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