Kconfig 28 KB

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  1. source "arch/powerpc/platforms/Kconfig.cputype"
  2. config PPC32
  3. bool
  4. default y if !PPC64
  5. config 32BIT
  6. bool
  7. default y if PPC32
  8. config 64BIT
  9. bool
  10. default y if PPC64
  11. config WORD_SIZE
  12. int
  13. default 64 if PPC64
  14. default 32 if !PPC64
  15. config ARCH_PHYS_ADDR_T_64BIT
  16. def_bool PPC64 || PHYS_64BIT
  17. config ARCH_DMA_ADDR_T_64BIT
  18. def_bool ARCH_PHYS_ADDR_T_64BIT
  19. config MMU
  20. bool
  21. default y
  22. config HAVE_SETUP_PER_CPU_AREA
  23. def_bool PPC64
  24. config NEED_PER_CPU_EMBED_FIRST_CHUNK
  25. def_bool PPC64
  26. config NR_IRQS
  27. int "Number of virtual interrupt numbers"
  28. range 32 32768
  29. default "512"
  30. help
  31. This defines the number of virtual interrupt numbers the kernel
  32. can manage. Virtual interrupt numbers are what you see in
  33. /proc/interrupts. If you configure your system to have too few,
  34. drivers will fail to load or worse - handle with care.
  35. config STACKTRACE_SUPPORT
  36. bool
  37. default y
  38. config HAVE_LATENCYTOP_SUPPORT
  39. def_bool y
  40. config TRACE_IRQFLAGS_SUPPORT
  41. bool
  42. default y
  43. config LOCKDEP_SUPPORT
  44. bool
  45. default y
  46. config RWSEM_GENERIC_SPINLOCK
  47. bool
  48. config RWSEM_XCHGADD_ALGORITHM
  49. bool
  50. default y
  51. config GENERIC_LOCKBREAK
  52. bool
  53. default y
  54. depends on SMP && PREEMPT
  55. config ARCH_HAS_ILOG2_U32
  56. bool
  57. default y
  58. config ARCH_HAS_ILOG2_U64
  59. bool
  60. default y if 64BIT
  61. config GENERIC_HWEIGHT
  62. bool
  63. default y
  64. config PPC
  65. bool
  66. default y
  67. select ARCH_MIGHT_HAVE_PC_PARPORT
  68. select ARCH_MIGHT_HAVE_PC_SERIO
  69. select BINFMT_ELF
  70. select OF
  71. select OF_EARLY_FLATTREE
  72. select OF_RESERVED_MEM
  73. select HAVE_FTRACE_MCOUNT_RECORD
  74. select HAVE_DYNAMIC_FTRACE
  75. select HAVE_FUNCTION_TRACER
  76. select HAVE_FUNCTION_GRAPH_TRACER
  77. select SYSCTL_EXCEPTION_TRACE
  78. select ARCH_WANT_OPTIONAL_GPIOLIB
  79. select VIRT_TO_BUS if !PPC64
  80. select HAVE_IDE
  81. select HAVE_IOREMAP_PROT
  82. select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
  83. select HAVE_KPROBES
  84. select HAVE_ARCH_KGDB
  85. select HAVE_KRETPROBES
  86. select HAVE_ARCH_TRACEHOOK
  87. select HAVE_MEMBLOCK
  88. select HAVE_MEMBLOCK_NODE_MAP
  89. select HAVE_DMA_ATTRS
  90. select HAVE_DMA_API_DEBUG
  91. select HAVE_OPROFILE
  92. select HAVE_DEBUG_KMEMLEAK
  93. select ARCH_HAS_SG_CHAIN
  94. select GENERIC_ATOMIC64 if PPC32
  95. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  96. select HAVE_PERF_EVENTS
  97. select HAVE_REGS_AND_STACK_ACCESS_API
  98. select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
  99. select ARCH_WANT_IPC_PARSE_VERSION
  100. select SPARSE_IRQ
  101. select IRQ_DOMAIN
  102. select GENERIC_IRQ_SHOW
  103. select GENERIC_IRQ_SHOW_LEVEL
  104. select IRQ_FORCED_THREADING
  105. select HAVE_RCU_TABLE_FREE if SMP
  106. select HAVE_SYSCALL_TRACEPOINTS
  107. select HAVE_BPF_JIT if PPC64
  108. select HAVE_ARCH_JUMP_LABEL
  109. select ARCH_HAVE_NMI_SAFE_CMPXCHG
  110. select GENERIC_SMP_IDLE_THREAD
  111. select GENERIC_CMOS_UPDATE
  112. select GENERIC_TIME_VSYSCALL_OLD
  113. select GENERIC_CLOCKEVENTS
  114. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  115. select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
  116. select GENERIC_STRNCPY_FROM_USER
  117. select GENERIC_STRNLEN_USER
  118. select HAVE_MOD_ARCH_SPECIFIC
  119. select MODULES_USE_ELF_RELA
  120. select CLONE_BACKWARDS
  121. select ARCH_USE_BUILTIN_BSWAP
  122. select OLD_SIGSUSPEND
  123. select OLD_SIGACTION if PPC32
  124. select HAVE_DEBUG_STACKOVERFLOW
  125. select HAVE_IRQ_EXIT_ON_IRQ_STACK
  126. select ARCH_USE_CMPXCHG_LOCKREF if PPC64
  127. select HAVE_ARCH_AUDITSYSCALL
