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 GENERIC_CMOS_UPDATE
  31         def_bool y
  32
  33 config GENERIC_TIME_VSYSCALL
  34         def_bool y
  35
  36 config GENERIC_CLOCKEVENTS
  37         def_bool y
  38
  39 config HAVE_SETUP_PER_CPU_AREA
  40         def_bool PPC64
  41
  42 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  43         def_bool PPC64
  44
  45 config NR_IRQS
  46         int "Number of virtual interrupt numbers"
  47         range 32 32768
  48         default "512"
  49         help
  50           This defines the number of virtual interrupt numbers the kernel
  51           can manage. Virtual interrupt numbers are what you see in
  52           /proc/interrupts. If you configure your system to have too few,
  53           drivers will fail to load or worse - handle with care.
  54
  55 config STACKTRACE_SUPPORT
  56         bool
  57         default y
  58
  59 config HAVE_LATENCYTOP_SUPPORT
  60         def_bool y
  61
  62 config TRACE_IRQFLAGS_SUPPORT
  63         bool
  64         default y
  65
  66 config LOCKDEP_SUPPORT
  67         bool
  68         default y
  69
  70 config RWSEM_GENERIC_SPINLOCK
  71         bool
  72
  73 config RWSEM_XCHGADD_ALGORITHM
  74         bool
  75         default y
  76
  77 config GENERIC_LOCKBREAK
  78         bool
  79         default y
  80         depends on SMP && PREEMPT
  81
  82 config ARCH_HAS_ILOG2_U32
  83         bool
  84         default y
  85
  86 config ARCH_HAS_ILOG2_U64
  87         bool
  88         default y if 64BIT
  89
  90 config GENERIC_HWEIGHT
  91         bool
  92         default y
  93
  94 config GENERIC_GPIO
  95         bool
  96         help
  97           Generic GPIO API support
  98
  99 config ARCH_NO_VIRT_TO_BUS
 100         def_bool PPC64
 101
 102 config PPC
 103         bool
 104         default y
 105         select OF
 106         select OF_EARLY_FLATTREE
 107         select HAVE_FTRACE_MCOUNT_RECORD
 108         select HAVE_DYNAMIC_FTRACE
 109         select HAVE_FUNCTION_TRACER
 110         select HAVE_FUNCTION_GRAPH_TRACER
 111         select ARCH_WANT_OPTIONAL_GPIOLIB
 112         select HAVE_IDE
 113         select HAVE_IOREMAP_PROT
 114         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 115         select HAVE_KPROBES
 116         select HAVE_ARCH_KGDB
 117         select HAVE_KRETPROBES
 118         select HAVE_ARCH_TRACEHOOK
 119         select HAVE_MEMBLOCK
 120         select HAVE_DMA_ATTRS
 121         select HAVE_DMA_API_DEBUG
 122         select USE_GENERIC_SMP_HELPERS if SMP
 123         select HAVE_OPROFILE
 124         select HAVE_SYSCALL_WRAPPERS if PPC64
 125         select GENERIC_ATOMIC64 if PPC32
 126         select HAVE_IRQ_WORK
 127         select HAVE_PERF_EVENTS
 128         select HAVE_REGS_AND_STACK_ACCESS_API
 129         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 130         select HAVE_GENERIC_HARDIRQS
 131         select HAVE_SPARSE_IRQ
 132         select IRQ_PER_CPU
 133         select GENERIC_IRQ_SHOW
 134         select GENERIC_IRQ_SHOW_LEVEL
 135         select HAVE_RCU_TABLE_FREE if SMP
 136         select HAVE_SYSCALL_TRACEPOINTS
 137         select HAVE_BPF_JIT if (PPC64 && NET)
 138         select HAVE_ARCH_JUMP_LABEL
 139         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 140
 141 config EARLY_PRINTK
 142         bool
 143         default y
 144
 145 config COMPAT
 146         bool
 147         default y if PPC64
 148         select COMPAT_BINFMT_ELF
 149
 150 config SYSVIPC_COMPAT
 151         bool
 152         depends on COMPAT && SYSVIPC
 153         default y
 154
 155 # All PPC32s use generic nvram driver through ppc_md
 156 config GENERIC_NVRAM
 157         bool
 158         default y if PPC32
 159
 160 config SCHED_OMIT_FRAME_POINTER
 161         bool
 162         default y
 163
 164 config ARCH_MAY_HAVE_PC_FDC
 165         bool
 166         default !PPC_PSERIES || PCI
 167
 168 config PPC_OF
 169         def_bool y
 170
 171 config PPC_UDBG_16550
 172         bool
 173         default n
 174
 175 config GENERIC_TBSYNC
 176         bool
 177         default y if PPC32 && SMP
 178         default n
 179
 180 config AUDIT_ARCH
