arch/powerpc/Kconfig

   1 # For a description of the syntax of this configuration file,
   2 # see Documentation/kbuild/kconfig-language.txt.
   3 #
   4
   5 mainmenu "Linux/PowerPC Kernel Configuration"
   6
   7 source "arch/powerpc/platforms/Kconfig.cputype"
   8
   9 config PPC32
  10         bool
  11         default y if !PPC64
  12
  13 config 64BIT
  14         bool
  15         default y if PPC64
  16
  17 config WORD_SIZE
  18         int
  19         default 64 if PPC64
  20         default 32 if !PPC64
  21
  22 config PPC_MERGE
  23         def_bool y
  24
  25 config MMU
  26         bool
  27         default y
  28
  29 config GENERIC_CMOS_UPDATE
  30         def_bool y
  31
  32 config GENERIC_TIME
  33         def_bool y
  34
  35 config GENERIC_TIME_VSYSCALL
  36         def_bool y
  37
  38 config GENERIC_CLOCKEVENTS
  39         def_bool y
  40
  41 config GENERIC_HARDIRQS
  42         bool
  43         default y
  44
  45 config HAVE_SETUP_PER_CPU_AREA
  46         def_bool PPC64
  47
  48 config IRQ_PER_CPU
  49         bool
  50         default y
  51
  52 config STACKTRACE_SUPPORT
  53         bool
  54         default y
  55
  56 config TRACE_IRQFLAGS_SUPPORT
  57         bool
  58         depends on PPC64
  59         default y
  60
  61 config LOCKDEP_SUPPORT
  62         bool
  63         default y
  64
  65 config RWSEM_GENERIC_SPINLOCK
  66         bool
  67
  68 config RWSEM_XCHGADD_ALGORITHM
  69         bool
  70         default y
  71
  72 config GENERIC_LOCKBREAK
  73         bool
  74         default y
  75         depends on SMP && PREEMPT
  76
  77 config ARCH_HAS_ILOG2_U32
  78         bool
  79         default y
  80
  81 config ARCH_HAS_ILOG2_U64
  82         bool
  83         default y if 64BIT
  84
  85 config GENERIC_HWEIGHT
  86         bool
  87         default y
  88
  89 config GENERIC_CALIBRATE_DELAY
  90         bool
  91         default y
  92
  93 config GENERIC_FIND_NEXT_BIT
  94         bool
  95         default y
  96
  97 config GENERIC_GPIO
  98         bool
  99         help
 100           Generic GPIO API support
 101
 102 config ARCH_NO_VIRT_TO_BUS
 103         def_bool PPC64
 104
 105 config PPC
 106         bool
 107         default y
 108         select HAVE_IDE
 109         select HAVE_OPROFILE
 110         select HAVE_KPROBES
 111         select HAVE_KRETPROBES
 112         select HAVE_LMB
 113
 114 config EARLY_PRINTK
 115         bool
 116         default y
 117
 118 config COMPAT
 119         bool
 120         default y if PPC64
 121         select COMPAT_BINFMT_ELF
 122
 123 config SYSVIPC_COMPAT
 124         bool
 125         depends on COMPAT && SYSVIPC
 126         default y
 127
 128 # All PPC32s use generic nvram driver through ppc_md
 129 config GENERIC_NVRAM
 130         bool
 131         default y if PPC32
 132
 133 config SCHED_NO_NO_OMIT_FRAME_POINTER
 134         bool
 135         default y
 136
 137 config ARCH_MAY_HAVE_PC_FDC
 138         bool
 139         default !PPC_PSERIES || PCI
 140
 141 config PPC_OF
 142         def_bool y
 143
 144 config OF
 145         def_bool y
 146
 147 config PPC_UDBG_16550
 148         bool
 149         default n
 150
 151 config GENERIC_TBSYNC
 152         bool
 153         default y if PPC32 && SMP
 154         default n
 155
 156 config AUDIT_ARCH
 157         bool
 158         default y
 159
 160 config GENERIC_BUG
 161         bool
 162         default y
 163         depends on BUG
 164
 165 config SYS_SUPPORTS_APM_EMULATION
 166         default y if PMAC_APM_EMU
 167         bool
 168
 169 config DEFAULT_UIMAGE
 170         bool
 171         help
 172           Used to allow a board to specify it wants a uImage built by default
 173         default n
 174
 175 config REDBOOT
 176         bool
 177
 178 config HIBERNATE_32
 179         bool
 180         depends on (PPC_PMAC && !SMP) || BROKEN
 181         default y
 182
 183 config HIBERNATE_64
 184         bool
 185         depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
