dma mask
2020年1月16日 — 默认情况下Linux认为设备DMA可以进行32位寻址。必须对DMA mask进行设置，将设备的DMA寻址能力通知内核。 int dma_set_mask_and_coherent(struct device * ... ,For correct operation, you must set the DMA mask to inform the kernel about your devices DMA ... DMA if the consistent DMA mask has been explicitly changed via ... ,2017年7月20日 — 要知道dma mask和coherent dma mask是不同的，除非驱动显示的调用dma_set_coherent_mask()接口来修改coherent dma mask，例如大小大于32-bit地址， ... ,2013年3月20日 — Better defining the meaning of a DMA mask (or, at least, ensuring that the kernel's interpretation of a mask adheres to the existing definition) ... ,2022年8月9日 — bus is in PCI-X mode. For correct operation, you must set the DMA mask to inform the kernel about your devices DMA addressing capabilities. ,2023年11月30日 — According to DMA API HOWTO I need to set the DMA mask using dma_set_mask_and_coherent() My device supports a DMA mask of 24 bits. Therefore I ... ,2023年12月9日 — 通过调用dma_set_mask()来设置流式映射：. int dma_set_mask(struct device *dev, u64 mask); ... ,For correct operation, you must set the DMA mask to inform the kernel about your devices DMA ... DMA if the consistent DMA mask has been explicitly changed via ... ,2011年11月9日 — dma_alloc_coherent会调用__dma_alloc，__dma_alloc判断是否从DMA ZONE申请内存的依据是：. u64 mask = get_coherent_dma_mask(dev); … if (mask < ...
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 dma mask 相關參考資料
Linux动态DMA映射- yanceylu
2020年1月16日 — 默认情况下Linux认为设备DMA可以进行32位寻址。必须对DMA mask进行设置，将设备的DMA寻址能力通知内核。 int dma_set_mask_and_coherent(struct device * ... https://www.cnblogs.com DMA-API-HOWTO.txt
For correct operation, you must set the DMA mask to inform the kernel about your devices DMA ... DMA if the consistent DMA mask has been explicitly changed via ... https://www.kernel.org Dynamic DMA mapping Guide
2017年7月20日 — 要知道dma mask和coherent dma mask是不同的，除非驱动显示的调用dma_set_coherent_mask()接口来修改coherent dma mask，例如大小大于32-bit地址， ... http://www.wowotech.net The trouble with DMA masks
2013年3月20日 — Better defining the meaning of a DMA mask (or, at least, ensuring that the kernel's interpretation of a mask adheres to the existing definition) ... https://lwn.net linux dma_set_mask DMA寻址能力原创
2022年8月9日 — bus is in PCI-X mode. For correct operation, you must set the DMA mask to inform the kernel about your devices DMA addressing capabilities. https://blog.csdn.net dma_set_mask_and_coherent() with 24-bit DMA mask for ...
2023年11月30日 — According to DMA API HOWTO I need to set the DMA mask using dma_set_mask_and_coherent() My device supports a DMA mask of 24 bits. Therefore I ... https://stackoverflow.com 动态DMA映射指南【ChatGPT】 - 摩斯电码
2023年12月9日 — 通过调用dma_set_mask()来设置流式映射：. int dma_set_mask(struct device *dev, u64 mask); ... https://www.cnblogs.com Dynamic DMA mapping Guide — The Linux Kernel 5.10.0 ...
For correct operation, you must set the DMA mask to inform the kernel about your devices DMA ... DMA if the consistent DMA mask has been explicitly changed via ... https://www.infradead.org dma_mask、coherent_dma_mask和dma bounce相关问题 ...
2011年11月9日 — dma_alloc_coherent会调用__dma_alloc，__dma_alloc判断是否从DMA ZONE申请内存的依据是：. u64 mask = get_coherent_dma_mask(dev); … if (mask < ... https://blog.csdn.net |