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 ARCH_MIGHT_HAVE_PC_PARPORT
  89         select BINFMT_ELF
  90         select OF
  91         select OF_EARLY_FLATTREE
  92         select HAVE_FTRACE_MCOUNT_RECORD
  93         select HAVE_DYNAMIC_FTRACE
  94         select HAVE_FUNCTION_TRACER
  95         select HAVE_FUNCTION_GRAPH_TRACER
  96         select SYSCTL_EXCEPTION_TRACE
  97         select ARCH_WANT_OPTIONAL_GPIOLIB
  98         select VIRT_TO_BUS if !PPC64
  99         select HAVE_IDE
 100         select HAVE_IOREMAP_PROT
 101         select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
 102         select HAVE_KPROBES
 103         select HAVE_ARCH_KGDB
 104         select HAVE_KRETPROBES
 105         select HAVE_ARCH_TRACEHOOK
 106         select HAVE_MEMBLOCK
 107         select HAVE_MEMBLOCK_NODE_MAP
 108         select HAVE_DMA_ATTRS
 109         select HAVE_DMA_API_DEBUG
 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 ARCH_WANT_IPC_PARSE_VERSION
 118         select SPARSE_IRQ
 119         select IRQ_DOMAIN
 120         select GENERIC_IRQ_SHOW
 121         select GENERIC_IRQ_SHOW_LEVEL
 122         select IRQ_FORCED_THREADING
 123         select HAVE_RCU_TABLE_FREE if SMP
 124         select HAVE_SYSCALL_TRACEPOINTS
 125         select HAVE_BPF_JIT if PPC64
 126         select HAVE_ARCH_JUMP_LABEL
 127         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 128         select GENERIC_SMP_IDLE_THREAD
