Kconfig 4.8 KB

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  1. config ARM64
  2. def_bool y
  3. select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  4. select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
  5. select ARM_AMBA
  6. select CLONE_BACKWARDS
  7. select COMMON_CLK
  8. select GENERIC_CLOCKEVENTS
  9. select GENERIC_COMPAT_RT_SIGACTION
  10. select GENERIC_COMPAT_RT_SIGPENDING
  11. select GENERIC_COMPAT_RT_SIGPROCMASK
  12. select GENERIC_COMPAT_RT_SIGQUEUEINFO
  13. select GENERIC_HARDIRQS_NO_DEPRECATED
  14. select GENERIC_IOMAP
  15. select GENERIC_IRQ_PROBE
  16. select GENERIC_IRQ_SHOW
  17. select GENERIC_SIGALTSTACK
  18. select GENERIC_SMP_IDLE_THREAD
  19. select GENERIC_TIME_VSYSCALL
  20. select HARDIRQS_SW_RESEND
  21. select HAVE_ARCH_TRACEHOOK
  22. select HAVE_DEBUG_BUGVERBOSE
  23. select HAVE_DEBUG_KMEMLEAK
  24. select HAVE_DMA_API_DEBUG
  25. select HAVE_DMA_ATTRS
  26. select HAVE_GENERIC_DMA_COHERENT
  27. select HAVE_GENERIC_HARDIRQS
  28. select HAVE_HW_BREAKPOINT if PERF_EVENTS
  29. select HAVE_IRQ_WORK
  30. select HAVE_MEMBLOCK
  31. select HAVE_PERF_EVENTS
  32. select IRQ_DOMAIN
  33. select MODULES_USE_ELF_RELA
  34. select NO_BOOTMEM
  35. select OF
  36. select OF_EARLY_FLATTREE
  37. select PERF_USE_VMALLOC
  38. select RTC_LIB
  39. select SPARSE_IRQ
  40. select SYSCTL_EXCEPTION_TRACE
  41. help
  42. ARM 64-bit (AArch64) Linux support.
  43. config 64BIT
  44. def_bool y
  45. config ARCH_PHYS_ADDR_T_64BIT
  46. def_bool y
  47. config MMU
  48. def_bool y
  49. config NO_IOPORT
  50. def_bool y
  51. config STACKTRACE_SUPPORT
  52. def_bool y
  53. config LOCKDEP_SUPPORT
  54. def_bool y
  55. config TRACE_IRQFLAGS_SUPPORT
  56. def_bool y
  57. config GENERIC_LOCKBREAK
  58. def_bool y
  59. depends on SMP && PREEMPT
  60. config RWSEM_GENERIC_SPINLOCK
  61. def_bool y
  62. config GENERIC_HWEIGHT
  63. def_bool y
  64. config GENERIC_CSUM
  65. def_bool y
  66. config GENERIC_CALIBRATE_DELAY
  67. def_bool y
  68. config ZONE_DMA32
  69. def_bool y
  70. config ARCH_DMA_ADDR_T_64BIT
  71. def_bool y
  72. config NEED_DMA_MAP_STATE
  73. def_bool y
  74. config NEED_SG_DMA_LENGTH
  75. def_bool y
  76. config SWIOTLB
  77. def_bool y
  78. config IOMMU_HELPER
  79. def_bool SWIOTLB
  80. config GENERIC_GPIO
  81. def_bool y
  82. source "init/Kconfig"
  83. source "kernel/Kconfig.freezer"
  84. menu "System Type"
  85. endmenu
  86. menu "Bus support"
  87. config ARM_AMBA
  88. bool
  89. endmenu
  90. menu "Kernel Features"
  91. source "kernel/time/Kconfig"
  92. config ARM64_64K_PAGES
  93. bool "Enable 64KB pages support"
  94. help
  95. This feature enables 64KB pages support (4KB by default)
  96. allowing only two levels of page tables and faster TLB
  97. look-up. AArch32 emulation is not available when this feature
  98. is enabled.
  99. config SMP
  100. bool "Symmetric Multi-Processing"
  101. select USE_GENERIC_SMP_HELPERS
  102. help
  103. This enables support for systems with more than one CPU. If
  104. you say N here, the kernel will run on single and
  105. multiprocessor machines, but will use only one CPU of a
  106. multiprocessor machine. If you say Y here, the kernel will run
  107. on many, but not all, single processor machines. On a single
  108. processor machine, the kernel will run faster if you say N
  109. here.
  110. If you don't know what to do here, say N.
  111. config NR_CPUS
  112. int "Maximum number of CPUs (2-32)"
  113. range 2 32
  114. depends on SMP
  115. default "4"
  116. source kernel/Kconfig.preempt
  117. config HZ
  118. int
  119. default 100
  120. config ARCH_HAS_HOLES_MEMORYMODEL
  121. def_bool y if SPARSEMEM
  122. config ARCH_SPARSEMEM_ENABLE
  123. def_bool y
  124. select SPARSEMEM_VMEMMAP_ENABLE
  125. config ARCH_SPARSEMEM_DEFAULT
  126. def_bool ARCH_SPARSEMEM_ENABLE
  127. config ARCH_SELECT_MEMORY_MODEL
  128. def_bool ARCH_SPARSEMEM_ENABLE
  129. config HAVE_ARCH_PFN_VALID
  130. def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
  131. config HW_PERF_EVENTS
  132. bool "Enable hardware performance counter support for perf events"
  133. depends on PERF_EVENTS
  134. default y
  135. help
  136. Enable hardware performance counter support for perf events. If
  137. disabled, perf events will use software events only.
  138. source "mm/Kconfig"
  139. endmenu
  140. menu "Boot options"
  141. config CMDLINE
  142. string "Default kernel command string"
  143. default ""
  144. help
  145. Provide a set of default command-line options at build time by
  146. entering them here. As a minimum, you should specify the the
  147. root device (e.g. root=/dev/nfs).
  148. config CMDLINE_FORCE
  149. bool "Always use the default kernel command string"
  150. help
  151. Always use the default kernel command string, even if the boot
  152. loader passes other arguments to the kernel.
  153. This is useful if you cannot or don't want to change the
  154. command-line options your boot loader passes to the kernel.
  155. endmenu
  156. menu "Userspace binary formats"
  157. source "fs/Kconfig.binfmt"
  158. config COMPAT
  159. bool "Kernel support for 32-bit EL0"
  160. depends on !ARM64_64K_PAGES
  161. select COMPAT_BINFMT_ELF
  162. select HAVE_UID16
  163. select OLD_SIGSUSPEND3
  164. help
  165. This option enables support for a 32-bit EL0 running under a 64-bit
  166. kernel at EL1. AArch32-specific components such as system calls,
  167. the user helper functions, VFP support and the ptrace interface are
  168. handled appropriately by the kernel.
  169. If you want to execute 32-bit userspace applications, say Y.
  170. config SYSVIPC_COMPAT
  171. def_bool y
  172. depends on COMPAT && SYSVIPC
  173. endmenu
  174. source "net/Kconfig"
  175. source "drivers/Kconfig"
  176. source "fs/Kconfig"
  177. source "arch/arm64/Kconfig.debug"
  178. source "security/Kconfig"
  179. source "crypto/Kconfig"
  180. source "lib/Kconfig"