Kconfig 26 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007
  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_DMA_ATTRS
  98. select HAVE_DMA_API_DEBUG
  99. select USE_GENERIC_SMP_HELPERS if SMP
  100. select HAVE_OPROFILE
  101. select HAVE_SYSCALL_WRAPPERS if PPC64
  102. select GENERIC_ATOMIC64 if PPC32
  103. select HAVE_IRQ_WORK
  104. select HAVE_PERF_EVENTS
  105. select HAVE_REGS_AND_STACK_ACCESS_API
  106. select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
  107. select HAVE_GENERIC_HARDIRQS
  108. select HAVE_SPARSE_IRQ
  109. select IRQ_PER_CPU
  110. select GENERIC_IRQ_SHOW
  111. select GENERIC_IRQ_SHOW_LEVEL
  112. select IRQ_FORCED_THREADING
  113. select HAVE_RCU_TABLE_FREE if SMP
  114. select HAVE_SYSCALL_TRACEPOINTS
  115. select HAVE_BPF_JIT if (PPC64 && NET)
  116. select HAVE_ARCH_JUMP_LABEL
  117. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  118. config EARLY_PRINTK
  119. bool
  120. default y
  121. config COMPAT
  122. bool
  123. default y if PPC64
  124. select COMPAT_BINFMT_ELF
  125. config SYSVIPC_COMPAT
  126. bool
  127. depends on COMPAT && SYSVIPC
  128. default y
  129. # All PPC32s use generic nvram driver through ppc_md
  130. config GENERIC_NVRAM
  131. bool
  132. default y if PPC32
  133. config SCHED_OMIT_FRAME_POINTER
  134. bool
  135. default y
  136. config ARCH_MAY_HAVE_PC_FDC
  137. bool
  138. default !PPC_PSERIES || PCI
  139. config PPC_OF
  140. def_bool y
  141. config PPC_UDBG_16550
  142. bool
  143. default n
  144. config GENERIC_TBSYNC
  145. bool
  146. default y if PPC32 && SMP
  147. default n
  148. config AUDIT_ARCH
  149. bool
  150. default y
  151. config GENERIC_BUG
  152. bool
  153. default y
  154. depends on BUG
  155. config SYS_SUPPORTS_APM_EMULATION
  156. default y if PMAC_APM_EMU
  157. bool
  158. config EPAPR_BOOT
  159. bool
  160. help
  161. Used to allow a board to specify it wants an ePAPR compliant wrapper.
  162. default n
  163. config DEFAULT_UIMAGE
  164. bool
  165. help
  166. Used to allow a board to specify it wants a uImage built by default
  167. default n
  168. config REDBOOT
  169. bool
  170. config ARCH_HIBERNATION_POSSIBLE
  171. bool
  172. default y
  173. config ARCH_SUSPEND_POSSIBLE
  174. def_bool y
  175. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
  176. (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x
  177. config PPC_DCR_NATIVE
  178. bool
  179. default n
  180. config PPC_DCR_MMIO
  181. bool
  182. default n
  183. config PPC_DCR
  184. bool
  185. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  186. default y
  187. config PPC_OF_PLATFORM_PCI
  188. bool
  189. depends on PCI
  190. depends on PPC64 # not supported on 32 bits yet
  191. default n
  192. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  193. def_bool y
  194. config PPC_ADV_DEBUG_REGS
  195. bool
  196. depends on 40x || BOOKE
  197. default y
  198. config PPC_ADV_DEBUG_IACS
  199. int
  200. depends on PPC_ADV_DEBUG_REGS
  201. default 4 if 44x
  202. default 2
  203. config PPC_ADV_DEBUG_DACS
  204. int
  205. depends on PPC_ADV_DEBUG_REGS
  206. default 2
  207. config PPC_ADV_DEBUG_DVCS
  208. int
  209. depends on PPC_ADV_DEBUG_REGS
  210. default 2 if 44x
  211. default 0
  212. config PPC_ADV_DEBUG_DAC_RANGE
  213. bool
  214. depends on PPC_ADV_DEBUG_REGS && 44x
  215. default y
  216. source "init/Kconfig"
  217. source "kernel/Kconfig.freezer"
  218. source "arch/powerpc/sysdev/Kconfig"
  219. source "arch/powerpc/platforms/Kconfig"
  220. menu "Kernel options"
  221. config HIGHMEM
  222. bool "High memory support"
  223. depends on PPC32
  224. source kernel/time/Kconfig
  225. source kernel/Kconfig.hz
  226. source kernel/Kconfig.preempt
  227. source "fs/Kconfig.binfmt"
  228. config HUGETLB_PAGE_SIZE_VARIABLE
  229. bool
  230. depends on HUGETLB_PAGE
  231. default y
  232. config MATH_EMULATION
  233. bool "Math emulation"
  234. depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
  235. ---help---
  236. Some PowerPC chips designed for embedded applications do not have
  237. a floating-point unit and therefore do not implement the
  238. floating-point instructions in the PowerPC instruction set. If you
  239. say Y here, the kernel will include code to emulate a floating-point
  240. unit, which will allow programs that use floating-point
  241. instructions to run.
