Commit | Line | Data |
---|---|---|
c13c8260 CL |
1 | # |
2 | # DMA engine configuration | |
3 | # | |
4 | ||
2ed6dc34 | 5 | menuconfig DMADEVICES |
6d4f5879 | 6 | bool "DMA Engine support" |
9c402f4e | 7 | depends on !HIGHMEM64G && HAS_DMA |
2ed6dc34 | 8 | help |
6d4f5879 HS |
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 | |
9c402f4e DW |
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. | |
2ed6dc34 SN |
15 | |
16 | if DMADEVICES | |
17 | ||
18 | comment "DMA Devices" | |
19 | ||
20 | config INTEL_IOATDMA | |
21 | tristate "Intel I/OAT DMA support" | |
22 | depends on PCI && X86 | |
23 | select DMA_ENGINE | |
24 | select DCA | |
25 | help | |
26 | Enable support for the Intel(R) I/OAT DMA engine present | |
27 | in recent Intel Xeon chipsets. | |
28 | ||
29 | Say Y here if you have such a chipset. | |
30 | ||
31 | If unsure, say N. | |
32 | ||
33 | config INTEL_IOP_ADMA | |
34 | tristate "Intel IOP ADMA support" | |
35 | depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX | |
2ed6dc34 SN |
36 | select DMA_ENGINE |
37 | help | |
38 | Enable support for the Intel(R) IOP Series RAID engines. | |
c13c8260 | 39 | |
3bfb1d20 HS |
40 | config DW_DMAC |
41 | tristate "Synopsys DesignWare AHB DMA support" | |
42 | depends on AVR32 | |
43 | select DMA_ENGINE | |
44 | default y if CPU_AT32AP7000 | |
45 | help | |
46 | Support the Synopsys DesignWare AHB DMA controller. This | |
47 | can be integrated in chips such as the Atmel AT32ap7000. | |
48 | ||
173acc7c | 49 | config FSL_DMA |
77cd62e8 TT |
50 | tristate "Freescale Elo and Elo Plus DMA support" |
51 | depends on FSL_SOC | |
173acc7c ZW |
52 | select DMA_ENGINE |
53 | ---help--- | |
77cd62e8 TT |
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. | |
173acc7c | 57 | |
ff7b0479 SB |
58 | config MV_XOR |
59 | bool "Marvell XOR engine support" | |
60 | depends on PLAT_ORION | |
ff7b0479 SB |
61 | select DMA_ENGINE |
62 | ---help--- | |
63 | Enable support for the Marvell XOR engine. | |
64 | ||
5296b56d GL |
65 | config MX3_IPU |
66 | bool "MX3x Image Processing Unit support" | |
67 | depends on ARCH_MX3 | |
68 | select DMA_ENGINE | |
69 | default y | |
70 | help | |
71 | If you plan to use the Image Processing unit in the i.MX3x, say | |
72 | Y here. If unsure, select Y. | |
73 | ||
74 | config MX3_IPU_IRQS | |
75 | int "Number of dynamically mapped interrupts for IPU" | |
76 | depends on MX3_IPU | |
77 | range 2 137 | |
78 | default 4 | |
79 | help | |
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. | |
83 | ||
c13c8260 | 84 | config DMA_ENGINE |
2ed6dc34 | 85 | bool |
c13c8260 | 86 | |
db217334 | 87 | comment "DMA Clients" |
2ed6dc34 | 88 | depends on DMA_ENGINE |
db217334 CL |
89 | |
90 | config NET_DMA | |
91 | bool "Network: TCP receive copy offload" | |
92 | depends on DMA_ENGINE && NET | |
9c402f4e | 93 | default (INTEL_IOATDMA || FSL_DMA) |
2ed6dc34 | 94 | help |
db217334 CL |
95 | This enables the use of DMA engines in the network stack to |
96 | offload receive copy-to-user operations, freeing CPU cycles. | |
9c402f4e DW |
97 | |
98 | Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise | |
99 | say N. | |
db217334 | 100 | |
729b5d1b DW |
101 | config ASYNC_TX_DMA |
102 | bool "Async_tx: Offload support for the async_tx api" | |
103 | depends on DMA_ENGINE | |
104 | help | |
105 | This allows the async_tx api to take advantage of offload engines for | |
106 | memcpy, memset, xor, and raid6 p+q operations. If your platform has | |
107 | a dma engine that can perform raid operations and you have enabled | |
108 | MD_RAID456 say Y. | |
109 | ||
110 | If unsure, say N. | |
111 | ||
4a776f0a HS |
112 | config DMATEST |
113 | tristate "DMA Test client" | |
114 | depends on DMA_ENGINE | |
115 | help | |
116 | Simple DMA test client. Say N unless you're debugging a | |
117 | DMA Device driver. | |
118 | ||
2ed6dc34 | 119 | endif |