drivers/dma/Kconfig

   1 #
   2 # DMA engine configuration
   3 #
   4
   5 menuconfig DMADEVICES
   6         bool "DMA Engine support"
   7         depends on HAS_DMA
   8         help
   9           DMA engines can do asynchronous data transfers without
  10           involving the host CPU.  Currently, this framework can be
  11           used to offload memory copies in the network stack and
  12           RAID operations in the MD driver.  This menu only presents
  13           DMA Device drivers supported by the configured arch, it may
  14           be empty in some cases.
  15
  16 config DMADEVICES_DEBUG
  17         bool "DMA Engine debugging"
  18         depends on DMADEVICES != n
  19         help
  20           This is an option for use by developers; most people should
  21           say N here.  This enables DMA engine core and driver debugging.
  22
  23 config DMADEVICES_VDEBUG
  24         bool "DMA Engine verbose debugging"
  25         depends on DMADEVICES_DEBUG != n
  26         help
  27           This is an option for use by developers; most people should
  28           say N here.  This enables deeper (more verbose) debugging of
  29           the DMA engine core and drivers.
  30
  31
  32 if DMADEVICES
  33
  34 comment "DMA Devices"
  35
  36 #core
  37 config ASYNC_TX_ENABLE_CHANNEL_SWITCH
  38         bool
  39
  40 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
  41         bool
  42
  43 config DMA_ENGINE
  44         bool
  45
  46 config DMA_VIRTUAL_CHANNELS
  47         tristate
  48
  49 config DMA_ACPI
  50         def_bool y
  51         depends on ACPI
  52
  53 config DMA_OF
  54         def_bool y
  55         depends on OF
  56         select DMA_ENGINE
  57
  58 #devices
  59 config AMBA_PL08X
  60         bool "ARM PrimeCell PL080 or PL081 support"
  61         depends on ARM_AMBA
  62         select DMA_ENGINE
  63         select DMA_VIRTUAL_CHANNELS
  64         help
  65           Say yes if your platform has a PL08x DMAC device which can
  66           provide DMA engine support. This includes the original ARM
  67           PL080 and PL081, Samsungs PL080 derivative and Faraday
  68           Technology's FTDMAC020 PL080 derivative.
  69
  70 config AMCC_PPC440SPE_ADMA
  71         tristate "AMCC PPC440SPe ADMA support"
  72         depends on 440SPe || 440SP
  73         select DMA_ENGINE
  74         select DMA_ENGINE_RAID
  75         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
  76         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
  77         help
  78           Enable support for the AMCC PPC440SPe RAID engines.
  79
  80 config AT_HDMAC
  81         tristate "Atmel AHB DMA support"
  82         depends on ARCH_AT91
  83         select DMA_ENGINE
  84         help
  85           Support the Atmel AHB DMA controller.
  86
  87 config AT_XDMAC
  88         tristate "Atmel XDMA support"
  89         depends on ARCH_AT91
  90         select DMA_ENGINE
  91         help
  92           Support the Atmel XDMA controller.
  93
  94 config AXI_DMAC
  95         tristate "Analog Devices AXI-DMAC DMA support"
  96         depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_SOCFPGA || COMPILE_TEST
  97         select DMA_ENGINE
  98         select DMA_VIRTUAL_CHANNELS
  99         help
 100           Enable support for the Analog Devices AXI-DMAC peripheral. This DMA
 101           controller is often used in Analog Device's reference designs for FPGA
 102           platforms.
 103
 104 config BCM_SBA_RAID
 105         tristate "Broadcom SBA RAID engine support"
 106         depends on ARM64 || COMPILE_TEST
 107         depends on MAILBOX && RAID6_PQ
 108         select DMA_ENGINE
 109         select DMA_ENGINE_RAID
 110         select ASYNC_TX_DISABLE_XOR_VAL_DMA
 111         select ASYNC_TX_DISABLE_PQ_VAL_DMA
 112         default ARCH_BCM_IPROC
 113         help
 114           Enable support for Broadcom SBA RAID Engine. The SBA RAID
 115           engine is available on most of the Broadcom iProc SoCs. It
 116           has the capability to offload memcpy, xor and pq computation
 117           for raid5/6.
