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_GPIO
  95         bool
  96         help
  97           Generic GPIO API support
  98
  99 config ARCH_NO_VIRT_TO_BUS
 100         def_bool PPC64
 101
 102 config PPC
 103         bool
 104         default y
 105         select OF
 106         select OF_EARLY_FLATTREE
 107         select HAVE_FTRACE_MCOUNT_RECORD
 108         select HAVE_DYNAMIC_FTRACE
 109         select HAVE_FUNCTION_TRACER
 110         select HAVE_FUNCTION_GRAPH_TRACER
 111         select ARCH_WANT_OPTIONAL_GPIOLIB
 112         select HAVE_IDE
 113         select HAVE_IOREMAP_PROT
 114         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 115         select HAVE_KPROBES
 116         select HAVE_ARCH_KGDB
 117         select HAVE_KRETPROBES
 118         select HAVE_ARCH_TRACEHOOK
 119         select HAVE_MEMBLOCK
 120         select HAVE_DMA_ATTRS
 121         select HAVE_DMA_API_DEBUG
 122         select USE_GENERIC_SMP_HELPERS if SMP
 123         select HAVE_OPROFILE
 124         select HAVE_SYSCALL_WRAPPERS if PPC64
 125         select GENERIC_ATOMIC64 if PPC32
 126         select HAVE_IRQ_WORK
 127         select HAVE_PERF_EVENTS
 128         select HAVE_REGS_AND_STACK_ACCESS_API
 129         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 130         select HAVE_GENERIC_HARDIRQS
 131         select HAVE_SPARSE_IRQ
 132         select IRQ_PER_CPU
 133         select GENERIC_IRQ_SHOW
 134         select GENERIC_IRQ_SHOW_LEVEL
 135         select HAVE_RCU_TABLE_FREE if SMP
 136         select HAVE_SYSCALL_TRACEPOINTS
 137         select HAVE_BPF_JIT if (PPC64 && NET)
 138
 139 config EARLY_PRINTK
 140         bool
 141         default y
 142
 143 config COMPAT
 144         bool
 145         default y if PPC64
 146         select COMPAT_BINFMT_ELF
 147
 148 config SYSVIPC_COMPAT
 149         bool
 150         depends on COMPAT && SYSVIPC
 151         default y
 152
 153 # All PPC32s use generic nvram driver through ppc_md
 154 config GENERIC_NVRAM
 155         bool
 156         default y if PPC32
 157
 158 config SCHED_OMIT_FRAME_POINTER
 159         bool
 160         default y
 161
 162 config ARCH_MAY_HAVE_PC_FDC
 163         bool
 164         default !PPC_PSERIES || PCI
 165
 166 config PPC_OF
 167         def_bool y
 168
 169 config PPC_UDBG_16550
 170         bool
 171         default n
 172
 173 config GENERIC_TBSYNC
 174         bool
 175         default y if PPC32 && SMP
 176         default n
 177
 178 config AUDIT_ARCH
 179         bool
 180         default y
 181
 182 config GENERIC_BUG
 183         bool
 184         default y
 185         depends on BUG
 186
 187 config SYS_SUPPORTS_APM_EMULATION
 188         default y if PMAC_APM_EMU
 189         bool
 190
 191 config EPAPR_BOOT
 192         bool
 193         help
 194           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 195         default n
 196
 197 config DEFAULT_UIMAGE
 198         bool
 199         help
 200           Used to allow a board to specify it wants a uImage built by default
 201         default n
 202
 203 config REDBOOT
 204         bool
 205
 206 config ARCH_HIBERNATION_POSSIBLE
 207         bool
 208         default y
 209
 210 config ARCH_SUSPEND_POSSIBLE
 211         def_bool y
 212         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 213                    (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
 214
 215 config PPC_DCR_NATIVE
 216         bool
 217         default n
 218
 219 config PPC_DCR_MMIO
 220         bool
 221         default n
 222
 223 config PPC_DCR
 224         bool
 225         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 226         default y
 227
 228 config PPC_OF_PLATFORM_PCI
 229         bool
 230         depends on PCI
 231         depends on PPC64 # not supported on 32 bits yet
 232         default n
 233
 234 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 235         def_bool y
 236
 237 config PPC_ADV_DEBUG_REGS
 238         bool
 239         depends on 40x || BOOKE
 240         default y
 241
 242 config PPC_ADV_DEBUG_IACS
 243         int
 244         depends on PPC_ADV_DEBUG_REGS
