Kconfig 24.5 KB
Newer Older
1
source "arch/powerpc/platforms/Kconfig.cputype"
2

3 4 5 6
config PPC32
	bool
	default y if !PPC64

7 8 9 10
config 32BIT
	bool
	default y if PPC32

11 12 13 14
config 64BIT
	bool
	default y if PPC64

15 16 17 18 19
config WORD_SIZE
	int
	default 64 if PPC64
	default 32 if !PPC64

20 21 22
config ARCH_PHYS_ADDR_T_64BIT
       def_bool PPC64 || PHYS_64BIT

23 24 25 26
config MMU
	bool
	default y

27 28 29
config GENERIC_CMOS_UPDATE
	def_bool y

30 31 32
config GENERIC_TIME_VSYSCALL
	def_bool y

33 34 35
config GENERIC_CLOCKEVENTS
	def_bool y

36 37 38 39
config GENERIC_HARDIRQS
	bool
	default y

40 41 42 43
config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	default y

44
config HAVE_SETUP_PER_CPU_AREA
45 46
	def_bool PPC64

47
config NEED_PER_CPU_EMBED_FIRST_CHUNK
48 49
	def_bool PPC64

50 51 52 53
config IRQ_PER_CPU
	bool
	default y

54 55
config NR_IRQS
	int "Number of virtual interrupt numbers"
56
	range 32 32768
57 58 59 60 61 62 63
	default "512"
	help
	  This defines the number of virtual interrupt numbers the kernel
	  can manage. Virtual interrupt numbers are what you see in
	  /proc/interrupts. If you configure your system to have too few,
	  drivers will fail to load or worse - handle with care.

64 65 66 67
config STACKTRACE_SUPPORT
	bool
	default y

A
Arnd Bergmann 已提交
68 69 70
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

71 72 73 74 75 76 77 78
config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

config LOCKDEP_SUPPORT
	bool
	default y

79 80 81 82 83 84 85
config RWSEM_GENERIC_SPINLOCK
	bool

config RWSEM_XCHGADD_ALGORITHM
	bool
	default y

N
Nick Piggin 已提交
86 87 88 89 90
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

91 92
config ARCH_HAS_ILOG2_U32
	bool
93
	default y
94 95 96

config ARCH_HAS_ILOG2_U64
	bool
97
	default y if 64BIT
98

99 100 101 102
config GENERIC_HWEIGHT
	bool
	default y

103 104 105 106
config GENERIC_FIND_NEXT_BIT
	bool
	default y

107 108 109 110 111
config GENERIC_GPIO
	bool
	help
	  Generic GPIO API support

S
Stephen Rothwell 已提交
112 113 114
config ARCH_NO_VIRT_TO_BUS
	def_bool PPC64

115 116 117
config PPC
	bool
	default y
118 119
	select OF
	select OF_FLATTREE
S
Steven Rostedt 已提交
120 121
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
122
	select HAVE_FUNCTION_TRACER
123
	select HAVE_FUNCTION_GRAPH_TRACER
M
Michael Buesch 已提交
124
	select ARCH_WANT_OPTIONAL_GPIOLIB
S
Sam Ravnborg 已提交
125
	select HAVE_IDE
B
Benjamin Herrenschmidt 已提交
126
	select HAVE_IOREMAP_PROT
127
	select HAVE_EFFICIENT_UNALIGNED_ACCESS
M
Mathieu Desnoyers 已提交
128
	select HAVE_KPROBES
129
	select HAVE_ARCH_KGDB
130
	select HAVE_KRETPROBES
131
	select HAVE_ARCH_TRACEHOOK
Y
Yinghai Lu 已提交
132
	select HAVE_MEMBLOCK
133
	select HAVE_DMA_ATTRS
134
	select HAVE_DMA_API_DEBUG
135
	select USE_GENERIC_SMP_HELPERS if SMP
S
Steven Rostedt 已提交
136
	select HAVE_OPROFILE
137
	select HAVE_SYSCALL_WRAPPERS if PPC64
138
	select GENERIC_ATOMIC64 if PPC32
139
	select HAVE_IRQ_WORK
140
	select HAVE_PERF_EVENTS
141
	select HAVE_REGS_AND_STACK_ACCESS_API
142
	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
143 144 145