 118
 119 config COH901318
 120         bool "ST-Ericsson COH901318 DMA support"
 121         select DMA_ENGINE
 122         depends on ARCH_U300 || COMPILE_TEST
 123         help
 124           Enable support for ST-Ericsson COH 901 318 DMA.
 125
 126 config DMA_BCM2835
 127         tristate "BCM2835 DMA engine support"
 128         depends on ARCH_BCM2835
 129         select DMA_ENGINE
 130         select DMA_VIRTUAL_CHANNELS
 131
 132 config DMA_JZ4740
 133         tristate "JZ4740 DMA support"
 134         depends on MACH_JZ4740 || COMPILE_TEST
 135         select DMA_ENGINE
 136         select DMA_VIRTUAL_CHANNELS
 137
 138 config DMA_JZ4780
 139         tristate "JZ4780 DMA support"
 140         depends on MACH_JZ4780 || COMPILE_TEST
 141         select DMA_ENGINE
 142         select DMA_VIRTUAL_CHANNELS
 143         help
 144           This selects support for the DMA controller in Ingenic JZ4780 SoCs.
 145           If you have a board based on such a SoC and wish to use DMA for
 146           devices which can use the DMA controller, say Y or M here.
 147
 148 config DMA_OMAP
 149         tristate "OMAP DMA support"
 150         depends on ARCH_OMAP || COMPILE_TEST
 151         select DMA_ENGINE
 152         select DMA_VIRTUAL_CHANNELS
 153         select TI_DMA_CROSSBAR if (SOC_DRA7XX || COMPILE_TEST)
 154
 155 config DMA_SA11X0
 156         tristate "SA-11x0 DMA support"
 157         depends on ARCH_SA1100 || COMPILE_TEST
 158         select DMA_ENGINE
 159         select DMA_VIRTUAL_CHANNELS
 160         help
 161           Support the DMA engine found on Intel StrongARM SA-1100 and
 162           SA-1110 SoCs.  This DMA engine can only be used with on-chip
 163           devices.
 164
 165 config DMA_SUN4I
 166         tristate "Allwinner A10 DMA SoCs support"
 167         depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 168         default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
 169         select DMA_ENGINE
 170         select DMA_VIRTUAL_CHANNELS
 171         help
 172           Enable support for the DMA controller present in the sun4i,
 173           sun5i and sun7i Allwinner ARM SoCs.
 174
 175 config DMA_SUN6I
 176         tristate "Allwinner A31 SoCs DMA support"
 177         depends on MACH_SUN6I || MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST
 178         depends on RESET_CONTROLLER
 179         select DMA_ENGINE
 180         select DMA_VIRTUAL_CHANNELS
 181         help
 182           Support for the DMA engine first found in Allwinner A31 SoCs.
 183
 184 config EP93XX_DMA
 185         bool "Cirrus Logic EP93xx DMA support"
 186         depends on ARCH_EP93XX || COMPILE_TEST
 187         select DMA_ENGINE
 188         help
 189           Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
 190
 191 config FSL_DMA
 192         tristate "Freescale Elo series DMA support"
 193         depends on FSL_SOC
 194         select DMA_ENGINE
 195         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 196         ---help---
 197           Enable support for the Freescale Elo series DMA controllers.
 198           The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
 199           EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
 200           some Txxx and Bxxx parts.
 201
 202 config FSL_EDMA
 203         tristate "Freescale eDMA engine support"
 204         depends on OF
 205         select DMA_ENGINE
 206         select DMA_VIRTUAL_CHANNELS
 207         help
 208           Support the Freescale eDMA engine with programmable channel
 209           multiplexing capability for DMA request sources(slot).
 210           This module can be found on Freescale Vybrid and LS-1 SoCs.
 211
 212 config FSL_RAID
 213         tristate "Freescale RAID engine Support"
 214         depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH
 215         select DMA_ENGINE
 216         select DMA_ENGINE_RAID
 217         ---help---
 218           Enable support for Freescale RAID Engine. RAID Engine is
 219           available on some QorIQ SoCs (like P5020/P5040). It has
 220           the capability to offload memcpy, xor and pq computation
 221           for raid5/6.
