Kconfig 7.4 KB

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  1. config MICROBLAZE
  2. def_bool y
  3. select HAVE_MEMBLOCK
  4. select HAVE_MEMBLOCK_NODE_MAP
  5. select HAVE_FUNCTION_TRACER
  6. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  7. select HAVE_FUNCTION_GRAPH_TRACER
  8. select HAVE_DYNAMIC_FTRACE
  9. select HAVE_FTRACE_MCOUNT_RECORD
  10. select ARCH_WANT_OPTIONAL_GPIOLIB
  11. select HAVE_OPROFILE
  12. select HAVE_ARCH_KGDB
  13. select HAVE_DMA_ATTRS
  14. select HAVE_DMA_API_DEBUG
  15. select TRACING_SUPPORT
  16. select OF
  17. select OF_EARLY_FLATTREE
  18. select IRQ_DOMAIN
  19. select HAVE_GENERIC_HARDIRQS
  20. select GENERIC_IRQ_PROBE
  21. select GENERIC_IRQ_SHOW
  22. select GENERIC_PCI_IOMAP
  23. select GENERIC_CPU_DEVICES
  24. select GENERIC_ATOMIC64
  25. config SWAP
  26. def_bool n
  27. config RWSEM_GENERIC_SPINLOCK
  28. def_bool y
  29. config ZONE_DMA
  30. def_bool y
  31. config ARCH_POPULATES_NODE_MAP
  32. def_bool y
  33. config RWSEM_XCHGADD_ALGORITHM
  34. bool
  35. config ARCH_HAS_ILOG2_U32
  36. def_bool n
  37. config ARCH_HAS_ILOG2_U64
  38. def_bool n
  39. config GENERIC_HWEIGHT
  40. def_bool y
  41. config GENERIC_CALIBRATE_DELAY
  42. def_bool y
  43. config GENERIC_TIME_VSYSCALL
  44. def_bool n
  45. config GENERIC_CLOCKEVENTS
  46. def_bool y
  47. config GENERIC_GPIO
  48. bool
  49. config GENERIC_CSUM
  50. def_bool y
  51. config STACKTRACE_SUPPORT
  52. def_bool y
  53. config LOCKDEP_SUPPORT
  54. def_bool y
  55. config HAVE_LATENCYTOP_SUPPORT
  56. def_bool y
  57. source "init/Kconfig"
  58. source "kernel/Kconfig.freezer"
  59. source "arch/microblaze/platform/Kconfig.platform"
  60. menu "Processor type and features"
  61. source "kernel/time/Kconfig"
  62. source "kernel/Kconfig.preempt"
  63. source "kernel/Kconfig.hz"
  64. config MMU
  65. bool "MMU support"
  66. default n
  67. config NO_MMU
  68. bool
  69. depends on !MMU
  70. default y
  71. comment "Boot options"
  72. config CMDLINE_BOOL
  73. bool "Default bootloader kernel arguments"
  74. config CMDLINE
  75. string "Default kernel command string"
  76. depends on CMDLINE_BOOL
  77. default "console=ttyUL0,115200"
  78. help
  79. On some architectures there is currently no way for the boot loader
  80. to pass arguments to the kernel. For these architectures, you should
  81. supply some command-line options at build time by entering them
  82. here.
  83. config CMDLINE_FORCE
  84. bool "Force default kernel command string"
  85. depends on CMDLINE_BOOL
  86. default n
  87. help
  88. Set this to have arguments from the default kernel command string
  89. override those passed by the boot loader.
  90. config SECCOMP
  91. bool "Enable seccomp to safely compute untrusted bytecode"
  92. depends on PROC_FS
  93. default y
  94. help
  95. This kernel feature is useful for number crunching applications
  96. that may need to compute untrusted bytecode during their
  97. execution. By using pipes or other transports made available to
  98. the process as file descriptors supporting the read/write
  99. syscalls, it's possible to isolate those applications in
  100. their own address space using seccomp. Once seccomp is
  101. enabled via /proc/<pid>/seccomp, it cannot be disabled
  102. and the task is only allowed to execute a few safe syscalls
  103. defined by each seccomp mode.
  104. If unsure, say Y. Only embedded should say N here.
  105. endmenu
  106. menu "Advanced setup"
  107. config ADVANCED_OPTIONS
  108. bool "Prompt for advanced kernel configuration options"
  109. help
  110. This option will enable prompting for a variety of advanced kernel
  111. configuration options. These options can cause the kernel to not
  112. work if they are set incorrectly, but can be used to optimize certain
  113. aspects of kernel memory management.
  114. Unless you know what you are doing, say N here.
  115. comment "Default settings for advanced configuration options are used"
  116. depends on !ADVANCED_OPTIONS
  117. config XILINX_UNCACHED_SHADOW
  118. bool "Are you using uncached shadow for RAM ?"
