arch/microblaze/Kconfig

   1 # For a description of the syntax of this configuration file,
   2 # see Documentation/kbuild/kconfig-language.txt.
   3
   4 mainmenu "Linux/Microblaze Kernel Configuration"
   5
   6 config MICROBLAZE
   7         def_bool y
   8         select HAVE_MEMBLOCK
   9         select HAVE_FUNCTION_TRACER
  10         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  11         select HAVE_FUNCTION_GRAPH_TRACER
  12         select HAVE_DYNAMIC_FTRACE
  13         select HAVE_FTRACE_MCOUNT_RECORD
  14         select USB_ARCH_HAS_EHCI
  15         select ARCH_WANT_OPTIONAL_GPIOLIB
  16         select HAVE_OPROFILE
  17         select HAVE_ARCH_KGDB
  18         select HAVE_DMA_ATTRS
  19         select HAVE_DMA_API_DEBUG
  20         select TRACING_SUPPORT
  21         select OF
  22         select OF_FLATTREE
  23
  24 config SWAP
  25         def_bool n
  26
  27 config RWSEM_GENERIC_SPINLOCK
  28         def_bool y
  29
  30 config RWSEM_XCHGADD_ALGORITHM
  31         bool
  32
  33 config ARCH_HAS_ILOG2_U32
  34         def_bool n
  35
  36 config ARCH_HAS_ILOG2_U64
  37         def_bool n
  38
  39 config GENERIC_FIND_NEXT_BIT
  40         def_bool y
  41
  42 config GENERIC_HWEIGHT
  43         def_bool y
  44
  45 config GENERIC_HARDIRQS
  46         def_bool y
  47
  48 config GENERIC_IRQ_PROBE
  49         def_bool y
  50
  51 config GENERIC_CALIBRATE_DELAY
  52         def_bool y
  53
  54 config GENERIC_TIME_VSYSCALL
  55         def_bool n
  56
  57 config GENERIC_CLOCKEVENTS
  58         def_bool y
  59
  60 config GENERIC_HARDIRQS_NO__DO_IRQ
  61         def_bool y
  62
  63 config GENERIC_GPIO
  64         def_bool y
  65
  66 config GENERIC_CSUM
  67         def_bool y
  68
  69 config STACKTRACE_SUPPORT
  70         def_bool y
  71
  72 config LOCKDEP_SUPPORT
  73         def_bool y
  74
  75 config HAVE_LATENCYTOP_SUPPORT
  76         def_bool y
  77
  78 source "init/Kconfig"
  79
  80 source "kernel/Kconfig.freezer"
  81
  82 source "arch/microblaze/platform/Kconfig.platform"
  83
  84 menu "Processor type and features"
  85
  86 source "kernel/time/Kconfig"
  87
  88 source "kernel/Kconfig.preempt"
  89
  90 source "kernel/Kconfig.hz"
  91
  92 config MMU
  93         bool "MMU support"
  94         default n
  95
  96 config NO_MMU
  97         bool
  98         depends on !MMU
  99         default y
 100
 101 comment "Boot options"
 102
 103 config CMDLINE_BOOL
 104         bool "Default bootloader kernel arguments"
 105
 106 config CMDLINE
 107         string "Default kernel command string"
 108         depends on CMDLINE_BOOL
 109         default "console=ttyUL0,115200"
 110         help
 111           On some architectures there is currently no way for the boot loader
 112           to pass arguments to the kernel. For these architectures, you should
 113           supply some command-line options at build time by entering them
 114           here.
 115
 116 config CMDLINE_FORCE
 117         bool "Force default kernel command string"
 118         depends on CMDLINE_BOOL
 119         default n
 120         help
 121           Set this to have arguments from the default kernel command string
 122           override those passed by the boot loader.
 123
 124 endmenu
 125
 126 menu "Advanced setup"
 127
 128 config ADVANCED_OPTIONS
 129         bool "Prompt for advanced kernel configuration options"
 130         help
 131           This option will enable prompting for a variety of advanced kernel
 132           configuration options.  These options can cause the kernel to not
 133           work if they are set incorrectly, but can be used to optimize certain
 134           aspects of kernel memory management.
 135
 136           Unless you know what you are doing, say N here.
 137
 138 comment "Default settings for advanced configuration options are used"
 139         depends on !ADVANCED_OPTIONS
 140
 141 config XILINX_UNCACHED_SHADOW
 142         bool "Are you using uncached shadow for RAM ?"
