arch/sh/Kconfig

   1 config SUPERH
   2         def_bool y
   3         select EXPERT
   4         select CLKDEV_LOOKUP
   5         select HAVE_IDE if HAS_IOPORT
   6         select HAVE_MEMBLOCK
   7         select HAVE_MEMBLOCK_NODE_MAP
   8         select ARCH_DISCARD_MEMBLOCK
   9         select HAVE_OPROFILE
  10         select HAVE_GENERIC_DMA_COHERENT
  11         select HAVE_ARCH_TRACEHOOK
  12         select HAVE_DMA_API_DEBUG
  13         select HAVE_DMA_ATTRS
  14         select HAVE_PERF_EVENTS
  15         select HAVE_DEBUG_BUGVERBOSE
  16         select ARCH_HAVE_CUSTOM_GPIO_H
  17         select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
  18         select PERF_USE_VMALLOC
  19         select HAVE_DEBUG_KMEMLEAK
  20         select HAVE_KERNEL_GZIP
  21         select HAVE_KERNEL_BZIP2
  22         select HAVE_KERNEL_LZMA
  23         select HAVE_KERNEL_XZ
  24         select HAVE_KERNEL_LZO
  25         select HAVE_UID16
  26         select ARCH_WANT_IPC_PARSE_VERSION
  27         select HAVE_SYSCALL_TRACEPOINTS
  28         select HAVE_REGS_AND_STACK_ACCESS_API
  29         select MAY_HAVE_SPARSE_IRQ
  30         select IRQ_FORCED_THREADING
  31         select RTC_LIB
  32         select GENERIC_ATOMIC64
  33         select GENERIC_IRQ_SHOW
  34         select GENERIC_SMP_IDLE_THREAD
  35         select GENERIC_IDLE_POLL_SETUP
  36         select GENERIC_CLOCKEVENTS
  37         select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
  38         select GENERIC_STRNCPY_FROM_USER
  39         select GENERIC_STRNLEN_USER
  40         select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
  41         select MODULES_USE_ELF_RELA
  42         select OLD_SIGSUSPEND
  43         select OLD_SIGACTION
  44         help
  45           The SuperH is a RISC processor targeted for use in embedded systems
  46           and consumer electronics; it was also used in the Sega Dreamcast
  47           gaming console.  The SuperH port has a home page at
  48           <http://www.linux-sh.org/>.
  49
  50 config SUPERH32
  51         def_bool ARCH = "sh"
  52         select HAVE_KPROBES
  53         select HAVE_KRETPROBES
  54         select HAVE_IOREMAP_PROT if MMU && !X2TLB
  55         select HAVE_FUNCTION_TRACER
  56         select HAVE_FTRACE_MCOUNT_RECORD
  57         select HAVE_DYNAMIC_FTRACE
  58         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  59         select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  60         select ARCH_WANT_IPC_PARSE_VERSION
  61         select HAVE_FUNCTION_GRAPH_TRACER
  62         select HAVE_ARCH_KGDB
  63         select HAVE_HW_BREAKPOINT
  64         select HAVE_MIXED_BREAKPOINTS_REGS
  65         select PERF_EVENTS
  66         select ARCH_HIBERNATION_POSSIBLE if MMU
  67         select SPARSE_IRQ
  68
  69 config SUPERH64
  70         def_bool ARCH = "sh64"
  71         select KALLSYMS
  72
  73 config ARCH_DEFCONFIG
  74         string
  75         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  76         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  77
  78 config RWSEM_GENERIC_SPINLOCK
  79         def_bool y
  80
  81 config RWSEM_XCHGADD_ALGORITHM
  82         bool
  83
  84 config GENERIC_BUG
  85         def_bool y
  86         depends on BUG && SUPERH32
  87
  88 config GENERIC_CSUM
  89         def_bool y
  90         depends on SUPERH64
  91
  92 config GENERIC_HWEIGHT
  93         def_bool y
  94
  95 config GENERIC_CALIBRATE_DELAY
  96         bool
  97
  98 config GENERIC_LOCKBREAK
  99         def_bool y
 100         depends on SMP && PREEMPT
 101
 102 config ARCH_SUSPEND_POSSIBLE
 103         def_bool n
 104
 105 config ARCH_HIBERNATION_POSSIBLE
