1 # SPDX-License-Identifier: GPL-2.0-only !! 1 # SPDX-License-Identifier: GPL-2.0
2 # !! 2 config MIPS
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !! 3 bool
4 # !! 4 default y
5 !! 5 select ARCH_32BIT_OFF_T if !64BIT
6 config ARC !! 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 def_bool y !! 7 select ARCH_HAS_CPU_CACHE_ALIASING
8 select ARC_TIMERS !! 8 select ARCH_HAS_CPU_FINALIZE_INIT
9 select ARCH_HAS_CACHE_LINE_SIZE !! 9 select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
10 select ARCH_HAS_DEBUG_VM_PGTABLE !! 10 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
11 select ARCH_HAS_DMA_PREP_COHERENT !! 11 select ARCH_HAS_DMA_OPS if MACH_JAZZ
12 select ARCH_HAS_PTE_SPECIAL !! 12 select ARCH_HAS_FORTIFY_SOURCE
13 select ARCH_HAS_SETUP_DMA_OPS !! 13 select ARCH_HAS_KCOV
14 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 14 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
15 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 15 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
16 select ARCH_NEED_CMPXCHG_1_EMU !! 16 select ARCH_HAS_STRNCPY_FROM_USER
17 select ARCH_SUPPORTS_ATOMIC_RMW if ARC !! 17 select ARCH_HAS_STRNLEN_USER
18 select ARCH_32BIT_OFF_T !! 18 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>> 19 select ARCH_HAS_UBSAN
>> 20 select ARCH_HAS_GCOV_PROFILE_ALL
>> 21 select ARCH_KEEP_MEMBLOCK
>> 22 select ARCH_USE_BUILTIN_BSWAP
>> 23 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
>> 24 select ARCH_USE_MEMTEST
>> 25 select ARCH_USE_QUEUED_RWLOCKS
>> 26 select ARCH_USE_QUEUED_SPINLOCKS
>> 27 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
>> 28 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
>> 29 select ARCH_WANT_IPC_PARSE_VERSION
>> 30 select ARCH_WANT_LD_ORPHAN_WARN
19 select BUILDTIME_TABLE_SORT 31 select BUILDTIME_TABLE_SORT
20 select CLONE_BACKWARDS 32 select CLONE_BACKWARDS
21 select COMMON_CLK !! 33 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
22 select DMA_DIRECT_REMAP !! 34 select CPU_PM if CPU_IDLE || SUSPEND
23 select GENERIC_ATOMIC64 if !ISA_ARCV2 !! 35 select GENERIC_ATOMIC64 if !64BIT
24 # for now, we don't need GENERIC_IRQ_P !! 36 select GENERIC_CMOS_UPDATE
>> 37 select GENERIC_CPU_AUTOPROBE
>> 38 select GENERIC_GETTIMEOFDAY
>> 39 select GENERIC_IOMAP
>> 40 select GENERIC_IRQ_PROBE
25 select GENERIC_IRQ_SHOW 41 select GENERIC_IRQ_SHOW
26 select GENERIC_PCI_IOMAP !! 42 select GENERIC_ISA_DMA if EISA
27 select GENERIC_PENDING_IRQ if SMP !! 43 select GENERIC_LIB_ASHLDI3
28 select GENERIC_SCHED_CLOCK !! 44 select GENERIC_LIB_ASHRDI3
>> 45 select GENERIC_LIB_CMPDI2
>> 46 select GENERIC_LIB_LSHRDI3
>> 47 select GENERIC_LIB_UCMPDI2
>> 48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
29 select GENERIC_SMP_IDLE_THREAD 49 select GENERIC_SMP_IDLE_THREAD
30 select GENERIC_IOREMAP !! 50 select GENERIC_IDLE_POLL_SETUP
31 select GENERIC_STRNCPY_FROM_USER if MM !! 51 select GENERIC_TIME_VSYSCALL
32 select GENERIC_STRNLEN_USER if MMU !! 52 select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
33 select HAVE_ARCH_KGDB !! 53 select HAS_IOPORT if !NO_IOPORT_MAP || ISA
>> 54 select HAVE_ARCH_COMPILER_H
>> 55 select HAVE_ARCH_JUMP_LABEL
>> 56 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
>> 57 select HAVE_ARCH_MMAP_RND_BITS if MMU
>> 58 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
>> 59 select HAVE_ARCH_SECCOMP_FILTER
34 select HAVE_ARCH_TRACEHOOK 60 select HAVE_ARCH_TRACEHOOK
35 select HAVE_ARCH_TRANSPARENT_HUGEPAGE !! 61 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
36 select HAVE_DEBUG_STACKOVERFLOW !! 62 select HAVE_ASM_MODVERSIONS
>> 63 select HAVE_CONTEXT_TRACKING_USER
>> 64 select HAVE_TIF_NOHZ
>> 65 select HAVE_C_RECORDMCOUNT
37 select HAVE_DEBUG_KMEMLEAK 66 select HAVE_DEBUG_KMEMLEAK
>> 67 select HAVE_DEBUG_STACKOVERFLOW
>> 68 select HAVE_DMA_CONTIGUOUS
>> 69 select HAVE_DYNAMIC_FTRACE
>> 70 select HAVE_EBPF_JIT if !CPU_MICROMIPS
>> 71 select HAVE_EXIT_THREAD
>> 72 select HAVE_GUP_FAST
>> 73 select HAVE_FTRACE_MCOUNT_RECORD
>> 74 select HAVE_FUNCTION_GRAPH_TRACER
>> 75 select HAVE_FUNCTION_TRACER
>> 76 select HAVE_GCC_PLUGINS
>> 77 select HAVE_GENERIC_VDSO
38 select HAVE_IOREMAP_PROT 78 select HAVE_IOREMAP_PROT
39 select HAVE_KERNEL_GZIP !! 79 select HAVE_IRQ_EXIT_ON_IRQ_STACK
40 select HAVE_KERNEL_LZMA !! 80 select HAVE_IRQ_TIME_ACCOUNTING
41 select HAVE_KPROBES 81 select HAVE_KPROBES
42 select HAVE_KRETPROBES 82 select HAVE_KRETPROBES
43 select HAVE_REGS_AND_STACK_ACCESS_API !! 83 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
44 select HAVE_MOD_ARCH_SPECIFIC 84 select HAVE_MOD_ARCH_SPECIFIC
>> 85 select HAVE_NMI
>> 86 select HAVE_PAGE_SIZE_4KB if !CPU_LOONGSON2EF && !CPU_LOONGSON64
>> 87 select HAVE_PAGE_SIZE_16KB if !CPU_R3000
>> 88 select HAVE_PAGE_SIZE_64KB if !CPU_R3000
45 select HAVE_PERF_EVENTS 89 select HAVE_PERF_EVENTS
>> 90 select HAVE_PERF_REGS
>> 91 select HAVE_PERF_USER_STACK_DUMP
>> 92 select HAVE_REGS_AND_STACK_ACCESS_API
>> 93 select HAVE_RSEQ
>> 94 select HAVE_SPARSE_SYSCALL_NR
>> 95 select HAVE_STACKPROTECTOR
46 select HAVE_SYSCALL_TRACEPOINTS 96 select HAVE_SYSCALL_TRACEPOINTS
47 select IRQ_DOMAIN !! 97 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
>> 98 select IRQ_FORCED_THREADING
>> 99 select ISA if EISA
48 select LOCK_MM_AND_FIND_VMA 100 select LOCK_MM_AND_FIND_VMA
49 select MODULES_USE_ELF_RELA !! 101 select MODULES_USE_ELF_REL if MODULES
50 select OF !! 102 select MODULES_USE_ELF_RELA if MODULES && 64BIT
51 select OF_EARLY_FLATTREE !! 103 select PERF_USE_VMALLOC
52 select PCI_SYSCALL if PCI !! 104 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
53 select HAVE_ARCH_JUMP_LABEL if ISA_ARC !! 105 select RTC_LIB
>> 106 select SYSCTL_EXCEPTION_TRACE
54 select TRACE_IRQFLAGS_SUPPORT 107 select TRACE_IRQFLAGS_SUPPORT
55 select HAVE_EBPF_JIT if ISA_ARCV2 !! 108 select ARCH_HAS_ELFCORE_COMPAT
>> 109 select HAVE_ARCH_KCSAN if 64BIT
56 110
57 config LOCKDEP_SUPPORT !! 111 config MIPS_FIXUP_BIGPHYS_ADDR
58 def_bool y !! 112 bool
59 113
60 config SCHED_OMIT_FRAME_POINTER !! 114 config MIPS_GENERIC
61 def_bool y !! 115 bool
62 116
63 config GENERIC_CSUM !! 117 config MACH_GENERIC_CORE
64 def_bool y !! 118 bool
>> 119
>> 120 config MACH_INGENIC
>> 121 bool
>> 122 select SYS_SUPPORTS_32BIT_KERNEL
>> 123 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 124 select SYS_SUPPORTS_ZBOOT
>> 125 select DMA_NONCOHERENT
>> 126 select IRQ_MIPS_CPU
>> 127 select PINCTRL
>> 128 select GPIOLIB
>> 129 select COMMON_CLK
>> 130 select GENERIC_IRQ_CHIP
>> 131 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
>> 132 select USE_OF
>> 133 select CPU_SUPPORTS_CPUFREQ
>> 134 select MIPS_EXTERNAL_TIMER
65 135
66 config ARCH_FLATMEM_ENABLE !! 136 menu "Machine selection"
67 def_bool y <<
68 137
69 config MMU !! 138 choice
70 def_bool y !! 139 prompt "System type"
>> 140 default MIPS_GENERIC_KERNEL
71 141
72 config NO_IOPORT_MAP !! 142 config MIPS_GENERIC_KERNEL
73 def_bool y !! 143 bool "Generic board-agnostic MIPS kernel"
>> 144 select MIPS_GENERIC
>> 145 select BOOT_RAW
>> 146 select BUILTIN_DTB
>> 147 select CEVT_R4K
>> 148 select CLKSRC_MIPS_GIC
>> 149 select COMMON_CLK
>> 150 select CPU_MIPSR2_IRQ_EI
>> 151 select CPU_MIPSR2_IRQ_VI
>> 152 select CSRC_R4K
>> 153 select DMA_NONCOHERENT
>> 154 select HAVE_PCI
>> 155 select IRQ_MIPS_CPU
>> 156 select MACH_GENERIC_CORE
>> 157 select MIPS_AUTO_PFN_OFFSET
>> 158 select MIPS_CPU_SCACHE
>> 159 select MIPS_GIC
>> 160 select MIPS_L1_CACHE_SHIFT_7
>> 161 select NO_EXCEPT_FILL
>> 162 select PCI_DRIVERS_GENERIC
>> 163 select SMP_UP if SMP
>> 164 select SWAP_IO_SPACE
>> 165 select SYS_HAS_CPU_MIPS32_R1
>> 166 select SYS_HAS_CPU_MIPS32_R2
>> 167 select SYS_HAS_CPU_MIPS32_R5
>> 168 select SYS_HAS_CPU_MIPS32_R6
>> 169 select SYS_HAS_CPU_MIPS64_R1
>> 170 select SYS_HAS_CPU_MIPS64_R2
>> 171 select SYS_HAS_CPU_MIPS64_R5
>> 172 select SYS_HAS_CPU_MIPS64_R6
>> 173 select SYS_SUPPORTS_32BIT_KERNEL
>> 174 select SYS_SUPPORTS_64BIT_KERNEL
>> 175 select SYS_SUPPORTS_BIG_ENDIAN
>> 176 select SYS_SUPPORTS_HIGHMEM
>> 177 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 178 select SYS_SUPPORTS_MICROMIPS
>> 179 select SYS_SUPPORTS_MIPS16
>> 180 select SYS_SUPPORTS_MIPS_CPS
>> 181 select SYS_SUPPORTS_MULTITHREADING
>> 182 select SYS_SUPPORTS_RELOCATABLE
>> 183 select SYS_SUPPORTS_SMARTMIPS
>> 184 select SYS_SUPPORTS_ZBOOT
>> 185 select UHI_BOOT
>> 186 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 187 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 188 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 189 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 190 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 191 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 192 select USE_OF
>> 193 help
>> 194 Select this to build a kernel which aims to support multiple boards,
>> 195 generally using a flattened device tree passed from the bootloader
>> 196 using the boot protocol defined in the UHI (Unified Hosting
>> 197 Interface) specification.
74 198
75 config GENERIC_CALIBRATE_DELAY !! 199 config MIPS_ALCHEMY
76 def_bool y !! 200 bool "Alchemy processor based machines"
>> 201 select PHYS_ADDR_T_64BIT
>> 202 select CEVT_R4K
>> 203 select CSRC_R4K
>> 204 select IRQ_MIPS_CPU
>> 205 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is
>> 206 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
>> 207 select SYS_HAS_CPU_MIPS32_R1
>> 208 select SYS_SUPPORTS_32BIT_KERNEL
>> 209 select SYS_SUPPORTS_APM_EMULATION
>> 210 select GPIOLIB
>> 211 select SYS_SUPPORTS_ZBOOT
>> 212 select COMMON_CLK
>> 213
>> 214 config ATH25
>> 215 bool "Atheros AR231x/AR531x SoC support"
>> 216 select CEVT_R4K
>> 217 select CSRC_R4K
>> 218 select DMA_NONCOHERENT
>> 219 select IRQ_MIPS_CPU
>> 220 select IRQ_DOMAIN
>> 221 select SYS_HAS_CPU_MIPS32_R1
>> 222 select SYS_SUPPORTS_BIG_ENDIAN
>> 223 select SYS_SUPPORTS_32BIT_KERNEL
>> 224 select SYS_HAS_EARLY_PRINTK
>> 225 help
>> 226 Support for Atheros AR231x and Atheros AR531x based boards
>> 227
>> 228 config ATH79
>> 229 bool "Atheros AR71XX/AR724X/AR913X based boards"
>> 230 select ARCH_HAS_RESET_CONTROLLER
>> 231 select BOOT_RAW
>> 232 select CEVT_R4K
>> 233 select CSRC_R4K
>> 234 select DMA_NONCOHERENT
>> 235 select GPIOLIB
>> 236 select PINCTRL
>> 237 select COMMON_CLK
>> 238 select IRQ_MIPS_CPU
>> 239 select SYS_HAS_CPU_MIPS32_R2
>> 240 select SYS_HAS_EARLY_PRINTK
>> 241 select SYS_SUPPORTS_32BIT_KERNEL
>> 242 select SYS_SUPPORTS_BIG_ENDIAN
>> 243 select SYS_SUPPORTS_MIPS16
>> 244 select SYS_SUPPORTS_ZBOOT_UART_PROM
>> 245 select USE_OF
>> 246 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
>> 247 help
>> 248 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
>> 249
>> 250 config BMIPS_GENERIC
>> 251 bool "Broadcom Generic BMIPS kernel"
>> 252 select ARCH_HAS_RESET_CONTROLLER
>> 253 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
>> 254 select BOOT_RAW
>> 255 select NO_EXCEPT_FILL
>> 256 select USE_OF
>> 257 select CEVT_R4K
>> 258 select CSRC_R4K
>> 259 select SYNC_R4K
>> 260 select COMMON_CLK
>> 261 select BCM6345_L1_IRQ
>> 262 select BCM7038_L1_IRQ
>> 263 select BCM7120_L2_IRQ
>> 264 select BRCMSTB_L2_IRQ
>> 265 select IRQ_MIPS_CPU
>> 266 select DMA_NONCOHERENT
>> 267 select SYS_SUPPORTS_32BIT_KERNEL
>> 268 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 269 select SYS_SUPPORTS_BIG_ENDIAN
>> 270 select SYS_SUPPORTS_HIGHMEM
>> 271 select SYS_HAS_CPU_BMIPS32_3300
>> 272 select SYS_HAS_CPU_BMIPS4350
>> 273 select SYS_HAS_CPU_BMIPS4380
>> 274 select SYS_HAS_CPU_BMIPS5000
>> 275 select SWAP_IO_SPACE
>> 276 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 277 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 278 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 279 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 280 select HARDIRQS_SW_RESEND
>> 281 select HAVE_PCI
>> 282 select PCI_DRIVERS_GENERIC
>> 283 select FW_CFE
>> 284 help
>> 285 Build a generic DT-based kernel image that boots on select
>> 286 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
>> 287 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
>> 288 must be set appropriately for your board.
