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 help 101 Support the Atmel AHB DMA controller. 102 103config AT_XDMAC 104 tristate "Atmel XDMA support" 105 depends on ARCH_AT91 106 select DMA_ENGINE 107 help 108 Support the Atmel XDMA controller. 109 110config AXI_DMAC 111 tristate "Analog Devices AXI-DMAC DMA support" 112 depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || COMPILE_TEST 113 select DMA_ENGINE 114 select DMA_VIRTUAL_CHANNELS 115 select REGMAP_MMIO 116 help 117 Enable support for the Analog Devices AXI-DMAC peripheral. This DMA 118 controller is often used in Analog Devices' reference designs for FPGA 119 platforms. 120 121config BCM_SBA_RAID 122 tristate "Broadcom SBA RAID engine support" 123 depends on ARM64 || COMPILE_TEST 124 depends on MAILBOX && RAID6_PQ 125 select DMA_ENGINE 126 select DMA_ENGINE_RAID 127 select ASYNC_TX_DISABLE_XOR_VAL_DMA 128 select ASYNC_TX_DISABLE_PQ_VAL_DMA 129 default m if ARCH_BCM_IPROC 130 help 131 Enable support for Broadcom SBA RAID Engine. The SBA RAID 132 engine is available on most of the Broadcom iProc SoCs. It 133 has the capability to offload memcpy, xor and pq computation 134 for raid5/6. 135 136config DMA_BCM2835 137 tristate "BCM2835 DMA engine support" 138 depends on ARCH_BCM2835 139 select DMA_ENGINE 140 select DMA_VIRTUAL_CHANNELS 141 142config DMA_JZ4780 143 tristate "JZ4780 DMA support" 144 depends on MIPS || COMPILE_TEST 145 select DMA_ENGINE 146 select DMA_VIRTUAL_CHANNELS 147 help 148 This selects support for the DMA controller in Ingenic JZ4780 SoCs. 149 If you have a board based on such a SoC and wish to use DMA for 150 devices which can use the DMA controller, say Y or M here. 151 152config DMA_SA11X0 153 tristate "SA-11x0 DMA support" 154 depends on ARCH_SA1100 || COMPILE_TEST 155 select DMA_ENGINE 156 select DMA_VIRTUAL_CHANNELS 157 help 158 Support the DMA engine found on Intel StrongARM SA-1100 and 159 SA-1110 SoCs. This DMA engine can only be used with on-chip 160 devices. 161 162config DMA_SUN4I 163 tristate "Allwinner A10 DMA SoCs support" 164 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I 165 default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I) 166 select DMA_ENGINE 167 select DMA_VIRTUAL_CHANNELS 168 help 169 Enable support for the DMA controller present in the sun4i, 170 sun5i and sun7i Allwinner ARM SoCs. 171 172config DMA_SUN6I 173 tristate "Allwinner A31 SoCs DMA support" 174 depends on ARCH_SUNXI || COMPILE_TEST 175 depends on RESET_CONTROLLER 176 select DMA_ENGINE 177 select DMA_VIRTUAL_CHANNELS 178 help 179 Support for the DMA engine first found in Allwinner A31 SoCs. 180 181config DW_AXI_DMAC 182 tristate "Synopsys DesignWare AXI DMA support" 183 depends on OF || COMPILE_TEST 184 depends on HAS_IOMEM 185 select DMA_ENGINE 186 select DMA_VIRTUAL_CHANNELS 187 help 188 Enable support for Synopsys DesignWare AXI DMA controller. 189 NOTE: This driver wasn't tested on 64 bit platform because 190 of lack 64 bit platform with Synopsys DW AXI DMAC. 191 192config EP93XX_DMA 193 bool "Cirrus Logic EP93xx DMA support" 194 depends on ARCH_EP93XX || COMPILE_TEST 195 select DMA_ENGINE 196 help 197 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. 198 199config FSL_DMA 200 tristate "Freescale Elo series DMA support" 201 depends on FSL_SOC 202 select DMA_ENGINE 203 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 204 help 205 Enable support for the Freescale Elo series DMA controllers. 206 The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the 207 EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on 208 some Txxx and Bxxx parts. 209 210config FSL_EDMA 211 tristate "Freescale eDMA engine support" 212 depends on OF 213 select DMA_ENGINE 214 select DMA_VIRTUAL_CHANNELS 215 help 216 Support the Freescale eDMA engine with programmable channel 217 multiplexing capability for DMA request sources(slot). 