 222
 223 config IMG_MDC_DMA
 224         tristate "IMG MDC support"
 225         depends on MIPS || COMPILE_TEST
 226         depends on MFD_SYSCON
 227         select DMA_ENGINE
 228         select DMA_VIRTUAL_CHANNELS
 229         help
 230           Enable support for the IMG multi-threaded DMA controller (MDC).
 231
 232 config IMX_DMA
 233         tristate "i.MX DMA support"
 234         depends on ARCH_MXC
 235         select DMA_ENGINE
 236         help
 237           Support the i.MX DMA engine. This engine is integrated into
 238           Freescale i.MX1/21/27 chips.
 239
 240 config IMX_SDMA
 241         tristate "i.MX SDMA support"
 242         depends on ARCH_MXC
 243         select DMA_ENGINE
 244         help
 245           Support the i.MX SDMA engine. This engine is integrated into
 246           Freescale i.MX25/31/35/51/53/6 chips.
 247
 248 config INTEL_IDMA64
 249         tristate "Intel integrated DMA 64-bit support"
 250         select DMA_ENGINE
 251         select DMA_VIRTUAL_CHANNELS
 252         help
 253           Enable DMA support for Intel Low Power Subsystem such as found on
 254           Intel Skylake PCH.
 255
 256 config INTEL_IOATDMA
 257         tristate "Intel I/OAT DMA support"
 258         depends on PCI && X86_64
 259         select DMA_ENGINE
 260         select DMA_ENGINE_RAID
 261         select DCA
 262         help
 263           Enable support for the Intel(R) I/OAT DMA engine present
 264           in recent Intel Xeon chipsets.
 265
 266           Say Y here if you have such a chipset.
 267
 268           If unsure, say N.
 269
 270 config INTEL_IOP_ADMA
 271         tristate "Intel IOP ADMA support"
 272         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
 273         select DMA_ENGINE
 274         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 275         help
 276           Enable support for the Intel(R) IOP Series RAID engines.
 277
 278 config INTEL_MIC_X100_DMA
 279         tristate "Intel MIC X100 DMA Driver"
 280         depends on 64BIT && X86 && INTEL_MIC_BUS
 281         select DMA_ENGINE
 282         help
 283           This enables DMA support for the Intel Many Integrated Core
 284           (MIC) family of PCIe form factor coprocessor X100 devices that
 285           run a 64 bit Linux OS. This driver will be used by both MIC
 286           host and card drivers.
 287
 288           If you are building host kernel with a MIC device or a card
 289           kernel for a MIC device, then say M (recommended) or Y, else
 290           say N. If unsure say N.
 291
 292           More information about the Intel MIC family as well as the Linux
 293           OS and tools for MIC to use with this driver are available from
 294           <http://software.intel.com/en-us/mic-developer>.
 295
 296 config K3_DMA
 297         tristate "Hisilicon K3 DMA support"
 298         depends on ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST
 299         select DMA_ENGINE
 300         select DMA_VIRTUAL_CHANNELS
 301         help
 302           Support the DMA engine for Hisilicon K3 platform
 303           devices.
 304
 305 config LPC18XX_DMAMUX
 306         bool "NXP LPC18xx/43xx DMA MUX for PL080"
 307         depends on ARCH_LPC18XX || COMPILE_TEST
 308         depends on OF && AMBA_PL08X
 309         select MFD_SYSCON
 310         help
 311           Enable support for DMA on NXP LPC18xx/43xx platforms
 312           with PL080 and multiplexed DMA request lines.
