arch/powerpc/Kconfig

   1 source "arch/powerpc/platforms/Kconfig.cputype"
   2
   3 config PPC32
   4         bool
   5         default y if !PPC64
   6
   7 config 64BIT
   8         bool
   9         default y if PPC64
  10
  11 config WORD_SIZE
  12         int
  13         default 64 if PPC64
  14         default 32 if !PPC64
  15
  16 config ARCH_PHYS_ADDR_T_64BIT
  17        def_bool PPC64 || PHYS_64BIT
  18
  19 config MMU
  20         bool
  21         default y
  22
  23 config GENERIC_CMOS_UPDATE
  24         def_bool y
  25
  26 config GENERIC_TIME_VSYSCALL
  27         def_bool y
  28
  29 config GENERIC_CLOCKEVENTS
  30         def_bool y
  31
  32 config GENERIC_HARDIRQS
  33         bool
  34         default y
  35
  36 config GENERIC_HARDIRQS_NO__DO_IRQ
  37         bool
  38         default y
  39
  40 config HAVE_SETUP_PER_CPU_AREA
  41         def_bool PPC64
  42
  43 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  44         def_bool PPC64
  45
  46 config IRQ_PER_CPU
  47         bool
  48         default y
  49
  50 config NR_IRQS
  51         int "Number of virtual interrupt numbers"
  52         range 32 32768
  53         default "512"
  54         help
  55           This defines the number of virtual interrupt numbers the kernel
  56           can manage. Virtual interrupt numbers are what you see in
  57           /proc/interrupts. If you configure your system to have too few,
  58           drivers will fail to load or worse - handle with care.
  59
  60 config STACKTRACE_SUPPORT
  61         bool
  62         default y
  63
  64 config HAVE_LATENCYTOP_SUPPORT
  65         def_bool y
  66
  67 config TRACE_IRQFLAGS_SUPPORT
  68         bool
  69         default y
  70
  71 config LOCKDEP_SUPPORT
  72         bool
  73         default y
  74
  75 config RWSEM_GENERIC_SPINLOCK
  76         bool
  77
  78 config RWSEM_XCHGADD_ALGORITHM
  79         bool
  80         default y
  81
  82 config GENERIC_LOCKBREAK
  83         bool
  84         default y
  85         depends on SMP && PREEMPT
  86
  87 config ARCH_HAS_ILOG2_U32
  88         bool
  89         default y
  90
  91 config ARCH_HAS_ILOG2_U64
  92         bool
  93         default y if 64BIT
  94
  95 config GENERIC_HWEIGHT
  96         bool
  97         default y
  98
  99 config GENERIC_FIND_NEXT_BIT
 100         bool
 101         default y
 102
 103 config GENERIC_GPIO
 104         bool
 105         help
 106           Generic GPIO API support
 107
 108 config ARCH_NO_VIRT_TO_BUS
 109         def_bool PPC64
 110
 111 config PPC
 112         bool
 113         default y
 114         select OF
 115         select OF_FLATTREE
 116         select HAVE_FTRACE_MCOUNT_RECORD
 117         select HAVE_DYNAMIC_FTRACE
 118         select HAVE_FUNCTION_TRACER
 119         select HAVE_FUNCTION_GRAPH_TRACER
 120         select ARCH_WANT_OPTIONAL_GPIOLIB
 121         select HAVE_IDE
 122         select HAVE_IOREMAP_PROT
 123         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 124         select HAVE_KPROBES
 125         select HAVE_ARCH_KGDB
 126         select HAVE_KRETPROBES
 127         select HAVE_ARCH_TRACEHOOK
 128         select HAVE_MEMBLOCK
 129         select HAVE_DMA_ATTRS
 130         select HAVE_DMA_API_DEBUG
 131         select USE_GENERIC_SMP_HELPERS if SMP
 132         select HAVE_OPROFILE
 133         select HAVE_SYSCALL_WRAPPERS if PPC64
 134         select GENERIC_ATOMIC64 if PPC32
 135         select HAVE_PERF_EVENTS
 136         select HAVE_REGS_AND_STACK_ACCESS_API
 137         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 138
 139 config EARLY_PRINTK
 140         bool
 141         default y
 142
 143 config COMPAT
 144         bool
 145         default y if PPC64
 146         select COMPAT_BINFMT_ELF
