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 config PPC64
   8         bool "64-bit kernel"
   9         default n
  10         help
  11           This option selects whether a 32-bit or a 64-bit kernel
  12           will be built.
  13
  14 config PPC32
  15         bool
  16         default y if !PPC64
  17
  18 config 64BIT
  19         bool
  20         default y if PPC64
  21
  22 config PPC_MERGE
  23         def_bool y
  24
  25 config MMU
  26         bool
  27         default y
  28
  29 config UID16
  30         bool
  31
  32 config GENERIC_HARDIRQS
  33         bool
  34         default y
  35
  36 config RWSEM_GENERIC_SPINLOCK
  37         bool
  38
  39 config RWSEM_XCHGADD_ALGORITHM
  40         bool
  41         default y
  42
  43 config GENERIC_CALIBRATE_DELAY
  44         bool
  45         default y
  46
  47 config PPC
  48         bool
  49         default y
  50
  51 config EARLY_PRINTK
  52         bool
  53         default y if PPC64
  54
  55 config COMPAT
  56         bool
  57         default y if PPC64
  58
  59 config SYSVIPC_COMPAT
  60         bool
  61         depends on COMPAT && SYSVIPC
  62         default y
  63
  64 # All PPC32s use generic nvram driver through ppc_md
  65 config GENERIC_NVRAM
  66         bool
  67         default y if PPC32
  68
  69 config SCHED_NO_NO_OMIT_FRAME_POINTER
  70         bool
  71         default y
  72
  73 config ARCH_MAY_HAVE_PC_FDC
  74         bool
  75         default y
  76
  77 menu "Processor support"
  78 choice
  79         prompt "Processor Type"
  80         depends on PPC32
  81         default 6xx
  82
  83 config 6xx
  84         bool "6xx/7xx/74xx"
  85         select PPC_FPU
  86         help
  87           There are four families of PowerPC chips supported.  The more common
  88           types (601, 603, 604, 740, 750, 7400), the Motorola embedded
  89           versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
  90           embedded versions (403 and 405) and the high end 64 bit Power
  91           processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
  92
  93           Unless you are building a kernel for one of the embedded processor
  94           systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
  95           Note that the kernel runs in 32-bit mode even on 64-bit chips.
  96
  97 config PPC_52xx
  98         bool "Freescale 52xx"
  99
 100 config PPC_82xx
 101         bool "Freescale 82xx"
 102
 103 config PPC_83xx
 104         bool "Freescale 83xx"
 105
 106 config 40x
 107         bool "AMCC 40x"
 108
 109 config 44x
 110         bool "AMCC 44x"
 111
 112 config 8xx
 113         bool "Freescale 8xx"
 114
 115 config E200
 116         bool "Freescale e200"
 117
 118 config E500
 119         bool "Freescale e500"
 120 endchoice
 121
 122 config POWER4_ONLY
 123         bool "Optimize for POWER4"
 124         depends on PPC64
 125         default n
 126         ---help---
 127           Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
 128           The resulting binary will not work on POWER3 or RS64 processors
 129           when compiled with binutils 2.15 or later.
 130
 131 config POWER3
 132         bool
 133         depends on PPC64
 134         default y if !POWER4_ONLY
 135
 136 config POWER4
 137         depends on PPC64
 138         def_bool y
 139
 140 config PPC_FPU
 141         bool
 142         default y if PPC64
 143
 144 config BOOKE
 145         bool
 146         depends on E200 || E500
 147         default y
 148
 149 config FSL_BOOKE
 150         bool
 151         depends on E200 || E500
 152         default y
 153
 154 config PTE_64BIT
 155         bool
 156         depends on 44x || E500
 157         default y if 44x
 158         default y if E500 && PHYS_64BIT
 159
 160 config PHYS_64BIT
 161         bool 'Large physical address support' if E500
 162         depends on 44x || E500
 163         default y if 44x
 164         ---help---
 165           This option enables kernel support for larger than 32-bit physical
 166           addresses.  This features is not be available on all e500 cores.
