arch/microblaze/Kconfig

   1 config MICROBLAZE
   2         def_bool y
   3         select HAVE_MEMBLOCK
   4         select HAVE_FUNCTION_TRACER
   5         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
   6         select HAVE_FUNCTION_GRAPH_TRACER
   7         select HAVE_DYNAMIC_FTRACE
   8         select HAVE_FTRACE_MCOUNT_RECORD
   9         select ARCH_WANT_OPTIONAL_GPIOLIB
  10         select HAVE_OPROFILE
  11         select HAVE_ARCH_KGDB
  12         select HAVE_DMA_ATTRS
  13         select HAVE_DMA_API_DEBUG
  14         select TRACING_SUPPORT
  15         select OF
  16         select OF_EARLY_FLATTREE
  17         select IRQ_DOMAIN
  18         select HAVE_GENERIC_HARDIRQS
  19         select GENERIC_IRQ_PROBE
  20         select GENERIC_IRQ_SHOW
  21         select GENERIC_PCI_IOMAP
  22         select GENERIC_CPU_DEVICES
  23         select GENERIC_ATOMIC64
  24
  25 config SWAP
  26         def_bool n
  27
  28 config RWSEM_GENERIC_SPINLOCK
  29         def_bool y
  30
  31 config RWSEM_XCHGADD_ALGORITHM
  32         bool
  33
  34 config ARCH_HAS_ILOG2_U32
  35         def_bool n
  36
  37 config ARCH_HAS_ILOG2_U64
  38         def_bool n
  39
  40 config GENERIC_HWEIGHT
  41         def_bool y
  42
  43 config GENERIC_CALIBRATE_DELAY
  44         def_bool y
  45
  46 config GENERIC_TIME_VSYSCALL
  47         def_bool n
  48
  49 config GENERIC_CLOCKEVENTS
  50         def_bool y
  51
  52 config GENERIC_GPIO
  53         def_bool y
  54
  55 config GENERIC_CSUM
  56         def_bool y
  57
  58 config STACKTRACE_SUPPORT
  59         def_bool y
  60
  61 config LOCKDEP_SUPPORT
  62         def_bool y
  63
  64 config HAVE_LATENCYTOP_SUPPORT
  65         def_bool y
  66
  67 source "init/Kconfig"
  68
  69 source "kernel/Kconfig.freezer"
  70
  71 source "arch/microblaze/platform/Kconfig.platform"
  72
  73 menu "Processor type and features"
  74
  75 source "kernel/time/Kconfig"
  76
  77 source "kernel/Kconfig.preempt"
  78
  79 source "kernel/Kconfig.hz"
  80
  81 config MMU
  82         bool "MMU support"
  83         default n
  84
  85 config NO_MMU
  86         bool
  87         depends on !MMU
  88         default y
  89
  90 comment "Boot options"
  91
  92 config CMDLINE_BOOL
  93         bool "Default bootloader kernel arguments"
  94
  95 config CMDLINE
  96         string "Default kernel command string"
  97         depends on CMDLINE_BOOL
  98         default "console=ttyUL0,115200"
  99         help
 100           On some architectures there is currently no way for the boot loader
 101           to pass arguments to the kernel. For these architectures, you should
 102           supply some command-line options at build time by entering them
 103           here.
 104
 105 config CMDLINE_FORCE
 106         bool "Force default kernel command string"
 107         depends on CMDLINE_BOOL
 108         default n
 109         help
 110           Set this to have arguments from the default kernel command string
 111           override those passed by the boot loader.
 112
 113 config SECCOMP
 114         bool "Enable seccomp to safely compute untrusted bytecode"
 115         depends on PROC_FS
 116         default y
 117         help
 118           This kernel feature is useful for number crunching applications
 119           that may need to compute untrusted bytecode during their
 120           execution. By using pipes or other transports made available to
 121           the process as file descriptors supporting the read/write
 122           syscalls, it's possible to isolate those applications in
 123           their own address space using seccomp. Once seccomp is
 124           enabled via /proc/<pid>/seccomp, it cannot be disabled
 125           and the task is only allowed to execute a few safe syscalls
 126           defined by each seccomp mode.
 127
 128           If unsure, say Y. Only embedded should say N here.
 129
 130 endmenu
 131
 132 menu "Advanced setup"
 133
 134 config ADVANCED_OPTIONS
 135         bool "Prompt for advanced kernel configuration options"
 136         help
 137           This option will enable prompting for a variety of advanced kernel
 138           configuration options.  These options can cause the kernel to not
 139           work if they are set incorrectly, but can be used to optimize certain
 140           aspects of kernel memory management.
 141
 142           Unless you know what you are doing, say N here.
 143
 144 comment "Default settings for advanced configuration options are used"
 145         depends on !ADVANCED_OPTIONS
 146
 147 config XILINX_UNCACHED_SHADOW
 148         bool "Are you using uncached shadow for RAM ?"