 147
 148 config SYSVIPC_COMPAT
 149         bool
 150         depends on COMPAT && SYSVIPC
 151         default y
 152
 153 # All PPC32s use generic nvram driver through ppc_md
 154 config GENERIC_NVRAM
 155         bool
 156         default y if PPC32
 157
 158 config SCHED_OMIT_FRAME_POINTER
 159         bool
 160         default y
 161
 162 config ARCH_MAY_HAVE_PC_FDC
 163         bool
 164         default !PPC_PSERIES || PCI
 165
 166 config PPC_OF
 167         def_bool y
 168
 169 config PPC_UDBG_16550
 170         bool
 171         default n
 172
 173 config GENERIC_TBSYNC
 174         bool
 175         default y if PPC32 && SMP
 176         default n
 177
 178 config AUDIT_ARCH
 179         bool
 180         default y
 181
 182 config GENERIC_BUG
 183         bool
 184         default y
 185         depends on BUG
 186
 187 config SYS_SUPPORTS_APM_EMULATION
 188         default y if PMAC_APM_EMU
 189         bool
 190
 191 config DEFAULT_UIMAGE
 192         bool
 193         help
 194           Used to allow a board to specify it wants a uImage built by default
 195         default n
 196
 197 config REDBOOT
 198         bool
 199
 200 config ARCH_HIBERNATION_POSSIBLE
 201         bool
 202         default y
 203
 204 config ARCH_SUSPEND_POSSIBLE
 205         def_bool y
 206         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 207                    PPC_85xx || PPC_86xx || PPC_PSERIES
 208
 209 config PPC_DCR_NATIVE
 210         bool
 211         default n
 212
 213 config PPC_DCR_MMIO
 214         bool
 215         default n
 216
 217 config PPC_DCR
 218         bool
 219         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 220         default y
 221
 222 config PPC_OF_PLATFORM_PCI
 223         bool
 224         depends on PCI
 225         depends on PPC64 # not supported on 32 bits yet
 226         default n
 227
 228 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 229         def_bool y
 230
 231 config PPC_ADV_DEBUG_REGS
 232         bool
 233         depends on 40x || BOOKE
 234         default y
 235
 236 config PPC_ADV_DEBUG_IACS
 237         int
 238         depends on PPC_ADV_DEBUG_REGS
 239         default 4 if 44x
 240         default 2
 241
 242 config PPC_ADV_DEBUG_DACS
 243         int
 244         depends on PPC_ADV_DEBUG_REGS
 245         default 2
 246
 247 config PPC_ADV_DEBUG_DVCS
 248         int
 249         depends on PPC_ADV_DEBUG_REGS
 250         default 2 if 44x
 251         default 0
 252
 253 config PPC_ADV_DEBUG_DAC_RANGE
 254         bool
 255         depends on PPC_ADV_DEBUG_REGS && 44x
 256         default y
 257
 258 source "init/Kconfig"
 259
 260 source "kernel/Kconfig.freezer"
 261
 262 source "arch/powerpc/sysdev/Kconfig"
 263 source "arch/powerpc/platforms/Kconfig"
 264
 265 menu "Kernel options"
 266
 267 config HIGHMEM
 268         bool "High memory support"
 269         depends on PPC32
 270
 271 source kernel/time/Kconfig
 272 source kernel/Kconfig.hz
 273 source kernel/Kconfig.preempt
 274 source "fs/Kconfig.binfmt"
 275
 276 config HUGETLB_PAGE_SIZE_VARIABLE
 277         bool
 278         depends on HUGETLB_PAGE
 279         default y
 280
 281 config MATH_EMULATION
 282         bool "Math emulation"
 283         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 284         ---help---
 285           Some PowerPC chips designed for embedded applications do not have
 286           a floating-point unit and therefore do not implement the
 287           floating-point instructions in the PowerPC instruction set.  If you
 288           say Y here, the kernel will include code to emulate a floating-point
 289           unit, which will allow programs that use floating-point
 290           instructions to run.