>> 289
>> 290 config BCM47XX
>> 291 bool "Broadcom BCM47XX based boards"
>> 292 select BOOT_RAW
>> 293 select CEVT_R4K
>> 294 select CSRC_R4K
>> 295 select DMA_NONCOHERENT
>> 296 select HAVE_PCI
>> 297 select IRQ_MIPS_CPU
>> 298 select SYS_HAS_CPU_MIPS32_R1
>> 299 select NO_EXCEPT_FILL
>> 300 select SYS_SUPPORTS_32BIT_KERNEL
>> 301 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 302 select SYS_SUPPORTS_MIPS16
>> 303 select SYS_SUPPORTS_ZBOOT
>> 304 select SYS_HAS_EARLY_PRINTK
>> 305 select USE_GENERIC_EARLY_PRINTK_8250
>> 306 select GPIOLIB
>> 307 select LEDS_GPIO_REGISTER
>> 308 select BCM47XX_NVRAM
>> 309 select BCM47XX_SPROM
>> 310 select BCM47XX_SSB if !BCM47XX_BCMA
>> 311 help
>> 312 Support for BCM47XX based boards
>> 313
>> 314 config BCM63XX
>> 315 bool "Broadcom BCM63XX based boards"
>> 316 select BOOT_RAW
>> 317 select CEVT_R4K
>> 318 select CSRC_R4K
>> 319 select SYNC_R4K
>> 320 select DMA_NONCOHERENT
>> 321 select IRQ_MIPS_CPU
>> 322 select SYS_SUPPORTS_32BIT_KERNEL
>> 323 select SYS_SUPPORTS_BIG_ENDIAN
>> 324 select SYS_HAS_EARLY_PRINTK
>> 325 select SYS_HAS_CPU_BMIPS32_3300
>> 326 select SYS_HAS_CPU_BMIPS4350
>> 327 select SYS_HAS_CPU_BMIPS4380
>> 328 select SWAP_IO_SPACE
>> 329 select GPIOLIB
>> 330 select MIPS_L1_CACHE_SHIFT_4
>> 331 select HAVE_LEGACY_CLK
>> 332 help
>> 333 Support for BCM63XX based boards
>> 334
>> 335 config MIPS_COBALT
>> 336 bool "Cobalt Server"
>> 337 select CEVT_R4K
>> 338 select CSRC_R4K
>> 339 select CEVT_GT641XX
>> 340 select DMA_NONCOHERENT
>> 341 select FORCE_PCI
>> 342 select I8253
>> 343 select I8259
>> 344 select IRQ_MIPS_CPU
>> 345 select IRQ_GT641XX
>> 346 select PCI_GT64XXX_PCI0
>> 347 select SYS_HAS_CPU_NEVADA
>> 348 select SYS_HAS_EARLY_PRINTK
>> 349 select SYS_SUPPORTS_32BIT_KERNEL
>> 350 select SYS_SUPPORTS_64BIT_KERNEL
>> 351 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 352 select USE_GENERIC_EARLY_PRINTK_8250
>> 353
>> 354 config MACH_DECSTATION
>> 355 bool "DECstations"
>> 356 select BOOT_ELF32
>> 357 select CEVT_DS1287
>> 358 select CEVT_R4K if CPU_R4X00
>> 359 select CSRC_IOASIC
>> 360 select CSRC_R4K if CPU_R4X00
>> 361 select CPU_DADDI_WORKAROUNDS if 64BIT
>> 362 select CPU_R4000_WORKAROUNDS if 64BIT
>> 363 select CPU_R4400_WORKAROUNDS if 64BIT
>> 364 select DMA_NONCOHERENT
>> 365 select NO_IOPORT_MAP
>> 366 select IRQ_MIPS_CPU
>> 367 select SYS_HAS_CPU_R3000
>> 368 select SYS_HAS_CPU_R4X00
>> 369 select SYS_SUPPORTS_32BIT_KERNEL
>> 370 select SYS_SUPPORTS_64BIT_KERNEL
>> 371 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 372 select SYS_SUPPORTS_128HZ
>> 373 select SYS_SUPPORTS_256HZ
>> 374 select SYS_SUPPORTS_1024HZ
>> 375 select MIPS_L1_CACHE_SHIFT_4
>> 376 help
>> 377 This enables support for DEC's MIPS based workstations. For details
>> 378 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
>> 379 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 380
>> 381 If you have one of the following DECstation Models you definitely
>> 382 want to choose R4xx0 for the CPU Type:
>> 383
>> 384 DECstation 5000/50
>> 385 DECstation 5000/150
>> 386 DECstation 5000/260
>> 387 DECsystem 5900/260
>> 388
>> 389 otherwise choose R3000.
>> 390
>> 391 config MACH_JAZZ
>> 392 bool "Jazz family of machines"
>> 393 select ARC_MEMORY
>> 394 select ARC_PROMLIB
>> 395 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 396 select ARCH_MIGHT_HAVE_PC_SERIO
>> 397 select FW_ARC
>> 398 select FW_ARC32
>> 399 select ARCH_MAY_HAVE_PC_FDC
>> 400 select CEVT_R4K
>> 401 select CSRC_R4K
>> 402 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 403 select GENERIC_ISA_DMA
>> 404 select HAVE_PCSPKR_PLATFORM
>> 405 select IRQ_MIPS_CPU
>> 406 select I8253
>> 407 select I8259
>> 408 select ISA
>> 409 select SYS_HAS_CPU_R4X00
>> 410 select SYS_SUPPORTS_32BIT_KERNEL
>> 411 select SYS_SUPPORTS_64BIT_KERNEL
>> 412 select SYS_SUPPORTS_100HZ
>> 413 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 414 help
>> 415 This a family of machines based on the MIPS R4030 chipset which was
>> 416 used by several vendors to build RISC/os and Windows NT workstations.
>> 417 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
>> 418 Olivetti M700-10 workstations.
>> 419
>> 420 config MACH_INGENIC_SOC
>> 421 bool "Ingenic SoC based machines"
>> 422 select MIPS_GENERIC
>> 423 select MACH_INGENIC
>> 424 select MACH_GENERIC_CORE
>> 425 select SYS_SUPPORTS_ZBOOT_UART16550
>> 426 select CPU_SUPPORTS_CPUFREQ
>> 427 select MIPS_EXTERNAL_TIMER
>> 428
>> 429 config LANTIQ
>> 430 bool "Lantiq based platforms"
>> 431 select DMA_NONCOHERENT
>> 432 select IRQ_MIPS_CPU
>> 433 select CEVT_R4K
>> 434 select CSRC_R4K
>> 435 select NO_EXCEPT_FILL
>> 436 select SYS_HAS_CPU_MIPS32_R1
>> 437 select SYS_HAS_CPU_MIPS32_R2
>> 438 select SYS_SUPPORTS_BIG_ENDIAN
>> 439 select SYS_SUPPORTS_32BIT_KERNEL
>> 440 select SYS_SUPPORTS_MIPS16
>> 441 select SYS_SUPPORTS_MULTITHREADING
>> 442 select SYS_SUPPORTS_VPE_LOADER
>> 443 select SYS_HAS_EARLY_PRINTK
>> 444 select GPIOLIB
>> 445 select SWAP_IO_SPACE
>> 446 select BOOT_RAW
>> 447 select HAVE_LEGACY_CLK
>> 448 select USE_OF
>> 449 select PINCTRL
>> 450 select PINCTRL_LANTIQ
>> 451 select ARCH_HAS_RESET_CONTROLLER
>> 452 select RESET_CONTROLLER
>> 453
>> 454 config MACH_LOONGSON32
>> 455 bool "Loongson 32-bit family of machines"
>> 456 select SYS_SUPPORTS_ZBOOT
>> 457 help
>> 458 This enables support for the Loongson-1 family of machines.
>> 459
>> 460 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
>> 461 the Institute of Computing Technology (ICT), Chinese Academy of
>> 462 Sciences (CAS).
>> 463
>> 464 config MACH_LOONGSON2EF
>> 465 bool "Loongson-2E/F family of machines"
>> 466 select SYS_SUPPORTS_ZBOOT
>> 467 help
>> 468 This enables the support of early Loongson-2E/F family of machines.
>> 469
>> 470 config MACH_LOONGSON64
>> 471 bool "Loongson 64-bit family of machines"
>> 472 select ARCH_DMA_DEFAULT_COHERENT
>> 473 select ARCH_SPARSEMEM_ENABLE
>> 474 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 475 select ARCH_MIGHT_HAVE_PC_SERIO
>> 476 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 477 select BOOT_ELF32
>> 478 select BOARD_SCACHE
>> 479 select CSRC_R4K
>> 480 select CEVT_R4K
>> 481 select SYNC_R4K
>> 482 select FORCE_PCI
>> 483 select ISA
>> 484 select I8259
>> 485 select IRQ_MIPS_CPU
>> 486 select NO_EXCEPT_FILL
>> 487 select NR_CPUS_DEFAULT_64
>> 488 select USE_GENERIC_EARLY_PRINTK_8250
>> 489 select PCI_DRIVERS_GENERIC
>> 490 select SYS_HAS_CPU_LOONGSON64
>> 491 select SYS_HAS_EARLY_PRINTK
>> 492 select SYS_SUPPORTS_SMP
>> 493 select SYS_SUPPORTS_HOTPLUG_CPU
>> 494 select SYS_SUPPORTS_NUMA
>> 495 select SYS_SUPPORTS_64BIT_KERNEL
>> 496 select SYS_SUPPORTS_HIGHMEM
>> 497 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 498 select SYS_SUPPORTS_ZBOOT
>> 499 select SYS_SUPPORTS_RELOCATABLE
>> 500 select ZONE_DMA32
>> 501 select COMMON_CLK
>> 502 select USE_OF
>> 503 select BUILTIN_DTB
>> 504 select PCI_HOST_GENERIC
>> 505 help
>> 506 This enables the support of Loongson-2/3 family of machines.
>> 507
>> 508 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
>> 509 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
>> 510 and Loongson-2F which will be removed), developed by the Institute
>> 511 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
>> 512
>> 513 config MIPS_MALTA
>> 514 bool "MIPS Malta board"
>> 515 select ARCH_MAY_HAVE_PC_FDC
>> 516 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 517 select ARCH_MIGHT_HAVE_PC_SERIO
>> 518 select BOOT_ELF32
>> 519 select BOOT_RAW
>> 520 select BUILTIN_DTB
>> 521 select CEVT_R4K
>> 522 select CLKSRC_MIPS_GIC
>> 523 select COMMON_CLK
>> 524 select CSRC_R4K
>> 525 select DMA_NONCOHERENT
>> 526 select GENERIC_ISA_DMA
>> 527 select HAVE_PCSPKR_PLATFORM
>> 528 select HAVE_PCI
>> 529 select I8253
>> 530 select I8259
>> 531 select IRQ_MIPS_CPU
>> 532 select MIPS_BONITO64
>> 533 select MIPS_CPU_SCACHE
>> 534 select MIPS_GIC
>> 535 select MIPS_L1_CACHE_SHIFT_6
>> 536 select MIPS_MSC
>> 537 select PCI_GT64XXX_PCI0
>> 538 select SMP_UP if SMP
>> 539 select SWAP_IO_SPACE
>> 540 select SYS_HAS_CPU_MIPS32_R1
>> 541 select SYS_HAS_CPU_MIPS32_R2
>> 542 select SYS_HAS_CPU_MIPS32_R3_5
>> 543 select SYS_HAS_CPU_MIPS32_R5
>> 544 select SYS_HAS_CPU_MIPS32_R6
>> 545 select SYS_HAS_CPU_MIPS64_R1
>> 546 select SYS_HAS_CPU_MIPS64_R2
>> 547 select SYS_HAS_CPU_MIPS64_R6
>> 548 select SYS_HAS_CPU_NEVADA
>> 549 select SYS_HAS_CPU_RM7000
>> 550 select SYS_SUPPORTS_32BIT_KERNEL
>> 551 select SYS_SUPPORTS_64BIT_KERNEL
>> 552 select SYS_SUPPORTS_BIG_ENDIAN
>> 553 select SYS_SUPPORTS_HIGHMEM
>> 554 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 555 select SYS_SUPPORTS_MICROMIPS
>> 556 select SYS_SUPPORTS_MIPS16
>> 557 select SYS_SUPPORTS_MIPS_CPS
>> 558 select SYS_SUPPORTS_MULTITHREADING
>> 559 select SYS_SUPPORTS_RELOCATABLE
>> 560 select SYS_SUPPORTS_SMARTMIPS
>> 561 select SYS_SUPPORTS_VPE_LOADER
>> 562 select SYS_SUPPORTS_ZBOOT
>> 563 select USE_OF
>> 564 select WAR_ICACHE_REFILLS
>> 565 select ZONE_DMA32 if 64BIT
>> 566 help
>> 567 This enables support for the MIPS Technologies Malta evaluation
>> 568 board.
>> 569
>> 570 config MACH_PIC32
>> 571 bool "Microchip PIC32 Family"
>> 572 help
>> 573 This enables support for the Microchip PIC32 family of platforms.
>> 574
>> 575 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
>> 576 microcontrollers.
>> 577
>> 578 config EYEQ
>> 579 bool "Mobileye EyeQ SoC"
>> 580 select MACH_GENERIC_CORE
>> 581 select ARM_AMBA
>> 582 select PHYSICAL_START_BOOL
>> 583 select ARCH_SPARSEMEM_DEFAULT if 64BIT
>> 584 select BOOT_RAW
>> 585 select BUILTIN_DTB
>> 586 select CEVT_R4K
>> 587 select CLKSRC_MIPS_GIC
>> 588 select COMMON_CLK
>> 589 select CPU_MIPSR2_IRQ_EI
>> 590 select CPU_MIPSR2_IRQ_VI
>> 591 select CSRC_R4K
>> 592 select DMA_NONCOHERENT
>> 593 select HAVE_PCI
>> 594 select IRQ_MIPS_CPU
>> 595 select MIPS_AUTO_PFN_OFFSET
>> 596 select MIPS_CPU_SCACHE
>> 597 select MIPS_GIC
>> 598 select MIPS_L1_CACHE_SHIFT_7
>> 599 select PCI_DRIVERS_GENERIC
>> 600 select SMP_UP if SMP
>> 601 select SWAP_IO_SPACE
>> 602 select SYS_HAS_CPU_MIPS64_R6
>> 603 select SYS_SUPPORTS_64BIT_KERNEL
>> 604 select SYS_SUPPORTS_HIGHMEM
>> 605 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 606 select SYS_SUPPORTS_MIPS_CPS
>> 607 select SYS_SUPPORTS_RELOCATABLE
>> 608 select SYS_SUPPORTS_ZBOOT
>> 609 select UHI_BOOT
>> 610 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 611 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 612 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 613 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 614 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 615 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 616 select USE_OF
>> 617 help
>> 618 Select this to build a kernel supporting EyeQ SoC from Mobileye.
>> 619
>> 620 bool
>> 621
>> 622 config MACH_NINTENDO64
>> 623 bool "Nintendo 64 console"
>> 624 select CEVT_R4K
>> 625 select CSRC_R4K
>> 626 select SYS_HAS_CPU_R4300
>> 627 select SYS_SUPPORTS_BIG_ENDIAN
>> 628 select SYS_SUPPORTS_ZBOOT
>> 629 select SYS_SUPPORTS_32BIT_KERNEL
>> 630 select SYS_SUPPORTS_64BIT_KERNEL
>> 631 select DMA_NONCOHERENT
>> 632 select IRQ_MIPS_CPU
>> 633
>> 634 config RALINK
>> 635 bool "Ralink based machines"
>> 636 select CEVT_R4K
>> 637 select COMMON_CLK
>> 638 select CSRC_R4K
>> 639 select BOOT_RAW
>> 640 select DMA_NONCOHERENT
>> 641 select IRQ_MIPS_CPU
>> 642 select USE_OF
>> 643 select SYS_HAS_CPU_MIPS32_R2
>> 644 select SYS_SUPPORTS_32BIT_KERNEL
>> 645 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 646 select SYS_SUPPORTS_MIPS16
>> 647 select SYS_SUPPORTS_ZBOOT
>> 648 select SYS_HAS_EARLY_PRINTK
>> 649 select ARCH_HAS_RESET_CONTROLLER
>> 650 select RESET_CONTROLLER
>> 651
>> 652 config MACH_REALTEK_RTL
>> 653 bool "Realtek RTL838x/RTL839x based machines"
>> 654 select MIPS_GENERIC
>> 655 select MACH_GENERIC_CORE
>> 656 select DMA_NONCOHERENT
>> 657 select IRQ_MIPS_CPU
>> 658 select CSRC_R4K
>> 659 select CEVT_R4K
>> 660 select SYS_HAS_CPU_MIPS32_R1
>> 661 select SYS_HAS_CPU_MIPS32_R2
>> 662 select SYS_SUPPORTS_BIG_ENDIAN
>> 663 select SYS_SUPPORTS_32BIT_KERNEL
>> 664 select SYS_SUPPORTS_MIPS16
>> 665 select SYS_SUPPORTS_MULTITHREADING
>> 666 select SYS_SUPPORTS_VPE_LOADER
>> 667 select BOOT_RAW
>> 668 select PINCTRL
>> 669 select USE_OF
>> 670 select REALTEK_OTTO_TIMER
>> 671
>> 672 config SGI_IP22
>> 673 bool "SGI IP22 (Indy/Indigo2)"
>> 674 select ARC_MEMORY
>> 675 select ARC_PROMLIB
>> 676 select FW_ARC
>> 677 select FW_ARC32
>> 678 select ARCH_MIGHT_HAVE_PC_SERIO
>> 679 select BOOT_ELF32
>> 680 select CEVT_R4K
>> 681 select CSRC_R4K
>> 682 select DEFAULT_SGI_PARTITION
>> 683 select DMA_NONCOHERENT
>> 684 select HAVE_EISA
>> 685 select I8253
>> 686 select I8259
>> 687 select IP22_CPU_SCACHE
>> 688 select IRQ_MIPS_CPU
>> 689 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 690 select SGI_HAS_I8042
>> 691 select SGI_HAS_INDYDOG
>> 692 select SGI_HAS_HAL2
>> 693 select SGI_HAS_SEEQ
>> 694 select SGI_HAS_WD93
>> 695 select SGI_HAS_ZILOG
>> 696 select SWAP_IO_SPACE
>> 697 select SYS_HAS_CPU_R4X00
>> 698 select SYS_HAS_CPU_R5000
>> 699 select SYS_HAS_EARLY_PRINTK
>> 700 select SYS_SUPPORTS_32BIT_KERNEL
>> 701 select SYS_SUPPORTS_64BIT_KERNEL
>> 702 select SYS_SUPPORTS_BIG_ENDIAN
>> 703 select WAR_R4600_V1_INDEX_ICACHEOP
>> 704 select WAR_R4600_V1_HIT_CACHEOP
>> 705 select WAR_R4600_V2_HIT_CACHEOP
>> 706 select MIPS_L1_CACHE_SHIFT_7
>> 707 help
>> 708 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 709 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 710 that runs on these, say Y here.
>> 711
>> 712 config SGI_IP27
>> 713 bool "SGI IP27 (Origin200/2000)"
>> 714 select ARCH_HAS_PHYS_TO_DMA
>> 715 select ARCH_SPARSEMEM_ENABLE
>> 716 select FW_ARC
>> 717 select FW_ARC64
>> 718 select ARC_CMDLINE_ONLY
>> 719 select BOOT_ELF64
>> 720 select DEFAULT_SGI_PARTITION
>> 721 select FORCE_PCI
>> 722 select SYS_HAS_EARLY_PRINTK
>> 723 select HAVE_PCI
>> 724 select IRQ_MIPS_CPU
>> 725 select IRQ_DOMAIN_HIERARCHY
>> 726 select NR_CPUS_DEFAULT_64
>> 727 select PCI_DRIVERS_GENERIC
>> 728 select PCI_XTALK_BRIDGE
>> 729 select SYS_HAS_CPU_R10000
>> 730 select SYS_SUPPORTS_64BIT_KERNEL
>> 731 select SYS_SUPPORTS_BIG_ENDIAN
>> 732 select SYS_SUPPORTS_NUMA
>> 733 select SYS_SUPPORTS_SMP
>> 734 select WAR_R10000_LLSC
>> 735 select MIPS_L1_CACHE_SHIFT_7
>> 736 select NUMA
>> 737 help
>> 738 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 739 workstations. To compile a Linux kernel that runs on these, say Y
>> 740 here.
