arch/powerpc/Kconfig

   1 source "arch/powerpc/platforms/Kconfig.cputype"
   2
   3 config PPC32
   4         bool
   5         default y if !PPC64
   6
   7 config 32BIT
   8         bool
   9         default y if PPC32
  10
  11 config 64BIT
  12         bool
  13         default y if PPC64
  14
  15 config WORD_SIZE
  16         int
  17         default 64 if PPC64
  18         default 32 if !PPC64
  19
  20 config ARCH_PHYS_ADDR_T_64BIT
  21        def_bool PPC64 || PHYS_64BIT
  22
  23 config ARCH_DMA_ADDR_T_64BIT
  24         def_bool ARCH_PHYS_ADDR_T_64BIT
  25
  26 config MMU
  27         bool
  28         default y
  29
  30 config GENERIC_CMOS_UPDATE
  31         def_bool y
  32
  33 config GENERIC_TIME_VSYSCALL
  34         def_bool y
  35
  36 config GENERIC_CLOCKEVENTS
  37         def_bool y
  38
  39 config HAVE_SETUP_PER_CPU_AREA
  40         def_bool PPC64
  41
  42 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  43         def_bool PPC64
  44
  45 config NR_IRQS
  46         int "Number of virtual interrupt numbers"
  47         range 32 32768
  48         default "512"
  49         help
  50           This defines the number of virtual interrupt numbers the kernel
  51           can manage. Virtual interrupt numbers are what you see in
  52           /proc/interrupts. If you configure your system to have too few,
  53           drivers will fail to load or worse - handle with care.
  54
  55 config STACKTRACE_SUPPORT
  56         bool
  57         default y
  58
  59 config HAVE_LATENCYTOP_SUPPORT
  60         def_bool y
  61
  62 config TRACE_IRQFLAGS_SUPPORT
  63         bool
  64         default y
  65
  66 config LOCKDEP_SUPPORT
  67         bool
  68         default y
  69
  70 config RWSEM_GENERIC_SPINLOCK
  71         bool
  72
  73 config RWSEM_XCHGADD_ALGORITHM
  74         bool
  75         default y
  76
  77 config GENERIC_LOCKBREAK
  78         bool
  79         default y
  80         depends on SMP && PREEMPT
  81
  82 config ARCH_HAS_ILOG2_U32
  83         bool
  84         default y
  85
  86 config ARCH_HAS_ILOG2_U64
  87         bool
  88         default y if 64BIT
  89
  90 config GENERIC_HWEIGHT
  91         bool
  92         default y
  93
  94 config GENERIC_FIND_NEXT_BIT
  95         bool
  96         default y
  97
  98 config GENERIC_FIND_BIT_LE
  99         bool
 100         default y
 101
 102 config GENERIC_GPIO
 103         bool
 104         help
 105           Generic GPIO API support
 106
 107 config ARCH_NO_VIRT_TO_BUS
 108         def_bool PPC64
 109
 110 config PPC
 111         bool
 112         default y
 113         select OF
 114         select OF_EARLY_FLATTREE
 115         select HAVE_FTRACE_MCOUNT_RECORD
 116         select HAVE_DYNAMIC_FTRACE
 117         select HAVE_FUNCTION_TRACER
 118         select HAVE_FUNCTION_GRAPH_TRACER
 119         select ARCH_WANT_OPTIONAL_GPIOLIB
 120         select HAVE_IDE
 121         select HAVE_IOREMAP_PROT
 122         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 123         select HAVE_KPROBES
 124         select HAVE_ARCH_KGDB
 125         select HAVE_KRETPROBES
 126         select HAVE_ARCH_TRACEHOOK
 127         select HAVE_MEMBLOCK
 128         select HAVE_DMA_ATTRS
 129         select HAVE_DMA_API_DEBUG
 130         select USE_GENERIC_SMP_HELPERS if SMP
 131         select HAVE_OPROFILE
 132         select HAVE_SYSCALL_WRAPPERS if PPC64
 133         select GENERIC_ATOMIC64 if PPC32
 134         select HAVE_IRQ_WORK
 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         select HAVE_GENERIC_HARDIRQS
 139         select HAVE_SPARSE_IRQ
 140         select IRQ_PER_CPU
 141         select GENERIC_IRQ_SHOW
 142         select GENERIC_IRQ_SHOW_LEVEL
 143         select HAVE_RCU_TABLE_FREE if SMP
 144         select HAVE_SYSCALL_TRACEPOINTS
 145
 146 config EARLY_PRINTK
 147         bool
 148         default y
 149
 150 config COMPAT
 151         bool
 152         default y if PPC64