 291
 292 config 8XX_MINIMAL_FPEMU
 293         bool "Minimal math emulation for 8xx"
 294         depends on 8xx && !MATH_EMULATION
 295         help
 296           Older arch/ppc kernels still emulated a few floating point
 297           instructions such as load and store, even when full math
 298           emulation is disabled.  Say "Y" here if you want to preserve
 299           this behavior.
 300
 301           It is recommended that you build a soft-float userspace instead.
 302
 303 config IOMMU_HELPER
 304         def_bool PPC64
 305
 306 config SWIOTLB
 307         bool "SWIOTLB support"
 308         default n
 309         select IOMMU_HELPER
 310         ---help---
 311           Support for IO bounce buffering for systems without an IOMMU.
 312           This allows us to DMA to the full physical address space on
 313           platforms where the size of a physical address is larger
 314           than the bus address.  Not all platforms support this.
 315
 316 config HOTPLUG_CPU
 317         bool "Support for enabling/disabling CPUs"
 318         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 319         ---help---
 320           Say Y here to be able to disable and re-enable individual
 321           CPUs at runtime on SMP machines.
 322
 323           Say N if you are unsure.
 324
 325 config ARCH_CPU_PROBE_RELEASE
 326         def_bool y
 327         depends on HOTPLUG_CPU
 328
 329 config ARCH_ENABLE_MEMORY_HOTPLUG
 330         def_bool y
 331
 332 config ARCH_HAS_WALK_MEMORY
 333         def_bool y
 334
 335 config ARCH_ENABLE_MEMORY_HOTREMOVE
 336         def_bool y
 337
 338 config KEXEC
 339         bool "kexec system call (EXPERIMENTAL)"
 340         depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
 341         help
 342           kexec is a system call that implements the ability to shutdown your
 343           current kernel, and to start another kernel.  It is like a reboot
 344           but it is independent of the system firmware.   And like a reboot
 345           you can start any kernel with it, not just Linux.
 346
 347           The name comes from the similarity to the exec system call.
 348
 349           It is an ongoing process to be certain the hardware in a machine
 350           is properly shutdown, so do not be surprised if this code does not
 351           initially work for you.  It may help to enable device hotplugging
 352           support.  As of this writing the exact hardware interface is
 353           strongly in flux, so no good recommendation can be made.
 354
 355 config CRASH_DUMP
 356         bool "Build a kdump crash kernel"
 357         depends on PPC64 || 6xx || FSL_BOOKE
 358         select RELOCATABLE if PPC64 || FSL_BOOKE
 359         help
 360           Build a kernel suitable for use as a kdump capture kernel.
 361           The same kernel binary can be used as production kernel and dump
 362           capture kernel.
 363
 364 config PHYP_DUMP
 365         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 366         depends on PPC_PSERIES && EXPERIMENTAL
 367         help
 368           Hypervisor-assisted dump is meant to be a kdump replacement
 369           offering robustness and speed not possible without system
 370           hypervisor assistance.
 371
 372           If unsure, say "N"
 373
 374 config PPCBUG_NVRAM
 375         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 376         default y if PPC_PREP
 377
 378 config IRQ_ALL_CPUS
 379         bool "Distribute interrupts on all CPUs by default"
 380         depends on SMP && !MV64360
 381         help
 382           This option gives the kernel permission to distribute IRQs across
 383           multiple CPUs.  Saying N here will route all IRQs to the first
 384           CPU.  Generally saying Y is safe, although some problems have been
 385           reported with SMP Power Macintoshes with this option enabled.
