1# SPDX-License-Identifier: GPL-2.0-only 2# 3# DMA engine configuration 4# 5 6menuconfig DMADEVICES 7 bool "DMA Engine support" 8 depends on HAS_DMA 9 help 10 DMA engines can do asynchronous data transfers without 11 involving the host CPU. Currently, this framework can be 12 used to offload memory copies in the network stack and 13 RAID operations in the MD driver. This menu only presents 14 DMA Device drivers supported by the configured arch, it may 15 be empty in some cases. 16 17config DMADEVICES_DEBUG 18 bool "DMA Engine debugging" 19 depends on DMADEVICES != n 20 help 21 This is an option for use by developers; most people should 22 say N here. This enables DMA engine core and driver debugging. 23 24config DMADEVICES_VDEBUG 25 bool "DMA Engine verbose debugging" 26 depends on DMADEVICES_DEBUG != n 27 help 28 This is an option for use by developers; most people should 29 say N here. This enables deeper (more verbose) debugging of 30 the DMA engine core and drivers. 31 32 33if DMADEVICES 34 35comment "DMA Devices" 36 37#core 38config ASYNC_TX_ENABLE_CHANNEL_SWITCH 39 bool 40 41config ARCH_HAS_ASYNC_TX_FIND_CHANNEL 42 bool 43 44config DMA_ENGINE 45 bool 46 47config DMA_VIRTUAL_CHANNELS 48 tristate 49 50config DMA_ACPI 51 def_bool y 52 depends on ACPI 53 54config DMA_OF 55 def_bool y 56 depends on OF 57 select DMA_ENGINE 58 59#devices 60config ALTERA_MSGDMA 61 tristate "Altera / Intel mSGDMA Engine" 62 depends on HAS_IOMEM 63 select DMA_ENGINE 64 help 65 Enable support for Altera / Intel mSGDMA controller. 66 67config AMBA_PL08X 68 bool "ARM PrimeCell PL080 or PL081 support" 69 depends on ARM_AMBA 70 select DMA_ENGINE 71 select DMA_VIRTUAL_CHANNELS 72 help 73 Say yes if your platform has a PL08x DMAC device which can 74 provide DMA engine support. This includes the original ARM 75 PL080 and PL081, Samsungs PL080 derivative and Faraday 76 Technology's FTDMAC020 PL080 derivative. 77 78config AMCC_PPC440SPE_ADMA 79 tristate "AMCC PPC440SPe ADMA support" 80 depends on 440SPe || 440SP 81 select DMA_ENGINE 82 select DMA_ENGINE_RAID 83 select ARCH_HAS_ASYNC_TX_FIND_CHANNEL 84 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 85 help 86 Enable support for the AMCC PPC440SPe RAID engines. 87 88config APPLE_ADMAC 89 tristate "Apple ADMAC support" 90 depends on ARCH_APPLE || COMPILE_TEST 91 select DMA_ENGINE 92 default ARCH_APPLE 93 help 94 Enable support for Audio DMA Controller found on Apple Silicon SoCs. 95 96config AT_HDMAC 97 tristate "Atmel AHB DMA support" 98 depends on ARCH_AT91 99 select DMA_ENGINE 100 select DMA_VIRTUAL_CHANNELS 101 help 102 Support the Atmel AHB DMA controller. 103 104config AT_XDMAC 105 tristate "Atmel XDMA support" 106 depends on ARCH_AT91 107 select DMA_ENGINE 108 help 109 Support the Atmel XDMA controller. 110 111config AXI_DMAC 112 tristate "Analog Devices AXI-DMAC DMA support" 113 depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || COMPILE_TEST 114 select DMA_ENGINE 115 select DMA_VIRTUAL_CHANNELS 116 select REGMAP_MMIO 117 help 118 Enable support for the Analog Devices AXI-DMAC peripheral. This DMA 119 controller is often used in Analog Devices' reference designs for FPGA 120 platforms. 121 122config BCM_SBA_RAID 123 tristate "Broadcom SBA RAID engine support" 124 depends on ARM64 || COMPILE_TEST 125 depends on MAILBOX && RAID6_PQ 126 select DMA_ENGINE 127 select DMA_ENGINE_RAID 128 select ASYNC_TX_DISABLE_XOR_VAL_DMA 129 select ASYNC_TX_DISABLE_PQ_VAL_DMA 130 default m if ARCH_BCM_IPROC 131 help 132 Enable support for Broadcom SBA RAID Engine. The SBA RAID 133 engine is available on most of the Broadcom iProc SoCs. It 134 has the capability to offload memcpy, xor and pq computation 135 for raid5/6. 