arch/powerpc/Kconfig

   1 # For a description of the syntax of this configuration file,
   2 # see Documentation/kbuild/kconfig-language.txt.
   3 #
   4
   5 mainmenu "Linux/PowerPC Kernel Configuration"
   6
   7 source "arch/powerpc/platforms/Kconfig.cputype"
   8
   9 config PPC32
  10         bool
  11         default y if !PPC64
  12
  13 config 64BIT
  14         bool
  15         default y if PPC64
  16
  17 config WORD_SIZE
  18         int
  19         default 64 if PPC64
  20         default 32 if !PPC64
  21
  22 config ARCH_PHYS_ADDR_T_64BIT
  23        def_bool PPC64 || PHYS_64BIT
  24
  25 config MMU
  26         bool
  27         default y
  28
  29 config GENERIC_CMOS_UPDATE
  30         def_bool y
  31
  32 config GENERIC_TIME
  33         def_bool y
  34
  35 config GENERIC_TIME_VSYSCALL
  36         def_bool y
  37
  38 config GENERIC_CLOCKEVENTS
  39         def_bool y
  40
  41 config GENERIC_HARDIRQS
  42         bool
  43         default y
  44
  45 config GENERIC_HARDIRQS_NO__DO_IRQ
  46         bool
  47         default y
  48
  49 config HAVE_SETUP_PER_CPU_AREA
  50         def_bool PPC64
  51
  52 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  53         def_bool PPC64
  54
  55 config IRQ_PER_CPU
  56         bool
  57         default y
  58
  59 config NR_IRQS
  60         int "Number of virtual interrupt numbers"
  61         range 32 32768
  62         default "512"
  63         help
  64           This defines the number of virtual interrupt numbers the kernel
  65           can manage. Virtual interrupt numbers are what you see in
  66           /proc/interrupts. If you configure your system to have too few,
  67           drivers will fail to load or worse - handle with care.
  68
  69 config STACKTRACE_SUPPORT
  70         bool
  71         default y
  72
  73 config HAVE_LATENCYTOP_SUPPORT
  74         def_bool y
  75
  76 config TRACE_IRQFLAGS_SUPPORT
  77         bool
  78         default y
  79
  80 config LOCKDEP_SUPPORT
  81         bool
  82         default y
  83
  84 config RWSEM_GENERIC_SPINLOCK
  85         bool
  86
  87 config RWSEM_XCHGADD_ALGORITHM
  88         bool
  89         default y
  90
  91 config GENERIC_LOCKBREAK
  92         bool
  93         default y
  94         depends on SMP && PREEMPT
  95
  96 config ARCH_HAS_ILOG2_U32
  97         bool
  98         default y
  99
 100 config ARCH_HAS_ILOG2_U64
 101         bool
 102         default y if 64BIT
 103
 104 config GENERIC_HWEIGHT
 105         bool
 106         default y
 107
 108 config GENERIC_FIND_NEXT_BIT
 109         bool
 110         default y
 111
 112 config GENERIC_GPIO
 113         bool
 114         help
 115           Generic GPIO API support
 116
 117 config ARCH_NO_VIRT_TO_BUS
 118         def_bool PPC64
 119
 120 config PPC
 121         bool
 122         default y
 123         select HAVE_FTRACE_MCOUNT_RECORD
 124         select HAVE_DYNAMIC_FTRACE
 125         select HAVE_FUNCTION_TRACER
 126         select HAVE_FUNCTION_GRAPH_TRACER
 127         select ARCH_WANT_OPTIONAL_GPIOLIB
 128         select HAVE_IDE
 129         select HAVE_IOREMAP_PROT
 130         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 131         select HAVE_KPROBES
 132         select HAVE_ARCH_KGDB
 133         select HAVE_KRETPROBES
 134         select HAVE_ARCH_TRACEHOOK
 135         select HAVE_LMB
 136         select HAVE_DMA_ATTRS
 137         select HAVE_DMA_API_DEBUG
 138         select USE_GENERIC_SMP_HELPERS if SMP
 139         select HAVE_OPROFILE
 140         select HAVE_SYSCALL_WRAPPERS if PPC64
 141         select GENERIC_ATOMIC64 if PPC32
 142         select HAVE_PERF_EVENTS
 143         select HAVE_REGS_AND_STACK_ACCESS_API
 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
 154 config SYSVIPC_COMPAT
 155         bool