 106         def_bool n
 107
 108 config SYS_SUPPORTS_APM_EMULATION
 109         bool
 110         select ARCH_SUSPEND_POSSIBLE
 111
 112 config SYS_SUPPORTS_HUGETLBFS
 113         bool
 114
 115 config SYS_SUPPORTS_SMP
 116         bool
 117
 118 config SYS_SUPPORTS_NUMA
 119         bool
 120
 121 config SYS_SUPPORTS_PCI
 122         bool
 123
 124 config SYS_SUPPORTS_CMT
 125         bool
 126
 127 config SYS_SUPPORTS_MTU2
 128         bool
 129
 130 config SYS_SUPPORTS_TMU
 131         bool
 132
 133 config STACKTRACE_SUPPORT
 134         def_bool y
 135
 136 config LOCKDEP_SUPPORT
 137         def_bool y
 138
 139 config HAVE_LATENCYTOP_SUPPORT
 140         def_bool y
 141
 142 config ARCH_HAS_ILOG2_U32
 143         def_bool n
 144
 145 config ARCH_HAS_ILOG2_U64
 146         def_bool n
 147
 148 config NO_IOPORT
 149         def_bool !PCI
 150         depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
 151                    !SH_HP6XX && !SH_SOLUTION_ENGINE
 152
 153 config IO_TRAPPED
 154         bool
 155
 156 config SWAP_IO_SPACE
 157         bool
 158
 159 config DMA_COHERENT
 160         bool
 161
 162 config DMA_NONCOHERENT
 163         def_bool !DMA_COHERENT
 164
 165 config NEED_DMA_MAP_STATE
 166         def_bool DMA_NONCOHERENT
 167
 168 config NEED_SG_DMA_LENGTH
 169         def_bool y
 170
 171 source "init/Kconfig"
 172
 173 source "kernel/Kconfig.freezer"
 174
 175 menu "System type"
 176
 177 #
 178 # Processor families
 179 #
 180 config CPU_SH2
 181         bool
 182
 183 config CPU_SH2A
 184         bool
 185         select CPU_SH2
 186         select UNCACHED_MAPPING
 187
 188 config CPU_SH3
 189         bool
 190         select CPU_HAS_INTEVT
 191         select CPU_HAS_SR_RB
 192         select SYS_SUPPORTS_TMU
 193
 194 config CPU_SH4
 195         bool
 196         select CPU_HAS_INTEVT
 197         select CPU_HAS_SR_RB
 198         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 199         select SYS_SUPPORTS_TMU
 200         select SYS_SUPPORTS_HUGETLBFS if MMU
 201
 202 config CPU_SH4A
 203         bool
 204         select CPU_SH4
 205
 206 config CPU_SH4AL_DSP
 207         bool
 208         select CPU_SH4A
 209         select CPU_HAS_DSP
 210
 211 config CPU_SH5
 212         bool
 213         select CPU_HAS_FPU
 214         select SYS_SUPPORTS_TMU
 215         select SYS_SUPPORTS_HUGETLBFS if MMU
 216
 217 config CPU_SHX2
 218         bool
 219
 220 config CPU_SHX3
 221         bool
 222         select DMA_COHERENT
 223         select SYS_SUPPORTS_SMP
 224         select SYS_SUPPORTS_NUMA
 225
 226 config ARCH_SHMOBILE
 227         bool
 228         select ARCH_SUSPEND_POSSIBLE
 229         select PM
 230         select PM_RUNTIME
 231
 232 config CPU_HAS_PMU
 233        depends on CPU_SH4 || CPU_SH4A
 234        default y
 235        bool
 236
 237 if SUPERH32
 238
 239 choice
 240         prompt "Processor sub-type selection"
 241
 242 #
 243 # Processor subtypes
 244 #
 245
 246 # SH-2 Processor Support
 247
 248 config CPU_SUBTYPE_SH7619
 249         bool "Support SH7619 processor"
 250         select CPU_SH2
 251         select SYS_SUPPORTS_CMT
 252
 253 # SH-2A Processor Support
 254
 255 config CPU_SUBTYPE_SH7201
 256         bool "Support SH7201 processor"
 257         select CPU_SH2A
 258         select CPU_HAS_FPU
 259         select SYS_SUPPORTS_MTU2
 260
 261 config CPU_SUBTYPE_SH7203
 262         bool "Support SH7203 processor"
 263         select CPU_SH2A
 264         select CPU_HAS_FPU
 265         select SYS_SUPPORTS_CMT
 266         select SYS_SUPPORTS_MTU2
 267         select ARCH_WANT_OPTIONAL_GPIOLIB
 268         select PINCTRL
 269
 270 config CPU_SUBTYPE_SH7206
 271         bool "Support SH7206 processor"
