Kconfig 26 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 ARCH_HAS_CPU_IDLE_WAIT
  68. bool
  69. default y
  70. config GENERIC_HWEIGHT
  71. bool
  72. default y
  73. config GENERIC_GPIO
  74. bool
  75. help
  76. Generic GPIO API support
  77. config ARCH_NO_VIRT_TO_BUS
  78. def_bool PPC64
  79. config PPC
  80. bool
  81. default y
  82. select OF
  83. select OF_EARLY_FLATTREE
  84. select HAVE_FTRACE_MCOUNT_RECORD
  85. select HAVE_DYNAMIC_FTRACE
  86. select HAVE_FUNCTION_TRACER
  87. select HAVE_FUNCTION_GRAPH_TRACER
  88. select ARCH_WANT_OPTIONAL_GPIOLIB
  89. select HAVE_IDE
  90. select HAVE_IOREMAP_PROT
  91. select HAVE_EFFICIENT_UNALIGNED_ACCESS
  92. select HAVE_KPROBES
  93. select HAVE_ARCH_KGDB
  94. select HAVE_KRETPROBES
  95. select HAVE_ARCH_TRACEHOOK
  96. select HAVE_MEMBLOCK
  97. select HAVE_MEMBLOCK_NODE_MAP
  98. select HAVE_DMA_ATTRS
  99. select HAVE_DMA_API_DEBUG
  100. select USE_GENERIC_SMP_HELPERS if SMP
  101. select HAVE_OPROFILE
  102. select HAVE_SYSCALL_WRAPPERS if PPC64
  103. select GENERIC_ATOMIC64 if PPC32
  104. select HAVE_IRQ_WORK
  105. select HAVE_PERF_EVENTS
  106. select HAVE_REGS_AND_STACK_ACCESS_API
  107. select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
  108. select HAVE_GENERIC_HARDIRQS
  109. select SPARSE_IRQ
  110. select IRQ_PER_CPU
  111. select IRQ_DOMAIN
  112. select GENERIC_IRQ_SHOW
  113. select GENERIC_IRQ_SHOW_LEVEL
  114. select IRQ_FORCED_THREADING
  115. select HAVE_RCU_TABLE_FREE if SMP
  116. select HAVE_SYSCALL_TRACEPOINTS
  117. select HAVE_BPF_JIT if (PPC64 && NET)
  118. select HAVE_ARCH_JUMP_LABEL
  119. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  120. select GENERIC_SMP_IDLE_THREAD