 167
 168           If in doubt, say N here.
 169
 170 config ALTIVEC
 171         bool "AltiVec Support"
 172         depends on 6xx || POWER4
 173         ---help---
 174           This option enables kernel support for the Altivec extensions to the
 175           PowerPC processor. The kernel currently supports saving and restoring
 176           altivec registers, and turning on the 'altivec enable' bit so user
 177           processes can execute altivec instructions.
 178
 179           This option is only usefully if you have a processor that supports
 180           altivec (G4, otherwise known as 74xx series), but does not have
 181           any affect on a non-altivec cpu (it does, however add code to the
 182           kernel).
 183
 184           If in doubt, say Y here.
 185
 186 config SPE
 187         bool "SPE Support"
 188         depends on E200 || E500
 189         ---help---
 190           This option enables kernel support for the Signal Processing
 191           Extensions (SPE) to the PowerPC processor. The kernel currently
 192           supports saving and restoring SPE registers, and turning on the
 193           'spe enable' bit so user processes can execute SPE instructions.
 194
 195           This option is only useful if you have a processor that supports
 196           SPE (e500, otherwise known as 85xx series), but does not have any
 197           effect on a non-spe cpu (it does, however add code to the kernel).
 198
 199           If in doubt, say Y here.
 200
 201 config PPC_STD_MMU
 202         bool
 203         depends on 6xx || POWER3 || POWER4 || PPC64
 204         default y
 205
 206 config PPC_STD_MMU_32
 207         def_bool y
 208         depends on PPC_STD_MMU && PPC32
 209
 210 config SMP
 211         depends on PPC_STD_MMU
 212         bool "Symmetric multi-processing support"
 213         ---help---
 214           This enables support for systems with more than one CPU. If you have
 215           a system with only one CPU, say N. If you have a system with more
 216           than one CPU, say Y.  Note that the kernel does not currently
 217           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 218           since they have inadequate hardware support for multiprocessor
 219           operation.
 220
 221           If you say N here, the kernel will run on single and multiprocessor
 222           machines, but will use only one CPU of a multiprocessor machine. If
 223           you say Y here, the kernel will run on single-processor machines.
 224           On a single-processor machine, the kernel will run faster if you say
 225           N here.
 226
 227           If you don't know what to do here, say N.
 228
 229 config NR_CPUS
 230         int "Maximum number of CPUs (2-32)"
 231         range 2 128
 232         depends on SMP
 233         default "32" if PPC64
 234         default "4"
 235
 236 config NOT_COHERENT_CACHE
 237         bool
 238         depends on 4xx || 8xx || E200
 239         default y
 240 endmenu
 241
 242 source "init/Kconfig"
 243
 244 menu "Platform support"
 245         depends on PPC64 || 6xx
 246
 247 choice
 248         prompt "Machine type"
 249         default PPC_MULTIPLATFORM
 250
 251 config PPC_MULTIPLATFORM
 252         bool "Generic desktop/server/laptop"
 253         help
 254           Select this option if configuring for an IBM pSeries or
 255           RS/6000 machine, an Apple machine, or a PReP, CHRP,
 256           Maple or Cell-based machine.
 257
 258 config PPC_ISERIES
 259         bool "IBM Legacy iSeries"
 260         depends on PPC64
 261
 262 config EMBEDDED6xx
 263         bool "Embedded 6xx/7xx/7xxx-based board"
 264         depends on PPC32
 265
 266 config APUS
 267         bool "Amiga-APUS"
 268         depends on PPC32 && BROKEN
 269         help
 270           Select APUS if configuring for a PowerUP Amiga.
 271           More information is available at:
 272           <http://linux-apus.sourceforge.net/>.
