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