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. config EARLY_PRINTK
  121. bool
  122. default y
  123. config COMPAT
  124. bool
  125. default y if PPC64
  126. select COMPAT_BINFMT_ELF
  127. select ARCH_WANT_OLD_COMPAT_IPC
  128. config SYSVIPC_COMPAT
  129. bool
  130. depends on COMPAT && SYSVIPC
  131. default y
  132. # All PPC32s use generic nvram driver through ppc_md
  133. config GENERIC_NVRAM
  134. bool
  135. default y if PPC32
  136. config SCHED_OMIT_FRAME_POINTER
  137. bool
  138. default y
  139. config ARCH_MAY_HAVE_PC_FDC
  140. bool
  141. default !PPC_PSERIES || PCI
  142. config PPC_OF
  143. def_bool y
  144. config PPC_UDBG_16550
  145. bool
  146. default n
  147. config GENERIC_TBSYNC
  148. bool
  149. default y if PPC32 && SMP
  150. default n
  151. config AUDIT_ARCH
  152. bool
  153. default y
  154. config GENERIC_BUG
  155. bool
  156. default y
  157. depends on BUG
  158. config SYS_SUPPORTS_APM_EMULATION
  159. default y if PMAC_APM_EMU
  160. bool
  161. config EPAPR_BOOT
  162. bool
  163. help
  164. Used to allow a board to specify it wants an ePAPR compliant wrapper.
  165. default n
  166. config DEFAULT_UIMAGE
  167. bool
  168. help
  169. Used to allow a board to specify it wants a uImage built by default
  170. default n
  171. config REDBOOT
  172. bool
  173. config ARCH_HIBERNATION_POSSIBLE
  174. bool
  175. default y
  176. config ARCH_SUSPEND_POSSIBLE
  177. def_bool y
  178. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
  179. (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
  180. config PPC_DCR_NATIVE
  181. bool
  182. default n
  183. config PPC_DCR_MMIO
  184. bool
  185. default n
  186. config PPC_DCR
  187. bool
  188. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  189. default y
  190. config PPC_OF_PLATFORM_PCI
  191. bool
  192. depends on PCI
  193. depends on PPC64 # not supported on 32 bits yet
  194. default n
  195. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  196. def_bool y
  197. config PPC_ADV_DEBUG_REGS
  198. bool
  199. depends on 40x || BOOKE
  200. default y
  201. config PPC_ADV_DEBUG_IACS
  202. int
  203. depends on PPC_ADV_DEBUG_REGS
  204. default 4 if 44x
  205. default 2
  206. config PPC_ADV_DEBUG_DACS
  207. int
  208. depends on PPC_ADV_DEBUG_REGS
  209. default 2
  210. config PPC_ADV_DEBUG_DVCS
  211. int
  212. depends on PPC_ADV_DEBUG_REGS
  213. default 2 if 44x
  214. default 0
  215. config PPC_ADV_DEBUG_DAC_RANGE
  216. bool
  217. depends on PPC_ADV_DEBUG_REGS && 44x
  218. default y
  219. source "init/Kconfig"
  220. source "kernel/Kconfig.freezer"
  221. source "arch/powerpc/sysdev/Kconfig"
  222. source "arch/powerpc/platforms/Kconfig"
  223. menu "Kernel options"
  224. config HIGHMEM
  225. bool "High memory support"
  226. depends on PPC32
  227. source kernel/Kconfig.hz
  228. source kernel/Kconfig.preempt
  229. source "fs/Kconfig.binfmt"
  230. config HUGETLB_PAGE_SIZE_VARIABLE
  231. bool
  232. depends on HUGETLB_PAGE
  233. default y
  234. config MATH_EMULATION
  235. bool "Math emulation"
  236. depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
  237. ---help---
  238. Some PowerPC chips designed for embedded applications do not have
  239. a floating-point unit and therefore do not implement the
  240. floating-point instructions in the PowerPC instruction set. If you
  241. say Y here, the kernel will include code to emulate a floating-point
  242. unit, which will allow programs that use floating-point
  243. instructions to run.
  244. config 8XX_MINIMAL_FPEMU
  245. bool "Minimal math emulation for 8xx"
  246. depends on 8xx && !MATH_EMULATION
  247. help
  248. Older arch/ppc kernels still emulated a few floating point
  249. instructions such as load and store, even when full math
  250. emulation is disabled. Say "Y" here if you want to preserve
  251. this behavior.