 273 endchoice
 274
 275 config PPC_PSERIES
 276         depends on PPC_MULTIPLATFORM && PPC64
 277         bool "  IBM pSeries & new (POWER5-based) iSeries"
 278         select PPC_I8259
 279         select PPC_RTAS
 280         select RTAS_ERROR_LOGGING
 281         select RTAS_FW
 282         default y
 283
 284 config PPC_CHRP
 285         bool "  Common Hardware Reference Platform (CHRP) based machines"
 286         depends on PPC_MULTIPLATFORM && PPC32
 287         select PPC_I8259
 288         select PPC_INDIRECT_PCI
 289         select PPC_RTAS
 290         select PPC_MPC106
 291         default y
 292
 293 config PPC_PMAC
 294         bool "  Apple PowerMac based machines"
 295         depends on PPC_MULTIPLATFORM
 296         select PPC_INDIRECT_PCI if PPC32
 297         select PPC_MPC106 if PPC32
 298         default y
 299
 300 config PPC_PMAC64
 301         bool
 302         depends on PPC_PMAC && POWER4
 303         select U3_DART
 304         default y
 305
 306 config PPC_PREP
 307         bool "  PowerPC Reference Platform (PReP) based machines"
 308         depends on PPC_MULTIPLATFORM && PPC32
 309         select PPC_I8259
 310         select PPC_INDIRECT_PCI
 311         default y
 312
 313 config PPC_MAPLE
 314         depends on PPC_MULTIPLATFORM && PPC64
 315         bool "  Maple 970FX Evaluation Board"
 316         select U3_DART
 317         select MPIC_BROKEN_U3
 318         default n
 319         help
 320           This option enables support for the Maple 970FX Evaluation Board.
 321           For more informations, refer to <http://www.970eval.com>
 322
 323 config PPC_CELL
 324         bool "  Cell Broadband Processor Architecture"
 325         depends on PPC_MULTIPLATFORM && PPC64
 326         select PPC_RTAS
 327         select RTAS_FW
 328         select MMIO_NVRAM
 329
 330 config PPC_OF
 331         bool
 332         depends on PPC_MULTIPLATFORM    # for now
 333         default y
 334
 335 config XICS
 336         depends on PPC_PSERIES
 337         bool
 338         default y
 339
 340 config U3_DART
 341         bool
 342         depends on PPC_MULTIPLATFORM && PPC64
 343         default n
 344
 345 config MPIC
 346         depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
 347         bool
 348         default y
 349
 350 config PPC_RTAS
 351         bool
 352         default n
 353
 354 config RTAS_ERROR_LOGGING
 355         bool
 356         depends on PPC_RTAS
 357         default n
 358
 359 config RTAS_FW
 360         bool
 361         depends on PPC_RTAS
 362         default n
 363
 364 config MMIO_NVRAM
 365         bool
 366         default n
 367
 368 config MPIC_BROKEN_U3
 369         bool
 370         depends on PPC_MAPLE
 371         default y
 372
 373 config CELL_IIC
 374         depends on PPC_CELL
 375         bool
 376         default y
 377
 378 config IBMVIO
 379         depends on PPC_PSERIES || PPC_ISERIES
 380         bool
 381         default y
 382
 383 config PPC_MPC106
 384         bool
 385         default n
 386
 387 source "drivers/cpufreq/Kconfig"
 388
 389 config CPU_FREQ_PMAC
 390         bool "Support for Apple PowerBooks"
 391         depends on CPU_FREQ && ADB_PMU && PPC32
 392         select CPU_FREQ_TABLE
 393         help
 394           This adds support for frequency switching on Apple PowerBooks,
 395           this currently includes some models of iBook & Titanium
 396           PowerBook.
 397
 398 config PPC601_SYNC_FIX
 399         bool "Workarounds for PPC601 bugs"
 400         depends on 6xx && (PPC_PREP || PPC_PMAC)
 401         help
 402           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 403           mean that extra synchronization instructions are required near
 404           certain instructions, typically those that make major changes to the
 405           CPU state.  These extra instructions reduce performance slightly.
 406           If you say N here, these extra instructions will not be included,
 407           resulting in a kernel which will run faster but may not run at all
 408           on some systems with the PPC601 chip.
 409
 410           If in doubt, say Y here.
 411
 412 config TAU
 413         bool "Thermal Management Support"
 414         depends on 6xx
 415         help
 416           G3 and G4 processors have an on-chip temperature sensor called the
 417           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 418           temperature within 2-4 degrees Celsius. This option shows the current
 419           on-die temperature in /proc/cpuinfo if the cpu supports it.
 420
 421           Unfortunately, on some chip revisions, this sensor is very inaccurate
 422           and in some cases, does not work at all, so don't assume the cpu
 423           temp is actually what /proc/cpuinfo says it is.
