arch/c6x/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see Documentation/kbuild/kconfig-language.txt.
   5 #
   6
   7 config C6X
   8         def_bool y
   9         select CLKDEV_LOOKUP
  10         select GENERIC_ATOMIC64
  11         select GENERIC_IRQ_SHOW
  12         select HAVE_ARCH_TRACEHOOK
  13         select HAVE_DMA_API_DEBUG
  14         select HAVE_MEMBLOCK
  15         select SPARSE_IRQ
  16         select IRQ_DOMAIN
  17         select OF
  18         select OF_EARLY_FLATTREE
  19         select GENERIC_CLOCKEVENTS
  20         select MODULES_USE_ELF_RELA
  21         select ARCH_NO_COHERENT_DMA_MMAP
  22
  23 config MMU
  24         def_bool n
  25
  26 config FPU
  27         def_bool n
  28
  29 config RWSEM_GENERIC_SPINLOCK
  30         def_bool y
  31
  32 config GENERIC_CALIBRATE_DELAY
  33         def_bool y
  34
  35 config GENERIC_HWEIGHT
  36         def_bool y
  37
  38 config GENERIC_BUG
  39         def_bool y
  40         depends on BUG
  41
  42 config C6X_BIG_KERNEL
  43         bool "Build a big kernel"
  44         help
  45           The C6X function call instruction has a limited range of +/- 2MiB.
  46           This is sufficient for most kernels, but some kernel configurations
  47           with lots of compiled-in functionality may require a larger range
  48           for function calls. Use this option to have the compiler generate
  49           function calls with 32-bit range. This will make the kernel both
  50           larger and slower.
  51
  52           If unsure, say N.
  53
  54 source "init/Kconfig"
  55
  56 # Use the generic interrupt handling code in kernel/irq/
  57
  58 source "kernel/Kconfig.freezer"
  59
  60 config CMDLINE_BOOL
  61         bool "Default bootloader kernel arguments"
  62
  63 config CMDLINE
  64         string "Kernel command line"
  65         depends on CMDLINE_BOOL
  66         default "console=ttyS0,57600"
  67         help
  68           On some architectures there is currently no way for the boot loader
  69           to pass arguments to the kernel. For these architectures, you should
  70           supply some command-line options at build time by entering them
  71           here.
  72
  73 config CMDLINE_FORCE
  74         bool "Force default kernel command string"
  75         depends on CMDLINE_BOOL
  76         default n
  77         help
  78           Set this to have arguments from the default kernel command string
  79           override those passed by the boot loader.
  80
  81 config CPU_BIG_ENDIAN
  82         bool "Build big-endian kernel"
  83         default n
  84         help
  85           Say Y if you plan on running a kernel in big-endian mode.
  86           Note that your board must be properly built and your board
  87           port must properly enable any big-endian related features
  88           of your chipset/board/processor.
  89
  90 config FORCE_MAX_ZONEORDER
  91         int "Maximum zone order"
  92         default "13"
  93         help
  94           The kernel memory allocator divides physically contiguous memory
  95           blocks into "zones", where each zone is a power of two number of
  96           pages.  This option selects the largest power of two that the kernel
  97           keeps in the memory allocator.  If you need to allocate very large
  98           blocks of physically contiguous memory, then you may need to
  99           increase this value.
 100
 101           This config option is actually maximum order plus one. For example,
 102           a value of 11 means that the largest free memory block is 2^10 pages.
 103
 104 menu "Processor type and features"
 105
 106 source "arch/c6x/platforms/Kconfig"
 107
 108 config KERNEL_RAM_BASE_ADDRESS
 109         hex "Virtual address of memory base"
 110         default 0xe0000000 if SOC_TMS320C6455
 111         default 0xe0000000 if SOC_TMS320C6457
 112         default 0xe0000000 if SOC_TMS320C6472
 113         default 0x80000000
 114
 115 source "mm/Kconfig"
 116
 117 source "kernel/Kconfig.preempt"
 118
 119 source "kernel/Kconfig.hz"
 120
 121 endmenu
 122
 123 menu "Executable file formats"
 124
 125 source "fs/Kconfig.binfmt"
 126
 127 endmenu
 128
 129 source "net/Kconfig"
 130
 131 source "drivers/Kconfig"
 132
 133 source "fs/Kconfig"
 134
 135 source "security/Kconfig"
 136
 137 source "crypto/Kconfig"
 138
 139 source "lib/Kconfig"
 140
 141 menu "Kernel hacking"
 142
 143 source "lib/Kconfig.debug"
 144
 145 config ACCESS_CHECK
 146         bool "Check the user pointer address"
 147         default y
 148         help
 149           Usually the pointer transfer from user space is checked to see if its
 150           address is in the kernel space.
 151
 152           Say N here to disable that check to improve the performance.
 153
 154 endmenu