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 HAVE_SETUP_PER_CPU_AREA
  31         def_bool PPC64
  32
  33 config NEED_PER_CPU_EMBED_FIRST_CHUNK
  34         def_bool PPC64
  35
  36 config NR_IRQS
  37         int "Number of virtual interrupt numbers"
  38         range 32 32768
  39         default "512"
  40         help
  41           This defines the number of virtual interrupt numbers the kernel
  42           can manage. Virtual interrupt numbers are what you see in
  43           /proc/interrupts. If you configure your system to have too few,
  44           drivers will fail to load or worse - handle with care.
  45
  46 config STACKTRACE_SUPPORT
  47         bool
  48         default y
  49
  50 config HAVE_LATENCYTOP_SUPPORT
  51         def_bool y
  52
  53 config TRACE_IRQFLAGS_SUPPORT
  54         bool
  55         default y
  56
  57 config LOCKDEP_SUPPORT
  58         bool
  59         default y
  60
  61 config RWSEM_GENERIC_SPINLOCK
  62         bool
  63
  64 config RWSEM_XCHGADD_ALGORITHM
  65         bool
  66         default y
  67
  68 config GENERIC_LOCKBREAK
  69         bool
  70         default y
  71         depends on SMP && PREEMPT
  72
  73 config ARCH_HAS_ILOG2_U32
  74         bool
  75         default y
  76
  77 config ARCH_HAS_ILOG2_U64
  78         bool
  79         default y if 64BIT
  80
  81 config GENERIC_HWEIGHT
  82         bool
  83         default y
  84
  85 config GENERIC_GPIO
  86         bool
  87         help
  88           Generic GPIO API support
  89
  90 config PPC
  91         bool
  92         default y
  93         select BINFMT_ELF
  94         select OF
  95         select OF_EARLY_FLATTREE
  96         select HAVE_FTRACE_MCOUNT_RECORD
  97         select HAVE_DYNAMIC_FTRACE
  98         select HAVE_FUNCTION_TRACER
  99         select HAVE_FUNCTION_GRAPH_TRACER
 100         select SYSCTL_EXCEPTION_TRACE
 101         select ARCH_WANT_OPTIONAL_GPIOLIB
 102         select VIRT_TO_BUS if !PPC64
 103         select HAVE_IDE
 104         select HAVE_IOREMAP_PROT
 105         select HAVE_EFFICIENT_UNALIGNED_ACCESS
 106         select HAVE_KPROBES
 107         select HAVE_ARCH_KGDB
 108         select HAVE_KRETPROBES
 109         select HAVE_ARCH_TRACEHOOK
 110         select HAVE_MEMBLOCK
 111         select HAVE_MEMBLOCK_NODE_MAP
 112         select HAVE_DMA_ATTRS
 113         select HAVE_DMA_API_DEBUG
 114         select USE_GENERIC_SMP_HELPERS if SMP
 115         select HAVE_OPROFILE
 116         select HAVE_DEBUG_KMEMLEAK
 117         select HAVE_SYSCALL_WRAPPERS if PPC64
 118         select GENERIC_ATOMIC64 if PPC32
 119         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 120         select HAVE_PERF_EVENTS
 121         select HAVE_REGS_AND_STACK_ACCESS_API
 122         select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 123         select HAVE_GENERIC_HARDIRQS
 124         select ARCH_WANT_IPC_PARSE_VERSION
 125         select SPARSE_IRQ
 126         select IRQ_DOMAIN
 127         select GENERIC_IRQ_SHOW
 128         select GENERIC_IRQ_SHOW_LEVEL
 129         select IRQ_FORCED_THREADING
 130         select HAVE_RCU_TABLE_FREE if SMP
 131         select HAVE_SYSCALL_TRACEPOINTS
 132         select HAVE_BPF_JIT if PPC64
 133         select HAVE_ARCH_JUMP_LABEL
 134         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 135         select GENERIC_SMP_IDLE_THREAD
 136         select GENERIC_CMOS_UPDATE
 137         select GENERIC_TIME_VSYSCALL_OLD
 138         select GENERIC_CLOCKEVENTS
 139         select GENERIC_STRNCPY_FROM_USER
 140         select GENERIC_STRNLEN_USER
 141         select HAVE_MOD_ARCH_SPECIFIC
 142         select MODULES_USE_ELF_RELA
 143         select CLONE_BACKWARDS
 144         select ARCH_USE_BUILTIN_BSWAP
 145         select OLD_SIGSUSPEND
 146         select OLD_SIGACTION if PPC32
 147
 148 config EARLY_PRINTK
 149         bool
 150         default y
 151
 152 config COMPAT
 153         bool
 154         default y if PPC64
 155         select COMPAT_BINFMT_ELF
 156         select ARCH_WANT_OLD_COMPAT_IPC
 157         select COMPAT_OLD_SIGACTION
