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