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