 153         select COMPAT_BINFMT_ELF
 154
 155 config SYSVIPC_COMPAT
 156         bool
 157         depends on COMPAT && SYSVIPC
 158         default y
 159
 160 # All PPC32s use generic nvram driver through ppc_md
 161 config GENERIC_NVRAM
 162         bool
 163         default y if PPC32
 164
 165 config SCHED_OMIT_FRAME_POINTER
 166         bool
 167         default y
 168
 169 config ARCH_MAY_HAVE_PC_FDC
 170         bool
 171         default !PPC_PSERIES || PCI
 172
 173 config PPC_OF
 174         def_bool y
 175
 176 config PPC_UDBG_16550
 177         bool
 178         default n
 179
 180 config GENERIC_TBSYNC
 181         bool
 182         default y if PPC32 && SMP
 183         default n
 184
 185 config AUDIT_ARCH
 186         bool
 187         default y
 188
 189 config GENERIC_BUG
 190         bool
 191         default y
 192         depends on BUG
 193
 194 config SYS_SUPPORTS_APM_EMULATION
 195         default y if PMAC_APM_EMU
 196         bool
 197
 198 config EPAPR_BOOT
 199         bool
 200         help
 201           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 202         default n
 203
 204 config DEFAULT_UIMAGE
 205         bool
 206         help
 207           Used to allow a board to specify it wants a uImage built by default
 208         default n
 209
 210 config REDBOOT
 211         bool
 212
 213 config ARCH_HIBERNATION_POSSIBLE
 214         bool
 215         default y
 216
 217 config ARCH_SUSPEND_POSSIBLE
 218         def_bool y
 219         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 220                    (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
 221
 222 config PPC_DCR_NATIVE
 223         bool
 224         default n
 225
 226 config PPC_DCR_MMIO
 227         bool
 228         default n
 229
 230 config PPC_DCR
 231         bool
 232         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 233         default y
 234
 235 config PPC_OF_PLATFORM_PCI
 236         bool
 237         depends on PCI
 238         depends on PPC64 # not supported on 32 bits yet
 239         default n
 240
 241 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 242         def_bool y
 243
 244 config PPC_ADV_DEBUG_REGS
 245         bool
 246         depends on 40x || BOOKE
 247         default y
 248
 249 config PPC_ADV_DEBUG_IACS
 250         int
 251         depends on PPC_ADV_DEBUG_REGS
 252         default 4 if 44x
 253         default 2
 254
 255 config PPC_ADV_DEBUG_DACS
 256         int
 257         depends on PPC_ADV_DEBUG_REGS
 258         default 2
 259
 260 config PPC_ADV_DEBUG_DVCS
 261         int
 262         depends on PPC_ADV_DEBUG_REGS
 263         default 2 if 44x
 264         default 0
 265
 266 config PPC_ADV_DEBUG_DAC_RANGE
 267         bool
 268         depends on PPC_ADV_DEBUG_REGS && 44x
 269         default y
 270
 271 source "init/Kconfig"
 272
 273 source "kernel/Kconfig.freezer"
 274
 275 source "arch/powerpc/sysdev/Kconfig"
 276 source "arch/powerpc/platforms/Kconfig"
 277
 278 menu "Kernel options"
 279
 280 config HIGHMEM
 281         bool "High memory support"
 282         depends on PPC32
 283
 284 source kernel/time/Kconfig
 285 source kernel/Kconfig.hz
 286 source kernel/Kconfig.preempt
 287 source "fs/Kconfig.binfmt"
 288
 289 config HUGETLB_PAGE_SIZE_VARIABLE
 290         bool
 291         depends on HUGETLB_PAGE
 292         default y
 293
 294 config MATH_EMULATION
 295         bool "Math emulation"
 296         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 297         ---help---
 298           Some PowerPC chips designed for embedded applications do not have
 299           a floating-point unit and therefore do not implement the
 300           floating-point instructions in the PowerPC instruction set.  If you
 301           say Y here, the kernel will include code to emulate a floating-point
 302           unit, which will allow programs that use floating-point
 303           instructions to run.
