1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config NIOS2 !! 2 config MIPS
3 def_bool y !! 3 bool
4 select ARCH_32BIT_OFF_T !! 4 default y
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_HAS_DMA_PREP_COHERENT !! 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 7 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 8 select ARCH_HAS_FORTIFY_SOURCE
9 select ARCH_HAS_DMA_SET_UNCACHED !! 9 select ARCH_HAS_KCOV
10 select ARCH_NO_SWAP !! 10 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
11 select COMMON_CLK !! 11 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
12 select TIMER_OF !! 12 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
13 select GENERIC_ATOMIC64 !! 13 select ARCH_HAS_UBSAN_SANITIZE_ALL
14 select GENERIC_CPU_DEVICES !! 14 select ARCH_HAS_GCOV_PROFILE_ALL
>> 15 select ARCH_KEEP_MEMBLOCK
>> 16 select ARCH_SUPPORTS_UPROBES
>> 17 select ARCH_USE_BUILTIN_BSWAP
>> 18 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
>> 19 select ARCH_USE_MEMTEST
>> 20 select ARCH_USE_QUEUED_RWLOCKS
>> 21 select ARCH_USE_QUEUED_SPINLOCKS
>> 22 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
>> 23 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
>> 24 select ARCH_WANT_IPC_PARSE_VERSION
>> 25 select ARCH_WANT_LD_ORPHAN_WARN
>> 26 select BUILDTIME_TABLE_SORT
>> 27 select CLONE_BACKWARDS
>> 28 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
>> 29 select CPU_PM if CPU_IDLE
>> 30 select GENERIC_ATOMIC64 if !64BIT
>> 31 select GENERIC_CMOS_UPDATE
>> 32 select GENERIC_CPU_AUTOPROBE
>> 33 select GENERIC_FIND_FIRST_BIT
>> 34 select GENERIC_GETTIMEOFDAY
>> 35 select GENERIC_IOMAP
15 select GENERIC_IRQ_PROBE 36 select GENERIC_IRQ_PROBE
16 select GENERIC_IRQ_SHOW 37 select GENERIC_IRQ_SHOW
>> 38 select GENERIC_ISA_DMA if EISA
>> 39 select GENERIC_LIB_ASHLDI3
>> 40 select GENERIC_LIB_ASHRDI3
>> 41 select GENERIC_LIB_CMPDI2
>> 42 select GENERIC_LIB_LSHRDI3
>> 43 select GENERIC_LIB_UCMPDI2
>> 44 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
>> 45 select GENERIC_SMP_IDLE_THREAD
>> 46 select GENERIC_TIME_VSYSCALL
>> 47 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
>> 48 select HANDLE_DOMAIN_IRQ
>> 49 select HAVE_ARCH_COMPILER_H
>> 50 select HAVE_ARCH_JUMP_LABEL
>> 51 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
>> 52 select HAVE_ARCH_MMAP_RND_BITS if MMU
>> 53 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
>> 54 select HAVE_ARCH_SECCOMP_FILTER
17 select HAVE_ARCH_TRACEHOOK 55 select HAVE_ARCH_TRACEHOOK
18 select HAVE_ARCH_KGDB !! 56 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
19 select HAVE_PAGE_SIZE_4KB !! 57 select HAVE_ASM_MODVERSIONS
>> 58 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
>> 59 select HAVE_CONTEXT_TRACKING
>> 60 select HAVE_TIF_NOHZ
>> 61 select HAVE_C_RECORDMCOUNT
>> 62 select HAVE_DEBUG_KMEMLEAK
>> 63 select HAVE_DEBUG_STACKOVERFLOW
>> 64 select HAVE_DMA_CONTIGUOUS
>> 65 select HAVE_DYNAMIC_FTRACE
>> 66 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
>> 67 select HAVE_EXIT_THREAD
>> 68 select HAVE_FAST_GUP
>> 69 select HAVE_FTRACE_MCOUNT_RECORD
>> 70 select HAVE_FUNCTION_GRAPH_TRACER
>> 71 select HAVE_FUNCTION_TRACER
>> 72 select HAVE_GCC_PLUGINS
>> 73 select HAVE_GENERIC_VDSO
>> 74 select HAVE_IOREMAP_PROT
>> 75 select HAVE_IRQ_EXIT_ON_IRQ_STACK
>> 76 select HAVE_IRQ_TIME_ACCOUNTING
>> 77 select HAVE_KPROBES
>> 78 select HAVE_KRETPROBES
>> 79 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
>> 80 select HAVE_MOD_ARCH_SPECIFIC
>> 81 select HAVE_NMI
>> 82 select HAVE_PERF_EVENTS
>> 83 select HAVE_PERF_REGS
>> 84 select HAVE_PERF_USER_STACK_DUMP
>> 85 select HAVE_REGS_AND_STACK_ACCESS_API
>> 86 select HAVE_RSEQ
>> 87 select HAVE_SPARSE_SYSCALL_NR
>> 88 select HAVE_STACKPROTECTOR
>> 89 select HAVE_SYSCALL_TRACEPOINTS
>> 90 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
>> 91 select IRQ_FORCED_THREADING
>> 92 select ISA if EISA
>> 93 select MODULES_USE_ELF_REL if MODULES
>> 94 select MODULES_USE_ELF_RELA if MODULES && 64BIT
>> 95 select PERF_USE_VMALLOC
>> 96 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
>> 97 select RTC_LIB
>> 98 select SYSCTL_EXCEPTION_TRACE
>> 99 select VIRT_TO_BUS
>> 100 select ARCH_HAS_ELFCORE_COMPAT
>> 101
>> 102 config MIPS_FIXUP_BIGPHYS_ADDR
>> 103 bool
>> 104
>> 105 config MIPS_GENERIC
>> 106 bool
>> 107
>> 108 config MACH_INGENIC
>> 109 bool
>> 110 select SYS_SUPPORTS_32BIT_KERNEL
>> 111 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 112 select SYS_SUPPORTS_ZBOOT
>> 113 select DMA_NONCOHERENT
>> 114 select ARCH_HAS_SYNC_DMA_FOR_CPU
>> 115 select IRQ_MIPS_CPU
>> 116 select PINCTRL
>> 117 select GPIOLIB
>> 118 select COMMON_CLK
>> 119 select GENERIC_IRQ_CHIP
>> 120 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
>> 121 select USE_OF
>> 122 select CPU_SUPPORTS_CPUFREQ
>> 123 select MIPS_EXTERNAL_TIMER
>> 124
>> 125 menu "Machine selection"
>> 126
>> 127 choice
>> 128 prompt "System type"
>> 129 default MIPS_GENERIC_KERNEL
>> 130
>> 131 config MIPS_GENERIC_KERNEL
>> 132 bool "Generic board-agnostic MIPS kernel"
>> 133 select ARCH_HAS_SETUP_DMA_OPS
>> 134 select MIPS_GENERIC
>> 135 select BOOT_RAW
>> 136 select BUILTIN_DTB
>> 137 select CEVT_R4K
>> 138 select CLKSRC_MIPS_GIC
>> 139 select COMMON_CLK
>> 140 select CPU_MIPSR2_IRQ_EI
>> 141 select CPU_MIPSR2_IRQ_VI
>> 142 select CSRC_R4K
>> 143 select DMA_NONCOHERENT
>> 144 select HAVE_PCI
>> 145 select IRQ_MIPS_CPU
>> 146 select MIPS_AUTO_PFN_OFFSET
>> 147 select MIPS_CPU_SCACHE
>> 148 select MIPS_GIC
>> 149 select MIPS_L1_CACHE_SHIFT_7
>> 150 select NO_EXCEPT_FILL
>> 151 select PCI_DRIVERS_GENERIC
>> 152 select SMP_UP if SMP
>> 153 select SWAP_IO_SPACE
>> 154 select SYS_HAS_CPU_MIPS32_R1
>> 155 select SYS_HAS_CPU_MIPS32_R2
>> 156 select SYS_HAS_CPU_MIPS32_R6
>> 157 select SYS_HAS_CPU_MIPS64_R1
>> 158 select SYS_HAS_CPU_MIPS64_R2
>> 159 select SYS_HAS_CPU_MIPS64_R6
>> 160 select SYS_SUPPORTS_32BIT_KERNEL
>> 161 select SYS_SUPPORTS_64BIT_KERNEL
>> 162 select SYS_SUPPORTS_BIG_ENDIAN
>> 163 select SYS_SUPPORTS_HIGHMEM
>> 164 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 165 select SYS_SUPPORTS_MICROMIPS
>> 166 select SYS_SUPPORTS_MIPS16
>> 167 select SYS_SUPPORTS_MIPS_CPS
>> 168 select SYS_SUPPORTS_MULTITHREADING
>> 169 select SYS_SUPPORTS_RELOCATABLE
>> 170 select SYS_SUPPORTS_SMARTMIPS
>> 171 select SYS_SUPPORTS_ZBOOT
>> 172 select UHI_BOOT
>> 173 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 174 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 175 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 176 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 177 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 178 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 179 select USE_OF
>> 180 help
>> 181 Select this to build a kernel which aims to support multiple boards,
>> 182 generally using a flattened device tree passed from the bootloader
>> 183 using the boot protocol defined in the UHI (Unified Hosting
>> 184 Interface) specification.
>> 185
>> 186 config MIPS_ALCHEMY
>> 187 bool "Alchemy processor based machines"
>> 188 select PHYS_ADDR_T_64BIT
>> 189 select CEVT_R4K
>> 190 select CSRC_R4K
>> 191 select IRQ_MIPS_CPU
>> 192 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is
>> 193 select MIPS_FIXUP_BIGPHYS_ADDR if PCI
>> 194 select SYS_HAS_CPU_MIPS32_R1
>> 195 select SYS_SUPPORTS_32BIT_KERNEL
>> 196 select SYS_SUPPORTS_APM_EMULATION
>> 197 select GPIOLIB
>> 198 select SYS_SUPPORTS_ZBOOT
>> 199 select COMMON_CLK
>> 200
>> 201 config AR7
>> 202 bool "Texas Instruments AR7"
>> 203 select BOOT_ELF32
>> 204 select COMMON_CLK
>> 205 select DMA_NONCOHERENT
>> 206 select CEVT_R4K
>> 207 select CSRC_R4K
>> 208 select IRQ_MIPS_CPU
>> 209 select NO_EXCEPT_FILL
>> 210 select SWAP_IO_SPACE
>> 211 select SYS_HAS_CPU_MIPS32_R1
>> 212 select SYS_HAS_EARLY_PRINTK
>> 213 select SYS_SUPPORTS_32BIT_KERNEL
>> 214 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 215 select SYS_SUPPORTS_MIPS16
>> 216 select SYS_SUPPORTS_ZBOOT_UART16550
>> 217 select GPIOLIB
>> 218 select VLYNQ
>> 219 help
>> 220 Support for the Texas Instruments AR7 System-on-a-Chip
>> 221 family: TNETD7100, 7200 and 7300.
>> 222
>> 223 config ATH25
>> 224 bool "Atheros AR231x/AR531x SoC support"
>> 225 select CEVT_R4K
>> 226 select CSRC_R4K
>> 227 select DMA_NONCOHERENT
>> 228 select IRQ_MIPS_CPU
20 select IRQ_DOMAIN 229 select IRQ_DOMAIN
21 select LOCK_MM_AND_FIND_VMA !! 230 select SYS_HAS_CPU_MIPS32_R1
22 select MODULES_USE_ELF_RELA !! 231 select SYS_SUPPORTS_BIG_ENDIAN
23 select OF !! 232 select SYS_SUPPORTS_32BIT_KERNEL
24 select OF_EARLY_FLATTREE !! 233 select SYS_HAS_EARLY_PRINTK
25 select SOC_BUS !! 234 help
26 select SPARSE_IRQ !! 235 Support for Atheros AR231x and Atheros AR531x based boards
27 select USB_ARCH_HAS_HCD if USB_SUPPORT <<
28 select CPU_NO_EFFICIENT_FFS <<
29 select MMU_GATHER_NO_RANGE if MMU <<
30 236
31 config GENERIC_CSUM !! 237 config ATH79
32 def_bool y !! 238 bool "Atheros AR71XX/AR724X/AR913X based boards"
>> 239 select ARCH_HAS_RESET_CONTROLLER
>> 240 select BOOT_RAW
>> 241 select CEVT_R4K
>> 242 select CSRC_R4K
>> 243 select DMA_NONCOHERENT
>> 244 select GPIOLIB
>> 245 select PINCTRL
>> 246 select COMMON_CLK
>> 247 select IRQ_MIPS_CPU
>> 248 select SYS_HAS_CPU_MIPS32_R2
>> 249 select SYS_HAS_EARLY_PRINTK
>> 250 select SYS_SUPPORTS_32BIT_KERNEL
>> 251 select SYS_SUPPORTS_BIG_ENDIAN
>> 252 select SYS_SUPPORTS_MIPS16
>> 253 select SYS_SUPPORTS_ZBOOT_UART_PROM
>> 254 select USE_OF
>> 255 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
>> 256 help
>> 257 Support for the Atheros AR71XX/AR724X/AR913X SoCs.
>> 258
>> 259 config BMIPS_GENERIC
>> 260 bool "Broadcom Generic BMIPS kernel"
>> 261 select ARCH_HAS_RESET_CONTROLLER
>> 262 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
>> 263 select ARCH_HAS_PHYS_TO_DMA
>> 264 select BOOT_RAW
>> 265 select NO_EXCEPT_FILL
>> 266 select USE_OF
>> 267 select CEVT_R4K
>> 268 select CSRC_R4K
>> 269 select SYNC_R4K
>> 270 select COMMON_CLK
>> 271 select BCM6345_L1_IRQ
>> 272 select BCM7038_L1_IRQ
>> 273 select BCM7120_L2_IRQ
>> 274 select BRCMSTB_L2_IRQ
>> 275 select IRQ_MIPS_CPU
>> 276 select DMA_NONCOHERENT
>> 277 select SYS_SUPPORTS_32BIT_KERNEL
>> 278 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 279 select SYS_SUPPORTS_BIG_ENDIAN
>> 280 select SYS_SUPPORTS_HIGHMEM
>> 281 select SYS_HAS_CPU_BMIPS32_3300
>> 282 select SYS_HAS_CPU_BMIPS4350
>> 283 select SYS_HAS_CPU_BMIPS4380
>> 284 select SYS_HAS_CPU_BMIPS5000
>> 285 select SWAP_IO_SPACE
>> 286 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 287 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 288 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
>> 289 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 290 select HARDIRQS_SW_RESEND
>> 291 help
>> 292 Build a generic DT-based kernel image that boots on select
>> 293 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
>> 294 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
>> 295 must be set appropriately for your board.
>> 296
>> 297 config BCM47XX
>> 298 bool "Broadcom BCM47XX based boards"
>> 299 select BOOT_RAW
>> 300 select CEVT_R4K
>> 301 select CSRC_R4K
>> 302 select DMA_NONCOHERENT
>> 303 select HAVE_PCI
>> 304 select IRQ_MIPS_CPU
>> 305 select SYS_HAS_CPU_MIPS32_R1
>> 306 select NO_EXCEPT_FILL
>> 307 select SYS_SUPPORTS_32BIT_KERNEL
>> 308 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 309 select SYS_SUPPORTS_MIPS16
>> 310 select SYS_SUPPORTS_ZBOOT
>> 311 select SYS_HAS_EARLY_PRINTK
>> 312 select USE_GENERIC_EARLY_PRINTK_8250
>> 313 select GPIOLIB
>> 314 select LEDS_GPIO_REGISTER
>> 315 select BCM47XX_NVRAM
>> 316 select BCM47XX_SPROM
>> 317 select BCM47XX_SSB if !BCM47XX_BCMA
>> 318 help
>> 319 Support for BCM47XX based boards
>> 320
>> 321 config BCM63XX
>> 322 bool "Broadcom BCM63XX based boards"
>> 323 select BOOT_RAW
>> 324 select CEVT_R4K
>> 325 select CSRC_R4K
>> 326 select SYNC_R4K
>> 327 select DMA_NONCOHERENT
>> 328 select IRQ_MIPS_CPU
>> 329 select SYS_SUPPORTS_32BIT_KERNEL
>> 330 select SYS_SUPPORTS_BIG_ENDIAN
>> 331 select SYS_HAS_EARLY_PRINTK
>> 332 select SWAP_IO_SPACE
>> 333 select GPIOLIB
>> 334 select MIPS_L1_CACHE_SHIFT_4
>> 335 select HAVE_LEGACY_CLK
>> 336 help
>> 337 Support for BCM63XX based boards
>> 338
>> 339 config MIPS_COBALT
>> 340 bool "Cobalt Server"
>> 341 select CEVT_R4K
>> 342 select CSRC_R4K
>> 343 select CEVT_GT641XX
>> 344 select DMA_NONCOHERENT
>> 345 select FORCE_PCI
>> 346 select I8253
>> 347 select I8259
>> 348 select IRQ_MIPS_CPU
>> 349 select IRQ_GT641XX
>> 350 select PCI_GT64XXX_PCI0
>> 351 select SYS_HAS_CPU_NEVADA
>> 352 select SYS_HAS_EARLY_PRINTK
>> 353 select SYS_SUPPORTS_32BIT_KERNEL
>> 354 select SYS_SUPPORTS_64BIT_KERNEL
>> 355 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 356 select USE_GENERIC_EARLY_PRINTK_8250
>> 357
>> 358 config MACH_DECSTATION
>> 359 bool "DECstations"
>> 360 select BOOT_ELF32
>> 361 select CEVT_DS1287
>> 362 select CEVT_R4K if CPU_R4X00
>> 363 select CSRC_IOASIC
>> 364 select CSRC_R4K if CPU_R4X00
>> 365 select CPU_DADDI_WORKAROUNDS if 64BIT
>> 366 select CPU_R4000_WORKAROUNDS if 64BIT
>> 367 select CPU_R4400_WORKAROUNDS if 64BIT
>> 368 select DMA_NONCOHERENT
>> 369 select NO_IOPORT_MAP
>> 370 select IRQ_MIPS_CPU
>> 371 select SYS_HAS_CPU_R3000
>> 372 select SYS_HAS_CPU_R4X00
>> 373 select SYS_SUPPORTS_32BIT_KERNEL
>> 374 select SYS_SUPPORTS_64BIT_KERNEL
>> 375 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 376 select SYS_SUPPORTS_128HZ
>> 377 select SYS_SUPPORTS_256HZ
>> 378 select SYS_SUPPORTS_1024HZ
>> 379 select MIPS_L1_CACHE_SHIFT_4
>> 380 help
>> 381 This enables support for DEC's MIPS based workstations. For details
>> 382 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
>> 383 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 384
>> 385 If you have one of the following DECstation Models you definitely
>> 386 want to choose R4xx0 for the CPU Type:
>> 387
>> 388 DECstation 5000/50
>> 389 DECstation 5000/150
>> 390 DECstation 5000/260
>> 391 DECsystem 5900/260
>> 392
>> 393 otherwise choose R3000.
