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TOMOYO Linux Cross Reference
Linux/arch/xtensa/Kconfig

Version: ~ [ linux-6.12-rc7 ] ~ [ linux-6.11.7 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.60 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.116 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.171 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.229 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.285 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.323 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.12 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /arch/xtensa/Kconfig (Version linux-6.12-rc7) and /arch/mips/Kconfig (Version linux-6.7.12)


  1 # SPDX-License-Identifier: GPL-2.0                  1 # SPDX-License-Identifier: GPL-2.0
  2 config XTENSA                                  !!   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_BINFMT_FLAT if !MMU    !!   6         select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
  7         select ARCH_HAS_CURRENT_STACK_POINTER  !!   7         select ARCH_HAS_CPU_FINALIZE_INIT
  8         select ARCH_HAS_DEBUG_VM_PGTABLE       !!   8         select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
  9         select ARCH_HAS_DMA_PREP_COHERENT if M !!   9         select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
 10         select ARCH_HAS_GCOV_PROFILE_ALL       !!  10         select ARCH_HAS_FORTIFY_SOURCE
 11         select ARCH_HAS_KCOV                       11         select ARCH_HAS_KCOV
 12         select ARCH_HAS_SYNC_DMA_FOR_CPU if MM !!  12         select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
 13         select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !!  13         select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
 14         select ARCH_HAS_DMA_SET_UNCACHED if MM !!  14         select ARCH_HAS_STRNCPY_FROM_USER
 15         select ARCH_HAS_STRNCPY_FROM_USER if ! << 
 16         select ARCH_HAS_STRNLEN_USER               15         select ARCH_HAS_STRNLEN_USER
 17         select ARCH_NEED_CMPXCHG_1_EMU         !!  16         select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
                                                   >>  17         select ARCH_HAS_UBSAN_SANITIZE_ALL
                                                   >>  18         select ARCH_HAS_GCOV_PROFILE_ALL
                                                   >>  19         select ARCH_KEEP_MEMBLOCK
                                                   >>  20         select ARCH_USE_BUILTIN_BSWAP
                                                   >>  21         select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
 18         select ARCH_USE_MEMTEST                    22         select ARCH_USE_MEMTEST
 19         select ARCH_USE_QUEUED_RWLOCKS             23         select ARCH_USE_QUEUED_RWLOCKS
 20         select ARCH_USE_QUEUED_SPINLOCKS           24         select ARCH_USE_QUEUED_SPINLOCKS
                                                   >>  25         select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
                                                   >>  26         select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
 21         select ARCH_WANT_IPC_PARSE_VERSION         27         select ARCH_WANT_IPC_PARSE_VERSION
                                                   >>  28         select ARCH_WANT_LD_ORPHAN_WARN
 22         select BUILDTIME_TABLE_SORT                29         select BUILDTIME_TABLE_SORT
 23         select CLONE_BACKWARDS                     30         select CLONE_BACKWARDS
 24         select COMMON_CLK                      !!  31         select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
 25         select DMA_NONCOHERENT_MMAP if MMU     !!  32         select CPU_PM if CPU_IDLE
 26         select GENERIC_ATOMIC64                !!  33         select GENERIC_ATOMIC64 if !64BIT
                                                   >>  34         select GENERIC_CMOS_UPDATE
                                                   >>  35         select GENERIC_CPU_AUTOPROBE
                                                   >>  36         select GENERIC_GETTIMEOFDAY
                                                   >>  37         select GENERIC_IOMAP
                                                   >>  38         select GENERIC_IRQ_PROBE
 27         select GENERIC_IRQ_SHOW                    39         select GENERIC_IRQ_SHOW
                                                   >>  40         select GENERIC_ISA_DMA if EISA
                                                   >>  41         select GENERIC_LIB_ASHLDI3
                                                   >>  42         select GENERIC_LIB_ASHRDI3
 28         select GENERIC_LIB_CMPDI2                  43         select GENERIC_LIB_CMPDI2
 29         select GENERIC_LIB_MULDI3              !!  44         select GENERIC_LIB_LSHRDI3
 30         select GENERIC_LIB_UCMPDI2                 45         select GENERIC_LIB_UCMPDI2
 31         select GENERIC_PCI_IOMAP               !!  46         select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
 32         select GENERIC_SCHED_CLOCK             !!  47         select GENERIC_SMP_IDLE_THREAD
 33         select GENERIC_IOREMAP if MMU          !!  48         select GENERIC_IDLE_POLL_SETUP
 34         select HAVE_ARCH_AUDITSYSCALL          !!  49         select GENERIC_TIME_VSYSCALL
 35         select HAVE_ARCH_JUMP_LABEL if !XIP_KE !!  50         select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
 36         select HAVE_ARCH_KASAN if MMU && !XIP_ !!  51         select HAS_IOPORT if !NO_IOPORT_MAP || ISA
 37         select HAVE_ARCH_KCSAN                 !!  52         select HAVE_ARCH_COMPILER_H
                                                   >>  53         select HAVE_ARCH_JUMP_LABEL
                                                   >>  54         select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
                                                   >>  55         select HAVE_ARCH_MMAP_RND_BITS if MMU
                                                   >>  56         select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
 38         select HAVE_ARCH_SECCOMP_FILTER            57         select HAVE_ARCH_SECCOMP_FILTER
 39         select HAVE_ARCH_TRACEHOOK                 58         select HAVE_ARCH_TRACEHOOK
                                                   >>  59         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
 40         select HAVE_ASM_MODVERSIONS                60         select HAVE_ASM_MODVERSIONS
 41         select HAVE_CONTEXT_TRACKING_USER          61         select HAVE_CONTEXT_TRACKING_USER
                                                   >>  62         select HAVE_TIF_NOHZ
                                                   >>  63         select HAVE_C_RECORDMCOUNT
 42         select HAVE_DEBUG_KMEMLEAK                 64         select HAVE_DEBUG_KMEMLEAK
                                                   >>  65         select HAVE_DEBUG_STACKOVERFLOW
 43         select HAVE_DMA_CONTIGUOUS                 66         select HAVE_DMA_CONTIGUOUS
                                                   >>  67         select HAVE_DYNAMIC_FTRACE
                                                   >>  68         select HAVE_EBPF_JIT if !CPU_MICROMIPS
 44         select HAVE_EXIT_THREAD                    69         select HAVE_EXIT_THREAD
                                                   >>  70         select HAVE_FAST_GUP
                                                   >>  71         select HAVE_FTRACE_MCOUNT_RECORD
                                                   >>  72         select HAVE_FUNCTION_GRAPH_TRACER
 45         select HAVE_FUNCTION_TRACER                73         select HAVE_FUNCTION_TRACER
 46         select HAVE_GCC_PLUGINS if GCC_VERSION !!  74         select HAVE_GCC_PLUGINS
 47         select HAVE_HW_BREAKPOINT if PERF_EVEN !!  75         select HAVE_GENERIC_VDSO
                                                   >>  76         select HAVE_IOREMAP_PROT
                                                   >>  77         select HAVE_IRQ_EXIT_ON_IRQ_STACK
 48         select HAVE_IRQ_TIME_ACCOUNTING            78         select HAVE_IRQ_TIME_ACCOUNTING
 49         select HAVE_PAGE_SIZE_4KB              !!  79         select HAVE_KPROBES
 50         select HAVE_PCI                        !!  80         select HAVE_KRETPROBES
                                                   >>  81         select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
                                                   >>  82         select HAVE_MOD_ARCH_SPECIFIC
                                                   >>  83         select HAVE_NMI
 51         select HAVE_PERF_EVENTS                    84         select HAVE_PERF_EVENTS
                                                   >>  85         select HAVE_PERF_REGS
                                                   >>  86         select HAVE_PERF_USER_STACK_DUMP
                                                   >>  87         select HAVE_REGS_AND_STACK_ACCESS_API
                                                   >>  88         select HAVE_RSEQ
                                                   >>  89         select HAVE_SPARSE_SYSCALL_NR
 52         select HAVE_STACKPROTECTOR                 90         select HAVE_STACKPROTECTOR
 53         select HAVE_SYSCALL_TRACEPOINTS            91         select HAVE_SYSCALL_TRACEPOINTS
 54         select HAVE_VIRT_CPU_ACCOUNTING_GEN    !!  92         select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
 55         select IRQ_DOMAIN                      !!  93         select IRQ_FORCED_THREADING
                                                   >>  94         select ISA if EISA
 56         select LOCK_MM_AND_FIND_VMA                95         select LOCK_MM_AND_FIND_VMA
 57         select MODULES_USE_ELF_RELA            !!  96         select MODULES_USE_ELF_REL if MODULES
                                                   >>  97         select MODULES_USE_ELF_RELA if MODULES && 64BIT
 58         select PERF_USE_VMALLOC                    98         select PERF_USE_VMALLOC
                                                   >>  99         select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
                                                   >> 100         select RTC_LIB
                                                   >> 101         select SYSCTL_EXCEPTION_TRACE
 59         select TRACE_IRQFLAGS_SUPPORT             102         select TRACE_IRQFLAGS_SUPPORT
                                                   >> 103         select ARCH_HAS_ELFCORE_COMPAT
                                                   >> 104         select HAVE_ARCH_KCSAN if 64BIT
                                                   >> 105 
                                                   >> 106 config MIPS_FIXUP_BIGPHYS_ADDR
                                                   >> 107         bool
                                                   >> 108 
                                                   >> 109 config MIPS_GENERIC
                                                   >> 110         bool
                                                   >> 111 
                                                   >> 112 config MACH_INGENIC
                                                   >> 113         bool
                                                   >> 114         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 115         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 116         select SYS_SUPPORTS_ZBOOT
                                                   >> 117         select DMA_NONCOHERENT
                                                   >> 118         select IRQ_MIPS_CPU
                                                   >> 119         select PINCTRL
                                                   >> 120         select GPIOLIB
                                                   >> 121         select COMMON_CLK
                                                   >> 122         select GENERIC_IRQ_CHIP
                                                   >> 123         select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
                                                   >> 124         select USE_OF
                                                   >> 125         select CPU_SUPPORTS_CPUFREQ
                                                   >> 126         select MIPS_EXTERNAL_TIMER
                                                   >> 127 
                                                   >> 128 menu "Machine selection"
                                                   >> 129 
                                                   >> 130 choice
                                                   >> 131         prompt "System type"
                                                   >> 132         default MIPS_GENERIC_KERNEL
                                                   >> 133 
                                                   >> 134 config MIPS_GENERIC_KERNEL
                                                   >> 135         bool "Generic board-agnostic MIPS kernel"
                                                   >> 136         select MIPS_GENERIC
                                                   >> 137         select BOOT_RAW
                                                   >> 138         select BUILTIN_DTB
                                                   >> 139         select CEVT_R4K
                                                   >> 140         select CLKSRC_MIPS_GIC
                                                   >> 141         select COMMON_CLK
                                                   >> 142         select CPU_MIPSR2_IRQ_EI
                                                   >> 143         select CPU_MIPSR2_IRQ_VI
                                                   >> 144         select CSRC_R4K
                                                   >> 145         select DMA_NONCOHERENT
                                                   >> 146         select HAVE_PCI
                                                   >> 147         select IRQ_MIPS_CPU
                                                   >> 148         select MIPS_AUTO_PFN_OFFSET
                                                   >> 149         select MIPS_CPU_SCACHE
                                                   >> 150         select MIPS_GIC
                                                   >> 151         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 152         select NO_EXCEPT_FILL
                                                   >> 153         select PCI_DRIVERS_GENERIC
                                                   >> 154         select SMP_UP if SMP
                                                   >> 155         select SWAP_IO_SPACE
                                                   >> 156         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 157         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 158         select SYS_HAS_CPU_MIPS32_R5
                                                   >> 159         select SYS_HAS_CPU_MIPS32_R6
                                                   >> 160         select SYS_HAS_CPU_MIPS64_R1
                                                   >> 161         select SYS_HAS_CPU_MIPS64_R2
                                                   >> 162         select SYS_HAS_CPU_MIPS64_R5
                                                   >> 163         select SYS_HAS_CPU_MIPS64_R6
                                                   >> 164         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 165         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 166         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 167         select SYS_SUPPORTS_HIGHMEM
                                                   >> 168         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 169         select SYS_SUPPORTS_MICROMIPS
                                                   >> 170         select SYS_SUPPORTS_MIPS16
                                                   >> 171         select SYS_SUPPORTS_MIPS_CPS
                                                   >> 172         select SYS_SUPPORTS_MULTITHREADING
                                                   >> 173         select SYS_SUPPORTS_RELOCATABLE
                                                   >> 174         select SYS_SUPPORTS_SMARTMIPS
                                                   >> 175         select SYS_SUPPORTS_ZBOOT
                                                   >> 176         select UHI_BOOT
                                                   >> 177         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
                                                   >> 178         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 179         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
                                                   >> 180         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 181         select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
                                                   >> 182         select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 183         select USE_OF
                                                   >> 184         help
                                                   >> 185           Select this to build a kernel which aims to support multiple boards,
                                                   >> 186           generally using a flattened device tree passed from the bootloader
                                                   >> 187           using the boot protocol defined in the UHI (Unified Hosting
                                                   >> 188           Interface) specification.
                                                   >> 189 
                                                   >> 190 config MIPS_ALCHEMY
                                                   >> 191         bool "Alchemy processor based machines"
                                                   >> 192         select PHYS_ADDR_T_64BIT
                                                   >> 193         select CEVT_R4K
                                                   >> 194         select CSRC_R4K
                                                   >> 195         select IRQ_MIPS_CPU
                                                   >> 196         select DMA_NONCOHERENT          # Au1000,1500,1100 aren't, rest is
                                                   >> 197         select MIPS_FIXUP_BIGPHYS_ADDR if PCI
                                                   >> 198         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 199         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 200         select SYS_SUPPORTS_APM_EMULATION
                                                   >> 201         select GPIOLIB
                                                   >> 202         select SYS_SUPPORTS_ZBOOT
                                                   >> 203         select COMMON_CLK
                                                   >> 204 
                                                   >> 205 config ATH25
                                                   >> 206         bool "Atheros AR231x/AR531x SoC support"
                                                   >> 207         select CEVT_R4K
                                                   >> 208         select CSRC_R4K
                                                   >> 209         select DMA_NONCOHERENT
                                                   >> 210         select IRQ_MIPS_CPU
                                                   >> 211         select IRQ_DOMAIN
                                                   >> 212         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 213         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 214         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 215         select SYS_HAS_EARLY_PRINTK
                                                   >> 216         help
                                                   >> 217           Support for Atheros AR231x and Atheros AR531x based boards
                                                   >> 218 
                                                   >> 219 config ATH79
                                                   >> 220         bool "Atheros AR71XX/AR724X/AR913X based boards"
                                                   >> 221         select ARCH_HAS_RESET_CONTROLLER
                                                   >> 222         select BOOT_RAW
                                                   >> 223         select CEVT_R4K
                                                   >> 224         select CSRC_R4K
                                                   >> 225         select DMA_NONCOHERENT
                                                   >> 226         select GPIOLIB
                                                   >> 227         select PINCTRL
                                                   >> 228         select COMMON_CLK
                                                   >> 229         select IRQ_MIPS_CPU
                                                   >> 230         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 231         select SYS_HAS_EARLY_PRINTK
                                                   >> 232         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 233         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 234         select SYS_SUPPORTS_MIPS16
                                                   >> 235         select SYS_SUPPORTS_ZBOOT_UART_PROM
                                                   >> 236         select USE_OF
                                                   >> 237         select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
                                                   >> 238         help
                                                   >> 239           Support for the Atheros AR71XX/AR724X/AR913X SoCs.
                                                   >> 240 
                                                   >> 241 config BMIPS_GENERIC
                                                   >> 242         bool "Broadcom Generic BMIPS kernel"
                                                   >> 243         select ARCH_HAS_RESET_CONTROLLER
                                                   >> 244         select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
                                                   >> 245         select BOOT_RAW
                                                   >> 246         select NO_EXCEPT_FILL
                                                   >> 247         select USE_OF
                                                   >> 248         select CEVT_R4K
                                                   >> 249         select CSRC_R4K
                                                   >> 250         select SYNC_R4K
                                                   >> 251         select COMMON_CLK
                                                   >> 252         select BCM6345_L1_IRQ
                                                   >> 253         select BCM7038_L1_IRQ
                                                   >> 254         select BCM7120_L2_IRQ
                                                   >> 255         select BRCMSTB_L2_IRQ
                                                   >> 256         select IRQ_MIPS_CPU
                                                   >> 257         select DMA_NONCOHERENT
                                                   >> 258         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 259         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 260         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 261         select SYS_SUPPORTS_HIGHMEM
                                                   >> 262         select SYS_HAS_CPU_BMIPS32_3300
                                                   >> 263         select SYS_HAS_CPU_BMIPS4350
                                                   >> 264         select SYS_HAS_CPU_BMIPS4380
                                                   >> 265         select SYS_HAS_CPU_BMIPS5000
                                                   >> 266         select SWAP_IO_SPACE
                                                   >> 267         select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
                                                   >> 268         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 269         select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
                                                   >> 270         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 271         select HARDIRQS_SW_RESEND
                                                   >> 272         select HAVE_PCI
                                                   >> 273         select PCI_DRIVERS_GENERIC
                                                   >> 274         select FW_CFE
 60         help                                      275         help
 61           Xtensa processors are 32-bit RISC ma !! 276           Build a generic DT-based kernel image that boots on select
 62           primarily for embedded systems.  The !! 277           BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
 63           configurable and extensible.  The Li !! 278           box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
 64           architecture supports all processor  !! 279           must be set appropriately for your board.
 65           with reasonable minimum requirements !! 280 
 66           a home page at <http://www.linux-xte !! 281 config BCM47XX
                                                   >> 282         bool "Broadcom BCM47XX based boards"
                                                   >> 283         select BOOT_RAW
                                                   >> 284         select CEVT_R4K
                                                   >> 285         select CSRC_R4K
                                                   >> 286         select DMA_NONCOHERENT
                                                   >> 287         select HAVE_PCI
                                                   >> 288         select IRQ_MIPS_CPU
                                                   >> 289         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 290         select NO_EXCEPT_FILL
                                                   >> 291         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 292         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 293         select SYS_SUPPORTS_MIPS16
                                                   >> 294         select SYS_SUPPORTS_ZBOOT
                                                   >> 295         select SYS_HAS_EARLY_PRINTK
                                                   >> 296         select USE_GENERIC_EARLY_PRINTK_8250
                                                   >> 297         select GPIOLIB
                                                   >> 298         select LEDS_GPIO_REGISTER
                                                   >> 299         select BCM47XX_NVRAM
                                                   >> 300         select BCM47XX_SPROM
                                                   >> 301         select BCM47XX_SSB if !BCM47XX_BCMA
                                                   >> 302         help
                                                   >> 303           Support for BCM47XX based boards
                                                   >> 304 
                                                   >> 305 config BCM63XX
                                                   >> 306         bool "Broadcom BCM63XX based boards"
                                                   >> 307         select BOOT_RAW
                                                   >> 308         select CEVT_R4K
                                                   >> 309         select CSRC_R4K
                                                   >> 310         select SYNC_R4K
                                                   >> 311         select DMA_NONCOHERENT
                                                   >> 312         select IRQ_MIPS_CPU
                                                   >> 313         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 314         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 315         select SYS_HAS_EARLY_PRINTK
                                                   >> 316         select SYS_HAS_CPU_BMIPS32_3300
                                                   >> 317         select SYS_HAS_CPU_BMIPS4350
                                                   >> 318         select SYS_HAS_CPU_BMIPS4380
                                                   >> 319         select SWAP_IO_SPACE
                                                   >> 320         select GPIOLIB
                                                   >> 321         select MIPS_L1_CACHE_SHIFT_4
                                                   >> 322         select HAVE_LEGACY_CLK
                                                   >> 323         help
                                                   >> 324           Support for BCM63XX based boards
                                                   >> 325 
                                                   >> 326 config MIPS_COBALT
                                                   >> 327         bool "Cobalt Server"
                                                   >> 328         select CEVT_R4K
                                                   >> 329         select CSRC_R4K
                                                   >> 330         select CEVT_GT641XX
                                                   >> 331         select DMA_NONCOHERENT
                                                   >> 332         select FORCE_PCI
                                                   >> 333         select I8253
                                                   >> 334         select I8259
                                                   >> 335         select IRQ_MIPS_CPU
                                                   >> 336         select IRQ_GT641XX
                                                   >> 337         select PCI_GT64XXX_PCI0
                                                   >> 338         select SYS_HAS_CPU_NEVADA
                                                   >> 339         select SYS_HAS_EARLY_PRINTK
                                                   >> 340         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 341         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 342         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 343         select USE_GENERIC_EARLY_PRINTK_8250
                                                   >> 344 
                                                   >> 345 config MACH_DECSTATION
                                                   >> 346         bool "DECstations"
                                                   >> 347         select BOOT_ELF32
                                                   >> 348         select CEVT_DS1287
                                                   >> 349         select CEVT_R4K if CPU_R4X00
                                                   >> 350         select CSRC_IOASIC
                                                   >> 351         select CSRC_R4K if CPU_R4X00
                                                   >> 352         select CPU_DADDI_WORKAROUNDS if 64BIT
                                                   >> 353         select CPU_R4000_WORKAROUNDS if 64BIT
                                                   >> 354         select CPU_R4400_WORKAROUNDS if 64BIT
                                                   >> 355         select DMA_NONCOHERENT
                                                   >> 356         select NO_IOPORT_MAP
                                                   >> 357         select IRQ_MIPS_CPU
                                                   >> 358         select SYS_HAS_CPU_R3000
                                                   >> 359         select SYS_HAS_CPU_R4X00
                                                   >> 360         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 361         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 362         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 363         select SYS_SUPPORTS_128HZ
                                                   >> 364         select SYS_SUPPORTS_256HZ
                                                   >> 365         select SYS_SUPPORTS_1024HZ
                                                   >> 366         select MIPS_L1_CACHE_SHIFT_4
                                                   >> 367         help
                                                   >> 368           This enables support for DEC's MIPS based workstations.  For details
                                                   >> 369           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
                                                   >> 370           DECstation porting pages on <http://decstation.unix-ag.org/>.