 272         select CPU_SH2A
 273         select SYS_SUPPORTS_CMT
 274         select SYS_SUPPORTS_MTU2
 275
 276 config CPU_SUBTYPE_SH7263
 277         bool "Support SH7263 processor"
 278         select CPU_SH2A
 279         select CPU_HAS_FPU
 280         select SYS_SUPPORTS_CMT
 281         select SYS_SUPPORTS_MTU2
 282
 283 config CPU_SUBTYPE_SH7264
 284         bool "Support SH7264 processor"
 285         select CPU_SH2A
 286         select CPU_HAS_FPU
 287         select SYS_SUPPORTS_CMT
 288         select SYS_SUPPORTS_MTU2
 289         select PINCTRL
 290
 291 config CPU_SUBTYPE_SH7269
 292         bool "Support SH7269 processor"
 293         select CPU_SH2A
 294         select CPU_HAS_FPU
 295         select SYS_SUPPORTS_CMT
 296         select SYS_SUPPORTS_MTU2
 297         select PINCTRL
 298
 299 config CPU_SUBTYPE_MXG
 300         bool "Support MX-G processor"
 301         select CPU_SH2A
 302         select SYS_SUPPORTS_MTU2
 303         help
 304           Select MX-G if running on an R8A03022BG part.
 305
 306 # SH-3 Processor Support
 307
 308 config CPU_SUBTYPE_SH7705
 309         bool "Support SH7705 processor"
 310         select CPU_SH3
 311
 312 config CPU_SUBTYPE_SH7706
 313         bool "Support SH7706 processor"
 314         select CPU_SH3
 315         help
 316           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 317
 318 config CPU_SUBTYPE_SH7707
 319         bool "Support SH7707 processor"
 320         select CPU_SH3
 321         help
 322           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 323
 324 config CPU_SUBTYPE_SH7708
 325         bool "Support SH7708 processor"
 326         select CPU_SH3
 327         help
 328           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 329           if you have a 100 Mhz SH-3 HD6417708R CPU.
 330
 331 config CPU_SUBTYPE_SH7709
 332         bool "Support SH7709 processor"
 333         select CPU_SH3
 334         help
 335           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 336
 337 config CPU_SUBTYPE_SH7710
 338         bool "Support SH7710 processor"
 339         select CPU_SH3
 340         select CPU_HAS_DSP
 341         help
 342           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 343
 344 config CPU_SUBTYPE_SH7712
 345         bool "Support SH7712 processor"
 346         select CPU_SH3
 347         select CPU_HAS_DSP
 348         help
 349           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 350
 351 config CPU_SUBTYPE_SH7720
 352         bool "Support SH7720 processor"
 353         select CPU_SH3
 354         select CPU_HAS_DSP
 355         select SYS_SUPPORTS_CMT
 356         select ARCH_WANT_OPTIONAL_GPIOLIB
 357         select USB_ARCH_HAS_OHCI
 358         select USB_OHCI_SH if USB_OHCI_HCD
 359         select PINCTRL
 360         help
 361           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 362
 363 config CPU_SUBTYPE_SH7721
 364         bool "Support SH7721 processor"
 365         select CPU_SH3
 366         select CPU_HAS_DSP
 367         select SYS_SUPPORTS_CMT
 368         select USB_ARCH_HAS_OHCI
 369         select USB_OHCI_SH if USB_OHCI_HCD
 370         help
 371           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 372
 373 # SH-4 Processor Support
 374
 375 config CPU_SUBTYPE_SH7750
 376         bool "Support SH7750 processor"
 377         select CPU_SH4
 378         help
 379           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 380
 381 config CPU_SUBTYPE_SH7091
 382         bool "Support SH7091 processor"
 383         select CPU_SH4
 384         help
 385           Select SH7091 if you have an SH-4 based Sega device (such as
 386           the Dreamcast, Naomi, and Naomi 2).