>> 394
>> 395 config MACH_JAZZ
>> 396 bool "Jazz family of machines"
>> 397 select ARC_MEMORY
>> 398 select ARC_PROMLIB
>> 399 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 400 select ARCH_MIGHT_HAVE_PC_SERIO
>> 401 select DMA_OPS
>> 402 select FW_ARC
>> 403 select FW_ARC32
>> 404 select ARCH_MAY_HAVE_PC_FDC
>> 405 select CEVT_R4K
>> 406 select CSRC_R4K
>> 407 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 408 select GENERIC_ISA_DMA
>> 409 select HAVE_PCSPKR_PLATFORM
>> 410 select IRQ_MIPS_CPU
>> 411 select I8253
>> 412 select I8259
>> 413 select ISA
>> 414 select SYS_HAS_CPU_R4X00
>> 415 select SYS_SUPPORTS_32BIT_KERNEL
>> 416 select SYS_SUPPORTS_64BIT_KERNEL
>> 417 select SYS_SUPPORTS_100HZ
>> 418 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 419 help
>> 420 This a family of machines based on the MIPS R4030 chipset which was
>> 421 used by several vendors to build RISC/os and Windows NT workstations.
>> 422 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
>> 423 Olivetti M700-10 workstations.
>> 424
>> 425 config MACH_INGENIC_SOC
>> 426 bool "Ingenic SoC based machines"
>> 427 select MIPS_GENERIC
>> 428 select MACH_INGENIC
>> 429 select SYS_SUPPORTS_ZBOOT_UART16550
>> 430 select CPU_SUPPORTS_CPUFREQ
>> 431 select MIPS_EXTERNAL_TIMER
>> 432
>> 433 config LANTIQ
>> 434 bool "Lantiq based platforms"
>> 435 select DMA_NONCOHERENT
>> 436 select IRQ_MIPS_CPU
>> 437 select CEVT_R4K
>> 438 select CSRC_R4K
>> 439 select SYS_HAS_CPU_MIPS32_R1
>> 440 select SYS_HAS_CPU_MIPS32_R2
>> 441 select SYS_SUPPORTS_BIG_ENDIAN
>> 442 select SYS_SUPPORTS_32BIT_KERNEL
>> 443 select SYS_SUPPORTS_MIPS16
>> 444 select SYS_SUPPORTS_MULTITHREADING
>> 445 select SYS_SUPPORTS_VPE_LOADER
>> 446 select SYS_HAS_EARLY_PRINTK
>> 447 select GPIOLIB
>> 448 select SWAP_IO_SPACE
>> 449 select BOOT_RAW
>> 450 select HAVE_LEGACY_CLK
>> 451 select USE_OF
>> 452 select PINCTRL
>> 453 select PINCTRL_LANTIQ
>> 454 select ARCH_HAS_RESET_CONTROLLER
>> 455 select RESET_CONTROLLER
>> 456
>> 457 config MACH_LOONGSON32
>> 458 bool "Loongson 32-bit family of machines"
>> 459 select SYS_SUPPORTS_ZBOOT
>> 460 help
>> 461 This enables support for the Loongson-1 family of machines.
>> 462
>> 463 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
>> 464 the Institute of Computing Technology (ICT), Chinese Academy of
>> 465 Sciences (CAS).
>> 466
>> 467 config MACH_LOONGSON2EF
>> 468 bool "Loongson-2E/F family of machines"
>> 469 select SYS_SUPPORTS_ZBOOT
>> 470 help
>> 471 This enables the support of early Loongson-2E/F family of machines.
>> 472
>> 473 config MACH_LOONGSON64
>> 474 bool "Loongson 64-bit family of machines"
>> 475 select ARCH_SPARSEMEM_ENABLE
>> 476 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 477 select ARCH_MIGHT_HAVE_PC_SERIO
>> 478 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 479 select BOOT_ELF32
>> 480 select BOARD_SCACHE
>> 481 select CSRC_R4K
>> 482 select CEVT_R4K
>> 483 select CPU_HAS_WB
>> 484 select FORCE_PCI
>> 485 select ISA
>> 486 select I8259
>> 487 select IRQ_MIPS_CPU
>> 488 select NO_EXCEPT_FILL
>> 489 select NR_CPUS_DEFAULT_64
>> 490 select USE_GENERIC_EARLY_PRINTK_8250
>> 491 select PCI_DRIVERS_GENERIC
>> 492 select SYS_HAS_CPU_LOONGSON64
>> 493 select SYS_HAS_EARLY_PRINTK
>> 494 select SYS_SUPPORTS_SMP
>> 495 select SYS_SUPPORTS_HOTPLUG_CPU
>> 496 select SYS_SUPPORTS_NUMA
>> 497 select SYS_SUPPORTS_64BIT_KERNEL
>> 498 select SYS_SUPPORTS_HIGHMEM
>> 499 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 500 select SYS_SUPPORTS_ZBOOT
>> 501 select SYS_SUPPORTS_RELOCATABLE
>> 502 select ZONE_DMA32
>> 503 select COMMON_CLK
>> 504 select USE_OF
>> 505 select BUILTIN_DTB
>> 506 select PCI_HOST_GENERIC
>> 507 help
>> 508 This enables the support of Loongson-2/3 family of machines.
>> 509
>> 510 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
>> 511 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
>> 512 and Loongson-2F which will be removed), developed by the Institute
>> 513 of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
>> 514
>> 515 config MACH_PISTACHIO
>> 516 bool "IMG Pistachio SoC based boards"
>> 517 select BOOT_ELF32
>> 518 select BOOT_RAW
>> 519 select CEVT_R4K
>> 520 select CLKSRC_MIPS_GIC
>> 521 select COMMON_CLK
>> 522 select CSRC_R4K
>> 523 select DMA_NONCOHERENT
>> 524 select GPIOLIB
>> 525 select IRQ_MIPS_CPU
>> 526 select MFD_SYSCON
>> 527 select MIPS_CPU_SCACHE
>> 528 select MIPS_GIC
>> 529 select PINCTRL
>> 530 select REGULATOR
>> 531 select SYS_HAS_CPU_MIPS32_R2
>> 532 select SYS_SUPPORTS_32BIT_KERNEL
>> 533 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 534 select SYS_SUPPORTS_MIPS_CPS
>> 535 select SYS_SUPPORTS_MULTITHREADING
>> 536 select SYS_SUPPORTS_RELOCATABLE
>> 537 select SYS_SUPPORTS_ZBOOT
>> 538 select SYS_HAS_EARLY_PRINTK
>> 539 select USE_GENERIC_EARLY_PRINTK_8250
>> 540 select USE_OF
>> 541 help
>> 542 This enables support for the IMG Pistachio SoC platform.
>> 543
>> 544 config MIPS_MALTA
>> 545 bool "MIPS Malta board"
>> 546 select ARCH_MAY_HAVE_PC_FDC
>> 547 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 548 select ARCH_MIGHT_HAVE_PC_SERIO
>> 549 select BOOT_ELF32
>> 550 select BOOT_RAW
>> 551 select BUILTIN_DTB
>> 552 select CEVT_R4K
>> 553 select CLKSRC_MIPS_GIC
>> 554 select COMMON_CLK
>> 555 select CSRC_R4K
>> 556 select DMA_NONCOHERENT
>> 557 select GENERIC_ISA_DMA
>> 558 select HAVE_PCSPKR_PLATFORM
>> 559 select HAVE_PCI
>> 560 select I8253
>> 561 select I8259
>> 562 select IRQ_MIPS_CPU
>> 563 select MIPS_BONITO64
>> 564 select MIPS_CPU_SCACHE
>> 565 select MIPS_GIC
>> 566 select MIPS_L1_CACHE_SHIFT_6
>> 567 select MIPS_MSC
>> 568 select PCI_GT64XXX_PCI0
>> 569 select SMP_UP if SMP
>> 570 select SWAP_IO_SPACE
>> 571 select SYS_HAS_CPU_MIPS32_R1
>> 572 select SYS_HAS_CPU_MIPS32_R2
>> 573 select SYS_HAS_CPU_MIPS32_R3_5
>> 574 select SYS_HAS_CPU_MIPS32_R5
>> 575 select SYS_HAS_CPU_MIPS32_R6
>> 576 select SYS_HAS_CPU_MIPS64_R1
>> 577 select SYS_HAS_CPU_MIPS64_R2
>> 578 select SYS_HAS_CPU_MIPS64_R6
>> 579 select SYS_HAS_CPU_NEVADA
>> 580 select SYS_HAS_CPU_RM7000
>> 581 select SYS_SUPPORTS_32BIT_KERNEL
>> 582 select SYS_SUPPORTS_64BIT_KERNEL
>> 583 select SYS_SUPPORTS_BIG_ENDIAN
>> 584 select SYS_SUPPORTS_HIGHMEM
>> 585 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 586 select SYS_SUPPORTS_MICROMIPS
>> 587 select SYS_SUPPORTS_MIPS16
>> 588 select SYS_SUPPORTS_MIPS_CMP
>> 589 select SYS_SUPPORTS_MIPS_CPS
>> 590 select SYS_SUPPORTS_MULTITHREADING
>> 591 select SYS_SUPPORTS_RELOCATABLE
>> 592 select SYS_SUPPORTS_SMARTMIPS
>> 593 select SYS_SUPPORTS_VPE_LOADER
>> 594 select SYS_SUPPORTS_ZBOOT
>> 595 select USE_OF
>> 596 select WAR_ICACHE_REFILLS
>> 597 select ZONE_DMA32 if 64BIT
>> 598 help
>> 599 This enables support for the MIPS Technologies Malta evaluation
>> 600 board.
>> 601
>> 602 config MACH_PIC32
>> 603 bool "Microchip PIC32 Family"
>> 604 help
>> 605 This enables support for the Microchip PIC32 family of platforms.
>> 606
>> 607 Microchip PIC32 is a family of general-purpose 32 bit MIPS core
>> 608 microcontrollers.
>> 609
>> 610 config MACH_VR41XX
>> 611 bool "NEC VR4100 series based machines"
>> 612 select CEVT_R4K
>> 613 select CSRC_R4K
>> 614 select SYS_HAS_CPU_VR41XX
>> 615 select SYS_SUPPORTS_MIPS16
>> 616 select GPIOLIB
>> 617
>> 618 config MACH_NINTENDO64
>> 619 bool "Nintendo 64 console"
>> 620 select CEVT_R4K
>> 621 select CSRC_R4K
>> 622 select SYS_HAS_CPU_R4300
>> 623 select SYS_SUPPORTS_BIG_ENDIAN
>> 624 select SYS_SUPPORTS_ZBOOT
>> 625 select SYS_SUPPORTS_32BIT_KERNEL
>> 626 select SYS_SUPPORTS_64BIT_KERNEL
>> 627 select DMA_NONCOHERENT
>> 628 select IRQ_MIPS_CPU
>> 629
>> 630 config RALINK
>> 631 bool "Ralink based machines"
>> 632 select CEVT_R4K
>> 633 select COMMON_CLK
>> 634 select CSRC_R4K
>> 635 select BOOT_RAW
>> 636 select DMA_NONCOHERENT
>> 637 select IRQ_MIPS_CPU
>> 638 select USE_OF
>> 639 select SYS_HAS_CPU_MIPS32_R1
>> 640 select SYS_HAS_CPU_MIPS32_R2
>> 641 select SYS_SUPPORTS_32BIT_KERNEL
>> 642 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 643 select SYS_SUPPORTS_MIPS16
>> 644 select SYS_SUPPORTS_ZBOOT
>> 645 select SYS_HAS_EARLY_PRINTK
>> 646 select ARCH_HAS_RESET_CONTROLLER
>> 647 select RESET_CONTROLLER
>> 648
>> 649 config MACH_REALTEK_RTL
>> 650 bool "Realtek RTL838x/RTL839x based machines"
>> 651 select MIPS_GENERIC
>> 652 select DMA_NONCOHERENT
>> 653 select IRQ_MIPS_CPU
>> 654 select CSRC_R4K
>> 655 select CEVT_R4K
>> 656 select SYS_HAS_CPU_MIPS32_R1
>> 657 select SYS_HAS_CPU_MIPS32_R2
>> 658 select SYS_SUPPORTS_BIG_ENDIAN
>> 659 select SYS_SUPPORTS_32BIT_KERNEL
>> 660 select SYS_SUPPORTS_MIPS16
>> 661 select SYS_SUPPORTS_MULTITHREADING
>> 662 select SYS_SUPPORTS_VPE_LOADER
>> 663 select SYS_HAS_EARLY_PRINTK
>> 664 select SYS_HAS_EARLY_PRINTK_8250
>> 665 select USE_GENERIC_EARLY_PRINTK_8250
>> 666 select BOOT_RAW
>> 667 select PINCTRL
>> 668 select USE_OF
>> 669
>> 670 config SGI_IP22
>> 671 bool "SGI IP22 (Indy/Indigo2)"
>> 672 select ARC_MEMORY
>> 673 select ARC_PROMLIB
>> 674 select FW_ARC
>> 675 select FW_ARC32
>> 676 select ARCH_MIGHT_HAVE_PC_SERIO
>> 677 select BOOT_ELF32
>> 678 select CEVT_R4K
>> 679 select CSRC_R4K
>> 680 select DEFAULT_SGI_PARTITION
>> 681 select DMA_NONCOHERENT
>> 682 select HAVE_EISA
>> 683 select I8253
>> 684 select I8259
>> 685 select IP22_CPU_SCACHE
>> 686 select IRQ_MIPS_CPU
>> 687 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 688 select SGI_HAS_I8042
>> 689 select SGI_HAS_INDYDOG
>> 690 select SGI_HAS_HAL2
>> 691 select SGI_HAS_SEEQ
>> 692 select SGI_HAS_WD93
>> 693 select SGI_HAS_ZILOG
>> 694 select SWAP_IO_SPACE
>> 695 select SYS_HAS_CPU_R4X00
>> 696 select SYS_HAS_CPU_R5000
>> 697 select SYS_HAS_EARLY_PRINTK
>> 698 select SYS_SUPPORTS_32BIT_KERNEL
>> 699 select SYS_SUPPORTS_64BIT_KERNEL
>> 700 select SYS_SUPPORTS_BIG_ENDIAN
>> 701 select WAR_R4600_V1_INDEX_ICACHEOP
>> 702 select WAR_R4600_V1_HIT_CACHEOP
>> 703 select WAR_R4600_V2_HIT_CACHEOP
>> 704 select MIPS_L1_CACHE_SHIFT_7
>> 705 help
>> 706 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 707 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 708 that runs on these, say Y here.
>> 709
>> 710 config SGI_IP27
>> 711 bool "SGI IP27 (Origin200/2000)"
>> 712 select ARCH_HAS_PHYS_TO_DMA
>> 713 select ARCH_SPARSEMEM_ENABLE
>> 714 select FW_ARC
>> 715 select FW_ARC64
>> 716 select ARC_CMDLINE_ONLY
>> 717 select BOOT_ELF64
>> 718 select DEFAULT_SGI_PARTITION
>> 719 select FORCE_PCI
>> 720 select SYS_HAS_EARLY_PRINTK
>> 721 select HAVE_PCI
>> 722 select IRQ_MIPS_CPU
>> 723 select IRQ_DOMAIN_HIERARCHY
>> 724 select NR_CPUS_DEFAULT_64
>> 725 select PCI_DRIVERS_GENERIC
>> 726 select PCI_XTALK_BRIDGE
>> 727 select SYS_HAS_CPU_R10000
>> 728 select SYS_SUPPORTS_64BIT_KERNEL
>> 729 select SYS_SUPPORTS_BIG_ENDIAN
>> 730 select SYS_SUPPORTS_NUMA
>> 731 select SYS_SUPPORTS_SMP
>> 732 select WAR_R10000_LLSC
>> 733 select MIPS_L1_CACHE_SHIFT_7
>> 734 select NUMA
>> 735 help
>> 736 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 737 workstations. To compile a Linux kernel that runs on these, say Y
>> 738 here.
>> 739
>> 740 config SGI_IP28
>> 741 bool "SGI IP28 (Indigo2 R10k)"
>> 742 select ARC_MEMORY
>> 743 select ARC_PROMLIB
>> 744 select FW_ARC
>> 745 select FW_ARC64
>> 746 select ARCH_MIGHT_HAVE_PC_SERIO
>> 747 select BOOT_ELF64
>> 748 select CEVT_R4K
>> 749 select CSRC_R4K
>> 750 select DEFAULT_SGI_PARTITION
>> 751 select DMA_NONCOHERENT
>> 752 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 753 select IRQ_MIPS_CPU
>> 754 select HAVE_EISA
>> 755 select I8253
>> 756 select I8259
>> 757 select SGI_HAS_I8042
>> 758 select SGI_HAS_INDYDOG
>> 759 select SGI_HAS_HAL2
>> 760 select SGI_HAS_SEEQ
>> 761 select SGI_HAS_WD93
>> 762 select SGI_HAS_ZILOG
>> 763 select SWAP_IO_SPACE
>> 764 select SYS_HAS_CPU_R10000
>> 765 select SYS_HAS_EARLY_PRINTK
>> 766 select SYS_SUPPORTS_64BIT_KERNEL
>> 767 select SYS_SUPPORTS_BIG_ENDIAN
>> 768 select WAR_R10000_LLSC
>> 769 select MIPS_L1_CACHE_SHIFT_7
>> 770 help
>> 771 This is the SGI Indigo2 with R10000 processor. To compile a Linux
>> 772 kernel that runs on these, say Y here.