                                                   >> 371 
                                                   >> 372           If you have one of the following DECstation Models you definitely
                                                   >> 373           want to choose R4xx0 for the CPU Type:
                                                   >> 374 
                                                   >> 375                 DECstation 5000/50
                                                   >> 376                 DECstation 5000/150
                                                   >> 377                 DECstation 5000/260
                                                   >> 378                 DECsystem 5900/260
                                                   >> 379 
                                                   >> 380           otherwise choose R3000.
                                                   >> 381 
                                                   >> 382 config MACH_JAZZ
                                                   >> 383         bool "Jazz family of machines"
                                                   >> 384         select ARC_MEMORY
                                                   >> 385         select ARC_PROMLIB
                                                   >> 386         select ARCH_MIGHT_HAVE_PC_PARPORT
                                                   >> 387         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 388         select DMA_OPS
                                                   >> 389         select FW_ARC
                                                   >> 390         select FW_ARC32
                                                   >> 391         select ARCH_MAY_HAVE_PC_FDC
                                                   >> 392         select CEVT_R4K
                                                   >> 393         select CSRC_R4K
                                                   >> 394         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
                                                   >> 395         select GENERIC_ISA_DMA
                                                   >> 396         select HAVE_PCSPKR_PLATFORM
                                                   >> 397         select IRQ_MIPS_CPU
                                                   >> 398         select I8253
                                                   >> 399         select I8259
                                                   >> 400         select ISA
                                                   >> 401         select SYS_HAS_CPU_R4X00
                                                   >> 402         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 403         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 404         select SYS_SUPPORTS_100HZ
                                                   >> 405         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 406         help
                                                   >> 407           This a family of machines based on the MIPS R4030 chipset which was
                                                   >> 408           used by several vendors to build RISC/os and Windows NT workstations.
                                                   >> 409           Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
                                                   >> 410           Olivetti M700-10 workstations.
                                                   >> 411 
                                                   >> 412 config MACH_INGENIC_SOC
                                                   >> 413         bool "Ingenic SoC based machines"
                                                   >> 414         select MIPS_GENERIC
                                                   >> 415         select MACH_INGENIC
                                                   >> 416         select SYS_SUPPORTS_ZBOOT_UART16550
                                                   >> 417         select CPU_SUPPORTS_CPUFREQ
                                                   >> 418         select MIPS_EXTERNAL_TIMER
                                                   >> 419 
                                                   >> 420 config LANTIQ
                                                   >> 421         bool "Lantiq based platforms"
                                                   >> 422         select DMA_NONCOHERENT
                                                   >> 423         select IRQ_MIPS_CPU
                                                   >> 424         select CEVT_R4K
                                                   >> 425         select CSRC_R4K
                                                   >> 426         select NO_EXCEPT_FILL
                                                   >> 427         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 428         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 429         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 430         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 431         select SYS_SUPPORTS_MIPS16
                                                   >> 432         select SYS_SUPPORTS_MULTITHREADING
                                                   >> 433         select SYS_SUPPORTS_VPE_LOADER
                                                   >> 434         select SYS_HAS_EARLY_PRINTK
                                                   >> 435         select GPIOLIB
                                                   >> 436         select SWAP_IO_SPACE
                                                   >> 437         select BOOT_RAW
                                                   >> 438         select HAVE_LEGACY_CLK
                                                   >> 439         select USE_OF
                                                   >> 440         select PINCTRL
                                                   >> 441         select PINCTRL_LANTIQ
                                                   >> 442         select ARCH_HAS_RESET_CONTROLLER
                                                   >> 443         select RESET_CONTROLLER
                                                   >> 444 
                                                   >> 445 config MACH_LOONGSON32
                                                   >> 446         bool "Loongson 32-bit family of machines"
                                                   >> 447         select SYS_SUPPORTS_ZBOOT
                                                   >> 448         help
                                                   >> 449           This enables support for the Loongson-1 family of machines.
                                                   >> 450 
                                                   >> 451           Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
                                                   >> 452           the Institute of Computing Technology (ICT), Chinese Academy of
                                                   >> 453           Sciences (CAS).
                                                   >> 454 
                                                   >> 455 config MACH_LOONGSON2EF
                                                   >> 456         bool "Loongson-2E/F family of machines"
                                                   >> 457         select SYS_SUPPORTS_ZBOOT
                                                   >> 458         help
                                                   >> 459           This enables the support of early Loongson-2E/F family of machines.
                                                   >> 460 
                                                   >> 461 config MACH_LOONGSON64
                                                   >> 462         bool "Loongson 64-bit family of machines"
                                                   >> 463         select ARCH_DMA_DEFAULT_COHERENT
                                                   >> 464         select ARCH_SPARSEMEM_ENABLE
                                                   >> 465         select ARCH_MIGHT_HAVE_PC_PARPORT
                                                   >> 466         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 467         select GENERIC_ISA_DMA_SUPPORT_BROKEN
                                                   >> 468         select BOOT_ELF32
                                                   >> 469         select BOARD_SCACHE
                                                   >> 470         select CSRC_R4K
                                                   >> 471         select CEVT_R4K
                                                   >> 472         select FORCE_PCI
                                                   >> 473         select ISA
                                                   >> 474         select I8259
                                                   >> 475         select IRQ_MIPS_CPU
                                                   >> 476         select NO_EXCEPT_FILL
                                                   >> 477         select NR_CPUS_DEFAULT_64
                                                   >> 478         select USE_GENERIC_EARLY_PRINTK_8250
                                                   >> 479         select PCI_DRIVERS_GENERIC
                                                   >> 480         select SYS_HAS_CPU_LOONGSON64
                                                   >> 481         select SYS_HAS_EARLY_PRINTK
                                                   >> 482         select SYS_SUPPORTS_SMP
                                                   >> 483         select SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 484         select SYS_SUPPORTS_NUMA
                                                   >> 485         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 486         select SYS_SUPPORTS_HIGHMEM
                                                   >> 487         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 488         select SYS_SUPPORTS_ZBOOT
                                                   >> 489         select SYS_SUPPORTS_RELOCATABLE
                                                   >> 490         select ZONE_DMA32
                                                   >> 491         select COMMON_CLK
                                                   >> 492         select USE_OF
                                                   >> 493         select BUILTIN_DTB
                                                   >> 494         select PCI_HOST_GENERIC
                                                   >> 495         select HAVE_ARCH_NODEDATA_EXTENSION if NUMA
                                                   >> 496         help
                                                   >> 497           This enables the support of Loongson-2/3 family of machines.
                                                   >> 498 
                                                   >> 499           Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
                                                   >> 500           GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
                                                   >> 501           and Loongson-2F which will be removed), developed by the Institute
                                                   >> 502           of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
                                                   >> 503 
                                                   >> 504 config MIPS_MALTA
                                                   >> 505         bool "MIPS Malta board"
                                                   >> 506         select ARCH_MAY_HAVE_PC_FDC
                                                   >> 507         select ARCH_MIGHT_HAVE_PC_PARPORT
                                                   >> 508         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 509         select BOOT_ELF32
                                                   >> 510         select BOOT_RAW
                                                   >> 511         select BUILTIN_DTB
                                                   >> 512         select CEVT_R4K
                                                   >> 513         select CLKSRC_MIPS_GIC
                                                   >> 514         select COMMON_CLK
                                                   >> 515         select CSRC_R4K
                                                   >> 516         select DMA_NONCOHERENT
                                                   >> 517         select GENERIC_ISA_DMA
                                                   >> 518         select HAVE_PCSPKR_PLATFORM
                                                   >> 519         select HAVE_PCI
                                                   >> 520         select I8253
                                                   >> 521         select I8259
                                                   >> 522         select IRQ_MIPS_CPU
                                                   >> 523         select MIPS_BONITO64
                                                   >> 524         select MIPS_CPU_SCACHE
                                                   >> 525         select MIPS_GIC
                                                   >> 526         select MIPS_L1_CACHE_SHIFT_6
                                                   >> 527         select MIPS_MSC
                                                   >> 528         select PCI_GT64XXX_PCI0
                                                   >> 529         select SMP_UP if SMP
                                                   >> 530         select SWAP_IO_SPACE
                                                   >> 531         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 532         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 533         select SYS_HAS_CPU_MIPS32_R3_5
                                                   >> 534         select SYS_HAS_CPU_MIPS32_R5
                                                   >> 535         select SYS_HAS_CPU_MIPS32_R6
                                                   >> 536         select SYS_HAS_CPU_MIPS64_R1
                                                   >> 537         select SYS_HAS_CPU_MIPS64_R2
                                                   >> 538         select SYS_HAS_CPU_MIPS64_R6
                                                   >> 539         select SYS_HAS_CPU_NEVADA
                                                   >> 540         select SYS_HAS_CPU_RM7000
                                                   >> 541         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 542         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 543         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 544         select SYS_SUPPORTS_HIGHMEM
                                                   >> 545         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 546         select SYS_SUPPORTS_MICROMIPS
                                                   >> 547         select SYS_SUPPORTS_MIPS16
                                                   >> 548         select SYS_SUPPORTS_MIPS_CPS
                                                   >> 549         select SYS_SUPPORTS_MULTITHREADING
                                                   >> 550         select SYS_SUPPORTS_RELOCATABLE
                                                   >> 551         select SYS_SUPPORTS_SMARTMIPS
                                                   >> 552         select SYS_SUPPORTS_VPE_LOADER
                                                   >> 553         select SYS_SUPPORTS_ZBOOT
                                                   >> 554         select USE_OF
                                                   >> 555         select WAR_ICACHE_REFILLS
                                                   >> 556         select ZONE_DMA32 if 64BIT
                                                   >> 557         help
                                                   >> 558           This enables support for the MIPS Technologies Malta evaluation
                                                   >> 559           board.
                                                   >> 560 
                                                   >> 561 config MACH_PIC32
                                                   >> 562         bool "Microchip PIC32 Family"
                                                   >> 563         help
                                                   >> 564           This enables support for the Microchip PIC32 family of platforms.
                                                   >> 565 
                                                   >> 566           Microchip PIC32 is a family of general-purpose 32 bit MIPS core
                                                   >> 567           microcontrollers.
                                                   >> 568 
                                                   >> 569 config MACH_NINTENDO64
                                                   >> 570         bool "Nintendo 64 console"
                                                   >> 571         select CEVT_R4K
                                                   >> 572         select CSRC_R4K
                                                   >> 573         select SYS_HAS_CPU_R4300
                                                   >> 574         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 575         select SYS_SUPPORTS_ZBOOT
                                                   >> 576         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 577         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 578         select DMA_NONCOHERENT
                                                   >> 579         select IRQ_MIPS_CPU
                                                   >> 580 
                                                   >> 581 config RALINK
                                                   >> 582         bool "Ralink based machines"
                                                   >> 583         select CEVT_R4K
                                                   >> 584         select COMMON_CLK
                                                   >> 585         select CSRC_R4K
                                                   >> 586         select BOOT_RAW
                                                   >> 587         select DMA_NONCOHERENT
                                                   >> 588         select IRQ_MIPS_CPU
                                                   >> 589         select USE_OF
                                                   >> 590         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 591         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 592         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 593         select SYS_SUPPORTS_MIPS16
                                                   >> 594         select SYS_SUPPORTS_ZBOOT
                                                   >> 595         select SYS_HAS_EARLY_PRINTK
                                                   >> 596         select ARCH_HAS_RESET_CONTROLLER
                                                   >> 597         select RESET_CONTROLLER
                                                   >> 598 
                                                   >> 599 config MACH_REALTEK_RTL
                                                   >> 600         bool "Realtek RTL838x/RTL839x based machines"
                                                   >> 601         select MIPS_GENERIC
                                                   >> 602         select DMA_NONCOHERENT
                                                   >> 603         select IRQ_MIPS_CPU
                                                   >> 604         select CSRC_R4K
                                                   >> 605         select CEVT_R4K
                                                   >> 606         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 607         select SYS_HAS_CPU_MIPS32_R2
                                                   >> 608         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 609         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 610         select SYS_SUPPORTS_MIPS16
                                                   >> 611         select SYS_SUPPORTS_MULTITHREADING
                                                   >> 612         select SYS_SUPPORTS_VPE_LOADER
                                                   >> 613         select BOOT_RAW
                                                   >> 614         select PINCTRL
                                                   >> 615         select USE_OF
                                                   >> 616 
                                                   >> 617 config SGI_IP22
                                                   >> 618         bool "SGI IP22 (Indy/Indigo2)"
                                                   >> 619         select ARC_MEMORY
                                                   >> 620         select ARC_PROMLIB
                                                   >> 621         select FW_ARC
                                                   >> 622         select FW_ARC32
                                                   >> 623         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 624         select BOOT_ELF32
                                                   >> 625         select CEVT_R4K
                                                   >> 626         select CSRC_R4K
                                                   >> 627         select DEFAULT_SGI_PARTITION
                                                   >> 628         select DMA_NONCOHERENT
                                                   >> 629         select HAVE_EISA
                                                   >> 630         select I8253
                                                   >> 631         select I8259
                                                   >> 632         select IP22_CPU_SCACHE
                                                   >> 633         select IRQ_MIPS_CPU
                                                   >> 634         select GENERIC_ISA_DMA_SUPPORT_BROKEN
                                                   >> 635         select SGI_HAS_I8042
                                                   >> 636         select SGI_HAS_INDYDOG
                                                   >> 637         select SGI_HAS_HAL2
                                                   >> 638         select SGI_HAS_SEEQ
                                                   >> 639         select SGI_HAS_WD93
                                                   >> 640         select SGI_HAS_ZILOG
                                                   >> 641         select SWAP_IO_SPACE
                                                   >> 642         select SYS_HAS_CPU_R4X00
                                                   >> 643         select SYS_HAS_CPU_R5000
                                                   >> 644         select SYS_HAS_EARLY_PRINTK
                                                   >> 645         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 646         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 647         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 648         select WAR_R4600_V1_INDEX_ICACHEOP
                                                   >> 649         select WAR_R4600_V1_HIT_CACHEOP
                                                   >> 650         select WAR_R4600_V2_HIT_CACHEOP
                                                   >> 651         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 652         help
                                                   >> 653           This are the SGI Indy, Challenge S and Indigo2, as well as certain
                                                   >> 654           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
                                                   >> 655           that runs on these, say Y here.
                                                   >> 656 
                                                   >> 657 config SGI_IP27
                                                   >> 658         bool "SGI IP27 (Origin200/2000)"
                                                   >> 659         select ARCH_HAS_PHYS_TO_DMA
                                                   >> 660         select ARCH_SPARSEMEM_ENABLE
                                                   >> 661         select FW_ARC
                                                   >> 662         select FW_ARC64
                                                   >> 663         select ARC_CMDLINE_ONLY
                                                   >> 664         select BOOT_ELF64
                                                   >> 665         select DEFAULT_SGI_PARTITION
                                                   >> 666         select FORCE_PCI
                                                   >> 667         select SYS_HAS_EARLY_PRINTK
                                                   >> 668         select HAVE_PCI
                                                   >> 669         select IRQ_MIPS_CPU
                                                   >> 670         select IRQ_DOMAIN_HIERARCHY
                                                   >> 671         select NR_CPUS_DEFAULT_64
                                                   >> 672         select PCI_DRIVERS_GENERIC
                                                   >> 673         select PCI_XTALK_BRIDGE
                                                   >> 674         select SYS_HAS_CPU_R10000
                                                   >> 675         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 676         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 677         select SYS_SUPPORTS_NUMA
                                                   >> 678         select SYS_SUPPORTS_SMP
                                                   >> 679         select WAR_R10000_LLSC
                                                   >> 680         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 681         select NUMA
                                                   >> 682         select HAVE_ARCH_NODEDATA_EXTENSION
                                                   >> 683         help
                                                   >> 684           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
                                                   >> 685           workstations.  To compile a Linux kernel that runs on these, say Y
                                                   >> 686           here.
                                                   >> 687 
                                                   >> 688 config SGI_IP28
                                                   >> 689         bool "SGI IP28 (Indigo2 R10k)"
                                                   >> 690         select ARC_MEMORY
                                                   >> 691         select ARC_PROMLIB
                                                   >> 692         select FW_ARC
                                                   >> 693         select FW_ARC64
                                                   >> 694         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 695         select BOOT_ELF64
                                                   >> 696         select CEVT_R4K
                                                   >> 697         select CSRC_R4K
                                                   >> 698         select DEFAULT_SGI_PARTITION
                                                   >> 699         select DMA_NONCOHERENT
                                                   >> 700         select GENERIC_ISA_DMA_SUPPORT_BROKEN
                                                   >> 701         select IRQ_MIPS_CPU
                                                   >> 702         select HAVE_EISA
                                                   >> 703         select I8253
                                                   >> 704         select I8259
                                                   >> 705         select SGI_HAS_I8042
                                                   >> 706         select SGI_HAS_INDYDOG
                                                   >> 707         select SGI_HAS_HAL2
                                                   >> 708         select SGI_HAS_SEEQ
                                                   >> 709         select SGI_HAS_WD93
                                                   >> 710         select SGI_HAS_ZILOG
                                                   >> 711         select SWAP_IO_SPACE
                                                   >> 712         select SYS_HAS_CPU_R10000
                                                   >> 713         select SYS_HAS_EARLY_PRINTK
                                                   >> 714         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 715         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 716         select WAR_R10000_LLSC
                                                   >> 717         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 718         help
                                                   >> 719           This is the SGI Indigo2 with R10000 processor.  To compile a Linux
                                                   >> 720           kernel that runs on these, say Y here.
                                                   >> 721 
                                                   >> 722 config SGI_IP30
                                                   >> 723         bool "SGI IP30 (Octane/Octane2)"
                                                   >> 724         select ARCH_HAS_PHYS_TO_DMA
                                                   >> 725         select FW_ARC
                                                   >> 726         select FW_ARC64
                                                   >> 727         select BOOT_ELF64
                                                   >> 728         select CEVT_R4K
                                                   >> 729         select CSRC_R4K
                                                   >> 730         select FORCE_PCI
                                                   >> 731         select SYNC_R4K if SMP
                                                   >> 732         select ZONE_DMA32
                                                   >> 733         select HAVE_PCI
                                                   >> 734         select IRQ_MIPS_CPU
                                                   >> 735         select IRQ_DOMAIN_HIERARCHY
                                                   >> 736         select PCI_DRIVERS_GENERIC
                                                   >> 737         select PCI_XTALK_BRIDGE
                                                   >> 738         select SYS_HAS_EARLY_PRINTK
                                                   >> 739         select SYS_HAS_CPU_R10000
                                                   >> 740         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 741         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 742         select SYS_SUPPORTS_SMP
                                                   >> 743         select WAR_R10000_LLSC
                                                   >> 744         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 745         select ARC_MEMORY
                                                   >> 746         help
                                                   >> 747           These are the SGI Octane and Octane2 graphics workstations.  To
                                                   >> 748           compile a Linux kernel that runs on these, say Y here.
                                                   >> 749 
                                                   >> 750 config SGI_IP32
                                                   >> 751         bool "SGI IP32 (O2)"
                                                   >> 752         select ARC_MEMORY
                                                   >> 753         select ARC_PROMLIB
                                                   >> 754         select ARCH_HAS_PHYS_TO_DMA
                                                   >> 755         select FW_ARC
                                                   >> 756         select FW_ARC32
                                                   >> 757         select BOOT_ELF32
                                                   >> 758         select CEVT_R4K
                                                   >> 759         select CSRC_R4K
                                                   >> 760         select DMA_NONCOHERENT
                                                   >> 761         select HAVE_PCI
                                                   >> 762         select IRQ_MIPS_CPU
                                                   >> 763         select R5000_CPU_SCACHE
                                                   >> 764         select RM7000_CPU_SCACHE
                                                   >> 765         select SYS_HAS_CPU_R5000
                                                   >> 766         select SYS_HAS_CPU_R10000 if BROKEN
                                                   >> 767         select SYS_HAS_CPU_RM7000
                                                   >> 768         select SYS_HAS_CPU_NEVADA
                                                   >> 769         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 770         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 771         select WAR_ICACHE_REFILLS
                                                   >> 772         help
                                                   >> 773           If you want this kernel to run on SGI O2 workstation, say Y here.