 245         default 4 if 44x
 246         default 2
 247
 248 config PPC_ADV_DEBUG_DACS
 249         int
 250         depends on PPC_ADV_DEBUG_REGS
 251         default 2
 252
 253 config PPC_ADV_DEBUG_DVCS
 254         int
 255         depends on PPC_ADV_DEBUG_REGS
 256         default 2 if 44x
 257         default 0
 258
 259 config PPC_ADV_DEBUG_DAC_RANGE
 260         bool
 261         depends on PPC_ADV_DEBUG_REGS && 44x
 262         default y
 263
 264 source "init/Kconfig"
 265
 266 source "kernel/Kconfig.freezer"
 267
 268 source "arch/powerpc/sysdev/Kconfig"
 269 source "arch/powerpc/platforms/Kconfig"
 270
 271 menu "Kernel options"
 272
 273 config HIGHMEM
 274         bool "High memory support"
 275         depends on PPC32
 276
 277 source kernel/time/Kconfig
 278 source kernel/Kconfig.hz
 279 source kernel/Kconfig.preempt
 280 source "fs/Kconfig.binfmt"
 281
 282 config HUGETLB_PAGE_SIZE_VARIABLE
 283         bool
 284         depends on HUGETLB_PAGE
 285         default y
 286
 287 config MATH_EMULATION
 288         bool "Math emulation"
 289         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 290         ---help---
 291           Some PowerPC chips designed for embedded applications do not have
 292           a floating-point unit and therefore do not implement the
 293           floating-point instructions in the PowerPC instruction set.  If you
 294           say Y here, the kernel will include code to emulate a floating-point
 295           unit, which will allow programs that use floating-point
 296           instructions to run.
 297
 298 config 8XX_MINIMAL_FPEMU
 299         bool "Minimal math emulation for 8xx"
 300         depends on 8xx && !MATH_EMULATION
 301         help
 302           Older arch/ppc kernels still emulated a few floating point
 303           instructions such as load and store, even when full math
 304           emulation is disabled.  Say "Y" here if you want to preserve
 305           this behavior.
 306
 307           It is recommended that you build a soft-float userspace instead.
 308
 309 config IOMMU_HELPER
 310         def_bool PPC64
 311
 312 config SWIOTLB
 313         bool "SWIOTLB support"
 314         default n
 315         select IOMMU_HELPER
 316         ---help---
 317           Support for IO bounce buffering for systems without an IOMMU.
 318           This allows us to DMA to the full physical address space on
 319           platforms where the size of a physical address is larger
 320           than the bus address.  Not all platforms support this.
 321
 322 config HOTPLUG_CPU
 323         bool "Support for enabling/disabling CPUs"
 324         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 325         ---help---
 326           Say Y here to be able to disable and re-enable individual
 327           CPUs at runtime on SMP machines.
 328
 329           Say N if you are unsure.
 330
 331 config ARCH_CPU_PROBE_RELEASE
 332         def_bool y
 333         depends on HOTPLUG_CPU
 334
 335 config ARCH_ENABLE_MEMORY_HOTPLUG
 336         def_bool y
 337
 338 config ARCH_HAS_WALK_MEMORY
 339         def_bool y
 340
 341 config ARCH_ENABLE_MEMORY_HOTREMOVE
 342         def_bool y
 343
 344 config KEXEC
 345         bool "kexec system call (EXPERIMENTAL)"
 346         depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
 347         help
 348           kexec is a system call that implements the ability to shutdown your
 349           current kernel, and to start another kernel.  It is like a reboot
 350           but it is independent of the system firmware.   And like a reboot
 351           you can start any kernel with it, not just Linux.
 352
 353           The name comes from the similarity to the exec system call.
 354
 355           It is an ongoing process to be certain the hardware in a machine
 356           is properly shutdown, so do not be surprised if this code does not
 357           initially work for you.  It may help to enable device hotplugging
 358           support.  As of this writing the exact hardware interface is
 359           strongly in flux, so no good recommendation can be made.