 181         bool
 182         default y
 183
 184 config GENERIC_BUG
 185         bool
 186         default y
 187         depends on BUG
 188
 189 config SYS_SUPPORTS_APM_EMULATION
 190         default y if PMAC_APM_EMU
 191         bool
 192
 193 config EPAPR_BOOT
 194         bool
 195         help
 196           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 197         default n
 198
 199 config DEFAULT_UIMAGE
 200         bool
 201         help
 202           Used to allow a board to specify it wants a uImage built by default
 203         default n
 204
 205 config REDBOOT
 206         bool
 207
 208 config ARCH_HIBERNATION_POSSIBLE
 209         bool
 210         default y
 211
 212 config ARCH_SUSPEND_POSSIBLE
 213         def_bool y
 214         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 215                    (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
 216
 217 config PPC_DCR_NATIVE
 218         bool
 219         default n
 220
 221 config PPC_DCR_MMIO
 222         bool
 223         default n
 224
 225 config PPC_DCR
 226         bool
 227         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 228         default y
 229
 230 config PPC_OF_PLATFORM_PCI
 231         bool
 232         depends on PCI
 233         depends on PPC64 # not supported on 32 bits yet
 234         default n
 235
 236 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 237         def_bool y
 238
 239 config PPC_ADV_DEBUG_REGS
 240         bool
 241         depends on 40x || BOOKE
 242         default y
 243
 244 config PPC_ADV_DEBUG_IACS
 245         int
 246         depends on PPC_ADV_DEBUG_REGS
 247         default 4 if 44x
 248         default 2
 249
 250 config PPC_ADV_DEBUG_DACS
 251         int
 252         depends on PPC_ADV_DEBUG_REGS
 253         default 2
 254
 255 config PPC_ADV_DEBUG_DVCS
 256         int
 257         depends on PPC_ADV_DEBUG_REGS
 258         default 2 if 44x
 259         default 0
 260
 261 config PPC_ADV_DEBUG_DAC_RANGE
 262         bool
 263         depends on PPC_ADV_DEBUG_REGS && 44x
 264         default y
 265
 266 source "init/Kconfig"
 267
 268 source "kernel/Kconfig.freezer"
 269
 270 source "arch/powerpc/sysdev/Kconfig"
 271 source "arch/powerpc/platforms/Kconfig"
 272
 273 menu "Kernel options"
 274
 275 config HIGHMEM
 276         bool "High memory support"
 277         depends on PPC32
 278
 279 source kernel/time/Kconfig
 280 source kernel/Kconfig.hz
 281 source kernel/Kconfig.preempt
 282 source "fs/Kconfig.binfmt"
 283
 284 config HUGETLB_PAGE_SIZE_VARIABLE
 285         bool
 286         depends on HUGETLB_PAGE
 287         default y
 288
 289 config MATH_EMULATION
 290         bool "Math emulation"
 291         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 292         ---help---
 293           Some PowerPC chips designed for embedded applications do not have
 294           a floating-point unit and therefore do not implement the
 295           floating-point instructions in the PowerPC instruction set.  If you
 296           say Y here, the kernel will include code to emulate a floating-point
 297           unit, which will allow programs that use floating-point
 298           instructions to run.
 299
 300 config 8XX_MINIMAL_FPEMU
 301         bool "Minimal math emulation for 8xx"
 302         depends on 8xx && !MATH_EMULATION
 303         help
 304           Older arch/ppc kernels still emulated a few floating point
 305           instructions such as load and store, even when full math
 306           emulation is disabled.  Say "Y" here if you want to preserve
 307           this behavior.
 308
 309           It is recommended that you build a soft-float userspace instead.
 310
 311 config IOMMU_HELPER
 312         def_bool PPC64
 313
 314 config SWIOTLB
 315         bool "SWIOTLB support"
 316         default n
 317         select IOMMU_HELPER
 318         ---help---
 319           Support for IO bounce buffering for systems without an IOMMU.
 320           This allows us to DMA to the full physical address space on
 321           platforms where the size of a physical address is larger
 322           than the bus address.  Not all platforms support this.