  252. It is recommended that you build a soft-float userspace instead.
  253. config IOMMU_HELPER
  254. def_bool PPC64
  255. config SWIOTLB
  256. bool "SWIOTLB support"
  257. default n
  258. select IOMMU_HELPER
  259. ---help---
  260. Support for IO bounce buffering for systems without an IOMMU.
  261. This allows us to DMA to the full physical address space on
  262. platforms where the size of a physical address is larger
  263. than the bus address. Not all platforms support this.
  264. config HOTPLUG_CPU
  265. bool "Support for enabling/disabling CPUs"
  266. depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
  267. ---help---
  268. Say Y here to be able to disable and re-enable individual
  269. CPUs at runtime on SMP machines.
  270. Say N if you are unsure.
  271. config ARCH_CPU_PROBE_RELEASE
  272. def_bool y
  273. depends on HOTPLUG_CPU
  274. config ARCH_ENABLE_MEMORY_HOTPLUG
  275. def_bool y
  276. config ARCH_HAS_WALK_MEMORY
  277. def_bool y
  278. config ARCH_ENABLE_MEMORY_HOTREMOVE
  279. def_bool y
  280. config KEXEC
  281. bool "kexec system call (EXPERIMENTAL)"
  282. depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
  283. help
  284. kexec is a system call that implements the ability to shutdown your
  285. current kernel, and to start another kernel. It is like a reboot
  286. but it is independent of the system firmware. And like a reboot
  287. you can start any kernel with it, not just Linux.
  288. The name comes from the similarity to the exec system call.
  289. It is an ongoing process to be certain the hardware in a machine
  290. is properly shutdown, so do not be surprised if this code does not
  291. initially work for you. It may help to enable device hotplugging
  292. support. As of this writing the exact hardware interface is
  293. strongly in flux, so no good recommendation can be made.
  294. config CRASH_DUMP
  295. bool "Build a kdump crash kernel"
  296. depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP && !PPC_47x)
  297. select RELOCATABLE if PPC64 || 44x
  298. select DYNAMIC_MEMSTART if FSL_BOOKE
  299. help
  300. Build a kernel suitable for use as a kdump capture kernel.
  301. The same kernel binary can be used as production kernel and dump
  302. capture kernel.
  303. config FA_DUMP
  304. bool "Firmware-assisted dump"
  305. depends on PPC64 && PPC_RTAS && CRASH_DUMP
  306. help
  307. A robust mechanism to get reliable kernel crash dump with
  308. assistance from firmware. This approach does not use kexec,
  309. instead firmware assists in booting the kdump kernel
  310. while preserving memory contents. Firmware-assisted dump
  311. is meant to be a kdump replacement offering robustness and
  312. speed not possible without system firmware assistance.
  313. If unsure, say "N"
  314. config IRQ_ALL_CPUS
  315. bool "Distribute interrupts on all CPUs by default"
  316. depends on SMP && !MV64360
  317. help
  318. This option gives the kernel permission to distribute IRQs across
  319. multiple CPUs. Saying N here will route all IRQs to the first
  320. CPU. Generally saying Y is safe, although some problems have been
  321. reported with SMP Power Macintoshes with this option enabled.
  322. config NUMA
  323. bool "NUMA support"
  324. depends on PPC64
  325. default y if SMP && PPC_PSERIES
  326. config NODES_SHIFT
  327. int
  328. default "8" if PPC64
  329. default "4"
  330. depends on NEED_MULTIPLE_NODES
  331. config MAX_ACTIVE_REGIONS
  332. int
  333. default "256" if PPC64
  334. default "32"
  335. config ARCH_SELECT_MEMORY_MODEL
  336. def_bool y
  337. depends on PPC64
  338. config ARCH_FLATMEM_ENABLE
  339. def_bool y
  340. depends on (PPC64 && !NUMA) || PPC32
  341. config ARCH_SPARSEMEM_ENABLE
  342. def_bool y
  343. depends on PPC64
  344. select SPARSEMEM_VMEMMAP_ENABLE
  345. config ARCH_SPARSEMEM_DEFAULT
  346. def_bool y
  347. depends on (SMP && PPC_PSERIES) || PPC_PS3
  348. config SYS_SUPPORTS_HUGETLBFS
  349. bool
  350. source "mm/Kconfig"
  351. config ARCH_MEMORY_PROBE
  352. def_bool y
  353. depends on MEMORY_HOTPLUG
  354. # Some NUMA nodes have memory ranges that span
  355. # other nodes. Even though a pfn is valid and
  356. # between a node's start and end pfns, it may not
  357. # reside on that node. See memmap_init_zone()
  358. # for details.