config EARLY_PRINTK
	bool
146
	default y
147 148 149 150

config COMPAT
	bool
	default y if PPC64
151
	select COMPAT_BINFMT_ELF
152 153 154 155 156 157 158 159 160 161 162

config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

# All PPC32s use generic nvram driver through ppc_md
config GENERIC_NVRAM
	bool
	default y if PPC32

163
config SCHED_OMIT_FRAME_POINTER
164 165 166 167 168
	bool
	default y

config ARCH_MAY_HAVE_PC_FDC
	bool
169
	default !PPC_PSERIES || PCI
170

171 172 173 174 175 176 177 178 179 180 181 182
config PPC_OF
	def_bool y

config PPC_UDBG_16550
	bool
	default n

config GENERIC_TBSYNC
	bool
	default y if PPC32 && SMP
	default n

183 184 185 186
config AUDIT_ARCH
	bool
	default y

187 188 189 190 191
config GENERIC_BUG
	bool
	default y
	depends on BUG

192
config SYS_SUPPORTS_APM_EMULATION
K
Kumar Gala 已提交
193
	default y if PMAC_APM_EMU
194 195
	bool

196 197 198 199 200 201
config DEFAULT_UIMAGE
	bool
	help
	  Used to allow a board to specify it wants a uImage built by default
	default n

202 203 204
config REDBOOT
	bool

205 206
config ARCH_HIBERNATION_POSSIBLE
	bool
207 208
	default y

J
Johannes Berg 已提交
209 210
config ARCH_SUSPEND_POSSIBLE
	def_bool y
211
	depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
212
		   PPC_85xx || PPC_86xx || PPC_PSERIES
J
Johannes Berg 已提交
213

214 215 216 217 218 219 220 221 222 223 224 225 226
config PPC_DCR_NATIVE
	bool
	default n

config PPC_DCR_MMIO
	bool
	default n

config PPC_DCR
	bool
	depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
	default y

227 228
config PPC_OF_PLATFORM_PCI
	bool
229
	depends on PCI
230 231 232
	depends on PPC64 # not supported on 32 bits yet
	default n

A
Akinobu Mita 已提交
233 234 235
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
	def_bool y

236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262
config PPC_ADV_DEBUG_REGS
	bool
	depends on 40x || BOOKE
	default y

config PPC_ADV_DEBUG_IACS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 4 if 44x
	default 2

config PPC_ADV_DEBUG_DACS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 2

config PPC_ADV_DEBUG_DVCS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 2 if 44x
	default 0

config PPC_ADV_DEBUG_DAC_RANGE
	bool
	depends on PPC_ADV_DEBUG_REGS && 44x
	default y

263 264
source "init/Kconfig"

265 266
source "kernel/Kconfig.freezer"

267
source "arch/powerpc/sysdev/Kconfig"
268
source "arch/powerpc/platforms/Kconfig"
269 270 271 272 273 274 275

menu "Kernel options"

config HIGHMEM
	bool "High memory support"
	depends on PPC32

276
source kernel/time/Kconfig
277 278 279 280
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "fs/Kconfig.binfmt"

281 282 283 284 285
config HUGETLB_PAGE_SIZE_VARIABLE
	bool
	depends on HUGETLB_PAGE
	default y

286 287
config MATH_EMULATION
	bool "Math emulation"
288
	depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
289 290 291 292 293 294 295 296
	---help---
	  Some PowerPC chips designed for embedded applications do not have
	  a floating-point unit and therefore do not implement the
	  floating-point instructions in the PowerPC instruction set.  If you
	  say Y here, the kernel will include code to emulate a floating-point
	  unit, which will allow programs that use floating-point
	  instructions to run.

297 298 299 300 301 302 303 304 305 306 307
config 8XX_MINIMAL_FPEMU
	bool "Minimal math emulation for 8xx"
	depends on 8xx && !MATH_EMULATION
	help
	  Older arch/ppc kernels still emulated a few floating point
	  instructions such as load and store, even when full math
	  emulation is disabled.  Say "Y" here if you want to preserve
	  this behavior.

	  It is recommended that you build a soft-float userspace instead.