 186         default y
 187
 188 config ARCH_HIBERNATION_POSSIBLE
 189         bool
 190         depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
 191         default y
 192
 193 config ARCH_SUSPEND_POSSIBLE
 194         def_bool y
 195         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200
 196
 197 config PPC_DCR_NATIVE
 198         bool
 199         default n
 200
 201 config PPC_DCR_MMIO
 202         bool
 203         default n
 204
 205 config PPC_DCR
 206         bool
 207         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 208         default y
 209
 210 config PPC_OF_PLATFORM_PCI
 211         bool
 212         depends on PCI
 213         depends on PPC64 # not supported on 32 bits yet
 214         default n
 215
 216 source "init/Kconfig"
 217
 218 source "arch/powerpc/sysdev/Kconfig"
 219 source "arch/powerpc/platforms/Kconfig"
 220
 221 menu "Kernel options"
 222
 223 config HIGHMEM
 224         bool "High memory support"
 225         depends on PPC32
 226
 227 source kernel/time/Kconfig
 228 source kernel/Kconfig.hz
 229 source kernel/Kconfig.preempt
 230 source "fs/Kconfig.binfmt"
 231
 232 config HUGETLB_PAGE_SIZE_VARIABLE
 233         bool
 234         depends on HUGETLB_PAGE
 235         default y
 236
 237 config MATH_EMULATION
 238         bool "Math emulation"
 239         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 240         ---help---
 241           Some PowerPC chips designed for embedded applications do not have
 242           a floating-point unit and therefore do not implement the
 243           floating-point instructions in the PowerPC instruction set.  If you
 244           say Y here, the kernel will include code to emulate a floating-point
 245           unit, which will allow programs that use floating-point
 246           instructions to run.
 247
 248 config 8XX_MINIMAL_FPEMU
 249         bool "Minimal math emulation for 8xx"
 250         depends on 8xx && !MATH_EMULATION
 251         help
 252           Older arch/ppc kernels still emulated a few floating point
 253           instructions such as load and store, even when full math
 254           emulation is disabled.  Say "Y" here if you want to preserve
 255           this behavior.
 256
 257           It is recommended that you build a soft-float userspace instead.
 258
 259 config IOMMU_VMERGE
 260         bool "Enable IOMMU virtual merging"
 261         depends on PPC64
 262         default y
 263         help
 264           Cause IO segments sent to a device for DMA to be merged virtually
 265           by the IOMMU when they happen to have been allocated contiguously.
 266           This doesn't add pressure to the IOMMU allocator. However, some
 267           drivers don't support getting large merged segments coming back
 268           from *_map_sg().
 269
 270           Most drivers don't have this problem; it is safe to say Y here.
 271
 272 config IOMMU_HELPER
 273         def_bool PPC64
 274
 275 config HOTPLUG_CPU
 276         bool "Support for enabling/disabling CPUs"
 277         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 278         ---help---
 279           Say Y here to be able to disable and re-enable individual
 280           CPUs at runtime on SMP machines.
 281
 282           Say N if you are unsure.
 283
 284 config ARCH_ENABLE_MEMORY_HOTPLUG
 285         def_bool y
 286
 287 config ARCH_HAS_WALK_MEMORY
 288         def_bool y
 289
 290 config ARCH_ENABLE_MEMORY_HOTREMOVE
 291         def_bool y
 292
 293 config KEXEC
 294         bool "kexec system call (EXPERIMENTAL)"
 295         depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
 296         help
 297           kexec is a system call that implements the ability to shutdown your
 298           current kernel, and to start another kernel.  It is like a reboot
 299           but it is independent of the system firmware.   And like a reboot
 300           you can start any kernel with it, not just Linux.