 129         select GENERIC_CMOS_UPDATE
 130         select GENERIC_TIME_VSYSCALL_OLD
 131         select GENERIC_CLOCKEVENTS
 132         select GENERIC_STRNCPY_FROM_USER
 133         select GENERIC_STRNLEN_USER
 134         select HAVE_MOD_ARCH_SPECIFIC
 135         select MODULES_USE_ELF_RELA
 136         select CLONE_BACKWARDS
 137         select ARCH_USE_BUILTIN_BSWAP
 138         select OLD_SIGSUSPEND
 139         select OLD_SIGACTION if PPC32
 140         select HAVE_DEBUG_STACKOVERFLOW
 141         select HAVE_IRQ_EXIT_ON_IRQ_STACK
 142
 143 config GENERIC_CSUM
 144         def_bool CPU_LITTLE_ENDIAN
 145
 146 config EARLY_PRINTK
 147         bool
 148         default y
 149
 150 config PANIC_TIMEOUT
 151         int
 152         default 180
 153
 154 config COMPAT
 155         bool
 156         default y if PPC64
 157         select COMPAT_BINFMT_ELF
 158         select ARCH_WANT_OLD_COMPAT_IPC
 159         select COMPAT_OLD_SIGACTION
 160
 161 config SYSVIPC_COMPAT
 162         bool
 163         depends on COMPAT && SYSVIPC
 164         default y
 165
 166 # All PPC32s use generic nvram driver through ppc_md
 167 config GENERIC_NVRAM
 168         bool
 169         default y if PPC32
 170
 171 config SCHED_OMIT_FRAME_POINTER
 172         bool
 173         default y
 174
 175 config ARCH_MAY_HAVE_PC_FDC
 176         bool
 177         default !PPC_PSERIES || PCI
 178
 179 config PPC_OF
 180         def_bool y
 181
 182 config PPC_UDBG_16550
 183         bool
 184         default n
 185
 186 config GENERIC_TBSYNC
 187         bool
 188         default y if PPC32 && SMP
 189         default n
 190
 191 config AUDIT_ARCH
 192         bool
 193         default y
 194
 195 config GENERIC_BUG
 196         bool
 197         default y
 198         depends on BUG
 199
 200 config SYS_SUPPORTS_APM_EMULATION
 201         default y if PMAC_APM_EMU
 202         bool
 203
 204 config EPAPR_BOOT
 205         bool
 206         help
 207           Used to allow a board to specify it wants an ePAPR compliant wrapper.
 208         default n
 209
 210 config DEFAULT_UIMAGE
 211         bool
 212         help
 213           Used to allow a board to specify it wants a uImage built by default
 214         default n
 215
 216 config REDBOOT
 217         bool
 218
 219 config ARCH_HIBERNATION_POSSIBLE
 220         bool
 221         default y
 222
 223 config ARCH_SUSPEND_POSSIBLE
 224         def_bool y
 225         depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
 226                    (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
 227                    || 44x || 40x
 228
 229 config PPC_DCR_NATIVE
 230         bool
 231         default n
 232
 233 config PPC_DCR_MMIO
 234         bool
 235         default n
 236
 237 config PPC_DCR
 238         bool
 239         depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
 240         default y
 241
 242 config PPC_OF_PLATFORM_PCI
 243         bool
 244         depends on PCI
 245         depends on PPC64 # not supported on 32 bits yet
 246         default n
 247
 248 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 249         def_bool y
 250
 251 config ARCH_SUPPORTS_UPROBES
 252         def_bool y
 253
 254 config PPC_ADV_DEBUG_REGS
 255         bool
 256         depends on 40x || BOOKE
 257         default y
 258
 259 config PPC_ADV_DEBUG_IACS
 260         int
 261         depends on PPC_ADV_DEBUG_REGS
 262         default 4 if 44x
 263         default 2
 264
 265 config PPC_ADV_DEBUG_DACS
 266         int
 267         depends on PPC_ADV_DEBUG_REGS
 268         default 2
 269
 270 config PPC_ADV_DEBUG_DVCS
 271         int
 272         depends on PPC_ADV_DEBUG_REGS
 273         default 2 if 44x
 274         default 0
 275
 276 config PPC_ADV_DEBUG_DAC_RANGE
 277         bool
 278         depends on PPC_ADV_DEBUG_REGS && 44x
 279         default y
 280
 281 config PPC_EMULATE_SSTEP
 282         bool
 283         default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
 284
 285 source "init/Kconfig"
 286
 287 source "kernel/Kconfig.freezer"
 288
 289 source "arch/powerpc/sysdev/Kconfig"
 290 source "arch/powerpc/platforms/Kconfig"
 291
 292 menu "Kernel options"
 293
 294 config HIGHMEM
 295         bool "High memory support"
 296         depends on PPC32
 297
 298 source kernel/Kconfig.hz
 299 source kernel/Kconfig.preempt
 300 source "fs/Kconfig.binfmt"
 301
 302 config HUGETLB_PAGE_SIZE_VARIABLE
 303         bool
 304         depends on HUGETLB_PAGE
 305         default y
 306
 307 config MATH_EMULATION
 308         bool "Math emulation"
 309         depends on 4xx || 8xx || PPC_MPC832x || BOOKE
 310         ---help---
 311           Some PowerPC chips designed for embedded applications do not have
 312           a floating-point unit and therefore do not implement the
 313           floating-point instructions in the PowerPC instruction set.  If you
 314           say Y here, the kernel will include code to emulate a floating-point
 315           unit, which will allow programs that use floating-point
 316           instructions to run.
 317
 318           This is also useful to emulate missing (optional) instructions
 319           such as fsqrt on cores that do have an FPU but do not implement
 320           them (such as Freescale BookE).
 321
 322 choice
 323         prompt "Math emulation options"
 324         default MATH_EMULATION_FULL
 325         depends on MATH_EMULATION
 326
 327 config  MATH_EMULATION_FULL
 328         bool "Emulate all the floating point instructions"
 329         ---help---
 330           Select this option will enable the kernel to support to emulate
 331           all the floating point instructions. If your SoC doesn't have
 332           a FPU, you should select this.