308 309 310
config IOMMU_HELPER
	def_bool PPC64

311 312 313 314 315 316 317 318 319 320
config SWIOTLB
	bool "SWIOTLB support"
	default n
	select IOMMU_HELPER
	---help---
	  Support for IO bounce buffering for systems without an IOMMU.
	  This allows us to DMA to the full physical address space on
	  platforms where the size of a physical address is larger
	  than the bus address.  Not all platforms support this.

321 322 323 324 325 326 327 328 329
config HOTPLUG_CPU
	bool "Support for enabling/disabling CPUs"
	depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
	---help---
	  Say Y here to be able to disable and re-enable individual
	  CPUs at runtime on SMP machines.

	  Say N if you are unsure.

330 331 332 333
config ARCH_CPU_PROBE_RELEASE
	def_bool y
	depends on HOTPLUG_CPU

334 335 336
config ARCH_ENABLE_MEMORY_HOTPLUG
	def_bool y

337 338 339
config ARCH_HAS_WALK_MEMORY
	def_bool y

340 341 342
config ARCH_ENABLE_MEMORY_HOTREMOVE
	def_bool y

343 344
config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
345
	depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
346 347 348
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
349
	  but it is independent of the system firmware.   And like a reboot
350 351
	  you can start any kernel with it, not just Linux.

352
	  The name comes from the similarity to the exec system call.
353 354 355 356 357 358 359

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.  As of this writing the exact hardware interface is
	  strongly in flux, so no good recommendation can be made.

360
config CRASH_DUMP
361
	bool "Build a kdump crash kernel"
362 363
	depends on PPC64 || 6xx || FSL_BOOKE
	select RELOCATABLE if PPC64 || FSL_BOOKE
364 365
	help
	  Build a kernel suitable for use as a kdump capture kernel.
366 367
	  The same kernel binary can be used as production kernel and dump
	  capture kernel.
368

369 370 371 372 373 374
config PHYP_DUMP
	bool "Hypervisor-assisted dump (EXPERIMENTAL)"
	depends on PPC_PSERIES && EXPERIMENTAL
	help
	  Hypervisor-assisted dump is meant to be a kdump replacement
	  offering robustness and speed not possible without system
375
	  hypervisor assistance.
376 377 378

	  If unsure, say "N"

379 380 381 382 383 384 385 386 387 388 389 390 391
config PPCBUG_NVRAM
	bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
	default y if PPC_PREP

config IRQ_ALL_CPUS
	bool "Distribute interrupts on all CPUs by default"
	depends on SMP && !MV64360
	help
	  This option gives the kernel permission to distribute IRQs across
	  multiple CPUs.  Saying N here will route all IRQs to the first
	  CPU.  Generally saying Y is safe, although some problems have been
	  reported with SMP Power Macintoshes with this option enabled.

392 393
config SPARSE_IRQ
	bool "Support sparse irq numbering"
Y
Yang Li 已提交
394
	default n
395 396 397 398 399 400 401 402
	help
	  This enables support for sparse irqs. This is useful for distro
	  kernels that want to define a high CONFIG_NR_CPUS value but still
	  want to have low kernel memory footprint on smaller machines.

	  ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
	    out the irq_desc[] array in a more NUMA-friendly way. )

Y
Yang Li 已提交
403
	  If you don't know what to do here, say N.
404

405 406 407 408 409
config NUMA
	bool "NUMA support"
	depends on PPC64
	default y if SMP && PPC_PSERIES

Y
Yasunori Goto 已提交
410 411
config NODES_SHIFT
	int
412
	default "8" if PPC64
Y
Yasunori Goto 已提交
413 414 415
	default "4"
	depends on NEED_MULTIPLE_NODES

416 417 418 419 420
config MAX_ACTIVE_REGIONS
	int
	default "256" if PPC64
	default "32"

421 422 423 424 425
config ARCH_SELECT_MEMORY_MODEL
	def_bool y
	depends on PPC64

config ARCH_FLATMEM_ENABLE
426 427
	def_bool y
	depends on (PPC64 && !NUMA) || PPC32
428

429
config ARCH_SPARSEMEM_ENABLE
430
	def_bool y
431
	depends on PPC64
A
Andy Whitcroft 已提交
432
	select SPARSEMEM_VMEMMAP_ENABLE
433

434
config ARCH_SPARSEMEM_DEFAULT
435
	def_bool y
436
	depends on (SMP && PPC_PSERIES) || PPC_PS3
437

