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![Linus Torvalds](/assets/img/avatar_default.png)
This time we have aded a new capability for scatter-gathered memset using dmaengine APIs. This is supported in xdmac & hdmac drivers We have added support for reusing descriptors for examples like video buffers etc. Driver will follow The behaviour of descriptor ack has been clarified and documented New devices added are: - dma controller in sun[457]i SoCs - lpc18xx dmamux - ZTE ZX296702 dma controller - Analog Devices AXI-DMAC DMA controller - eDMA support for dma-crossbar - imx6sx support in imx-sdma driver - imx-sdma device to device support Others - jz4780 fixes - ioatdma large refactor and cleanup for removal of ioat v1 and v2 which is deprecated and fixes - ACPI support in X-Gene DMA engine driver - ipu irq fixes - mvxor fixes - minor fixes spread thru drivers -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJV5+nSAAoJEHwUBw8lI4NHiXQQAI/++7PmUGZ6BDZGu0B9Bj7U JalNijm43p858nka1zVhDea8pi7Cq3zJdE8EAB7FPQGESvCODWr62oZBr+mSaQ1C oU1RTIRTSiU2HPE4EFeGUvVGrnmTbHR2b1apI1SU41gKn+oQ5RJRRoQwEVwO6uuZ 1VYcUqhurIAZs1FrMIAUa2vg7KTcK9UotfwR2gGBmSvXMf1aJ/dNZC7i/pBJjoyt v6KrLuYjEBAJvY7l368+NhLY/MS+2xdCMQo84B+HNEG7eA7y2MFOcRPXQA3a7dzr NwNuAZcTYDU11r2jiAPcnBM5sPo4bokX6Td0oDbYH6Rn2uIWlof7jGIceUaWLQQq QGZc4QPI4KdjTGNedRN8g9zqv0irFVfDr5v1A+B7N7ehvlubnB4jV8LmLpqN6UQH B38VnDJ3hqdZ6j9RHQTyUoQskSYMPbOAUYbL0qQLkyx8AnLc8TRv7DgtSvZjnz5W oF6So2A5SWZ7UmXKupd6TKtdyG3xtFAh+/MGVQ1RS9bCmnyhaIxJRiJwfftCBTBx IZePOsqlwl2dojM62BDlGS4CLRZve2VgiUEJaPINsdm/On3tQs9+iDbNY3cpvLQS P9u4po1TQPZnKG732vPAxEqdlq709kta7Fj5KIEvNjuWBBGKfypNP8BHKRvTLFlR kcbO03NzwSO6PZpmiUsx =gQZ6 -----END PGP SIGNATURE----- Merge tag 'dmaengine-4.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine updates from Vinod Koul: "This time we have aded a new capability for scatter-gathered memset using dmaengine APIs. This is supported in xdmac & hdmac drivers We have added support for reusing descriptors for examples like video buffers etc. Driver will follow The behaviour of descriptor ack has been clarified and documented New devices added are: - dma controller in sun[457]i SoCs - lpc18xx dmamux - ZTE ZX296702 dma controller - Analog Devices AXI-DMAC DMA controller - eDMA support for dma-crossbar - imx6sx support in imx-sdma driver - imx-sdma device to device support Other: - jz4780 fixes - ioatdma large refactor and cleanup for removal of ioat v1 and v2 which is deprecated and fixes - ACPI support in X-Gene DMA engine driver - ipu irq fixes - mvxor fixes - minor fixes spread thru drivers" [ The Kconfig and Makefile entries got re-sorted alphabetically, and I handled the conflict with the new Intel integrated IDMA driver by slightly mis-sorting it on purpose: "IDMA64" got sorted after "IMX" in order to keep the Intel entries together. I think it might be a good idea to just rename the IDMA64 config entry to INTEL_IDMA64 to make the sorting be a true sort, not this mismash. Also, this merge disables the COMPILE_TEST for the sun4i DMA controller, because it does not compile cleanly at all. - Linus ] * tag 'dmaengine-4.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (89 commits) dmaengine: ioatdma: add Broadwell EP ioatdma PCI dev IDs dmaengine :ipu: change ipu_irq_handler() to remove compile warning dmaengine: ioatdma: Fix variable array length dmaengine: ioatdma: fix sparse "error" with prep lock dmaengine: hdmac: Add memset capabilities dmaengine: sort the sh Makefile dmaengine: sort the sh Kconfig dmaengine: sort the dw Kconfig dmaengine: sort the Kconfig dmaengine: sort the makefile drivers/dma: make mv_xor.c driver explicitly non-modular dmaengine: Add support for the Analog Devices AXI-DMAC DMA controller devicetree: Add bindings documentation for Analog Devices AXI-DMAC dmaengine: xgene-dma: Fix the lock to allow client for further submission of requests dmaengine: ioatdma: fix coccinelle warning dmaengine: ioatdma: fix zero day warning on incompatible pointer type dmaengine: tegra-apb: Simplify locking for device using global pause dmaengine: tegra-apb: Remove unnecessary return statements and variables dmaengine: tegra-apb: Avoid unnecessary channel base address calculation dmaengine: tegra-apb: Remove unused variables ...