 149         depends on ADVANCED_OPTIONS && !MMU
 150         default n
 151         help
 152           This is needed to be able to allocate uncachable memory regions.
 153           The feature requires the design to define the RAM memory controller
 154           window to be twice as large as the actual physical memory.
 155
 156 config HIGHMEM_START_BOOL
 157         bool "Set high memory pool address"
 158         depends on ADVANCED_OPTIONS && HIGHMEM
 159         help
 160           This option allows you to set the base address of the kernel virtual
 161           area used to map high memory pages.  This can be useful in
 162           optimizing the layout of kernel virtual memory.
 163
 164           Say N here unless you know what you are doing.
 165
 166 config HIGHMEM_START
 167         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 168         depends on MMU
 169         default "0xfe000000"
 170
 171 config LOWMEM_SIZE_BOOL
 172         bool "Set maximum low memory"
 173         depends on ADVANCED_OPTIONS && MMU
 174         help
 175           This option allows you to set the maximum amount of memory which
 176           will be used as "low memory", that is, memory which the kernel can
 177           access directly, without having to set up a kernel virtual mapping.
 178           This can be useful in optimizing the layout of kernel virtual
 179           memory.
 180
 181           Say N here unless you know what you are doing.
 182
 183 config LOWMEM_SIZE
 184         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 185         default "0x30000000"
 186
 187 config MANUAL_RESET_VECTOR
 188         hex "Microblaze reset vector address setup"
 189         default "0x0"
 190         help
 191           Set this option to have the kernel override the CPU Reset vector.
 192           If zero, no change will be made to the MicroBlaze reset vector at
 193           address 0x0.
 194           If non-zero, a jump instruction to this address, will be written
 195           to the reset vector at address 0x0.
 196           If you are unsure, set it to default value 0x0.
 197
 198 config KERNEL_START_BOOL
 199         bool "Set custom kernel base address"
 200         depends on ADVANCED_OPTIONS
 201         help
 202           This option allows you to set the kernel virtual address at which
 203           the kernel will map low memory (the kernel image will be linked at
 204           this address).  This can be useful in optimizing the virtual memory
 205           layout of the system.
 206
 207           Say N here unless you know what you are doing.
 208
 209 config KERNEL_START
 210         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 211         default "0xc0000000" if MMU
 212         default KERNEL_BASE_ADDR if !MMU
 213
 214 config TASK_SIZE_BOOL
 215         bool "Set custom user task size"
 216         depends on ADVANCED_OPTIONS && MMU
 217         help
 218           This option allows you to set the amount of virtual address space
 219           allocated to user tasks.  This can be useful in optimizing the
 220           virtual memory layout of the system.
 221
 222           Say N here unless you know what you are doing.
 223
 224 config TASK_SIZE
 225         hex "Size of user task space" if TASK_SIZE_BOOL
 226         default "0x80000000"
 227
 228 choice
 229         prompt "Page size"
 230         default MICROBLAZE_4K_PAGES
 231         depends on ADVANCED_OPTIONS && !MMU
 232         help
 233           Select the kernel logical page size. Increasing the page size
 234           will reduce software overhead at each page boundary, allow
 235           hardware prefetch mechanisms to be more effective, and allow
 236           larger dma transfers increasing IO efficiency and reducing
 237           overhead. However the utilization of memory will increase.
 238           For example, each cached file will using a multiple of the
 239           page size to hold its contents and the difference between the
 240           end of file and the end of page is wasted.
 241
 242           If unsure, choose 4K_PAGES.
 243
 244 config MICROBLAZE_4K_PAGES
 245         bool "4k page size"
 246
 247 config MICROBLAZE_8K_PAGES
 248         bool "8k page size"
 249
 250 config MICROBLAZE_16K_PAGES
 251         bool "16k page size"
 252
 253 config MICROBLAZE_32K_PAGES
 254         bool "32k page size"
 255
 256 endchoice
 257
 258 endmenu
 259
 260 source "mm/Kconfig"
 261
 262 menu "Executable file formats"
 263
 264 source "fs/Kconfig.binfmt"
 265
 266 endmenu
 267
 268 menu "Bus Options"
 269
 270 config PCI
 271         bool "PCI support"
 272
 273 config PCI_DOMAINS
 274         def_bool PCI
 275
 276 config PCI_SYSCALL
 277         def_bool PCI
 278
 279 config PCI_XILINX
 280         bool "Xilinx PCI host bridge support"
 281         depends on PCI
 282
 283 source "drivers/pci/Kconfig"
 284
 285 endmenu
 286
 287 source "net/Kconfig"
 288
 289 source "drivers/Kconfig"
 290
 291 source "fs/Kconfig"
 292
 293 source "arch/microblaze/Kconfig.debug"
 294
 295 source "security/Kconfig"
 296
 297 source "crypto/Kconfig"
 298
 299 source "lib/Kconfig"