 156         depends on COMPAT && SYSVIPC
 157         default y
 158
 159 # All PPC32s use generic nvram driver through ppc_md
 160 config GENERIC_NVRAM
 161         bool
 162         default y if PPC32
 163
 164 config SCHED_OMIT_FRAME_POINTER
 165         bool
 166         default y
 167
 168 config ARCH_MAY_HAVE_PC_FDC
 169         bool
 170         default !PPC_PSERIES || PCI
 171
 172 config PPC_OF
 173         def_bool y
 174
 175 config OF
 176         def_bool y
 177         select OF_FLATTREE
 178
 179 config PPC_UDBG_16550
 180         bool
 181         default n
 182
 183 config GENERIC_TBSYNC
 184         bool
 185         default y if PPC32 && SMP
 186         default n
 187
 188 config AUDIT_ARCH
 189         bool
 190         default y
 191
 192 config GENERIC_BUG
 193         bool
 194         default y
 195         depends on BUG
 196
 197 config SYS_SUPPORTS_APM_EMULATION
 198         default y if PMAC_APM_EMU
 199         bool
 200
 201 config DTC
 202        bool
 203        default y
 204
 205 config DEFAULT_UIMAGE
 206         bool
 207         help
 208           Used to allow a board to specify it wants a uImage built by default
 209         default n
 210
 211 config REDBOOT
 212         bool
 213
 214 config ARCH_HIBERNATION_POSSIBLE
 215         bool
 216         default y
 217
 218 config ARCH_SUSPEND_POSSIBLE
 219         def_bool y
 220         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 221                    PPC_85xx || PPC_86xx
 222
 223 config PPC_DCR_NATIVE
 224         bool
 225         default n
 226
 227 config PPC_DCR_MMIO
 228         bool
 229         default n
 230
 231 config PPC_DCR
 232         bool
 233         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 234         default y
 235
 236 config PPC_OF_PLATFORM_PCI
 237         bool
 238         depends on PCI
 239         depends on PPC64 # not supported on 32 bits yet
 240         default n
 241
 242 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 243         def_bool y
 244
 245 config PPC_ADV_DEBUG_REGS
 246         bool
 247         depends on 40x || BOOKE
 248         default y
 249
 250 config PPC_ADV_DEBUG_IACS
 251         int
 252         depends on PPC_ADV_DEBUG_REGS
 253         default 4 if 44x
 254         default 2
 255
 256 config PPC_ADV_DEBUG_DACS
 257         int
 258         depends on PPC_ADV_DEBUG_REGS
 259         default 2
 260
 261 config PPC_ADV_DEBUG_DVCS
 262         int
 263         depends on PPC_ADV_DEBUG_REGS
 264         default 2 if 44x
 265         default 0
 266
 267 config PPC_ADV_DEBUG_DAC_RANGE
 268         bool
 269         depends on PPC_ADV_DEBUG_REGS && 44x
 270         default y
 271
 272 source "init/Kconfig"
 273
 274 source "kernel/Kconfig.freezer"
 275
 276 source "arch/powerpc/sysdev/Kconfig"
 277 source "arch/powerpc/platforms/Kconfig"
 278
 279 menu "Kernel options"
 280
 281 config HIGHMEM
 282         bool "High memory support"
 283         depends on PPC32
 284
 285 source kernel/time/Kconfig
 286 source kernel/Kconfig.hz
 287 source kernel/Kconfig.preempt
 288 source "fs/Kconfig.binfmt"
 289
 290 config HUGETLB_PAGE_SIZE_VARIABLE
 291         bool
 292         depends on HUGETLB_PAGE
 293         default y
 294
 295 config MATH_EMULATION
 296         bool "Math emulation"
 297         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 298         ---help---
 299           Some PowerPC chips designed for embedded applications do not have
 300           a floating-point unit and therefore do not implement the
 301           floating-point instructions in the PowerPC instruction set.  If you
 302           say Y here, the kernel will include code to emulate a floating-point
 303           unit, which will allow programs that use floating-point
 304           instructions to run.