 333
 334 config MATH_EMULATION_HW_UNIMPLEMENTED
 335         bool "Just emulate the FPU unimplemented instructions"
 336         ---help---
 337           Select this if you know there does have a hardware FPU on your
 338           SoC, but some floating point instructions are not implemented by that.
 339
 340 endchoice
 341
 342 config PPC_TRANSACTIONAL_MEM
 343        bool "Transactional Memory support for POWERPC"
 344        depends on PPC_BOOK3S_64
 345        depends on SMP
 346        default n
 347        ---help---
 348          Support user-mode Transactional Memory on POWERPC.
 349
 350 config IOMMU_HELPER
 351         def_bool PPC64
 352
 353 config SWIOTLB
 354         bool "SWIOTLB support"
 355         default n
 356         select IOMMU_HELPER
 357         ---help---
 358           Support for IO bounce buffering for systems without an IOMMU.
 359           This allows us to DMA to the full physical address space on
 360           platforms where the size of a physical address is larger
 361           than the bus address.  Not all platforms support this.
 362
 363 config HOTPLUG_CPU
 364         bool "Support for enabling/disabling CPUs"
 365         depends on SMP && (PPC_PSERIES || \
 366         PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
 367         ---help---
 368           Say Y here to be able to disable and re-enable individual
 369           CPUs at runtime on SMP machines.
 370
 371           Say N if you are unsure.
 372
 373 config ARCH_CPU_PROBE_RELEASE
 374         def_bool y
 375         depends on HOTPLUG_CPU
 376
 377 config ARCH_ENABLE_MEMORY_HOTPLUG
 378         def_bool y
 379
 380 config ARCH_HAS_WALK_MEMORY
 381         def_bool y
 382
 383 config ARCH_ENABLE_MEMORY_HOTREMOVE
 384         def_bool y
 385
 386 config KEXEC
 387         bool "kexec system call"
 388         depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
 389         help
 390           kexec is a system call that implements the ability to shutdown your
 391           current kernel, and to start another kernel.  It is like a reboot
 392           but it is independent of the system firmware.   And like a reboot
 393           you can start any kernel with it, not just Linux.
 394
 395           The name comes from the similarity to the exec system call.
 396
 397           It is an ongoing process to be certain the hardware in a machine
 398           is properly shutdown, so do not be surprised if this code does not
 399           initially work for you.  As of this writing the exact hardware
 400           interface is strongly in flux, so no good recommendation can be
 401           made.
 402
 403 config CRASH_DUMP
 404         bool "Build a kdump crash kernel"
 405         depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
 406         select RELOCATABLE if PPC64 || 44x
 407         select DYNAMIC_MEMSTART if FSL_BOOKE
 408         help
 409           Build a kernel suitable for use as a kdump capture kernel.
 410           The same kernel binary can be used as production kernel and dump
 411           capture kernel.
 412
 413 config FA_DUMP
 414         bool "Firmware-assisted dump"
 415         depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
 416         help
 417           A robust mechanism to get reliable kernel crash dump with
 418           assistance from firmware. This approach does not use kexec,
 419           instead firmware assists in booting the kdump kernel
 420           while preserving memory contents. Firmware-assisted dump
 421           is meant to be a kdump replacement offering robustness and
 422           speed not possible without system firmware assistance.
 423
 424           If unsure, say "N"
 425
 426 config IRQ_ALL_CPUS
 427         bool "Distribute interrupts on all CPUs by default"
 428         depends on SMP
 429         help
 430           This option gives the kernel permission to distribute IRQs across
 431           multiple CPUs.  Saying N here will route all IRQs to the first
 432           CPU.  Generally saying Y is safe, although some problems have been
 433           reported with SMP Power Macintoshes with this option enabled.