  359. config NODES_SPAN_OTHER_NODES
  360. def_bool y
  361. depends on NEED_MULTIPLE_NODES
  362. config PPC_HAS_HASH_64K
  363. bool
  364. depends on PPC64
  365. default n
  366. config STDBINUTILS
  367. bool "Using standard binutils settings"
  368. depends on 44x
  369. default y
  370. help
  371. Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
  372. Note, that kernel will be able to run only those applications,
  373. which had been compiled using binutils later than 2.17.50.0.3 with
  374. '-zmax-page-size' set to 256K (the default is 64K). Or, if using
  375. the older binutils, you can patch them with a trivial patch, which
  376. changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
  377. choice
  378. prompt "Page size"
  379. default PPC_4K_PAGES
  380. help
  381. Select the kernel logical page size. Increasing the page size
  382. will reduce software overhead at each page boundary, allow
  383. hardware prefetch mechanisms to be more effective, and allow
  384. larger dma transfers increasing IO efficiency and reducing
  385. overhead. However the utilization of memory will increase.
  386. For example, each cached file will using a multiple of the
  387. page size to hold its contents and the difference between the
  388. end of file and the end of page is wasted.
  389. Some dedicated systems, such as software raid serving with
  390. accelerated calculations, have shown significant increases.
  391. If you configure a 64 bit kernel for 64k pages but the
  392. processor does not support them, then the kernel will simulate
  393. them with 4k pages, loading them on demand, but with the
  394. reduced software overhead and larger internal fragmentation.
  395. For the 32 bit kernel, a large page option will not be offered
  396. unless it is supported by the configured processor.
  397. If unsure, choose 4K_PAGES.
  398. config PPC_4K_PAGES
  399. bool "4k page size"
  400. config PPC_16K_PAGES
  401. bool "16k page size" if 44x
  402. config PPC_64K_PAGES
  403. bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
  404. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  405. config PPC_256K_PAGES
  406. bool "256k page size" if 44x
  407. depends on !STDBINUTILS
  408. help
  409. Make the page size 256k.
  410. As the ELF standard only requires alignment to support page
  411. sizes up to 64k, you will need to compile all of your user
  412. space applications with a non-standard binutils settings
  413. (see the STDBINUTILS description for details).
  414. Say N unless you know what you are doing.
  415. endchoice
  416. config FORCE_MAX_ZONEORDER
  417. int "Maximum zone order"
  418. range 9 64 if PPC64 && PPC_64K_PAGES
  419. default "9" if PPC64 && PPC_64K_PAGES
  420. range 13 64 if PPC64 && !PPC_64K_PAGES
  421. default "13" if PPC64 && !PPC_64K_PAGES
  422. range 9 64 if PPC32 && PPC_16K_PAGES
  423. default "9" if PPC32 && PPC_16K_PAGES
  424. range 7 64 if PPC32 && PPC_64K_PAGES
  425. default "7" if PPC32 && PPC_64K_PAGES
  426. range 5 64 if PPC32 && PPC_256K_PAGES
  427. default "5" if PPC32 && PPC_256K_PAGES
  428. range 11 64
  429. default "11"
  430. help
  431. The kernel memory allocator divides physically contiguous memory
  432. blocks into "zones", where each zone is a power of two number of
  433. pages. This option selects the largest power of two that the kernel
  434. keeps in the memory allocator. If you need to allocate very large
  435. blocks of physically contiguous memory, then you may need to
  436. increase this value.
  437. This config option is actually maximum order plus one. For example,
  438. a value of 11 means that the largest free memory block is 2^10 pages.
  439. The page size is not necessarily 4KB. For example, on 64-bit
  440. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  441. this in mind when choosing a value for this option.
  442. config PPC_SUBPAGE_PROT
  443. bool "Support setting protections for 4k subpages"
  444. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  445. help
  446. This option adds support for a system call to allow user programs
  447. to set access permissions (read/write, readonly, or no access)
  448. on the 4k subpages of each 64k page.
  449. config SCHED_SMT
  450. bool "SMT (Hyperthreading) scheduler support"
  451. depends on PPC64 && SMP
  452. help
  453. SMT scheduler support improves the CPU scheduler's decision making
  454. when dealing with POWER5 cpus at a cost of slightly increased
  455. overhead in some places. If unsure say N here.
