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