drivers/dma/Kconfig

   1 #
   2 # DMA engine configuration
   3 #
   4
   5 menuconfig DMADEVICES
   6         bool "DMA Engine support"
   7         depends on HAS_DMA
   8         help
   9           DMA engines can do asynchronous data transfers without
  10           involving the host CPU.  Currently, this framework can be
  11           used to offload memory copies in the network stack and
  12           RAID operations in the MD driver.  This menu only presents
  13           DMA Device drivers supported by the configured arch, it may
  14           be empty in some cases.
  15
  16 config DMADEVICES_DEBUG
  17         bool "DMA Engine debugging"
  18         depends on DMADEVICES != n
  19         help
  20           This is an option for use by developers; most people should
  21           say N here.  This enables DMA engine core and driver debugging.
  22
  23 config DMADEVICES_VDEBUG
  24         bool "DMA Engine verbose debugging"
  25         depends on DMADEVICES_DEBUG != n
  26         help
  27           This is an option for use by developers; most people should
  28           say N here.  This enables deeper (more verbose) debugging of
  29           the DMA engine core and drivers.
  30
  31
  32 if DMADEVICES
  33
  34 comment "DMA Devices"
  35
  36 config 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
  49 config ASYNC_TX_ENABLE_CHANNEL_SWITCH
  50         bool
  51
  52 config AMBA_PL08X
  53         bool "ARM PrimeCell PL080 or PL081 support"
  54         depends on ARM_AMBA && EXPERIMENTAL
  55         select DMA_ENGINE
  56         help
  57           Platform has a PL08x DMAC device
  58           which can provide DMA engine support
  59
  60 config INTEL_IOATDMA
  61         tristate "Intel I/OAT DMA support"
  62         depends on PCI && X86
  63         select DMA_ENGINE
  64         select DCA
  65         select ASYNC_TX_DISABLE_PQ_VAL_DMA
  66         select ASYNC_TX_DISABLE_XOR_VAL_DMA
  67         help
  68           Enable support for the Intel(R) I/OAT DMA engine present
  69           in recent Intel Xeon chipsets.
  70
  71           Say Y here if you have such a chipset.
  72
  73           If unsure, say N.
  74
  75 config INTEL_IOP_ADMA
  76         tristate "Intel IOP ADMA support"
  77         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  78         select DMA_ENGINE
  79         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
  80         help
  81           Enable support for the Intel(R) IOP Series RAID engines.
  82
  83 config DW_DMAC
  84         tristate "Synopsys DesignWare AHB DMA support"
  85         depends on HAVE_CLK
  86         select DMA_ENGINE
  87         default y if CPU_AT32AP7000
  88         help
  89           Support the Synopsys DesignWare AHB DMA controller.  This
  90           can be integrated in chips such as the Atmel AT32ap7000.
  91
  92 config AT_HDMAC
  93         tristate "Atmel AHB DMA support"
  94         depends on ARCH_AT91
  95         select DMA_ENGINE
  96         help
  97           Support the Atmel AHB DMA controller.
  98
  99 config FSL_DMA
 100         tristate "Freescale Elo and Elo Plus DMA support"
 101         depends on FSL_SOC
 102         select DMA_ENGINE
 103         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 104         ---help---
 105           Enable support for the Freescale Elo and Elo Plus DMA controllers.
 106           The Elo is the DMA controller on some 82xx and 83xx parts, and the
 107           Elo Plus is the DMA controller on 85xx and 86xx parts.
 108
 109 config MPC512X_DMA
 110         tristate "Freescale MPC512x built-in DMA engine support"
 111         depends on PPC_MPC512x || PPC_MPC831x
 112         select DMA_ENGINE
 113         ---help---
 114           Enable support for the Freescale MPC512x built-in DMA engine.
 115
 116 config MV_XOR
 117         bool "Marvell XOR engine support"
 118         depends on PLAT_ORION
 119         select DMA_ENGINE
 120         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 121         ---help---
 122           Enable support for the Marvell XOR engine.
 123
 124 config MX3_IPU
 125         bool "MX3x Image Processing Unit support"
 126         depends on ARCH_MXC
 127         select DMA_ENGINE
 128         default y
 129         help
 130           If you plan to use the Image Processing unit in the i.MX3x, say
 131           Y here. If unsure, select Y.
 132
 133 config MX3_IPU_IRQS
 134         int "Number of dynamically mapped interrupts for IPU"
 135         depends on MX3_IPU
 136         range 2 137
 137         default 4
 138         help
 139           Out of 137 interrupt sources on i.MX31 IPU only very few are used.
 140           To avoid bloating the irq_desc[] array we allocate a sufficient
 141           number of IRQ slots and map them dynamically to specific sources.
 142
 143 config TXX9_DMAC
 144         tristate "Toshiba TXx9 SoC DMA support"
 145         depends on MACH_TX49XX || MACH_TX39XX
 146         select DMA_ENGINE
 147         help
 148           Support the TXx9 SoC internal DMA controller.  This can be
 149           integrated in chips such as the Toshiba TX4927/38/39.
 150
 151 config TEGRA20_APB_DMA
 152         bool "NVIDIA Tegra20 APB DMA support"
 153         depends on ARCH_TEGRA
 154         select DMA_ENGINE
 155         help
 156           Support for the NVIDIA Tegra20 APB DMA controller driver. The
 157           DMA controller is having multiple DMA channel which can be
 158           configured for different peripherals like audio, UART, SPI,
 159           I2C etc which is in APB bus.
 160           This DMA controller transfers data from memory to peripheral fifo
 161           or vice versa. It does not support memory to memory data transfer.
