linux-imx

#

# DMA engine configuration

#

​

menuconfig DMADEVICES

    bool "DMA Engine support"

    depends on HAS_DMA

    help

      DMA engines can do asynchronous data transfers without

      involving the host CPU.  Currently, this framework can be

      used to offload memory copies in the network stack and

      RAID operations in the MD driver.  This menu only presents

      DMA Device drivers supported by the configured arch, it may

      be empty in some cases.

​

config DMADEVICES_DEBUG

        bool "DMA Engine debugging"

        depends on DMADEVICES != n

        help

          This is an option for use by developers; most people should

          say N here.  This enables DMA engine core and driver debugging.

​

config DMADEVICES_VDEBUG

        bool "DMA Engine verbose debugging"

        depends on DMADEVICES_DEBUG != n

        help

          This is an option for use by developers; most people should

          say N here.  This enables deeper (more verbose) debugging of

          the DMA engine core and drivers.

​

​

if DMADEVICES

​

comment "DMA Devices"

​

#core

config ASYNC_TX_ENABLE_CHANNEL_SWITCH

    bool

​

config ARCH_HAS_ASYNC_TX_FIND_CHANNEL

    bool

​

config DMA_ENGINE

    bool

​

config DMA_VIRTUAL_CHANNELS

    tristate

​

config DMA_ACPI

    def_bool y

    depends on ACPI

​

config DMA_OF

    def_bool y

    depends on OF

    select DMA_ENGINE

​

#devices

config ALTERA_MSGDMA

    tristate "Altera / Intel mSGDMA Engine"

    select DMA_ENGINE

    help

      Enable support for Altera / Intel mSGDMA controller.