136 137config DMA_BCM2835 138 tristate "BCM2835 DMA engine support" 139 depends on ARCH_BCM2835 140 select DMA_ENGINE 141 select DMA_VIRTUAL_CHANNELS 142 143config DMA_JZ4780 144 tristate "JZ4780 DMA support" 145 depends on MIPS || COMPILE_TEST 146 select DMA_ENGINE 147 select DMA_VIRTUAL_CHANNELS 148 help 149 This selects support for the DMA controller in Ingenic JZ4780 SoCs. 150 If you have a board based on such a SoC and wish to use DMA for 151 devices which can use the DMA controller, say Y or M here. 152 153config DMA_SA11X0 154 tristate "SA-11x0 DMA support" 155 depends on ARCH_SA1100 || COMPILE_TEST 156 select DMA_ENGINE 157 select DMA_VIRTUAL_CHANNELS 158 help 159 Support the DMA engine found on Intel StrongARM SA-1100 and 160 SA-1110 SoCs. This DMA engine can only be used with on-chip 161 devices. 162 163config DMA_SUN4I 164 tristate "Allwinner A10 DMA SoCs support" 165 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I 166 default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I) 167 select DMA_ENGINE 168 select DMA_VIRTUAL_CHANNELS 169 help 170 Enable support for the DMA controller present in the sun4i, 171 sun5i and sun7i Allwinner ARM SoCs. 172 173config DMA_SUN6I 174 tristate "Allwinner A31 SoCs DMA support" 175 depends on ARCH_SUNXI || COMPILE_TEST 176 depends on RESET_CONTROLLER 177 select DMA_ENGINE 178 select DMA_VIRTUAL_CHANNELS 179 help 180 Support for the DMA engine first found in Allwinner A31 SoCs. 181 182config DW_AXI_DMAC 183 tristate "Synopsys DesignWare AXI DMA support" 184 depends on OF 185 depends on HAS_IOMEM 186 select DMA_ENGINE 187 select DMA_VIRTUAL_CHANNELS 188 help 189 Enable support for Synopsys DesignWare AXI DMA controller. 190 NOTE: This driver wasn't tested on 64 bit platform because 191 of lack 64 bit platform with Synopsys DW AXI DMAC. 192 193config EP93XX_DMA 194 bool "Cirrus Logic EP93xx DMA support" 195 depends on ARCH_EP93XX || COMPILE_TEST 196 select DMA_ENGINE 197 help 198 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. 199 200config FSL_DMA 201 tristate "Freescale Elo series DMA support" 202 depends on FSL_SOC 203 select DMA_ENGINE 204 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 205 help 206 Enable support for the Freescale Elo series DMA controllers. 207 The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the 208 EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on 209 some Txxx and Bxxx parts. 210 211config FSL_EDMA 212 tristate "Freescale eDMA engine support" 213 depends on OF 214 depends on HAS_IOMEM 215 select DMA_ENGINE 216 select DMA_VIRTUAL_CHANNELS 217 help 218 Support the Freescale eDMA engine with programmable channel 219 multiplexing capability for DMA request sources(slot). 220 This module can be found on Freescale Vybrid and LS-1 SoCs. 221 222config FSL_QDMA 223 tristate "NXP Layerscape qDMA engine support" 224 depends on ARM || ARM64 225 select DMA_ENGINE 226 select DMA_VIRTUAL_CHANNELS 227 select DMA_ENGINE_RAID 228 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 229 help 230 Support the NXP Layerscape qDMA engine with command queue and legacy mode. 231 Channel virtualization is supported through enqueuing of DMA jobs to, 232 or dequeuing DMA jobs from, different work queues. 233 This module can be found on NXP Layerscape SoCs. 234 The qdma driver only work on SoCs with a DPAA hardware block. 