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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_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 LS2X_APB_DMA
382 tristate "Loongson LS2X APB DMA support"
383 depends on LOONGARCH || COMPILE_TEST
384 select DMA_ENGINE
385 select DMA_VIRTUAL_CHANNELS
386 help
387 Support for the Loongson LS2X APB DMA controller driver. The
388 DMA controller is having single DMA channel which can be
389 configured for different peripherals like audio, nand, sdio
390 etc which is in APB bus.
391
392 This DMA controller transfers data from memory to peripheral fifo.
393 It does not support memory to memory data transfer.
394
395config MCF_EDMA
396 tristate "Freescale eDMA engine support, ColdFire mcf5441x SoCs"
397 depends on M5441x || COMPILE_TEST
398 select DMA_ENGINE
399 select DMA_VIRTUAL_CHANNELS
400 help
401 Support the Freescale ColdFire eDMA engine, 64-channel
402 implementation that performs complex data transfers with
403 minimal intervention from a host processor.
404 This module can be found on Freescale ColdFire mcf5441x SoCs.
405
406config MILBEAUT_HDMAC
407 tristate "Milbeaut AHB DMA support"
408 depends on ARCH_MILBEAUT || COMPILE_TEST
409 depends on OF
410 select DMA_ENGINE
411 select DMA_VIRTUAL_CHANNELS
412 help
413 Say yes here to support the Socionext Milbeaut
414 HDMAC device.
415
416config MILBEAUT_XDMAC
417 tristate "Milbeaut AXI DMA support"
418 depends on ARCH_MILBEAUT || COMPILE_TEST
419 depends on OF
420 select DMA_ENGINE
421 select DMA_VIRTUAL_CHANNELS
422 help
423 Say yes here to support the Socionext Milbeaut
424 XDMAC device.
425
426config MMP_PDMA
427 tristate "MMP PDMA support"
428 depends on ARCH_MMP || ARCH_PXA || COMPILE_TEST
429 select DMA_ENGINE
430 help
431 Support the MMP PDMA engine for PXA and MMP platform.
432
433config MMP_TDMA
434 tristate "MMP Two-Channel DMA support"
435 depends on ARCH_MMP || COMPILE_TEST
436 select DMA_ENGINE
437 select GENERIC_ALLOCATOR
438 help
439 Support the MMP Two-Channel DMA engine.
440 This engine used for MMP Audio DMA and pxa910 SQU.
441
442config MOXART_DMA
443 tristate "MOXART DMA support"
444 depends on ARCH_MOXART
445 select DMA_ENGINE
446 select DMA_VIRTUAL_CHANNELS
447 help
448 Enable support for the MOXA ART SoC DMA controller.
449
450 Say Y here if you enabled MMP ADMA, otherwise say N.
451
452config MPC512X_DMA
453 tristate "Freescale MPC512x built-in DMA engine support"
454 depends on PPC_MPC512x || PPC_MPC831x
455 select DMA_ENGINE
456 help
457 Enable support for the Freescale MPC512x built-in DMA engine.
458
459config MV_XOR
460 bool "Marvell XOR engine support"
461 depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
462 select DMA_ENGINE
463 select DMA_ENGINE_RAID
464 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
465 help
466 Enable support for the Marvell XOR engine.
467
468config MV_XOR_V2
469 bool "Marvell XOR engine version 2 support "
470 depends on ARM64
471 select DMA_ENGINE
472 select DMA_ENGINE_RAID
473 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
474 select GENERIC_MSI_IRQ
475 help
476 Enable support for the Marvell version 2 XOR engine.
477
478 This engine provides acceleration for copy, XOR and RAID6
479 operations, and is available on Marvell Armada 7K and 8K
480 platforms.
481
482config MXS_DMA
483 bool "MXS DMA support"
484 depends on ARCH_MXS || ARCH_MXC || COMPILE_TEST
485 select STMP_DEVICE
486 select DMA_ENGINE
487 help
488 Support the MXS DMA engine. This engine including APBH-DMA
489 and APBX-DMA is integrated into some Freescale chips.
