAINS
1092 bool 3065 bool
1093 3066
1094 config FSL_PCI !! 3067 config PCI_DRIVERS_LEGACY
>> 3068 def_bool !PCI_DRIVERS_GENERIC
>> 3069 select NO_GENERIC_PCI_IOPORT_MAP
>> 3070
>> 3071 source "drivers/pci/Kconfig"
>> 3072
>> 3073 #
>> 3074 # ISA support is now enabled via select. Too many systems still have the one
>> 3075 # or other ISA chip on the board that users don't know about so don't expect
>> 3076 # users to choose the right thing ...
>> 3077 #
>> 3078 config ISA
1095 bool 3079 bool
1096 select ARCH_HAS_DMA_SET_MASK <<
1097 select PPC_INDIRECT_PCI <<
1098 select PCI_QUIRKS <<
1099 3080
1100 config FSL_PMC !! 3081 config EISA
>> 3082 bool "EISA support"
>> 3083 depends on HW_HAS_EISA
>> 3084 select ISA
>> 3085 select GENERIC_ISA_DMA
>> 3086 ---help---
>> 3087 The Extended Industry Standard Architecture (EISA) bus was
>> 3088 developed as an open alternative to the IBM MicroChannel bus.
>> 3089
>> 3090 The EISA bus provided some of the features of the IBM MicroChannel
>> 3091 bus while maintaining backward compatibility with cards made for
>> 3092 the older ISA bus. The EISA bus saw limited use between 1988 and
>> 3093 1995 when it was made obsolete by the PCI bus.
>> 3094
>> 3095 Say Y here if you are building a kernel for an EISA-based machine.
>> 3096
>> 3097 Otherwise, say N.
>> 3098
>> 3099 source "drivers/eisa/Kconfig"
>> 3100
>> 3101 config TC
>> 3102 bool "TURBOchannel support"
>> 3103 depends on MACH_DECSTATION
>> 3104 help
>> 3105 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 3106 processors. TURBOchannel programming specifications are available
>> 3107 at:
>> 3108 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
>> 3109 and:
>> 3110 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
>> 3111 Linux driver support status is documented at:
>> 3112 <http://www.linux-mips.org/wiki/DECstation>
>> 3113
>> 3114 config MMU
1101 bool 3115 bool
1102 default y 3116 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 3117
1108 config PPC4xx_CPM !! 3118 config ARCH_MMAP_RND_BITS_MIN
>> 3119 default 12 if 64BIT
>> 3120 default 8
>> 3121
>> 3122 config ARCH_MMAP_RND_BITS_MAX
>> 3123 default 18 if 64BIT
>> 3124 default 15
>> 3125
>> 3126 config ARCH_MMAP_RND_COMPAT_BITS_MIN
>> 3127 default 8
>> 3128
>> 3129 config ARCH_MMAP_RND_COMPAT_BITS_MAX
>> 3130 default 15
>> 3131
>> 3132 config I8253
1109 bool 3133 bool
1110 default y !! 3134 select CLKSRC_I8253
1111 depends on SUSPEND && 44x !! 3135 select CLKEVT_I8253
1112 help !! 3136 select MIPS_EXTERNAL_TIMER
1113 PPC4xx Clock Power Management (CPM) <<
1114 It also enables support for two dif <<
1115 and idle-doze). <<
1116 3137
1117 config FSL_LBC !! 3138 config ZONE_DMA
1118 bool "Freescale Local Bus support" !! 3139 bool
1119 help <<
1120 Enables reporting of errors from th <<
1121 controller. Also contains some com <<
1122 drivers for specific local bus peri <<
1123 3140
1124 config FSL_GTM !! 3141 config ZONE_DMA32
1125 bool 3142 bool
1126 depends on PPC_83xx || QUICC_ENGINE | <<
1127 help <<
1128 Freescale General-purpose Timers su <<
1129 3143
1130 config FSL_RIO !! 3144 source "drivers/pcmcia/Kconfig"
1131 bool "Freescale Embedded SRIO Control !! 3145
1132 depends on RAPIDIO = y && HAVE_RAPIDI !! 3146 config HAS_RAPIDIO
1133 default "n" !! 3147 bool
>> 3148 default n
>> 3149
>> 3150 config RAPIDIO
>> 3151 tristate "RapidIO support"
>> 3152 depends on HAS_RAPIDIO || PCI
1134 help 3153 help
1135 Include support for RapidIO control !! 3154 If you say Y here, the kernel will include drivers and
1136 processors (MPC8548, MPC8641, etc). !! 3155 infrastructure code to support RapidIO interconnect devices.