235 236config FSL_RAID 237 tristate "Freescale RAID engine Support" 238 depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH 239 select DMA_ENGINE 240 select DMA_ENGINE_RAID 241 help 242 Enable support for Freescale RAID Engine. RAID Engine is 243 available on some QorIQ SoCs (like P5020/P5040). It has 244 the capability to offload memcpy, xor and pq computation 245 for raid5/6. 246 247config HISI_DMA 248 tristate "HiSilicon DMA Engine support" 249 depends on ARCH_HISI || COMPILE_TEST 250 depends on PCI_MSI 251 select DMA_ENGINE 252 select DMA_VIRTUAL_CHANNELS 253 help 254 Support HiSilicon Kunpeng DMA engine. 255 256config IMG_MDC_DMA 257 tristate "IMG MDC support" 258 depends on MIPS || COMPILE_TEST 259 depends on MFD_SYSCON 260 select DMA_ENGINE 261 select DMA_VIRTUAL_CHANNELS 262 help 263 Enable support for the IMG multi-threaded DMA controller (MDC). 264 265config IMX_DMA 266 tristate "i.MX DMA support" 267 depends on ARCH_MXC 268 select DMA_ENGINE 269 help 270 Support the i.MX DMA engine. This engine is integrated into 271 Freescale i.MX1/21/27 chips. 272 273config IMX_SDMA 274 tristate "i.MX SDMA support" 275 depends on ARCH_MXC 276 select DMA_ENGINE 277 select DMA_VIRTUAL_CHANNELS 278 help 279 Support the i.MX SDMA engine. This engine is integrated into 280 Freescale i.MX25/31/35/51/53/6 chips. 281 282config INTEL_IDMA64 283 tristate "Intel integrated DMA 64-bit support" 284 depends on HAS_IOMEM 285 select DMA_ENGINE 286 select DMA_VIRTUAL_CHANNELS 287 help 288 Enable DMA support for Intel Low Power Subsystem such as found on 289 Intel Skylake PCH. 290 291config INTEL_IDXD_BUS 292 tristate 293 default INTEL_IDXD 294 295config INTEL_IDXD 296 tristate "Intel Data Accelerators support" 297 depends on PCI && X86_64 && !UML 298 depends on PCI_MSI 299 depends on PCI_PASID 300 depends on SBITMAP 301 select DMA_ENGINE 302 help 303 Enable support for the Intel(R) data accelerators present 304 in Intel Xeon CPU. 305 306 Say Y if you have such a platform. 307 308 If unsure, say N. 309 310config INTEL_IDXD_COMPAT 311 bool "Legacy behavior for idxd driver" 312 depends on PCI && X86_64 313 select INTEL_IDXD_BUS 314 help 315 Compatible driver to support old /sys/bus/dsa/drivers/dsa behavior. 316 The old behavior performed driver bind/unbind for device and wq 317 devices all under the dsa driver. The compat driver will emulate 318 the legacy behavior in order to allow existing support apps (i.e. 319 accel-config) to continue function. It is expected that accel-config 320 v3.2 and earlier will need the compat mode. A distro with later 321 accel-config version can disable this compat config. 322 323 Say Y if you have old applications that require such behavior. 324 325 If unsure, say N. 326 327# Config symbol that collects all the dependencies that's necessary to 328# support shared virtual memory for the devices supported by idxd. 329config INTEL_IDXD_SVM 330 bool "Accelerator Shared Virtual Memory Support" 331 depends on INTEL_IDXD 332 depends on INTEL_IOMMU_SVM 333 depends on PCI_PRI 334 depends on PCI_PASID 335 depends on PCI_IOV 336 337config INTEL_IDXD_PERFMON 338 bool "Intel Data Accelerators performance monitor support" 339 depends on INTEL_IDXD 340 help 341 Enable performance monitor (pmu) support for the Intel(R) 342 data accelerators present in Intel Xeon CPU. With this 343 enabled, perf can be used to monitor the DSA (Intel Data 344 Streaming Accelerator) events described in the Intel DSA 345 spec. 346 347 If unsure, say N. 348 349config INTEL_IOATDMA 350 tristate "Intel I/OAT DMA support" 351 depends on PCI && X86_64 && !UML 352 select DMA_ENGINE 353 select DMA_ENGINE_RAID 354 select DCA 355 help 356 Enable support for the Intel(R) I/OAT DMA engine present 357 in recent Intel Xeon chipsets. 