  128. select ARCH_SUPPORTS_ATOMIC_RMW
  129. select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
  130. config GENERIC_CSUM
  131. def_bool CPU_LITTLE_ENDIAN
  132. config EARLY_PRINTK
  133. bool
  134. default y
  135. config PANIC_TIMEOUT
  136. int
  137. default 180
  138. config COMPAT
  139. bool
  140. default y if PPC64
  141. select COMPAT_BINFMT_ELF
  142. select ARCH_WANT_OLD_COMPAT_IPC
  143. select COMPAT_OLD_SIGACTION
  144. config SYSVIPC_COMPAT
  145. bool
  146. depends on COMPAT && SYSVIPC
  147. default y
  148. # All PPC32s use generic nvram driver through ppc_md
  149. config GENERIC_NVRAM
  150. bool
  151. default y if PPC32
  152. config SCHED_OMIT_FRAME_POINTER
  153. bool
  154. default y
  155. config ARCH_MAY_HAVE_PC_FDC
  156. bool
  157. default PCI
  158. config PPC_OF
  159. def_bool y
  160. config PPC_UDBG_16550
  161. bool
  162. default n
  163. config GENERIC_TBSYNC
  164. bool
  165. default y if PPC32 && SMP
  166. default n
  167. config AUDIT_ARCH
  168. bool
  169. default y
  170. config GENERIC_BUG
  171. bool
  172. default y
  173. depends on BUG
  174. config SYS_SUPPORTS_APM_EMULATION
  175. default y if PMAC_APM_EMU
  176. bool
  177. config EPAPR_BOOT
  178. bool
  179. help
  180. Used to allow a board to specify it wants an ePAPR compliant wrapper.
  181. default n
  182. config DEFAULT_UIMAGE
  183. bool
  184. help
  185. Used to allow a board to specify it wants a uImage built by default
  186. default n
  187. config ARCH_HIBERNATION_POSSIBLE
  188. bool
  189. default y
  190. config ARCH_SUSPEND_POSSIBLE
  191. def_bool y
  192. depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
  193. (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
  194. || 44x || 40x
  195. config PPC_DCR_NATIVE
  196. bool
  197. default n
  198. config PPC_DCR_MMIO
  199. bool
  200. default n
  201. config PPC_DCR
  202. bool
  203. depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
  204. default y
  205. config PPC_OF_PLATFORM_PCI
  206. bool
  207. depends on PCI
  208. depends on PPC64 # not supported on 32 bits yet
  209. default n
  210. config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  211. def_bool y
  212. config ARCH_SUPPORTS_UPROBES
  213. def_bool y
  214. config PPC_ADV_DEBUG_REGS
  215. bool
  216. depends on 40x || BOOKE
  217. default y
  218. config PPC_ADV_DEBUG_IACS
  219. int
  220. depends on PPC_ADV_DEBUG_REGS
  221. default 4 if 44x
  222. default 2
  223. config PPC_ADV_DEBUG_DACS
  224. int
  225. depends on PPC_ADV_DEBUG_REGS
  226. default 2
  227. config PPC_ADV_DEBUG_DVCS
  228. int
  229. depends on PPC_ADV_DEBUG_REGS
  230. default 2 if 44x
  231. default 0
  232. config PPC_ADV_DEBUG_DAC_RANGE
  233. bool
  234. depends on PPC_ADV_DEBUG_REGS && 44x
  235. default y
  236. config PPC_EMULATE_SSTEP
  237. bool
  238. default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
  239. config ZONE_DMA32
  240. bool
  241. default y if PPC64
  242. source "init/Kconfig"
  243. source "kernel/Kconfig.freezer"
  244. source "arch/powerpc/sysdev/Kconfig"
  245. source "arch/powerpc/platforms/Kconfig"
  246. menu "Kernel options"
  247. config HIGHMEM
  248. bool "High memory support"
  249. depends on PPC32
  250. source kernel/Kconfig.hz
  251. source kernel/Kconfig.preempt
  252. source "fs/Kconfig.binfmt"
  253. config HUGETLB_PAGE_SIZE_VARIABLE
  254. bool
  255. depends on HUGETLB_PAGE
  256. default y
  257. config MATH_EMULATION
  258. bool "Math emulation"
  259. depends on 4xx || 8xx || PPC_MPC832x || BOOKE
  260. ---help---
  261. Some PowerPC chips designed for embedded applications do not have
  262. a floating-point unit and therefore do not implement the
  263. floating-point instructions in the PowerPC instruction set. If you
  264. say Y here, the kernel will include code to emulate a floating-point
  265. unit, which will allow programs that use floating-point
  266. instructions to run.