                                                   >> 774 
                                                   >> 775 config SIBYTE_CRHONE
                                                   >> 776         bool "Sibyte BCM91125C-CRhone"
                                                   >> 777         select BOOT_ELF32
                                                   >> 778         select SIBYTE_BCM1125
                                                   >> 779         select SWAP_IO_SPACE
                                                   >> 780         select SYS_HAS_CPU_SB1
                                                   >> 781         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 782         select SYS_SUPPORTS_HIGHMEM
                                                   >> 783         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 784 
                                                   >> 785 config SIBYTE_RHONE
                                                   >> 786         bool "Sibyte BCM91125E-Rhone"
                                                   >> 787         select BOOT_ELF32
                                                   >> 788         select SIBYTE_SB1250
                                                   >> 789         select SWAP_IO_SPACE
                                                   >> 790         select SYS_HAS_CPU_SB1
                                                   >> 791         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 792         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 793 
                                                   >> 794 config SIBYTE_SWARM
                                                   >> 795         bool "Sibyte BCM91250A-SWARM"
                                                   >> 796         select BOOT_ELF32
                                                   >> 797         select HAVE_PATA_PLATFORM
                                                   >> 798         select SIBYTE_SB1250
                                                   >> 799         select SWAP_IO_SPACE
                                                   >> 800         select SYS_HAS_CPU_SB1
                                                   >> 801         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 802         select SYS_SUPPORTS_HIGHMEM
                                                   >> 803         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 804         select ZONE_DMA32 if 64BIT
                                                   >> 805         select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
                                                   >> 806 
                                                   >> 807 config SIBYTE_LITTLESUR
                                                   >> 808         bool "Sibyte BCM91250C2-LittleSur"
                                                   >> 809         select BOOT_ELF32
                                                   >> 810         select HAVE_PATA_PLATFORM
                                                   >> 811         select SIBYTE_SB1250
                                                   >> 812         select SWAP_IO_SPACE
                                                   >> 813         select SYS_HAS_CPU_SB1
                                                   >> 814         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 815         select SYS_SUPPORTS_HIGHMEM
                                                   >> 816         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 817         select ZONE_DMA32 if 64BIT
                                                   >> 818 
                                                   >> 819 config SIBYTE_SENTOSA
                                                   >> 820         bool "Sibyte BCM91250E-Sentosa"
                                                   >> 821         select BOOT_ELF32
                                                   >> 822         select SIBYTE_SB1250
                                                   >> 823         select SWAP_IO_SPACE
                                                   >> 824         select SYS_HAS_CPU_SB1
                                                   >> 825         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 826         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 827         select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
                                                   >> 828 
                                                   >> 829 config SIBYTE_BIGSUR
                                                   >> 830         bool "Sibyte BCM91480B-BigSur"
                                                   >> 831         select BOOT_ELF32
                                                   >> 832         select NR_CPUS_DEFAULT_4
                                                   >> 833         select SIBYTE_BCM1x80
                                                   >> 834         select SWAP_IO_SPACE
                                                   >> 835         select SYS_HAS_CPU_SB1
                                                   >> 836         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 837         select SYS_SUPPORTS_HIGHMEM
                                                   >> 838         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 839         select ZONE_DMA32 if 64BIT
                                                   >> 840         select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
                                                   >> 841 
                                                   >> 842 config SNI_RM
                                                   >> 843         bool "SNI RM200/300/400"
                                                   >> 844         select ARC_MEMORY
                                                   >> 845         select ARC_PROMLIB
                                                   >> 846         select FW_ARC if CPU_LITTLE_ENDIAN
                                                   >> 847         select FW_ARC32 if CPU_LITTLE_ENDIAN
                                                   >> 848         select FW_SNIPROM if CPU_BIG_ENDIAN
                                                   >> 849         select ARCH_MAY_HAVE_PC_FDC
                                                   >> 850         select ARCH_MIGHT_HAVE_PC_PARPORT
                                                   >> 851         select ARCH_MIGHT_HAVE_PC_SERIO
                                                   >> 852         select BOOT_ELF32
                                                   >> 853         select CEVT_R4K
                                                   >> 854         select CSRC_R4K
                                                   >> 855         select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
                                                   >> 856         select DMA_NONCOHERENT
                                                   >> 857         select GENERIC_ISA_DMA
                                                   >> 858         select HAVE_EISA
                                                   >> 859         select HAVE_PCSPKR_PLATFORM
                                                   >> 860         select HAVE_PCI
                                                   >> 861         select IRQ_MIPS_CPU
                                                   >> 862         select I8253
                                                   >> 863         select I8259
                                                   >> 864         select ISA
                                                   >> 865         select MIPS_L1_CACHE_SHIFT_6
                                                   >> 866         select SWAP_IO_SPACE if CPU_BIG_ENDIAN
                                                   >> 867         select SYS_HAS_CPU_R4X00
                                                   >> 868         select SYS_HAS_CPU_R5000
                                                   >> 869         select SYS_HAS_CPU_R10000
                                                   >> 870         select R5000_CPU_SCACHE
                                                   >> 871         select SYS_HAS_EARLY_PRINTK
                                                   >> 872         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 873         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 874         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 875         select SYS_SUPPORTS_HIGHMEM
                                                   >> 876         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 877         select WAR_R4600_V2_HIT_CACHEOP
                                                   >> 878         help
                                                   >> 879           The SNI RM200/300/400 are MIPS-based machines manufactured by
                                                   >> 880           Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
                                                   >> 881           Technology and now in turn merged with Fujitsu.  Say Y here to
                                                   >> 882           support this machine type.
                                                   >> 883 
                                                   >> 884 config MACH_TX49XX
                                                   >> 885         bool "Toshiba TX49 series based machines"
                                                   >> 886         select WAR_TX49XX_ICACHE_INDEX_INV
                                                   >> 887 
                                                   >> 888 config MIKROTIK_RB532
                                                   >> 889         bool "Mikrotik RB532 boards"
                                                   >> 890         select CEVT_R4K
                                                   >> 891         select CSRC_R4K
                                                   >> 892         select DMA_NONCOHERENT
                                                   >> 893         select HAVE_PCI
                                                   >> 894         select IRQ_MIPS_CPU
                                                   >> 895         select SYS_HAS_CPU_MIPS32_R1
                                                   >> 896         select SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 897         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 898         select SWAP_IO_SPACE
                                                   >> 899         select BOOT_RAW
                                                   >> 900         select GPIOLIB
                                                   >> 901         select MIPS_L1_CACHE_SHIFT_4
                                                   >> 902         help
                                                   >> 903           Support the Mikrotik(tm) RouterBoard 532 series,
                                                   >> 904           based on the IDT RC32434 SoC.
                                                   >> 905 
                                                   >> 906 config CAVIUM_OCTEON_SOC
                                                   >> 907         bool "Cavium Networks Octeon SoC based boards"
                                                   >> 908         select CEVT_R4K
                                                   >> 909         select ARCH_HAS_PHYS_TO_DMA
                                                   >> 910         select HAVE_RAPIDIO
                                                   >> 911         select PHYS_ADDR_T_64BIT
                                                   >> 912         select SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 913         select SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 914         select EDAC_SUPPORT
                                                   >> 915         select EDAC_ATOMIC_SCRUB
                                                   >> 916         select SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 917         select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
                                                   >> 918         select SYS_HAS_EARLY_PRINTK
                                                   >> 919         select SYS_HAS_CPU_CAVIUM_OCTEON
                                                   >> 920         select HAVE_PCI
                                                   >> 921         select HAVE_PLAT_DELAY
                                                   >> 922         select HAVE_PLAT_FW_INIT_CMDLINE
                                                   >> 923         select HAVE_PLAT_MEMCPY
                                                   >> 924         select ZONE_DMA32
                                                   >> 925         select GPIOLIB
                                                   >> 926         select USE_OF
                                                   >> 927         select ARCH_SPARSEMEM_ENABLE
                                                   >> 928         select SYS_SUPPORTS_SMP
                                                   >> 929         select NR_CPUS_DEFAULT_64
                                                   >> 930         select MIPS_NR_CPU_NR_MAP_1024
                                                   >> 931         select BUILTIN_DTB
                                                   >> 932         select MTD
                                                   >> 933         select MTD_COMPLEX_MAPPINGS
                                                   >> 934         select SWIOTLB
                                                   >> 935         select SYS_SUPPORTS_RELOCATABLE
                                                   >> 936         help
                                                   >> 937           This option supports all of the Octeon reference boards from Cavium
                                                   >> 938           Networks. It builds a kernel that dynamically determines the Octeon
                                                   >> 939           CPU type and supports all known board reference implementations.
                                                   >> 940           Some of the supported boards are:
                                                   >> 941                 EBT3000
                                                   >> 942                 EBH3000
                                                   >> 943                 EBH3100
                                                   >> 944                 Thunder
                                                   >> 945                 Kodama
                                                   >> 946                 Hikari
                                                   >> 947           Say Y here for most Octeon reference boards.
                                                   >> 948 
                                                   >> 949 endchoice
                                                   >> 950 
                                                   >> 951 source "arch/mips/alchemy/Kconfig"
                                                   >> 952 source "arch/mips/ath25/Kconfig"
                                                   >> 953 source "arch/mips/ath79/Kconfig"
                                                   >> 954 source "arch/mips/bcm47xx/Kconfig"
                                                   >> 955 source "arch/mips/bcm63xx/Kconfig"
                                                   >> 956 source "arch/mips/bmips/Kconfig"
                                                   >> 957 source "arch/mips/generic/Kconfig"
                                                   >> 958 source "arch/mips/ingenic/Kconfig"
                                                   >> 959 source "arch/mips/jazz/Kconfig"
                                                   >> 960 source "arch/mips/lantiq/Kconfig"
                                                   >> 961 source "arch/mips/pic32/Kconfig"
                                                   >> 962 source "arch/mips/ralink/Kconfig"
                                                   >> 963 source "arch/mips/sgi-ip27/Kconfig"
                                                   >> 964 source "arch/mips/sibyte/Kconfig"
                                                   >> 965 source "arch/mips/txx9/Kconfig"
                                                   >> 966 source "arch/mips/cavium-octeon/Kconfig"
                                                   >> 967 source "arch/mips/loongson2ef/Kconfig"
                                                   >> 968 source "arch/mips/loongson32/Kconfig"
                                                   >> 969 source "arch/mips/loongson64/Kconfig"
                                                   >> 970 
                                                   >> 971 endmenu
 67                                                   972 
 68 config GENERIC_HWEIGHT                            973 config GENERIC_HWEIGHT
 69         def_bool y                             !! 974         bool
                                                   >> 975         default y
 70                                                   976 
 71 config ARCH_HAS_ILOG2_U32                      !! 977 config GENERIC_CALIBRATE_DELAY
 72         def_bool n                             !! 978         bool
                                                   >> 979         default y
 73                                                   980 
 74 config ARCH_HAS_ILOG2_U64                      !! 981 config SCHED_OMIT_FRAME_POINTER
 75         def_bool n                             !! 982         bool
                                                   >> 983         default y
                                                   >> 984 
                                                   >> 985 #
                                                   >> 986 # Select some configuration options automatically based on user selections.
                                                   >> 987 #
                                                   >> 988 config FW_ARC
                                                   >> 989         bool
                                                   >> 990 
                                                   >> 991 config ARCH_MAY_HAVE_PC_FDC
                                                   >> 992         bool
                                                   >> 993 
                                                   >> 994 config BOOT_RAW
                                                   >> 995         bool
                                                   >> 996 
                                                   >> 997 config CEVT_BCM1480
                                                   >> 998         bool
                                                   >> 999 
                                                   >> 1000 config CEVT_DS1287
                                                   >> 1001         bool
                                                   >> 1002 
                                                   >> 1003 config CEVT_GT641XX
                                                   >> 1004         bool
                                                   >> 1005 
                                                   >> 1006 config CEVT_R4K
                                                   >> 1007         bool
                                                   >> 1008 
                                                   >> 1009 config CEVT_SB1250
                                                   >> 1010         bool
                                                   >> 1011 
                                                   >> 1012 config CEVT_TXX9
                                                   >> 1013         bool
                                                   >> 1014 
                                                   >> 1015 config CSRC_BCM1480
                                                   >> 1016         bool
                                                   >> 1017 
                                                   >> 1018 config CSRC_IOASIC
                                                   >> 1019         bool
                                                   >> 1020 
                                                   >> 1021 config CSRC_R4K
                                                   >> 1022         select CLOCKSOURCE_WATCHDOG if CPU_FREQ
                                                   >> 1023         bool
 76                                                   1024 
 77 config ARCH_MTD_XIP                            !! 1025 config CSRC_SB1250
                                                   >> 1026         bool
                                                   >> 1027 
                                                   >> 1028 config MIPS_CLOCK_VSYSCALL
                                                   >> 1029         def_bool CSRC_R4K || CLKSRC_MIPS_GIC
                                                   >> 1030 
                                                   >> 1031 config GPIO_TXX9
                                                   >> 1032         select GPIOLIB
                                                   >> 1033         bool
                                                   >> 1034 
                                                   >> 1035 config FW_CFE
                                                   >> 1036         bool
                                                   >> 1037 
                                                   >> 1038 config ARCH_SUPPORTS_UPROBES
 78         def_bool y                                1039         def_bool y
 79                                                   1040 
                                                   >> 1041 config DMA_NONCOHERENT
                                                   >> 1042         bool
                                                   >> 1043         #
                                                   >> 1044         # MIPS allows mixing "slightly different" Cacheability and Coherency
                                                   >> 1045         # Attribute bits.  It is believed that the uncached access through
                                                   >> 1046         # KSEG1 and the implementation specific "uncached accelerated" used
                                                   >> 1047         # by pgprot_writcombine can be mixed, and the latter sometimes provides
                                                   >> 1048         # significant advantages.
                                                   >> 1049         #
                                                   >> 1050         select ARCH_HAS_SETUP_DMA_OPS
                                                   >> 1051         select ARCH_HAS_DMA_WRITE_COMBINE
                                                   >> 1052         select ARCH_HAS_DMA_PREP_COHERENT
                                                   >> 1053         select ARCH_HAS_SYNC_DMA_FOR_CPU
                                                   >> 1054         select ARCH_HAS_SYNC_DMA_FOR_DEVICE
                                                   >> 1055         select ARCH_HAS_DMA_SET_UNCACHED
                                                   >> 1056         select DMA_NONCOHERENT_MMAP
                                                   >> 1057         select NEED_DMA_MAP_STATE
                                                   >> 1058 
                                                   >> 1059 config SYS_HAS_EARLY_PRINTK
                                                   >> 1060         bool
                                                   >> 1061 
                                                   >> 1062 config SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 1063         bool
                                                   >> 1064 
                                                   >> 1065 config MIPS_BONITO64
                                                   >> 1066         bool
                                                   >> 1067 
                                                   >> 1068 config MIPS_MSC
                                                   >> 1069         bool
                                                   >> 1070 
                                                   >> 1071 config SYNC_R4K
                                                   >> 1072         bool
                                                   >> 1073 
 80 config NO_IOPORT_MAP                              1074 config NO_IOPORT_MAP
 81         def_bool n                                1075         def_bool n
 82                                                   1076 
 83 config HZ                                      !! 1077 config GENERIC_CSUM
 84         int                                    !! 1078         def_bool CPU_NO_LOAD_STORE_LR
 85         default 100                            << 
 86                                                   1079 
 87 config LOCKDEP_SUPPORT                         !! 1080 config GENERIC_ISA_DMA
 88         def_bool y                             !! 1081         bool
                                                   >> 1082         select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
                                                   >> 1083         select ISA_DMA_API
 89                                                   1084 
 90 config STACKTRACE_SUPPORT                      !! 1085 config GENERIC_ISA_DMA_SUPPORT_BROKEN
 91         def_bool y                             !! 1086         bool
                                                   >> 1087         select GENERIC_ISA_DMA
 92                                                   1088 
 93 config MMU                                     !! 1089 config HAVE_PLAT_DELAY
 94         def_bool n                             !! 1090         bool
 95         select PFAULT                          << 
 96                                                   1091 
 97 config HAVE_XTENSA_GPIO32                      !! 1092 config HAVE_PLAT_FW_INIT_CMDLINE
 98         def_bool n                             !! 1093         bool
 99                                                   1094 
100 config KASAN_SHADOW_OFFSET                     !! 1095 config HAVE_PLAT_MEMCPY
101         hex                                    !! 1096         bool
102         default 0x6e400000                     !! 1097 
                                                   >> 1098 config ISA_DMA_API
                                                   >> 1099         bool
                                                   >> 1100 
                                                   >> 1101 config SYS_SUPPORTS_RELOCATABLE
                                                   >> 1102         bool
                                                   >> 1103         help
                                                   >> 1104           Selected if the platform supports relocating the kernel.
                                                   >> 1105           The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
                                                   >> 1106           to allow access to command line and entropy sources.
                                                   >> 1107 
                                                   >> 1108 #
                                                   >> 1109 # Endianness selection.  Sufficiently obscure so many users don't know what to
                                                   >> 1110 # answer,so we try hard to limit the available choices.  Also the use of a
                                                   >> 1111 # choice statement should be more obvious to the user.
                                                   >> 1112 #
                                                   >> 1113 choice
                                                   >> 1114         prompt "Endianness selection"
                                                   >> 1115         help
                                                   >> 1116           Some MIPS machines can be configured for either little or big endian
                                                   >> 1117           byte order. These modes require different kernels and a different
                                                   >> 1118           Linux distribution.  In general there is one preferred byteorder for a
                                                   >> 1119           particular system but some systems are just as commonly used in the
                                                   >> 1120           one or the other endianness.
103                                                   1121 
104 config CPU_BIG_ENDIAN                             1122 config CPU_BIG_ENDIAN
105         def_bool $(success,test "$(shell,echo  !! 1123         bool "Big endian"
                                                   >> 1124         depends on SYS_SUPPORTS_BIG_ENDIAN
106                                                   1125 
107 config CPU_LITTLE_ENDIAN                          1126 config CPU_LITTLE_ENDIAN
108         def_bool !CPU_BIG_ENDIAN               !! 1127         bool "Little endian"
                                                   >> 1128         depends on SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 1129 
                                                   >> 1130 endchoice
                                                   >> 1131 
                                                   >> 1132 config EXPORT_UASM
                                                   >> 1133         bool
                                                   >> 1134 
                                                   >> 1135 config SYS_SUPPORTS_APM_EMULATION
                                                   >> 1136         bool
                                                   >> 1137 
                                                   >> 1138 config SYS_SUPPORTS_BIG_ENDIAN
                                                   >> 1139         bool
                                                   >> 1140 
                                                   >> 1141 config SYS_SUPPORTS_LITTLE_ENDIAN
                                                   >> 1142         bool
                                                   >> 1143 
                                                   >> 1144 config MIPS_HUGE_TLB_SUPPORT
                                                   >> 1145         def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
                                                   >> 1146 
                                                   >> 1147 config IRQ_TXX9
                                                   >> 1148         bool
                                                   >> 1149 
                                                   >> 1150 config IRQ_GT641XX
                                                   >> 1151         bool
109                                                   1152 
110 config CC_HAVE_CALL0_ABI                       !! 1153 config PCI_GT64XXX_PCI0
111         def_bool $(success,test "$(shell,echo  !! 1154         bool
112                                                   1155 
113 menu "Processor type and features"             !! 1156 config PCI_XTALK_BRIDGE
                                                   >> 1157         bool
                                                   >> 1158 
                                                   >> 1159 config NO_EXCEPT_FILL
                                                   >> 1160         bool
                                                   >> 1161 
                                                   >> 1162 config MIPS_SPRAM
                                                   >> 1163         bool
                                                   >> 1164 
                                                   >> 1165 config SWAP_IO_SPACE
                                                   >> 1166         bool
                                                   >> 1167 
                                                   >> 1168 config SGI_HAS_INDYDOG
                                                   >> 1169         bool
                                                   >> 1170 
                                                   >> 1171 config SGI_HAS_HAL2
                                                   >> 1172         bool
                                                   >> 1173 
                                                   >> 1174 config SGI_HAS_SEEQ
                                                   >> 1175         bool
                                                   >> 1176 
                                                   >> 1177 config SGI_HAS_WD93
                                                   >> 1178         bool
                                                   >> 1179 
                                                   >> 1180 config SGI_HAS_ZILOG
                                                   >> 1181         bool
                                                   >> 1182 
                                                   >> 1183 config SGI_HAS_I8042
                                                   >> 1184         bool
                                                   >> 1185 
                                                   >> 1186 config DEFAULT_SGI_PARTITION
                                                   >> 1187         bool
                                                   >> 1188 
                                                   >> 1189 config FW_ARC32
                                                   >> 1190         bool
                                                   >> 1191 
                                                   >> 1192 config FW_SNIPROM
                                                   >> 1193         bool
                                                   >> 1194 
                                                   >> 1195 config BOOT_ELF32
                                                   >> 1196         bool
                                                   >> 1197 
                                                   >> 1198 config MIPS_L1_CACHE_SHIFT_4
                                                   >> 1199         bool
                                                   >> 1200 
                                                   >> 1201 config MIPS_L1_CACHE_SHIFT_5
                                                   >> 1202         bool
                                                   >> 1203 
                                                   >> 1204 config MIPS_L1_CACHE_SHIFT_6
                                                   >> 1205         bool
                                                   >> 1206 
                                                   >> 1207 config MIPS_L1_CACHE_SHIFT_7
                                                   >> 1208         bool
                                                   >> 1209 
                                                   >> 1210 config MIPS_L1_CACHE_SHIFT
                                                   >> 1211         int
                                                   >> 1212         default "7" if MIPS_L1_CACHE_SHIFT_7
                                                   >> 1213         default "6" if MIPS_L1_CACHE_SHIFT_6
                                                   >> 1214         default "5" if MIPS_L1_CACHE_SHIFT_5
                                                   >> 1215         default "4" if MIPS_L1_CACHE_SHIFT_4
                                                   >> 1216         default "5"
                                                   >> 1217 
                                                   >> 1218 config ARC_CMDLINE_ONLY
                                                   >> 1219         bool
                                                   >> 1220 
                                                   >> 1221 config ARC_CONSOLE
                                                   >> 1222         bool "ARC console support"
                                                   >> 1223         depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
                                                   >> 1224 
                                                   >> 1225 config ARC_MEMORY
                                                   >> 1226         bool
                                                   >> 1227 
                                                   >> 1228 config ARC_PROMLIB
                                                   >> 1229         bool
                                                   >> 1230 
                                                   >> 1231 config FW_ARC64
                                                   >> 1232         bool
                                                   >> 1233 
                                                   >> 1234 config BOOT_ELF64
                                                   >> 1235         bool
                                                   >> 1236 
                                                   >> 1237 menu "CPU selection"
114                                                   1238 
115 choice                                            1239 choice
116         prompt "Xtensa Processor Configuration !! 1240         prompt "CPU type"
117         default XTENSA_VARIANT_FSF             !! 1241         default CPU_R4X00
118                                                   1242 
119 config XTENSA_VARIANT_FSF                      !! 1243 config CPU_LOONGSON64
120         bool "fsf - default (not generic) conf !! 1244         bool "Loongson 64-bit CPU"
121         select MMU                             !! 1245         depends on SYS_HAS_CPU_LOONGSON64
                                                   >> 1246         select ARCH_HAS_PHYS_TO_DMA
                                                   >> 1247         select CPU_MIPSR2
                                                   >> 1248         select CPU_HAS_PREFETCH
                                                   >> 1249         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1250         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1251         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1252         select CPU_SUPPORTS_MSA
                                                   >> 1253         select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
                                                   >> 1254         select CPU_MIPSR2_IRQ_VI
                                                   >> 1255         select DMA_NONCOHERENT
                                                   >> 1256         select WEAK_ORDERING
                                                   >> 1257         select WEAK_REORDERING_BEYOND_LLSC
                                                   >> 1258         select MIPS_ASID_BITS_VARIABLE
                                                   >> 1259         select MIPS_PGD_C0_CONTEXT
                                                   >> 1260         select MIPS_L1_CACHE_SHIFT_6
                                                   >> 1261         select MIPS_FP_SUPPORT
                                                   >> 1262         select GPIOLIB
                                                   >> 1263         select SWIOTLB
                                                   >> 1264         select HAVE_KVM
                                                   >> 1265         help
                                                   >> 1266           The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
                                                   >> 1267           cores implements the MIPS64R2 instruction set with many extensions,
                                                   >> 1268           including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
                                                   >> 1269           3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
                                                   >> 1270           Loongson-2E/2F is not covered here and will be removed in future.
