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