 305
 306 config 8XX_MINIMAL_FPEMU
 307         bool "Minimal math emulation for 8xx"
 308         depends on 8xx && !MATH_EMULATION
 309         help
 310           Older arch/ppc kernels still emulated a few floating point
 311           instructions such as load and store, even when full math
 312           emulation is disabled.  Say "Y" here if you want to preserve
 313           this behavior.
 314
 315           It is recommended that you build a soft-float userspace instead.
 316
 317 config IOMMU_HELPER
 318         def_bool PPC64
 319
 320 config SWIOTLB
 321         bool "SWIOTLB support"
 322         default n
 323         select IOMMU_HELPER
 324         ---help---
 325           Support for IO bounce buffering for systems without an IOMMU.
 326           This allows us to DMA to the full physical address space on
 327           platforms where the size of a physical address is larger
 328           than the bus address.  Not all platforms support this.
 329
 330 config HOTPLUG_CPU
 331         bool "Support for enabling/disabling CPUs"
 332         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 333         ---help---
 334           Say Y here to be able to disable and re-enable individual
 335           CPUs at runtime on SMP machines.
 336
 337           Say N if you are unsure.
 338
 339 config ARCH_CPU_PROBE_RELEASE
 340         def_bool y
 341         depends on HOTPLUG_CPU
 342
 343 config ARCH_ENABLE_MEMORY_HOTPLUG
 344         def_bool y
 345
 346 config ARCH_HAS_WALK_MEMORY
 347         def_bool y
 348
 349 config ARCH_ENABLE_MEMORY_HOTREMOVE
 350         def_bool y
 351
 352 config KEXEC
 353         bool "kexec system call (EXPERIMENTAL)"
 354         depends on (PPC_BOOK3S || (FSL_BOOKE && !SMP)) && EXPERIMENTAL
 355         help
 356           kexec is a system call that implements the ability to shutdown your
 357           current kernel, and to start another kernel.  It is like a reboot
 358           but it is independent of the system firmware.   And like a reboot
 359           you can start any kernel with it, not just Linux.
 360
 361           The name comes from the similarity to the exec system call.
 362
 363           It is an ongoing process to be certain the hardware in a machine
 364           is properly shutdown, so do not be surprised if this code does not
 365           initially work for you.  It may help to enable device hotplugging
 366           support.  As of this writing the exact hardware interface is
 367           strongly in flux, so no good recommendation can be made.
 368
 369 config CRASH_DUMP
 370         bool "Build a kdump crash kernel"
 371         depends on PPC64 || 6xx
 372         select RELOCATABLE if PPC64
 373         help
 374           Build a kernel suitable for use as a kdump capture kernel.
 375           The same kernel binary can be used as production kernel and dump
 376           capture kernel.
 377
 378 config PHYP_DUMP
 379         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 380         depends on PPC_PSERIES && EXPERIMENTAL
 381         help
 382           Hypervisor-assisted dump is meant to be a kdump replacement
 383           offering robustness and speed not possible without system
 384           hypervisor assistance.
 385
 386           If unsure, say "N"
 387
 388 config PPCBUG_NVRAM
 389         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 390         default y if PPC_PREP
 391
 392 config IRQ_ALL_CPUS
 393         bool "Distribute interrupts on all CPUs by default"
 394         depends on SMP && !MV64360
 395         help
 396           This option gives the kernel permission to distribute IRQs across
 397           multiple CPUs.  Saying N here will route all IRQs to the first
 398           CPU.  Generally saying Y is safe, although some problems have been
 399           reported with SMP Power Macintoshes with this option enabled.
