Kconfig 21 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_NO_NO_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 PPC_MULTIPLATFORM && PPC64 && RELOCATABLE
  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. config PPC_64K_PAGES
  318. bool "64k page size"
  319. depends on PPC64
  320. select PPC_HAS_HASH_64K
  321. help
  322. This option changes the kernel logical page size to 64k. On machines
  323. without processor support for 64k pages, the kernel will simulate
  324. them by loading each individual 4k page on demand transparently,
  325. while on hardware with such support, it will be used to map
  326. normal application pages.
  327. config FORCE_MAX_ZONEORDER
  328. int "Maximum zone order"
  329. range 9 64 if PPC_64K_PAGES
  330. default "9" if PPC_64K_PAGES
  331. range 13 64 if PPC64 && !PPC_64K_PAGES
  332. default "13" if PPC64 && !PPC_64K_PAGES
  333. range 11 64
  334. default "11"
  335. help
  336. The kernel memory allocator divides physically contiguous memory
  337. blocks into "zones", where each zone is a power of two number of
  338. pages. This option selects the largest power of two that the kernel
  339. keeps in the memory allocator. If you need to allocate very large
  340. blocks of physically contiguous memory, then you may need to
  341. increase this value.
  342. This config option is actually maximum order plus one. For example,
  343. a value of 11 means that the largest free memory block is 2^10 pages.
  344. The page size is not necessarily 4KB. For example, on 64-bit
  345. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  346. this in mind when choosing a value for this option.
  347. config PPC_SUBPAGE_PROT
  348. bool "Support setting protections for 4k subpages"
  349. depends on PPC_64K_PAGES
  350. help
  351. This option adds support for a system call to allow user programs
  352. to set access permissions (read/write, readonly, or no access)
  353. on the 4k subpages of each 64k page.
  354. config SCHED_SMT
  355. bool "SMT (Hyperthreading) scheduler support"
  356. depends on PPC64 && SMP
  357. help
  358. SMT scheduler support improves the CPU scheduler's decision making
  359. when dealing with POWER5 cpus at a cost of slightly increased
  360. overhead in some places. If unsure say N here.
  361. config PROC_DEVICETREE
  362. bool "Support for device tree in /proc"
  363. depends on PROC_FS
  364. help
  365. This option adds a device-tree directory under /proc which contains
  366. an image of the device tree that the kernel copies from Open
  367. Firmware or other boot firmware. If unsure, say Y here.
  368. config CMDLINE_BOOL
  369. bool "Default bootloader kernel arguments"
  370. config CMDLINE
  371. string "Initial kernel command string"
  372. depends on CMDLINE_BOOL
  373. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  374. help
  375. On some platforms, there is currently no way for the boot loader to
  376. pass arguments to the kernel. For these platforms, you can supply
  377. some command-line options at build time by entering them here. In
  378. most cases you will need to specify the root device here.
  379. config EXTRA_TARGETS
  380. string "Additional default image types"
  381. help
  382. List additional targets to be built by the bootwrapper here (separated
  383. by spaces). This is useful for targets that depend of device tree
  384. files in the .dts directory.
  385. Targets in this list will be build as part of the default build
  386. target, or when the user does a 'make zImage' or a
  387. 'make zImage.initrd'.
  388. If unsure, leave blank
  389. if !44x || BROKEN
  390. config ARCH_WANTS_FREEZER_CONTROL
  391. def_bool y
  392. depends on ADB_PMU
  393. source kernel/power/Kconfig
  394. endif
  395. config SECCOMP
  396. bool "Enable seccomp to safely compute untrusted bytecode"
  397. depends on PROC_FS
  398. default y
  399. help
  400. This kernel feature is useful for number crunching applications
  401. that may need to compute untrusted bytecode during their
  402. execution. By using pipes or other transports made available to
  403. the process as file descriptors supporting the read/write
  404. syscalls, it's possible to isolate those applications in
  405. their own address space using seccomp. Once seccomp is
  406. enabled via /proc/<pid>/seccomp, it cannot be disabled
  407. and the task is only allowed to execute a few safe syscalls
  408. defined by each seccomp mode.
  409. If unsure, say Y. Only embedded should say N here.
  410. endmenu
  411. config ISA_DMA_API
  412. bool
  413. default !PPC_ISERIES || PCI
  414. menu "Bus options"
  415. config ISA
  416. bool "Support for ISA-bus hardware"
  417. depends on PPC_PREP || PPC_CHRP
  418. select PPC_I8259
  419. help
  420. Find out whether you have ISA slots on your motherboard. ISA is the
  421. name of a bus system, i.e. the way the CPU talks to the other stuff
  422. inside your box. If you have an Apple machine, say N here; if you
  423. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  424. you have an embedded board, consult your board documentation.