 386
 387 config SPARSE_IRQ
 388         bool "Support sparse irq numbering"
 389         default n
 390         help
 391           This enables support for sparse irqs. This is useful for distro
 392           kernels that want to define a high CONFIG_NR_CPUS value but still
 393           want to have low kernel memory footprint on smaller machines.
 394
 395           ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
 396             out the irq_desc[] array in a more NUMA-friendly way. )
 397
 398           If you don't know what to do here, say N.
 399
 400 config NUMA
 401         bool "NUMA support"
 402         depends on PPC64
 403         default y if SMP && PPC_PSERIES
 404
 405 config NODES_SHIFT
 406         int
 407         default "8" if PPC64
 408         default "4"
 409         depends on NEED_MULTIPLE_NODES
 410
 411 config MAX_ACTIVE_REGIONS
 412         int
 413         default "256" if PPC64
 414         default "32"
 415
 416 config ARCH_SELECT_MEMORY_MODEL
 417         def_bool y
 418         depends on PPC64
 419
 420 config ARCH_FLATMEM_ENABLE
 421         def_bool y
 422         depends on (PPC64 && !NUMA) || PPC32
 423
 424 config ARCH_SPARSEMEM_ENABLE
 425         def_bool y
 426         depends on PPC64
 427         select SPARSEMEM_VMEMMAP_ENABLE
 428
 429 config ARCH_SPARSEMEM_DEFAULT
 430         def_bool y
 431         depends on (SMP && PPC_PSERIES) || PPC_PS3
 432
 433 config ARCH_POPULATES_NODE_MAP
 434         def_bool y
 435
 436 config SYS_SUPPORTS_HUGETLBFS
 437        def_bool y
 438        depends on PPC_BOOK3S_64
 439
 440 source "mm/Kconfig"
 441
 442 config ARCH_MEMORY_PROBE
 443         def_bool y
 444         depends on MEMORY_HOTPLUG
 445
 446 # Some NUMA nodes have memory ranges that span
 447 # other nodes.  Even though a pfn is valid and
 448 # between a node's start and end pfns, it may not
 449 # reside on that node.  See memmap_init_zone()
 450 # for details.
 451 config NODES_SPAN_OTHER_NODES
 452         def_bool y
 453         depends on NEED_MULTIPLE_NODES
 454
 455 config PPC_HAS_HASH_64K
 456         bool
 457         depends on PPC64
 458         default n
 459
 460 config STDBINUTILS
 461         bool "Using standard binutils settings"
 462         depends on 44x
 463         default y
 464         help
 465           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 466           Note, that kernel will be able to run only those applications,
 467           which had been compiled using binutils later than 2.17.50.0.3 with
 468           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 469           the older binutils, you can patch them with a trivial patch, which
 470           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 471
 472 choice
 473         prompt "Page size"
 474         default PPC_4K_PAGES
 475         help
 476           Select the kernel logical page size. Increasing the page size
 477           will reduce software overhead at each page boundary, allow
 478           hardware prefetch mechanisms to be more effective, and allow
 479           larger dma transfers increasing IO efficiency and reducing
 480           overhead. However the utilization of memory will increase.
 481           For example, each cached file will using a multiple of the
 482           page size to hold its contents and the difference between the
 483           end of file and the end of page is wasted.
 484
 485           Some dedicated systems, such as software raid serving with
 486           accelerated calculations, have shown significant increases.
 487
 488           If you configure a 64 bit kernel for 64k pages but the
 489           processor does not support them, then the kernel will simulate
 490           them with 4k pages, loading them on demand, but with the
 491           reduced software overhead and larger internal fragmentation.
 492           For the 32 bit kernel, a large page option will not be offered
 493           unless it is supported by the configured processor.
