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Chris Leechc13c8262006-05-23 17:18:44 -07001#
2# DMA engine configuration
3#
4
Shannon Nelson2ed6dc32007-10-16 01:27:42 -07005menuconfig DMADEVICES
Haavard Skinnemoen6d4f5872007-11-28 16:21:43 -08006 bool "DMA Engine support"
Dan Williams9c402f42008-06-27 01:21:11 -07007 depends on !HIGHMEM64G && HAS_DMA
Shannon Nelson2ed6dc32007-10-16 01:27:42 -07008 help
Haavard Skinnemoen6d4f5872007-11-28 16:21:43 -08009 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
Dan Williams9c402f42008-06-27 01:21:11 -070012 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.
Chris Leechc13c8262006-05-23 17:18:44 -070015
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070016if DMADEVICES
Chris Leechdb217332006-06-17 21:24:58 -070017
Chris Leech0bbd5f42006-05-23 17:35:34 -070018comment "DMA Devices"
19
20config INTEL_IOATDMA
21 tristate "Intel I/OAT DMA support"
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070022 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.
Dan Williamsc2110922007-01-02 13:52:26 -070032
33config INTEL_IOP_ADMA
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070034 tristate "Intel IOP ADMA support"
35 depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX
Dan Williamsc2110922007-01-02 13:52:26 -070036 select ASYNC_CORE
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070037 select DMA_ENGINE
38 help
39 Enable support for the Intel(R) IOP Series RAID engines.
Dan Williamsc2110922007-01-02 13:52:26 -070040
Haavard Skinnemoen3bfb1d22008-07-08 11:59:42 -070041config DW_DMAC
42 tristate "Synopsys DesignWare AHB DMA support"
43 depends on AVR32
44 select DMA_ENGINE
45 default y if CPU_AT32AP7000
46 help
47 Support the Synopsys DesignWare AHB DMA controller. This
48 can be integrated in chips such as the Atmel AT32ap7000.
49
Zhang Wei173acc72008-03-01 07:42:48 -070050config FSL_DMA
Timur Tabi77cd62e2008-09-26 17:00:11 -070051 tristate "Freescale Elo and Elo Plus DMA support"
52 depends on FSL_SOC
Zhang Wei173acc72008-03-01 07:42:48 -070053 select DMA_ENGINE
54 ---help---
Timur Tabi77cd62e2008-09-26 17:00:11 -070055 Enable support for the Freescale Elo and Elo Plus DMA controllers.
56 The Elo is the DMA controller on some 82xx and 83xx parts, and the
57 Elo Plus is the DMA controller on 85xx and 86xx parts.
Zhang Wei173acc72008-03-01 07:42:48 -070058
Saeed Bisharaff7b0472008-07-08 11:58:36 -070059config MV_XOR
60 bool "Marvell XOR engine support"
61 depends on PLAT_ORION
62 select ASYNC_CORE
63 select DMA_ENGINE
64 ---help---
65 Enable support for the Marvell XOR engine.
66
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070067config DMA_ENGINE
68 bool
69
70comment "DMA Clients"
71 depends on DMA_ENGINE
72
73config NET_DMA
74 bool "Network: TCP receive copy offload"
75 depends on DMA_ENGINE && NET
Dan Williams9c402f42008-06-27 01:21:11 -070076 default (INTEL_IOATDMA || FSL_DMA)
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070077 help
78 This enables the use of DMA engines in the network stack to
79 offload receive copy-to-user operations, freeing CPU cycles.
Dan Williams9c402f42008-06-27 01:21:11 -070080
81 Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise
82 say N.
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070083
Haavard Skinnemoen4a776f02008-07-08 11:58:45 -070084config DMATEST
85 tristate "DMA Test client"
86 depends on DMA_ENGINE
87 help
88 Simple DMA test client. Say N unless you're debugging a
89 DMA Device driver.
90
Shannon Nelson2ed6dc32007-10-16 01:27:42 -070091endif