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        select MODULES_USE_ELF_RELA
  34        ---help---
  35          Qualcomm Hexagon is a processor architecture designed for high
  36          performance and low power across a wide variety of applications.
  37
  38config HEXAGON_ARCH_V1
  39        bool
  40
  41config HEXAGON_ARCH_V2
  42        bool
  43
  44config HEXAGON_ARCH_V3
  45        bool
  46
  47config HEXAGON_ARCH_V4
  48        bool
  49
  50config FRAME_POINTER
  51        def_bool y
  52
  53config LOCKDEP_SUPPORT
  54        def_bool y
  55
  56config PCI
  57        def_bool n
  58
  59config EARLY_PRINTK
  60        def_bool y
  61
  62config MMU
  63        def_bool y
  64
  65config TRACE_IRQFLAGS_SUPPORT
  66        def_bool y
  67
  68config GENERIC_CSUM
  69        def_bool y
  70
  71#
  72# Use the generic interrupt handling code in kernel/irq/:
  73#
  74config GENERIC_IRQ_PROBE
  75        def_bool y
  76
  77config NEED_SG_DMA_LENGTH
  78        def_bool y
  79
  80config RWSEM_GENERIC_SPINLOCK
  81        def_bool n
  82
  83config RWSEM_XCHGADD_ALGORITHM
  84        def_bool y
  85
  86config GENERIC_FIND_NEXT_BIT
  87        def_bool y
  88
  89config GENERIC_HWEIGHT
  90        def_bool y
  91
  92config STACKTRACE_SUPPORT
  93        def_bool y
  94        select STACKTRACE
  95
  96config GENERIC_BUG
  97        def_bool y
  98        depends on BUG
  99
 100menu "Machine selection"
 101
 102choice
 103        prompt "System type"
 104        default HEXAGON_COMET
 105
 106config HEXAGON_COMET
 107        bool "Comet Board"
 108        select HEXAGON_ARCH_V2
 109        ---help---
 110          Support for the Comet platform.
 111
 112endchoice
 113
 114config HEXAGON_VM
 115        def_bool y
 116
 117config CMDLINE
 118        string "Default kernel command string"
 119        default ""
 120        help
 121          On some platforms, there is currently no way for the boot loader
 122          to pass arguments to the kernel. For these, you should supply some
 123          command-line options at build time by entering them here.  At a
 124          minimum, you should specify the memory size and the root device
 125          (e.g., mem=64M root=/dev/nfs).
 126
 127config HEXAGON_ANGEL_TRAPS
 128        bool "Use Angel Traps"
 129        default n
 130        ---help---
 131          Enable angel debug traps (for printk's).
 132
 133config SMP
 134        bool "Multi-Processing support"
 135        ---help---
 136          Enables SMP support in the kernel.  If unsure, say "Y"
 137
 138config NR_CPUS
 139        int "Maximum number of CPUs" if SMP
 140        range 2 6 if SMP
 141        default "1" if !SMP
 142        default "6" if SMP
 143        ---help---
 144          This allows you to specify the maximum number of CPUs which this
 145          kernel will support.  The maximum supported value is 6 and the
 146          minimum value which makes sense is 2.
 147
 148          This is purely to save memory - each supported CPU adds
 149          approximately eight kilobytes to the kernel image.
 150
 151choice
 152        prompt "Kernel page size"
 153        default PAGE_SIZE_4KB
 154        ---help---
 155          Changes the default page size; use with caution.
 156
 157config PAGE_SIZE_4KB
 158        bool "4KB"
 159
 160config PAGE_SIZE_16KB
 161        bool "16KB"
 162
 163config PAGE_SIZE_64KB
 164        bool "64KB"
 165
 166config PAGE_SIZE_256KB
 167        bool "256KB"
 168
 169endchoice
 170
 171source "mm/Kconfig"
 172
 173source "kernel/Kconfig.hz"
 174
 175config GENERIC_GPIO
 176        def_bool n
 177
 178endmenu
 179
 180source "init/Kconfig"
 181source "drivers/Kconfig"
 182source "fs/Kconfig"
 183
 184menu "Executable File Formats"
 185source "fs/Kconfig.binfmt"
 186endmenu
 187
 188source "net/Kconfig"
 189source "security/Kconfig"
 190source "crypto/Kconfig"
 191source "lib/Kconfig"
 192
 193menu "Kernel hacking"
 194source "lib/Kconfig.debug"
 195endmenu
 196
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