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ikwzm / udmabuf

User space mappable dma buffer device driver for Linux.
BSD 2-Clause "Simplified" License
545 stars 165 forks source link

Only able to make DMA transactions with v1.4.6 for AXI DMAC #53

Closed noelpedro closed 3 years ago

noelpedro commented 4 years ago

Hi Ichiro,

Just wanted to let you know that for ADI's AXI DMAC IP I was only able to make DMA transactions using udmabuf 1.4.6. I tried it for zynq 7000 vivado 2019.1. I tried u-dma-buf master branch and also version 1.4.8 for both of these my udmabuf didnt populate. Then I tried udmabuf 1.4.6 on the same HW and my dmabuffer began to fill with data.

ikwzm commented 4 years ago

Thank you for the issue.

I have never used ADI's AXI DMAC IP. Also, please report if you find out more details.