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 USB_ARCH_HAS_EHCI
  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 HAVE_GENERIC_HARDIRQS
  19         select GENERIC_IRQ_PROBE
  20         select GENERIC_HARDIRQS_NO_DEPRECATED
  21
  22 config SWAP
  23         def_bool n
  24
  25 config RWSEM_GENERIC_SPINLOCK
  26         def_bool y
  27
  28 config RWSEM_XCHGADD_ALGORITHM
  29         bool
  30
  31 config ARCH_HAS_ILOG2_U32
  32         def_bool n
  33
  34 config ARCH_HAS_ILOG2_U64
  35         def_bool n
  36
  37 config GENERIC_FIND_NEXT_BIT
  38         def_bool y
  39
  40 config GENERIC_FIND_BIT_LE
  41         def_bool y
  42
  43 config GENERIC_HWEIGHT
  44         def_bool y
  45
  46 config GENERIC_CALIBRATE_DELAY
  47         def_bool y
  48
  49 config GENERIC_TIME_VSYSCALL
  50         def_bool n
  51
  52 config GENERIC_CLOCKEVENTS
  53         def_bool y
  54
  55 config GENERIC_GPIO
  56         def_bool y
  57
  58 config GENERIC_CSUM
  59         def_bool y
  60
  61 config STACKTRACE_SUPPORT
  62         def_bool y
  63
  64 config LOCKDEP_SUPPORT
  65         def_bool y
  66
  67 config HAVE_LATENCYTOP_SUPPORT
  68         def_bool y
  69
  70 source "init/Kconfig"
  71
  72 source "kernel/Kconfig.freezer"
  73
  74 source "arch/microblaze/platform/Kconfig.platform"
  75
  76 menu "Processor type and features"
  77
  78 source "kernel/time/Kconfig"
  79
  80 source "kernel/Kconfig.preempt"
  81
  82 source "kernel/Kconfig.hz"
  83
  84 config MMU
  85         bool "MMU support"
  86         default n
  87
  88 config NO_MMU
  89         bool
  90         depends on !MMU
  91         default y
  92
  93 comment "Boot options"
  94
  95 config CMDLINE_BOOL
  96         bool "Default bootloader kernel arguments"
  97
  98 config CMDLINE
  99         string "Default kernel command string"
 100         depends on CMDLINE_BOOL
 101         default "console=ttyUL0,115200"
 102         help
 103           On some architectures there is currently no way for the boot loader
 104           to pass arguments to the kernel. For these architectures, you should
 105           supply some command-line options at build time by entering them
 106           here.
 107
 108 config CMDLINE_FORCE
 109         bool "Force default kernel command string"
 110         depends on CMDLINE_BOOL
 111         default n
 112         help
 113           Set this to have arguments from the default kernel command string
 114           override those passed by the boot loader.
 115
 116 config SECCOMP
 117         bool "Enable seccomp to safely compute untrusted bytecode"
 118         depends on PROC_FS
 119         default y
 120         help
 121           This kernel feature is useful for number crunching applications
 122           that may need to compute untrusted bytecode during their
 123           execution. By using pipes or other transports made available to
 124           the process as file descriptors supporting the read/write
 125           syscalls, it's possible to isolate those applications in
 126           their own address space using seccomp. Once seccomp is
 127           enabled via /proc/<pid>/seccomp, it cannot be disabled
 128           and the task is only allowed to execute a few safe syscalls
 129           defined by each seccomp mode.
 130
 131           If unsure, say Y. Only embedded should say N here.
 132
 133 endmenu
 134
 135 menu "Advanced setup"
 136
 137 config ADVANCED_OPTIONS
 138         bool "Prompt for advanced kernel configuration options"
 139         help
 140           This option will enable prompting for a variety of advanced kernel
 141           configuration options.  These options can cause the kernel to not
 142           work if they are set incorrectly, but can be used to optimize certain
 143           aspects of kernel memory management.
 144
 145           Unless you know what you are doing, say N here.
 146
 147 comment "Default settings for advanced configuration options are used"
 148         depends on !ADVANCED_OPTIONS
 149
 150 config XILINX_UNCACHED_SHADOW
 151         bool "Are you using uncached shadow for RAM ?"
 152         depends on ADVANCED_OPTIONS && !MMU
 153         default n
 154         help
 155           This is needed to be able to allocate uncachable memory regions.
 156           The feature requires the design to define the RAM memory controller
 157           window to be twice as large as the actual physical memory.