 387
 388 config CPU_SUBTYPE_SH7750R
 389         bool "Support SH7750R processor"
 390         select CPU_SH4
 391
 392 config CPU_SUBTYPE_SH7750S
 393         bool "Support SH7750S processor"
 394         select CPU_SH4
 395
 396 config CPU_SUBTYPE_SH7751
 397         bool "Support SH7751 processor"
 398         select CPU_SH4
 399         help
 400           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 401           or if you have a HD6417751R CPU.
 402
 403 config CPU_SUBTYPE_SH7751R
 404         bool "Support SH7751R processor"
 405         select CPU_SH4
 406
 407 config CPU_SUBTYPE_SH7760
 408         bool "Support SH7760 processor"
 409         select CPU_SH4
 410
 411 config CPU_SUBTYPE_SH4_202
 412         bool "Support SH4-202 processor"
 413         select CPU_SH4
 414
 415 # SH-4A Processor Support
 416
 417 config CPU_SUBTYPE_SH7723
 418         bool "Support SH7723 processor"
 419         select CPU_SH4A
 420         select CPU_SHX2
 421         select ARCH_SHMOBILE
 422         select ARCH_SPARSEMEM_ENABLE
 423         select SYS_SUPPORTS_CMT
 424         select ARCH_WANT_OPTIONAL_GPIOLIB
 425         select PINCTRL
 426         help
 427           Select SH7723 if you have an SH-MobileR2 CPU.
 428
 429 config CPU_SUBTYPE_SH7724
 430         bool "Support SH7724 processor"
 431         select CPU_SH4A
 432         select CPU_SHX2
 433         select ARCH_SHMOBILE
 434         select ARCH_SPARSEMEM_ENABLE
 435         select SYS_SUPPORTS_CMT
 436         select ARCH_WANT_OPTIONAL_GPIOLIB
 437         select PINCTRL
 438         help
 439           Select SH7724 if you have an SH-MobileR2R CPU.
 440
 441 config CPU_SUBTYPE_SH7734
 442         bool "Support SH7734 processor"
 443         select CPU_SH4A
 444         select CPU_SHX2
 445         select ARCH_WANT_OPTIONAL_GPIOLIB
 446         select USB_ARCH_HAS_OHCI
 447         select USB_ARCH_HAS_EHCI
 448         select PINCTRL
 449         help
 450           Select SH7734 if you have a SH4A SH7734 CPU.
 451
 452 config CPU_SUBTYPE_SH7757
 453         bool "Support SH7757 processor"