 301
 302           The name comes from the similarity to the exec system call.
 303
 304           It is an ongoing process to be certain the hardware in a machine
 305           is properly shutdown, so do not be surprised if this code does not
 306           initially work for you.  It may help to enable device hotplugging
 307           support.  As of this writing the exact hardware interface is
 308           strongly in flux, so no good recommendation can be made.
 309
 310 config CRASH_DUMP
 311         bool "Build a kdump crash kernel (EXPERIMENTAL)"
 312         depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
 313         help
 314           Build a kernel suitable for use as a kdump capture kernel.
 315           The kernel will be linked at a different address than normal, and
 316           so can only be used for Kdump.
 317
 318           Don't change this unless you know what you are doing.
 319
 320 config PHYP_DUMP
 321         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 322         depends on PPC_PSERIES && EXPERIMENTAL
 323         help
 324           Hypervisor-assisted dump is meant to be a kdump replacement
 325           offering robustness and speed not possible without system
 326           hypervisor assistence.
 327
 328           If unsure, say "N"
 329
 330 config PPCBUG_NVRAM
 331         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 332         default y if PPC_PREP
 333
 334 config IRQ_ALL_CPUS
 335         bool "Distribute interrupts on all CPUs by default"
 336         depends on SMP && !MV64360
 337         help
 338           This option gives the kernel permission to distribute IRQs across
 339           multiple CPUs.  Saying N here will route all IRQs to the first
 340           CPU.  Generally saying Y is safe, although some problems have been
 341           reported with SMP Power Macintoshes with this option enabled.
 342
 343 config NUMA
 344         bool "NUMA support"
 345         depends on PPC64
 346         default y if SMP && PPC_PSERIES
 347
 348 config NODES_SHIFT
 349         int
 350         default "4"
 351         depends on NEED_MULTIPLE_NODES
 352
 353 config ARCH_SELECT_MEMORY_MODEL
 354         def_bool y
 355         depends on PPC64
 356
 357 config ARCH_FLATMEM_ENABLE
 358         def_bool y
 359         depends on (PPC64 && !NUMA) || PPC32
 360
 361 config ARCH_SPARSEMEM_ENABLE
 362         def_bool y
 363         depends on PPC64
 364         select SPARSEMEM_VMEMMAP_ENABLE
 365
 366 config ARCH_SPARSEMEM_DEFAULT
 367         def_bool y
 368         depends on (SMP && PPC_PSERIES) || PPC_PS3
 369
 370 config ARCH_POPULATES_NODE_MAP
 371         def_bool y
 372
 373 source "mm/Kconfig"
 374
 375 config ARCH_MEMORY_PROBE
 376         def_bool y
 377         depends on MEMORY_HOTPLUG
 378
 379 # Some NUMA nodes have memory ranges that span
 380 # other nodes.  Even though a pfn is valid and
 381 # between a node's start and end pfns, it may not
 382 # reside on that node.  See memmap_init_zone()
 383 # for details.
 384 config NODES_SPAN_OTHER_NODES
 385         def_bool y
 386         depends on NEED_MULTIPLE_NODES
 387
 388 config PPC_HAS_HASH_64K
 389         bool
 390         depends on PPC64
 391         default n
 392
 393 config PPC_64K_PAGES
 394         bool "64k page size"
 395         depends on PPC64
 396         select PPC_HAS_HASH_64K
 397         help
 398           This option changes the kernel logical page size to 64k. On machines
 399           without processor support for 64k pages, the kernel will simulate
 400           them by loading each individual 4k page on demand transparently,
 401           while on hardware with such support, it will be used to map
 402           normal application pages.
 403
 404 config FORCE_MAX_ZONEORDER
 405         int "Maximum zone order"
 406         default "9" if PPC_64K_PAGES
 407         default "13" if PPC64 && !PPC_64K_PAGES
 408         default "11"
 409         help
 410           The kernel memory allocator divides physically contiguous memory
 411           blocks into "zones", where each zone is a power of two number of
 412           pages.  This option selects the largest power of two that the kernel
 413           keeps in the memory allocator.  If you need to allocate very large
 414           blocks of physically contiguous memory, then you may need to
 415           increase this value.