 323
 324 config HOTPLUG_CPU
 325         bool "Support for enabling/disabling CPUs"
 326         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
 327         ---help---
 328           Say Y here to be able to disable and re-enable individual
 329           CPUs at runtime on SMP machines.
 330
 331           Say N if you are unsure.
 332
 333 config ARCH_CPU_PROBE_RELEASE
 334         def_bool y
 335         depends on HOTPLUG_CPU
 336
 337 config ARCH_ENABLE_MEMORY_HOTPLUG
 338         def_bool y
 339
 340 config ARCH_HAS_WALK_MEMORY
 341         def_bool y
 342
 343 config ARCH_ENABLE_MEMORY_HOTREMOVE
 344         def_bool y
 345
 346 config KEXEC
 347         bool "kexec system call (EXPERIMENTAL)"
 348         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
 349         help
 350           kexec is a system call that implements the ability to shutdown your
 351           current kernel, and to start another kernel.  It is like a reboot
 352           but it is independent of the system firmware.   And like a reboot
 353           you can start any kernel with it, not just Linux.
 354
 355           The name comes from the similarity to the exec system call.
 356
 357           It is an ongoing process to be certain the hardware in a machine
 358           is properly shutdown, so do not be surprised if this code does not
 359           initially work for you.  It may help to enable device hotplugging
 360           support.  As of this writing the exact hardware interface is
 361           strongly in flux, so no good recommendation can be made.
 362
 363 config CRASH_DUMP
 364         bool "Build a kdump crash kernel"
 365         depends on PPC64 || 6xx || FSL_BOOKE
 366         select RELOCATABLE if PPC64 || FSL_BOOKE
 367         help
 368           Build a kernel suitable for use as a kdump capture kernel.
 369           The same kernel binary can be used as production kernel and dump
 370           capture kernel.
 371
 372 config PHYP_DUMP
 373         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 374         depends on PPC_PSERIES && EXPERIMENTAL
 375         help
 376           Hypervisor-assisted dump is meant to be a kdump replacement
 377           offering robustness and speed not possible without system
 378           hypervisor assistance.
 379
 380           If unsure, say "N"
 381
 382 config IRQ_ALL_CPUS
 383         bool "Distribute interrupts on all CPUs by default"
 384         depends on SMP && !MV64360
 385         help
 386           This option gives the kernel permission to distribute IRQs across
 387           multiple CPUs.  Saying N here will route all IRQs to the first
 388           CPU.  Generally saying Y is safe, although some problems have been
 389           reported with SMP Power Macintoshes with this option enabled.
 390
 391 config NUMA
 392         bool "NUMA support"
 393         depends on PPC64
 394         default y if SMP && PPC_PSERIES
 395
 396 config NODES_SHIFT
 397         int
 398         default "8" if PPC64
 399         default "4"
 400         depends on NEED_MULTIPLE_NODES
 401
 402 config MAX_ACTIVE_REGIONS
 403         int
 404         default "256" if PPC64
 405         default "32"
 406
 407 config ARCH_SELECT_MEMORY_MODEL
 408         def_bool y
 409         depends on PPC64
 410
 411 config ARCH_FLATMEM_ENABLE
 412         def_bool y
 413         depends on (PPC64 && !NUMA) || PPC32
 414
 415 config ARCH_SPARSEMEM_ENABLE
 416         def_bool y
 417         depends on PPC64
 418         select SPARSEMEM_VMEMMAP_ENABLE
 419
 420 config ARCH_SPARSEMEM_DEFAULT
 421         def_bool y
 422         depends on (SMP && PPC_PSERIES) || PPC_PS3
 423
 424 config ARCH_POPULATES_NODE_MAP
 425         def_bool y
 426
 427 config SYS_SUPPORTS_HUGETLBFS
 428         bool
 429
 430 source "mm/Kconfig"
 431
 432 config ARCH_MEMORY_PROBE
 433         def_bool y
 434         depends on MEMORY_HOTPLUG
 435
 436 # Some NUMA nodes have memory ranges that span
 437 # other nodes.  Even though a pfn is valid and
 438 # between a node's start and end pfns, it may not
 439 # reside on that node.  See memmap_init_zone()
 440 # for details.
