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 SH_DMAE
 152         tristate "Renesas SuperH DMAC support"
 153         depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
 154         depends on !SH_DMA_API
 155         select DMA_ENGINE
 156         help
 157           Enable support for the Renesas SuperH DMA controllers.
 158
 159 config COH901318
 160         bool "ST-Ericsson COH901318 DMA support"
 161         select DMA_ENGINE
 162         depends on ARCH_U300
 163         help
 164           Enable support for ST-Ericsson COH 901 318 DMA.
 165
 166 config STE_DMA40
 167         bool "ST-Ericsson DMA40 support"
 168         depends on ARCH_U8500
 169         select DMA_ENGINE
 170         help
 171           Support for ST-Ericsson DMA40 controller
 172
 173 config AMCC_PPC440SPE_ADMA
 174         tristate "AMCC PPC440SPe ADMA support"
 175         depends on 440SPe || 440SP
 176         select DMA_ENGINE
 177         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 178         select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 179         help
 180           Enable support for the AMCC PPC440SPe RAID engines.
 181
 182 config TIMB_DMA
 183         tristate "Timberdale FPGA DMA support"
 184         depends on MFD_TIMBERDALE || HAS_IOMEM
 185         select DMA_ENGINE
 186         help
 187           Enable support for the Timberdale FPGA DMA engine.
 188
 189 config SIRF_DMA
 190         tristate "CSR SiRFprimaII DMA support"
 191         depends on ARCH_PRIMA2
 192         select DMA_ENGINE
 193         help
 194           Enable support for the CSR SiRFprimaII DMA engine.
 195
 196 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 197         bool
 198
 199 config PL330_DMA
 200         tristate "DMA API Driver for PL330"
 201         select DMA_ENGINE
 202         depends on ARM_AMBA
 203         help
 204           Select if your platform has one or more PL330 DMACs.
 205           You need to provide platform specific settings via
 206           platform_data for a dma-pl330 device.
 207
 208 config PCH_DMA
 209         tristate "Intel EG20T PCH / LAPIS Semicon IOH(ML7213/ML7223/ML7831) DMA"
 210         depends on PCI && X86
 211         select DMA_ENGINE
 212         help
 213           Enable support for Intel EG20T PCH DMA engine.
 214
 215           This driver also can be used for LAPIS Semiconductor IOH(Input/
 216           Output Hub), ML7213, ML7223 and ML7831.
 217           ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
 218           for MP(Media Phone) use and ML7831 IOH is for general purpose use.
 219           ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 220           ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 221
 222 config IMX_SDMA
 223         tristate "i.MX SDMA support"
 224         depends on ARCH_MXC
 225         select DMA_ENGINE
 226         help
 227           Support the i.MX SDMA engine. This engine is integrated into
 228           Freescale i.MX25/31/35/51/53 chips.
 229
 230 config IMX_DMA
 231         tristate "i.MX DMA support"
 232         depends on ARCH_MXC
 233         select DMA_ENGINE
 234         help
 235           Support the i.MX DMA engine. This engine is integrated into
 236           Freescale i.MX1/21/27 chips.
 237
 238 config MXS_DMA
 239         bool "MXS DMA support"
 240         depends on SOC_IMX23 || SOC_IMX28
 241         select DMA_ENGINE
 242         help
 243           Support the MXS DMA engine. This engine including APBH-DMA
 244           and APBX-DMA is integrated into Freescale i.MX23/28 chips.
 245
 246 config EP93XX_DMA
 247         bool "Cirrus Logic EP93xx DMA support"
 248         depends on ARCH_EP93XX
 249         select DMA_ENGINE
 250         help
 251           Enable support for the Cirrus Logic EP93xx M2P/M2M DMA controller.
 252
 253 config DMA_SA11X0
 254         tristate "SA-11x0 DMA support"
 255         depends on ARCH_SA1100
 256         select DMA_ENGINE
 257         help
 258           Support the DMA engine found on Intel StrongARM SA-1100 and
 259           SA-1110 SoCs.  This DMA engine can only be used with on-chip
 260           devices.
 261
 262 config DMA_ENGINE
 263         bool
 264
 265 comment "DMA Clients"
 266         depends on DMA_ENGINE
 267
 268 config NET_DMA
 269         bool "Network: TCP receive copy offload"
 270         depends on DMA_ENGINE && NET
 271         default (INTEL_IOATDMA || FSL_DMA)
 272         help
 273           This enables the use of DMA engines in the network stack to
 274           offload receive copy-to-user operations, freeing CPU cycles.
 275
 276           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
 277           say N.
 278
 279 config ASYNC_TX_DMA
 280         bool "Async_tx: Offload support for the async_tx api"
 281         depends on DMA_ENGINE
 282         help
 283           This allows the async_tx api to take advantage of offload engines for
 284           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 285           a dma engine that can perform raid operations and you have enabled
 286           MD_RAID456 say Y.
 287
 288           If unsure, say N.
 289
 290 config DMATEST
 291         tristate "DMA Test client"
 292         depends on DMA_ENGINE
 293         help
 294           Simple DMA test client. Say N unless you're debugging a
 295           DMA Device driver.
 296
 297 endif