Kconfig 25 KB

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  1. source "arch/powerpc/platforms/Kconfig.cputype"
  2. config PPC32
  3. bool
  4. default y if !PPC64
  5. config 32BIT
  6. bool
  7. default y if PPC32
  8. config 64BIT
  9. bool
  10. default y if PPC64
  11. config WORD_SIZE
  12. int
  13. default 64 if PPC64
  14. default 32 if !PPC64
  15. config ARCH_PHYS_ADDR_T_64BIT
  16. def_bool PPC64 || PHYS_64BIT
  17. config ARCH_DMA_ADDR_T_64BIT
  18. def_bool ARCH_PHYS_ADDR_T_64BIT
  19. config MMU
  20. bool
  21. default y
  22. config GENERIC_CMOS_UPDATE
  23. def_bool y
  24. config GENERIC_TIME_VSYSCALL
  25. def_bool y
  26. config GENERIC_CLOCKEVENTS
  27. def_bool y
  28. config HAVE_SETUP_PER_CPU_AREA
  29. def_bool PPC64
  30. config NEED_PER_CPU_EMBED_FIRST_CHUNK
  31. def_bool PPC64
  32. config NR_IRQS
  33. int "Number of virtual interrupt numbers"
  34. range 32 32768
  35. default "512"
  36. help
  37. This defines the number of virtual interrupt numbers the kernel
  38. can manage. Virtual interrupt numbers are what you see in
  39. /proc/interrupts. If you configure your system to have too few,
  40. drivers will fail to load or worse - handle with care.
  41. config STACKTRACE_SUPPORT
  42. bool
  43. default y
  44. config HAVE_LATENCYTOP_SUPPORT
  45. def_bool y
  46. config TRACE_IRQFLAGS_SUPPORT
  47. bool
  48. default y
  49. config LOCKDEP_SUPPORT
  50. bool
  51. default y
  52. config RWSEM_GENERIC_SPINLOCK
  53. bool
  54. config RWSEM_XCHGADD_ALGORITHM
  55. bool
  56. default y
  57. config GENERIC_LOCKBREAK
  58. bool
  59. default y
  60. depends on SMP && PREEMPT
  61. config ARCH_HAS_ILOG2_U32
  62. bool
  63. default y
  64. config ARCH_HAS_ILOG2_U64
  65. bool
  66. default y if 64BIT
  67. config GENERIC_HWEIGHT
  68. bool
  69. default y
  70. config GENERIC_GPIO
  71. bool
  72. help
  73. Generic GPIO API support
  74. config ARCH_NO_VIRT_TO_BUS
  75. def_bool PPC64
  76. config PPC
  77. bool
  78. default y
  79. select OF
  80. select OF_EARLY_FLATTREE
  81. select HAVE_FTRACE_MCOUNT_RECORD
  82. select HAVE_DYNAMIC_FTRACE
  83. select HAVE_FUNCTION_TRACER
  84. select HAVE_FUNCTION_GRAPH_TRACER
  85. select ARCH_WANT_OPTIONAL_GPIOLIB
  86. select HAVE_IDE
  87. select HAVE_IOREMAP_PROT
  88. select HAVE_EFFICIENT_UNALIGNED_ACCESS
  89. select HAVE_KPROBES
  90. select HAVE_ARCH_KGDB
  91. select HAVE_KRETPROBES
  92. select HAVE_ARCH_TRACEHOOK
  93. select HAVE_MEMBLOCK
  94. select HAVE_DMA_ATTRS
  95. select HAVE_DMA_API_DEBUG
  96. select USE_GENERIC_SMP_HELPERS if SMP
  97. select HAVE_OPROFILE
  98. select HAVE_SYSCALL_WRAPPERS if PPC64
  99. select GENERIC_ATOMIC64 if PPC32
  100. select HAVE_IRQ_WORK
  101. select HAVE_PERF_EVENTS
  102. select HAVE_REGS_AND_STACK_ACCESS_API
  103. select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
  104. select HAVE_GENERIC_HARDIRQS
  105. select HAVE_SPARSE_IRQ
  106. select IRQ_PER_CPU
  107. select GENERIC_IRQ_SHOW
  108. select GENERIC_IRQ_SHOW_LEVEL
  109. select HAVE_RCU_TABLE_FREE if SMP
  110. select HAVE_SYSCALL_TRACEPOINTS
  111. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  112. config EARLY_PRINTK
  113. bool
  114. default y
  115. config COMPAT
  116. bool
  117. default y if PPC64
  118. select COMPAT_BINFMT_ELF
  119. config SYSVIPC_COMPAT