 416
 417           This config option is actually maximum order plus one. For example,
 418           a value of 11 means that the largest free memory block is 2^10 pages.
 419
 420           The page size is not necessarily 4KB.  For example, on 64-bit
 421           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 422           this in mind when choosing a value for this option.
 423
 424 config PPC_SUBPAGE_PROT
 425         bool "Support setting protections for 4k subpages"
 426         depends on PPC_64K_PAGES
 427         help
 428           This option adds support for a system call to allow user programs
 429           to set access permissions (read/write, readonly, or no access)
 430           on the 4k subpages of each 64k page.
 431
 432 config SCHED_SMT
 433         bool "SMT (Hyperthreading) scheduler support"
 434         depends on PPC64 && SMP
 435         help
 436           SMT scheduler support improves the CPU scheduler's decision making
 437           when dealing with POWER5 cpus at a cost of slightly increased
 438           overhead in some places. If unsure say N here.
 439
 440 config PROC_DEVICETREE
 441         bool "Support for device tree in /proc"
 442         depends on PROC_FS
 443         help
 444           This option adds a device-tree directory under /proc which contains
 445           an image of the device tree that the kernel copies from Open
 446           Firmware or other boot firmware. If unsure, say Y here.
 447
 448 config CMDLINE_BOOL
 449         bool "Default bootloader kernel arguments"
 450
 451 config CMDLINE
 452         string "Initial kernel command string"
 453         depends on CMDLINE_BOOL
 454         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 455         help
 456           On some platforms, there is currently no way for the boot loader to
 457           pass arguments to the kernel. For these platforms, you can supply
 458           some command-line options at build time by entering them here.  In
 459           most cases you will need to specify the root device here.
 460
 461 if !44x || BROKEN
 462 config ARCH_WANTS_FREEZER_CONTROL
 463         def_bool y
 464         depends on ADB_PMU
 465
 466 source kernel/power/Kconfig
 467 endif
 468
 469 config SECCOMP
 470         bool "Enable seccomp to safely compute untrusted bytecode"
 471         depends on PROC_FS
 472         default y
 473         help
 474           This kernel feature is useful for number crunching applications
 475           that may need to compute untrusted bytecode during their
 476           execution. By using pipes or other transports made available to
 477           the process as file descriptors supporting the read/write
 478           syscalls, it's possible to isolate those applications in
 479           their own address space using seccomp. Once seccomp is
 480           enabled via /proc/<pid>/seccomp, it cannot be disabled
 481           and the task is only allowed to execute a few safe syscalls
 482           defined by each seccomp mode.
 483
 484           If unsure, say Y. Only embedded should say N here.
 485
 486 endmenu
 487
 488 config ISA_DMA_API
 489         bool
 490         default !PPC_ISERIES || PCI
 491
 492 menu "Bus options"
 493
 494 config ISA
 495         bool "Support for ISA-bus hardware"
 496         depends on PPC_PREP || PPC_CHRP
 497         select PPC_I8259
 498         help
 499           Find out whether you have ISA slots on your motherboard.  ISA is the
 500           name of a bus system, i.e. the way the CPU talks to the other stuff
 501           inside your box.  If you have an Apple machine, say N here; if you
 502           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 503           you have an embedded board, consult your board documentation.
 504
 505 config ZONE_DMA
 506         bool
 507         default y
 508
 509 config GENERIC_ISA_DMA
 510         bool
 511         depends on PPC64 || POWER4 || 6xx && !CPM2
 512         default y
 513
 514 config PPC_INDIRECT_PCI
 515         bool
 516         depends on PCI
 517         default y if 40x || 44x
 518         default n
 519
 520 config EISA
 521         bool
 522
 523 config SBUS
 524         bool
 525
 526 config FSL_SOC
 527         bool
 528
 529 config FSL_PCI
 530         bool
 531         select PPC_INDIRECT_PCI
 532
 533 config 4xx_SOC
 534         bool
 535
 536 config FSL_LBC
 537         bool
 538         help
 539           Freescale Localbus support
 540
 541 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 542 config MCA
 543         bool
 544
 545 config PCI
 546         bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
 547                 || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
 548                 || PPC_PS3 || 44x
 549         default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
 550                 && !PPC_85xx && !PPC_86xx
 551         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 552         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 553         select ARCH_SUPPORTS_MSI
 554         help
 555           Find out whether your system includes a PCI bus. PCI is the name of
 556           a bus system, i.e. the way the CPU talks to the other stuff inside
 557           your box.  If you say Y here, the kernel will include drivers and
 558           infrastructure code to support PCI bus devices.
