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 GENERIC_HARDIRQS
  30         bool
  31         default y
  32
  33 config RWSEM_GENERIC_SPINLOCK
  34         bool
  35
  36 config RWSEM_XCHGADD_ALGORITHM
  37         bool
  38         default y
  39
  40 config GENERIC_CALIBRATE_DELAY
  41         bool
  42         default y
  43
  44 config PPC
  45         bool
  46         default y
  47
  48 config EARLY_PRINTK
  49         bool
  50         default y if PPC64
  51
  52 config COMPAT
  53         bool
  54         default y if PPC64
  55
  56 config SYSVIPC_COMPAT
  57         bool
  58         depends on COMPAT && SYSVIPC
  59         default y
  60
  61 # All PPC32s use generic nvram driver through ppc_md
  62 config GENERIC_NVRAM
  63         bool
  64         default y if PPC32
  65
  66 config SCHED_NO_NO_OMIT_FRAME_POINTER
  67         bool
  68         default y
  69
  70 config ARCH_MAY_HAVE_PC_FDC
  71         bool
  72         default y
  73
  74 menu "Processor support"
  75 choice
  76         prompt "Processor Type"
  77         depends on PPC32
  78         default 6xx
  79
  80 config 6xx
  81         bool "6xx/7xx/74xx"
  82         select PPC_FPU
  83         help
  84           There are four families of PowerPC chips supported.  The more common
  85           types (601, 603, 604, 740, 750, 7400), the Motorola embedded
  86           versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
  87           embedded versions (403 and 405) and the high end 64 bit Power
  88           processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
  89
  90           Unless you are building a kernel for one of the embedded processor
  91           systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
  92           Note that the kernel runs in 32-bit mode even on 64-bit chips.
  93
  94 config PPC_52xx
  95         bool "Freescale 52xx"
  96
  97 config PPC_82xx
  98         bool "Freescale 82xx"
  99
 100 config PPC_83xx
 101         bool "Freescale 83xx"
 102
 103 config 40x
 104         bool "AMCC 40x"
 105
 106 config 44x
 107         bool "AMCC 44x"
 108
 109 config 8xx
 110         bool "Freescale 8xx"
 111
 112 config E200
 113         bool "Freescale e200"
 114
 115 config E500
 116         bool "Freescale e500"
 117 endchoice
 118
 119 config POWER4_ONLY
 120         bool "Optimize for POWER4"
 121         depends on PPC64
 122         default n
 123         ---help---
 124           Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
 125           The resulting binary will not work on POWER3 or RS64 processors
 126           when compiled with binutils 2.15 or later.
 127
 128 config POWER3
 129         bool
 130         depends on PPC64
 131         default y if !POWER4_ONLY
 132
 133 config POWER4
 134         depends on PPC64
 135         def_bool y
 136
 137 config PPC_FPU
 138         bool
 139         default y if PPC64
 140
 141 config BOOKE
 142         bool
 143         depends on E200 || E500
 144         default y
 145
 146 config FSL_BOOKE
 147         bool
 148         depends on E200 || E500
 149         default y
 150
 151 config PTE_64BIT
 152         bool
 153         depends on 44x || E500
 154         default y if 44x
 155         default y if E500 && PHYS_64BIT
 156
 157 config PHYS_64BIT
 158         bool 'Large physical address support' if E500
 159         depends on 44x || E500
 160         default y if 44x
 161         ---help---
 162           This option enables kernel support for larger than 32-bit physical
 163           addresses.  This features is not be available on all e500 cores.
 164
 165           If in doubt, say N here.
 166
 167 config ALTIVEC
 168         bool "AltiVec Support"
 169         depends on 6xx || POWER4
 170         ---help---
 171           This option enables kernel support for the Altivec extensions to the
 172           PowerPC processor. The kernel currently supports saving and restoring
 173           altivec registers, and turning on the 'altivec enable' bit so user
 174           processes can execute altivec instructions.
 175
 176           This option is only usefully if you have a processor that supports
 177           altivec (G4, otherwise known as 74xx series), but does not have
 178           any affect on a non-altivec cpu (it does, however add code to the
 179           kernel).
