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 ARCH_WANT_IPC_PARSE_VERSION
  19         select HAVE_DEBUG_KMEMLEAK
  20         select IRQ_DOMAIN
  21         select HAVE_GENERIC_HARDIRQS
  22         select GENERIC_IRQ_PROBE
  23         select GENERIC_IRQ_SHOW
  24         select GENERIC_PCI_IOMAP
  25         select GENERIC_CPU_DEVICES
  26         select GENERIC_ATOMIC64
  27         select GENERIC_CLOCKEVENTS
  28         select MODULES_USE_ELF_RELA
  29         select GENERIC_KERNEL_THREAD
  30         select GENERIC_KERNEL_EXECVE
  31
  32 config SWAP
  33         def_bool n
  34
  35 config RWSEM_GENERIC_SPINLOCK
  36         def_bool y
  37
  38 config ZONE_DMA
  39         def_bool y
  40
  41 config ARCH_POPULATES_NODE_MAP
  42         def_bool y
  43
  44 config RWSEM_XCHGADD_ALGORITHM
  45         bool
  46
  47 config ARCH_HAS_ILOG2_U32
  48         def_bool n
  49
  50 config ARCH_HAS_ILOG2_U64
  51         def_bool n
  52
  53 config GENERIC_HWEIGHT
  54         def_bool y
  55
  56 config GENERIC_CALIBRATE_DELAY
  57         def_bool y
  58
  59 config GENERIC_GPIO
  60         bool
  61
  62 config GENERIC_CSUM
  63         def_bool y
  64
  65 config STACKTRACE_SUPPORT
  66         def_bool y
  67
  68 config LOCKDEP_SUPPORT
  69         def_bool y
  70
  71 config HAVE_LATENCYTOP_SUPPORT
  72         def_bool y
  73
  74 source "init/Kconfig"
  75
  76 source "kernel/Kconfig.freezer"
  77
  78 source "arch/microblaze/platform/Kconfig.platform"
  79
  80 menu "Processor type and features"
  81
  82 source "kernel/Kconfig.preempt"
  83
  84 source "kernel/Kconfig.hz"
  85
  86 config MMU
  87         bool "MMU support"
  88         default n
  89
  90 config NO_MMU
  91         bool
  92         depends on !MMU
  93         default y
  94
  95 comment "Boot options"
  96
  97 config CMDLINE_BOOL
  98         bool "Default bootloader kernel arguments"
  99
 100 config CMDLINE
 101         string "Default kernel command string"
 102         depends on CMDLINE_BOOL
 103         default "console=ttyUL0,115200"
 104         help
 105           On some architectures there is currently no way for the boot loader
 106           to pass arguments to the kernel. For these architectures, you should
 107           supply some command-line options at build time by entering them
 108           here.
 109
 110 config CMDLINE_FORCE
 111         bool "Force default kernel command string"
 112         depends on CMDLINE_BOOL
 113         default n
 114         help
 115           Set this to have arguments from the default kernel command string
 116           override those passed by the boot loader.
 117
 118 config SECCOMP
 119         bool "Enable seccomp to safely compute untrusted bytecode"
 120         depends on PROC_FS
 121         default y
 122         help
 123           This kernel feature is useful for number crunching applications
 124           that may need to compute untrusted bytecode during their
 125           execution. By using pipes or other transports made available to
 126           the process as file descriptors supporting the read/write
 127           syscalls, it's possible to isolate those applications in
 128           their own address space using seccomp. Once seccomp is
 129           enabled via /proc/<pid>/seccomp, it cannot be disabled
 130           and the task is only allowed to execute a few safe syscalls
 131           defined by each seccomp mode.
 132
 133           If unsure, say Y. Only embedded should say N here.
 134
 135 endmenu
 136
 137 menu "Advanced setup"
 138
 139 config ADVANCED_OPTIONS
 140         bool "Prompt for advanced kernel configuration options"
 141         help
 142           This option will enable prompting for a variety of advanced kernel
 143           configuration options.  These options can cause the kernel to not
 144           work if they are set incorrectly, but can be used to optimize certain
 145           aspects of kernel memory management.