 143         depends on ADVANCED_OPTIONS && !MMU
 144         default n
 145         help
 146           This is needed to be able to allocate uncachable memory regions.
 147           The feature requires the design to define the RAM memory controller
 148           window to be twice as large as the actual physical memory.
 149
 150 config HIGHMEM_START_BOOL
 151         bool "Set high memory pool address"
 152         depends on ADVANCED_OPTIONS && HIGHMEM
 153         help
 154           This option allows you to set the base address of the kernel virtual
 155           area used to map high memory pages.  This can be useful in
 156           optimizing the layout of kernel virtual memory.
 157
 158           Say N here unless you know what you are doing.
 159
 160 config HIGHMEM_START
 161         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 162         depends on MMU
 163         default "0xfe000000"
 164
 165 config LOWMEM_SIZE_BOOL
 166         bool "Set maximum low memory"
 167         depends on ADVANCED_OPTIONS && MMU
 168         help
 169           This option allows you to set the maximum amount of memory which
 170           will be used as "low memory", that is, memory which the kernel can
 171           access directly, without having to set up a kernel virtual mapping.
 172           This can be useful in optimizing the layout of kernel virtual
 173           memory.
 174
 175           Say N here unless you know what you are doing.
 176
 177 config LOWMEM_SIZE
 178         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 179         default "0x30000000"
 180
 181 config KERNEL_START_BOOL
 182         bool "Set custom kernel base address"
 183         depends on ADVANCED_OPTIONS
 184         help
 185           This option allows you to set the kernel virtual address at which
 186           the kernel will map low memory (the kernel image will be linked at
 187           this address).  This can be useful in optimizing the virtual memory
 188           layout of the system.
 189
 190           Say N here unless you know what you are doing.
 191
 192 config KERNEL_START
 193         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 194         default "0xc0000000" if MMU
 195         default KERNEL_BASE_ADDR if !MMU
 196
 197 config TASK_SIZE_BOOL
 198         bool "Set custom user task size"
 199         depends on ADVANCED_OPTIONS && MMU
 200         help
 201           This option allows you to set the amount of virtual address space
 202           allocated to user tasks.  This can be useful in optimizing the
 203           virtual memory layout of the system.
 204
 205           Say N here unless you know what you are doing.
 206
 207 config TASK_SIZE
 208         hex "Size of user task space" if TASK_SIZE_BOOL
 209         default "0x80000000"
 210
 211 choice
 212         prompt "Page size"
 213         default MICROBLAZE_4K_PAGES
 214         depends on ADVANCED_OPTIONS && !MMU
 215         help
 216           Select the kernel logical page size. Increasing the page size
 217           will reduce software overhead at each page boundary, allow
 218           hardware prefetch mechanisms to be more effective, and allow
 219           larger dma transfers increasing IO efficiency and reducing
 220           overhead. However the utilization of memory will increase.
 221           For example, each cached file will using a multiple of the
 222           page size to hold its contents and the difference between the
 223           end of file and the end of page is wasted.
 224
 225           If unsure, choose 4K_PAGES.
 226
 227 config MICROBLAZE_4K_PAGES
 228         bool "4k page size"
 229
 230 config MICROBLAZE_8K_PAGES
 231         bool "8k page size"
 232
 233 config MICROBLAZE_16K_PAGES
 234         bool "16k page size"
 235
 236 config MICROBLAZE_32K_PAGES
 237         bool "32k page size"
 238
 239 endchoice
 240
 241 endmenu
 242
 243 source "mm/Kconfig"
 244
 245 menu "Exectuable file formats"
 246
 247 source "fs/Kconfig.binfmt"
 248
 249 endmenu
 250
 251 menu "Bus Options"
 252
 253 config PCI
 254         bool "PCI support"
 255
 256 config PCI_DOMAINS
 257         def_bool PCI
 258
 259 config PCI_SYSCALL
 260         def_bool PCI
 261
 262 config PCI_XILINX
 263         bool "Xilinx PCI host bridge support"
 264         depends on PCI
 265
 266 source "drivers/pci/Kconfig"
 267
 268 endmenu
 269
 270 source "net/Kconfig"
 271
 272 source "drivers/Kconfig"
 273
 274 source "fs/Kconfig"
 275
 276 source "arch/microblaze/Kconfig.debug"
 277
 278 source "security/Kconfig"
 279
 280 source "crypto/Kconfig"
 281
 282 source "lib/Kconfig"