dma_to_device
dma_sync_single_for_cpu(NULL, virt_to_bus((void *)(NOR_DATA_BASE+pa)), len, DMA_TO_DEVICE);. 因為我當時是從上一代的codes 來改的(老闆寫的阿), ... ,將cache中的資料和實體記憶體資料做同步的動作，其DMA_TO_DEVICE就是做invalidate的動作， 而DMA_FROM_DEVICE就是synchronize的動作，這些API必需要 ... ,Defined in 1 files: include/linux/dma-direction.h, line 9 (as a enumerator). Referenced in 394 files: arch/arm/common/dmabounce.c, 2 times ... ,Defined in 2 files: include/linux/dma-direction.h, line 9 (as a enumerator) · tools/virtio/linux/dma-mapping.h, line 12 (as a enumerator) ... ,Defined in 1 files: include/linux/dma-direction.h, line 9 (as a enumerator). Referenced in 525 files: arch/arc/include/asm/dma-mapping.h, 3 times ... ,Defined in 3 files: include/linux/dma-direction.h, line 7 (as a enumerator) · include/trace/events/rpcrdma.h, line 235 (as a variable) ... ,DMA_TO_DEVICE means "from main memory to the device" DMA_FROM_DEVICE means "from the device to main memory" It is the direction in which the data ... ,DMA_TO_DEVICE synchronisation must be done after the last modification of the memory region by the software and before it is handed off to the device. , DMA动态映射指南. translated by JHJ([email protected]). 本文通过伪代码指导驱动开发者如何正确使用DMA API。关于API更精确的 ..., a、DMA_TO_DEVICE：把cache的数据刷回内存里，用于使能dma传输到外设之前。因为dma传输只会从内存拿数据，所以必须把cache的数据全部 ...
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 dma_to_device 相關參考資料
內存映射與DMA筆記@ 程式專欄:: 隨意窩Xuite日誌
dma_sync_single_for_cpu(NULL, virt_to_bus((void *)(NOR_DATA_BASE+pa)), len, DMA_TO_DEVICE);. 因為我當時是從上一代的codes 來改的(老闆寫的阿), ... https://blog.xuite.net 驅動程式中的DMA問題@ Welkin小窩:: 痞客邦::
將cache中的資料和實體記憶體資料做同步的動作，其DMA_TO_DEVICE就是做invalidate的動作， 而DMA_FROM_DEVICE就是synchronize的動作，這些API必需要 ... http://welkinchen.pixnet.net Linux source code: DMA_TO_DEVICE identifier (v3.3) - Bootlin
Defined in 1 files: include/linux/dma-direction.h, line 9 (as a enumerator). Referenced in 394 files: arch/arm/common/dmabounce.c, 2 times ... https://elixir.bootlin.com Linux source code: DMA_TO_DEVICE identifier (v4.8) - Bootlin
Defined in 2 files: include/linux/dma-direction.h, line 9 (as a enumerator) · tools/virtio/linux/dma-mapping.h, line 12 (as a enumerator) ... https://elixir.bootlin.com Linux source code: DMA_TO_DEVICE identifier (v4.4) - Bootlin
Defined in 1 files: include/linux/dma-direction.h, line 9 (as a enumerator). Referenced in 525 files: arch/arc/include/asm/dma-mapping.h, 3 times ... https://elixir.bootlin.com Linux source code: DMA_TO_DEVICE identifier (v5.0.9) - Bootlin
Defined in 3 files: include/linux/dma-direction.h, line 7 (as a enumerator) · include/trace/events/rpcrdma.h, line 235 (as a variable) ... https://elixir.bootlin.com DMA API - Kernel.org
DMA_TO_DEVICE means "from main memory to the device" DMA_FROM_DEVICE means "from the device to main memory" It is the direction in which the data ... https://www.kernel.org here - Kernel.org
DMA_TO_DEVICE synchronisation must be done after the last modification of the memory region by the software and before it is handed off to the device. https://www.kernel.org linux之DMA动态映射指南- crazyjiang的专栏- CSDN博客
DMA动态映射指南. translated by JHJ([email protected]). 本文通过伪代码指导驱动开发者如何正确使用DMA API。关于API更精确的 ... https://blog.csdn.net mips一致性DMA映射、流式DMA映射的使用| Imagination中文技术社区
a、DMA_TO_DEVICE：把cache的数据刷回内存里，用于使能dma传输到外设之前。因为dma传输只会从内存拿数据，所以必须把cache的数据全部 ... http://imgtec.eetrend.com |