  456. config CMDLINE_BOOL
  457. bool "Default bootloader kernel arguments"
  458. config CMDLINE
  459. string "Initial kernel command string"
  460. depends on CMDLINE_BOOL
  461. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  462. help
  463. On some platforms, there is currently no way for the boot loader to
  464. pass arguments to the kernel. For these platforms, you can supply
  465. some command-line options at build time by entering them here. In
  466. most cases you will need to specify the root device here.
  467. config EXTRA_TARGETS
  468. string "Additional default image types"
  469. help
  470. List additional targets to be built by the bootwrapper here (separated
  471. by spaces). This is useful for targets that depend of device tree
  472. files in the .dts directory.
  473. Targets in this list will be build as part of the default build
  474. target, or when the user does a 'make zImage' or a
  475. 'make zImage.initrd'.
  476. If unsure, leave blank
  477. config ARCH_WANTS_FREEZER_CONTROL
  478. def_bool y
  479. depends on ADB_PMU
  480. source kernel/power/Kconfig
  481. config SECCOMP
  482. bool "Enable seccomp to safely compute untrusted bytecode"
  483. depends on PROC_FS
  484. default y
  485. help
  486. This kernel feature is useful for number crunching applications
  487. that may need to compute untrusted bytecode during their
  488. execution. By using pipes or other transports made available to
  489. the process as file descriptors supporting the read/write
  490. syscalls, it's possible to isolate those applications in
  491. their own address space using seccomp. Once seccomp is
  492. enabled via /proc/<pid>/seccomp, it cannot be disabled
  493. and the task is only allowed to execute a few safe syscalls
  494. defined by each seccomp mode.
  495. If unsure, say Y. Only embedded should say N here.
  496. endmenu
  497. config ISA_DMA_API
  498. bool
  499. default PCI
  500. menu "Bus options"
  501. config ISA
  502. bool "Support for ISA-bus hardware"
  503. depends on PPC_PREP || PPC_CHRP
  504. select PPC_I8259
  505. help
  506. Find out whether you have ISA slots on your motherboard. ISA is the
  507. name of a bus system, i.e. the way the CPU talks to the other stuff
  508. inside your box. If you have an Apple machine, say N here; if you
  509. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  510. you have an embedded board, consult your board documentation.
  511. config ZONE_DMA
  512. bool
  513. default y
  514. config NEED_DMA_MAP_STATE
  515. def_bool (PPC64 || NOT_COHERENT_CACHE)
  516. config NEED_SG_DMA_LENGTH
  517. def_bool y
  518. config GENERIC_ISA_DMA
  519. bool
  520. depends on ISA_DMA_API
  521. default y
  522. config PPC_INDIRECT_PCI
  523. bool
  524. depends on PCI
  525. default y if 40x || 44x
  526. default n
  527. config EISA
  528. bool
  529. config SBUS
  530. bool
  531. config FSL_SOC
  532. bool
  533. select HAVE_CAN_FLEXCAN if NET && CAN
  534. select PPC_CLOCK if CAN_FLEXCAN
  535. config FSL_PCI
  536. bool
  537. select PPC_INDIRECT_PCI
  538. select PCI_QUIRKS
  539. config FSL_PMC
  540. bool
  541. default y
  542. depends on SUSPEND && (PPC_85xx || PPC_86xx)
  543. help
  544. Freescale MPC85xx/MPC86xx power management controller support
  545. (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
  546. config PPC4xx_CPM
  547. bool
  548. default y
  549. depends on SUSPEND && (44x || 40x)
  550. help
  551. PPC4xx Clock Power Management (CPM) support (suspend/resume).
  552. It also enables support for two different idle states (idle-wait
  553. and idle-doze).
  554. config 4xx_SOC
  555. bool
  556. config FSL_LBC
  557. bool "Freescale Local Bus support"
  558. depends on FSL_SOC
  559. help
  560. Enables reporting of errors from the Freescale local bus
  561. controller. Also contains some common code used by
  562. drivers for specific local bus peripherals.