 158
 159 config SYSVIPC_COMPAT
 160         bool
 161         depends on COMPAT && SYSVIPC
 162         default y
 163
 164 # All PPC32s use generic nvram driver through ppc_md
 165 config GENERIC_NVRAM
 166         bool
 167         default y if PPC32
 168
 169 config SCHED_OMIT_FRAME_POINTER
 170         bool
 171         default y
 172
 173 config ARCH_MAY_HAVE_PC_FDC
 174         bool
 175         default !PPC_PSERIES || PCI
 176
 177 config PPC_OF
 178         def_bool y
 179
 180 config PPC_UDBG_16550
 181         bool
 182         default n
 183
 184 config GENERIC_TBSYNC
 185         bool
 186         default y if PPC32 && SMP
 187         default n
 188
 189 config AUDIT_ARCH
 190         bool
 191         default y
 192
 193 config GENERIC_BUG
 194         bool
 195         default y
 196         depends on BUG
 197
 198 config SYS_SUPPORTS_APM_EMULATION
 199         default y if PMAC_APM_EMU
 200         bool
 201
 202 config EPAPR_BOOT
 203         bool
 204         help
 205           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 206         default n
 207
 208 config DEFAULT_UIMAGE
 209         bool
 210         help
 211           Used to allow a board to specify it wants a uImage built by default
 212         default n
 213
 214 config REDBOOT
 215         bool
 216
 217 config ARCH_HIBERNATION_POSSIBLE
 218         bool
 219         default y
 220
 221 config ARCH_SUSPEND_POSSIBLE
 222         def_bool y
 223         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 224                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
 225                    || 44x || 40x
 226
 227 config PPC_DCR_NATIVE
 228         bool
 229         default n
 230
 231 config PPC_DCR_MMIO
 232         bool
 233         default n
 234
 235 config PPC_DCR
 236         bool
 237         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 238         default y
 239
 240 config PPC_OF_PLATFORM_PCI
 241         bool
 242         depends on PCI
 243         depends on PPC64 # not supported on 32 bits yet
 244         default n
 245
 246 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 247         def_bool y
 248
 249 config ARCH_SUPPORTS_UPROBES
 250         def_bool y
 251
 252 config PPC_ADV_DEBUG_REGS
 253         bool
 254         depends on 40x || BOOKE
 255         default y
 256
 257 config PPC_ADV_DEBUG_IACS
 258         int
 259         depends on PPC_ADV_DEBUG_REGS
 260         default 4 if 44x
 261         default 2
 262
 263 config PPC_ADV_DEBUG_DACS
 264         int
 265         depends on PPC_ADV_DEBUG_REGS
 266         default 2
 267
 268 config PPC_ADV_DEBUG_DVCS
 269         int
 270         depends on PPC_ADV_DEBUG_REGS
 271         default 2 if 44x
 272         default 0
 273
 274 config PPC_ADV_DEBUG_DAC_RANGE
 275         bool
 276         depends on PPC_ADV_DEBUG_REGS && 44x
 277         default y
 278
 279 config PPC_EMULATE_SSTEP
 280         bool
 281         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
 282
 283 source "init/Kconfig"
 284
 285 source "kernel/Kconfig.freezer"
 286
 287 source "arch/powerpc/sysdev/Kconfig"
 288 source "arch/powerpc/platforms/Kconfig"
 289
 290 menu "Kernel options"
 291
 292 config HIGHMEM
 293         bool "High memory support"
 294         depends on PPC32
 295
 296 source kernel/Kconfig.hz
 297 source kernel/Kconfig.preempt
 298 source "fs/Kconfig.binfmt"
 299
 300 config HUGETLB_PAGE_SIZE_VARIABLE
 301         bool
 302         depends on HUGETLB_PAGE
 303         default y
 304
 305 config MATH_EMULATION
 306         bool "Math emulation"
 307         depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
 308         ---help---
 309           Some PowerPC chips designed for embedded applications do not have
 310           a floating-point unit and therefore do not implement the
 311           floating-point instructions in the PowerPC instruction set.  If you
 312           say Y here, the kernel will include code to emulate a floating-point
 313           unit, which will allow programs that use floating-point
 314           instructions to run.