 434
 435 config NUMA
 436         bool "NUMA support"
 437         depends on PPC64
 438         default y if SMP && PPC_PSERIES
 439
 440 config NODES_SHIFT
 441         int
 442         default "8" if PPC64
 443         default "4"
 444         depends on NEED_MULTIPLE_NODES
 445
 446 config ARCH_SELECT_MEMORY_MODEL
 447         def_bool y
 448         depends on PPC64
 449
 450 config ARCH_FLATMEM_ENABLE
 451         def_bool y
 452         depends on (PPC64 && !NUMA) || PPC32
 453
 454 config ARCH_SPARSEMEM_ENABLE
 455         def_bool y
 456         depends on PPC64
 457         select SPARSEMEM_VMEMMAP_ENABLE
 458
 459 config ARCH_SPARSEMEM_DEFAULT
 460         def_bool y
 461         depends on (SMP && PPC_PSERIES) || PPC_PS3
 462
 463 config SYS_SUPPORTS_HUGETLBFS
 464         bool
 465
 466 source "mm/Kconfig"
 467
 468 config ARCH_MEMORY_PROBE
 469         def_bool y
 470         depends on MEMORY_HOTPLUG
 471
 472 # Some NUMA nodes have memory ranges that span
 473 # other nodes.  Even though a pfn is valid and
 474 # between a node's start and end pfns, it may not
 475 # reside on that node.  See memmap_init_zone()
 476 # for details.
 477 config NODES_SPAN_OTHER_NODES
 478         def_bool y
 479         depends on NEED_MULTIPLE_NODES
 480
 481 config PPC_HAS_HASH_64K
 482         bool
 483         depends on PPC64
 484         default n
 485
 486 config STDBINUTILS
 487         bool "Using standard binutils settings"
 488         depends on 44x
 489         default y
 490         help
 491           Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
 492           Note, that kernel will be able to run only those applications,
 493           which had been compiled using binutils later than 2.17.50.0.3 with
 494           '-zmax-page-size' set to 256K (the default is 64K). Or, if using
 495           the older binutils, you can patch them with a trivial patch, which
 496           changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
 497
 498 choice
 499         prompt "Page size"
 500         default PPC_4K_PAGES
 501         help
 502           Select the kernel logical page size. Increasing the page size
 503           will reduce software overhead at each page boundary, allow
 504           hardware prefetch mechanisms to be more effective, and allow
 505           larger dma transfers increasing IO efficiency and reducing
 506           overhead. However the utilization of memory will increase.
 507           For example, each cached file will using a multiple of the
 508           page size to hold its contents and the difference between the
 509           end of file and the end of page is wasted.
 510
 511           Some dedicated systems, such as software raid serving with
 512           accelerated calculations, have shown significant increases.
 513
 514           If you configure a 64 bit kernel for 64k pages but the
 515           processor does not support them, then the kernel will simulate
 516           them with 4k pages, loading them on demand, but with the
 517           reduced software overhead and larger internal fragmentation.
 518           For the 32 bit kernel, a large page option will not be offered
 519           unless it is supported by the configured processor.
 520
 521           If unsure, choose 4K_PAGES.
 522
 523 config PPC_4K_PAGES
 524         bool "4k page size"
 525
 526 config PPC_16K_PAGES
 527         bool "16k page size" if 44x
 528
 529 config PPC_64K_PAGES
 530         bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
 531         select PPC_HAS_HASH_64K if PPC_STD_MMU_64
 532
 533 config PPC_256K_PAGES
 534         bool "256k page size" if 44x
 535         depends on !STDBINUTILS
 536         help
 537           Make the page size 256k.
 538
 539           As the ELF standard only requires alignment to support page
 540           sizes up to 64k, you will need to compile all of your user
 541           space applications with a non-standard binutils settings
 542           (see the STDBINUTILS description for details).
 543
 544           Say N unless you know what you are doing.
 545
 546 endchoice
 547
 548 config FORCE_MAX_ZONEORDER
 549         int "Maximum zone order"
 550         range 9 64 if PPC64 && PPC_64K_PAGES
 551         default "9" if PPC64 && PPC_64K_PAGES
 552         range 13 64 if PPC64 && !PPC_64K_PAGES
 553         default "13" if PPC64 && !PPC_64K_PAGES
 554         range 9 64 if PPC32 && PPC_16K_PAGES
 555         default "9" if PPC32 && PPC_16K_PAGES
 556         range 7 64 if PPC32 && PPC_64K_PAGES
 557         default "7" if PPC32 && PPC_64K_PAGES
 558         range 5 64 if PPC32 && PPC_256K_PAGES
 559         default "5" if PPC32 && PPC_256K_PAGES
 560         range 11 64
 561         default "11"
 562         help
 563           The kernel memory allocator divides physically contiguous memory
 564           blocks into "zones", where each zone is a power of two number of
 565           pages.  This option selects the largest power of two that the kernel
 566           keeps in the memory allocator.  If you need to allocate very large
 567           blocks of physically contiguous memory, then you may need to
 568           increase this value.
