Kconfig 22 KB

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  1. # For a description of the syntax of this configuration file,
  2. # see Documentation/kbuild/kconfig-language.txt.
  3. #
  4. mainmenu "Linux/PowerPC Kernel Configuration"
  5. source "arch/powerpc/platforms/Kconfig.cputype"
  6. config PPC32
  7. bool
  8. default y if !PPC64
  9. config 64BIT
  10. bool
  11. default y if PPC64
  12. config WORD_SIZE
  13. int
  14. default 64 if PPC64
  15. default 32 if !PPC64
  16. config ARCH_PHYS_ADDR_T_64BIT
  17. def_bool PPC64 || PHYS_64BIT
  18. config MMU
  19. bool
  20. default y
  21. config GENERIC_CMOS_UPDATE
  22. def_bool y
  23. config GENERIC_TIME
  24. def_bool y
  25. config GENERIC_TIME_VSYSCALL
  26. def_bool y
  27. config GENERIC_CLOCKEVENTS
  28. def_bool y
  29. config GENERIC_HARDIRQS
  30. bool
  31. default y
  32. config HAVE_SETUP_PER_CPU_AREA
  33. def_bool PPC64
  34. config IRQ_PER_CPU
  35. bool
  36. default y
  37. config STACKTRACE_SUPPORT
  38. bool
  39. default y
  40. config HAVE_LATENCYTOP_SUPPORT
  41. def_bool y
  42. config TRACE_IRQFLAGS_SUPPORT
  43. bool
  44. depends on PPC64
  45. default y
  46. config LOCKDEP_SUPPORT
  47. bool
  48. default y
  49. config RWSEM_GENERIC_SPINLOCK
  50. bool
  51. config RWSEM_XCHGADD_ALGORITHM
  52. bool
  53. default y
  54. config GENERIC_LOCKBREAK
  55. bool
  56. default y
  57. depends on SMP && PREEMPT
  58. config ARCH_HAS_ILOG2_U32
  59. bool
  60. default y
  61. config ARCH_HAS_ILOG2_U64
  62. bool
  63. default y if 64BIT
  64. config GENERIC_HWEIGHT
  65. bool
  66. default y
  67. config GENERIC_CALIBRATE_DELAY
  68. bool
  69. default y
  70. config GENERIC_FIND_NEXT_BIT
  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 HAVE_FUNCTION_TRACER
  83. select ARCH_WANT_OPTIONAL_GPIOLIB
  84. select HAVE_IDE
  85. select HAVE_IOREMAP_PROT
  86. select HAVE_EFFICIENT_UNALIGNED_ACCESS
  87. select HAVE_KPROBES
  88. select HAVE_ARCH_KGDB
  89. select HAVE_KRETPROBES
  90. select HAVE_ARCH_TRACEHOOK
  91. select HAVE_LMB
  92. select HAVE_DMA_ATTRS if PPC64
  93. select USE_GENERIC_SMP_HELPERS if SMP
  94. select HAVE_OPROFILE
  95. config EARLY_PRINTK
  96. bool
  97. default y
  98. config COMPAT
  99. bool
  100. default y if PPC64
  101. select COMPAT_BINFMT_ELF
  102. config SYSVIPC_COMPAT
  103. bool
  104. depends on COMPAT && SYSVIPC
  105. default y
  106. # All PPC32s use generic nvram driver through ppc_md
  107. config GENERIC_NVRAM
  108. bool
  109. default y if PPC32
  110. config SCHED_OMIT_FRAME_POINTER
  111. bool
  112. default y
  113. config ARCH_MAY_HAVE_PC_FDC
  114. bool
  115. default !PPC_PSERIES || PCI
  116. config PPC_OF
  117. def_bool y
  118. config OF
  119. def_bool y
  120. config PPC_UDBG_16550
  121. bool
  122. default n
  123. config GENERIC_TBSYNC
  124. bool
  125. default y if PPC32 && SMP
  126. default n
  127. config AUDIT_ARCH
  128. bool
  129. default y
  130. config GENERIC_BUG
  131. bool
  132. default y
  133. depends on BUG
  134. config SYS_SUPPORTS_APM_EMULATION
  135. default y if PMAC_APM_EMU
  136. bool
  137. config DEFAULT_UIMAGE
  138. bool
  139. help
  140. Used to allow a board to specify it wants a uImage built by default
  141. default n
  142. config REDBOOT
  143. bool
  144. config HIBERNATE_32
  145. bool
  146. depends on (PPC_PMAC && !SMP) || BROKEN
  147. default y
  148. config HIBERNATE_64
  149. bool
  150. depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
  151. default y
  152. config ARCH_HIBERNATION_POSSIBLE
  153. bool
  154. depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
  155. default y
  156. config ARCH_SUSPEND_POSSIBLE
  157. def_bool y
  158. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx
  159. config PPC_DCR_NATIVE
  160. bool
  161. default n
  162. config PPC_DCR_MMIO
  163. bool
  164. default n
  165. config PPC_DCR