 441 config NODES_SPAN_OTHER_NODES
 442         def_bool y
 443         depends on NEED_MULTIPLE_NODES
 444
 445 config PPC_HAS_HASH_64K
 446         bool
 447         depends on PPC64
 448         default n
 449
 450 config STDBINUTILS
 451         bool "Using standard binutils settings"
 452         depends on 44x
 453         default y
 454         help
 455           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 456           Note, that kernel will be able to run only those applications,
 457           which had been compiled using binutils later than 2.17.50.0.3 with
 458           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 459           the older binutils, you can patch them with a trivial patch, which
 460           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 461
 462 choice
 463         prompt "Page size"
 464         default PPC_4K_PAGES
 465         help
 466           Select the kernel logical page size. Increasing the page size
 467           will reduce software overhead at each page boundary, allow
 468           hardware prefetch mechanisms to be more effective, and allow
 469           larger dma transfers increasing IO efficiency and reducing
 470           overhead. However the utilization of memory will increase.
 471           For example, each cached file will using a multiple of the
 472           page size to hold its contents and the difference between the
 473           end of file and the end of page is wasted.
 474
 475           Some dedicated systems, such as software raid serving with
 476           accelerated calculations, have shown significant increases.
 477
 478           If you configure a 64 bit kernel for 64k pages but the
 479           processor does not support them, then the kernel will simulate
 480           them with 4k pages, loading them on demand, but with the
 481           reduced software overhead and larger internal fragmentation.
 482           For the 32 bit kernel, a large page option will not be offered
 483           unless it is supported by the configured processor.
 484
 485           If unsure, choose 4K_PAGES.
 486
 487 config PPC_4K_PAGES
 488         bool "4k page size"
 489
 490 config PPC_16K_PAGES
 491         bool "16k page size" if 44x
 492
 493 config PPC_64K_PAGES
 494         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 495         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 496
 497 config PPC_256K_PAGES
 498         bool "256k page size" if 44x
 499         depends on !STDBINUTILS
 500         help
 501           Make the page size 256k.
 502
 503           As the ELF standard only requires alignment to support page
 504           sizes up to 64k, you will need to compile all of your user
 505           space applications with a non-standard binutils settings
 506           (see the STDBINUTILS description for details).
 507
 508           Say N unless you know what you are doing.
 509
 510 endchoice
 511
 512 config FORCE_MAX_ZONEORDER
 513         int "Maximum zone order"
 514         range 9 64 if PPC64 && PPC_64K_PAGES
 515         default "9" if PPC64 && PPC_64K_PAGES
 516         range 13 64 if PPC64 && !PPC_64K_PAGES
 517         default "13" if PPC64 && !PPC_64K_PAGES
 518         range 9 64 if PPC32 && PPC_16K_PAGES
 519         default "9" if PPC32 && PPC_16K_PAGES
 520         range 7 64 if PPC32 && PPC_64K_PAGES
 521         default "7" if PPC32 && PPC_64K_PAGES
 522         range 5 64 if PPC32 && PPC_256K_PAGES
 523         default "5" if PPC32 && PPC_256K_PAGES
 524         range 11 64
 525         default "11"
 526         help
 527           The kernel memory allocator divides physically contiguous memory
 528           blocks into "zones", where each zone is a power of two number of
 529           pages.  This option selects the largest power of two that the kernel
 530           keeps in the memory allocator.  If you need to allocate very large
 531           blocks of physically contiguous memory, then you may need to
 532           increase this value.
 533
 534           This config option is actually maximum order plus one. For example,
 535           a value of 11 means that the largest free memory block is 2^10 pages.
 536
 537           The page size is not necessarily 4KB.  For example, on 64-bit
 538           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 539           this in mind when choosing a value for this option.
 540
 541 config PPC_SUBPAGE_PROT
 542         bool "Support setting protections for 4k subpages"
 543         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 544         help
 545           This option adds support for a system call to allow user programs
 546           to set access permissions (read/write, readonly, or no access)
 547           on the 4k subpages of each 64k page.
 548
 549 config SCHED_SMT
 550         bool "SMT (Hyperthreading) scheduler support"
 551         depends on PPC64 && SMP
 552         help
 553           SMT scheduler support improves the CPU scheduler's decision making
 554           when dealing with POWER5 cpus at a cost of slightly increased
 555           overhead in some places. If unsure say N here.