358 359 Say Y here if you have such a chipset. 360 361 If unsure, say N. 362 363config K3_DMA 364 tristate "Hisilicon K3 DMA support" 365 depends on ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST 366 select DMA_ENGINE 367 select DMA_VIRTUAL_CHANNELS 368 help 369 Support the DMA engine for Hisilicon K3 platform 370 devices. 371 372config LPC18XX_DMAMUX 373 bool "NXP LPC18xx/43xx DMA MUX for PL080" 374 depends on ARCH_LPC18XX || COMPILE_TEST 375 depends on OF && AMBA_PL08X 376 select MFD_SYSCON 377 help 378 Enable support for DMA on NXP LPC18xx/43xx platforms 379 with PL080 and multiplexed DMA request lines. 380 381config MCF_EDMA 382 tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs" 383 depends on M5441x || (COMPILE_TEST && FSL_EDMA=n) 384 select DMA_ENGINE 385 select DMA_VIRTUAL_CHANNELS 386 help 387 Support the Freescale ColdFire eDMA engine, 64-channel 388 implementation that performs complex data transfers with 389 minimal intervention from a host processor. 390 This module can be found on Freescale ColdFire mcf5441x SoCs. 391 392config MILBEAUT_HDMAC 393 tristate "Milbeaut AHB DMA support" 394 depends on ARCH_MILBEAUT || COMPILE_TEST 395 depends on OF 396 select DMA_ENGINE 397 select DMA_VIRTUAL_CHANNELS 398 help 399 Say yes here to support the Socionext Milbeaut 400 HDMAC device. 401 402config MILBEAUT_XDMAC 403 tristate "Milbeaut AXI DMA support" 404 depends on ARCH_MILBEAUT || COMPILE_TEST 405 depends on OF 406 select DMA_ENGINE 407 select DMA_VIRTUAL_CHANNELS 408 help 409 Say yes here to support the Socionext Milbeaut 410 XDMAC device. 411 412config MMP_PDMA 413 tristate "MMP PDMA support" 414 depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST 415 select DMA_ENGINE 416 help 417 Support the MMP PDMA engine for PXA and MMP platform. 418 419config MMP_TDMA 420 tristate "MMP Two-Channel DMA support" 421 depends on ARCH_MMP || COMPILE_TEST 422 select DMA_ENGINE 423 select GENERIC_ALLOCATOR 424 help 425 Support the MMP Two-Channel DMA engine. 426 This engine used for MMP Audio DMA and pxa910 SQU. 427 428config MOXART_DMA 429 tristate "MOXART DMA support" 430 depends on ARCH_MOXART 431 select DMA_ENGINE 432 select DMA_VIRTUAL_CHANNELS 433 help 434 Enable support for the MOXA ART SoC DMA controller. 435 436 Say Y here if you enabled MMP ADMA, otherwise say N. 437 438config MPC512X_DMA 439 tristate "Freescale MPC512x built-in DMA engine support" 440 depends on PPC_MPC512x || PPC_MPC831x 441 select DMA_ENGINE 442 help 443 Enable support for the Freescale MPC512x built-in DMA engine. 444 445config MV_XOR 446 bool "Marvell XOR engine support" 447 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST 448 select DMA_ENGINE 449 select DMA_ENGINE_RAID 450 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 451 help 452 Enable support for the Marvell XOR engine. 453 454config MV_XOR_V2 455 bool "Marvell XOR engine version 2 support " 456 depends on ARM64 457 select DMA_ENGINE 458 select DMA_ENGINE_RAID 459 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 460 select GENERIC_MSI_IRQ 461 help 462 Enable support for the Marvell version 2 XOR engine. 463 464 This engine provides acceleration for copy, XOR and RAID6 465 operations, and is available on Marvell Armada 7K and 8K 466 platforms. 