 360
 361 config CRASH_DUMP
 362         bool "Build a kdump crash kernel"
 363         depends on PPC64 || 6xx || FSL_BOOKE
 364         select RELOCATABLE if PPC64 || FSL_BOOKE
 365         help
 366           Build a kernel suitable for use as a kdump capture kernel.
 367           The same kernel binary can be used as production kernel and dump
 368           capture kernel.
 369
 370 config PHYP_DUMP
 371         bool "Hypervisor-assisted dump (EXPERIMENTAL)"
 372         depends on PPC_PSERIES && EXPERIMENTAL
 373         help
 374           Hypervisor-assisted dump is meant to be a kdump replacement
 375           offering robustness and speed not possible without system
 376           hypervisor assistance.
 377
 378           If unsure, say "N"
 379
 380 config PPCBUG_NVRAM
 381         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 382         default y if PPC_PREP
 383
 384 config IRQ_ALL_CPUS
 385         bool "Distribute interrupts on all CPUs by default"
 386         depends on SMP && !MV64360
 387         help
 388           This option gives the kernel permission to distribute IRQs across
 389           multiple CPUs.  Saying N here will route all IRQs to the first
 390           CPU.  Generally saying Y is safe, although some problems have been
 391           reported with SMP Power Macintoshes with this option enabled.
 392
 393 config NUMA
 394         bool "NUMA support"
 395         depends on PPC64
 396         default y if SMP && PPC_PSERIES
 397
 398 config NODES_SHIFT
 399         int
 400         default "8" if PPC64
 401         default "4"
 402         depends on NEED_MULTIPLE_NODES
 403
 404 config MAX_ACTIVE_REGIONS
 405         int
 406         default "256" if PPC64
 407         default "32"
 408
 409 config ARCH_SELECT_MEMORY_MODEL
 410         def_bool y
 411         depends on PPC64
 412
 413 config ARCH_FLATMEM_ENABLE
 414         def_bool y
 415         depends on (PPC64 && !NUMA) || PPC32
 416
 417 config ARCH_SPARSEMEM_ENABLE
 418         def_bool y
 419         depends on PPC64
 420         select SPARSEMEM_VMEMMAP_ENABLE
 421
 422 config ARCH_SPARSEMEM_DEFAULT
 423         def_bool y
 424         depends on (SMP && PPC_PSERIES) || PPC_PS3
 425
 426 config ARCH_POPULATES_NODE_MAP
 427         def_bool y
 428
 429 config SYS_SUPPORTS_HUGETLBFS
 430        def_bool y
 431        depends on PPC_BOOK3S_64
 432
 433 source "mm/Kconfig"
 434
 435 config ARCH_MEMORY_PROBE
 436         def_bool y
 437         depends on MEMORY_HOTPLUG
 438
 439 # Some NUMA nodes have memory ranges that span
 440 # other nodes.  Even though a pfn is valid and
 441 # between a node's start and end pfns, it may not
 442 # reside on that node.  See memmap_init_zone()
 443 # for details.
 444 config NODES_SPAN_OTHER_NODES
 445         def_bool y
 446         depends on NEED_MULTIPLE_NODES
 447
 448 config PPC_HAS_HASH_64K
 449         bool
 450         depends on PPC64
 451         default n
 452
 453 config STDBINUTILS
 454         bool "Using standard binutils settings"
 455         depends on 44x
 456         default y
 457         help
 458           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 459           Note, that kernel will be able to run only those applications,
 460           which had been compiled using binutils later than 2.17.50.0.3 with
 461           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 462           the older binutils, you can patch them with a trivial patch, which
 463           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 464
 465 choice
 466         prompt "Page size"
 467         default PPC_4K_PAGES
 468         help
 469           Select the kernel logical page size. Increasing the page size
 470           will reduce software overhead at each page boundary, allow
 471           hardware prefetch mechanisms to be more effective, and allow
 472           larger dma transfers increasing IO efficiency and reducing
 473           overhead. However the utilization of memory will increase.
 474           For example, each cached file will using a multiple of the
 475           page size to hold its contents and the difference between the
 476           end of file and the end of page is wasted.
 477
 478           Some dedicated systems, such as software raid serving with
 479           accelerated calculations, have shown significant increases.