561 lines
15 KiB
Text
561 lines
15 KiB
Text
#
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# DMA engine configuration
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#
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menuconfig DMADEVICES
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bool "DMA Engine support"
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depends on HAS_DMA
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help
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DMA engines can do asynchronous data transfers without
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involving the host CPU. Currently, this framework can be
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used to offload memory copies in the network stack and
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RAID operations in the MD driver. This menu only presents
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DMA Device drivers supported by the configured arch, it may
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be empty in some cases.
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config DMADEVICES_DEBUG
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bool "DMA Engine debugging"
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depends on DMADEVICES != n
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help
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This is an option for use by developers; most people should
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say N here. This enables DMA engine core and driver debugging.
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config DMADEVICES_VDEBUG
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bool "DMA Engine verbose debugging"
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depends on DMADEVICES_DEBUG != n
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help
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This is an option for use by developers; most people should
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say N here. This enables deeper (more verbose) debugging of
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the DMA engine core and drivers.
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if DMADEVICES
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comment "DMA Devices"
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#core
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config ASYNC_TX_ENABLE_CHANNEL_SWITCH
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bool
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config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
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bool
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config DMA_ENGINE
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bool
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config DMA_VIRTUAL_CHANNELS
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tristate
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config DMA_ACPI
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def_bool y
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depends on ACPI
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config DMA_OF
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def_bool y
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depends on OF
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select DMA_ENGINE
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#devices
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config AMBA_PL08X
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bool "ARM PrimeCell PL080 or PL081 support"
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depends on ARM_AMBA
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Platform has a PL08x DMAC device
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which can provide DMA engine support
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config AMCC_PPC440SPE_ADMA
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tristate "AMCC PPC440SPe ADMA support"
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depends on 440SPe || 440SP
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select DMA_ENGINE
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select DMA_ENGINE_RAID
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select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
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select ASYNC_TX_ENABLE_CHANNEL_SWITCH
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help
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Enable support for the AMCC PPC440SPe RAID engines.
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config AT_HDMAC
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tristate "Atmel AHB DMA support"
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depends on ARCH_AT91
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select DMA_ENGINE
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help
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Support the Atmel AHB DMA controller.
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config AT_XDMAC
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tristate "Atmel XDMA support"
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depends on ARCH_AT91
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select DMA_ENGINE
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help
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Support the Atmel XDMA controller.
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config AXI_DMAC
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tristate "Analog Devices AXI-DMAC DMA support"
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depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_SOCFPGA || COMPILE_TEST
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Enable support for the Analog Devices AXI-DMAC peripheral. This DMA
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controller is often used in Analog Device's reference designs for FPGA
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platforms.
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config COH901318
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bool "ST-Ericsson COH901318 DMA support"
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select DMA_ENGINE
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depends on ARCH_U300
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help
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Enable support for ST-Ericsson COH 901 318 DMA.
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config DMA_BCM2835
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tristate "BCM2835 DMA engine support"
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depends on ARCH_BCM2835
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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config DMA_JZ4740
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tristate "JZ4740 DMA support"
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depends on MACH_JZ4740
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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config DMA_JZ4780
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tristate "JZ4780 DMA support"
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depends on MACH_JZ4780
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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This selects support for the DMA controller in Ingenic JZ4780 SoCs.
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If you have a board based on such a SoC and wish to use DMA for
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devices which can use the DMA controller, say Y or M here.
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config DMA_OMAP
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tristate "OMAP DMA support"
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depends on ARCH_OMAP
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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select TI_DMA_CROSSBAR if SOC_DRA7XX
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config DMA_SA11X0
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tristate "SA-11x0 DMA support"
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depends on ARCH_SA1100
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Support the DMA engine found on Intel StrongARM SA-1100 and
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SA-1110 SoCs. This DMA engine can only be used with on-chip
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devices.
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config DMA_SUN4I
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tristate "Allwinner A10 DMA SoCs support"
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depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
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default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
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select DMA_ENGINE
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select DMA_OF
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select DMA_VIRTUAL_CHANNELS
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help
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Enable support for the DMA controller present in the sun4i,
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sun5i and sun7i Allwinner ARM SoCs.
