arch/powerpc/Kconfig

   1 source "arch/powerpc/platforms/Kconfig.cputype"
   2
   3 config PPC32
   4         bool
   5         default y if !PPC64
   6
   7 config 32BIT
   8         bool
   9         default y if PPC32
  10
  11 config 64BIT
  12         bool
  13         default y if PPC64
  14
  15 config WORD_SIZE
  16         int
  17         default 64 if PPC64
  18         default 32 if !PPC64
  19
  20 config ARCH_PHYS_ADDR_T_64BIT
  21        def_bool PPC64 || PHYS_64BIT
  22
  23 config ARCH_DMA_ADDR_T_64BIT
  24         def_bool ARCH_PHYS_ADDR_T_64BIT
  25
  26 config MMU
  27         bool
  28         default y
  29
  30 config HAVE_SETUP_PER_CPU_AREA
  31         def_bool PPC64
  32
  33 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  34         def_bool PPC64
  35
  36 config NR_IRQS
  37         int "Number of virtual interrupt numbers"
  38         range 32 32768
  39         default "512"
  40         help
  41           This defines the number of virtual interrupt numbers the kernel
  42           can manage. Virtual interrupt numbers are what you see in
  43           /proc/interrupts. If you configure your system to have too few,
  44           drivers will fail to load or worse - handle with care.
  45
  46 config STACKTRACE_SUPPORT
  47         bool
  48         default y
  49
  50 config HAVE_LATENCYTOP_SUPPORT
  51         def_bool y
  52
  53 config TRACE_IRQFLAGS_SUPPORT
  54         bool
  55         default y
  56
  57 config LOCKDEP_SUPPORT
  58         bool
  59         default y
  60
  61 config RWSEM_GENERIC_SPINLOCK
  62         bool
  63
  64 config RWSEM_XCHGADD_ALGORITHM
  65         bool
  66         default y
  67
  68 config GENERIC_LOCKBREAK
  69         bool
  70         default y
  71         depends on SMP && PREEMPT
  72
  73 config ARCH_HAS_ILOG2_U32
  74         bool
  75         default y
  76
  77 config ARCH_HAS_ILOG2_U64
  78         bool
  79         default y if 64BIT
  80
  81 config GENERIC_HWEIGHT
  82         bool
  83         default y
  84
  85 config GENERIC_GPIO
  86         bool
  87         help
  88           Generic GPIO API support
  89
  90 config PPC
  91         bool
  92         default y
  93         select OF
  94         select OF_EARLY_FLATTREE
  95         select HAVE_FTRACE_MCOUNT_RECORD
  96         select HAVE_DYNAMIC_FTRACE
  97         select HAVE_FUNCTION_TRACER
  98         select HAVE_FUNCTION_GRAPH_TRACER
  99         select SYSCTL_EXCEPTION_TRACE
 100         select ARCH_WANT_OPTIONAL_GPIOLIB
 101         select HAVE_VIRT_TO_BUS if !PPC64
 102         select HAVE_IDE
 103         select HAVE_IOREMAP_PROT
 104         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 105         select HAVE_KPROBES
 106         select HAVE_ARCH_KGDB
 107         select HAVE_KRETPROBES
 108         select HAVE_ARCH_TRACEHOOK
 109         select HAVE_MEMBLOCK
 110         select HAVE_MEMBLOCK_NODE_MAP
 111         select HAVE_DMA_ATTRS
 112         select HAVE_DMA_API_DEBUG
 113         select USE_GENERIC_SMP_HELPERS if SMP
 114         select HAVE_OPROFILE
 115         select HAVE_DEBUG_KMEMLEAK
 116         select HAVE_SYSCALL_WRAPPERS if PPC64
 117         select GENERIC_ATOMIC64 if PPC32
 118         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 119         select HAVE_PERF_EVENTS
 120         select HAVE_REGS_AND_STACK_ACCESS_API
 121         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 122         select HAVE_GENERIC_HARDIRQS
 123         select ARCH_WANT_IPC_PARSE_VERSION
 124         select SPARSE_IRQ
 125         select IRQ_DOMAIN
 126         select GENERIC_IRQ_SHOW
 127         select GENERIC_IRQ_SHOW_LEVEL
 128         select IRQ_FORCED_THREADING
 129         select HAVE_RCU_TABLE_FREE if SMP
 130         select HAVE_SYSCALL_TRACEPOINTS
 131         select HAVE_BPF_JIT if PPC64
 132         select HAVE_ARCH_JUMP_LABEL
 133         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 134         select GENERIC_SMP_IDLE_THREAD
 135         select GENERIC_CMOS_UPDATE
 136         select GENERIC_TIME_VSYSCALL_OLD
 137         select GENERIC_CLOCKEVENTS
 138         select GENERIC_STRNCPY_FROM_USER
 139         select GENERIC_STRNLEN_USER
 140         select HAVE_MOD_ARCH_SPECIFIC
 141         select MODULES_USE_ELF_RELA
 142         select CLONE_BACKWARDS
 143         select ARCH_USE_BUILTIN_BSWAP
 144         select OLD_SIGSUSPEND
