Current File : //usr/src/linux-headers-5.15.0-125-generic/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"
depends on HAS_IOMEM
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_INTEL_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 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
depends on HAS_IOMEM
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
depends on HAS_IOMEM
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 ARCH_HISI || 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"
depends on HAS_IOMEM
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_BUS
tristate
default INTEL_IDXD
config INTEL_IDXD
tristate "Intel Data Accelerators support"
depends on PCI && X86_64 && !UML
depends on PCI_MSI
depends on PCI_PASID
depends on SBITMAP
select DMA_ENGINE
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_IDXD_COMPAT
bool "Legacy behavior for idxd driver"
depends on PCI && X86_64
select INTEL_IDXD_BUS
help
Compatible driver to support old /sys/bus/dsa/drivers/dsa behavior.
The old behavior performed driver bind/unbind for device and wq
devices all under the dsa driver. The compat driver will emulate
the legacy behavior in order to allow existing support apps (i.e.
accel-config) to continue function. It is expected that accel-config
v3.2 and earlier will need the compat mode. A distro with later
accel-config version can disable this compat config.
Say Y if you have old applications that require such behavior.
If unsure, say N.
# Config symbol that collects all the dependencies that's necessary to
# support shared virtual memory for the devices supported by idxd.
config INTEL_IDXD_SVM
bool "Accelerator Shared Virtual Memory Support"
depends on INTEL_IDXD
depends on INTEL_IOMMU_SVM
depends on PCI_PRI
depends on PCI_PASID
depends on PCI_IOV
config INTEL_IDXD_PERFMON
bool "Intel Data Accelerators performance monitor support"
depends on INTEL_IDXD
help
Enable performance monitor (pmu) support for the Intel(R)
data accelerators present in Intel Xeon CPU. With this
enabled, perf can be used to monitor the DSA (Intel Data
Streaming Accelerator) events described in the Intel DSA
spec.
If unsure, say N.
config INTEL_IOATDMA
tristate "Intel I/OAT DMA support"
depends on PCI && X86_64 && !UML
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 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_MILBEAUT || COMPILE_TEST
depends on OF
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Say yes here to support the Socionext Milbeaut
XDMAC device.
config MMP_PDMA
tristate "MMP PDMA support"
depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST
select DMA_ENGINE
help
Support the MMP PDMA engine for PXA and MMP platform.
config MMP_TDMA
tristate "MMP Two-Channel DMA support"
depends on ARCH_MMP || COMPILE_TEST
select DMA_ENGINE
select GENERIC_ALLOCATOR
help
Support the MMP Two-Channel DMA engine.
This engine used for MMP Audio DMA and pxa910 SQU.
config MOXART_DMA
tristate "MOXART DMA support"
depends on ARCH_MOXART
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the MOXA ART SoC DMA controller.
Say Y here if you enabled MMP ADMA, otherwise say N.
config MPC512X_DMA
tristate "Freescale MPC512x built-in DMA engine support"
depends on PPC_MPC512x || PPC_MPC831x
select DMA_ENGINE
help
Enable support for the Freescale MPC512x built-in DMA engine.
config MV_XOR
bool "Marvell XOR engine support"
depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
select DMA_ENGINE
select DMA_ENGINE_RAID
select ASYNC_TX_ENABLE_CHANNEL_SWITCH
help
Enable support for the Marvell XOR engine.
config MV_XOR_V2
bool "Marvell XOR engine version 2 support "
depends on ARM64
select DMA_ENGINE
select DMA_ENGINE_RAID
select ASYNC_TX_ENABLE_CHANNEL_SWITCH
select GENERIC_MSI_IRQ_DOMAIN
help
Enable support for the Marvell version 2 XOR engine.
This engine provides acceleration for copy, XOR and RAID6
operations, and is available on Marvell Armada 7K and 8K
platforms.
config MXS_DMA
bool "MXS DMA support"
depends on ARCH_MXS || ARCH_MXC || COMPILE_TEST
select STMP_DEVICE
select DMA_ENGINE
help
Support the MXS DMA engine. This engine including APBH-DMA
and APBX-DMA is integrated into some Freescale chips.
config MX3_IPU
bool "MX3x Image Processing Unit support"
depends on ARCH_MXC
select DMA_ENGINE
default y
help
If you plan to use the Image Processing unit in the i.MX3x, say
Y here. If unsure, select Y.
config MX3_IPU_IRQS
int "Number of dynamically mapped interrupts for IPU"
depends on MX3_IPU
range 2 137
default 4
help
Out of 137 interrupt sources on i.MX31 IPU only very few are used.