 304
 305 config 8XX_MINIMAL_FPEMU
 306         bool "Minimal math emulation for 8xx"
 307         depends on 8xx && !MATH_EMULATION
 308         help
 309           Older arch/ppc kernels still emulated a few floating point
 310           instructions such as load and store, even when full math
 311           emulation is disabled.  Say "Y" here if you want to preserve
 312           this behavior.
 313
 314           It is recommended that you build a soft-float userspace instead.
 315
 316 config IOMMU_HELPER
 317         def_bool PPC64
 318
 319 config SWIOTLB
 320         bool "SWIOTLB support"
 321         default n
 322         select IOMMU_HELPER
 323         ---help---
 324           Support for IO bounce buffering for systems without an IOMMU.
 325           This allows us to DMA to the full physical address space on
 326           platforms where the size of a physical address is larger
 327           than the bus address.  Not all platforms support this.
 328
 329 config HOTPLUG_CPU
 330         bool "Support for enabling/disabling CPUs"
 331         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 332         ---help---
 333           Say Y here to be able to disable and re-enable individual
 334           CPUs at runtime on SMP machines.
 335
 336           Say N if you are unsure.
 337
 338 config ARCH_CPU_PROBE_RELEASE
 339         def_bool y
 340         depends on HOTPLUG_CPU
 341
 342 config ARCH_ENABLE_MEMORY_HOTPLUG
 343         def_bool y
 344
 345 config ARCH_HAS_WALK_MEMORY
 346         def_bool y
 347
 348 config ARCH_ENABLE_MEMORY_HOTREMOVE
 349         def_bool y
 350
 351 config KEXEC
 352         bool "kexec system call (EXPERIMENTAL)"
 353         depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
 354         help
 355           kexec is a system call that implements the ability to shutdown your
 356           current kernel, and to start another kernel.  It is like a reboot
 357           but it is independent of the system firmware.   And like a reboot
 358           you can start any kernel with it, not just Linux.
 359
 360           The name comes from the similarity to the exec system call.
 361
 362           It is an ongoing process to be certain the hardware in a machine
 363           is properly shutdown, so do not be surprised if this code does not
 364           initially work for you.  It may help to enable device hotplugging
 365           support.  As of this writing the exact hardware interface is
 366           strongly in flux, so no good recommendation can be made.
 367
 368 config CRASH_DUMP
 369         bool "Build a kdump crash kernel"
 370         depends on PPC64 || 6xx || FSL_BOOKE
 371         select RELOCATABLE if PPC64 || FSL_BOOKE
 372         help
 373           Build a kernel suitable for use as a kdump capture kernel.
 374           The same kernel binary can be used as production kernel and dump
 375           capture kernel.
 376
 377 config PHYP_DUMP
 378         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 379         depends on PPC_PSERIES && EXPERIMENTAL
 380         help
 381           Hypervisor-assisted dump is meant to be a kdump replacement
 382           offering robustness and speed not possible without system
 383           hypervisor assistance.
 384
 385           If unsure, say "N"
 386
 387 config PPCBUG_NVRAM
 388         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 389         default y if PPC_PREP
 390
 391 config IRQ_ALL_CPUS
 392         bool "Distribute interrupts on all CPUs by default"
 393         depends on SMP && !MV64360
 394         help
 395           This option gives the kernel permission to distribute IRQs across
 396           multiple CPUs.  Saying N here will route all IRQs to the first
 397           CPU.  Generally saying Y is safe, although some problems have been
 398           reported with SMP Power Macintoshes with this option enabled.
