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_IRQ_WORK
 136         select HAVE_PERF_EVENTS
 137         select HAVE_REGS_AND_STACK_ACCESS_API
 138         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 139
 140 config EARLY_PRINTK
 141         bool
 142         default y
 143
 144 config COMPAT
 145         bool
 146         default y if PPC64
 147         select COMPAT_BINFMT_ELF
 148
 149 config SYSVIPC_COMPAT
 150         bool
 151         depends on COMPAT && SYSVIPC
 152         default y
 153
 154 # All PPC32s use generic nvram driver through ppc_md
 155 config GENERIC_NVRAM
 156         bool
 157         default y if PPC32
 158
 159 config SCHED_OMIT_FRAME_POINTER
 160         bool
 161         default y
 162
 163 config ARCH_MAY_HAVE_PC_FDC
 164         bool
 165         default !PPC_PSERIES || PCI
 166
 167 config PPC_OF
 168         def_bool y
 169
 170 config PPC_UDBG_16550
 171         bool
 172         default n
 173
 174 config GENERIC_TBSYNC
 175         bool
 176         default y if PPC32 && SMP
 177         default n
 178
 179 config AUDIT_ARCH
 180         bool
 181         default y
 182
 183 config GENERIC_BUG
 184         bool
 185         default y
 186         depends on BUG
 187
 188 config SYS_SUPPORTS_APM_EMULATION
 189         default y if PMAC_APM_EMU
 190         bool
 191
 192 config DEFAULT_UIMAGE
 193         bool
 194         help
 195           Used to allow a board to specify it wants a uImage built by default
 196         default n
 197
 198 config REDBOOT
 199         bool
 200
 201 config ARCH_HIBERNATION_POSSIBLE
 202         bool
 203         default y
 204
 205 config ARCH_SUSPEND_POSSIBLE
 206         def_bool y
 207         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 208                    PPC_85xx || PPC_86xx || PPC_PSERIES
 209
 210 config PPC_DCR_NATIVE
 211         bool
 212         default n
 213
 214 config PPC_DCR_MMIO
 215         bool
 216         default n
 217
 218 config PPC_DCR
 219         bool
 220         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 221         default y
 222
 223 config PPC_OF_PLATFORM_PCI
 224         bool
 225         depends on PCI
 226         depends on PPC64 # not supported on 32 bits yet
 227         default n
 228
 229 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 230         def_bool y
 231
 232 config PPC_ADV_DEBUG_REGS
 233         bool
 234         depends on 40x || BOOKE
 235         default y
 236
 237 config PPC_ADV_DEBUG_IACS
 238         int
 239         depends on PPC_ADV_DEBUG_REGS
 240         default 4 if 44x
 241         default 2
 242
 243 config PPC_ADV_DEBUG_DACS
 244         int
 245         depends on PPC_ADV_DEBUG_REGS
 246         default 2
 247
 248 config PPC_ADV_DEBUG_DVCS
 249         int
 250         depends on PPC_ADV_DEBUG_REGS
 251         default 2 if 44x
 252         default 0
 253
 254 config PPC_ADV_DEBUG_DAC_RANGE
 255         bool
 256         depends on PPC_ADV_DEBUG_REGS && 44x
 257         default y
 258
 259 source "init/Kconfig"
 260
 261 source "kernel/Kconfig.freezer"
 262
 263 source "arch/powerpc/sysdev/Kconfig"
 264 source "arch/powerpc/platforms/Kconfig"
 265
 266 menu "Kernel options"
 267
 268 config HIGHMEM
 269         bool "High memory support"
 270         depends on PPC32
 271
 272 source kernel/time/Kconfig
 273 source kernel/Kconfig.hz
 274 source kernel/Kconfig.preempt
 275 source "fs/Kconfig.binfmt"
 276
 277 config HUGETLB_PAGE_SIZE_VARIABLE
 278         bool
 279         depends on HUGETLB_PAGE
 280         default y
 281
 282 config MATH_EMULATION
 283         bool "Math emulation"
 284         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 285         ---help---
 286           Some PowerPC chips designed for embedded applications do not have
 287           a floating-point unit and therefore do not implement the
 288           floating-point instructions in the PowerPC instruction set.  If you
 289           say Y here, the kernel will include code to emulate a floating-point
 290           unit, which will allow programs that use floating-point
 291           instructions to run.