490
491config NBPFAXI_DMA
492 tristate "Renesas Type-AXI NBPF DMA support"
493 select DMA_ENGINE
494 depends on ARM || COMPILE_TEST
495 help
496 Support for "Type-AXI" NBPF DMA IPs from Renesas
497
498config OWL_DMA
499 tristate "Actions Semi Owl SoCs DMA support"
500 depends on ARCH_ACTIONS
501 select DMA_ENGINE
502 select DMA_VIRTUAL_CHANNELS
503 help
504 Enable support for the Actions Semi Owl SoCs DMA controller.
505
506config PCH_DMA
507 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
508 depends on PCI && (X86_32 || COMPILE_TEST)
509 select DMA_ENGINE
510 help
511 Enable support for Intel EG20T PCH DMA engine.
512
513 This driver also can be used for LAPIS Semiconductor IOH(Input/
514 Output Hub), ML7213, ML7223 and ML7831.
515 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
516 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
517 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
518 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
519
520config PL330_DMA
521 tristate "DMA API Driver for PL330"
522 select DMA_ENGINE
523 depends on ARM_AMBA
524 help
525 Select if your platform has one or more PL330 DMACs.
526 You need to provide platform specific settings via
527 platform_data for a dma-pl330 device.
528
529config PXA_DMA
530 bool "PXA DMA support"
531 depends on (ARCH_MMP || ARCH_PXA)
532 select DMA_ENGINE
533 select DMA_VIRTUAL_CHANNELS
534 help
535 Support the DMA engine for PXA. It is also compatible with MMP PDMA
536 platform. The internal DMA IP of all PXA variants is supported, with
537 16 to 32 channels for peripheral to memory or memory to memory
538 transfers.
539
540config PLX_DMA
541 tristate "PLX ExpressLane PEX Switch DMA Engine Support"
542 depends on PCI
543 select DMA_ENGINE
544 help
545 Some PLX ExpressLane PCI Switches support additional DMA engines.
546 These are exposed via extra functions on the switch's
547 upstream port. Each function exposes one DMA channel.
548
549config STE_DMA40
550 bool "ST-Ericsson DMA40 support"
551 depends on ARCH_U8500
552 select DMA_ENGINE
553 select SRAM
554 help
555 Support for ST-Ericsson DMA40 controller
556
557config ST_FDMA
558 tristate "ST FDMA dmaengine support"
559 depends on ARCH_STI
560 depends on REMOTEPROC
561 select ST_SLIM_REMOTEPROC
562 select DMA_ENGINE
563 select DMA_VIRTUAL_CHANNELS
564 help
565 Enable support for ST FDMA controller.
566 It supports 16 independent DMA channels, accepts up to 32 DMA requests
567
568 Say Y here if you have such a chipset.
569 If unsure, say N.
570
571config STM32_DMA
572 bool "STMicroelectronics STM32 DMA support"
573 depends on ARCH_STM32 || COMPILE_TEST
574 select DMA_ENGINE
575 select DMA_VIRTUAL_CHANNELS
576 help
577 Enable support for the on-chip DMA controller on STMicroelectronics
578 STM32 MCUs.
579 If you have a board based on such a MCU and wish to use DMA say Y
580 here.
581
582config STM32_DMAMUX
583 bool "STMicroelectronics STM32 dma multiplexer support"
584 depends on STM32_DMA || COMPILE_TEST
585 help
586 Enable support for the on-chip DMA multiplexer on STMicroelectronics
587 STM32 MCUs.
588 If you have a board based on such a MCU and wish to use DMAMUX say Y
589 here.
590
591config STM32_MDMA
592 bool "STMicroelectronics STM32 master dma support"
593 depends on ARCH_STM32 || COMPILE_TEST
594 depends on OF
595 select DMA_ENGINE
596 select DMA_VIRTUAL_CHANNELS
597 help
598 Enable support for the on-chip MDMA controller on STMicroelectronics
599 STM32 platforms.
600 If you have a board based on STM32 SoC and wish to use the master DMA
601 say Y here.
602
603config SPRD_DMA
604 tristate "Spreadtrum DMA support"
605 depends on ARCH_SPRD || COMPILE_TEST
606 select DMA_ENGINE
607 select DMA_VIRTUAL_CHANNELS
608 help
609 Enable support for the on-chip DMA controller on Spreadtrum platform.
610
611config TXX9_DMAC
612 tristate "Toshiba TXx9 SoC DMA support"
613 depends on MACH_TX49XX
614 select DMA_ENGINE
615 help
616 Support the TXx9 SoC internal DMA controller. This can be
617 integrated in chips such as the Toshiba TX4927/38/39.