  267. This is also useful to emulate missing (optional) instructions
  268. such as fsqrt on cores that do have an FPU but do not implement
  269. them (such as Freescale BookE).
  270. choice
  271. prompt "Math emulation options"
  272. default MATH_EMULATION_FULL
  273. depends on MATH_EMULATION
  274. config MATH_EMULATION_FULL
  275. bool "Emulate all the floating point instructions"
  276. ---help---
  277. Select this option will enable the kernel to support to emulate
  278. all the floating point instructions. If your SoC doesn't have
  279. a FPU, you should select this.
  280. config MATH_EMULATION_HW_UNIMPLEMENTED
  281. bool "Just emulate the FPU unimplemented instructions"
  282. ---help---
  283. Select this if you know there does have a hardware FPU on your
  284. SoC, but some floating point instructions are not implemented by that.
  285. endchoice
  286. config PPC_TRANSACTIONAL_MEM
  287. bool "Transactional Memory support for POWERPC"
  288. depends on PPC_BOOK3S_64
  289. depends on SMP
  290. select ALTIVEC
  291. select VSX
  292. default n
  293. ---help---
  294. Support user-mode Transactional Memory on POWERPC.
  295. config IOMMU_HELPER
  296. def_bool PPC64
  297. config SWIOTLB
  298. bool "SWIOTLB support"
  299. default n
  300. select IOMMU_HELPER
  301. ---help---
  302. Support for IO bounce buffering for systems without an IOMMU.
  303. This allows us to DMA to the full physical address space on
  304. platforms where the size of a physical address is larger
  305. than the bus address. Not all platforms support this.
  306. config HOTPLUG_CPU
  307. bool "Support for enabling/disabling CPUs"
  308. depends on SMP && (PPC_PSERIES || \
  309. PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
  310. ---help---
  311. Say Y here to be able to disable and re-enable individual
  312. CPUs at runtime on SMP machines.
  313. Say N if you are unsure.
  314. config ARCH_CPU_PROBE_RELEASE
  315. def_bool y
  316. depends on HOTPLUG_CPU
  317. config ARCH_ENABLE_MEMORY_HOTPLUG
  318. def_bool y
  319. config ARCH_HAS_WALK_MEMORY
  320. def_bool y
  321. config ARCH_ENABLE_MEMORY_HOTREMOVE
  322. def_bool y
  323. config PPC64_SUPPORTS_MEMORY_FAILURE
  324. bool "Add support for memory hwpoison"
  325. depends on PPC_BOOK3S_64
  326. default "y" if PPC_POWERNV
  327. select ARCH_SUPPORTS_MEMORY_FAILURE
  328. config KEXEC
  329. bool "kexec system call"
  330. depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
  331. help
  332. kexec is a system call that implements the ability to shutdown your
  333. current kernel, and to start another kernel. It is like a reboot
  334. but it is independent of the system firmware. And like a reboot
  335. you can start any kernel with it, not just Linux.
  336. The name comes from the similarity to the exec system call.
  337. It is an ongoing process to be certain the hardware in a machine
  338. is properly shutdown, so do not be surprised if this code does not
  339. initially work for you. As of this writing the exact hardware
  340. interface is strongly in flux, so no good recommendation can be
  341. made.