 569
 570           This config option is actually maximum order plus one. For example,
 571           a value of 11 means that the largest free memory block is 2^10 pages.
 572
 573           The page size is not necessarily 4KB.  For example, on 64-bit
 574           systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
 575           this in mind when choosing a value for this option.
 576
 577 config PPC_SUBPAGE_PROT
 578         bool "Support setting protections for 4k subpages"
 579         depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 580         help
 581           This option adds support for a system call to allow user programs
 582           to set access permissions (read/write, readonly, or no access)
 583           on the 4k subpages of each 64k page.
 584
 585 config SCHED_SMT
 586         bool "SMT (Hyperthreading) scheduler support"
 587         depends on PPC64 && SMP
 588         help
 589           SMT scheduler support improves the CPU scheduler's decision making
 590           when dealing with POWER5 cpus at a cost of slightly increased
 591           overhead in some places. If unsure say N here.
 592
 593 config PPC_DENORMALISATION
 594         bool "PowerPC denormalisation exception handling"
 595         depends on PPC_BOOK3S_64
 596         default "y" if PPC_POWERNV
 597         ---help---
 598           Add support for handling denormalisation of single precision
 599           values.  Useful for bare metal only.  If unsure say Y here.
 600
 601 config CMDLINE_BOOL
 602         bool "Default bootloader kernel arguments"
 603
 604 config CMDLINE
 605         string "Initial kernel command string"
 606         depends on CMDLINE_BOOL
 607         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 608         help
 609           On some platforms, there is currently no way for the boot loader to
 610           pass arguments to the kernel. For these platforms, you can supply
 611           some command-line options at build time by entering them here.  In
 612           most cases you will need to specify the root device here.
 613
 614 config EXTRA_TARGETS
 615         string "Additional default image types"
 616         help
 617           List additional targets to be built by the bootwrapper here (separated
 618           by spaces).  This is useful for targets that depend of device tree
 619           files in the .dts directory.
 620
 621           Targets in this list will be build as part of the default build
 622           target, or when the user does a 'make zImage' or a
 623           'make zImage.initrd'.
 624
 625           If unsure, leave blank
 626
 627 config ARCH_WANTS_FREEZER_CONTROL
 628         def_bool y
 629         depends on ADB_PMU
 630
 631 source kernel/power/Kconfig
 632
 633 config SECCOMP
 634         bool "Enable seccomp to safely compute untrusted bytecode"
 635         depends on PROC_FS
 636         default y
 637         help
 638           This kernel feature is useful for number crunching applications
 639           that may need to compute untrusted bytecode during their
 640           execution. By using pipes or other transports made available to
 641           the process as file descriptors supporting the read/write
 642           syscalls, it's possible to isolate those applications in
 643           their own address space using seccomp. Once seccomp is
 644           enabled via /proc/<pid>/seccomp, it cannot be disabled
 645           and the task is only allowed to execute a few safe syscalls
 646           defined by each seccomp mode.
 647
 648           If unsure, say Y. Only embedded should say N here.
 649
 650 endmenu
 651
 652 config ISA_DMA_API
 653         bool
 654         default PCI
 655
 656 menu "Bus options"
 657
 658 config ISA
 659         bool "Support for ISA-bus hardware"
 660         depends on PPC_CHRP
 661         select PPC_I8259
 662         help
 663           Find out whether you have ISA slots on your motherboard.  ISA is the
 664           name of a bus system, i.e. the way the CPU talks to the other stuff
 665           inside your box.  If you have an Apple machine, say N here; if you
 666           have an IBM RS/6000 or pSeries machine, say Y.  If you have an
 667           embedded board, consult your board documentation.