618
619config TEGRA186_GPC_DMA
620 tristate "NVIDIA Tegra GPC DMA support"
621 depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT
622 depends on IOMMU_API
623 select DMA_ENGINE
624 select DMA_VIRTUAL_CHANNELS
625 help
626 Support for the NVIDIA Tegra General Purpose Central DMA controller.
627 The DMA controller has multiple DMA channels which can be configured
628 for different peripherals like UART, SPI, etc which are on APB bus.
629 This DMA controller transfers data from memory to peripheral FIFO
630 or vice versa. It also supports memory to memory data transfer.
631
632config TEGRA20_APB_DMA
633 tristate "NVIDIA Tegra20 APB DMA support"
634 depends on ARCH_TEGRA || COMPILE_TEST
635 select DMA_ENGINE
636 help
637 Support for the NVIDIA Tegra20 APB DMA controller driver. The
638 DMA controller is having multiple DMA channel which can be
639 configured for different peripherals like audio, UART, SPI,
640 I2C etc which is in APB bus.
641 This DMA controller transfers data from memory to peripheral fifo
642 or vice versa. It does not support memory to memory data transfer.
643
644config TEGRA210_ADMA
645 tristate "NVIDIA Tegra210 ADMA support"
646 depends on (ARCH_TEGRA_210_SOC || COMPILE_TEST)
647 select DMA_ENGINE
648 select DMA_VIRTUAL_CHANNELS
649 help
650 Support for the NVIDIA Tegra210 ADMA controller driver. The
651 DMA controller has multiple DMA channels and is used to service
652 various audio clients in the Tegra210 audio processing engine
653 (APE). This DMA controller transfers data from memory to
654 peripheral and vice versa. It does not support memory to
655 memory data transfer.
656
657config TIMB_DMA
658 tristate "Timberdale FPGA DMA support"
659 depends on MFD_TIMBERDALE || COMPILE_TEST
660 select DMA_ENGINE
661 help
662 Enable support for the Timberdale FPGA DMA engine.
663
664config UNIPHIER_MDMAC
665 tristate "UniPhier MIO DMAC"
666 depends on ARCH_UNIPHIER || COMPILE_TEST
667 depends on OF
668 select DMA_ENGINE
669 select DMA_VIRTUAL_CHANNELS
670 help
671 Enable support for the MIO DMAC (Media I/O DMA controller) on the
672 UniPhier platform. This DMA controller is used as the external
673 DMA engine of the SD/eMMC controllers of the LD4, Pro4, sLD8 SoCs.
674
675config UNIPHIER_XDMAC
676 tristate "UniPhier XDMAC support"
677 depends on ARCH_UNIPHIER || COMPILE_TEST
678 depends on OF
679 select DMA_ENGINE
680 select DMA_VIRTUAL_CHANNELS
681 help
682 Enable support for the XDMAC (external DMA controller) on the
683 UniPhier platform. This DMA controller can transfer data from
684 memory to memory, memory to peripheral and peripheral to memory.
685
686config XGENE_DMA
687 tristate "APM X-Gene DMA support"
688 depends on ARCH_XGENE || COMPILE_TEST
689 select DMA_ENGINE
690 select DMA_ENGINE_RAID
691 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
692 help
693 Enable support for the APM X-Gene SoC DMA engine.
694
695config XILINX_DMA
696 tristate "Xilinx AXI DMAS Engine"
697 depends on HAS_IOMEM
698 select DMA_ENGINE
699 help
700 Enable support for Xilinx AXI VDMA Soft IP.
701
702 AXI VDMA engine provides high-bandwidth direct memory access
703 between memory and AXI4-Stream video type target
704 peripherals including peripherals which support AXI4-
705 Stream Video Protocol. It has two stream interfaces/
706 channels, Memory Mapped to Stream (MM2S) and Stream to
707 Memory Mapped (S2MM) for the data transfers.
708 AXI CDMA engine provides high-bandwidth direct memory access
709 between a memory-mapped source address and a memory-mapped
710 destination address.
711 AXI DMA engine provides high-bandwidth one dimensional direct
712 memory access between memory and AXI4-Stream target peripherals.
713 AXI MCDMA engine provides high-bandwidth direct memory access
714 between memory and AXI4-Stream target peripherals. It provides
715 the scatter gather interface with multiple channels independent
716 configuration support.