  119. depends on ADVANCED_OPTIONS && !MMU
  120. default n
  121. help
  122. This is needed to be able to allocate uncachable memory regions.
  123. The feature requires the design to define the RAM memory controller
  124. window to be twice as large as the actual physical memory.
  125. config HIGHMEM
  126. bool "High memory support"
  127. depends on MMU
  128. help
  129. The address space of Microblaze processors is only 4 Gigabytes large
  130. and it has to accommodate user address space, kernel address
  131. space as well as some memory mapped IO. That means that, if you
  132. have a large amount of physical memory and/or IO, not all of the
  133. memory can be "permanently mapped" by the kernel. The physical
  134. memory that is not permanently mapped is called "high memory".
  135. If unsure, say n.
  136. config LOWMEM_SIZE_BOOL
  137. bool "Set maximum low memory"
  138. depends on ADVANCED_OPTIONS && MMU
  139. help
  140. This option allows you to set the maximum amount of memory which
  141. will be used as "low memory", that is, memory which the kernel can
  142. access directly, without having to set up a kernel virtual mapping.
  143. This can be useful in optimizing the layout of kernel virtual
  144. memory.
  145. Say N here unless you know what you are doing.
  146. config LOWMEM_SIZE
  147. hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
  148. default "0x30000000"
  149. config MANUAL_RESET_VECTOR
  150. hex "Microblaze reset vector address setup"
  151. default "0x0"
  152. help
  153. Set this option to have the kernel override the CPU Reset vector.
  154. If zero, no change will be made to the MicroBlaze reset vector at
  155. address 0x0.
  156. If non-zero, a jump instruction to this address, will be written
  157. to the reset vector at address 0x0.
  158. If you are unsure, set it to default value 0x0.
  159. config KERNEL_START_BOOL
  160. bool "Set custom kernel base address"
  161. depends on ADVANCED_OPTIONS
  162. help
  163. This option allows you to set the kernel virtual address at which
  164. the kernel will map low memory (the kernel image will be linked at
  165. this address). This can be useful in optimizing the virtual memory
  166. layout of the system.
  167. Say N here unless you know what you are doing.
  168. config KERNEL_START
  169. hex "Virtual address of kernel base" if KERNEL_START_BOOL
  170. default "0xc0000000" if MMU
  171. default KERNEL_BASE_ADDR if !MMU
  172. config TASK_SIZE_BOOL
  173. bool "Set custom user task size"
  174. depends on ADVANCED_OPTIONS && MMU
  175. help
  176. This option allows you to set the amount of virtual address space
  177. allocated to user tasks. This can be useful in optimizing the
  178. virtual memory layout of the system.
  179. Say N here unless you know what you are doing.
  180. config TASK_SIZE
  181. hex "Size of user task space" if TASK_SIZE_BOOL
  182. default "0x80000000"
  183. choice
  184. prompt "Page size"
  185. default MICROBLAZE_4K_PAGES
  186. depends on ADVANCED_OPTIONS && !MMU
  187. help
  188. Select the kernel logical page size. Increasing the page size
  189. will reduce software overhead at each page boundary, allow
  190. hardware prefetch mechanisms to be more effective, and allow
  191. larger dma transfers increasing IO efficiency and reducing
  192. overhead. However the utilization of memory will increase.
  193. For example, each cached file will using a multiple of the
  194. page size to hold its contents and the difference between the
  195. end of file and the end of page is wasted.
  196. If unsure, choose 4K_PAGES.
  197. config MICROBLAZE_4K_PAGES
  198. bool "4k page size"
  199. config MICROBLAZE_8K_PAGES
  200. bool "8k page size"
  201. config MICROBLAZE_16K_PAGES
  202. bool "16k page size"
  203. config MICROBLAZE_32K_PAGES
  204. bool "32k page size"
  205. endchoice
  206. config KERNEL_PAD
  207. hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
  208. default "0x80000" if MMU
  209. endmenu
  210. source "mm/Kconfig"
  211. menu "Executable file formats"
  212. source "fs/Kconfig.binfmt"
  213. endmenu
  214. menu "Bus Options"
  215. config PCI
  216. bool "PCI support"
  217. config PCI_DOMAINS
  218. def_bool PCI
  219. config PCI_SYSCALL
  220. def_bool PCI
  221. config PCI_XILINX
  222. bool "Xilinx PCI host bridge support"
  223. depends on PCI
  224. source "drivers/pci/Kconfig"
  225. endmenu
  226. source "net/Kconfig"
  227. source "drivers/Kconfig"
  228. source "fs/Kconfig"
  229. source "arch/microblaze/Kconfig.debug"
  230. source "security/Kconfig"
  231. source "crypto/Kconfig"
  232. source "lib/Kconfig"