218 This module can be found on Freescale Vybrid and LS-1 SoCs. 219 220config FSL_QDMA 221 tristate "NXP Layerscape qDMA engine support" 222 depends on ARM || ARM64 223 select DMA_ENGINE 224 select DMA_VIRTUAL_CHANNELS 225 select DMA_ENGINE_RAID 226 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 227 help 228 Support the NXP Layerscape qDMA engine with command queue and legacy mode. 229 Channel virtualization is supported through enqueuing of DMA jobs to, 230 or dequeuing DMA jobs from, different work queues. 231 This module can be found on NXP Layerscape SoCs. 232 The qdma driver only work on SoCs with a DPAA hardware block. 233 234config FSL_RAID 235 tristate "Freescale RAID engine Support" 236 depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH 237 select DMA_ENGINE 238 select DMA_ENGINE_RAID 239 help 240 Enable support for Freescale RAID Engine. RAID Engine is 241 available on some QorIQ SoCs (like P5020/P5040). It has 242 the capability to offload memcpy, xor and pq computation 243 for raid5/6. 244 245config HISI_DMA 246 tristate "HiSilicon DMA Engine support" 247 depends on ARM64 || COMPILE_TEST 248 depends on PCI_MSI 249 select DMA_ENGINE 250 select DMA_VIRTUAL_CHANNELS 251 help 252 Support HiSilicon Kunpeng DMA engine. 253 254config IMG_MDC_DMA 255 tristate "IMG MDC support" 256 depends on MIPS || COMPILE_TEST 257 depends on MFD_SYSCON 258 select DMA_ENGINE 259 select DMA_VIRTUAL_CHANNELS 260 help 261 Enable support for the IMG multi-threaded DMA controller (MDC). 262 263config IMX_DMA 264 tristate "i.MX DMA support" 265 depends on ARCH_MXC 266 select DMA_ENGINE 267 help 268 Support the i.MX DMA engine. This engine is integrated into 269 Freescale i.MX1/21/27 chips. 270 271config IMX_SDMA 272 tristate "i.MX SDMA support" 273 depends on ARCH_MXC 274 select DMA_ENGINE 275 select DMA_VIRTUAL_CHANNELS 276 help 277 Support the i.MX SDMA engine. This engine is integrated into 278 Freescale i.MX25/31/35/51/53/6 chips. 279 280config INTEL_IDMA64 281 tristate "Intel integrated DMA 64-bit support" 282 select DMA_ENGINE 283 select DMA_VIRTUAL_CHANNELS 284 help 285 Enable DMA support for Intel Low Power Subsystem such as found on 286 Intel Skylake PCH. 287 288config INTEL_IDXD_BUS 289 tristate 290 default INTEL_IDXD 291 292config INTEL_IDXD 293 tristate "Intel Data Accelerators support" 294 depends on PCI && X86_64 && !UML 295 depends on PCI_MSI 296 depends on PCI_PASID 297 depends on SBITMAP 298 select DMA_ENGINE 299 help 300 Enable support for the Intel(R) data accelerators present 301 in Intel Xeon CPU. 302 303 Say Y if you have such a platform. 304 305 If unsure, say N. 306 307config INTEL_IDXD_COMPAT 308 bool "Legacy behavior for idxd driver" 309 depends on PCI && X86_64 310 select INTEL_IDXD_BUS 311 help 312 Compatible driver to support old /sys/bus/dsa/drivers/dsa behavior. 313 The old behavior performed driver bind/unbind for device and wq 314 devices all under the dsa driver. The compat driver will emulate 315 the legacy behavior in order to allow existing support apps (i.e. 316 accel-config) to continue function. It is expected that accel-config 317 v3.2 and earlier will need the compat mode. A distro with later 318 accel-config version can disable this compat config. 319 320 Say Y if you have old applications that require such behavior. 