2 # DMA engine configuration
6 bool "DMA Engine support"
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.
20 config ASYNC_TX_DISABLE_CHANNEL_SWITCH
24 tristate "Intel I/OAT DMA support"
28 select ASYNC_TX_DISABLE_CHANNEL_SWITCH
30 Enable support for the Intel(R) I/OAT DMA engine present
31 in recent Intel Xeon chipsets.
33 Say Y here if you have such a chipset.
38 tristate "Intel IOP ADMA support"
39 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
42 Enable support for the Intel(R) IOP Series RAID engines.
45 tristate "Synopsys DesignWare AHB DMA support"
48 default y if CPU_AT32AP7000
50 Support the Synopsys DesignWare AHB DMA controller. This
51 can be integrated in chips such as the Atmel AT32ap7000.
54 tristate "Atmel AHB DMA support"
55 depends on ARCH_AT91SAM9RL
58 Support the Atmel AHB DMA controller. This can be integrated in
59 chips such as the Atmel AT91SAM9RL.
62 tristate "Freescale Elo and Elo Plus DMA support"
66 Enable support for the Freescale Elo and Elo Plus DMA controllers.
67 The Elo is the DMA controller on some 82xx and 83xx parts, and the
68 Elo Plus is the DMA controller on 85xx and 86xx parts.
71 bool "Marvell XOR engine support"
75 Enable support for the Marvell XOR engine.
78 bool "MX3x Image Processing Unit support"
83 If you plan to use the Image Processing unit in the i.MX3x, say
84 Y here. If unsure, select Y.
87 int "Number of dynamically mapped interrupts for IPU"
92 Out of 137 interrupt sources on i.MX31 IPU only very few are used.
93 To avoid bloating the irq_desc[] array we allocate a sufficient
94 number of IRQ slots and map them dynamically to specific sources.
97 tristate "Toshiba TXx9 SoC DMA support"
98 depends on MACH_TX49XX || MACH_TX39XX
101 Support the TXx9 SoC internal DMA controller. This can be
102 integrated in chips such as the Toshiba TX4927/38/39.
105 tristate "Renesas SuperH DMAC support"
106 depends on SUPERH && SH_DMA
107 depends on !SH_DMA_API
110 Enable support for the Renesas SuperH DMA controllers.
115 comment "DMA Clients"
116 depends on DMA_ENGINE
119 bool "Network: TCP receive copy offload"
120 depends on DMA_ENGINE && NET
121 default (INTEL_IOATDMA || FSL_DMA)
123 This enables the use of DMA engines in the network stack to
124 offload receive copy-to-user operations, freeing CPU cycles.
126 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
130 bool "Async_tx: Offload support for the async_tx api"
131 depends on DMA_ENGINE
133 This allows the async_tx api to take advantage of offload engines for
134 memcpy, memset, xor, and raid6 p+q operations. If your platform has
135 a dma engine that can perform raid operations and you have enabled
141 tristate "DMA Test client"
142 depends on DMA_ENGINE
144 Simple DMA test client. Say N unless you're debugging a