 400
 401 config SPARSE_IRQ
 402         bool "Support sparse irq numbering"
 403         default y
 404         help
 405           This enables support for sparse irqs. This is useful for distro
 406           kernels that want to define a high CONFIG_NR_CPUS value but still
 407           want to have low kernel memory footprint on smaller machines.
 408
 409           ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
 410             out the irq_desc[] array in a more NUMA-friendly way. )
 411
 412           If you don't know what to do here, say Y.
 413
 414 config NUMA
 415         bool "NUMA support"
 416         depends on PPC64
 417         default y if SMP && PPC_PSERIES
 418
 419 config NODES_SHIFT
 420         int
 421         default "8" if PPC64
 422         default "4"
 423         depends on NEED_MULTIPLE_NODES
 424
 425 config MAX_ACTIVE_REGIONS
 426         int
 427         default "256" if PPC64
 428         default "32"
 429
 430 config ARCH_SELECT_MEMORY_MODEL
 431         def_bool y
 432         depends on PPC64
 433
 434 config ARCH_FLATMEM_ENABLE
 435         def_bool y
 436         depends on (PPC64 && !NUMA) || PPC32
 437
 438 config ARCH_SPARSEMEM_ENABLE
 439         def_bool y
 440         depends on PPC64
 441         select SPARSEMEM_VMEMMAP_ENABLE
 442
 443 config ARCH_SPARSEMEM_DEFAULT
 444         def_bool y
 445         depends on (SMP && PPC_PSERIES) || PPC_PS3
 446
 447 config ARCH_POPULATES_NODE_MAP
 448         def_bool y
 449
 450 config SYS_SUPPORTS_HUGETLBFS
 451        def_bool y
 452        depends on PPC_BOOK3S_64
 453
 454 source "mm/Kconfig"
 455
 456 config ARCH_MEMORY_PROBE
 457         def_bool y
 458         depends on MEMORY_HOTPLUG
 459
 460 # Some NUMA nodes have memory ranges that span
 461 # other nodes.  Even though a pfn is valid and
 462 # between a node's start and end pfns, it may not
 463 # reside on that node.  See memmap_init_zone()
 464 # for details.
 465 config NODES_SPAN_OTHER_NODES
 466         def_bool y
 467         depends on NEED_MULTIPLE_NODES
 468
 469 config PPC_HAS_HASH_64K
 470         bool
 471         depends on PPC64
 472         default n
 473
 474 config STDBINUTILS
 475         bool "Using standard binutils settings"
 476         depends on 44x
 477         default y
 478         help
 479           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 480           Note, that kernel will be able to run only those applications,
 481           which had been compiled using binutils later than 2.17.50.0.3 with
 482           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 483           the older binutils, you can patch them with a trivial patch, which
 484           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 485
 486 choice
 487         prompt "Page size"
 488         default PPC_4K_PAGES
 489         help
 490           Select the kernel logical page size. Increasing the page size
 491           will reduce software overhead at each page boundary, allow
 492           hardware prefetch mechanisms to be more effective, and allow
 493           larger dma transfers increasing IO efficiency and reducing
 494           overhead. However the utilization of memory will increase.
 495           For example, each cached file will using a multiple of the
 496           page size to hold its contents and the difference between the
 497           end of file and the end of page is wasted.
 498
 499           Some dedicated systems, such as software raid serving with
 500           accelerated calculations, have shown significant increases.
 501
 502           If you configure a 64 bit kernel for 64k pages but the
 503           processor does not support them, then the kernel will simulate
 504           them with 4k pages, loading them on demand, but with the
 505           reduced software overhead and larger internal fragmentation.
 506           For the 32 bit kernel, a large page option will not be offered
 507           unless it is supported by the configured processor.