  342. config CRASH_DUMP
  343. bool "Build a kdump crash kernel"
  344. depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
  345. select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
  346. help
  347. Build a kernel suitable for use as a kdump capture kernel.
  348. The same kernel binary can be used as production kernel and dump
  349. capture kernel.
  350. config FA_DUMP
  351. bool "Firmware-assisted dump"
  352. depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
  353. help
  354. A robust mechanism to get reliable kernel crash dump with
  355. assistance from firmware. This approach does not use kexec,
  356. instead firmware assists in booting the kdump kernel
  357. while preserving memory contents. Firmware-assisted dump
  358. is meant to be a kdump replacement offering robustness and
  359. speed not possible without system firmware assistance.
  360. If unsure, say "N"
  361. config IRQ_ALL_CPUS
  362. bool "Distribute interrupts on all CPUs by default"
  363. depends on SMP
  364. help
  365. This option gives the kernel permission to distribute IRQs across
  366. multiple CPUs. Saying N here will route all IRQs to the first
  367. CPU. Generally saying Y is safe, although some problems have been
  368. reported with SMP Power Macintoshes with this option enabled.
  369. config NUMA
  370. bool "NUMA support"
  371. depends on PPC64
  372. default y if SMP && PPC_PSERIES
  373. config NODES_SHIFT
  374. int
  375. default "8" if PPC64
  376. default "4"
  377. depends on NEED_MULTIPLE_NODES
  378. config USE_PERCPU_NUMA_NODE_ID
  379. def_bool y
  380. depends on NUMA
  381. config HAVE_MEMORYLESS_NODES
  382. def_bool y
  383. depends on NUMA
  384. config ARCH_SELECT_MEMORY_MODEL
  385. def_bool y
  386. depends on PPC64
  387. config ARCH_FLATMEM_ENABLE
  388. def_bool y
  389. depends on (PPC64 && !NUMA) || PPC32
  390. config ARCH_SPARSEMEM_ENABLE
  391. def_bool y
  392. depends on PPC64
  393. select SPARSEMEM_VMEMMAP_ENABLE
  394. config ARCH_SPARSEMEM_DEFAULT
  395. def_bool y
  396. depends on (SMP && PPC_PSERIES) || PPC_PS3
  397. config SYS_SUPPORTS_HUGETLBFS
  398. bool
  399. source "mm/Kconfig"
  400. config ARCH_MEMORY_PROBE
  401. def_bool y
  402. depends on MEMORY_HOTPLUG
  403. # Some NUMA nodes have memory ranges that span
  404. # other nodes. Even though a pfn is valid and
  405. # between a node's start and end pfns, it may not
  406. # reside on that node. See memmap_init_zone()
  407. # for details.
  408. config NODES_SPAN_OTHER_NODES
  409. def_bool y
  410. depends on NEED_MULTIPLE_NODES
  411. config PPC_HAS_HASH_64K
  412. bool
  413. depends on PPC64
  414. default n
  415. config STDBINUTILS
  416. bool "Using standard binutils settings"
  417. depends on 44x
  418. default y
  419. help
  420. Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
  421. Note, that kernel will be able to run only those applications,
  422. which had been compiled using binutils later than 2.17.50.0.3 with
  423. '-zmax-page-size' set to 256K (the default is 64K). Or, if using
  424. the older binutils, you can patch them with a trivial patch, which
  425. changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
  426. choice
  427. prompt "Page size"
  428. default PPC_4K_PAGES
  429. help
  430. Select the kernel logical page size. Increasing the page size
  431. will reduce software overhead at each page boundary, allow
  432. hardware prefetch mechanisms to be more effective, and allow
  433. larger dma transfers increasing IO efficiency and reducing
  434. overhead. However the utilization of memory will increase.
  435. For example, each cached file will using a multiple of the
  436. page size to hold its contents and the difference between the
  437. end of file and the end of page is wasted.
  438. Some dedicated systems, such as software raid serving with
  439. accelerated calculations, have shown significant increases.
  440. If you configure a 64 bit kernel for 64k pages but the
  441. processor does not support them, then the kernel will simulate
  442. them with 4k pages, loading them on demand, but with the
  443. reduced software overhead and larger internal fragmentation.
  444. For the 32 bit kernel, a large page option will not be offered
  445. unless it is supported by the configured processor.