467 468config MXS_DMA 469 bool "MXS DMA support" 470 depends on ARCH_MXS || ARCH_MXC || COMPILE_TEST 471 select STMP_DEVICE 472 select DMA_ENGINE 473 help 474 Support the MXS DMA engine. This engine including APBH-DMA 475 and APBX-DMA is integrated into some Freescale chips. 476 477config NBPFAXI_DMA 478 tristate "Renesas Type-AXI NBPF DMA support" 479 select DMA_ENGINE 480 depends on ARM || COMPILE_TEST 481 help 482 Support for "Type-AXI" NBPF DMA IPs from Renesas 483 484config OWL_DMA 485 tristate "Actions Semi Owl SoCs DMA support" 486 depends on ARCH_ACTIONS 487 select DMA_ENGINE 488 select DMA_VIRTUAL_CHANNELS 489 help 490 Enable support for the Actions Semi Owl SoCs DMA controller. 491 492config PCH_DMA 493 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" 494 depends on PCI && (X86_32 || COMPILE_TEST) 495 select DMA_ENGINE 496 help 497 Enable support for Intel EG20T PCH DMA engine. 498 499 This driver also can be used for LAPIS Semiconductor IOH(Input/ 500 Output Hub), ML7213, ML7223 and ML7831. 501 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 502 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 503 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 504 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 505 506config PL330_DMA 507 tristate "DMA API Driver for PL330" 508 select DMA_ENGINE 509 depends on ARM_AMBA 510 help 511 Select if your platform has one or more PL330 DMACs. 512 You need to provide platform specific settings via 513 platform_data for a dma-pl330 device. 514 515config PXA_DMA 516 bool "PXA DMA support" 517 depends on (ARCH_MMP || ARCH_PXA) 518 select DMA_ENGINE 519 select DMA_VIRTUAL_CHANNELS 520 help 521 Support the DMA engine for PXA. It is also compatible with MMP PDMA 522 platform. The internal DMA IP of all PXA variants is supported, with 523 16 to 32 channels for peripheral to memory or memory to memory 524 transfers. 525 526config PLX_DMA 527 tristate "PLX ExpressLane PEX Switch DMA Engine Support" 528 depends on PCI 529 select DMA_ENGINE 530 help 531 Some PLX ExpressLane PCI Switches support additional DMA engines. 532 These are exposed via extra functions on the switch's 533 upstream port. Each function exposes one DMA channel. 534 535config STE_DMA40 536 bool "ST-Ericsson DMA40 support" 537 depends on ARCH_U8500 538 select DMA_ENGINE 539 select SRAM 540 help 541 Support for ST-Ericsson DMA40 controller 542 543config ST_FDMA 544 tristate "ST FDMA dmaengine support" 545 depends on ARCH_STI 546 depends on REMOTEPROC 547 select ST_SLIM_REMOTEPROC 548 select DMA_ENGINE 549 select DMA_VIRTUAL_CHANNELS 550 help 551 Enable support for ST FDMA controller. 552 It supports 16 independent DMA channels, accepts up to 32 DMA requests 553 554 Say Y here if you have such a chipset. 555 If unsure, say N. 556 557config STM32_DMA 558 bool "STMicroelectronics STM32 DMA support" 559 depends on ARCH_STM32 || COMPILE_TEST 560 select DMA_ENGINE 561 select DMA_VIRTUAL_CHANNELS 562 help 563 Enable support for the on-chip DMA controller on STMicroelectronics 564 STM32 MCUs. 565 If you have a board based on such a MCU and wish to use DMA say Y 566 here. 567 568config STM32_DMAMUX 569 bool "STMicroelectronics STM32 dma multiplexer support" 570 depends on STM32_DMA || COMPILE_TEST 571 help 572 Enable support for the on-chip DMA multiplexer on STMicroelectronics 573 STM32 MCUs. 574 If you have a board based on such a MCU and wish to use DMAMUX say Y 575 here. 576 577config STM32_MDMA 578 bool "STMicroelectronics STM32 master dma support" 579 depends on ARCH_STM32 || COMPILE_TEST 580 depends on OF 581 select DMA_ENGINE 582 select DMA_VIRTUAL_CHANNELS 583 help 584 Enable support for the on-chip MDMA controller on STMicroelectronics 585 STM32 platforms. 