 145         select OLD_SIGACTION if PPC32
 146
 147 config EARLY_PRINTK
 148         bool
 149         default y
 150
 151 config COMPAT
 152         bool
 153         default y if PPC64
 154         select COMPAT_BINFMT_ELF
 155         select ARCH_WANT_OLD_COMPAT_IPC
 156         select COMPAT_OLD_SIGACTION
 157
 158 config SYSVIPC_COMPAT
 159         bool
 160         depends on COMPAT && SYSVIPC
 161         default y
 162
 163 # All PPC32s use generic nvram driver through ppc_md
 164 config GENERIC_NVRAM
 165         bool
 166         default y if PPC32
 167
 168 config SCHED_OMIT_FRAME_POINTER
 169         bool
 170         default y
 171
 172 config ARCH_MAY_HAVE_PC_FDC
 173         bool
 174         default !PPC_PSERIES || PCI
 175
 176 config PPC_OF
 177         def_bool y
 178
 179 config PPC_UDBG_16550
 180         bool
 181         default n
 182
 183 config GENERIC_TBSYNC
 184         bool
 185         default y if PPC32 && SMP
 186         default n
 187
 188 config AUDIT_ARCH
 189         bool
 190         default y
 191
 192 config GENERIC_BUG
 193         bool
 194         default y
 195         depends on BUG
 196
 197 config SYS_SUPPORTS_APM_EMULATION
 198         default y if PMAC_APM_EMU
 199         bool
 200
 201 config EPAPR_BOOT
 202         bool
 203         help
 204           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 205         default n
 206
 207 config DEFAULT_UIMAGE
 208         bool
 209         help
 210           Used to allow a board to specify it wants a uImage built by default
 211         default n
 212
 213 config REDBOOT
 214         bool
 215
 216 config ARCH_HIBERNATION_POSSIBLE
 217         bool
 218         default y
 219
 220 config ARCH_SUSPEND_POSSIBLE
 221         def_bool y
 222         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 223                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
 224                    || 44x || 40x
 225
 226 config PPC_DCR_NATIVE
 227         bool
 228         default n
 229
 230 config PPC_DCR_MMIO
 231         bool
 232         default n
 233
 234 config PPC_DCR
 235         bool
 236         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 237         default y
 238
 239 config PPC_OF_PLATFORM_PCI
 240         bool
 241         depends on PCI
 242         depends on PPC64 # not supported on 32 bits yet
 243         default n
 244
 245 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 246         def_bool y
 247
 248 config ARCH_SUPPORTS_UPROBES
 249         def_bool y
 250
 251 config PPC_ADV_DEBUG_REGS
 252         bool
 253         depends on 40x || BOOKE
 254         default y
 255
 256 config PPC_ADV_DEBUG_IACS
 257         int
 258         depends on PPC_ADV_DEBUG_REGS
 259         default 4 if 44x
 260         default 2
 261
 262 config PPC_ADV_DEBUG_DACS
 263         int
 264         depends on PPC_ADV_DEBUG_REGS
 265         default 2
 266
 267 config PPC_ADV_DEBUG_DVCS
 268         int
 269         depends on PPC_ADV_DEBUG_REGS
 270         default 2 if 44x
 271         default 0
 272
 273 config PPC_ADV_DEBUG_DAC_RANGE
 274         bool
 275         depends on PPC_ADV_DEBUG_REGS && 44x
 276         default y
 277
 278 config PPC_EMULATE_SSTEP
 279         bool
 280         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
 281
 282 source "init/Kconfig"
 283
 284 source "kernel/Kconfig.freezer"
 285
 286 source "arch/powerpc/sysdev/Kconfig"
 287 source "arch/powerpc/platforms/Kconfig"
 288
 289 menu "Kernel options"
 290
 291 config HIGHMEM
 292         bool "High memory support"
 293         depends on PPC32
 294
 295 source kernel/Kconfig.hz
 296 source kernel/Kconfig.preempt
 297 source "fs/Kconfig.binfmt"
 298
 299 config HUGETLB_PAGE_SIZE_VARIABLE
 300         bool
 301         depends on HUGETLB_PAGE
 302         default y
 303
 304 config MATH_EMULATION
 305         bool "Math emulation"
 306         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 307         ---help---
 308           Some PowerPC chips designed for embedded applications do not have
 309           a floating-point unit and therefore do not implement the
 310           floating-point instructions in the PowerPC instruction set.  If you
 311           say Y here, the kernel will include code to emulate a floating-point
 312           unit, which will allow programs that use floating-point
 313           instructions to run.