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config DMA_SUN6I
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tristate "Allwinner A31 SoCs DMA support"
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depends on MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
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depends on RESET_CONTROLLER
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Support for the DMA engine first found in Allwinner A31 SoCs.
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config EP93XX_DMA
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bool "Cirrus Logic EP93xx DMA support"
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depends on ARCH_EP93XX
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select DMA_ENGINE
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help
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Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
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config FSL_DMA
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tristate "Freescale Elo series DMA support"
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depends on FSL_SOC
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select DMA_ENGINE
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select ASYNC_TX_ENABLE_CHANNEL_SWITCH
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---help---
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Enable support for the Freescale Elo series DMA controllers.
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The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
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EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
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some Txxx and Bxxx parts.
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config FSL_EDMA
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tristate "Freescale eDMA engine support"
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depends on OF
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Support the Freescale eDMA engine with programmable channel
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multiplexing capability for DMA request sources(slot).
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This module can be found on Freescale Vybrid and LS-1 SoCs.
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config FSL_RAID
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tristate "Freescale RAID engine Support"
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depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH
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select DMA_ENGINE
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select DMA_ENGINE_RAID
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---help---
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Enable support for Freescale RAID Engine. RAID Engine is
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available on some QorIQ SoCs (like P5020/P5040). It has
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the capability to offload memcpy, xor and pq computation
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for raid5/6.
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config IMG_MDC_DMA
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tristate "IMG MDC support"
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depends on MIPS || COMPILE_TEST
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depends on MFD_SYSCON
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Enable support for the IMG multi-threaded DMA controller (MDC).
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config IMX_DMA
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tristate "i.MX DMA support"
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depends on ARCH_MXC
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select DMA_ENGINE
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help
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Support the i.MX DMA engine. This engine is integrated into
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Freescale i.MX1/21/27 chips.
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config IMX_SDMA
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tristate "i.MX SDMA support"
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depends on ARCH_MXC
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select DMA_ENGINE
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help
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Support the i.MX SDMA engine. This engine is integrated into
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Freescale i.MX25/31/35/51/53/6 chips.
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config IDMA64
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tristate "Intel integrated DMA 64-bit support"
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Enable DMA support for Intel Low Power Subsystem such as found on
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Intel Skylake PCH.
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config INTEL_IOATDMA
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tristate "Intel I/OAT DMA support"
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depends on PCI && X86_64
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select DMA_ENGINE
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select DMA_ENGINE_RAID
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select DCA
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help
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Enable support for the Intel(R) I/OAT DMA engine present
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in recent Intel Xeon chipsets.
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Say Y here if you have such a chipset.
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If unsure, say N.
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config INTEL_IOP_ADMA
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tristate "Intel IOP ADMA support"
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depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
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select DMA_ENGINE
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select ASYNC_TX_ENABLE_CHANNEL_SWITCH
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help
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Enable support for the Intel(R) IOP Series RAID engines.
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config INTEL_MIC_X100_DMA
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tristate "Intel MIC X100 DMA Driver"
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depends on 64BIT && X86 && INTEL_MIC_BUS
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select DMA_ENGINE
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help
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This enables DMA support for the Intel Many Integrated Core
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(MIC) family of PCIe form factor coprocessor X100 devices that
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run a 64 bit Linux OS. This driver will be used by both MIC
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host and card drivers.
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If you are building host kernel with a MIC device or a card
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kernel for a MIC device, then say M (recommended) or Y, else
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say N. If unsure say N.
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More information about the Intel MIC family as well as the Linux
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OS and tools for MIC to use with this driver are available from
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<http://software.intel.com/en-us/mic-developer>.
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config K3_DMA
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tristate "Hisilicon K3 DMA support"
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depends on ARCH_HI3xxx
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Support the DMA engine for Hisilicon K3 platform
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devices.
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config LPC18XX_DMAMUX
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bool "NXP LPC18xx/43xx DMA MUX for PL080"
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depends on ARCH_LPC18XX || COMPILE_TEST
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depends on OF && AMBA_PL08X
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select MFD_SYSCON
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help
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Enable support for DMA on NXP LPC18xx/43xx platforms
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with PL080 and multiplexed DMA request lines.
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config MMP_PDMA
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bool "MMP PDMA support"
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depends on (ARCH_MMP || ARCH_PXA)
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select DMA_ENGINE
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help
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Support the MMP PDMA engine for PXA and MMP platform.
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config MMP_TDMA
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bool "MMP Two-Channel DMA support"
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depends on ARCH_MMP
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select DMA_ENGINE
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select MMP_SRAM
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help
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Support the MMP Two-Channel DMA engine.
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This engine used for MMP Audio DMA and pxa910 SQU.
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It needs sram driver under mach-mmp.