 480
 481           If you configure a 64 bit kernel for 64k pages but the
 482           processor does not support them, then the kernel will simulate
 483           them with 4k pages, loading them on demand, but with the
 484           reduced software overhead and larger internal fragmentation.
 485           For the 32 bit kernel, a large page option will not be offered
 486           unless it is supported by the configured processor.
 487
 488           If unsure, choose 4K_PAGES.
 489
 490 config PPC_4K_PAGES
 491         bool "4k page size"
 492
 493 config PPC_16K_PAGES
 494         bool "16k page size" if 44x
 495
 496 config PPC_64K_PAGES
 497         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 498         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 499
 500 config PPC_256K_PAGES
 501         bool "256k page size" if 44x
 502         depends on !STDBINUTILS
 503         help
 504           Make the page size 256k.
 505
 506           As the ELF standard only requires alignment to support page
 507           sizes up to 64k, you will need to compile all of your user
 508           space applications with a non-standard binutils settings
 509           (see the STDBINUTILS description for details).
 510
 511           Say N unless you know what you are doing.
 512
 513 endchoice
 514
 515 config FORCE_MAX_ZONEORDER
 516         int "Maximum zone order"
 517         range 9 64 if PPC64 && PPC_64K_PAGES
 518         default "9" if PPC64 && PPC_64K_PAGES
 519         range 13 64 if PPC64 && !PPC_64K_PAGES
 520         default "13" if PPC64 && !PPC_64K_PAGES
 521         range 9 64 if PPC32 && PPC_16K_PAGES
 522         default "9" if PPC32 && PPC_16K_PAGES
 523         range 7 64 if PPC32 && PPC_64K_PAGES
 524         default "7" if PPC32 && PPC_64K_PAGES
 525         range 5 64 if PPC32 && PPC_256K_PAGES
 526         default "5" if PPC32 && PPC_256K_PAGES
 527         range 11 64
 528         default "11"
 529         help
 530           The kernel memory allocator divides physically contiguous memory
 531           blocks into "zones", where each zone is a power of two number of
 532           pages.  This option selects the largest power of two that the kernel
 533           keeps in the memory allocator.  If you need to allocate very large
 534           blocks of physically contiguous memory, then you may need to
 535           increase this value.
 536
 537           This config option is actually maximum order plus one. For example,
 538           a value of 11 means that the largest free memory block is 2^10 pages.
 539
 540           The page size is not necessarily 4KB.  For example, on 64-bit
 541           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 542           this in mind when choosing a value for this option.
 543
 544 config PPC_SUBPAGE_PROT
 545         bool "Support setting protections for 4k subpages"
 546         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 547         help
 548           This option adds support for a system call to allow user programs
 549           to set access permissions (read/write, readonly, or no access)
 550           on the 4k subpages of each 64k page.
 551
 552 config SCHED_SMT
 553         bool "SMT (Hyperthreading) scheduler support"
 554         depends on PPC64 && SMP
 555         help
 556           SMT scheduler support improves the CPU scheduler's decision making
 557           when dealing with POWER5 cpus at a cost of slightly increased
 558           overhead in some places. If unsure say N here.
 559
 560 config CMDLINE_BOOL
 561         bool "Default bootloader kernel arguments"
 562
 563 config CMDLINE
 564         string "Initial kernel command string"
 565         depends on CMDLINE_BOOL
 566         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 567         help
 568           On some platforms, there is currently no way for the boot loader to
 569           pass arguments to the kernel. For these platforms, you can supply
 570           some command-line options at build time by entering them here.  In
 571           most cases you will need to specify the root device here.
 572
 573 config EXTRA_TARGETS
 574         string "Additional default image types"
 575         help
 576           List additional targets to be built by the bootwrapper here (separated
 577           by spaces).  This is useful for targets that depend of device tree
 578           files in the .dts directory.
 579
 580           Targets in this list will be build as part of the default build
 581           target, or when the user does a 'make zImage' or a
 582           'make zImage.initrd'.
