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 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
  37 config HEXAGON_PHYS_OFFSET
  38         def_bool y
  39         ---help---
  40           Platforms that don't load the kernel at zero set this.
  41
  42 config FRAME_POINTER
  43         def_bool y
  44
  45 config LOCKDEP_SUPPORT
  46         def_bool y
  47
  48 config PCI
  49         def_bool n
  50
  51 config EARLY_PRINTK
  52         def_bool y
  53
  54 config MMU
  55         def_bool y
  56
  57 config TRACE_IRQFLAGS_SUPPORT
  58         def_bool y
  59
  60 config GENERIC_CSUM
  61         def_bool y
  62
  63 #
  64 # Use the generic interrupt handling code in kernel/irq/:
  65 #
  66 config GENERIC_IRQ_PROBE
  67         def_bool y
  68
  69 config NEED_SG_DMA_LENGTH
  70         def_bool y
  71
  72 config RWSEM_GENERIC_SPINLOCK
  73         def_bool n
  74
  75 config RWSEM_XCHGADD_ALGORITHM
  76         def_bool y
  77
  78 config GENERIC_HWEIGHT
  79         def_bool y
  80
  81 config STACKTRACE_SUPPORT
  82         def_bool y
  83         select STACKTRACE
  84
  85 config GENERIC_BUG
  86         def_bool y
  87         depends on BUG
  88
  89 menu "Machine selection"
  90
  91 choice
  92         prompt "System type"
  93         default HEXAGON_COMET
  94
  95 config HEXAGON_COMET
  96         bool "Comet Board"
  97         ---help---
  98           Support for the Comet platform.
  99
 100 endchoice
 101
 102 config HEXAGON_ARCH_VERSION
 103         int "Architecture version"
 104         default 2
 105
 106 config 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
 116 config SMP
 117         bool "Multi-Processing support"
 118         ---help---
 119           Enables SMP support in the kernel.  If unsure, say "Y"
 120
 121 config 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
 134 choice
 135         prompt "Kernel page size"
 136         default PAGE_SIZE_4KB
 137         ---help---
 138           Changes the default page size; use with caution.
 139
 140 config PAGE_SIZE_4KB
 141         bool "4KB"
 142
 143 config PAGE_SIZE_16KB
 144         bool "16KB"
 145
 146 config PAGE_SIZE_64KB
 147         bool "64KB"
 148
 149 config PAGE_SIZE_256KB
 150         bool "256KB"
 151
 152 endchoice
 153
 154 source "mm/Kconfig"
 155
 156 source "kernel/Kconfig.hz"
 157
 158 endmenu
 159
 160 source "init/Kconfig"
 161 source "drivers/Kconfig"
 162 source "fs/Kconfig"
 163
 164 menu "Executable File Formats"
 165 source "fs/Kconfig.binfmt"
 166 endmenu
 167
 168 source "net/Kconfig"
 169 source "security/Kconfig"
 170 source "crypto/Kconfig"
 171 source "lib/Kconfig"
 172
 173 menu "Kernel hacking"
 174 source "lib/Kconfig.debug"
 175 endmenu