  242. config 8XX_MINIMAL_FPEMU
  243. bool "Minimal math emulation for 8xx"
  244. depends on 8xx && !MATH_EMULATION
  245. help
  246. Older arch/ppc kernels still emulated a few floating point
  247. instructions such as load and store, even when full math
  248. emulation is disabled. Say "Y" here if you want to preserve
  249. this behavior.
  250. It is recommended that you build a soft-float userspace instead.
  251. config IOMMU_HELPER
  252. def_bool PPC64
  253. config SWIOTLB
  254. bool "SWIOTLB support"
  255. default n
  256. select IOMMU_HELPER
  257. ---help---
  258. Support for IO bounce buffering for systems without an IOMMU.
  259. This allows us to DMA to the full physical address space on
  260. platforms where the size of a physical address is larger
  261. than the bus address. Not all platforms support this.
  262. config HOTPLUG_CPU
  263. bool "Support for enabling/disabling CPUs"
  264. depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV)
  265. ---help---
  266. Say Y here to be able to disable and re-enable individual
  267. CPUs at runtime on SMP machines.
  268. Say N if you are unsure.
  269. config ARCH_CPU_PROBE_RELEASE
  270. def_bool y
  271. depends on HOTPLUG_CPU
  272. config ARCH_ENABLE_MEMORY_HOTPLUG
  273. def_bool y
  274. config ARCH_HAS_WALK_MEMORY
  275. def_bool y
  276. config ARCH_ENABLE_MEMORY_HOTREMOVE
  277. def_bool y
  278. config KEXEC
  279. bool "kexec system call (EXPERIMENTAL)"
  280. depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
  281. help
  282. kexec is a system call that implements the ability to shutdown your
  283. current kernel, and to start another kernel. It is like a reboot
  284. but it is independent of the system firmware. And like a reboot
  285. you can start any kernel with it, not just Linux.
  286. The name comes from the similarity to the exec system call.
  287. It is an ongoing process to be certain the hardware in a machine
  288. is properly shutdown, so do not be surprised if this code does not
  289. initially work for you. It may help to enable device hotplugging
  290. support. As of this writing the exact hardware interface is
  291. strongly in flux, so no good recommendation can be made.
  292. config CRASH_DUMP
  293. bool "Build a kdump crash kernel"
  294. depends on PPC64 || 6xx || FSL_BOOKE
  295. select RELOCATABLE if PPC64
  296. select DYNAMIC_MEMSTART if FSL_BOOKE
  297. help
  298. Build a kernel suitable for use as a kdump capture kernel.
  299. The same kernel binary can be used as production kernel and dump
  300. capture kernel.
  301. config PHYP_DUMP
  302. bool "Hypervisor-assisted dump (EXPERIMENTAL)"
  303. depends on PPC_PSERIES && EXPERIMENTAL
  304. help
  305. Hypervisor-assisted dump is meant to be a kdump replacement
  306. offering robustness and speed not possible without system
  307. hypervisor assistance.