  121. select HAVE_GENERIC_INIT_TASK
  122. config EARLY_PRINTK
  123. bool
  124. default y
  125. config COMPAT
  126. bool
  127. default y if PPC64
  128. select COMPAT_BINFMT_ELF
  129. select ARCH_WANT_OLD_COMPAT_IPC
  130. config SYSVIPC_COMPAT
  131. bool
  132. depends on COMPAT && SYSVIPC
  133. default y
  134. # All PPC32s use generic nvram driver through ppc_md
  135. config GENERIC_NVRAM
  136. bool
  137. default y if PPC32
  138. config SCHED_OMIT_FRAME_POINTER
  139. bool
  140. default y
  141. config ARCH_MAY_HAVE_PC_FDC
  142. bool
  143. default !PPC_PSERIES || PCI
  144. config PPC_OF
  145. def_bool y
  146. config PPC_UDBG_16550
  147. bool
  148. default n
  149. config GENERIC_TBSYNC
  150. bool
  151. default y if PPC32 && SMP
  152. default n
  153. config AUDIT_ARCH
  154. bool
  155. default y
  156. config GENERIC_BUG
  157. bool
  158. default y
  159. depends on BUG
  160. config SYS_SUPPORTS_APM_EMULATION
  161. default y if PMAC_APM_EMU
  162. bool
  163. config EPAPR_BOOT
  164. bool
  165. help
  166. Used to allow a board to specify it wants an ePAPR compliant wrapper.
  167. default n
  168. config DEFAULT_UIMAGE
  169. bool
  170. help
  171. Used to allow a board to specify it wants a uImage built by default
  172. default n
  173. config REDBOOT
  174. bool
  175. config ARCH_HIBERNATION_POSSIBLE
  176. bool
  177. default y
  178. config ARCH_SUSPEND_POSSIBLE
  179. def_bool y
  180. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
  181. (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
  182. config PPC_DCR_NATIVE
  183. bool
  184. default n
  185. config PPC_DCR_MMIO
  186. bool
  187. default n
  188. config PPC_DCR
  189. bool
  190. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  191. default y
  192. config PPC_OF_PLATFORM_PCI
  193. bool
  194. depends on PCI
  195. depends on PPC64 # not supported on 32 bits yet
  196. default n
  197. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  198. def_bool y
  199. config PPC_ADV_DEBUG_REGS
  200. bool
  201. depends on 40x || BOOKE
  202. default y
  203. config PPC_ADV_DEBUG_IACS
  204. int
  205. depends on PPC_ADV_DEBUG_REGS
  206. default 4 if 44x
  207. default 2
  208. config PPC_ADV_DEBUG_DACS
  209. int
  210. depends on PPC_ADV_DEBUG_REGS
  211. default 2
  212. config PPC_ADV_DEBUG_DVCS
  213. int
  214. depends on PPC_ADV_DEBUG_REGS
  215. default 2 if 44x
  216. default 0
  217. config PPC_ADV_DEBUG_DAC_RANGE
  218. bool
  219. depends on PPC_ADV_DEBUG_REGS && 44x
  220. default y
  221. source "init/Kconfig"
  222. source "kernel/Kconfig.freezer"
  223. source "arch/powerpc/sysdev/Kconfig"
  224. source "arch/powerpc/platforms/Kconfig"
  225. menu "Kernel options"
  226. config HIGHMEM
  227. bool "High memory support"
  228. depends on PPC32
  229. source kernel/time/Kconfig
  230. source kernel/Kconfig.hz
  231. source kernel/Kconfig.preempt
  232. source "fs/Kconfig.binfmt"
  233. config HUGETLB_PAGE_SIZE_VARIABLE
  234. bool
  235. depends on HUGETLB_PAGE
  236. default y
  237. config MATH_EMULATION
  238. bool "Math emulation"
  239. depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
  240. ---help---
  241. Some PowerPC chips designed for embedded applications do not have
  242. a floating-point unit and therefore do not implement the
  243. floating-point instructions in the PowerPC instruction set. If you
  244. say Y here, the kernel will include code to emulate a floating-point
  245. unit, which will allow programs that use floating-point
  246. instructions to run.
  247. config 8XX_MINIMAL_FPEMU
  248. bool "Minimal math emulation for 8xx"
  249. depends on 8xx && !MATH_EMULATION
  250. help
  251. Older arch/ppc kernels still emulated a few floating point
  252. instructions such as load and store, even when full math
  253. emulation is disabled. Say "Y" here if you want to preserve
  254. this behavior.
  255. It is recommended that you build a soft-float userspace instead.
  256. config IOMMU_HELPER
  257. def_bool PPC64
  258. config SWIOTLB
  259. bool "SWIOTLB support"
  260. default n
  261. select IOMMU_HELPER
  262. ---help---
  263. Support for IO bounce buffering for systems without an IOMMU.
  264. This allows us to DMA to the full physical address space on
  265. platforms where the size of a physical address is larger
  266. than the bus address. Not all platforms support this.
  267. config HOTPLUG_CPU
  268. bool "Support for enabling/disabling CPUs"
  269. depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
  270. ---help---
  271. Say Y here to be able to disable and re-enable individual
  272. CPUs at runtime on SMP machines.
  273. Say N if you are unsure.
  274. config ARCH_CPU_PROBE_RELEASE
  275. def_bool y
  276. depends on HOTPLUG_CPU
  277. config ARCH_ENABLE_MEMORY_HOTPLUG
  278. def_bool y
  279. config ARCH_HAS_WALK_MEMORY
  280. def_bool y
  281. config ARCH_ENABLE_MEMORY_HOTREMOVE
  282. def_bool y
  283. config KEXEC
  284. bool "kexec system call (EXPERIMENTAL)"
  285. depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
  286. help
  287. kexec is a system call that implements the ability to shutdown your
  288. current kernel, and to start another kernel. It is like a reboot
  289. but it is independent of the system firmware. And like a reboot
  290. you can start any kernel with it, not just Linux.
