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         select GENERIC_ATOMIC64
  23
  24 config SWAP
  25         def_bool n
  26
  27 config RWSEM_GENERIC_SPINLOCK
  28         def_bool y
  29
  30 config ZONE_DMA
  31         def_bool y
  32
  33 config RWSEM_XCHGADD_ALGORITHM
  34         bool
  35
  36 config ARCH_HAS_ILOG2_U32
  37         def_bool n
  38
  39 config ARCH_HAS_ILOG2_U64
  40         def_bool n
  41
  42 config GENERIC_HWEIGHT
  43         def_bool y
  44
  45 config GENERIC_CALIBRATE_DELAY
  46         def_bool y
  47
  48 config GENERIC_TIME_VSYSCALL
  49         def_bool n
  50
  51 config GENERIC_CLOCKEVENTS
  52         def_bool y
  53
  54 config GENERIC_GPIO
  55         def_bool y
  56
  57 config GENERIC_CSUM
  58         def_bool y
  59
  60 config STACKTRACE_SUPPORT
  61         def_bool y
  62
  63 config LOCKDEP_SUPPORT
  64         def_bool y
  65
  66 config HAVE_LATENCYTOP_SUPPORT
  67         def_bool y
  68
  69 source "init/Kconfig"
  70
  71 source "kernel/Kconfig.freezer"
  72
  73 source "arch/microblaze/platform/Kconfig.platform"
  74
  75 menu "Processor type and features"
  76
  77 source "kernel/time/Kconfig"
  78
  79 source "kernel/Kconfig.preempt"
  80
  81 source "kernel/Kconfig.hz"
  82
  83 config MMU
  84         bool "MMU support"
  85         default n
  86
  87 config NO_MMU
  88         bool
  89         depends on !MMU
  90         default y
  91
  92 comment "Boot options"
  93
  94 config CMDLINE_BOOL
  95         bool "Default bootloader kernel arguments"
  96
  97 config CMDLINE
  98         string "Default kernel command string"
  99         depends on CMDLINE_BOOL
 100         default "console=ttyUL0,115200"
 101         help
 102           On some architectures there is currently no way for the boot loader
 103           to pass arguments to the kernel. For these architectures, you should
 104           supply some command-line options at build time by entering them
 105           here.
 106
 107 config CMDLINE_FORCE
 108         bool "Force default kernel command string"
 109         depends on CMDLINE_BOOL
 110         default n
 111         help
 112           Set this to have arguments from the default kernel command string
 113           override those passed by the boot loader.
 114
 115 config SECCOMP
 116         bool "Enable seccomp to safely compute untrusted bytecode"
 117         depends on PROC_FS
 118         default y
 119         help
 120           This kernel feature is useful for number crunching applications
 121           that may need to compute untrusted bytecode during their
 122           execution. By using pipes or other transports made available to
 123           the process as file descriptors supporting the read/write
 124           syscalls, it's possible to isolate those applications in
 125           their own address space using seccomp. Once seccomp is
 126           enabled via /proc/<pid>/seccomp, it cannot be disabled
 127           and the task is only allowed to execute a few safe syscalls
 128           defined by each seccomp mode.
 129
 130           If unsure, say Y. Only embedded should say N here.
 131
 132 endmenu
 133
 134 menu "Advanced setup"
 135
 136 config ADVANCED_OPTIONS
 137         bool "Prompt for advanced kernel configuration options"
 138         help
 139           This option will enable prompting for a variety of advanced kernel
 140           configuration options.  These options can cause the kernel to not
 141           work if they are set incorrectly, but can be used to optimize certain
 142           aspects of kernel memory management.
 143
 144           Unless you know what you are doing, say N here.
 145
 146 comment "Default settings for advanced configuration options are used"
 147         depends on !ADVANCED_OPTIONS
 148
 149 config XILINX_UNCACHED_SHADOW
 150         bool "Are you using uncached shadow for RAM ?"
 151         depends on ADVANCED_OPTIONS && !MMU
 152         default n
 153         help
 154           This is needed to be able to allocate uncachable memory regions.
 155           The feature requires the design to define the RAM memory controller
 156           window to be twice as large as the actual physical memory.
 157
 158 config HIGHMEM_START_BOOL
 159         bool "Set high memory pool address"
 160         depends on ADVANCED_OPTIONS && HIGHMEM
 161         help
 162           This option allows you to set the base address of the kernel virtual
 163           area used to map high memory pages.  This can be useful in
 164           optimizing the layout of kernel virtual memory.