  166. bool
  167. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  168. default y
  169. config PPC_OF_PLATFORM_PCI
  170. bool
  171. depends on PCI
  172. depends on PPC64 # not supported on 32 bits yet
  173. default n
  174. source "init/Kconfig"
  175. source "kernel/Kconfig.freezer"
  176. source "arch/powerpc/sysdev/Kconfig"
  177. source "arch/powerpc/platforms/Kconfig"
  178. menu "Kernel options"
  179. config HIGHMEM
  180. bool "High memory support"
  181. depends on PPC32
  182. source kernel/time/Kconfig
  183. source kernel/Kconfig.hz
  184. source kernel/Kconfig.preempt
  185. source "fs/Kconfig.binfmt"
  186. config HUGETLB_PAGE_SIZE_VARIABLE
  187. bool
  188. depends on HUGETLB_PAGE
  189. default y
  190. config MATH_EMULATION
  191. bool "Math emulation"
  192. depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
  193. ---help---
  194. Some PowerPC chips designed for embedded applications do not have
  195. a floating-point unit and therefore do not implement the
  196. floating-point instructions in the PowerPC instruction set. If you
  197. say Y here, the kernel will include code to emulate a floating-point
  198. unit, which will allow programs that use floating-point
  199. instructions to run.
  200. config 8XX_MINIMAL_FPEMU
  201. bool "Minimal math emulation for 8xx"
  202. depends on 8xx && !MATH_EMULATION
  203. help
  204. Older arch/ppc kernels still emulated a few floating point
  205. instructions such as load and store, even when full math
  206. emulation is disabled. Say "Y" here if you want to preserve
  207. this behavior.
  208. It is recommended that you build a soft-float userspace instead.
  209. config IOMMU_VMERGE
  210. bool "Enable IOMMU virtual merging"
  211. depends on PPC64
  212. default y
  213. help
  214. Cause IO segments sent to a device for DMA to be merged virtually
  215. by the IOMMU when they happen to have been allocated contiguously.
  216. This doesn't add pressure to the IOMMU allocator. However, some
  217. drivers don't support getting large merged segments coming back
  218. from *_map_sg().
  219. Most drivers don't have this problem; it is safe to say Y here.
  220. config IOMMU_HELPER
  221. def_bool PPC64
  222. config PPC_NEED_DMA_SYNC_OPS
  223. def_bool y
  224. depends on NOT_COHERENT_CACHE
  225. config HOTPLUG_CPU
  226. bool "Support for enabling/disabling CPUs"
  227. depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
  228. ---help---
  229. Say Y here to be able to disable and re-enable individual
  230. CPUs at runtime on SMP machines.
  231. Say N if you are unsure.
  232. config ARCH_ENABLE_MEMORY_HOTPLUG
  233. def_bool y
  234. config ARCH_HAS_WALK_MEMORY
  235. def_bool y
  236. config ARCH_ENABLE_MEMORY_HOTREMOVE
  237. def_bool y
  238. config KEXEC
  239. bool "kexec system call (EXPERIMENTAL)"
  240. depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
  241. help
  242. kexec is a system call that implements the ability to shutdown your
  243. current kernel, and to start another kernel. It is like a reboot
  244. but it is independent of the system firmware. And like a reboot
  245. you can start any kernel with it, not just Linux.
  246. The name comes from the similarity to the exec system call.
  247. It is an ongoing process to be certain the hardware in a machine
  248. is properly shutdown, so do not be surprised if this code does not
  249. initially work for you. It may help to enable device hotplugging
  250. support. As of this writing the exact hardware interface is
  251. strongly in flux, so no good recommendation can be made.
  252. config CRASH_DUMP
  253. bool "Build a kdump crash kernel"
  254. depends on (PPC64 && RELOCATABLE) || 6xx
  255. help
  256. Build a kernel suitable for use as a kdump capture kernel.
  257. The same kernel binary can be used as production kernel and dump
  258. capture kernel.