 508
 509           If unsure, choose 4K_PAGES.
 510
 511 config PPC_4K_PAGES
 512         bool "4k page size"
 513
 514 config PPC_16K_PAGES
 515         bool "16k page size" if 44x
 516
 517 config PPC_64K_PAGES
 518         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 519         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 520
 521 config PPC_256K_PAGES
 522         bool "256k page size" if 44x
 523         depends on !STDBINUTILS
 524         help
 525           Make the page size 256k.
 526
 527           As the ELF standard only requires alignment to support page
 528           sizes up to 64k, you will need to compile all of your user
 529           space applications with a non-standard binutils settings
 530           (see the STDBINUTILS description for details).
 531
 532           Say N unless you know what you are doing.
 533
 534 endchoice
 535
 536 config FORCE_MAX_ZONEORDER
 537         int "Maximum zone order"
 538         range 9 64 if PPC64 && PPC_64K_PAGES
 539         default "9" if PPC64 && PPC_64K_PAGES
 540         range 13 64 if PPC64 && !PPC_64K_PAGES
 541         default "13" if PPC64 && !PPC_64K_PAGES
 542         range 9 64 if PPC32 && PPC_16K_PAGES
 543         default "9" if PPC32 && PPC_16K_PAGES
 544         range 7 64 if PPC32 && PPC_64K_PAGES
 545         default "7" if PPC32 && PPC_64K_PAGES
 546         range 5 64 if PPC32 && PPC_256K_PAGES
 547         default "5" if PPC32 && PPC_256K_PAGES
 548         range 11 64
 549         default "11"
 550         help
 551           The kernel memory allocator divides physically contiguous memory
 552           blocks into "zones", where each zone is a power of two number of
 553           pages.  This option selects the largest power of two that the kernel
 554           keeps in the memory allocator.  If you need to allocate very large
 555           blocks of physically contiguous memory, then you may need to
 556           increase this value.
 557
 558           This config option is actually maximum order plus one. For example,
 559           a value of 11 means that the largest free memory block is 2^10 pages.
 560
 561           The page size is not necessarily 4KB.  For example, on 64-bit
 562           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 563           this in mind when choosing a value for this option.
 564
 565 config PPC_SUBPAGE_PROT
 566         bool "Support setting protections for 4k subpages"
 567         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 568         help
 569           This option adds support for a system call to allow user programs
 570           to set access permissions (read/write, readonly, or no access)
 571           on the 4k subpages of each 64k page.
 572
 573 config SCHED_SMT
 574         bool "SMT (Hyperthreading) scheduler support"
 575         depends on PPC64 && SMP
 576         help
 577           SMT scheduler support improves the CPU scheduler's decision making
 578           when dealing with POWER5 cpus at a cost of slightly increased
 579           overhead in some places. If unsure say N here.
 580
 581 config PROC_DEVICETREE
 582         bool "Support for device tree in /proc"
 583         depends on PROC_FS
 584         help
 585           This option adds a device-tree directory under /proc which contains
 586           an image of the device tree that the kernel copies from Open
 587           Firmware or other boot firmware. If unsure, say Y here.
 588
 589 config CMDLINE_BOOL
 590         bool "Default bootloader kernel arguments"
 591
 592 config CMDLINE
 593         string "Initial kernel command string"
 594         depends on CMDLINE_BOOL
 595         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 596         help
 597           On some platforms, there is currently no way for the boot loader to
 598           pass arguments to the kernel. For these platforms, you can supply
 599           some command-line options at build time by entering them here.  In
 600           most cases you will need to specify the root device here.
 601
 602 config EXTRA_TARGETS
 603         string "Additional default image types"
 604         help
 605           List additional targets to be built by the bootwrapper here (separated
 606           by spaces).  This is useful for targets that depend of device tree
 607           files in the .dts directory.
 608
 609           Targets in this list will be build as part of the default build
 610           target, or when the user does a 'make zImage' or a
 611           'make zImage.initrd'.
