Kconfig 4.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231
  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 GENERIC_CLOCKEVENTS
  6. select GENERIC_HARDIRQS_NO_DEPRECATED
  7. select GENERIC_IOMAP
  8. select GENERIC_IRQ_PROBE
  9. select GENERIC_IRQ_SHOW
  10. select GENERIC_KERNEL_EXECVE
  11. select GENERIC_KERNEL_THREAD
  12. select GENERIC_SMP_IDLE_THREAD
  13. select GENERIC_TIME_VSYSCALL
  14. select HARDIRQS_SW_RESEND
  15. select HAVE_ARCH_TRACEHOOK
  16. select HAVE_DEBUG_BUGVERBOSE
  17. select HAVE_DEBUG_KMEMLEAK
  18. select HAVE_DMA_API_DEBUG
  19. select HAVE_DMA_ATTRS
  20. select HAVE_GENERIC_DMA_COHERENT
  21. select HAVE_GENERIC_HARDIRQS
  22. select HAVE_HW_BREAKPOINT if PERF_EVENTS
  23. select HAVE_IRQ_WORK
  24. select HAVE_MEMBLOCK
  25. select HAVE_PERF_EVENTS
  26. select HAVE_SPARSE_IRQ
  27. select IRQ_DOMAIN
  28. select MODULES_USE_ELF_RELA
  29. select NO_BOOTMEM
  30. select OF
  31. select OF_EARLY_FLATTREE
  32. select PERF_USE_VMALLOC
  33. select RTC_LIB
  34. select SPARSE_IRQ
  35. select SYSCTL_EXCEPTION_TRACE
  36. select CLONE_BACKWARDS
  37. help
  38. ARM 64-bit (AArch64) Linux support.
  39. config 64BIT
  40. def_bool y
  41. config ARCH_PHYS_ADDR_T_64BIT
  42. def_bool y
  43. config MMU
  44. def_bool y
  45. config NO_IOPORT
  46. def_bool y
  47. config STACKTRACE_SUPPORT
  48. def_bool y
  49. config LOCKDEP_SUPPORT
  50. def_bool y
  51. config TRACE_IRQFLAGS_SUPPORT
  52. def_bool y
  53. config GENERIC_LOCKBREAK
  54. def_bool y
  55. depends on SMP && PREEMPT
  56. config RWSEM_GENERIC_SPINLOCK
  57. def_bool y
  58. config GENERIC_HWEIGHT
  59. def_bool y
  60. config GENERIC_CSUM
  61. def_bool y
  62. config GENERIC_CALIBRATE_DELAY
  63. def_bool y
  64. config ZONE_DMA32
  65. def_bool y
  66. config ARCH_DMA_ADDR_T_64BIT
  67. def_bool y
  68. config NEED_DMA_MAP_STATE
  69. def_bool y
  70. config NEED_SG_DMA_LENGTH
  71. def_bool y
  72. config SWIOTLB
  73. def_bool y
  74. config IOMMU_HELPER
  75. def_bool SWIOTLB
  76. source "init/Kconfig"
  77. source "kernel/Kconfig.freezer"
  78. menu "System Type"
  79. endmenu
  80. menu "Bus support"
  81. config ARM_AMBA
  82. bool
  83. endmenu
  84. menu "Kernel Features"
  85. source "kernel/time/Kconfig"
  86. config ARM64_64K_PAGES
  87. bool "Enable 64KB pages support"
  88. help
  89. This feature enables 64KB pages support (4KB by default)
  90. allowing only two levels of page tables and faster TLB
  91. look-up. AArch32 emulation is not available when this feature
  92. is enabled.
  93. config SMP
  94. bool "Symmetric Multi-Processing"
  95. select USE_GENERIC_SMP_HELPERS
  96. help
  97. This enables support for systems with more than one CPU. If
  98. you say N here, the kernel will run on single and
  99. multiprocessor machines, but will use only one CPU of a
  100. multiprocessor machine. If you say Y here, the kernel will run
  101. on many, but not all, single processor machines. On a single
  102. processor machine, the kernel will run faster if you say N
  103. here.
  104. If you don't know what to do here, say N.
  105. config NR_CPUS
  106. int "Maximum number of CPUs (2-32)"
  107. range 2 32
  108. depends on SMP
  109. default "4"
  110. source kernel/Kconfig.preempt
  111. config HZ
  112. int
  113. default 100
  114. config ARCH_HAS_HOLES_MEMORYMODEL
  115. def_bool y if SPARSEMEM
  116. config ARCH_SPARSEMEM_ENABLE
  117. def_bool y
  118. select SPARSEMEM_VMEMMAP_ENABLE
  119. config ARCH_SPARSEMEM_DEFAULT
  120. def_bool ARCH_SPARSEMEM_ENABLE
  121. config ARCH_SELECT_MEMORY_MODEL
  122. def_bool ARCH_SPARSEMEM_ENABLE
  123. config HAVE_ARCH_PFN_VALID
  124. def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
  125. config HW_PERF_EVENTS
  126. bool "Enable hardware performance counter support for perf events"
  127. depends on PERF_EVENTS
  128. default y
  129. help
  130. Enable hardware performance counter support for perf events. If
  131. disabled, perf events will use software events only.
  132. source "mm/Kconfig"
  133. endmenu
  134. menu "Boot options"
  135. config CMDLINE
  136. string "Default kernel command string"
  137. default ""
  138. help
  139. Provide a set of default command-line options at build time by
  140. entering them here. As a minimum, you should specify the the
  141. root device (e.g. root=/dev/nfs).
  142. config CMDLINE_FORCE
  143. bool "Always use the default kernel command string"
  144. help
  145. Always use the default kernel command string, even if the boot
  146. loader passes other arguments to the kernel.
  147. This is useful if you cannot or don't want to change the
  148. command-line options your boot loader passes to the kernel.
  149. endmenu
  150. menu "Userspace binary formats"
  151. source "fs/Kconfig.binfmt"
  152. config COMPAT
  153. bool "Kernel support for 32-bit EL0"
  154. depends on !ARM64_64K_PAGES
  155. select COMPAT_BINFMT_ELF
  156. select HAVE_UID16
  157. help
  158. This option enables support for a 32-bit EL0 running under a 64-bit
  159. kernel at EL1. AArch32-specific components such as system calls,
  160. the user helper functions, VFP support and the ptrace interface are
  161. handled appropriately by the kernel.
  162. If you want to execute 32-bit userspace applications, say Y.
  163. config SYSVIPC_COMPAT
  164. def_bool y
  165. depends on COMPAT && SYSVIPC
  166. endmenu
  167. source "net/Kconfig"
  168. source "drivers/Kconfig"
  169. source "fs/Kconfig"
  170. source "arch/arm64/Kconfig.debug"
  171. source "security/Kconfig"
  172. source "crypto/Kconfig"
  173. source "lib/Kconfig"