drivers/dma/Kconfig

   1 #
   2 # DMA engine configuration
   3 #
   4
   5 menuconfig DMADEVICES
   6         bool "DMA Engine support"
   7         depends on !HIGHMEM64G && HAS_DMA
   8         help
   9           DMA engines can do asynchronous data transfers without
  10           involving the host CPU.  Currently, this framework can be
  11           used to offload memory copies in the network stack and
  12           RAID operations in the MD driver.  This menu only presents
  13           DMA Device drivers supported by the configured arch, it may
  14           be empty in some cases.
  15
  16 if DMADEVICES
  17
  18 comment "DMA Devices"
  19
  20 config INTEL_IOATDMA
  21         tristate "Intel I/OAT DMA support"
  22         depends on PCI && X86
  23         select DMA_ENGINE
  24         select DCA
  25         help
  26           Enable support for the Intel(R) I/OAT DMA engine present
  27           in recent Intel Xeon chipsets.
  28
  29           Say Y here if you have such a chipset.
  30
  31           If unsure, say N.
  32
  33 config INTEL_IOP_ADMA
  34         tristate "Intel IOP ADMA support"
  35         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  36         select ASYNC_CORE
  37         select DMA_ENGINE
  38         help
  39           Enable support for the Intel(R) IOP Series RAID engines.
  40
  41 config DW_DMAC
  42         tristate "Synopsys DesignWare AHB DMA support"
  43         depends on AVR32
  44         select DMA_ENGINE
  45         default y if CPU_AT32AP7000
  46         help
  47           Support the Synopsys DesignWare AHB DMA controller.  This
  48           can be integrated in chips such as the Atmel AT32ap7000.
  49
  50 config FSL_DMA
  51         tristate "Freescale Elo and Elo Plus DMA support"
  52         depends on FSL_SOC
  53         select DMA_ENGINE
  54         ---help---
  55           Enable support for the Freescale Elo and Elo Plus DMA controllers.
  56           The Elo is the DMA controller on some 82xx and 83xx parts, and the
  57           Elo Plus is the DMA controller on 85xx and 86xx parts.
  58
  59 config MV_XOR
  60         bool "Marvell XOR engine support"
  61         depends on PLAT_ORION
  62         select ASYNC_CORE
  63         select DMA_ENGINE
  64         ---help---
  65           Enable support for the Marvell XOR engine.
  66
  67 config DMA_ENGINE
  68         bool
  69
  70 comment "DMA Clients"
  71         depends on DMA_ENGINE
  72
  73 config NET_DMA
  74         bool "Network: TCP receive copy offload"
  75         depends on DMA_ENGINE && NET
  76         default (INTEL_IOATDMA || FSL_DMA)
  77         help
  78           This enables the use of DMA engines in the network stack to
  79           offload receive copy-to-user operations, freeing CPU cycles.
  80
  81           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
  82           say N.
  83
  84 config DMATEST
  85         tristate "DMA Test client"
  86         depends on DMA_ENGINE
  87         help
  88           Simple DMA test client. Say N unless you're debugging a
  89           DMA Device driver.
  90
  91 endif