linux/arch/microblaze/Kconfig
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   1config 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
  21config SWAP
  22        def_bool n
  23
  24config RWSEM_GENERIC_SPINLOCK
  25        def_bool y
  26
  27config RWSEM_XCHGADD_ALGORITHM
  28        bool
  29
  30config ARCH_HAS_ILOG2_U32
  31        def_bool n
  32
  33config ARCH_HAS_ILOG2_U64
  34        def_bool n
  35
  36config GENERIC_HWEIGHT
  37        def_bool y
  38
  39config GENERIC_CALIBRATE_DELAY
  40        def_bool y
  41
  42config GENERIC_TIME_VSYSCALL
  43        def_bool n
  44
  45config GENERIC_CLOCKEVENTS
  46        def_bool y
  47
  48config GENERIC_GPIO
  49        def_bool y
  50
  51config GENERIC_CSUM
  52        def_bool y
  53
  54config STACKTRACE_SUPPORT
  55        def_bool y
  56
  57config LOCKDEP_SUPPORT
  58        def_bool y
  59
  60config HAVE_LATENCYTOP_SUPPORT
  61        def_bool y
  62
  63source "init/Kconfig"
  64
  65source "kernel/Kconfig.freezer"
  66
  67source "arch/microblaze/platform/Kconfig.platform"
  68
  69menu "Processor type and features"
  70
  71source "kernel/time/Kconfig"
  72
  73source "kernel/Kconfig.preempt"
  74
  75source "kernel/Kconfig.hz"
  76
  77config MMU
  78        bool "MMU support"
  79        default n
  80
  81config NO_MMU
  82        bool
  83        depends on !MMU
  84        default y
  85
  86comment "Boot options"
  87
  88config CMDLINE_BOOL
  89        bool "Default bootloader kernel arguments"
  90
  91config 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
 101config 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
 109config 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
 126endmenu
 127
 128menu "Advanced setup"
 129
 130config 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
 140comment "Default settings for advanced configuration options are used"
 141        depends on !ADVANCED_OPTIONS
 142
 143config 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
 152config 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
 162config HIGHMEM_START
 163        hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 164        depends on MMU
 165        default "0xfe000000"
 166
 167config 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
 179config LOWMEM_SIZE
 180        hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 181        default "0x30000000"
 182
 183config 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
 194config 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
 205config 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
 210config 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
 220config TASK_SIZE
 221        hex "Size of user task space" if TASK_SIZE_BOOL
 222        default "0x80000000"
 223
 224choice
 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
 240config MICROBLAZE_4K_PAGES
 241        bool "4k page size"
 242
 243config MICROBLAZE_8K_PAGES
 244        bool "8k page size"
 245
 246config MICROBLAZE_16K_PAGES
 247        bool "16k page size"
 248
 249config MICROBLAZE_32K_PAGES
 250        bool "32k page size"
 251
 252endchoice
 253
 254endmenu
 255
 256source "mm/Kconfig"
 257
 258menu "Executable file formats"
 259
 260source "fs/Kconfig.binfmt"
 261
 262endmenu
 263
 264menu "Bus Options"
 265
 266config PCI
 267        bool "PCI support"
 268
 269config PCI_DOMAINS
 270        def_bool PCI
 271
 272config PCI_SYSCALL
 273        def_bool PCI
 274
 275config PCI_XILINX
 276        bool "Xilinx PCI host bridge support"
 277        depends on PCI
 278
 279source "drivers/pci/Kconfig"
 280
 281endmenu
 282
 283source "net/Kconfig"
 284
 285source "drivers/Kconfig"
 286
 287source "fs/Kconfig"
 288
 289source "arch/microblaze/Kconfig.debug"
 290
 291source "security/Kconfig"
 292
 293source "crypto/Kconfig"
 294
 295source "lib/Kconfig"
 296
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