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_DISABLE_CHANNEL_SWITCH
  50         bool
  51
  52 config INTEL_IOATDMA
  53         tristate "Intel I/OAT DMA support"
  54         depends on PCI && X86
  55         select DMA_ENGINE
  56         select DCA
  57         select ASYNC_TX_DISABLE_CHANNEL_SWITCH
  58         select ASYNC_TX_DISABLE_PQ_VAL_DMA
  59         select ASYNC_TX_DISABLE_XOR_VAL_DMA
  60         help
  61           Enable support for the Intel(R) I/OAT DMA engine present
  62           in recent Intel Xeon chipsets.
  63
  64           Say Y here if you have such a chipset.
  65
  66           If unsure, say N.
  67
  68 config INTEL_IOP_ADMA
  69         tristate "Intel IOP ADMA support"
  70         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  71         select DMA_ENGINE
  72         help
  73           Enable support for the Intel(R) IOP Series RAID engines.
  74
  75 config DW_DMAC
  76         tristate "Synopsys DesignWare AHB DMA support"
  77         depends on AVR32
  78         select DMA_ENGINE
  79         default y if CPU_AT32AP7000
  80         help
  81           Support the Synopsys DesignWare AHB DMA controller.  This
  82           can be integrated in chips such as the Atmel AT32ap7000.
  83
  84 config AT_HDMAC
  85         tristate "Atmel AHB DMA support"
  86         depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
  87         select DMA_ENGINE
  88         help
  89           Support the Atmel AHB DMA controller.  This can be integrated in
  90           chips such as the Atmel AT91SAM9RL.
  91
  92 config FSL_DMA
  93         tristate "Freescale Elo and Elo Plus DMA support"
  94         depends on FSL_SOC
  95         select DMA_ENGINE
  96         ---help---
  97           Enable support for the Freescale Elo and Elo Plus DMA controllers.
  98           The Elo is the DMA controller on some 82xx and 83xx parts, and the
  99           Elo Plus is the DMA controller on 85xx and 86xx parts.
 100
 101 config MPC512X_DMA
 102         tristate "Freescale MPC512x built-in DMA engine support"
 103         depends on PPC_MPC512x
 104         select DMA_ENGINE
 105         ---help---
 106           Enable support for the Freescale MPC512x built-in DMA engine.
 107
 108 config MV_XOR
 109         bool "Marvell XOR engine support"
 110         depends on PLAT_ORION
 111         select DMA_ENGINE
 112         ---help---
 113           Enable support for the Marvell XOR engine.
 114
 115 config MX3_IPU
 116         bool "MX3x Image Processing Unit support"
 117         depends on ARCH_MX3
 118         select DMA_ENGINE
 119         default y
 120         help
 121           If you plan to use the Image Processing unit in the i.MX3x, say
 122           Y here. If unsure, select Y.
 123
 124 config MX3_IPU_IRQS
 125         int "Number of dynamically mapped interrupts for IPU"
 126         depends on MX3_IPU
 127         range 2 137
 128         default 4
 129         help
 130           Out of 137 interrupt sources on i.MX31 IPU only very few are used.
 131           To avoid bloating the irq_desc[] array we allocate a sufficient
 132           number of IRQ slots and map them dynamically to specific sources.
 133
 134 config TXX9_DMAC
 135         tristate "Toshiba TXx9 SoC DMA support"
 136         depends on MACH_TX49XX || MACH_TX39XX
 137         select DMA_ENGINE
 138         help
 139           Support the TXx9 SoC internal DMA controller.  This can be
 140           integrated in chips such as the Toshiba TX4927/38/39.
 141
 142 config SH_DMAE
 143         tristate "Renesas SuperH DMAC support"
 144         depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
 145         depends on !SH_DMA_API
 146         select DMA_ENGINE
 147         help
 148           Enable support for the Renesas SuperH DMA controllers.
 149
 150 config COH901318
 151         bool "ST-Ericsson COH901318 DMA support"
 152         select DMA_ENGINE
 153         depends on ARCH_U300
 154         help
 155           Enable support for ST-Ericsson COH 901 318 DMA.
 156
 157 config STE_DMA40
 158         bool "ST-Ericsson DMA40 support"
 159         depends on ARCH_U8500
 160         select DMA_ENGINE
 161         help
 162           Support for ST-Ericsson DMA40 controller
 163
 164 config AMCC_PPC440SPE_ADMA
 165         tristate "AMCC PPC440SPe ADMA support"
 166         depends on 440SPe || 440SP
 167         select DMA_ENGINE
 168         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 169         help
 170           Enable support for the AMCC PPC440SPe RAID engines.
 171
 172 config TIMB_DMA
 173         tristate "Timberdale FPGA DMA support"
 174         depends on MFD_TIMBERDALE || HAS_IOMEM
 175         select DMA_ENGINE
 176         help
 177           Enable support for the Timberdale FPGA DMA engine.
 178
 179 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 180         bool
 181
 182 config PL330_DMA
 183         tristate "DMA API Driver for PL330"
 184         select DMA_ENGINE
 185         depends on PL330
 186         help
 187           Select if your platform has one or more PL330 DMACs.
 188           You need to provide platform specific settings via
 189           platform_data for a dma-pl330 device.
 190
 191 config PCH_DMA
 192         tristate "Topcliff PCH DMA support"
 193         depends on PCI && X86
 194         select DMA_ENGINE
 195         help
 196           Enable support for the Topcliff PCH DMA engine.
 197
 198 config DMA_ENGINE
 199         bool
 200
 201 comment "DMA Clients"
 202         depends on DMA_ENGINE
 203
 204 config NET_DMA
 205         bool "Network: TCP receive copy offload"
 206         depends on DMA_ENGINE && NET
 207         default (INTEL_IOATDMA || FSL_DMA)
 208         help
 209           This enables the use of DMA engines in the network stack to
 210           offload receive copy-to-user operations, freeing CPU cycles.
 211
 212           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
 213           say N.
 214
 215 config ASYNC_TX_DMA
 216         bool "Async_tx: Offload support for the async_tx api"
 217         depends on DMA_ENGINE
 218         help
 219           This allows the async_tx api to take advantage of offload engines for
 220           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 221           a dma engine that can perform raid operations and you have enabled
 222           MD_RAID456 say Y.
 223
 224           If unsure, say N.
 225
 226 config DMATEST
 227         tristate "DMA Test client"
 228         depends on DMA_ENGINE
 229         help
 230           Simple DMA test client. Say N unless you're debugging a
 231           DMA Device driver.
 232
 233 endif