  259. config PHYP_DUMP
  260. bool "Hypervisor-assisted dump (EXPERIMENTAL)"
  261. depends on PPC_PSERIES && EXPERIMENTAL
  262. help
  263. Hypervisor-assisted dump is meant to be a kdump replacement
  264. offering robustness and speed not possible without system
  265. hypervisor assistence.
  266. If unsure, say "N"
  267. config PPCBUG_NVRAM
  268. bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
  269. default y if PPC_PREP
  270. config IRQ_ALL_CPUS
  271. bool "Distribute interrupts on all CPUs by default"
  272. depends on SMP && !MV64360
  273. help
  274. This option gives the kernel permission to distribute IRQs across
  275. multiple CPUs. Saying N here will route all IRQs to the first
  276. CPU. Generally saying Y is safe, although some problems have been
  277. reported with SMP Power Macintoshes with this option enabled.
  278. config NUMA
  279. bool "NUMA support"
  280. depends on PPC64
  281. default y if SMP && PPC_PSERIES
  282. config NODES_SHIFT
  283. int
  284. default "4"
  285. depends on NEED_MULTIPLE_NODES
  286. config ARCH_SELECT_MEMORY_MODEL
  287. def_bool y
  288. depends on PPC64
  289. config ARCH_FLATMEM_ENABLE
  290. def_bool y
  291. depends on (PPC64 && !NUMA) || PPC32
  292. config ARCH_SPARSEMEM_ENABLE
  293. def_bool y
  294. depends on PPC64
  295. select SPARSEMEM_VMEMMAP_ENABLE
  296. config ARCH_SPARSEMEM_DEFAULT
  297. def_bool y
  298. depends on (SMP && PPC_PSERIES) || PPC_PS3
  299. config ARCH_POPULATES_NODE_MAP
  300. def_bool y
  301. source "mm/Kconfig"
  302. config ARCH_MEMORY_PROBE
  303. def_bool y
  304. depends on MEMORY_HOTPLUG
  305. # Some NUMA nodes have memory ranges that span
  306. # other nodes. Even though a pfn is valid and
  307. # between a node's start and end pfns, it may not
  308. # reside on that node. See memmap_init_zone()
  309. # for details.
  310. config NODES_SPAN_OTHER_NODES
  311. def_bool y
  312. depends on NEED_MULTIPLE_NODES
  313. config PPC_HAS_HASH_64K
  314. bool
  315. depends on PPC64
  316. default n
  317. choice
  318. prompt "Page size"
  319. default PPC_4K_PAGES
  320. help
  321. Select the kernel logical page size. Increasing the page size
  322. will reduce software overhead at each page boundary, allow
  323. hardware prefetch mechanisms to be more effective, and allow
  324. larger dma transfers increasing IO efficiency and reducing
  325. overhead. However the utilization of memory will increase.
  326. For example, each cached file will using a multiple of the
  327. page size to hold its contents and the difference between the
  328. end of file and the end of page is wasted.
  329. Some dedicated systems, such as software raid serving with
  330. accelerated calculations, have shown significant increases.
  331. If you configure a 64 bit kernel for 64k pages but the
  332. processor does not support them, then the kernel will simulate
  333. them with 4k pages, loading them on demand, but with the
  334. reduced software overhead and larger internal fragmentation.
  335. For the 32 bit kernel, a large page option will not be offered
  336. unless it is supported by the configured processor.
  337. If unsure, choose 4K_PAGES.
  338. config PPC_4K_PAGES
  339. bool "4k page size"
  340. config PPC_16K_PAGES
  341. bool "16k page size" if 44x
  342. config PPC_64K_PAGES
  343. bool "64k page size" if 44x || PPC_STD_MMU_64
  344. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  345. endchoice
  346. config FORCE_MAX_ZONEORDER
  347. int "Maximum zone order"
  348. range 9 64 if PPC_STD_MMU_64 && PPC_64K_PAGES
  349. default "9" if PPC_STD_MMU_64 && PPC_64K_PAGES
  350. range 13 64 if PPC_STD_MMU_64 && !PPC_64K_PAGES
  351. default "13" if PPC_STD_MMU_64 && !PPC_64K_PAGES
  352. range 9 64 if PPC_STD_MMU_32 && PPC_16K_PAGES
  353. default "9" if PPC_STD_MMU_32 && PPC_16K_PAGES
  354. range 7 64 if PPC_STD_MMU_32 && PPC_64K_PAGES
  355. default "7" if PPC_STD_MMU_32 && PPC_64K_PAGES
  356. range 11 64
  357. default "11"
  358. help
  359. The kernel memory allocator divides physically contiguous memory
  360. blocks into "zones", where each zone is a power of two number of
  361. pages. This option selects the largest power of two that the kernel
  362. keeps in the memory allocator. If you need to allocate very large
  363. blocks of physically contiguous memory, then you may need to
  364. increase this value.