 158
 159 config HIGHMEM_START_BOOL
 160         bool "Set high memory pool address"
 161         depends on ADVANCED_OPTIONS && HIGHMEM
 162         help
 163           This option allows you to set the base address of the kernel virtual
 164           area used to map high memory pages.  This can be useful in
 165           optimizing the layout of kernel virtual memory.
 166
 167           Say N here unless you know what you are doing.
 168
 169 config HIGHMEM_START
 170         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 171         depends on MMU
 172         default "0xfe000000"
 173
 174 config LOWMEM_SIZE_BOOL
 175         bool "Set maximum low memory"
 176         depends on ADVANCED_OPTIONS && MMU
 177         help
 178           This option allows you to set the maximum amount of memory which
 179           will be used as "low memory", that is, memory which the kernel can
 180           access directly, without having to set up a kernel virtual mapping.
 181           This can be useful in optimizing the layout of kernel virtual
 182           memory.
 183
 184           Say N here unless you know what you are doing.
 185
 186 config LOWMEM_SIZE
 187         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 188         default "0x30000000"
 189
 190 config MANUAL_RESET_VECTOR
 191         hex "Microblaze reset vector address setup"
 192         default "0x0"
 193         help
 194           Set this option to have the kernel override the CPU Reset vector.
 195           If zero, no change will be made to the MicroBlaze reset vector at
 196           address 0x0.
 197           If non-zero, a jump instruction to this address, will be written
 198           to the reset vector at address 0x0.
 199           If you are unsure, set it to default value 0x0.
 200
 201 config KERNEL_START_BOOL
 202         bool "Set custom kernel base address"
 203         depends on ADVANCED_OPTIONS
 204         help
 205           This option allows you to set the kernel virtual address at which
 206           the kernel will map low memory (the kernel image will be linked at
 207           this address).  This can be useful in optimizing the virtual memory
 208           layout of the system.
 209
 210           Say N here unless you know what you are doing.
 211
 212 config KERNEL_START
 213         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 214         default "0xc0000000" if MMU
 215         default KERNEL_BASE_ADDR if !MMU
 216
 217 config TASK_SIZE_BOOL
 218         bool "Set custom user task size"
 219         depends on ADVANCED_OPTIONS && MMU
 220         help
 221           This option allows you to set the amount of virtual address space
 222           allocated to user tasks.  This can be useful in optimizing the
 223           virtual memory layout of the system.
 224
 225           Say N here unless you know what you are doing.
 226
 227 config TASK_SIZE
 228         hex "Size of user task space" if TASK_SIZE_BOOL
 229         default "0x80000000"
 230
 231 choice
 232         prompt "Page size"
 233         default MICROBLAZE_4K_PAGES
 234         depends on ADVANCED_OPTIONS && !MMU
 235         help
 236           Select the kernel logical page size. Increasing the page size
 237           will reduce software overhead at each page boundary, allow
 238           hardware prefetch mechanisms to be more effective, and allow
 239           larger dma transfers increasing IO efficiency and reducing
 240           overhead. However the utilization of memory will increase.
 241           For example, each cached file will using a multiple of the
 242           page size to hold its contents and the difference between the
 243           end of file and the end of page is wasted.
 244
 245           If unsure, choose 4K_PAGES.
 246
 247 config MICROBLAZE_4K_PAGES
 248         bool "4k page size"
 249
 250 config MICROBLAZE_8K_PAGES
 251         bool "8k page size"
 252
 253 config MICROBLAZE_16K_PAGES
 254         bool "16k page size"
 255
 256 config MICROBLAZE_32K_PAGES
 257         bool "32k page size"
 258
 259 endchoice
 260
 261 endmenu
 262
 263 source "mm/Kconfig"
 264
 265 menu "Executable file formats"
 266
 267 source "fs/Kconfig.binfmt"
 268
 269 endmenu
 270
 271 menu "Bus Options"
 272
 273 config PCI
 274         bool "PCI support"
 275
 276 config PCI_DOMAINS
 277         def_bool PCI
 278
 279 config PCI_SYSCALL
 280         def_bool PCI
 281
 282 config PCI_XILINX
 283         bool "Xilinx PCI host bridge support"
 284         depends on PCI
 285
 286 source "drivers/pci/Kconfig"
 287
 288 endmenu
 289
 290 source "net/Kconfig"
 291
 292 source "drivers/Kconfig"
 293
 294 source "fs/Kconfig"
 295
 296 source "arch/microblaze/Kconfig.debug"
 297
 298 source "security/Kconfig"
 299
 300 source "crypto/Kconfig"
 301
 302 source "lib/Kconfig"