  291. The name comes from the similarity to the exec system call.
  292. It is an ongoing process to be certain the hardware in a machine
  293. is properly shutdown, so do not be surprised if this code does not
  294. initially work for you. It may help to enable device hotplugging
  295. support. As of this writing the exact hardware interface is
  296. strongly in flux, so no good recommendation can be made.
  297. config CRASH_DUMP
  298. bool "Build a kdump crash kernel"
  299. depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
  300. select RELOCATABLE if PPC64 || 44x
  301. select DYNAMIC_MEMSTART if FSL_BOOKE
  302. help
  303. Build a kernel suitable for use as a kdump capture kernel.
  304. The same kernel binary can be used as production kernel and dump
  305. capture kernel.
  306. config FA_DUMP
  307. bool "Firmware-assisted dump"
  308. depends on PPC64 && PPC_RTAS && CRASH_DUMP
  309. help
  310. A robust mechanism to get reliable kernel crash dump with
  311. assistance from firmware. This approach does not use kexec,
  312. instead firmware assists in booting the kdump kernel
  313. while preserving memory contents. Firmware-assisted dump
  314. is meant to be a kdump replacement offering robustness and
  315. speed not possible without system firmware assistance.
  316. If unsure, say "N"
  317. config IRQ_ALL_CPUS
  318. bool "Distribute interrupts on all CPUs by default"
  319. depends on SMP && !MV64360
  320. help
  321. This option gives the kernel permission to distribute IRQs across
  322. multiple CPUs. Saying N here will route all IRQs to the first
  323. CPU. Generally saying Y is safe, although some problems have been
  324. reported with SMP Power Macintoshes with this option enabled.
  325. config NUMA
  326. bool "NUMA support"
  327. depends on PPC64
  328. default y if SMP && PPC_PSERIES
  329. config NODES_SHIFT
  330. int
  331. default "8" if PPC64
  332. default "4"
  333. depends on NEED_MULTIPLE_NODES
  334. config MAX_ACTIVE_REGIONS
  335. int
  336. default "256" if PPC64
  337. default "32"
  338. config ARCH_SELECT_MEMORY_MODEL
  339. def_bool y
  340. depends on PPC64
  341. config ARCH_FLATMEM_ENABLE
  342. def_bool y
  343. depends on (PPC64 && !NUMA) || PPC32
  344. config ARCH_SPARSEMEM_ENABLE
  345. def_bool y
  346. depends on PPC64
  347. select SPARSEMEM_VMEMMAP_ENABLE
  348. config ARCH_SPARSEMEM_DEFAULT
  349. def_bool y
  350. depends on (SMP && PPC_PSERIES) || PPC_PS3
  351. config SYS_SUPPORTS_HUGETLBFS
  352. bool
  353. source "mm/Kconfig"
  354. config ARCH_MEMORY_PROBE
  355. def_bool y
  356. depends on MEMORY_HOTPLUG
  357. # Some NUMA nodes have memory ranges that span
  358. # other nodes. Even though a pfn is valid and
  359. # between a node's start and end pfns, it may not
  360. # reside on that node. See memmap_init_zone()
  361. # for details.
  362. config NODES_SPAN_OTHER_NODES
  363. def_bool y
  364. depends on NEED_MULTIPLE_NODES
  365. config PPC_HAS_HASH_64K
  366. bool
  367. depends on PPC64
  368. default n
  369. config STDBINUTILS
  370. bool "Using standard binutils settings"
  371. depends on 44x
  372. default y
  373. help
  374. Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
  375. Note, that kernel will be able to run only those applications,
  376. which had been compiled using binutils later than 2.17.50.0.3 with
  377. '-zmax-page-size' set to 256K (the default is 64K). Or, if using
  378. the older binutils, you can patch them with a trivial patch, which
  379. changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
  380. choice
  381. prompt "Page size"
  382. default PPC_4K_PAGES
  383. help
  384. Select the kernel logical page size. Increasing the page size
  385. will reduce software overhead at each page boundary, allow
  386. hardware prefetch mechanisms to be more effective, and allow
  387. larger dma transfers increasing IO efficiency and reducing
  388. overhead. However the utilization of memory will increase.
  389. For example, each cached file will using a multiple of the
  390. page size to hold its contents and the difference between the
  391. end of file and the end of page is wasted.