 424
 425 config TAU_INT
 426         bool "Interrupt driven TAU driver (DANGEROUS)"
 427         depends on TAU
 428         ---help---
 429           The TAU supports an interrupt driven mode which causes an interrupt
 430           whenever the temperature goes out of range. This is the fastest way
 431           to get notified the temp has exceeded a range. With this option off,
 432           a timer is used to re-check the temperature periodically.
 433
 434           However, on some cpus it appears that the TAU interrupt hardware
 435           is buggy and can cause a situation which would lead unexplained hard
 436           lockups.
 437
 438           Unless you are extending the TAU driver, or enjoy kernel/hardware
 439           debugging, leave this option off.
 440
 441 config TAU_AVERAGE
 442         bool "Average high and low temp"
 443         depends on TAU
 444         ---help---
 445           The TAU hardware can compare the temperature to an upper and lower
 446           bound.  The default behavior is to show both the upper and lower
 447           bound in /proc/cpuinfo. If the range is large, the temperature is
 448           either changing a lot, or the TAU hardware is broken (likely on some
 449           G4's). If the range is small (around 4 degrees), the temperature is
 450           relatively stable.  If you say Y here, a single temperature value,
 451           halfway between the upper and lower bounds, will be reported in
 452           /proc/cpuinfo.
 453
 454           If in doubt, say N here.
 455 endmenu
 456
 457 source arch/powerpc/platforms/embedded6xx/Kconfig
 458 source arch/powerpc/platforms/4xx/Kconfig
 459 source arch/powerpc/platforms/85xx/Kconfig
 460 source arch/powerpc/platforms/8xx/Kconfig
 461
 462 menu "Kernel options"
 463
 464 config HIGHMEM
 465         bool "High memory support"
 466         depends on PPC32
 467
 468 source kernel/Kconfig.hz
 469 source kernel/Kconfig.preempt
 470 source "fs/Kconfig.binfmt"
 471
 472 # We optimistically allocate largepages from the VM, so make the limit
 473 # large enough (16MB). This badly named config option is actually
 474 # max order + 1
 475 config FORCE_MAX_ZONEORDER
 476         int
 477         depends on PPC64
 478         default "13"
 479
 480 config MATH_EMULATION
 481         bool "Math emulation"
 482         depends on 4xx || 8xx || E200 || E500
 483         ---help---
 484           Some PowerPC chips designed for embedded applications do not have
 485           a floating-point unit and therefore do not implement the
 486           floating-point instructions in the PowerPC instruction set.  If you
 487           say Y here, the kernel will include code to emulate a floating-point
 488           unit, which will allow programs that use floating-point
 489           instructions to run.
 490
 491 config IOMMU_VMERGE
 492         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 493         depends on EXPERIMENTAL && PPC64
 494         default n
 495         help
 496           Cause IO segments sent to a device for DMA to be merged virtually
 497           by the IOMMU when they happen to have been allocated contiguously.
 498           This doesn't add pressure to the IOMMU allocator. However, some
 499           drivers don't support getting large merged segments coming back
 500           from *_map_sg(). Say Y if you know the drivers you are using are
 501           properly handling this case.
 502
 503 config HOTPLUG_CPU
 504         bool "Support for enabling/disabling CPUs"
 505         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 506         ---help---
 507           Say Y here to be able to disable and re-enable individual
 508           CPUs at runtime on SMP machines.
 509
 510           Say N if you are unsure.
 511
 512 config KEXEC
 513         bool "kexec system call (EXPERIMENTAL)"
 514         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 515         help
 516           kexec is a system call that implements the ability to shutdown your
 517           current kernel, and to start another kernel.  It is like a reboot
 518           but it is indepedent of the system firmware.   And like a reboot
 519           you can start any kernel with it, not just Linux.
 520
 521           The name comes from the similiarity to the exec system call.
 522
 523           It is an ongoing process to be certain the hardware in a machine
 524           is properly shutdown, so do not be surprised if this code does not
 525           initially work for you.  It may help to enable device hotplugging
 526           support.  As of this writing the exact hardware interface is
 527           strongly in flux, so no good recommendation can be made.
