LXR linux/arch/hexagon/Kconfig

   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 GENERIC_PENDING_IRQ if SMP
  16        select GENERIC_ATOMIC64
  17        select HAVE_PERF_EVENTS
  18        select HAVE_GENERIC_HARDIRQS
  19        # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
  20        select GENERIC_ALLOCATOR
  21        select GENERIC_IRQ_SHOW
  22        select HAVE_ARCH_KGDB
  23        select HAVE_ARCH_TRACEHOOK
  24        select NO_IOPORT
  25        select GENERIC_IOMAP
  26        select GENERIC_SMP_IDLE_THREAD
  27        select STACKTRACE_SUPPORT
  28        select KTIME_SCALAR
  29        select GENERIC_CLOCKEVENTS
  30        select GENERIC_CLOCKEVENTS_BROADCAST
  31        select MODULES_USE_ELF_RELA
  32        select GENERIC_CPU_DEVICES
  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_PHYS_OFFSET
  38        def_bool y
  39        ---help---
  40          Platforms that don't load the kernel at zero set this.
  41
  42config FRAME_POINTER
  43        def_bool y
  44
  45config LOCKDEP_SUPPORT
  46        def_bool y
  47
  48config PCI
  49        def_bool n
  50
  51config EARLY_PRINTK
  52        def_bool y
  53
  54config MMU
  55        def_bool y
  56
  57config TRACE_IRQFLAGS_SUPPORT
  58        def_bool y
  59
  60config GENERIC_CSUM
  61        def_bool y
  62
  63#
  64# Use the generic interrupt handling code in kernel/irq/:
  65#
  66config GENERIC_IRQ_PROBE
  67        def_bool y
  68
  69config NEED_SG_DMA_LENGTH
  70        def_bool y
  71
  72config RWSEM_GENERIC_SPINLOCK
  73        def_bool n
  74
  75config RWSEM_XCHGADD_ALGORITHM
  76        def_bool y
  77
  78config GENERIC_HWEIGHT
  79        def_bool y
  80
  81config STACKTRACE_SUPPORT
  82        def_bool y
  83        select STACKTRACE
  84
  85config GENERIC_BUG
  86        def_bool y
  87        depends on BUG
  88
  89menu "Machine selection"
  90
  91choice
  92        prompt "System type"
  93        default HEXAGON_COMET
  94
  95config HEXAGON_COMET
  96        bool "Comet Board"
  97        ---help---
  98          Support for the Comet platform.
  99
 100endchoice
 101
 102config HEXAGON_ARCH_VERSION
 103        int "Architecture version"
 104        default 2
 105
 106config CMDLINE
 107        string "Default kernel command string"
 108        default ""
 109        help
 110          On some platforms, there is currently no way for the boot loader
 111          to pass arguments to the kernel. For these, you should supply some
 112          command-line options at build time by entering them here.  At a
 113          minimum, you should specify the memory size and the root device
 114          (e.g., mem=64M root=/dev/nfs).
 115
 116config SMP
 117        bool "Multi-Processing support"
 118        ---help---
 119          Enables SMP support in the kernel.  If unsure, say "Y"
 120
 121config NR_CPUS
 122        int "Maximum number of CPUs" if SMP
 123        range 2 6 if SMP
 124        default "1" if !SMP
 125        default "6" if SMP
 126        ---help---
 127          This allows you to specify the maximum number of CPUs which this
 128          kernel will support.  The maximum supported value is 6 and the
 129          minimum value which makes sense is 2.
 130
 131          This is purely to save memory - each supported CPU adds
 132          approximately eight kilobytes to the kernel image.
 133
 134choice
 135        prompt "Kernel page size"
 136        default PAGE_SIZE_4KB
 137        ---help---
 138          Changes the default page size; use with caution.
 139
 140config PAGE_SIZE_4KB
 141        bool "4KB"
 142
 143config PAGE_SIZE_16KB
 144        bool "16KB"
 145
 146config PAGE_SIZE_64KB
 147        bool "64KB"
 148
 149config PAGE_SIZE_256KB
 150        bool "256KB"
 151
 152endchoice
 153
 154source "mm/Kconfig"
 155
 156source "kernel/Kconfig.hz"
 157
 158endmenu
 159
 160source "init/Kconfig"
 161source "kernel/Kconfig.freezer"
 162source "drivers/Kconfig"
 163source "fs/Kconfig"
 164
 165menu "Executable File Formats"
 166source "fs/Kconfig.binfmt"
 167endmenu
 168
 169source "net/Kconfig"
 170source "security/Kconfig"
 171source "crypto/Kconfig"
 172source "lib/Kconfig"
 173
 174menu "Kernel hacking"
 175source "lib/Kconfig.debug"
 176endmenu
 177