 292
 293 config 8XX_MINIMAL_FPEMU
 294         bool "Minimal math emulation for 8xx"
 295         depends on 8xx && !MATH_EMULATION
 296         help
 297           Older arch/ppc kernels still emulated a few floating point
 298           instructions such as load and store, even when full math
 299           emulation is disabled.  Say "Y" here if you want to preserve
 300           this behavior.
 301
 302           It is recommended that you build a soft-float userspace instead.
 303
 304 config IOMMU_HELPER
 305         def_bool PPC64
 306
 307 config SWIOTLB
 308         bool "SWIOTLB support"
 309         default n
 310         select IOMMU_HELPER
 311         ---help---
 312           Support for IO bounce buffering for systems without an IOMMU.
 313           This allows us to DMA to the full physical address space on
 314           platforms where the size of a physical address is larger
 315           than the bus address.  Not all platforms support this.
 316
 317 config HOTPLUG_CPU
 318         bool "Support for enabling/disabling CPUs"
 319         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 320         ---help---
 321           Say Y here to be able to disable and re-enable individual
 322           CPUs at runtime on SMP machines.
 323
 324           Say N if you are unsure.
 325
 326 config ARCH_CPU_PROBE_RELEASE
 327         def_bool y
 328         depends on HOTPLUG_CPU
 329
 330 config ARCH_ENABLE_MEMORY_HOTPLUG
 331         def_bool y
 332
 333 config ARCH_HAS_WALK_MEMORY
 334         def_bool y
 335
 336 config ARCH_ENABLE_MEMORY_HOTREMOVE
 337         def_bool y
 338
 339 config KEXEC
 340         bool "kexec system call (EXPERIMENTAL)"
 341         depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
 342         help
 343           kexec is a system call that implements the ability to shutdown your
 344           current kernel, and to start another kernel.  It is like a reboot
 345           but it is independent of the system firmware.   And like a reboot
 346           you can start any kernel with it, not just Linux.
 347
 348           The name comes from the similarity to the exec system call.
 349
 350           It is an ongoing process to be certain the hardware in a machine
 351           is properly shutdown, so do not be surprised if this code does not
 352           initially work for you.  It may help to enable device hotplugging
 353           support.  As of this writing the exact hardware interface is
 354           strongly in flux, so no good recommendation can be made.
 355
 356 config CRASH_DUMP
 357         bool "Build a kdump crash kernel"
 358         depends on PPC64 || 6xx || FSL_BOOKE
 359         select RELOCATABLE if PPC64 || FSL_BOOKE
 360         help
 361           Build a kernel suitable for use as a kdump capture kernel.
 362           The same kernel binary can be used as production kernel and dump
 363           capture kernel.
 364
 365 config PHYP_DUMP
 366         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 367         depends on PPC_PSERIES && EXPERIMENTAL
 368         help
 369           Hypervisor-assisted dump is meant to be a kdump replacement
 370           offering robustness and speed not possible without system
 371           hypervisor assistance.
 372
 373           If unsure, say "N"
 374
 375 config PPCBUG_NVRAM
 376         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 377         default y if PPC_PREP
 378
 379 config IRQ_ALL_CPUS
 380         bool "Distribute interrupts on all CPUs by default"
 381         depends on SMP && !MV64360
 382         help
 383           This option gives the kernel permission to distribute IRQs across
 384           multiple CPUs.  Saying N here will route all IRQs to the first
 385           CPU.  Generally saying Y is safe, although some problems have been
 386           reported with SMP Power Macintoshes with this option enabled.