 315
 316 config PPC_TRANSACTIONAL_MEM
 317        bool "Transactional Memory support for POWERPC"
 318        depends on PPC_BOOK3S_64
 319        depends on SMP
 320        default n
 321        ---help---
 322          Support user-mode Transactional Memory on POWERPC.
 323
 324 config 8XX_MINIMAL_FPEMU
 325         bool "Minimal math emulation for 8xx"
 326         depends on 8xx && !MATH_EMULATION
 327         help
 328           Older arch/ppc kernels still emulated a few floating point
 329           instructions such as load and store, even when full math
 330           emulation is disabled.  Say "Y" here if you want to preserve
 331           this behavior.
 332
 333           It is recommended that you build a soft-float userspace instead.
 334
 335 config IOMMU_HELPER
 336         def_bool PPC64
 337
 338 config SWIOTLB
 339         bool "SWIOTLB support"
 340         default n
 341         select IOMMU_HELPER
 342         ---help---
 343           Support for IO bounce buffering for systems without an IOMMU.
 344           This allows us to DMA to the full physical address space on
 345           platforms where the size of a physical address is larger
 346           than the bus address.  Not all platforms support this.
 347
 348 config HOTPLUG_CPU
 349         bool "Support for enabling/disabling CPUs"
 350         depends on SMP && HOTPLUG && (PPC_PSERIES || \
 351         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
 352         ---help---
 353           Say Y here to be able to disable and re-enable individual
 354           CPUs at runtime on SMP machines.
 355
 356           Say N if you are unsure.
 357
 358 config ARCH_CPU_PROBE_RELEASE
 359         def_bool y
 360         depends on HOTPLUG_CPU
 361
 362 config ARCH_ENABLE_MEMORY_HOTPLUG
 363         def_bool y
 364
 365 config ARCH_HAS_WALK_MEMORY
 366         def_bool y
 367
 368 config ARCH_ENABLE_MEMORY_HOTREMOVE
 369         def_bool y
 370
 371 config KEXEC
 372         bool "kexec system call"
 373         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
 374         help
 375           kexec is a system call that implements the ability to shutdown your
 376           current kernel, and to start another kernel.  It is like a reboot
 377           but it is independent of the system firmware.   And like a reboot
 378           you can start any kernel with it, not just Linux.
 379
 380           The name comes from the similarity to the exec system call.
 381
 382           It is an ongoing process to be certain the hardware in a machine
 383           is properly shutdown, so do not be surprised if this code does not
 384           initially work for you.  It may help to enable device hotplugging
 385           support.  As of this writing the exact hardware interface is
 386           strongly in flux, so no good recommendation can be made.
 387
 388 config CRASH_DUMP
 389         bool "Build a kdump crash kernel"
 390         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
 391         select RELOCATABLE if PPC64 || 44x
 392         select DYNAMIC_MEMSTART if FSL_BOOKE
 393         help
 394           Build a kernel suitable for use as a kdump capture kernel.
 395           The same kernel binary can be used as production kernel and dump
 396           capture kernel.
 397
 398 config FA_DUMP
 399         bool "Firmware-assisted dump"
 400         depends on PPC64 && PPC_RTAS && CRASH_DUMP
 401         help
 402           A robust mechanism to get reliable kernel crash dump with
 403           assistance from firmware. This approach does not use kexec,
 404           instead firmware assists in booting the kdump kernel
 405           while preserving memory contents. Firmware-assisted dump
 406           is meant to be a kdump replacement offering robustness and
 407           speed not possible without system firmware assistance.