 494
 495           If unsure, choose 4K_PAGES.
 496
 497 config PPC_4K_PAGES
 498         bool "4k page size"
 499
 500 config PPC_16K_PAGES
 501         bool "16k page size" if 44x
 502
 503 config PPC_64K_PAGES
 504         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 505         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 506
 507 config PPC_256K_PAGES
 508         bool "256k page size" if 44x
 509         depends on !STDBINUTILS
 510         help
 511           Make the page size 256k.
 512
 513           As the ELF standard only requires alignment to support page
 514           sizes up to 64k, you will need to compile all of your user
 515           space applications with a non-standard binutils settings
 516           (see the STDBINUTILS description for details).
 517
 518           Say N unless you know what you are doing.
 519
 520 endchoice
 521
 522 config FORCE_MAX_ZONEORDER
 523         int "Maximum zone order"
 524         range 9 64 if PPC64 && PPC_64K_PAGES
 525         default "9" if PPC64 && PPC_64K_PAGES
 526         range 13 64 if PPC64 && !PPC_64K_PAGES
 527         default "13" if PPC64 && !PPC_64K_PAGES
 528         range 9 64 if PPC32 && PPC_16K_PAGES
 529         default "9" if PPC32 && PPC_16K_PAGES
 530         range 7 64 if PPC32 && PPC_64K_PAGES
 531         default "7" if PPC32 && PPC_64K_PAGES
 532         range 5 64 if PPC32 && PPC_256K_PAGES
 533         default "5" if PPC32 && PPC_256K_PAGES
 534         range 11 64
 535         default "11"
 536         help
 537           The kernel memory allocator divides physically contiguous memory
 538           blocks into "zones", where each zone is a power of two number of
 539           pages.  This option selects the largest power of two that the kernel
 540           keeps in the memory allocator.  If you need to allocate very large
 541           blocks of physically contiguous memory, then you may need to
 542           increase this value.
 543
 544           This config option is actually maximum order plus one. For example,
 545           a value of 11 means that the largest free memory block is 2^10 pages.
 546
 547           The page size is not necessarily 4KB.  For example, on 64-bit
 548           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 549           this in mind when choosing a value for this option.
 550
 551 config PPC_SUBPAGE_PROT
 552         bool "Support setting protections for 4k subpages"
 553         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 554         help
 555           This option adds support for a system call to allow user programs
 556           to set access permissions (read/write, readonly, or no access)
 557           on the 4k subpages of each 64k page.
 558
 559 config SCHED_SMT
 560         bool "SMT (Hyperthreading) scheduler support"
 561         depends on PPC64 && SMP
 562         help
 563           SMT scheduler support improves the CPU scheduler's decision making
 564           when dealing with POWER5 cpus at a cost of slightly increased
 565           overhead in some places. If unsure say N here.
 566
 567 config CMDLINE_BOOL
 568         bool "Default bootloader kernel arguments"
 569
 570 config CMDLINE
 571         string "Initial kernel command string"
 572         depends on CMDLINE_BOOL
 573         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 574         help
 575           On some platforms, there is currently no way for the boot loader to
 576           pass arguments to the kernel. For these platforms, you can supply
 577           some command-line options at build time by entering them here.  In
 578           most cases you will need to specify the root device here.
 579
 580 config EXTRA_TARGETS
 581         string "Additional default image types"
 582         help
 583           List additional targets to be built by the bootwrapper here (separated
 584           by spaces).  This is useful for targets that depend of device tree
 585           files in the .dts directory.
 586
 587           Targets in this list will be build as part of the default build
 588           target, or when the user does a 'make zImage' or a
 589           'make zImage.initrd'.
 590
 591           If unsure, leave blank
 592
 593 if !44x || BROKEN
 594 config ARCH_WANTS_FREEZER_CONTROL
 595         def_bool y
 596         depends on ADB_PMU
 597
 598 source kernel/power/Kconfig
 599 endif
 600
 601 config SECCOMP
 602         bool "Enable seccomp to safely compute untrusted bytecode"
 603         depends on PROC_FS
 604         default y
 605         help
 606           This kernel feature is useful for number crunching applications
 607           that may need to compute untrusted bytecode during their
 608           execution. By using pipes or other transports made available to
 609           the process as file descriptors supporting the read/write
 610           syscalls, it's possible to isolate those applications in
 611           their own address space using seccomp. Once seccomp is
 612           enabled via /proc/<pid>/seccomp, it cannot be disabled
 613           and the task is only allowed to execute a few safe syscalls
 614           defined by each seccomp mode.