 668
 669 config ZONE_DMA
 670         bool
 671         default y
 672
 673 config NEED_DMA_MAP_STATE
 674         def_bool (PPC64 || NOT_COHERENT_CACHE)
 675
 676 config NEED_SG_DMA_LENGTH
 677         def_bool y
 678
 679 config GENERIC_ISA_DMA
 680         bool
 681         depends on ISA_DMA_API
 682         default y
 683
 684 config PPC_INDIRECT_PCI
 685         bool
 686         depends on PCI
 687         default y if 40x || 44x
 688         default n
 689
 690 config EISA
 691         bool
 692
 693 config SBUS
 694         bool
 695
 696 config FSL_SOC
 697         bool
 698
 699 config FSL_PCI
 700         bool
 701         select PPC_INDIRECT_PCI
 702         select PCI_QUIRKS
 703
 704 config FSL_PMC
 705         bool
 706         default y
 707         depends on SUSPEND && (PPC_85xx || PPC_86xx)
 708         help
 709           Freescale MPC85xx/MPC86xx power management controller support
 710           (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
 711
 712 config PPC4xx_CPM
 713         bool
 714         default y
 715         depends on SUSPEND && (44x || 40x)
 716         help
 717           PPC4xx Clock Power Management (CPM) support (suspend/resume).
 718           It also enables support for two different idle states (idle-wait
 719           and idle-doze).
 720
 721 config 4xx_SOC
 722         bool
 723
 724 config FSL_LBC
 725         bool "Freescale Local Bus support"
 726         depends on FSL_SOC
 727         help
 728           Enables reporting of errors from the Freescale local bus
 729           controller.  Also contains some common code used by
 730           drivers for specific local bus peripherals.
 731
 732 config FSL_IFC
 733         bool
 734         depends on FSL_SOC
 735
 736 config FSL_GTM
 737         bool
 738         depends on PPC_83xx || QUICC_ENGINE || CPM2
 739         help
 740           Freescale General-purpose Timers support
 741
 742 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 743 config MCA
 744         bool
 745
 746 # Platforms that what PCI turned unconditionally just do select PCI
 747 # in their config node.  Platforms that want to choose at config
 748 # time should select PPC_PCI_CHOICE
 749 config PPC_PCI_CHOICE
 750         bool
 751
 752 config PCI
 753         bool "PCI support" if PPC_PCI_CHOICE
 754         default y if !40x && !CPM2 && !8xx && !PPC_83xx \
 755                 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
 756         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 757         select GENERIC_PCI_IOMAP
 758         help
 759           Find out whether your system includes a PCI bus. PCI is the name of
 760           a bus system, i.e. the way the CPU talks to the other stuff inside
 761           your box.  If you say Y here, the kernel will include drivers and
 762           infrastructure code to support PCI bus devices.
 763
 764 config PCI_DOMAINS
 765         def_bool PCI
 766
 767 config PCI_SYSCALL
 768         def_bool PCI
 769
 770 config PCI_QSPAN
 771         bool "QSpan PCI"
 772         depends on !4xx && !CPM2 && 8xx
 773         select PPC_I8259
 774         help
 775           Say Y here if you have a system based on a Motorola 8xx-series
 776           embedded processor with a QSPAN PCI interface, otherwise say N.
 777
 778 config PCI_8260
 779         bool
 780         depends on PCI && 8260
 781         select PPC_INDIRECT_PCI
 782         default y
 783
 784 source "drivers/pci/pcie/Kconfig"
 785
 786 source "drivers/pci/Kconfig"
 787
 788 source "drivers/pcmcia/Kconfig"
 789
 790 source "drivers/pci/hotplug/Kconfig"
 791
 792 config HAS_RAPIDIO
 793         bool
 794         default n
 795
 796 config RAPIDIO
 797         tristate "RapidIO support"
 798         depends on HAS_RAPIDIO || PCI
 799         help
 800           If you say Y here, the kernel will include drivers and
 801           infrastructure code to support RapidIO interconnect devices.
 802
 803 config FSL_RIO
 804         bool "Freescale Embedded SRIO Controller support"
 805         depends on RAPIDIO = y && HAS_RAPIDIO
 806         default "n"
 807         ---help---
 808           Include support for RapidIO controller on Freescale embedded
 809           processors (MPC8548, MPC8641, etc).