 528
 529 config EMBEDDEDBOOT
 530         bool
 531         depends on 8xx || 8260
 532         default y
 533
 534 config PC_KEYBOARD
 535         bool "PC PS/2 style Keyboard"
 536         depends on 4xx || CPM2
 537
 538 config PPCBUG_NVRAM
 539         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 540         default y if PPC_PREP
 541
 542 config IRQ_ALL_CPUS
 543         bool "Distribute interrupts on all CPUs by default"
 544         depends on SMP && !MV64360
 545         help
 546           This option gives the kernel permission to distribute IRQs across
 547           multiple CPUs.  Saying N here will route all IRQs to the first
 548           CPU.  Generally saying Y is safe, although some problems have been
 549           reported with SMP Power Macintoshes with this option enabled.
 550
 551 source "arch/powerpc/platforms/pseries/Kconfig"
 552
 553 config NUMA
 554         bool "NUMA support"
 555         depends on PPC64
 556         default y if SMP && PPC_PSERIES
 557
 558 config ARCH_SELECT_MEMORY_MODEL
 559         def_bool y
 560         depends on PPC64
 561
 562 config ARCH_FLATMEM_ENABLE
 563        def_bool y
 564        depends on PPC64 && !NUMA
 565
 566 config ARCH_DISCONTIGMEM_ENABLE
 567         def_bool y
 568         depends on SMP && PPC_PSERIES
 569
 570 config ARCH_DISCONTIGMEM_DEFAULT
 571         def_bool y
 572         depends on ARCH_DISCONTIGMEM_ENABLE
 573
 574 config ARCH_SPARSEMEM_ENABLE
 575         def_bool y
 576         depends on ARCH_DISCONTIGMEM_ENABLE
 577
 578 source "mm/Kconfig"
 579
 580 config HAVE_ARCH_EARLY_PFN_TO_NID
 581         def_bool y
 582         depends on NEED_MULTIPLE_NODES
 583
 584 # Some NUMA nodes have memory ranges that span
 585 # other nodes.  Even though a pfn is valid and
 586 # between a node's start and end pfns, it may not
 587 # reside on that node.
 588 #
 589 # This is a relatively temporary hack that should
 590 # be able to go away when sparsemem is fully in
 591 # place
 592
 593 config NODES_SPAN_OTHER_NODES
 594         def_bool y
 595         depends on NEED_MULTIPLE_NODES
 596
 597 config SCHED_SMT
 598         bool "SMT (Hyperthreading) scheduler support"
 599         depends on PPC64 && SMP
 600         default off
 601         help
 602           SMT scheduler support improves the CPU scheduler's decision making
 603           when dealing with POWER5 cpus at a cost of slightly increased
 604           overhead in some places. If unsure say N here.
 605
 606 config PROC_DEVICETREE
 607         bool "Support for device tree in /proc"
 608         depends on PROC_FS
 609         help
 610           This option adds a device-tree directory under /proc which contains
 611           an image of the device tree that the kernel copies from Open
 612           Firmware or other boot firmware. If unsure, say Y here.
 613
 614 source "arch/powerpc/platforms/prep/Kconfig"
 615
 616 config CMDLINE_BOOL
 617         bool "Default bootloader kernel arguments"
 618         depends on !PPC_ISERIES
 619
 620 config CMDLINE
 621         string "Initial kernel command string"
 622         depends on CMDLINE_BOOL
 623         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 624         help
 625           On some platforms, there is currently no way for the boot loader to
 626           pass arguments to the kernel. For these platforms, you can supply
 627           some command-line options at build time by entering them here.  In
 628           most cases you will need to specify the root device here.
 629
 630 if !44x || BROKEN
 631 source kernel/power/Kconfig
 632 endif
 633
 634 config SECCOMP
 635         bool "Enable seccomp to safely compute untrusted bytecode"
 636         depends on PROC_FS
 637         default y
 638         help
 639           This kernel feature is useful for number crunching applications
 640           that may need to compute untrusted bytecode during their
 641           execution. By using pipes or other transports made available to
 642           the process as file descriptors supporting the read/write
 643           syscalls, it's possible to isolate those applications in
 644           their own address space using seccomp. Once seccomp is
 645           enabled via /proc/<pid>/seccomp, it cannot be disabled
 646           and the task is only allowed to execute a few safe syscalls
 647           defined by each seccomp mode.
