2 # DMA engine configuration
6 bool "DMA Engine support"
7 depends on !HIGHMEM64G && HAS_DMA
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.
21 tristate "Intel I/OAT DMA support"
26 Enable support for the Intel(R) I/OAT DMA engine present
27 in recent Intel Xeon chipsets.
29 Say Y here if you have such a chipset.
34 tristate "Intel IOP ADMA support"
35 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
38 Enable support for the Intel(R) IOP Series RAID engines.
41 tristate "Synopsys DesignWare AHB DMA support"
44 default y if CPU_AT32AP7000
46 Support the Synopsys DesignWare AHB DMA controller. This
47 can be integrated in chips such as the Atmel AT32ap7000.
50 tristate "Freescale Elo and Elo Plus DMA support"
54 Enable support for the Freescale Elo and Elo Plus DMA controllers.
55 The Elo is the DMA controller on some 82xx and 83xx parts, and the
56 Elo Plus is the DMA controller on 85xx and 86xx parts.
59 bool "Marvell XOR engine support"
63 Enable support for the Marvell XOR engine.
66 bool "MX3x Image Processing Unit support"
71 If you plan to use the Image Processing unit in the i.MX3x, say
72 Y here. If unsure, select Y.
75 int "Number of dynamically mapped interrupts for IPU"
80 Out of 137 interrupt sources on i.MX31 IPU only very few are used.
81 To avoid bloating the irq_desc[] array we allocate a sufficient
82 number of IRQ slots and map them dynamically to specific sources.
85 tristate "Toshiba TXx9 SoC DMA support"
86 depends on MACH_TX49XX || MACH_TX39XX
89 Support the TXx9 SoC internal DMA controller. This can be
90 integrated in chips such as the Toshiba TX4927/38/39.
99 bool "Network: TCP receive copy offload"
100 depends on DMA_ENGINE && NET
101 default (INTEL_IOATDMA || FSL_DMA)
103 This enables the use of DMA engines in the network stack to
104 offload receive copy-to-user operations, freeing CPU cycles.
106 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
110 bool "Async_tx: Offload support for the async_tx api"
111 depends on DMA_ENGINE
113 This allows the async_tx api to take advantage of offload engines for
114 memcpy, memset, xor, and raid6 p+q operations. If your platform has
115 a dma engine that can perform raid operations and you have enabled
121 tristate "DMA Test client"
122 depends on DMA_ENGINE
124 Simple DMA test client. Say N unless you're debugging a