 162
 163
 164
 165 config SH_DMAE
 166         tristate "Renesas SuperH DMAC support"
 167         depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
 168         depends on !SH_DMA_API
 169         select DMA_ENGINE
 170         help
 171           Enable support for the Renesas SuperH DMA controllers.
 172
 173 config COH901318
 174         bool "ST-Ericsson COH901318 DMA support"
 175         select DMA_ENGINE
 176         depends on ARCH_U300
 177         help
 178           Enable support for ST-Ericsson COH 901 318 DMA.
 179
 180 config STE_DMA40
 181         bool "ST-Ericsson DMA40 support"
 182         depends on ARCH_U8500
 183         select DMA_ENGINE
 184         help
 185           Support for ST-Ericsson DMA40 controller
 186
 187 config AMCC_PPC440SPE_ADMA
 188         tristate "AMCC PPC440SPe ADMA support"
 189         depends on 440SPe || 440SP
 190         select DMA_ENGINE
 191         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 192         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 193         help
 194           Enable support for the AMCC PPC440SPe RAID engines.
 195
 196 config TIMB_DMA
 197         tristate "Timberdale FPGA DMA support"
 198         depends on MFD_TIMBERDALE || HAS_IOMEM
 199         select DMA_ENGINE
 200         help
 201           Enable support for the Timberdale FPGA DMA engine.
 202
 203 config SIRF_DMA
 204         tristate "CSR SiRFprimaII DMA support"
 205         depends on ARCH_PRIMA2
 206         select DMA_ENGINE
 207         help
 208           Enable support for the CSR SiRFprimaII DMA engine.
 209
 210 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 211         bool
 212
 213 config PL330_DMA
 214         tristate "DMA API Driver for PL330"
 215         select DMA_ENGINE
 216         depends on ARM_AMBA
 217         help
 218           Select if your platform has one or more PL330 DMACs.
 219           You need to provide platform specific settings via
 220           platform_data for a dma-pl330 device.
 221
 222 config PCH_DMA
 223         tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
 224         depends on PCI && X86
 225         select DMA_ENGINE
 226         help
 227           Enable support for Intel EG20T PCH DMA engine.
 228
 229           This driver also can be used for LAPIS Semiconductor IOH(Input/
 230           Output Hub), ML7213, ML7223 and ML7831.
 231           ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
 232           for MP(Media Phone) use and ML7831 IOH is for general purpose use.
 233           ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 234           ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 235
 236 config IMX_SDMA
 237         tristate "i.MX SDMA support"
 238         depends on ARCH_MXC
 239         select DMA_ENGINE
 240         help
 241           Support the i.MX SDMA engine. This engine is integrated into
 242           Freescale i.MX25/31/35/51/53 chips.
 243
 244 config IMX_DMA
 245         tristate "i.MX DMA support"
 246         depends on ARCH_MXC
 247         select DMA_ENGINE
 248         help
 249           Support the i.MX DMA engine. This engine is integrated into
 250           Freescale i.MX1/21/27 chips.
 251
 252 config MXS_DMA
 253         bool "MXS DMA support"
 254         depends on SOC_IMX23 || SOC_IMX28 || SOC_IMX6Q
 255         select STMP_DEVICE
 256         select DMA_ENGINE
 257         help
 258           Support the MXS DMA engine. This engine including APBH-DMA
 259           and APBX-DMA is integrated into Freescale i.MX23/28 chips.
 260
 261 config EP93XX_DMA
 262         bool "Cirrus Logic EP93xx DMA support"
 263         depends on ARCH_EP93XX
 264         select DMA_ENGINE
 265         help
 266           Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
 267
 268 config DMA_SA11X0
 269         tristate "SA-11x0 DMA support"
 270         depends on ARCH_SA1100
 271         select DMA_ENGINE
 272         help
 273           Support the DMA engine found on Intel StrongARM SA-1100 and
 274           SA-1110 SoCs.  This DMA engine can only be used with on-chip
 275           devices.
 276
 277 config MMP_TDMA
 278         bool "MMP Two-Channel DMA support"
 279         depends on ARCH_MMP
 280         select DMA_ENGINE
 281         help
 282           Support the MMP Two-Channel DMA engine.
 283           This engine used for MMP Audio DMA and pxa910 SQU.
 284
 285           Say Y here if you enabled MMP ADMA, otherwise say N.
 286
 287 config DMA_ENGINE
 288         bool
 289
 290 comment "DMA Clients"
 291         depends on DMA_ENGINE
 292
 293 config NET_DMA
 294         bool "Network: TCP receive copy offload"
 295         depends on DMA_ENGINE && NET
 296         default (INTEL_IOATDMA || FSL_DMA)
 297         help
 298           This enables the use of DMA engines in the network stack to
 299           offload receive copy-to-user operations, freeing CPU cycles.
 300
 301           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
 302           say N.
 303
 304 config ASYNC_TX_DMA
 305         bool "Async_tx: Offload support for the async_tx api"
 306         depends on DMA_ENGINE
 307         help
 308           This allows the async_tx api to take advantage of offload engines for
 309           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 310           a dma engine that can perform raid operations and you have enabled
 311           MD_RAID456 say Y.
 312
 313           If unsure, say N.
 314
 315 config DMATEST
 316         tristate "DMA Test client"
 317         depends on DMA_ENGINE
 318         help
 319           Simple DMA test client. Say N unless you're debugging a
 320           DMA Device driver.
 321
 322 endif