  392. Some dedicated systems, such as software raid serving with
  393. accelerated calculations, have shown significant increases.
  394. If you configure a 64 bit kernel for 64k pages but the
  395. processor does not support them, then the kernel will simulate
  396. them with 4k pages, loading them on demand, but with the
  397. reduced software overhead and larger internal fragmentation.
  398. For the 32 bit kernel, a large page option will not be offered
  399. unless it is supported by the configured processor.
  400. If unsure, choose 4K_PAGES.
  401. config PPC_4K_PAGES
  402. bool "4k page size"
  403. config PPC_16K_PAGES
  404. bool "16k page size" if 44x
  405. config PPC_64K_PAGES
  406. bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
  407. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  408. config PPC_256K_PAGES
  409. bool "256k page size" if 44x
  410. depends on !STDBINUTILS
  411. help
  412. Make the page size 256k.
  413. As the ELF standard only requires alignment to support page
  414. sizes up to 64k, you will need to compile all of your user
  415. space applications with a non-standard binutils settings
  416. (see the STDBINUTILS description for details).
  417. Say N unless you know what you are doing.
  418. endchoice
  419. config FORCE_MAX_ZONEORDER
  420. int "Maximum zone order"
  421. range 9 64 if PPC64 && PPC_64K_PAGES
  422. default "9" if PPC64 && PPC_64K_PAGES
  423. range 13 64 if PPC64 && !PPC_64K_PAGES
  424. default "13" if PPC64 && !PPC_64K_PAGES
  425. range 9 64 if PPC32 && PPC_16K_PAGES
  426. default "9" if PPC32 && PPC_16K_PAGES
  427. range 7 64 if PPC32 && PPC_64K_PAGES
  428. default "7" if PPC32 && PPC_64K_PAGES
  429. range 5 64 if PPC32 && PPC_256K_PAGES
  430. default "5" if PPC32 && PPC_256K_PAGES
  431. range 11 64
  432. default "11"
  433. help
  434. The kernel memory allocator divides physically contiguous memory
  435. blocks into "zones", where each zone is a power of two number of
  436. pages. This option selects the largest power of two that the kernel
  437. keeps in the memory allocator. If you need to allocate very large
  438. blocks of physically contiguous memory, then you may need to
  439. increase this value.
  440. This config option is actually maximum order plus one. For example,
  441. a value of 11 means that the largest free memory block is 2^10 pages.
  442. The page size is not necessarily 4KB. For example, on 64-bit
  443. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  444. this in mind when choosing a value for this option.
  445. config PPC_SUBPAGE_PROT
  446. bool "Support setting protections for 4k subpages"
  447. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  448. help
  449. This option adds support for a system call to allow user programs
  450. to set access permissions (read/write, readonly, or no access)
  451. on the 4k subpages of each 64k page.
  452. config SCHED_SMT
  453. bool "SMT (Hyperthreading) scheduler support"
  454. depends on PPC64 && SMP
  455. help
  456. SMT scheduler support improves the CPU scheduler's decision making
  457. when dealing with POWER5 cpus at a cost of slightly increased
  458. overhead in some places. If unsure say N here.
  459. config CMDLINE_BOOL
  460. bool "Default bootloader kernel arguments"
  461. config CMDLINE
  462. string "Initial kernel command string"
  463. depends on CMDLINE_BOOL
  464. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  465. help
  466. On some platforms, there is currently no way for the boot loader to
  467. pass arguments to the kernel. For these platforms, you can supply
  468. some command-line options at build time by entering them here. In
  469. most cases you will need to specify the root device here.
  470. config EXTRA_TARGETS
  471. string "Additional default image types"
  472. help
  473. List additional targets to be built by the bootwrapper here (separated
  474. by spaces). This is useful for targets that depend of device tree
  475. files in the .dts directory.
  476. Targets in this list will be build as part of the default build
  477. target, or when the user does a 'make zImage' or a
  478. 'make zImage.initrd'.