 556
 557 config CMDLINE_BOOL
 558         bool "Default bootloader kernel arguments"
 559
 560 config CMDLINE
 561         string "Initial kernel command string"
 562         depends on CMDLINE_BOOL
 563         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 564         help
 565           On some platforms, there is currently no way for the boot loader to
 566           pass arguments to the kernel. For these platforms, you can supply
 567           some command-line options at build time by entering them here.  In
 568           most cases you will need to specify the root device here.
 569
 570 config EXTRA_TARGETS
 571         string "Additional default image types"
 572         help
 573           List additional targets to be built by the bootwrapper here (separated
 574           by spaces).  This is useful for targets that depend of device tree
 575           files in the .dts directory.
 576
 577           Targets in this list will be build as part of the default build
 578           target, or when the user does a 'make zImage' or a
 579           'make zImage.initrd'.
 580
 581           If unsure, leave blank
 582
 583 config ARCH_WANTS_FREEZER_CONTROL
 584         def_bool y
 585         depends on ADB_PMU
 586
 587 source kernel/power/Kconfig
 588
 589 config SECCOMP
 590         bool "Enable seccomp to safely compute untrusted bytecode"
 591         depends on PROC_FS
 592         default y
 593         help
 594           This kernel feature is useful for number crunching applications
 595           that may need to compute untrusted bytecode during their
 596           execution. By using pipes or other transports made available to
 597           the process as file descriptors supporting the read/write
 598           syscalls, it's possible to isolate those applications in
 599           their own address space using seccomp. Once seccomp is
 600           enabled via /proc/<pid>/seccomp, it cannot be disabled
 601           and the task is only allowed to execute a few safe syscalls
 602           defined by each seccomp mode.
 603
 604           If unsure, say Y. Only embedded should say N here.
 605
 606 endmenu
 607
 608 config ISA_DMA_API
 609         bool
 610         default !PPC_ISERIES || PCI
 611
 612 menu "Bus options"
 613
 614 config ISA
 615         bool "Support for ISA-bus hardware"
 616         depends on PPC_PREP || PPC_CHRP
 617         select PPC_I8259
 618         help
 619           Find out whether you have ISA slots on your motherboard.  ISA is the
 620           name of a bus system, i.e. the way the CPU talks to the other stuff
 621           inside your box.  If you have an Apple machine, say N here; if you
 622           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 623           you have an embedded board, consult your board documentation.
 624
 625 config ZONE_DMA
 626         bool
 627         default y
 628
 629 config NEED_DMA_MAP_STATE
 630         def_bool (PPC64 || NOT_COHERENT_CACHE)
 631
 632 config NEED_SG_DMA_LENGTH
 633         def_bool y
 634
 635 config GENERIC_ISA_DMA
 636         bool
 637         depends on ISA_DMA_API
 638         default y
 639
 640 config PPC_INDIRECT_PCI
 641         bool
 642         depends on PCI
 643         default y if 40x || 44x
 644         default n
 645
 646 config EISA
 647         bool
 648
 649 config SBUS
 650         bool
 651
 652 config FSL_SOC
 653         bool
 654         select HAVE_CAN_FLEXCAN if NET && CAN
 655         select PPC_CLOCK if CAN_FLEXCAN
 656
 657 config FSL_PCI
 658         bool
 659         select PPC_INDIRECT_PCI
 660         select PCI_QUIRKS
 661
 662 config FSL_PMC
 663         bool
 664         default y
 665         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 666         help
 667           Freescale MPC85xx/MPC86xx power management controller support
 668           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 669
 670 config PPC4xx_CPM
 671         bool
 672         default y
 673         depends on SUSPEND && (44x || 40x)
 674         help
 675           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 676           It also enables support for two different idle states (idle-wait
 677           and idle-doze).
 678
 679 config 4xx_SOC
 680         bool
 681
 682 config FSL_LBC
 683         bool "Freescale Local Bus support"
 684         depends on FSL_SOC
 685         help
 686           Enables reporting of errors from the Freescale local bus
 687           controller.  Also contains some common code used by
 688           drivers for specific local bus peripherals.
 689
 690 config FSL_GTM
 691         bool
 692         depends on PPC_83xx || QUICC_ENGINE || CPM2
 693         help
 694           Freescale General-purpose Timers support
 695
 696 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 697 config MCA
 698         bool
 699
 700 # Platforms that what PCI turned unconditionally just do select PCI
 701 # in their config node.  Platforms that want to choose at config
 702 # time should select PPC_PCI_CHOICE
 703 config PPC_PCI_CHOICE
 704         bool
 705
 706 config PCI
 707         bool "PCI support" if PPC_PCI_CHOICE
 708         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 709                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 710         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 711         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 712         select ARCH_SUPPORTS_MSI
 713         help
 714           Find out whether your system includes a PCI bus. PCI is the name of
 715           a bus system, i.e. the way the CPU talks to the other stuff inside
 716           your box.  If you say Y here, the kernel will include drivers and
 717           infrastructure code to support PCI bus devices.