 314
 315 config PPC_TRANSACTIONAL_MEM
 316        bool "Transactional Memory support for POWERPC"
 317        depends on PPC_BOOK3S_64
 318        depends on SMP
 319        default n
 320        ---help---
 321          Support user-mode Transactional Memory on POWERPC.
 322
 323 config 8XX_MINIMAL_FPEMU
 324         bool "Minimal math emulation for 8xx"
 325         depends on 8xx && !MATH_EMULATION
 326         help
 327           Older arch/ppc kernels still emulated a few floating point
 328           instructions such as load and store, even when full math
 329           emulation is disabled.  Say "Y" here if you want to preserve
 330           this behavior.
 331
 332           It is recommended that you build a soft-float userspace instead.
 333
 334 config IOMMU_HELPER
 335         def_bool PPC64
 336
 337 config SWIOTLB
 338         bool "SWIOTLB support"
 339         default n
 340         select IOMMU_HELPER
 341         ---help---
 342           Support for IO bounce buffering for systems without an IOMMU.
 343           This allows us to DMA to the full physical address space on
 344           platforms where the size of a physical address is larger
 345           than the bus address.  Not all platforms support this.
 346
 347 config HOTPLUG_CPU
 348         bool "Support for enabling/disabling CPUs"
 349         depends on SMP && HOTPLUG && (PPC_PSERIES || \
 350         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
 351         ---help---
 352           Say Y here to be able to disable and re-enable individual
 353           CPUs at runtime on SMP machines.
 354
 355           Say N if you are unsure.
 356
 357 config ARCH_CPU_PROBE_RELEASE
 358         def_bool y
 359         depends on HOTPLUG_CPU
 360
 361 config ARCH_ENABLE_MEMORY_HOTPLUG
 362         def_bool y
 363
 364 config ARCH_HAS_WALK_MEMORY
 365         def_bool y
 366
 367 config ARCH_ENABLE_MEMORY_HOTREMOVE
 368         def_bool y
 369
 370 config KEXEC
 371         bool "kexec system call"
 372         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
 373         help
 374           kexec is a system call that implements the ability to shutdown your
 375           current kernel, and to start another kernel.  It is like a reboot
 376           but it is independent of the system firmware.   And like a reboot
 377           you can start any kernel with it, not just Linux.
 378
 379           The name comes from the similarity to the exec system call.
 380
 381           It is an ongoing process to be certain the hardware in a machine
 382           is properly shutdown, so do not be surprised if this code does not
 383           initially work for you.  It may help to enable device hotplugging
 384           support.  As of this writing the exact hardware interface is
 385           strongly in flux, so no good recommendation can be made.
 386
 387 config CRASH_DUMP
 388         bool "Build a kdump crash kernel"
 389         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
 390         select RELOCATABLE if PPC64 || 44x
 391         select DYNAMIC_MEMSTART if FSL_BOOKE
 392         help
 393           Build a kernel suitable for use as a kdump capture kernel.
 394           The same kernel binary can be used as production kernel and dump
 395           capture kernel.
