# # 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 bool config DMA_ACPI def_bool y depends on ACPI config DMA_OF def_bool y depends on OF select DMA_ENGINE #devices config AMBA_PL08X bool "ARM PrimeCell PL080 or PL081 support" depends on ARM_AMBA select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Platform has a PL08x DMAC device which can provide DMA engine support 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_SOCFPGA || COMPILE_TEST select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Enable support for the Analog Devices AXI-DMAC peripheral. This DMA controller is often used in Analog Device's reference designs for FPGA platforms. 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_JZ4740 tristate "JZ4740 DMA support" depends on MACH_JZ4740 || COMPILE_TEST 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_OMAP tristate "OMAP DMA support" depends on ARCH_OMAP || COMPILE_TEST select DMA_ENGINE select DMA_VIRTUAL_CHANNELS select TI_DMA_CROSSBAR if (SOC_DRA7XX || COMPILE_TEST) 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 || 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 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_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 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 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_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 IOP ADMA support" depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX 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 . 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 MMP_PDMA bool "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 bool "MMP Two-Channel DMA support" depends on ARCH_MMP || COMPILE_TEST select DMA_ENGINE select MMP_SRAM if ARCH_MMP select GENERIC_ALLOCATOR help Support the MMP Two-Channel DMA engine. This engine used for MMP Audio DMA and pxa910 SQU. It needs sram driver under mach-mmp. 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 SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q || SOC_IMX6UL select STMP_DEVICE select DMA_ENGINE help Support the MXS DMA engine. This engine including APBH-DMA and APBX-DMA is integrated into Freescale i.MX23/28/MX6Q/MX6DL/MX6UL 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 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 SIRF_DMA tristate "CSR SiRFprimaII/SiRFmarco DMA support" depends on ARCH_SIRF select DMA_ENGINE help Enable support for the CSR SiRFprimaII DMA engine. config STE_DMA40 bool "ST-Ericsson DMA40 support" depends on ARCH_U8500 select DMA_ENGINE help Support for ST-Ericsson DMA40 controller 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 or M here. 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 bool "NVIDIA Tegra20 APB DMA support" depends on ARCH_TEGRA 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_210_SOC || ARCH_TEGRA_18x_SOC || COMPILE_TEST) && ARM_GIC_PM select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Support for the NVIDIA Tegra210 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 TI_CPPI41 tristate "AM33xx CPPI41 DMA support" depends on ARCH_OMAP select DMA_ENGINE help The Communications Port Programming Interface (CPPI) 4.1 DMA engine is currently used by the USB driver on AM335x platforms. config TI_DMA_CROSSBAR bool config TI_EDMA bool "TI EDMA support" depends on ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE || COMPILE_TEST select DMA_ENGINE select DMA_VIRTUAL_CHANNELS select TI_DMA_CROSSBAR if (ARCH_OMAP || COMPILE_TEST) default n help Enable support for the TI EDMA controller. This DMA engine is found on TI DaVinci and AM33xx parts. 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. 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 ZX_DMA tristate "ZTE ZX296702 DMA support" depends on ARCH_ZX || COMPILE_TEST select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Support the DMA engine for ZTE ZX296702 platform devices. # driver files source "drivers/dma/bestcomm/Kconfig" source "drivers/dma/qcom/Kconfig" source "drivers/dma/dw/Kconfig" source "drivers/dma/hsu/Kconfig" source "drivers/dma/sh/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 help Simple DMA test client. Say N unless you're debugging a DMA Device driver. config DMA_ENGINE_RAID bool endif