Chris Leech | c13c826 | 2006-05-23 17:18:44 -0700 | [diff] [blame] | 1 | # |
| 2 | # DMA engine configuration |
| 3 | # |
| 4 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 5 | menuconfig DMADEVICES |
Haavard Skinnemoen | 6d4f587 | 2007-11-28 16:21:43 -0800 | [diff] [blame] | 6 | bool "DMA Engine support" |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 7 | depends on !HIGHMEM64G && HAS_DMA |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 8 | help |
Haavard Skinnemoen | 6d4f587 | 2007-11-28 16:21:43 -0800 | [diff] [blame] | 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 |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 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. |
Chris Leech | c13c826 | 2006-05-23 17:18:44 -0700 | [diff] [blame] | 15 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 16 | if DMADEVICES |
Chris Leech | db21733 | 2006-06-17 21:24:58 -0700 | [diff] [blame] | 17 | |
Chris Leech | 0bbd5f4 | 2006-05-23 17:35:34 -0700 | [diff] [blame] | 18 | comment "DMA Devices" |
| 19 | |
| 20 | config INTEL_IOATDMA |
| 21 | tristate "Intel I/OAT DMA support" |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 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. |
Dan Williams | c211092 | 2007-01-02 13:52:26 -0700 | [diff] [blame] | 32 | |
| 33 | config INTEL_IOP_ADMA |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 34 | tristate "Intel IOP ADMA support" |
| 35 | depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 36 | select DMA_ENGINE |
| 37 | help |
| 38 | Enable support for the Intel(R) IOP Series RAID engines. |
Dan Williams | c211092 | 2007-01-02 13:52:26 -0700 | [diff] [blame] | 39 | |
Haavard Skinnemoen | 3bfb1d2 | 2008-07-08 11:59:42 -0700 | [diff] [blame] | 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 | |
Zhang Wei | 173acc7 | 2008-03-01 07:42:48 -0700 | [diff] [blame] | 49 | config FSL_DMA |
Timur Tabi | 77cd62e | 2008-09-26 17:00:11 -0700 | [diff] [blame] | 50 | tristate "Freescale Elo and Elo Plus DMA support" |
| 51 | depends on FSL_SOC |
Zhang Wei | 173acc7 | 2008-03-01 07:42:48 -0700 | [diff] [blame] | 52 | select DMA_ENGINE |
| 53 | ---help--- |
Timur Tabi | 77cd62e | 2008-09-26 17:00:11 -0700 | [diff] [blame] | 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. |
Zhang Wei | 173acc7 | 2008-03-01 07:42:48 -0700 | [diff] [blame] | 57 | |
Saeed Bishara | ff7b047 | 2008-07-08 11:58:36 -0700 | [diff] [blame] | 58 | config MV_XOR |
| 59 | bool "Marvell XOR engine support" |
| 60 | depends on PLAT_ORION |
Saeed Bishara | ff7b047 | 2008-07-08 11:58:36 -0700 | [diff] [blame] | 61 | select DMA_ENGINE |
| 62 | ---help--- |
| 63 | Enable support for the Marvell XOR engine. |
| 64 | |
Guennadi Liakhovetski | 5296b56 | 2009-01-19 15:36:21 -0700 | [diff] [blame] | 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 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 84 | config DMA_ENGINE |
| 85 | bool |
| 86 | |
| 87 | comment "DMA Clients" |
| 88 | depends on DMA_ENGINE |
| 89 | |
| 90 | config NET_DMA |
| 91 | bool "Network: TCP receive copy offload" |
| 92 | depends on DMA_ENGINE && NET |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 93 | default (INTEL_IOATDMA || FSL_DMA) |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 94 | help |
| 95 | This enables the use of DMA engines in the network stack to |
| 96 | offload receive copy-to-user operations, freeing CPU cycles. |
Dan Williams | 9c402f4 | 2008-06-27 01:21:11 -0700 | [diff] [blame] | 97 | |
| 98 | Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise |
| 99 | say N. |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 100 | |
Dan Williams | 729b5d1 | 2009-03-25 09:13:25 -0700 | [diff] [blame] | 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 | |
Haavard Skinnemoen | 4a776f0 | 2008-07-08 11:58:45 -0700 | [diff] [blame] | 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 | |
Shannon Nelson | 2ed6dc3 | 2007-10-16 01:27:42 -0700 | [diff] [blame] | 119 | endif |