 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 config ARCH_WANTS_FREEZER_CONTROL
 594         def_bool y
 595         depends on ADB_PMU
 596
 597 source kernel/power/Kconfig
 598
 599 config SECCOMP
 600         bool "Enable seccomp to safely compute untrusted bytecode"
 601         depends on PROC_FS
 602         default y
 603         help
 604           This kernel feature is useful for number crunching applications
 605           that may need to compute untrusted bytecode during their
 606           execution. By using pipes or other transports made available to
 607           the process as file descriptors supporting the read/write
 608           syscalls, it's possible to isolate those applications in
 609           their own address space using seccomp. Once seccomp is
 610           enabled via /proc/<pid>/seccomp, it cannot be disabled
 611           and the task is only allowed to execute a few safe syscalls
 612           defined by each seccomp mode.
 613
 614           If unsure, say Y. Only embedded should say N here.
 615
 616 endmenu
 617
 618 config ISA_DMA_API
 619         bool
 620         default !PPC_ISERIES || PCI
 621
 622 menu "Bus options"
 623
 624 config ISA
 625         bool "Support for ISA-bus hardware"
 626         depends on PPC_PREP || PPC_CHRP
 627         select PPC_I8259
 628         help
 629           Find out whether you have ISA slots on your motherboard.  ISA is the
 630           name of a bus system, i.e. the way the CPU talks to the other stuff
 631           inside your box.  If you have an Apple machine, say N here; if you
 632           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 633           you have an embedded board, consult your board documentation.
 634
 635 config ZONE_DMA
 636         bool
 637         default y
 638
 639 config NEED_DMA_MAP_STATE
 640         def_bool (PPC64 || NOT_COHERENT_CACHE)
 641
 642 config NEED_SG_DMA_LENGTH
 643         def_bool y
 644
 645 config GENERIC_ISA_DMA
 646         bool
 647         depends on ISA_DMA_API
 648         default y
 649
 650 config PPC_INDIRECT_PCI
 651         bool
 652         depends on PCI
 653         default y if 40x || 44x
 654         default n
 655
 656 config EISA
 657         bool
 658
 659 config SBUS
 660         bool
 661
 662 config FSL_SOC
 663         bool
 664
 665 config FSL_PCI
 666         bool
 667         select PPC_INDIRECT_PCI
 668         select PCI_QUIRKS
 669
 670 config FSL_PMC
 671         bool
 672         default y
 673         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 674         help
 675           Freescale MPC85xx/MPC86xx power management controller support
 676           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 677
 678 config PPC4xx_CPM
 679         bool
 680         default y
 681         depends on SUSPEND && (44x || 40x)
 682         help
 683           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 684           It also enables support for two different idle states (idle-wait
 685           and idle-doze).
 686
 687 config 4xx_SOC
 688         bool
 689
 690 config FSL_LBC
 691         bool "Freescale Local Bus support"
 692         depends on FSL_SOC
 693         help
 694           Enables reporting of errors from the Freescale local bus
 695           controller.  Also contains some common code used by
 696           drivers for specific local bus peripherals.
 697
 698 config FSL_GTM
 699         bool
 700         depends on PPC_83xx || QUICC_ENGINE || CPM2
 701         help
 702           Freescale General-purpose Timers support
 703
 704 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 705 config MCA
 706         bool
 707
 708 # Platforms that what PCI turned unconditionally just do select PCI
 709 # in their config node.  Platforms that want to choose at config
 710 # time should select PPC_PCI_CHOICE
 711 config PPC_PCI_CHOICE
 712         bool
 713
 714 config PCI
 715         bool "PCI support" if PPC_PCI_CHOICE
 716         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 717                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 718         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 719         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 720         select ARCH_SUPPORTS_MSI
 721         help
 722           Find out whether your system includes a PCI bus. PCI is the name of
 723           a bus system, i.e. the way the CPU talks to the other stuff inside
 724           your box.  If you say Y here, the kernel will include drivers and
 725           infrastructure code to support PCI bus devices.
 726
 727 config PCI_DOMAINS
 728         def_bool PCI
 729
 730 config PCI_SYSCALL
 731         def_bool PCI
 732
 733 config PCI_QSPAN
 734         bool "QSpan PCI"
 735         depends on !4xx && !CPM2 && 8xx
 736         select PPC_I8259
 737         help
 738           Say Y here if you have a system based on a Motorola 8xx-series
 739           embedded processor with a QSPAN PCI interface, otherwise say N.