586 If you have a board based on STM32 SoC and wish to use the master DMA 587 say Y here. 588 589config SPRD_DMA 590 tristate "Spreadtrum DMA support" 591 depends on ARCH_SPRD || COMPILE_TEST 592 select DMA_ENGINE 593 select DMA_VIRTUAL_CHANNELS 594 help 595 Enable support for the on-chip DMA controller on Spreadtrum platform. 596 597config TXX9_DMAC 598 tristate "Toshiba TXx9 SoC DMA support" 599 depends on MACH_TX49XX 600 select DMA_ENGINE 601 help 602 Support the TXx9 SoC internal DMA controller. This can be 603 integrated in chips such as the Toshiba TX4927/38/39. 604 605config TEGRA186_GPC_DMA 606 tristate "NVIDIA Tegra GPC DMA support" 607 depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT 608 depends on IOMMU_API 609 select DMA_ENGINE 610 select DMA_VIRTUAL_CHANNELS 611 help 612 Support for the NVIDIA Tegra General Purpose Central DMA controller. 613 The DMA controller has multiple DMA channels which can be configured 614 for different peripherals like UART, SPI, etc which are on APB bus. 615 This DMA controller transfers data from memory to peripheral FIFO 616 or vice versa. It also supports memory to memory data transfer. 617 618config TEGRA20_APB_DMA 619 tristate "NVIDIA Tegra20 APB DMA support" 620 depends on ARCH_TEGRA || COMPILE_TEST 621 select DMA_ENGINE 622 help 623 Support for the NVIDIA Tegra20 APB DMA controller driver. The 624 DMA controller is having multiple DMA channel which can be 625 configured for different peripherals like audio, UART, SPI, 626 I2C etc which is in APB bus. 627 This DMA controller transfers data from memory to peripheral fifo 628 or vice versa. It does not support memory to memory data transfer. 629 630config TEGRA210_ADMA 631 tristate "NVIDIA Tegra210 ADMA support" 632 depends on (ARCH_TEGRA || COMPILE_TEST) 633 select DMA_ENGINE 634 select DMA_VIRTUAL_CHANNELS 635 help 636 Support for the NVIDIA Tegra210/Tegra186/Tegra194/Tegra234 ADMA 637 controller driver. The DMA controller has multiple DMA channels 638 and is used to service various audio clients in the Tegra210 639 audio processing engine (APE). This DMA controller transfers 640 data from memory to peripheral and vice versa. It does not 641 support memory to memory data transfer. 642 643config TIMB_DMA 644 tristate "Timberdale FPGA DMA support" 645 depends on MFD_TIMBERDALE || COMPILE_TEST 646 select DMA_ENGINE 647 help 648 Enable support for the Timberdale FPGA DMA engine. 649 650config UNIPHIER_MDMAC 651 tristate "UniPhier MIO DMAC" 652 depends on ARCH_UNIPHIER || COMPILE_TEST 653 depends on OF 654 select DMA_ENGINE 655 select DMA_VIRTUAL_CHANNELS 656 help 657 Enable support for the MIO DMAC (Media I/O DMA controller) on the 658 UniPhier platform. This DMA controller is used as the external 659 DMA engine of the SD/eMMC controllers of the LD4, Pro4, sLD8 SoCs. 660 661config UNIPHIER_XDMAC 662 tristate "UniPhier XDMAC support" 663 depends on ARCH_UNIPHIER || COMPILE_TEST 664 depends on OF 665 select DMA_ENGINE 666 select DMA_VIRTUAL_CHANNELS 667 help 668 Enable support for the XDMAC (external DMA controller) on the 669 UniPhier platform. This DMA controller can transfer data from 670 memory to memory, memory to peripheral and peripheral to memory. 671 672config XGENE_DMA 673 tristate "APM X-Gene DMA support" 674 depends on ARCH_XGENE || COMPILE_TEST 675 select DMA_ENGINE 676 select DMA_ENGINE_RAID 677 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 678 help 679 Enable support for the APM X-Gene SoC DMA engine. 