device with means to transfer information indicating whether or not the establishment of dma support 来自 掌桥科研 喜欢 0 阅读量: 9 申请(专利)号: DE2003612539T 申请日期: 2003-10-01 公开/公告号: DE60312539D1 公开/公告日期: 2007-04-26 ...
b44_sync_dma_desc_for_device(bp->sdev, bp->rx_ring_dma, dest_idx * sizeof(*dest_desc), DMA_BIDIRECTIONAL); - - dma_sync_single_for_device(bp->sdev->dma_dev, dest_map->mapping, - RX_PKT_BUF_SZ, - DMA_FROM_DEVICE); } static int b44_rx(struct b44 *bp, int budget) di...
Each virtual DMA channel corresponds to one of the I/O resources.doi:US20040093438 A1Brian Keith OdomUSUS20040093438 * 2002年11月7日 2004年5月13日 Odom Brian Keith DMA device configured to configure DMA resources as multiple virtual DMA channels for use by I/O resources...
I am working on a byte transfer from SDRAM to a register of my custom hardware. I have set the byte transfer enable and wcon for byte transfers and write to a constant address. But, I see that the DMA is reading from the SDRAM 4 bytes at a time. I dont know about the actual prot...
76007 - DMA Subsystem for PCI Express (Vivado 2020.1) - XDMA hangs when dma_to_device transfers are of lengths which are not multiples of 4 bytes Description Version Found: Vivado 2020.1 Version Resolved and other Known Issues:(Xilinx Answer 65443) ...
* DMA capability is not explicitly described by firmware. * @id: Optional const pointer value input id * * Try to get devices's DMA configuration from DT and update it * accordingly. Expand All@@ -86,7 +87,8 @@ int of_device_add(struct platform_device *ofdev) ...
detected. A transfer request can be triggered from software, from an external trigger source (peripheral) or from an event. There are dedicated source trigger selections for each DMA channel. The available trigger sources may vary from one device to anoth 当DMA调动请求被查出时, DMA调动可能只...
(null): DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000087891000] [size=28 bytes] Modules linked in: CPU: 0 PID: 60 Comm: cryptomgr_test Not tainted 3.12.0+ #25 Backtrace: [<800111ec>] (dump_backtrace+0x0/0x108) from [<80011...
Describe the bug Getting a warning in dmesg when running 5.17 series kernels [ 15.267615] DMA-API: sof-audio-pci-intel-cnl 0000:00:1f.3: mapping sg segment longer than device claims to support [len=540672] [max=65536] [ 15.269962] WARNIN...
Hi All, I have found that I can't enable Windows Device Encryption on my desktop due to the following issue "Un-allowed DMA-capable bus/device(s) detected". I have tried the registry solution that was given here:…