  563. config FSL_IFC
  564. bool
  565. depends on FSL_SOC
  566. config FSL_GTM
  567. bool
  568. depends on PPC_83xx || QUICC_ENGINE || CPM2
  569. help
  570. Freescale General-purpose Timers support
  571. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  572. config MCA
  573. bool
  574. # Platforms that what PCI turned unconditionally just do select PCI
  575. # in their config node. Platforms that want to choose at config
  576. # time should select PPC_PCI_CHOICE
  577. config PPC_PCI_CHOICE
  578. bool
  579. config PCI
  580. bool "PCI support" if PPC_PCI_CHOICE
  581. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  582. && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
  583. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  584. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  585. select ARCH_SUPPORTS_MSI
  586. select GENERIC_PCI_IOMAP
  587. help
  588. Find out whether your system includes a PCI bus. PCI is the name of
  589. a bus system, i.e. the way the CPU talks to the other stuff inside
  590. your box. If you say Y here, the kernel will include drivers and
  591. infrastructure code to support PCI bus devices.
  592. config PCI_DOMAINS
  593. def_bool PCI
  594. config PCI_SYSCALL
  595. def_bool PCI
  596. config PCI_QSPAN
  597. bool "QSpan PCI"
  598. depends on !4xx && !CPM2 && 8xx
  599. select PPC_I8259
  600. help
  601. Say Y here if you have a system based on a Motorola 8xx-series
  602. embedded processor with a QSPAN PCI interface, otherwise say N.
  603. config PCI_8260
  604. bool
  605. depends on PCI && 8260
  606. select PPC_INDIRECT_PCI
  607. default y
  608. config 8260_PCI9
  609. bool "Enable workaround for MPC826x erratum PCI 9"
  610. depends on PCI_8260 && !8272
  611. default y
  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. config NONSTATIC_KERNEL
  635. bool
  636. default n
  637. menu "Advanced setup"
  638. depends on PPC32
  639. config ADVANCED_OPTIONS
  640. bool "Prompt for advanced kernel configuration options"
  641. help
  642. This option will enable prompting for a variety of advanced kernel
  643. configuration options. These options can cause the kernel to not
  644. work if they are set incorrectly, but can be used to optimize certain
  645. aspects of kernel memory management.
  646. Unless you know what you are doing, say N here.
  647. comment "Default settings for advanced configuration options are used"
  648. depends on !ADVANCED_OPTIONS
  649. config LOWMEM_SIZE_BOOL
  650. bool "Set maximum low memory"
  651. depends on ADVANCED_OPTIONS
  652. help
  653. This option allows you to set the maximum amount of memory which
  654. will be used as "low memory", that is, memory which the kernel can
  655. access directly, without having to set up a kernel virtual mapping.
  656. This can be useful in optimizing the layout of kernel virtual
  657. memory.
  658. Say N here unless you know what you are doing.
  659. config LOWMEM_SIZE
  660. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  661. default "0x30000000"
  662. config LOWMEM_CAM_NUM_BOOL
  663. bool "Set number of CAMs to use to map low memory"
  664. depends on ADVANCED_OPTIONS && FSL_BOOKE
  665. help
  666. This option allows you to set the maximum number of CAM slots that
  667. will be used to map low memory. There are a limited number of slots
  668. available and even more limited number that will fit in the L1 MMU.
  669. However, using more entries will allow mapping more low memory. This
  670. can be useful in optimizing the layout of kernel virtual memory.
  671. Say N here unless you know what you are doing.
  672. config LOWMEM_CAM_NUM
  673. depends on FSL_BOOKE
  674. int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
  675. default 3
  676. config DYNAMIC_MEMSTART
  677. bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
  678. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
  679. select NONSTATIC_KERNEL
  680. help
  681. This option enables the kernel to be loaded at any page aligned
  682. physical address. The kernel creates a mapping from KERNELBASE to
  683. the address where the kernel is loaded. The page size here implies
  684. the TLB page size of the mapping for kernel on the particular platform.
  685. Please refer to the init code for finding the TLB page size.
  686. DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
  687. kernel image, where the only restriction is the page aligned kernel
  688. load address. When this option is enabled, the compile time physical
  689. address CONFIG_PHYSICAL_START is ignored.
  690. This option is overridden by CONFIG_RELOCATABLE
  691. config RELOCATABLE
  692. bool "Build a relocatable kernel (EXPERIMENTAL)"
  693. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
  694. select NONSTATIC_KERNEL
  695. help
  696. This builds a kernel image that is capable of running at the
  697. location the kernel is loaded at, without any alignment restrictions.
  698. This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
  699. One use is for the kexec on panic case where the recovery kernel
  700. must live at a different physical address than the primary
  701. kernel.