 583
 584           If unsure, leave blank
 585
 586 config ARCH_WANTS_FREEZER_CONTROL
 587         def_bool y
 588         depends on ADB_PMU
 589
 590 source kernel/power/Kconfig
 591
 592 config SECCOMP
 593         bool "Enable seccomp to safely compute untrusted bytecode"
 594         depends on PROC_FS
 595         default y
 596         help
 597           This kernel feature is useful for number crunching applications
 598           that may need to compute untrusted bytecode during their
 599           execution. By using pipes or other transports made available to
 600           the process as file descriptors supporting the read/write
 601           syscalls, it's possible to isolate those applications in
 602           their own address space using seccomp. Once seccomp is
 603           enabled via /proc/<pid>/seccomp, it cannot be disabled
 604           and the task is only allowed to execute a few safe syscalls
 605           defined by each seccomp mode.
 606
 607           If unsure, say Y. Only embedded should say N here.
 608
 609 endmenu
 610
 611 config ISA_DMA_API
 612         bool
 613         default !PPC_ISERIES || PCI
 614
 615 menu "Bus options"
 616
 617 config ISA
 618         bool "Support for ISA-bus hardware"
 619         depends on PPC_PREP || PPC_CHRP
 620         select PPC_I8259
 621         help
 622           Find out whether you have ISA slots on your motherboard.  ISA is the
 623           name of a bus system, i.e. the way the CPU talks to the other stuff
 624           inside your box.  If you have an Apple machine, say N here; if you
 625           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 626           you have an embedded board, consult your board documentation.
 627
 628 config ZONE_DMA
 629         bool
 630         default y
 631
 632 config NEED_DMA_MAP_STATE
 633         def_bool (PPC64 || NOT_COHERENT_CACHE)
 634
 635 config NEED_SG_DMA_LENGTH
 636         def_bool y
 637
 638 config GENERIC_ISA_DMA
 639         bool
 640         depends on ISA_DMA_API
 641         default y
 642
 643 config PPC_INDIRECT_PCI
 644         bool
 645         depends on PCI
 646         default y if 40x || 44x
 647         default n
 648
 649 config EISA
 650         bool
 651
 652 config SBUS
 653         bool
 654
 655 config FSL_SOC
 656         bool
 657
 658 config FSL_PCI
 659         bool
 660         select PPC_INDIRECT_PCI
 661         select PCI_QUIRKS
 662
 663 config FSL_PMC
 664         bool
 665         default y
 666         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 667         help
 668           Freescale MPC85xx/MPC86xx power management controller support
 669           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 670
 671 config PPC4xx_CPM
 672         bool
 673         default y
 674         depends on SUSPEND && (44x || 40x)
 675         help
 676           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 677           It also enables support for two different idle states (idle-wait
 678           and idle-doze).
 679
 680 config 4xx_SOC
 681         bool
 682
 683 config FSL_LBC
 684         bool "Freescale Local Bus support"
 685         depends on FSL_SOC
 686         help
 687           Enables reporting of errors from the Freescale local bus
 688           controller.  Also contains some common code used by
 689           drivers for specific local bus peripherals.
 690
 691 config FSL_GTM
 692         bool
 693         depends on PPC_83xx || QUICC_ENGINE || CPM2
 694         help
 695           Freescale General-purpose Timers support
 696
 697 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 698 config MCA
 699         bool
 700
 701 # Platforms that what PCI turned unconditionally just do select PCI
 702 # in their config node.  Platforms that want to choose at config
 703 # time should select PPC_PCI_CHOICE
 704 config PPC_PCI_CHOICE
 705         bool
 706
 707 config PCI
 708         bool "PCI support" if PPC_PCI_CHOICE
 709         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 710                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 711         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 712         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 713         select ARCH_SUPPORTS_MSI
 714         help
 715           Find out whether your system includes a PCI bus. PCI is the name of
 716           a bus system, i.e. the way the CPU talks to the other stuff inside
 717           your box.  If you say Y here, the kernel will include drivers and
 718           infrastructure code to support PCI bus devices.
 719
 720 config PCI_DOMAINS
 721         def_bool PCI
 722
 723 config PCI_SYSCALL
 724         def_bool PCI
 725
 726 config PCI_QSPAN
 727         bool "QSpan PCI"
 728         depends on !4xx && !CPM2 && 8xx
 729         select PPC_I8259
 730         help
 731           Say Y here if you have a system based on a Motorola 8xx-series
 732           embedded processor with a QSPAN PCI interface, otherwise say N.