438
config ARCH_POPULATES_NODE_MAP
439
	def_bool y
440

441 442 443 444
config SYS_SUPPORTS_HUGETLBFS
       def_bool y
       depends on PPC_BOOK3S_64

445
source "mm/Kconfig"
446

M
Mike Kravetz 已提交
447 448 449 450
config ARCH_MEMORY_PROBE
	def_bool y
	depends on MEMORY_HOTPLUG

451 452 453 454 455 456 457 458 459
# Some NUMA nodes have memory ranges that span
# other nodes.  Even though a pfn is valid and
# between a node's start and end pfns, it may not
# reside on that node.  See memmap_init_zone()
# for details.
config NODES_SPAN_OTHER_NODES
	def_bool y
	depends on NEED_MULTIPLE_NODES

460 461 462 463 464
config PPC_HAS_HASH_64K
	bool
	depends on PPC64
	default n

465 466 467 468 469 470 471 472 473 474 475 476
config STDBINUTILS
	bool "Using standard binutils settings"
	depends on 44x
	default y
	help
	  Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
	  Note, that kernel will be able to run only those applications,
	  which had been compiled using binutils later than 2.17.50.0.3 with
	  '-zmax-page-size' set to 256K (the default is 64K). Or, if using
	  the older binutils, you can patch them with a trivial patch, which
	  changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.

477 478 479
choice
	prompt "Page size"
	default PPC_4K_PAGES
480
	help
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508
	  Select the kernel logical page size. Increasing the page size
	  will reduce software overhead at each page boundary, allow
	  hardware prefetch mechanisms to be more effective, and allow
	  larger dma transfers increasing IO efficiency and reducing
	  overhead. However the utilization of memory will increase.
	  For example, each cached file will using a multiple of the
	  page size to hold its contents and the difference between the
	  end of file and the end of page is wasted.

	  Some dedicated systems, such as software raid serving with
	  accelerated calculations, have shown significant increases.

	  If you configure a 64 bit kernel for 64k pages but the
	  processor does not support them, then the kernel will simulate
	  them with 4k pages, loading them on demand, but with the
	  reduced software overhead and larger internal fragmentation.
	  For the 32 bit kernel, a large page option will not be offered
	  unless it is supported by the configured processor.

	  If unsure, choose 4K_PAGES.

config PPC_4K_PAGES
	bool "4k page size"

config PPC_16K_PAGES
	bool "16k page size" if 44x

config PPC_64K_PAGES
509
	bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
510 511
	select PPC_HAS_HASH_64K if PPC_STD_MMU_64

512 513
config PPC_256K_PAGES
	bool "256k page size" if 44x
514
	depends on !STDBINUTILS
515 516 517 518 519 520 521 522 523 524
	help
	  Make the page size 256k.

	  As the ELF standard only requires alignment to support page
	  sizes up to 64k, you will need to compile all of your user
	  space applications with a non-standard binutils settings
	  (see the STDBINUTILS description for details).

	  Say N unless you know what you are doing.

525
endchoice
526

527 528
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
529 530 531 532 533 534 535 536 537 538
	range 9 64 if PPC64 && PPC_64K_PAGES
	default "9" if PPC64 && PPC_64K_PAGES
	range 13 64 if PPC64 && !PPC_64K_PAGES
	default "13" if PPC64 && !PPC_64K_PAGES
	range 9 64 if PPC32 && PPC_16K_PAGES
	default "9" if PPC32 && PPC_16K_PAGES
	range 7 64 if PPC32 && PPC_64K_PAGES
	default "7" if PPC32 && PPC_64K_PAGES
	range 5 64 if PPC32 && PPC_256K_PAGES
	default "5" if PPC32 && PPC_256K_PAGES
J
Johannes Berg 已提交
539
	range 11 64
540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555
	default "11"
	help
	  The kernel memory allocator divides physically contiguous memory
	  blocks into "zones", where each zone is a power of two number of
	  pages.  This option selects the largest power of two that the kernel
	  keeps in the memory allocator.  If you need to allocate very large
	  blocks of physically contiguous memory, then you may need to
	  increase this value.

	  This config option is actually maximum order plus one. For example,
	  a value of 11 means that the largest free memory block is 2^10 pages.