 313
 314 config MMP_PDMA
 315         bool "MMP PDMA support"
 316         depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST
 317         select DMA_ENGINE
 318         help
 319           Support the MMP PDMA engine for PXA and MMP platform.
 320
 321 config MMP_TDMA
 322         bool "MMP Two-Channel DMA support"
 323         depends on ARCH_MMP || COMPILE_TEST
 324         select DMA_ENGINE
 325         select MMP_SRAM if ARCH_MMP
 326         select GENERIC_ALLOCATOR
 327         help
 328           Support the MMP Two-Channel DMA engine.
 329           This engine used for MMP Audio DMA and pxa910 SQU.
 330           It needs sram driver under mach-mmp.
 331
 332 config MOXART_DMA
 333         tristate "MOXART DMA support"
 334         depends on ARCH_MOXART
 335         select DMA_ENGINE
 336         select DMA_VIRTUAL_CHANNELS
 337         help
 338           Enable support for the MOXA ART SoC DMA controller.
 339
 340           Say Y here if you enabled MMP ADMA, otherwise say N.
 341
 342 config MPC512X_DMA
 343         tristate "Freescale MPC512x built-in DMA engine support"
 344         depends on PPC_MPC512x || PPC_MPC831x
 345         select DMA_ENGINE
 346         ---help---
 347           Enable support for the Freescale MPC512x built-in DMA engine.
 348
 349 config MV_XOR
 350         bool "Marvell XOR engine support"
 351         depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
 352         select DMA_ENGINE
 353         select DMA_ENGINE_RAID
 354         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 355         ---help---
 356           Enable support for the Marvell XOR engine.
 357
 358 config MV_XOR_V2
 359         bool "Marvell XOR engine version 2 support "
 360         depends on ARM64
 361         select DMA_ENGINE
 362         select DMA_ENGINE_RAID
 363         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 364         select GENERIC_MSI_IRQ_DOMAIN
 365         ---help---
 366           Enable support for the Marvell version 2 XOR engine.
 367
 368           This engine provides acceleration for copy, XOR and RAID6
 369           operations, and is available on Marvell Armada 7K and 8K
 370           platforms.
 371
 372 config MXS_DMA
 373         bool "MXS DMA support"
 374         depends on ARCH_MXS || ARCH_MXC || COMPILE_TEST
 375         select STMP_DEVICE
 376         select DMA_ENGINE
 377         help
 378           Support the MXS DMA engine. This engine including APBH-DMA
 379           and APBX-DMA is integrated into some Freescale chips.
 380
 381 config MX3_IPU
 382         bool "MX3x Image Processing Unit support"
 383         depends on ARCH_MXC
 384         select DMA_ENGINE
 385         default y
 386         help
 387           If you plan to use the Image Processing unit in the i.MX3x, say
 388           Y here. If unsure, select Y.
 389
 390 config MX3_IPU_IRQS
 391         int "Number of dynamically mapped interrupts for IPU"
 392         depends on MX3_IPU
 393         range 2 137
 394         default 4
 395         help
 396           Out of 137 interrupt sources on i.MX31 IPU only very few are used.
 397           To avoid bloating the irq_desc[] array we allocate a sufficient
 398           number of IRQ slots and map them dynamically to specific sources.
 399
 400 config NBPFAXI_DMA
 401         tristate "Renesas Type-AXI NBPF DMA support"
 402         select DMA_ENGINE
 403         depends on ARM || COMPILE_TEST
 404         help
 405           Support for "Type-AXI" NBPF DMA IPs from Renesas
 406
 407 config PCH_DMA
 408         tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
 409         depends on PCI && (X86_32 || COMPILE_TEST)
 410         select DMA_ENGINE
 411         help
 412           Enable support for Intel EG20T PCH DMA engine.
 413
 414           This driver also can be used for LAPIS Semiconductor IOH(Input/
 415           Output Hub), ML7213, ML7223 and ML7831.
 416           ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
 417           for MP(Media Phone) use and ML7831 IOH is for general purpose use.
 418           ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 419           ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 420
 421 config PL330_DMA
 422         tristate "DMA API Driver for PL330"
 423         select DMA_ENGINE
 424         depends on ARM_AMBA
 425         help
 426           Select if your platform has one or more PL330 DMACs.
 427           You need to provide platform specific settings via
 428           platform_data for a dma-pl330 device.