717
718config XILINX_XDMA
719 tristate "Xilinx DMA/Bridge Subsystem DMA Engine"
720 depends on HAS_IOMEM
721 select DMA_ENGINE
722 select DMA_VIRTUAL_CHANNELS
723 select REGMAP_MMIO
724 help
725 Enable support for Xilinx DMA/Bridge Subsystem DMA engine. The DMA
726 provides high performance block data movement between Host memory
727 and the DMA subsystem. These direct memory transfers can be both in
728 the Host to Card (H2C) and Card to Host (C2H) transfers.
729 The core also provides up to 16 user interrupt wires that generate
730 interrupts to the host.
731
732config XILINX_ZYNQMP_DMA
733 tristate "Xilinx ZynqMP DMA Engine"
734 depends on ARCH_ZYNQ || MICROBLAZE || ARM64 || COMPILE_TEST
735 select DMA_ENGINE
736 help
737 Enable support for Xilinx ZynqMP DMA controller.
738
739config XILINX_ZYNQMP_DPDMA
740 tristate "Xilinx DPDMA Engine"
741 depends on HAS_IOMEM && OF
742 select DMA_ENGINE
743 select DMA_VIRTUAL_CHANNELS
744 help
745 Enable support for Xilinx ZynqMP DisplayPort DMA. Choose this option
746 if you have a Xilinx ZynqMP SoC with a DisplayPort subsystem. The
747 driver provides the dmaengine required by the DisplayPort subsystem
748 display driver.
749
750# driver files
751source "drivers/dma/bestcomm/Kconfig"
752
753source "drivers/dma/mediatek/Kconfig"
754
755source "drivers/dma/ptdma/Kconfig"
756
757source "drivers/dma/qcom/Kconfig"
758
759source "drivers/dma/dw/Kconfig"
760
761source "drivers/dma/dw-edma/Kconfig"
762
763source "drivers/dma/hsu/Kconfig"
764
765source "drivers/dma/sf-pdma/Kconfig"
766
767source "drivers/dma/sh/Kconfig"
768
769source "drivers/dma/ti/Kconfig"
770
771source "drivers/dma/fsl-dpaa2-qdma/Kconfig"
772
773source "drivers/dma/lgm/Kconfig"
774
775# clients
776comment "DMA Clients"
777 depends on DMA_ENGINE
778
779config ASYNC_TX_DMA
780 bool "Async_tx: Offload support for the async_tx api"
781 depends on DMA_ENGINE
782 help
783 This allows the async_tx api to take advantage of offload engines for
784 memcpy, memset, xor, and raid6 p+q operations. If your platform has
785 a dma engine that can perform raid operations and you have enabled
786 MD_RAID456 say Y.
787
788 If unsure, say N.
789
790config DMATEST
791 tristate "DMA Test client"
792 depends on DMA_ENGINE
793 select DMA_ENGINE_RAID
794 help
795 Simple DMA test client. Say N unless you're debugging a
796 DMA Device driver.
797
798config DMA_ENGINE_RAID
799 bool
800
801endif
1#
2# DMA engine configuration
3#
4
5menuconfig 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
16config 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
23config 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
32if DMADEVICES
33
34comment "DMA Devices"
35
36#core
37config ASYNC_TX_ENABLE_CHANNEL_SWITCH
38 bool
39
40config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
41 bool
42
43config DMA_ENGINE
44 bool
45
46config DMA_VIRTUAL_CHANNELS
47 tristate
48
49config DMA_ACPI
50 def_bool y
51 depends on ACPI
52
53config DMA_OF
54 def_bool y
55 depends on OF
56 select DMA_ENGINE
57
58#devices
59config 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 Platform has a PL08x DMAC device
66 which can provide DMA engine support
67
68config AMCC_PPC440SPE_ADMA
69 tristate "AMCC PPC440SPe ADMA support"
70 depends on 440SPe || 440SP
71 select DMA_ENGINE
72 select DMA_ENGINE_RAID
73 select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
74 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
75 help
76 Enable support for the AMCC PPC440SPe RAID engines.
77
78config AT_HDMAC
79 tristate "Atmel AHB DMA support"
80 depends on ARCH_AT91
81 select DMA_ENGINE
82 help
83 Support the Atmel AHB DMA controller.
84
85config AT_XDMAC
86 tristate "Atmel XDMA support"
87 depends on ARCH_AT91
88 select DMA_ENGINE
89 help
90 Support the Atmel XDMA controller.
91
92config AXI_DMAC
93 tristate "Analog Devices AXI-DMAC DMA support"
94 depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_SOCFPGA || COMPILE_TEST
95 select DMA_ENGINE
96 select DMA_VIRTUAL_CHANNELS
97 help
98 Enable support for the Analog Devices AXI-DMAC peripheral. This DMA
99 controller is often used in Analog Device's reference designs for FPGA
100 platforms.