  365. This config option is actually maximum order plus one. For example,
  366. a value of 11 means that the largest free memory block is 2^10 pages.
  367. The page size is not necessarily 4KB. For example, on 64-bit
  368. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  369. this in mind when choosing a value for this option.
  370. config PPC_SUBPAGE_PROT
  371. bool "Support setting protections for 4k subpages"
  372. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  373. help
  374. This option adds support for a system call to allow user programs
  375. to set access permissions (read/write, readonly, or no access)
  376. on the 4k subpages of each 64k page.
  377. config SCHED_SMT
  378. bool "SMT (Hyperthreading) scheduler support"
  379. depends on PPC64 && SMP
  380. help
  381. SMT scheduler support improves the CPU scheduler's decision making
  382. when dealing with POWER5 cpus at a cost of slightly increased
  383. overhead in some places. If unsure say N here.
  384. config PROC_DEVICETREE
  385. bool "Support for device tree in /proc"
  386. depends on PROC_FS
  387. help
  388. This option adds a device-tree directory under /proc which contains
  389. an image of the device tree that the kernel copies from Open
  390. Firmware or other boot firmware. If unsure, say Y here.
  391. config CMDLINE_BOOL
  392. bool "Default bootloader kernel arguments"
  393. config CMDLINE
  394. string "Initial kernel command string"
  395. depends on CMDLINE_BOOL
  396. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  397. help
  398. On some platforms, there is currently no way for the boot loader to
  399. pass arguments to the kernel. For these platforms, you can supply
  400. some command-line options at build time by entering them here. In
  401. most cases you will need to specify the root device here.
  402. config EXTRA_TARGETS
  403. string "Additional default image types"
  404. help
  405. List additional targets to be built by the bootwrapper here (separated
  406. by spaces). This is useful for targets that depend of device tree
  407. files in the .dts directory.
  408. Targets in this list will be build as part of the default build
  409. target, or when the user does a 'make zImage' or a
  410. 'make zImage.initrd'.
  411. If unsure, leave blank
  412. if !44x || BROKEN
  413. config ARCH_WANTS_FREEZER_CONTROL
  414. def_bool y
  415. depends on ADB_PMU
  416. source kernel/power/Kconfig
  417. endif
  418. config SECCOMP
  419. bool "Enable seccomp to safely compute untrusted bytecode"
  420. depends on PROC_FS
  421. default y
  422. help
  423. This kernel feature is useful for number crunching applications
  424. that may need to compute untrusted bytecode during their
  425. execution. By using pipes or other transports made available to
  426. the process as file descriptors supporting the read/write
  427. syscalls, it's possible to isolate those applications in
  428. their own address space using seccomp. Once seccomp is
  429. enabled via /proc/<pid>/seccomp, it cannot be disabled
  430. and the task is only allowed to execute a few safe syscalls
  431. defined by each seccomp mode.
  432. If unsure, say Y. Only embedded should say N here.
  433. endmenu
  434. config ISA_DMA_API
  435. bool
  436. default !PPC_ISERIES || PCI
  437. menu "Bus options"
  438. config ISA
  439. bool "Support for ISA-bus hardware"
  440. depends on PPC_PREP || PPC_CHRP
  441. select PPC_I8259
  442. help
  443. Find out whether you have ISA slots on your motherboard. ISA is the
  444. name of a bus system, i.e. the way the CPU talks to the other stuff
  445. inside your box. If you have an Apple machine, say N here; if you
  446. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  447. you have an embedded board, consult your board documentation.