>> 741
>> 742 config SGI_IP28
>> 743 bool "SGI IP28 (Indigo2 R10k)"
>> 744 select ARC_MEMORY
>> 745 select ARC_PROMLIB
>> 746 select FW_ARC
>> 747 select FW_ARC64
>> 748 select ARCH_MIGHT_HAVE_PC_SERIO
>> 749 select BOOT_ELF64
>> 750 select CEVT_R4K
>> 751 select CSRC_R4K
>> 752 select DEFAULT_SGI_PARTITION
>> 753 select DMA_NONCOHERENT
>> 754 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 755 select IRQ_MIPS_CPU
>> 756 select HAVE_EISA
>> 757 select I8253
>> 758 select I8259
>> 759 select SGI_HAS_I8042
>> 760 select SGI_HAS_INDYDOG
>> 761 select SGI_HAS_HAL2
>> 762 select SGI_HAS_SEEQ
>> 763 select SGI_HAS_WD93
>> 764 select SGI_HAS_ZILOG
>> 765 select SWAP_IO_SPACE
>> 766 select SYS_HAS_CPU_R10000
>> 767 select SYS_HAS_EARLY_PRINTK
>> 768 select SYS_SUPPORTS_64BIT_KERNEL
>> 769 select SYS_SUPPORTS_BIG_ENDIAN
>> 770 select WAR_R10000_LLSC
>> 771 select MIPS_L1_CACHE_SHIFT_7
>> 772 help
>> 773 This is the SGI Indigo2 with R10000 processor. To compile a Linux
>> 774 kernel that runs on these, say Y here.
>> 775
>> 776 config SGI_IP30
>> 777 bool "SGI IP30 (Octane/Octane2)"
>> 778 select ARCH_HAS_PHYS_TO_DMA
>> 779 select FW_ARC
>> 780 select FW_ARC64
>> 781 select BOOT_ELF64
>> 782 select CEVT_R4K
>> 783 select CSRC_R4K
>> 784 select FORCE_PCI
>> 785 select SYNC_R4K if SMP
>> 786 select ZONE_DMA32
>> 787 select HAVE_PCI
>> 788 select IRQ_MIPS_CPU
>> 789 select IRQ_DOMAIN_HIERARCHY
>> 790 select PCI_DRIVERS_GENERIC
>> 791 select PCI_XTALK_BRIDGE
>> 792 select SYS_HAS_EARLY_PRINTK
>> 793 select SYS_HAS_CPU_R10000
>> 794 select SYS_SUPPORTS_64BIT_KERNEL
>> 795 select SYS_SUPPORTS_BIG_ENDIAN
>> 796 select SYS_SUPPORTS_SMP
>> 797 select WAR_R10000_LLSC
>> 798 select MIPS_L1_CACHE_SHIFT_7
>> 799 select ARC_MEMORY
>> 800 help
>> 801 These are the SGI Octane and Octane2 graphics workstations. To
>> 802 compile a Linux kernel that runs on these, say Y here.
>> 803
>> 804 config SGI_IP32
>> 805 bool "SGI IP32 (O2)"
>> 806 select ARC_MEMORY
>> 807 select ARC_PROMLIB
>> 808 select ARCH_HAS_PHYS_TO_DMA
>> 809 select FW_ARC
>> 810 select FW_ARC32
>> 811 select BOOT_ELF32
>> 812 select CEVT_R4K
>> 813 select CSRC_R4K
>> 814 select DMA_NONCOHERENT
>> 815 select HAVE_PCI
>> 816 select IRQ_MIPS_CPU
>> 817 select R5000_CPU_SCACHE
>> 818 select RM7000_CPU_SCACHE
>> 819 select SYS_HAS_CPU_R5000
>> 820 select SYS_HAS_CPU_R10000 if BROKEN
>> 821 select SYS_HAS_CPU_RM7000
>> 822 select SYS_HAS_CPU_NEVADA
>> 823 select SYS_SUPPORTS_64BIT_KERNEL
>> 824 select SYS_SUPPORTS_BIG_ENDIAN
>> 825 select WAR_ICACHE_REFILLS
>> 826 help
>> 827 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 828
>> 829 config SIBYTE_CRHONE
>> 830 bool "Sibyte BCM91125C-CRhone"
>> 831 select BOOT_ELF32
>> 832 select SIBYTE_BCM1125
>> 833 select SWAP_IO_SPACE
>> 834 select SYS_HAS_CPU_SB1
>> 835 select SYS_SUPPORTS_BIG_ENDIAN
>> 836 select SYS_SUPPORTS_HIGHMEM
>> 837 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 838
>> 839 config SIBYTE_RHONE
>> 840 bool "Sibyte BCM91125E-Rhone"
>> 841 select BOOT_ELF32
>> 842 select SIBYTE_SB1250
>> 843 select SWAP_IO_SPACE
>> 844 select SYS_HAS_CPU_SB1
>> 845 select SYS_SUPPORTS_BIG_ENDIAN
>> 846 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 847
>> 848 config SIBYTE_SWARM
>> 849 bool "Sibyte BCM91250A-SWARM"
>> 850 select BOOT_ELF32
>> 851 select HAVE_PATA_PLATFORM
>> 852 select SIBYTE_SB1250
>> 853 select SWAP_IO_SPACE
>> 854 select SYS_HAS_CPU_SB1
>> 855 select SYS_SUPPORTS_BIG_ENDIAN
>> 856 select SYS_SUPPORTS_HIGHMEM
>> 857 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 858 select ZONE_DMA32 if 64BIT
>> 859 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 860
>> 861 config SIBYTE_LITTLESUR
>> 862 bool "Sibyte BCM91250C2-LittleSur"
>> 863 select BOOT_ELF32
>> 864 select HAVE_PATA_PLATFORM
>> 865 select SIBYTE_SB1250
>> 866 select SWAP_IO_SPACE
>> 867 select SYS_HAS_CPU_SB1
>> 868 select SYS_SUPPORTS_BIG_ENDIAN
>> 869 select SYS_SUPPORTS_HIGHMEM
>> 870 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 871 select ZONE_DMA32 if 64BIT
>> 872
>> 873 config SIBYTE_SENTOSA
>> 874 bool "Sibyte BCM91250E-Sentosa"
>> 875 select BOOT_ELF32
>> 876 select SIBYTE_SB1250
>> 877 select SWAP_IO_SPACE
>> 878 select SYS_HAS_CPU_SB1
>> 879 select SYS_SUPPORTS_BIG_ENDIAN
>> 880 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 881 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 882
>> 883 config SIBYTE_BIGSUR
>> 884 bool "Sibyte BCM91480B-BigSur"
>> 885 select BOOT_ELF32
>> 886 select NR_CPUS_DEFAULT_4
>> 887 select SIBYTE_BCM1x80
>> 888 select SWAP_IO_SPACE
>> 889 select SYS_HAS_CPU_SB1
>> 890 select SYS_SUPPORTS_BIG_ENDIAN
>> 891 select SYS_SUPPORTS_HIGHMEM
>> 892 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 893 select ZONE_DMA32 if 64BIT
>> 894 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 895
>> 896 config SNI_RM
>> 897 bool "SNI RM200/300/400"
>> 898 select ARC_MEMORY
>> 899 select ARC_PROMLIB
>> 900 select FW_ARC if CPU_LITTLE_ENDIAN
>> 901 select FW_ARC32 if CPU_LITTLE_ENDIAN
>> 902 select FW_SNIPROM if CPU_BIG_ENDIAN
>> 903 select ARCH_MAY_HAVE_PC_FDC
>> 904 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 905 select ARCH_MIGHT_HAVE_PC_SERIO
>> 906 select BOOT_ELF32
>> 907 select CEVT_R4K
>> 908 select CSRC_R4K
>> 909 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 910 select DMA_NONCOHERENT
>> 911 select GENERIC_ISA_DMA
>> 912 select HAVE_EISA
>> 913 select HAVE_PCSPKR_PLATFORM
>> 914 select HAVE_PCI
>> 915 select IRQ_MIPS_CPU
>> 916 select I8253
>> 917 select I8259
>> 918 select ISA
>> 919 select MIPS_L1_CACHE_SHIFT_6
>> 920 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
>> 921 select SYS_HAS_CPU_R4X00
>> 922 select SYS_HAS_CPU_R5000
>> 923 select SYS_HAS_CPU_R10000
>> 924 select R5000_CPU_SCACHE
>> 925 select SYS_HAS_EARLY_PRINTK
>> 926 select SYS_SUPPORTS_32BIT_KERNEL
>> 927 select SYS_SUPPORTS_64BIT_KERNEL
>> 928 select SYS_SUPPORTS_BIG_ENDIAN
>> 929 select SYS_SUPPORTS_HIGHMEM
>> 930 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 931 select WAR_R4600_V2_HIT_CACHEOP
>> 932 help
>> 933 The SNI RM200/300/400 are MIPS-based machines manufactured by
>> 934 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 935 Technology and now in turn merged with Fujitsu. Say Y here to
>> 936 support this machine type.
>> 937
>> 938 config MACH_TX49XX
>> 939 bool "Toshiba TX49 series based machines"
>> 940 select WAR_TX49XX_ICACHE_INDEX_INV
>> 941
>> 942 config MIKROTIK_RB532
>> 943 bool "Mikrotik RB532 boards"
>> 944 select CEVT_R4K
>> 945 select CSRC_R4K
>> 946 select DMA_NONCOHERENT
>> 947 select HAVE_PCI
>> 948 select IRQ_MIPS_CPU
>> 949 select SYS_HAS_CPU_MIPS32_R1
>> 950 select SYS_SUPPORTS_32BIT_KERNEL
>> 951 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 952 select SWAP_IO_SPACE
>> 953 select BOOT_RAW
>> 954 select GPIOLIB
>> 955 select MIPS_L1_CACHE_SHIFT_4
>> 956 help
>> 957 Support the Mikrotik(tm) RouterBoard 532 series,
>> 958 based on the IDT RC32434 SoC.
>> 959
>> 960 config CAVIUM_OCTEON_SOC
>> 961 bool "Cavium Networks Octeon SoC based boards"
>> 962 select CEVT_R4K
>> 963 select ARCH_HAS_PHYS_TO_DMA
>> 964 select HAVE_RAPIDIO
>> 965 select PHYS_ADDR_T_64BIT
>> 966 select SYS_SUPPORTS_64BIT_KERNEL
>> 967 select SYS_SUPPORTS_BIG_ENDIAN
>> 968 select EDAC_SUPPORT
>> 969 select EDAC_ATOMIC_SCRUB
>> 970 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 971 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
>> 972 select SYS_HAS_EARLY_PRINTK
>> 973 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 974 select HAVE_PCI
>> 975 select HAVE_PLAT_DELAY
>> 976 select HAVE_PLAT_FW_INIT_CMDLINE
>> 977 select HAVE_PLAT_MEMCPY
>> 978 select ZONE_DMA32
>> 979 select GPIOLIB
>> 980 select USE_OF
>> 981 select ARCH_SPARSEMEM_ENABLE
>> 982 select SYS_SUPPORTS_SMP
>> 983 select NR_CPUS_DEFAULT_64
>> 984 select MIPS_NR_CPU_NR_MAP_1024
>> 985 select BUILTIN_DTB
>> 986 select MTD
>> 987 select MTD_COMPLEX_MAPPINGS
>> 988 select SWIOTLB
>> 989 select SYS_SUPPORTS_RELOCATABLE
>> 990 help
>> 991 This option supports all of the Octeon reference boards from Cavium
>> 992 Networks. It builds a kernel that dynamically determines the Octeon
>> 993 CPU type and supports all known board reference implementations.
>> 994 Some of the supported boards are:
>> 995 EBT3000
>> 996 EBH3000
>> 997 EBH3100
>> 998 Thunder
>> 999 Kodama
>> 1000 Hikari
>> 1001 Say Y here for most Octeon reference boards.
>> 1002
>> 1003 endchoice
>> 1004
>> 1005 config FIT_IMAGE_FDT_EPM5
>> 1006 bool "Include FDT for Mobileye EyeQ5 development platforms"
>> 1007 depends on MACH_EYEQ5
>> 1008 default n
>> 1009 help
>> 1010 Enable this to include the FDT for the EyeQ5 development platforms
>> 1011 from Mobileye in the FIT kernel image.
>> 1012 This requires u-boot on the platform.
>> 1013
>> 1014 source "arch/mips/alchemy/Kconfig"
>> 1015 source "arch/mips/ath25/Kconfig"
>> 1016 source "arch/mips/ath79/Kconfig"
>> 1017 source "arch/mips/bcm47xx/Kconfig"
>> 1018 source "arch/mips/bcm63xx/Kconfig"
>> 1019 source "arch/mips/bmips/Kconfig"
>> 1020 source "arch/mips/generic/Kconfig"
>> 1021 source "arch/mips/ingenic/Kconfig"
>> 1022 source "arch/mips/jazz/Kconfig"
>> 1023 source "arch/mips/lantiq/Kconfig"
>> 1024 source "arch/mips/mobileye/Kconfig"
>> 1025 source "arch/mips/pic32/Kconfig"
>> 1026 source "arch/mips/ralink/Kconfig"
>> 1027 source "arch/mips/sgi-ip27/Kconfig"
>> 1028 source "arch/mips/sibyte/Kconfig"
>> 1029 source "arch/mips/txx9/Kconfig"
>> 1030 source "arch/mips/cavium-octeon/Kconfig"
>> 1031 source "arch/mips/loongson2ef/Kconfig"
>> 1032 source "arch/mips/loongson32/Kconfig"
>> 1033 source "arch/mips/loongson64/Kconfig"
>> 1034
>> 1035 endmenu
77 1036
78 config GENERIC_HWEIGHT 1037 config GENERIC_HWEIGHT
79 def_bool y !! 1038 bool
>> 1039 default y
80 1040
81 config STACKTRACE_SUPPORT !! 1041 config GENERIC_CALIBRATE_DELAY
>> 1042 bool
>> 1043 default y
>> 1044
>> 1045 config SCHED_OMIT_FRAME_POINTER
>> 1046 bool
>> 1047 default y
>> 1048
>> 1049 #
>> 1050 # Select some configuration options automatically based on user selections.
>> 1051 #
>> 1052 config FW_ARC
>> 1053 bool
>> 1054
>> 1055 config ARCH_MAY_HAVE_PC_FDC
>> 1056 bool
>> 1057
>> 1058 config BOOT_RAW
>> 1059 bool
>> 1060
>> 1061 config CEVT_BCM1480
>> 1062 bool
>> 1063
>> 1064 config CEVT_DS1287
>> 1065 bool
>> 1066
>> 1067 config CEVT_GT641XX
>> 1068 bool
>> 1069
>> 1070 config CEVT_R4K
>> 1071 bool
>> 1072
>> 1073 config CEVT_SB1250
>> 1074 bool
>> 1075
>> 1076 config CEVT_TXX9
>> 1077 bool
>> 1078
>> 1079 config CSRC_BCM1480
>> 1080 bool
>> 1081
>> 1082 config CSRC_IOASIC
>> 1083 bool
>> 1084
>> 1085 config CSRC_R4K
>> 1086 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
>> 1087 select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
>> 1088 bool
>> 1089
>> 1090 config CSRC_SB1250
>> 1091 bool
>> 1092
>> 1093 config MIPS_CLOCK_VSYSCALL
>> 1094 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
>> 1095
>> 1096 config GPIO_TXX9
>> 1097 select GPIOLIB
>> 1098 bool
>> 1099
>> 1100 config FW_CFE
>> 1101 bool
>> 1102
>> 1103 config ARCH_SUPPORTS_UPROBES
82 def_bool y 1104 def_bool y
83 select STACKTRACE <<
84 1105
85 menu "ARC Architecture Configuration" !! 1106 config DMA_NONCOHERENT
>> 1107 bool
>> 1108 #
>> 1109 # MIPS allows mixing "slightly different" Cacheability and Coherency
>> 1110 # Attribute bits. It is believed that the uncached access through
>> 1111 # KSEG1 and the implementation specific "uncached accelerated" used
>> 1112 # by pgprot_writcombine can be mixed, and the latter sometimes provides
>> 1113 # significant advantages.
>> 1114 #
>> 1115 select ARCH_HAS_SETUP_DMA_OPS
>> 1116 select ARCH_HAS_DMA_WRITE_COMBINE
>> 1117 select ARCH_HAS_DMA_PREP_COHERENT
>> 1118 select ARCH_HAS_SYNC_DMA_FOR_CPU
>> 1119 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>> 1120 select ARCH_HAS_DMA_SET_UNCACHED
>> 1121 select DMA_NONCOHERENT_MMAP
>> 1122 select NEED_DMA_MAP_STATE
>> 1123
>> 1124 config SYS_HAS_EARLY_PRINTK
>> 1125 bool
86 1126
87 menu "ARC Platform/SoC/Board" !! 1127 config SYS_SUPPORTS_HOTPLUG_CPU
>> 1128 bool
88 1129
89 source "arch/arc/plat-tb10x/Kconfig" !! 1130 config MIPS_BONITO64
90 source "arch/arc/plat-axs10x/Kconfig" !! 1131 bool
91 source "arch/arc/plat-hsdk/Kconfig" <<
92 1132
93 endmenu !! 1133 config MIPS_MSC
>> 1134 bool
94 1135
95 choice !! 1136 config SYNC_R4K
96 prompt "ARC Instruction Set" !! 1137 bool
97 default ISA_ARCV2 !! 1138
>> 1139 config NO_IOPORT_MAP
>> 1140 def_bool n
>> 1141
>> 1142 config GENERIC_CSUM
>> 1143 def_bool CPU_NO_LOAD_STORE_LR
>> 1144
>> 1145 config GENERIC_ISA_DMA
>> 1146 bool
>> 1147 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
>> 1148 select ISA_DMA_API
>> 1149
>> 1150 config GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 1151 bool
>> 1152 select GENERIC_ISA_DMA
>> 1153
>> 1154 config HAVE_PLAT_DELAY
>> 1155 bool
>> 1156
>> 1157 config HAVE_PLAT_FW_INIT_CMDLINE
>> 1158 bool
98 1159
99 config ISA_ARCOMPACT !! 1160 config HAVE_PLAT_MEMCPY
100 bool "ARCompact ISA" !! 1161 bool
101 select CPU_NO_EFFICIENT_FFS !! 1162
>> 1163 config ISA_DMA_API
>> 1164 bool
>> 1165
>> 1166 config SYS_SUPPORTS_RELOCATABLE
>> 1167 bool
102 help 1168 help
103 The original ARC ISA of ARC600/700 c !! 1169 Selected if the platform supports relocating the kernel.
>> 1170 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
>> 1171 to allow access to command line and entropy sources.
