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