 180
 181           If in doubt, say Y here.
 182
 183 config SPE
 184         bool "SPE Support"
 185         depends on E200 || E500
 186         ---help---
 187           This option enables kernel support for the Signal Processing
 188           Extensions (SPE) to the PowerPC processor. The kernel currently
 189           supports saving and restoring SPE registers, and turning on the
 190           'spe enable' bit so user processes can execute SPE instructions.
 191
 192           This option is only useful if you have a processor that supports
 193           SPE (e500, otherwise known as 85xx series), but does not have any
 194           effect on a non-spe cpu (it does, however add code to the kernel).
 195
 196           If in doubt, say Y here.
 197
 198 config PPC_STD_MMU
 199         bool
 200         depends on 6xx || POWER3 || POWER4 || PPC64
 201         default y
 202
 203 config PPC_STD_MMU_32
 204         def_bool y
 205         depends on PPC_STD_MMU && PPC32
 206
 207 config SMP
 208         depends on PPC_STD_MMU
 209         bool "Symmetric multi-processing support"
 210         ---help---
 211           This enables support for systems with more than one CPU. If you have
 212           a system with only one CPU, say N. If you have a system with more
 213           than one CPU, say Y.  Note that the kernel does not currently
 214           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 215           since they have inadequate hardware support for multiprocessor
 216           operation.
 217
 218           If you say N here, the kernel will run on single and multiprocessor
 219           machines, but will use only one CPU of a multiprocessor machine. If
 220           you say Y here, the kernel will run on single-processor machines.
 221           On a single-processor machine, the kernel will run faster if you say
 222           N here.
 223
 224           If you don't know what to do here, say N.
 225
 226 config NR_CPUS
 227         int "Maximum number of CPUs (2-128)"
 228         range 2 128
 229         depends on SMP
 230         default "32" if PPC64
 231         default "4"
 232
 233 config NOT_COHERENT_CACHE
 234         bool
 235         depends on 4xx || 8xx || E200
 236         default y
 237 endmenu
 238
 239 source "init/Kconfig"
 240
 241 menu "Platform support"
 242         depends on PPC64 || 6xx
 243
 244 choice
 245         prompt "Machine type"
 246         default PPC_MULTIPLATFORM
 247
 248 config PPC_MULTIPLATFORM
 249         bool "Generic desktop/server/laptop"
 250         help
 251           Select this option if configuring for an IBM pSeries or
 252           RS/6000 machine, an Apple machine, or a PReP, CHRP,
 253           Maple or Cell-based machine.
 254
 255 config PPC_ISERIES
 256         bool "IBM Legacy iSeries"
 257         depends on PPC64
 258
 259 config EMBEDDED6xx
 260         bool "Embedded 6xx/7xx/7xxx-based board"
 261         depends on PPC32 && BROKEN
 262
 263 config APUS
 264         bool "Amiga-APUS"
 265         depends on PPC32 && BROKEN
 266         help
 267           Select APUS if configuring for a PowerUP Amiga.
 268           More information is available at:
 269           <http://linux-apus.sourceforge.net/>.
 270 endchoice
 271
 272 config PPC_PSERIES
 273         depends on PPC_MULTIPLATFORM && PPC64
 274         bool "  IBM pSeries & new (POWER5-based) iSeries"
 275         select PPC_I8259
 276         select PPC_RTAS
 277         select RTAS_ERROR_LOGGING
 278         default y
 279
 280 config PPC_CHRP
 281         bool "  Common Hardware Reference Platform (CHRP) based machines"
 282         depends on PPC_MULTIPLATFORM && PPC32
 283         select PPC_I8259
 284         select PPC_INDIRECT_PCI
 285         select PPC_RTAS
 286         select PPC_MPC106
 287         default y
 288
 289 config PPC_PMAC
 290         bool "  Apple PowerMac based machines"
 291         depends on PPC_MULTIPLATFORM
 292         select PPC_INDIRECT_PCI if PPC32
 293         select PPC_MPC106 if PPC32
 294         default y
 295
 296 config PPC_PMAC64
 297         bool
 298         depends on PPC_PMAC && POWER4
 299         select U3_DART
 300         select GENERIC_TBSYNC
 301         default y
 302
 303 config PPC_PREP
 304         bool "  PowerPC Reference Platform (PReP) based machines"
 305         depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
 306         select PPC_I8259
 307         select PPC_INDIRECT_PCI
 308         default y
 309
 310 config PPC_MAPLE
 311         depends on PPC_MULTIPLATFORM && PPC64
 312         bool "  Maple 970FX Evaluation Board"
