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