  308. If unsure, say "N"
  309. config IRQ_ALL_CPUS
  310. bool "Distribute interrupts on all CPUs by default"
  311. depends on SMP && !MV64360
  312. help
  313. This option gives the kernel permission to distribute IRQs across
  314. multiple CPUs. Saying N here will route all IRQs to the first
  315. CPU. Generally saying Y is safe, although some problems have been
  316. reported with SMP Power Macintoshes with this option enabled.
  317. config NUMA
  318. bool "NUMA support"
  319. depends on PPC64
  320. default y if SMP && PPC_PSERIES
  321. config NODES_SHIFT
  322. int
  323. default "8" if PPC64
  324. default "4"
  325. depends on NEED_MULTIPLE_NODES
  326. config MAX_ACTIVE_REGIONS
  327. int
  328. default "256" if PPC64
  329. default "32"
  330. config ARCH_SELECT_MEMORY_MODEL
  331. def_bool y
  332. depends on PPC64
  333. config ARCH_FLATMEM_ENABLE
  334. def_bool y
  335. depends on (PPC64 && !NUMA) || PPC32
  336. config ARCH_SPARSEMEM_ENABLE
  337. def_bool y
  338. depends on PPC64
  339. select SPARSEMEM_VMEMMAP_ENABLE
  340. config ARCH_SPARSEMEM_DEFAULT
  341. def_bool y
  342. depends on (SMP && PPC_PSERIES) || PPC_PS3
  343. config ARCH_POPULATES_NODE_MAP
  344. def_bool y
  345. config SYS_SUPPORTS_HUGETLBFS
  346. bool
  347. source "mm/Kconfig"
  348. config ARCH_MEMORY_PROBE
  349. def_bool y
  350. depends on MEMORY_HOTPLUG
  351. # Some NUMA nodes have memory ranges that span
  352. # other nodes. Even though a pfn is valid and
  353. # between a node's start and end pfns, it may not
  354. # reside on that node. See memmap_init_zone()
  355. # for details.
  356. config NODES_SPAN_OTHER_NODES
  357. def_bool y
  358. depends on NEED_MULTIPLE_NODES
  359. config PPC_HAS_HASH_64K
  360. bool
  361. depends on PPC64
  362. default n
  363. config STDBINUTILS
  364. bool "Using standard binutils settings"
  365. depends on 44x
  366. default y
  367. help
  368. Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
  369. Note, that kernel will be able to run only those applications,
  370. which had been compiled using binutils later than 2.17.50.0.3 with
  371. '-zmax-page-size' set to 256K (the default is 64K). Or, if using
  372. the older binutils, you can patch them with a trivial patch, which
  373. changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
  374. choice
  375. prompt "Page size"
  376. default PPC_4K_PAGES
  377. help
  378. Select the kernel logical page size. Increasing the page size
  379. will reduce software overhead at each page boundary, allow
  380. hardware prefetch mechanisms to be more effective, and allow
  381. larger dma transfers increasing IO efficiency and reducing
  382. overhead. However the utilization of memory will increase.
  383. For example, each cached file will using a multiple of the
  384. page size to hold its contents and the difference between the
  385. end of file and the end of page is wasted.
  386. Some dedicated systems, such as software raid serving with
  387. accelerated calculations, have shown significant increases.
  388. If you configure a 64 bit kernel for 64k pages but the
  389. processor does not support them, then the kernel will simulate
  390. them with 4k pages, loading them on demand, but with the
  391. reduced software overhead and larger internal fragmentation.
  392. For the 32 bit kernel, a large page option will not be offered
  393. unless it is supported by the configured processor.
  394. If unsure, choose 4K_PAGES.
  395. config PPC_4K_PAGES
  396. bool "4k page size"
  397. config PPC_16K_PAGES
  398. bool "16k page size" if 44x
  399. config PPC_64K_PAGES
  400. bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
  401. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  402. config PPC_256K_PAGES
  403. bool "256k page size" if 44x
  404. depends on !STDBINUTILS
  405. help
  406. Make the page size 256k.
  407. As the ELF standard only requires alignment to support page
  408. sizes up to 64k, you will need to compile all of your user
  409. space applications with a non-standard binutils settings
  410. (see the STDBINUTILS description for details).