  120. bool
  121. depends on COMPAT && SYSVIPC
  122. default y
  123. # All PPC32s use generic nvram driver through ppc_md
  124. config GENERIC_NVRAM
  125. bool
  126. default y if PPC32
  127. config SCHED_OMIT_FRAME_POINTER
  128. bool
  129. default y
  130. config ARCH_MAY_HAVE_PC_FDC
  131. bool
  132. default !PPC_PSERIES || PCI
  133. config PPC_OF
  134. def_bool y
  135. config PPC_UDBG_16550
  136. bool
  137. default n
  138. config GENERIC_TBSYNC
  139. bool
  140. default y if PPC32 && SMP
  141. default n
  142. config AUDIT_ARCH
  143. bool
  144. default y
  145. config GENERIC_BUG
  146. bool
  147. default y
  148. depends on BUG
  149. config SYS_SUPPORTS_APM_EMULATION
  150. default y if PMAC_APM_EMU
  151. bool
  152. config EPAPR_BOOT
  153. bool
  154. help
  155. Used to allow a board to specify it wants an ePAPR compliant wrapper.
  156. default n
  157. config DEFAULT_UIMAGE
  158. bool
  159. help
  160. Used to allow a board to specify it wants a uImage built by default
  161. default n
  162. config REDBOOT
  163. bool
  164. config ARCH_HIBERNATION_POSSIBLE
  165. bool
  166. default y
  167. config ARCH_SUSPEND_POSSIBLE
  168. def_bool y
  169. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
  170. (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
  171. config PPC_DCR_NATIVE
  172. bool
  173. default n
  174. config PPC_DCR_MMIO
  175. bool
  176. default n
  177. config PPC_DCR
  178. bool
  179. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  180. default y
  181. config PPC_OF_PLATFORM_PCI
  182. bool
  183. depends on PCI
  184. depends on PPC64 # not supported on 32 bits yet
  185. default n
  186. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  187. def_bool y
  188. config PPC_ADV_DEBUG_REGS
  189. bool
  190. depends on 40x || BOOKE
  191. default y
  192. config PPC_ADV_DEBUG_IACS
  193. int
  194. depends on PPC_ADV_DEBUG_REGS
  195. default 4 if 44x
  196. default 2
  197. config PPC_ADV_DEBUG_DACS
  198. int
  199. depends on PPC_ADV_DEBUG_REGS
  200. default 2
  201. config PPC_ADV_DEBUG_DVCS
  202. int
  203. depends on PPC_ADV_DEBUG_REGS
  204. default 2 if 44x
  205. default 0
  206. config PPC_ADV_DEBUG_DAC_RANGE
  207. bool
  208. depends on PPC_ADV_DEBUG_REGS && 44x
  209. default y
  210. source "init/Kconfig"
  211. source "kernel/Kconfig.freezer"
  212. source "arch/powerpc/sysdev/Kconfig"
  213. source "arch/powerpc/platforms/Kconfig"
  214. menu "Kernel options"
  215. config HIGHMEM
  216. bool "High memory support"
  217. depends on PPC32
  218. source kernel/time/Kconfig
  219. source kernel/Kconfig.hz
  220. source kernel/Kconfig.preempt
  221. source "fs/Kconfig.binfmt"
  222. config HUGETLB_PAGE_SIZE_VARIABLE
  223. bool
  224. depends on HUGETLB_PAGE
  225. default y
  226. config MATH_EMULATION
  227. bool "Math emulation"
  228. depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
  229. ---help---
  230. Some PowerPC chips designed for embedded applications do not have
  231. a floating-point unit and therefore do not implement the
  232. floating-point instructions in the PowerPC instruction set. If you
  233. say Y here, the kernel will include code to emulate a floating-point
  234. unit, which will allow programs that use floating-point
  235. instructions to run.