To avoid bloating the irq_desc[] array we allocate a sufficient
number of IRQ slots and map them dynamically to specific sources.
config NBPFAXI_DMA
tristate "Renesas Type-AXI NBPF DMA support"
select DMA_ENGINE
depends on ARM || COMPILE_TEST
help
Support for "Type-AXI" NBPF DMA IPs from Renesas
config OWL_DMA
tristate "Actions Semi Owl SoCs DMA support"
depends on ARCH_ACTIONS
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the Actions Semi Owl SoCs DMA controller.
config PCH_DMA
tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
depends on PCI && (X86_32 || COMPILE_TEST)
select DMA_ENGINE
help
Enable support for Intel EG20T PCH DMA engine.
This driver also can be used for LAPIS Semiconductor IOH(Input/
Output Hub), ML7213, ML7223 and ML7831.
ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
for MP(Media Phone) use and ML7831 IOH is for general purpose use.
ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
config PL330_DMA
tristate "DMA API Driver for PL330"
select DMA_ENGINE
depends on ARM_AMBA
help
Select if your platform has one or more PL330 DMACs.
You need to provide platform specific settings via
platform_data for a dma-pl330 device.
config PXA_DMA
bool "PXA DMA support"
depends on (ARCH_MMP || ARCH_PXA)
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Support the DMA engine for PXA. It is also compatible with MMP PDMA
platform. The internal DMA IP of all PXA variants is supported, with
16 to 32 channels for peripheral to memory or memory to memory
transfers.
config PLX_DMA
tristate "PLX ExpressLane PEX Switch DMA Engine Support"
depends on PCI
select DMA_ENGINE
help
Some PLX ExpressLane PCI Switches support additional DMA engines.
These are exposed via extra functions on the switch's
upstream port. Each function exposes one DMA channel.
config STE_DMA40
bool "ST-Ericsson DMA40 support"
depends on ARCH_U8500
select DMA_ENGINE
help
Support for ST-Ericsson DMA40 controller
config ST_FDMA
tristate "ST FDMA dmaengine support"
depends on ARCH_STI
depends on REMOTEPROC
select ST_SLIM_REMOTEPROC
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for ST FDMA controller.
It supports 16 independent DMA channels, accepts up to 32 DMA requests
Say Y here if you have such a chipset.
If unsure, say N.
config STM32_DMA
bool "STMicroelectronics STM32 DMA support"
depends on ARCH_STM32 || COMPILE_TEST
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the on-chip DMA controller on STMicroelectronics
STM32 MCUs.
If you have a board based on such a MCU and wish to use DMA say Y
here.
config STM32_DMAMUX
bool "STMicroelectronics STM32 dma multiplexer support"
depends on STM32_DMA || COMPILE_TEST
help
Enable support for the on-chip DMA multiplexer on STMicroelectronics
STM32 MCUs.
If you have a board based on such a MCU and wish to use DMAMUX say Y
here.
config STM32_MDMA
bool "STMicroelectronics STM32 master dma support"
depends on ARCH_STM32 || COMPILE_TEST
depends on OF
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the on-chip MDMA controller on STMicroelectronics
STM32 platforms.
If you have a board based on STM32 SoC and wish to use the master DMA
say Y here.
config SPRD_DMA
tristate "Spreadtrum DMA support"
depends on ARCH_SPRD || COMPILE_TEST
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the on-chip DMA controller on Spreadtrum platform.
config S3C24XX_DMAC
bool "Samsung S3C24XX DMA support"
depends on ARCH_S3C24XX || COMPILE_TEST
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Support for the Samsung S3C24XX DMA controller driver. The
DMA controller is having multiple DMA channels which can be
configured for different peripherals like audio, UART, SPI.
The DMA controller can transfer data from memory to peripheral,
periphal to memory, periphal to periphal and memory to memory.
config TXX9_DMAC
tristate "Toshiba TXx9 SoC DMA support"
depends on MACH_TX49XX || MACH_TX39XX
select DMA_ENGINE
help
Support the TXx9 SoC internal DMA controller. This can be
integrated in chips such as the Toshiba TX4927/38/39.
config TEGRA20_APB_DMA
tristate "NVIDIA Tegra20 APB DMA support"
depends on ARCH_TEGRA || COMPILE_TEST
select DMA_ENGINE
help
Support for the NVIDIA Tegra20 APB DMA controller driver. The
DMA controller is having multiple DMA channel which can be
configured for different peripherals like audio, UART, SPI,
I2C etc which is in APB bus.
