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