680 681config XILINX_DMA 682 tristate "Xilinx AXI DMAS Engine" 683 depends on HAS_IOMEM 684 select DMA_ENGINE 685 help 686 Enable support for Xilinx AXI VDMA Soft IP. 687 688 AXI VDMA engine provides high-bandwidth direct memory access 689 between memory and AXI4-Stream video type target 690 peripherals including peripherals which support AXI4- 691 Stream Video Protocol. It has two stream interfaces/ 692 channels, Memory Mapped to Stream (MM2S) and Stream to 693 Memory Mapped (S2MM) for the data transfers. 694 AXI CDMA engine provides high-bandwidth direct memory access 695 between a memory-mapped source address and a memory-mapped 696 destination address. 697 AXI DMA engine provides high-bandwidth one dimensional direct 698 memory access between memory and AXI4-Stream target peripherals. 699 AXI MCDMA engine provides high-bandwidth direct memory access 700 between memory and AXI4-Stream target peripherals. It provides 701 the scatter gather interface with multiple channels independent 702 configuration support. 703 704config XILINX_XDMA 705 tristate "Xilinx DMA/Bridge Subsystem DMA Engine" 706 depends on HAS_IOMEM 707 select DMA_ENGINE 708 select DMA_VIRTUAL_CHANNELS 709 select REGMAP_MMIO 710 help 711 Enable support for Xilinx DMA/Bridge Subsystem DMA engine. The DMA 712 provides high performance block data movement between Host memory 713 and the DMA subsystem. These direct memory transfers can be both in 714 the Host to Card (H2C) and Card to Host (C2H) transfers. 715 The core also provides up to 16 user interrupt wires that generate 716 interrupts to the host. 717 718config XILINX_ZYNQMP_DMA 719 tristate "Xilinx ZynqMP DMA Engine" 720 depends on ARCH_ZYNQ || MICROBLAZE || ARM64 || COMPILE_TEST 721 select DMA_ENGINE 722 help 723 Enable support for Xilinx ZynqMP DMA controller. 724 725config XILINX_ZYNQMP_DPDMA 726 tristate "Xilinx DPDMA Engine" 727 depends on HAS_IOMEM && OF 728 select DMA_ENGINE 729 select DMA_VIRTUAL_CHANNELS 730 help 731 Enable support for Xilinx ZynqMP DisplayPort DMA. Choose this option 732 if you have a Xilinx ZynqMP SoC with a DisplayPort subsystem. The 733 driver provides the dmaengine required by the DisplayPort subsystem 734 display driver. 735 736# driver files 737source "drivers/dma/bestcomm/Kconfig" 738 739source "drivers/dma/mediatek/Kconfig" 740 741source "drivers/dma/ptdma/Kconfig" 742 743source "drivers/dma/qcom/Kconfig" 744 745source "drivers/dma/dw/Kconfig" 746 747source "drivers/dma/dw-edma/Kconfig" 748 749source "drivers/dma/hsu/Kconfig" 750 751source "drivers/dma/sf-pdma/Kconfig" 752 753source "drivers/dma/sh/Kconfig" 754 755source "drivers/dma/ti/Kconfig" 756 757source "drivers/dma/fsl-dpaa2-qdma/Kconfig" 758 759source "drivers/dma/lgm/Kconfig" 760 761# clients 762comment "DMA Clients" 763 depends on DMA_ENGINE 764 765config ASYNC_TX_DMA 766 bool "Async_tx: Offload support for the async_tx api" 767 depends on DMA_ENGINE 768 help 769 This allows the async_tx api to take advantage of offload engines for 770 memcpy, memset, xor, and raid6 p+q operations. If your platform has 771 a dma engine that can perform raid operations and you have enabled 772 MD_RAID456 say Y. 773 774 If unsure, say N. 775 776config DMATEST 777 tristate "DMA Test client" 778 depends on DMA_ENGINE 779 select DMA_ENGINE_RAID 780 help 781 Simple DMA test client. Say N unless you're debugging a 782 DMA Device driver. 783 784config DMA_ENGINE_RAID 785 bool 786 787endif 788