 454         select CPU_SH4A
 455         select CPU_SHX2
 456         select ARCH_WANT_OPTIONAL_GPIOLIB
 457         select USB_ARCH_HAS_OHCI
 458         select USB_ARCH_HAS_EHCI
 459         select PINCTRL
 460         help
 461           Select SH7757 if you have a SH4A SH7757 CPU.
 462
 463 config CPU_SUBTYPE_SH7763
 464         bool "Support SH7763 processor"
 465         select CPU_SH4A
 466         select USB_ARCH_HAS_OHCI
 467         select USB_OHCI_SH if USB_OHCI_HCD
 468         help
 469           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 470
 471 config CPU_SUBTYPE_SH7770
 472         bool "Support SH7770 processor"
 473         select CPU_SH4A
 474
 475 config CPU_SUBTYPE_SH7780
 476         bool "Support SH7780 processor"
 477         select CPU_SH4A
 478
 479 config CPU_SUBTYPE_SH7785
 480         bool "Support SH7785 processor"
 481         select CPU_SH4A
 482         select CPU_SHX2
 483         select ARCH_SPARSEMEM_ENABLE
 484         select SYS_SUPPORTS_NUMA
 485         select ARCH_WANT_OPTIONAL_GPIOLIB
 486         select PINCTRL
 487
 488 config CPU_SUBTYPE_SH7786
 489         bool "Support SH7786 processor"
 490         select CPU_SH4A
 491         select CPU_SHX3
 492         select CPU_HAS_PTEAEX
 493         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 494         select ARCH_WANT_OPTIONAL_GPIOLIB
 495         select USB_ARCH_HAS_OHCI
 496         select USB_OHCI_SH if USB_OHCI_HCD
 497         select USB_ARCH_HAS_EHCI
 498         select USB_EHCI_SH if USB_EHCI_HCD
 499         select PINCTRL
 500
 501 config CPU_SUBTYPE_SHX3
 502         bool "Support SH-X3 processor"
 503         select CPU_SH4A
 504         select CPU_SHX3
 505         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 506         select ARCH_REQUIRE_GPIOLIB
 507         select PINCTRL
 508
 509 # SH4AL-DSP Processor Support
 510
 511 config CPU_SUBTYPE_SH7343
 512         bool "Support SH7343 processor"
 513         select CPU_SH4AL_DSP
 514         select ARCH_SHMOBILE
 515         select SYS_SUPPORTS_CMT
 516
 517 config CPU_SUBTYPE_SH7722
 518         bool "Support SH7722 processor"
 519         select CPU_SH4AL_DSP
 520         select CPU_SHX2
 521         select ARCH_SHMOBILE
 522         select ARCH_SPARSEMEM_ENABLE
 523         select SYS_SUPPORTS_NUMA
 524         select SYS_SUPPORTS_CMT
 525         select ARCH_WANT_OPTIONAL_GPIOLIB
 526         select PINCTRL
 527
 528 config CPU_SUBTYPE_SH7366
 529         bool "Support SH7366 processor"
 530         select CPU_SH4AL_DSP
 531         select CPU_SHX2
 532         select ARCH_SHMOBILE
 533         select ARCH_SPARSEMEM_ENABLE
 534         select SYS_SUPPORTS_NUMA
 535         select SYS_SUPPORTS_CMT
 536
 537 endchoice
 538
 539 endif
 540
 541 if SUPERH64
 542
 543 choice
 544         prompt "Processor sub-type selection"
 545
 546 # SH-5 Processor Support
 547
 548 config CPU_SUBTYPE_SH5_101
 549         bool "Support SH5-101 processor"
 550         select CPU_SH5
 551
 552 config CPU_SUBTYPE_SH5_103
 553         bool "Support SH5-103 processor"
 554         select CPU_SH5
 555
 556 endchoice
 557
 558 endif
 559
 560 source "arch/sh/mm/Kconfig"
 561
 562 source "arch/sh/Kconfig.cpu"
 563
 564 source "arch/sh/boards/Kconfig"
 565
 566 menu "Timer and clock configuration"
 567
 568 config SH_TIMER_TMU
 569         bool "TMU timer driver"
 570         depends on SYS_SUPPORTS_TMU
 571         default y
 572         help
 573           This enables the build of the TMU timer driver.
 574
 575 config SH_TIMER_CMT
 576         bool "CMT timer driver"
 577         depends on SYS_SUPPORTS_CMT
 578         default y
 579         help
 580           This enables build of the CMT timer driver.
 581
 582 config SH_TIMER_MTU2
 583         bool "MTU2 timer driver"