	  The page size is not necessarily 4KB.  For example, on 64-bit
	  systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
	  this in mind when choosing a value for this option.

556 557
config PPC_SUBPAGE_PROT
	bool "Support setting protections for 4k subpages"
558
	depends on PPC_STD_MMU_64 && PPC_64K_PAGES
559 560 561 562 563
	help
	  This option adds support for a system call to allow user programs
	  to set access permissions (read/write, readonly, or no access)
	  on the 4k subpages of each 64k page.

564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
config SCHED_SMT
	bool "SMT (Hyperthreading) scheduler support"
	depends on PPC64 && SMP
	help
	  SMT scheduler support improves the CPU scheduler's decision making
	  when dealing with POWER5 cpus at a cost of slightly increased
	  overhead in some places. If unsure say N here.

config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"

config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
	help
	  On some platforms, there is currently no way for the boot loader to
	  pass arguments to the kernel. For these platforms, you can supply
	  some command-line options at build time by entering them here.  In
	  most cases you will need to specify the root device here.

585 586 587 588 589 590 591 592 593 594 595 596 597
config EXTRA_TARGETS
	string "Additional default image types"
	help
	  List additional targets to be built by the bootwrapper here (separated
	  by spaces).  This is useful for targets that depend of device tree
	  files in the .dts directory.

	  Targets in this list will be build as part of the default build
	  target, or when the user does a 'make zImage' or a
	  'make zImage.initrd'.

	  If unsure, leave blank

598
if !44x || BROKEN
599 600 601 602
config ARCH_WANTS_FREEZER_CONTROL
	def_bool y
	depends on ADB_PMU

603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626
source kernel/power/Kconfig
endif

config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on PROC_FS
	default y
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via /proc/<pid>/seccomp, it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

	  If unsure, say Y. Only embedded should say N here.

endmenu

config ISA_DMA_API
	bool
627
	default !PPC_ISERIES || PCI
628 629 630 631 632 633

menu "Bus options"

config ISA
	bool "Support for ISA-bus hardware"
	depends on PPC_PREP || PPC_CHRP
634
	select PPC_I8259
635 636 637 638 639 640 641
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  If you have an Apple machine, say N here; if you
	  have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
	  you have an embedded board, consult your board documentation.

642 643 644 645
config ZONE_DMA
	bool
	default y

646 647 648
config NEED_DMA_MAP_STATE
	def_bool (PPC64 || NOT_COHERENT_CACHE)

649 650 651
config NEED_SG_DMA_LENGTH
	def_bool y

652 653
config GENERIC_ISA_DMA
	bool
654
	depends on ISA_DMA_API
655 656
	default y

657 658 659
config PPC_INDIRECT_PCI
	bool
	depends on PCI
660
	default y if 40x || 44x
661 662
	default n

663 664 665 666 667 668
config EISA
	bool

config SBUS
	bool

669 670 671
config FSL_SOC
	bool

672 673 674
config FSL_PCI
 	bool
	select PPC_INDIRECT_PCI
675
	select PCI_QUIRKS
676

677 678 679 680 681 682 683 684
config FSL_PMC
	bool
	default y
	depends on SUSPEND && (PPC_85xx || PPC_86xx)
	help
	  Freescale MPC85xx/MPC86xx power management controller support
	  (suspend/resume). For MPC83xx see platforms/83xx/suspend.c

685 686 687
config 4xx_SOC
	bool

688
config FSL_LBC
689 690
	bool "Freescale Local Bus support"
	depends on FSL_SOC
691
	help
692 693 694
	  Enables reporting of errors from the Freescale local bus
	  controller.  Also contains some common code used by
	  drivers for specific local bus peripherals.
695

696 697 698 699 700 701
config FSL_GTM
	bool
	depends on PPC_83xx || QUICC_ENGINE || CPM2
	help
	  Freescale General-purpose Timers support

702 703 704 705
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
	bool

J
John Rigby 已提交
706 707 708 709 710 711
# Platforms that what PCI turned unconditionally just do select PCI
# in their config node.  Platforms that want to choose at config
# time should select PPC_PCI_CHOICE
config PPC_PCI_CHOICE
	bool