 408
 409           If unsure, say "N"
 410
 411 config IRQ_ALL_CPUS
 412         bool "Distribute interrupts on all CPUs by default"
 413         depends on SMP && !MV64360
 414         help
 415           This option gives the kernel permission to distribute IRQs across
 416           multiple CPUs.  Saying N here will route all IRQs to the first
 417           CPU.  Generally saying Y is safe, although some problems have been
 418           reported with SMP Power Macintoshes with this option enabled.
 419
 420 config NUMA
 421         bool "NUMA support"
 422         depends on PPC64
 423         default y if SMP && PPC_PSERIES
 424
 425 config NODES_SHIFT
 426         int
 427         default "8" if PPC64
 428         default "4"
 429         depends on NEED_MULTIPLE_NODES
 430
 431 config MAX_ACTIVE_REGIONS
 432         int
 433         default "256" if PPC64
 434         default "32"
 435
 436 config ARCH_SELECT_MEMORY_MODEL
 437         def_bool y
 438         depends on PPC64
 439
 440 config ARCH_FLATMEM_ENABLE
 441         def_bool y
 442         depends on (PPC64 && !NUMA) || PPC32
 443
 444 config ARCH_SPARSEMEM_ENABLE
 445         def_bool y
 446         depends on PPC64
 447         select SPARSEMEM_VMEMMAP_ENABLE
 448
 449 config ARCH_SPARSEMEM_DEFAULT
 450         def_bool y
 451         depends on (SMP && PPC_PSERIES) || PPC_PS3
 452
 453 config SYS_SUPPORTS_HUGETLBFS
 454         bool
 455
 456 source "mm/Kconfig"
 457
 458 config ARCH_MEMORY_PROBE
 459         def_bool y
 460         depends on MEMORY_HOTPLUG
 461
 462 # Some NUMA nodes have memory ranges that span
 463 # other nodes.  Even though a pfn is valid and
 464 # between a node's start and end pfns, it may not
 465 # reside on that node.  See memmap_init_zone()
 466 # for details.
 467 config NODES_SPAN_OTHER_NODES
 468         def_bool y
 469         depends on NEED_MULTIPLE_NODES
 470
 471 config PPC_HAS_HASH_64K
 472         bool
 473         depends on PPC64
 474         default n
 475
 476 config STDBINUTILS
 477         bool "Using standard binutils settings"
 478         depends on 44x
 479         default y
 480         help
 481           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 482           Note, that kernel will be able to run only those applications,
 483           which had been compiled using binutils later than 2.17.50.0.3 with
 484           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 485           the older binutils, you can patch them with a trivial patch, which
 486           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 487
 488 choice
 489         prompt "Page size"
 490         default PPC_4K_PAGES
 491         help
 492           Select the kernel logical page size. Increasing the page size
 493           will reduce software overhead at each page boundary, allow
 494           hardware prefetch mechanisms to be more effective, and allow
 495           larger dma transfers increasing IO efficiency and reducing
 496           overhead. However the utilization of memory will increase.
 497           For example, each cached file will using a multiple of the
 498           page size to hold its contents and the difference between the
 499           end of file and the end of page is wasted.
 500
 501           Some dedicated systems, such as software raid serving with
 502           accelerated calculations, have shown significant increases.
 503
 504           If you configure a 64 bit kernel for 64k pages but the
 505           processor does not support them, then the kernel will simulate
 506           them with 4k pages, loading them on demand, but with the
 507           reduced software overhead and larger internal fragmentation.
 508           For the 32 bit kernel, a large page option will not be offered
 509           unless it is supported by the configured processor.
 510
 511           If unsure, choose 4K_PAGES.
 512
 513 config PPC_4K_PAGES
 514         bool "4k page size"
 515
 516 config PPC_16K_PAGES
 517         bool "16k page size" if 44x
 518
 519 config PPC_64K_PAGES
 520         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 521         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 522
 523 config PPC_256K_PAGES
 524         bool "256k page size" if 44x
 525         depends on !STDBINUTILS
 526         help
 527           Make the page size 256k.
 528
 529           As the ELF standard only requires alignment to support page
 530           sizes up to 64k, you will need to compile all of your user
 531           space applications with a non-standard binutils settings
 532           (see the STDBINUTILS description for details).