 559
 560 config PCI_DOMAINS
 561         def_bool PCI
 562
 563 config PCI_SYSCALL
 564         def_bool PCI
 565
 566 config PCI_QSPAN
 567         bool "QSpan PCI"
 568         depends on !4xx && !CPM2 && 8xx
 569         select PPC_I8259
 570         help
 571           Say Y here if you have a system based on a Motorola 8xx-series
 572           embedded processor with a QSPAN PCI interface, otherwise say N.
 573
 574 config PCI_8260
 575         bool
 576         depends on PCI && 8260
 577         select PPC_INDIRECT_PCI
 578         default y
 579
 580 config 8260_PCI9
 581         bool "Enable workaround for MPC826x erratum PCI 9"
 582         depends on PCI_8260 && !8272
 583         default y
 584
 585 choice
 586         prompt "IDMA channel for PCI 9 workaround"
 587         depends on 8260_PCI9
 588
 589 config 8260_PCI9_IDMA1
 590         bool "IDMA1"
 591
 592 config 8260_PCI9_IDMA2
 593         bool "IDMA2"
 594
 595 config 8260_PCI9_IDMA3
 596         bool "IDMA3"
 597
 598 config 8260_PCI9_IDMA4
 599         bool "IDMA4"
 600
 601 endchoice
 602
 603 source "drivers/pci/pcie/Kconfig"
 604
 605 source "drivers/pci/Kconfig"
 606
 607 source "drivers/pcmcia/Kconfig"
 608
 609 source "drivers/pci/hotplug/Kconfig"
 610
 611 endmenu
 612
 613 menu "Advanced setup"
 614         depends on PPC32
 615
 616 config ADVANCED_OPTIONS
 617         bool "Prompt for advanced kernel configuration options"
 618         help
 619           This option will enable prompting for a variety of advanced kernel
 620           configuration options.  These options can cause the kernel to not
 621           work if they are set incorrectly, but can be used to optimize certain
 622           aspects of kernel memory management.
 623
 624           Unless you know what you are doing, say N here.
 625
 626 comment "Default settings for advanced configuration options are used"
 627         depends on !ADVANCED_OPTIONS
 628
 629 config LOWMEM_SIZE_BOOL
 630         bool "Set maximum low memory"
 631         depends on ADVANCED_OPTIONS
 632         help
 633           This option allows you to set the maximum amount of memory which
 634           will be used as "low memory", that is, memory which the kernel can
 635           access directly, without having to set up a kernel virtual mapping.
 636           This can be useful in optimizing the layout of kernel virtual
 637           memory.
 638
 639           Say N here unless you know what you are doing.
 640
 641 config LOWMEM_SIZE
 642         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 643         default "0x30000000"
 644
 645 config RELOCATABLE
 646         bool "Build a relocatable kernel (EXPERIMENTAL)"
 647         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 648         help
 649           This builds a kernel image that is capable of running at the
 650           location the kernel is loaded at (some alignment restrictions may
 651           exist).
 652
 653           One use is for the kexec on panic case where the recovery kernel
 654           must live at a different physical address than the primary
 655           kernel.
 656
 657           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 658           it has been loaded at and the compile time physical addresses
 659           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 660           setting can still be useful to bootwrappers that need to know the
 661           load location of the kernel (eg. u-boot/mkimage).
 662
 663 config PAGE_OFFSET_BOOL
 664         bool "Set custom page offset address"
 665         depends on ADVANCED_OPTIONS
 666         help
 667           This option allows you to set the kernel virtual address at which
 668           the kernel will map low memory.  This can be useful in optimizing
 669           the virtual memory layout of the system.