>> 773
>> 774 config SGI_IP30
>> 775 bool "SGI IP30 (Octane/Octane2)"
>> 776 select ARCH_HAS_PHYS_TO_DMA
>> 777 select FW_ARC
>> 778 select FW_ARC64
>> 779 select BOOT_ELF64
>> 780 select CEVT_R4K
>> 781 select CSRC_R4K
>> 782 select FORCE_PCI
>> 783 select SYNC_R4K if SMP
>> 784 select ZONE_DMA32
>> 785 select HAVE_PCI
>> 786 select IRQ_MIPS_CPU
>> 787 select IRQ_DOMAIN_HIERARCHY
>> 788 select NR_CPUS_DEFAULT_2
>> 789 select PCI_DRIVERS_GENERIC
>> 790 select PCI_XTALK_BRIDGE
>> 791 select SYS_HAS_EARLY_PRINTK
>> 792 select SYS_HAS_CPU_R10000
>> 793 select SYS_SUPPORTS_64BIT_KERNEL
>> 794 select SYS_SUPPORTS_BIG_ENDIAN
>> 795 select SYS_SUPPORTS_SMP
>> 796 select WAR_R10000_LLSC
>> 797 select MIPS_L1_CACHE_SHIFT_7
>> 798 select ARC_MEMORY
>> 799 help
>> 800 These are the SGI Octane and Octane2 graphics workstations. To
>> 801 compile a Linux kernel that runs on these, say Y here.
>> 802
>> 803 config SGI_IP32
>> 804 bool "SGI IP32 (O2)"
>> 805 select ARC_MEMORY
>> 806 select ARC_PROMLIB
>> 807 select ARCH_HAS_PHYS_TO_DMA
>> 808 select FW_ARC
>> 809 select FW_ARC32
>> 810 select BOOT_ELF32
>> 811 select CEVT_R4K
>> 812 select CSRC_R4K
>> 813 select DMA_NONCOHERENT
>> 814 select HAVE_PCI
>> 815 select IRQ_MIPS_CPU
>> 816 select R5000_CPU_SCACHE
>> 817 select RM7000_CPU_SCACHE
>> 818 select SYS_HAS_CPU_R5000
>> 819 select SYS_HAS_CPU_R10000 if BROKEN
>> 820 select SYS_HAS_CPU_RM7000
>> 821 select SYS_HAS_CPU_NEVADA
>> 822 select SYS_SUPPORTS_64BIT_KERNEL
>> 823 select SYS_SUPPORTS_BIG_ENDIAN
>> 824 select WAR_ICACHE_REFILLS
>> 825 help
>> 826 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 827
>> 828 config SIBYTE_CRHINE
>> 829 bool "Sibyte BCM91120C-CRhine"
>> 830 select BOOT_ELF32
>> 831 select SIBYTE_BCM1120
>> 832 select SWAP_IO_SPACE
>> 833 select SYS_HAS_CPU_SB1
>> 834 select SYS_SUPPORTS_BIG_ENDIAN
>> 835 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 836
>> 837 config SIBYTE_CARMEL
>> 838 bool "Sibyte BCM91120x-Carmel"
>> 839 select BOOT_ELF32
>> 840 select SIBYTE_BCM1120
>> 841 select SWAP_IO_SPACE
>> 842 select SYS_HAS_CPU_SB1
>> 843 select SYS_SUPPORTS_BIG_ENDIAN
>> 844 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 845
>> 846 config SIBYTE_CRHONE
>> 847 bool "Sibyte BCM91125C-CRhone"
>> 848 select BOOT_ELF32
>> 849 select SIBYTE_BCM1125
>> 850 select SWAP_IO_SPACE
>> 851 select SYS_HAS_CPU_SB1
>> 852 select SYS_SUPPORTS_BIG_ENDIAN
>> 853 select SYS_SUPPORTS_HIGHMEM
>> 854 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 855
>> 856 config SIBYTE_RHONE
>> 857 bool "Sibyte BCM91125E-Rhone"
>> 858 select BOOT_ELF32
>> 859 select SIBYTE_BCM1125H
>> 860 select SWAP_IO_SPACE
>> 861 select SYS_HAS_CPU_SB1
>> 862 select SYS_SUPPORTS_BIG_ENDIAN
>> 863 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 864
>> 865 config SIBYTE_SWARM
>> 866 bool "Sibyte BCM91250A-SWARM"
>> 867 select BOOT_ELF32
>> 868 select HAVE_PATA_PLATFORM
>> 869 select SIBYTE_SB1250
>> 870 select SWAP_IO_SPACE
>> 871 select SYS_HAS_CPU_SB1
>> 872 select SYS_SUPPORTS_BIG_ENDIAN
>> 873 select SYS_SUPPORTS_HIGHMEM
>> 874 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 875 select ZONE_DMA32 if 64BIT
>> 876 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 877
>> 878 config SIBYTE_LITTLESUR
>> 879 bool "Sibyte BCM91250C2-LittleSur"
>> 880 select BOOT_ELF32
>> 881 select HAVE_PATA_PLATFORM
>> 882 select SIBYTE_SB1250
>> 883 select SWAP_IO_SPACE
>> 884 select SYS_HAS_CPU_SB1
>> 885 select SYS_SUPPORTS_BIG_ENDIAN
>> 886 select SYS_SUPPORTS_HIGHMEM
>> 887 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 888 select ZONE_DMA32 if 64BIT
>> 889
>> 890 config SIBYTE_SENTOSA
>> 891 bool "Sibyte BCM91250E-Sentosa"
>> 892 select BOOT_ELF32
>> 893 select SIBYTE_SB1250
>> 894 select SWAP_IO_SPACE
>> 895 select SYS_HAS_CPU_SB1
>> 896 select SYS_SUPPORTS_BIG_ENDIAN
>> 897 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 898 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 899
>> 900 config SIBYTE_BIGSUR
>> 901 bool "Sibyte BCM91480B-BigSur"
>> 902 select BOOT_ELF32
>> 903 select NR_CPUS_DEFAULT_4
>> 904 select SIBYTE_BCM1x80
>> 905 select SWAP_IO_SPACE
>> 906 select SYS_HAS_CPU_SB1
>> 907 select SYS_SUPPORTS_BIG_ENDIAN
>> 908 select SYS_SUPPORTS_HIGHMEM
>> 909 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 910 select ZONE_DMA32 if 64BIT
>> 911 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
>> 912
>> 913 config SNI_RM
>> 914 bool "SNI RM200/300/400"
>> 915 select ARC_MEMORY
>> 916 select ARC_PROMLIB
>> 917 select FW_ARC if CPU_LITTLE_ENDIAN
>> 918 select FW_ARC32 if CPU_LITTLE_ENDIAN
>> 919 select FW_SNIPROM if CPU_BIG_ENDIAN
>> 920 select ARCH_MAY_HAVE_PC_FDC
>> 921 select ARCH_MIGHT_HAVE_PC_PARPORT
>> 922 select ARCH_MIGHT_HAVE_PC_SERIO
>> 923 select BOOT_ELF32
>> 924 select CEVT_R4K
>> 925 select CSRC_R4K
>> 926 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 927 select DMA_NONCOHERENT
>> 928 select GENERIC_ISA_DMA
>> 929 select HAVE_EISA
>> 930 select HAVE_PCSPKR_PLATFORM
>> 931 select HAVE_PCI
>> 932 select IRQ_MIPS_CPU
>> 933 select I8253
>> 934 select I8259
>> 935 select ISA
>> 936 select MIPS_L1_CACHE_SHIFT_6
>> 937 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
>> 938 select SYS_HAS_CPU_R4X00
>> 939 select SYS_HAS_CPU_R5000
>> 940 select SYS_HAS_CPU_R10000
>> 941 select R5000_CPU_SCACHE
>> 942 select SYS_HAS_EARLY_PRINTK
>> 943 select SYS_SUPPORTS_32BIT_KERNEL
>> 944 select SYS_SUPPORTS_64BIT_KERNEL
>> 945 select SYS_SUPPORTS_BIG_ENDIAN
>> 946 select SYS_SUPPORTS_HIGHMEM
>> 947 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 948 select WAR_R4600_V2_HIT_CACHEOP
>> 949 help
>> 950 The SNI RM200/300/400 are MIPS-based machines manufactured by
>> 951 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 952 Technology and now in turn merged with Fujitsu. Say Y here to
>> 953 support this machine type.
>> 954
>> 955 config MACH_TX39XX
>> 956 bool "Toshiba TX39 series based machines"
>> 957
>> 958 config MACH_TX49XX
>> 959 bool "Toshiba TX49 series based machines"
>> 960 select WAR_TX49XX_ICACHE_INDEX_INV
>> 961
>> 962 config MIKROTIK_RB532
>> 963 bool "Mikrotik RB532 boards"
>> 964 select CEVT_R4K
>> 965 select CSRC_R4K
>> 966 select DMA_NONCOHERENT
>> 967 select HAVE_PCI
>> 968 select IRQ_MIPS_CPU
>> 969 select SYS_HAS_CPU_MIPS32_R1
>> 970 select SYS_SUPPORTS_32BIT_KERNEL
>> 971 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 972 select SWAP_IO_SPACE
>> 973 select BOOT_RAW
>> 974 select GPIOLIB
>> 975 select MIPS_L1_CACHE_SHIFT_4
>> 976 help
>> 977 Support the Mikrotik(tm) RouterBoard 532 series,
>> 978 based on the IDT RC32434 SoC.
>> 979
>> 980 config CAVIUM_OCTEON_SOC
>> 981 bool "Cavium Networks Octeon SoC based boards"
>> 982 select CEVT_R4K
>> 983 select ARCH_HAS_PHYS_TO_DMA
>> 984 select HAVE_RAPIDIO
>> 985 select PHYS_ADDR_T_64BIT
>> 986 select SYS_SUPPORTS_64BIT_KERNEL
>> 987 select SYS_SUPPORTS_BIG_ENDIAN
>> 988 select EDAC_SUPPORT
>> 989 select EDAC_ATOMIC_SCRUB
>> 990 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 991 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
>> 992 select SYS_HAS_EARLY_PRINTK
>> 993 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 994 select HAVE_PCI
>> 995 select HAVE_PLAT_DELAY
>> 996 select HAVE_PLAT_FW_INIT_CMDLINE
>> 997 select HAVE_PLAT_MEMCPY
>> 998 select ZONE_DMA32
>> 999 select GPIOLIB
>> 1000 select USE_OF
>> 1001 select ARCH_SPARSEMEM_ENABLE
>> 1002 select SYS_SUPPORTS_SMP
>> 1003 select NR_CPUS_DEFAULT_64
>> 1004 select MIPS_NR_CPU_NR_MAP_1024
>> 1005 select BUILTIN_DTB
>> 1006 select MTD
>> 1007 select MTD_COMPLEX_MAPPINGS
>> 1008 select SWIOTLB
>> 1009 select SYS_SUPPORTS_RELOCATABLE
>> 1010 help
>> 1011 This option supports all of the Octeon reference boards from Cavium
>> 1012 Networks. It builds a kernel that dynamically determines the Octeon
>> 1013 CPU type and supports all known board reference implementations.
>> 1014 Some of the supported boards are:
>> 1015 EBT3000
>> 1016 EBH3000
>> 1017 EBH3100
>> 1018 Thunder
>> 1019 Kodama
>> 1020 Hikari
>> 1021 Say Y here for most Octeon reference boards.
>> 1022
>> 1023 config NLM_XLR_BOARD
>> 1024 bool "Netlogic XLR/XLS based systems"
>> 1025 select BOOT_ELF32
>> 1026 select NLM_COMMON
>> 1027 select SYS_HAS_CPU_XLR
>> 1028 select SYS_SUPPORTS_SMP
>> 1029 select HAVE_PCI
>> 1030 select SWAP_IO_SPACE
>> 1031 select SYS_SUPPORTS_32BIT_KERNEL
>> 1032 select SYS_SUPPORTS_64BIT_KERNEL
>> 1033 select PHYS_ADDR_T_64BIT
>> 1034 select SYS_SUPPORTS_BIG_ENDIAN
>> 1035 select SYS_SUPPORTS_HIGHMEM
>> 1036 select NR_CPUS_DEFAULT_32
>> 1037 select CEVT_R4K
>> 1038 select CSRC_R4K
>> 1039 select IRQ_MIPS_CPU
>> 1040 select ZONE_DMA32 if 64BIT
>> 1041 select SYNC_R4K
>> 1042 select SYS_HAS_EARLY_PRINTK
>> 1043 select SYS_SUPPORTS_ZBOOT
>> 1044 select SYS_SUPPORTS_ZBOOT_UART16550
>> 1045 help
>> 1046 Support for systems based on Netlogic XLR and XLS processors.
>> 1047 Say Y here if you have a XLR or XLS based board.
>> 1048
>> 1049 config NLM_XLP_BOARD
>> 1050 bool "Netlogic XLP based systems"
>> 1051 select BOOT_ELF32
>> 1052 select NLM_COMMON
>> 1053 select SYS_HAS_CPU_XLP
>> 1054 select SYS_SUPPORTS_SMP
>> 1055 select HAVE_PCI
>> 1056 select SYS_SUPPORTS_32BIT_KERNEL
>> 1057 select SYS_SUPPORTS_64BIT_KERNEL
>> 1058 select PHYS_ADDR_T_64BIT
>> 1059 select GPIOLIB
>> 1060 select SYS_SUPPORTS_BIG_ENDIAN
>> 1061 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 1062 select SYS_SUPPORTS_HIGHMEM
>> 1063 select NR_CPUS_DEFAULT_32
>> 1064 select CEVT_R4K
>> 1065 select CSRC_R4K
>> 1066 select IRQ_MIPS_CPU
>> 1067 select ZONE_DMA32 if 64BIT
>> 1068 select SYNC_R4K
>> 1069 select SYS_HAS_EARLY_PRINTK
>> 1070 select USE_OF
>> 1071 select SYS_SUPPORTS_ZBOOT
>> 1072 select SYS_SUPPORTS_ZBOOT_UART16550
>> 1073 help
>> 1074 This board is based on Netlogic XLP Processor.
>> 1075 Say Y here if you have a XLP based board.
>> 1076
>> 1077 endchoice
>> 1078
>> 1079 source "arch/mips/alchemy/Kconfig"
>> 1080 source "arch/mips/ath25/Kconfig"
>> 1081 source "arch/mips/ath79/Kconfig"
>> 1082 source "arch/mips/bcm47xx/Kconfig"
>> 1083 source "arch/mips/bcm63xx/Kconfig"
>> 1084 source "arch/mips/bmips/Kconfig"
>> 1085 source "arch/mips/generic/Kconfig"
>> 1086 source "arch/mips/ingenic/Kconfig"
>> 1087 source "arch/mips/jazz/Kconfig"
>> 1088 source "arch/mips/lantiq/Kconfig"
>> 1089 source "arch/mips/pic32/Kconfig"
>> 1090 source "arch/mips/pistachio/Kconfig"
>> 1091 source "arch/mips/ralink/Kconfig"
>> 1092 source "arch/mips/sgi-ip27/Kconfig"
>> 1093 source "arch/mips/sibyte/Kconfig"
>> 1094 source "arch/mips/txx9/Kconfig"
>> 1095 source "arch/mips/vr41xx/Kconfig"
>> 1096 source "arch/mips/cavium-octeon/Kconfig"
>> 1097 source "arch/mips/loongson2ef/Kconfig"
>> 1098 source "arch/mips/loongson32/Kconfig"
>> 1099 source "arch/mips/loongson64/Kconfig"
>> 1100 source "arch/mips/netlogic/Kconfig"
>> 1101
>> 1102 endmenu
33 1103
34 config GENERIC_HWEIGHT 1104 config GENERIC_HWEIGHT
35 def_bool y !! 1105 bool
>> 1106 default y
36 1107
37 config GENERIC_CALIBRATE_DELAY 1108 config GENERIC_CALIBRATE_DELAY
38 def_bool y !! 1109 bool
>> 1110 default y
>> 1111
>> 1112 config SCHED_OMIT_FRAME_POINTER
>> 1113 bool
>> 1114 default y
>> 1115
>> 1116 #
>> 1117 # Select some configuration options automatically based on user selections.
>> 1118 #
>> 1119 config FW_ARC
>> 1120 bool
>> 1121
>> 1122 config ARCH_MAY_HAVE_PC_FDC
>> 1123 bool
>> 1124
>> 1125 config BOOT_RAW
>> 1126 bool
>> 1127
>> 1128 config CEVT_BCM1480
>> 1129 bool
>> 1130
>> 1131 config CEVT_DS1287
>> 1132 bool
>> 1133
>> 1134 config CEVT_GT641XX
>> 1135 bool
>> 1136
>> 1137 config CEVT_R4K
>> 1138 bool
>> 1139
>> 1140 config CEVT_SB1250
>> 1141 bool
>> 1142
>> 1143 config CEVT_TXX9
>> 1144 bool
>> 1145
>> 1146 config CSRC_BCM1480
>> 1147 bool
>> 1148
>> 1149 config CSRC_IOASIC
>> 1150 bool
>> 1151
>> 1152 config CSRC_R4K
>> 1153 select CLOCKSOURCE_WATCHDOG if CPU_FREQ
>> 1154 bool
>> 1155
>> 1156 config CSRC_SB1250
>> 1157 bool
>> 1158
>> 1159 config MIPS_CLOCK_VSYSCALL
>> 1160 def_bool CSRC_R4K || CLKSRC_MIPS_GIC
>> 1161
>> 1162 config GPIO_TXX9
>> 1163 select GPIOLIB
>> 1164 bool
>> 1165
>> 1166 config FW_CFE
>> 1167 bool
>> 1168
>> 1169 config ARCH_SUPPORTS_UPROBES
>> 1170 bool
>> 1171
>> 1172 config DMA_PERDEV_COHERENT
>> 1173 bool
>> 1174 select ARCH_HAS_SETUP_DMA_OPS
>> 1175 select DMA_NONCOHERENT
>> 1176
>> 1177 config DMA_NONCOHERENT
>> 1178 bool
>> 1179 #
>> 1180 # MIPS allows mixing "slightly different" Cacheability and Coherency
>> 1181 # Attribute bits. It is believed that the uncached access through
>> 1182 # KSEG1 and the implementation specific "uncached accelerated" used
>> 1183 # by pgprot_writcombine can be mixed, and the latter sometimes provides
>> 1184 # significant advantages.