 533
 534           Say N unless you know what you are doing.
 535
 536 endchoice
 537
 538 config FORCE_MAX_ZONEORDER
 539         int "Maximum zone order"
 540         range 9 64 if PPC64 && PPC_64K_PAGES
 541         default "9" if PPC64 && PPC_64K_PAGES
 542         range 13 64 if PPC64 && !PPC_64K_PAGES
 543         default "13" if PPC64 && !PPC_64K_PAGES
 544         range 9 64 if PPC32 && PPC_16K_PAGES
 545         default "9" if PPC32 && PPC_16K_PAGES
 546         range 7 64 if PPC32 && PPC_64K_PAGES
 547         default "7" if PPC32 && PPC_64K_PAGES
 548         range 5 64 if PPC32 && PPC_256K_PAGES
 549         default "5" if PPC32 && PPC_256K_PAGES
 550         range 11 64
 551         default "11"
 552         help
 553           The kernel memory allocator divides physically contiguous memory
 554           blocks into "zones", where each zone is a power of two number of
 555           pages.  This option selects the largest power of two that the kernel
 556           keeps in the memory allocator.  If you need to allocate very large
 557           blocks of physically contiguous memory, then you may need to
 558           increase this value.
 559
 560           This config option is actually maximum order plus one. For example,
 561           a value of 11 means that the largest free memory block is 2^10 pages.
 562
 563           The page size is not necessarily 4KB.  For example, on 64-bit
 564           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 565           this in mind when choosing a value for this option.
 566
 567 config PPC_SUBPAGE_PROT
 568         bool "Support setting protections for 4k subpages"
 569         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 570         help
 571           This option adds support for a system call to allow user programs
 572           to set access permissions (read/write, readonly, or no access)
 573           on the 4k subpages of each 64k page.
 574
 575 config SCHED_SMT
 576         bool "SMT (Hyperthreading) scheduler support"
 577         depends on PPC64 && SMP
 578         help
 579           SMT scheduler support improves the CPU scheduler's decision making
 580           when dealing with POWER5 cpus at a cost of slightly increased
 581           overhead in some places. If unsure say N here.
 582
 583 config PPC_DENORMALISATION
 584         bool "PowerPC denormalisation exception handling"
 585         depends on PPC_BOOK3S_64
 586         default "n"
 587         ---help---
 588           Add support for handling denormalisation of single precision
 589           values.  Useful for bare metal only.  If unsure say Y here.
 590
 591 config CMDLINE_BOOL
 592         bool "Default bootloader kernel arguments"
 593
 594 config CMDLINE
 595         string "Initial kernel command string"
 596         depends on CMDLINE_BOOL
 597         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 598         help
 599           On some platforms, there is currently no way for the boot loader to
 600           pass arguments to the kernel. For these platforms, you can supply
 601           some command-line options at build time by entering them here.  In
 602           most cases you will need to specify the root device here.
 603
 604 config EXTRA_TARGETS
 605         string "Additional default image types"
 606         help
 607           List additional targets to be built by the bootwrapper here (separated
 608           by spaces).  This is useful for targets that depend of device tree
 609           files in the .dts directory.
 610
 611           Targets in this list will be build as part of the default build
 612           target, or when the user does a 'make zImage' or a
 613           'make zImage.initrd'.
 614
 615           If unsure, leave blank
 616
 617 config ARCH_WANTS_FREEZER_CONTROL
 618         def_bool y
 619         depends on ADB_PMU
 620
 621 source kernel/power/Kconfig
 622
 623 config SECCOMP
 624         bool "Enable seccomp to safely compute untrusted bytecode"
 625         depends on PROC_FS
 626         default y
 627         help
 628           This kernel feature is useful for number crunching applications
 629           that may need to compute untrusted bytecode during their
 630           execution. By using pipes or other transports made available to
 631           the process as file descriptors supporting the read/write
 632           syscalls, it's possible to isolate those applications in
 633           their own address space using seccomp. Once seccomp is
 634           enabled via /proc/<pid>/seccomp, it cannot be disabled
 635           and the task is only allowed to execute a few safe syscalls
 636           defined by each seccomp mode.