  702. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  703. it has been loaded at and the compile time physical addresses
  704. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  705. setting can still be useful to bootwrappers that need to know the
  706. load address of the kernel (eg. u-boot/mkimage).
  707. config RELOCATABLE_PPC32
  708. def_bool y
  709. depends on PPC32 && RELOCATABLE
  710. config PAGE_OFFSET_BOOL
  711. bool "Set custom page offset address"
  712. depends on ADVANCED_OPTIONS
  713. help
  714. This option allows you to set the kernel virtual address at which
  715. the kernel will map low memory. This can be useful in optimizing
  716. the virtual memory layout of the system.
  717. Say N here unless you know what you are doing.
  718. config PAGE_OFFSET
  719. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  720. default "0xc0000000"
  721. config KERNEL_START_BOOL
  722. bool "Set custom kernel base address"
  723. depends on ADVANCED_OPTIONS
  724. help
  725. This option allows you to set the kernel virtual address at which
  726. the kernel will be loaded. Normally this should match PAGE_OFFSET
  727. however there are times (like kdump) that one might not want them
  728. to be the same.
  729. Say N here unless you know what you are doing.
  730. config KERNEL_START
  731. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  732. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  733. default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
  734. default "0xc0000000"
  735. config PHYSICAL_START_BOOL
  736. bool "Set physical address where the kernel is loaded"
  737. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  738. help
  739. This gives the physical address where the kernel is loaded.
  740. Say N here unless you know what you are doing.
  741. config PHYSICAL_START
  742. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  743. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
  744. default "0x00000000"
  745. config PHYSICAL_ALIGN
  746. hex
  747. default "0x04000000" if FSL_BOOKE
  748. help
  749. This value puts the alignment restrictions on physical address
  750. where kernel is loaded and run from. Kernel is compiled for an
  751. address which meets above alignment restriction.
  752. config TASK_SIZE_BOOL
  753. bool "Set custom user task size"
  754. depends on ADVANCED_OPTIONS
  755. help
  756. This option allows you to set the amount of virtual address space
  757. allocated to user tasks. This can be useful in optimizing the
  758. virtual memory layout of the system.
  759. Say N here unless you know what you are doing.
  760. config TASK_SIZE
  761. hex "Size of user task space" if TASK_SIZE_BOOL
  762. default "0x80000000" if PPC_PREP || PPC_8xx
  763. default "0xc0000000"
  764. config CONSISTENT_SIZE_BOOL
  765. bool "Set custom consistent memory pool size"
  766. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  767. help
  768. This option allows you to set the size of the
  769. consistent memory pool. This pool of virtual memory
  770. is used to make consistent memory allocations.
  771. config CONSISTENT_SIZE
  772. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  773. default "0x00200000" if NOT_COHERENT_CACHE
  774. config PIN_TLB
  775. bool "Pinned Kernel TLBs (860 ONLY)"
  776. depends on ADVANCED_OPTIONS && 8xx
  777. endmenu
  778. if PPC64
  779. config RELOCATABLE
  780. bool "Build a relocatable kernel"
  781. select NONSTATIC_KERNEL
  782. help
  783. This builds a kernel image that is capable of running anywhere
  784. in the RMA (real memory area) at any 16k-aligned base address.
  785. The kernel is linked as a position-independent executable (PIE)
  786. and contains dynamic relocations which are processed early
  787. in the bootup process.
  788. One use is for the kexec on panic case where the recovery kernel
  789. must live at a different physical address than the primary
  790. kernel.
  791. # This value must have zeroes in the bottom 60 bits otherwise lots will break
  792. config PAGE_OFFSET
  793. hex
  794. default "0xc000000000000000"
  795. config KERNEL_START
  796. hex
  797. default "0xc000000000000000"
  798. config PHYSICAL_START
  799. hex
  800. default "0x00000000"
  801. endif
  802. source "net/Kconfig"
  803. source "drivers/Kconfig"
  804. source "fs/Kconfig"
  805. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  806. source "lib/Kconfig"
  807. source "arch/powerpc/Kconfig.debug"
  808. source "security/Kconfig"
  809. config KEYS_COMPAT
  810. bool
  811. depends on COMPAT && KEYS
  812. default y
  813. source "crypto/Kconfig"
  814. config PPC_CLOCK
  815. bool
  816. default n
  817. select HAVE_CLK
  818. config PPC_LIB_RHEAP
  819. bool
  820. source "arch/powerpc/kvm/Kconfig"