 313         select U3_DART
 314         select MPIC_BROKEN_U3
 315         select GENERIC_TBSYNC
 316         default n
 317         help
 318           This option enables support for the Maple 970FX Evaluation Board.
 319           For more informations, refer to <http://www.970eval.com>
 320
 321 config PPC_CELL
 322         bool "  Cell Broadband Processor Architecture"
 323         depends on PPC_MULTIPLATFORM && PPC64
 324         select PPC_RTAS
 325         select MMIO_NVRAM
 326
 327 config PPC_OF
 328         bool
 329         depends on PPC_MULTIPLATFORM    # for now
 330         default y
 331
 332 config XICS
 333         depends on PPC_PSERIES
 334         bool
 335         default y
 336
 337 config U3_DART
 338         bool
 339         depends on PPC_MULTIPLATFORM && PPC64
 340         default n
 341
 342 config MPIC
 343         depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
 344         bool
 345         default y
 346
 347 config PPC_RTAS
 348         bool
 349         default n
 350
 351 config RTAS_ERROR_LOGGING
 352         bool
 353         depends on PPC_RTAS
 354         default n
 355
 356 config RTAS_PROC
 357         bool "Proc interface to RTAS"
 358         depends on PPC_RTAS
 359         default y
 360
 361 config RTAS_FLASH
 362         tristate "Firmware flash interface"
 363         depends on PPC64 && RTAS_PROC
 364
 365 config MMIO_NVRAM
 366         bool
 367         default n
 368
 369 config MPIC_BROKEN_U3
 370         bool
 371         depends on PPC_MAPLE
 372         default y
 373
 374 config CELL_IIC
 375         depends on PPC_CELL
 376         bool
 377         default y
 378
 379 config IBMVIO
 380         depends on PPC_PSERIES || PPC_ISERIES
 381         bool
 382         default y
 383
 384 config PPC_MPC106
 385         bool
 386         default n
 387
 388 config GENERIC_TBSYNC
 389         bool
 390         default y if CONFIG_PPC32 && CONFIG_SMP
 391         default n
 392
 393 source "drivers/cpufreq/Kconfig"
 394
 395 config CPU_FREQ_PMAC
 396         bool "Support for Apple PowerBooks"
 397         depends on CPU_FREQ && ADB_PMU && PPC32
 398         select CPU_FREQ_TABLE
 399         help
 400           This adds support for frequency switching on Apple PowerBooks,
 401           this currently includes some models of iBook & Titanium
 402           PowerBook.
 403
 404 config CPU_FREQ_PMAC64
 405         bool "Support for some Apple G5s"
 406         depends on CPU_FREQ && PMAC_SMU && PPC64
 407         select CPU_FREQ_TABLE
 408         help
 409           This adds support for frequency switching on Apple iMac G5,
 410           and some of the more recent desktop G5 machines as well.
 411
 412 config PPC601_SYNC_FIX
 413         bool "Workarounds for PPC601 bugs"
 414         depends on 6xx && (PPC_PREP || PPC_PMAC)
 415         help
 416           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 417           mean that extra synchronization instructions are required near
 418           certain instructions, typically those that make major changes to the
 419           CPU state.  These extra instructions reduce performance slightly.
 420           If you say N here, these extra instructions will not be included,
 421           resulting in a kernel which will run faster but may not run at all
 422           on some systems with the PPC601 chip.
 423
 424           If in doubt, say Y here.
 425
 426 config TAU
 427         bool "Thermal Management Support"
 428         depends on 6xx
 429         help
 430           G3 and G4 processors have an on-chip temperature sensor called the
 431           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 432           temperature within 2-4 degrees Celsius. This option shows the current
 433           on-die temperature in /proc/cpuinfo if the cpu supports it.
 434
 435           Unfortunately, on some chip revisions, this sensor is very inaccurate
 436           and in some cases, does not work at all, so don't assume the cpu
 437           temp is actually what /proc/cpuinfo says it is.