 429
 430 config PXA_DMA
 431         bool "PXA DMA support"
 432         depends on (ARCH_MMP || ARCH_PXA)
 433         select DMA_ENGINE
 434         select DMA_VIRTUAL_CHANNELS
 435         help
 436           Support the DMA engine for PXA. It is also compatible with MMP PDMA
 437           platform. The internal DMA IP of all PXA variants is supported, with
 438           16 to 32 channels for peripheral to memory or memory to memory
 439           transfers.
 440
 441 config SIRF_DMA
 442         tristate "CSR SiRFprimaII/SiRFmarco DMA support"
 443         depends on ARCH_SIRF
 444         select DMA_ENGINE
 445         help
 446           Enable support for the CSR SiRFprimaII DMA engine.
 447
 448 config STE_DMA40
 449         bool "ST-Ericsson DMA40 support"
 450         depends on ARCH_U8500
 451         select DMA_ENGINE
 452         help
 453           Support for ST-Ericsson DMA40 controller
 454
 455 config ST_FDMA
 456         tristate "ST FDMA dmaengine support"
 457         depends on ARCH_STI
 458         depends on REMOTEPROC
 459         select ST_SLIM_REMOTEPROC
 460         select DMA_ENGINE
 461         select DMA_VIRTUAL_CHANNELS
 462         help
 463           Enable support for ST FDMA controller.
 464           It supports 16 independent DMA channels, accepts up to 32 DMA requests
 465
 466           Say Y here if you have such a chipset.
 467           If unsure, say N.
 468
 469 config STM32_DMA
 470         bool "STMicroelectronics STM32 DMA support"
 471         depends on ARCH_STM32 || COMPILE_TEST
 472         select DMA_ENGINE
 473         select DMA_VIRTUAL_CHANNELS
 474         help
 475           Enable support for the on-chip DMA controller on STMicroelectronics
 476           STM32 MCUs.
 477           If you have a board based on such a MCU and wish to use DMA say Y
 478           here.
 479
 480 config S3C24XX_DMAC
 481         bool "Samsung S3C24XX DMA support"
 482         depends on ARCH_S3C24XX || COMPILE_TEST
 483         select DMA_ENGINE
 484         select DMA_VIRTUAL_CHANNELS
 485         help
 486           Support for the Samsung S3C24XX DMA controller driver. The
 487           DMA controller is having multiple DMA channels which can be
 488           configured for different peripherals like audio, UART, SPI.
 489           The DMA controller can transfer data from memory to peripheral,
 490           periphal to memory, periphal to periphal and memory to memory.
 491
 492 config TXX9_DMAC
 493         tristate "Toshiba TXx9 SoC DMA support"
 494         depends on MACH_TX49XX || MACH_TX39XX
 495         select DMA_ENGINE
 496         help
 497           Support the TXx9 SoC internal DMA controller.  This can be
 498           integrated in chips such as the Toshiba TX4927/38/39.
 499
 500 config TEGRA20_APB_DMA
 501         bool "NVIDIA Tegra20 APB DMA support"
 502         depends on ARCH_TEGRA
 503         select DMA_ENGINE
 504         help
 505           Support for the NVIDIA Tegra20 APB DMA controller driver. The
 506           DMA controller is having multiple DMA channel which can be
 507           configured for different peripherals like audio, UART, SPI,
 508           I2C etc which is in APB bus.
 509           This DMA controller transfers data from memory to peripheral fifo
 510           or vice versa. It does not support memory to memory data transfer.
 511
 512 config TEGRA210_ADMA
 513         tristate "NVIDIA Tegra210 ADMA support"
 514         depends on (ARCH_TEGRA_210_SOC || COMPILE_TEST) && PM_CLK
 515         select DMA_ENGINE
 516         select DMA_VIRTUAL_CHANNELS
 517         help
 518           Support for the NVIDIA Tegra210 ADMA controller driver. The
 519           DMA controller has multiple DMA channels and is used to service
 520           various audio clients in the Tegra210 audio processing engine
 521           (APE). This DMA controller transfers data from memory to
 522           peripheral and vice versa. It does not support memory to
 523           memory data transfer.