 612
 613           If unsure, leave blank
 614
 615 if !44x || BROKEN
 616 config ARCH_WANTS_FREEZER_CONTROL
 617         def_bool y
 618         depends on ADB_PMU
 619
 620 source kernel/power/Kconfig
 621 endif
 622
 623 config SECCOMP
 624         bool "Enable seccomp to safely compute untrusted bytecode"
 625         depends on PROC_FS
 626         default y
 627         help
 628           This kernel feature is useful for number crunching applications
 629           that may need to compute untrusted bytecode during their
 630           execution. By using pipes or other transports made available to
 631           the process as file descriptors supporting the read/write
 632           syscalls, it's possible to isolate those applications in
 633           their own address space using seccomp. Once seccomp is
 634           enabled via /proc/<pid>/seccomp, it cannot be disabled
 635           and the task is only allowed to execute a few safe syscalls
 636           defined by each seccomp mode.
 637
 638           If unsure, say Y. Only embedded should say N here.
 639
 640 endmenu
 641
 642 config ISA_DMA_API
 643         bool
 644         default !PPC_ISERIES || PCI
 645
 646 menu "Bus options"
 647
 648 config ISA
 649         bool "Support for ISA-bus hardware"
 650         depends on PPC_PREP || PPC_CHRP
 651         select PPC_I8259
 652         help
 653           Find out whether you have ISA slots on your motherboard.  ISA is the
 654           name of a bus system, i.e. the way the CPU talks to the other stuff
 655           inside your box.  If you have an Apple machine, say N here; if you
 656           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 657           you have an embedded board, consult your board documentation.
 658
 659 config ZONE_DMA
 660         bool
 661         default y
 662
 663 config NEED_DMA_MAP_STATE
 664         def_bool (PPC64 || NOT_COHERENT_CACHE)
 665
 666 config NEED_SG_DMA_LENGTH
 667         def_bool y
 668
 669 config GENERIC_ISA_DMA
 670         bool
 671         depends on PPC64 || POWER4 || 6xx && !CPM2
 672         default y
 673
 674 config PPC_INDIRECT_PCI
 675         bool
 676         depends on PCI
 677         default y if 40x || 44x
 678         default n
 679
 680 config EISA
 681         bool
 682
 683 config SBUS
 684         bool
 685
 686 config FSL_SOC
 687         bool
 688
 689 config FSL_PCI
 690         bool
 691         select PPC_INDIRECT_PCI
 692         select PCI_QUIRKS
 693
 694 config FSL_PMC
 695         bool
 696         default y
 697         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 698         help
 699           Freescale MPC85xx/MPC86xx power management controller support
 700           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 701
 702 config 4xx_SOC
 703         bool
 704
 705 config FSL_LBC
 706         bool
 707         help
 708           Freescale Localbus support
 709
 710 config FSL_GTM
 711         bool
 712         depends on PPC_83xx || QUICC_ENGINE || CPM2
 713         help
 714           Freescale General-purpose Timers support
 715
 716 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 717 config MCA
 718         bool
 719
 720 # Platforms that what PCI turned unconditionally just do select PCI
 721 # in their config node.  Platforms that want to choose at config
 722 # time should select PPC_PCI_CHOICE
 723 config PPC_PCI_CHOICE
 724         bool
 725
 726 config PCI
 727         bool "PCI support" if PPC_PCI_CHOICE
 728         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 729                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 730         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 731         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 732         select ARCH_SUPPORTS_MSI
 733         help
 734           Find out whether your system includes a PCI bus. PCI is the name of
 735           a bus system, i.e. the way the CPU talks to the other stuff inside
 736           your box.  If you say Y here, the kernel will include drivers and
 737           infrastructure code to support PCI bus devices.
 738
 739 config PCI_DOMAINS
 740         def_bool PCI
 741
 742 config PCI_SYSCALL
 743         def_bool PCI
 744
 745 config PCI_QSPAN
 746         bool "QSpan PCI"
 747         depends on !4xx && !CPM2 && 8xx
 748         select PPC_I8259
 749         help
 750           Say Y here if you have a system based on a Motorola 8xx-series
 751           embedded processor with a QSPAN PCI interface, otherwise say N.