>> 1185 #
>> 1186 select ARCH_HAS_DMA_WRITE_COMBINE
>> 1187 select ARCH_HAS_DMA_PREP_COHERENT
>> 1188 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>> 1189 select ARCH_HAS_DMA_SET_UNCACHED
>> 1190 select DMA_NONCOHERENT_MMAP
>> 1191 select NEED_DMA_MAP_STATE
>> 1192
>> 1193 config SYS_HAS_EARLY_PRINTK
>> 1194 bool
>> 1195
>> 1196 config SYS_SUPPORTS_HOTPLUG_CPU
>> 1197 bool
>> 1198
>> 1199 config MIPS_BONITO64
>> 1200 bool
>> 1201
>> 1202 config MIPS_MSC
>> 1203 bool
>> 1204
>> 1205 config SYNC_R4K
>> 1206 bool
39 1207
40 config NO_IOPORT_MAP 1208 config NO_IOPORT_MAP
>> 1209 def_bool n
>> 1210
>> 1211 config GENERIC_CSUM
>> 1212 def_bool CPU_NO_LOAD_STORE_LR
>> 1213
>> 1214 config GENERIC_ISA_DMA
>> 1215 bool
>> 1216 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
>> 1217 select ISA_DMA_API
>> 1218
>> 1219 config GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 1220 bool
>> 1221 select GENERIC_ISA_DMA
>> 1222
>> 1223 config HAVE_PLAT_DELAY
>> 1224 bool
>> 1225
>> 1226 config HAVE_PLAT_FW_INIT_CMDLINE
>> 1227 bool
>> 1228
>> 1229 config HAVE_PLAT_MEMCPY
>> 1230 bool
>> 1231
>> 1232 config ISA_DMA_API
>> 1233 bool
>> 1234
>> 1235 config SYS_SUPPORTS_RELOCATABLE
>> 1236 bool
>> 1237 help
>> 1238 Selected if the platform supports relocating the kernel.
>> 1239 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
>> 1240 to allow access to command line and entropy sources.
>> 1241
>> 1242 config MIPS_CBPF_JIT
41 def_bool y 1243 def_bool y
>> 1244 depends on BPF_JIT && HAVE_CBPF_JIT
42 1245
43 config FPU !! 1246 config MIPS_EBPF_JIT
44 def_bool n !! 1247 def_bool y
>> 1248 depends on BPF_JIT && HAVE_EBPF_JIT
>> 1249
>> 1250
>> 1251 #
>> 1252 # Endianness selection. Sufficiently obscure so many users don't know what to
>> 1253 # answer,so we try hard to limit the available choices. Also the use of a
>> 1254 # choice statement should be more obvious to the user.
>> 1255 #
>> 1256 choice
>> 1257 prompt "Endianness selection"
>> 1258 help
>> 1259 Some MIPS machines can be configured for either little or big endian
>> 1260 byte order. These modes require different kernels and a different
>> 1261 Linux distribution. In general there is one preferred byteorder for a
>> 1262 particular system but some systems are just as commonly used in the
>> 1263 one or the other endianness.
>> 1264
>> 1265 config CPU_BIG_ENDIAN
>> 1266 bool "Big endian"
>> 1267 depends on SYS_SUPPORTS_BIG_ENDIAN
>> 1268
>> 1269 config CPU_LITTLE_ENDIAN
>> 1270 bool "Little endian"
>> 1271 depends on SYS_SUPPORTS_LITTLE_ENDIAN
>> 1272
>> 1273 endchoice
>> 1274
>> 1275 config EXPORT_UASM
>> 1276 bool
>> 1277
>> 1278 config SYS_SUPPORTS_APM_EMULATION
>> 1279 bool
>> 1280
>> 1281 config SYS_SUPPORTS_BIG_ENDIAN
>> 1282 bool
>> 1283
>> 1284 config SYS_SUPPORTS_LITTLE_ENDIAN
>> 1285 bool
>> 1286
>> 1287 config MIPS_HUGE_TLB_SUPPORT
>> 1288 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
>> 1289
>> 1290 config IRQ_MSP_SLP
>> 1291 bool
>> 1292
>> 1293 config IRQ_MSP_CIC
>> 1294 bool
>> 1295
>> 1296 config IRQ_TXX9
>> 1297 bool
>> 1298
>> 1299 config IRQ_GT641XX
>> 1300 bool
>> 1301
>> 1302 config PCI_GT64XXX_PCI0
>> 1303 bool
>> 1304
>> 1305 config PCI_XTALK_BRIDGE
>> 1306 bool
>> 1307
>> 1308 config NO_EXCEPT_FILL
>> 1309 bool
>> 1310
>> 1311 config MIPS_SPRAM
>> 1312 bool
>> 1313
>> 1314 config SWAP_IO_SPACE
>> 1315 bool
45 1316
46 menu "Kernel features" !! 1317 config SGI_HAS_INDYDOG
>> 1318 bool
47 1319
48 source "kernel/Kconfig.hz" !! 1320 config SGI_HAS_HAL2
>> 1321 bool
49 1322
50 config ARCH_FORCE_MAX_ORDER !! 1323 config SGI_HAS_SEEQ
51 int "Order of maximal physically conti !! 1324 bool
52 default "10" !! 1325
>> 1326 config SGI_HAS_WD93
>> 1327 bool
>> 1328
>> 1329 config SGI_HAS_ZILOG
>> 1330 bool
>> 1331
>> 1332 config SGI_HAS_I8042
>> 1333 bool
>> 1334
>> 1335 config DEFAULT_SGI_PARTITION
>> 1336 bool
>> 1337
>> 1338 config FW_ARC32
>> 1339 bool
>> 1340
>> 1341 config FW_SNIPROM
>> 1342 bool
>> 1343
>> 1344 config BOOT_ELF32
>> 1345 bool
>> 1346
>> 1347 config MIPS_L1_CACHE_SHIFT_4
>> 1348 bool
>> 1349
>> 1350 config MIPS_L1_CACHE_SHIFT_5
>> 1351 bool
>> 1352
>> 1353 config MIPS_L1_CACHE_SHIFT_6
>> 1354 bool
>> 1355
>> 1356 config MIPS_L1_CACHE_SHIFT_7
>> 1357 bool
>> 1358
>> 1359 config MIPS_L1_CACHE_SHIFT
>> 1360 int
>> 1361 default "7" if MIPS_L1_CACHE_SHIFT_7
>> 1362 default "6" if MIPS_L1_CACHE_SHIFT_6
>> 1363 default "5" if MIPS_L1_CACHE_SHIFT_5
>> 1364 default "4" if MIPS_L1_CACHE_SHIFT_4
>> 1365 default "5"
>> 1366
>> 1367 config ARC_CMDLINE_ONLY
>> 1368 bool
>> 1369
>> 1370 config ARC_CONSOLE
>> 1371 bool "ARC console support"
>> 1372 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
>> 1373
>> 1374 config ARC_MEMORY
>> 1375 bool
>> 1376
>> 1377 config ARC_PROMLIB
>> 1378 bool
>> 1379
>> 1380 config FW_ARC64
>> 1381 bool
>> 1382
>> 1383 config BOOT_ELF64
>> 1384 bool
>> 1385
>> 1386 menu "CPU selection"
>> 1387
>> 1388 choice
>> 1389 prompt "CPU type"
>> 1390 default CPU_R4X00
>> 1391
>> 1392 config CPU_LOONGSON64
>> 1393 bool "Loongson 64-bit CPU"
>> 1394 depends on SYS_HAS_CPU_LOONGSON64
>> 1395 select ARCH_HAS_PHYS_TO_DMA
>> 1396 select CPU_MIPSR2
>> 1397 select CPU_HAS_PREFETCH
>> 1398 select CPU_SUPPORTS_64BIT_KERNEL
>> 1399 select CPU_SUPPORTS_HIGHMEM
>> 1400 select CPU_SUPPORTS_HUGEPAGES
>> 1401 select CPU_SUPPORTS_MSA
>> 1402 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
>> 1403 select CPU_MIPSR2_IRQ_VI
>> 1404 select WEAK_ORDERING
>> 1405 select WEAK_REORDERING_BEYOND_LLSC
>> 1406 select MIPS_ASID_BITS_VARIABLE
>> 1407 select MIPS_PGD_C0_CONTEXT
>> 1408 select MIPS_L1_CACHE_SHIFT_6
>> 1409 select MIPS_FP_SUPPORT
>> 1410 select GPIOLIB
>> 1411 select SWIOTLB
>> 1412 select HAVE_KVM
>> 1413 help
>> 1414 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
>> 1415 cores implements the MIPS64R2 instruction set with many extensions,
>> 1416 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
>> 1417 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
>> 1418 Loongson-2E/2F is not covered here and will be removed in future.
>> 1419
>> 1420 config LOONGSON3_ENHANCEMENT
>> 1421 bool "New Loongson-3 CPU Enhancements"
>> 1422 default n
>> 1423 depends on CPU_LOONGSON64
53 help 1424 help
54 The kernel page allocator limits the !! 1425 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
55 contiguous allocations. The limit is !! 1426 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
56 defines the maximal power of two of !! 1427 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
57 allocated as a single contiguous blo !! 1428 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
58 overriding the default setting when !! 1429 Fast TLB refill support, etc.
59 large blocks of physically contiguou !! 1430
>> 1431 This option enable those enhancements which are not probed at run
>> 1432 time. If you want a generic kernel to run on all Loongson 3 machines,
>> 1433 please say 'N' here. If you want a high-performance kernel to run on
>> 1434 new Loongson-3 machines only, please say 'Y' here.
>> 1435
>> 1436 config CPU_LOONGSON3_WORKAROUNDS
>> 1437 bool "Old Loongson-3 LLSC Workarounds"
>> 1438 default y if SMP
>> 1439 depends on CPU_LOONGSON64
>> 1440 help
>> 1441 Loongson-3 processors have the llsc issues which require workarounds.
>> 1442 Without workarounds the system may hang unexpectedly.
60 1443
61 Don't change if unsure. !! 1444 Newer Loongson-3 will fix these issues and no workarounds are needed.
>> 1445 The workarounds have no significant side effect on them but may
>> 1446 decrease the performance of the system so this option should be
>> 1447 disabled unless the kernel is intended to be run on old systems.
62 1448
63 endmenu !! 1449 If unsure, please say Y.
64 1450
65 source "arch/nios2/platform/Kconfig.platform" !! 1451 config CPU_LOONGSON3_CPUCFG_EMULATION
>> 1452 bool "Emulate the CPUCFG instruction on older Loongson cores"
>> 1453 default y
>> 1454 depends on CPU_LOONGSON64
>> 1455 help
>> 1456 Loongson-3A R4 and newer have the CPUCFG instruction available for
>> 1457 userland to query CPU capabilities, much like CPUID on x86. This
>> 1458 option provides emulation of the instruction on older Loongson
>> 1459 cores, back to Loongson-3A1000.
>> 1460
>> 1461 If unsure, please say Y.
>> 1462
>> 1463 config CPU_LOONGSON2E
>> 1464 bool "Loongson 2E"
>> 1465 depends on SYS_HAS_CPU_LOONGSON2E
>> 1466 select CPU_LOONGSON2EF
>> 1467 help
>> 1468 The Loongson 2E processor implements the MIPS III instruction set
>> 1469 with many extensions.
66 1470
67 menu "Processor type and features" !! 1471 It has an internal FPGA northbridge, which is compatible to
>> 1472 bonito64.
68 1473
69 config MMU !! 1474 config CPU_LOONGSON2F
70 def_bool y !! 1475 bool "Loongson 2F"
>> 1476 depends on SYS_HAS_CPU_LOONGSON2F
>> 1477 select CPU_LOONGSON2EF
>> 1478 select GPIOLIB
>> 1479 help
>> 1480 The Loongson 2F processor implements the MIPS III instruction set
>> 1481 with many extensions.
71 1482
72 config NR_CPUS !! 1483 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
>> 1484 have a similar programming interface with FPGA northbridge used in
>> 1485 Loongson2E.
>> 1486
>> 1487 config CPU_LOONGSON1B
>> 1488 bool "Loongson 1B"
>> 1489 depends on SYS_HAS_CPU_LOONGSON1B
>> 1490 select CPU_LOONGSON32
>> 1491 select LEDS_GPIO_REGISTER
>> 1492 help
>> 1493 The Loongson 1B is a 32-bit SoC, which implements the MIPS32
>> 1494 Release 1 instruction set and part of the MIPS32 Release 2
>> 1495 instruction set.
>> 1496
>> 1497 config CPU_LOONGSON1C
>> 1498 bool "Loongson 1C"
>> 1499 depends on SYS_HAS_CPU_LOONGSON1C
>> 1500 select CPU_LOONGSON32
>> 1501 select LEDS_GPIO_REGISTER
>> 1502 help
>> 1503 The Loongson 1C is a 32-bit SoC, which implements the MIPS32
>> 1504 Release 1 instruction set and part of the MIPS32 Release 2
>> 1505 instruction set.
>> 1506
>> 1507 config CPU_MIPS32_R1
>> 1508 bool "MIPS32 Release 1"
>> 1509 depends on SYS_HAS_CPU_MIPS32_R1
>> 1510 select CPU_HAS_PREFETCH
>> 1511 select CPU_SUPPORTS_32BIT_KERNEL
>> 1512 select CPU_SUPPORTS_HIGHMEM
>> 1513 help
>> 1514 Choose this option to build a kernel for release 1 or later of the
>> 1515 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1516 MIPS processor are based on a MIPS32 processor. If you know the
>> 1517 specific type of processor in your system, choose those that one
>> 1518 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1519 Release 2 of the MIPS32 architecture is available since several
>> 1520 years so chances are you even have a MIPS32 Release 2 processor
>> 1521 in which case you should choose CPU_MIPS32_R2 instead for better
>> 1522 performance.
>> 1523
>> 1524 config CPU_MIPS32_R2
>> 1525 bool "MIPS32 Release 2"
>> 1526 depends on SYS_HAS_CPU_MIPS32_R2
>> 1527 select CPU_HAS_PREFETCH
>> 1528 select CPU_SUPPORTS_32BIT_KERNEL
>> 1529 select CPU_SUPPORTS_HIGHMEM
>> 1530 select CPU_SUPPORTS_MSA
>> 1531 select HAVE_KVM
>> 1532 help
>> 1533 Choose this option to build a kernel for release 2 or later of the
>> 1534 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1535 MIPS processor are based on a MIPS32 processor. If you know the
>> 1536 specific type of processor in your system, choose those that one
>> 1537 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1538
>> 1539 config CPU_MIPS32_R5
>> 1540 bool "MIPS32 Release 5"
>> 1541 depends on SYS_HAS_CPU_MIPS32_R5
>> 1542 select CPU_HAS_PREFETCH
>> 1543 select CPU_SUPPORTS_32BIT_KERNEL
>> 1544 select CPU_SUPPORTS_HIGHMEM
>> 1545 select CPU_SUPPORTS_MSA
>> 1546 select HAVE_KVM
>> 1547 select MIPS_O32_FP64_SUPPORT
>> 1548 help
>> 1549 Choose this option to build a kernel for release 5 or later of the
>> 1550 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1551 family, are based on a MIPS32r5 processor. If you own an older
>> 1552 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1553
>> 1554 config CPU_MIPS32_R6
>> 1555 bool "MIPS32 Release 6"
>> 1556 depends on SYS_HAS_CPU_MIPS32_R6
>> 1557 select CPU_HAS_PREFETCH
>> 1558 select CPU_NO_LOAD_STORE_LR
>> 1559 select CPU_SUPPORTS_32BIT_KERNEL
>> 1560 select CPU_SUPPORTS_HIGHMEM
>> 1561 select CPU_SUPPORTS_MSA
>> 1562 select HAVE_KVM
>> 1563 select MIPS_O32_FP64_SUPPORT
>> 1564 help
>> 1565 Choose this option to build a kernel for release 6 or later of the
>> 1566 MIPS32 architecture. New MIPS processors, starting with the Warrior
>> 1567 family, are based on a MIPS32r6 processor. If you own an older
>> 1568 processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
>> 1569
>> 1570 config CPU_MIPS64_R1
>> 1571 bool "MIPS64 Release 1"
>> 1572 depends on SYS_HAS_CPU_MIPS64_R1
>> 1573 select CPU_HAS_PREFETCH
>> 1574 select CPU_SUPPORTS_32BIT_KERNEL
>> 1575 select CPU_SUPPORTS_64BIT_KERNEL
>> 1576 select CPU_SUPPORTS_HIGHMEM
>> 1577 select CPU_SUPPORTS_HUGEPAGES
>> 1578 help
>> 1579 Choose this option to build a kernel for release 1 or later of the
>> 1580 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1581 MIPS processor are based on a MIPS64 processor. If you know the
>> 1582 specific type of processor in your system, choose those that one
>> 1583 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1584 Release 2 of the MIPS64 architecture is available since several
>> 1585 years so chances are you even have a MIPS64 Release 2 processor
>> 1586 in which case you should choose CPU_MIPS64_R2 instead for better
>> 1587 performance.
>> 1588
>> 1589 config CPU_MIPS64_R2
>> 1590 bool "MIPS64 Release 2"
>> 1591 depends on SYS_HAS_CPU_MIPS64_R2
>> 1592 select CPU_HAS_PREFETCH
>> 1593 select CPU_SUPPORTS_32BIT_KERNEL
>> 1594 select CPU_SUPPORTS_64BIT_KERNEL
>> 1595 select CPU_SUPPORTS_HIGHMEM
>> 1596 select CPU_SUPPORTS_HUGEPAGES
>> 1597 select CPU_SUPPORTS_MSA
>> 1598 select HAVE_KVM
>> 1599 help
>> 1600 Choose this option to build a kernel for release 2 or later of the
>> 1601 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1602 MIPS processor are based on a MIPS64 processor. If you know the
>> 1603 specific type of processor in your system, choose those that one
>> 1604 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1605
>> 1606 config CPU_MIPS64_R5
>> 1607 bool "MIPS64 Release 5"
>> 1608 depends on SYS_HAS_CPU_MIPS64_R5
>> 1609 select CPU_HAS_PREFETCH
>> 1610 select CPU_SUPPORTS_32BIT_KERNEL
>> 1611 select CPU_SUPPORTS_64BIT_KERNEL
>> 1612 select CPU_SUPPORTS_HIGHMEM
>> 1613 select CPU_SUPPORTS_HUGEPAGES
>> 1614 select CPU_SUPPORTS_MSA
>> 1615 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1616 select HAVE_KVM
>> 1617 help
>> 1618 Choose this option to build a kernel for release 5 or later of the
>> 1619 MIPS64 architecture. This is a intermediate MIPS architecture
>> 1620 release partly implementing release 6 features. Though there is no
>> 1621 any hardware known to be based on this release.