  236. config 8XX_MINIMAL_FPEMU
  237. bool "Minimal math emulation for 8xx"
  238. depends on 8xx && !MATH_EMULATION
  239. help
  240. Older arch/ppc kernels still emulated a few floating point
  241. instructions such as load and store, even when full math
  242. emulation is disabled. Say "Y" here if you want to preserve
  243. this behavior.
  244. It is recommended that you build a soft-float userspace instead.
  245. config IOMMU_HELPER
  246. def_bool PPC64
  247. config SWIOTLB
  248. bool "SWIOTLB support"
  249. default n
  250. select IOMMU_HELPER
  251. ---help---
  252. Support for IO bounce buffering for systems without an IOMMU.
  253. This allows us to DMA to the full physical address space on
  254. platforms where the size of a physical address is larger
  255. than the bus address. Not all platforms support this.
  256. config HOTPLUG_CPU
  257. bool "Support for enabling/disabling CPUs"
  258. depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
  259. ---help---
  260. Say Y here to be able to disable and re-enable individual
  261. CPUs at runtime on SMP machines.
  262. Say N if you are unsure.
  263. config ARCH_CPU_PROBE_RELEASE
  264. def_bool y
  265. depends on HOTPLUG_CPU
  266. config ARCH_ENABLE_MEMORY_HOTPLUG
  267. def_bool y
  268. config ARCH_HAS_WALK_MEMORY
  269. def_bool y
  270. config ARCH_ENABLE_MEMORY_HOTREMOVE
  271. def_bool y
  272. config KEXEC
  273. bool "kexec system call (EXPERIMENTAL)"
  274. depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL
  275. help
  276. kexec is a system call that implements the ability to shutdown your
  277. current kernel, and to start another kernel. It is like a reboot
  278. but it is independent of the system firmware. And like a reboot
  279. you can start any kernel with it, not just Linux.
  280. The name comes from the similarity to the exec system call.
  281. It is an ongoing process to be certain the hardware in a machine
  282. is properly shutdown, so do not be surprised if this code does not
  283. initially work for you. It may help to enable device hotplugging
  284. support. As of this writing the exact hardware interface is
  285. strongly in flux, so no good recommendation can be made.
  286. config CRASH_DUMP
  287. bool "Build a kdump crash kernel"
  288. depends on PPC64 || 6xx || FSL_BOOKE
  289. select RELOCATABLE if PPC64 || FSL_BOOKE
  290. help
  291. Build a kernel suitable for use as a kdump capture kernel.
  292. The same kernel binary can be used as production kernel and dump
  293. capture kernel.
  294. config PHYP_DUMP
  295. bool "Hypervisor-assisted dump (EXPERIMENTAL)"
  296. depends on PPC_PSERIES && EXPERIMENTAL
  297. help
  298. Hypervisor-assisted dump is meant to be a kdump replacement
  299. offering robustness and speed not possible without system
  300. hypervisor assistance.
  301. If unsure, say "N"
  302. config PPCBUG_NVRAM
  303. bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
  304. default y if PPC_PREP
  305. config IRQ_ALL_CPUS
  306. bool "Distribute interrupts on all CPUs by default"
  307. depends on SMP && !MV64360
  308. help
  309. This option gives the kernel permission to distribute IRQs across
  310. multiple CPUs. Saying N here will route all IRQs to the first
  311. CPU. Generally saying Y is safe, although some problems have been
  312. reported with SMP Power Macintoshes with this option enabled.