  448. config ZONE_DMA
  449. bool
  450. default y
  451. config GENERIC_ISA_DMA
  452. bool
  453. depends on PPC64 || POWER4 || 6xx && !CPM2
  454. default y
  455. config PPC_INDIRECT_PCI
  456. bool
  457. depends on PCI
  458. default y if 40x || 44x
  459. default n
  460. config EISA
  461. bool
  462. config SBUS
  463. bool
  464. config FSL_SOC
  465. bool
  466. config FSL_PCI
  467. bool
  468. select PPC_INDIRECT_PCI
  469. config 4xx_SOC
  470. bool
  471. config FSL_LBC
  472. bool
  473. help
  474. Freescale Localbus support
  475. config FSL_GTM
  476. bool
  477. depends on PPC_83xx || QUICC_ENGINE || CPM2
  478. help
  479. Freescale General-purpose Timers support
  480. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  481. config MCA
  482. bool
  483. # Platforms that what PCI turned unconditionally just do select PCI
  484. # in their config node. Platforms that want to choose at config
  485. # time should select PPC_PCI_CHOICE
  486. config PPC_PCI_CHOICE
  487. bool
  488. config PCI
  489. bool "PCI support" if PPC_PCI_CHOICE
  490. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  491. && !PPC_85xx && !PPC_86xx
  492. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  493. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  494. select ARCH_SUPPORTS_MSI
  495. help
  496. Find out whether your system includes a PCI bus. PCI is the name of
  497. a bus system, i.e. the way the CPU talks to the other stuff inside
  498. your box. If you say Y here, the kernel will include drivers and
  499. infrastructure code to support PCI bus devices.
  500. config PCI_DOMAINS
  501. def_bool PCI
  502. config PCI_SYSCALL
  503. def_bool PCI
  504. config PCI_QSPAN
  505. bool "QSpan PCI"
  506. depends on !4xx && !CPM2 && 8xx
  507. select PPC_I8259
  508. help
  509. Say Y here if you have a system based on a Motorola 8xx-series
  510. embedded processor with a QSPAN PCI interface, otherwise say N.
  511. config PCI_8260
  512. bool
  513. depends on PCI && 8260
  514. select PPC_INDIRECT_PCI
  515. default y
  516. config 8260_PCI9
  517. bool "Enable workaround for MPC826x erratum PCI 9"
  518. depends on PCI_8260 && !8272
  519. default y
  520. choice
  521. prompt "IDMA channel for PCI 9 workaround"
  522. depends on 8260_PCI9
  523. config 8260_PCI9_IDMA1
  524. bool "IDMA1"
  525. config 8260_PCI9_IDMA2
  526. bool "IDMA2"
  527. config 8260_PCI9_IDMA3
  528. bool "IDMA3"
  529. config 8260_PCI9_IDMA4
  530. bool "IDMA4"
  531. endchoice
  532. source "drivers/pci/pcie/Kconfig"
  533. source "drivers/pci/Kconfig"
  534. source "drivers/pcmcia/Kconfig"
  535. source "drivers/pci/hotplug/Kconfig"
  536. config HAS_RAPIDIO
  537. bool
  538. default n
  539. config RAPIDIO
  540. bool "RapidIO support"
  541. depends on HAS_RAPIDIO
  542. help
  543. If you say Y here, the kernel will include drivers and
  544. infrastructure code to support RapidIO interconnect devices.
  545. source "drivers/rapidio/Kconfig"
  546. endmenu
  547. menu "Advanced setup"
  548. depends on PPC32
  549. config ADVANCED_OPTIONS
  550. bool "Prompt for advanced kernel configuration options"
  551. help
  552. This option will enable prompting for a variety of advanced kernel
  553. configuration options. These options can cause the kernel to not
  554. work if they are set incorrectly, but can be used to optimize certain
  555. aspects of kernel memory management.
  556. Unless you know what you are doing, say N here.
  557. comment "Default settings for advanced configuration options are used"
  558. depends on !ADVANCED_OPTIONS
  559. config LOWMEM_SIZE_BOOL
  560. bool "Set maximum low memory"
  561. depends on ADVANCED_OPTIONS
  562. help
  563. This option allows you to set the maximum amount of memory which
  564. will be used as "low memory", that is, memory which the kernel can
  565. access directly, without having to set up a kernel virtual mapping.
  566. This can be useful in optimizing the layout of kernel virtual
  567. memory.
  568. Say N here unless you know what you are doing.
  569. config LOWMEM_SIZE
  570. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  571. default "0x30000000"
  572. config RELOCATABLE
  573. bool "Build a relocatable kernel (EXPERIMENTAL)"
  574. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  575. help
  576. This builds a kernel image that is capable of running at the
  577. location the kernel is loaded at (some alignment restrictions may
  578. exist).
  579. One use is for the kexec on panic case where the recovery kernel
  580. must live at a different physical address than the primary
  581. kernel.
  582. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  583. it has been loaded at and the compile time physical addresses
  584. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  585. setting can still be useful to bootwrappers that need to know the
  586. load location of the kernel (eg. u-boot/mkimage).