>> 1622
>> 1623 config CPU_MIPS64_R6
>> 1624 bool "MIPS64 Release 6"
>> 1625 depends on SYS_HAS_CPU_MIPS64_R6
>> 1626 select CPU_HAS_PREFETCH
>> 1627 select CPU_NO_LOAD_STORE_LR
>> 1628 select CPU_SUPPORTS_32BIT_KERNEL
>> 1629 select CPU_SUPPORTS_64BIT_KERNEL
>> 1630 select CPU_SUPPORTS_HIGHMEM
>> 1631 select CPU_SUPPORTS_HUGEPAGES
>> 1632 select CPU_SUPPORTS_MSA
>> 1633 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
>> 1634 select HAVE_KVM
>> 1635 help
>> 1636 Choose this option to build a kernel for release 6 or later of the
>> 1637 MIPS64 architecture. New MIPS processors, starting with the Warrior
>> 1638 family, are based on a MIPS64r6 processor. If you own an older
>> 1639 processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
>> 1640
>> 1641 config CPU_P5600
>> 1642 bool "MIPS Warrior P5600"
>> 1643 depends on SYS_HAS_CPU_P5600
>> 1644 select CPU_HAS_PREFETCH
>> 1645 select CPU_SUPPORTS_32BIT_KERNEL
>> 1646 select CPU_SUPPORTS_HIGHMEM
>> 1647 select CPU_SUPPORTS_MSA
>> 1648 select CPU_SUPPORTS_CPUFREQ
>> 1649 select CPU_MIPSR2_IRQ_VI
>> 1650 select CPU_MIPSR2_IRQ_EI
>> 1651 select HAVE_KVM
>> 1652 select MIPS_O32_FP64_SUPPORT
>> 1653 help
>> 1654 Choose this option to build a kernel for MIPS Warrior P5600 CPU.
>> 1655 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
>> 1656 MMU with two-levels TLB, UCA, MSA, MDU core level features and system
>> 1657 level features like up to six P5600 calculation cores, CM2 with L2
>> 1658 cache, IOCU/IOMMU (though might be unused depending on the system-
>> 1659 specific IP core configuration), GIC, CPC, virtualisation module,
>> 1660 eJTAG and PDtrace.
>> 1661
>> 1662 config CPU_R3000
>> 1663 bool "R3000"
>> 1664 depends on SYS_HAS_CPU_R3000
>> 1665 select CPU_HAS_WB
>> 1666 select CPU_R3K_TLB
>> 1667 select CPU_SUPPORTS_32BIT_KERNEL
>> 1668 select CPU_SUPPORTS_HIGHMEM
>> 1669 help
>> 1670 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 1671 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 1672 *not* work on R4000 machines and vice versa. However, since most
>> 1673 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 1674 might be a safe bet. If the resulting kernel does not work,
>> 1675 try to recompile with R3000.
>> 1676
>> 1677 config CPU_TX39XX
>> 1678 bool "R39XX"
>> 1679 depends on SYS_HAS_CPU_TX39XX
>> 1680 select CPU_SUPPORTS_32BIT_KERNEL
>> 1681 select CPU_R3K_TLB
>> 1682
>> 1683 config CPU_VR41XX
>> 1684 bool "R41xx"
>> 1685 depends on SYS_HAS_CPU_VR41XX
>> 1686 select CPU_SUPPORTS_32BIT_KERNEL
>> 1687 select CPU_SUPPORTS_64BIT_KERNEL
>> 1688 help
>> 1689 The options selects support for the NEC VR4100 series of processors.
>> 1690 Only choose this option if you have one of these processors as a
>> 1691 kernel built with this option will not run on any other type of
>> 1692 processor or vice versa.
>> 1693
>> 1694 config CPU_R4300
>> 1695 bool "R4300"
>> 1696 depends on SYS_HAS_CPU_R4300
>> 1697 select CPU_SUPPORTS_32BIT_KERNEL
>> 1698 select CPU_SUPPORTS_64BIT_KERNEL
>> 1699 select CPU_HAS_LOAD_STORE_LR
>> 1700 help
>> 1701 MIPS Technologies R4300-series processors.
>> 1702
>> 1703 config CPU_R4X00
>> 1704 bool "R4x00"
>> 1705 depends on SYS_HAS_CPU_R4X00
>> 1706 select CPU_SUPPORTS_32BIT_KERNEL
>> 1707 select CPU_SUPPORTS_64BIT_KERNEL
>> 1708 select CPU_SUPPORTS_HUGEPAGES
>> 1709 help
>> 1710 MIPS Technologies R4000-series processors other than 4300, including
>> 1711 the R4000, R4400, R4600, and 4700.
>> 1712
>> 1713 config CPU_TX49XX
>> 1714 bool "R49XX"
>> 1715 depends on SYS_HAS_CPU_TX49XX
>> 1716 select CPU_HAS_PREFETCH
>> 1717 select CPU_SUPPORTS_32BIT_KERNEL
>> 1718 select CPU_SUPPORTS_64BIT_KERNEL
>> 1719 select CPU_SUPPORTS_HUGEPAGES
>> 1720
>> 1721 config CPU_R5000
>> 1722 bool "R5000"
>> 1723 depends on SYS_HAS_CPU_R5000
>> 1724 select CPU_SUPPORTS_32BIT_KERNEL
>> 1725 select CPU_SUPPORTS_64BIT_KERNEL
>> 1726 select CPU_SUPPORTS_HUGEPAGES
>> 1727 help
>> 1728 MIPS Technologies R5000-series processors other than the Nevada.
>> 1729
>> 1730 config CPU_R5500
>> 1731 bool "R5500"
>> 1732 depends on SYS_HAS_CPU_R5500
>> 1733 select CPU_SUPPORTS_32BIT_KERNEL
>> 1734 select CPU_SUPPORTS_64BIT_KERNEL
>> 1735 select CPU_SUPPORTS_HUGEPAGES
>> 1736 help
>> 1737 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
>> 1738 instruction set.
>> 1739
>> 1740 config CPU_NEVADA
>> 1741 bool "RM52xx"
>> 1742 depends on SYS_HAS_CPU_NEVADA
>> 1743 select CPU_SUPPORTS_32BIT_KERNEL
>> 1744 select CPU_SUPPORTS_64BIT_KERNEL
>> 1745 select CPU_SUPPORTS_HUGEPAGES
>> 1746 help
>> 1747 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
>> 1748
>> 1749 config CPU_R10000
>> 1750 bool "R10000"
>> 1751 depends on SYS_HAS_CPU_R10000
>> 1752 select CPU_HAS_PREFETCH
>> 1753 select CPU_SUPPORTS_32BIT_KERNEL
>> 1754 select CPU_SUPPORTS_64BIT_KERNEL
>> 1755 select CPU_SUPPORTS_HIGHMEM
>> 1756 select CPU_SUPPORTS_HUGEPAGES
>> 1757 help
>> 1758 MIPS Technologies R10000-series processors.
>> 1759
>> 1760 config CPU_RM7000
>> 1761 bool "RM7000"
>> 1762 depends on SYS_HAS_CPU_RM7000
>> 1763 select CPU_HAS_PREFETCH
>> 1764 select CPU_SUPPORTS_32BIT_KERNEL
>> 1765 select CPU_SUPPORTS_64BIT_KERNEL
>> 1766 select CPU_SUPPORTS_HIGHMEM
>> 1767 select CPU_SUPPORTS_HUGEPAGES
>> 1768
>> 1769 config CPU_SB1
>> 1770 bool "SB1"
>> 1771 depends on SYS_HAS_CPU_SB1
>> 1772 select CPU_SUPPORTS_32BIT_KERNEL
>> 1773 select CPU_SUPPORTS_64BIT_KERNEL
>> 1774 select CPU_SUPPORTS_HIGHMEM
>> 1775 select CPU_SUPPORTS_HUGEPAGES
>> 1776 select WEAK_ORDERING
>> 1777
>> 1778 config CPU_CAVIUM_OCTEON
>> 1779 bool "Cavium Octeon processor"
>> 1780 depends on SYS_HAS_CPU_CAVIUM_OCTEON
>> 1781 select CPU_HAS_PREFETCH
>> 1782 select CPU_SUPPORTS_64BIT_KERNEL
>> 1783 select WEAK_ORDERING
>> 1784 select CPU_SUPPORTS_HIGHMEM
>> 1785 select CPU_SUPPORTS_HUGEPAGES
>> 1786 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1787 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
>> 1788 select MIPS_L1_CACHE_SHIFT_7
>> 1789 select HAVE_KVM
>> 1790 help
>> 1791 The Cavium Octeon processor is a highly integrated chip containing
>> 1792 many ethernet hardware widgets for networking tasks. The processor
>> 1793 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
>> 1794 Full details can be found at http://www.caviumnetworks.com.
>> 1795
>> 1796 config CPU_BMIPS
>> 1797 bool "Broadcom BMIPS"
>> 1798 depends on SYS_HAS_CPU_BMIPS
>> 1799 select CPU_MIPS32
>> 1800 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
>> 1801 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
>> 1802 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
>> 1803 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
>> 1804 select CPU_SUPPORTS_32BIT_KERNEL
>> 1805 select DMA_NONCOHERENT
>> 1806 select IRQ_MIPS_CPU
>> 1807 select SWAP_IO_SPACE
>> 1808 select WEAK_ORDERING
>> 1809 select CPU_SUPPORTS_HIGHMEM
>> 1810 select CPU_HAS_PREFETCH
>> 1811 select CPU_SUPPORTS_CPUFREQ
>> 1812 select MIPS_EXTERNAL_TIMER
>> 1813 help
>> 1814 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
>> 1815
>> 1816 config CPU_XLR
>> 1817 bool "Netlogic XLR SoC"
>> 1818 depends on SYS_HAS_CPU_XLR
>> 1819 select CPU_SUPPORTS_32BIT_KERNEL
>> 1820 select CPU_SUPPORTS_64BIT_KERNEL
>> 1821 select CPU_SUPPORTS_HIGHMEM
>> 1822 select CPU_SUPPORTS_HUGEPAGES
>> 1823 select WEAK_ORDERING
>> 1824 select WEAK_REORDERING_BEYOND_LLSC
>> 1825 help
>> 1826 Netlogic Microsystems XLR/XLS processors.
>> 1827
>> 1828 config CPU_XLP
>> 1829 bool "Netlogic XLP SoC"
>> 1830 depends on SYS_HAS_CPU_XLP
>> 1831 select CPU_SUPPORTS_32BIT_KERNEL
>> 1832 select CPU_SUPPORTS_64BIT_KERNEL
>> 1833 select CPU_SUPPORTS_HIGHMEM
>> 1834 select WEAK_ORDERING
>> 1835 select WEAK_REORDERING_BEYOND_LLSC
>> 1836 select CPU_HAS_PREFETCH
>> 1837 select CPU_MIPSR2
>> 1838 select CPU_SUPPORTS_HUGEPAGES
>> 1839 select MIPS_ASID_BITS_VARIABLE
>> 1840 help
>> 1841 Netlogic Microsystems XLP processors.
>> 1842 endchoice
>> 1843
>> 1844 config CPU_MIPS32_3_5_FEATURES
>> 1845 bool "MIPS32 Release 3.5 Features"
>> 1846 depends on SYS_HAS_CPU_MIPS32_R3_5
>> 1847 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
>> 1848 CPU_P5600
>> 1849 help
>> 1850 Choose this option to build a kernel for release 2 or later of the
>> 1851 MIPS32 architecture including features from the 3.5 release such as
>> 1852 support for Enhanced Virtual Addressing (EVA).
>> 1853
>> 1854 config CPU_MIPS32_3_5_EVA
>> 1855 bool "Enhanced Virtual Addressing (EVA)"
>> 1856 depends on CPU_MIPS32_3_5_FEATURES
>> 1857 select EVA
>> 1858 default y
>> 1859 help
>> 1860 Choose this option if you want to enable the Enhanced Virtual
>> 1861 Addressing (EVA) on your MIPS32 core (such as proAptiv).
>> 1862 One of its primary benefits is an increase in the maximum size
>> 1863 of lowmem (up to 3GB). If unsure, say 'N' here.
>> 1864
>> 1865 config CPU_MIPS32_R5_FEATURES
>> 1866 bool "MIPS32 Release 5 Features"
>> 1867 depends on SYS_HAS_CPU_MIPS32_R5
>> 1868 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
>> 1869 help
>> 1870 Choose this option to build a kernel for release 2 or later of the
>> 1871 MIPS32 architecture including features from release 5 such as
>> 1872 support for Extended Physical Addressing (XPA).
>> 1873
>> 1874 config CPU_MIPS32_R5_XPA
>> 1875 bool "Extended Physical Addressing (XPA)"
>> 1876 depends on CPU_MIPS32_R5_FEATURES
>> 1877 depends on !EVA
>> 1878 depends on !PAGE_SIZE_4KB
>> 1879 depends on SYS_SUPPORTS_HIGHMEM
>> 1880 select XPA
>> 1881 select HIGHMEM
>> 1882 select PHYS_ADDR_T_64BIT
>> 1883 default n
>> 1884 help
>> 1885 Choose this option if you want to enable the Extended Physical
>> 1886 Addressing (XPA) on your MIPS32 core (such as P5600 series). The
>> 1887 benefit is to increase physical addressing equal to or greater
>> 1888 than 40 bits. Note that this has the side effect of turning on
>> 1889 64-bit addressing which in turn makes the PTEs 64-bit in size.
>> 1890 If unsure, say 'N' here.
>> 1891
>> 1892 if CPU_LOONGSON2F
>> 1893 config CPU_NOP_WORKAROUNDS
>> 1894 bool
>> 1895
>> 1896 config CPU_JUMP_WORKAROUNDS
>> 1897 bool
>> 1898
>> 1899 config CPU_LOONGSON2F_WORKAROUNDS
>> 1900 bool "Loongson 2F Workarounds"
>> 1901 default y
>> 1902 select CPU_NOP_WORKAROUNDS
>> 1903 select CPU_JUMP_WORKAROUNDS
>> 1904 help
>> 1905 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
>> 1906 require workarounds. Without workarounds the system may hang
>> 1907 unexpectedly. For more information please refer to the gas
>> 1908 -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
>> 1909
>> 1910 Loongson 2F03 and later have fixed these issues and no workarounds
>> 1911 are needed. The workarounds have no significant side effect on them
>> 1912 but may decrease the performance of the system so this option should
>> 1913 be disabled unless the kernel is intended to be run on 2F01 or 2F02
>> 1914 systems.
>> 1915
>> 1916 If unsure, please say Y.