  425. config ZONE_DMA
  426. bool
  427. default y
  428. config GENERIC_ISA_DMA
  429. bool
  430. depends on PPC64 || POWER4 || 6xx && !CPM2
  431. default y
  432. config PPC_INDIRECT_PCI
  433. bool
  434. depends on PCI
  435. default y if 40x || 44x
  436. default n
  437. config EISA
  438. bool
  439. config SBUS
  440. bool
  441. config FSL_SOC
  442. bool
  443. config FSL_PCI
  444. bool
  445. select PPC_INDIRECT_PCI
  446. config 4xx_SOC
  447. bool
  448. config FSL_LBC
  449. bool
  450. help
  451. Freescale Localbus support
  452. config FSL_GTM
  453. bool
  454. depends on PPC_83xx || QUICC_ENGINE || CPM2
  455. help
  456. Freescale General-purpose Timers support
  457. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  458. config MCA
  459. bool
  460. # Platforms that what PCI turned unconditionally just do select PCI
  461. # in their config node. Platforms that want to choose at config
  462. # time should select PPC_PCI_CHOICE
  463. config PPC_PCI_CHOICE
  464. bool
  465. config PCI
  466. bool "PCI support" if PPC_PCI_CHOICE
  467. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  468. && !PPC_85xx && !PPC_86xx
  469. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  470. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  471. select ARCH_SUPPORTS_MSI
  472. help
  473. Find out whether your system includes a PCI bus. PCI is the name of
  474. a bus system, i.e. the way the CPU talks to the other stuff inside
  475. your box. If you say Y here, the kernel will include drivers and
  476. infrastructure code to support PCI bus devices.
  477. config PCI_DOMAINS
  478. def_bool PCI
  479. config PCI_SYSCALL
  480. def_bool PCI
  481. config PCI_QSPAN
  482. bool "QSpan PCI"
  483. depends on !4xx && !CPM2 && 8xx
  484. select PPC_I8259
  485. help
  486. Say Y here if you have a system based on a Motorola 8xx-series
  487. embedded processor with a QSPAN PCI interface, otherwise say N.
  488. config PCI_8260
  489. bool
  490. depends on PCI && 8260
  491. select PPC_INDIRECT_PCI
  492. default y
  493. config 8260_PCI9
  494. bool "Enable workaround for MPC826x erratum PCI 9"
  495. depends on PCI_8260 && !8272
  496. default y
  497. choice
  498. prompt "IDMA channel for PCI 9 workaround"
  499. depends on 8260_PCI9
  500. config 8260_PCI9_IDMA1
  501. bool "IDMA1"
  502. config 8260_PCI9_IDMA2
  503. bool "IDMA2"
  504. config 8260_PCI9_IDMA3
  505. bool "IDMA3"
  506. config 8260_PCI9_IDMA4
  507. bool "IDMA4"
  508. endchoice
  509. source "drivers/pci/pcie/Kconfig"
  510. source "drivers/pci/Kconfig"
  511. source "drivers/pcmcia/Kconfig"
  512. source "drivers/pci/hotplug/Kconfig"
  513. config HAS_RAPIDIO
  514. bool
  515. default n
  516. config RAPIDIO
  517. bool "RapidIO support"
  518. depends on HAS_RAPIDIO
  519. help
  520. If you say Y here, the kernel will include drivers and
  521. infrastructure code to support RapidIO interconnect devices.
  522. source "drivers/rapidio/Kconfig"
  523. endmenu
  524. menu "Advanced setup"
  525. depends on PPC32
  526. config ADVANCED_OPTIONS
  527. bool "Prompt for advanced kernel configuration options"
  528. help
  529. This option will enable prompting for a variety of advanced kernel
  530. configuration options. These options can cause the kernel to not
  531. work if they are set incorrectly, but can be used to optimize certain
  532. aspects of kernel memory management.
  533. Unless you know what you are doing, say N here.
  534. comment "Default settings for advanced configuration options are used"
  535. depends on !ADVANCED_OPTIONS
  536. config LOWMEM_SIZE_BOOL
  537. bool "Set maximum low memory"
  538. depends on ADVANCED_OPTIONS
  539. help
  540. This option allows you to set the maximum amount of memory which
  541. will be used as "low memory", that is, memory which the kernel can
  542. access directly, without having to set up a kernel virtual mapping.
  543. This can be useful in optimizing the layout of kernel virtual
  544. memory.
  545. Say N here unless you know what you are doing.
  546. config LOWMEM_SIZE
  547. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  548. default "0x30000000"
  549. config RELOCATABLE
  550. bool "Build a relocatable kernel (EXPERIMENTAL)"
  551. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  552. help
  553. This builds a kernel image that is capable of running at the
  554. location the kernel is loaded at (some alignment restrictions may
  555. exist).
  556. One use is for the kexec on panic case where the recovery kernel
  557. must live at a different physical address than the primary
  558. kernel.