 396
 397 config FA_DUMP
 398         bool "Firmware-assisted dump"
 399         depends on PPC64 && PPC_RTAS && CRASH_DUMP
 400         help
 401           A robust mechanism to get reliable kernel crash dump with
 402           assistance from firmware. This approach does not use kexec,
 403           instead firmware assists in booting the kdump kernel
 404           while preserving memory contents. Firmware-assisted dump
 405           is meant to be a kdump replacement offering robustness and
 406           speed not possible without system firmware assistance.
 407
 408           If unsure, say "N"
 409
 410 config IRQ_ALL_CPUS
 411         bool "Distribute interrupts on all CPUs by default"
 412         depends on SMP && !MV64360
 413         help
 414           This option gives the kernel permission to distribute IRQs across
 415           multiple CPUs.  Saying N here will route all IRQs to the first
 416           CPU.  Generally saying Y is safe, although some problems have been
 417           reported with SMP Power Macintoshes with this option enabled.
 418
 419 config NUMA
 420         bool "NUMA support"
 421         depends on PPC64
 422         default y if SMP && PPC_PSERIES
 423
 424 config NODES_SHIFT
 425         int
 426         default "8" if PPC64
 427         default "4"
 428         depends on NEED_MULTIPLE_NODES
 429
 430 config MAX_ACTIVE_REGIONS
 431         int
 432         default "256" if PPC64
 433         default "32"
 434
 435 config ARCH_SELECT_MEMORY_MODEL
 436         def_bool y
 437         depends on PPC64
 438
 439 config ARCH_FLATMEM_ENABLE
 440         def_bool y
 441         depends on (PPC64 && !NUMA) || PPC32
 442
 443 config ARCH_SPARSEMEM_ENABLE
 444         def_bool y
 445         depends on PPC64
 446         select SPARSEMEM_VMEMMAP_ENABLE
 447
 448 config ARCH_SPARSEMEM_DEFAULT
 449         def_bool y
 450         depends on (SMP && PPC_PSERIES) || PPC_PS3
 451
 452 config SYS_SUPPORTS_HUGETLBFS
 453         bool
 454
 455 source "mm/Kconfig"
 456
 457 config ARCH_MEMORY_PROBE
 458         def_bool y
 459         depends on MEMORY_HOTPLUG
 460
 461 # Some NUMA nodes have memory ranges that span
 462 # other nodes.  Even though a pfn is valid and
 463 # between a node's start and end pfns, it may not
 464 # reside on that node.  See memmap_init_zone()
 465 # for details.
 466 config NODES_SPAN_OTHER_NODES
 467         def_bool y
 468         depends on NEED_MULTIPLE_NODES
 469
 470 config PPC_HAS_HASH_64K
 471         bool
 472         depends on PPC64
 473         default n
 474
 475 config STDBINUTILS
 476         bool "Using standard binutils settings"
 477         depends on 44x
 478         default y
 479         help
 480           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 481           Note, that kernel will be able to run only those applications,
 482           which had been compiled using binutils later than 2.17.50.0.3 with
 483           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 484           the older binutils, you can patch them with a trivial patch, which
 485           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 486
 487 choice
 488         prompt "Page size"
 489         default PPC_4K_PAGES
 490         help
 491           Select the kernel logical page size. Increasing the page size
 492           will reduce software overhead at each page boundary, allow
 493           hardware prefetch mechanisms to be more effective, and allow
 494           larger dma transfers increasing IO efficiency and reducing
 495           overhead. However the utilization of memory will increase.
 496           For example, each cached file will using a multiple of the
 497           page size to hold its contents and the difference between the
 498           end of file and the end of page is wasted.
 499
 500           Some dedicated systems, such as software raid serving with
 501           accelerated calculations, have shown significant increases.
 502
 503           If you configure a 64 bit kernel for 64k pages but the
 504           processor does not support them, then the kernel will simulate
 505           them with 4k pages, loading them on demand, but with the
 506           reduced software overhead and larger internal fragmentation.
 507           For the 32 bit kernel, a large page option will not be offered
 508           unless it is supported by the configured processor.
 509
 510           If unsure, choose 4K_PAGES.
 511
 512 config PPC_4K_PAGES
 513         bool "4k page size"
 514
 515 config PPC_16K_PAGES
 516         bool "16k page size" if 44x
 517
 518 config PPC_64K_PAGES
 519         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 520         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 521
 522 config PPC_256K_PAGES
 523         bool "256k page size" if 44x
 524         depends on !STDBINUTILS
 525         help
 526           Make the page size 256k.
 527
 528           As the ELF standard only requires alignment to support page
 529           sizes up to 64k, you will need to compile all of your user
 530           space applications with a non-standard binutils settings
 531           (see the STDBINUTILS description for details).
