arch/hexagon/Kconfig

   1 # Hexagon configuration
   2 comment "Linux Kernel Configuration for Hexagon"
   3
   4 config HEXAGON
   5         def_bool y
   6         select HAVE_OPROFILE
   7         select USE_GENERIC_SMP_HELPERS if SMP
   8         # Other pending projects/to-do items.
   9         # select HAVE_REGS_AND_STACK_ACCESS_API
  10         # select HAVE_HW_BREAKPOINT if PERF_EVENTS
  11         # select ARCH_HAS_CPU_IDLE_WAIT
  12         # select ARCH_WANT_OPTIONAL_GPIOLIB
  13         # select ARCH_REQUIRE_GPIOLIB
  14         # select HAVE_CLK
  15         # select IRQ_PER_CPU
  16         select HAVE_IRQ_WORK
  17         # select GENERIC_PENDING_IRQ if SMP
  18         select GENERIC_ATOMIC64
  19         select HAVE_PERF_EVENTS
  20         select HAVE_GENERIC_HARDIRQS
  21         select GENERIC_HARDIRQS_NO__DO_IRQ
  22         select GENERIC_HARDIRQS_NO_DEPRECATED
  23         # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
  24         select GENERIC_ALLOCATOR
  25         select GENERIC_IRQ_SHOW
  26         select HAVE_ARCH_KGDB
  27         select HAVE_ARCH_TRACEHOOK
  28         select NO_IOPORT
  29         select GENERIC_IOMAP
  30         # mostly generic routines, with some accelerated ones
  31         ---help---
  32           Qualcomm Hexagon is a processor architecture designed for high
  33           performance and low power across a wide variety of applications.
  34
  35 config HEXAGON_ARCH_V1
  36         bool
  37
  38 config HEXAGON_ARCH_V2
  39         bool
  40
  41 config HEXAGON_ARCH_V3
  42         bool
  43
  44 config HEXAGON_ARCH_V4
  45         bool
  46
  47 config FRAME_POINTER
  48         def_bool y
  49
  50 config LOCKDEP_SUPPORT
  51         def_bool y
  52
  53 config PCI
  54         def_bool n
  55
  56 config EARLY_PRINTK
  57         def_bool y
  58
  59 config KTIME_SCALAR
  60         def_bool y
  61
  62 config MMU
  63         def_bool y
  64
  65 config TRACE_IRQFLAGS_SUPPORT
  66         def_bool y
  67
  68 config GENERIC_CSUM
  69         def_bool y
  70
  71 #
  72 # Use the generic interrupt handling code in kernel/irq/:
  73 #
  74 config GENERIC_IRQ_PROBE
  75         def_bool y
  76
  77 #config ZONE_DMA
  78 #       bool
  79 #       default y
  80
  81 config HAS_DMA
  82         bool
  83         select HAVE_DMA_ATTRS
  84         default y
  85
  86 config NEED_SG_DMA_LENGTH
  87         def_bool y
  88
  89 config RWSEM_GENERIC_SPINLOCK
  90         def_bool n
  91
  92 config RWSEM_XCHGADD_ALGORITHM
  93         def_bool y
  94
  95 config GENERIC_FIND_NEXT_BIT
  96         def_bool y
  97
  98 config GENERIC_HWEIGHT
  99         def_bool y
 100
 101 config GENERIC_TIME
 102         def_bool y
 103
 104 config GENERIC_CLOCKEVENTS
 105         def_bool y
 106
 107 config GENERIC_CLOCKEVENTS_BROADCAST
 108         def_bool y
 109
 110 config STACKTRACE_SUPPORT
 111         def_bool y
 112         select STACKTRACE
 113
 114 config GENERIC_BUG
 115         def_bool y
 116         depends on BUG
 117
 118 config BUG
 119         def_bool y
 120
 121 menu "Machine selection"
 122
 123 choice
 124         prompt "System type"
 125         default HEXAGON_ARCH_V2
 126
 127 config HEXAGON_COMET
 128         bool "Comet Board"
 129         select HEXAGON_ARCH_V2
 130         ---help---
 131           Support for the Comet platform.
 132
 133 endchoice
 134
 135 config HEXAGON_VM
 136         def_bool y
 137
 138 config CMDLINE
 139         string "Default kernel command string"
 140         default ""
 141         help
 142           On some platforms, there is currently no way for the boot loader
 143           to pass arguments to the kernel. For these, you should supply some
 144           command-line options at build time by entering them here.  At a
 145           minimum, you should specify the memory size and the root device
 146           (e.g., mem=64M root=/dev/nfs).
 147
 148 config HEXAGON_ANGEL_TRAPS
 149         bool "Use Angel Traps"
 150         default n
 151         ---help---
 152           Enable angel debug traps (for printk's).
 153
 154 config SMP
 155         bool "Multi-Processing support"
 156         ---help---
 157           Enables SMP support in the kernel.  If unsure, say "Y"
 158
 159 config NR_CPUS
 160         int "Maximum number of CPUs" if SMP
 161         range 2 6 if SMP
 162         default "1" if !SMP
 163         default "6" if SMP
 164         ---help---
 165           This allows you to specify the maximum number of CPUs which this
 166           kernel will support.  The maximum supported value is 6 and the
 167           minimum value which makes sense is 2.
 168
 169           This is purely to save memory - each supported CPU adds
 170           approximately eight kilobytes to the kernel image.
 171
 172 choice
 173         prompt "Kernel page size"
 174         default PAGE_SIZE_4KB
 175         ---help---
 176           Changes the default page size; use with caution.
 177
 178 config PAGE_SIZE_4KB
 179         bool "4KB"
 180
 181 config PAGE_SIZE_16KB
 182         bool "16KB"
 183
 184 config PAGE_SIZE_64KB
 185         bool "64KB"
 186
 187 config PAGE_SIZE_256KB
 188         bool "256KB"
 189
 190 endchoice
 191
 192 source "mm/Kconfig"
 193
 194 source "kernel/Kconfig.hz"
 195 source "kernel/time/Kconfig"
 196
 197 config GENERIC_GPIO
 198         bool "Generic GPIO support"
 199         default n
 200
 201 endmenu
 202
 203 source "init/Kconfig"
 204 source "drivers/Kconfig"
 205 source "fs/Kconfig"
 206
 207 menu "Executable File Formats"
 208 source "fs/Kconfig.binfmt"
 209 endmenu
 210
 211 source "net/Kconfig"
 212 source "security/Kconfig"
 213 source "crypto/Kconfig"
 214 source "lib/Kconfig"
 215
 216 menu "Kernel hacking"
 217 source "lib/Kconfig.debug"
 218 endmenu