  411. Say N unless you know what you are doing.
  412. endchoice
  413. config FORCE_MAX_ZONEORDER
  414. int "Maximum zone order"
  415. range 9 64 if PPC64 && PPC_64K_PAGES
  416. default "9" if PPC64 && PPC_64K_PAGES
  417. range 13 64 if PPC64 && !PPC_64K_PAGES
  418. default "13" if PPC64 && !PPC_64K_PAGES
  419. range 9 64 if PPC32 && PPC_16K_PAGES
  420. default "9" if PPC32 && PPC_16K_PAGES
  421. range 7 64 if PPC32 && PPC_64K_PAGES
  422. default "7" if PPC32 && PPC_64K_PAGES
  423. range 5 64 if PPC32 && PPC_256K_PAGES
  424. default "5" if PPC32 && PPC_256K_PAGES
  425. range 11 64
  426. default "11"
  427. help
  428. The kernel memory allocator divides physically contiguous memory
  429. blocks into "zones", where each zone is a power of two number of
  430. pages. This option selects the largest power of two that the kernel
  431. keeps in the memory allocator. If you need to allocate very large
  432. blocks of physically contiguous memory, then you may need to
  433. increase this value.
  434. This config option is actually maximum order plus one. For example,
  435. a value of 11 means that the largest free memory block is 2^10 pages.
  436. The page size is not necessarily 4KB. For example, on 64-bit
  437. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  438. this in mind when choosing a value for this option.
  439. config PPC_SUBPAGE_PROT
  440. bool "Support setting protections for 4k subpages"
  441. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  442. help
  443. This option adds support for a system call to allow user programs
  444. to set access permissions (read/write, readonly, or no access)
  445. on the 4k subpages of each 64k page.
  446. config SCHED_SMT
  447. bool "SMT (Hyperthreading) scheduler support"
  448. depends on PPC64 && SMP
  449. help
  450. SMT scheduler support improves the CPU scheduler's decision making
  451. when dealing with POWER5 cpus at a cost of slightly increased
  452. overhead in some places. If unsure say N here.
  453. config CMDLINE_BOOL
  454. bool "Default bootloader kernel arguments"
  455. config CMDLINE
  456. string "Initial kernel command string"
  457. depends on CMDLINE_BOOL
  458. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  459. help
  460. On some platforms, there is currently no way for the boot loader to
  461. pass arguments to the kernel. For these platforms, you can supply
  462. some command-line options at build time by entering them here. In
  463. most cases you will need to specify the root device here.
  464. config EXTRA_TARGETS
  465. string "Additional default image types"
  466. help
  467. List additional targets to be built by the bootwrapper here (separated
  468. by spaces). This is useful for targets that depend of device tree
  469. files in the .dts directory.
  470. Targets in this list will be build as part of the default build
  471. target, or when the user does a 'make zImage' or a
  472. 'make zImage.initrd'.
  473. If unsure, leave blank
  474. config ARCH_WANTS_FREEZER_CONTROL
  475. def_bool y
  476. depends on ADB_PMU
  477. source kernel/power/Kconfig
  478. config SECCOMP
  479. bool "Enable seccomp to safely compute untrusted bytecode"
  480. depends on PROC_FS
  481. default y
  482. help
  483. This kernel feature is useful for number crunching applications
  484. that may need to compute untrusted bytecode during their
  485. execution. By using pipes or other transports made available to
  486. the process as file descriptors supporting the read/write
  487. syscalls, it's possible to isolate those applications in
  488. their own address space using seccomp. Once seccomp is
  489. enabled via /proc/<pid>/seccomp, it cannot be disabled
  490. and the task is only allowed to execute a few safe syscalls
  491. defined by each seccomp mode.