 387
 388 config SPARSE_IRQ
 389         bool "Support sparse irq numbering"
 390         default n
 391         help
 392           This enables support for sparse irqs. This is useful for distro
 393           kernels that want to define a high CONFIG_NR_CPUS value but still
 394           want to have low kernel memory footprint on smaller machines.
 395
 396           ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
 397             out the irq_desc[] array in a more NUMA-friendly way. )
 398
 399           If you don't know what to do here, say N.
 400
 401 config NUMA
 402         bool "NUMA support"
 403         depends on PPC64
 404         default y if SMP && PPC_PSERIES
 405
 406 config NODES_SHIFT
 407         int
 408         default "8" if PPC64
 409         default "4"
 410         depends on NEED_MULTIPLE_NODES
 411
 412 config MAX_ACTIVE_REGIONS
 413         int
 414         default "256" if PPC64
 415         default "32"
 416
 417 config ARCH_SELECT_MEMORY_MODEL
 418         def_bool y
 419         depends on PPC64
 420
 421 config ARCH_FLATMEM_ENABLE
 422         def_bool y
 423         depends on (PPC64 && !NUMA) || PPC32
 424
 425 config ARCH_SPARSEMEM_ENABLE
 426         def_bool y
 427         depends on PPC64
 428         select SPARSEMEM_VMEMMAP_ENABLE
 429
 430 config ARCH_SPARSEMEM_DEFAULT
 431         def_bool y
 432         depends on (SMP && PPC_PSERIES) || PPC_PS3
 433
 434 config ARCH_POPULATES_NODE_MAP
 435         def_bool y
 436
 437 config SYS_SUPPORTS_HUGETLBFS
 438        def_bool y
 439        depends on PPC_BOOK3S_64
 440
 441 source "mm/Kconfig"
 442
 443 config ARCH_MEMORY_PROBE
 444         def_bool y
 445         depends on MEMORY_HOTPLUG
 446
 447 # Some NUMA nodes have memory ranges that span
 448 # other nodes.  Even though a pfn is valid and
 449 # between a node's start and end pfns, it may not
 450 # reside on that node.  See memmap_init_zone()
 451 # for details.
 452 config NODES_SPAN_OTHER_NODES
 453         def_bool y
 454         depends on NEED_MULTIPLE_NODES
 455
 456 config PPC_HAS_HASH_64K
 457         bool
 458         depends on PPC64
 459         default n
 460
 461 config STDBINUTILS
 462         bool "Using standard binutils settings"
 463         depends on 44x
 464         default y
 465         help
 466           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 467           Note, that kernel will be able to run only those applications,
 468           which had been compiled using binutils later than 2.17.50.0.3 with
 469           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 470           the older binutils, you can patch them with a trivial patch, which
 471           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 472
 473 choice
 474         prompt "Page size"
 475         default PPC_4K_PAGES
 476         help
 477           Select the kernel logical page size. Increasing the page size
 478           will reduce software overhead at each page boundary, allow
 479           hardware prefetch mechanisms to be more effective, and allow
 480           larger dma transfers increasing IO efficiency and reducing
 481           overhead. However the utilization of memory will increase.
 482           For example, each cached file will using a multiple of the
 483           page size to hold its contents and the difference between the
 484           end of file and the end of page is wasted.
 485
 486           Some dedicated systems, such as software raid serving with
 487           accelerated calculations, have shown significant increases.
 488
 489           If you configure a 64 bit kernel for 64k pages but the
 490           processor does not support them, then the kernel will simulate
 491           them with 4k pages, loading them on demand, but with the
 492           reduced software overhead and larger internal fragmentation.
 493           For the 32 bit kernel, a large page option will not be offered
 494           unless it is supported by the configured processor.
