path: root/drivers/dma/Kconfig

# SPDX-License-Identifier: GPL-2.0-only
#
# 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.

config AMBA_PL08X
	bool "ARM PrimeCell PL080 or PL081 support"
	depends on ARM_AMBA
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Say yes if your platform has a PL08x DMAC device which can
	  provide DMA engine support. This includes the original ARM
	  PL080 and PL081, Samsungs PL080 derivative and Faraday
	  Technology's FTDMAC020 PL080 derivative.

config AMCC_PPC440SPE_ADMA
	tristate "AMCC PPC440SPe ADMA support"
	depends on 440SPe || 440SP
	select DMA_ENGINE
	select DMA_ENGINE_RAID
	select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
	help
	  Enable support for the AMCC PPC440SPe RAID engines.

config AT_HDMAC
	tristate "Atmel AHB DMA support"
	depends on ARCH_AT91
	select DMA_ENGINE
	help
	  Support the Atmel AHB DMA controller.

config AT_XDMAC
	tristate "Atmel XDMA support"
	depends on ARCH_AT91
	select DMA_ENGINE
	help
	  Support the Atmel XDMA controller.

config AXI_DMAC
	tristate "Analog Devices AXI-DMAC DMA support"
	depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_SOCFPGA || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	select REGMAP_MMIO
	help
	  Enable support for the Analog Devices AXI-DMAC peripheral. This DMA
	  controller is often used in Analog Devices' reference designs for FPGA
	  platforms.

config BCM_SBA_RAID
	tristate "Broadcom SBA RAID engine support"
	depends on ARM64 || COMPILE_TEST
	depends on MAILBOX && RAID6_PQ
	select DMA_ENGINE
	select DMA_ENGINE_RAID
	select ASYNC_TX_DISABLE_XOR_VAL_DMA
	select ASYNC_TX_DISABLE_PQ_VAL_DMA
	default m if ARCH_BCM_IPROC
	help
	  Enable support for Broadcom SBA RAID Engine. The SBA RAID
	  engine is available on most of the Broadcom iProc SoCs. It
	  has the capability to offload memcpy, xor and pq computation
	  for raid5/6.

config COH901318
	bool "ST-Ericsson COH901318 DMA support"
	select DMA_ENGINE
	depends on ARCH_U300 || COMPILE_TEST
	help
	  Enable support for ST-Ericsson COH 901 318 DMA.

config DMA_BCM2835
	tristate "BCM2835 DMA engine support"
	depends on ARCH_BCM2835
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS

config DMA_JZ4780
	tristate "JZ4780 DMA support"
	depends on MIPS || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  This selects support for the DMA controller in Ingenic JZ4780 SoCs.
	  If you have a board based on such a SoC and wish to use DMA for
	  devices which can use the DMA controller, say Y or M here.

config DMA_SA11X0
	tristate "SA-11x0 DMA support"
	depends on ARCH_SA1100 || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support the DMA engine found on Intel StrongARM SA-1100 and
	  SA-1110 SoCs.  This DMA engine can only be used with on-chip
	  devices.

config DMA_SUN4I
	tristate "Allwinner A10 DMA SoCs support"
	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
	default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Enable support for the DMA controller present in the sun4i,
	  sun5i and sun7i Allwinner ARM SoCs.

config DMA_SUN6I
	tristate "Allwinner A31 SoCs DMA support"
	depends on MACH_SUN6I || MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST
	depends on RESET_CONTROLLER
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support for the DMA engine first found in Allwinner A31 SoCs.

config DW_AXI_DMAC
	tristate "Synopsys DesignWare AXI DMA support"
	depends on OF || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Enable support for Synopsys DesignWare AXI DMA controller.
	  NOTE: This driver wasn't tested on 64 bit platform because
	  of lack 64 bit platform with Synopsys DW AXI DMAC.

config EP93XX_DMA
	bool "Cirrus Logic EP93xx DMA support"
	depends on ARCH_EP93XX || COMPILE_TEST
	select DMA_ENGINE
	help
	  Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.

config FSL_DMA
	tristate "Freescale Elo series DMA support"
	depends on FSL_SOC
	select DMA_ENGINE
	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
	---help---
	  Enable support for the Freescale Elo series DMA controllers.
	  The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
	  EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
	  some Txxx and Bxxx parts.

config FSL_EDMA
	tristate "Freescale eDMA engine support"
	depends on OF
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support the Freescale eDMA engine with programmable channel
	  multiplexing capability for DMA request sources(slot).
	  This module can be found on Freescale Vybrid and LS-1 SoCs.