 532
 533           Say N unless you know what you are doing.
 534
 535 endchoice
 536
 537 config FORCE_MAX_ZONEORDER
 538         int "Maximum zone order"
 539         range 9 64 if PPC64 && PPC_64K_PAGES
 540         default "9" if PPC64 && PPC_64K_PAGES
 541         range 13 64 if PPC64 && !PPC_64K_PAGES
 542         default "13" if PPC64 && !PPC_64K_PAGES
 543         range 9 64 if PPC32 && PPC_16K_PAGES
 544         default "9" if PPC32 && PPC_16K_PAGES
 545         range 7 64 if PPC32 && PPC_64K_PAGES
 546         default "7" if PPC32 && PPC_64K_PAGES
 547         range 5 64 if PPC32 && PPC_256K_PAGES
 548         default "5" if PPC32 && PPC_256K_PAGES
 549         range 11 64
 550         default "11"
 551         help
 552           The kernel memory allocator divides physically contiguous memory
 553           blocks into "zones", where each zone is a power of two number of
 554           pages.  This option selects the largest power of two that the kernel
 555           keeps in the memory allocator.  If you need to allocate very large
 556           blocks of physically contiguous memory, then you may need to
 557           increase this value.
 558
 559           This config option is actually maximum order plus one. For example,
 560           a value of 11 means that the largest free memory block is 2^10 pages.
 561
 562           The page size is not necessarily 4KB.  For example, on 64-bit
 563           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 564           this in mind when choosing a value for this option.
 565
 566 config PPC_SUBPAGE_PROT
 567         bool "Support setting protections for 4k subpages"
 568         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 569         help
 570           This option adds support for a system call to allow user programs
 571           to set access permissions (read/write, readonly, or no access)
 572           on the 4k subpages of each 64k page.
 573
 574 config SCHED_SMT
 575         bool "SMT (Hyperthreading) scheduler support"
 576         depends on PPC64 && SMP
 577         help
 578           SMT scheduler support improves the CPU scheduler's decision making
 579           when dealing with POWER5 cpus at a cost of slightly increased
 580           overhead in some places. If unsure say N here.
 581
 582 config PPC_DENORMALISATION
 583         bool "PowerPC denormalisation exception handling"
 584         depends on PPC_BOOK3S_64
 585         default "n"
 586         ---help---
 587           Add support for handling denormalisation of single precision
 588           values.  Useful for bare metal only.  If unsure say Y here.
 589
 590 config CMDLINE_BOOL
 591         bool "Default bootloader kernel arguments"
 592
 593 config CMDLINE
 594         string "Initial kernel command string"
 595         depends on CMDLINE_BOOL
 596         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 597         help
 598           On some platforms, there is currently no way for the boot loader to
 599           pass arguments to the kernel. For these platforms, you can supply
 600           some command-line options at build time by entering them here.  In
 601           most cases you will need to specify the root device here.
 602
 603 config EXTRA_TARGETS
 604         string "Additional default image types"
 605         help
 606           List additional targets to be built by the bootwrapper here (separated
 607           by spaces).  This is useful for targets that depend of device tree
 608           files in the .dts directory.
 609
 610           Targets in this list will be build as part of the default build
 611           target, or when the user does a 'make zImage' or a
 612           'make zImage.initrd'.
 613
 614           If unsure, leave blank
 615
 616 config ARCH_WANTS_FREEZER_CONTROL
 617         def_bool y
 618         depends on ADB_PMU
 619
 620 source kernel/power/Kconfig
 621
 622 config SECCOMP
 623         bool "Enable seccomp to safely compute untrusted bytecode"
 624         depends on PROC_FS
 625         default y
 626         help
 627           This kernel feature is useful for number crunching applications
 628           that may need to compute untrusted bytecode during their
 629           execution. By using pipes or other transports made available to
 630           the process as file descriptors supporting the read/write
 631           syscalls, it's possible to isolate those applications in
 632           their own address space using seccomp. Once seccomp is
 633           enabled via /proc/<pid>/seccomp, it cannot be disabled
 634           and the task is only allowed to execute a few safe syscalls
 635           defined by each seccomp mode.