 495
 496           If unsure, choose 4K_PAGES.
 497
 498 config PPC_4K_PAGES
 499         bool "4k page size"
 500
 501 config PPC_16K_PAGES
 502         bool "16k page size" if 44x
 503
 504 config PPC_64K_PAGES
 505         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 506         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 507
 508 config PPC_256K_PAGES
 509         bool "256k page size" if 44x
 510         depends on !STDBINUTILS
 511         help
 512           Make the page size 256k.
 513
 514           As the ELF standard only requires alignment to support page
 515           sizes up to 64k, you will need to compile all of your user
 516           space applications with a non-standard binutils settings
 517           (see the STDBINUTILS description for details).
 518
 519           Say N unless you know what you are doing.
 520
 521 endchoice
 522
 523 config FORCE_MAX_ZONEORDER
 524         int "Maximum zone order"
 525         range 9 64 if PPC64 && PPC_64K_PAGES
 526         default "9" if PPC64 && PPC_64K_PAGES
 527         range 13 64 if PPC64 && !PPC_64K_PAGES
 528         default "13" if PPC64 && !PPC_64K_PAGES
 529         range 9 64 if PPC32 && PPC_16K_PAGES
 530         default "9" if PPC32 && PPC_16K_PAGES
 531         range 7 64 if PPC32 && PPC_64K_PAGES
 532         default "7" if PPC32 && PPC_64K_PAGES
 533         range 5 64 if PPC32 && PPC_256K_PAGES
 534         default "5" if PPC32 && PPC_256K_PAGES
 535         range 11 64
 536         default "11"
 537         help
 538           The kernel memory allocator divides physically contiguous memory
 539           blocks into "zones", where each zone is a power of two number of
 540           pages.  This option selects the largest power of two that the kernel
 541           keeps in the memory allocator.  If you need to allocate very large
 542           blocks of physically contiguous memory, then you may need to
 543           increase this value.
 544
 545           This config option is actually maximum order plus one. For example,
 546           a value of 11 means that the largest free memory block is 2^10 pages.
 547
 548           The page size is not necessarily 4KB.  For example, on 64-bit
 549           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 550           this in mind when choosing a value for this option.
 551
 552 config PPC_SUBPAGE_PROT
 553         bool "Support setting protections for 4k subpages"
 554         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 555         help
 556           This option adds support for a system call to allow user programs
 557           to set access permissions (read/write, readonly, or no access)
 558           on the 4k subpages of each 64k page.
 559
 560 config SCHED_SMT
 561         bool "SMT (Hyperthreading) scheduler support"
 562         depends on PPC64 && SMP
 563         help
 564           SMT scheduler support improves the CPU scheduler's decision making
 565           when dealing with POWER5 cpus at a cost of slightly increased
 566           overhead in some places. If unsure say N here.
 567
 568 config CMDLINE_BOOL
 569         bool "Default bootloader kernel arguments"
 570
 571 config CMDLINE
 572         string "Initial kernel command string"
 573         depends on CMDLINE_BOOL
 574         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 575         help
 576           On some platforms, there is currently no way for the boot loader to
 577           pass arguments to the kernel. For these platforms, you can supply
 578           some command-line options at build time by entering them here.  In
 579           most cases you will need to specify the root device here.
 580
 581 config EXTRA_TARGETS
 582         string "Additional default image types"
 583         help
 584           List additional targets to be built by the bootwrapper here (separated
 585           by spaces).  This is useful for targets that depend of device tree
 586           files in the .dts directory.
 587
 588           Targets in this list will be build as part of the default build
 589           target, or when the user does a 'make zImage' or a
 590           'make zImage.initrd'.
 591
 592           If unsure, leave blank
 593
 594 if !44x || BROKEN
 595 config ARCH_WANTS_FREEZER_CONTROL
 596         def_bool y
 597         depends on ADB_PMU
 598
 599 source kernel/power/Kconfig
 600 endif
 601
 602 config SECCOMP
 603         bool "Enable seccomp to safely compute untrusted bytecode"
 604         depends on PROC_FS
 605         default y
 606         help
 607           This kernel feature is useful for number crunching applications
 608           that may need to compute untrusted bytecode during their
 609           execution. By using pipes or other transports made available to
 610           the process as file descriptors supporting the read/write
 611           syscalls, it's possible to isolate those applications in
 612           their own address space using seccomp. Once seccomp is
 613           enabled via /proc/<pid>/seccomp, it cannot be disabled
 614           and the task is only allowed to execute a few safe syscalls
 615           defined by each seccomp mode.