101
102config COH901318
103 bool "ST-Ericsson COH901318 DMA support"
104 select DMA_ENGINE
105 depends on ARCH_U300
106 help
107 Enable support for ST-Ericsson COH 901 318 DMA.
108
109config DMA_BCM2835
110 tristate "BCM2835 DMA engine support"
111 depends on ARCH_BCM2835
112 select DMA_ENGINE
113 select DMA_VIRTUAL_CHANNELS
114
115config DMA_JZ4740
116 tristate "JZ4740 DMA support"
117 depends on MACH_JZ4740
118 select DMA_ENGINE
119 select DMA_VIRTUAL_CHANNELS
120
121config DMA_JZ4780
122 tristate "JZ4780 DMA support"
123 depends on MACH_JZ4780
124 select DMA_ENGINE
125 select DMA_VIRTUAL_CHANNELS
126 help
127 This selects support for the DMA controller in Ingenic JZ4780 SoCs.
128 If you have a board based on such a SoC and wish to use DMA for
129 devices which can use the DMA controller, say Y or M here.
130
131config DMA_OMAP
132 tristate "OMAP DMA support"
133 depends on ARCH_OMAP
134 select DMA_ENGINE
135 select DMA_VIRTUAL_CHANNELS
136 select TI_DMA_CROSSBAR if SOC_DRA7XX
137
138config DMA_SA11X0
139 tristate "SA-11x0 DMA support"
140 depends on ARCH_SA1100
141 select DMA_ENGINE
142 select DMA_VIRTUAL_CHANNELS
143 help
144 Support the DMA engine found on Intel StrongARM SA-1100 and
145 SA-1110 SoCs. This DMA engine can only be used with on-chip
146 devices.
147
148config DMA_SUN4I
149 tristate "Allwinner A10 DMA SoCs support"
150 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
151 default (MACH_SUN4I || MACH_SUN5I || MACH_SUN7I)
152 select DMA_ENGINE
153 select DMA_OF
154 select DMA_VIRTUAL_CHANNELS
155 help
156 Enable support for the DMA controller present in the sun4i,
157 sun5i and sun7i Allwinner ARM SoCs.
158
159config DMA_SUN6I
160 tristate "Allwinner A31 SoCs DMA support"
161 depends on MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
162 depends on RESET_CONTROLLER
163 select DMA_ENGINE
164 select DMA_VIRTUAL_CHANNELS
165 help
166 Support for the DMA engine first found in Allwinner A31 SoCs.
167
168config EP93XX_DMA
169 bool "Cirrus Logic EP93xx DMA support"
170 depends on ARCH_EP93XX
171 select DMA_ENGINE
172 help
173 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
174
175config FSL_DMA
176 tristate "Freescale Elo series DMA support"
177 depends on FSL_SOC
178 select DMA_ENGINE
179 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
180 ---help---
181 Enable support for the Freescale Elo series DMA controllers.
182 The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
183 EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
184 some Txxx and Bxxx parts.
185
186config FSL_EDMA
187 tristate "Freescale eDMA engine support"
188 depends on OF
189 select DMA_ENGINE
190 select DMA_VIRTUAL_CHANNELS
191 help
192 Support the Freescale eDMA engine with programmable channel
193 multiplexing capability for DMA request sources(slot).
194 This module can be found on Freescale Vybrid and LS-1 SoCs.
195
196config FSL_RAID
197 tristate "Freescale RAID engine Support"
198 depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH
199 select DMA_ENGINE
200 select DMA_ENGINE_RAID
201 ---help---
202 Enable support for Freescale RAID Engine. RAID Engine is
203 available on some QorIQ SoCs (like P5020/P5040). It has
204 the capability to offload memcpy, xor and pq computation
205 for raid5/6.