 615
 616           If unsure, say Y. Only embedded should say N here.
 617
 618 endmenu
 619
 620 config ISA_DMA_API
 621         bool
 622         default !PPC_ISERIES || PCI
 623
 624 menu "Bus options"
 625
 626 config ISA
 627         bool "Support for ISA-bus hardware"
 628         depends on PPC_PREP || PPC_CHRP
 629         select PPC_I8259
 630         help
 631           Find out whether you have ISA slots on your motherboard.  ISA is the
 632           name of a bus system, i.e. the way the CPU talks to the other stuff
 633           inside your box.  If you have an Apple machine, say N here; if you
 634           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 635           you have an embedded board, consult your board documentation.
 636
 637 config ZONE_DMA
 638         bool
 639         default y
 640
 641 config NEED_DMA_MAP_STATE
 642         def_bool (PPC64 || NOT_COHERENT_CACHE)
 643
 644 config NEED_SG_DMA_LENGTH
 645         def_bool y
 646
 647 config GENERIC_ISA_DMA
 648         bool
 649         depends on ISA_DMA_API
 650         default y
 651
 652 config PPC_INDIRECT_PCI
 653         bool
 654         depends on PCI
 655         default y if 40x || 44x
 656         default n
 657
 658 config EISA
 659         bool
 660
 661 config SBUS
 662         bool
 663
 664 config FSL_SOC
 665         bool
 666
 667 config FSL_PCI
 668         bool
 669         select PPC_INDIRECT_PCI
 670         select PCI_QUIRKS
 671
 672 config FSL_PMC
 673         bool
 674         default y
 675         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 676         help
 677           Freescale MPC85xx/MPC86xx power management controller support
 678           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 679
 680 config 4xx_SOC
 681         bool
 682
 683 config FSL_LBC
 684         bool
 685         help
 686           Freescale Localbus support
 687
 688 config FSL_GTM
 689         bool
 690         depends on PPC_83xx || QUICC_ENGINE || CPM2
 691         help
 692           Freescale General-purpose Timers support
 693
 694 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 695 config MCA
 696         bool
 697
 698 # Platforms that what PCI turned unconditionally just do select PCI
 699 # in their config node.  Platforms that want to choose at config
 700 # time should select PPC_PCI_CHOICE
 701 config PPC_PCI_CHOICE
 702         bool
 703
 704 config PCI
 705         bool "PCI support" if PPC_PCI_CHOICE
 706         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 707                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 708         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 709         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 710         select ARCH_SUPPORTS_MSI
 711         help
 712           Find out whether your system includes a PCI bus. PCI is the name of
 713           a bus system, i.e. the way the CPU talks to the other stuff inside
 714           your box.  If you say Y here, the kernel will include drivers and
 715           infrastructure code to support PCI bus devices.
 716
 717 config PCI_DOMAINS
 718         def_bool PCI
 719
 720 config PCI_SYSCALL
 721         def_bool PCI
 722
 723 config PCI_QSPAN
 724         bool "QSpan PCI"
 725         depends on !4xx && !CPM2 && 8xx
 726         select PPC_I8259
 727         help
 728           Say Y here if you have a system based on a Motorola 8xx-series
 729           embedded processor with a QSPAN PCI interface, otherwise say N.