 636
 637           If unsure, say Y. Only embedded should say N here.
 638
 639 endmenu
 640
 641 config ISA_DMA_API
 642         bool
 643         default PCI
 644
 645 menu "Bus options"
 646
 647 config ISA
 648         bool "Support for ISA-bus hardware"
 649         depends on PPC_PREP || PPC_CHRP
 650         select PPC_I8259
 651         help
 652           Find out whether you have ISA slots on your motherboard.  ISA is the
 653           name of a bus system, i.e. the way the CPU talks to the other stuff
 654           inside your box.  If you have an Apple machine, say N here; if you
 655           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 656           you have an embedded board, consult your board documentation.
 657
 658 config ZONE_DMA
 659         bool
 660         default y
 661
 662 config NEED_DMA_MAP_STATE
 663         def_bool (PPC64 || NOT_COHERENT_CACHE)
 664
 665 config NEED_SG_DMA_LENGTH
 666         def_bool y
 667
 668 config GENERIC_ISA_DMA
 669         bool
 670         depends on ISA_DMA_API
 671         default y
 672
 673 config PPC_INDIRECT_PCI
 674         bool
 675         depends on PCI
 676         default y if 40x || 44x
 677         default n
 678
 679 config EISA
 680         bool
 681
 682 config SBUS
 683         bool
 684
 685 config FSL_SOC
 686         bool
 687         select HAVE_CAN_FLEXCAN if NET && CAN
 688         select PPC_CLOCK
 689
 690 config FSL_PCI
 691         bool
 692         select PPC_INDIRECT_PCI
 693         select PCI_QUIRKS
 694
 695 config FSL_PMC
 696         bool
 697         default y
 698         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 699         help
 700           Freescale MPC85xx/MPC86xx power management controller support
 701           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 702
 703 config PPC4xx_CPM
 704         bool
 705         default y
 706         depends on SUSPEND && (44x || 40x)
 707         help
 708           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 709           It also enables support for two different idle states (idle-wait
 710           and idle-doze).
 711
 712 config 4xx_SOC
 713         bool
 714
 715 config FSL_LBC
 716         bool "Freescale Local Bus support"
 717         depends on FSL_SOC
 718         help
 719           Enables reporting of errors from the Freescale local bus
 720           controller.  Also contains some common code used by
 721           drivers for specific local bus peripherals.
 722
 723 config FSL_IFC
 724         bool
 725         depends on FSL_SOC
 726
 727 config FSL_GTM
 728         bool
 729         depends on PPC_83xx || QUICC_ENGINE || CPM2
 730         help
 731           Freescale General-purpose Timers support
 732
 733 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 734 config MCA
 735         bool
 736
 737 # Platforms that what PCI turned unconditionally just do select PCI
 738 # in their config node.  Platforms that want to choose at config
 739 # time should select PPC_PCI_CHOICE
 740 config PPC_PCI_CHOICE
 741         bool
 742
 743 config PCI
 744         bool "PCI support" if PPC_PCI_CHOICE
 745         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 746                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 747         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 748         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 749         select ARCH_SUPPORTS_MSI
 750         select GENERIC_PCI_IOMAP
 751         help
 752           Find out whether your system includes a PCI bus. PCI is the name of
 753           a bus system, i.e. the way the CPU talks to the other stuff inside
 754           your box.  If you say Y here, the kernel will include drivers and
 755           infrastructure code to support PCI bus devices.
 756
 757 config PCI_DOMAINS
 758         def_bool PCI
 759
 760 config PCI_SYSCALL
 761         def_bool PCI
 762
 763 config PCI_QSPAN
 764         bool "QSpan PCI"
 765         depends on !4xx && !CPM2 && 8xx
 766         select PPC_I8259
 767         help
 768           Say Y here if you have a system based on a Motorola 8xx-series
 769           embedded processor with a QSPAN PCI interface, otherwise say N.