 810
 811 source "drivers/rapidio/Kconfig"
 812
 813 endmenu
 814
 815 config NONSTATIC_KERNEL
 816         bool
 817         default n
 818
 819 menu "Advanced setup"
 820         depends on PPC32
 821
 822 config ADVANCED_OPTIONS
 823         bool "Prompt for advanced kernel configuration options"
 824         help
 825           This option will enable prompting for a variety of advanced kernel
 826           configuration options.  These options can cause the kernel to not
 827           work if they are set incorrectly, but can be used to optimize certain
 828           aspects of kernel memory management.
 829
 830           Unless you know what you are doing, say N here.
 831
 832 comment "Default settings for advanced configuration options are used"
 833         depends on !ADVANCED_OPTIONS
 834
 835 config LOWMEM_SIZE_BOOL
 836         bool "Set maximum low memory"
 837         depends on ADVANCED_OPTIONS
 838         help
 839           This option allows you to set the maximum amount of memory which
 840           will be used as "low memory", that is, memory which the kernel can
 841           access directly, without having to set up a kernel virtual mapping.
 842           This can be useful in optimizing the layout of kernel virtual
 843           memory.
 844
 845           Say N here unless you know what you are doing.
 846
 847 config LOWMEM_SIZE
 848         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 849         default "0x30000000"
 850
 851 config LOWMEM_CAM_NUM_BOOL
 852         bool "Set number of CAMs to use to map low memory"
 853         depends on ADVANCED_OPTIONS && FSL_BOOKE
 854         help
 855           This option allows you to set the maximum number of CAM slots that
 856           will be used to map low memory.  There are a limited number of slots
 857           available and even more limited number that will fit in the L1 MMU.
 858           However, using more entries will allow mapping more low memory.  This
 859           can be useful in optimizing the layout of kernel virtual memory.
 860
 861           Say N here unless you know what you are doing.
 862
 863 config LOWMEM_CAM_NUM
 864         depends on FSL_BOOKE
 865         int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
 866         default 3
 867
 868 config DYNAMIC_MEMSTART
 869         bool "Enable page aligned dynamic load address for kernel"
 870         depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
 871         select NONSTATIC_KERNEL
 872         help
 873           This option enables the kernel to be loaded at any page aligned
 874           physical address. The kernel creates a mapping from KERNELBASE to
 875           the address where the kernel is loaded. The page size here implies
 876           the TLB page size of the mapping for kernel on the particular platform.
 877           Please refer to the init code for finding the TLB page size.
 878
 879           DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
 880           kernel image, where the only restriction is the page aligned kernel
 881           load address. When this option is enabled, the compile time physical
 882           address CONFIG_PHYSICAL_START is ignored.
 883
 884           This option is overridden by CONFIG_RELOCATABLE
 885
 886 config RELOCATABLE
 887         bool "Build a relocatable kernel"
 888         depends on ADVANCED_OPTIONS && FLATMEM && 44x
 889         select NONSTATIC_KERNEL
 890         help
 891           This builds a kernel image that is capable of running at the
 892           location the kernel is loaded at, without any alignment restrictions.
 893           This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
 894
 895           One use is for the kexec on panic case where the recovery kernel
 896           must live at a different physical address than the primary
 897           kernel.
 898
 899           Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
 900           it has been loaded at and the compile time physical addresses
 901           CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
 902           setting can still be useful to bootwrappers that need to know the
 903           load address of the kernel (eg. u-boot/mkimage).
 904
 905 config RELOCATABLE_PPC32
 906         def_bool y
 907         depends on PPC32 && RELOCATABLE
 908
 909 config PAGE_OFFSET_BOOL
 910         bool "Set custom page offset address"
 911         depends on ADVANCED_OPTIONS
 912         help
 913           This option allows you to set the kernel virtual address at which
 914           the kernel will map low memory.  This can be useful in optimizing
 915           the virtual memory layout of the system.