 438
 439 config TAU_INT
 440         bool "Interrupt driven TAU driver (DANGEROUS)"
 441         depends on TAU
 442         ---help---
 443           The TAU supports an interrupt driven mode which causes an interrupt
 444           whenever the temperature goes out of range. This is the fastest way
 445           to get notified the temp has exceeded a range. With this option off,
 446           a timer is used to re-check the temperature periodically.
 447
 448           However, on some cpus it appears that the TAU interrupt hardware
 449           is buggy and can cause a situation which would lead unexplained hard
 450           lockups.
 451
 452           Unless you are extending the TAU driver, or enjoy kernel/hardware
 453           debugging, leave this option off.
 454
 455 config TAU_AVERAGE
 456         bool "Average high and low temp"
 457         depends on TAU
 458         ---help---
 459           The TAU hardware can compare the temperature to an upper and lower
 460           bound.  The default behavior is to show both the upper and lower
 461           bound in /proc/cpuinfo. If the range is large, the temperature is
 462           either changing a lot, or the TAU hardware is broken (likely on some
 463           G4's). If the range is small (around 4 degrees), the temperature is
 464           relatively stable.  If you say Y here, a single temperature value,
 465           halfway between the upper and lower bounds, will be reported in
 466           /proc/cpuinfo.
 467
 468           If in doubt, say N here.
 469 endmenu
 470
 471 source arch/powerpc/platforms/embedded6xx/Kconfig
 472 source arch/powerpc/platforms/4xx/Kconfig
 473 source arch/powerpc/platforms/85xx/Kconfig
 474 source arch/powerpc/platforms/8xx/Kconfig
 475
 476 menu "Kernel options"
 477
 478 config HIGHMEM
 479         bool "High memory support"
 480         depends on PPC32
 481
 482 source kernel/Kconfig.hz
 483 source kernel/Kconfig.preempt
 484 source "fs/Kconfig.binfmt"
 485
 486 # We optimistically allocate largepages from the VM, so make the limit
 487 # large enough (16MB). This badly named config option is actually
 488 # max order + 1
 489 config FORCE_MAX_ZONEORDER
 490         int
 491         depends on PPC64
 492         default "9" if PPC_64K_PAGES
 493         default "13"
 494
 495 config MATH_EMULATION
 496         bool "Math emulation"
 497         depends on 4xx || 8xx || E200 || E500
 498         ---help---
 499           Some PowerPC chips designed for embedded applications do not have
 500           a floating-point unit and therefore do not implement the
 501           floating-point instructions in the PowerPC instruction set.  If you
 502           say Y here, the kernel will include code to emulate a floating-point
 503           unit, which will allow programs that use floating-point
 504           instructions to run.
 505
 506 config IOMMU_VMERGE
 507         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 508         depends on EXPERIMENTAL && PPC64
 509         default n
 510         help
 511           Cause IO segments sent to a device for DMA to be merged virtually
 512           by the IOMMU when they happen to have been allocated contiguously.
 513           This doesn't add pressure to the IOMMU allocator. However, some
 514           drivers don't support getting large merged segments coming back
 515           from *_map_sg(). Say Y if you know the drivers you are using are
 516           properly handling this case.
 517
 518 config HOTPLUG_CPU
 519         bool "Support for enabling/disabling CPUs"
 520         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 521         ---help---
 522           Say Y here to be able to disable and re-enable individual
 523           CPUs at runtime on SMP machines.
 524
 525           Say N if you are unsure.
 526
 527 config KEXEC
 528         bool "kexec system call (EXPERIMENTAL)"
 529         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 530         help
 531           kexec is a system call that implements the ability to shutdown your
 532           current kernel, and to start another kernel.  It is like a reboot
 533           but it is indepedent of the system firmware.   And like a reboot
 534           you can start any kernel with it, not just Linux.
 535
 536           The name comes from the similiarity to the exec system call.
 537
 538           It is an ongoing process to be certain the hardware in a machine
 539           is properly shutdown, so do not be surprised if this code does not
 540           initially work for you.  It may help to enable device hotplugging
 541           support.  As of this writing the exact hardware interface is
 542           strongly in flux, so no good recommendation can be made.