  313. config NUMA
  314. bool "NUMA support"
  315. depends on PPC64
  316. default y if SMP && PPC_PSERIES
  317. config NODES_SHIFT
  318. int
  319. default "8" if PPC64
  320. default "4"
  321. depends on NEED_MULTIPLE_NODES
  322. config MAX_ACTIVE_REGIONS
  323. int
  324. default "256" if PPC64
  325. default "32"
  326. config ARCH_SELECT_MEMORY_MODEL
  327. def_bool y
  328. depends on PPC64
  329. config ARCH_FLATMEM_ENABLE
  330. def_bool y
  331. depends on (PPC64 && !NUMA) || PPC32
  332. config ARCH_SPARSEMEM_ENABLE
  333. def_bool y
  334. depends on PPC64
  335. select SPARSEMEM_VMEMMAP_ENABLE
  336. config ARCH_SPARSEMEM_DEFAULT
  337. def_bool y
  338. depends on (SMP && PPC_PSERIES) || PPC_PS3
  339. config ARCH_POPULATES_NODE_MAP
  340. def_bool y
  341. config SYS_SUPPORTS_HUGETLBFS
  342. def_bool y
  343. depends on PPC_BOOK3S_64
  344. source "mm/Kconfig"
  345. config ARCH_MEMORY_PROBE
  346. def_bool y
  347. depends on MEMORY_HOTPLUG
  348. # Some NUMA nodes have memory ranges that span
  349. # other nodes. Even though a pfn is valid and
  350. # between a node's start and end pfns, it may not
  351. # reside on that node. See memmap_init_zone()
  352. # for details.
  353. config NODES_SPAN_OTHER_NODES
  354. def_bool y
  355. depends on NEED_MULTIPLE_NODES
  356. config PPC_HAS_HASH_64K
  357. bool
  358. depends on PPC64
  359. default n
  360. config STDBINUTILS
  361. bool "Using standard binutils settings"
  362. depends on 44x
  363. default y
  364. help
  365. Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
  366. Note, that kernel will be able to run only those applications,
  367. which had been compiled using binutils later than 2.17.50.0.3 with
  368. '-zmax-page-size' set to 256K (the default is 64K). Or, if using
  369. the older binutils, you can patch them with a trivial patch, which
  370. changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
  371. choice
  372. prompt "Page size"
  373. default PPC_4K_PAGES
  374. help
  375. Select the kernel logical page size. Increasing the page size
  376. will reduce software overhead at each page boundary, allow
  377. hardware prefetch mechanisms to be more effective, and allow
  378. larger dma transfers increasing IO efficiency and reducing
  379. overhead. However the utilization of memory will increase.
  380. For example, each cached file will using a multiple of the
  381. page size to hold its contents and the difference between the
  382. end of file and the end of page is wasted.
  383. Some dedicated systems, such as software raid serving with
  384. accelerated calculations, have shown significant increases.
  385. If you configure a 64 bit kernel for 64k pages but the
  386. processor does not support them, then the kernel will simulate
  387. them with 4k pages, loading them on demand, but with the
  388. reduced software overhead and larger internal fragmentation.
  389. For the 32 bit kernel, a large page option will not be offered
  390. unless it is supported by the configured processor.
  391. If unsure, choose 4K_PAGES.
  392. config PPC_4K_PAGES
  393. bool "4k page size"
  394. config PPC_16K_PAGES
  395. bool "16k page size" if 44x
  396. config PPC_64K_PAGES
  397. bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
  398. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  399. config PPC_256K_PAGES
  400. bool "256k page size" if 44x
  401. depends on !STDBINUTILS
  402. help
  403. Make the page size 256k.
  404. As the ELF standard only requires alignment to support page
  405. sizes up to 64k, you will need to compile all of your user
  406. space applications with a non-standard binutils settings
  407. (see the STDBINUTILS description for details).