122                                                   1271 
123 config XTENSA_VARIANT_DC232B                   !! 1272 config LOONGSON3_ENHANCEMENT
124         bool "dc232b - Diamond 232L Standard C !! 1273         bool "New Loongson-3 CPU Enhancements"
125         select MMU                             !! 1274         default n
126         select HAVE_XTENSA_GPIO32              !! 1275         depends on CPU_LOONGSON64
127         help                                      1276         help
128           This variant refers to Tensilica's D !! 1277           New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
129                                                !! 1278           R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
130 config XTENSA_VARIANT_DC233C                   !! 1279           FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
131         bool "dc233c - Diamond 233L Standard C !! 1280           Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
132         select MMU                             !! 1281           Fast TLB refill support, etc.
133         select HAVE_XTENSA_GPIO32              !! 1282 
                                                   >> 1283           This option enable those enhancements which are not probed at run
                                                   >> 1284           time. If you want a generic kernel to run on all Loongson 3 machines,
                                                   >> 1285           please say 'N' here. If you want a high-performance kernel to run on
                                                   >> 1286           new Loongson-3 machines only, please say 'Y' here.
                                                   >> 1287 
                                                   >> 1288 config CPU_LOONGSON3_WORKAROUNDS
                                                   >> 1289         bool "Loongson-3 LLSC Workarounds"
                                                   >> 1290         default y if SMP
                                                   >> 1291         depends on CPU_LOONGSON64
134         help                                      1292         help
135           This variant refers to Tensilica's D !! 1293           Loongson-3 processors have the llsc issues which require workarounds.
                                                   >> 1294           Without workarounds the system may hang unexpectedly.
                                                   >> 1295 
                                                   >> 1296           Say Y, unless you know what you are doing.
136                                                   1297 
137 config XTENSA_VARIANT_CUSTOM                   !! 1298 config CPU_LOONGSON3_CPUCFG_EMULATION
138         bool "Custom Xtensa processor configur !! 1299         bool "Emulate the CPUCFG instruction on older Loongson cores"
139         select HAVE_XTENSA_GPIO32              !! 1300         default y
                                                   >> 1301         depends on CPU_LOONGSON64
                                                   >> 1302         help
                                                   >> 1303           Loongson-3A R4 and newer have the CPUCFG instruction available for
                                                   >> 1304           userland to query CPU capabilities, much like CPUID on x86. This
                                                   >> 1305           option provides emulation of the instruction on older Loongson
                                                   >> 1306           cores, back to Loongson-3A1000.
                                                   >> 1307 
                                                   >> 1308           If unsure, please say Y.
                                                   >> 1309 
                                                   >> 1310 config CPU_LOONGSON2E
                                                   >> 1311         bool "Loongson 2E"
                                                   >> 1312         depends on SYS_HAS_CPU_LOONGSON2E
                                                   >> 1313         select CPU_LOONGSON2EF
                                                   >> 1314         help
                                                   >> 1315           The Loongson 2E processor implements the MIPS III instruction set
                                                   >> 1316           with many extensions.
                                                   >> 1317 
                                                   >> 1318           It has an internal FPGA northbridge, which is compatible to
                                                   >> 1319           bonito64.
                                                   >> 1320 
                                                   >> 1321 config CPU_LOONGSON2F
                                                   >> 1322         bool "Loongson 2F"
                                                   >> 1323         depends on SYS_HAS_CPU_LOONGSON2F
                                                   >> 1324         select CPU_LOONGSON2EF
                                                   >> 1325         help
                                                   >> 1326           The Loongson 2F processor implements the MIPS III instruction set
                                                   >> 1327           with many extensions.
                                                   >> 1328 
                                                   >> 1329           Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
                                                   >> 1330           have a similar programming interface with FPGA northbridge used in
                                                   >> 1331           Loongson2E.
                                                   >> 1332 
                                                   >> 1333 config CPU_LOONGSON1B
                                                   >> 1334         bool "Loongson 1B"
                                                   >> 1335         depends on SYS_HAS_CPU_LOONGSON1B
                                                   >> 1336         select CPU_LOONGSON32
                                                   >> 1337         select LEDS_GPIO_REGISTER
                                                   >> 1338         help
                                                   >> 1339           The Loongson 1B is a 32-bit SoC, which implements the MIPS32
                                                   >> 1340           Release 1 instruction set and part of the MIPS32 Release 2
                                                   >> 1341           instruction set.
                                                   >> 1342 
                                                   >> 1343 config CPU_LOONGSON1C
                                                   >> 1344         bool "Loongson 1C"
                                                   >> 1345         depends on SYS_HAS_CPU_LOONGSON1C
                                                   >> 1346         select CPU_LOONGSON32
                                                   >> 1347         select LEDS_GPIO_REGISTER
                                                   >> 1348         help
                                                   >> 1349           The Loongson 1C is a 32-bit SoC, which implements the MIPS32
                                                   >> 1350           Release 1 instruction set and part of the MIPS32 Release 2
                                                   >> 1351           instruction set.
                                                   >> 1352 
                                                   >> 1353 config CPU_MIPS32_R1
                                                   >> 1354         bool "MIPS32 Release 1"
                                                   >> 1355         depends on SYS_HAS_CPU_MIPS32_R1
                                                   >> 1356         select CPU_HAS_PREFETCH
                                                   >> 1357         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1358         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1359         help
                                                   >> 1360           Choose this option to build a kernel for release 1 or later of the
                                                   >> 1361           MIPS32 architecture.  Most modern embedded systems with a 32-bit
                                                   >> 1362           MIPS processor are based on a MIPS32 processor.  If you know the
                                                   >> 1363           specific type of processor in your system, choose those that one
                                                   >> 1364           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
                                                   >> 1365           Release 2 of the MIPS32 architecture is available since several
                                                   >> 1366           years so chances are you even have a MIPS32 Release 2 processor
                                                   >> 1367           in which case you should choose CPU_MIPS32_R2 instead for better
                                                   >> 1368           performance.
                                                   >> 1369 
                                                   >> 1370 config CPU_MIPS32_R2
                                                   >> 1371         bool "MIPS32 Release 2"
                                                   >> 1372         depends on SYS_HAS_CPU_MIPS32_R2
                                                   >> 1373         select CPU_HAS_PREFETCH
                                                   >> 1374         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1375         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1376         select CPU_SUPPORTS_MSA
                                                   >> 1377         select HAVE_KVM
                                                   >> 1378         help
                                                   >> 1379           Choose this option to build a kernel for release 2 or later of the
                                                   >> 1380           MIPS32 architecture.  Most modern embedded systems with a 32-bit
                                                   >> 1381           MIPS processor are based on a MIPS32 processor.  If you know the
                                                   >> 1382           specific type of processor in your system, choose those that one
                                                   >> 1383           otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
                                                   >> 1384 
                                                   >> 1385 config CPU_MIPS32_R5
                                                   >> 1386         bool "MIPS32 Release 5"
                                                   >> 1387         depends on SYS_HAS_CPU_MIPS32_R5
                                                   >> 1388         select CPU_HAS_PREFETCH
                                                   >> 1389         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1390         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1391         select CPU_SUPPORTS_MSA
                                                   >> 1392         select HAVE_KVM
                                                   >> 1393         select MIPS_O32_FP64_SUPPORT
                                                   >> 1394         help
                                                   >> 1395           Choose this option to build a kernel for release 5 or later of the
                                                   >> 1396           MIPS32 architecture.  New MIPS processors, starting with the Warrior
                                                   >> 1397           family, are based on a MIPS32r5 processor. If you own an older
                                                   >> 1398           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
                                                   >> 1399 
                                                   >> 1400 config CPU_MIPS32_R6
                                                   >> 1401         bool "MIPS32 Release 6"
                                                   >> 1402         depends on SYS_HAS_CPU_MIPS32_R6
                                                   >> 1403         select CPU_HAS_PREFETCH
                                                   >> 1404         select CPU_NO_LOAD_STORE_LR
                                                   >> 1405         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1406         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1407         select CPU_SUPPORTS_MSA
                                                   >> 1408         select HAVE_KVM
                                                   >> 1409         select MIPS_O32_FP64_SUPPORT
                                                   >> 1410         help
                                                   >> 1411           Choose this option to build a kernel for release 6 or later of the
                                                   >> 1412           MIPS32 architecture.  New MIPS processors, starting with the Warrior
                                                   >> 1413           family, are based on a MIPS32r6 processor. If you own an older
                                                   >> 1414           processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
                                                   >> 1415 
                                                   >> 1416 config CPU_MIPS64_R1
                                                   >> 1417         bool "MIPS64 Release 1"
                                                   >> 1418         depends on SYS_HAS_CPU_MIPS64_R1
                                                   >> 1419         select CPU_HAS_PREFETCH
                                                   >> 1420         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1421         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1422         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1423         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1424         help
                                                   >> 1425           Choose this option to build a kernel for release 1 or later of the
                                                   >> 1426           MIPS64 architecture.  Many modern embedded systems with a 64-bit
                                                   >> 1427           MIPS processor are based on a MIPS64 processor.  If you know the
                                                   >> 1428           specific type of processor in your system, choose those that one
                                                   >> 1429           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
                                                   >> 1430           Release 2 of the MIPS64 architecture is available since several
                                                   >> 1431           years so chances are you even have a MIPS64 Release 2 processor
                                                   >> 1432           in which case you should choose CPU_MIPS64_R2 instead for better
                                                   >> 1433           performance.
                                                   >> 1434 
                                                   >> 1435 config CPU_MIPS64_R2
                                                   >> 1436         bool "MIPS64 Release 2"
                                                   >> 1437         depends on SYS_HAS_CPU_MIPS64_R2
                                                   >> 1438         select CPU_HAS_PREFETCH
                                                   >> 1439         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1440         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1441         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1442         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1443         select CPU_SUPPORTS_MSA
                                                   >> 1444         select HAVE_KVM
                                                   >> 1445         help
                                                   >> 1446           Choose this option to build a kernel for release 2 or later of the
                                                   >> 1447           MIPS64 architecture.  Many modern embedded systems with a 64-bit
                                                   >> 1448           MIPS processor are based on a MIPS64 processor.  If you know the
                                                   >> 1449           specific type of processor in your system, choose those that one
                                                   >> 1450           otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
                                                   >> 1451 
                                                   >> 1452 config CPU_MIPS64_R5
                                                   >> 1453         bool "MIPS64 Release 5"
                                                   >> 1454         depends on SYS_HAS_CPU_MIPS64_R5
                                                   >> 1455         select CPU_HAS_PREFETCH
                                                   >> 1456         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1457         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1458         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1459         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1460         select CPU_SUPPORTS_MSA
                                                   >> 1461         select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
                                                   >> 1462         select HAVE_KVM
                                                   >> 1463         help
                                                   >> 1464           Choose this option to build a kernel for release 5 or later of the
                                                   >> 1465           MIPS64 architecture.  This is a intermediate MIPS architecture
                                                   >> 1466           release partly implementing release 6 features. Though there is no
                                                   >> 1467           any hardware known to be based on this release.
                                                   >> 1468 
                                                   >> 1469 config CPU_MIPS64_R6
                                                   >> 1470         bool "MIPS64 Release 6"
                                                   >> 1471         depends on SYS_HAS_CPU_MIPS64_R6
                                                   >> 1472         select CPU_HAS_PREFETCH
                                                   >> 1473         select CPU_NO_LOAD_STORE_LR
                                                   >> 1474         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1475         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1476         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1477         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1478         select CPU_SUPPORTS_MSA
                                                   >> 1479         select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
                                                   >> 1480         select HAVE_KVM
                                                   >> 1481         help
                                                   >> 1482           Choose this option to build a kernel for release 6 or later of the
                                                   >> 1483           MIPS64 architecture.  New MIPS processors, starting with the Warrior
                                                   >> 1484           family, are based on a MIPS64r6 processor. If you own an older
                                                   >> 1485           processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
                                                   >> 1486 
                                                   >> 1487 config CPU_P5600
                                                   >> 1488         bool "MIPS Warrior P5600"
                                                   >> 1489         depends on SYS_HAS_CPU_P5600
                                                   >> 1490         select CPU_HAS_PREFETCH
                                                   >> 1491         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1492         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1493         select CPU_SUPPORTS_MSA
                                                   >> 1494         select CPU_SUPPORTS_CPUFREQ
                                                   >> 1495         select CPU_MIPSR2_IRQ_VI
                                                   >> 1496         select CPU_MIPSR2_IRQ_EI
                                                   >> 1497         select HAVE_KVM
                                                   >> 1498         select MIPS_O32_FP64_SUPPORT
                                                   >> 1499         help
                                                   >> 1500           Choose this option to build a kernel for MIPS Warrior P5600 CPU.
                                                   >> 1501           It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
                                                   >> 1502           MMU with two-levels TLB, UCA, MSA, MDU core level features and system
                                                   >> 1503           level features like up to six P5600 calculation cores, CM2 with L2
                                                   >> 1504           cache, IOCU/IOMMU (though might be unused depending on the system-
                                                   >> 1505           specific IP core configuration), GIC, CPC, virtualisation module,
                                                   >> 1506           eJTAG and PDtrace.
                                                   >> 1507 
                                                   >> 1508 config CPU_R3000
                                                   >> 1509         bool "R3000"
                                                   >> 1510         depends on SYS_HAS_CPU_R3000
                                                   >> 1511         select CPU_HAS_WB
                                                   >> 1512         select CPU_R3K_TLB
                                                   >> 1513         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1514         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1515         help
                                                   >> 1516           Please make sure to pick the right CPU type. Linux/MIPS is not
                                                   >> 1517           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
                                                   >> 1518           *not* work on R4000 machines and vice versa.  However, since most
                                                   >> 1519           of the supported machines have an R4000 (or similar) CPU, R4x00
                                                   >> 1520           might be a safe bet.  If the resulting kernel does not work,
                                                   >> 1521           try to recompile with R3000.
                                                   >> 1522 
                                                   >> 1523 config CPU_R4300
                                                   >> 1524         bool "R4300"
                                                   >> 1525         depends on SYS_HAS_CPU_R4300
                                                   >> 1526         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1527         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1528         help
                                                   >> 1529           MIPS Technologies R4300-series processors.
                                                   >> 1530 
                                                   >> 1531 config CPU_R4X00
                                                   >> 1532         bool "R4x00"
                                                   >> 1533         depends on SYS_HAS_CPU_R4X00
                                                   >> 1534         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1535         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1536         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1537         help
                                                   >> 1538           MIPS Technologies R4000-series processors other than 4300, including
                                                   >> 1539           the R4000, R4400, R4600, and 4700.
                                                   >> 1540 
                                                   >> 1541 config CPU_TX49XX
                                                   >> 1542         bool "R49XX"
                                                   >> 1543         depends on SYS_HAS_CPU_TX49XX
                                                   >> 1544         select CPU_HAS_PREFETCH
                                                   >> 1545         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1546         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1547         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1548 
                                                   >> 1549 config CPU_R5000
                                                   >> 1550         bool "R5000"
                                                   >> 1551         depends on SYS_HAS_CPU_R5000
                                                   >> 1552         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1553         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1554         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1555         help
                                                   >> 1556           MIPS Technologies R5000-series processors other than the Nevada.
                                                   >> 1557 
                                                   >> 1558 config CPU_R5500
                                                   >> 1559         bool "R5500"
                                                   >> 1560         depends on SYS_HAS_CPU_R5500
                                                   >> 1561         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1562         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1563         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1564         help
                                                   >> 1565           NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
                                                   >> 1566           instruction set.
                                                   >> 1567 
                                                   >> 1568 config CPU_NEVADA
                                                   >> 1569         bool "RM52xx"
                                                   >> 1570         depends on SYS_HAS_CPU_NEVADA
                                                   >> 1571         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1572         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1573         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1574         help
                                                   >> 1575           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
                                                   >> 1576 
                                                   >> 1577 config CPU_R10000
                                                   >> 1578         bool "R10000"
                                                   >> 1579         depends on SYS_HAS_CPU_R10000
                                                   >> 1580         select CPU_HAS_PREFETCH
                                                   >> 1581         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1582         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1583         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1584         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1585         help
                                                   >> 1586           MIPS Technologies R10000-series processors.
                                                   >> 1587 
                                                   >> 1588 config CPU_RM7000
                                                   >> 1589         bool "RM7000"
                                                   >> 1590         depends on SYS_HAS_CPU_RM7000
                                                   >> 1591         select CPU_HAS_PREFETCH
                                                   >> 1592         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1593         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1594         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1595         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1596 
                                                   >> 1597 config CPU_SB1
                                                   >> 1598         bool "SB1"
                                                   >> 1599         depends on SYS_HAS_CPU_SB1
                                                   >> 1600         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1601         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1602         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1603         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1604         select WEAK_ORDERING
                                                   >> 1605 
                                                   >> 1606 config CPU_CAVIUM_OCTEON
                                                   >> 1607         bool "Cavium Octeon processor"
                                                   >> 1608         depends on SYS_HAS_CPU_CAVIUM_OCTEON
                                                   >> 1609         select CPU_HAS_PREFETCH
                                                   >> 1610         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1611         select WEAK_ORDERING
                                                   >> 1612         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1613         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1614         select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 1615         select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
                                                   >> 1616         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 1617         select HAVE_KVM
                                                   >> 1618         help
                                                   >> 1619           The Cavium Octeon processor is a highly integrated chip containing
                                                   >> 1620           many ethernet hardware widgets for networking tasks. The processor
                                                   >> 1621           can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
                                                   >> 1622           Full details can be found at http://www.caviumnetworks.com.
                                                   >> 1623 
                                                   >> 1624 config CPU_BMIPS
                                                   >> 1625         bool "Broadcom BMIPS"
                                                   >> 1626         depends on SYS_HAS_CPU_BMIPS
                                                   >> 1627         select CPU_MIPS32
                                                   >> 1628         select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
                                                   >> 1629         select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
                                                   >> 1630         select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
                                                   >> 1631         select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
                                                   >> 1632         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1633         select DMA_NONCOHERENT
                                                   >> 1634         select IRQ_MIPS_CPU
                                                   >> 1635         select SWAP_IO_SPACE
                                                   >> 1636         select WEAK_ORDERING
                                                   >> 1637         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1638         select CPU_HAS_PREFETCH
                                                   >> 1639         select CPU_SUPPORTS_CPUFREQ
                                                   >> 1640         select MIPS_EXTERNAL_TIMER
                                                   >> 1641         select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
140         help                                      1642         help
141           Select this variant to use a custom  !! 1643           Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
142           You will be prompted for a processor !! 1644 
143 endchoice                                         1645 endchoice
144                                                   1646 
145 config XTENSA_VARIANT_CUSTOM_NAME              !! 1647 config CPU_MIPS32_3_5_FEATURES
146         string "Xtensa Processor Custom Core V !! 1648         bool "MIPS32 Release 3.5 Features"
147         depends on XTENSA_VARIANT_CUSTOM       !! 1649         depends on SYS_HAS_CPU_MIPS32_R3_5
148         help                                   !! 1650         depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
149           Provide the name of a custom Xtensa  !! 1651                    CPU_P5600
150           This CORENAME selects arch/xtensa/va !! 1652         help
151           Don't forget you have to select MMU  !! 1653           Choose this option to build a kernel for release 2 or later of the
152                                                !! 1654           MIPS32 architecture including features from the 3.5 release such as
153 config XTENSA_VARIANT_NAME                     !! 1655           support for Enhanced Virtual Addressing (EVA).
154         string                                 !! 1656 
155         default "dc232b"                       !! 1657 config CPU_MIPS32_3_5_EVA
156         default "dc233c"                       !! 1658         bool "Enhanced Virtual Addressing (EVA)"
157         default "fsf"                          !! 1659         depends on CPU_MIPS32_3_5_FEATURES
158         default XTENSA_VARIANT_CUSTOM_NAME     !! 1660         select EVA
159                                                !! 1661         default y
160 config XTENSA_VARIANT_MMU                      !! 1662         help
161         bool "Core variant has a Full MMU (TLB !! 1663           Choose this option if you want to enable the Enhanced Virtual
162         depends on XTENSA_VARIANT_CUSTOM       !! 1664           Addressing (EVA) on your MIPS32 core (such as proAptiv).
163         default y                              !! 1665           One of its primary benefits is an increase in the maximum size
164         select MMU                             !! 1666           of lowmem (up to 3GB). If unsure, say 'N' here.
165         help                                   !! 1667 
166           Build a Conventional Kernel with ful !! 1668 config CPU_MIPS32_R5_FEATURES
167           ie: it supports a TLB with auto-load !! 1669         bool "MIPS32 Release 5 Features"
168                                                !! 1670         depends on SYS_HAS_CPU_MIPS32_R5
169 config XTENSA_VARIANT_HAVE_PERF_EVENTS         !! 1671         depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
170         bool "Core variant has Performance Mon !! 1672         help
171         depends on XTENSA_VARIANT_CUSTOM       !! 1673           Choose this option to build a kernel for release 2 or later of the
                                                   >> 1674           MIPS32 architecture including features from release 5 such as
                                                   >> 1675           support for Extended Physical Addressing (XPA).