 740
 741 config PCI_8260
 742         bool
 743         depends on PCI && 8260
 744         select PPC_INDIRECT_PCI
 745         default y
 746
 747 config 8260_PCI9
 748         bool "Enable workaround for MPC826x erratum PCI 9"
 749         depends on PCI_8260 && !8272
 750         default y
 751
 752 choice
 753         prompt "IDMA channel for PCI 9 workaround"
 754         depends on 8260_PCI9
 755
 756 config 8260_PCI9_IDMA1
 757         bool "IDMA1"
 758
 759 config 8260_PCI9_IDMA2
 760         bool "IDMA2"
 761
 762 config 8260_PCI9_IDMA3
 763         bool "IDMA3"
 764
 765 config 8260_PCI9_IDMA4
 766         bool "IDMA4"
 767
 768 endchoice
 769
 770 source "drivers/pci/pcie/Kconfig"
 771
 772 source "drivers/pci/Kconfig"
 773
 774 source "drivers/pcmcia/Kconfig"
 775
 776 source "drivers/pci/hotplug/Kconfig"
 777
 778 config HAS_RAPIDIO
 779         bool
 780         default n
 781
 782 config RAPIDIO
 783         bool "RapidIO support"
 784         depends on HAS_RAPIDIO || PCI
 785         help
 786           If you say Y here, the kernel will include drivers and
 787           infrastructure code to support RapidIO interconnect devices.
 788
 789 config FSL_RIO
 790         bool "Freescale Embedded SRIO Controller support"
 791         depends on RAPIDIO && HAS_RAPIDIO
 792         default "n"
 793         ---help---
 794           Include support for RapidIO controller on Freescale embedded
 795           processors (MPC8548, MPC8641, etc).
 796
 797 source "drivers/rapidio/Kconfig"
 798
 799 endmenu
 800
 801 menu "Advanced setup"
 802         depends on PPC32
 803
 804 config ADVANCED_OPTIONS
 805         bool "Prompt for advanced kernel configuration options"
 806         help
 807           This option will enable prompting for a variety of advanced kernel
 808           configuration options.  These options can cause the kernel to not
 809           work if they are set incorrectly, but can be used to optimize certain
 810           aspects of kernel memory management.
 811
 812           Unless you know what you are doing, say N here.
 813
 814 comment "Default settings for advanced configuration options are used"
 815         depends on !ADVANCED_OPTIONS
 816
 817 config LOWMEM_SIZE_BOOL
 818         bool "Set maximum low memory"
 819         depends on ADVANCED_OPTIONS
 820         help
 821           This option allows you to set the maximum amount of memory which
 822           will be used as "low memory", that is, memory which the kernel can
 823           access directly, without having to set up a kernel virtual mapping.
 824           This can be useful in optimizing the layout of kernel virtual
 825           memory.
 826
 827           Say N here unless you know what you are doing.
 828
 829 config LOWMEM_SIZE
 830         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 831         default "0x30000000"
 832
 833 config LOWMEM_CAM_NUM_BOOL
 834         bool "Set number of CAMs to use to map low memory"
 835         depends on ADVANCED_OPTIONS && FSL_BOOKE
 836         help
 837           This option allows you to set the maximum number of CAM slots that
 838           will be used to map low memory.  There are a limited number of slots
 839           available and even more limited number that will fit in the L1 MMU.
 840           However, using more entries will allow mapping more low memory.  This
 841           can be useful in optimizing the layout of kernel virtual memory.
 842
 843           Say N here unless you know what you are doing.
 844
 845 config LOWMEM_CAM_NUM
 846         depends on FSL_BOOKE
 847         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 848         default 3
 849
 850 config RELOCATABLE
 851         bool "Build a relocatable kernel (EXPERIMENTAL)"
 852         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 853         help
 854           This builds a kernel image that is capable of running at the
 855           location the kernel is loaded at (some alignment restrictions may
 856           exist).
 857
 858           One use is for the kexec on panic case where the recovery kernel
 859           must live at a different physical address than the primary
 860           kernel.