  446. If unsure, choose 4K_PAGES.
  447. config PPC_4K_PAGES
  448. bool "4k page size"
  449. config PPC_16K_PAGES
  450. bool "16k page size" if 44x
  451. config PPC_64K_PAGES
  452. bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
  453. depends on !PPC_FSL_BOOK3E
  454. select PPC_HAS_HASH_64K if PPC_STD_MMU_64
  455. config PPC_256K_PAGES
  456. bool "256k page size" if 44x
  457. depends on !STDBINUTILS
  458. help
  459. Make the page size 256k.
  460. As the ELF standard only requires alignment to support page
  461. sizes up to 64k, you will need to compile all of your user
  462. space applications with a non-standard binutils settings
  463. (see the STDBINUTILS description for details).
  464. Say N unless you know what you are doing.
  465. endchoice
  466. config FORCE_MAX_ZONEORDER
  467. int "Maximum zone order"
  468. range 9 64 if PPC64 && PPC_64K_PAGES
  469. default "9" if PPC64 && PPC_64K_PAGES
  470. range 13 64 if PPC64 && !PPC_64K_PAGES
  471. default "13" if PPC64 && !PPC_64K_PAGES
  472. range 9 64 if PPC32 && PPC_16K_PAGES
  473. default "9" if PPC32 && PPC_16K_PAGES
  474. range 7 64 if PPC32 && PPC_64K_PAGES
  475. default "7" if PPC32 && PPC_64K_PAGES
  476. range 5 64 if PPC32 && PPC_256K_PAGES
  477. default "5" if PPC32 && PPC_256K_PAGES
  478. range 11 64
  479. default "11"
  480. help
  481. The kernel memory allocator divides physically contiguous memory
  482. blocks into "zones", where each zone is a power of two number of
  483. pages. This option selects the largest power of two that the kernel
  484. keeps in the memory allocator. If you need to allocate very large
  485. blocks of physically contiguous memory, then you may need to
  486. increase this value.
  487. This config option is actually maximum order plus one. For example,
  488. a value of 11 means that the largest free memory block is 2^10 pages.
  489. The page size is not necessarily 4KB. For example, on 64-bit
  490. systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
  491. this in mind when choosing a value for this option.
  492. config PPC_SUBPAGE_PROT
  493. bool "Support setting protections for 4k subpages"
  494. depends on PPC_STD_MMU_64 && PPC_64K_PAGES
  495. help
  496. This option adds support for a system call to allow user programs
  497. to set access permissions (read/write, readonly, or no access)
  498. on the 4k subpages of each 64k page.
  499. config PPC_COPRO_BASE
  500. bool
  501. default n
  502. config SCHED_SMT
  503. bool "SMT (Hyperthreading) scheduler support"
  504. depends on PPC64 && SMP
  505. help
  506. SMT scheduler support improves the CPU scheduler's decision making
  507. when dealing with POWER5 cpus at a cost of slightly increased
  508. overhead in some places. If unsure say N here.
  509. config PPC_DENORMALISATION
  510. bool "PowerPC denormalisation exception handling"
  511. depends on PPC_BOOK3S_64
  512. default "y" if PPC_POWERNV
  513. ---help---
  514. Add support for handling denormalisation of single precision
  515. values. Useful for bare metal only. If unsure say Y here.
  516. config CMDLINE_BOOL
  517. bool "Default bootloader kernel arguments"
  518. config CMDLINE
  519. string "Initial kernel command string"
  520. depends on CMDLINE_BOOL
  521. default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
  522. help
  523. On some platforms, there is currently no way for the boot loader to
  524. pass arguments to the kernel. For these platforms, you can supply
  525. some command-line options at build time by entering them here. In
  526. most cases you will need to specify the root device here.
  527. config CMDLINE_FORCE
  528. bool "Always use the default kernel command string"
  529. depends on CMDLINE_BOOL
  530. help
  531. Always use the default kernel command string, even if the boot
  532. loader passes other arguments to the kernel.
  533. This is useful if you cannot or don't want to change the
  534. command-line options your boot loader passes to the kernel.
  535. config EXTRA_TARGETS
  536. string "Additional default image types"
  537. help
  538. List additional targets to be built by the bootwrapper here (separated
  539. by spaces). This is useful for targets that depend of device tree
  540. files in the .dts directory.
  541. Targets in this list will be build as part of the default build
  542. target, or when the user does a 'make zImage' or a
  543. 'make zImage.initrd'.