  479. If unsure, leave blank
  480. config ARCH_WANTS_FREEZER_CONTROL
  481. def_bool y
  482. depends on ADB_PMU
  483. source kernel/power/Kconfig
  484. config SECCOMP
  485. bool "Enable seccomp to safely compute untrusted bytecode"
  486. depends on PROC_FS
  487. default y
  488. help
  489. This kernel feature is useful for number crunching applications
  490. that may need to compute untrusted bytecode during their
  491. execution. By using pipes or other transports made available to
  492. the process as file descriptors supporting the read/write
  493. syscalls, it's possible to isolate those applications in
  494. their own address space using seccomp. Once seccomp is
  495. enabled via /proc/<pid>/seccomp, it cannot be disabled
  496. and the task is only allowed to execute a few safe syscalls
  497. defined by each seccomp mode.
  498. If unsure, say Y. Only embedded should say N here.
  499. endmenu
  500. config ISA_DMA_API
  501. bool
  502. default PCI
  503. menu "Bus options"
  504. config ISA
  505. bool "Support for ISA-bus hardware"
  506. depends on PPC_PREP || PPC_CHRP
  507. select PPC_I8259
  508. help
  509. Find out whether you have ISA slots on your motherboard. ISA is the
  510. name of a bus system, i.e. the way the CPU talks to the other stuff
  511. inside your box. If you have an Apple machine, say N here; if you
  512. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  513. you have an embedded board, consult your board documentation.
  514. config ZONE_DMA
  515. bool
  516. default y
  517. config NEED_DMA_MAP_STATE
  518. def_bool (PPC64 || NOT_COHERENT_CACHE)
  519. config NEED_SG_DMA_LENGTH
  520. def_bool y
  521. config GENERIC_ISA_DMA
  522. bool
  523. depends on ISA_DMA_API
  524. default y
  525. config PPC_INDIRECT_PCI
  526. bool
  527. depends on PCI
  528. default y if 40x || 44x
  529. default n
  530. config EISA
  531. bool
  532. config SBUS
  533. bool
  534. config FSL_SOC
  535. bool
  536. select HAVE_CAN_FLEXCAN if NET && CAN
  537. select PPC_CLOCK if CAN_FLEXCAN
  538. config FSL_PCI
  539. bool
  540. select PPC_INDIRECT_PCI
  541. select PCI_QUIRKS
  542. config FSL_PMC
  543. bool
  544. default y
  545. depends on SUSPEND && (PPC_85xx || PPC_86xx)
  546. help
  547. Freescale MPC85xx/MPC86xx power management controller support
  548. (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
  549. config PPC4xx_CPM
  550. bool
  551. default y
  552. depends on SUSPEND && (44x || 40x)
  553. help
  554. PPC4xx Clock Power Management (CPM) support (suspend/resume).
  555. It also enables support for two different idle states (idle-wait
  556. and idle-doze).
  557. config 4xx_SOC
  558. bool
  559. config FSL_LBC
  560. bool "Freescale Local Bus support"
  561. depends on FSL_SOC
  562. help
  563. Enables reporting of errors from the Freescale local bus
  564. controller. Also contains some common code used by
  565. drivers for specific local bus peripherals.
  566. config FSL_IFC
  567. bool
  568. depends on FSL_SOC
  569. config FSL_GTM
  570. bool
  571. depends on PPC_83xx || QUICC_ENGINE || CPM2
  572. help
  573. Freescale General-purpose Timers support
  574. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  575. config MCA
  576. bool
  577. # Platforms that what PCI turned unconditionally just do select PCI
  578. # in their config node. Platforms that want to choose at config
  579. # time should select PPC_PCI_CHOICE
  580. config PPC_PCI_CHOICE
  581. bool
  582. config PCI
  583. bool "PCI support" if PPC_PCI_CHOICE
  584. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  585. && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
  586. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  587. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  588. select ARCH_SUPPORTS_MSI
  589. select GENERIC_PCI_IOMAP
  590. help
  591. Find out whether your system includes a PCI bus. PCI is the name of
  592. a bus system, i.e. the way the CPU talks to the other stuff inside
  593. your box. If you say Y here, the kernel will include drivers and
  594. infrastructure code to support PCI bus devices.
  595. config PCI_DOMAINS
  596. def_bool PCI
  597. config PCI_SYSCALL
  598. def_bool PCI
  599. config PCI_QSPAN
  600. bool "QSpan PCI"
  601. depends on !4xx && !CPM2 && 8xx
  602. select PPC_I8259
  603. help
  604. Say Y here if you have a system based on a Motorola 8xx-series
  605. embedded processor with a QSPAN PCI interface, otherwise say N.