206
207config IMG_MDC_DMA
208 tristate "IMG MDC support"
209 depends on MIPS || COMPILE_TEST
210 depends on MFD_SYSCON
211 select DMA_ENGINE
212 select DMA_VIRTUAL_CHANNELS
213 help
214 Enable support for the IMG multi-threaded DMA controller (MDC).
215
216config IMX_DMA
217 tristate "i.MX DMA support"
218 depends on ARCH_MXC
219 select DMA_ENGINE
220 help
221 Support the i.MX DMA engine. This engine is integrated into
222 Freescale i.MX1/21/27 chips.
223
224config IMX_SDMA
225 tristate "i.MX SDMA support"
226 depends on ARCH_MXC
227 select DMA_ENGINE
228 help
229 Support the i.MX SDMA engine. This engine is integrated into
230 Freescale i.MX25/31/35/51/53/6 chips.
231
232config INTEL_IDMA64
233 tristate "Intel integrated DMA 64-bit support"
234 select DMA_ENGINE
235 select DMA_VIRTUAL_CHANNELS
236 help
237 Enable DMA support for Intel Low Power Subsystem such as found on
238 Intel Skylake PCH.
239
240config INTEL_IOATDMA
241 tristate "Intel I/OAT DMA support"
242 depends on PCI && X86_64
243 select DMA_ENGINE
244 select DMA_ENGINE_RAID
245 select DCA
246 help
247 Enable support for the Intel(R) I/OAT DMA engine present
248 in recent Intel Xeon chipsets.
249
250 Say Y here if you have such a chipset.
251
252 If unsure, say N.
253
254config INTEL_IOP_ADMA
255 tristate "Intel IOP ADMA support"
256 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
257 select DMA_ENGINE
258 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
259 help
260 Enable support for the Intel(R) IOP Series RAID engines.
261
262config INTEL_MIC_X100_DMA
263 tristate "Intel MIC X100 DMA Driver"
264 depends on 64BIT && X86 && INTEL_MIC_BUS
265 select DMA_ENGINE
266 help
267 This enables DMA support for the Intel Many Integrated Core
268 (MIC) family of PCIe form factor coprocessor X100 devices that
269 run a 64 bit Linux OS. This driver will be used by both MIC
270 host and card drivers.
271
272 If you are building host kernel with a MIC device or a card
273 kernel for a MIC device, then say M (recommended) or Y, else
274 say N. If unsure say N.
275
276 More information about the Intel MIC family as well as the Linux
277 OS and tools for MIC to use with this driver are available from
278 <http://software.intel.com/en-us/mic-developer>.
279
280config K3_DMA
281 tristate "Hisilicon K3 DMA support"
282 depends on ARCH_HI3xxx
283 select DMA_ENGINE
284 select DMA_VIRTUAL_CHANNELS
285 help
286 Support the DMA engine for Hisilicon K3 platform
287 devices.
288
289config LPC18XX_DMAMUX
290 bool "NXP LPC18xx/43xx DMA MUX for PL080"
291 depends on ARCH_LPC18XX || COMPILE_TEST
292 depends on OF && AMBA_PL08X
293 select MFD_SYSCON
294 help
295 Enable support for DMA on NXP LPC18xx/43xx platforms
296 with PL080 and multiplexed DMA request lines.
297
298config MMP_PDMA
299 bool "MMP PDMA support"
300 depends on (ARCH_MMP || ARCH_PXA)
301 select DMA_ENGINE
302 help
303 Support the MMP PDMA engine for PXA and MMP platform.
304
305config MMP_TDMA
306 bool "MMP Two-Channel DMA support"
307 depends on ARCH_MMP
308 select DMA_ENGINE
309 select MMP_SRAM
310 help
311 Support the MMP Two-Channel DMA engine.
312 This engine used for MMP Audio DMA and pxa910 SQU.
313 It needs sram driver under mach-mmp.
314
315config MOXART_DMA
316 tristate "MOXART DMA support"