 770
 771 config PCI_8260
 772         bool
 773         depends on PCI && 8260
 774         select PPC_INDIRECT_PCI
 775         default y
 776
 777 config 8260_PCI9
 778         bool "Enable workaround for MPC826x erratum PCI 9"
 779         depends on PCI_8260 && !8272
 780         default y
 781
 782 source "drivers/pci/pcie/Kconfig"
 783
 784 source "drivers/pci/Kconfig"
 785
 786 source "drivers/pcmcia/Kconfig"
 787
 788 source "drivers/pci/hotplug/Kconfig"
 789
 790 config HAS_RAPIDIO
 791         bool
 792         default n
 793
 794 config RAPIDIO
 795         bool "RapidIO support"
 796         depends on HAS_RAPIDIO || PCI
 797         help
 798           If you say Y here, the kernel will include drivers and
 799           infrastructure code to support RapidIO interconnect devices.
 800
 801 config FSL_RIO
 802         bool "Freescale Embedded SRIO Controller support"
 803         depends on RAPIDIO && HAS_RAPIDIO
 804         default "n"
 805         ---help---
 806           Include support for RapidIO controller on Freescale embedded
 807           processors (MPC8548, MPC8641, etc).
 808
 809 source "drivers/rapidio/Kconfig"
 810
 811 endmenu
 812
 813 config NONSTATIC_KERNEL
 814         bool
 815         default n
 816
 817 menu "Advanced setup"
 818         depends on PPC32
 819
 820 config ADVANCED_OPTIONS
 821         bool "Prompt for advanced kernel configuration options"
 822         help
 823           This option will enable prompting for a variety of advanced kernel
 824           configuration options.  These options can cause the kernel to not
 825           work if they are set incorrectly, but can be used to optimize certain
 826           aspects of kernel memory management.
 827
 828           Unless you know what you are doing, say N here.
 829
 830 comment "Default settings for advanced configuration options are used"
 831         depends on !ADVANCED_OPTIONS
 832
 833 config LOWMEM_SIZE_BOOL
 834         bool "Set maximum low memory"
 835         depends on ADVANCED_OPTIONS
 836         help
 837           This option allows you to set the maximum amount of memory which
 838           will be used as "low memory", that is, memory which the kernel can
 839           access directly, without having to set up a kernel virtual mapping.
 840           This can be useful in optimizing the layout of kernel virtual
 841           memory.
 842
 843           Say N here unless you know what you are doing.
 844
 845 config LOWMEM_SIZE
 846         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 847         default "0x30000000"
 848
 849 config LOWMEM_CAM_NUM_BOOL
 850         bool "Set number of CAMs to use to map low memory"
 851         depends on ADVANCED_OPTIONS && FSL_BOOKE
 852         help
 853           This option allows you to set the maximum number of CAM slots that
 854           will be used to map low memory.  There are a limited number of slots
 855           available and even more limited number that will fit in the L1 MMU.
 856           However, using more entries will allow mapping more low memory.  This
 857           can be useful in optimizing the layout of kernel virtual memory.
 858
 859           Say N here unless you know what you are doing.
 860
 861 config LOWMEM_CAM_NUM
 862         depends on FSL_BOOKE
 863         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 864         default 3
 865
 866 config DYNAMIC_MEMSTART
 867         bool "Enable page aligned dynamic load address for kernel"
 868         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
 869         select NONSTATIC_KERNEL
 870         help
 871           This option enables the kernel to be loaded at any page aligned
 872           physical address. The kernel creates a mapping from KERNELBASE to
 873           the address where the kernel is loaded. The page size here implies
 874           the TLB page size of the mapping for kernel on the particular platform.
 875           Please refer to the init code for finding the TLB page size.
 876
 877           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
 878           kernel image, where the only restriction is the page aligned kernel
 879           load address. When this option is enabled, the compile time physical
 880           address CONFIG_PHYSICAL_START is ignored.
 881
 882           This option is overridden by CONFIG_RELOCATABLE
 883
 884 config RELOCATABLE
 885         bool "Build a relocatable kernel"
 886         depends on ADVANCED_OPTIONS && FLATMEM && 44x
 887         select NONSTATIC_KERNEL
 888         help
 889           This builds a kernel image that is capable of running at the
 890           location the kernel is loaded at, without any alignment restrictions.
 891           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
 892
 893           One use is for the kexec on panic case where the recovery kernel
 894           must live at a different physical address than the primary
 895           kernel.
 896
 897           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 898           it has been loaded at and the compile time physical addresses
 899           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 900           setting can still be useful to bootwrappers that need to know the
 901           load address of the kernel (eg. u-boot/mkimage).