                                                   >> 1676 
                                                   >> 1677 config CPU_MIPS32_R5_XPA
                                                   >> 1678         bool "Extended Physical Addressing (XPA)"
                                                   >> 1679         depends on CPU_MIPS32_R5_FEATURES
                                                   >> 1680         depends on !EVA
                                                   >> 1681         depends on !PAGE_SIZE_4KB
                                                   >> 1682         depends on SYS_SUPPORTS_HIGHMEM
                                                   >> 1683         select XPA
                                                   >> 1684         select HIGHMEM
                                                   >> 1685         select PHYS_ADDR_T_64BIT
172         default n                                 1686         default n
173         help                                      1687         help
174           Enable if core variant has Performan !! 1688           Choose this option if you want to enable the Extended Physical
175           External Registers Interface.        !! 1689           Addressing (XPA) on your MIPS32 core (such as P5600 series). The
                                                   >> 1690           benefit is to increase physical addressing equal to or greater
                                                   >> 1691           than 40 bits. Note that this has the side effect of turning on
                                                   >> 1692           64-bit addressing which in turn makes the PTEs 64-bit in size.
                                                   >> 1693           If unsure, say 'N' here.
176                                                   1694 
177           If unsure, say N.                    !! 1695 if CPU_LOONGSON2F
                                                   >> 1696 config CPU_NOP_WORKAROUNDS
                                                   >> 1697         bool
178                                                   1698 
179 config XTENSA_FAKE_NMI                         !! 1699 config CPU_JUMP_WORKAROUNDS
180         bool "Treat PMM IRQ as NMI"            !! 1700         bool
181         depends on XTENSA_VARIANT_HAVE_PERF_EV !! 1701 
182         default n                              !! 1702 config CPU_LOONGSON2F_WORKAROUNDS
                                                   >> 1703         bool "Loongson 2F Workarounds"
                                                   >> 1704         default y
                                                   >> 1705         select CPU_NOP_WORKAROUNDS
                                                   >> 1706         select CPU_JUMP_WORKAROUNDS
183         help                                      1707         help
184           If PMM IRQ is the only IRQ at EXCM l !! 1708           Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
185           treat it as NMI, which improves accu !! 1709           require workarounds.  Without workarounds the system may hang
                                                   >> 1710           unexpectedly.  For more information please refer to the gas
                                                   >> 1711           -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
                                                   >> 1712 
                                                   >> 1713           Loongson 2F03 and later have fixed these issues and no workarounds
                                                   >> 1714           are needed.  The workarounds have no significant side effect on them
                                                   >> 1715           but may decrease the performance of the system so this option should
                                                   >> 1716           be disabled unless the kernel is intended to be run on 2F01 or 2F02
                                                   >> 1717           systems.
186                                                   1718 
187           If there are other interrupts at or  !! 1719           If unsure, please say Y.
188           but not above the EXCM level, PMM IR !! 1720 endif # CPU_LOONGSON2F
189           but only if these IRQs are not used. << 
190           saying that this is not safe, and a  << 
191           actually fire.                       << 
192                                                   1721 
193           If unsure, say N.                    !! 1722 config SYS_SUPPORTS_ZBOOT
                                                   >> 1723         bool
                                                   >> 1724         select HAVE_KERNEL_GZIP
                                                   >> 1725         select HAVE_KERNEL_BZIP2
                                                   >> 1726         select HAVE_KERNEL_LZ4
                                                   >> 1727         select HAVE_KERNEL_LZMA
                                                   >> 1728         select HAVE_KERNEL_LZO
                                                   >> 1729         select HAVE_KERNEL_XZ
                                                   >> 1730         select HAVE_KERNEL_ZSTD
194                                                   1731 
195 config PFAULT                                  !! 1732 config SYS_SUPPORTS_ZBOOT_UART16550
196         bool "Handle protection faults" if EXP !! 1733         bool
197         default y                              !! 1734         select SYS_SUPPORTS_ZBOOT
                                                   >> 1735 
                                                   >> 1736 config SYS_SUPPORTS_ZBOOT_UART_PROM
                                                   >> 1737         bool
                                                   >> 1738         select SYS_SUPPORTS_ZBOOT
                                                   >> 1739 
                                                   >> 1740 config CPU_LOONGSON2EF
                                                   >> 1741         bool
                                                   >> 1742         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1743         select CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1744         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1745         select CPU_SUPPORTS_HUGEPAGES
                                                   >> 1746 
                                                   >> 1747 config CPU_LOONGSON32
                                                   >> 1748         bool
                                                   >> 1749         select CPU_MIPS32
                                                   >> 1750         select CPU_MIPSR2
                                                   >> 1751         select CPU_HAS_PREFETCH
                                                   >> 1752         select CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1753         select CPU_SUPPORTS_HIGHMEM
                                                   >> 1754         select CPU_SUPPORTS_CPUFREQ
                                                   >> 1755 
                                                   >> 1756 config CPU_BMIPS32_3300
                                                   >> 1757         select SMP_UP if SMP
                                                   >> 1758         bool
                                                   >> 1759 
                                                   >> 1760 config CPU_BMIPS4350
                                                   >> 1761         bool
                                                   >> 1762         select SYS_SUPPORTS_SMP
                                                   >> 1763         select SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 1764 
                                                   >> 1765 config CPU_BMIPS4380
                                                   >> 1766         bool
                                                   >> 1767         select MIPS_L1_CACHE_SHIFT_6
                                                   >> 1768         select SYS_SUPPORTS_SMP
                                                   >> 1769         select SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 1770         select CPU_HAS_RIXI
                                                   >> 1771 
                                                   >> 1772 config CPU_BMIPS5000
                                                   >> 1773         bool
                                                   >> 1774         select MIPS_CPU_SCACHE
                                                   >> 1775         select MIPS_L1_CACHE_SHIFT_7
                                                   >> 1776         select SYS_SUPPORTS_SMP
                                                   >> 1777         select SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 1778         select CPU_HAS_RIXI
                                                   >> 1779 
                                                   >> 1780 config SYS_HAS_CPU_LOONGSON64
                                                   >> 1781         bool
                                                   >> 1782         select CPU_SUPPORTS_CPUFREQ
                                                   >> 1783         select CPU_HAS_RIXI
                                                   >> 1784 
                                                   >> 1785 config SYS_HAS_CPU_LOONGSON2E
                                                   >> 1786         bool
                                                   >> 1787 
                                                   >> 1788 config SYS_HAS_CPU_LOONGSON2F
                                                   >> 1789         bool
                                                   >> 1790         select CPU_SUPPORTS_CPUFREQ
                                                   >> 1791         select CPU_SUPPORTS_ADDRWINCFG if 64BIT
                                                   >> 1792 
                                                   >> 1793 config SYS_HAS_CPU_LOONGSON1B
                                                   >> 1794         bool
                                                   >> 1795 
                                                   >> 1796 config SYS_HAS_CPU_LOONGSON1C
                                                   >> 1797         bool
                                                   >> 1798 
                                                   >> 1799 config SYS_HAS_CPU_MIPS32_R1
                                                   >> 1800         bool
                                                   >> 1801 
                                                   >> 1802 config SYS_HAS_CPU_MIPS32_R2
                                                   >> 1803         bool
                                                   >> 1804 
                                                   >> 1805 config SYS_HAS_CPU_MIPS32_R3_5
                                                   >> 1806         bool
                                                   >> 1807 
                                                   >> 1808 config SYS_HAS_CPU_MIPS32_R5
                                                   >> 1809         bool
                                                   >> 1810 
                                                   >> 1811 config SYS_HAS_CPU_MIPS32_R6
                                                   >> 1812         bool
                                                   >> 1813 
                                                   >> 1814 config SYS_HAS_CPU_MIPS64_R1
                                                   >> 1815         bool
                                                   >> 1816 
                                                   >> 1817 config SYS_HAS_CPU_MIPS64_R2
                                                   >> 1818         bool
                                                   >> 1819 
                                                   >> 1820 config SYS_HAS_CPU_MIPS64_R5
                                                   >> 1821         bool
                                                   >> 1822 
                                                   >> 1823 config SYS_HAS_CPU_MIPS64_R6
                                                   >> 1824         bool
                                                   >> 1825 
                                                   >> 1826 config SYS_HAS_CPU_P5600
                                                   >> 1827         bool
                                                   >> 1828 
                                                   >> 1829 config SYS_HAS_CPU_R3000
                                                   >> 1830         bool
                                                   >> 1831 
                                                   >> 1832 config SYS_HAS_CPU_R4300
                                                   >> 1833         bool
                                                   >> 1834 
                                                   >> 1835 config SYS_HAS_CPU_R4X00
                                                   >> 1836         bool
                                                   >> 1837 
                                                   >> 1838 config SYS_HAS_CPU_TX49XX
                                                   >> 1839         bool
                                                   >> 1840 
                                                   >> 1841 config SYS_HAS_CPU_R5000
                                                   >> 1842         bool
                                                   >> 1843 
                                                   >> 1844 config SYS_HAS_CPU_R5500
                                                   >> 1845         bool
                                                   >> 1846 
                                                   >> 1847 config SYS_HAS_CPU_NEVADA
                                                   >> 1848         bool
                                                   >> 1849 
                                                   >> 1850 config SYS_HAS_CPU_R10000
                                                   >> 1851         bool
                                                   >> 1852 
                                                   >> 1853 config SYS_HAS_CPU_RM7000
                                                   >> 1854         bool
                                                   >> 1855 
                                                   >> 1856 config SYS_HAS_CPU_SB1
                                                   >> 1857         bool
                                                   >> 1858 
                                                   >> 1859 config SYS_HAS_CPU_CAVIUM_OCTEON
                                                   >> 1860         bool
                                                   >> 1861 
                                                   >> 1862 config SYS_HAS_CPU_BMIPS
                                                   >> 1863         bool
                                                   >> 1864 
                                                   >> 1865 config SYS_HAS_CPU_BMIPS32_3300
                                                   >> 1866         bool
                                                   >> 1867         select SYS_HAS_CPU_BMIPS
                                                   >> 1868 
                                                   >> 1869 config SYS_HAS_CPU_BMIPS4350
                                                   >> 1870         bool
                                                   >> 1871         select SYS_HAS_CPU_BMIPS
                                                   >> 1872 
                                                   >> 1873 config SYS_HAS_CPU_BMIPS4380
                                                   >> 1874         bool
                                                   >> 1875         select SYS_HAS_CPU_BMIPS
                                                   >> 1876 
                                                   >> 1877 config SYS_HAS_CPU_BMIPS5000
                                                   >> 1878         bool
                                                   >> 1879         select SYS_HAS_CPU_BMIPS
                                                   >> 1880 
                                                   >> 1881 #
                                                   >> 1882 # CPU may reorder R->R, R->W, W->R, W->W
                                                   >> 1883 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
                                                   >> 1884 #
                                                   >> 1885 config WEAK_ORDERING
                                                   >> 1886         bool
                                                   >> 1887 
                                                   >> 1888 #
                                                   >> 1889 # CPU may reorder reads and writes beyond LL/SC
                                                   >> 1890 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
                                                   >> 1891 #
                                                   >> 1892 config WEAK_REORDERING_BEYOND_LLSC
                                                   >> 1893         bool
                                                   >> 1894 endmenu
                                                   >> 1895 
                                                   >> 1896 #
                                                   >> 1897 # These two indicate any level of the MIPS32 and MIPS64 architecture
                                                   >> 1898 #
                                                   >> 1899 config CPU_MIPS32
                                                   >> 1900         bool
                                                   >> 1901         default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
                                                   >> 1902                      CPU_MIPS32_R6 || CPU_P5600
                                                   >> 1903 
                                                   >> 1904 config CPU_MIPS64
                                                   >> 1905         bool
                                                   >> 1906         default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
                                                   >> 1907                      CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
                                                   >> 1908 
                                                   >> 1909 #
                                                   >> 1910 # These indicate the revision of the architecture
                                                   >> 1911 #
                                                   >> 1912 config CPU_MIPSR1
                                                   >> 1913         bool
                                                   >> 1914         default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
                                                   >> 1915 
                                                   >> 1916 config CPU_MIPSR2
                                                   >> 1917         bool
                                                   >> 1918         default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
                                                   >> 1919         select CPU_HAS_RIXI
                                                   >> 1920         select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
                                                   >> 1921         select MIPS_SPRAM
                                                   >> 1922 
                                                   >> 1923 config CPU_MIPSR5
                                                   >> 1924         bool
                                                   >> 1925         default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
                                                   >> 1926         select CPU_HAS_RIXI
                                                   >> 1927         select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
                                                   >> 1928         select MIPS_SPRAM
                                                   >> 1929 
                                                   >> 1930 config CPU_MIPSR6
                                                   >> 1931         bool
                                                   >> 1932         default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
                                                   >> 1933         select CPU_HAS_RIXI
                                                   >> 1934         select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
                                                   >> 1935         select HAVE_ARCH_BITREVERSE
                                                   >> 1936         select MIPS_ASID_BITS_VARIABLE
                                                   >> 1937         select MIPS_CRC_SUPPORT
                                                   >> 1938         select MIPS_SPRAM
                                                   >> 1939 
                                                   >> 1940 config TARGET_ISA_REV
                                                   >> 1941         int
                                                   >> 1942         default 1 if CPU_MIPSR1
                                                   >> 1943         default 2 if CPU_MIPSR2
                                                   >> 1944         default 5 if CPU_MIPSR5
                                                   >> 1945         default 6 if CPU_MIPSR6
                                                   >> 1946         default 0
198         help                                      1947         help
199           Handle protection faults. MMU config !! 1948           Reflects the ISA revision being targeted by the kernel build. This
200           noMMU configurations may disable it  !! 1949           is effectively the Kconfig equivalent of MIPS_ISA_REV.
201           generates protection faults or fault << 
202                                                   1950 
203           If unsure, say Y.                    !! 1951 config EVA
                                                   >> 1952         bool
                                                   >> 1953 
                                                   >> 1954 config XPA
                                                   >> 1955         bool
                                                   >> 1956 
                                                   >> 1957 config SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 1958         bool
                                                   >> 1959 config SYS_SUPPORTS_64BIT_KERNEL
                                                   >> 1960         bool
                                                   >> 1961 config CPU_SUPPORTS_32BIT_KERNEL
                                                   >> 1962         bool
                                                   >> 1963 config CPU_SUPPORTS_64BIT_KERNEL
                                                   >> 1964         bool
                                                   >> 1965 config CPU_SUPPORTS_CPUFREQ
                                                   >> 1966         bool
                                                   >> 1967 config CPU_SUPPORTS_ADDRWINCFG
                                                   >> 1968         bool
                                                   >> 1969 config CPU_SUPPORTS_HUGEPAGES
                                                   >> 1970         bool
                                                   >> 1971         depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
                                                   >> 1972 config MIPS_PGD_C0_CONTEXT
                                                   >> 1973         bool
                                                   >> 1974         depends on 64BIT
                                                   >> 1975         default y if (CPU_MIPSR2 || CPU_MIPSR6)
                                                   >> 1976 
                                                   >> 1977 #
                                                   >> 1978 # Set to y for ptrace access to watch registers.
                                                   >> 1979 #
                                                   >> 1980 config HARDWARE_WATCHPOINTS
                                                   >> 1981         bool
                                                   >> 1982         default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
                                                   >> 1983 
                                                   >> 1984 menu "Kernel type"
204                                                   1985 
205 config XTENSA_UNALIGNED_USER                   !! 1986 choice
206         bool "Unaligned memory access in user  !! 1987         prompt "Kernel code model"
207         help                                      1988         help
208           The Xtensa architecture currently do !! 1989           You should only select this option if you have a workload that
209           memory accesses in hardware but thro !! 1990           actually benefits from 64-bit processing or if your machine has
210           Per default, unaligned memory access !! 1991           large memory.  You will only be presented a single option in this
                                                   >> 1992           menu if your system does not support both 32-bit and 64-bit kernels.
211                                                   1993 
212           Say Y here to enable unaligned memor !! 1994 config 32BIT
                                                   >> 1995         bool "32-bit kernel"
                                                   >> 1996         depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
                                                   >> 1997         select TRAD_SIGNALS
                                                   >> 1998         help
                                                   >> 1999           Select this option if you want to build a 32-bit kernel.
213                                                   2000 
214 config XTENSA_LOAD_STORE                       !! 2001 config 64BIT
215         bool "Load/store exception handler for !! 2002         bool "64-bit kernel"
                                                   >> 2003         depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
216         help                                      2004         help
217           The Xtensa architecture only allows  !! 2005           Select this option if you want to build a 64-bit kernel.
218           instruction bus with l32r and l32i i !! 2006 
219           instructions raise an exception with !! 2007 endchoice
220           This makes it hard to use some confi !! 2008 
221           literals in FLASH memory attached to !! 2009 config MIPS_VA_BITS_48
                                                   >> 2010         bool "48 bits virtual memory"
                                                   >> 2011         depends on 64BIT
                                                   >> 2012         help
                                                   >> 2013           Support a maximum at least 48 bits of application virtual
                                                   >> 2014           memory.  Default is 40 bits or less, depending on the CPU.
                                                   >> 2015           For page sizes 16k and above, this option results in a small
                                                   >> 2016           memory overhead for page tables.  For 4k page size, a fourth
                                                   >> 2017           level of page tables is added which imposes both a memory
                                                   >> 2018           overhead as well as slower TLB fault handling.
222                                                   2019 
223           Say Y here to enable exception handl !! 2020           If unsure, say N.
224           byte and 2-byte access to memory att << 
225                                                   2021 
226 config HAVE_SMP                                !! 2022 config ZBOOT_LOAD_ADDRESS
227         bool "System Supports SMP (MX)"        !! 2023         hex "Compressed kernel load address"
228         depends on XTENSA_VARIANT_CUSTOM       !! 2024         default 0xffffffff80400000 if BCM47XX
229         select XTENSA_MX                       !! 2025         default 0x0
                                                   >> 2026         depends on SYS_SUPPORTS_ZBOOT
230         help                                      2027         help
231           This option is used to indicate that !! 2028           The address to load compressed kernel, aka vmlinuz.
232           supports Multiprocessing. Multiproce << 
233           the CPU core definition and currentl << 
234                                                   2029 
235           Multiprocessor support is implemente !! 2030           This is only used if non-zero.
236           interrupt controllers.               << 
237                                                   2031 
238           The MX interrupt distributer adds In !! 2032 choice
239           and causes the IRQ numbers to be inc !! 2033         prompt "Kernel page size"
240           like the open cores ethernet driver  !! 2034         default PAGE_SIZE_4KB
241                                                   2035 
242           You still have to select "Enable SMP !! 2036 config PAGE_SIZE_4KB
                                                   >> 2037         bool "4kB"
                                                   >> 2038         depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
                                                   >> 2039         help
                                                   >> 2040           This option select the standard 4kB Linux page size.  On some
                                                   >> 2041           R3000-family processors this is the only available page size.  Using
                                                   >> 2042           4kB page size will minimize memory consumption and is therefore
                                                   >> 2043           recommended for low memory systems.
                                                   >> 2044 
                                                   >> 2045 config PAGE_SIZE_8KB
                                                   >> 2046         bool "8kB"
                                                   >> 2047         depends on CPU_CAVIUM_OCTEON
                                                   >> 2048         depends on !MIPS_VA_BITS_48
                                                   >> 2049         help
                                                   >> 2050           Using 8kB page size will result in higher performance kernel at
                                                   >> 2051           the price of higher memory consumption.  This option is available
                                                   >> 2052           only on cnMIPS processors.  Note that you will need a suitable Linux
                                                   >> 2053           distribution to support this.
                                                   >> 2054 
                                                   >> 2055 config PAGE_SIZE_16KB
                                                   >> 2056         bool "16kB"
                                                   >> 2057         depends on !CPU_R3000
                                                   >> 2058         help
                                                   >> 2059           Using 16kB page size will result in higher performance kernel at
                                                   >> 2060           the price of higher memory consumption.  This option is available on
                                                   >> 2061           all non-R3000 family processors.  Note that you will need a suitable
                                                   >> 2062           Linux distribution to support this.
                                                   >> 2063 
                                                   >> 2064 config PAGE_SIZE_32KB
                                                   >> 2065         bool "32kB"
                                                   >> 2066         depends on CPU_CAVIUM_OCTEON
                                                   >> 2067         depends on !MIPS_VA_BITS_48
                                                   >> 2068         help
                                                   >> 2069           Using 32kB page size will result in higher performance kernel at
                                                   >> 2070           the price of higher memory consumption.  This option is available
                                                   >> 2071           only on cnMIPS cores.  Note that you will need a suitable Linux
                                                   >> 2072           distribution to support this.
                                                   >> 2073 
                                                   >> 2074 config PAGE_SIZE_64KB
                                                   >> 2075         bool "64kB"
                                                   >> 2076         depends on !CPU_R3000
                                                   >> 2077         help
                                                   >> 2078           Using 64kB page size will result in higher performance kernel at
                                                   >> 2079           the price of higher memory consumption.  This option is available on
                                                   >> 2080           all non-R3000 family processor.  Not that at the time of this
                                                   >> 2081           writing this option is still high experimental.
243                                                   2082 
244 config SMP                                     !! 2083 endchoice
245         bool "Enable Symmetric multi-processin !! 2084 
246         depends on HAVE_SMP                    !! 2085 config ARCH_FORCE_MAX_ORDER
247         select GENERIC_SMP_IDLE_THREAD         !! 2086         int "Maximum zone order"
                                                   >> 2087         default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
                                                   >> 2088         default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
                                                   >> 2089         default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
                                                   >> 2090         default "10"
248         help                                      2091         help
249           Enabled SMP Software; allows more th !! 2092           The kernel memory allocator divides physically contiguous memory
250           to be activated during startup.      !! 2093           blocks into "zones", where each zone is a power of two number of
                                                   >> 2094           pages.  This option selects the largest power of two that the kernel
                                                   >> 2095           keeps in the memory allocator.  If you need to allocate very large
                                                   >> 2096           blocks of physically contiguous memory, then you may need to
                                                   >> 2097           increase this value.