317 depends on ARCH_MOXART
318 select DMA_ENGINE
319 select DMA_OF
320 select DMA_VIRTUAL_CHANNELS
321 help
322 Enable support for the MOXA ART SoC DMA controller.
323
324 Say Y here if you enabled MMP ADMA, otherwise say N.
325
326config MPC512X_DMA
327 tristate "Freescale MPC512x built-in DMA engine support"
328 depends on PPC_MPC512x || PPC_MPC831x
329 select DMA_ENGINE
330 ---help---
331 Enable support for the Freescale MPC512x built-in DMA engine.
332
333config MV_XOR
334 bool "Marvell XOR engine support"
335 depends on PLAT_ORION
336 select DMA_ENGINE
337 select DMA_ENGINE_RAID
338 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
339 ---help---
340 Enable support for the Marvell XOR engine.
341
342config MXS_DMA
343 bool "MXS DMA support"
344 depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q || SOC_IMX6UL
345 select STMP_DEVICE
346 select DMA_ENGINE
347 help
348 Support the MXS DMA engine. This engine including APBH-DMA
349 and APBX-DMA is integrated into Freescale
350 i.MX23/28/MX6Q/MX6DL/MX6UL chips.
351
352config MX3_IPU
353 bool "MX3x Image Processing Unit support"
354 depends on ARCH_MXC
355 select DMA_ENGINE
356 default y
357 help
358 If you plan to use the Image Processing unit in the i.MX3x, say
359 Y here. If unsure, select Y.
360
361config MX3_IPU_IRQS
362 int "Number of dynamically mapped interrupts for IPU"
363 depends on MX3_IPU
364 range 2 137
365 default 4
366 help
367 Out of 137 interrupt sources on i.MX31 IPU only very few are used.
368 To avoid bloating the irq_desc[] array we allocate a sufficient
369 number of IRQ slots and map them dynamically to specific sources.
370
371config NBPFAXI_DMA
372 tristate "Renesas Type-AXI NBPF DMA support"
373 select DMA_ENGINE
374 depends on ARM || COMPILE_TEST
375 help
376 Support for "Type-AXI" NBPF DMA IPs from Renesas
377
378config PCH_DMA
379 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
380 depends on PCI && (X86_32 || COMPILE_TEST)
381 select DMA_ENGINE
382 help
383 Enable support for Intel EG20T PCH DMA engine.
384
385 This driver also can be used for LAPIS Semiconductor IOH(Input/
386 Output Hub), ML7213, ML7223 and ML7831.
387 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
388 for MP(Media Phone) use and ML7831 IOH is for general purpose use.
389 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
390 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
391
392config PL330_DMA
393 tristate "DMA API Driver for PL330"
394 select DMA_ENGINE
395 depends on ARM_AMBA
396 help
397 Select if your platform has one or more PL330 DMACs.
398 You need to provide platform specific settings via
399 platform_data for a dma-pl330 device.
400
401config PXA_DMA
402 bool "PXA DMA support"
403 depends on (ARCH_MMP || ARCH_PXA)
404 select DMA_ENGINE
405 select DMA_VIRTUAL_CHANNELS
406 help
407 Support the DMA engine for PXA. It is also compatible with MMP PDMA
408 platform. The internal DMA IP of all PXA variants is supported, with
409 16 to 32 channels for peripheral to memory or memory to memory
410 transfers.
411
412config SIRF_DMA
413 tristate "CSR SiRFprimaII/SiRFmarco DMA support"
414 depends on ARCH_SIRF
415 select DMA_ENGINE
416 help
417 Enable support for the CSR SiRFprimaII DMA engine.
418
419config STE_DMA40
420 bool "ST-Ericsson DMA40 support"
421 depends on ARCH_U8500
422 select DMA_ENGINE
423 help
424 Support for ST-Ericsson DMA40 controller
425
426config STM32_DMA
427 bool "STMicroelectronics STM32 DMA support"
428 depends on ARCH_STM32
429 select DMA_ENGINE
430 select DMA_OF
431 select DMA_VIRTUAL_CHANNELS
432 help
433 Enable support for the on-chip DMA controller on STMicroelectronics
434 STM32 MCUs.
435 If you have a board based on such a MCU and wish to use DMA say Y or M
436 here.
437
438config S3C24XX_DMAC
439 bool "Samsung S3C24XX DMA support"
440 depends on ARCH_S3C24XX
441 select DMA_ENGINE
442 select DMA_VIRTUAL_CHANNELS
443 help
444 Support for the Samsung S3C24XX DMA controller driver. The
445 DMA controller is having multiple DMA channels which can be
446 configured for different peripherals like audio, UART, SPI.