 543
 544 config EMBEDDEDBOOT
 545         bool
 546         depends on 8xx || 8260
 547         default y
 548
 549 config PC_KEYBOARD
 550         bool "PC PS/2 style Keyboard"
 551         depends on 4xx || CPM2
 552
 553 config PPCBUG_NVRAM
 554         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 555         default y if PPC_PREP
 556
 557 config IRQ_ALL_CPUS
 558         bool "Distribute interrupts on all CPUs by default"
 559         depends on SMP && !MV64360
 560         help
 561           This option gives the kernel permission to distribute IRQs across
 562           multiple CPUs.  Saying N here will route all IRQs to the first
 563           CPU.  Generally saying Y is safe, although some problems have been
 564           reported with SMP Power Macintoshes with this option enabled.
 565
 566 source "arch/powerpc/platforms/pseries/Kconfig"
 567
 568 config NUMA
 569         bool "NUMA support"
 570         depends on PPC64
 571         default y if SMP && PPC_PSERIES
 572
 573 config ARCH_SELECT_MEMORY_MODEL
 574         def_bool y
 575         depends on PPC64
 576
 577 config ARCH_FLATMEM_ENABLE
 578        def_bool y
 579        depends on PPC64 && !NUMA
 580
 581 config ARCH_SPARSEMEM_ENABLE
 582         def_bool y
 583
 584 config ARCH_SPARSEMEM_DEFAULT
 585         def_bool y
 586         depends on SMP && PPC_PSERIES
 587
 588 source "mm/Kconfig"
 589
 590 config HAVE_ARCH_EARLY_PFN_TO_NID
 591         def_bool y
 592         depends on NEED_MULTIPLE_NODES
 593
 594 config ARCH_MEMORY_PROBE
 595         def_bool y
 596         depends on MEMORY_HOTPLUG
 597
 598 config PPC_64K_PAGES
 599         bool "64k page size"
 600         depends on PPC64
 601         help
 602           This option changes the kernel logical page size to 64k. On machines
 603           without processor support for 64k pages, the kernel will simulate
 604           them by loading each individual 4k page on demand transparently,
 605           while on hardware with such support, it will be used to map
 606           normal application pages.
 607
 608 config SCHED_SMT
 609         bool "SMT (Hyperthreading) scheduler support"
 610         depends on PPC64 && SMP
 611         default off
 612         help
 613           SMT scheduler support improves the CPU scheduler's decision making
 614           when dealing with POWER5 cpus at a cost of slightly increased
 615           overhead in some places. If unsure say N here.
 616
 617 config PROC_DEVICETREE
 618         bool "Support for device tree in /proc"
 619         depends on PROC_FS
 620         help
 621           This option adds a device-tree directory under /proc which contains
 622           an image of the device tree that the kernel copies from Open
 623           Firmware or other boot firmware. If unsure, say Y here.
 624
 625 source "arch/powerpc/platforms/prep/Kconfig"
 626
 627 config CMDLINE_BOOL
 628         bool "Default bootloader kernel arguments"
 629         depends on !PPC_ISERIES
 630
 631 config CMDLINE
 632         string "Initial kernel command string"
 633         depends on CMDLINE_BOOL
 634         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 635         help
 636           On some platforms, there is currently no way for the boot loader to
 637           pass arguments to the kernel. For these platforms, you can supply
 638           some command-line options at build time by entering them here.  In
 639           most cases you will need to specify the root device here.
 640
 641 if !44x || BROKEN
 642 source kernel/power/Kconfig
 643 endif
 644
 645 config SECCOMP
 646         bool "Enable seccomp to safely compute untrusted bytecode"
 647         depends on PROC_FS
 648         default y
 649         help
 650           This kernel feature is useful for number crunching applications
 651           that may need to compute untrusted bytecode during their
 652           execution. By using pipes or other transports made available to
 653           the process as file descriptors supporting the read/write
 654           syscalls, it's possible to isolate those applications in
 655           their own address space using seccomp. Once seccomp is
 656           enabled via /proc/<pid>/seccomp, it cannot be disabled
 657           and the task is only allowed to execute a few safe syscalls
 658           defined by each seccomp mode.
