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 HAVE_GENERIC_DMA_COHERENT
  20         bool
  21
  22 config ARCH_HAS_SYNC_DMA_FOR_DEVICE
  23         bool
  24
  25 config ARCH_HAS_SYNC_DMA_FOR_CPU
  26         bool
  27         select NEED_DMA_MAP_STATE
  28
  29 config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
  30         bool
  31
  32 config ARCH_HAS_DMA_COHERENT_TO_PFN
  33         bool
  34
  35 config ARCH_HAS_DMA_MMAP_PGPROT
  36         bool
  37
  38 config DMA_DIRECT_OPS
  39         bool
  40         depends on HAS_DMA
  41
  42 config DMA_NONCOHERENT_CACHE_SYNC
  43         bool
  44         depends on DMA_DIRECT_OPS
  45
  46 config DMA_VIRT_OPS
  47         bool
  48         depends on HAS_DMA
  49
  50 config SWIOTLB
  51         bool
  52         select DMA_DIRECT_OPS
  53         select NEED_DMA_MAP_STATE