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Linux/arch/c6x/Kconfig

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

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