 659
 660           If unsure, say Y. Only embedded should say N here.
 661
 662 endmenu
 663
 664 config ISA_DMA_API
 665         bool
 666         default y
 667
 668 menu "Bus options"
 669
 670 config ISA
 671         bool "Support for ISA-bus hardware"
 672         depends on PPC_PREP || PPC_CHRP
 673         select PPC_I8259
 674         help
 675           Find out whether you have ISA slots on your motherboard.  ISA is the
 676           name of a bus system, i.e. the way the CPU talks to the other stuff
 677           inside your box.  If you have an Apple machine, say N here; if you
 678           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 679           you have an embedded board, consult your board documentation.
 680
 681 config GENERIC_ISA_DMA
 682         bool
 683         depends on PPC64 || POWER4 || 6xx && !CPM2
 684         default y
 685
 686 config PPC_I8259
 687         bool
 688         default y if 85xx
 689         default n
 690
 691 config PPC_INDIRECT_PCI
 692         bool
 693         depends on PCI
 694         default y if 40x || 44x || 85xx || 83xx
 695         default n
 696
 697 config EISA
 698         bool
 699
 700 config SBUS
 701         bool
 702
 703 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 704 config MCA
 705         bool
 706
 707 config PCI
 708         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 709         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 710         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 711         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 712         help
 713           Find out whether your system includes a PCI bus. PCI is the name of
 714           a bus system, i.e. the way the CPU talks to the other stuff inside
 715           your box.  If you say Y here, the kernel will include drivers and
 716           infrastructure code to support PCI bus devices.
 717
 718 config PCI_DOMAINS
 719         bool
 720         default PCI
 721
 722 config MPC83xx_PCI2
 723         bool "  Supprt for 2nd PCI host controller"
 724         depends on PCI && MPC834x
 725         default y if MPC834x_SYS
 726
 727 config PCI_QSPAN
 728         bool "QSpan PCI"
 729         depends on !4xx && !CPM2 && 8xx
 730         select PPC_I8259
 731         help
 732           Say Y here if you have a system based on a Motorola 8xx-series
 733           embedded processor with a QSPAN PCI interface, otherwise say N.
 734
 735 config PCI_8260
 736         bool
 737         depends on PCI && 8260
 738         select PPC_INDIRECT_PCI
 739         default y
 740
 741 config 8260_PCI9
 742         bool "  Enable workaround for MPC826x erratum PCI 9"
 743         depends on PCI_8260 && !ADS8272
 744         default y
 745
 746 choice
 747         prompt "  IDMA channel for PCI 9 workaround"
 748         depends on 8260_PCI9
 749
 750 config 8260_PCI9_IDMA1
 751         bool "IDMA1"
 752
 753 config 8260_PCI9_IDMA2
 754         bool "IDMA2"
 755
 756 config 8260_PCI9_IDMA3
 757         bool "IDMA3"
 758
 759 config 8260_PCI9_IDMA4
 760         bool "IDMA4"
 761
 762 endchoice
 763
 764 source "drivers/pci/Kconfig"
 765
 766 source "drivers/pcmcia/Kconfig"
 767
 768 source "drivers/pci/hotplug/Kconfig"
 769
 770 endmenu
 771
 772 menu "Advanced setup"
 773         depends on PPC32
 774
 775 config ADVANCED_OPTIONS
 776         bool "Prompt for advanced kernel configuration options"
 777         help
 778           This option will enable prompting for a variety of advanced kernel
 779           configuration options.  These options can cause the kernel to not
 780           work if they are set incorrectly, but can be used to optimize certain
 781           aspects of kernel memory management.
 782
 783           Unless you know what you are doing, say N here.
 784
 785 comment "Default settings for advanced configuration options are used"
 786         depends on !ADVANCED_OPTIONS
 787
 788 config HIGHMEM_START_BOOL
 789         bool "Set high memory pool address"
 790         depends on ADVANCED_OPTIONS && HIGHMEM
 791         help
 792           This option allows you to set the base address of the kernel virtual
 793           area used to map high memory pages.  This can be useful in
 794           optimizing the layout of kernel virtual memory.
 795
 796           Say N here unless you know what you are doing.
 797
 798 config HIGHMEM_START
 799         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 800         default "0xfe000000"
 801
 802 config LOWMEM_SIZE_BOOL
 803         bool "Set maximum low memory"
 804         depends on ADVANCED_OPTIONS
 805         help
 806           This option allows you to set the maximum amount of memory which
 807           will be used as "low memory", that is, memory which the kernel can
 808           access directly, without having to set up a kernel virtual mapping.