 730
 731 config PCI_8260
 732         bool
 733         depends on PCI && 8260
 734         select PPC_INDIRECT_PCI
 735         default y
 736
 737 config 8260_PCI9
 738         bool "Enable workaround for MPC826x erratum PCI 9"
 739         depends on PCI_8260 && !8272
 740         default y
 741
 742 choice
 743         prompt "IDMA channel for PCI 9 workaround"
 744         depends on 8260_PCI9
 745
 746 config 8260_PCI9_IDMA1
 747         bool "IDMA1"
 748
 749 config 8260_PCI9_IDMA2
 750         bool "IDMA2"
 751
 752 config 8260_PCI9_IDMA3
 753         bool "IDMA3"
 754
 755 config 8260_PCI9_IDMA4
 756         bool "IDMA4"
 757
 758 endchoice
 759
 760 source "drivers/pci/pcie/Kconfig"
 761
 762 source "drivers/pci/Kconfig"
 763
 764 source "drivers/pcmcia/Kconfig"
 765
 766 source "drivers/pci/hotplug/Kconfig"
 767
 768 config HAS_RAPIDIO
 769         bool
 770         default n
 771
 772 config RAPIDIO
 773         bool "RapidIO support"
 774         depends on HAS_RAPIDIO
 775         help
 776           If you say Y here, the kernel will include drivers and
 777           infrastructure code to support RapidIO interconnect devices.
 778
 779 source "drivers/rapidio/Kconfig"
 780
 781 endmenu
 782
 783 menu "Advanced setup"
 784         depends on PPC32
 785
 786 config ADVANCED_OPTIONS
 787         bool "Prompt for advanced kernel configuration options"
 788         help
 789           This option will enable prompting for a variety of advanced kernel
 790           configuration options.  These options can cause the kernel to not
 791           work if they are set incorrectly, but can be used to optimize certain
 792           aspects of kernel memory management.
 793
 794           Unless you know what you are doing, say N here.
 795
 796 comment "Default settings for advanced configuration options are used"
 797         depends on !ADVANCED_OPTIONS
 798
 799 config LOWMEM_SIZE_BOOL
 800         bool "Set maximum low memory"
 801         depends on ADVANCED_OPTIONS
 802         help
 803           This option allows you to set the maximum amount of memory which
 804           will be used as "low memory", that is, memory which the kernel can
 805           access directly, without having to set up a kernel virtual mapping.
 806           This can be useful in optimizing the layout of kernel virtual
 807           memory.
 808
 809           Say N here unless you know what you are doing.
 810
 811 config LOWMEM_SIZE
 812         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 813         default "0x30000000"
 814
 815 config LOWMEM_CAM_NUM_BOOL
 816         bool "Set number of CAMs to use to map low memory"
 817         depends on ADVANCED_OPTIONS && FSL_BOOKE
 818         help
 819           This option allows you to set the maximum number of CAM slots that
 820           will be used to map low memory.  There are a limited number of slots
 821           available and even more limited number that will fit in the L1 MMU.
 822           However, using more entries will allow mapping more low memory.  This
 823           can be useful in optimizing the layout of kernel virtual memory.
 824
 825           Say N here unless you know what you are doing.
 826
 827 config LOWMEM_CAM_NUM
 828         depends on FSL_BOOKE
 829         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 830         default 3
 831
 832 config RELOCATABLE
 833         bool "Build a relocatable kernel (EXPERIMENTAL)"
 834         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 835         help
 836           This builds a kernel image that is capable of running at the
 837           location the kernel is loaded at (some alignment restrictions may
 838           exist).
 839
 840           One use is for the kexec on panic case where the recovery kernel
 841           must live at a different physical address than the primary
 842           kernel.
 843
 844           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 845           it has been loaded at and the compile time physical addresses
 846           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 847           setting can still be useful to bootwrappers that need to know the
 848           load location of the kernel (eg. u-boot/mkimage).
 849
 850 config PAGE_OFFSET_BOOL
 851         bool "Set custom page offset address"
 852         depends on ADVANCED_OPTIONS
 853         help
 854           This option allows you to set the kernel virtual address at which
 855           the kernel will map low memory.  This can be useful in optimizing
 856           the virtual memory layout of the system.