  408. Say N unless you know what you are doing.
  409. endchoice
  410. config FORCE_MAX_ZONEORDER
  411. int "Maximum zone order"
  412. range 9 64 if PPC64 && PPC_64K_PAGES
  413. default "9" if PPC64 && PPC_64K_PAGES
  414. range 13 64 if PPC64 && !PPC_64K_PAGES
  415. default "13" if PPC64 && !PPC_64K_PAGES
  416. range 9 64 if PPC32 && PPC_16K_PAGES
  417. default "9" if PPC32 && PPC_16K_PAGES
  418. range 7 64 if PPC32 && PPC_64K_PAGES
  419. default "7" if PPC32 && PPC_64K_PAGES
  420. range 5 64 if PPC32 && PPC_256K_PAGES
  421. default "5" if PPC32 && PPC_256K_PAGES
  422. range 11 64
  423. default "11"
  424. help
  425. The kernel memory allocator divides physically contiguous memory
  426. blocks into "zones", where each zone is a power of two number of
  427. pages. This option selects the largest power of two that the kernel
  428. keeps in the memory allocator. If you need to allocate very large
  429. blocks of physically contiguous memory, then you may need to
  430. increase this value.
  431. This config option is actually maximum order plus one. For example,
  432. a value of 11 means that the largest free memory block is 2^10 pages.
  433. The page size is not necessarily 4KB. For example, on 64-bit
  434. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  435. this in mind when choosing a value for this option.
  436. config PPC_SUBPAGE_PROT
  437. bool "Support setting protections for 4k subpages"
  438. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  439. help
  440. This option adds support for a system call to allow user programs
  441. to set access permissions (read/write, readonly, or no access)
  442. on the 4k subpages of each 64k page.
  443. config SCHED_SMT
  444. bool "SMT (Hyperthreading) scheduler support"
  445. depends on PPC64 && SMP
  446. help
  447. SMT scheduler support improves the CPU scheduler's decision making
  448. when dealing with POWER5 cpus at a cost of slightly increased
  449. overhead in some places. If unsure say N here.
  450. config CMDLINE_BOOL
  451. bool "Default bootloader kernel arguments"
  452. config CMDLINE
  453. string "Initial kernel command string"
  454. depends on CMDLINE_BOOL
  455. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  456. help
  457. On some platforms, there is currently no way for the boot loader to
  458. pass arguments to the kernel. For these platforms, you can supply
  459. some command-line options at build time by entering them here. In
  460. most cases you will need to specify the root device here.
  461. config EXTRA_TARGETS
  462. string "Additional default image types"
  463. help
  464. List additional targets to be built by the bootwrapper here (separated
  465. by spaces). This is useful for targets that depend of device tree
  466. files in the .dts directory.
  467. Targets in this list will be build as part of the default build
  468. target, or when the user does a 'make zImage' or a
  469. 'make zImage.initrd'.
  470. If unsure, leave blank
  471. config ARCH_WANTS_FREEZER_CONTROL
  472. def_bool y
  473. depends on ADB_PMU
  474. source kernel/power/Kconfig
  475. config SECCOMP
  476. bool "Enable seccomp to safely compute untrusted bytecode"
  477. depends on PROC_FS
  478. default y
  479. help
  480. This kernel feature is useful for number crunching applications
  481. that may need to compute untrusted bytecode during their
  482. execution. By using pipes or other transports made available to
  483. the process as file descriptors supporting the read/write
  484. syscalls, it's possible to isolate those applications in
  485. their own address space using seccomp. Once seccomp is
  486. enabled via /proc/<pid>/seccomp, it cannot be disabled
  487. and the task is only allowed to execute a few safe syscalls
  488. defined by each seccomp mode.