 809           This can be useful in optimizing the layout of kernel virtual
 810           memory.
 811
 812           Say N here unless you know what you are doing.
 813
 814 config LOWMEM_SIZE
 815         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 816         default "0x30000000"
 817
 818 config KERNEL_START_BOOL
 819         bool "Set custom kernel base address"
 820         depends on ADVANCED_OPTIONS
 821         help
 822           This option allows you to set the kernel virtual address at which
 823           the kernel will map low memory (the kernel image will be linked at
 824           this address).  This can be useful in optimizing the virtual memory
 825           layout of the system.
 826
 827           Say N here unless you know what you are doing.
 828
 829 config KERNEL_START
 830         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 831         default "0xc0000000"
 832
 833 config TASK_SIZE_BOOL
 834         bool "Set custom user task size"
 835         depends on ADVANCED_OPTIONS
 836         help
 837           This option allows you to set the amount of virtual address space
 838           allocated to user tasks.  This can be useful in optimizing the
 839           virtual memory layout of the system.
 840
 841           Say N here unless you know what you are doing.
 842
 843 config TASK_SIZE
 844         hex "Size of user task space" if TASK_SIZE_BOOL
 845         default "0x80000000"
 846
 847 config CONSISTENT_START_BOOL
 848         bool "Set custom consistent memory pool address"
 849         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 850         help
 851           This option allows you to set the base virtual address
 852           of the the consistent memory pool.  This pool of virtual
 853           memory is used to make consistent memory allocations.
 854
 855 config CONSISTENT_START
 856         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 857         default "0xff100000" if NOT_COHERENT_CACHE
 858
 859 config CONSISTENT_SIZE_BOOL
 860         bool "Set custom consistent memory pool size"
 861         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 862         help
 863           This option allows you to set the size of the the
 864           consistent memory pool.  This pool of virtual memory
 865           is used to make consistent memory allocations.
 866
 867 config CONSISTENT_SIZE
 868         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 869         default "0x00200000" if NOT_COHERENT_CACHE
 870
 871 config BOOT_LOAD_BOOL
 872         bool "Set the boot link/load address"
 873         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 874         help
 875           This option allows you to set the initial load address of the zImage
 876           or zImage.initrd file.  This can be useful if you are on a board
 877           which has a small amount of memory.
 878
 879           Say N here unless you know what you are doing.
 880
 881 config BOOT_LOAD
 882         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 883         default "0x00400000" if 40x || 8xx || 8260
 884         default "0x01000000" if 44x
 885         default "0x00800000"
 886
 887 config PIN_TLB
 888         bool "Pinned Kernel TLBs (860 ONLY)"
 889         depends on ADVANCED_OPTIONS && 8xx
 890 endmenu
 891
 892 if PPC64
 893 config KERNEL_START
 894         hex
 895         default "0xc000000000000000"
 896 endif
 897
 898 source "net/Kconfig"
 899
 900 source "drivers/Kconfig"
 901
 902 source "fs/Kconfig"
 903
 904 # XXX source "arch/ppc/8xx_io/Kconfig"
 905
 906 # XXX source "arch/ppc/8260_io/Kconfig"
 907
 908 source "arch/powerpc/platforms/iseries/Kconfig"
 909
 910 source "lib/Kconfig"
 911
 912 menu "Instrumentation Support"
 913         depends on EXPERIMENTAL
 914
 915 source "arch/powerpc/oprofile/Kconfig"
 916
 917 config KPROBES
 918         bool "Kprobes (EXPERIMENTAL)"
 919         depends on PPC64
 920         help
 921           Kprobes allows you to trap at almost any kernel address and
 922           execute a callback function.  register_kprobe() establishes
 923           a probepoint and specifies the callback.  Kprobes is useful
 924           for kernel debugging, non-intrusive instrumentation and testing.
 925           If in doubt, say "N".
 926 endmenu
 927
 928 source "arch/powerpc/Kconfig.debug"
 929
 930 source "security/Kconfig"
 931
 932 config KEYS_COMPAT
 933         bool
 934         depends on COMPAT && KEYS
 935         default y
 936
 937 source "crypto/Kconfig"