  492. If unsure, say Y. Only embedded should say N here.
  493. endmenu
  494. config ISA_DMA_API
  495. bool
  496. default !PPC_ISERIES || PCI
  497. menu "Bus options"
  498. config ISA
  499. bool "Support for ISA-bus hardware"
  500. depends on PPC_PREP || PPC_CHRP
  501. select PPC_I8259
  502. help
  503. Find out whether you have ISA slots on your motherboard. ISA is the
  504. name of a bus system, i.e. the way the CPU talks to the other stuff
  505. inside your box. If you have an Apple machine, say N here; if you
  506. have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
  507. you have an embedded board, consult your board documentation.
  508. config ZONE_DMA
  509. bool
  510. default y
  511. config NEED_DMA_MAP_STATE
  512. def_bool (PPC64 || NOT_COHERENT_CACHE)
  513. config NEED_SG_DMA_LENGTH
  514. def_bool y
  515. config GENERIC_ISA_DMA
  516. bool
  517. depends on ISA_DMA_API
  518. default y
  519. config PPC_INDIRECT_PCI
  520. bool
  521. depends on PCI
  522. default y if 40x || 44x
  523. default n
  524. config EISA
  525. bool
  526. config SBUS
  527. bool
  528. config FSL_SOC
  529. bool
  530. select HAVE_CAN_FLEXCAN if NET && CAN
  531. select PPC_CLOCK if CAN_FLEXCAN
  532. config FSL_PCI
  533. bool
  534. select PPC_INDIRECT_PCI
  535. select PCI_QUIRKS
  536. config FSL_PMC
  537. bool
  538. default y
  539. depends on SUSPEND && (PPC_85xx || PPC_86xx)
  540. help
  541. Freescale MPC85xx/MPC86xx power management controller support
  542. (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
  543. config PPC4xx_CPM
  544. bool
  545. default y
  546. depends on SUSPEND && (44x || 40x)
  547. help
  548. PPC4xx Clock Power Management (CPM) support (suspend/resume).
  549. It also enables support for two different idle states (idle-wait
  550. and idle-doze).
  551. config 4xx_SOC
  552. bool
  553. config FSL_LBC
  554. bool "Freescale Local Bus support"
  555. depends on FSL_SOC
  556. help
  557. Enables reporting of errors from the Freescale local bus
  558. controller. Also contains some common code used by
  559. drivers for specific local bus peripherals.
  560. config FSL_GTM
  561. bool
  562. depends on PPC_83xx || QUICC_ENGINE || CPM2
  563. help
  564. Freescale General-purpose Timers support
  565. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  566. config MCA
  567. bool
  568. # Platforms that what PCI turned unconditionally just do select PCI
  569. # in their config node. Platforms that want to choose at config
  570. # time should select PPC_PCI_CHOICE
  571. config PPC_PCI_CHOICE
  572. bool
  573. config PCI
  574. bool "PCI support" if PPC_PCI_CHOICE
  575. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  576. && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
  577. default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
  578. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  579. select ARCH_SUPPORTS_MSI
  580. help
  581. Find out whether your system includes a PCI bus. PCI is the name of
  582. a bus system, i.e. the way the CPU talks to the other stuff inside
  583. your box. If you say Y here, the kernel will include drivers and
  584. infrastructure code to support PCI bus devices.
  585. config PCI_DOMAINS
  586. def_bool PCI
  587. config PCI_SYSCALL
  588. def_bool PCI
  589. config PCI_QSPAN
  590. bool "QSpan PCI"
  591. depends on !4xx && !CPM2 && 8xx
  592. select PPC_I8259
  593. help
  594. Say Y here if you have a system based on a Motorola 8xx-series
  595. embedded processor with a QSPAN PCI interface, otherwise say N.