  489. If unsure, say Y. Only embedded should say N here.
  490. endmenu
  491. config ISA_DMA_API
  492. bool
  493. default !PPC_ISERIES || PCI
  494. menu "Bus options"
  495. config ISA
  496. bool "Support for ISA-bus hardware"
  497. depends on PPC_PREP || PPC_CHRP
  498. select PPC_I8259
  499. help
  500. Find out whether you have ISA slots on your motherboard. ISA is the
  501. name of a bus system, i.e. the way the CPU talks to the other stuff
  502. inside your box. If you have an Apple machine, say N here; if you
  503. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  504. you have an embedded board, consult your board documentation.
  505. config ZONE_DMA
  506. bool
  507. default y
  508. config NEED_DMA_MAP_STATE
  509. def_bool (PPC64 || NOT_COHERENT_CACHE)
  510. config NEED_SG_DMA_LENGTH
  511. def_bool y
  512. config GENERIC_ISA_DMA
  513. bool
  514. depends on ISA_DMA_API
  515. default y
  516. config PPC_INDIRECT_PCI
  517. bool
  518. depends on PCI
  519. default y if 40x || 44x
  520. default n
  521. config EISA
  522. bool
  523. config SBUS
  524. bool
  525. config FSL_SOC
  526. bool
  527. config FSL_PCI
  528. bool
  529. select PPC_INDIRECT_PCI
  530. select PCI_QUIRKS
  531. config FSL_PMC
  532. bool
  533. default y
  534. depends on SUSPEND && (PPC_85xx || PPC_86xx)
  535. help
  536. Freescale MPC85xx/MPC86xx power management controller support
  537. (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
  538. config PPC4xx_CPM
  539. bool
  540. default y
  541. depends on SUSPEND && (44x || 40x)
  542. help
  543. PPC4xx Clock Power Management (CPM) support (suspend/resume).
  544. It also enables support for two different idle states (idle-wait
  545. and idle-doze).
  546. config 4xx_SOC
  547. bool
  548. config FSL_LBC
  549. bool "Freescale Local Bus support"
  550. depends on FSL_SOC
  551. help
  552. Enables reporting of errors from the Freescale local bus
  553. controller. Also contains some common code used by
  554. drivers for specific local bus peripherals.
  555. config FSL_GTM
  556. bool
  557. depends on PPC_83xx || QUICC_ENGINE || CPM2
  558. help
  559. Freescale General-purpose Timers support
  560. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  561. config MCA
  562. bool
  563. # Platforms that what PCI turned unconditionally just do select PCI
  564. # in their config node. Platforms that want to choose at config
  565. # time should select PPC_PCI_CHOICE
  566. config PPC_PCI_CHOICE
  567. bool
  568. config PCI
  569. bool "PCI support" if PPC_PCI_CHOICE
  570. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  571. && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
  572. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  573. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  574. select ARCH_SUPPORTS_MSI
  575. help
  576. Find out whether your system includes a PCI bus. PCI is the name of
  577. a bus system, i.e. the way the CPU talks to the other stuff inside
  578. your box. If you say Y here, the kernel will include drivers and
  579. infrastructure code to support PCI bus devices.
  580. config PCI_DOMAINS
  581. def_bool PCI
  582. config PCI_SYSCALL
  583. def_bool PCI
  584. config PCI_QSPAN
  585. bool "QSpan PCI"
  586. depends on !4xx && !CPM2 && 8xx
  587. select PPC_I8259
  588. help
  589. Say Y here if you have a system based on a Motorola 8xx-series
  590. embedded processor with a QSPAN PCI interface, otherwise say N.