  544. If unsure, leave blank
  545. config ARCH_WANTS_FREEZER_CONTROL
  546. def_bool y
  547. depends on ADB_PMU
  548. source kernel/power/Kconfig
  549. config SECCOMP
  550. bool "Enable seccomp to safely compute untrusted bytecode"
  551. depends on PROC_FS
  552. default y
  553. help
  554. This kernel feature is useful for number crunching applications
  555. that may need to compute untrusted bytecode during their
  556. execution. By using pipes or other transports made available to
  557. the process as file descriptors supporting the read/write
  558. syscalls, it's possible to isolate those applications in
  559. their own address space using seccomp. Once seccomp is
  560. enabled via /proc/<pid>/seccomp, it cannot be disabled
  561. and the task is only allowed to execute a few safe syscalls
  562. defined by each seccomp mode.
  563. If unsure, say Y. Only embedded should say N here.
  564. endmenu
  565. config ISA_DMA_API
  566. bool
  567. default PCI
  568. menu "Bus options"
  569. config ISA
  570. bool "Support for ISA-bus hardware"
  571. depends on PPC_CHRP
  572. select PPC_I8259
  573. help
  574. Find out whether you have ISA slots on your motherboard. ISA is the
  575. name of a bus system, i.e. the way the CPU talks to the other stuff
  576. inside your box. If you have an Apple machine, say N here; if you
  577. have an IBM RS/6000 or pSeries machine, say Y. If you have an
  578. embedded board, consult your board documentation.
  579. config ZONE_DMA
  580. bool
  581. default y
  582. config NEED_DMA_MAP_STATE
  583. def_bool (PPC64 || NOT_COHERENT_CACHE)
  584. config NEED_SG_DMA_LENGTH
  585. def_bool y
  586. config GENERIC_ISA_DMA
  587. bool
  588. depends on ISA_DMA_API
  589. default y
  590. config PPC_INDIRECT_PCI
  591. bool
  592. depends on PCI
  593. default y if 40x || 44x
  594. default n
  595. config EISA
  596. bool
  597. config SBUS
  598. bool
  599. config FSL_SOC
  600. bool
  601. config FSL_PCI
  602. bool
  603. select PPC_INDIRECT_PCI
  604. select PCI_QUIRKS
  605. config FSL_PMC
  606. bool
  607. default y
  608. depends on SUSPEND && (PPC_85xx || PPC_86xx)
  609. help
  610. Freescale MPC85xx/MPC86xx power management controller support
  611. (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
  612. config PPC4xx_CPM
  613. bool
  614. default y
  615. depends on SUSPEND && (44x || 40x)
  616. help
  617. PPC4xx Clock Power Management (CPM) support (suspend/resume).
  618. It also enables support for two different idle states (idle-wait
  619. and idle-doze).
  620. config 4xx_SOC
  621. bool
  622. config FSL_LBC
  623. bool "Freescale Local Bus support"
  624. depends on FSL_SOC
  625. help
  626. Enables reporting of errors from the Freescale local bus
  627. controller. Also contains some common code used by
  628. drivers for specific local bus peripherals.
  629. config FSL_GTM
  630. bool
  631. depends on PPC_83xx || QUICC_ENGINE || CPM2
  632. help
  633. Freescale General-purpose Timers support
  634. # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
  635. config MCA
  636. bool
  637. # Platforms that what PCI turned unconditionally just do select PCI
  638. # in their config node. Platforms that want to choose at config
  639. # time should select PPC_PCI_CHOICE
  640. config PPC_PCI_CHOICE
  641. bool
  642. config PCI
  643. bool "PCI support" if PPC_PCI_CHOICE
  644. default y if !40x && !CPM2 && !8xx && !PPC_83xx \
  645. && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
  646. default PCI_QSPAN if !4xx && !CPM2 && 8xx
  647. select GENERIC_PCI_IOMAP
  648. help
  649. Find out whether your system includes a PCI bus. PCI is the name of
  650. a bus system, i.e. the way the CPU talks to the other stuff inside
  651. your box. If you say Y here, the kernel will include drivers and
  652. infrastructure code to support PCI bus devices.
  653. config PCI_DOMAINS
  654. def_bool PCI
  655. config PCI_SYSCALL
  656. def_bool PCI
  657. config PCI_QSPAN
  658. bool "QSpan PCI"
  659. depends on !4xx && !CPM2 && 8xx
  660. select PPC_I8259
  661. help
  662. Say Y here if you have a system based on a Motorola 8xx-series
  663. embedded processor with a QSPAN PCI interface, otherwise say N.