251                                                   2098 
252 config NR_CPUS                                 !! 2099           The page size is not necessarily 4KB.  Keep this in mind
253         depends on SMP                         !! 2100           when choosing a value for this option.
254         int "Maximum number of CPUs (2-32)"    << 
255         range 2 32                             << 
256         default "4"                            << 
257                                                   2101 
258 config HOTPLUG_CPU                             !! 2102 config BOARD_SCACHE
259         bool "Enable CPU hotplug support"      !! 2103         bool
260         depends on SMP                         !! 2104 
                                                   >> 2105 config IP22_CPU_SCACHE
                                                   >> 2106         bool
                                                   >> 2107         select BOARD_SCACHE
                                                   >> 2108 
                                                   >> 2109 #
                                                   >> 2110 # Support for a MIPS32 / MIPS64 style S-caches
                                                   >> 2111 #
                                                   >> 2112 config MIPS_CPU_SCACHE
                                                   >> 2113         bool
                                                   >> 2114         select BOARD_SCACHE
                                                   >> 2115 
                                                   >> 2116 config R5000_CPU_SCACHE
                                                   >> 2117         bool
                                                   >> 2118         select BOARD_SCACHE
                                                   >> 2119 
                                                   >> 2120 config RM7000_CPU_SCACHE
                                                   >> 2121         bool
                                                   >> 2122         select BOARD_SCACHE
                                                   >> 2123 
                                                   >> 2124 config SIBYTE_DMA_PAGEOPS
                                                   >> 2125         bool "Use DMA to clear/copy pages"
                                                   >> 2126         depends on CPU_SB1
261         help                                      2127         help
262           Say Y here to allow turning CPUs off !! 2128           Instead of using the CPU to zero and copy pages, use a Data Mover
263           controlled through /sys/devices/syst !! 2129           channel.  These DMA channels are otherwise unused by the standard
                                                   >> 2130           SiByte Linux port.  Seems to give a small performance benefit.
264                                                   2131 
265           Say N if you want to disable CPU hot !! 2132 config CPU_HAS_PREFETCH
                                                   >> 2133         bool
                                                   >> 2134 
                                                   >> 2135 config CPU_GENERIC_DUMP_TLB
                                                   >> 2136         bool
                                                   >> 2137         default y if !CPU_R3000
266                                                   2138 
267 config SECONDARY_RESET_VECTOR                  !! 2139 config MIPS_FP_SUPPORT
268         bool "Secondary cores use alternative  !! 2140         bool "Floating Point support" if EXPERT
269         default y                                 2141         default y
270         depends on HAVE_SMP                    << 
271         help                                      2142         help
272           Secondary cores may be configured to !! 2143           Select y to include support for floating point in the kernel
273           or all cores may use primary reset v !! 2144           including initialization of FPU hardware, FP context save & restore
274           Say Y here to supply handler for the !! 2145           and emulation of an FPU where necessary. Without this support any
                                                   >> 2146           userland program attempting to use floating point instructions will
                                                   >> 2147           receive a SIGILL.
275                                                   2148 
276 config FAST_SYSCALL_XTENSA                     !! 2149           If you know that your userland will not attempt to use floating point
277         bool "Enable fast atomic syscalls"     !! 2150           instructions then you can say n here to shrink the kernel a little.
278         default n                              << 
279         help                                   << 
280           fast_syscall_xtensa is a syscall tha << 
281           on UP kernel when processor has no s << 
282                                                   2151 
283           This syscall is deprecated. It may h !! 2152           If unsure, say y.
284           invalid arguments. It is provided on << 
285           Only enable it if your userspace sof << 
286                                                   2153 
287           If unsure, say N.                    !! 2154 config CPU_R2300_FPU
                                                   >> 2155         bool
                                                   >> 2156         depends on MIPS_FP_SUPPORT
                                                   >> 2157         default y if CPU_R3000
288                                                   2158 
289 config FAST_SYSCALL_SPILL_REGISTERS            !! 2159 config CPU_R3K_TLB
290         bool "Enable spill registers syscall"  !! 2160         bool
                                                   >> 2161 
                                                   >> 2162 config CPU_R4K_FPU
                                                   >> 2163         bool
                                                   >> 2164         depends on MIPS_FP_SUPPORT
                                                   >> 2165         default y if !CPU_R2300_FPU
                                                   >> 2166 
                                                   >> 2167 config CPU_R4K_CACHE_TLB
                                                   >> 2168         bool
                                                   >> 2169         default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
                                                   >> 2170 
                                                   >> 2171 config MIPS_MT_SMP
                                                   >> 2172         bool "MIPS MT SMP support (1 TC on each available VPE)"
                                                   >> 2173         default y
                                                   >> 2174         depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
                                                   >> 2175         select CPU_MIPSR2_IRQ_VI
                                                   >> 2176         select CPU_MIPSR2_IRQ_EI
                                                   >> 2177         select SYNC_R4K
                                                   >> 2178         select MIPS_MT
                                                   >> 2179         select SMP
                                                   >> 2180         select SMP_UP
                                                   >> 2181         select SYS_SUPPORTS_SMP
                                                   >> 2182         select SYS_SUPPORTS_SCHED_SMT
                                                   >> 2183         select MIPS_PERF_SHARED_TC_COUNTERS
                                                   >> 2184         help
                                                   >> 2185           This is a kernel model which is known as SMVP. This is supported
                                                   >> 2186           on cores with the MT ASE and uses the available VPEs to implement
                                                   >> 2187           virtual processors which supports SMP. This is equivalent to the
                                                   >> 2188           Intel Hyperthreading feature. For further information go to
                                                   >> 2189           <http://www.imgtec.com/mips/mips-multithreading.asp>.
                                                   >> 2190 
                                                   >> 2191 config MIPS_MT
                                                   >> 2192         bool
                                                   >> 2193 
                                                   >> 2194 config SCHED_SMT
                                                   >> 2195         bool "SMT (multithreading) scheduler support"
                                                   >> 2196         depends on SYS_SUPPORTS_SCHED_SMT
291         default n                                 2197         default n
292         help                                      2198         help
293           fast_syscall_spill_registers is a sy !! 2199           SMT scheduler support improves the CPU scheduler's decision making
294           register windows of a calling usersp !! 2200           when dealing with MIPS MT enabled cores at a cost of slightly
                                                   >> 2201           increased overhead in some places. If unsure say N here.
295                                                   2202 
296           This syscall is deprecated. It may h !! 2203 config SYS_SUPPORTS_SCHED_SMT
297           invalid arguments. It is provided on !! 2204         bool
298           Only enable it if your userspace sof << 
299                                                   2205 
300           If unsure, say N.                    !! 2206 config SYS_SUPPORTS_MULTITHREADING
                                                   >> 2207         bool
301                                                   2208 
302 choice                                         !! 2209 config MIPS_MT_FPAFF
303         prompt "Kernel ABI"                    !! 2210         bool "Dynamic FPU affinity for FP-intensive threads"
304         default KERNEL_ABI_DEFAULT             !! 2211         default y
                                                   >> 2212         depends on MIPS_MT_SMP
                                                   >> 2213 
                                                   >> 2214 config MIPSR2_TO_R6_EMULATOR
                                                   >> 2215         bool "MIPS R2-to-R6 emulator"
                                                   >> 2216         depends on CPU_MIPSR6
                                                   >> 2217         depends on MIPS_FP_SUPPORT
                                                   >> 2218         default y
305         help                                      2219         help
306           Select ABI for the kernel code. This !! 2220           Choose this option if you want to run non-R6 MIPS userland code.
307           supported userspace ABI and any comb !! 2221           Even if you say 'Y' here, the emulator will still be disabled by
308           kernel/userspace ABI is possible and !! 2222           default. You can enable it using the 'mipsr2emu' kernel option.
309                                                !! 2223           The only reason this is a build-time option is to save ~14K from the
310           In case both kernel and userspace su !! 2224           final kernel image.
311           all register windows support code wi << 
312           build.                               << 
313                                                << 
314           If unsure, choose the default ABI.   << 
315                                                << 
316 config KERNEL_ABI_DEFAULT                      << 
317         bool "Default ABI"                     << 
318         help                                   << 
319           Select this option to compile kernel << 
320           selected for the toolchain.          << 
321           Normally cores with windowed registe << 
322           cores without it use call0 ABI.      << 
323                                                << 
324 config KERNEL_ABI_CALL0                        << 
325         bool "Call0 ABI" if CC_HAVE_CALL0_ABI  << 
326         help                                   << 
327           Select this option to compile kernel << 
328           toolchain that defaults to windowed  << 
329           When this option is not selected the << 
330           be used for the kernel code.         << 
331                                                   2225 
332 endchoice                                      !! 2226 config SYS_SUPPORTS_VPE_LOADER
                                                   >> 2227         bool
                                                   >> 2228         depends on SYS_SUPPORTS_MULTITHREADING
                                                   >> 2229         help
                                                   >> 2230           Indicates that the platform supports the VPE loader, and provides
                                                   >> 2231           physical_memsize.
333                                                   2232 
334 config USER_ABI_CALL0                          !! 2233 config MIPS_VPE_LOADER
                                                   >> 2234         bool "VPE loader support."
                                                   >> 2235         depends on SYS_SUPPORTS_VPE_LOADER && MODULES
                                                   >> 2236         select CPU_MIPSR2_IRQ_VI
                                                   >> 2237         select CPU_MIPSR2_IRQ_EI
                                                   >> 2238         select MIPS_MT
                                                   >> 2239         help
                                                   >> 2240           Includes a loader for loading an elf relocatable object
                                                   >> 2241           onto another VPE and running it.
                                                   >> 2242 
                                                   >> 2243 config MIPS_VPE_LOADER_MT
335         bool                                      2244         bool
                                                   >> 2245         default "y"
                                                   >> 2246         depends on MIPS_VPE_LOADER
336                                                   2247 
337 choice                                         !! 2248 config MIPS_VPE_LOADER_TOM
338         prompt "Userspace ABI"                 !! 2249         bool "Load VPE program into memory hidden from linux"
339         default USER_ABI_DEFAULT               !! 2250         depends on MIPS_VPE_LOADER
                                                   >> 2251         default y
340         help                                      2252         help
341           Select supported userspace ABI.      !! 2253           The loader can use memory that is present but has been hidden from
                                                   >> 2254           Linux using the kernel command line option "mem=xxMB". It's up to
                                                   >> 2255           you to ensure the amount you put in the option and the space your
                                                   >> 2256           program requires is less or equal to the amount physically present.
                                                   >> 2257 
                                                   >> 2258 config MIPS_VPE_APSP_API
                                                   >> 2259         bool "Enable support for AP/SP API (RTLX)"
                                                   >> 2260         depends on MIPS_VPE_LOADER
                                                   >> 2261 
                                                   >> 2262 config MIPS_VPE_APSP_API_MT
                                                   >> 2263         bool
                                                   >> 2264         default "y"
                                                   >> 2265         depends on MIPS_VPE_APSP_API
                                                   >> 2266 
                                                   >> 2267 config MIPS_CPS
                                                   >> 2268         bool "MIPS Coherent Processing System support"
                                                   >> 2269         depends on SYS_SUPPORTS_MIPS_CPS
                                                   >> 2270         select MIPS_CM
                                                   >> 2271         select MIPS_CPS_PM if HOTPLUG_CPU
                                                   >> 2272         select SMP
                                                   >> 2273         select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
                                                   >> 2274         select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
                                                   >> 2275         select SYS_SUPPORTS_HOTPLUG_CPU
                                                   >> 2276         select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
                                                   >> 2277         select SYS_SUPPORTS_SMP
                                                   >> 2278         select WEAK_ORDERING
                                                   >> 2279         select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
                                                   >> 2280         help
                                                   >> 2281           Select this if you wish to run an SMP kernel across multiple cores
                                                   >> 2282           within a MIPS Coherent Processing System. When this option is
                                                   >> 2283           enabled the kernel will probe for other cores and boot them with
                                                   >> 2284           no external assistance. It is safe to enable this when hardware
                                                   >> 2285           support is unavailable.
                                                   >> 2286 
                                                   >> 2287 config MIPS_CPS_PM
                                                   >> 2288         depends on MIPS_CPS
                                                   >> 2289         bool
                                                   >> 2290 
                                                   >> 2291 config MIPS_CM
                                                   >> 2292         bool
                                                   >> 2293         select MIPS_CPC
                                                   >> 2294 
                                                   >> 2295 config MIPS_CPC
                                                   >> 2296         bool
                                                   >> 2297 
                                                   >> 2298 config SB1_PASS_2_WORKAROUNDS
                                                   >> 2299         bool
                                                   >> 2300         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
                                                   >> 2301         default y
                                                   >> 2302 
                                                   >> 2303 config SB1_PASS_2_1_WORKAROUNDS
                                                   >> 2304         bool
                                                   >> 2305         depends on CPU_SB1 && CPU_SB1_PASS_2
                                                   >> 2306         default y
342                                                   2307 
343           If unsure, choose the default ABI.   !! 2308 choice
                                                   >> 2309         prompt "SmartMIPS or microMIPS ASE support"
344                                                   2310 
345 config USER_ABI_DEFAULT                        !! 2311 config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
346         bool "Default ABI only"                !! 2312         bool "None"
347         help                                      2313         help
348           Assume default userspace ABI. For XE !! 2314           Select this if you want neither microMIPS nor SmartMIPS support
349           call0 ABI binaries may be run on suc << 
350           will not work correctly for them.    << 
351                                                   2315 
352 config USER_ABI_CALL0_ONLY                     !! 2316 config CPU_HAS_SMARTMIPS
353         bool "Call0 ABI only"                  !! 2317         depends on SYS_SUPPORTS_SMARTMIPS
354         select USER_ABI_CALL0                  !! 2318         bool "SmartMIPS"
                                                   >> 2319         help
                                                   >> 2320           SmartMIPS is a extension of the MIPS32 architecture aimed at
                                                   >> 2321           increased security at both hardware and software level for
                                                   >> 2322           smartcards.  Enabling this option will allow proper use of the
                                                   >> 2323           SmartMIPS instructions by Linux applications.  However a kernel with
                                                   >> 2324           this option will not work on a MIPS core without SmartMIPS core.  If
                                                   >> 2325           you don't know you probably don't have SmartMIPS and should say N
                                                   >> 2326           here.
                                                   >> 2327 
                                                   >> 2328 config CPU_MICROMIPS
                                                   >> 2329         depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
                                                   >> 2330         bool "microMIPS"
355         help                                      2331         help
356           Select this option to support only c !! 2332           When this option is enabled the kernel will be built using the
357           Windowed ABI binaries will crash wit !! 2333           microMIPS ISA
358           an illegal instruction exception on  << 
359                                                   2334 
360           Choose this option if you're plannin !! 2335 endchoice
361           built with call0 ABI.                << 
362                                                   2336 
363 config USER_ABI_CALL0_PROBE                    !! 2337 config CPU_HAS_MSA
364         bool "Support both windowed and call0  !! 2338         bool "Support for the MIPS SIMD Architecture"
365         select USER_ABI_CALL0                  !! 2339         depends on CPU_SUPPORTS_MSA
366         help                                   !! 2340         depends on MIPS_FP_SUPPORT
367           Select this option to support both w !! 2341         depends on 64BIT || MIPS_O32_FP64_SUPPORT
368           ABIs. When enabled all processes are !! 2342         help
369           and a fast user exception handler fo !! 2343           MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
370           used to turn on PS.WOE bit on the fi !! 2344           and a set of SIMD instructions to operate on them. When this option
371           the userspace.                       !! 2345           is enabled the kernel will support allocating & switching MSA
                                                   >> 2346           vector register contexts. If you know that your kernel will only be
                                                   >> 2347           running on CPUs which do not support MSA or that your userland will
                                                   >> 2348           not be making use of it then you may wish to say N here to reduce
                                                   >> 2349           the size & complexity of your kernel.
372                                                   2350 
373           This option should be enabled for th !! 2351           If unsure, say Y.
374           both call0 and windowed ABIs in user << 
375                                                   2352 
376           Note that Xtensa ISA does not guaran !! 2353 config CPU_HAS_WB
377           raise an illegal instruction excepti !! 2354         bool
378           PS.WOE is disabled, check whether th << 
379                                                   2355 
380 endchoice                                      !! 2356 config XKS01
                                                   >> 2357         bool
381                                                   2358 
382 endmenu                                        !! 2359 config CPU_HAS_DIEI
                                                   >> 2360         depends on !CPU_DIEI_BROKEN
                                                   >> 2361         bool
383                                                   2362 
384 config XTENSA_CALIBRATE_CCOUNT                 !! 2363 config CPU_DIEI_BROKEN
385         def_bool n                             !! 2364         bool
                                                   >> 2365 
                                                   >> 2366 config CPU_HAS_RIXI
                                                   >> 2367         bool
                                                   >> 2368 
                                                   >> 2369 config CPU_NO_LOAD_STORE_LR
                                                   >> 2370         bool
386         help                                      2371         help
387           On some platforms (XT2000, for examp !! 2372           CPU lacks support for unaligned load and store instructions:
388           vary.  The frequency can be determin !! 2373           LWL, LWR, SWL, SWR (Load/store word left/right).
389           against a well known, fixed frequenc !! 2374           LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
                                                   >> 2375           systems).
                                                   >> 2376 
                                                   >> 2377 #
                                                   >> 2378 # Vectored interrupt mode is an R2 feature
                                                   >> 2379 #
                                                   >> 2380 config CPU_MIPSR2_IRQ_VI
                                                   >> 2381         bool
390                                                   2382 
391 config SERIAL_CONSOLE                          !! 2383 #
392         def_bool n                             !! 2384 # Extended interrupt mode is an R2 feature
                                                   >> 2385 #
                                                   >> 2386 config CPU_MIPSR2_IRQ_EI
                                                   >> 2387         bool
393                                                   2388 
394 config PLATFORM_HAVE_XIP                       !! 2389 config CPU_HAS_SYNC
395         def_bool n                             !! 2390         bool
                                                   >> 2391         depends on !CPU_R3000
                                                   >> 2392         default y
396                                                   2393 
397 menu "Platform options"                        !! 2394 #
                                                   >> 2395 # CPU non-features
                                                   >> 2396 #
                                                   >> 2397 
                                                   >> 2398 # Work around the "daddi" and "daddiu" CPU errata:
                                                   >> 2399 #
                                                   >> 2400 # - The `daddi' instruction fails to trap on overflow.
                                                   >> 2401 #   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
                                                   >> 2402 #   erratum #23
                                                   >> 2403 #
                                                   >> 2404 # - The `daddiu' instruction can produce an incorrect result.
                                                   >> 2405 #   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
                                                   >> 2406 #   erratum #41
                                                   >> 2407 #   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
                                                   >> 2408 #   #15
                                                   >> 2409 #   "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
                                                   >> 2410 #   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
                                                   >> 2411 config CPU_DADDI_WORKAROUNDS
                                                   >> 2412         bool
398                                                   2413 
399 choice                                         !! 2414 # Work around certain R4000 CPU errata (as implemented by GCC):
400         prompt "Xtensa System Type"            !! 2415 #
401         default XTENSA_PLATFORM_ISS            !! 2416 # - A double-word or a variable shift may give an incorrect result
                                                   >> 2417 #   if executed immediately after starting an integer division:
                                                   >> 2418 #   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
                                                   >> 2419 #   erratum #28
                                                   >> 2420 #   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
                                                   >> 2421 #   #19
                                                   >> 2422 #
                                                   >> 2423 # - A double-word or a variable shift may give an incorrect result
                                                   >> 2424 #   if executed while an integer multiplication is in progress:
                                                   >> 2425 #   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
                                                   >> 2426 #   errata #16 & #28
                                                   >> 2427 #
                                                   >> 2428 # - An integer division may give an incorrect result if started in
                                                   >> 2429 #   a delay slot of a taken branch or a jump:
                                                   >> 2430 #   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
                                                   >> 2431 #   erratum #52
                                                   >> 2432 config CPU_R4000_WORKAROUNDS
                                                   >> 2433         bool
                                                   >> 2434         select CPU_R4400_WORKAROUNDS
402                                                   2435 
403 config XTENSA_PLATFORM_ISS                     !! 2436 # Work around certain R4400 CPU errata (as implemented by GCC):
404         bool "ISS"                             !! 2437 #
405         select XTENSA_CALIBRATE_CCOUNT         !! 2438 # - A double-word or a variable shift may give an incorrect result
406         select SERIAL_CONSOLE                  !! 2439 #   if executed immediately after starting an integer division:
407         help                                   !! 2440 #   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
408           ISS is an acronym for Tensilica's In !! 2441 #   "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
409                                                !! 2442 config CPU_R4400_WORKAROUNDS
410 config XTENSA_PLATFORM_XT2000                  !! 2443         bool
411         bool "XT2000"                          << 
412         help                                   << 
413           XT2000 is the name of Tensilica's fe << 
414           This hardware is capable of running  << 
415                                                << 
416 config XTENSA_PLATFORM_XTFPGA                  << 
417         bool "XTFPGA"                          << 
418         select ETHOC if ETHERNET               << 
419         select PLATFORM_WANT_DEFAULT_MEM if !M << 
420         select SERIAL_CONSOLE                  << 
421         select XTENSA_CALIBRATE_CCOUNT         << 
422         select PLATFORM_HAVE_XIP               << 
423         help                                   << 
424           XTFPGA is the name of Tensilica boar << 
425           This hardware is capable of running  << 
426                                                   2444 
427 endchoice                                      !! 2445 config CPU_R4X00_BUGS64
                                                   >> 2446         bool
                                                   >> 2447         default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
428                                                   2448 
429 config PLATFORM_NR_IRQS                        !! 2449 config MIPS_ASID_SHIFT
430         int                                       2450         int
431         default 3 if XTENSA_PLATFORM_XT2000    !! 2451         default 6 if CPU_R3000
432         default 0                                 2452         default 0
433                                                   2453 
434 config XTENSA_CPU_CLOCK                        !! 2454 config MIPS_ASID_BITS
435         int "CPU clock rate [MHz]"             !! 2455         int
436         depends on !XTENSA_CALIBRATE_CCOUNT    !! 2456         default 0 if MIPS_ASID_BITS_VARIABLE
437         default 16                             !! 2457         default 6 if CPU_R3000
                                                   >> 2458         default 8
438                                                   2459 
439 config GENERIC_CALIBRATE_DELAY                 !! 2460 config MIPS_ASID_BITS_VARIABLE
440         bool "Auto calibration of the BogoMIPS !! 2461         bool
441         help                                   << 
442           The BogoMIPS value can easily be der << 
443                                                   2462 
444 config CMDLINE_BOOL                            !! 2463 config MIPS_CRC_SUPPORT
445         bool "Default bootloader kernel argume !! 2464         bool
446                                                   2465 
447 config CMDLINE                                 !! 2466 # R4600 erratum.  Due to the lack of errata information the exact
448         string "Initial kernel command string" !! 2467 # technical details aren't known.  I've experimentally found that disabling
449         depends on CMDLINE_BOOL                !! 2468 # interrupts during indexed I-cache flushes seems to be sufficient to deal
450         default "console=ttyS0,38400 root=/dev !! 2469 # with the issue.