 861
 862           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 863           it has been loaded at and the compile time physical addresses
 864           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 865           setting can still be useful to bootwrappers that need to know the
 866           load location of the kernel (eg. u-boot/mkimage).
 867
 868 config PAGE_OFFSET_BOOL
 869         bool "Set custom page offset 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 map low memory.  This can be useful in optimizing
 874           the virtual memory layout of the system.
 875
 876           Say N here unless you know what you are doing.
 877
 878 config PAGE_OFFSET
 879         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 880         default "0xc0000000"
 881
 882 config KERNEL_START_BOOL
 883         bool "Set custom kernel base address"
 884         depends on ADVANCED_OPTIONS
 885         help
 886           This option allows you to set the kernel virtual address at which
 887           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 888           however there are times (like kdump) that one might not want them
 889           to be the same.
 890
 891           Say N here unless you know what you are doing.
 892
 893 config KERNEL_START
 894         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 895         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 896         default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
 897         default "0xc0000000"
 898
 899 config PHYSICAL_START_BOOL
 900         bool "Set physical address where the kernel is loaded"
 901         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 902         help
 903           This gives the physical address where the kernel is loaded.
 904
 905           Say N here unless you know what you are doing.
 906
 907 config PHYSICAL_START
 908         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 909         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
 910         default "0x00000000"
 911
 912 config PHYSICAL_ALIGN
 913         hex
 914         default "0x04000000" if FSL_BOOKE
 915         help
 916           This value puts the alignment restrictions on physical address
 917           where kernel is loaded and run from. Kernel is compiled for an
 918           address which meets above alignment restriction.
 919
 920 config TASK_SIZE_BOOL
 921         bool "Set custom user task size"
 922         depends on ADVANCED_OPTIONS
 923         help
 924           This option allows you to set the amount of virtual address space
 925           allocated to user tasks.  This can be useful in optimizing the
 926           virtual memory layout of the system.
 927
 928           Say N here unless you know what you are doing.
 929
 930 config TASK_SIZE
 931         hex "Size of user task space" if TASK_SIZE_BOOL
 932         default "0x80000000" if PPC_PREP || PPC_8xx
 933         default "0xc0000000"
 934
 935 config CONSISTENT_SIZE_BOOL
 936         bool "Set custom consistent memory pool size"
 937         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 938         help
 939           This option allows you to set the size of the
 940           consistent memory pool.  This pool of virtual memory
 941           is used to make consistent memory allocations.
 942
 943 config CONSISTENT_SIZE
 944         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 945         default "0x00200000" if NOT_COHERENT_CACHE
 946
 947 config PIN_TLB
 948         bool "Pinned Kernel TLBs (860 ONLY)"
 949         depends on ADVANCED_OPTIONS && 8xx
 950 endmenu
 951
 952 if PPC64
 953 config RELOCATABLE
 954         bool "Build a relocatable kernel"
 955         help
 956           This builds a kernel image that is capable of running anywhere
 957           in the RMA (real memory area) at any 16k-aligned base address.
 958           The kernel is linked as a position-independent executable (PIE)
 959           and contains dynamic relocations which are processed early
 960           in the bootup process.
 961
 962           One use is for the kexec on panic case where the recovery kernel
 963           must live at a different physical address than the primary
 964           kernel.
 965
 966 config PAGE_OFFSET
 967         hex
 968         default "0xc000000000000000"
 969 config KERNEL_START
 970         hex
 971         default "0xc000000000000000"
 972 config PHYSICAL_START
 973         hex
 974         default "0x00000000"
 975 endif
 976
 977 source "net/Kconfig"
 978
 979 source "drivers/Kconfig"
 980
 981 source "fs/Kconfig"
 982
 983 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 984
 985 source "lib/Kconfig"
 986
 987 source "arch/powerpc/Kconfig.debug"
 988
 989 source "security/Kconfig"
 990
 991 config KEYS_COMPAT
 992         bool
 993         depends on COMPAT && KEYS
 994         default y
 995
 996 source "crypto/Kconfig"
 997
 998 config PPC_CLOCK
 999         bool
1000         default n
1001         select HAVE_CLK
1002
1003 config PPC_LIB_RHEAP
1004         bool
1005
1006 source "arch/powerpc/kvm/Kconfig"