 718
 719 config PCI_DOMAINS
 720         def_bool PCI
 721
 722 config PCI_SYSCALL
 723         def_bool PCI
 724
 725 config PCI_QSPAN
 726         bool "QSpan PCI"
 727         depends on !4xx && !CPM2 && 8xx
 728         select PPC_I8259
 729         help
 730           Say Y here if you have a system based on a Motorola 8xx-series
 731           embedded processor with a QSPAN PCI interface, otherwise say N.
 732
 733 config PCI_8260
 734         bool
 735         depends on PCI && 8260
 736         select PPC_INDIRECT_PCI
 737         default y
 738
 739 config 8260_PCI9
 740         bool "Enable workaround for MPC826x erratum PCI 9"
 741         depends on PCI_8260 && !8272
 742         default y
 743
 744 source "drivers/pci/pcie/Kconfig"
 745
 746 source "drivers/pci/Kconfig"
 747
 748 source "drivers/pcmcia/Kconfig"
 749
 750 source "drivers/pci/hotplug/Kconfig"
 751
 752 config HAS_RAPIDIO
 753         bool
 754         default n
 755
 756 config RAPIDIO
 757         bool "RapidIO support"
 758         depends on HAS_RAPIDIO || PCI
 759         help
 760           If you say Y here, the kernel will include drivers and
 761           infrastructure code to support RapidIO interconnect devices.
 762
 763 config FSL_RIO
 764         bool "Freescale Embedded SRIO Controller support"
 765         depends on RAPIDIO && HAS_RAPIDIO
 766         default "n"
 767         ---help---
 768           Include support for RapidIO controller on Freescale embedded
 769           processors (MPC8548, MPC8641, etc).
 770
 771 source "drivers/rapidio/Kconfig"
 772
 773 endmenu
 774
 775 menu "Advanced setup"
 776         depends on PPC32
 777
 778 config ADVANCED_OPTIONS
 779         bool "Prompt for advanced kernel configuration options"
 780         help
 781           This option will enable prompting for a variety of advanced kernel
 782           configuration options.  These options can cause the kernel to not
 783           work if they are set incorrectly, but can be used to optimize certain
 784           aspects of kernel memory management.
 785
 786           Unless you know what you are doing, say N here.
 787
 788 comment "Default settings for advanced configuration options are used"
 789         depends on !ADVANCED_OPTIONS
 790
 791 config LOWMEM_SIZE_BOOL
 792         bool "Set maximum low memory"
 793         depends on ADVANCED_OPTIONS
 794         help
 795           This option allows you to set the maximum amount of memory which
 796           will be used as "low memory", that is, memory which the kernel can
 797           access directly, without having to set up a kernel virtual mapping.
 798           This can be useful in optimizing the layout of kernel virtual
 799           memory.
 800
 801           Say N here unless you know what you are doing.
 802
 803 config LOWMEM_SIZE
 804         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 805         default "0x30000000"
 806
 807 config LOWMEM_CAM_NUM_BOOL
 808         bool "Set number of CAMs to use to map low memory"
 809         depends on ADVANCED_OPTIONS && FSL_BOOKE
 810         help
 811           This option allows you to set the maximum number of CAM slots that
 812           will be used to map low memory.  There are a limited number of slots
 813           available and even more limited number that will fit in the L1 MMU.
 814           However, using more entries will allow mapping more low memory.  This
 815           can be useful in optimizing the layout of kernel virtual memory.
 816
 817           Say N here unless you know what you are doing.
 818
 819 config LOWMEM_CAM_NUM
 820         depends on FSL_BOOKE
 821         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 822         default 3
 823
 824 config RELOCATABLE
 825         bool "Build a relocatable kernel (EXPERIMENTAL)"
 826         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x)
 827         help
 828           This builds a kernel image that is capable of running at the
 829           location the kernel is loaded at (some alignment restrictions may
 830           exist).
 831
 832           One use is for the kexec on panic case where the recovery kernel
 833           must live at a different physical address than the primary
 834           kernel.