 637
 638           If unsure, say Y. Only embedded should say N here.
 639
 640 endmenu
 641
 642 config ISA_DMA_API
 643         bool
 644         default PCI
 645
 646 menu "Bus options"
 647
 648 config ISA
 649         bool "Support for ISA-bus hardware"
 650         depends on PPC_PREP || PPC_CHRP
 651         select PPC_I8259
 652         help
 653           Find out whether you have ISA slots on your motherboard.  ISA is the
 654           name of a bus system, i.e. the way the CPU talks to the other stuff
 655           inside your box.  If you have an Apple machine, say N here; if you
 656           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 657           you have an embedded board, consult your board documentation.
 658
 659 config ZONE_DMA
 660         bool
 661         default y
 662
 663 config NEED_DMA_MAP_STATE
 664         def_bool (PPC64 || NOT_COHERENT_CACHE)
 665
 666 config NEED_SG_DMA_LENGTH
 667         def_bool y
 668
 669 config GENERIC_ISA_DMA
 670         bool
 671         depends on ISA_DMA_API
 672         default y
 673
 674 config PPC_INDIRECT_PCI
 675         bool
 676         depends on PCI
 677         default y if 40x || 44x
 678         default n
 679
 680 config EISA
 681         bool
 682
 683 config SBUS
 684         bool
 685
 686 config FSL_SOC
 687         bool
 688         select HAVE_CAN_FLEXCAN if NET && CAN
 689         select PPC_CLOCK
 690
 691 config FSL_PCI
 692         bool
 693         select PPC_INDIRECT_PCI
 694         select PCI_QUIRKS
 695
 696 config FSL_PMC
 697         bool
 698         default y
 699         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 700         help
 701           Freescale MPC85xx/MPC86xx power management controller support
 702           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 703
 704 config PPC4xx_CPM
 705         bool
 706         default y
 707         depends on SUSPEND && (44x || 40x)
 708         help
 709           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 710           It also enables support for two different idle states (idle-wait
 711           and idle-doze).
 712
 713 config 4xx_SOC
 714         bool
 715
 716 config FSL_LBC
 717         bool "Freescale Local Bus support"
 718         depends on FSL_SOC
 719         help
 720           Enables reporting of errors from the Freescale local bus
 721           controller.  Also contains some common code used by
 722           drivers for specific local bus peripherals.
 723
 724 config FSL_IFC
 725         bool
 726         depends on FSL_SOC
 727
 728 config FSL_GTM
 729         bool
 730         depends on PPC_83xx || QUICC_ENGINE || CPM2
 731         help
 732           Freescale General-purpose Timers support
 733
 734 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 735 config MCA
 736         bool
 737
 738 # Platforms that what PCI turned unconditionally just do select PCI
 739 # in their config node.  Platforms that want to choose at config
 740 # time should select PPC_PCI_CHOICE
 741 config PPC_PCI_CHOICE
 742         bool
 743
 744 config PCI
 745         bool "PCI support" if PPC_PCI_CHOICE
 746         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 747                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 748         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 749         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 750         select ARCH_SUPPORTS_MSI
 751         select GENERIC_PCI_IOMAP
 752         help
 753           Find out whether your system includes a PCI bus. PCI is the name of
 754           a bus system, i.e. the way the CPU talks to the other stuff inside
 755           your box.  If you say Y here, the kernel will include drivers and
 756           infrastructure code to support PCI bus devices.
 757
 758 config PCI_DOMAINS
 759         def_bool PCI
 760
 761 config PCI_SYSCALL
 762         def_bool PCI
 763
 764 config PCI_QSPAN
 765         bool "QSpan PCI"
 766         depends on !4xx && !CPM2 && 8xx
 767         select PPC_I8259
 768         help
 769           Say Y here if you have a system based on a Motorola 8xx-series
 770           embedded processor with a QSPAN PCI interface, otherwise say N.
 771
 772 config PCI_8260
 773         bool
 774         depends on PCI && 8260
 775         select PPC_INDIRECT_PCI
 776         default y
 777
 778 config 8260_PCI9
 779         bool "Enable workaround for MPC826x erratum PCI 9"
 780         depends on PCI_8260 && !8272
 781         default y
 782
 783 source "drivers/pci/pcie/Kconfig"
 784
 785 source "drivers/pci/Kconfig"
 786
 787 source "drivers/pcmcia/Kconfig"
 788
 789 source "drivers/pci/hotplug/Kconfig"
 790
 791 config HAS_RAPIDIO
 792         bool
 793         default n
 794
 795 config RAPIDIO
 796         bool "RapidIO support"
 797         depends on HAS_RAPIDIO || PCI
 798         help
 799           If you say Y here, the kernel will include drivers and
 800           infrastructure code to support RapidIO interconnect devices.