  591. config PCI_8260
  592. bool
  593. depends on PCI && 8260
  594. select PPC_INDIRECT_PCI
  595. default y
  596. config 8260_PCI9
  597. bool "Enable workaround for MPC826x erratum PCI 9"
  598. depends on PCI_8260 && !8272
  599. default y
  600. choice
  601. prompt "IDMA channel for PCI 9 workaround"
  602. depends on 8260_PCI9
  603. config 8260_PCI9_IDMA1
  604. bool "IDMA1"
  605. config 8260_PCI9_IDMA2
  606. bool "IDMA2"
  607. config 8260_PCI9_IDMA3
  608. bool "IDMA3"
  609. config 8260_PCI9_IDMA4
  610. bool "IDMA4"
  611. endchoice
  612. source "drivers/pci/pcie/Kconfig"
  613. source "drivers/pci/Kconfig"
  614. source "drivers/pcmcia/Kconfig"
  615. source "drivers/pci/hotplug/Kconfig"
  616. config HAS_RAPIDIO
  617. bool
  618. default n
  619. config RAPIDIO
  620. bool "RapidIO support"
  621. depends on HAS_RAPIDIO || PCI
  622. help
  623. If you say Y here, the kernel will include drivers and
  624. infrastructure code to support RapidIO interconnect devices.
  625. config FSL_RIO
  626. bool "Freescale Embedded SRIO Controller support"
  627. depends on RAPIDIO && HAS_RAPIDIO
  628. default "n"
  629. ---help---
  630. Include support for RapidIO controller on Freescale embedded
  631. processors (MPC8548, MPC8641, etc).
  632. source "drivers/rapidio/Kconfig"
  633. endmenu
  634. menu "Advanced setup"
  635. depends on PPC32
  636. config ADVANCED_OPTIONS
  637. bool "Prompt for advanced kernel configuration options"
  638. help
  639. This option will enable prompting for a variety of advanced kernel
  640. configuration options. These options can cause the kernel to not
  641. work if they are set incorrectly, but can be used to optimize certain
  642. aspects of kernel memory management.
  643. Unless you know what you are doing, say N here.
  644. comment "Default settings for advanced configuration options are used"
  645. depends on !ADVANCED_OPTIONS
  646. config LOWMEM_SIZE_BOOL
  647. bool "Set maximum low memory"
  648. depends on ADVANCED_OPTIONS
  649. help
  650. This option allows you to set the maximum amount of memory which
  651. will be used as "low memory", that is, memory which the kernel can
  652. access directly, without having to set up a kernel virtual mapping.
  653. This can be useful in optimizing the layout of kernel virtual
  654. memory.
  655. Say N here unless you know what you are doing.
  656. config LOWMEM_SIZE
  657. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  658. default "0x30000000"
  659. config LOWMEM_CAM_NUM_BOOL
  660. bool "Set number of CAMs to use to map low memory"
  661. depends on ADVANCED_OPTIONS && FSL_BOOKE
  662. help
  663. This option allows you to set the maximum number of CAM slots that
  664. will be used to map low memory. There are a limited number of slots
  665. available and even more limited number that will fit in the L1 MMU.
  666. However, using more entries will allow mapping more low memory. This
  667. can be useful in optimizing the layout of kernel virtual memory.
  668. Say N here unless you know what you are doing.
  669. config LOWMEM_CAM_NUM
  670. depends on FSL_BOOKE
  671. int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
  672. default 3
  673. config RELOCATABLE
  674. bool "Build a relocatable kernel (EXPERIMENTAL)"
  675. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  676. help
  677. This builds a kernel image that is capable of running at the
  678. location the kernel is loaded at (some alignment restrictions may
  679. exist).
  680. One use is for the kexec on panic case where the recovery kernel
  681. must live at a different physical address than the primary
  682. kernel.
  683. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  684. it has been loaded at and the compile time physical addresses
  685. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  686. setting can still be useful to bootwrappers that need to know the
  687. load location of the kernel (eg. u-boot/mkimage).
  688. config PAGE_OFFSET_BOOL
  689. bool "Set custom page offset address"
  690. depends on ADVANCED_OPTIONS
  691. help
  692. This option allows you to set the kernel virtual address at which
  693. the kernel will map low memory. This can be useful in optimizing
  694. the virtual memory layout of the system.