 584         depends on SYS_SUPPORTS_MTU2
 585         default y
 586         help
 587           This enables build of the MTU2 timer driver.
 588
 589 config SH_PCLK_FREQ
 590         int "Peripheral clock frequency (in Hz)"
 591         depends on SH_CLK_CPG_LEGACY
 592         default "31250000" if CPU_SUBTYPE_SH7619
 593         default "33333333" if CPU_SUBTYPE_SH7770 || \
 594                               CPU_SUBTYPE_SH7760 || \
 595                               CPU_SUBTYPE_SH7705 || \
 596                               CPU_SUBTYPE_SH7203 || \
 597                               CPU_SUBTYPE_SH7206 || \
 598                               CPU_SUBTYPE_SH7263 || \
 599                               CPU_SUBTYPE_MXG
 600         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 601         default "66000000" if CPU_SUBTYPE_SH4_202
 602         default "50000000"
 603         help
 604           This option is used to specify the peripheral clock frequency.
 605           This is necessary for determining the reference clock value on
 606           platforms lacking an RTC.
 607
 608 config SH_CLK_CPG
 609         def_bool y
 610
 611 config SH_CLK_CPG_LEGACY
 612         depends on SH_CLK_CPG
 613         def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
 614                       !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
 615                       !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
 616                       !CPU_SUBTYPE_SH7269
 617
 618 endmenu
 619
 620 menu "CPU Frequency scaling"
 621 source "drivers/cpufreq/Kconfig"
 622 endmenu
 623
 624 source "arch/sh/drivers/Kconfig"
 625
 626 endmenu
 627
 628 menu "Kernel features"
 629
 630 source kernel/Kconfig.hz
 631
 632 config KEXEC
 633         bool "kexec system call (EXPERIMENTAL)"
 634         depends on SUPERH32 && MMU
 635         help
 636           kexec is a system call that implements the ability to shutdown your
 637           current kernel, and to start another kernel.  It is like a reboot
 638           but it is independent of the system firmware.  And like a reboot
 639           you can start any kernel with it, not just Linux.
 640
 641           The name comes from the similarity to the exec system call.
 642
 643           It is an ongoing process to be certain the hardware in a machine
 644           is properly shutdown, so do not be surprised if this code does not
 645           initially work for you.  As of this writing the exact hardware
 646           interface is strongly in flux, so no good recommendation can be
 647           made.
 648
 649 config CRASH_DUMP
 650         bool "kernel crash dumps (EXPERIMENTAL)"
 651         depends on SUPERH32 && BROKEN_ON_SMP
 652         help
 653           Generate crash dump after being started by kexec.
 654           This should be normally only set in special crash dump kernels
 655           which are loaded in the main kernel with kexec-tools into
 656           a specially reserved region and then later executed after
 657           a crash by kdump/kexec. The crash dump kernel must be compiled
 658           to a memory address not used by the main kernel using
 659           PHYSICAL_START.
 660
 661           For more details see Documentation/kdump/kdump.txt
 662
 663 config KEXEC_JUMP
 664         bool "kexec jump (EXPERIMENTAL)"
 665         depends on SUPERH32 && KEXEC && HIBERNATION
 666         help
 667           Jump between original kernel and kexeced kernel and invoke
 668           code via KEXEC
 669
 670 config PHYSICAL_START
 671         hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
 672         default MEMORY_START
 673         ---help---
 674           This gives the physical address where the kernel is loaded
 675           and is ordinarily the same as MEMORY_START.
 676
 677           Different values are primarily used in the case of kexec on panic
 678           where the fail safe kernel needs to run at a different address
 679           than the panic-ed kernel.
 680
 681 config SECCOMP
 682         bool "Enable seccomp to safely compute untrusted bytecode"
 683         depends on PROC_FS
 684         help
 685           This kernel feature is useful for number crunching applications
 686           that may need to compute untrusted bytecode during their
 687           execution. By using pipes or other transports made available to
 688           the process as file descriptors supporting the read/write
 689           syscalls, it's possible to isolate those applications in
 690           their own address space using seccomp. Once seccomp is
 691           enabled via prctl, it cannot be disabled and the task is only
 692           allowed to execute a few safe syscalls defined by each seccomp
 693           mode.