 801
 802 config FSL_RIO
 803         bool "Freescale Embedded SRIO Controller support"
 804         depends on RAPIDIO && HAS_RAPIDIO
 805         default "n"
 806         ---help---
 807           Include support for RapidIO controller on Freescale embedded
 808           processors (MPC8548, MPC8641, etc).
 809
 810 source "drivers/rapidio/Kconfig"
 811
 812 endmenu
 813
 814 config NONSTATIC_KERNEL
 815         bool
 816         default n
 817
 818 menu "Advanced setup"
 819         depends on PPC32
 820
 821 config ADVANCED_OPTIONS
 822         bool "Prompt for advanced kernel configuration options"
 823         help
 824           This option will enable prompting for a variety of advanced kernel
 825           configuration options.  These options can cause the kernel to not
 826           work if they are set incorrectly, but can be used to optimize certain
 827           aspects of kernel memory management.
 828
 829           Unless you know what you are doing, say N here.
 830
 831 comment "Default settings for advanced configuration options are used"
 832         depends on !ADVANCED_OPTIONS
 833
 834 config LOWMEM_SIZE_BOOL
 835         bool "Set maximum low memory"
 836         depends on ADVANCED_OPTIONS
 837         help
 838           This option allows you to set the maximum amount of memory which
 839           will be used as "low memory", that is, memory which the kernel can
 840           access directly, without having to set up a kernel virtual mapping.
 841           This can be useful in optimizing the layout of kernel virtual
 842           memory.
 843
 844           Say N here unless you know what you are doing.
 845
 846 config LOWMEM_SIZE
 847         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 848         default "0x30000000"
 849
 850 config LOWMEM_CAM_NUM_BOOL
 851         bool "Set number of CAMs to use to map low memory"
 852         depends on ADVANCED_OPTIONS && FSL_BOOKE
 853         help
 854           This option allows you to set the maximum number of CAM slots that
 855           will be used to map low memory.  There are a limited number of slots
 856           available and even more limited number that will fit in the L1 MMU.
 857           However, using more entries will allow mapping more low memory.  This
 858           can be useful in optimizing the layout of kernel virtual memory.
 859
 860           Say N here unless you know what you are doing.
 861
 862 config LOWMEM_CAM_NUM
 863         depends on FSL_BOOKE
 864         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 865         default 3
 866
 867 config DYNAMIC_MEMSTART
 868         bool "Enable page aligned dynamic load address for kernel"
 869         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
 870         select NONSTATIC_KERNEL
 871         help
 872           This option enables the kernel to be loaded at any page aligned
 873           physical address. The kernel creates a mapping from KERNELBASE to
 874           the address where the kernel is loaded. The page size here implies
 875           the TLB page size of the mapping for kernel on the particular platform.
 876           Please refer to the init code for finding the TLB page size.
 877
 878           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
 879           kernel image, where the only restriction is the page aligned kernel
 880           load address. When this option is enabled, the compile time physical
 881           address CONFIG_PHYSICAL_START is ignored.
 882
 883           This option is overridden by CONFIG_RELOCATABLE
 884
 885 config RELOCATABLE
 886         bool "Build a relocatable kernel"
 887         depends on ADVANCED_OPTIONS && FLATMEM && 44x
 888         select NONSTATIC_KERNEL
 889         help
 890           This builds a kernel image that is capable of running at the
 891           location the kernel is loaded at, without any alignment restrictions.
 892           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
 893
 894           One use is for the kexec on panic case where the recovery kernel
 895           must live at a different physical address than the primary
 896           kernel.
 897
 898           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 899           it has been loaded at and the compile time physical addresses
 900           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 901           setting can still be useful to bootwrappers that need to know the
 902           load address of the kernel (eg. u-boot/mkimage).