712
config PCI
J
John Rigby 已提交
713 714
	bool "PCI support" if PPC_PCI_CHOICE
	default y if !40x && !CPM2 && !8xx && !PPC_83xx \
715
		&& !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
716
	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
717
	default PCI_QSPAN if !4xx && !CPM2 && 8xx
718
	select ARCH_SUPPORTS_MSI
719 720 721 722 723 724 725
	help
	  Find out whether your system includes a PCI bus. PCI is the name of
	  a bus system, i.e. the way the CPU talks to the other stuff inside
	  your box.  If you say Y here, the kernel will include drivers and
	  infrastructure code to support PCI bus devices.

config PCI_DOMAINS
726 727 728 729
	def_bool PCI

config PCI_SYSCALL
	def_bool PCI
730 731 732 733

config PCI_QSPAN
	bool "QSpan PCI"
	depends on !4xx && !CPM2 && 8xx
734
	select PPC_I8259
735 736 737 738 739 740 741
	help
	  Say Y here if you have a system based on a Motorola 8xx-series
	  embedded processor with a QSPAN PCI interface, otherwise say N.

config PCI_8260
	bool
	depends on PCI && 8260
742
	select PPC_INDIRECT_PCI
743 744 745
	default y

config 8260_PCI9
746
	bool "Enable workaround for MPC826x erratum PCI 9"
747
	depends on PCI_8260 && !8272
748 749 750
	default y

choice
751
	prompt "IDMA channel for PCI 9 workaround"
752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767
	depends on 8260_PCI9

config 8260_PCI9_IDMA1
	bool "IDMA1"

config 8260_PCI9_IDMA2
	bool "IDMA2"

config 8260_PCI9_IDMA3
	bool "IDMA3"

config 8260_PCI9_IDMA4
	bool "IDMA4"

endchoice

768 769
source "drivers/pci/pcie/Kconfig"

770 771 772 773 774 775
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

776 777 778 779 780 781 782 783 784 785 786 787 788
config HAS_RAPIDIO
	bool
	default n

config RAPIDIO
	bool "RapidIO support"
	depends on HAS_RAPIDIO
	help
	  If you say Y here, the kernel will include drivers and
	  infrastructure code to support RapidIO interconnect devices.

source "drivers/rapidio/Kconfig"

789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822
endmenu

menu "Advanced setup"
	depends on PPC32

config ADVANCED_OPTIONS
	bool "Prompt for advanced kernel configuration options"
	help
	  This option will enable prompting for a variety of advanced kernel
	  configuration options.  These options can cause the kernel to not
	  work if they are set incorrectly, but can be used to optimize certain
	  aspects of kernel memory management.

	  Unless you know what you are doing, say N here.

comment "Default settings for advanced configuration options are used"
	depends on !ADVANCED_OPTIONS

config LOWMEM_SIZE_BOOL
	bool "Set maximum low memory"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the maximum amount of memory which
	  will be used as "low memory", that is, memory which the kernel can
	  access directly, without having to set up a kernel virtual mapping.
	  This can be useful in optimizing the layout of kernel virtual
	  memory.

	  Say N here unless you know what you are doing.

config LOWMEM_SIZE
	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
	default "0x30000000"

823 824 825 826 827 828 829 830 831 832 833 834 835
config LOWMEM_CAM_NUM_BOOL
	bool "Set number of CAMs to use to map low memory"
	depends on ADVANCED_OPTIONS && FSL_BOOKE
	help
	  This option allows you to set the maximum number of CAM slots that
	  will be used to map low memory.  There are a limited number of slots
	  available and even more limited number that will fit in the L1 MMU.
	  However, using more entries will allow mapping more low memory.  This
	  can be useful in optimizing the layout of kernel virtual memory.

	  Say N here unless you know what you are doing.

config LOWMEM_CAM_NUM
836
	depends on FSL_BOOKE
837 838 839
	int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
	default 3

840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871
config RELOCATABLE
	bool "Build a relocatable kernel (EXPERIMENTAL)"
	depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
	help
	  This builds a kernel image that is capable of running at the
	  location the kernel is loaded at (some alignment restrictions may
	  exist).

	  One use is for the kexec on panic case where the recovery kernel
	  must live at a different physical address than the primary
	  kernel.