  606. config PCI_8260
  607. bool
  608. depends on PCI && 8260
  609. select PPC_INDIRECT_PCI
  610. default y
  611. config 8260_PCI9
  612. bool "Enable workaround for MPC826x erratum PCI 9"
  613. depends on PCI_8260 && !8272
  614. default y
  615. source "drivers/pci/pcie/Kconfig"
  616. source "drivers/pci/Kconfig"
  617. source "drivers/pcmcia/Kconfig"
  618. source "drivers/pci/hotplug/Kconfig"
  619. config HAS_RAPIDIO
  620. bool
  621. default n
  622. config RAPIDIO
  623. bool "RapidIO support"
  624. depends on HAS_RAPIDIO || PCI
  625. help
  626. If you say Y here, the kernel will include drivers and
  627. infrastructure code to support RapidIO interconnect devices.
  628. config FSL_RIO
  629. bool "Freescale Embedded SRIO Controller support"
  630. depends on RAPIDIO && HAS_RAPIDIO
  631. default "n"
  632. ---help---
  633. Include support for RapidIO controller on Freescale embedded
  634. processors (MPC8548, MPC8641, etc).
  635. source "drivers/rapidio/Kconfig"
  636. endmenu
  637. config NONSTATIC_KERNEL
  638. bool
  639. default n
  640. menu "Advanced setup"
  641. depends on PPC32
  642. config ADVANCED_OPTIONS
  643. bool "Prompt for advanced kernel configuration options"
  644. help
  645. This option will enable prompting for a variety of advanced kernel
  646. configuration options. These options can cause the kernel to not
  647. work if they are set incorrectly, but can be used to optimize certain
  648. aspects of kernel memory management.
  649. Unless you know what you are doing, say N here.
  650. comment "Default settings for advanced configuration options are used"
  651. depends on !ADVANCED_OPTIONS
  652. config LOWMEM_SIZE_BOOL
  653. bool "Set maximum low memory"
  654. depends on ADVANCED_OPTIONS
  655. help
  656. This option allows you to set the maximum amount of memory which
  657. will be used as "low memory", that is, memory which the kernel can
  658. access directly, without having to set up a kernel virtual mapping.
  659. This can be useful in optimizing the layout of kernel virtual
  660. memory.
  661. Say N here unless you know what you are doing.
  662. config LOWMEM_SIZE
  663. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  664. default "0x30000000"
  665. config LOWMEM_CAM_NUM_BOOL
  666. bool "Set number of CAMs to use to map low memory"
  667. depends on ADVANCED_OPTIONS && FSL_BOOKE
  668. help
  669. This option allows you to set the maximum number of CAM slots that
  670. will be used to map low memory. There are a limited number of slots
  671. available and even more limited number that will fit in the L1 MMU.
  672. However, using more entries will allow mapping more low memory. This
  673. can be useful in optimizing the layout of kernel virtual memory.
  674. Say N here unless you know what you are doing.
  675. config LOWMEM_CAM_NUM
  676. depends on FSL_BOOKE
  677. int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
  678. default 3
  679. config DYNAMIC_MEMSTART
  680. bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
  681. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
  682. select NONSTATIC_KERNEL
  683. help
  684. This option enables the kernel to be loaded at any page aligned
  685. physical address. The kernel creates a mapping from KERNELBASE to
  686. the address where the kernel is loaded. The page size here implies
  687. the TLB page size of the mapping for kernel on the particular platform.
  688. Please refer to the init code for finding the TLB page size.
  689. DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
  690. kernel image, where the only restriction is the page aligned kernel
  691. load address. When this option is enabled, the compile time physical
  692. address CONFIG_PHYSICAL_START is ignored.
  693. This option is overridden by CONFIG_RELOCATABLE
  694. config RELOCATABLE
  695. bool "Build a relocatable kernel (EXPERIMENTAL)"
  696. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
  697. select NONSTATIC_KERNEL
  698. help
  699. This builds a kernel image that is capable of running at the
  700. location the kernel is loaded at, without any alignment restrictions.
  701. This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
  702. One use is for the kexec on panic case where the recovery kernel
  703. must live at a different physical address than the primary
  704. kernel.
  705. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  706. it has been loaded at and the compile time physical addresses
  707. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  708. setting can still be useful to bootwrappers that need to know the
  709. load address of the kernel (eg. u-boot/mkimage).