>> 1917 endif # CPU_LOONGSON2F
>> 1918
>> 1919 config SYS_SUPPORTS_ZBOOT
>> 1920 bool
>> 1921 select HAVE_KERNEL_GZIP
>> 1922 select HAVE_KERNEL_BZIP2
>> 1923 select HAVE_KERNEL_LZ4
>> 1924 select HAVE_KERNEL_LZMA
>> 1925 select HAVE_KERNEL_LZO
>> 1926 select HAVE_KERNEL_XZ
>> 1927 select HAVE_KERNEL_ZSTD
>> 1928
>> 1929 config SYS_SUPPORTS_ZBOOT_UART16550
>> 1930 bool
>> 1931 select SYS_SUPPORTS_ZBOOT
>> 1932
>> 1933 config SYS_SUPPORTS_ZBOOT_UART_PROM
>> 1934 bool
>> 1935 select SYS_SUPPORTS_ZBOOT
>> 1936
>> 1937 config CPU_LOONGSON2EF
>> 1938 bool
>> 1939 select CPU_SUPPORTS_32BIT_KERNEL
>> 1940 select CPU_SUPPORTS_64BIT_KERNEL
>> 1941 select CPU_SUPPORTS_HIGHMEM
>> 1942 select CPU_SUPPORTS_HUGEPAGES
>> 1943 select ARCH_HAS_PHYS_TO_DMA
>> 1944
>> 1945 config CPU_LOONGSON32
>> 1946 bool
>> 1947 select CPU_MIPS32
>> 1948 select CPU_MIPSR2
>> 1949 select CPU_HAS_PREFETCH
>> 1950 select CPU_SUPPORTS_32BIT_KERNEL
>> 1951 select CPU_SUPPORTS_HIGHMEM
>> 1952 select CPU_SUPPORTS_CPUFREQ
>> 1953
>> 1954 config CPU_BMIPS32_3300
>> 1955 select SMP_UP if SMP
>> 1956 bool
>> 1957
>> 1958 config CPU_BMIPS4350
>> 1959 bool
>> 1960 select SYS_SUPPORTS_SMP
>> 1961 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1962
>> 1963 config CPU_BMIPS4380
>> 1964 bool
>> 1965 select MIPS_L1_CACHE_SHIFT_6
>> 1966 select SYS_SUPPORTS_SMP
>> 1967 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1968 select CPU_HAS_RIXI
>> 1969
>> 1970 config CPU_BMIPS5000
>> 1971 bool
>> 1972 select MIPS_CPU_SCACHE
>> 1973 select MIPS_L1_CACHE_SHIFT_7
>> 1974 select SYS_SUPPORTS_SMP
>> 1975 select SYS_SUPPORTS_HOTPLUG_CPU
>> 1976 select CPU_HAS_RIXI
>> 1977
>> 1978 config SYS_HAS_CPU_LOONGSON64
>> 1979 bool
>> 1980 select CPU_SUPPORTS_CPUFREQ
>> 1981 select CPU_HAS_RIXI
>> 1982
>> 1983 config SYS_HAS_CPU_LOONGSON2E
>> 1984 bool
>> 1985
>> 1986 config SYS_HAS_CPU_LOONGSON2F
>> 1987 bool
>> 1988 select CPU_SUPPORTS_CPUFREQ
>> 1989 select CPU_SUPPORTS_ADDRWINCFG if 64BIT
>> 1990
>> 1991 config SYS_HAS_CPU_LOONGSON1B
>> 1992 bool
>> 1993
>> 1994 config SYS_HAS_CPU_LOONGSON1C
>> 1995 bool
>> 1996
>> 1997 config SYS_HAS_CPU_MIPS32_R1
>> 1998 bool
>> 1999
>> 2000 config SYS_HAS_CPU_MIPS32_R2
>> 2001 bool
>> 2002
>> 2003 config SYS_HAS_CPU_MIPS32_R3_5
>> 2004 bool
>> 2005
>> 2006 config SYS_HAS_CPU_MIPS32_R5
>> 2007 bool
>> 2008 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 2009
>> 2010 config SYS_HAS_CPU_MIPS32_R6
>> 2011 bool
>> 2012 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 2013
>> 2014 config SYS_HAS_CPU_MIPS64_R1
>> 2015 bool
>> 2016
>> 2017 config SYS_HAS_CPU_MIPS64_R2
>> 2018 bool
>> 2019
>> 2020 config SYS_HAS_CPU_MIPS64_R6
>> 2021 bool
>> 2022 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 2023
>> 2024 config SYS_HAS_CPU_P5600
>> 2025 bool
>> 2026 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 2027
>> 2028 config SYS_HAS_CPU_R3000
>> 2029 bool
>> 2030
>> 2031 config SYS_HAS_CPU_TX39XX
>> 2032 bool
>> 2033
>> 2034 config SYS_HAS_CPU_VR41XX
>> 2035 bool
>> 2036
>> 2037 config SYS_HAS_CPU_R4300
>> 2038 bool
>> 2039
>> 2040 config SYS_HAS_CPU_R4X00
>> 2041 bool
>> 2042
>> 2043 config SYS_HAS_CPU_TX49XX
>> 2044 bool
>> 2045
>> 2046 config SYS_HAS_CPU_R5000
>> 2047 bool
>> 2048
>> 2049 config SYS_HAS_CPU_R5500
>> 2050 bool
>> 2051
>> 2052 config SYS_HAS_CPU_NEVADA
>> 2053 bool
>> 2054
>> 2055 config SYS_HAS_CPU_R10000
>> 2056 bool
>> 2057 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
>> 2058
>> 2059 config SYS_HAS_CPU_RM7000
>> 2060 bool
>> 2061
>> 2062 config SYS_HAS_CPU_SB1
>> 2063 bool
>> 2064
>> 2065 config SYS_HAS_CPU_CAVIUM_OCTEON
>> 2066 bool
>> 2067
>> 2068 config SYS_HAS_CPU_BMIPS
>> 2069 bool
>> 2070
>> 2071 config SYS_HAS_CPU_BMIPS32_3300
>> 2072 bool
>> 2073 select SYS_HAS_CPU_BMIPS
>> 2074
>> 2075 config SYS_HAS_CPU_BMIPS4350
>> 2076 bool
>> 2077 select SYS_HAS_CPU_BMIPS
>> 2078
>> 2079 config SYS_HAS_CPU_BMIPS4380
>> 2080 bool
>> 2081 select SYS_HAS_CPU_BMIPS
>> 2082
>> 2083 config SYS_HAS_CPU_BMIPS5000
>> 2084 bool
>> 2085 select SYS_HAS_CPU_BMIPS
>> 2086 select ARCH_HAS_SYNC_DMA_FOR_CPU
>> 2087
>> 2088 config SYS_HAS_CPU_XLR
>> 2089 bool
>> 2090
>> 2091 config SYS_HAS_CPU_XLP
>> 2092 bool
>> 2093
>> 2094 #
>> 2095 # CPU may reorder R->R, R->W, W->R, W->W
>> 2096 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
>> 2097 #
>> 2098 config WEAK_ORDERING
>> 2099 bool
>> 2100
>> 2101 #
>> 2102 # CPU may reorder reads and writes beyond LL/SC
>> 2103 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
>> 2104 #
>> 2105 config WEAK_REORDERING_BEYOND_LLSC
>> 2106 bool
>> 2107 endmenu
>> 2108
>> 2109 #
>> 2110 # These two indicate any level of the MIPS32 and MIPS64 architecture
>> 2111 #
>> 2112 config CPU_MIPS32
>> 2113 bool
>> 2114 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
>> 2115 CPU_MIPS32_R6 || CPU_P5600
>> 2116
>> 2117 config CPU_MIPS64
>> 2118 bool
>> 2119 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
>> 2120 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
>> 2121
>> 2122 #
>> 2123 # These indicate the revision of the architecture
>> 2124 #
>> 2125 config CPU_MIPSR1
>> 2126 bool
>> 2127 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
>> 2128
>> 2129 config CPU_MIPSR2
>> 2130 bool
>> 2131 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
>> 2132 select CPU_HAS_RIXI
>> 2133 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 2134 select MIPS_SPRAM
>> 2135
>> 2136 config CPU_MIPSR5
>> 2137 bool
>> 2138 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
>> 2139 select CPU_HAS_RIXI
>> 2140 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 2141 select MIPS_SPRAM
>> 2142
>> 2143 config CPU_MIPSR6
>> 2144 bool
>> 2145 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
>> 2146 select CPU_HAS_RIXI
>> 2147 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
>> 2148 select HAVE_ARCH_BITREVERSE
>> 2149 select MIPS_ASID_BITS_VARIABLE
>> 2150 select MIPS_CRC_SUPPORT
>> 2151 select MIPS_SPRAM
>> 2152
>> 2153 config TARGET_ISA_REV
73 int 2154 int
74 default "1" !! 2155 default 1 if CPU_MIPSR1
>> 2156 default 2 if CPU_MIPSR2
>> 2157 default 5 if CPU_MIPSR5
>> 2158 default 6 if CPU_MIPSR6
>> 2159 default 0
>> 2160 help
>> 2161 Reflects the ISA revision being targeted by the kernel build. This
>> 2162 is effectively the Kconfig equivalent of MIPS_ISA_REV.
>> 2163
>> 2164 config EVA
>> 2165 bool
>> 2166
>> 2167 config XPA
>> 2168 bool
>> 2169
>> 2170 config SYS_SUPPORTS_32BIT_KERNEL
>> 2171 bool
>> 2172 config SYS_SUPPORTS_64BIT_KERNEL
>> 2173 bool
>> 2174 config CPU_SUPPORTS_32BIT_KERNEL
>> 2175 bool
>> 2176 config CPU_SUPPORTS_64BIT_KERNEL
>> 2177 bool
>> 2178 config CPU_SUPPORTS_CPUFREQ
>> 2179 bool
>> 2180 config CPU_SUPPORTS_ADDRWINCFG
>> 2181 bool
>> 2182 config CPU_SUPPORTS_HUGEPAGES
>> 2183 bool
>> 2184 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
>> 2185 config MIPS_PGD_C0_CONTEXT
>> 2186 bool
>> 2187 depends on 64BIT
>> 2188 default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
>> 2189
>> 2190 #
>> 2191 # Set to y for ptrace access to watch registers.
>> 2192 #
>> 2193 config HARDWARE_WATCHPOINTS
>> 2194 bool
>> 2195 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
>> 2196
>> 2197 menu "Kernel type"
>> 2198
>> 2199 choice
>> 2200 prompt "Kernel code model"
>> 2201 help
>> 2202 You should only select this option if you have a workload that
>> 2203 actually benefits from 64-bit processing or if your machine has
>> 2204 large memory. You will only be presented a single option in this
>> 2205 menu if your system does not support both 32-bit and 64-bit kernels.
>> 2206
>> 2207 config 32BIT
>> 2208 bool "32-bit kernel"
>> 2209 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
>> 2210 select TRAD_SIGNALS
>> 2211 help
>> 2212 Select this option if you want to build a 32-bit kernel.
>> 2213
>> 2214 config 64BIT
>> 2215 bool "64-bit kernel"
>> 2216 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
>> 2217 help
>> 2218 Select this option if you want to build a 64-bit kernel.
75 2219
76 config NIOS2_ALIGNMENT_TRAP !! 2220 endchoice
77 bool "Catch alignment trap" !! 2221
>> 2222 config MIPS_VA_BITS_48
>> 2223 bool "48 bits virtual memory"
>> 2224 depends on 64BIT
>> 2225 help
>> 2226 Support a maximum at least 48 bits of application virtual
>> 2227 memory. Default is 40 bits or less, depending on the CPU.
>> 2228 For page sizes 16k and above, this option results in a small
>> 2229 memory overhead for page tables. For 4k page size, a fourth
>> 2230 level of page tables is added which imposes both a memory
>> 2231 overhead as well as slower TLB fault handling.
>> 2232
>> 2233 If unsure, say N.
>> 2234
>> 2235 choice
>> 2236 prompt "Kernel page size"
>> 2237 default PAGE_SIZE_4KB
>> 2238
>> 2239 config PAGE_SIZE_4KB
>> 2240 bool "4kB"
>> 2241 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
>> 2242 help
>> 2243 This option select the standard 4kB Linux page size. On some
>> 2244 R3000-family processors this is the only available page size. Using
>> 2245 4kB page size will minimize memory consumption and is therefore
>> 2246 recommended for low memory systems.
>> 2247
>> 2248 config PAGE_SIZE_8KB
>> 2249 bool "8kB"
>> 2250 depends on CPU_CAVIUM_OCTEON
>> 2251 depends on !MIPS_VA_BITS_48
>> 2252 help
>> 2253 Using 8kB page size will result in higher performance kernel at
>> 2254 the price of higher memory consumption. This option is available
>> 2255 only on cnMIPS processors. Note that you will need a suitable Linux
>> 2256 distribution to support this.
>> 2257
>> 2258 config PAGE_SIZE_16KB
>> 2259 bool "16kB"
>> 2260 depends on !CPU_R3000 && !CPU_TX39XX
>> 2261 help
>> 2262 Using 16kB page size will result in higher performance kernel at
>> 2263 the price of higher memory consumption. This option is available on
>> 2264 all non-R3000 family processors. Note that you will need a suitable
>> 2265 Linux distribution to support this.
>> 2266
>> 2267 config PAGE_SIZE_32KB
>> 2268 bool "32kB"
>> 2269 depends on CPU_CAVIUM_OCTEON
>> 2270 depends on !MIPS_VA_BITS_48
>> 2271 help
>> 2272 Using 32kB page size will result in higher performance kernel at
>> 2273 the price of higher memory consumption. This option is available
>> 2274 only on cnMIPS cores. Note that you will need a suitable Linux
>> 2275 distribution to support this.
>> 2276
>> 2277 config PAGE_SIZE_64KB
>> 2278 bool "64kB"
>> 2279 depends on !CPU_R3000 && !CPU_TX39XX
>> 2280 help
>> 2281 Using 64kB page size will result in higher performance kernel at
>> 2282 the price of higher memory consumption. This option is available on
>> 2283 all non-R3000 family processor. Not that at the time of this
>> 2284 writing this option is still high experimental.
>> 2285
>> 2286 endchoice
>> 2287
>> 2288 config FORCE_MAX_ZONEORDER
>> 2289 int "Maximum zone order"
>> 2290 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2291 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
>> 2292 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2293 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
>> 2294 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2295 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
>> 2296 range 0 64
>> 2297 default "11"
>> 2298 help
>> 2299 The kernel memory allocator divides physically contiguous memory
>> 2300 blocks into "zones", where each zone is a power of two number of
>> 2301 pages. This option selects the largest power of two that the kernel
>> 2302 keeps in the memory allocator. If you need to allocate very large
>> 2303 blocks of physically contiguous memory, then you may need to
>> 2304 increase this value.
>> 2305
>> 2306 This config option is actually maximum order plus one. For example,
>> 2307 a value of 11 means that the largest free memory block is 2^10 pages.
>> 2308
>> 2309 The page size is not necessarily 4KB. Keep this in mind
>> 2310 when choosing a value for this option.
>> 2311
>> 2312 config BOARD_SCACHE
>> 2313 bool
>> 2314
>> 2315 config IP22_CPU_SCACHE
>> 2316 bool
>> 2317 select BOARD_SCACHE
>> 2318
>> 2319 #
>> 2320 # Support for a MIPS32 / MIPS64 style S-caches
>> 2321 #
>> 2322 config MIPS_CPU_SCACHE
>> 2323 bool
>> 2324 select BOARD_SCACHE
>> 2325
>> 2326 config R5000_CPU_SCACHE
>> 2327 bool
>> 2328 select BOARD_SCACHE
>> 2329
>> 2330 config RM7000_CPU_SCACHE
>> 2331 bool
>> 2332 select BOARD_SCACHE
>> 2333
>> 2334 config SIBYTE_DMA_PAGEOPS
>> 2335 bool "Use DMA to clear/copy pages"
>> 2336 depends on CPU_SB1
>> 2337 help
>> 2338 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 2339 channel. These DMA channels are otherwise unused by the standard
>> 2340 SiByte Linux port. Seems to give a small performance benefit.
>> 2341
>> 2342 config CPU_HAS_PREFETCH
>> 2343 bool
>> 2344
>> 2345 config CPU_GENERIC_DUMP_TLB
>> 2346 bool
>> 2347 default y if !(CPU_R3000 || CPU_TX39XX)
>> 2348
>> 2349 config MIPS_FP_SUPPORT
>> 2350 bool "Floating Point support" if EXPERT
>> 2351 default y
>> 2352 help
>> 2353 Select y to include support for floating point in the kernel
>> 2354 including initialization of FPU hardware, FP context save & restore
>> 2355 and emulation of an FPU where necessary. Without this support any
>> 2356 userland program attempting to use floating point instructions will
>> 2357 receive a SIGILL.
>> 2358
>> 2359 If you know that your userland will not attempt to use floating point
>> 2360 instructions then you can say n here to shrink the kernel a little.
>> 2361
>> 2362 If unsure, say y.
>> 2363
>> 2364 config CPU_R2300_FPU
>> 2365 bool
>> 2366 depends on MIPS_FP_SUPPORT
>> 2367 default y if CPU_R3000 || CPU_TX39XX
>> 2368
>> 2369 config CPU_R3K_TLB
>> 2370 bool
>> 2371
>> 2372 config CPU_R4K_FPU
>> 2373 bool
>> 2374 depends on MIPS_FP_SUPPORT
>> 2375 default y if !CPU_R2300_FPU
>> 2376
>> 2377 config CPU_R4K_CACHE_TLB
>> 2378 bool
>> 2379 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
>> 2380
>> 2381 config MIPS_MT_SMP
>> 2382 bool "MIPS MT SMP support (1 TC on each available VPE)"
78 default y 2383 default y
>> 2384 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
>> 2385 select CPU_MIPSR2_IRQ_VI
>> 2386 select CPU_MIPSR2_IRQ_EI
>> 2387 select SYNC_R4K
>> 2388 select MIPS_MT
>> 2389 select SMP
>> 2390 select SMP_UP
>> 2391 select SYS_SUPPORTS_SMP
>> 2392 select SYS_SUPPORTS_SCHED_SMT
>> 2393 select MIPS_PERF_SHARED_TC_COUNTERS
>> 2394 help
>> 2395 This is a kernel model which is known as SMVP. This is supported
>> 2396 on cores with the MT ASE and uses the available VPEs to implement
>> 2397 virtual processors which supports SMP. This is equivalent to the
>> 2398 Intel Hyperthreading feature. For further information go to
>> 2399 <http://www.imgtec.com/mips/mips-multithreading.asp>.
>> 2400
>> 2401 config MIPS_MT
>> 2402 bool
>> 2403
>> 2404 config SCHED_SMT
>> 2405 bool "SMT (multithreading) scheduler support"
>> 2406 depends on SYS_SUPPORTS_SCHED_SMT
>> 2407 default n
79 help 2408 help
80 Nios II CPUs cannot fetch/store data !! 2409 SMT scheduler support improves the CPU scheduler's decision making
81 i.e., a 2 or 4 byte fetch must start !! 2410 when dealing with MIPS MT enabled cores at a cost of slightly
82 2 or 4. Any non-aligned load/store i !! 2411 increased overhead in some places. If unsure say N here.
83 emulated in software if you say Y he <<
84 impact. <<
85 2412
86 comment "Boot options" !! 2413 config SYS_SUPPORTS_SCHED_SMT
>> 2414 bool
87 2415
88 config CMDLINE_BOOL !! 2416 config SYS_SUPPORTS_MULTITHREADING
89 bool "Default bootloader kernel argume !! 2417 bool
>> 2418
>> 2419 config MIPS_MT_FPAFF
>> 2420 bool "Dynamic FPU affinity for FP-intensive threads"
>> 2421 default y
>> 2422 depends on MIPS_MT_SMP
>> 2423
>> 2424 config MIPSR2_TO_R6_EMULATOR
>> 2425 bool "MIPS R2-to-R6 emulator"
>> 2426 depends on CPU_MIPSR6
>> 2427 depends on MIPS_FP_SUPPORT
90 default y 2428 default y
>> 2429 help
>> 2430 Choose this option if you want to run non-R6 MIPS userland code.
>> 2431 Even if you say 'Y' here, the emulator will still be disabled by
>> 2432 default. You can enable it using the 'mipsr2emu' kernel option.
>> 2433 The only reason this is a build-time option is to save ~14K from the
>> 2434 final kernel image.
>> 2435
>> 2436 config SYS_SUPPORTS_VPE_LOADER
>> 2437 bool
>> 2438 depends on SYS_SUPPORTS_MULTITHREADING
>> 2439 help
>> 2440 Indicates that the platform supports the VPE loader, and provides
>> 2441 physical_memsize.
91 2442
92 config CMDLINE !! 2443 config MIPS_VPE_LOADER
93 string "Default kernel command string" !! 2444 bool "VPE loader support."
94 default "" !! 2445 depends on SYS_SUPPORTS_VPE_LOADER && MODULES
95 depends on CMDLINE_BOOL !! 2446 select CPU_MIPSR2_IRQ_VI
>> 2447 select CPU_MIPSR2_IRQ_EI
>> 2448 select MIPS_MT
96 help 2449 help
97 On some platforms, there is currentl !! 2450 Includes a loader for loading an elf relocatable object
98 pass arguments to the kernel. For th !! 2451 onto another VPE and running it.
99 some command-line options at build t <<
100 other cases you can specify kernel a <<
101 to set them up in board prom initial <<
102 2452
103 config CMDLINE_FORCE !! 2453 config MIPS_VPE_LOADER_CMP
104 bool "Force default kernel command str !! 2454 bool
105 depends on CMDLINE_BOOL !! 2455 default "y"
>> 2456 depends on MIPS_VPE_LOADER && MIPS_CMP
>> 2457
>> 2458 config MIPS_VPE_LOADER_MT
>> 2459 bool
>> 2460 default "y"
>> 2461 depends on MIPS_VPE_LOADER && !MIPS_CMP
>> 2462
>> 2463 config MIPS_VPE_LOADER_TOM
>> 2464 bool "Load VPE program into memory hidden from linux"
>> 2465 depends on MIPS_VPE_LOADER
>> 2466 default y
>> 2467 help
>> 2468 The loader can use memory that is present but has been hidden from
>> 2469 Linux using the kernel command line option "mem=xxMB". It's up to
>> 2470 you to ensure the amount you put in the option and the space your
>> 2471 program requires is less or equal to the amount physically present.
