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_AT91SAM9RL || ARCH_AT91SAM9G45
  95         select DMA_ENGINE
  96         help
  97           Support the Atmel AHB DMA controller.  This can be integrated in
  98           chips such as the Atmel AT91SAM9RL.
  99
 100 config FSL_DMA
 101         tristate "Freescale Elo and Elo Plus DMA support"
 102         depends on FSL_SOC
 103         select DMA_ENGINE
 104         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 105         ---help---
 106           Enable support for the Freescale Elo and Elo Plus DMA controllers.
 107           The Elo is the DMA controller on some 82xx and 83xx parts, and the
 108           Elo Plus is the DMA controller on 85xx and 86xx parts.
 109
 110 config MPC512X_DMA
 111         tristate "Freescale MPC512x built-in DMA engine support"
 112         depends on PPC_MPC512x || PPC_MPC831x
 113         select DMA_ENGINE
 114         ---help---
 115           Enable support for the Freescale MPC512x built-in DMA engine.
 116
 117 config MV_XOR
 118         bool "Marvell XOR engine support"
 119         depends on PLAT_ORION
 120         select DMA_ENGINE
 121         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 122         ---help---
 123           Enable support for the Marvell XOR engine.
 124
 125 config MX3_IPU
 126         bool "MX3x Image Processing Unit support"
 127         depends on ARCH_MX3
 128         select DMA_ENGINE
 129         default y
 130         help
 131           If you plan to use the Image Processing unit in the i.MX3x, say
 132           Y here. If unsure, select Y.
 133
 134 config MX3_IPU_IRQS
 135         int "Number of dynamically mapped interrupts for IPU"
 136         depends on MX3_IPU
 137         range 2 137
 138         default 4
 139         help
 140           Out of 137 interrupt sources on i.MX31 IPU only very few are used.
 141           To avoid bloating the irq_desc[] array we allocate a sufficient
 142           number of IRQ slots and map them dynamically to specific sources.
 143
 144 config TXX9_DMAC
 145         tristate "Toshiba TXx9 SoC DMA support"
 146         depends on MACH_TX49XX || MACH_TX39XX
 147         select DMA_ENGINE
 148         help
 149           Support the TXx9 SoC internal DMA controller.  This can be
 150           integrated in chips such as the Toshiba TX4927/38/39.
 151
 152 config SH_DMAE
 153         tristate "Renesas SuperH DMAC support"
 154         depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
 155         depends on !SH_DMA_API
 156         select DMA_ENGINE
 157         help
 158           Enable support for the Renesas SuperH DMA controllers.
 159
 160 config COH901318
 161         bool "ST-Ericsson COH901318 DMA support"
 162         select DMA_ENGINE
 163         depends on ARCH_U300
 164         help
 165           Enable support for ST-Ericsson COH 901 318 DMA.
 166
 167 config STE_DMA40
 168         bool "ST-Ericsson DMA40 support"
 169         depends on ARCH_U8500
 170         select DMA_ENGINE
 171         help
 172           Support for ST-Ericsson DMA40 controller
 173
 174 config AMCC_PPC440SPE_ADMA
 175         tristate "AMCC PPC440SPe ADMA support"
 176         depends on 440SPe || 440SP
 177         select DMA_ENGINE
 178         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 179         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 180         help
 181           Enable support for the AMCC PPC440SPe RAID engines.
 182
 183 config TIMB_DMA
 184         tristate "Timberdale FPGA DMA support"
 185         depends on MFD_TIMBERDALE || HAS_IOMEM
 186         select DMA_ENGINE
 187         help
 188           Enable support for the Timberdale FPGA DMA engine.
 189
 190 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 191         bool
 192
 193 config PL330_DMA
 194         tristate "DMA API Driver for PL330"
 195         select DMA_ENGINE
 196         depends on PL330
 197         help
 198           Select if your platform has one or more PL330 DMACs.
 199           You need to provide platform specific settings via
 200           platform_data for a dma-pl330 device.
 201
 202 config PCH_DMA
 203         tristate "Intel EG20T PCH / OKI Semi IOH(ML7213/ML7223) DMA support"
 204         depends on PCI && X86
 205         select DMA_ENGINE
 206         help
 207           Enable support for Intel EG20T PCH DMA engine.
 208
 209           This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
 210           Output Hub), ML7213 and ML7223.
 211           ML7213 IOH is for IVI(In-Vehicle Infotainment) use and ML7223 IOH is
 212           for MP(Media Phone) use.
 213           ML7213/ML7223 is companion chip for Intel Atom E6xx series.
 214           ML7213/ML7223 is completely compatible for Intel EG20T PCH.
 215
 216 config IMX_SDMA
 217         tristate "i.MX SDMA support"
 218         depends on ARCH_MX25 || ARCH_MX3 || ARCH_MX5
 219         select DMA_ENGINE
 220         help
 221           Support the i.MX SDMA engine. This engine is integrated into
 222           Freescale i.MX25/31/35/51 chips.
 223
 224 config IMX_DMA
 225         tristate "i.MX DMA support"
 226         depends on IMX_HAVE_DMA_V1
 227         select DMA_ENGINE
 228         help
 229           Support the i.MX DMA engine. This engine is integrated into
 230           Freescale i.MX1/21/27 chips.
 231
 232 config MXS_DMA
 233         bool "MXS DMA support"
 234         depends on SOC_IMX23 || SOC_IMX28
 235         select DMA_ENGINE
 236         help
 237           Support the MXS DMA engine. This engine including APBH-DMA
 238           and APBX-DMA is integrated into Freescale i.MX23/28 chips.
 239
 240 config EP93XX_DMA
 241         bool "Cirrus Logic EP93xx DMA support"
 242         depends on ARCH_EP93XX
 243         select DMA_ENGINE
 244         help
 245           Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
 246
 247 config DMA_ENGINE
 248         bool
 249
 250 comment "DMA Clients"
 251         depends on DMA_ENGINE
 252
 253 config NET_DMA
 254         bool "Network: TCP receive copy offload"
 255         depends on DMA_ENGINE && NET
 256         default (INTEL_IOATDMA || FSL_DMA)
 257         help
 258           This enables the use of DMA engines in the network stack to
 259           offload receive copy-to-user operations, freeing CPU cycles.
 260
 261           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
 262           say N.
 263
 264 config ASYNC_TX_DMA
 265         bool "Async_tx: Offload support for the async_tx api"
 266         depends on DMA_ENGINE
 267         help
 268           This allows the async_tx api to take advantage of offload engines for
 269           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 270           a dma engine that can perform raid operations and you have enabled
 271           MD_RAID456 say Y.
 272
 273           If unsure, say N.
 274
 275 config DMATEST
 276         tristate "DMA Test client"
 277         depends on DMA_ENGINE
 278         help
 279           Simple DMA test client. Say N unless you're debugging a
 280           DMA Device driver.
 281
 282 endif