 165
 166           Say N here unless you know what you are doing.
 167
 168 config HIGHMEM_START
 169         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 170         depends on MMU
 171         default "0xfe000000"
 172
 173 config LOWMEM_SIZE_BOOL
 174         bool "Set maximum low memory"
 175         depends on ADVANCED_OPTIONS && MMU
 176         help
 177           This option allows you to set the maximum amount of memory which
 178           will be used as "low memory", that is, memory which the kernel can
 179           access directly, without having to set up a kernel virtual mapping.
 180           This can be useful in optimizing the layout of kernel virtual
 181           memory.
 182
 183           Say N here unless you know what you are doing.
 184
 185 config LOWMEM_SIZE
 186         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 187         default "0x30000000"
 188
 189 config MANUAL_RESET_VECTOR
 190         hex "Microblaze reset vector address setup"
 191         default "0x0"
 192         help
 193           Set this option to have the kernel override the CPU Reset vector.
 194           If zero, no change will be made to the MicroBlaze reset vector at
 195           address 0x0.
 196           If non-zero, a jump instruction to this address, will be written
 197           to the reset vector at address 0x0.
 198           If you are unsure, set it to default value 0x0.
 199
 200 config KERNEL_START_BOOL
 201         bool "Set custom kernel base address"
 202         depends on ADVANCED_OPTIONS
 203         help
 204           This option allows you to set the kernel virtual address at which
 205           the kernel will map low memory (the kernel image will be linked at
 206           this address).  This can be useful in optimizing the virtual memory
 207           layout of the system.
 208
 209           Say N here unless you know what you are doing.
 210
 211 config KERNEL_START
 212         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 213         default "0xc0000000" if MMU
 214         default KERNEL_BASE_ADDR if !MMU
 215
 216 config TASK_SIZE_BOOL
 217         bool "Set custom user task size"
 218         depends on ADVANCED_OPTIONS && MMU
 219         help
 220           This option allows you to set the amount of virtual address space
 221           allocated to user tasks.  This can be useful in optimizing the
 222           virtual memory layout of the system.
 223
 224           Say N here unless you know what you are doing.
 225
 226 config TASK_SIZE
 227         hex "Size of user task space" if TASK_SIZE_BOOL
 228         default "0x80000000"
 229
 230 choice
 231         prompt "Page size"
 232         default MICROBLAZE_4K_PAGES
 233         depends on ADVANCED_OPTIONS && !MMU
 234         help
 235           Select the kernel logical page size. Increasing the page size
 236           will reduce software overhead at each page boundary, allow
 237           hardware prefetch mechanisms to be more effective, and allow
 238           larger dma transfers increasing IO efficiency and reducing
 239           overhead. However the utilization of memory will increase.
 240           For example, each cached file will using a multiple of the
 241           page size to hold its contents and the difference between the
 242           end of file and the end of page is wasted.
 243
 244           If unsure, choose 4K_PAGES.
 245
 246 config MICROBLAZE_4K_PAGES
 247         bool "4k page size"
 248
 249 config MICROBLAZE_8K_PAGES
 250         bool "8k page size"
 251
 252 config MICROBLAZE_16K_PAGES
 253         bool "16k page size"
 254
 255 config MICROBLAZE_32K_PAGES
 256         bool "32k page size"
 257
 258 endchoice
 259
 260 endmenu
 261
 262 source "mm/Kconfig"
 263
 264 menu "Executable file formats"
 265
 266 source "fs/Kconfig.binfmt"
 267
 268 endmenu
 269
 270 menu "Bus Options"
 271
 272 config PCI
 273         bool "PCI support"
 274
 275 config PCI_DOMAINS
 276         def_bool PCI
 277
 278 config PCI_SYSCALL
 279         def_bool PCI
 280
 281 config PCI_XILINX
 282         bool "Xilinx PCI host bridge support"
 283         depends on PCI
 284
 285 source "drivers/pci/Kconfig"
 286
 287 endmenu
 288
 289 source "net/Kconfig"
 290
 291 source "drivers/Kconfig"
 292
 293 source "fs/Kconfig"
 294
 295 source "arch/microblaze/Kconfig.debug"
 296
 297 source "security/Kconfig"
 298
 299 source "crypto/Kconfig"
 300
 301 source "lib/Kconfig"