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 36config INTEL_MID_DMAC 37 tristate "Intel MID DMA support for Peripheral DMA controllers" 38 depends on PCI && X86 39 select DMA_ENGINE 40 default n 41 help 42 Enable support for the Intel(R) MID DMA engine present 43 in Intel MID chipsets. 44 45 Say Y here if you have such a chipset. 46 47 If unsure, say N. 48 49config ASYNC_TX_ENABLE_CHANNEL_SWITCH 50 bool 51 52config AMBA_PL08X 53 bool "ARM PrimeCell PL080 or PL081 support" 54 depends on ARM_AMBA && EXPERIMENTAL 55 select DMA_ENGINE 56 select DMA_VIRTUAL_CHANNELS 57 help 58 Platform has a PL08x DMAC device 59 which can provide DMA engine support 60 61config INTEL_IOATDMA 62 tristate "Intel I/OAT DMA support" 63 depends on PCI && X86 64 select DMA_ENGINE 65 select DCA 66 select ASYNC_TX_DISABLE_PQ_VAL_DMA 67 select ASYNC_TX_DISABLE_XOR_VAL_DMA 68 help 69 Enable support for the Intel(R) I/OAT DMA engine present 70 in recent Intel Xeon chipsets. 71 72 Say Y here if you have such a chipset. 73 74 If unsure, say N. 75 76config INTEL_IOP_ADMA 77 tristate "Intel IOP ADMA support" 78 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX 79 select DMA_ENGINE 80 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 81 help 82 Enable support for the Intel(R) IOP Series RAID engines. 83 84config DW_DMAC 85 tristate "Synopsys DesignWare AHB DMA support" 86 depends on HAVE_CLK 87 select DMA_ENGINE 88 default y if CPU_AT32AP7000 89 help 90 Support the Synopsys DesignWare AHB DMA controller. This 91 can be integrated in chips such as the Atmel AT32ap7000. 92 93config DW_DMAC_BIG_ENDIAN_IO 94 bool "Use big endian I/O register access" 95 default y if AVR32 96 depends on DW_DMAC 97 help 98 Say yes here to use big endian I/O access when reading and writing 99 to the DMA controller registers. This is needed on some platforms, 100 like the Atmel AVR32 architecture. 101 102 If unsure, use the default setting. 103 104config AT_HDMAC 105 tristate "Atmel AHB DMA support" 106 depends on ARCH_AT91 107 select DMA_ENGINE 108 help 109 Support the Atmel AHB DMA controller. 110 111config FSL_DMA 112 tristate "Freescale Elo and Elo Plus DMA support" 113 depends on FSL_SOC 114 select DMA_ENGINE 115 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 116 ---help--- 117 Enable support for the Freescale Elo and Elo Plus DMA controllers. 118 The Elo is the DMA controller on some 82xx and 83xx parts, and the 119 Elo Plus is the DMA controller on 85xx and 86xx parts. 120 121config MPC512X_DMA 122 tristate "Freescale MPC512x built-in DMA engine support" 123 depends on PPC_MPC512x || PPC_MPC831x 124 select DMA_ENGINE 125 ---help--- 126 Enable support for the Freescale MPC512x built-in DMA engine. 127 128config MV_XOR 129 bool "Marvell XOR engine support" 130 depends on PLAT_ORION 131 select DMA_ENGINE 132 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 133 ---help--- 134 Enable support for the Marvell XOR engine. 135 136config MX3_IPU 137 bool "MX3x Image Processing Unit support" 138 depends on ARCH_MXC 139 select DMA_ENGINE 140 default y 141 help 142 If you plan to use the Image Processing unit in the i.MX3x, say 143 Y here. If unsure, select Y. 144 145config MX3_IPU_IRQS 146 int "Number of dynamically mapped interrupts for IPU" 147 depends on MX3_IPU 148 range 2 137 149 default 4 150 help 151 Out of 137 interrupt sources on i.MX31 IPU only very few are used. 152 To avoid bloating the irq_desc[] array we allocate a sufficient 153 number of IRQ slots and map them dynamically to specific sources. 154 155config TXX9_DMAC 156 tristate "Toshiba TXx9 SoC DMA support" 157 depends on MACH_TX49XX || MACH_TX39XX 158 select DMA_ENGINE 159 help 160 Support the TXx9 SoC internal DMA controller. This can be 161 integrated in chips such as the Toshiba TX4927/38/39. 162 163config TEGRA20_APB_DMA 164 bool "NVIDIA Tegra20 APB DMA support" 165 depends on ARCH_TEGRA 166 select DMA_ENGINE 167 help 168 Support for the NVIDIA Tegra20 APB DMA controller driver. The 169 DMA controller is having multiple DMA channel which can be 170 configured for different peripherals like audio, UART, SPI, 171 I2C etc which is in APB bus. 172 This DMA controller transfers data from memory to peripheral fifo 173 or vice versa. It does not support memory to memory data transfer. 174 175 176 177config SH_DMAE 178 tristate "Renesas SuperH DMAC support" 179 depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE) 180 depends on !SH_DMA_API 181 select DMA_ENGINE 182 help 183 Enable support for the Renesas SuperH DMA controllers. 