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