kernel/dma/Kconfig

   1
   2 config HAS_DMA
   3         bool
   4         depends on !NO_DMA
   5         default y
   6
   7 config NEED_SG_DMA_LENGTH
   8         bool
   9
  10 config NEED_DMA_MAP_STATE
  11         bool
  12
  13 config ARCH_DMA_ADDR_T_64BIT
  14         def_bool 64BIT || PHYS_ADDR_T_64BIT
  15
  16 config ARCH_HAS_DMA_COHERENCE_H
  17         bool
  18
  19 config ARCH_HAS_DMA_SET_MASK
  20         bool
  21
  22 config HAVE_GENERIC_DMA_COHERENT
  23         bool
  24
  25 config ARCH_HAS_SYNC_DMA_FOR_DEVICE
  26         bool
  27
  28 config ARCH_HAS_SYNC_DMA_FOR_CPU
  29         bool
  30         select NEED_DMA_MAP_STATE
  31
  32 config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
  33         bool
  34
  35 config ARCH_HAS_DMA_COHERENT_TO_PFN
  36         bool
  37
  38 config ARCH_HAS_DMA_MMAP_PGPROT
  39         bool
  40
  41 config DMA_NONCOHERENT_CACHE_SYNC
  42         bool
  43
  44 config DMA_VIRT_OPS
  45         bool
  46         depends on HAS_DMA
  47
  48 config SWIOTLB
  49         bool
  50         select NEED_DMA_MAP_STATE
  51
  52 config DMA_REMAP
  53         depends on MMU
  54         bool
  55
  56 config DMA_DIRECT_REMAP
  57         bool
  58         select DMA_REMAP