 752
 753 config PCI_8260
 754         bool
 755         depends on PCI && 8260
 756         select PPC_INDIRECT_PCI
 757         default y
 758
 759 config 8260_PCI9
 760         bool "Enable workaround for MPC826x erratum PCI 9"
 761         depends on PCI_8260 && !8272
 762         default y
 763
 764 choice
 765         prompt "IDMA channel for PCI 9 workaround"
 766         depends on 8260_PCI9
 767
 768 config 8260_PCI9_IDMA1
 769         bool "IDMA1"
 770
 771 config 8260_PCI9_IDMA2
 772         bool "IDMA2"
 773
 774 config 8260_PCI9_IDMA3
 775         bool "IDMA3"
 776
 777 config 8260_PCI9_IDMA4
 778         bool "IDMA4"
 779
 780 endchoice
 781
 782 source "drivers/pci/pcie/Kconfig"
 783
 784 source "drivers/pci/Kconfig"
 785
 786 source "drivers/pcmcia/Kconfig"
 787
 788 source "drivers/pci/hotplug/Kconfig"
 789
 790 config HAS_RAPIDIO
 791         bool
 792         default n
 793
 794 config RAPIDIO
 795         bool "RapidIO support"
 796         depends on HAS_RAPIDIO
 797         help
 798           If you say Y here, the kernel will include drivers and
 799           infrastructure code to support RapidIO interconnect devices.
 800
 801 source "drivers/rapidio/Kconfig"
 802
 803 endmenu
 804
 805 menu "Advanced setup"
 806         depends on PPC32
 807
 808 config ADVANCED_OPTIONS
 809         bool "Prompt for advanced kernel configuration options"
 810         help
 811           This option will enable prompting for a variety of advanced kernel
 812           configuration options.  These options can cause the kernel to not
 813           work if they are set incorrectly, but can be used to optimize certain
 814           aspects of kernel memory management.
 815
 816           Unless you know what you are doing, say N here.
 817
 818 comment "Default settings for advanced configuration options are used"
 819         depends on !ADVANCED_OPTIONS
 820
 821 config LOWMEM_SIZE_BOOL
 822         bool "Set maximum low memory"
 823         depends on ADVANCED_OPTIONS
 824         help
 825           This option allows you to set the maximum amount of memory which
 826           will be used as "low memory", that is, memory which the kernel can
 827           access directly, without having to set up a kernel virtual mapping.
 828           This can be useful in optimizing the layout of kernel virtual
 829           memory.
 830
 831           Say N here unless you know what you are doing.
 832
 833 config LOWMEM_SIZE
 834         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 835         default "0x30000000"
 836
 837 config LOWMEM_CAM_NUM_BOOL
 838         bool "Set number of CAMs to use to map low memory"
 839         depends on ADVANCED_OPTIONS && FSL_BOOKE
 840         help
 841           This option allows you to set the maximum number of CAM slots that
 842           will be used to map low memory.  There are a limited number of slots
 843           available and even more limited number that will fit in the L1 MMU.
 844           However, using more entries will allow mapping more low memory.  This
 845           can be useful in optimizing the layout of kernel virtual memory.
 846
 847           Say N here unless you know what you are doing.
 848
 849 config LOWMEM_CAM_NUM
 850         depends on FSL_BOOKE
 851         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 852         default 3
 853
 854 config RELOCATABLE
 855         bool "Build a relocatable kernel (EXPERIMENTAL)"
 856         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 857         help
 858           This builds a kernel image that is capable of running at the
 859           location the kernel is loaded at (some alignment restrictions may
 860           exist).
 861
 862           One use is for the kexec on panic case where the recovery kernel
 863           must live at a different physical address than the primary
 864           kernel.
 865
 866           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 867           it has been loaded at and the compile time physical addresses
 868           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 869           setting can still be useful to bootwrappers that need to know the
 870           load location of the kernel (eg. u-boot/mkimage).
 871
 872 config PAGE_OFFSET_BOOL
 873         bool "Set custom page offset address"
 874         depends on ADVANCED_OPTIONS
 875         help
 876           This option allows you to set the kernel virtual address at which
 877           the kernel will map low memory.  This can be useful in optimizing
 878           the virtual memory layout of the system.