This DMA controller transfers data from memory to peripheral fifo
or vice versa. It does not support memory to memory data transfer.
config TEGRA210_ADMA
tristate "NVIDIA Tegra210 ADMA support"
depends on (ARCH_TEGRA || COMPILE_TEST)
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Support for the NVIDIA Tegra210/Tegra186/Tegra194/Tegra234 ADMA
controller driver. The DMA controller has multiple DMA channels
and is used to service various audio clients in the Tegra210
audio processing engine (APE). This DMA controller transfers
data from memory to peripheral and vice versa. It does not
support memory to memory data transfer.
config TIMB_DMA
tristate "Timberdale FPGA DMA support"
depends on MFD_TIMBERDALE || COMPILE_TEST
select DMA_ENGINE
help
Enable support for the Timberdale FPGA DMA engine.
config UNIPHIER_MDMAC
tristate "UniPhier MIO DMAC"
depends on ARCH_UNIPHIER || COMPILE_TEST
depends on OF
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the MIO DMAC (Media I/O DMA controller) on the
UniPhier platform. This DMA controller is used as the external
DMA engine of the SD/eMMC controllers of the LD4, Pro4, sLD8 SoCs.
config UNIPHIER_XDMAC
tristate "UniPhier XDMAC support"
depends on ARCH_UNIPHIER || COMPILE_TEST
depends on OF
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for the XDMAC (external DMA controller) on the
UniPhier platform. This DMA controller can transfer data from
memory to memory, memory to peripheral and peripheral to memory.
config XGENE_DMA
tristate "APM X-Gene DMA support"
depends on ARCH_XGENE || COMPILE_TEST
select DMA_ENGINE
select DMA_ENGINE_RAID
select ASYNC_TX_ENABLE_CHANNEL_SWITCH
help
Enable support for the APM X-Gene SoC DMA engine.
config XILINX_DMA
tristate "Xilinx AXI DMAS Engine"
depends on (ARCH_ZYNQ || MICROBLAZE || ARM64)
select DMA_ENGINE
help
Enable support for Xilinx AXI VDMA Soft IP.
AXI VDMA engine provides high-bandwidth direct memory access
between memory and AXI4-Stream video type target
peripherals including peripherals which support AXI4-
Stream Video Protocol. It has two stream interfaces/
channels, Memory Mapped to Stream (MM2S) and Stream to
Memory Mapped (S2MM) for the data transfers.
AXI CDMA engine provides high-bandwidth direct memory access
between a memory-mapped source address and a memory-mapped
destination address.
AXI DMA engine provides high-bandwidth one dimensional direct
memory access between memory and AXI4-Stream target peripherals.
AXI MCDMA engine provides high-bandwidth direct memory access
between memory and AXI4-Stream target peripherals. It provides
the scatter gather interface with multiple channels independent
configuration support.
config XILINX_ZYNQMP_DMA
tristate "Xilinx ZynqMP DMA Engine"
depends on (ARCH_ZYNQ || MICROBLAZE || ARM64)
select DMA_ENGINE
help
Enable support for Xilinx ZynqMP DMA controller.
config XILINX_ZYNQMP_DPDMA
tristate "Xilinx DPDMA Engine"
depends on HAS_IOMEM && OF
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
help
Enable support for Xilinx ZynqMP DisplayPort DMA. Choose this option
if you have a Xilinx ZynqMP SoC with a DisplayPort subsystem. The
driver provides the dmaengine required by the DisplayPort subsystem
display driver.
# driver files
source "drivers/dma/bestcomm/Kconfig"
source "drivers/dma/mediatek/Kconfig"
source "drivers/dma/ptdma/Kconfig"
source "drivers/dma/qcom/Kconfig"
source "drivers/dma/dw/Kconfig"
source "drivers/dma/dw-edma/Kconfig"
source "drivers/dma/hsu/Kconfig"
source "drivers/dma/sf-pdma/Kconfig"
source "drivers/dma/sh/Kconfig"
source "drivers/dma/ti/Kconfig"
source "drivers/dma/fsl-dpaa2-qdma/Kconfig"
source "drivers/dma/lgm/Kconfig"
# clients
comment "DMA Clients"
depends on DMA_ENGINE
config ASYNC_TX_DMA
bool "Async_tx: Offload support for the async_tx api"
depends on DMA_ENGINE
help
This allows the async_tx api to take advantage of offload engines for
memcpy, memset, xor, and raid6 p+q operations. If your platform has
a dma engine that can perform raid operations and you have enabled
MD_RAID456 say Y.
If unsure, say N.
config DMATEST
tristate "DMA Test client"
depends on DMA_ENGINE
select DMA_ENGINE_RAID
help
Simple DMA test client. Say N unless you're debugging a
DMA Device driver.
config DMA_ENGINE_RAID
bool
endif
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