  587. config PAGE_OFFSET_BOOL
  588. bool "Set custom page offset address"
  589. depends on ADVANCED_OPTIONS
  590. help
  591. This option allows you to set the kernel virtual address at which
  592. the kernel will map low memory. This can be useful in optimizing
  593. the virtual memory layout of the system.
  594. Say N here unless you know what you are doing.
  595. config PAGE_OFFSET
  596. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  597. default "0xc0000000"
  598. config KERNEL_START_BOOL
  599. bool "Set custom kernel base address"
  600. depends on ADVANCED_OPTIONS
  601. help
  602. This option allows you to set the kernel virtual address at which
  603. the kernel will be loaded. Normally this should match PAGE_OFFSET
  604. however there are times (like kdump) that one might not want them
  605. to be the same.
  606. Say N here unless you know what you are doing.
  607. config KERNEL_START
  608. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  609. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  610. default "0xc2000000" if CRASH_DUMP
  611. default "0xc0000000"
  612. config PHYSICAL_START_BOOL
  613. bool "Set physical address where the kernel is loaded"
  614. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  615. help
  616. This gives the physical address where the kernel is loaded.
  617. Say N here unless you know what you are doing.
  618. config PHYSICAL_START
  619. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  620. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP
  621. default "0x00000000"
  622. config PHYSICAL_ALIGN
  623. hex
  624. default "0x10000000" if FSL_BOOKE
  625. help
  626. This value puts the alignment restrictions on physical address
  627. where kernel is loaded and run from. Kernel is compiled for an
  628. address which meets above alignment restriction.
  629. config TASK_SIZE_BOOL
  630. bool "Set custom user task size"
  631. depends on ADVANCED_OPTIONS
  632. help
  633. This option allows you to set the amount of virtual address space
  634. allocated to user tasks. This can be useful in optimizing the
  635. virtual memory layout of the system.
  636. Say N here unless you know what you are doing.
  637. config TASK_SIZE
  638. hex "Size of user task space" if TASK_SIZE_BOOL
  639. default "0x80000000" if PPC_PREP || PPC_8xx
  640. default "0xc0000000"
  641. config CONSISTENT_START_BOOL
  642. bool "Set custom consistent memory pool address"
  643. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  644. help
  645. This option allows you to set the base virtual address
  646. of the consistent memory pool. This pool of virtual
  647. memory is used to make consistent memory allocations.
  648. config CONSISTENT_START
  649. hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
  650. default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
  651. default "0xff100000" if NOT_COHERENT_CACHE
  652. config CONSISTENT_SIZE_BOOL
  653. bool "Set custom consistent memory pool size"
  654. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  655. help
  656. This option allows you to set the size of the
  657. consistent memory pool. This pool of virtual memory
  658. is used to make consistent memory allocations.
  659. config CONSISTENT_SIZE
  660. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  661. default "0x00200000" if NOT_COHERENT_CACHE
  662. config PIN_TLB
  663. bool "Pinned Kernel TLBs (860 ONLY)"
  664. depends on ADVANCED_OPTIONS && 8xx
  665. endmenu
  666. if PPC64
  667. config RELOCATABLE
  668. bool "Build a relocatable kernel"
  669. help
  670. This builds a kernel image that is capable of running anywhere
  671. in the RMA (real memory area) at any 16k-aligned base address.
  672. The kernel is linked as a position-independent executable (PIE)
  673. and contains dynamic relocations which are processed early
  674. in the bootup process.
  675. One use is for the kexec on panic case where the recovery kernel
  676. must live at a different physical address than the primary
  677. kernel.
  678. config PAGE_OFFSET
  679. hex
  680. default "0xc000000000000000"
  681. config KERNEL_START
  682. hex
  683. default "0xc000000000000000"
  684. config PHYSICAL_START
  685. hex
  686. default "0x00000000"
  687. endif
  688. source "net/Kconfig"
  689. source "drivers/Kconfig"
  690. source "fs/Kconfig"
  691. # XXX source "arch/ppc/8xx_io/Kconfig"
  692. # XXX source "arch/ppc/8260_io/Kconfig"
  693. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  694. source "lib/Kconfig"
  695. source "arch/powerpc/Kconfig.debug"
  696. source "security/Kconfig"
  697. config KEYS_COMPAT
  698. bool
  699. depends on COMPAT && KEYS
  700. default y
  701. source "crypto/Kconfig"
  702. config PPC_CLOCK
  703. bool
  704. default n
  705. select HAVE_CLK
  706. config PPC_LIB_RHEAP
  707. bool
  708. source "arch/powerpc/kvm/Kconfig"