config FSL_QDMA
	tristate "NXP Layerscape qDMA engine support"
	depends on ARM || ARM64
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	select DMA_ENGINE_RAID
	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
	help
	 Support the NXP Layerscape qDMA engine with command queue and legacy mode.
	 Channel virtualization is supported through enqueuing of DMA jobs to,
	 or dequeuing DMA jobs from, different work queues.
	 This module can be found on NXP Layerscape SoCs.
	  The qdma driver only work on  SoCs with a DPAA hardware block.

config FSL_RAID
	tristate "Freescale RAID engine Support"
	depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH
	select DMA_ENGINE
	select DMA_ENGINE_RAID
	---help---
	  Enable support for Freescale RAID Engine. RAID Engine is
	  available on some QorIQ SoCs (like P5020/P5040). It has
	  the capability to offload memcpy, xor and pq computation
	  for raid5/6.

config HISI_DMA
	tristate "HiSilicon DMA Engine support"
	depends on ARM64 || COMPILE_TEST
	depends on PCI_MSI
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support HiSilicon Kunpeng DMA engine.

config IMG_MDC_DMA
	tristate "IMG MDC support"
	depends on MIPS || COMPILE_TEST
	depends on MFD_SYSCON
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Enable support for the IMG multi-threaded DMA controller (MDC).

config IMX_DMA
	tristate "i.MX DMA support"
	depends on ARCH_MXC
	select DMA_ENGINE
	help
	  Support the i.MX DMA engine. This engine is integrated into
	  Freescale i.MX1/21/27 chips.

config IMX_SDMA
	tristate "i.MX SDMA support"
	depends on ARCH_MXC
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support the i.MX SDMA engine. This engine is integrated into
	  Freescale i.MX25/31/35/51/53/6 chips.

config INTEL_IDMA64
	tristate "Intel integrated DMA 64-bit support"
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Enable DMA support for Intel Low Power Subsystem such as found on
	  Intel Skylake PCH.

config INTEL_IDXD
	tristate "Intel Data Accelerators support"
	depends on PCI && X86_64
	select DMA_ENGINE
	select SBITMAP
	help
	  Enable support for the Intel(R) data accelerators present
	  in Intel Xeon CPU.

	  Say Y if you have such a platform.

	  If unsure, say N.

config INTEL_IOATDMA
	tristate "Intel I/OAT DMA support"
	depends on PCI && X86_64
	select DMA_ENGINE
	select DMA_ENGINE_RAID
	select DCA
	help
	  Enable support for the Intel(R) I/OAT DMA engine present
	  in recent Intel Xeon chipsets.

	  Say Y here if you have such a chipset.

	  If unsure, say N.

config INTEL_IOP_ADMA
	tristate "Intel IOP32x ADMA support"
	depends on ARCH_IOP32X || COMPILE_TEST
	select DMA_ENGINE
	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
	help
	  Enable support for the Intel(R) IOP Series RAID engines.

config INTEL_MIC_X100_DMA
	tristate "Intel MIC X100 DMA Driver"
	depends on 64BIT && X86 && INTEL_MIC_BUS
	select DMA_ENGINE
	help
	  This enables DMA support for the Intel Many Integrated Core
	  (MIC) family of PCIe form factor coprocessor X100 devices that
	  run a 64 bit Linux OS. This driver will be used by both MIC
	  host and card drivers.

	  If you are building host kernel with a MIC device or a card
	  kernel for a MIC device, then say M (recommended) or Y, else
	  say N. If unsure say N.

	  More information about the Intel MIC family as well as the Linux
	  OS and tools for MIC to use with this driver are available from
	  <http://software.intel.com/en-us/mic-developer>.

config K3_DMA
	tristate "Hisilicon K3 DMA support"
	depends on ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support the DMA engine for Hisilicon K3 platform
	  devices.

config LPC18XX_DMAMUX
	bool "NXP LPC18xx/43xx DMA MUX for PL080"
	depends on ARCH_LPC18XX || COMPILE_TEST
	depends on OF && AMBA_PL08X
	select MFD_SYSCON
	help
	  Enable support for DMA on NXP LPC18xx/43xx platforms
	  with PL080 and multiplexed DMA request lines.

config MCF_EDMA
	tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs"
	depends on M5441x || COMPILE_TEST
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Support the Freescale ColdFire eDMA engine, 64-channel
	  implementation that performs complex data transfers with
	  minimal intervention from a host processor.
	  This module can be found on Freescale ColdFire mcf5441x SoCs.

config MILBEAUT_HDMAC
	tristate "Milbeaut AHB DMA support"
	depends on ARCH_MILBEAUT || COMPILE_TEST
	depends on OF
	select DMA_ENGINE
	select DMA_VIRTUAL_CHANNELS
	help
	  Say yes here to support the Socionext Milbeaut
	  HDMAC device.

config MILBEAUT_XDMAC
	tristate "Milbeaut AXI DMA support"
	depends on ARCH_MILB