arch/hexagon/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 # Hexagon configuration
   3 comment "Linux Kernel Configuration for Hexagon"
   4
   5 config HEXAGON
   6         def_bool y
   7         select ARCH_32BIT_OFF_T
   8         select ARCH_HAS_SYNC_DMA_FOR_DEVICE
   9         select ARCH_NO_PREEMPT
  10         select HAVE_OPROFILE
  11         # Other pending projects/to-do items.
  12         # select HAVE_REGS_AND_STACK_ACCESS_API
  13         # select HAVE_HW_BREAKPOINT if PERF_EVENTS
  14         # select ARCH_HAS_CPU_IDLE_WAIT
  15         # select GPIOLIB
  16         # select HAVE_CLK
  17         # select GENERIC_PENDING_IRQ if SMP
  18         select GENERIC_ATOMIC64
  19         select HAVE_PERF_EVENTS
  20         # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
  21         select GENERIC_ALLOCATOR
  22         select GENERIC_IRQ_SHOW
  23         select HAVE_ARCH_KGDB
  24         select HAVE_ARCH_TRACEHOOK
  25         select NEED_SG_DMA_LENGTH
  26         select NO_IOPORT_MAP
  27         select GENERIC_IOMAP
  28         select GENERIC_SMP_IDLE_THREAD
  29         select STACKTRACE_SUPPORT
  30         select GENERIC_CLOCKEVENTS_BROADCAST
  31         select MODULES_USE_ELF_RELA
  32         select GENERIC_CPU_DEVICES
  33         select SET_FS
  34         help
  35           Qualcomm Hexagon is a processor architecture designed for high
  36           performance and low power across a wide variety of applications.
  37
  38 config HEXAGON_PHYS_OFFSET
  39         def_bool y
  40         help
  41           Platforms that don't load the kernel at zero set this.
  42
  43 config FRAME_POINTER
  44         def_bool y
  45
  46 config LOCKDEP_SUPPORT
  47         def_bool y
  48
  49 config EARLY_PRINTK
  50         def_bool y
  51
  52 config MMU
  53         def_bool y
  54
  55 config TRACE_IRQFLAGS_SUPPORT
  56         def_bool y
  57
  58 config GENERIC_CSUM
  59         def_bool y
  60
  61 #
  62 # Use the generic interrupt handling code in kernel/irq/:
  63 #
  64 config GENERIC_IRQ_PROBE
  65         def_bool y
  66
  67 config GENERIC_HWEIGHT
  68         def_bool y
  69
  70 config STACKTRACE_SUPPORT
  71         def_bool y
  72         select STACKTRACE
  73
  74 config GENERIC_BUG
  75         def_bool y
  76         depends on BUG
  77
  78 menu "Machine selection"
  79
  80 choice
  81         prompt "System type"
  82         default HEXAGON_COMET
  83
  84 config HEXAGON_COMET
  85         bool "Comet Board"
  86         help
  87           Support for the Comet platform.
  88
  89 endchoice
  90
  91 config HEXAGON_ARCH_VERSION
  92         int "Architecture version"
  93         default 2
  94
  95 config CMDLINE
  96         string "Default kernel command string"
  97         default ""
  98         help
  99           On some platforms, there is currently no way for the boot loader
 100           to pass arguments to the kernel. For these, you should supply some
 101           command-line options at build time by entering them here.  At a
 102           minimum, you should specify the memory size and the root device
 103           (e.g., mem=64M root=/dev/nfs).
 104
 105 config SMP
 106         bool "Multi-Processing support"
 107         help
 108           Enables SMP support in the kernel.  If unsure, say "Y"
 109
 110 config NR_CPUS
 111         int "Maximum number of CPUs" if SMP
 112         range 2 6 if SMP
 113         default "1" if !SMP
 114         default "6" if SMP
 115         help
 116           This allows you to specify the maximum number of CPUs which this
 117           kernel will support.  The maximum supported value is 6 and the
 118           minimum value which makes sense is 2.
 119
 120           This is purely to save memory - each supported CPU adds
 121           approximately eight kilobytes to the kernel image.
 122
 123 choice
 124         prompt "Kernel page size"
 125         default PAGE_SIZE_4KB
 126         help
 127           Changes the default page size; use with caution.
 128
 129 config PAGE_SIZE_4KB
 130         bool "4KB"
 131
 132 config PAGE_SIZE_16KB
 133         bool "16KB"
 134
 135 config PAGE_SIZE_64KB
 136         bool "64KB"
 137
 138 config PAGE_SIZE_256KB
 139         bool "256KB"
 140
 141 endchoice
 142
 143 source "kernel/Kconfig.hz"
 144
 145 endmenu