 648
 649           If unsure, say Y. Only embedded should say N here.
 650
 651 endmenu
 652
 653 config ISA_DMA_API
 654         bool
 655         default y
 656
 657 menu "Bus options"
 658
 659 config ISA
 660         bool "Support for ISA-bus hardware"
 661         depends on PPC_PREP || PPC_CHRP
 662         select PPC_I8259
 663         help
 664           Find out whether you have ISA slots on your motherboard.  ISA is the
 665           name of a bus system, i.e. the way the CPU talks to the other stuff
 666           inside your box.  If you have an Apple machine, say N here; if you
 667           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 668           you have an embedded board, consult your board documentation.
 669
 670 config GENERIC_ISA_DMA
 671         bool
 672         depends on PPC64 || POWER4 || 6xx && !CPM2
 673         default y
 674
 675 config PPC_I8259
 676         bool
 677         default y if 85xx
 678         default n
 679
 680 config PPC_INDIRECT_PCI
 681         bool
 682         depends on PCI
 683         default y if 40x || 44x || 85xx || 83xx
 684         default n
 685
 686 config EISA
 687         bool
 688
 689 config SBUS
 690         bool
 691
 692 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 693 config MCA
 694         bool
 695
 696 config PCI
 697         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 698         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 699         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 700         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 701         help
 702           Find out whether your system includes a PCI bus. PCI is the name of
 703           a bus system, i.e. the way the CPU talks to the other stuff inside
 704           your box.  If you say Y here, the kernel will include drivers and
 705           infrastructure code to support PCI bus devices.
 706
 707 config PCI_DOMAINS
 708         bool
 709         default PCI
 710
 711 config MPC83xx_PCI2
 712         bool "  Supprt for 2nd PCI host controller"
 713         depends on PCI && MPC834x
 714         default y if MPC834x_SYS
 715
 716 config PCI_QSPAN
 717         bool "QSpan PCI"
 718         depends on !4xx && !CPM2 && 8xx
 719         select PPC_I8259
 720         help
 721           Say Y here if you have a system based on a Motorola 8xx-series
 722           embedded processor with a QSPAN PCI interface, otherwise say N.
 723
 724 config PCI_8260
 725         bool
 726         depends on PCI && 8260
 727         select PPC_INDIRECT_PCI
 728         default y
 729
 730 config 8260_PCI9
 731         bool "  Enable workaround for MPC826x erratum PCI 9"
 732         depends on PCI_8260 && !ADS8272
 733         default y
 734
 735 choice
 736         prompt "  IDMA channel for PCI 9 workaround"
 737         depends on 8260_PCI9
 738
 739 config 8260_PCI9_IDMA1
 740         bool "IDMA1"
 741
 742 config 8260_PCI9_IDMA2
 743         bool "IDMA2"
 744
 745 config 8260_PCI9_IDMA3
 746         bool "IDMA3"
 747
 748 config 8260_PCI9_IDMA4
 749         bool "IDMA4"
 750
 751 endchoice
 752
 753 source "drivers/pci/Kconfig"
 754
 755 source "drivers/pcmcia/Kconfig"
 756
 757 source "drivers/pci/hotplug/Kconfig"
 758
 759 endmenu
 760
 761 menu "Advanced setup"
 762         depends on PPC32
 763
 764 config ADVANCED_OPTIONS
 765         bool "Prompt for advanced kernel configuration options"
 766         help
 767           This option will enable prompting for a variety of advanced kernel
 768           configuration options.  These options can cause the kernel to not
 769           work if they are set incorrectly, but can be used to optimize certain
 770           aspects of kernel memory management.
 771
 772           Unless you know what you are doing, say N here.
 773
 774 comment "Default settings for advanced configuration options are used"
 775         depends on !ADVANCED_OPTIONS
 776
 777 config HIGHMEM_START_BOOL
 778         bool "Set high memory pool address"
 779         depends on ADVANCED_OPTIONS && HIGHMEM
 780         help
 781           This option allows you to set the base address of the kernel virtual
 782           area used to map high memory pages.  This can be useful in
 783           optimizing the layout of kernel virtual memory.
