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