 670
 671           Say N here unless you know what you are doing.
 672
 673 config PAGE_OFFSET
 674         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 675         default "0xc0000000"
 676
 677 config KERNEL_START_BOOL
 678         bool "Set custom kernel base address"
 679         depends on ADVANCED_OPTIONS
 680         help
 681           This option allows you to set the kernel virtual address at which
 682           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 683           however there are times (like kdump) that one might not want them
 684           to be the same.
 685
 686           Say N here unless you know what you are doing.
 687
 688 config KERNEL_START
 689         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 690         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 691         default "0xc2000000" if CRASH_DUMP
 692         default "0xc0000000"
 693
 694 config PHYSICAL_START_BOOL
 695         bool "Set physical address where the kernel is loaded"
 696         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 697         help
 698           This gives the physical address where the kernel is loaded.
 699
 700           Say N here unless you know what you are doing.
 701
 702 config PHYSICAL_START
 703         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 704         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP
 705         default "0x00000000"
 706
 707 config PHYSICAL_ALIGN
 708         hex
 709         default "0x10000000" if FSL_BOOKE
 710         help
 711           This value puts the alignment restrictions on physical address
 712           where kernel is loaded and run from. Kernel is compiled for an
 713           address which meets above alignment restriction.
 714
 715 config TASK_SIZE_BOOL
 716         bool "Set custom user task size"
 717         depends on ADVANCED_OPTIONS
 718         help
 719           This option allows you to set the amount of virtual address space
 720           allocated to user tasks.  This can be useful in optimizing the
 721           virtual memory layout of the system.
 722
 723           Say N here unless you know what you are doing.
 724
 725 config TASK_SIZE
 726         hex "Size of user task space" if TASK_SIZE_BOOL
 727         default "0x80000000" if PPC_PREP || PPC_8xx
 728         default "0xc0000000"
 729
 730 config CONSISTENT_START_BOOL
 731         bool "Set custom consistent memory pool address"
 732         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 733         help
 734           This option allows you to set the base virtual address
 735           of the consistent memory pool.  This pool of virtual
 736           memory is used to make consistent memory allocations.
 737
 738 config CONSISTENT_START
 739         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 740         default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
 741         default "0xff100000" if NOT_COHERENT_CACHE
 742
 743 config CONSISTENT_SIZE_BOOL
 744         bool "Set custom consistent memory pool size"
 745         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 746         help
 747           This option allows you to set the size of the
 748           consistent memory pool.  This pool of virtual memory
 749           is used to make consistent memory allocations.
 750
 751 config CONSISTENT_SIZE
 752         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 753         default "0x00200000" if NOT_COHERENT_CACHE
 754
 755 config PIN_TLB
 756         bool "Pinned Kernel TLBs (860 ONLY)"
 757         depends on ADVANCED_OPTIONS && 8xx
 758 endmenu
 759
 760 if PPC64
 761 config PAGE_OFFSET
 762         hex
 763         default "0xc000000000000000"
 764 config KERNEL_START
 765         hex
 766         default "0xc000000002000000" if CRASH_DUMP
 767         default "0xc000000000000000"
 768 config PHYSICAL_START
 769         hex
 770         default "0x02000000" if CRASH_DUMP
 771         default "0x00000000"
 772 endif
 773
 774 source "net/Kconfig"
 775
 776 source "drivers/Kconfig"
 777
 778 source "fs/Kconfig"
 779
 780 # XXX source "arch/ppc/8xx_io/Kconfig"
 781
 782 # XXX source "arch/ppc/8260_io/Kconfig"
 783
 784 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 785
 786 source "lib/Kconfig"
 787
 788 source "arch/powerpc/Kconfig.debug"
 789
 790 source "security/Kconfig"
 791
 792 config KEYS_COMPAT
 793         bool
 794         depends on COMPAT && KEYS
 795         default y
 796
 797 source "crypto/Kconfig"
 798
 799 config PPC_CLOCK
 800         bool
 801         default n
 802
 803 config PPC_LIB_RHEAP
 804         bool
 805
 806 source "arch/powerpc/kvm/Kconfig"