184 185config COH901318 186 bool "ST-Ericsson COH901318 DMA support" 187 select DMA_ENGINE 188 depends on ARCH_U300 189 help 190 Enable support for ST-Ericsson COH 901 318 DMA. 191 192config STE_DMA40 193 bool "ST-Ericsson DMA40 support" 194 depends on ARCH_U8500 195 select DMA_ENGINE 196 help 197 Support for ST-Ericsson DMA40 controller 198 199config AMCC_PPC440SPE_ADMA 200 tristate "AMCC PPC440SPe ADMA support" 201 depends on 440SPe || 440SP 202 select DMA_ENGINE 203 select ARCH_HAS_ASYNC_TX_FIND_CHANNEL 204 select ASYNC_TX_ENABLE_CHANNEL_SWITCH 205 help 206 Enable support for the AMCC PPC440SPe RAID engines. 207 208config TIMB_DMA 209 tristate "Timberdale FPGA DMA support" 210 depends on MFD_TIMBERDALE || HAS_IOMEM 211 select DMA_ENGINE 212 help 213 Enable support for the Timberdale FPGA DMA engine. 214 215config SIRF_DMA 216 tristate "CSR SiRFprimaII DMA support" 217 depends on ARCH_PRIMA2 218 select DMA_ENGINE 219 help 220 Enable support for the CSR SiRFprimaII DMA engine. 221 222config TI_EDMA 223 tristate "TI EDMA support" 224 depends on ARCH_DAVINCI 225 select DMA_ENGINE 226 select DMA_VIRTUAL_CHANNELS 227 default n 228 help 229 Enable support for the TI EDMA controller. This DMA 230 engine is found on TI DaVinci and AM33xx parts. 231 232config ARCH_HAS_ASYNC_TX_FIND_CHANNEL 233 bool 234 235config PL330_DMA 236 tristate "DMA API Driver for PL330" 237 select DMA_ENGINE 238 depends on ARM_AMBA 239 help 240 Select if your platform has one or more PL330 DMACs. 241 You need to provide platform specific settings via 242 platform_data for a dma-pl330 device. 243 244config PCH_DMA 245 tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA" 246 depends on PCI && X86 247 select DMA_ENGINE 248 help 249 Enable support for Intel EG20T PCH DMA engine. 250 251 This driver also can be used for LAPIS Semiconductor IOH(Input/ 252 Output Hub), ML7213, ML7223 and ML7831. 253 ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is 254 for MP(Media Phone) use and ML7831 IOH is for general purpose use. 255 ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. 256 ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. 257 258config IMX_SDMA 259 tristate "i.MX SDMA support" 260 depends on ARCH_MXC 261 select DMA_ENGINE 262 help 263 Support the i.MX SDMA engine. This engine is integrated into 264 Freescale i.MX25/31/35/51/53 chips. 265 266config IMX_DMA 267 tristate "i.MX DMA support" 268 depends on ARCH_MXC 269 select DMA_ENGINE 270 help 271 Support the i.MX DMA engine. This engine is integrated into 272 Freescale i.MX1/21/27 chips. 273 274config MXS_DMA 275 bool "MXS DMA support" 276 depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q 277 select STMP_DEVICE 278 select DMA_ENGINE 279 help 280 Support the MXS DMA engine. This engine including APBH-DMA 281 and APBX-DMA is integrated into Freescale i.MX23/28 chips. 282 283config EP93XX_DMA 284 bool "Cirrus Logic EP93xx DMA support" 285 depends on ARCH_EP93XX 286 select DMA_ENGINE 287 help 288 Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller. 289 290config DMA_SA11X0 291 tristate "SA-11x0 DMA support" 292 depends on ARCH_SA1100 293 select DMA_ENGINE 294 select DMA_VIRTUAL_CHANNELS 295 help 296 Support the DMA engine found on Intel StrongARM SA-1100 and 297 SA-1110 SoCs. This DMA engine can only be used with on-chip 298 devices. 299 300config MMP_TDMA 301 bool "MMP Two-Channel DMA support" 302 depends on ARCH_MMP 303 select DMA_ENGINE 304 help 305 Support the MMP Two-Channel DMA engine. 306 This engine used for MMP Audio DMA and pxa910 SQU. 307 308 Say Y here if you enabled MMP ADMA, otherwise say N. 309 310config DMA_OMAP 311 tristate "OMAP DMA support" 312 depends on ARCH_OMAP 313 select DMA_ENGINE 314 select DMA_VIRTUAL_CHANNELS 315 316config MMP_PDMA 317 bool "MMP PDMA support" 318 depends on (ARCH_MMP || ARCH_PXA) 319 select DMA_ENGINE 320 help 321 Support the MMP PDMA engine for PXA and MMP platfrom. 322 323config DMA_ENGINE 324 bool 325 326config DMA_VIRTUAL_CHANNELS 327 tristate 328 329comment "DMA Clients" 330 depends on DMA_ENGINE 331 332config NET_DMA 333 bool "Network: TCP receive copy offload" 334 depends on DMA_ENGINE && NET 335 default (INTEL_IOATDMA || FSL_DMA) 336 help 337 This enables the use of DMA engines in the network stack to 338 offload receive copy-to-user operations, freeing CPU cycles. 339 340 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise 341 say N. 342 343config ASYNC_TX_DMA 344 bool "Async_tx: Offload support for the async_tx api" 345 depends on DMA_ENGINE 346 help 347 This allows the async_tx api to take advantage of offload engines for 348 memcpy, memset, xor, and raid6 p+q operations. If your platform has 349 a dma engine that can perform raid operations and you have enabled 350 MD_RAID456 say Y. 351 352 If unsure, say N. 353 354config DMATEST 355 tristate "DMA Test client" 356 depends on DMA_ENGINE 357 help 358 Simple DMA test client. Say N unless you're debugging a 359 DMA Device driver. 360 361endif 362