>> 2472
>> 2473 config MIPS_VPE_APSP_API
>> 2474 bool "Enable support for AP/SP API (RTLX)"
>> 2475 depends on MIPS_VPE_LOADER
>> 2476
>> 2477 config MIPS_VPE_APSP_API_CMP
>> 2478 bool
>> 2479 default "y"
>> 2480 depends on MIPS_VPE_APSP_API && MIPS_CMP
>> 2481
>> 2482 config MIPS_VPE_APSP_API_MT
>> 2483 bool
>> 2484 default "y"
>> 2485 depends on MIPS_VPE_APSP_API && !MIPS_CMP
>> 2486
>> 2487 config MIPS_CMP
>> 2488 bool "MIPS CMP framework support (DEPRECATED)"
>> 2489 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
>> 2490 select SMP
>> 2491 select SYNC_R4K
>> 2492 select SYS_SUPPORTS_SMP
>> 2493 select WEAK_ORDERING
>> 2494 default n
>> 2495 help
>> 2496 Select this if you are using a bootloader which implements the "CMP
>> 2497 framework" protocol (ie. YAMON) and want your kernel to make use of
>> 2498 its ability to start secondary CPUs.
>> 2499
>> 2500 Unless you have a specific need, you should use CONFIG_MIPS_CPS
>> 2501 instead of this.
>> 2502
>> 2503 config MIPS_CPS
>> 2504 bool "MIPS Coherent Processing System support"
>> 2505 depends on SYS_SUPPORTS_MIPS_CPS
>> 2506 select MIPS_CM
>> 2507 select MIPS_CPS_PM if HOTPLUG_CPU
>> 2508 select SMP
>> 2509 select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
>> 2510 select SYS_SUPPORTS_HOTPLUG_CPU
>> 2511 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
>> 2512 select SYS_SUPPORTS_SMP
>> 2513 select WEAK_ORDERING
>> 2514 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
106 help 2515 help
107 Set this to have arguments from the !! 2516 Select this if you wish to run an SMP kernel across multiple cores
108 override those passed by the boot lo !! 2517 within a MIPS Coherent Processing System. When this option is
>> 2518 enabled the kernel will probe for other cores and boot them with
>> 2519 no external assistance. It is safe to enable this when hardware
>> 2520 support is unavailable.
>> 2521
>> 2522 config MIPS_CPS_PM
>> 2523 depends on MIPS_CPS
>> 2524 bool
>> 2525
>> 2526 config MIPS_CM
>> 2527 bool
>> 2528 select MIPS_CPC
>> 2529
>> 2530 config MIPS_CPC
>> 2531 bool
>> 2532
>> 2533 config SB1_PASS_2_WORKAROUNDS
>> 2534 bool
>> 2535 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
>> 2536 default y
109 2537
110 config NIOS2_CMDLINE_IGNORE_DTB !! 2538 config SB1_PASS_2_1_WORKAROUNDS
111 bool "Ignore kernel command string fro !! 2539 bool
112 depends on CMDLINE_BOOL !! 2540 depends on CPU_SB1 && CPU_SB1_PASS_2
113 depends on !CMDLINE_FORCE <<
114 default y 2541 default y
>> 2542
>> 2543 choice
>> 2544 prompt "SmartMIPS or microMIPS ASE support"
>> 2545
>> 2546 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
>> 2547 bool "None"
115 help 2548 help
116 Set this to ignore the bootargs prop !! 2549 Select this if you want neither microMIPS nor SmartMIPS support
117 chosen node and fall back to CMDLINE <<
118 2550
119 config NIOS2_PASS_CMDLINE !! 2551 config CPU_HAS_SMARTMIPS
120 bool "Passed kernel command line from !! 2552 depends on SYS_SUPPORTS_SMARTMIPS
>> 2553 bool "SmartMIPS"
121 help 2554 help
122 Use bootargs env variable from u-boo !! 2555 SmartMIPS is a extension of the MIPS32 architecture aimed at
123 will override "Default kernel comman !! 2556 increased security at both hardware and software level for
124 Say N if you are unsure. !! 2557 smartcards. Enabling this option will allow proper use of the
>> 2558 SmartMIPS instructions by Linux applications. However a kernel with
>> 2559 this option will not work on a MIPS core without SmartMIPS core. If
>> 2560 you don't know you probably don't have SmartMIPS and should say N
>> 2561 here.
>> 2562
>> 2563 config CPU_MICROMIPS
>> 2564 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
>> 2565 bool "microMIPS"
>> 2566 help
>> 2567 When this option is enabled the kernel will be built using the
>> 2568 microMIPS ISA
>> 2569
>> 2570 endchoice
125 2571
126 config NIOS2_BOOT_LINK_OFFSET !! 2572 config CPU_HAS_MSA
127 hex "Link address offset for booting" !! 2573 bool "Support for the MIPS SIMD Architecture"
128 default "0x00500000" !! 2574 depends on CPU_SUPPORTS_MSA
>> 2575 depends on MIPS_FP_SUPPORT
>> 2576 depends on 64BIT || MIPS_O32_FP64_SUPPORT
129 help 2577 help
130 This option allows you to set the li !! 2578 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
131 This can be useful if you are on a b !! 2579 and a set of SIMD instructions to operate on them. When this option
132 memory. !! 2580 is enabled the kernel will support allocating & switching MSA
>> 2581 vector register contexts. If you know that your kernel will only be
>> 2582 running on CPUs which do not support MSA or that your userland will
>> 2583 not be making use of it then you may wish to say N here to reduce
>> 2584 the size & complexity of your kernel.
>> 2585
>> 2586 If unsure, say Y.
>> 2587
>> 2588 config CPU_HAS_WB
>> 2589 bool
>> 2590
>> 2591 config XKS01
>> 2592 bool
>> 2593
>> 2594 config CPU_HAS_DIEI
>> 2595 depends on !CPU_DIEI_BROKEN
>> 2596 bool
133 2597
134 endmenu !! 2598 config CPU_DIEI_BROKEN
>> 2599 bool
>> 2600
>> 2601 config CPU_HAS_RIXI
>> 2602 bool
>> 2603
>> 2604 config CPU_NO_LOAD_STORE_LR
>> 2605 bool
>> 2606 help
>> 2607 CPU lacks support for unaligned load and store instructions:
>> 2608 LWL, LWR, SWL, SWR (Load/store word left/right).
>> 2609 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
>> 2610 systems).
>> 2611
>> 2612 #
>> 2613 # Vectored interrupt mode is an R2 feature
>> 2614 #
>> 2615 config CPU_MIPSR2_IRQ_VI
>> 2616 bool
>> 2617
>> 2618 #
>> 2619 # Extended interrupt mode is an R2 feature
>> 2620 #
>> 2621 config CPU_MIPSR2_IRQ_EI
>> 2622 bool
>> 2623
>> 2624 config CPU_HAS_SYNC
>> 2625 bool
>> 2626 depends on !CPU_R3000
>> 2627 default y
>> 2628
>> 2629 #
>> 2630 # CPU non-features
>> 2631 #
>> 2632 config CPU_DADDI_WORKAROUNDS
>> 2633 bool
>> 2634
>> 2635 config CPU_R4000_WORKAROUNDS
>> 2636 bool
>> 2637 select CPU_R4400_WORKAROUNDS
>> 2638
>> 2639 config CPU_R4400_WORKAROUNDS
>> 2640 bool
>> 2641
>> 2642 config CPU_R4X00_BUGS64
>> 2643 bool
>> 2644 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
>> 2645
>> 2646 config MIPS_ASID_SHIFT
>> 2647 int
>> 2648 default 6 if CPU_R3000 || CPU_TX39XX
>> 2649 default 0
>> 2650
>> 2651 config MIPS_ASID_BITS
>> 2652 int
>> 2653 default 0 if MIPS_ASID_BITS_VARIABLE
>> 2654 default 6 if CPU_R3000 || CPU_TX39XX
>> 2655 default 8
>> 2656
>> 2657 config MIPS_ASID_BITS_VARIABLE
>> 2658 bool
>> 2659
>> 2660 config MIPS_CRC_SUPPORT
>> 2661 bool
>> 2662
>> 2663 # R4600 erratum. Due to the lack of errata information the exact
>> 2664 # technical details aren't known. I've experimentally found that disabling
>> 2665 # interrupts during indexed I-cache flushes seems to be sufficient to deal
>> 2666 # with the issue.
>> 2667 config WAR_R4600_V1_INDEX_ICACHEOP
>> 2668 bool
>> 2669
>> 2670 # Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata:
>> 2671 #
>> 2672 # 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
>> 2673 # Hit_Invalidate_D and Create_Dirty_Excl_D should only be
>> 2674 # executed if there is no other dcache activity. If the dcache is
>> 2675 # accessed for another instruction immediately preceding when these
>> 2676 # cache instructions are executing, it is possible that the dcache
>> 2677 # tag match outputs used by these cache instructions will be
>> 2678 # incorrect. These cache instructions should be preceded by at least
>> 2679 # four instructions that are not any kind of load or store
>> 2680 # instruction.
>> 2681 #
>> 2682 # This is not allowed: lw
>> 2683 # nop
>> 2684 # nop
>> 2685 # nop
>> 2686 # cache Hit_Writeback_Invalidate_D
>> 2687 #
>> 2688 # This is allowed: lw
>> 2689 # nop
>> 2690 # nop
>> 2691 # nop
>> 2692 # nop
>> 2693 # cache Hit_Writeback_Invalidate_D
>> 2694 config WAR_R4600_V1_HIT_CACHEOP
>> 2695 bool
>> 2696
>> 2697 # Writeback and invalidate the primary cache dcache before DMA.
>> 2698 #
>> 2699 # R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
>> 2700 # Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
>> 2701 # operate correctly if the internal data cache refill buffer is empty. These
>> 2702 # CACHE instructions should be separated from any potential data cache miss
>> 2703 # by a load instruction to an uncached address to empty the response buffer."
>> 2704 # (Revision 2.0 device errata from IDT available on https://www.idt.com/
>> 2705 # in .pdf format.)
>> 2706 config WAR_R4600_V2_HIT_CACHEOP
>> 2707 bool
>> 2708
>> 2709 # From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
>> 2710 # the line which this instruction itself exists, the following
>> 2711 # operation is not guaranteed."
>> 2712 #
>> 2713 # Workaround: do two phase flushing for Index_Invalidate_I
>> 2714 config WAR_TX49XX_ICACHE_INDEX_INV
>> 2715 bool
>> 2716
>> 2717 # The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
>> 2718 # opposes it being called that) where invalid instructions in the same
>> 2719 # I-cache line worth of instructions being fetched may case spurious
>> 2720 # exceptions.
>> 2721 config WAR_ICACHE_REFILLS
>> 2722 bool
>> 2723
>> 2724 # On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
>> 2725 # may cause ll / sc and lld / scd sequences to execute non-atomically.
>> 2726 config WAR_R10000_LLSC
>> 2727 bool
>> 2728
>> 2729 # 34K core erratum: "Problems Executing the TLBR Instruction"
>> 2730 config WAR_MIPS34K_MISSED_ITLB
>> 2731 bool
>> 2732
>> 2733 #
>> 2734 # - Highmem only makes sense for the 32-bit kernel.
>> 2735 # - The current highmem code will only work properly on physically indexed
>> 2736 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 2737 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 2738 # moment we protect the user and offer the highmem option only on machines
>> 2739 # where it's known to be safe. This will not offer highmem on a few systems
>> 2740 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 2741 # indexed CPUs but we're playing safe.
>> 2742 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
>> 2743 # know they might have memory configurations that could make use of highmem
>> 2744 # support.
>> 2745 #
>> 2746 config HIGHMEM
>> 2747 bool "High Memory Support"
>> 2748 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
>> 2749 select KMAP_LOCAL
>> 2750
>> 2751 config CPU_SUPPORTS_HIGHMEM
>> 2752 bool
>> 2753
>> 2754 config SYS_SUPPORTS_HIGHMEM
>> 2755 bool
>> 2756
>> 2757 config SYS_SUPPORTS_SMARTMIPS
>> 2758 bool
>> 2759
>> 2760 config SYS_SUPPORTS_MICROMIPS
>> 2761 bool
>> 2762
>> 2763 config SYS_SUPPORTS_MIPS16
>> 2764 bool
>> 2765 help
>> 2766 This option must be set if a kernel might be executed on a MIPS16-
>> 2767 enabled CPU even if MIPS16 is not actually being used. In other
>> 2768 words, it makes the kernel MIPS16-tolerant.
>> 2769
>> 2770 config CPU_SUPPORTS_MSA
>> 2771 bool
>> 2772
>> 2773 config ARCH_FLATMEM_ENABLE
>> 2774 def_bool y
>> 2775 depends on !NUMA && !CPU_LOONGSON2EF
>> 2776
>> 2777 config ARCH_SPARSEMEM_ENABLE
>> 2778 bool
>> 2779 select SPARSEMEM_STATIC if !SGI_IP27
>> 2780
>> 2781 config NUMA
>> 2782 bool "NUMA Support"
>> 2783 depends on SYS_SUPPORTS_NUMA
>> 2784 select SMP
>> 2785 help
>> 2786 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 2787 Access). This option improves performance on systems with more
>> 2788 than two nodes; on two node systems it is generally better to
>> 2789 leave it disabled; on single node systems leave this option
>> 2790 disabled.
>> 2791
>> 2792 config SYS_SUPPORTS_NUMA
>> 2793 bool
>> 2794
>> 2795 config HAVE_SETUP_PER_CPU_AREA
>> 2796 def_bool y
>> 2797 depends on NUMA
>> 2798
>> 2799 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 2800 def_bool y
>> 2801 depends on NUMA
>> 2802
>> 2803 config RELOCATABLE
>> 2804 bool "Relocatable kernel"
>> 2805 depends on SYS_SUPPORTS_RELOCATABLE
>> 2806 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
>> 2807 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
>> 2808 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
>> 2809 CPU_P5600 || CAVIUM_OCTEON_SOC || \
>> 2810 CPU_LOONGSON64
>> 2811 help
>> 2812 This builds a kernel image that retains relocation information
>> 2813 so it can be loaded someplace besides the default 1MB.
>> 2814 The relocations make the kernel binary about 15% larger,
>> 2815 but are discarded at runtime
>> 2816
>> 2817 config RELOCATION_TABLE_SIZE
>> 2818 hex "Relocation table size"
>> 2819 depends on RELOCATABLE
>> 2820 range 0x0 0x01000000
>> 2821 default "0x00200000" if CPU_LOONGSON64
>> 2822 default "0x00100000"
>> 2823 help
>> 2824 A table of relocation data will be appended to the kernel binary
>> 2825 and parsed at boot to fix up the relocated kernel.
135 2826
136 menu "Advanced setup" !! 2827 This option allows the amount of space reserved for the table to be
>> 2828 adjusted, although the default of 1Mb should be ok in most cases.
137 2829
138 config ADVANCED_OPTIONS !! 2830 The build will fail and a valid size suggested if this is too small.
139 bool "Prompt for advanced kernel confi <<
140 2831
141 comment "Default settings for advanced configu !! 2832 If unsure, leave at the default value.
142 depends on !ADVANCED_OPTIONS <<
143 2833
144 config NIOS2_KERNEL_MMU_REGION_BASE_BOOL !! 2834 config RANDOMIZE_BASE
145 bool "Set custom kernel MMU region bas !! 2835 bool "Randomize the address of the kernel image"
146 depends on ADVANCED_OPTIONS !! 2836 depends on RELOCATABLE
>> 2837 help
>> 2838 Randomizes the physical and virtual address at which the
>> 2839 kernel image is loaded, as a security feature that
>> 2840 deters exploit attempts relying on knowledge of the location
>> 2841 of kernel internals.
>> 2842
>> 2843 Entropy is generated using any coprocessor 0 registers available.
>> 2844
>> 2845 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
>> 2846
>> 2847 If unsure, say N.
>> 2848
>> 2849 config RANDOMIZE_BASE_MAX_OFFSET
>> 2850 hex "Maximum kASLR offset" if EXPERT
>> 2851 depends on RANDOMIZE_BASE
>> 2852 range 0x0 0x40000000 if EVA || 64BIT
>> 2853 range 0x0 0x08000000
>> 2854 default "0x01000000"
147 help 2855 help
148 This option allows you to set the vi !! 2856 When kASLR is active, this provides the maximum offset that will
>> 2857 be applied to the kernel image. It should be set according to the
>> 2858 amount of physical RAM available in the target system minus
>> 2859 PHYSICAL_START and must be a power of 2.
149 2860
150 Say N here unless you know what you !! 2861 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
>> 2862 EVA or 64-bit. The default is 16Mb.
151 2863
152 config NIOS2_KERNEL_MMU_REGION_BASE !! 2864 config NODES_SHIFT
153 hex "Virtual base address of the kerne !! 2865 int
154 default "0x80000000" !! 2866 default "6"
>> 2867 depends on NUMA
>> 2868
>> 2869 config HW_PERF_EVENTS
>> 2870 bool "Enable hardware performance counter support for perf events"
>> 2871 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
>> 2872 default y
155 help 2873 help
156 This option allows you to set the vi !! 2874 Enable hardware performance counter support for perf events. If
>> 2875 disabled, perf events will use software events only.
157 2876
158 config NIOS2_KERNEL_REGION_BASE_BOOL !! 2877 config DMI
159 bool "Set custom kernel region base ad !! 2878 bool "Enable DMI scanning"
160 depends on ADVANCED_OPTIONS !! 2879 depends on MACH_LOONGSON64
>> 2880 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
>> 2881 default y
>> 2882 help
>> 2883 Enabled scanning of DMI to identify machine quirks. Say Y
>> 2884 here unless you have verified that your setup is not
>> 2885 affected by entries in the DMI blacklist. Required by PNP
>> 2886 BIOS code.