 902
 903 config RELOCATABLE_PPC32
 904         def_bool y
 905         depends on PPC32 && RELOCATABLE
 906
 907 config PAGE_OFFSET_BOOL
 908         bool "Set custom page offset address"
 909         depends on ADVANCED_OPTIONS
 910         help
 911           This option allows you to set the kernel virtual address at which
 912           the kernel will map low memory.  This can be useful in optimizing
 913           the virtual memory layout of the system.
 914
 915           Say N here unless you know what you are doing.
 916
 917 config PAGE_OFFSET
 918         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 919         default "0xc0000000"
 920
 921 config KERNEL_START_BOOL
 922         bool "Set custom kernel base address"
 923         depends on ADVANCED_OPTIONS
 924         help
 925           This option allows you to set the kernel virtual address at which
 926           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 927           however there are times (like kdump) that one might not want them
 928           to be the same.
 929
 930           Say N here unless you know what you are doing.
 931
 932 config KERNEL_START
 933         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 934         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 935         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
 936         default "0xc0000000"
 937
 938 config PHYSICAL_START_BOOL
 939         bool "Set physical address where the kernel is loaded"
 940         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 941         help
 942           This gives the physical address where the kernel is loaded.
 943
 944           Say N here unless you know what you are doing.
 945
 946 config PHYSICAL_START
 947         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 948         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
 949         default "0x00000000"
 950
 951 config PHYSICAL_ALIGN
 952         hex
 953         default "0x04000000" if FSL_BOOKE
 954         help
 955           This value puts the alignment restrictions on physical address
 956           where kernel is loaded and run from. Kernel is compiled for an
 957           address which meets above alignment restriction.
 958
 959 config TASK_SIZE_BOOL
 960         bool "Set custom user task size"
 961         depends on ADVANCED_OPTIONS
 962         help
 963           This option allows you to set the amount of virtual address space
 964           allocated to user tasks.  This can be useful in optimizing the
 965           virtual memory layout of the system.
 966
 967           Say N here unless you know what you are doing.
 968
 969 config TASK_SIZE
 970         hex "Size of user task space" if TASK_SIZE_BOOL
 971         default "0x80000000" if PPC_PREP || PPC_8xx
 972         default "0xc0000000"
 973
 974 config CONSISTENT_SIZE_BOOL
 975         bool "Set custom consistent memory pool size"
 976         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 977         help
 978           This option allows you to set the size of the
 979           consistent memory pool.  This pool of virtual memory
 980           is used to make consistent memory allocations.
 981
 982 config CONSISTENT_SIZE
 983         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 984         default "0x00200000" if NOT_COHERENT_CACHE
 985
 986 config PIN_TLB
 987         bool "Pinned Kernel TLBs (860 ONLY)"
 988         depends on ADVANCED_OPTIONS && 8xx
 989 endmenu
 990
 991 if PPC64
 992 config RELOCATABLE
 993         bool "Build a relocatable kernel"
 994         select NONSTATIC_KERNEL
 995         help
 996           This builds a kernel image that is capable of running anywhere
 997           in the RMA (real memory area) at any 16k-aligned base address.
 998           The kernel is linked as a position-independent executable (PIE)
 999           and contains dynamic relocations which are processed early
1000           in the bootup process.
1001
1002           One use is for the kexec on panic case where the recovery kernel
1003           must live at a different physical address than the primary
1004           kernel.
1005
1006 config PAGE_OFFSET
1007         hex
1008         default "0xc000000000000000"
1009 config KERNEL_START
1010         hex
1011         default "0xc000000000000000"
1012 config PHYSICAL_START
1013         hex
1014         default "0x00000000"
1015 endif
1016
1017 source "net/Kconfig"
1018
1019 source "drivers/Kconfig"
1020
1021 source "fs/Kconfig"
1022
1023 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1024
1025 source "lib/Kconfig"
1026
1027 source "arch/powerpc/Kconfig.debug"
1028
1029 source "security/Kconfig"
1030
1031 config KEYS_COMPAT
1032         bool
1033         depends on COMPAT && KEYS
1034         default y
1035
1036 source "crypto/Kconfig"
1037
1038 config PPC_CLOCK
1039         bool
1040         default n
1041         select HAVE_CLK
1042
1043 config PPC_LIB_RHEAP
1044         bool
1045
1046 source "arch/powerpc/kvm/Kconfig"