104 1172
105 config ISA_ARCV2 !! 1173 #
106 bool "ARC ISA v2" !! 1174 # Endianness selection. Sufficiently obscure so many users don't know what to
107 select ARC_TIMERS_64BIT !! 1175 # answer,so we try hard to limit the available choices. Also the use of a
>> 1176 # choice statement should be more obvious to the user.
>> 1177 #
>> 1178 choice
>> 1179 prompt "Endianness selection"
108 help 1180 help
109 ISA for the Next Generation ARC-HS c !! 1181 Some MIPS machines can be configured for either little or big endian
>> 1182 byte order. These modes require different kernels and a different
>> 1183 Linux distribution. In general there is one preferred byteorder for a
>> 1184 particular system but some systems are just as commonly used in the
>> 1185 one or the other endianness.
>> 1186
>> 1187 config CPU_BIG_ENDIAN
>> 1188 bool "Big endian"
>> 1189 depends on SYS_SUPPORTS_BIG_ENDIAN
>> 1190
>> 1191 config CPU_LITTLE_ENDIAN
>> 1192 bool "Little endian"
>> 1193 depends on SYS_SUPPORTS_LITTLE_ENDIAN
110 1194
111 endchoice 1195 endchoice
112 1196
113 menu "ARC CPU Configuration" !! 1197 config EXPORT_UASM
>> 1198 bool
114 1199
115 choice !! 1200 config SYS_SUPPORTS_APM_EMULATION
116 prompt "ARC Core" !! 1201 bool
117 default ARC_CPU_770 if ISA_ARCOMPACT <<
118 default ARC_CPU_HS if ISA_ARCV2 <<
119 <<
120 config ARC_CPU_770 <<
121 bool "ARC770" <<
122 depends on ISA_ARCOMPACT <<
123 select ARC_HAS_SWAPE <<
124 help <<
125 Support for ARC770 core introduced w <<
126 This core has a bunch of cool new fe <<
127 -MMU-v3: Variable Page Sz (4k, 8k, 1 <<
128 Shared Address Spaces (for <<
129 -Caches: New Prog Model, Region Flus <<
130 -Insns: endian swap, load-locked/sto <<
131 <<
132 config ARC_CPU_HS <<
133 bool "ARC-HS" <<
134 depends on ISA_ARCV2 <<
135 help <<
136 Support for ARC HS38x Cores based on <<
137 The notable features are: <<
138 - SMP configurations of up to 4 co <<
139 - Optional L2 Cache and IO-Coheren <<
140 - Revised Interrupt Architecture ( <<
141 auto stack switch, auto regfil <<
142 - MMUv4 (PIPT dcache, Huge Pages) <<
143 - Instructions for <<
144 * 64bit load/store: LDD, STD <<
145 * Hardware assisted divide/rem <<
146 * Function prologue/epilogue: <<
147 * IRQ enable/disable: CLRI, SE <<
148 * pop count: FFS, FLS <<
149 * SETcc, BMSKN, XBFU... <<
150 1202
151 endchoice !! 1203 config SYS_SUPPORTS_BIG_ENDIAN
>> 1204 bool
152 1205
153 config ARC_TUNE_MCPU !! 1206 config SYS_SUPPORTS_LITTLE_ENDIAN
154 string "Override default -mcpu compile !! 1207 bool
155 default "" <<
156 help <<
157 Override default -mcpu=xxx compiler <<
158 the ISA version) with the specified <<
159 NOTE: If specified flag isn't suppor <<
160 ISA default value will be used as a <<
161 1208
162 config CPU_BIG_ENDIAN !! 1209 config MIPS_HUGE_TLB_SUPPORT
163 bool "Enable Big Endian Mode" !! 1210 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
164 help <<
165 Build kernel for Big Endian Mode of <<
166 1211
167 config SMP !! 1212 config IRQ_TXX9
168 bool "Symmetric Multi-Processing" !! 1213 bool
169 select ARC_MCIP if ISA_ARCV2 <<
170 help <<
171 This enables support for systems wit <<
172 1214
173 if SMP !! 1215 config IRQ_GT641XX
>> 1216 bool
174 1217
175 config NR_CPUS !! 1218 config PCI_GT64XXX_PCI0
176 int "Maximum number of CPUs (2-4096)" !! 1219 bool
177 range 2 4096 !! 1220
178 default "4" !! 1221 config PCI_XTALK_BRIDGE
179 !! 1222 bool
180 config ARC_SMP_HALT_ON_RESET !! 1223
181 bool "Enable Halt-on-reset boot mode" !! 1224 config NO_EXCEPT_FILL
182 help !! 1225 bool
183 In SMP configuration cores can be co !! 1226
184 or they could all start at same time !! 1227 config MIPS_SPRAM
185 masters are parked until Master kick !! 1228 bool
186 at designated entry point. For other !! 1229
187 entry point and spin wait for Master !! 1230 config SWAP_IO_SPACE
188 !! 1231 bool
189 endif #SMP !! 1232
190 !! 1233 config SGI_HAS_INDYDOG
191 config ARC_MCIP !! 1234 bool
192 bool "ARConnect Multicore IP (MCIP) Su !! 1235
193 depends on ISA_ARCV2 !! 1236 config SGI_HAS_HAL2
194 default y if SMP !! 1237 bool
>> 1238
>> 1239 config SGI_HAS_SEEQ
>> 1240 bool
>> 1241
>> 1242 config SGI_HAS_WD93
>> 1243 bool
>> 1244
>> 1245 config SGI_HAS_ZILOG
>> 1246 bool
>> 1247
>> 1248 config SGI_HAS_I8042
>> 1249 bool
>> 1250
>> 1251 config DEFAULT_SGI_PARTITION
>> 1252 bool
>> 1253
>> 1254 config FW_ARC32
>> 1255 bool
>> 1256
>> 1257 config FW_SNIPROM
>> 1258 bool
>> 1259
>> 1260 config BOOT_ELF32
>> 1261 bool
>> 1262
>> 1263 config MIPS_L1_CACHE_SHIFT_4
>> 1264 bool
>> 1265
>> 1266 config MIPS_L1_CACHE_SHIFT_5
>> 1267 bool
>> 1268
>> 1269 config MIPS_L1_CACHE_SHIFT_6
>> 1270 bool
>> 1271
>> 1272 config MIPS_L1_CACHE_SHIFT_7
>> 1273 bool
>> 1274
>> 1275 config MIPS_L1_CACHE_SHIFT
>> 1276 int
>> 1277 default "7" if MIPS_L1_CACHE_SHIFT_7
>> 1278 default "6" if MIPS_L1_CACHE_SHIFT_6
>> 1279 default "5" if MIPS_L1_CACHE_SHIFT_5
>> 1280 default "4" if MIPS_L1_CACHE_SHIFT_4
>> 1281 default "5"
>> 1282
>> 1283 config ARC_CMDLINE_ONLY
>> 1284 bool
>> 1285
>> 1286 config ARC_CONSOLE
>> 1287 bool "ARC console support"
>> 1288 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
>> 1289
>> 1290 config ARC_MEMORY
>> 1291 bool
>> 1292
>> 1293 config ARC_PROMLIB
>> 1294 bool
>> 1295
>> 1296 config FW_ARC64
>> 1297 bool
>> 1298
>> 1299 config BOOT_ELF64
>> 1300 bool
>> 1301
>> 1302 menu "CPU selection"
>> 1303
>> 1304 choice
>> 1305 prompt "CPU type"
>> 1306 default CPU_R4X00
>> 1307
>> 1308 config CPU_LOONGSON64
>> 1309 bool "Loongson 64-bit CPU"
>> 1310 depends on SYS_HAS_CPU_LOONGSON64
>> 1311 select ARCH_HAS_PHYS_TO_DMA
>> 1312 select CPU_MIPSR2
>> 1313 select CPU_HAS_PREFETCH
>> 1314 select CPU_SUPPORTS_64BIT_KERNEL
>> 1315 select CPU_SUPPORTS_HIGHMEM
>> 1316 select CPU_SUPPORTS_HUGEPAGES
>> 1317 select CPU_SUPPORTS_MSA
>> 1318 select CPU_SUPPORTS_VZ
>> 1319 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
>> 1320 select CPU_MIPSR2_IRQ_VI
>> 1321 select DMA_NONCOHERENT
>> 1322 select WEAK_ORDERING
>> 1323 select WEAK_REORDERING_BEYOND_LLSC
>> 1324 select MIPS_ASID_BITS_VARIABLE
>> 1325 select MIPS_PGD_C0_CONTEXT
>> 1326 select MIPS_L1_CACHE_SHIFT_6
>> 1327 select MIPS_FP_SUPPORT
>> 1328 select GPIOLIB
>> 1329 select SWIOTLB
>> 1330 help
>> 1331 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
>> 1332 cores implements the MIPS64R2 instruction set with many extensions,
>> 1333 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
>> 1334 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
>> 1335 Loongson-2E/2F is not covered here and will be removed in future.
>> 1336
>> 1337 config CPU_LOONGSON2E
>> 1338 bool "Loongson 2E"
>> 1339 depends on SYS_HAS_CPU_LOONGSON2E
>> 1340 select CPU_LOONGSON2EF
>> 1341 help
>> 1342 The Loongson 2E processor implements the MIPS III instruction set
>> 1343 with many extensions.
>> 1344
>> 1345 It has an internal FPGA northbridge, which is compatible to
>> 1346 bonito64.
>> 1347
>> 1348 config CPU_LOONGSON2F
>> 1349 bool "Loongson 2F"
>> 1350 depends on SYS_HAS_CPU_LOONGSON2F
>> 1351 select CPU_LOONGSON2EF
>> 1352 help
>> 1353 The Loongson 2F processor implements the MIPS III instruction set
>> 1354 with many extensions.
>> 1355
>> 1356 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
>> 1357 have a similar programming interface with FPGA northbridge used in
>> 1358 Loongson2E.
>> 1359
>> 1360 config CPU_LOONGSON1B
>> 1361 bool "Loongson 1B"
>> 1362 depends on SYS_HAS_CPU_LOONGSON1B
>> 1363 select CPU_LOONGSON32
>> 1364 select LEDS_GPIO_REGISTER
>> 1365 help
>> 1366 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
>> 1367 Release 1 instruction set and part of the MIPS32 Release 2
>> 1368 instruction set.
>> 1369
>> 1370 config CPU_LOONGSON1C
>> 1371 bool "Loongson 1C"
>> 1372 depends on SYS_HAS_CPU_LOONGSON1C
>> 1373 select CPU_LOONGSON32
>> 1374 select LEDS_GPIO_REGISTER
>> 1375 help
>> 1376 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
>> 1377 Release 1 instruction set and part of the MIPS32 Release 2
>> 1378 instruction set.
>> 1379
>> 1380 config CPU_MIPS32_R1
>> 1381 bool "MIPS32 Release 1"
>> 1382 depends on SYS_HAS_CPU_MIPS32_R1
>> 1383 select CPU_HAS_PREFETCH
>> 1384 select CPU_SUPPORTS_32BIT_KERNEL
>> 1385 select CPU_SUPPORTS_HIGHMEM
>> 1386 help
>> 1387 Choose this option to build a kernel for release 1 or later of the
>> 1388 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1389 MIPS processor are based on a MIPS32 processor. If you know the
>> 1390 specific type of processor in your system, choose those that one
>> 1391 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1392 Release 2 of the MIPS32 architecture is available since several
>> 1393 years so chances are you even have a MIPS32 Release 2 processor
>> 1394 in which case you should choose CPU_MIPS32_R2 instead for better
>> 1395 performance.
>> 1396
>> 1397 config CPU_MIPS32_R2
>> 1398 bool "MIPS32 Release 2"
>> 1399 depends on SYS_HAS_CPU_MIPS32_R2
>> 1400 select CPU_HAS_PREFETCH
>> 1401 select CPU_SUPPORTS_32BIT_KERNEL
>> 1402 select CPU_SUPPORTS_HIGHMEM
>> 1403 select CPU_SUPPORTS_MSA
>> 1404 help
>> 1405 Choose this option to build a kernel for release 2 or later of the
>> 1406 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1407 MIPS processor are based on a MIPS32 processor. If you know the
>> 1408 specific type of processor in your system, choose those that one
>> 1409 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1410
>> 1411 config CPU_MIPS32_R5
>> 1412 bool "MIPS32 Release 5"
>> 1413 depends on SYS_HAS_CPU_MIPS32_R5
>> 1414 select CPU_HAS_PREFETCH
>> 1415 select CPU_SUPPORTS_32BIT_KERNEL
>> 1416 select CPU_SUPPORTS_HIGHMEM
>> 1417 select CPU_SUPPORTS_MSA
>> 1418 select CPU_SUPPORTS_VZ
>> 1419 select MIPS_O32_FP64_SUPPORT
>> 1420 help
>> 1421 Choose this option to build a kernel for release 5 or later of the
>> 1422 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1423 family, are based on a MIPS32r5 processor. If you own an older
>> 1424 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1425
>> 1426 config CPU_MIPS32_R6
>> 1427 bool "MIPS32 Release 6"
>> 1428 depends on SYS_HAS_CPU_MIPS32_R6
>> 1429 select CPU_HAS_PREFETCH
>> 1430 select CPU_NO_LOAD_STORE_LR
>> 1431 select CPU_SUPPORTS_32BIT_KERNEL
>> 1432 select CPU_SUPPORTS_HIGHMEM
>> 1433 select CPU_SUPPORTS_MSA
>> 1434 select CPU_SUPPORTS_VZ
>> 1435 select MIPS_O32_FP64_SUPPORT
>> 1436 help
>> 1437 Choose this option to build a kernel for release 6 or later of the
>> 1438 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1439 family, are based on a MIPS32r6 processor. If you own an older
>> 1440 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1441
>> 1442 config CPU_MIPS64_R1
>> 1443 bool "MIPS64 Release 1"
>> 1444 depends on SYS_HAS_CPU_MIPS64_R1
>> 1445 select CPU_HAS_PREFETCH
>> 1446 select CPU_SUPPORTS_32BIT_KERNEL
>> 1447 select CPU_SUPPORTS_64BIT_KERNEL
>> 1448 select CPU_SUPPORTS_HIGHMEM
>> 1449 select CPU_SUPPORTS_HUGEPAGES
>> 1450 help
>> 1451 Choose this option to build a kernel for release 1 or later of the
>> 1452 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1453 MIPS processor are based on a MIPS64 processor. If you know the
>> 1454 specific type of processor in your system, choose those that one
>> 1455 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1456 Release 2 of the MIPS64 architecture is available since several
>> 1457 years so chances are you even have a MIPS64 Release 2 processor
>> 1458 in which case you should choose CPU_MIPS64_R2 instead for better
>> 1459 performance.
>> 1460
>> 1461 config CPU_MIPS64_R2
>> 1462 bool "MIPS64 Release 2"
>> 1463 depends on SYS_HAS_CPU_MIPS64_R2
>> 1464 select CPU_HAS_PREFETCH
>> 1465 select CPU_SUPPORTS_32BIT_KERNEL
>> 1466 select CPU_SUPPORTS_64BIT_KERNEL
>> 1467 select CPU_SUPPORTS_HIGHMEM
>> 1468 select CPU_SUPPORTS_HUGEPAGES
>> 1469 select CPU_SUPPORTS_MSA
>> 1470 help
>> 1471 Choose this option to build a kernel for release 2 or later of the
>> 1472 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1473 MIPS processor are based on a MIPS64 processor. If you know the
>> 1474 specific type of processor in your system, choose those that one
>> 1475 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1476
>> 1477 config CPU_MIPS64_R5
>> 1478 bool "MIPS64 Release 5"
>> 1479 depends on SYS_HAS_CPU_MIPS64_R5
>> 1480 select CPU_HAS_PREFETCH
>> 1481 select CPU_SUPPORTS_32BIT_KERNEL
>> 1482 select CPU_SUPPORTS_64BIT_KERNEL
>> 1483 select CPU_SUPPORTS_HIGHMEM
>> 1484 select CPU_SUPPORTS_HUGEPAGES
>> 1485 select CPU_SUPPORTS_MSA
>> 1486 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1487 select CPU_SUPPORTS_VZ
>> 1488 help
>> 1489 Choose this option to build a kernel for release 5 or later of the
>> 1490 MIPS64 architecture. This is a intermediate MIPS architecture
>> 1491 release partly implementing release 6 features. Though there is no
>> 1492 any hardware known to be based on this release.
>> 1493
>> 1494 config CPU_MIPS64_R6
>> 1495 bool "MIPS64 Release 6"
>> 1496 depends on SYS_HAS_CPU_MIPS64_R6
>> 1497 select CPU_HAS_PREFETCH
>> 1498 select CPU_NO_LOAD_STORE_LR
>> 1499 select CPU_SUPPORTS_32BIT_KERNEL
>> 1500 select CPU_SUPPORTS_64BIT_KERNEL
>> 1501 select CPU_SUPPORTS_HIGHMEM
>> 1502 select CPU_SUPPORTS_HUGEPAGES
>> 1503 select CPU_SUPPORTS_MSA
>> 1504 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1505 select CPU_SUPPORTS_VZ
>> 1506 help
>> 1507 Choose this option to build a kernel for release 6 or later of the
>> 1508 MIPS64 architecture. New MIPS processors, starting with the Warrior
>> 1509 family, are based on a MIPS64r6 processor. If you own an older
>> 1510 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
>> 1511
>> 1512 config CPU_P5600
>> 1513 bool "MIPS Warrior P5600"
>> 1514 depends on SYS_HAS_CPU_P5600
>> 1515 select CPU_HAS_PREFETCH
>> 1516 select CPU_SUPPORTS_32BIT_KERNEL
>> 1517 select CPU_SUPPORTS_HIGHMEM
>> 1518 select CPU_SUPPORTS_MSA
>> 1519 select CPU_SUPPORTS_CPUFREQ
>> 1520 select CPU_SUPPORTS_VZ
>> 1521 select CPU_MIPSR2_IRQ_VI
>> 1522 select CPU_MIPSR2_IRQ_EI
>> 1523 select MIPS_O32_FP64_SUPPORT
>> 1524 help
>> 1525 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
>> 1526 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
>> 1527 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
>> 1528 level features like up to six P5600 calculation cores, CM2 with L2
>> 1529 cache, IOCU/IOMMU (though might be unused depending on the system-
>> 1530 specific IP core configuration), GIC, CPC, virtualisation module,
>> 1531 eJTAG and PDtrace.