	  Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
	  it has been loaded at and the compile time physical addresses
	  CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
	  setting can still be useful to bootwrappers that need to know the
	  load location of the kernel (eg. u-boot/mkimage).

config PAGE_OFFSET_BOOL
	bool "Set custom page offset address"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the kernel virtual address at which
	  the kernel will map low memory.  This can be useful in optimizing
	  the virtual memory layout of the system.

	  Say N here unless you know what you are doing.

config PAGE_OFFSET
	hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
	default "0xc0000000"

872 873 874 875 876
config KERNEL_START_BOOL
	bool "Set custom kernel base address"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the kernel virtual address at which
877 878 879
	  the kernel will be loaded.  Normally this should match PAGE_OFFSET
	  however there are times (like kdump) that one might not want them
	  to be the same.
880 881 882 883 884

	  Say N here unless you know what you are doing.

config KERNEL_START
	hex "Virtual address of kernel base" if KERNEL_START_BOOL
885
	default PAGE_OFFSET if PAGE_OFFSET_BOOL
886
	default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
887 888
	default "0xc0000000"

889 890 891 892 893 894 895 896 897 898
config PHYSICAL_START_BOOL
	bool "Set physical address where the kernel is loaded"
	depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
	help
	  This gives the physical address where the kernel is loaded.

	  Say N here unless you know what you are doing.

config PHYSICAL_START
	hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
899
	default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
900 901 902 903
	default "0x00000000"

config PHYSICAL_ALIGN
	hex
904
	default "0x04000000" if FSL_BOOKE
905 906 907 908 909
	help
	  This value puts the alignment restrictions on physical address
	  where kernel is loaded and run from. Kernel is compiled for an
	  address which meets above alignment restriction.

910 911 912 913 914 915 916 917 918 919 920 921
config TASK_SIZE_BOOL
	bool "Set custom user task size"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the amount of virtual address space
	  allocated to user tasks.  This can be useful in optimizing the
	  virtual memory layout of the system.

	  Say N here unless you know what you are doing.

config TASK_SIZE
	hex "Size of user task space" if TASK_SIZE_BOOL
922 923
	default "0x80000000" if PPC_PREP || PPC_8xx
	default "0xc0000000"
924

925 926 927 928 929 930 931 932 933 934 935 936
config CONSISTENT_SIZE_BOOL
	bool "Set custom consistent memory pool size"
	depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
	help
	  This option allows you to set the size of the
	  consistent memory pool.  This pool of virtual memory
	  is used to make consistent memory allocations.

config CONSISTENT_SIZE
	hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
	default "0x00200000" if NOT_COHERENT_CACHE

937 938 939 940 941
config PIN_TLB
	bool "Pinned Kernel TLBs (860 ONLY)"
	depends on ADVANCED_OPTIONS && 8xx
endmenu

S
Stephen Rothwell 已提交
942
if PPC64
943 944 945 946 947 948 949 950 951 952 953 954 955
config RELOCATABLE
	bool "Build a relocatable kernel"
	help
	  This builds a kernel image that is capable of running anywhere
	  in the RMA (real memory area) at any 16k-aligned base address.
	  The kernel is linked as a position-independent executable (PIE)
	  and contains dynamic relocations which are processed early
	  in the bootup process.

	  One use is for the kexec on panic case where the recovery kernel
	  must live at a different physical address than the primary
	  kernel.

956 957 958
config PAGE_OFFSET
	hex
	default "0xc000000000000000"
S
Stephen Rothwell 已提交
959 960
config KERNEL_START
	hex
S
Stephen Rothwell 已提交
961
	default "0xc000000000000000"
962 963 964
config PHYSICAL_START
	hex
	default "0x00000000"
S
Stephen Rothwell 已提交
965 966
endif

967 968 969 970 971 972
source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

973 974
source "arch/powerpc/sysdev/qe_lib/Kconfig"

975 976 977 978 979 980 981 982 983 984 985 986
source "lib/Kconfig"

source "arch/powerpc/Kconfig.debug"

source "security/Kconfig"

config KEYS_COMPAT
	bool
	depends on COMPAT && KEYS
	default y

source "crypto/Kconfig"
987 988 989 990

config PPC_CLOCK
	bool
	default n
991
	select HAVE_CLK
992 993 994 995

config PPC_LIB_RHEAP
	bool

996
source "arch/powerpc/kvm/Kconfig"