 857
 858           Say N here unless you know what you are doing.
 859
 860 config PAGE_OFFSET
 861         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 862         default "0xc0000000"
 863
 864 config KERNEL_START_BOOL
 865         bool "Set custom kernel base address"
 866         depends on ADVANCED_OPTIONS
 867         help
 868           This option allows you to set the kernel virtual address at which
 869           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 870           however there are times (like kdump) that one might not want them
 871           to be the same.
 872
 873           Say N here unless you know what you are doing.
 874
 875 config KERNEL_START
 876         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 877         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 878         default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
 879         default "0xc0000000"
 880
 881 config PHYSICAL_START_BOOL
 882         bool "Set physical address where the kernel is loaded"
 883         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 884         help
 885           This gives the physical address where the kernel is loaded.
 886
 887           Say N here unless you know what you are doing.
 888
 889 config PHYSICAL_START
 890         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 891         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
 892         default "0x00000000"
 893
 894 config PHYSICAL_ALIGN
 895         hex
 896         default "0x04000000" if FSL_BOOKE
 897         help
 898           This value puts the alignment restrictions on physical address
 899           where kernel is loaded and run from. Kernel is compiled for an
 900           address which meets above alignment restriction.
 901
 902 config TASK_SIZE_BOOL
 903         bool "Set custom user task size"
 904         depends on ADVANCED_OPTIONS
 905         help
 906           This option allows you to set the amount of virtual address space
 907           allocated to user tasks.  This can be useful in optimizing the
 908           virtual memory layout of the system.
 909
 910           Say N here unless you know what you are doing.
 911
 912 config TASK_SIZE
 913         hex "Size of user task space" if TASK_SIZE_BOOL
 914         default "0x80000000" if PPC_PREP || PPC_8xx
 915         default "0xc0000000"
 916
 917 config CONSISTENT_SIZE_BOOL
 918         bool "Set custom consistent memory pool size"
 919         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 920         help
 921           This option allows you to set the size of the
 922           consistent memory pool.  This pool of virtual memory
 923           is used to make consistent memory allocations.
 924
 925 config CONSISTENT_SIZE
 926         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 927         default "0x00200000" if NOT_COHERENT_CACHE
 928
 929 config PIN_TLB
 930         bool "Pinned Kernel TLBs (860 ONLY)"
 931         depends on ADVANCED_OPTIONS && 8xx
 932 endmenu
 933
 934 if PPC64
 935 config RELOCATABLE
 936         bool "Build a relocatable kernel"
 937         help
 938           This builds a kernel image that is capable of running anywhere
 939           in the RMA (real memory area) at any 16k-aligned base address.
 940           The kernel is linked as a position-independent executable (PIE)
 941           and contains dynamic relocations which are processed early
 942           in the bootup process.
 943
 944           One use is for the kexec on panic case where the recovery kernel
 945           must live at a different physical address than the primary
 946           kernel.
 947
 948 config PAGE_OFFSET
 949         hex
 950         default "0xc000000000000000"
 951 config KERNEL_START
 952         hex
 953         default "0xc000000000000000"
 954 config PHYSICAL_START
 955         hex
 956         default "0x00000000"
 957 endif
 958
 959 source "net/Kconfig"
 960
 961 source "drivers/Kconfig"
 962
 963 source "fs/Kconfig"
 964
 965 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 966
 967 source "lib/Kconfig"
 968
 969 source "arch/powerpc/Kconfig.debug"
 970
 971 source "security/Kconfig"
 972
 973 config KEYS_COMPAT
 974         bool
 975         depends on COMPAT && KEYS
 976         default y
 977
 978 source "crypto/Kconfig"
 979
 980 config PPC_CLOCK
 981         bool
 982         default n
 983         select HAVE_CLK
 984
 985 config PPC_LIB_RHEAP
 986         bool
 987
 988 source "arch/powerpc/kvm/Kconfig"