>> 1532
>> 1533 config CPU_R3000
>> 1534 bool "R3000"
>> 1535 depends on SYS_HAS_CPU_R3000
>> 1536 select CPU_HAS_WB
>> 1537 select CPU_R3K_TLB
>> 1538 select CPU_SUPPORTS_32BIT_KERNEL
>> 1539 select CPU_SUPPORTS_HIGHMEM
>> 1540 help
>> 1541 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 1542 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 1543 *not* work on R4000 machines and vice versa. However, since most
>> 1544 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 1545 might be a safe bet. If the resulting kernel does not work,
>> 1546 try to recompile with R3000.
>> 1547
>> 1548 config CPU_R4300
>> 1549 bool "R4300"
>> 1550 depends on SYS_HAS_CPU_R4300
>> 1551 select CPU_SUPPORTS_32BIT_KERNEL
>> 1552 select CPU_SUPPORTS_64BIT_KERNEL
>> 1553 help
>> 1554 MIPS Technologies R4300-series processors.
>> 1555
>> 1556 config CPU_R4X00
>> 1557 bool "R4x00"
>> 1558 depends on SYS_HAS_CPU_R4X00
>> 1559 select CPU_SUPPORTS_32BIT_KERNEL
>> 1560 select CPU_SUPPORTS_64BIT_KERNEL
>> 1561 select CPU_SUPPORTS_HUGEPAGES
>> 1562 help
>> 1563 MIPS Technologies R4000-series processors other than 4300, including
>> 1564 the R4000, R4400, R4600, and 4700.
>> 1565
>> 1566 config CPU_TX49XX
>> 1567 bool "R49XX"
>> 1568 depends on SYS_HAS_CPU_TX49XX
>> 1569 select CPU_HAS_PREFETCH
>> 1570 select CPU_SUPPORTS_32BIT_KERNEL
>> 1571 select CPU_SUPPORTS_64BIT_KERNEL
>> 1572 select CPU_SUPPORTS_HUGEPAGES
>> 1573
>> 1574 config CPU_R5000
>> 1575 bool "R5000"
>> 1576 depends on SYS_HAS_CPU_R5000
>> 1577 select CPU_SUPPORTS_32BIT_KERNEL
>> 1578 select CPU_SUPPORTS_64BIT_KERNEL
>> 1579 select CPU_SUPPORTS_HUGEPAGES
>> 1580 help
>> 1581 MIPS Technologies R5000-series processors other than the Nevada.
>> 1582
>> 1583 config CPU_R5500
>> 1584 bool "R5500"
>> 1585 depends on SYS_HAS_CPU_R5500
>> 1586 select CPU_SUPPORTS_32BIT_KERNEL
>> 1587 select CPU_SUPPORTS_64BIT_KERNEL
>> 1588 select CPU_SUPPORTS_HUGEPAGES
>> 1589 help
>> 1590 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
>> 1591 instruction set.
>> 1592
>> 1593 config CPU_NEVADA
>> 1594 bool "RM52xx"
>> 1595 depends on SYS_HAS_CPU_NEVADA
>> 1596 select CPU_SUPPORTS_32BIT_KERNEL
>> 1597 select CPU_SUPPORTS_64BIT_KERNEL
>> 1598 select CPU_SUPPORTS_HUGEPAGES
>> 1599 help
>> 1600 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
>> 1601
>> 1602 config CPU_R10000
>> 1603 bool "R10000"
>> 1604 depends on SYS_HAS_CPU_R10000
>> 1605 select CPU_HAS_PREFETCH
>> 1606 select CPU_SUPPORTS_32BIT_KERNEL
>> 1607 select CPU_SUPPORTS_64BIT_KERNEL
>> 1608 select CPU_SUPPORTS_HIGHMEM
>> 1609 select CPU_SUPPORTS_HUGEPAGES
>> 1610 help
>> 1611 MIPS Technologies R10000-series processors.
>> 1612
>> 1613 config CPU_RM7000
>> 1614 bool "RM7000"
>> 1615 depends on SYS_HAS_CPU_RM7000
>> 1616 select CPU_HAS_PREFETCH
>> 1617 select CPU_SUPPORTS_32BIT_KERNEL
>> 1618 select CPU_SUPPORTS_64BIT_KERNEL
>> 1619 select CPU_SUPPORTS_HIGHMEM
>> 1620 select CPU_SUPPORTS_HUGEPAGES
>> 1621
>> 1622 config CPU_SB1
>> 1623 bool "SB1"
>> 1624 depends on SYS_HAS_CPU_SB1
>> 1625 select CPU_SUPPORTS_32BIT_KERNEL
>> 1626 select CPU_SUPPORTS_64BIT_KERNEL
>> 1627 select CPU_SUPPORTS_HIGHMEM
>> 1628 select CPU_SUPPORTS_HUGEPAGES
>> 1629 select WEAK_ORDERING
>> 1630
>> 1631 config CPU_CAVIUM_OCTEON
>> 1632 bool "Cavium Octeon processor"
>> 1633 depends on SYS_HAS_CPU_CAVIUM_OCTEON
>> 1634 select CPU_HAS_PREFETCH
>> 1635 select CPU_SUPPORTS_64BIT_KERNEL
>> 1636 select HAVE_PAGE_SIZE_8KB if !MIPS_VA_BITS_48
>> 1637 select HAVE_PAGE_SIZE_32KB if !MIPS_VA_BITS_48
>> 1638 select WEAK_ORDERING
>> 1639 select CPU_SUPPORTS_HIGHMEM
>> 1640 select CPU_SUPPORTS_HUGEPAGES
>> 1641 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1642 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1643 select MIPS_L1_CACHE_SHIFT_7
>> 1644 select CPU_SUPPORTS_VZ
>> 1645 help
>> 1646 The Cavium Octeon processor is a highly integrated chip containing
>> 1647 many ethernet hardware widgets for networking tasks. The processor
>> 1648 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
>> 1649 Full details can be found at http://www.caviumnetworks.com.
>> 1650
>> 1651 config CPU_BMIPS
>> 1652 bool "Broadcom BMIPS"
>> 1653 depends on SYS_HAS_CPU_BMIPS
>> 1654 select CPU_MIPS32
>> 1655 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
>> 1656 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
>> 1657 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
>> 1658 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
>> 1659 select CPU_SUPPORTS_32BIT_KERNEL
>> 1660 select DMA_NONCOHERENT
>> 1661 select IRQ_MIPS_CPU
>> 1662 select SWAP_IO_SPACE
>> 1663 select WEAK_ORDERING
>> 1664 select CPU_SUPPORTS_HIGHMEM
>> 1665 select CPU_HAS_PREFETCH
>> 1666 select CPU_SUPPORTS_CPUFREQ
>> 1667 select MIPS_EXTERNAL_TIMER
>> 1668 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
195 help 1669 help
196 This IP block enables SMP in ARC-HS3 !! 1670 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
197 It provides for cross-core interrupt <<
198 hardware semaphores, shared memory,. <<
199 1671
200 menuconfig ARC_CACHE !! 1672 endchoice
201 bool "Enable Cache Support" <<
202 default y <<
203 1673
204 if ARC_CACHE !! 1674 config LOONGSON3_ENHANCEMENT
>> 1675 bool "New Loongson-3 CPU Enhancements"
>> 1676 default n
>> 1677 depends on CPU_LOONGSON64
>> 1678 help
>> 1679 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
>> 1680 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
>> 1681 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
>> 1682 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
>> 1683 Fast TLB refill support, etc.
>> 1684
>> 1685 This option enable those enhancements which are not probed at run
>> 1686 time. If you want a generic kernel to run on all Loongson 3 machines,
>> 1687 please say 'N' here. If you want a high-performance kernel to run on
>> 1688 new Loongson-3 machines only, please say 'Y' here.
205 1689
206 config ARC_CACHE_LINE_SHIFT !! 1690 config CPU_LOONGSON3_WORKAROUNDS
207 int "Cache Line Length (as power of 2) !! 1691 bool "Loongson-3 LLSC Workarounds"
208 range 5 7 !! 1692 default y if SMP
209 default "6" !! 1693 depends on CPU_LOONGSON64
210 help 1694 help
211 Starting with ARC700 4.9, Cache line !! 1695 Loongson-3 processors have the llsc issues which require workarounds.
212 This option specifies "N", with Line !! 1696 Without workarounds the system may hang unexpectedly.
213 So line lengths of 32, 64, 128 are s <<
214 Linux only supports same line length <<
215 1697
216 config ARC_HAS_ICACHE !! 1698 Say Y, unless you know what you are doing.
217 bool "Use Instruction Cache" <<
218 default y <<
219 1699
220 config ARC_HAS_DCACHE !! 1700 config CPU_LOONGSON3_CPUCFG_EMULATION
221 bool "Use Data Cache" !! 1701 bool "Emulate the CPUCFG instruction on older Loongson cores"
222 default y 1702 default y
223 !! 1703 depends on CPU_LOONGSON64
224 config ARC_CACHE_PAGES !! 1704 help
225 bool "Per Page Cache Control" !! 1705 Loongson-3A R4 and newer have the CPUCFG instruction available for
>> 1706 userland to query CPU capabilities, much like CPUID on x86. This
>> 1707 option provides emulation of the instruction on older Loongson
>> 1708 cores, back to Loongson-3A1000.
>> 1709
>> 1710 If unsure, please say Y.
>> 1711
>> 1712 config CPU_MIPS32_3_5_FEATURES
>> 1713 bool "MIPS32 Release 3.5 Features"
>> 1714 depends on SYS_HAS_CPU_MIPS32_R3_5
>> 1715 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
>> 1716 CPU_P5600
>> 1717 help
>> 1718 Choose this option to build a kernel for release 2 or later of the
>> 1719 MIPS32 architecture including features from the 3.5 release such as
>> 1720 support for Enhanced Virtual Addressing (EVA).
>> 1721
>> 1722 config CPU_MIPS32_3_5_EVA
>> 1723 bool "Enhanced Virtual Addressing (EVA)"
>> 1724 depends on CPU_MIPS32_3_5_FEATURES
>> 1725 select EVA
226 default y 1726 default y
227 depends on ARC_HAS_ICACHE || ARC_HAS_D <<
228 help 1727 help
229 This can be used to over-ride the gl !! 1728 Choose this option if you want to enable the Enhanced Virtual
230 per-page basis (but only for pages a !! 1729 Addressing (EVA) on your MIPS32 core (such as proAptiv).
231 Kernel Virtual address or User Virtu !! 1730 One of its primary benefits is an increase in the maximum size
232 TLB entries have a per-page Cache En !! 1731 of lowmem (up to 3GB). If unsure, say 'N' here.
233 Note that Global I/D ENABLE + Per Pa !! 1732
234 Global DISABLE + Per Page ENABLE won !! 1733 config CPU_MIPS32_R5_FEATURES
>> 1734 bool "MIPS32 Release 5 Features"
>> 1735 depends on SYS_HAS_CPU_MIPS32_R5
>> 1736 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
>> 1737 help
>> 1738 Choose this option to build a kernel for release 2 or later of the
>> 1739 MIPS32 architecture including features from release 5 such as
>> 1740 support for Extended Physical Addressing (XPA).
>> 1741
>> 1742 config CPU_MIPS32_R5_XPA
>> 1743 bool "Extended Physical Addressing (XPA)"
>> 1744 depends on CPU_MIPS32_R5_FEATURES
>> 1745 depends on !EVA
>> 1746 depends on !PAGE_SIZE_4KB
>> 1747 depends on SYS_SUPPORTS_HIGHMEM
>> 1748 select XPA
>> 1749 select HIGHMEM
>> 1750 select PHYS_ADDR_T_64BIT
>> 1751 default n
>> 1752 help
>> 1753 Choose this option if you want to enable the Extended Physical
>> 1754 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
>> 1755 benefit is to increase physical addressing equal to or greater
>> 1756 than 40 bits. Note that this has the side effect of turning on
>> 1757 64-bit addressing which in turn makes the PTEs 64-bit in size.
>> 1758 If unsure, say 'N' here.
>> 1759
>> 1760 if CPU_LOONGSON2F
>> 1761 config CPU_NOP_WORKAROUNDS
>> 1762 bool
235 1763
236 endif #ARC_CACHE !! 1764 config CPU_JUMP_WORKAROUNDS
>> 1765 bool
237 1766
238 config ARC_HAS_ICCM !! 1767 config CPU_LOONGSON2F_WORKAROUNDS
239 bool "Use ICCM" !! 1768 bool "Loongson 2F Workarounds"
>> 1769 default y
>> 1770 select CPU_NOP_WORKAROUNDS
>> 1771 select CPU_JUMP_WORKAROUNDS
240 help 1772 help
241 Single Cycle RAMS to store Fast Path !! 1773 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
>> 1774 require workarounds. Without workarounds the system may hang
>> 1775 unexpectedly. For more information please refer to the gas
>> 1776 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
>> 1777
>> 1778 Loongson 2F03 and later have fixed these issues and no workarounds
>> 1779 are needed. The workarounds have no significant side effect on them
>> 1780 but may decrease the performance of the system so this option should
>> 1781 be disabled unless the kernel is intended to be run on 2F01 or 2F02
>> 1782 systems.
242 1783
243 config ARC_ICCM_SZ !! 1784 If unsure, please say Y.
244 int "ICCM Size in KB" !! 1785 endif # CPU_LOONGSON2F
245 default "64" <<
246 depends on ARC_HAS_ICCM <<
247 1786
248 config ARC_HAS_DCCM !! 1787 config SYS_SUPPORTS_ZBOOT
249 bool "Use DCCM" !! 1788 bool
250 help !! 1789 select HAVE_KERNEL_GZIP
251 Single Cycle RAMS to store Fast Path !! 1790 select HAVE_KERNEL_BZIP2
>> 1791 select HAVE_KERNEL_LZ4
>> 1792 select HAVE_KERNEL_LZMA
>> 1793 select HAVE_KERNEL_LZO
>> 1794 select HAVE_KERNEL_XZ
>> 1795 select HAVE_KERNEL_ZSTD
252 1796
253 config ARC_DCCM_SZ !! 1797 config SYS_SUPPORTS_ZBOOT_UART16550
254 int "DCCM Size in KB" !! 1798 bool
255 default "64" !! 1799 select SYS_SUPPORTS_ZBOOT
256 depends on ARC_HAS_DCCM <<
257 1800
258 config ARC_DCCM_BASE !! 1801 config SYS_SUPPORTS_ZBOOT_UART_PROM
259 hex "DCCM map address" !! 1802 bool
260 default "0xA0000000" !! 1803 select SYS_SUPPORTS_ZBOOT
261 depends on ARC_HAS_DCCM <<
262 1804
263 choice !! 1805 config CPU_LOONGSON2EF
264 prompt "MMU Version" !! 1806 bool
265 default ARC_MMU_V3 if ISA_ARCOMPACT !! 1807 select CPU_SUPPORTS_32BIT_KERNEL
266 default ARC_MMU_V4 if ISA_ARCV2 !! 1808 select CPU_SUPPORTS_64BIT_KERNEL
267 !! 1809 select CPU_SUPPORTS_HIGHMEM
268 config ARC_MMU_V3 !! 1810 select CPU_SUPPORTS_HUGEPAGES
269 bool "MMU v3" <<
270 depends on ISA_ARCOMPACT <<
271 help <<
272 Introduced with ARC700 4.10: New Fea <<
273 Variable Page size (1k-16k), var JTL <<
274 Shared Address Spaces (SASID) <<
275 <<
276 config ARC_MMU_V4 <<
277 bool "MMU v4" <<
278 depends on ISA_ARCV2 <<
279 1811
280 endchoice !! 1812 config CPU_LOONGSON32
>> 1813 bool
>> 1814 select CPU_MIPS32
>> 1815 select CPU_MIPSR2
>> 1816 select CPU_HAS_PREFETCH
>> 1817 select CPU_SUPPORTS_32BIT_KERNEL
>> 1818 select CPU_SUPPORTS_HIGHMEM
>> 1819 select CPU_SUPPORTS_CPUFREQ
281 1820
>> 1821 config CPU_BMIPS32_3300
>> 1822 select SMP_UP if SMP
>> 1823 bool
282 1824
283 choice !! 1825 config CPU_BMIPS4350
284 prompt "MMU Page Size" !! 1826 bool
285 default ARC_PAGE_SIZE_8K !! 1827 select SYS_SUPPORTS_SMP
>> 1828 select SYS_SUPPORTS_HOTPLUG_CPU
286 1829
287 config ARC_PAGE_SIZE_8K !! 1830 config CPU_BMIPS4380
288 bool "8KB" !! 1831 bool
289 select HAVE_PAGE_SIZE_8KB !! 1832 select MIPS_L1_CACHE_SHIFT_6
290 help !! 1833 select SYS_SUPPORTS_SMP
291 Choose between 8k vs 16k !! 1834 select SYS_SUPPORTS_HOTPLUG_CPU
292 !! 1835 select CPU_HAS_RIXI
293 config ARC_PAGE_SIZE_16K <<
294 select HAVE_PAGE_SIZE_16KB <<
295 bool "16KB" <<
296 <<
297 config ARC_PAGE_SIZE_4K <<
298 bool "4KB" <<
299 select HAVE_PAGE_SIZE_4KB <<
300 depends on ARC_MMU_V3 || ARC_MMU_V4 <<
301 1836
302 endchoice !! 1837 config CPU_BMIPS5000
>> 1838 bool
>> 1839 select MIPS_CPU_SCACHE
>> 1840 select MIPS_L1_CACHE_SHIFT_7
>> 1841 select SYS_SUPPORTS_SMP
>> 1842 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1843 select CPU_HAS_RIXI
>> 1844
>> 1845 config SYS_HAS_CPU_LOONGSON64
>> 1846 bool
>> 1847 select CPU_SUPPORTS_CPUFREQ
>> 1848 select CPU_HAS_RIXI
>> 1849
>> 1850 config SYS_HAS_CPU_LOONGSON2E
>> 1851 bool
>> 1852
>> 1853 config SYS_HAS_CPU_LOONGSON2F
>> 1854 bool
>> 1855 select CPU_SUPPORTS_CPUFREQ
>> 1856 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
>> 1857
>> 1858 config SYS_HAS_CPU_LOONGSON1B
>> 1859 bool
>> 1860
>> 1861 config SYS_HAS_CPU_LOONGSON1C
>> 1862 bool
>> 1863
>> 1864 config SYS_HAS_CPU_MIPS32_R1
>> 1865 bool
>> 1866
>> 1867 config SYS_HAS_CPU_MIPS32_R2
>> 1868 bool
>> 1869
>> 1870 config SYS_HAS_CPU_MIPS32_R3_5
>> 1871 bool
>> 1872
>> 1873 config SYS_HAS_CPU_MIPS32_R5
>> 1874 bool
>> 1875
>> 1876 config SYS_HAS_CPU_MIPS32_R6
>> 1877 bool
>> 1878
>> 1879 config SYS_HAS_CPU_MIPS64_R1
>> 1880 bool
>> 1881
>> 1882 config SYS_HAS_CPU_MIPS64_R2
>> 1883 bool
>> 1884
>> 1885 config SYS_HAS_CPU_MIPS64_R5
>> 1886 bool
>> 1887
>> 1888 config SYS_HAS_CPU_MIPS64_R6
>> 1889 bool
>> 1890
>> 1891 config SYS_HAS_CPU_P5600
>> 1892 bool
>> 1893
>> 1894 config SYS_HAS_CPU_R3000
>> 1895 bool
>> 1896
>> 1897 config SYS_HAS_CPU_R4300
>> 1898 bool
>> 1899
>> 1900 config SYS_HAS_CPU_R4X00
>> 1901 bool
>> 1902
>> 1903 config SYS_HAS_CPU_TX49XX
>> 1904 bool
>> 1905
>> 1906 config SYS_HAS_CPU_R5000
>> 1907 bool
>> 1908
>> 1909 config SYS_HAS_CPU_R5500
>> 1910 bool
>> 1911
>> 1912 config SYS_HAS_CPU_NEVADA
>> 1913 bool
>> 1914
>> 1915 config SYS_HAS_CPU_R10000
>> 1916 bool
>> 1917
>> 1918 config SYS_HAS_CPU_RM7000
>> 1919 bool
>> 1920
>> 1921 config SYS_HAS_CPU_SB1
>> 1922 bool
>> 1923
>> 1924 config SYS_HAS_CPU_CAVIUM_OCTEON
>> 1925 bool
>> 1926
>> 1927 config SYS_HAS_CPU_BMIPS
>> 1928 bool
>> 1929
>> 1930 config SYS_HAS_CPU_BMIPS32_3300
>> 1931 bool
>> 1932 select SYS_HAS_CPU_BMIPS
>> 1933
>> 1934 config SYS_HAS_CPU_BMIPS4350
>> 1935 bool
>> 1936 select SYS_HAS_CPU_BMIPS
>> 1937
>> 1938 config SYS_HAS_CPU_BMIPS4380
>> 1939 bool
>> 1940 select SYS_HAS_CPU_BMIPS
>> 1941
>> 1942 config SYS_HAS_CPU_BMIPS5000
>> 1943 bool
>> 1944 select SYS_HAS_CPU_BMIPS
>> 1945
>> 1946 #
>> 1947 # CPU may reorder R->R, R->W, W->R, W->W
>> 1948 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
>> 1949 #
>> 1950 config WEAK_ORDERING
>> 1951 bool
>> 1952
>> 1953 #
>> 1954 # CPU may reorder reads and writes beyond LL/SC
>> 1955 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
>> 1956 #
>> 1957 config WEAK_REORDERING_BEYOND_LLSC
>> 1958 bool
>> 1959 endmenu
>> 1960
>> 1961 #
>> 1962 # These two indicate any level of the MIPS32 and MIPS64 architecture
>> 1963 #
>> 1964 config CPU_MIPS32
>> 1965 bool
>> 1966 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
>> 1967 CPU_MIPS32_R6 || CPU_P5600
>> 1968
>> 1969 config CPU_MIPS64
>> 1970 bool
>> 1971 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
>> 1972 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
>> 1973
>> 1974 #
>> 1975 # These indicate the revision of the architecture
>> 1976 #
>> 1977 config CPU_MIPSR1
>> 1978 bool
>> 1979 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
>> 1980
>> 1981 config CPU_MIPSR2
>> 1982 bool
>> 1983 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
>> 1984 select CPU_HAS_RIXI
>> 1985 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 1986 select MIPS_SPRAM
>> 1987
>> 1988 config CPU_MIPSR5
>> 1989 bool
>> 1990 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
>> 1991 select CPU_HAS_RIXI
>> 1992 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 1993 select MIPS_SPRAM
>> 1994
>> 1995 config CPU_MIPSR6
>> 1996 bool
>> 1997 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
>> 1998 select CPU_HAS_RIXI
>> 1999 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 2000 select HAVE_ARCH_BITREVERSE
>> 2001 select MIPS_ASID_BITS_VARIABLE
>> 2002 select MIPS_CRC_SUPPORT
>> 2003 select MIPS_SPRAM
>> 2004
>> 2005 config TARGET_ISA_REV
>> 2006 int
>> 2007 default 1 if CPU_MIPSR1
>> 2008 default 2 if CPU_MIPSR2
>> 2009 default 5 if CPU_MIPSR5
>> 2010 default 6 if CPU_MIPSR6
>> 2011 default 0
>> 2012 help
>> 2013 Reflects the ISA revision being targeted by the kernel build. This
>> 2014 is effectively the Kconfig equivalent of MIPS_ISA_REV.
