# # 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" config INTEL_MID_DMAC tristate "Intel MID DMA support for Peripheral DMA controllers" depends on PCI && X86 select DMA_ENGINE default n help Enable support for the Intel(R) MID DMA engine present in Intel MID chipsets. Say Y here if you have such a chipset. If unsure, say N. config ASYNC_TX_ENABLE_CHANNEL_SWITCH bool 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 INTEL_IOATDMA tristate "Intel I/OAT DMA support" depends on PCI && X86 select DMA_ENGINE 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. source "drivers/dma/dw/Kconfig" config AT_HDMAC tristate "Atmel AHB DMA support" depends on ARCH_AT91 select DMA_ENGINE help Support the Atmel AHB DMA controller. config FSL_DMA tristate "Freescale Elo and Elo Plus DMA support" depends on FSL_SOC select DMA_ENGINE select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- Enable support for the Freescale Elo and Elo Plus DMA controllers. The Elo is the DMA controller on some 82xx and 83xx parts, and the Elo Plus is the DMA controller on 85xx and 86xx parts. 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. source "drivers/dma/bestcomm/Kconfig" config MV_XOR bool "Marvell XOR engine support" depends on PLAT_ORION select DMA_ENGINE select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- Enable support for the Marvell XOR engine. 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 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 S3C24XX_DMAC tristate "Samsung S3C24XX DMA support" depends on ARCH_S3C24XX && !S3C24XX_DMA 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. source "drivers/dma/sh/Kconfig" config COH901318 bool "ST-Ericsson COH901318 DMA support" select DMA_ENGINE depends on ARCH_U300 help Enable support for ST-Ericsson COH 901 318 DMA. config STE_DMA40 bool "ST-Ericsson DMA40 support" depends on ARCH_U8500 select DMA_ENGINE help Support for ST-Ericsson DMA40 controller config AMCC_PPC440SPE_ADMA tristate "AMCC PPC440SPe ADMA support" depends on 440SPe || 440SP select DMA_ENGINE select ARCH_HAS_ASYNC_TX_FIND_CHANNEL select ASYNC_TX_ENABLE_CHANNEL_SWITCH help Enable support for the AMCC PPC440SPe RAID engines. config TIMB_DMA tristate "Timberdale FPGA DMA support" depends on MFD_TIMBERDALE || HAS_IOMEM select DMA_ENGINE help Enable support for the Timberdale FPGA DMA engine. 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 TI_EDMA bool "TI EDMA support" depends on ARCH_DAVINCI || ARCH_OMAP select DMA_ENGINE select DMA_VIRTUAL_CHANNELS default n help Enable support for the TI EDMA controller. This DMA engine is found on TI DaVinci and AM33xx parts. config ARCH_HAS_ASYNC_TX_FIND_CHANNEL bool 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 PCH_DMA tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" depends on PCI && X86 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 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 chips. 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 MXS_DMA bool "MXS DMA support" depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q 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 chips. config EP93XX_DMA bool "Cirrus Logic EP93xx DMA support" depends on ARCH_EP93XX select DMA_ENGINE help Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. config DMA_SA11X0 tristate "SA-11x0 DMA support" depends on ARCH_SA1100 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 MMP_TDMA bool "MMP Two-Channel DMA support" depends on ARCH_MMP select DMA_ENGINE help Support the MMP Two-Channel DMA engine. This engine used for MMP Audio DMA and pxa910 SQU. Say Y here if you enabled MMP ADMA, otherwise say N. config DMA_OMAP tristate "OMAP DMA support" depends on ARCH_OMAP select DMA_ENGINE select DMA_VIRTUAL_CHANNELS 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 MMP_PDMA bool "MMP PDMA support" depends on (ARCH_MMP || ARCH_PXA) select DMA_ENGINE help Support the MMP PDMA engine for PXA and MMP platfrom. config DMA_JZ4740 tristate "JZ4740 DMA support" depends on MACH_JZ4740 select DMA_ENGINE select DMA_VIRTUAL_CHANNELS config K3_DMA tristate "Hisilicon K3 DMA support" depends on ARCH_HI3xxx select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help Support the DMA engine for Hisilicon K3 platform devices. 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 comment "DMA Clients" depends on DMA_ENGINE config NET_DMA bool "Network: TCP receive copy offload" depends on DMA_ENGINE && NET default (INTEL_IOATDMA || FSL_DMA) help This enables the use of DMA engines in the network stack to offload receive copy-to-user operations, freeing CPU cycles. Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise say N. 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. endif