321 322 If unsure, say N. 323 324# Config symbol that collects all the dependencies that's necessary to 325# support shared virtual memory for the devices supported by idxd. 326config INTEL_IDXD_SVM 327 bool "Accelerator Shared Virtual Memory Support" 328 depends on INTEL_IDXD 329 depends on INTEL_IOMMU_SVM 330 depends on PCI_PRI 331 depends on PCI_PASID 332 depends on PCI_IOV 333 334config INTEL_IDXD_PERFMON 335 bool "Intel Data Accelerators performance monitor support" 336 depends on INTEL_IDXD 337 help 338 Enable performance monitor (pmu) support for the Intel(R) 339 data accelerators present in Intel Xeon CPU. With this 340 enabled, perf can be used to monitor the DSA (Intel Data 341 Streaming Accelerator) events described in the Intel DSA 342 spec. 343 344 If unsure, say N. 345 346config INTEL_IOATDMA 347 tristate "Intel I/OAT DMA support" 348 depends on PCI && X86_64 && !UML 349 select DMA_ENGINE 350 select DMA_ENGINE_RAID 351 select DCA 352 help 353 Enable support for the Intel(R) I/OAT DMA engine present 354 in recent Intel Xeon chipsets. 355 356 Say Y here if you have such a chipset. 357 358 If unsure, say N. 359 360config INTEL_IOP_ADMA 361 tristate "Intel IOP32x ADMA support" 362 depends on ARCH_IOP32X || COMPILE_TEST 363 select DMA_ENGINE 364 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 365 help 366 Enable support for the Intel(R) IOP Series RAID engines. 367 368config K3_DMA 369 tristate "Hisilicon K3 DMA support" 370 depends on ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST 371 select DMA_ENGINE 372 select DMA_VIRTUAL_CHANNELS 373 help 374 Support the DMA engine for Hisilicon K3 platform 375 devices. 376 377config LPC18XX_DMAMUX 378 bool "NXP LPC18xx/43xx DMA MUX for PL080" 379 depends on ARCH_LPC18XX || COMPILE_TEST 380 depends on OF && AMBA_PL08X 381 select MFD_SYSCON 382 help 383 Enable support for DMA on NXP LPC18xx/43xx platforms 384 with PL080 and multiplexed DMA request lines. 385 386config MCF_EDMA 387 tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs" 388 depends on M5441x || COMPILE_TEST 389 select DMA_ENGINE 390 select DMA_VIRTUAL_CHANNELS 391 help 392 Support the Freescale ColdFire eDMA engine, 64-channel 393 implementation that performs complex data transfers with 394 minimal intervention from a host processor. 395 This module can be found on Freescale ColdFire mcf5441x SoCs. 396 397config MILBEAUT_HDMAC 398 tristate "Milbeaut AHB DMA support" 399 depends on ARCH_MILBEAUT || COMPILE_TEST 400 depends on OF 401 select DMA_ENGINE 402 select DMA_VIRTUAL_CHANNELS 403 help 404 Say yes here to support the Socionext Milbeaut 405 HDMAC device. 406 407config MILBEAUT_XDMAC 408 tristate "Milbeaut AXI DMA support" 409 depends on ARCH_MILBEAUT || COMPILE_TEST 410 depends on OF 411 select DMA_ENGINE 412 select DMA_VIRTUAL_CHANNELS 413 help 414 Say yes here to support the Socionext Milbeaut 415 XDMAC device. 416 417config MMP_PDMA 418 tristate "MMP PDMA support" 419 depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST 420 select DMA_ENGINE 421 help 422 Support the MMP PDMA engine for PXA and MMP platform. 423 424config MMP_TDMA 425 tristate "MMP Two-Channel DMA support" 426 depends on ARCH_MMP || COMPILE_TEST 427 select DMA_ENGINE 428 select GENERIC_ALLOCATOR 429 help 430 Support the MMP Two-Channel DMA engine. 431 This engine used for MMP Audio DMA and pxa910 SQU. 432 433config MOXART_DMA 434 tristate "MOXART DMA support" 435 depends on ARCH_MOXART 436 select DMA_ENGINE 437 select DMA_VIRTUAL_CHANNELS 438 help 439 Enable support for the MOXA ART SoC DMA controller. 440 441 Say Y here if you enabled MMP ADMA, otherwise say N. 442 443config MPC512X_DMA 444 tristate "Freescale MPC512x built-in DMA engine support" 445 depends on PPC_MPC512x || PPC_MPC831x 446 select DMA_ENGINE 447 help 448 Enable support for the Freescale MPC512x built-in DMA engine. 449 450config MV_XOR 451 bool "Marvell XOR engine support" 452 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST 453 select DMA_ENGINE 454 select DMA_ENGINE_RAID 455 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 456 help 457 Enable support for the Marvell XOR engine. 