 616
 617           If unsure, say Y. Only embedded should say N here.
 618
 619 endmenu
 620
 621 config ISA_DMA_API
 622         bool
 623         default !PPC_ISERIES || PCI
 624
 625 menu "Bus options"
 626
 627 config ISA
 628         bool "Support for ISA-bus hardware"
 629         depends on PPC_PREP || PPC_CHRP
 630         select PPC_I8259
 631         help
 632           Find out whether you have ISA slots on your motherboard.  ISA is the
 633           name of a bus system, i.e. the way the CPU talks to the other stuff
 634           inside your box.  If you have an Apple machine, say N here; if you
 635           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 636           you have an embedded board, consult your board documentation.
 637
 638 config ZONE_DMA
 639         bool
 640         default y
 641
 642 config NEED_DMA_MAP_STATE
 643         def_bool (PPC64 || NOT_COHERENT_CACHE)
 644
 645 config NEED_SG_DMA_LENGTH
 646         def_bool y
 647
 648 config GENERIC_ISA_DMA
 649         bool
 650         depends on ISA_DMA_API
 651         default y
 652
 653 config PPC_INDIRECT_PCI
 654         bool
 655         depends on PCI
 656         default y if 40x || 44x
 657         default n
 658
 659 config EISA
 660         bool
 661
 662 config SBUS
 663         bool
 664
 665 config FSL_SOC
 666         bool
 667
 668 config FSL_PCI
 669         bool
 670         select PPC_INDIRECT_PCI
 671         select PCI_QUIRKS
 672
 673 config FSL_PMC
 674         bool
 675         default y
 676         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 677         help
 678           Freescale MPC85xx/MPC86xx power management controller support
 679           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 680
 681 config 4xx_SOC
 682         bool
 683
 684 config FSL_LBC
 685         bool "Freescale Local Bus support"
 686         depends on FSL_SOC
 687         help
 688           Enables reporting of errors from the Freescale local bus
 689           controller.  Also contains some common code used by
 690           drivers for specific local bus peripherals.
 691
 692 config FSL_GTM
 693         bool
 694         depends on PPC_83xx || QUICC_ENGINE || CPM2
 695         help
 696           Freescale General-purpose Timers support
 697
 698 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 699 config MCA
 700         bool
 701
 702 # Platforms that what PCI turned unconditionally just do select PCI
 703 # in their config node.  Platforms that want to choose at config
 704 # time should select PPC_PCI_CHOICE
 705 config PPC_PCI_CHOICE
 706         bool
 707
 708 config PCI
 709         bool "PCI support" if PPC_PCI_CHOICE
 710         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 711                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 712         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 713         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 714         select ARCH_SUPPORTS_MSI
 715         help
 716           Find out whether your system includes a PCI bus. PCI is the name of
 717           a bus system, i.e. the way the CPU talks to the other stuff inside
 718           your box.  If you say Y here, the kernel will include drivers and
 719           infrastructure code to support PCI bus devices.
 720
 721 config PCI_DOMAINS
 722         def_bool PCI
 723
 724 config PCI_SYSCALL
 725         def_bool PCI
 726
 727 config PCI_QSPAN
 728         bool "QSpan PCI"
 729         depends on !4xx && !CPM2 && 8xx
 730         select PPC_I8259
 731         help
 732           Say Y here if you have a system based on a Motorola 8xx-series
 733           embedded processor with a QSPAN PCI interface, otherwise say N.