  664. config PCI_8260
  665. bool
  666. depends on PCI && 8260
  667. select PPC_INDIRECT_PCI
  668. default y
  669. source "drivers/pci/pcie/Kconfig"
  670. source "drivers/pci/Kconfig"
  671. source "drivers/pcmcia/Kconfig"
  672. source "drivers/pci/hotplug/Kconfig"
  673. config HAS_RAPIDIO
  674. bool
  675. default n
  676. config RAPIDIO
  677. tristate "RapidIO support"
  678. depends on HAS_RAPIDIO || PCI
  679. help
  680. If you say Y here, the kernel will include drivers and
  681. infrastructure code to support RapidIO interconnect devices.
  682. config FSL_RIO
  683. bool "Freescale Embedded SRIO Controller support"
  684. depends on RAPIDIO = y && HAS_RAPIDIO
  685. default "n"
  686. ---help---
  687. Include support for RapidIO controller on Freescale embedded
  688. processors (MPC8548, MPC8641, etc).
  689. source "drivers/rapidio/Kconfig"
  690. endmenu
  691. config NONSTATIC_KERNEL
  692. bool
  693. default n
  694. menu "Advanced setup"
  695. depends on PPC32
  696. config ADVANCED_OPTIONS
  697. bool "Prompt for advanced kernel configuration options"
  698. help
  699. This option will enable prompting for a variety of advanced kernel
  700. configuration options. These options can cause the kernel to not
  701. work if they are set incorrectly, but can be used to optimize certain
  702. aspects of kernel memory management.
  703. Unless you know what you are doing, say N here.
  704. comment "Default settings for advanced configuration options are used"
  705. depends on !ADVANCED_OPTIONS
  706. config LOWMEM_SIZE_BOOL
  707. bool "Set maximum low memory"
  708. depends on ADVANCED_OPTIONS
  709. help
  710. This option allows you to set the maximum amount of memory which
  711. will be used as "low memory", that is, memory which the kernel can
  712. access directly, without having to set up a kernel virtual mapping.
  713. This can be useful in optimizing the layout of kernel virtual
  714. memory.
  715. Say N here unless you know what you are doing.
  716. config LOWMEM_SIZE
  717. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  718. default "0x30000000"
  719. config LOWMEM_CAM_NUM_BOOL
  720. bool "Set number of CAMs to use to map low memory"
  721. depends on ADVANCED_OPTIONS && FSL_BOOKE
  722. help
  723. This option allows you to set the maximum number of CAM slots that
  724. will be used to map low memory. There are a limited number of slots
  725. available and even more limited number that will fit in the L1 MMU.
  726. However, using more entries will allow mapping more low memory. This
  727. can be useful in optimizing the layout of kernel virtual memory.
  728. Say N here unless you know what you are doing.
  729. config LOWMEM_CAM_NUM
  730. depends on FSL_BOOKE
  731. int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
  732. default 3
  733. config DYNAMIC_MEMSTART
  734. bool "Enable page aligned dynamic load address for kernel"
  735. depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
  736. select NONSTATIC_KERNEL
  737. help
  738. This option enables the kernel to be loaded at any page aligned
  739. physical address. The kernel creates a mapping from KERNELBASE to
  740. the address where the kernel is loaded. The page size here implies
  741. the TLB page size of the mapping for kernel on the particular platform.
  742. Please refer to the init code for finding the TLB page size.
  743. DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
  744. kernel image, where the only restriction is the page aligned kernel
  745. load address. When this option is enabled, the compile time physical
  746. address CONFIG_PHYSICAL_START is ignored.
  747. This option is overridden by CONFIG_RELOCATABLE
  748. config RELOCATABLE
  749. bool "Build a relocatable kernel"
  750. depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
  751. select NONSTATIC_KERNEL
  752. help
  753. This builds a kernel image that is capable of running at the
  754. location the kernel is loaded at, without any alignment restrictions.
  755. This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
  756. One use is for the kexec on panic case where the recovery kernel
  757. must live at a different physical address than the primary
  758. kernel.
  759. Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
  760. it has been loaded at and the compile time physical addresses
  761. CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
  762. setting can still be useful to bootwrappers that need to know the
  763. load address of the kernel (eg. u-boot/mkimage).
