arch/microblaze/Kconfig

   1 config MICROBLAZE
   2         def_bool y
   3         select HAVE_MEMBLOCK
   4         select HAVE_MEMBLOCK_NODE_MAP
   5         select HAVE_FUNCTION_TRACER
   6         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
   7         select HAVE_FUNCTION_GRAPH_TRACER
   8         select HAVE_DYNAMIC_FTRACE
   9         select HAVE_FTRACE_MCOUNT_RECORD
  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_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 ZONE_DMA
  32         def_bool y
  33
  34 config ARCH_POPULATES_NODE_MAP
  35         def_bool y
  36
  37 config RWSEM_XCHGADD_ALGORITHM
  38         bool
  39
  40 config ARCH_HAS_ILOG2_U32
  41         def_bool n
  42
  43 config ARCH_HAS_ILOG2_U64
  44         def_bool n
  45
  46 config GENERIC_HWEIGHT
  47         def_bool y
  48
  49 config GENERIC_CALIBRATE_DELAY
  50         def_bool y
  51
  52 config GENERIC_TIME_VSYSCALL
  53         def_bool n
  54
  55 config GENERIC_CLOCKEVENTS
  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 MANUAL_RESET_VECTOR
 194         hex "Microblaze reset vector address setup"
 195         default "0x0"
 196         help
 197           Set this option to have the kernel override the CPU Reset vector.
 198           If zero, no change will be made to the MicroBlaze reset vector at
 199           address 0x0.
 200           If non-zero, a jump instruction to this address, will be written
 201           to the reset vector at address 0x0.
 202           If you are unsure, set it to default value 0x0.
 203
 204 config KERNEL_START_BOOL
 205         bool "Set custom kernel base address"
 206         depends on ADVANCED_OPTIONS
 207         help
 208           This option allows you to set the kernel virtual address at which
 209           the kernel will map low memory (the kernel image will be linked at
 210           this address).  This can be useful in optimizing the virtual memory
 211           layout of the system.
 212
 213           Say N here unless you know what you are doing.
 214
 215 config KERNEL_START
 216         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 217         default "0xc0000000" if MMU
 218         default KERNEL_BASE_ADDR if !MMU
 219
 220 config TASK_SIZE_BOOL
 221         bool "Set custom user task size"
 222         depends on ADVANCED_OPTIONS && MMU
 223         help
 224           This option allows you to set the amount of virtual address space
 225           allocated to user tasks.  This can be useful in optimizing the
 226           virtual memory layout of the system.
 227
 228           Say N here unless you know what you are doing.
 229
 230 config TASK_SIZE
 231         hex "Size of user task space" if TASK_SIZE_BOOL
 232         default "0x80000000"
 233
 234 choice
 235         prompt "Page size"
 236         default MICROBLAZE_4K_PAGES
 237         depends on ADVANCED_OPTIONS && !MMU
 238         help
 239           Select the kernel logical page size. Increasing the page size
 240           will reduce software overhead at each page boundary, allow
 241           hardware prefetch mechanisms to be more effective, and allow
 242           larger dma transfers increasing IO efficiency and reducing
 243           overhead. However the utilization of memory will increase.
 244           For example, each cached file will using a multiple of the
 245           page size to hold its contents and the difference between the
 246           end of file and the end of page is wasted.
 247
 248           If unsure, choose 4K_PAGES.
 249
 250 config MICROBLAZE_4K_PAGES
 251         bool "4k page size"
 252
 253 config MICROBLAZE_8K_PAGES
 254         bool "8k page size"
 255
 256 config MICROBLAZE_16K_PAGES
 257         bool "16k page size"
 258
 259 config MICROBLAZE_32K_PAGES
 260         bool "32k page size"
 261
 262 endchoice
 263
 264 endmenu
 265
 266 source "mm/Kconfig"
 267
 268 menu "Executable file formats"
 269
 270 source "fs/Kconfig.binfmt"
 271
 272 endmenu
 273
 274 menu "Bus Options"
 275
 276 config PCI
 277         bool "PCI support"
 278
 279 config PCI_DOMAINS
 280         def_bool PCI
 281
 282 config PCI_SYSCALL
 283         def_bool PCI
 284
 285 config PCI_XILINX
 286         bool "Xilinx PCI host bridge support"
 287         depends on PCI
 288
 289 source "drivers/pci/Kconfig"
 290
 291 endmenu
 292
 293 source "net/Kconfig"
 294
 295 source "drivers/Kconfig"
 296
 297 source "fs/Kconfig"
 298
 299 source "arch/microblaze/Kconfig.debug"
 300
 301 source "security/Kconfig"
 302
 303 source "crypto/Kconfig"
 304
 305 source "lib/Kconfig"