 879
 880           Say N here unless you know what you are doing.
 881
 882 config PAGE_OFFSET
 883         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 884         default "0xc0000000"
 885
 886 config KERNEL_START_BOOL
 887         bool "Set custom kernel base address"
 888         depends on ADVANCED_OPTIONS
 889         help
 890           This option allows you to set the kernel virtual address at which
 891           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 892           however there are times (like kdump) that one might not want them
 893           to be the same.
 894
 895           Say N here unless you know what you are doing.
 896
 897 config KERNEL_START
 898         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 899         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 900         default "0xc2000000" if CRASH_DUMP
 901         default "0xc0000000"
 902
 903 config PHYSICAL_START_BOOL
 904         bool "Set physical address where the kernel is loaded"
 905         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 906         help
 907           This gives the physical address where the kernel is loaded.
 908
 909           Say N here unless you know what you are doing.
 910
 911 config PHYSICAL_START
 912         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 913         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP
 914         default "0x00000000"
 915
 916 config PHYSICAL_ALIGN
 917         hex
 918         default "0x04000000" if FSL_BOOKE
 919         help
 920           This value puts the alignment restrictions on physical address
 921           where kernel is loaded and run from. Kernel is compiled for an
 922           address which meets above alignment restriction.
 923
 924 config TASK_SIZE_BOOL
 925         bool "Set custom user task size"
 926         depends on ADVANCED_OPTIONS
 927         help
 928           This option allows you to set the amount of virtual address space
 929           allocated to user tasks.  This can be useful in optimizing the
 930           virtual memory layout of the system.
 931
 932           Say N here unless you know what you are doing.
 933
 934 config TASK_SIZE
 935         hex "Size of user task space" if TASK_SIZE_BOOL
 936         default "0x80000000" if PPC_PREP || PPC_8xx
 937         default "0xc0000000"
 938
 939 config CONSISTENT_SIZE_BOOL
 940         bool "Set custom consistent memory pool size"
 941         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 942         help
 943           This option allows you to set the size of the
 944           consistent memory pool.  This pool of virtual memory
 945           is used to make consistent memory allocations.
 946
 947 config CONSISTENT_SIZE
 948         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 949         default "0x00200000" if NOT_COHERENT_CACHE
 950
 951 config PIN_TLB
 952         bool "Pinned Kernel TLBs (860 ONLY)"
 953         depends on ADVANCED_OPTIONS && 8xx
 954 endmenu
 955
 956 if PPC64
 957 config RELOCATABLE
 958         bool "Build a relocatable kernel"
 959         help
 960           This builds a kernel image that is capable of running anywhere
 961           in the RMA (real memory area) at any 16k-aligned base address.
 962           The kernel is linked as a position-independent executable (PIE)
 963           and contains dynamic relocations which are processed early
 964           in the bootup process.
 965
 966           One use is for the kexec on panic case where the recovery kernel
 967           must live at a different physical address than the primary
 968           kernel.
 969
 970 config PAGE_OFFSET
 971         hex
 972         default "0xc000000000000000"
 973 config KERNEL_START
 974         hex
 975         default "0xc000000000000000"
 976 config PHYSICAL_START
 977         hex
 978         default "0x00000000"
 979 endif
 980
 981 source "net/Kconfig"
 982
 983 source "drivers/Kconfig"
 984
 985 source "fs/Kconfig"
 986
 987 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 988
 989 source "lib/Kconfig"
 990
 991 source "arch/powerpc/Kconfig.debug"
 992
 993 source "security/Kconfig"
 994
 995 config KEYS_COMPAT
 996         bool
 997         depends on COMPAT && KEYS
 998         default y
 999
1000 source "crypto/Kconfig"
1001
1002 config PPC_CLOCK
1003         bool
1004         default n
1005         select HAVE_CLK
1006
1007 config PPC_LIB_RHEAP
1008         bool
1009
1010 source "arch/powerpc/kvm/Kconfig"