>> 2015
>> 2016 config EVA
>> 2017 bool
>> 2018
>> 2019 config XPA
>> 2020 bool
>> 2021
>> 2022 config SYS_SUPPORTS_32BIT_KERNEL
>> 2023 bool
>> 2024 config SYS_SUPPORTS_64BIT_KERNEL
>> 2025 bool
>> 2026 config CPU_SUPPORTS_32BIT_KERNEL
>> 2027 bool
>> 2028 config CPU_SUPPORTS_64BIT_KERNEL
>> 2029 bool
>> 2030 config CPU_SUPPORTS_CPUFREQ
>> 2031 bool
>> 2032 config CPU_SUPPORTS_ADDRWINCFG
>> 2033 bool
>> 2034 config CPU_SUPPORTS_HUGEPAGES
>> 2035 bool
>> 2036 depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
>> 2037 config CPU_SUPPORTS_VZ
>> 2038 bool
>> 2039 config MIPS_PGD_C0_CONTEXT
>> 2040 bool
>> 2041 depends on 64BIT
>> 2042 default y if (CPU_MIPSR2 || CPU_MIPSR6)
>> 2043
>> 2044 #
>> 2045 # Set to y for ptrace access to watch registers.
>> 2046 #
>> 2047 config HARDWARE_WATCHPOINTS
>> 2048 bool
>> 2049 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
>> 2050
>> 2051 menu "Kernel type"
303 2052
304 choice 2053 choice
305 prompt "MMU Super Page Size" !! 2054 prompt "Kernel code model"
306 depends on ISA_ARCV2 && TRANSPARENT_HU !! 2055 help
307 default ARC_HUGEPAGE_2M !! 2056 You should only select this option if you have a workload that
>> 2057 actually benefits from 64-bit processing or if your machine has
>> 2058 large memory. You will only be presented a single option in this
>> 2059 menu if your system does not support both 32-bit and 64-bit kernels.
308 2060
309 config ARC_HUGEPAGE_2M !! 2061 config 32BIT
310 bool "2MB" !! 2062 bool "32-bit kernel"
>> 2063 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
>> 2064 select TRAD_SIGNALS
>> 2065 help
>> 2066 Select this option if you want to build a 32-bit kernel.
311 2067
312 config ARC_HUGEPAGE_16M !! 2068 config 64BIT
313 bool "16MB" !! 2069 bool "64-bit kernel"
>> 2070 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
>> 2071 help
>> 2072 Select this option if you want to build a 64-bit kernel.
314 2073
315 endchoice 2074 endchoice
316 2075
317 config PGTABLE_LEVELS !! 2076 config MIPS_VA_BITS_48
318 int "Number of Page table levels" !! 2077 bool "48 bits virtual memory"
319 default 2 !! 2078 depends on 64BIT
>> 2079 help
>> 2080 Support a maximum at least 48 bits of application virtual
>> 2081 memory. Default is 40 bits or less, depending on the CPU.
>> 2082 For page sizes 16k and above, this option results in a small
>> 2083 memory overhead for page tables. For 4k page size, a fourth
>> 2084 level of page tables is added which imposes both a memory
>> 2085 overhead as well as slower TLB fault handling.
>> 2086
>> 2087 If unsure, say N.
>> 2088
>> 2089 config ZBOOT_LOAD_ADDRESS
>> 2090 hex "Compressed kernel load address"
>> 2091 default 0xffffffff80400000 if BCM47XX
>> 2092 default 0x0
>> 2093 depends on SYS_SUPPORTS_ZBOOT
>> 2094 help
>> 2095 The address to load compressed kernel, aka vmlinuz.
320 2096
321 config ARC_COMPACT_IRQ_LEVELS !! 2097 This is only used if non-zero.
322 depends on ISA_ARCOMPACT <<
323 bool "Setup Timer IRQ as high Priority <<
324 # if SMP, LV2 enabled ONLY if ARC impl <<
325 depends on !SMP <<
326 <<
327 config ARC_FPU_SAVE_RESTORE <<
328 bool "Enable FPU state persistence acr <<
329 help <<
330 ARCompact FPU has internal registers <<
331 Floating Point operations. There are <<
332 for floating point exceptions and ro <<
333 preserved across task context switch <<
334 2098
335 config ARC_CANT_LLSC !! 2099 config ARCH_FORCE_MAX_ORDER
336 def_bool n !! 2100 int "Maximum zone order"
>> 2101 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2102 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2103 default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2104 default "10"
>> 2105 help
>> 2106 The kernel memory allocator divides physically contiguous memory
>> 2107 blocks into "zones", where each zone is a power of two number of
>> 2108 pages. This option selects the largest power of two that the kernel
>> 2109 keeps in the memory allocator. If you need to allocate very large
>> 2110 blocks of physically contiguous memory, then you may need to
>> 2111 increase this value.
>> 2112
>> 2113 The page size is not necessarily 4KB. Keep this in mind
>> 2114 when choosing a value for this option.
>> 2115
>> 2116 config BOARD_SCACHE
>> 2117 bool
>> 2118
>> 2119 config IP22_CPU_SCACHE
>> 2120 bool
>> 2121 select BOARD_SCACHE
337 2122
338 config ARC_HAS_LLSC !! 2123 #
339 bool "Insn: LLOCK/SCOND (efficient ato !! 2124 # Support for a MIPS32 / MIPS64 style S-caches
340 default y !! 2125 #
341 depends on !ARC_CANT_LLSC !! 2126 config MIPS_CPU_SCACHE
>> 2127 bool
>> 2128 select BOARD_SCACHE
>> 2129
>> 2130 config R5000_CPU_SCACHE
>> 2131 bool
>> 2132 select BOARD_SCACHE
>> 2133
>> 2134 config RM7000_CPU_SCACHE
>> 2135 bool
>> 2136 select BOARD_SCACHE
>> 2137
>> 2138 config SIBYTE_DMA_PAGEOPS
>> 2139 bool "Use DMA to clear/copy pages"
>> 2140 depends on CPU_SB1
>> 2141 help
>> 2142 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 2143 channel. These DMA channels are otherwise unused by the standard
>> 2144 SiByte Linux port. Seems to give a small performance benefit.
>> 2145
>> 2146 config CPU_HAS_PREFETCH
>> 2147 bool
>> 2148
>> 2149 config CPU_GENERIC_DUMP_TLB
>> 2150 bool
>> 2151 default y if !CPU_R3000
342 2152
343 config ARC_HAS_SWAPE !! 2153 config MIPS_FP_SUPPORT
344 bool "Insn: SWAPE (endian-swap)" !! 2154 bool "Floating Point support" if EXPERT
345 default y 2155 default y
>> 2156 help
>> 2157 Select y to include support for floating point in the kernel
>> 2158 including initialization of FPU hardware, FP context save & restore
>> 2159 and emulation of an FPU where necessary. Without this support any
>> 2160 userland program attempting to use floating point instructions will
>> 2161 receive a SIGILL.
>> 2162
>> 2163 If you know that your userland will not attempt to use floating point
>> 2164 instructions then you can say n here to shrink the kernel a little.
>> 2165
>> 2166 If unsure, say y.
>> 2167
>> 2168 config CPU_R2300_FPU
>> 2169 bool
>> 2170 depends on MIPS_FP_SUPPORT
>> 2171 default y if CPU_R3000
>> 2172
>> 2173 config CPU_R3K_TLB
>> 2174 bool
>> 2175
>> 2176 config CPU_R4K_FPU
>> 2177 bool
>> 2178 depends on MIPS_FP_SUPPORT
>> 2179 default y if !CPU_R2300_FPU
>> 2180
>> 2181 config CPU_R4K_CACHE_TLB
>> 2182 bool
>> 2183 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
346 2184
347 if ISA_ARCV2 !! 2185 config MIPS_MT_SMP
348 !! 2186 bool "MIPS MT SMP support (1 TC on each available VPE)"
349 config ARC_USE_UNALIGNED_MEM_ACCESS <<
350 bool "Enable unaligned access in HW" <<
351 default y 2187 default y
352 select HAVE_EFFICIENT_UNALIGNED_ACCESS !! 2188 depends on TARGET_ISA_REV > 0 && TARGET_ISA_REV < 6
>> 2189 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MICROMIPS
>> 2190 select CPU_MIPSR2_IRQ_VI
>> 2191 select CPU_MIPSR2_IRQ_EI
>> 2192 select SYNC_R4K
>> 2193 select MIPS_MT
>> 2194 select SMP
>> 2195 select SMP_UP
>> 2196 select SYS_SUPPORTS_SMP
>> 2197 select SYS_SUPPORTS_SCHED_SMT
>> 2198 select MIPS_PERF_SHARED_TC_COUNTERS
>> 2199 help
>> 2200 This is a kernel model which is known as SMVP. This is supported
>> 2201 on cores with the MT ASE and uses the available VPEs to implement
>> 2202 virtual processors which supports SMP. This is equivalent to the
>> 2203 Intel Hyperthreading feature. For further information go to
>> 2204 <http://www.imgtec.com/mips/mips-multithreading.asp>.
>> 2205
>> 2206 config MIPS_MT
>> 2207 bool
>> 2208
>> 2209 config SCHED_SMT
>> 2210 bool "SMT (multithreading) scheduler support"
>> 2211 depends on SYS_SUPPORTS_SCHED_SMT
>> 2212 default n
353 help 2213 help
354 The ARC HS architecture supports una !! 2214 SMT scheduler support improves the CPU scheduler's decision making
355 which is disabled by default. Enable !! 2215 when dealing with MIPS MT enabled cores at a cost of slightly
356 hardware and use software to use it !! 2216 increased overhead in some places. If unsure say N here.
357 2217
358 config ARC_HAS_LL64 !! 2218 config SYS_SUPPORTS_SCHED_SMT
359 bool "Insn: 64bit LDD/STD" !! 2219 bool
360 help !! 2220
361 Enable gcc to generate 64-bit load/s !! 2221 config SYS_SUPPORTS_MULTITHREADING
362 ISA mandates even/odd registers to a !! 2222 bool
363 dest operands with 2 possible source <<
364 default y <<
365 2223
366 config ARC_HAS_DIV_REM !! 2224 config MIPS_MT_FPAFF
367 bool "Insn: div, divu, rem, remu" !! 2225 bool "Dynamic FPU affinity for FP-intensive threads"
368 default y 2226 default y
>> 2227 depends on MIPS_MT_SMP
369 2228
370 config ARC_HAS_ACCL_REGS !! 2229 config MIPSR2_TO_R6_EMULATOR
371 bool "Reg Pair ACCL:ACCH (FPU and/or M !! 2230 bool "MIPS R2-to-R6 emulator"
>> 2231 depends on CPU_MIPSR6
>> 2232 depends on MIPS_FP_SUPPORT
372 default y 2233 default y
373 help 2234 help
374 Depending on the configuration, CPU !! 2235 Choose this option if you want to run non-R6 MIPS userland code.
375 (also referred to as r58:r59). These !! 2236 Even if you say 'Y' here, the emulator will still be disabled by
376 kernel needs to save/restore per pro !! 2237 default. You can enable it using the 'mipsr2emu' kernel option.
377 !! 2238 The only reason this is a build-time option is to save ~14K from the
378 config ARC_DSP_HANDLED !! 2239 final kernel image.
379 def_bool n !! 2240
>> 2241 config SYS_SUPPORTS_VPE_LOADER
>> 2242 bool
>> 2243 depends on SYS_SUPPORTS_MULTITHREADING
>> 2244 help
>> 2245 Indicates that the platform supports the VPE loader, and provides
>> 2246 physical_memsize.
>> 2247
>> 2248 config MIPS_VPE_LOADER
>> 2249 bool "VPE loader support."
>> 2250 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
>> 2251 select CPU_MIPSR2_IRQ_VI
>> 2252 select CPU_MIPSR2_IRQ_EI
>> 2253 select MIPS_MT
>> 2254 help
>> 2255 Includes a loader for loading an elf relocatable object
>> 2256 onto another VPE and running it.
>> 2257
>> 2258 config MIPS_VPE_LOADER_MT
>> 2259 bool
>> 2260 default "y"
>> 2261 depends on MIPS_VPE_LOADER
>> 2262
>> 2263 config MIPS_VPE_LOADER_TOM
>> 2264 bool "Load VPE program into memory hidden from linux"
>> 2265 depends on MIPS_VPE_LOADER
>> 2266 default y
>> 2267 help
>> 2268 The loader can use memory that is present but has been hidden from
>> 2269 Linux using the kernel command line option "mem=xxMB". It's up to
>> 2270 you to ensure the amount you put in the option and the space your
>> 2271 program requires is less or equal to the amount physically present.
>> 2272
>> 2273 config MIPS_VPE_APSP_API
>> 2274 bool "Enable support for AP/SP API (RTLX)"
>> 2275 depends on MIPS_VPE_LOADER
>> 2276
>> 2277 config MIPS_VPE_APSP_API_MT
>> 2278 bool
>> 2279 default "y"
>> 2280 depends on MIPS_VPE_APSP_API
>> 2281
>> 2282 config MIPS_CPS
>> 2283 bool "MIPS Coherent Processing System support"
>> 2284 depends on SYS_SUPPORTS_MIPS_CPS
>> 2285 select MIPS_CM
>> 2286 select MIPS_CPS_PM if HOTPLUG_CPU
>> 2287 select SMP
>> 2288 select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
>> 2289 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
>> 2290 select SYS_SUPPORTS_HOTPLUG_CPU
>> 2291 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
>> 2292 select SYS_SUPPORTS_SMP
>> 2293 select WEAK_ORDERING
>> 2294 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
>> 2295 help
>> 2296 Select this if you wish to run an SMP kernel across multiple cores
>> 2297 within a MIPS Coherent Processing System. When this option is
>> 2298 enabled the kernel will probe for other cores and boot them with
>> 2299 no external assistance. It is safe to enable this when hardware
>> 2300 support is unavailable.
