Searching for Dma Engine Support Linux Kernel information? Find all needed info by using official links provided below.
https://www.kernel.org/doc/html/latest/driver-api/dmaengine/client.html
This returns a cookie can be used to check the progress of DMA engine activity via other DMA engine calls not covered in this document. dmaengine_submit() will not start the DMA operation, it merely adds it to the pending queue. For this, see step 5, dma_async_issue_pending.
https://www.kernel.org/doc/html/v4.19/driver-api/dmaengine/client.html
This returns a cookie can be used to check the progress of DMA engine activity via other DMA engine calls not covered in this document. dmaengine_submit() will not start the DMA operation, it merely adds it to the pending queue. For this, see step 5, dma_async_issue_pending. Issue pending DMA requests and wait for callback notification
https://patchwork.kernel.org/project/linux-dmaengine/list/
Toggle navigation Patchwork Linux DMAEngine Patches Bundles About this project ... dmaengine: tegra-apb: Allow to compile as a loadable kernel module NVIDIA Tegra APB DMA driver fixes and improvements 1 - - 0 0 0: 2020-01-23: Dmitry Osipenko ... [v5] dmaengine: hisilicon: Add Kunpeng DMA engine support [v5] dmaengine: hisilicon: Add Kunpeng DMA ...
https://patchwork.kernel.org/project/linux-dmaengine/list/?state=*
Toggle navigation Patchwork Linux DMAEngine Patches Bundles About this project ... dmaengine: tegra-apb: Allow to compile as a loadable kernel module NVIDIA Tegra APB DMA driver fixes and improvements - - - 0 0 0: 2019-12-29: ... dmaengine: hisilicon: Add Kunpeng DMA engine support [v3] dmaengine: hisilicon: Add Kunpeng DMA engine support ...
https://lwn.net/Articles/535153/
Changes since v5: - Dropped mmc portion and moved it to a separate series - Incorporate corrected version of dma_request_slave_channel_compat() - Fix #defines and enablement of TI_PRIV_EDMA option Changes since v4: - Fixed debug section mismatch in private edma api [01/14] - Respun format-patch to catch the platform_data/edma.h rename [01/14] - Removed address/size-cells from the …
https://lwn.net/Articles/520351/
Changes since v2: - Rebased on 3.7-rc1 - Fixed bug in DT/pdata parsing first found by Gururaja that turned out to be masked by some toolchains - Dropped unused mach-omap2/devices.c hsmmc patch - Added AM33XX crossbar DMA event mux support - Added am335x-evm support Changes since v1: - Rebased on top of mainline from 12250d8 - Dropped the feature removal schedule patch - …
https://github.com/torvalds/linux/blob/master/Documentation/DMA-API-HOWTO.txt
Jul 15, 2019 · Contribute to torvalds/linux development by creating an account on GitHub. ... kernel logs when the DMA controller hardware detects violation of the: permission setting. Only streaming mappings specify a direction, consistent mappings ... as it is impossible to correctly support them.
https://www.linuxjournal.com/article/7104
May 01, 2004 · The API that manages DMA in the Linux kernel must take into account and solve all three of these problems. In addition, because most DMA is done from devices on an external bus, three additional problems may occur. First, the I/O device addressing width may be different from the address width of physical memory.
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