>> 2887
>> 2888 config SMP
>> 2889 bool "Multi-Processing support"
>> 2890 depends on SYS_SUPPORTS_SMP
>> 2891 help
>> 2892 This enables support for systems with more than one CPU. If you have
>> 2893 a system with only one CPU, say N. If you have a system with more
>> 2894 than one CPU, say Y.
>> 2895
>> 2896 If you say N here, the kernel will run on uni- and multiprocessor
>> 2897 machines, but will use only one CPU of a multiprocessor machine. If
>> 2898 you say Y here, the kernel will run on many, but not all,
>> 2899 uniprocessor machines. On a uniprocessor machine, the kernel
>> 2900 will run faster if you say N here.
>> 2901
>> 2902 People using multiprocessor machines who say Y here should also say
>> 2903 Y to "Enhanced Real Time Clock Support", below.
>> 2904
>> 2905 See also the SMP-HOWTO available at
>> 2906 <https://www.tldp.org/docs.html#howto>.
>> 2907
>> 2908 If you don't know what to do here, say N.
>> 2909
>> 2910 config HOTPLUG_CPU
>> 2911 bool "Support for hot-pluggable CPUs"
>> 2912 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
161 help 2913 help
162 This option allows you to set the vi !! 2914 Say Y here to allow turning CPUs off and on. CPUs can be
>> 2915 controlled through /sys/devices/system/cpu.
>> 2916 (Note: power management support will enable this option
>> 2917 automatically on SMP systems. )
>> 2918 Say N if you want to disable CPU hotplug.
>> 2919
>> 2920 config SMP_UP
>> 2921 bool
>> 2922
>> 2923 config SYS_SUPPORTS_MIPS_CMP
>> 2924 bool
>> 2925
>> 2926 config SYS_SUPPORTS_MIPS_CPS
>> 2927 bool
163 2928
164 Say N here unless you know what you !! 2929 config SYS_SUPPORTS_SMP
>> 2930 bool
165 2931
166 config NIOS2_KERNEL_REGION_BASE !! 2932 config NR_CPUS_DEFAULT_4
167 hex "Virtual base address of the kerne !! 2933 bool
168 default "0xc0000000" <<
169 2934
170 config NIOS2_IO_REGION_BASE_BOOL !! 2935 config NR_CPUS_DEFAULT_8
171 bool "Set custom I/O region base addre !! 2936 bool
172 depends on ADVANCED_OPTIONS !! 2937
>> 2938 config NR_CPUS_DEFAULT_16
>> 2939 bool
>> 2940
>> 2941 config NR_CPUS_DEFAULT_32
>> 2942 bool
>> 2943
>> 2944 config NR_CPUS_DEFAULT_64
>> 2945 bool
>> 2946
>> 2947 config NR_CPUS
>> 2948 int "Maximum number of CPUs (2-256)"
>> 2949 range 2 256
>> 2950 depends on SMP
>> 2951 default "4" if NR_CPUS_DEFAULT_4
>> 2952 default "8" if NR_CPUS_DEFAULT_8
>> 2953 default "16" if NR_CPUS_DEFAULT_16
>> 2954 default "32" if NR_CPUS_DEFAULT_32
>> 2955 default "64" if NR_CPUS_DEFAULT_64
173 help 2956 help
174 This option allows you to set the vi !! 2957 This allows you to specify the maximum number of CPUs which this
>> 2958 kernel will support. The maximum supported value is 32 for 32-bit
>> 2959 kernel and 64 for 64-bit kernels; the minimum value which makes
>> 2960 sense is 1 for Qemu (useful only for kernel debugging purposes)
>> 2961 and 2 for all others.
>> 2962
>> 2963 This is purely to save memory - each supported CPU adds
>> 2964 approximately eight kilobytes to the kernel image. For best
>> 2965 performance should round up your number of processors to the next
>> 2966 power of two.
>> 2967
>> 2968 config MIPS_PERF_SHARED_TC_COUNTERS
>> 2969 bool
>> 2970
>> 2971 config MIPS_NR_CPU_NR_MAP_1024
>> 2972 bool
>> 2973
>> 2974 config MIPS_NR_CPU_NR_MAP
>> 2975 int
>> 2976 depends on SMP
>> 2977 default 1024 if MIPS_NR_CPU_NR_MAP_1024
>> 2978 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
>> 2979
>> 2980 #
>> 2981 # Timer Interrupt Frequency Configuration
>> 2982 #
>> 2983
>> 2984 choice
>> 2985 prompt "Timer frequency"
>> 2986 default HZ_250
>> 2987 help
>> 2988 Allows the configuration of the timer frequency.
>> 2989
>> 2990 config HZ_24
>> 2991 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
175 2992
176 Say N here unless you know what you !! 2993 config HZ_48
>> 2994 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
177 2995
178 config NIOS2_IO_REGION_BASE !! 2996 config HZ_100
179 hex "Virtual base address of the I/O r !! 2997 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
180 default "0xe0000000" !! 2998
>> 2999 config HZ_128
>> 3000 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
>> 3001
>> 3002 config HZ_250
>> 3003 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
>> 3004
>> 3005 config HZ_256
>> 3006 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
>> 3007
>> 3008 config HZ_1000
>> 3009 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
>> 3010
>> 3011 config HZ_1024
>> 3012 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
>> 3013
>> 3014 endchoice
>> 3015
>> 3016 config SYS_SUPPORTS_24HZ
>> 3017 bool
>> 3018
>> 3019 config SYS_SUPPORTS_48HZ
>> 3020 bool
>> 3021
>> 3022 config SYS_SUPPORTS_100HZ
>> 3023 bool
>> 3024
>> 3025 config SYS_SUPPORTS_128HZ
>> 3026 bool
>> 3027
>> 3028 config SYS_SUPPORTS_250HZ
>> 3029 bool
>> 3030
>> 3031 config SYS_SUPPORTS_256HZ
>> 3032 bool
>> 3033
>> 3034 config SYS_SUPPORTS_1000HZ
>> 3035 bool
>> 3036
>> 3037 config SYS_SUPPORTS_1024HZ
>> 3038 bool
>> 3039
>> 3040 config SYS_SUPPORTS_ARBIT_HZ
>> 3041 bool
>> 3042 default y if !SYS_SUPPORTS_24HZ && \
>> 3043 !SYS_SUPPORTS_48HZ && \
>> 3044 !SYS_SUPPORTS_100HZ && \
>> 3045 !SYS_SUPPORTS_128HZ && \
>> 3046 !SYS_SUPPORTS_250HZ && \
>> 3047 !SYS_SUPPORTS_256HZ && \
>> 3048 !SYS_SUPPORTS_1000HZ && \
>> 3049 !SYS_SUPPORTS_1024HZ
>> 3050
>> 3051 config HZ
>> 3052 int
>> 3053 default 24 if HZ_24
>> 3054 default 48 if HZ_48
>> 3055 default 100 if HZ_100
>> 3056 default 128 if HZ_128
>> 3057 default 250 if HZ_250
>> 3058 default 256 if HZ_256
>> 3059 default 1000 if HZ_1000
>> 3060 default 1024 if HZ_1024
>> 3061
>> 3062 config SCHED_HRTICK
>> 3063 def_bool HIGH_RES_TIMERS
>> 3064
>> 3065 config KEXEC
>> 3066 bool "Kexec system call"
>> 3067 select KEXEC_CORE
>> 3068 help
>> 3069 kexec is a system call that implements the ability to shutdown your
>> 3070 current kernel, and to start another kernel. It is like a reboot
>> 3071 but it is independent of the system firmware. And like a reboot
>> 3072 you can start any kernel with it, not just Linux.
>> 3073
>> 3074 The name comes from the similarity to the exec system call.
>> 3075
>> 3076 It is an ongoing process to be certain the hardware in a machine
>> 3077 is properly shutdown, so do not be surprised if this code does not
>> 3078 initially work for you. As of this writing the exact hardware
>> 3079 interface is strongly in flux, so no good recommendation can be
>> 3080 made.
>> 3081
>> 3082 config CRASH_DUMP
>> 3083 bool "Kernel crash dumps"
>> 3084 help
>> 3085 Generate crash dump after being started by kexec.
>> 3086 This should be normally only set in special crash dump kernels
>> 3087 which are loaded in the main kernel with kexec-tools into
>> 3088 a specially reserved region and then later executed after
>> 3089 a crash by kdump/kexec. The crash dump kernel must be compiled
>> 3090 to a memory address not used by the main kernel or firmware using
>> 3091 PHYSICAL_START.
>> 3092
>> 3093 config PHYSICAL_START
>> 3094 hex "Physical address where the kernel is loaded"
>> 3095 default "0xffffffff84000000"
>> 3096 depends on CRASH_DUMP
>> 3097 help
>> 3098 This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
>> 3099 If you plan to use kernel for capturing the crash dump change
>> 3100 this value to start of the reserved region (the "X" value as
>> 3101 specified in the "crashkernel=YM@XM" command line boot parameter
>> 3102 passed to the panic-ed kernel).
>> 3103
>> 3104 config MIPS_O32_FP64_SUPPORT
>> 3105 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
>> 3106 depends on 32BIT || MIPS32_O32
>> 3107 help
>> 3108 When this is enabled, the kernel will support use of 64-bit floating
>> 3109 point registers with binaries using the O32 ABI along with the
>> 3110 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
>> 3111 32-bit MIPS systems this support is at the cost of increasing the
>> 3112 size and complexity of the compiled FPU emulator. Thus if you are
>> 3113 running a MIPS32 system and know that none of your userland binaries
>> 3114 will require 64-bit floating point, you may wish to reduce the size
>> 3115 of your kernel & potentially improve FP emulation performance by
>> 3116 saying N here.
>> 3117
>> 3118 Although binutils currently supports use of this flag the details
>> 3119 concerning its effect upon the O32 ABI in userland are still being
>> 3120 worked on. In order to avoid userland becoming dependent upon current
>> 3121 behaviour before the details have been finalised, this option should
>> 3122 be considered experimental and only enabled by those working upon
>> 3123 said details.
>> 3124
>> 3125 If unsure, say N.
>> 3126
>> 3127 config USE_OF
>> 3128 bool
>> 3129 select OF
>> 3130 select OF_EARLY_FLATTREE
>> 3131 select IRQ_DOMAIN
>> 3132
>> 3133 config UHI_BOOT
>> 3134 bool
>> 3135
>> 3136 config BUILTIN_DTB
>> 3137 bool
>> 3138
>> 3139 choice
>> 3140 prompt "Kernel appended dtb support" if USE_OF
>> 3141 default MIPS_NO_APPENDED_DTB
>> 3142
>> 3143 config MIPS_NO_APPENDED_DTB
>> 3144 bool "None"
>> 3145 help
>> 3146 Do not enable appended dtb support.
>> 3147
>> 3148 config MIPS_ELF_APPENDED_DTB
>> 3149 bool "vmlinux"
>> 3150 help
>> 3151 With this option, the boot code will look for a device tree binary
>> 3152 DTB) included in the vmlinux ELF section .appended_dtb. By default
>> 3153 it is empty and the DTB can be appended using binutils command
>> 3154 objcopy:
>> 3155
>> 3156 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
>> 3157
>> 3158 This is meant as a backward compatibility convenience for those
>> 3159 systems with a bootloader that can't be upgraded to accommodate
>> 3160 the documented boot protocol using a device tree.
>> 3161
>> 3162 config MIPS_RAW_APPENDED_DTB
>> 3163 bool "vmlinux.bin or vmlinuz.bin"
>> 3164 help
>> 3165 With this option, the boot code will look for a device tree binary
>> 3166 DTB) appended to raw vmlinux.bin or vmlinuz.bin.
>> 3167 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
>> 3168
>> 3169 This is meant as a backward compatibility convenience for those
>> 3170 systems with a bootloader that can't be upgraded to accommodate
>> 3171 the documented boot protocol using a device tree.
>> 3172
>> 3173 Beware that there is very little in terms of protection against
>> 3174 this option being confused by leftover garbage in memory that might
>> 3175 look like a DTB header after a reboot if no actual DTB is appended
>> 3176 to vmlinux.bin. Do not leave this option active in a production kernel
>> 3177 if you don't intend to always append a DTB.
>> 3178 endchoice
>> 3179
>> 3180 choice
>> 3181 prompt "Kernel command line type" if !CMDLINE_OVERRIDE
>> 3182 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
>> 3183 !MACH_LOONGSON64 && !MIPS_MALTA && \
>> 3184 !CAVIUM_OCTEON_SOC
>> 3185 default MIPS_CMDLINE_FROM_BOOTLOADER
>> 3186
>> 3187 config MIPS_CMDLINE_FROM_DTB
>> 3188 depends on USE_OF
>> 3189 bool "Dtb kernel arguments if available"
>> 3190
>> 3191 config MIPS_CMDLINE_DTB_EXTEND
>> 3192 depends on USE_OF
>> 3193 bool "Extend dtb kernel arguments with bootloader arguments"
>> 3194
>> 3195 config MIPS_CMDLINE_FROM_BOOTLOADER
>> 3196 bool "Bootloader kernel arguments if available"
>> 3197
>> 3198 config MIPS_CMDLINE_BUILTIN_EXTEND
>> 3199 depends on CMDLINE_BOOL
>> 3200 bool "Extend builtin kernel arguments with bootloader arguments"
>> 3201 endchoice
>> 3202
>> 3203 endmenu
>> 3204
>> 3205 config LOCKDEP_SUPPORT
>> 3206 bool
>> 3207 default y
>> 3208
>> 3209 config STACKTRACE_SUPPORT
>> 3210 bool
>> 3211 default y
>> 3212
>> 3213 config PGTABLE_LEVELS
>> 3214 int
>> 3215 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
>> 3216 default 3 if 64BIT && !PAGE_SIZE_64KB
>> 3217 default 2
>> 3218
>> 3219 config MIPS_AUTO_PFN_OFFSET
>> 3220 bool
>> 3221
>> 3222 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 3223
>> 3224 config PCI_DRIVERS_GENERIC
>> 3225 select PCI_DOMAINS_GENERIC if PCI
>> 3226 bool
>> 3227
>> 3228 config PCI_DRIVERS_LEGACY
>> 3229 def_bool !PCI_DRIVERS_GENERIC
>> 3230 select NO_GENERIC_PCI_IOPORT_MAP
>> 3231 select PCI_DOMAINS if PCI
>> 3232
>> 3233 #
>> 3234 # ISA support is now enabled via select. Too many systems still have the one
>> 3235 # or other ISA chip on the board that users don't know about so don't expect
>> 3236 # users to choose the right thing ...
>> 3237 #
>> 3238 config ISA
>> 3239 bool
>> 3240
>> 3241 config TC
>> 3242 bool "TURBOchannel support"
>> 3243 depends on MACH_DECSTATION
>> 3244 help
>> 3245 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 3246 processors. TURBOchannel programming specifications are available
>> 3247 at:
>> 3248 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
>> 3249 and:
>> 3250 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
>> 3251 Linux driver support status is documented at:
>> 3252 <http://www.linux-mips.org/wiki/DECstation>
>> 3253
>> 3254 config MMU
>> 3255 bool
>> 3256 default y
>> 3257
>> 3258 config ARCH_MMAP_RND_BITS_MIN
>> 3259 default 12 if 64BIT
>> 3260 default 8
>> 3261
>> 3262 config ARCH_MMAP_RND_BITS_MAX
>> 3263 default 18 if 64BIT
>> 3264 default 15
>> 3265
>> 3266 config ARCH_MMAP_RND_COMPAT_BITS_MIN
>> 3267 default 8
>> 3268
>> 3269 config ARCH_MMAP_RND_COMPAT_BITS_MAX
>> 3270 default 15
>> 3271
>> 3272 config I8253
>> 3273 bool
>> 3274 select CLKSRC_I8253
>> 3275 select CLKEVT_I8253
>> 3276 select MIPS_EXTERNAL_TIMER
>> 3277 endmenu
>> 3278
>> 3279 config TRAD_SIGNALS
>> 3280 bool
>> 3281
>> 3282 config MIPS32_COMPAT
>> 3283 bool
>> 3284
>> 3285 config COMPAT
>> 3286 bool
>> 3287
>> 3288 config SYSVIPC_COMPAT
>> 3289 bool
>> 3290
>> 3291 config MIPS32_O32
>> 3292 bool "Kernel support for o32 binaries"
>> 3293 depends on 64BIT
>> 3294 select ARCH_WANT_OLD_COMPAT_IPC
>> 3295 select COMPAT
>> 3296 select MIPS32_COMPAT
>> 3297 select SYSVIPC_COMPAT if SYSVIPC
>> 3298 help
>> 3299 Select this option if you want to run o32 binaries. These are pure
>> 3300 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 3301 existing binaries are in this format.
>> 3302
>> 3303 If unsure, say Y.
>> 3304
>> 3305 config MIPS32_N32
>> 3306 bool "Kernel support for n32 binaries"
>> 3307 depends on 64BIT
>> 3308 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
>> 3309 select COMPAT
>> 3310 select MIPS32_COMPAT
>> 3311 select SYSVIPC_COMPAT if SYSVIPC
>> 3312 help
>> 3313 Select this option if you want to run n32 binaries. These are
>> 3314 64-bit binaries using 32-bit quantities for addressing and certain
>> 3315 data that would normally be 64-bit. They are used in special
>> 3316 cases.
>> 3317
>> 3318 If unsure, say N.
>> 3319
>> 3320 menu "Power management options"
>> 3321
>> 3322 config ARCH_HIBERNATION_POSSIBLE
>> 3323 def_bool y
>> 3324 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
>> 3325
>> 3326 config ARCH_SUSPEND_POSSIBLE
>> 3327 def_bool y
>> 3328 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
>> 3329
>> 3330 source "kernel/power/Kconfig"
181 3331
182 endmenu 3332 endmenu
>> 3333
>> 3334 config MIPS_EXTERNAL_TIMER
>> 3335 bool
>> 3336
>> 3337 menu "CPU Power Management"
>> 3338
>> 3339 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
>> 3340 source "drivers/cpufreq/Kconfig"
>> 3341 endif
>> 3342
>> 3343 source "drivers/cpuidle/Kconfig"
>> 3344
>> 3345 endmenu
>> 3346
>> 3347 source "drivers/firmware/Kconfig"
>> 3348
>> 3349 source "arch/mips/kvm/Kconfig"
>> 3350
>> 3351 source "arch/mips/vdso/Kconfig"
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