 835
 836           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 837           it has been loaded at and the compile time physical addresses
 838           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 839           setting can still be useful to bootwrappers that need to know the
 840           load location of the kernel (eg. u-boot/mkimage).
 841
 842 config PAGE_OFFSET_BOOL
 843         bool "Set custom page offset address"
 844         depends on ADVANCED_OPTIONS
 845         help
 846           This option allows you to set the kernel virtual address at which
 847           the kernel will map low memory.  This can be useful in optimizing
 848           the virtual memory layout of the system.
 849
 850           Say N here unless you know what you are doing.
 851
 852 config PAGE_OFFSET
 853         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 854         default "0xc0000000"
 855
 856 config KERNEL_START_BOOL
 857         bool "Set custom kernel base address"
 858         depends on ADVANCED_OPTIONS
 859         help
 860           This option allows you to set the kernel virtual address at which
 861           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 862           however there are times (like kdump) that one might not want them
 863           to be the same.
 864
 865           Say N here unless you know what you are doing.
 866
 867 config KERNEL_START
 868         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 869         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 870         default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
 871         default "0xc0000000"
 872
 873 config PHYSICAL_START_BOOL
 874         bool "Set physical address where the kernel is loaded"
 875         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 876         help
 877           This gives the physical address where the kernel is loaded.
 878
 879           Say N here unless you know what you are doing.
 880
 881 config PHYSICAL_START
 882         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 883         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
 884         default "0x00000000"
 885
 886 config PHYSICAL_ALIGN
 887         hex
 888         default "0x04000000" if FSL_BOOKE
 889         help
 890           This value puts the alignment restrictions on physical address
 891           where kernel is loaded and run from. Kernel is compiled for an
 892           address which meets above alignment restriction.
 893
 894 config TASK_SIZE_BOOL
 895         bool "Set custom user task size"
 896         depends on ADVANCED_OPTIONS
 897         help
 898           This option allows you to set the amount of virtual address space
 899           allocated to user tasks.  This can be useful in optimizing the
 900           virtual memory layout of the system.
 901
 902           Say N here unless you know what you are doing.
 903
 904 config TASK_SIZE
 905         hex "Size of user task space" if TASK_SIZE_BOOL
 906         default "0x80000000" if PPC_PREP || PPC_8xx
 907         default "0xc0000000"
 908
 909 config CONSISTENT_SIZE_BOOL
 910         bool "Set custom consistent memory pool size"
 911         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 912         help
 913           This option allows you to set the size of the
 914           consistent memory pool.  This pool of virtual memory
 915           is used to make consistent memory allocations.
 916
 917 config CONSISTENT_SIZE
 918         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 919         default "0x00200000" if NOT_COHERENT_CACHE
 920
 921 config PIN_TLB
 922         bool "Pinned Kernel TLBs (860 ONLY)"
 923         depends on ADVANCED_OPTIONS && 8xx
 924 endmenu
 925
 926 if PPC64
 927 config RELOCATABLE
 928         bool "Build a relocatable kernel"
 929         help
 930           This builds a kernel image that is capable of running anywhere
 931           in the RMA (real memory area) at any 16k-aligned base address.
 932           The kernel is linked as a position-independent executable (PIE)
 933           and contains dynamic relocations which are processed early
 934           in the bootup process.
 935
 936           One use is for the kexec on panic case where the recovery kernel
 937           must live at a different physical address than the primary
 938           kernel.
 939
 940 config PAGE_OFFSET
 941         hex
 942         default "0xc000000000000000"
 943 config KERNEL_START
 944         hex
 945         default "0xc000000000000000"
 946 config PHYSICAL_START
 947         hex
 948         default "0x00000000"
 949 endif
 950
 951 source "net/Kconfig"
 952
 953 source "drivers/Kconfig"
 954
 955 source "fs/Kconfig"
 956
 957 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 958
 959 source "lib/Kconfig"
 960
 961 source "arch/powerpc/Kconfig.debug"
 962
 963 source "security/Kconfig"
 964
 965 config KEYS_COMPAT
 966         bool
 967         depends on COMPAT && KEYS
 968         default y
 969
 970 source "crypto/Kconfig"
 971
 972 config PPC_CLOCK
 973         bool
 974         default n
 975         select HAVE_CLK
 976
 977 config PPC_LIB_RHEAP
 978         bool
 979
 980 source "arch/powerpc/kvm/Kconfig"