  596. config PCI_8260
  597. bool
  598. depends on PCI && 8260
  599. select PPC_INDIRECT_PCI
  600. default y
  601. config 8260_PCI9
  602. bool "Enable workaround for MPC826x erratum PCI 9"
  603. depends on PCI_8260 && !8272
  604. default y
  605. source "drivers/pci/pcie/Kconfig"
  606. source "drivers/pci/Kconfig"
  607. source "drivers/pcmcia/Kconfig"
  608. source "drivers/pci/hotplug/Kconfig"
  609. config HAS_RAPIDIO
  610. bool
  611. default n
  612. config RAPIDIO
  613. bool "RapidIO support"
  614. depends on HAS_RAPIDIO || PCI
  615. help
  616. If you say Y here, the kernel will include drivers and
  617. infrastructure code to support RapidIO interconnect devices.
  618. config FSL_RIO
  619. bool "Freescale Embedded SRIO Controller support"
  620. depends on RAPIDIO && HAS_RAPIDIO
  621. default "n"
  622. ---help---
  623. Include support for RapidIO controller on Freescale embedded
  624. processors (MPC8548, MPC8641, etc).
  625. source "drivers/rapidio/Kconfig"
  626. endmenu
  627. config NONSTATIC_KERNEL
  628. bool
  629. default n
  630. menu "Advanced setup"
  631. depends on PPC32
  632. config ADVANCED_OPTIONS
  633. bool "Prompt for advanced kernel configuration options"
  634. help
  635. This option will enable prompting for a variety of advanced kernel
  636. configuration options. These options can cause the kernel to not
  637. work if they are set incorrectly, but can be used to optimize certain
  638. aspects of kernel memory management.
  639. Unless you know what you are doing, say N here.
  640. comment "Default settings for advanced configuration options are used"
  641. depends on !ADVANCED_OPTIONS
  642. config LOWMEM_SIZE_BOOL
  643. bool "Set maximum low memory"
  644. depends on ADVANCED_OPTIONS
  645. help
  646. This option allows you to set the maximum amount of memory which
  647. will be used as "low memory", that is, memory which the kernel can
  648. access directly, without having to set up a kernel virtual mapping.
  649. This can be useful in optimizing the layout of kernel virtual
  650. memory.
  651. Say N here unless you know what you are doing.
  652. config LOWMEM_SIZE
  653. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  654. default "0x30000000"
  655. config LOWMEM_CAM_NUM_BOOL
  656. bool "Set number of CAMs to use to map low memory"
  657. depends on ADVANCED_OPTIONS && FSL_BOOKE
  658. help
  659. This option allows you to set the maximum number of CAM slots that
  660. will be used to map low memory. There are a limited number of slots
  661. available and even more limited number that will fit in the L1 MMU.
  662. However, using more entries will allow mapping more low memory. This
  663. can be useful in optimizing the layout of kernel virtual memory.
  664. Say N here unless you know what you are doing.
  665. config LOWMEM_CAM_NUM
  666. depends on FSL_BOOKE
  667. int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
  668. default 3
  669. config DYNAMIC_MEMSTART
  670. bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
  671. depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
  672. select NONSTATIC_KERNEL
  673. help
  674. This option enables the kernel to be loaded at any page aligned
  675. physical address. The kernel creates a mapping from KERNELBASE to
  676. the address where the kernel is loaded. The page size here implies
  677. the TLB page size of the mapping for kernel on the particular platform.
  678. Please refer to the init code for finding the TLB page size.
  679. DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
  680. kernel image, where the only restriction is the page aligned kernel
  681. load address. When this option is enabled, the compile time physical
  682. address CONFIG_PHYSICAL_START is ignored.
  683. # Mapping based RELOCATABLE is moved to DYNAMIC_MEMSTART
  684. # config RELOCATABLE
  685. # bool "Build a relocatable kernel (EXPERIMENTAL)"
  686. # depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x)
  687. # help
  688. # This builds a kernel image that is capable of running at the
  689. # location the kernel is loaded at, without any alignment restrictions.
  690. #
  691. # One use is for the kexec on panic case where the recovery kernel
  692. # must live at a different physical address than the primary
  693. # kernel.
  694. #
  695. # Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  696. # it has been loaded at and the compile time physical addresses
  697. # CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  698. # setting can still be useful to bootwrappers that need to know the
  699. # load location of the kernel (eg. u-boot/mkimage).