 916
 917           Say N here unless you know what you are doing.
 918
 919 config PAGE_OFFSET
 920         hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
 921         default "0xc0000000"
 922
 923 config KERNEL_START_BOOL
 924         bool "Set custom kernel base address"
 925         depends on ADVANCED_OPTIONS
 926         help
 927           This option allows you to set the kernel virtual address at which
 928           the kernel will be loaded.  Normally this should match PAGE_OFFSET
 929           however there are times (like kdump) that one might not want them
 930           to be the same.
 931
 932           Say N here unless you know what you are doing.
 933
 934 config KERNEL_START
 935         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 936         default PAGE_OFFSET if PAGE_OFFSET_BOOL
 937         default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
 938         default "0xc0000000"
 939
 940 config PHYSICAL_START_BOOL
 941         bool "Set physical address where the kernel is loaded"
 942         depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
 943         help
 944           This gives the physical address where the kernel is loaded.
 945
 946           Say N here unless you know what you are doing.
 947
 948 config PHYSICAL_START
 949         hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
 950         default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
 951         default "0x00000000"
 952
 953 config PHYSICAL_ALIGN
 954         hex
 955         default "0x04000000" if FSL_BOOKE
 956         help
 957           This value puts the alignment restrictions on physical address
 958           where kernel is loaded and run from. Kernel is compiled for an
 959           address which meets above alignment restriction.
 960
 961 config TASK_SIZE_BOOL
 962         bool "Set custom user task size"
 963         depends on ADVANCED_OPTIONS
 964         help
 965           This option allows you to set the amount of virtual address space
 966           allocated to user tasks.  This can be useful in optimizing the
 967           virtual memory layout of the system.
 968
 969           Say N here unless you know what you are doing.
 970
 971 config TASK_SIZE
 972         hex "Size of user task space" if TASK_SIZE_BOOL
 973         default "0x80000000" if PPC_8xx
 974         default "0xc0000000"
 975
 976 config CONSISTENT_SIZE_BOOL
 977         bool "Set custom consistent memory pool size"
 978         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 979         help
 980           This option allows you to set the size of the
 981           consistent memory pool.  This pool of virtual memory
 982           is used to make consistent memory allocations.
 983
 984 config CONSISTENT_SIZE
 985         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 986         default "0x00200000" if NOT_COHERENT_CACHE
 987
 988 config PIN_TLB
 989         bool "Pinned Kernel TLBs (860 ONLY)"
 990         depends on ADVANCED_OPTIONS && 8xx
 991 endmenu
 992
 993 if PPC64
 994 config RELOCATABLE
 995         bool "Build a relocatable kernel"
 996         select NONSTATIC_KERNEL
 997         help
 998           This builds a kernel image that is capable of running anywhere
 999           in the RMA (real memory area) at any 16k-aligned base address.
1000           The kernel is linked as a position-independent executable (PIE)
1001           and contains dynamic relocations which are processed early
1002           in the bootup process.
1003
1004           One use is for the kexec on panic case where the recovery kernel
1005           must live at a different physical address than the primary
1006           kernel.
1007
1008 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1009 config PAGE_OFFSET
1010         hex
1011         default "0xc000000000000000"
1012 config KERNEL_START
1013         hex
1014         default "0xc000000000000000"
1015 config PHYSICAL_START
1016         hex
1017         default "0x00000000"
1018 endif
1019
1020 config  ARCH_RANDOM
1021         def_bool n
1022
1023 source "net/Kconfig"
1024
1025 source "drivers/Kconfig"
1026
1027 source "fs/Kconfig"
1028
1029 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1030
1031 source "lib/Kconfig"
1032
1033 source "arch/powerpc/Kconfig.debug"
1034
1035 source "security/Kconfig"
1036
1037 config KEYS_COMPAT
1038         bool
1039         depends on COMPAT && KEYS
1040         default y
1041
1042 source "crypto/Kconfig"
1043
1044 config PPC_CLOCK
1045         bool
1046         default n
1047         select HAVE_CLK
1048
1049 config PPC_LIB_RHEAP
1050         bool
1051
1052 source "arch/powerpc/kvm/Kconfig"