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 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_CHANNEL_SWITCH
  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
  76 config INTEL_IOP_ADMA
  77         tristate "Intel IOP ADMA support"
  78         depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
  79         select DMA_ENGINE
  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 AVR32
  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         ---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
 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         ---help---
 121           Enable support for the Marvell XOR engine.
 122
 123 config MX3_IPU
 124         bool "MX3x Image Processing Unit support"
 125         depends on ARCH_MX3
 126         select DMA_ENGINE
 127         default y
 128         help
 129           If you plan to use the Image Processing unit in the i.MX3x, say
 130           Y here. If unsure, select Y.
 131
 132 config MX3_IPU_IRQS
 133         int "Number of dynamically mapped interrupts for IPU"
 134         depends on MX3_IPU
 135         range 2 137
 136         default 4
 137         help
 138           Out of 137 interrupt sources on i.MX31 IPU only very few are used.
 139           To avoid bloating the irq_desc[] array we allocate a sufficient
 140           number of IRQ slots and map them dynamically to specific sources.
 141
 142 config TXX9_DMAC
 143         tristate "Toshiba TXx9 SoC DMA support"
 144         depends on MACH_TX49XX || MACH_TX39XX
 145         select DMA_ENGINE
 146         help
 147           Support the TXx9 SoC internal DMA controller.  This can be
 148           integrated in chips such as the Toshiba TX4927/38/39.
 149
 150 config SH_DMAE
 151         tristate "Renesas SuperH DMAC support"
 152         depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
 153         depends on !SH_DMA_API
 154         select DMA_ENGINE
 155         help
 156           Enable support for the Renesas SuperH DMA controllers.
 157
 158 config COH901318
 159         bool "ST-Ericsson COH901318 DMA support"
 160         select DMA_ENGINE
 161         depends on ARCH_U300
 162         help
 163           Enable support for ST-Ericsson COH 901 318 DMA.
 164
 165 config STE_DMA40
 166         bool "ST-Ericsson DMA40 support"
 167         depends on ARCH_U8500
 168         select DMA_ENGINE
 169         help
 170           Support for ST-Ericsson DMA40 controller
 171
 172 config AMCC_PPC440SPE_ADMA
 173         tristate "AMCC PPC440SPe ADMA support"
 174         depends on 440SPe || 440SP
 175         select DMA_ENGINE
 176         select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 177         help
 178           Enable support for the AMCC PPC440SPe RAID engines.
 179
 180 config TIMB_DMA
 181         tristate "Timberdale FPGA DMA support"
 182         depends on MFD_TIMBERDALE || HAS_IOMEM
 183         select DMA_ENGINE
 184         help
 185           Enable support for the Timberdale FPGA DMA engine.
 186
 187 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 188         bool
 189
 190 config PL330_DMA
 191         tristate "DMA API Driver for PL330"
 192         select DMA_ENGINE
 193         depends on PL330
 194         help
 195           Select if your platform has one or more PL330 DMACs.
 196           You need to provide platform specific settings via
 197           platform_data for a dma-pl330 device.
 198
 199 config PCH_DMA
 200         tristate "Topcliff PCH DMA support"
 201         depends on PCI && X86
 202         select DMA_ENGINE
 203         help
 204           Enable support for the Topcliff PCH DMA engine.
 205
 206 config DMA_ENGINE
 207         bool
 208
 209 comment "DMA Clients"
 210         depends on DMA_ENGINE
 211
 212 config NET_DMA
 213         bool "Network: TCP receive copy offload"
 214         depends on DMA_ENGINE && NET
 215         default (INTEL_IOATDMA || FSL_DMA)
 216         help
 217           This enables the use of DMA engines in the network stack to
 218           offload receive copy-to-user operations, freeing CPU cycles.
 219
 220           Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
 221           say N.
 222
 223 config ASYNC_TX_DMA
 224         bool "Async_tx: Offload support for the async_tx api"
 225         depends on DMA_ENGINE
 226         help
 227           This allows the async_tx api to take advantage of offload engines for
 228           memcpy, memset, xor, and raid6 p+q operations.  If your platform has
 229           a dma engine that can perform raid operations and you have enabled
 230           MD_RAID456 say Y.
 231
 232           If unsure, say N.
 233
 234 config DMATEST
 235         tristate "DMA Test client"
 236         depends on DMA_ENGINE
 237         help
 238           Simple DMA test client. Say N unless you're debugging a
 239           DMA Device driver.
 240
 241 endif