>> 2301
>> 2302 config MIPS_CPS_PM
>> 2303 depends on MIPS_CPS
>> 2304 bool
>> 2305
>> 2306 config MIPS_CM
>> 2307 bool
>> 2308 select MIPS_CPC
>> 2309
>> 2310 config MIPS_CPC
>> 2311 bool
>> 2312
>> 2313 config SB1_PASS_2_WORKAROUNDS
>> 2314 bool
>> 2315 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
>> 2316 default y
380 2317
381 config ARC_DSP_SAVE_RESTORE_REGS !! 2318 config SB1_PASS_2_1_WORKAROUNDS
382 def_bool n !! 2319 bool
>> 2320 depends on CPU_SB1 && CPU_SB1_PASS_2
>> 2321 default y
383 2322
384 choice 2323 choice
385 prompt "DSP support" !! 2324 prompt "SmartMIPS or microMIPS ASE support"
386 default ARC_DSP_NONE !! 2325
>> 2326 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
>> 2327 bool "None"
387 help 2328 help
388 Depending on the configuration, CPU !! 2329 Select this if you want neither microMIPS nor SmartMIPS support
389 (ACC0_GLO, ACC0_GHI, DSP_BFLY0, DSP_ !! 2330
390 Below are options describing how to !! 2331 config CPU_HAS_SMARTMIPS
391 interrupt entry / exit and in contex !! 2332 depends on SYS_SUPPORTS_SMARTMIPS
392 !! 2333 bool "SmartMIPS"
393 config ARC_DSP_NONE !! 2334 help
394 bool "No DSP extension presence in HW" !! 2335 SmartMIPS is a extension of the MIPS32 architecture aimed at
395 help !! 2336 increased security at both hardware and software level for
396 No DSP extension presence in HW !! 2337 smartcards. Enabling this option will allow proper use of the
397 !! 2338 SmartMIPS instructions by Linux applications. However a kernel with
398 config ARC_DSP_KERNEL !! 2339 this option will not work on a MIPS core without SmartMIPS core. If
399 bool "DSP extension in HW, no support !! 2340 you don't know you probably don't have SmartMIPS and should say N
400 select ARC_HAS_ACCL_REGS !! 2341 here.
401 select ARC_DSP_HANDLED !! 2342
402 help !! 2343 config CPU_MICROMIPS
403 DSP extension presence in HW, no sup !! 2344 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
404 applications. We don't save / restor !! 2345 bool "microMIPS"
405 some minimal preparations so userspa <<
406 <<
407 config ARC_DSP_USERSPACE <<
408 bool "Support DSP for userspace apps" <<
409 select ARC_HAS_ACCL_REGS <<
410 select ARC_DSP_HANDLED <<
411 select ARC_DSP_SAVE_RESTORE_REGS <<
412 help <<
413 DSP extension presence in HW, suppor <<
414 run DSP-enabled userspace applicatio <<
415 <<
416 config ARC_DSP_AGU_USERSPACE <<
417 bool "Support DSP with AGU for userspa <<
418 select ARC_HAS_ACCL_REGS <<
419 select ARC_DSP_HANDLED <<
420 select ARC_DSP_SAVE_RESTORE_REGS <<
421 help 2346 help
422 DSP and AGU extensions presence in H !! 2347 When this option is enabled the kernel will be built using the
423 and AGU registers to run DSP-enabled !! 2348 microMIPS ISA
>> 2349
424 endchoice 2350 endchoice
425 2351
426 config ARC_IRQ_NO_AUTOSAVE !! 2352 config CPU_HAS_MSA
427 bool "Disable hardware autosave regfil !! 2353 bool "Support for the MIPS SIMD Architecture"
428 default n !! 2354 depends on CPU_SUPPORTS_MSA
429 help !! 2355 depends on MIPS_FP_SUPPORT
430 On HS cores, taken interrupt auto sa !! 2356 depends on 64BIT || MIPS_O32_FP64_SUPPORT
431 This is programmable and can be opti !! 2357 help
432 software INTERRUPT_PROLOGUE/EPILGUE !! 2358 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
433 !! 2359 and a set of SIMD instructions to operate on them. When this option
434 config ARC_LPB_DISABLE !! 2360 is enabled the kernel will support allocating & switching MSA
435 bool "Disable loop buffer (LPB)" !! 2361 vector register contexts. If you know that your kernel will only be
436 help !! 2362 running on CPUs which do not support MSA or that your userland will
437 On HS cores, loop buffer (LPB) is pr !! 2363 not be making use of it then you may wish to say N here to reduce
438 be optionally disabled. !! 2364 the size & complexity of your kernel.
439 !! 2365
440 endif # ISA_ARCV2 !! 2366 If unsure, say Y.
441 !! 2367
442 endmenu # "ARC CPU Configuration" !! 2368 config CPU_HAS_WB
443 !! 2369 bool
444 config LINUX_LINK_BASE !! 2370
445 hex "Kernel link address" !! 2371 config XKS01
446 default "0x80000000" !! 2372 bool
447 help !! 2373
448 ARC700 divides the 32 bit phy addres !! 2374 config CPU_HAS_DIEI
449 -Lower 2G (0 - 0x7FFF_FFFF ) is user !! 2375 depends on !CPU_DIEI_BROKEN
450 -Upper 2G (0x8000_0000 onwards) is u !! 2376 bool
451 Typically Linux kernel is linked at !! 2377
452 hence the default value of 0x8zs. !! 2378 config CPU_DIEI_BROKEN
453 However some customers have peripher !! 2379 bool
454 Linux needs to be scooted a bit. !! 2380
455 If you don't know what the above mea !! 2381 config CPU_HAS_RIXI
456 This needs to match memory start add !! 2382 bool
457 !! 2383
458 config LINUX_RAM_BASE !! 2384 config CPU_NO_LOAD_STORE_LR
459 hex "RAM base address" !! 2385 bool
460 default LINUX_LINK_BASE !! 2386 help
461 help !! 2387 CPU lacks support for unaligned load and store instructions:
462 By default Linux is linked at base o !! 2388 LWL, LWR, SWL, SWR (Load/store word left/right).
463 cases (such as HSDK), Linux can't be !! 2389 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
464 this option. !! 2390 systems).
465 2391
>> 2392 #
>> 2393 # Vectored interrupt mode is an R2 feature
>> 2394 #
>> 2395 config CPU_MIPSR2_IRQ_VI
>> 2396 bool
>> 2397
>> 2398 #
>> 2399 # Extended interrupt mode is an R2 feature
>> 2400 #
>> 2401 config CPU_MIPSR2_IRQ_EI
>> 2402 bool
>> 2403
>> 2404 config CPU_HAS_SYNC
>> 2405 bool
>> 2406 depends on !CPU_R3000
>> 2407 default y
>> 2408
>> 2409 #
>> 2410 # CPU non-features
>> 2411 #
>> 2412
>> 2413 # Work around the "daddi" and "daddiu" CPU errata:
>> 2414 #
>> 2415 # - The `daddi' instruction fails to trap on overflow.
>> 2416 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
>> 2417 # erratum #23
>> 2418 #
>> 2419 # - The `daddiu' instruction can produce an incorrect result.
>> 2420 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
>> 2421 # erratum #41
>> 2422 # "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
>> 2423 # #15
>> 2424 # "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
>> 2425 # "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
>> 2426 config CPU_DADDI_WORKAROUNDS
>> 2427 bool
>> 2428
>> 2429 # Work around certain R4000 CPU errata (as implemented by GCC):
>> 2430 #
>> 2431 # - A double-word or a variable shift may give an incorrect result
>> 2432 # if executed immediately after starting an integer division:
>> 2433 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
>> 2434 # erratum #28
>> 2435 # "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
>> 2436 # #19
>> 2437 #
>> 2438 # - A double-word or a variable shift may give an incorrect result
>> 2439 # if executed while an integer multiplication is in progress:
>> 2440 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
>> 2441 # errata #16 & #28
>> 2442 #
>> 2443 # - An integer division may give an incorrect result if started in
>> 2444 # a delay slot of a taken branch or a jump:
>> 2445 # "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
>> 2446 # erratum #52
>> 2447 config CPU_R4000_WORKAROUNDS
>> 2448 bool
>> 2449 select CPU_R4400_WORKAROUNDS
>> 2450
>> 2451 # Work around certain R4400 CPU errata (as implemented by GCC):
>> 2452 #
>> 2453 # - A double-word or a variable shift may give an incorrect result
>> 2454 # if executed immediately after starting an integer division:
>> 2455 # "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
>> 2456 # "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
>> 2457 config CPU_R4400_WORKAROUNDS
>> 2458 bool
>> 2459
>> 2460 config CPU_R4X00_BUGS64
>> 2461 bool
>> 2462 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
>> 2463
>> 2464 config MIPS_ASID_SHIFT
>> 2465 int
>> 2466 default 6 if CPU_R3000
>> 2467 default 0
>> 2468
>> 2469 config MIPS_ASID_BITS
>> 2470 int
>> 2471 default 0 if MIPS_ASID_BITS_VARIABLE
>> 2472 default 6 if CPU_R3000
>> 2473 default 8
>> 2474
>> 2475 config MIPS_ASID_BITS_VARIABLE
>> 2476 bool
>> 2477
>> 2478 config MIPS_CRC_SUPPORT
>> 2479 bool
>> 2480
>> 2481 # R4600 erratum. Due to the lack of errata information the exact
>> 2482 # technical details aren't known. I've experimentally found that disabling
>> 2483 # interrupts during indexed I-cache flushes seems to be sufficient to deal
>> 2484 # with the issue.
>> 2485 config WAR_R4600_V1_INDEX_ICACHEOP
>> 2486 bool
>> 2487
>> 2488 # Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata:
>> 2489 #
>> 2490 # 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
>> 2491 # Hit_Invalidate_D and Create_Dirty_Excl_D should only be
>> 2492 # executed if there is no other dcache activity. If the dcache is
>> 2493 # accessed for another instruction immediately preceding when these
>> 2494 # cache instructions are executing, it is possible that the dcache
>> 2495 # tag match outputs used by these cache instructions will be
>> 2496 # incorrect. These cache instructions should be preceded by at least
>> 2497 # four instructions that are not any kind of load or store
>> 2498 # instruction.
>> 2499 #
>> 2500 # This is not allowed: lw
>> 2501 # nop
>> 2502 # nop
>> 2503 # nop
>> 2504 # cache Hit_Writeback_Invalidate_D
>> 2505 #
>> 2506 # This is allowed: lw
>> 2507 # nop
>> 2508 # nop
>> 2509 # nop
>> 2510 # nop
>> 2511 # cache Hit_Writeback_Invalidate_D
>> 2512 config WAR_R4600_V1_HIT_CACHEOP
>> 2513 bool
>> 2514
>> 2515 # Writeback and invalidate the primary cache dcache before DMA.
>> 2516 #
>> 2517 # R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
>> 2518 # Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
>> 2519 # operate correctly if the internal data cache refill buffer is empty. These
>> 2520 # CACHE instructions should be separated from any potential data cache miss
>> 2521 # by a load instruction to an uncached address to empty the response buffer."
>> 2522 # (Revision 2.0 device errata from IDT available on https://www.idt.com/
>> 2523 # in .pdf format.)
>> 2524 config WAR_R4600_V2_HIT_CACHEOP
>> 2525 bool
>> 2526
>> 2527 # From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
>> 2528 # the line which this instruction itself exists, the following
>> 2529 # operation is not guaranteed."
>> 2530 #
>> 2531 # Workaround: do two phase flushing for Index_Invalidate_I
>> 2532 config WAR_TX49XX_ICACHE_INDEX_INV
>> 2533 bool
>> 2534
>> 2535 # The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
>> 2536 # opposes it being called that) where invalid instructions in the same
>> 2537 # I-cache line worth of instructions being fetched may case spurious
>> 2538 # exceptions.
>> 2539 config WAR_ICACHE_REFILLS
>> 2540 bool
>> 2541
>> 2542 # On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
>> 2543 # may cause ll / sc and lld / scd sequences to execute non-atomically.
>> 2544 config WAR_R10000_LLSC
>> 2545 bool
>> 2546
>> 2547 # 34K core erratum: "Problems Executing the TLBR Instruction"
>> 2548 config WAR_MIPS34K_MISSED_ITLB
>> 2549 bool
>> 2550
>> 2551 #
>> 2552 # - Highmem only makes sense for the 32-bit kernel.
>> 2553 # - The current highmem code will only work properly on physically indexed
>> 2554 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 2555 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 2556 # moment we protect the user and offer the highmem option only on machines
>> 2557 # where it's known to be safe. This will not offer highmem on a few systems
>> 2558 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 2559 # indexed CPUs but we're playing safe.
>> 2560 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
>> 2561 # know they might have memory configurations that could make use of highmem
>> 2562 # support.
>> 2563 #
466 config HIGHMEM 2564 config HIGHMEM
467 bool "High Memory Support" 2565 bool "High Memory Support"
468 select HAVE_ARCH_PFN_VALID !! 2566 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
469 select KMAP_LOCAL 2567 select KMAP_LOCAL
>> 2568
>> 2569 config CPU_SUPPORTS_HIGHMEM
>> 2570 bool
>> 2571
>> 2572 config SYS_SUPPORTS_HIGHMEM
>> 2573 bool
>> 2574
>> 2575 config SYS_SUPPORTS_SMARTMIPS
>> 2576 bool
>> 2577
>> 2578 config SYS_SUPPORTS_MICROMIPS
>> 2579 bool
>> 2580
>> 2581 config SYS_SUPPORTS_MIPS16
>> 2582 bool
470 help 2583 help
471 With ARC 2G:2G address split, only u !! 2584 This option must be set if a kernel might be executed on a MIPS16-
472 kernel. Enable this to potentially a !! 2585 enabled CPU even if MIPS16 is not actually being used. In other
473 in future !! 2586 words, it makes the kernel MIPS16-tolerant.
474 !! 2587
475 config ARC_HAS_PAE40 !! 2588 config CPU_SUPPORTS_MSA
476 bool "Support for the 40-bit Physical !! 2589 bool
477 depends on ISA_ARCV2 !! 2590
478 select HIGHMEM !! 2591 config ARCH_FLATMEM_ENABLE
479 select PHYS_ADDR_T_64BIT !! 2592 def_bool y
480 help !! 2593 depends on !NUMA && !CPU_LOONGSON2EF
481 Enable access to physical memory bey !! 2594
482 ARC cores with 40 bit Physical Addre !! 2595 config ARCH_SPARSEMEM_ENABLE
>> 2596 bool
483 2597
484 config ARC_KVADDR_SIZE !! 2598 config NUMA
485 int "Kernel Virtual Address Space size !! 2599 bool "NUMA Support"
486 range 0 512 !! 2600 depends on SYS_SUPPORTS_NUMA
487 default "256" !! 2601 select SMP
>> 2602 select HAVE_SETUP_PER_CPU_AREA
>> 2603 select NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 2604 help
>> 2605 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 2606 Access). This option improves performance on systems with more
>> 2607 than two nodes; on two node systems it is generally better to
>> 2608 leave it disabled; on single node systems leave this option
>> 2609 disabled.
>> 2610
>> 2611 config SYS_SUPPORTS_NUMA
>> 2612 bool
>> 2613
>> 2614 config RELOCATABLE
>> 2615 bool "Relocatable kernel"
>> 2616 depends on SYS_SUPPORTS_RELOCATABLE
>> 2617 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
>> 2618 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
>> 2619 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
>> 2620 CPU_P5600 || CAVIUM_OCTEON_SOC || \
>> 2621 CPU_LOONGSON64
>> 2622 help
>> 2623 This builds a kernel image that retains relocation information
>> 2624 so it can be loaded someplace besides the default 1MB.
>> 2625 The relocations make the kernel binary about 15% larger,
>> 2626 but are discarded at runtime
>> 2627
>> 2628 config RELOCATION_TABLE_SIZE
>> 2629 hex "Relocation table size"
>> 2630 depends on RELOCATABLE
>> 2631 range 0x0 0x01000000
>> 2632 default "0x00200000" if CPU_LOONGSON64
>> 2633 default "0x00100000"
>> 2634 help
>> 2635 A table of relocation data will be appended to the kernel binary
>> 2636 and parsed at boot to fix up the relocated kernel.
>> 2637
>> 2638 This option allows the amount of space reserved for the table to be
>> 2639 adjusted, although the default of 1Mb should be ok in most cases.
>> 2640
>> 2641 The build will fail and a valid size suggested if this is too small.
>> 2642
>> 2643 If unsure, leave at the default value.
>> 2644
>> 2645 config RANDOMIZE_BASE
>> 2646 bool "Randomize the address of the kernel image"
>> 2647 depends on RELOCATABLE
>> 2648 help
>> 2649 Randomizes the physical and virtual address at which the
>> 2650 kernel image is loaded, as a security feature that
>> 2651 deters exploit attempts relying on knowledge of the location
>> 2652 of kernel internals.
>> 2653
>> 2654 Entropy is generated using any coprocessor 0 registers available.
>> 2655
>> 2656 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
>> 2657
>> 2658 If unsure, say N.
>> 2659
>> 2660 config RANDOMIZE_BASE_MAX_OFFSET
>> 2661 hex "Maximum kASLR offset" if EXPERT
>> 2662 depends on RANDOMIZE_BASE
>> 2663 range 0x0 0x40000000 if EVA || 64BIT
>> 2664 range 0x0 0x08000000
>> 2665 default "0x01000000"
>> 2666 help
>> 2667 When kASLR is active, this provides the maximum offset that will
>> 2668 be applied to the kernel image. It should be set according to the
>> 2669 amount of physical RAM available in the target system minus
>> 2670 PHYSICAL_START and must be a power of 2.
>> 2671
>> 2672 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
>> 2673 EVA or 64-bit. The default is 16Mb.
>> 2674
>> 2675 config NODES_SHIFT
>> 2676 int
>> 2677 default "6"
>> 2678 depends on NUMA
>> 2679
>> 2680 config HW_PERF_EVENTS
>> 2681 bool "Enable hardware performance counter support for perf events"
>> 2682 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
>> 2683 default y
488 help 2684 help
489 The kernel address space is carved o !! 2685 Enable hardware performance counter support for perf events. If
490 space for catering to vmalloc, modul !! 2686 disabled, perf events will use software events only.