 694
 695           If unsure, say N.
 696
 697 config CC_STACKPROTECTOR
 698         bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
 699         depends on SUPERH32
 700         help
 701           This option turns on the -fstack-protector GCC feature. This
 702           feature puts, at the beginning of functions, a canary value on
 703           the stack just before the return address, and validates
 704           the value just before actually returning.  Stack based buffer
 705           overflows (that need to overwrite this return address) now also
 706           overwrite the canary, which gets detected and the attack is then
 707           neutralized via a kernel panic.
 708
 709           This feature requires gcc version 4.2 or above.
 710
 711 config SMP
 712         bool "Symmetric multi-processing support"
 713         depends on SYS_SUPPORTS_SMP
 714         ---help---
 715           This enables support for systems with more than one CPU. If you have
 716           a system with only one CPU, like most personal computers, say N. If
 717           you have a system with more than one CPU, say Y.
 718
 719           If you say N here, the kernel will run on single and multiprocessor
 720           machines, but will use only one CPU of a multiprocessor machine. If
 721           you say Y here, the kernel will run on many, but not all,
 722           singleprocessor machines. On a singleprocessor machine, the kernel
 723           will run faster if you say N here.
 724
 725           People using multiprocessor machines who say Y here should also say
 726           Y to "Enhanced Real Time Clock Support", below.
 727
 728           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 729           available at <http://www.tldp.org/docs.html#howto>.
 730
 731           If you don't know what to do here, say N.
 732
 733 config NR_CPUS
 734         int "Maximum number of CPUs (2-32)"
 735         range 2 32
 736         depends on SMP
 737         default "4" if CPU_SUBTYPE_SHX3
 738         default "2"
 739         help
 740           This allows you to specify the maximum number of CPUs which this
 741           kernel will support.  The maximum supported value is 32 and the
 742           minimum value which makes sense is 2.
 743
 744           This is purely to save memory - each supported CPU adds
 745           approximately eight kilobytes to the kernel image.
 746
 747 config HOTPLUG_CPU
 748         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 749         depends on SMP
 750         help
 751           Say Y here to experiment with turning CPUs off and on.  CPUs
 752           can be controlled through /sys/devices/system/cpu.
 753
 754 source "kernel/Kconfig.preempt"
 755
 756 config GUSA
 757         def_bool y
 758         depends on !SMP && SUPERH32
 759         help
 760           This enables support for gUSA (general UserSpace Atomicity).
 761           This is the default implementation for both UP and non-ll/sc
 762           CPUs, and is used by the libc, amongst others.
 763
 764           For additional information, design information can be found
 765           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 766
 767           This should only be disabled for special cases where alternate
 768           atomicity implementations exist.
 769
 770 config GUSA_RB
 771         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 772         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 773         help
 774           Enabling this option will allow the kernel to implement some
 775           atomic operations using a software implementation of load-locked/
 776           store-conditional (LLSC). On machines which do not have hardware
 777           LLSC, this should be more efficient than the other alternative of
 778           disabling interrupts around the atomic sequence.
 779
 780 config HW_PERF_EVENTS
 781         bool "Enable hardware performance counter support for perf events"
 782         depends on PERF_EVENTS && CPU_HAS_PMU
 783         default y
 784         help
 785           Enable hardware performance counter support for perf events. If
 786           disabled, perf events will use software events only.
 787
 788 source "drivers/sh/Kconfig"
 789
 790 endmenu
 791
 792 menu "Boot options"
 793
 794 config ZERO_PAGE_OFFSET
 795         hex
 796         default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
 797                                 SH_7751_SOLUTION_ENGINE
 798         default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
 799         default "0x00002000" if PAGE_SIZE_8KB
 800         default "0x00001000"
 801         help
 802           This sets the default offset of zero page.
 803
 804 config BOOT_LINK_OFFSET
 805         hex
 806         default "0x00210000" if SH_SHMIN
 807         default "0x00400000" if SH_CAYMAN
 808         default "0x00810000" if SH_7780_SOLUTION_ENGINE
 809         default "0x009e0000" if SH_TITAN
 810         default "0x01800000" if SH_SDK7780
 811         default "0x02000000" if SH_EDOSK7760
 812         default "0x00800000"
 813         help
 814           This option allows you to set the link address offset of the zImage.
 815           This can be useful if you are on a board which has a small amount of
 816           memory.