458 459config MV_XOR_V2 460 bool "Marvell XOR engine version 2 support " 461 depends on ARM64 462 select DMA_ENGINE 463 select DMA_ENGINE_RAID 464 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 465 select GENERIC_MSI_IRQ_DOMAIN 466 help 467 Enable support for the Marvell version 2 XOR engine. 468 469 This engine provides acceleration for copy, XOR and RAID6 470 operations, and is available on Marvell Armada 7K and 8K 471 platforms. 472 473config MXS_DMA 474 bool "MXS DMA support" 475 depends on ARCH_MXS || ARCH_MXC || COMPILE_TEST 476 select STMP_DEVICE 477 select DMA_ENGINE 478 help 479 Support the MXS DMA engine. This engine including APBH-DMA 480 and APBX-DMA is integrated into some Freescale chips. 481 482config MX3_IPU 483 bool "MX3x Image Processing Unit support" 484 depends on ARCH_MXC 485 select DMA_ENGINE 486 default y 487 help 488 If you plan to use the Image Processing unit in the i.MX3x, say 489 Y here. If unsure, select Y. 490 491config MX3_IPU_IRQS 492 int "Number of dynamically mapped interrupts for IPU" 493 depends on MX3_IPU 494 range 2 137 495 default 4 496 help 497 Out of 137 interrupt sources on i.MX31 IPU only very few are used. 498 To avoid bloating the irq_desc[] array we allocate a sufficient 499 number of IRQ slots and map them dynamically to specific sources. 500 501config NBPFAXI_DMA 502 tristate "Renesas Type-AXI NBPF DMA support" 503 select DMA_ENGINE 504 depends on ARM || COMPILE_TEST 505 help 506 Support for "Type-AXI" NBPF DMA IPs from Renesas 507 508config OWL_DMA 509 tristate "Actions Semi Owl SoCs DMA support" 510 depends on ARCH_ACTIONS 511 select DMA_ENGINE 512 select DMA_VIRTUAL_CHANNELS 513 help 514 Enable support for the Actions Semi Owl SoCs DMA controller. 515 516config PCH_DMA 517 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" 518 depends on PCI && (X86_32 || COMPILE_TEST) 519 select DMA_ENGINE 520 help 521 Enable support for Intel EG20T PCH DMA engine. 522 523 This driver also can be used for LAPIS Semiconductor IOH(Input/ 524 Output Hub), ML7213, ML7223 and ML7831. 525 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 526 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 527 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 528 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 529 530config PL330_DMA 531 tristate "DMA API Driver for PL330" 532 select DMA_ENGINE 533 depends on ARM_AMBA 534 help 535 Select if your platform has one or more PL330 DMACs. 536 You need to provide platform specific settings via 537 platform_data for a dma-pl330 device. 538 539config PXA_DMA 540 bool "PXA DMA support" 541 depends on (ARCH_MMP || ARCH_PXA) 542 select DMA_ENGINE 543 select DMA_VIRTUAL_CHANNELS 544 help 545 Support the DMA engine for PXA. It is also compatible with MMP PDMA 546 platform. The internal DMA IP of all PXA variants is supported, with 547 16 to 32 channels for peripheral to memory or memory to memory 548 transfers. 549 550config PLX_DMA 551 tristate "PLX ExpressLane PEX Switch DMA Engine Support" 552 depends on PCI 553 select DMA_ENGINE 554 help 555 Some PLX ExpressLane PCI Switches support additional DMA engines. 556 These are exposed via extra functions on the switch's 557 upstream port. Each function exposes one DMA channel. 558 559config STE_DMA40 560 bool "ST-Ericsson DMA40 support" 561 depends on ARCH_U8500 562 select DMA_ENGINE 563 help 564 Support for ST-Ericsson DMA40 controller 565 566config ST_FDMA 567 tristate "ST FDMA dmaengine support" 568 depends on ARCH_STI 569 depends on REMOTEPROC 570 select ST_SLIM_REMOTEPROC 571 select DMA_ENGINE 572 select DMA_VIRTUAL_CHANNELS 573 help 574 Enable support for ST FDMA controller. 575 It supports 16 independent DMA channels, accepts up to 32 DMA requests 576 577 Say Y here if you have such a chipset. 