 733
 734 config PCI_8260
 735         bool
 736         depends on PCI && 8260
 737         select PPC_INDIRECT_PCI
 738         default y
 739
 740 config 8260_PCI9
 741         bool "Enable workaround for MPC826x erratum PCI 9"
 742         depends on PCI_8260 && !8272
 743         default y
 744
 745 choice
 746         prompt "IDMA channel for PCI 9 workaround"
 747         depends on 8260_PCI9
 748
 749 config 8260_PCI9_IDMA1
 750         bool "IDMA1"
 751
 752 config 8260_PCI9_IDMA2
 753         bool "IDMA2"
 754
 755 config 8260_PCI9_IDMA3
 756         bool "IDMA3"
 757
 758 config 8260_PCI9_IDMA4
 759         bool "IDMA4"
 760
 761 endchoice
 762
 763 source "drivers/pci/pcie/Kconfig"
 764
 765 source "drivers/pci/Kconfig"
 766
 767 source "drivers/pcmcia/Kconfig"
 768
 769 source "drivers/pci/hotplug/Kconfig"
 770
 771 config HAS_RAPIDIO
 772         bool
 773         default n
 774
 775 config RAPIDIO
 776         bool "RapidIO support"
 777         depends on HAS_RAPIDIO || PCI
 778         help
 779           If you say Y here, the kernel will include drivers and
 780           infrastructure code to support RapidIO interconnect devices.
 781
 782 config FSL_RIO
 783         bool "Freescale Embedded SRIO Controller support"
 784         depends on RAPIDIO && HAS_RAPIDIO
 785         default "n"
 786         ---help---
 787           Include support for RapidIO controller on Freescale embedded
 788           processors (MPC8548, MPC8641, etc).
 789
 790 source "drivers/rapidio/Kconfig"
 791
 792 endmenu
 793
 794 menu "Advanced setup"
 795         depends on PPC32
 796
 797 config ADVANCED_OPTIONS
 798         bool "Prompt for advanced kernel configuration options"
 799         help
 800           This option will enable prompting for a variety of advanced kernel
 801           configuration options.  These options can cause the kernel to not
 802           work if they are set incorrectly, but can be used to optimize certain
 803           aspects of kernel memory management.
 804
 805           Unless you know what you are doing, say N here.
 806
 807 comment "Default settings for advanced configuration options are used"
 808         depends on !ADVANCED_OPTIONS
 809
 810 config LOWMEM_SIZE_BOOL
 811         bool "Set maximum low memory"
 812         depends on ADVANCED_OPTIONS
 813         help
 814           This option allows you to set the maximum amount of memory which
 815           will be used as "low memory", that is, memory which the kernel can
 816           access directly, without having to set up a kernel virtual mapping.
 817           This can be useful in optimizing the layout of kernel virtual
 818           memory.
 819
 820           Say N here unless you know what you are doing.
 821
 822 config LOWMEM_SIZE
 823         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 824         default "0x30000000"
 825
 826 config LOWMEM_CAM_NUM_BOOL
 827         bool "Set number of CAMs to use to map low memory"
 828         depends on ADVANCED_OPTIONS && FSL_BOOKE
 829         help
 830           This option allows you to set the maximum number of CAM slots that
 831           will be used to map low memory.  There are a limited number of slots
 832           available and even more limited number that will fit in the L1 MMU.
 833           However, using more entries will allow mapping more low memory.  This
 834           can be useful in optimizing the layout of kernel virtual memory.
 835
 836           Say N here unless you know what you are doing.
 837
 838 config LOWMEM_CAM_NUM
 839         depends on FSL_BOOKE
 840         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 841         default 3
 842
 843 config RELOCATABLE
 844         bool "Build a relocatable kernel (EXPERIMENTAL)"
 845         depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 846         help
 847           This builds a kernel image that is capable of running at the
 848           location the kernel is loaded at (some alignment restrictions may
 849           exist).
 850
 851           One use is for the kexec on panic case where the recovery kernel
 852           must live at a different physical address than the primary
 853           kernel.
 854
 855           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 856           it has been loaded at and the compile time physical addresses
 857           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 858           setting can still be useful to bootwrappers that need to know the
 859           load location of the kernel (eg. u-boot/mkimage).