 146
 147           Unless you know what you are doing, say N here.
 148
 149 comment "Default settings for advanced configuration options are used"
 150         depends on !ADVANCED_OPTIONS
 151
 152 config XILINX_UNCACHED_SHADOW
 153         bool "Are you using uncached shadow for RAM ?"
 154         depends on ADVANCED_OPTIONS && !MMU
 155         default n
 156         help
 157           This is needed to be able to allocate uncachable memory regions.
 158           The feature requires the design to define the RAM memory controller
 159           window to be twice as large as the actual physical memory.
 160
 161 config HIGHMEM
 162         bool "High memory support"
 163         depends on MMU
 164         help
 165           The address space of Microblaze processors is only 4 Gigabytes large
 166           and it has to accommodate user address space, kernel address
 167           space as well as some memory mapped IO. That means that, if you
 168           have a large amount of physical memory and/or IO, not all of the
 169           memory can be "permanently mapped" by the kernel. The physical
 170           memory that is not permanently mapped is called "high memory".
 171
 172           If unsure, say n.
 173
 174 config LOWMEM_SIZE_BOOL
 175         bool "Set maximum low memory"
 176         depends on ADVANCED_OPTIONS && MMU
 177         help
 178           This option allows you to set the maximum amount of memory which
 179           will be used as "low memory", that is, memory which the kernel can
 180           access directly, without having to set up a kernel virtual mapping.
 181           This can be useful in optimizing the layout of kernel virtual
 182           memory.
 183
 184           Say N here unless you know what you are doing.
 185
 186 config LOWMEM_SIZE
 187         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 188         default "0x30000000"
 189
 190 config MANUAL_RESET_VECTOR
 191         hex "Microblaze reset vector address setup"
 192         default "0x0"
 193         help
 194           Set this option to have the kernel override the CPU Reset vector.
 195           If zero, no change will be made to the MicroBlaze reset vector at
 196           address 0x0.
 197           If non-zero, a jump instruction to this address, will be written
 198           to the reset vector at address 0x0.
 199           If you are unsure, set it to default value 0x0.
 200
 201 config KERNEL_START_BOOL
 202         bool "Set custom kernel base address"
 203         depends on ADVANCED_OPTIONS
 204         help
 205           This option allows you to set the kernel virtual address at which
 206           the kernel will map low memory (the kernel image will be linked at
 207           this address).  This can be useful in optimizing the virtual memory
 208           layout of the system.
 209
 210           Say N here unless you know what you are doing.
 211
 212 config KERNEL_START
 213         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 214         default "0xc0000000" if MMU
 215         default KERNEL_BASE_ADDR if !MMU
 216
 217 config TASK_SIZE_BOOL
 218         bool "Set custom user task size"
 219         depends on ADVANCED_OPTIONS && MMU
 220         help
 221           This option allows you to set the amount of virtual address space
 222           allocated to user tasks.  This can be useful in optimizing the
 223           virtual memory layout of the system.
 224
 225           Say N here unless you know what you are doing.
 226
 227 config TASK_SIZE
 228         hex "Size of user task space" if TASK_SIZE_BOOL
 229         default "0x80000000"
 230
 231 choice
 232         prompt "Page size"
 233         default MICROBLAZE_4K_PAGES
 234         depends on ADVANCED_OPTIONS && !MMU
 235         help
 236           Select the kernel logical page size. Increasing the page size
 237           will reduce software overhead at each page boundary, allow
 238           hardware prefetch mechanisms to be more effective, and allow
 239           larger dma transfers increasing IO efficiency and reducing
 240           overhead. However the utilization of memory will increase.
 241           For example, each cached file will using a multiple of the
 242           page size to hold its contents and the difference between the
 243           end of file and the end of page is wasted.
 244
 245           If unsure, choose 4K_PAGES.
 246
 247 config MICROBLAZE_4K_PAGES
 248         bool "4k page size"
 249
 250 config MICROBLAZE_16K_PAGES
 251         bool "16k page size"
 252
 253 config MICROBLAZE_64K_PAGES
 254         bool "64k page size"
 255
 256 endchoice
 257
 258 config KERNEL_PAD
 259         hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
 260         default "0x80000" if MMU
 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"