>> 3156
>> 3157 source "drivers/rapidio/Kconfig"
1137 3158
1138 endmenu 3159 endmenu
1139 3160
1140 config NONSTATIC_KERNEL !! 3161 config TRAD_SIGNALS
1141 bool 3162 bool
1142 3163
1143 menu "Advanced setup" !! 3164 config MIPS32_COMPAT
1144 depends on PPC32 !! 3165 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 3166
1154 Unless you know what you are doing, !! 3167 config COMPAT
>> 3168 bool
1155 3169
1156 comment "Default settings for advanced config !! 3170 config SYSVIPC_COMPAT
1157 depends on !ADVANCED_OPTIONS !! 3171 bool
1158 3172
1159 config LOWMEM_SIZE_BOOL !! 3173 config MIPS32_O32
1160 bool "Set maximum low memory" !! 3174 bool "Kernel support for o32 binaries"
1161 depends on ADVANCED_OPTIONS !! 3175 depends on 64BIT
1162 help !! 3176 select ARCH_WANT_OLD_COMPAT_IPC
1163 This option allows you to set the m !! 3177 select COMPAT
1164 will be used as "low memory", that !! 3178 select MIPS32_COMPAT
1165 access directly, without having to !! 3179 select SYSVIPC_COMPAT if SYSVIPC
1166 This can be useful in optimizing th !! 3180 help
1167 memory. !! 3181 Select this option if you want to run o32 binaries. These are pure
>> 3182 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 3183 existing binaries are in this format.
1168 3184
1169 Say N here unless you know what you !! 3185 If unsure, say Y.
1170 3186
1171 config LOWMEM_SIZE !! 3187 config MIPS32_N32
1172 hex "Maximum low memory size (in byte !! 3188 bool "Kernel support for n32 binaries"
1173 default "0x30000000" !! 3189 depends on 64BIT
>> 3190 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
>> 3191 select COMPAT
>> 3192 select MIPS32_COMPAT
>> 3193 select SYSVIPC_COMPAT if SYSVIPC
>> 3194 help
>> 3195 Select this option if you want to run n32 binaries. These are
>> 3196 64-bit binaries using 32-bit quantities for addressing and certain
>> 3197 data that would normally be 64-bit. They are used in special
>> 3198 cases.
1174 3199
1175 config LOWMEM_CAM_NUM_BOOL !! 3200 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 3201
1185 Say N here unless you know what you !! 3202 config BINFMT_ELF32
>> 3203 bool
>> 3204 default y if MIPS32_O32 || MIPS32_N32
>> 3205 select ELFCORE
1186 3206
1187 config LOWMEM_CAM_NUM !! 3207 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 3208
1195 config DYNAMIC_MEMSTART !! 3209 config ARCH_HIBERNATION_POSSIBLE
1196 bool "Enable page aligned dynamic loa !! 3210 def_bool y
1197 depends on ADVANCED_OPTIONS && FLATME !! 3211 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 3212
1250 Say N here unless you know what you !! 3213 config ARCH_SUSPEND_POSSIBLE
>> 3214 def_bool y
>> 3215 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
1251 3216
1252 config PHYSICAL_START !! 3217 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 3218
1299 endmenu 3219 endmenu
1300 3220
1301 if PPC64 !! 3221 config MIPS_EXTERNAL_TIMER
1302 # This value must have zeroes in the bottom 6 !! 3222 bool
1303 config PAGE_OFFSET !! 3223
1304 hex !! 3224 menu "CPU Power Management"
1305 default "0xc000000000000000" !! 3225
1306 config KERNEL_START !! 3226 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
1307 hex !! 3227 source "drivers/cpufreq/Kconfig"
1308 default "0xc000000000000000" <<
1309 config PHYSICAL_START <<
1310 hex <<
1311 default "0x00000000" <<
1312 endif 3228 endif
1313 3229
1314 config PPC_LIB_RHEAP !! 3230 source "drivers/cpuidle/Kconfig"
1315 bool !! 3231
>> 3232 endmenu
1316 3233
1317 source "arch/powerpc/kvm/Kconfig" !! 3234 source "drivers/firmware/Kconfig"
1318 3235
1319 source "kernel/livepatch/Kconfig" !! 3236 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.