 734
 735 config PCI_8260
 736         bool
 737         depends on PCI && 8260
 738         select PPC_INDIRECT_PCI
 739         default y
 740
 741 config 8260_PCI9
 742         bool "Enable workaround for MPC826x erratum PCI 9"
 743         depends on PCI_8260 && !8272
 744         default y
 745
 746 choice
 747         prompt "IDMA channel for PCI 9 workaround"
 748         depends on 8260_PCI9
 749
 750 config 8260_PCI9_IDMA1
 751         bool "IDMA1"
 752
 753 config 8260_PCI9_IDMA2
 754         bool "IDMA2"
 755
 756 config 8260_PCI9_IDMA3
 757         bool "IDMA3"
 758
 759 config 8260_PCI9_IDMA4
 760         bool "IDMA4"
 761
 762 endchoice
 763
 764 source "drivers/pci/pcie/Kconfig"
 765
 766 source "drivers/pci/Kconfig"
 767
 768 source "drivers/pcmcia/Kconfig"
 769
 770 source "drivers/pci/hotplug/Kconfig"
 771
 772 config HAS_RAPIDIO
 773         bool
 774         default n
 775
 776 config RAPIDIO
 777         bool "RapidIO support"
 778         depends on HAS_RAPIDIO
 779         help
 780           If you say Y here, the kernel will include drivers and
 781           infrastructure code to support RapidIO interconnect devices.
 782
 783 source "drivers/rapidio/Kconfig"
 784
 785 endmenu
 786
 787 menu "Advanced setup"
 788         depends on PPC32
 789
 790 config ADVANCED_OPTIONS
 791         bool "Prompt for advanced kernel configuration options"
 792         help
 793           This option will enable prompting for a variety of advanced kernel
 794           configuration options.  These options can cause the kernel to not
 795           work if they are set incorrectly, but can be used to optimize certain
 796           aspects of kernel memory management.
 797
 798           Unless you know what you are doing, say N here.
 799
 800 comment "Default settings for advanced configuration options are used"
 801         depends on !ADVANCED_OPTIONS
 802
 803 config LOWMEM_SIZE_BOOL
 804         bool "Set maximum low memory"
 805         depends on ADVANCED_OPTIONS
 806         help
 807           This option allows you to set the maximum amount of memory which
 808           will be used as "low memory", that is, memory which the kernel can
 809           access directly, without having to set up a kernel virtual mapping.
 810           This can be useful in optimizing the layout of kernel virtual
 811           memory.
 812
 813           Say N here unless you know what you are doing.
 814
 815 config LOWMEM_SIZE
 816         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 817         default "0x30000000"
 818
 819 config LOWMEM_CAM_NUM_BOOL
 820         bool "Set number of CAMs to use to map low memory"
 821         depends on ADVANCED_OPTIONS && FSL_BOOKE
 822         help
 823           This option allows you to set the maximum number of CAM slots that
 824           will be used to map low memory.  There are a limited number of slots
 825           available and even more limited number that will fit in the L1 MMU.
 826           However, using more entries will allow mapping more low memory.  This
 827           can be useful in optimizing the layout of kernel virtual memory.
 828
 829           Say N here unless you know what you are doing.
 830
 831 config LOWMEM_CAM_NUM
 832         depends on FSL_BOOKE
 833         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 834         default 3
 835
 836 config RELOCATABLE
 837         bool "Build a relocatable kernel (EXPERIMENTAL)"
 838         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 839         help
 840           This builds a kernel image that is capable of running at the
 841           location the kernel is loaded at (some alignment restrictions may
 842           exist).
 843
 844           One use is for the kexec on panic case where the recovery kernel
 845           must live at a different physical address than the primary
 846           kernel.
 847
 848           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 849           it has been loaded at and the compile time physical addresses
 850           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 851           setting can still be useful to bootwrappers that need to know the
 852           load location of the kernel (eg. u-boot/mkimage).
 853
 854 config PAGE_OFFSET_BOOL
 855         bool "Set custom page offset address"
 856         depends on ADVANCED_OPTIONS
 857         help
 858           This option allows you to set the kernel virtual address at which
 859           the kernel will map low memory.  This can be useful in optimizing
 860           the virtual memory layout of the system.