  700. config PAGE_OFFSET_BOOL
  701. bool "Set custom page offset address"
  702. depends on ADVANCED_OPTIONS
  703. help
  704. This option allows you to set the kernel virtual address at which
  705. the kernel will map low memory. This can be useful in optimizing
  706. the virtual memory layout of the system.
  707. Say N here unless you know what you are doing.
  708. config PAGE_OFFSET
  709. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  710. default "0xc0000000"
  711. config KERNEL_START_BOOL
  712. bool "Set custom kernel base address"
  713. depends on ADVANCED_OPTIONS
  714. help
  715. This option allows you to set the kernel virtual address at which
  716. the kernel will be loaded. Normally this should match PAGE_OFFSET
  717. however there are times (like kdump) that one might not want them
  718. to be the same.
  719. Say N here unless you know what you are doing.
  720. config KERNEL_START
  721. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  722. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  723. default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
  724. default "0xc0000000"
  725. config PHYSICAL_START_BOOL
  726. bool "Set physical address where the kernel is loaded"
  727. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  728. help
  729. This gives the physical address where the kernel is loaded.
  730. Say N here unless you know what you are doing.
  731. config PHYSICAL_START
  732. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  733. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
  734. default "0x00000000"
  735. config PHYSICAL_ALIGN
  736. hex
  737. default "0x04000000" if FSL_BOOKE
  738. help
  739. This value puts the alignment restrictions on physical address
  740. where kernel is loaded and run from. Kernel is compiled for an
  741. address which meets above alignment restriction.
  742. config TASK_SIZE_BOOL
  743. bool "Set custom user task size"
  744. depends on ADVANCED_OPTIONS
  745. help
  746. This option allows you to set the amount of virtual address space
  747. allocated to user tasks. This can be useful in optimizing the
  748. virtual memory layout of the system.
  749. Say N here unless you know what you are doing.
  750. config TASK_SIZE
  751. hex "Size of user task space" if TASK_SIZE_BOOL
  752. default "0x80000000" if PPC_PREP || PPC_8xx
  753. default "0xc0000000"
  754. config CONSISTENT_SIZE_BOOL
  755. bool "Set custom consistent memory pool size"
  756. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  757. help
  758. This option allows you to set the size of the
  759. consistent memory pool. This pool of virtual memory
  760. is used to make consistent memory allocations.
  761. config CONSISTENT_SIZE
  762. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  763. default "0x00200000" if NOT_COHERENT_CACHE
  764. config PIN_TLB
  765. bool "Pinned Kernel TLBs (860 ONLY)"
  766. depends on ADVANCED_OPTIONS && 8xx
  767. endmenu
  768. if PPC64
  769. config RELOCATABLE
  770. bool "Build a relocatable kernel"
  771. select NONSTATIC_KERNEL
  772. help
  773. This builds a kernel image that is capable of running anywhere
  774. in the RMA (real memory area) at any 16k-aligned base address.
  775. The kernel is linked as a position-independent executable (PIE)
  776. and contains dynamic relocations which are processed early
  777. in the bootup process.
  778. One use is for the kexec on panic case where the recovery kernel
  779. must live at a different physical address than the primary
  780. kernel.
  781. config PAGE_OFFSET
  782. hex
  783. default "0xc000000000000000"
  784. config KERNEL_START
  785. hex
  786. default "0xc000000000000000"
  787. config PHYSICAL_START
  788. hex
  789. default "0x00000000"
  790. endif
  791. source "net/Kconfig"
  792. source "drivers/Kconfig"
  793. source "fs/Kconfig"
  794. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  795. source "lib/Kconfig"
  796. source "arch/powerpc/Kconfig.debug"
  797. source "security/Kconfig"
  798. config KEYS_COMPAT
  799. bool
  800. depends on COMPAT && KEYS
  801. default y
  802. source "crypto/Kconfig"
  803. config PPC_CLOCK
  804. bool
  805. default n
  806. select HAVE_CLK
  807. config PPC_LIB_RHEAP
  808. bool
  809. source "arch/powerpc/kvm/Kconfig"