 784
 785           Say N here unless you know what you are doing.
 786
 787 config HIGHMEM_START
 788         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 789         default "0xfe000000"
 790
 791 config LOWMEM_SIZE_BOOL
 792         bool "Set maximum low memory"
 793         depends on ADVANCED_OPTIONS
 794         help
 795           This option allows you to set the maximum amount of memory which
 796           will be used as "low memory", that is, memory which the kernel can
 797           access directly, without having to set up a kernel virtual mapping.
 798           This can be useful in optimizing the layout of kernel virtual
 799           memory.
 800
 801           Say N here unless you know what you are doing.
 802
 803 config LOWMEM_SIZE
 804         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 805         default "0x30000000"
 806
 807 config KERNEL_START_BOOL
 808         bool "Set custom kernel base address"
 809         depends on ADVANCED_OPTIONS
 810         help
 811           This option allows you to set the kernel virtual address at which
 812           the kernel will map low memory (the kernel image will be linked at
 813           this address).  This can be useful in optimizing the virtual memory
 814           layout of the system.
 815
 816           Say N here unless you know what you are doing.
 817
 818 config KERNEL_START
 819         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 820         default "0xc0000000"
 821
 822 config TASK_SIZE_BOOL
 823         bool "Set custom user task size"
 824         depends on ADVANCED_OPTIONS
 825         help
 826           This option allows you to set the amount of virtual address space
 827           allocated to user tasks.  This can be useful in optimizing the
 828           virtual memory layout of the system.
 829
 830           Say N here unless you know what you are doing.
 831
 832 config TASK_SIZE
 833         hex "Size of user task space" if TASK_SIZE_BOOL
 834         default "0x80000000"
 835
 836 config CONSISTENT_START_BOOL
 837         bool "Set custom consistent memory pool address"
 838         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 839         help
 840           This option allows you to set the base virtual address
 841           of the the consistent memory pool.  This pool of virtual
 842           memory is used to make consistent memory allocations.
 843
 844 config CONSISTENT_START
 845         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 846         default "0xff100000" if NOT_COHERENT_CACHE
 847
 848 config CONSISTENT_SIZE_BOOL
 849         bool "Set custom consistent memory pool size"
 850         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 851         help
 852           This option allows you to set the size of the the
 853           consistent memory pool.  This pool of virtual memory
 854           is used to make consistent memory allocations.
 855
 856 config CONSISTENT_SIZE
 857         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 858         default "0x00200000" if NOT_COHERENT_CACHE
 859
 860 config BOOT_LOAD_BOOL
 861         bool "Set the boot link/load address"
 862         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 863         help
 864           This option allows you to set the initial load address of the zImage
 865           or zImage.initrd file.  This can be useful if you are on a board
 866           which has a small amount of memory.
 867
 868           Say N here unless you know what you are doing.
 869
 870 config BOOT_LOAD
 871         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 872         default "0x00400000" if 40x || 8xx || 8260
 873         default "0x01000000" if 44x
 874         default "0x00800000"
 875
 876 config PIN_TLB
 877         bool "Pinned Kernel TLBs (860 ONLY)"
 878         depends on ADVANCED_OPTIONS && 8xx
 879 endmenu
 880
 881 if PPC64
 882 config KERNEL_START
 883         hex
 884         default "0xc000000000000000"
 885 endif
 886
 887 source "net/Kconfig"
 888
 889 source "drivers/Kconfig"
 890
 891 source "fs/Kconfig"
 892
 893 # XXX source "arch/ppc/8xx_io/Kconfig"
 894
 895 # XXX source "arch/ppc/8260_io/Kconfig"
 896
 897 source "arch/powerpc/platforms/iseries/Kconfig"
 898
 899 source "lib/Kconfig"
 900
 901 source "arch/powerpc/oprofile/Kconfig"
 902
 903 source "arch/powerpc/Kconfig.debug"
 904
 905 source "security/Kconfig"
 906
 907 config KEYS_COMPAT
 908         bool
 909         depends on COMPAT && KEYS
 910         default y
 911
 912 source "crypto/Kconfig"