 861
 862           Say N here unless you know what you are doing.
 863
 864 config PAGE_OFFSET
 865         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 866         default "0xc0000000"
 867
 868 config KERNEL_START_BOOL
 869         bool "Set custom kernel base address"
 870         depends on ADVANCED_OPTIONS
 871         help
 872           This option allows you to set the kernel virtual address at which
 873           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 874           however there are times (like kdump) that one might not want them
 875           to be the same.
 876
 877           Say N here unless you know what you are doing.
 878
 879 config KERNEL_START
 880         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 881         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 882         default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
 883         default "0xc0000000"
 884
 885 config PHYSICAL_START_BOOL
 886         bool "Set physical address where the kernel is loaded"
 887         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 888         help
 889           This gives the physical address where the kernel is loaded.
 890
 891           Say N here unless you know what you are doing.
 892
 893 config PHYSICAL_START
 894         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 895         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
 896         default "0x00000000"
 897
 898 config PHYSICAL_ALIGN
 899         hex
 900         default "0x04000000" if FSL_BOOKE
 901         help
 902           This value puts the alignment restrictions on physical address
 903           where kernel is loaded and run from. Kernel is compiled for an
 904           address which meets above alignment restriction.
 905
 906 config TASK_SIZE_BOOL
 907         bool "Set custom user task size"
 908         depends on ADVANCED_OPTIONS
 909         help
 910           This option allows you to set the amount of virtual address space
 911           allocated to user tasks.  This can be useful in optimizing the
 912           virtual memory layout of the system.
 913
 914           Say N here unless you know what you are doing.
 915
 916 config TASK_SIZE
 917         hex "Size of user task space" if TASK_SIZE_BOOL
 918         default "0x80000000" if PPC_PREP || PPC_8xx
 919         default "0xc0000000"
 920
 921 config CONSISTENT_SIZE_BOOL
 922         bool "Set custom consistent memory pool size"
 923         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 924         help
 925           This option allows you to set the size of the
 926           consistent memory pool.  This pool of virtual memory
 927           is used to make consistent memory allocations.
 928
 929 config CONSISTENT_SIZE
 930         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 931         default "0x00200000" if NOT_COHERENT_CACHE
 932
 933 config PIN_TLB
 934         bool "Pinned Kernel TLBs (860 ONLY)"
 935         depends on ADVANCED_OPTIONS && 8xx
 936 endmenu
 937
 938 if PPC64
 939 config RELOCATABLE
 940         bool "Build a relocatable kernel"
 941         help
 942           This builds a kernel image that is capable of running anywhere
 943           in the RMA (real memory area) at any 16k-aligned base address.
 944           The kernel is linked as a position-independent executable (PIE)
 945           and contains dynamic relocations which are processed early
 946           in the bootup process.
 947
 948           One use is for the kexec on panic case where the recovery kernel
 949           must live at a different physical address than the primary
 950           kernel.
 951
 952 config PAGE_OFFSET
 953         hex
 954         default "0xc000000000000000"
 955 config KERNEL_START
 956         hex
 957         default "0xc000000000000000"
 958 config PHYSICAL_START
 959         hex
 960         default "0x00000000"
 961 endif
 962
 963 source "net/Kconfig"
 964
 965 source "drivers/Kconfig"
 966
 967 source "fs/Kconfig"
 968
 969 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 970
 971 source "lib/Kconfig"
 972
 973 source "arch/powerpc/Kconfig.debug"
 974
 975 source "security/Kconfig"
 976
 977 config KEYS_COMPAT
 978         bool
 979         depends on COMPAT && KEYS
 980         default y
 981
 982 source "crypto/Kconfig"
 983
 984 config PPC_CLOCK
 985         bool
 986         default n
 987         select HAVE_CLK
 988
 989 config PPC_LIB_RHEAP
 990         bool
 991
 992 source "arch/powerpc/kvm/Kconfig"