447 The DMA controller can transfer data from memory to peripheral,
448 periphal to memory, periphal to periphal and memory to memory.
449
450config TXX9_DMAC
451 tristate "Toshiba TXx9 SoC DMA support"
452 depends on MACH_TX49XX || MACH_TX39XX
453 select DMA_ENGINE
454 help
455 Support the TXx9 SoC internal DMA controller. This can be
456 integrated in chips such as the Toshiba TX4927/38/39.
457
458config TEGRA20_APB_DMA
459 bool "NVIDIA Tegra20 APB DMA support"
460 depends on ARCH_TEGRA
461 select DMA_ENGINE
462 help
463 Support for the NVIDIA Tegra20 APB DMA controller driver. The
464 DMA controller is having multiple DMA channel which can be
465 configured for different peripherals like audio, UART, SPI,
466 I2C etc which is in APB bus.
467 This DMA controller transfers data from memory to peripheral fifo
468 or vice versa. It does not support memory to memory data transfer.
469
470config TIMB_DMA
471 tristate "Timberdale FPGA DMA support"
472 depends on MFD_TIMBERDALE
473 select DMA_ENGINE
474 help
475 Enable support for the Timberdale FPGA DMA engine.
476
477config TI_CPPI41
478 tristate "AM33xx CPPI41 DMA support"
479 depends on ARCH_OMAP
480 select DMA_ENGINE
481 help
482 The Communications Port Programming Interface (CPPI) 4.1 DMA engine
483 is currently used by the USB driver on AM335x platforms.
484
485config TI_DMA_CROSSBAR
486 bool
487
488config TI_EDMA
489 bool "TI EDMA support"
490 depends on ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE
491 select DMA_ENGINE
492 select DMA_VIRTUAL_CHANNELS
493 select TI_DMA_CROSSBAR if ARCH_OMAP
494 default n
495 help
496 Enable support for the TI EDMA controller. This DMA
497 engine is found on TI DaVinci and AM33xx parts.
498
499config XGENE_DMA
500 tristate "APM X-Gene DMA support"
501 depends on ARCH_XGENE || COMPILE_TEST
502 select DMA_ENGINE
503 select DMA_ENGINE_RAID
504 select ASYNC_TX_ENABLE_CHANNEL_SWITCH
505 help
506 Enable support for the APM X-Gene SoC DMA engine.
507
508config XILINX_VDMA
509 tristate "Xilinx AXI VDMA Engine"
510 depends on (ARCH_ZYNQ || MICROBLAZE)
511 select DMA_ENGINE
512 help
513 Enable support for Xilinx AXI VDMA Soft IP.
514
515 This engine provides high-bandwidth direct memory access
516 between memory and AXI4-Stream video type target
517 peripherals including peripherals which support AXI4-
518 Stream Video Protocol. It has two stream interfaces/
519 channels, Memory Mapped to Stream (MM2S) and Stream to
520 Memory Mapped (S2MM) for the data transfers.
521
522config ZX_DMA
523 tristate "ZTE ZX296702 DMA support"
524 depends on ARCH_ZX
525 select DMA_ENGINE
526 select DMA_VIRTUAL_CHANNELS
527 help
528 Support the DMA engine for ZTE ZX296702 platform devices.
529
530
531# driver files
532source "drivers/dma/bestcomm/Kconfig"
533
534source "drivers/dma/qcom/Kconfig"
535
536source "drivers/dma/dw/Kconfig"
537
538source "drivers/dma/hsu/Kconfig"
539
540source "drivers/dma/sh/Kconfig"
541
542# clients
543comment "DMA Clients"
544 depends on DMA_ENGINE
545
546config ASYNC_TX_DMA
547 bool "Async_tx: Offload support for the async_tx api"
548 depends on DMA_ENGINE
549 help
550 This allows the async_tx api to take advantage of offload engines for
551 memcpy, memset, xor, and raid6 p+q operations. If your platform has
552 a dma engine that can perform raid operations and you have enabled
553 MD_RAID456 say Y.
554
555 If unsure, say N.
556
557config DMATEST
558 tristate "DMA Test client"
559 depends on DMA_ENGINE
560 help
561 Simple DMA test client. Say N unless you're debugging a
562 DMA Device driver.
563
564config DMA_ENGINE_RAID
565 bool
566
567endif