 524
 525 config TIMB_DMA
 526         tristate "Timberdale FPGA DMA support"
 527         depends on MFD_TIMBERDALE || COMPILE_TEST
 528         select DMA_ENGINE
 529         help
 530           Enable support for the Timberdale FPGA DMA engine.
 531
 532 config TI_CPPI41
 533         tristate "CPPI 4.1 DMA support"
 534         depends on (ARCH_OMAP || ARCH_DAVINCI_DA8XX)
 535         select DMA_ENGINE
 536         help
 537           The Communications Port Programming Interface (CPPI) 4.1 DMA engine
 538           is currently used by the USB driver on AM335x and DA8xx platforms.
 539
 540 config TI_DMA_CROSSBAR
 541         bool
 542
 543 config TI_EDMA
 544         bool "TI EDMA support"
 545         depends on ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE || COMPILE_TEST
 546         select DMA_ENGINE
 547         select DMA_VIRTUAL_CHANNELS
 548         select TI_DMA_CROSSBAR if (ARCH_OMAP || COMPILE_TEST)
 549         default n
 550         help
 551           Enable support for the TI EDMA controller. This DMA
 552           engine is found on TI DaVinci and AM33xx parts.
 553
 554 config XGENE_DMA
 555         tristate "APM X-Gene DMA support"
 556         depends on ARCH_XGENE || COMPILE_TEST
 557         select DMA_ENGINE
 558         select DMA_ENGINE_RAID
 559         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 560         help
 561           Enable support for the APM X-Gene SoC DMA engine.
 562
 563 config XILINX_DMA
 564         tristate "Xilinx AXI DMAS Engine"
 565         depends on (ARCH_ZYNQ || MICROBLAZE || ARM64)
 566         select DMA_ENGINE
 567         help
 568           Enable support for Xilinx AXI VDMA Soft IP.
 569
 570           AXI VDMA engine provides high-bandwidth direct memory access
 571           between memory and AXI4-Stream video type target
 572           peripherals including peripherals which support AXI4-
 573           Stream Video Protocol.  It has two stream interfaces/
 574           channels, Memory Mapped to Stream (MM2S) and Stream to
 575           Memory Mapped (S2MM) for the data transfers.
 576           AXI CDMA engine provides high-bandwidth direct memory access
 577           between a memory-mapped source address and a memory-mapped
 578           destination address.
 579           AXI DMA engine provides high-bandwidth one dimensional direct
 580           memory access between memory and AXI4-Stream target peripherals.
 581
 582 config XILINX_ZYNQMP_DMA
 583         tristate "Xilinx ZynqMP DMA Engine"
 584         depends on (ARCH_ZYNQ || MICROBLAZE || ARM64)
 585         select DMA_ENGINE
 586         help
 587           Enable support for Xilinx ZynqMP DMA controller.
 588
 589 config ZX_DMA
 590         tristate "ZTE ZX DMA support"
 591         depends on ARCH_ZX || COMPILE_TEST
 592         select DMA_ENGINE
 593         select DMA_VIRTUAL_CHANNELS
 594         help
 595           Support the DMA engine for ZTE ZX family platform devices.
 596
 597
 598 # driver files
 599 source "drivers/dma/bestcomm/Kconfig"
 600
 601 source "drivers/dma/qcom/Kconfig"
 602
 603 source "drivers/dma/dw/Kconfig"
 604
 605 source "drivers/dma/hsu/Kconfig"
 606
 607 source "drivers/dma/sh/Kconfig"
 608
 609 # clients
 610 comment "DMA Clients"
 611         depends on DMA_ENGINE
 612
 613 config ASYNC_TX_DMA
 614         bool "Async_tx: Offload support for the async_tx api"
 615         depends on DMA_ENGINE
 616         help
 617           This allows the async_tx api to take advantage of offload engines for
 618           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 619           a dma engine that can perform raid operations and you have enabled
 620           MD_RAID456 say Y.
 621
 622           If unsure, say N.
 623
 624 config DMATEST
 625         tristate "DMA Test client"
 626         depends on DMA_ENGINE
 627         select DMA_ENGINE_RAID
 628         help
 629           Simple DMA test client. Say N unless you're debugging a
 630           DMA Device driver.
 631
 632 config DMA_ENGINE_RAID
 633         bool
 634
 635 endif