  764. config RELOCATABLE_PPC32
  765. def_bool y
  766. depends on PPC32 && RELOCATABLE
  767. config PAGE_OFFSET_BOOL
  768. bool "Set custom page offset address"
  769. depends on ADVANCED_OPTIONS
  770. help
  771. This option allows you to set the kernel virtual address at which
  772. the kernel will map low memory. This can be useful in optimizing
  773. the virtual memory layout of the system.
  774. Say N here unless you know what you are doing.
  775. config PAGE_OFFSET
  776. hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
  777. default "0xc0000000"
  778. config KERNEL_START_BOOL
  779. bool "Set custom kernel base address"
  780. depends on ADVANCED_OPTIONS
  781. help
  782. This option allows you to set the kernel virtual address at which
  783. the kernel will be loaded. Normally this should match PAGE_OFFSET
  784. however there are times (like kdump) that one might not want them
  785. to be the same.
  786. Say N here unless you know what you are doing.
  787. config KERNEL_START
  788. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  789. default PAGE_OFFSET if PAGE_OFFSET_BOOL
  790. default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
  791. default "0xc0000000"
  792. config PHYSICAL_START_BOOL
  793. bool "Set physical address where the kernel is loaded"
  794. depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
  795. help
  796. This gives the physical address where the kernel is loaded.
  797. Say N here unless you know what you are doing.
  798. config PHYSICAL_START
  799. hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
  800. default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
  801. default "0x00000000"
  802. config PHYSICAL_ALIGN
  803. hex
  804. default "0x04000000" if FSL_BOOKE
  805. help
  806. This value puts the alignment restrictions on physical address
  807. where kernel is loaded and run from. Kernel is compiled for an
  808. address which meets above alignment restriction.
  809. config TASK_SIZE_BOOL
  810. bool "Set custom user task size"
  811. depends on ADVANCED_OPTIONS
  812. help
  813. This option allows you to set the amount of virtual address space
  814. allocated to user tasks. This can be useful in optimizing the
  815. virtual memory layout of the system.
  816. Say N here unless you know what you are doing.
  817. config TASK_SIZE
  818. hex "Size of user task space" if TASK_SIZE_BOOL
  819. default "0x80000000" if PPC_8xx
  820. default "0xc0000000"
  821. config CONSISTENT_SIZE_BOOL
  822. bool "Set custom consistent memory pool size"
  823. depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
  824. help
  825. This option allows you to set the size of the
  826. consistent memory pool. This pool of virtual memory
  827. is used to make consistent memory allocations.
  828. config CONSISTENT_SIZE
  829. hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
  830. default "0x00200000" if NOT_COHERENT_CACHE
  831. config PIN_TLB
  832. bool "Pinned Kernel TLBs (860 ONLY)"
  833. depends on ADVANCED_OPTIONS && 8xx
  834. endmenu
  835. if PPC64
  836. config RELOCATABLE
  837. bool "Build a relocatable kernel"
  838. depends on !COMPILE_TEST
  839. select NONSTATIC_KERNEL
  840. help
  841. This builds a kernel image that is capable of running anywhere
  842. in the RMA (real memory area) at any 16k-aligned base address.
  843. The kernel is linked as a position-independent executable (PIE)
  844. and contains dynamic relocations which are processed early
  845. in the bootup process.
  846. One use is for the kexec on panic case where the recovery kernel
  847. must live at a different physical address than the primary
  848. kernel.
  849. # This value must have zeroes in the bottom 60 bits otherwise lots will break
  850. config PAGE_OFFSET
  851. hex
  852. default "0xc000000000000000"
  853. config KERNEL_START
  854. hex
  855. default "0xc000000000000000"
  856. config PHYSICAL_START
  857. hex
  858. default "0x00000000"
  859. endif
  860. config ARCH_RANDOM
  861. def_bool n
  862. source "net/Kconfig"
  863. source "drivers/Kconfig"
  864. source "fs/Kconfig"
  865. source "arch/powerpc/sysdev/qe_lib/Kconfig"
  866. source "lib/Kconfig"
  867. source "arch/powerpc/Kconfig.debug"
  868. source "security/Kconfig"
  869. config KEYS_COMPAT
  870. bool
  871. depends on COMPAT && KEYS
  872. default y
  873. source "crypto/Kconfig"
  874. config PPC_LIB_RHEAP
  875. bool
  876. source "arch/powerpc/kvm/Kconfig"