578 If unsure, say N. 579 580config STM32_DMA 581 bool "STMicroelectronics STM32 DMA support" 582 depends on ARCH_STM32 || COMPILE_TEST 583 select DMA_ENGINE 584 select DMA_VIRTUAL_CHANNELS 585 help 586 Enable support for the on-chip DMA controller on STMicroelectronics 587 STM32 MCUs. 588 If you have a board based on such a MCU and wish to use DMA say Y 589 here. 590 591config STM32_DMAMUX 592 bool "STMicroelectronics STM32 dma multiplexer support" 593 depends on STM32_DMA || COMPILE_TEST 594 help 595 Enable support for the on-chip DMA multiplexer on STMicroelectronics 596 STM32 MCUs. 597 If you have a board based on such a MCU and wish to use DMAMUX say Y 598 here. 599 600config STM32_MDMA 601 bool "STMicroelectronics STM32 master dma support" 602 depends on ARCH_STM32 || COMPILE_TEST 603 depends on OF 604 select DMA_ENGINE 605 select DMA_VIRTUAL_CHANNELS 606 help 607 Enable support for the on-chip MDMA controller on STMicroelectronics 608 STM32 platforms. 609 If you have a board based on STM32 SoC and wish to use the master DMA 610 say Y here. 611 612config SPRD_DMA 613 tristate "Spreadtrum DMA support" 614 depends on ARCH_SPRD || COMPILE_TEST 615 select DMA_ENGINE 616 select DMA_VIRTUAL_CHANNELS 617 help 618 Enable support for the on-chip DMA controller on Spreadtrum platform. 619 620config S3C24XX_DMAC 621 bool "Samsung S3C24XX DMA support" 622 depends on ARCH_S3C24XX || COMPILE_TEST 623 select DMA_ENGINE 624 select DMA_VIRTUAL_CHANNELS 625 help 626 Support for the Samsung S3C24XX DMA controller driver. The 627 DMA controller is having multiple DMA channels which can be 628 configured for different peripherals like audio, UART, SPI. 629 The DMA controller can transfer data from memory to peripheral, 630 periphal to memory, periphal to periphal and memory to memory. 631 632config TXX9_DMAC 633 tristate "Toshiba TXx9 SoC DMA support" 634 depends on MACH_TX49XX 635 select DMA_ENGINE 636 help 637 Support the TXx9 SoC internal DMA controller. This can be 638 integrated in chips such as the Toshiba TX4927/38/39. 639 640config TEGRA186_GPC_DMA 641 tristate "NVIDIA Tegra GPC DMA support" 642 depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT 643 depends on IOMMU_API 644 select DMA_ENGINE 645 help 646 Support for the NVIDIA Tegra General Purpose Central DMA controller. 647 The DMA controller has multiple DMA channels which can be configured 648 for different peripherals like UART, SPI, etc which are on APB bus. 649 This DMA controller transfers data from memory to peripheral FIFO 650 or vice versa. It also supports memory to memory data transfer. 651 652config TEGRA20_APB_DMA 653 tristate "NVIDIA Tegra20 APB DMA support" 654 depends on ARCH_TEGRA || COMPILE_TEST 655 select DMA_ENGINE 656 help 657 Support for the NVIDIA Tegra20 APB DMA controller driver. The 658 DMA controller is having multiple DMA channel which can be 659 configured for different peripherals like audio, UART, SPI, 660 I2C etc which is in APB bus. 661 This DMA controller transfers data from memory to peripheral fifo 662 or vice versa. It does not support memory to memory data transfer. 663 664config TEGRA210_ADMA 665 tristate "NVIDIA Tegra210 ADMA support" 666 depends on (ARCH_TEGRA_210_SOC || COMPILE_TEST) 667 select DMA_ENGINE 668 select DMA_VIRTUAL_CHANNELS 669 help 670 Support for the NVIDIA Tegra210 ADMA controller driver. The 671 DMA controller has multiple DMA channels and is used to service 672 various audio clients in the Tegra210 audio processing engine 673 (APE). This DMA controller transfers data from memory to 674 peripheral and vice versa. It does not support memory to 675 memory data transfer. 676 677config TIMB_DMA 678 tristate "Timberdale FPGA DMA support" 679 depends on MFD_TIMBERDALE || COMPILE_TEST 680 select DMA_ENGINE 681 help 682 Enable support for the Timberdale FPGA DMA engine. 