  695. Say N here unless you know what you are doing.
  696. config PAGE_OFFSET
  697. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  698. default "0xc0000000"
  699. config KERNEL_START_BOOL
  700. bool "Set custom kernel base address"
  701. depends on ADVANCED_OPTIONS
  702. help
  703. This option allows you to set the kernel virtual address at which
  704. the kernel will be loaded. Normally this should match PAGE_OFFSET
  705. however there are times (like kdump) that one might not want them
  706. to be the same.
  707. Say N here unless you know what you are doing.
  708. config KERNEL_START
  709. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  710. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  711. default "0xc2000000" if CRASH_DUMP && !RELOCATABLE
  712. default "0xc0000000"
  713. config PHYSICAL_START_BOOL
  714. bool "Set physical address where the kernel is loaded"
  715. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  716. help
  717. This gives the physical address where the kernel is loaded.
  718. Say N here unless you know what you are doing.
  719. config PHYSICAL_START
  720. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  721. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE
  722. default "0x00000000"
  723. config PHYSICAL_ALIGN
  724. hex
  725. default "0x04000000" if FSL_BOOKE
  726. help
  727. This value puts the alignment restrictions on physical address
  728. where kernel is loaded and run from. Kernel is compiled for an
  729. address which meets above alignment restriction.
  730. config TASK_SIZE_BOOL
  731. bool "Set custom user task size"
  732. depends on ADVANCED_OPTIONS
  733. help
  734. This option allows you to set the amount of virtual address space
  735. allocated to user tasks. This can be useful in optimizing the
  736. virtual memory layout of the system.
  737. Say N here unless you know what you are doing.
  738. config TASK_SIZE
  739. hex "Size of user task space" if TASK_SIZE_BOOL
  740. default "0x80000000" if PPC_PREP || PPC_8xx
  741. default "0xc0000000"
  742. config CONSISTENT_SIZE_BOOL
  743. bool "Set custom consistent memory pool size"
  744. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  745. help
  746. This option allows you to set the size of the
  747. consistent memory pool. This pool of virtual memory
  748. is used to make consistent memory allocations.
  749. config CONSISTENT_SIZE
  750. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  751. default "0x00200000" if NOT_COHERENT_CACHE
  752. config PIN_TLB
  753. bool "Pinned Kernel TLBs (860 ONLY)"
  754. depends on ADVANCED_OPTIONS && 8xx
  755. endmenu
  756. if PPC64
  757. config RELOCATABLE
  758. bool "Build a relocatable kernel"
  759. help
  760. This builds a kernel image that is capable of running anywhere
  761. in the RMA (real memory area) at any 16k-aligned base address.
  762. The kernel is linked as a position-independent executable (PIE)
  763. and contains dynamic relocations which are processed early
  764. in the bootup process.
  765. One use is for the kexec on panic case where the recovery kernel
  766. must live at a different physical address than the primary
  767. kernel.
  768. config PAGE_OFFSET
  769. hex
  770. default "0xc000000000000000"
  771. config KERNEL_START
  772. hex
  773. default "0xc000000000000000"
  774. config PHYSICAL_START
  775. hex
  776. default "0x00000000"
  777. endif
  778. source "net/Kconfig"
  779. source "drivers/Kconfig"
  780. source "fs/Kconfig"
  781. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  782. source "lib/Kconfig"
  783. source "arch/powerpc/Kconfig.debug"
  784. source "security/Kconfig"
  785. config KEYS_COMPAT
  786. bool
  787. depends on COMPAT && KEYS
  788. default y
  789. source "crypto/Kconfig"
  790. config PPC_CLOCK
  791. bool
  792. default n
  793. select HAVE_CLK
  794. config PPC_LIB_RHEAP
  795. bool
  796. source "arch/powerpc/kvm/Kconfig"