491 not suffice vmalloc requirements of <<
492 this to be stretched to 512 MB (by e <<
493 kernel-user gutter) <<
494 2687
495 config ARC_CURR_IN_REG !! 2688 config DMI
496 bool "cache current task pointer in gp !! 2689 bool "Enable DMI scanning"
>> 2690 depends on MACH_LOONGSON64
>> 2691 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
497 default y 2692 default y
498 help 2693 help
499 This reserves gp register to point t !! 2694 Enabled scanning of DMI to identify machine quirks. Say Y
500 kernel mode eliding memory access fo !! 2695 here unless you have verified that your setup is not
>> 2696 affected by entries in the DMI blacklist. Required by PNP
>> 2697 BIOS code.
501 2698
>> 2699 config SMP
>> 2700 bool "Multi-Processing support"
>> 2701 depends on SYS_SUPPORTS_SMP
>> 2702 help
>> 2703 This enables support for systems with more than one CPU. If you have
>> 2704 a system with only one CPU, say N. If you have a system with more
>> 2705 than one CPU, say Y.
>> 2706
>> 2707 If you say N here, the kernel will run on uni- and multiprocessor
>> 2708 machines, but will use only one CPU of a multiprocessor machine. If
>> 2709 you say Y here, the kernel will run on many, but not all,
>> 2710 uniprocessor machines. On a uniprocessor machine, the kernel
>> 2711 will run faster if you say N here.
>> 2712
>> 2713 People using multiprocessor machines who say Y here should also say
>> 2714 Y to "Enhanced Real Time Clock Support", below.
502 2715
503 config ARC_EMUL_UNALIGNED !! 2716 See also the SMP-HOWTO available at
504 bool "Emulate unaligned memory access !! 2717 <https://www.tldp.org/docs.html#howto>.
505 select SYSCTL_ARCH_UNALIGN_NO_WARN !! 2718
506 select SYSCTL_ARCH_UNALIGN_ALLOW !! 2719 If you don't know what to do here, say N.
507 depends on ISA_ARCOMPACT !! 2720
>> 2721 config HOTPLUG_CPU
>> 2722 bool "Support for hot-pluggable CPUs"
>> 2723 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
508 help 2724 help
509 This enables misaligned 16 & 32 bit !! 2725 Say Y here to allow turning CPUs off and on. CPUs can be
510 Use ONLY-IF-ABS-NECESSARY as it will !! 2726 controlled through /sys/devices/system/cpu.
511 potential bugs in code !! 2727 (Note: power management support will enable this option
>> 2728 automatically on SMP systems. )
>> 2729 Say N if you want to disable CPU hotplug.
512 2730
513 config HZ !! 2731 config SMP_UP
514 int "Timer Frequency" !! 2732 bool
515 default 100 !! 2733
>> 2734 config SYS_SUPPORTS_MIPS_CPS
>> 2735 bool
>> 2736
>> 2737 config SYS_SUPPORTS_SMP
>> 2738 bool
>> 2739
>> 2740 config NR_CPUS_DEFAULT_4
>> 2741 bool
>> 2742
>> 2743 config NR_CPUS_DEFAULT_8
>> 2744 bool
>> 2745
>> 2746 config NR_CPUS_DEFAULT_16
>> 2747 bool
>> 2748
>> 2749 config NR_CPUS_DEFAULT_32
>> 2750 bool
516 2751
517 config ARC_METAWARE_HLINK !! 2752 config NR_CPUS_DEFAULT_64
518 bool "Support for Metaware debugger as !! 2753 bool
>> 2754
>> 2755 config NR_CPUS
>> 2756 int "Maximum number of CPUs (2-256)"
>> 2757 range 2 256
>> 2758 depends on SMP
>> 2759 default "4" if NR_CPUS_DEFAULT_4
>> 2760 default "8" if NR_CPUS_DEFAULT_8
>> 2761 default "16" if NR_CPUS_DEFAULT_16
>> 2762 default "32" if NR_CPUS_DEFAULT_32
>> 2763 default "64" if NR_CPUS_DEFAULT_64
>> 2764 help
>> 2765 This allows you to specify the maximum number of CPUs which this
>> 2766 kernel will support. The maximum supported value is 32 for 32-bit
>> 2767 kernel and 64 for 64-bit kernels; the minimum value which makes
>> 2768 sense is 1 for Qemu (useful only for kernel debugging purposes)
>> 2769 and 2 for all others.
>> 2770
>> 2771 This is purely to save memory - each supported CPU adds
>> 2772 approximately eight kilobytes to the kernel image. For best
>> 2773 performance should round up your number of processors to the next
>> 2774 power of two.
>> 2775
>> 2776 config MIPS_PERF_SHARED_TC_COUNTERS
>> 2777 bool
>> 2778
>> 2779 config MIPS_NR_CPU_NR_MAP_1024
>> 2780 bool
>> 2781
>> 2782 config MIPS_NR_CPU_NR_MAP
>> 2783 int
>> 2784 depends on SMP
>> 2785 default 1024 if MIPS_NR_CPU_NR_MAP_1024
>> 2786 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
>> 2787
>> 2788 #
>> 2789 # Timer Interrupt Frequency Configuration
>> 2790 #
>> 2791
>> 2792 choice
>> 2793 prompt "Timer frequency"
>> 2794 default HZ_250
519 help 2795 help
520 This options allows a Linux userland !! 2796 Allows the configuration of the timer frequency.
521 host file system (open/creat/read/wr !! 2797
522 Metaware Debugger. This can come in !! 2798 config HZ_24
523 when there is no real usable periphe !! 2799 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2800
>> 2801 config HZ_48
>> 2802 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2803
>> 2804 config HZ_100
>> 2805 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2806
>> 2807 config HZ_128
>> 2808 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2809
>> 2810 config HZ_250
>> 2811 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2812
>> 2813 config HZ_256
>> 2814 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2815
>> 2816 config HZ_1000
>> 2817 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2818
>> 2819 config HZ_1024
>> 2820 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
>> 2821
>> 2822 endchoice
>> 2823
>> 2824 config SYS_SUPPORTS_24HZ
>> 2825 bool
>> 2826
>> 2827 config SYS_SUPPORTS_48HZ
>> 2828 bool
>> 2829
>> 2830 config SYS_SUPPORTS_100HZ
>> 2831 bool
>> 2832
>> 2833 config SYS_SUPPORTS_128HZ
>> 2834 bool
>> 2835
>> 2836 config SYS_SUPPORTS_250HZ
>> 2837 bool
>> 2838
>> 2839 config SYS_SUPPORTS_256HZ
>> 2840 bool
>> 2841
>> 2842 config SYS_SUPPORTS_1000HZ
>> 2843 bool
>> 2844
>> 2845 config SYS_SUPPORTS_1024HZ
>> 2846 bool
>> 2847
>> 2848 config SYS_SUPPORTS_ARBIT_HZ
>> 2849 bool
>> 2850 default y if !SYS_SUPPORTS_24HZ && \
>> 2851 !SYS_SUPPORTS_48HZ && \
>> 2852 !SYS_SUPPORTS_100HZ && \
>> 2853 !SYS_SUPPORTS_128HZ && \
>> 2854 !SYS_SUPPORTS_250HZ && \
>> 2855 !SYS_SUPPORTS_256HZ && \
>> 2856 !SYS_SUPPORTS_1000HZ && \
>> 2857 !SYS_SUPPORTS_1024HZ
>> 2858
>> 2859 config HZ
>> 2860 int
>> 2861 default 24 if HZ_24
>> 2862 default 48 if HZ_48
>> 2863 default 100 if HZ_100
>> 2864 default 128 if HZ_128
>> 2865 default 250 if HZ_250
>> 2866 default 256 if HZ_256
>> 2867 default 1000 if HZ_1000
>> 2868 default 1024 if HZ_1024
>> 2869
>> 2870 config SCHED_HRTICK
>> 2871 def_bool HIGH_RES_TIMERS
>> 2872
>> 2873 config ARCH_SUPPORTS_KEXEC
>> 2874 def_bool y
>> 2875
>> 2876 config ARCH_SUPPORTS_CRASH_DUMP
>> 2877 def_bool y
>> 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 MIPS_O32_FP64_SUPPORT
>> 2891 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
>> 2892 depends on 32BIT || MIPS32_O32
>> 2893 help
>> 2894 When this is enabled, the kernel will support use of 64-bit floating
>> 2895 point registers with binaries using the O32 ABI along with the
>> 2896 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
>> 2897 32-bit MIPS systems this support is at the cost of increasing the
>> 2898 size and complexity of the compiled FPU emulator. Thus if you are
>> 2899 running a MIPS32 system and know that none of your userland binaries
>> 2900 will require 64-bit floating point, you may wish to reduce the size
>> 2901 of your kernel & potentially improve FP emulation performance by
>> 2902 saying N here.
>> 2903
>> 2904 Although binutils currently supports use of this flag the details
>> 2905 concerning its effect upon the O32 ABI in userland are still being
>> 2906 worked on. In order to avoid userland becoming dependent upon current
>> 2907 behaviour before the details have been finalised, this option should
>> 2908 be considered experimental and only enabled by those working upon
>> 2909 said details.
>> 2910
>> 2911 If unsure, say N.
>> 2912
>> 2913 config USE_OF
>> 2914 bool
>> 2915 select OF
>> 2916 select OF_EARLY_FLATTREE
>> 2917 select IRQ_DOMAIN
>> 2918
>> 2919 config UHI_BOOT
>> 2920 bool
>> 2921
>> 2922 config BUILTIN_DTB
>> 2923 bool
524 2924
525 menuconfig ARC_DBG !! 2925 choice
526 bool "ARC debugging" !! 2926 prompt "Kernel appended dtb support"
>> 2927 depends on USE_OF
>> 2928 default MIPS_NO_APPENDED_DTB
>> 2929
>> 2930 config MIPS_NO_APPENDED_DTB
>> 2931 bool "None"
>> 2932 help
>> 2933 Do not enable appended dtb support.
>> 2934
>> 2935 config MIPS_ELF_APPENDED_DTB
>> 2936 bool "vmlinux"
>> 2937 help
>> 2938 With this option, the boot code will look for a device tree binary
>> 2939 DTB) included in the vmlinux ELF section .appended_dtb. By default
>> 2940 it is empty and the DTB can be appended using binutils command
>> 2941 objcopy:
>> 2942
>> 2943 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
>> 2944
>> 2945 This is meant as a backward compatibility convenience for those
>> 2946 systems with a bootloader that can't be upgraded to accommodate
>> 2947 the documented boot protocol using a device tree.
>> 2948
>> 2949 config MIPS_RAW_APPENDED_DTB
>> 2950 bool "vmlinux.bin or vmlinuz.bin"
>> 2951 help
>> 2952 With this option, the boot code will look for a device tree binary
>> 2953 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
>> 2954 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
>> 2955
>> 2956 This is meant as a backward compatibility convenience for those
>> 2957 systems with a bootloader that can't be upgraded to accommodate
>> 2958 the documented boot protocol using a device tree.
>> 2959
>> 2960 Beware that there is very little in terms of protection against
>> 2961 this option being confused by leftover garbage in memory that might
>> 2962 look like a DTB header after a reboot if no actual DTB is appended
>> 2963 to vmlinux.bin. Do not leave this option active in a production kernel
>> 2964 if you don't intend to always append a DTB.
>> 2965 endchoice
>> 2966
>> 2967 choice
>> 2968 prompt "Kernel command line type"
>> 2969 depends on !CMDLINE_OVERRIDE
>> 2970 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
>> 2971 !MACH_LOONGSON64 && !MIPS_MALTA && \
>> 2972 !CAVIUM_OCTEON_SOC
>> 2973 default MIPS_CMDLINE_FROM_BOOTLOADER
>> 2974
>> 2975 config MIPS_CMDLINE_FROM_DTB
>> 2976 depends on USE_OF
>> 2977 bool "Dtb kernel arguments if available"
>> 2978
>> 2979 config MIPS_CMDLINE_DTB_EXTEND
>> 2980 depends on USE_OF
>> 2981 bool "Extend dtb kernel arguments with bootloader arguments"
>> 2982
>> 2983 config MIPS_CMDLINE_FROM_BOOTLOADER
>> 2984 bool "Bootloader kernel arguments if available"
>> 2985
>> 2986 config MIPS_CMDLINE_BUILTIN_EXTEND
>> 2987 depends on CMDLINE_BOOL
>> 2988 bool "Extend builtin kernel arguments with bootloader arguments"
>> 2989 endchoice
>> 2990
>> 2991 endmenu
>> 2992
>> 2993 config LOCKDEP_SUPPORT
>> 2994 bool
>> 2995 default y
>> 2996
>> 2997 config STACKTRACE_SUPPORT
>> 2998 bool
527 default y 2999 default y
528 3000
529 if ARC_DBG !! 3001 config PGTABLE_LEVELS
>> 3002 int
>> 3003 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
>> 3004 default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
>> 3005 default 2
>> 3006
>> 3007 config MIPS_AUTO_PFN_OFFSET
>> 3008 bool
>> 3009
>> 3010 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 3011
>> 3012 config PCI_DRIVERS_GENERIC
>> 3013 select PCI_DOMAINS_GENERIC if PCI
>> 3014 bool
>> 3015
>> 3016 config PCI_DRIVERS_LEGACY
>> 3017 def_bool !PCI_DRIVERS_GENERIC
>> 3018 select NO_GENERIC_PCI_IOPORT_MAP
>> 3019 select PCI_DOMAINS if PCI
>> 3020
>> 3021 #
>> 3022 # ISA support is now enabled via select. Too many systems still have the one
>> 3023 # or other ISA chip on the board that users don't know about so don't expect
>> 3024 # users to choose the right thing ...
>> 3025 #
>> 3026 config ISA
>> 3027 bool
>> 3028
>> 3029 config TC
>> 3030 bool "TURBOchannel support"
>> 3031 depends on MACH_DECSTATION
>> 3032 help
>> 3033 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 3034 processors. TURBOchannel programming specifications are available
>> 3035 at:
>> 3036 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
>> 3037 and:
>> 3038 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
>> 3039 Linux driver support status is documented at:
>> 3040 <http://www.linux-mips.org/wiki/DECstation>
530 3041
531 config ARC_DW2_UNWIND !! 3042 config MMU
532 bool "Enable DWARF specific kernel sta !! 3043 bool
533 default y 3044 default y
534 select KALLSYMS <<
535 help <<
536 Compiles the kernel with DWARF unwin <<
537 to get stack backtraces. <<
538 3045
539 If you say Y here the resulting kern !! 3046 config ARCH_MMAP_RND_BITS_MIN
540 but not slower, and it will give ver !! 3047 default 12 if 64BIT
541 If you don't debug the kernel, you c !! 3048 default 8
542 to solve problems without frame unwi !! 3049
>> 3050 config ARCH_MMAP_RND_BITS_MAX
>> 3051 default 18 if 64BIT
>> 3052 default 15
>> 3053
>> 3054 config ARCH_MMAP_RND_COMPAT_BITS_MIN
>> 3055 default 8
>> 3056
>> 3057 config ARCH_MMAP_RND_COMPAT_BITS_MAX
>> 3058 default 15
>> 3059
>> 3060 config I8253
>> 3061 bool
>> 3062 select CLKSRC_I8253
>> 3063 select CLKEVT_I8253
>> 3064 select MIPS_EXTERNAL_TIMER
>> 3065 endmenu
>> 3066
>> 3067 config TRAD_SIGNALS
>> 3068 bool
543 3069
544 config ARC_DBG_JUMP_LABEL !! 3070 config MIPS32_COMPAT
545 bool "Paranoid checks in Static Keys ( !! 3071 bool
546 depends on JUMP_LABEL <<
547 default y if STATIC_KEYS_SELFTEST <<
548 help <<
549 Enable paranoid checks and self-test <<
550 part of static keys (jump labels) re <<
551 endif <<
552 3072
553 config ARC_BUILTIN_DTB_NAME !! 3073 config COMPAT
554 string "Built in DTB" !! 3074 bool
555 help <<
556 Set the name of the DTB to embed in <<
557 Leaving it blank selects the "nsim_7 <<
558 3075
559 endmenu # "ARC Architecture Configuration" !! 3076 config MIPS32_O32
>> 3077 bool "Kernel support for o32 binaries"
>> 3078 depends on 64BIT
>> 3079 select ARCH_WANT_OLD_COMPAT_IPC
>> 3080 select COMPAT
>> 3081 select MIPS32_COMPAT
>> 3082 help
>> 3083 Select this option if you want to run o32 binaries. These are pure
>> 3084 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 3085 existing binaries are in this format.
>> 3086
>> 3087 If unsure, say Y.
>> 3088
>> 3089 config MIPS32_N32
>> 3090 bool "Kernel support for n32 binaries"
>> 3091 depends on 64BIT
>> 3092 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
>> 3093 select COMPAT
>> 3094 select MIPS32_COMPAT
>> 3095 help
>> 3096 Select this option if you want to run n32 binaries. These are
>> 3097 64-bit binaries using 32-bit quantities for addressing and certain
>> 3098 data that would normally be 64-bit. They are used in special
>> 3099 cases.
560 3100
561 config ARCH_FORCE_MAX_ORDER !! 3101 If unsure, say N.
562 int "Maximum zone order" !! 3102
563 default "11" if ARC_HUGEPAGE_16M !! 3103 config CC_HAS_MNO_BRANCH_LIKELY
564 default "10" !! 3104 def_bool y
>> 3105 depends on $(cc-option,-mno-branch-likely)
>> 3106
>> 3107 # https://github.com/llvm/llvm-project/issues/61045
>> 3108 config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
>> 3109 def_bool y if CC_IS_CLANG
>> 3110
>> 3111 menu "Power management options"
>> 3112
>> 3113 config ARCH_HIBERNATION_POSSIBLE
>> 3114 def_bool y
>> 3115 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
>> 3116
>> 3117 config ARCH_SUSPEND_POSSIBLE
>> 3118 def_bool y
>> 3119 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
565 3120
566 source "kernel/power/Kconfig" 3121 source "kernel/power/Kconfig"
>> 3122
>> 3123 endmenu
>> 3124
>> 3125 config MIPS_EXTERNAL_TIMER
>> 3126 bool
>> 3127
>> 3128 menu "CPU Power Management"
>> 3129
>> 3130 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
>> 3131 source "drivers/cpufreq/Kconfig"
>> 3132 endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
>> 3133
>> 3134 source "drivers/cpuidle/Kconfig"
>> 3135
>> 3136 endmenu
>> 3137
>> 3138 source "arch/mips/kvm/Kconfig"
>> 3139
>> 3140 source "arch/mips/vdso/Kconfig"
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