 860
 861 config PAGE_OFFSET_BOOL
 862         bool "Set custom page offset address"
 863         depends on ADVANCED_OPTIONS
 864         help
 865           This option allows you to set the kernel virtual address at which
 866           the kernel will map low memory.  This can be useful in optimizing
 867           the virtual memory layout of the system.
 868
 869           Say N here unless you know what you are doing.
 870
 871 config PAGE_OFFSET
 872         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 873         default "0xc0000000"
 874
 875 config KERNEL_START_BOOL
 876         bool "Set custom kernel base address"
 877         depends on ADVANCED_OPTIONS
 878         help
 879           This option allows you to set the kernel virtual address at which
 880           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 881           however there are times (like kdump) that one might not want them
 882           to be the same.
 883
 884           Say N here unless you know what you are doing.
 885
 886 config KERNEL_START
 887         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 888         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 889         default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
 890         default "0xc0000000"
 891
 892 config PHYSICAL_START_BOOL
 893         bool "Set physical address where the kernel is loaded"
 894         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 895         help
 896           This gives the physical address where the kernel is loaded.
 897
 898           Say N here unless you know what you are doing.
 899
 900 config PHYSICAL_START
 901         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 902         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
 903         default "0x00000000"
 904
 905 config PHYSICAL_ALIGN
 906         hex
 907         default "0x04000000" if FSL_BOOKE
 908         help
 909           This value puts the alignment restrictions on physical address
 910           where kernel is loaded and run from. Kernel is compiled for an
 911           address which meets above alignment restriction.
 912
 913 config TASK_SIZE_BOOL
 914         bool "Set custom user task size"
 915         depends on ADVANCED_OPTIONS
 916         help
 917           This option allows you to set the amount of virtual address space
 918           allocated to user tasks.  This can be useful in optimizing the
 919           virtual memory layout of the system.
 920
 921           Say N here unless you know what you are doing.
 922
 923 config TASK_SIZE
 924         hex "Size of user task space" if TASK_SIZE_BOOL
 925         default "0x80000000" if PPC_PREP || PPC_8xx
 926         default "0xc0000000"
 927
 928 config CONSISTENT_SIZE_BOOL
 929         bool "Set custom consistent memory pool size"
 930         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 931         help
 932           This option allows you to set the size of the
 933           consistent memory pool.  This pool of virtual memory
 934           is used to make consistent memory allocations.
 935
 936 config CONSISTENT_SIZE
 937         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 938         default "0x00200000" if NOT_COHERENT_CACHE
 939
 940 config PIN_TLB
 941         bool "Pinned Kernel TLBs (860 ONLY)"
 942         depends on ADVANCED_OPTIONS && 8xx
 943 endmenu
 944
 945 if PPC64
 946 config RELOCATABLE
 947         bool "Build a relocatable kernel"
 948         help
 949           This builds a kernel image that is capable of running anywhere
 950           in the RMA (real memory area) at any 16k-aligned base address.
 951           The kernel is linked as a position-independent executable (PIE)
 952           and contains dynamic relocations which are processed early
 953           in the bootup process.
 954
 955           One use is for the kexec on panic case where the recovery kernel
 956           must live at a different physical address than the primary
 957           kernel.
 958
 959 config PAGE_OFFSET
 960         hex
 961         default "0xc000000000000000"
 962 config KERNEL_START
 963         hex
 964         default "0xc000000000000000"
 965 config PHYSICAL_START
 966         hex
 967         default "0x00000000"
 968 endif
 969
 970 source "net/Kconfig"
 971
 972 source "drivers/Kconfig"
 973
 974 source "fs/Kconfig"
 975
 976 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 977
 978 source "lib/Kconfig"
 979
 980 source "arch/powerpc/Kconfig.debug"
 981
 982 source "security/Kconfig"
 983
 984 config KEYS_COMPAT
 985         bool
 986         depends on COMPAT && KEYS
 987         default y
 988
 989 source "crypto/Kconfig"
 990
 991 config PPC_CLOCK
 992         bool
 993         default n
 994         select HAVE_CLK
 995
 996 config PPC_LIB_RHEAP
 997         bool
 998
 999 source "arch/powerpc/kvm/Kconfig"