 817
 818 config ENTRY_OFFSET
 819         hex
 820         default "0x00001000" if PAGE_SIZE_4KB
 821         default "0x00002000" if PAGE_SIZE_8KB
 822         default "0x00004000" if PAGE_SIZE_16KB
 823         default "0x00010000" if PAGE_SIZE_64KB
 824         default "0x00000000"
 825
 826 config ROMIMAGE_MMCIF
 827         bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
 828         depends on CPU_SUBTYPE_SH7724
 829         help
 830           Say Y here to include experimental MMCIF loading code in
 831           romImage. With this enabled it is possible to write the romImage
 832           kernel image to an MMC card and boot the kernel straight from
 833           the reset vector. At reset the processor Mask ROM will load the
 834           first part of the romImage which in turn loads the rest the kernel
 835           image to RAM using the MMCIF hardware block.
 836
 837 choice
 838         prompt "Kernel command line"
 839         optional
 840         default CMDLINE_OVERWRITE
 841         help
 842           Setting this option allows the kernel command line arguments
 843           to be set.
 844
 845 config CMDLINE_OVERWRITE
 846         bool "Overwrite bootloader kernel arguments"
 847         help
 848           Given string will overwrite any arguments passed in by
 849           a bootloader.
 850
 851 config CMDLINE_EXTEND
 852         bool "Extend bootloader kernel arguments"
 853         help
 854           Given string will be concatenated with arguments passed in
 855           by a bootloader.
 856
 857 endchoice
 858
 859 config CMDLINE
 860         string "Kernel command line arguments string"
 861         depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
 862         default "console=ttySC1,115200"
 863
 864 endmenu
 865
 866 menu "Bus options"
 867
 868 config SUPERHYWAY
 869         tristate "SuperHyway Bus support"
 870         depends on CPU_SUBTYPE_SH4_202
 871
 872 config MAPLE
 873         bool "Maple Bus support"
 874         depends on SH_DREAMCAST
 875         help
 876          The Maple Bus is SEGA's serial communication bus for peripherals
 877          on the Dreamcast. Without this bus support you won't be able to
 878          get your Dreamcast keyboard etc to work, so most users
 879          probably want to say 'Y' here, unless you are only using the
 880          Dreamcast with a serial line terminal or a remote network
 881          connection.
 882
 883 config PCI
 884         bool "PCI support"
 885         depends on SYS_SUPPORTS_PCI
 886         select PCI_DOMAINS
 887         select GENERIC_PCI_IOMAP
 888         select NO_GENERIC_PCI_IOPORT_MAP
 889         help
 890           Find out whether you have a PCI motherboard. PCI is the name of a
 891           bus system, i.e. the way the CPU talks to the other stuff inside
 892           your box. If you have PCI, say Y, otherwise N.
 893
 894 config PCI_DOMAINS
 895         bool
 896
 897 source "drivers/pci/pcie/Kconfig"
 898
 899 source "drivers/pci/Kconfig"
 900
 901 source "drivers/pcmcia/Kconfig"
 902
 903 source "drivers/pci/hotplug/Kconfig"
 904
 905 endmenu
 906
 907 menu "Executable file formats"
 908
 909 source "fs/Kconfig.binfmt"
 910
 911 endmenu
 912
 913 menu "Power management options (EXPERIMENTAL)"
 914
 915 source "kernel/power/Kconfig"
 916
 917 source "drivers/cpuidle/Kconfig"
 918
 919 endmenu
 920
 921 source "net/Kconfig"
 922
 923 source "drivers/Kconfig"
 924
 925 source "fs/Kconfig"
 926
 927 source "arch/sh/Kconfig.debug"
 928
 929 source "security/Kconfig"
 930
 931 source "crypto/Kconfig"
 932
 933 source "lib/Kconfig"