  710. config RELOCATABLE_PPC32
  711. def_bool y
  712. depends on PPC32 && RELOCATABLE
  713. config PAGE_OFFSET_BOOL
  714. bool "Set custom page offset address"
  715. depends on ADVANCED_OPTIONS
  716. help
  717. This option allows you to set the kernel virtual address at which
  718. the kernel will map low memory. This can be useful in optimizing
  719. the virtual memory layout of the system.
  720. Say N here unless you know what you are doing.
  721. config PAGE_OFFSET
  722. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  723. default "0xc0000000"
  724. config KERNEL_START_BOOL
  725. bool "Set custom kernel base address"
  726. depends on ADVANCED_OPTIONS
  727. help
  728. This option allows you to set the kernel virtual address at which
  729. the kernel will be loaded. Normally this should match PAGE_OFFSET
  730. however there are times (like kdump) that one might not want them
  731. to be the same.
  732. Say N here unless you know what you are doing.
  733. config KERNEL_START
  734. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  735. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  736. default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
  737. default "0xc0000000"
  738. config PHYSICAL_START_BOOL
  739. bool "Set physical address where the kernel is loaded"
  740. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  741. help
  742. This gives the physical address where the kernel is loaded.
  743. Say N here unless you know what you are doing.
  744. config PHYSICAL_START
  745. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  746. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
  747. default "0x00000000"
  748. config PHYSICAL_ALIGN
  749. hex
  750. default "0x04000000" if FSL_BOOKE
  751. help
  752. This value puts the alignment restrictions on physical address
  753. where kernel is loaded and run from. Kernel is compiled for an
  754. address which meets above alignment restriction.
  755. config TASK_SIZE_BOOL
  756. bool "Set custom user task size"
  757. depends on ADVANCED_OPTIONS
  758. help
  759. This option allows you to set the amount of virtual address space
  760. allocated to user tasks. This can be useful in optimizing the
  761. virtual memory layout of the system.
  762. Say N here unless you know what you are doing.
  763. config TASK_SIZE
  764. hex "Size of user task space" if TASK_SIZE_BOOL
  765. default "0x80000000" if PPC_PREP || PPC_8xx
  766. default "0xc0000000"
  767. config CONSISTENT_SIZE_BOOL
  768. bool "Set custom consistent memory pool size"
  769. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  770. help
  771. This option allows you to set the size of the
  772. consistent memory pool. This pool of virtual memory
  773. is used to make consistent memory allocations.
  774. config CONSISTENT_SIZE
  775. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  776. default "0x00200000" if NOT_COHERENT_CACHE
  777. config PIN_TLB
  778. bool "Pinned Kernel TLBs (860 ONLY)"
  779. depends on ADVANCED_OPTIONS && 8xx
  780. endmenu
  781. if PPC64
  782. config RELOCATABLE
  783. bool "Build a relocatable kernel"
  784. select NONSTATIC_KERNEL
  785. help
  786. This builds a kernel image that is capable of running anywhere
  787. in the RMA (real memory area) at any 16k-aligned base address.
  788. The kernel is linked as a position-independent executable (PIE)
  789. and contains dynamic relocations which are processed early
  790. in the bootup process.
  791. One use is for the kexec on panic case where the recovery kernel
  792. must live at a different physical address than the primary
  793. kernel.
  794. config PAGE_OFFSET
  795. hex
  796. default "0xc000000000000000"
  797. config KERNEL_START
  798. hex
  799. default "0xc000000000000000"
  800. config PHYSICAL_START
  801. hex
  802. default "0x00000000"
  803. endif
  804. source "net/Kconfig"
  805. source "drivers/Kconfig"
  806. source "fs/Kconfig"
  807. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  808. source "lib/Kconfig"
  809. source "arch/powerpc/Kconfig.debug"
  810. source "security/Kconfig"
  811. config KEYS_COMPAT
  812. bool
  813. depends on COMPAT && KEYS
  814. default y
  815. source "crypto/Kconfig"
  816. config PPC_CLOCK
  817. bool
  818. default n
  819. select HAVE_CLK
  820. config PPC_LIB_RHEAP
  821. bool
  822. source "arch/powerpc/kvm/Kconfig"