  559. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  560. it has been loaded at and the compile time physical addresses
  561. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  562. setting can still be useful to bootwrappers that need to know the
  563. load location of the kernel (eg. u-boot/mkimage).
  564. config PAGE_OFFSET_BOOL
  565. bool "Set custom page offset address"
  566. depends on ADVANCED_OPTIONS
  567. help
  568. This option allows you to set the kernel virtual address at which
  569. the kernel will map low memory. This can be useful in optimizing
  570. the virtual memory layout of the system.
  571. Say N here unless you know what you are doing.
  572. config PAGE_OFFSET
  573. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  574. default "0xc0000000"
  575. config KERNEL_START_BOOL
  576. bool "Set custom kernel base address"
  577. depends on ADVANCED_OPTIONS
  578. help
  579. This option allows you to set the kernel virtual address at which
  580. the kernel will be loaded. Normally this should match PAGE_OFFSET
  581. however there are times (like kdump) that one might not want them
  582. to be the same.
  583. Say N here unless you know what you are doing.
  584. config KERNEL_START
  585. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  586. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  587. default "0xc2000000" if CRASH_DUMP
  588. default "0xc0000000"
  589. config PHYSICAL_START_BOOL
  590. bool "Set physical address where the kernel is loaded"
  591. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  592. help
  593. This gives the physical address where the kernel is loaded.
  594. Say N here unless you know what you are doing.
  595. config PHYSICAL_START
  596. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  597. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP
  598. default "0x00000000"
  599. config PHYSICAL_ALIGN
  600. hex
  601. default "0x10000000" if FSL_BOOKE
  602. help
  603. This value puts the alignment restrictions on physical address
  604. where kernel is loaded and run from. Kernel is compiled for an
  605. address which meets above alignment restriction.
  606. config TASK_SIZE_BOOL
  607. bool "Set custom user task size"
  608. depends on ADVANCED_OPTIONS
  609. help
  610. This option allows you to set the amount of virtual address space
  611. allocated to user tasks. This can be useful in optimizing the
  612. virtual memory layout of the system.
  613. Say N here unless you know what you are doing.
  614. config TASK_SIZE
  615. hex "Size of user task space" if TASK_SIZE_BOOL
  616. default "0x80000000" if PPC_PREP || PPC_8xx
  617. default "0xc0000000"
  618. config CONSISTENT_START_BOOL
  619. bool "Set custom consistent memory pool address"
  620. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  621. help
  622. This option allows you to set the base virtual address
  623. of the consistent memory pool. This pool of virtual
  624. memory is used to make consistent memory allocations.
  625. config CONSISTENT_START
  626. hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
  627. default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
  628. default "0xff100000" if NOT_COHERENT_CACHE
  629. config CONSISTENT_SIZE_BOOL
  630. bool "Set custom consistent memory pool size"
  631. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  632. help
  633. This option allows you to set the size of the
  634. consistent memory pool. This pool of virtual memory
  635. is used to make consistent memory allocations.
  636. config CONSISTENT_SIZE
  637. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  638. default "0x00200000" if NOT_COHERENT_CACHE
  639. config PIN_TLB
  640. bool "Pinned Kernel TLBs (860 ONLY)"
  641. depends on ADVANCED_OPTIONS && 8xx
  642. endmenu
  643. if PPC64
  644. config RELOCATABLE
  645. bool "Build a relocatable kernel"
  646. help
  647. This builds a kernel image that is capable of running anywhere
  648. in the RMA (real memory area) at any 16k-aligned base address.
  649. The kernel is linked as a position-independent executable (PIE)
  650. and contains dynamic relocations which are processed early
  651. in the bootup process.
  652. One use is for the kexec on panic case where the recovery kernel
  653. must live at a different physical address than the primary
  654. kernel.
  655. config PAGE_OFFSET
  656. hex
  657. default "0xc000000000000000"
  658. config KERNEL_START
  659. hex
  660. default "0xc000000000000000"
  661. config PHYSICAL_START
  662. hex
  663. default "0x00000000"
  664. endif
  665. source "net/Kconfig"
  666. source "drivers/Kconfig"
  667. source "fs/Kconfig"
  668. # XXX source "arch/ppc/8xx_io/Kconfig"
  669. # XXX source "arch/ppc/8260_io/Kconfig"
  670. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  671. source "lib/Kconfig"
  672. source "arch/powerpc/Kconfig.debug"
  673. source "security/Kconfig"
  674. config KEYS_COMPAT
  675. bool
  676. depends on COMPAT && KEYS
  677. default y
  678. source "crypto/Kconfig"
  679. config PPC_CLOCK
  680. bool
  681. default n
  682. select HAVE_CLK
  683. config PPC_LIB_RHEAP
  684. bool
  685. source "arch/powerpc/kvm/Kconfig"