 903
 904 config RELOCATABLE_PPC32
 905         def_bool y
 906         depends on PPC32 && RELOCATABLE
 907
 908 config PAGE_OFFSET_BOOL
 909         bool "Set custom page offset address"
 910         depends on ADVANCED_OPTIONS
 911         help
 912           This option allows you to set the kernel virtual address at which
 913           the kernel will map low memory.  This can be useful in optimizing
 914           the virtual memory layout of the system.
 915
 916           Say N here unless you know what you are doing.
 917
 918 config PAGE_OFFSET
 919         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 920         default "0xc0000000"
 921
 922 config KERNEL_START_BOOL
 923         bool "Set custom kernel base address"
 924         depends on ADVANCED_OPTIONS
 925         help
 926           This option allows you to set the kernel virtual address at which
 927           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 928           however there are times (like kdump) that one might not want them
 929           to be the same.
 930
 931           Say N here unless you know what you are doing.
 932
 933 config KERNEL_START
 934         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 935         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 936         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
 937         default "0xc0000000"
 938
 939 config PHYSICAL_START_BOOL
 940         bool "Set physical address where the kernel is loaded"
 941         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 942         help
 943           This gives the physical address where the kernel is loaded.
 944
 945           Say N here unless you know what you are doing.
 946
 947 config PHYSICAL_START
 948         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 949         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
 950         default "0x00000000"
 951
 952 config PHYSICAL_ALIGN
 953         hex
 954         default "0x04000000" if FSL_BOOKE
 955         help
 956           This value puts the alignment restrictions on physical address
 957           where kernel is loaded and run from. Kernel is compiled for an
 958           address which meets above alignment restriction.
 959
 960 config TASK_SIZE_BOOL
 961         bool "Set custom user task size"
 962         depends on ADVANCED_OPTIONS
 963         help
 964           This option allows you to set the amount of virtual address space
 965           allocated to user tasks.  This can be useful in optimizing the
 966           virtual memory layout of the system.
 967
 968           Say N here unless you know what you are doing.
 969
 970 config TASK_SIZE
 971         hex "Size of user task space" if TASK_SIZE_BOOL
 972         default "0x80000000" if PPC_PREP || PPC_8xx
 973         default "0xc0000000"
 974
 975 config CONSISTENT_SIZE_BOOL
 976         bool "Set custom consistent memory pool size"
 977         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 978         help
 979           This option allows you to set the size of the
 980           consistent memory pool.  This pool of virtual memory
 981           is used to make consistent memory allocations.
 982
 983 config CONSISTENT_SIZE
 984         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 985         default "0x00200000" if NOT_COHERENT_CACHE
 986
 987 config PIN_TLB
 988         bool "Pinned Kernel TLBs (860 ONLY)"
 989         depends on ADVANCED_OPTIONS && 8xx
 990 endmenu
 991
 992 if PPC64
 993 config RELOCATABLE
 994         bool "Build a relocatable kernel"
 995         select NONSTATIC_KERNEL
 996         help
 997           This builds a kernel image that is capable of running anywhere
 998           in the RMA (real memory area) at any 16k-aligned base address.
 999           The kernel is linked as a position-independent executable (PIE)
1000           and contains dynamic relocations which are processed early
1001           in the bootup process.
1002
1003           One use is for the kexec on panic case where the recovery kernel
1004           must live at a different physical address than the primary
1005           kernel.
1006
1007 config PAGE_OFFSET
1008         hex
1009         default "0xc000000000000000"
1010 config KERNEL_START
1011         hex
1012         default "0xc000000000000000"
1013 config PHYSICAL_START
1014         hex
1015         default "0x00000000"
1016 endif
1017
1018 source "net/Kconfig"
1019
1020 source "drivers/Kconfig"
1021
1022 source "fs/Kconfig"
1023
1024 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1025
1026 source "lib/Kconfig"
1027
1028 source "arch/powerpc/Kconfig.debug"
1029
1030 source "security/Kconfig"
1031
1032 config KEYS_COMPAT
1033         bool
1034         depends on COMPAT && KEYS
1035         default y
1036
1037 source "crypto/Kconfig"
1038
1039 config PPC_CLOCK
1040         bool
1041         default n
1042         select HAVE_CLK
1043
1044 config PPC_LIB_RHEAP
1045         bool
1046
1047 source "arch/powerpc/kvm/Kconfig"