451         help                                   !! 2470 config WAR_R4600_V1_INDEX_ICACHEOP
452           On some architectures (EBSA110 and C !! 2471         bool
453           for the boot loader to pass argument << 
454           architectures, you should supply som << 
455           time by entering them here. As a min << 
456           memory size and the root device (e.g << 
457                                                   2472 
458 config USE_OF                                  !! 2473 # Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
459         bool "Flattened Device Tree support"   !! 2474 #
460         select OF                              !! 2475 #  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
461         select OF_EARLY_FLATTREE               !! 2476 #      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
462         help                                   !! 2477 #      executed if there is no other dcache activity. If the dcache is
463           Include support for flattened device !! 2478 #      accessed for another instruction immediately preceding when these
                                                   >> 2479 #      cache instructions are executing, it is possible that the dcache
                                                   >> 2480 #      tag match outputs used by these cache instructions will be
                                                   >> 2481 #      incorrect. These cache instructions should be preceded by at least
                                                   >> 2482 #      four instructions that are not any kind of load or store
                                                   >> 2483 #      instruction.
                                                   >> 2484 #
                                                   >> 2485 #      This is not allowed:    lw
                                                   >> 2486 #                              nop
                                                   >> 2487 #                              nop
                                                   >> 2488 #                              nop
                                                   >> 2489 #                              cache       Hit_Writeback_Invalidate_D
                                                   >> 2490 #
                                                   >> 2491 #      This is allowed:        lw
                                                   >> 2492 #                              nop
                                                   >> 2493 #                              nop
                                                   >> 2494 #                              nop
                                                   >> 2495 #                              nop
                                                   >> 2496 #                              cache       Hit_Writeback_Invalidate_D
                                                   >> 2497 config WAR_R4600_V1_HIT_CACHEOP
                                                   >> 2498         bool
464                                                   2499 
465 config BUILTIN_DTB_SOURCE                      !! 2500 # Writeback and invalidate the primary cache dcache before DMA.
466         string "DTB to build into the kernel i !! 2501 #
467         depends on OF                          !! 2502 # R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
                                                   >> 2503 # Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
                                                   >> 2504 # operate correctly if the internal data cache refill buffer is empty.  These
                                                   >> 2505 # CACHE instructions should be separated from any potential data cache miss
                                                   >> 2506 # by a load instruction to an uncached address to empty the response buffer."
                                                   >> 2507 # (Revision 2.0 device errata from IDT available on https://www.idt.com/
                                                   >> 2508 # in .pdf format.)
                                                   >> 2509 config WAR_R4600_V2_HIT_CACHEOP
                                                   >> 2510         bool
468                                                   2511 
469 config PARSE_BOOTPARAM                         !! 2512 # From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
470         bool "Parse bootparam block"           !! 2513 # the line which this instruction itself exists, the following
471         default y                              !! 2514 # operation is not guaranteed."
472         help                                   !! 2515 #
473           Parse parameters passed to the kerne !! 2516 # Workaround: do two phase flushing for Index_Invalidate_I
474           be disabled if the kernel is known t !! 2517 config WAR_TX49XX_ICACHE_INDEX_INV
                                                   >> 2518         bool
475                                                   2519 
476           If unsure, say Y.                    !! 2520 # The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
                                                   >> 2521 # opposes it being called that) where invalid instructions in the same
                                                   >> 2522 # I-cache line worth of instructions being fetched may case spurious
                                                   >> 2523 # exceptions.
                                                   >> 2524 config WAR_ICACHE_REFILLS
                                                   >> 2525         bool
477                                                   2526 
478 choice                                         !! 2527 # On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
479         prompt "Semihosting interface"         !! 2528 # may cause ll / sc and lld / scd sequences to execute non-atomically.
480         default XTENSA_SIMCALL_ISS             !! 2529 config WAR_R10000_LLSC
481         depends on XTENSA_PLATFORM_ISS         !! 2530         bool
482         help                                   << 
483           Choose semihosting interface that wi << 
484           block device and networking.         << 
485                                                   2531 
486 config XTENSA_SIMCALL_ISS                      !! 2532 # 34K core erratum: "Problems Executing the TLBR Instruction"
487         bool "simcall"                         !! 2533 config WAR_MIPS34K_MISSED_ITLB
488         help                                   !! 2534         bool
489           Use simcall instruction. simcall is  !! 2535 
490           it does nothing on hardware.         !! 2536 #
                                                   >> 2537 # - Highmem only makes sense for the 32-bit kernel.
                                                   >> 2538 # - The current highmem code will only work properly on physically indexed
                                                   >> 2539 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
                                                   >> 2540 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
                                                   >> 2541 #   moment we protect the user and offer the highmem option only on machines
                                                   >> 2542 #   where it's known to be safe.  This will not offer highmem on a few systems
                                                   >> 2543 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
                                                   >> 2544 #   indexed CPUs but we're playing safe.
                                                   >> 2545 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
                                                   >> 2546 #   know they might have memory configurations that could make use of highmem
                                                   >> 2547 #   support.
                                                   >> 2548 #
                                                   >> 2549 config HIGHMEM
                                                   >> 2550         bool "High Memory Support"
                                                   >> 2551         depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
                                                   >> 2552         select KMAP_LOCAL
491                                                   2553 
492 config XTENSA_SIMCALL_GDBIO                    !! 2554 config CPU_SUPPORTS_HIGHMEM
493         bool "GDBIO"                           !! 2555         bool
                                                   >> 2556 
                                                   >> 2557 config SYS_SUPPORTS_HIGHMEM
                                                   >> 2558         bool
                                                   >> 2559 
                                                   >> 2560 config SYS_SUPPORTS_SMARTMIPS
                                                   >> 2561         bool
                                                   >> 2562 
                                                   >> 2563 config SYS_SUPPORTS_MICROMIPS
                                                   >> 2564         bool
                                                   >> 2565 
                                                   >> 2566 config SYS_SUPPORTS_MIPS16
                                                   >> 2567         bool
494         help                                      2568         help
495           Use break instruction. It is availab !! 2569           This option must be set if a kernel might be executed on a MIPS16-
496           is attached to it via JTAG.          !! 2570           enabled CPU even if MIPS16 is not actually being used.  In other
                                                   >> 2571           words, it makes the kernel MIPS16-tolerant.
497                                                   2572 
498 endchoice                                      !! 2573 config CPU_SUPPORTS_MSA
                                                   >> 2574         bool
499                                                   2575 
500 config BLK_DEV_SIMDISK                         !! 2576 config ARCH_FLATMEM_ENABLE
501         tristate "Host file-based simulated bl !! 2577         def_bool y
502         default n                              !! 2578         depends on !NUMA && !CPU_LOONGSON2EF
503         depends on XTENSA_PLATFORM_ISS && BLOC !! 2579 
                                                   >> 2580 config ARCH_SPARSEMEM_ENABLE
                                                   >> 2581         bool
                                                   >> 2582 
                                                   >> 2583 config NUMA
                                                   >> 2584         bool "NUMA Support"
                                                   >> 2585         depends on SYS_SUPPORTS_NUMA
                                                   >> 2586         select SMP
                                                   >> 2587         select HAVE_SETUP_PER_CPU_AREA
                                                   >> 2588         select NEED_PER_CPU_EMBED_FIRST_CHUNK
                                                   >> 2589         help
                                                   >> 2590           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
                                                   >> 2591           Access).  This option improves performance on systems with more
                                                   >> 2592           than two nodes; on two node systems it is generally better to
                                                   >> 2593           leave it disabled; on single node systems leave this option
                                                   >> 2594           disabled.
                                                   >> 2595 
                                                   >> 2596 config SYS_SUPPORTS_NUMA
                                                   >> 2597         bool
                                                   >> 2598 
                                                   >> 2599 config HAVE_ARCH_NODEDATA_EXTENSION
                                                   >> 2600         bool
                                                   >> 2601 
                                                   >> 2602 config RELOCATABLE
                                                   >> 2603         bool "Relocatable kernel"
                                                   >> 2604         depends on SYS_SUPPORTS_RELOCATABLE
                                                   >> 2605         depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
                                                   >> 2606                    CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
                                                   >> 2607                    CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
                                                   >> 2608                    CPU_P5600 || CAVIUM_OCTEON_SOC || \
                                                   >> 2609                    CPU_LOONGSON64
                                                   >> 2610         help
                                                   >> 2611           This builds a kernel image that retains relocation information
                                                   >> 2612           so it can be loaded someplace besides the default 1MB.
                                                   >> 2613           The relocations make the kernel binary about 15% larger,
                                                   >> 2614           but are discarded at runtime
                                                   >> 2615 
                                                   >> 2616 config RELOCATION_TABLE_SIZE
                                                   >> 2617         hex "Relocation table size"
                                                   >> 2618         depends on RELOCATABLE
                                                   >> 2619         range 0x0 0x01000000
                                                   >> 2620         default "0x00200000" if CPU_LOONGSON64
                                                   >> 2621         default "0x00100000"
                                                   >> 2622         help
                                                   >> 2623           A table of relocation data will be appended to the kernel binary
                                                   >> 2624           and parsed at boot to fix up the relocated kernel.
                                                   >> 2625 
                                                   >> 2626           This option allows the amount of space reserved for the table to be
                                                   >> 2627           adjusted, although the default of 1Mb should be ok in most cases.
                                                   >> 2628 
                                                   >> 2629           The build will fail and a valid size suggested if this is too small.
                                                   >> 2630 
                                                   >> 2631           If unsure, leave at the default value.
                                                   >> 2632 
                                                   >> 2633 config RANDOMIZE_BASE
                                                   >> 2634         bool "Randomize the address of the kernel image"
                                                   >> 2635         depends on RELOCATABLE
                                                   >> 2636         help
                                                   >> 2637           Randomizes the physical and virtual address at which the
                                                   >> 2638           kernel image is loaded, as a security feature that
                                                   >> 2639           deters exploit attempts relying on knowledge of the location
                                                   >> 2640           of kernel internals.
                                                   >> 2641 
                                                   >> 2642           Entropy is generated using any coprocessor 0 registers available.
                                                   >> 2643 
                                                   >> 2644           The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
                                                   >> 2645 
                                                   >> 2646           If unsure, say N.
                                                   >> 2647 
                                                   >> 2648 config RANDOMIZE_BASE_MAX_OFFSET
                                                   >> 2649         hex "Maximum kASLR offset" if EXPERT
                                                   >> 2650         depends on RANDOMIZE_BASE
                                                   >> 2651         range 0x0 0x40000000 if EVA || 64BIT
                                                   >> 2652         range 0x0 0x08000000
                                                   >> 2653         default "0x01000000"
                                                   >> 2654         help
                                                   >> 2655           When kASLR is active, this provides the maximum offset that will
                                                   >> 2656           be applied to the kernel image. It should be set according to the
                                                   >> 2657           amount of physical RAM available in the target system minus
                                                   >> 2658           PHYSICAL_START and must be a power of 2.
                                                   >> 2659 
                                                   >> 2660           This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
                                                   >> 2661           EVA or 64-bit. The default is 16Mb.
                                                   >> 2662 
                                                   >> 2663 config NODES_SHIFT
                                                   >> 2664         int
                                                   >> 2665         default "6"
                                                   >> 2666         depends on NUMA
                                                   >> 2667 
                                                   >> 2668 config HW_PERF_EVENTS
                                                   >> 2669         bool "Enable hardware performance counter support for perf events"
                                                   >> 2670         depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
                                                   >> 2671         default y
504         help                                      2672         help
505           Create block devices that map to fil !! 2673           Enable hardware performance counter support for perf events. If
506           Device binding to host file may be c !! 2674           disabled, perf events will use software events only.
507           interface provided the device is not !! 2675 
508                                                !! 2676 config DMI
509 config BLK_DEV_SIMDISK_COUNT                   !! 2677         bool "Enable DMI scanning"
510         int "Number of host file-based simulat !! 2678         depends on MACH_LOONGSON64
511         range 1 10                             !! 2679         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
512         depends on BLK_DEV_SIMDISK             !! 2680         default y
513         default 2                              << 
514         help                                      2681         help
515           This is the default minimal number o !! 2682           Enabled scanning of DMI to identify machine quirks. Say Y
516           Kernel/module parameter 'simdisk_cou !! 2683           here unless you have verified that your setup is not
517           value at runtime. More file names (b !! 2684           affected by entries in the DMI blacklist. Required by PNP
518           specified as parameters, simdisk_cou !! 2685           BIOS code.
519                                                !! 2686 
520 config SIMDISK0_FILENAME                       !! 2687 config SMP
521         string "Host filename for the first si !! 2688         bool "Multi-Processing support"
522         depends on BLK_DEV_SIMDISK = y         !! 2689         depends on SYS_SUPPORTS_SMP
523         default ""                             << 
524         help                                   << 
525           Attach a first simdisk to a host fil << 
526           contains a root file system.         << 
527                                                << 
528 config SIMDISK1_FILENAME                       << 
529         string "Host filename for the second s << 
530         depends on BLK_DEV_SIMDISK = y && BLK_ << 
531         default ""                             << 
532         help                                   << 
533           Another simulated disk in a host fil << 
534           storage.                             << 
535                                                << 
536 config XTFPGA_LCD                              << 
537         bool "Enable XTFPGA LCD driver"        << 
538         depends on XTENSA_PLATFORM_XTFPGA      << 
539         default n                              << 
540         help                                      2690         help
541           There's a 2x16 LCD on most of XTFPGA !! 2691           This enables support for systems with more than one CPU. If you have
542           progress messages there during bootu !! 2692           a system with only one CPU, say N. If you have a system with more
543           during board bringup.                !! 2693           than one CPU, say Y.
                                                   >> 2694 
                                                   >> 2695           If you say N here, the kernel will run on uni- and multiprocessor
                                                   >> 2696           machines, but will use only one CPU of a multiprocessor machine. If
                                                   >> 2697           you say Y here, the kernel will run on many, but not all,
                                                   >> 2698           uniprocessor machines. On a uniprocessor machine, the kernel
                                                   >> 2699           will run faster if you say N here.
544                                                   2700 
545           If unsure, say N.                    !! 2701           People using multiprocessor machines who say Y here should also say
                                                   >> 2702           Y to "Enhanced Real Time Clock Support", below.
546                                                   2703 
547 config XTFPGA_LCD_BASE_ADDR                    !! 2704           See also the SMP-HOWTO available at
548         hex "XTFPGA LCD base address"          !! 2705           <https://www.tldp.org/docs.html#howto>.
549         depends on XTFPGA_LCD                  !! 2706 
550         default "0x0d0c0000"                   !! 2707           If you don't know what to do here, say N.
551         help                                   !! 2708 
552           Base address of the LCD controller i !! 2709 config HOTPLUG_CPU
553           Different boards from XTFPGA family  !! 2710         bool "Support for hot-pluggable CPUs"
554           addresses. Please consult prototypin !! 2711         depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
555           the correct address. Wrong address h << 
556                                                << 
557 config XTFPGA_LCD_8BIT_ACCESS                  << 
558         bool "Use 8-bit access to XTFPGA LCD"  << 
559         depends on XTFPGA_LCD                  << 
560         default n                              << 
561         help                                      2712         help
562           LCD may be connected with 4- or 8-bi !! 2713           Say Y here to allow turning CPUs off and on. CPUs can be
563           only be used with 8-bit interface. P !! 2714           controlled through /sys/devices/system/cpu.
564           guide for your board for the correct !! 2715           (Note: power management support will enable this option
565                                                !! 2716             automatically on SMP systems. )
566 comment "Kernel memory layout"                 !! 2717           Say N if you want to disable CPU hotplug.
567                                                << 
568 config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX    << 
569         bool "Initialize Xtensa MMU inside the << 
570         depends on !XTENSA_VARIANT_FSF && !XTE << 
571         default y if XTENSA_VARIANT_DC233C ||  << 
572         help                                   << 
573           Earlier version initialized the MMU  << 
574           before jumping to _startup in head.S << 
575           it was possible to place a software  << 
576           then enter your normal kernel breakp << 
577           to the kernel mappings (0XC0000000). << 
578                                                << 
579           This unfortunately won't work for U- << 
580           work for using KEXEC to have a hot k << 
581           KDUMP.                               << 
582                                                << 
583           So now the MMU is initialized in hea << 
584           use hardware breakpoints (gdb 'hbrea << 
585           xt-gdb can't place a Software Breakp << 
586           to mapping the MMU and after mapping << 
587           was mapped gdb wouldn't remove the b << 
588           PC wouldn't match. Since Hardware Br << 
589           Linux configurations it seems reason << 
590           and leave this older mechanism for u << 
591           not to follow Tensilica's recommenda << 
592                                                << 
593           Selecting this will cause U-Boot to  << 
594           address at 0x00003000 instead of the << 
595                                                << 
596           If in doubt, say Y.                  << 
597                                                << 
598 config XIP_KERNEL                              << 
599         bool "Kernel Execute-In-Place from ROM << 
600         depends on PLATFORM_HAVE_XIP           << 
601         help                                   << 
602           Execute-In-Place allows the kernel t << 
603           directly addressable by the CPU, suc << 
604           space since the text section of the  << 
605           to RAM. Read-write sections, such as << 
606           are still copied to RAM. The XIP ker << 
607           it has to run directly from flash, s << 
608           store it. The flash address used to  << 
609           and for storing it, is configuration << 
610           say Y here, you must know the proper << 
611           store the kernel image depending on  << 
612                                                << 
613           Also note that the make target becom << 
614           "make Image" or "make uImage". The f << 
615           ROM memory will be arch/xtensa/boot/ << 
616                                                   2718 
617           If unsure, say N.                    !! 2719 config SMP_UP
                                                   >> 2720         bool
                                                   >> 2721 
                                                   >> 2722 config SYS_SUPPORTS_MIPS_CPS
                                                   >> 2723         bool
                                                   >> 2724 
                                                   >> 2725 config SYS_SUPPORTS_SMP
                                                   >> 2726         bool
                                                   >> 2727 
                                                   >> 2728 config NR_CPUS_DEFAULT_4
                                                   >> 2729         bool
                                                   >> 2730 
                                                   >> 2731 config NR_CPUS_DEFAULT_8
                                                   >> 2732         bool
                                                   >> 2733 
                                                   >> 2734 config NR_CPUS_DEFAULT_16
                                                   >> 2735         bool
                                                   >> 2736 
                                                   >> 2737 config NR_CPUS_DEFAULT_32
                                                   >> 2738         bool
                                                   >> 2739 
                                                   >> 2740 config NR_CPUS_DEFAULT_64
                                                   >> 2741         bool
                                                   >> 2742 
                                                   >> 2743 config NR_CPUS
                                                   >> 2744         int "Maximum number of CPUs (2-256)"
                                                   >> 2745         range 2 256
                                                   >> 2746         depends on SMP
                                                   >> 2747         default "4" if NR_CPUS_DEFAULT_4
                                                   >> 2748         default "8" if NR_CPUS_DEFAULT_8
                                                   >> 2749         default "16" if NR_CPUS_DEFAULT_16
                                                   >> 2750         default "32" if NR_CPUS_DEFAULT_32
                                                   >> 2751         default "64" if NR_CPUS_DEFAULT_64
                                                   >> 2752         help
                                                   >> 2753           This allows you to specify the maximum number of CPUs which this
                                                   >> 2754           kernel will support.  The maximum supported value is 32 for 32-bit
                                                   >> 2755           kernel and 64 for 64-bit kernels; the minimum value which makes
                                                   >> 2756           sense is 1 for Qemu (useful only for kernel debugging purposes)
                                                   >> 2757           and 2 for all others.
                                                   >> 2758 
                                                   >> 2759           This is purely to save memory - each supported CPU adds
                                                   >> 2760           approximately eight kilobytes to the kernel image.  For best
                                                   >> 2761           performance should round up your number of processors to the next
                                                   >> 2762           power of two.