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config MOXART_DMA
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tristate "MOXART DMA support"
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depends on ARCH_MOXART
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select DMA_ENGINE
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select DMA_OF
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select DMA_VIRTUAL_CHANNELS
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help
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Enable support for the MOXA ART SoC DMA controller.
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Say Y here if you enabled MMP ADMA, otherwise say N.
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config MPC512X_DMA
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tristate "Freescale MPC512x built-in DMA engine support"
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depends on PPC_MPC512x || PPC_MPC831x
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select DMA_ENGINE
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---help---
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Enable support for the Freescale MPC512x built-in DMA engine.
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config MV_XOR
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bool "Marvell XOR engine support"
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depends on PLAT_ORION
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select DMA_ENGINE
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select DMA_ENGINE_RAID
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select ASYNC_TX_ENABLE_CHANNEL_SWITCH
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---help---
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Enable support for the Marvell XOR engine.
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config MXS_DMA
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bool "MXS DMA support"
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depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q
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select STMP_DEVICE
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select DMA_ENGINE
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help
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Support the MXS DMA engine. This engine including APBH-DMA
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and APBX-DMA is integrated into Freescale i.MX23/28/MX6Q/MX6DL chips.
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config MX3_IPU
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bool "MX3x Image Processing Unit support"
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depends on ARCH_MXC
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select DMA_ENGINE
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default y
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help
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If you plan to use the Image Processing unit in the i.MX3x, say
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Y here. If unsure, select Y.
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config MX3_IPU_IRQS
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int "Number of dynamically mapped interrupts for IPU"
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depends on MX3_IPU
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range 2 137
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default 4
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help
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Out of 137 interrupt sources on i.MX31 IPU only very few are used.
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To avoid bloating the irq_desc[] array we allocate a sufficient
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number of IRQ slots and map them dynamically to specific sources.
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config NBPFAXI_DMA
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tristate "Renesas Type-AXI NBPF DMA support"
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select DMA_ENGINE
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depends on ARM || COMPILE_TEST
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help
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Support for "Type-AXI" NBPF DMA IPs from Renesas
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config PCH_DMA
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tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
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depends on PCI && (X86_32 || COMPILE_TEST)
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select DMA_ENGINE
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help
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Enable support for Intel EG20T PCH DMA engine.
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This driver also can be used for LAPIS Semiconductor IOH(Input/
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Output Hub), ML7213, ML7223 and ML7831.
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ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
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for MP(Media Phone) use and ML7831 IOH is for general purpose use.
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ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
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ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
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config PL330_DMA
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tristate "DMA API Driver for PL330"
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select DMA_ENGINE
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depends on ARM_AMBA
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help
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Select if your platform has one or more PL330 DMACs.
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You need to provide platform specific settings via
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platform_data for a dma-pl330 device.
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config PXA_DMA
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bool "PXA DMA support"
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depends on (ARCH_MMP || ARCH_PXA)
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Support the DMA engine for PXA. It is also compatible with MMP PDMA
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platform. The internal DMA IP of all PXA variants is supported, with
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16 to 32 channels for peripheral to memory or memory to memory
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transfers.
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config QCOM_BAM_DMA
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tristate "QCOM BAM DMA support"
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depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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---help---
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Enable support for the QCOM BAM DMA controller. This controller
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provides DMA capabilities for a variety of on-chip devices.
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config SIRF_DMA
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tristate "CSR SiRFprimaII/SiRFmarco DMA support"
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depends on ARCH_SIRF
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select DMA_ENGINE
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help
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Enable support for the CSR SiRFprimaII DMA engine.
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config STE_DMA40
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bool "ST-Ericsson DMA40 support"
|
|
depends on ARCH_U8500
|
|
select DMA_ENGINE
|
|
help
|
|
Support for ST-Ericsson DMA40 controller
|
|
|
|
config S3C24XX_DMAC
|
|
tristate "Samsung S3C24XX DMA support"
|
|
depends on ARCH_S3C24XX
|
|
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 TIMB_DMA
|
|
tristate "Timberdale FPGA DMA support"
|
|
depends on MFD_TIMBERDALE
|
|
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
|
|
select DMA_ENGINE
|
|
select DMA_VIRTUAL_CHANNELS
|
|
select TI_PRIV_EDMA
|
|
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_VDMA
|
|
tristate "Xilinx AXI VDMA Engine"
|
|
depends on (ARCH_ZYNQ || MICROBLAZE)
|
|
select DMA_ENGINE
|
|
help
|
|
Enable support for Xilinx AXI VDMA Soft IP.
|
|
|
|
This 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.
|
|
|
|
config ZX_DMA
|
|
tristate "ZTE ZX296702 DMA support"
|
|
depends on ARCH_ZX
|
|
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/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
|