683 684config UNIPHIER_MDMAC 685 tristate "UniPhier MIO DMAC" 686 depends on ARCH_UNIPHIER || COMPILE_TEST 687 depends on OF 688 select DMA_ENGINE 689 select DMA_VIRTUAL_CHANNELS 690 help 691 Enable support for the MIO DMAC (Media I/O DMA controller) on the 692 UniPhier platform. This DMA controller is used as the external 693 DMA engine of the SD/eMMC controllers of the LD4, Pro4, sLD8 SoCs. 694 695config UNIPHIER_XDMAC 696 tristate "UniPhier XDMAC support" 697 depends on ARCH_UNIPHIER || COMPILE_TEST 698 depends on OF 699 select DMA_ENGINE 700 select DMA_VIRTUAL_CHANNELS 701 help 702 Enable support for the XDMAC (external DMA controller) on the 703 UniPhier platform. This DMA controller can transfer data from 704 memory to memory, memory to peripheral and peripheral to memory. 705 706config XGENE_DMA 707 tristate "APM X-Gene DMA support" 708 depends on ARCH_XGENE || COMPILE_TEST 709 select DMA_ENGINE 710 select DMA_ENGINE_RAID 711 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 712 help 713 Enable support for the APM X-Gene SoC DMA engine. 714 715config XILINX_DMA 716 tristate "Xilinx AXI DMAS Engine" 717 depends on (ARCH_ZYNQ || MICROBLAZE || ARM64) 718 select DMA_ENGINE 719 help 720 Enable support for Xilinx AXI VDMA Soft IP. 721 722 AXI VDMA engine provides high-bandwidth direct memory access 723 between memory and AXI4-Stream video type target 724 peripherals including peripherals which support AXI4- 725 Stream Video Protocol. It has two stream interfaces/ 726 channels, Memory Mapped to Stream (MM2S) and Stream to 727 Memory Mapped (S2MM) for the data transfers. 728 AXI CDMA engine provides high-bandwidth direct memory access 729 between a memory-mapped source address and a memory-mapped 730 destination address. 731 AXI DMA engine provides high-bandwidth one dimensional direct 732 memory access between memory and AXI4-Stream target peripherals. 733 AXI MCDMA engine provides high-bandwidth direct memory access 734 between memory and AXI4-Stream target peripherals. It provides 735 the scatter gather interface with multiple channels independent 736 configuration support. 737 738config XILINX_ZYNQMP_DMA 739 tristate "Xilinx ZynqMP DMA Engine" 740 depends on ARCH_ZYNQ || MICROBLAZE || ARM64 || COMPILE_TEST 741 select DMA_ENGINE 742 help 743 Enable support for Xilinx ZynqMP DMA controller. 744 745config XILINX_ZYNQMP_DPDMA 746 tristate "Xilinx DPDMA Engine" 747 depends on HAS_IOMEM && OF 748 select DMA_ENGINE 749 select DMA_VIRTUAL_CHANNELS 750 help 751 Enable support for Xilinx ZynqMP DisplayPort DMA. Choose this option 752 if you have a Xilinx ZynqMP SoC with a DisplayPort subsystem. The 753 driver provides the dmaengine required by the DisplayPort subsystem 754 display driver. 755 756# driver files 757source "drivers/dma/bestcomm/Kconfig" 758 759source "drivers/dma/mediatek/Kconfig" 760 761source "drivers/dma/ptdma/Kconfig" 762 763source "drivers/dma/qcom/Kconfig" 764 765source "drivers/dma/dw/Kconfig" 766 767source "drivers/dma/dw-edma/Kconfig" 768 769source "drivers/dma/hsu/Kconfig" 770 771source "drivers/dma/sf-pdma/Kconfig" 772 773source "drivers/dma/sh/Kconfig" 774 775source "drivers/dma/ti/Kconfig" 776 777source "drivers/dma/fsl-dpaa2-qdma/Kconfig" 778 779source "drivers/dma/lgm/Kconfig" 780 781# clients 782comment "DMA Clients" 783 depends on DMA_ENGINE 784 785config ASYNC_TX_DMA 786 bool "Async_tx: Offload support for the async_tx api" 787 depends on DMA_ENGINE 788 help 789 This allows the async_tx api to take advantage of offload engines for 790 memcpy, memset, xor, and raid6 p+q operations. If your platform has 791 a dma engine that can perform raid operations and you have enabled 792 MD_RAID456 say Y. 793 794 If unsure, say N. 795 796config DMATEST 797 tristate "DMA Test client" 798 depends on DMA_ENGINE 799 select DMA_ENGINE_RAID 800 help 801 Simple DMA test client. Say N unless you're debugging a 802 DMA Device driver. 803 804config DMA_ENGINE_RAID 805 bool 806 807endif 808