                                                   >> 2763 
                                                   >> 2764 config MIPS_PERF_SHARED_TC_COUNTERS
                                                   >> 2765         bool
                                                   >> 2766 
                                                   >> 2767 config MIPS_NR_CPU_NR_MAP_1024
                                                   >> 2768         bool
618                                                   2769 
619 config MEMMAP_CACHEATTR                        !! 2770 config MIPS_NR_CPU_NR_MAP
620         hex "Cache attributes for the memory a !! 2771         int
621         depends on !MMU                        !! 2772         depends on SMP
622         default 0x22222222                     !! 2773         default 1024 if MIPS_NR_CPU_NR_MAP_1024
623         help                                   !! 2774         default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
624           These cache attributes are set up fo << 
625           specifies cache attributes for the c << 
626           region: bits 0..3 -- for addresses 0 << 
627           bits 4..7 -- for addresses 0x2000000 << 
628                                                << 
629           Cache attribute values are specific  << 
630           For region protection MMUs:          << 
631             1: WT cached,                      << 
632             2: cache bypass,                   << 
633             4: WB cached,                      << 
634             f: illegal.                        << 
635           For full MMU:                        << 
636             bit 0: executable,                 << 
637             bit 1: writable,                   << 
638             bits 2..3:                         << 
639               0: cache bypass,                 << 
640               1: WB cache,                     << 
641               2: WT cache,                     << 
642               3: special (c and e are illegal, << 
643           For MPU:                             << 
644             0: illegal,                        << 
645             1: WB cache,                       << 
646             2: WB, no-write-allocate cache,    << 
647             3: WT cache,                       << 
648             4: cache bypass.                   << 
649                                                << 
650 config KSEG_PADDR                              << 
651         hex "Physical address of the KSEG mapp << 
652         depends on INITIALIZE_XTENSA_MMU_INSID << 
653         default 0x00000000                     << 
654         help                                   << 
655           This is the physical address where K << 
656           the chosen KSEG layout help for the  << 
657           Unpacked kernel image (including vec << 
658           within KSEG.                         << 
659           Physical memory below this address i << 
660                                                << 
661           If unsure, leave the default value h << 
662                                                << 
663 config KERNEL_VIRTUAL_ADDRESS                  << 
664         hex "Kernel virtual address"           << 
665         depends on MMU && XIP_KERNEL           << 
666         default 0xd0003000                     << 
667         help                                   << 
668           This is the virtual address where th << 
669           XIP kernel may be mapped into KSEG o << 
670           provided here must match kernel load << 
671           KERNEL_LOAD_ADDRESS.                 << 
672                                                << 
673 config KERNEL_LOAD_ADDRESS                     << 
674         hex "Kernel load address"              << 
675         default 0x60003000 if !MMU             << 
676         default 0x00003000 if MMU && INITIALIZ << 
677         default 0xd0003000 if MMU && !INITIALI << 
678         help                                   << 
679           This is the address where the kernel << 
680           It is virtual address for MMUv2 conf << 
681           for all other configurations.        << 
682                                                   2775 
683           If unsure, leave the default value h !! 2776 #
                                                   >> 2777 # Timer Interrupt Frequency Configuration
                                                   >> 2778 #
684                                                   2779 
685 choice                                            2780 choice
686         prompt "Relocatable vectors location"  !! 2781         prompt "Timer frequency"
687         default XTENSA_VECTORS_IN_TEXT         !! 2782         default HZ_250
688         help                                      2783         help
689           Choose whether relocatable vectors a !! 2784           Allows the configuration of the timer frequency.
690           or placed separately at runtime. Thi !! 2785 
691           configurations without VECBASE regis !! 2786         config HZ_24
692           placed at their hardware-defined loc !! 2787                 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
693                                                !! 2788 
694 config XTENSA_VECTORS_IN_TEXT                  !! 2789         config HZ_48
695         bool "Merge relocatable vectors into k !! 2790                 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
696         depends on !MTD_XIP                    !! 2791 
697         help                                   !! 2792         config HZ_100
698           This option puts relocatable vectors !! 2793                 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
699           with proper alignment.               !! 2794 
700           This is a safe choice for most confi !! 2795         config HZ_128
701                                                !! 2796                 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
702 config XTENSA_VECTORS_SEPARATE                 !! 2797 
703         bool "Put relocatable vectors at fixed !! 2798         config HZ_250
704         help                                   !! 2799                 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
705           This option puts relocatable vectors !! 2800 
706           Vectors are merged with the .init da !! 2801         config HZ_256
707           are copied into their designated loc !! 2802                 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
708           Use it to put vectors into IRAM or o !! 2803 
709           XIP-aware MTD support.               !! 2804         config HZ_1000
                                                   >> 2805                 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
                                                   >> 2806 
                                                   >> 2807         config HZ_1024
                                                   >> 2808                 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
710                                                   2809 
711 endchoice                                         2810 endchoice
712                                                   2811 
713 config VECTORS_ADDR                            !! 2812 config SYS_SUPPORTS_24HZ
714         hex "Kernel vectors virtual address"   !! 2813         bool
715         default 0x00000000                     << 
716         depends on XTENSA_VECTORS_SEPARATE     << 
717         help                                   << 
718           This is the virtual address of the ( << 
719           It must be within KSEG if MMU is use << 
720                                                << 
721 config XIP_DATA_ADDR                           << 
722         hex "XIP kernel data virtual address"  << 
723         depends on XIP_KERNEL                  << 
724         default 0x00000000                     << 
725         help                                   << 
726           This is the virtual address where XI << 
727           It must be within KSEG if MMU is use << 
728                                                   2814 
729 config PLATFORM_WANT_DEFAULT_MEM               !! 2815 config SYS_SUPPORTS_48HZ
730         def_bool n                             !! 2816         bool
731                                                   2817 
732 config DEFAULT_MEM_START                       !! 2818 config SYS_SUPPORTS_100HZ
733         hex                                    !! 2819         bool
734         prompt "PAGE_OFFSET/PHYS_OFFSET" if !M !! 2820 
735         default 0x60000000 if PLATFORM_WANT_DE !! 2821 config SYS_SUPPORTS_128HZ
736         default 0x00000000                     !! 2822         bool
737         help                                   !! 2823 
738           This is the base address used for bo !! 2824 config SYS_SUPPORTS_250HZ
739           in noMMU configurations.             !! 2825         bool
740                                                   2826 
741           If unsure, leave the default value h !! 2827 config SYS_SUPPORTS_256HZ
                                                   >> 2828         bool
                                                   >> 2829 
                                                   >> 2830 config SYS_SUPPORTS_1000HZ
                                                   >> 2831         bool
                                                   >> 2832 
                                                   >> 2833 config SYS_SUPPORTS_1024HZ
                                                   >> 2834         bool
                                                   >> 2835 
                                                   >> 2836 config SYS_SUPPORTS_ARBIT_HZ
                                                   >> 2837         bool
                                                   >> 2838         default y if !SYS_SUPPORTS_24HZ && \
                                                   >> 2839                      !SYS_SUPPORTS_48HZ && \
                                                   >> 2840                      !SYS_SUPPORTS_100HZ && \
                                                   >> 2841                      !SYS_SUPPORTS_128HZ && \
                                                   >> 2842                      !SYS_SUPPORTS_250HZ && \
                                                   >> 2843                      !SYS_SUPPORTS_256HZ && \
                                                   >> 2844                      !SYS_SUPPORTS_1000HZ && \
                                                   >> 2845                      !SYS_SUPPORTS_1024HZ
                                                   >> 2846 
                                                   >> 2847 config HZ
                                                   >> 2848         int
                                                   >> 2849         default 24 if HZ_24
                                                   >> 2850         default 48 if HZ_48
                                                   >> 2851         default 100 if HZ_100
                                                   >> 2852         default 128 if HZ_128
                                                   >> 2853         default 250 if HZ_250
                                                   >> 2854         default 256 if HZ_256
                                                   >> 2855         default 1000 if HZ_1000
                                                   >> 2856         default 1024 if HZ_1024
                                                   >> 2857 
                                                   >> 2858 config SCHED_HRTICK
                                                   >> 2859         def_bool HIGH_RES_TIMERS
                                                   >> 2860 
                                                   >> 2861 config ARCH_SUPPORTS_KEXEC
                                                   >> 2862         def_bool y
                                                   >> 2863 
                                                   >> 2864 config ARCH_SUPPORTS_CRASH_DUMP
                                                   >> 2865         def_bool y
                                                   >> 2866 
                                                   >> 2867 config PHYSICAL_START
                                                   >> 2868         hex "Physical address where the kernel is loaded"
                                                   >> 2869         default "0xffffffff84000000"
                                                   >> 2870         depends on CRASH_DUMP
                                                   >> 2871         help
                                                   >> 2872           This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
                                                   >> 2873           If you plan to use kernel for capturing the crash dump change
                                                   >> 2874           this value to start of the reserved region (the "X" value as
                                                   >> 2875           specified in the "crashkernel=YM@XM" command line boot parameter
                                                   >> 2876           passed to the panic-ed kernel).
                                                   >> 2877 
                                                   >> 2878 config MIPS_O32_FP64_SUPPORT
                                                   >> 2879         bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
                                                   >> 2880         depends on 32BIT || MIPS32_O32
                                                   >> 2881         help
                                                   >> 2882           When this is enabled, the kernel will support use of 64-bit floating
                                                   >> 2883           point registers with binaries using the O32 ABI along with the
                                                   >> 2884           EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
                                                   >> 2885           32-bit MIPS systems this support is at the cost of increasing the
                                                   >> 2886           size and complexity of the compiled FPU emulator. Thus if you are
                                                   >> 2887           running a MIPS32 system and know that none of your userland binaries
                                                   >> 2888           will require 64-bit floating point, you may wish to reduce the size
                                                   >> 2889           of your kernel & potentially improve FP emulation performance by
                                                   >> 2890           saying N here.
                                                   >> 2891 
                                                   >> 2892           Although binutils currently supports use of this flag the details
                                                   >> 2893           concerning its effect upon the O32 ABI in userland are still being
                                                   >> 2894           worked on. In order to avoid userland becoming dependent upon current
                                                   >> 2895           behaviour before the details have been finalised, this option should
                                                   >> 2896           be considered experimental and only enabled by those working upon
                                                   >> 2897           said details.
                                                   >> 2898 
                                                   >> 2899           If unsure, say N.
                                                   >> 2900 
                                                   >> 2901 config USE_OF
                                                   >> 2902         bool
                                                   >> 2903         select OF
                                                   >> 2904         select OF_EARLY_FLATTREE
                                                   >> 2905         select IRQ_DOMAIN
                                                   >> 2906 
                                                   >> 2907 config UHI_BOOT
                                                   >> 2908         bool
                                                   >> 2909 
                                                   >> 2910 config BUILTIN_DTB
                                                   >> 2911         bool
742                                                   2912 
743 choice                                            2913 choice
744         prompt "KSEG layout"                   !! 2914         prompt "Kernel appended dtb support" if USE_OF
745         depends on MMU                         !! 2915         default MIPS_NO_APPENDED_DTB
746         default XTENSA_KSEG_MMU_V2             << 
747                                                << 
748 config XTENSA_KSEG_MMU_V2                      << 
749         bool "MMUv2: 128MB cached + 128MB unca << 
750         help                                   << 
751           MMUv2 compatible kernel memory map:  << 
752           at KSEG_PADDR to 0xd0000000 with cac << 
753           without cache.                       << 
754           KSEG_PADDR must be aligned to 128MB. << 
755                                                << 
756 config XTENSA_KSEG_256M                        << 
757         bool "256MB cached + 256MB uncached"   << 
758         depends on INITIALIZE_XTENSA_MMU_INSID << 
759         help                                   << 
760           TLB way 6 maps 256MB starting at KSE << 
761           with cache and to 0xc0000000 without << 
762           KSEG_PADDR must be aligned to 256MB. << 
763                                                << 
764 config XTENSA_KSEG_512M                        << 
765         bool "512MB cached + 512MB uncached"   << 
766         depends on INITIALIZE_XTENSA_MMU_INSID << 
767         help                                   << 
768           TLB way 6 maps 512MB starting at KSE << 
769           with cache and to 0xc0000000 without << 
770           KSEG_PADDR must be aligned to 256MB. << 
771                                                   2916 
                                                   >> 2917         config MIPS_NO_APPENDED_DTB
                                                   >> 2918                 bool "None"
                                                   >> 2919                 help
                                                   >> 2920                   Do not enable appended dtb support.
                                                   >> 2921 
                                                   >> 2922         config MIPS_ELF_APPENDED_DTB
                                                   >> 2923                 bool "vmlinux"
                                                   >> 2924                 help
                                                   >> 2925                   With this option, the boot code will look for a device tree binary
                                                   >> 2926                   DTB) included in the vmlinux ELF section .appended_dtb. By default
                                                   >> 2927                   it is empty and the DTB can be appended using binutils command
                                                   >> 2928                   objcopy:
                                                   >> 2929 
                                                   >> 2930                     objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
                                                   >> 2931 
                                                   >> 2932                   This is meant as a backward compatibility convenience for those
                                                   >> 2933                   systems with a bootloader that can't be upgraded to accommodate
                                                   >> 2934                   the documented boot protocol using a device tree.
                                                   >> 2935 
                                                   >> 2936         config MIPS_RAW_APPENDED_DTB
                                                   >> 2937                 bool "vmlinux.bin or vmlinuz.bin"
                                                   >> 2938                 help
                                                   >> 2939                   With this option, the boot code will look for a device tree binary
                                                   >> 2940                   DTB) appended to raw vmlinux.bin or vmlinuz.bin.
                                                   >> 2941                   (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
                                                   >> 2942 
                                                   >> 2943                   This is meant as a backward compatibility convenience for those
                                                   >> 2944                   systems with a bootloader that can't be upgraded to accommodate
                                                   >> 2945                   the documented boot protocol using a device tree.
                                                   >> 2946 
                                                   >> 2947                   Beware that there is very little in terms of protection against
                                                   >> 2948                   this option being confused by leftover garbage in memory that might
                                                   >> 2949                   look like a DTB header after a reboot if no actual DTB is appended
                                                   >> 2950                   to vmlinux.bin.  Do not leave this option active in a production kernel
                                                   >> 2951                   if you don't intend to always append a DTB.
772 endchoice                                         2952 endchoice
773                                                   2953 
774 config HIGHMEM                                 !! 2954 choice
775         bool "High Memory Support"             !! 2955         prompt "Kernel command line type" if !CMDLINE_OVERRIDE
776         depends on MMU                         !! 2956         default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
777         select KMAP_LOCAL                      !! 2957                                          !MACH_LOONGSON64 && !MIPS_MALTA && \
778         help                                   !! 2958                                          !CAVIUM_OCTEON_SOC
779           Linux can use the full amount of RAM !! 2959         default MIPS_CMDLINE_FROM_BOOTLOADER
780           default. However, the default MMUv2  !! 2960 
781           lowermost 128 MB of memory linearly  !! 2961         config MIPS_CMDLINE_FROM_DTB
782           at 0xd0000000 (cached) and 0xd800000 !! 2962                 depends on USE_OF
783           When there are more than 128 MB memo !! 2963                 bool "Dtb kernel arguments if available"
784           all of it can be "permanently mapped !! 2964 
785           The physical memory that's not perma !! 2965         config MIPS_CMDLINE_DTB_EXTEND
786           "high memory".                       !! 2966                 depends on USE_OF
787                                                !! 2967                 bool "Extend dtb kernel arguments with bootloader arguments"
788           If you are compiling a kernel which  !! 2968 
789           machine with more than 128 MB total  !! 2969         config MIPS_CMDLINE_FROM_BOOTLOADER
790           N here.                              !! 2970                 bool "Bootloader kernel arguments if available"
                                                   >> 2971 
                                                   >> 2972         config MIPS_CMDLINE_BUILTIN_EXTEND
                                                   >> 2973                 depends on CMDLINE_BOOL
                                                   >> 2974                 bool "Extend builtin kernel arguments with bootloader arguments"
                                                   >> 2975 endchoice
791                                                   2976 
792           If unsure, say Y.                    !! 2977 endmenu
793                                                   2978 
794 config ARCH_FORCE_MAX_ORDER                    !! 2979 config LOCKDEP_SUPPORT
795         int "Order of maximal physically conti !! 2980         bool
796         default "10"                           !! 2981         default y
797         help                                   << 
798           The kernel page allocator limits the << 
799           contiguous allocations. The limit is << 
800           defines the maximal power of two of  << 
801           allocated as a single contiguous blo << 
802           overriding the default setting when  << 
803           large blocks of physically contiguou << 
804                                                   2982 
805           Don't change if unsure.              !! 2983 config STACKTRACE_SUPPORT
                                                   >> 2984         bool
                                                   >> 2985         default y
                                                   >> 2986 
                                                   >> 2987 config PGTABLE_LEVELS
                                                   >> 2988         int
                                                   >> 2989         default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
                                                   >> 2990         default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
                                                   >> 2991         default 2
                                                   >> 2992 
                                                   >> 2993 config MIPS_AUTO_PFN_OFFSET
                                                   >> 2994         bool
                                                   >> 2995 
                                                   >> 2996 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
                                                   >> 2997 
                                                   >> 2998 config PCI_DRIVERS_GENERIC
                                                   >> 2999         select PCI_DOMAINS_GENERIC if PCI
                                                   >> 3000         bool
806                                                   3001 
                                                   >> 3002 config PCI_DRIVERS_LEGACY
                                                   >> 3003         def_bool !PCI_DRIVERS_GENERIC
                                                   >> 3004         select NO_GENERIC_PCI_IOPORT_MAP
                                                   >> 3005         select PCI_DOMAINS if PCI
                                                   >> 3006 
                                                   >> 3007 #
                                                   >> 3008 # ISA support is now enabled via select.  Too many systems still have the one
                                                   >> 3009 # or other ISA chip on the board that users don't know about so don't expect
                                                   >> 3010 # users to choose the right thing ...
                                                   >> 3011 #
                                                   >> 3012 config ISA
                                                   >> 3013         bool
                                                   >> 3014 
                                                   >> 3015 config TC
                                                   >> 3016         bool "TURBOchannel support"
                                                   >> 3017         depends on MACH_DECSTATION
                                                   >> 3018         help
                                                   >> 3019           TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
                                                   >> 3020           processors.  TURBOchannel programming specifications are available
                                                   >> 3021           at:
                                                   >> 3022           <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
                                                   >> 3023           and:
                                                   >> 3024           <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
                                                   >> 3025           Linux driver support status is documented at:
                                                   >> 3026           <http://www.linux-mips.org/wiki/DECstation>
                                                   >> 3027 
                                                   >> 3028 config MMU
                                                   >> 3029         bool
                                                   >> 3030         default y
                                                   >> 3031 
                                                   >> 3032 config ARCH_MMAP_RND_BITS_MIN
                                                   >> 3033         default 12 if 64BIT
                                                   >> 3034         default 8
                                                   >> 3035 
                                                   >> 3036 config ARCH_MMAP_RND_BITS_MAX
                                                   >> 3037         default 18 if 64BIT
                                                   >> 3038         default 15
                                                   >> 3039 
                                                   >> 3040 config ARCH_MMAP_RND_COMPAT_BITS_MIN
                                                   >> 3041         default 8
                                                   >> 3042 
                                                   >> 3043 config ARCH_MMAP_RND_COMPAT_BITS_MAX
                                                   >> 3044         default 15
                                                   >> 3045 
                                                   >> 3046 config I8253
                                                   >> 3047         bool
                                                   >> 3048         select CLKSRC_I8253
                                                   >> 3049         select CLKEVT_I8253
                                                   >> 3050         select MIPS_EXTERNAL_TIMER
807 endmenu                                           3051 endmenu
808                                                   3052 
                                                   >> 3053 config TRAD_SIGNALS
                                                   >> 3054         bool
                                                   >> 3055 
                                                   >> 3056 config MIPS32_COMPAT
                                                   >> 3057         bool
                                                   >> 3058 
                                                   >> 3059 config COMPAT
                                                   >> 3060         bool
                                                   >> 3061 
                                                   >> 3062 config MIPS32_O32
                                                   >> 3063         bool "Kernel support for o32 binaries"
                                                   >> 3064         depends on 64BIT
                                                   >> 3065         select ARCH_WANT_OLD_COMPAT_IPC
                                                   >> 3066         select COMPAT
                                                   >> 3067         select MIPS32_COMPAT
                                                   >> 3068         help
                                                   >> 3069           Select this option if you want to run o32 binaries.  These are pure
                                                   >> 3070           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
                                                   >> 3071           existing binaries are in this format.
                                                   >> 3072 
                                                   >> 3073           If unsure, say Y.
                                                   >> 3074 
                                                   >> 3075 config MIPS32_N32
                                                   >> 3076         bool "Kernel support for n32 binaries"
                                                   >> 3077         depends on 64BIT
                                                   >> 3078         select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
                                                   >> 3079         select COMPAT
                                                   >> 3080         select MIPS32_COMPAT
                                                   >> 3081         help
                                                   >> 3082           Select this option if you want to run n32 binaries.  These are
                                                   >> 3083           64-bit binaries using 32-bit quantities for addressing and certain
                                                   >> 3084           data that would normally be 64-bit.  They are used in special
                                                   >> 3085           cases.
                                                   >> 3086 
                                                   >> 3087           If unsure, say N.
                                                   >> 3088 
                                                   >> 3089 config CC_HAS_MNO_BRANCH_LIKELY
                                                   >> 3090         def_bool y
                                                   >> 3091         depends on $(cc-option,-mno-branch-likely)
                                                   >> 3092 
                                                   >> 3093 # https://github.com/llvm/llvm-project/issues/61045
                                                   >> 3094 config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
                                                   >> 3095         def_bool y if CC_IS_CLANG
                                                   >> 3096 
809 menu "Power management options"                   3097 menu "Power management options"
810                                                   3098 
811 config ARCH_HIBERNATION_POSSIBLE                  3099 config ARCH_HIBERNATION_POSSIBLE
812         def_bool y                                3100         def_bool y
                                                   >> 3101         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
                                                   >> 3102 
                                                   >> 3103 config ARCH_SUSPEND_POSSIBLE
                                                   >> 3104         def_bool y
                                                   >> 3105         depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
813                                                   3106 
814 source "kernel/power/Kconfig"                     3107 source "kernel/power/Kconfig"
815                                                   3108 
816 endmenu                                           3109 endmenu
                                                   >> 3110 
                                                   >> 3111 config MIPS_EXTERNAL_TIMER
                                                   >> 3112         bool
                                                   >> 3113 
                                                   >> 3114 menu "CPU Power Management"
                                                   >> 3115 
                                                   >> 3116 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
                                                   >> 3117 source "drivers/cpufreq/Kconfig"
                                                   >> 3118 endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
                                                   >> 3119 
                                                   >> 3120 source "drivers/cpuidle/Kconfig"
                                                   >> 3121 
                                                   >> 3122 endmenu
                                                   >> 3123 
                                                   >> 3124 source "arch/mips/kvm/Kconfig"
                                                   >> 3125 
                                                   >> 3126 source "arch/mips/vdso/Kconfig"
                                                      

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