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                                            Dmitry

XDMA driver timeout in poll mode , can't work properly

Hi @LNC0831. Have you tried alanbl's patch set?

XDMA driver timeout in poll mode , can't work properly

See the link #240 For AXI bus diagnostics I recommend using System ILA with Protocol Checker enabled, or standalone Protocol Checker IP, set a trigger on error detecton signal and...

XDMA driver timeout in poll mode , can't work properly

> That means Poll_mode is unfeasible plan in the ARM linux system? It definitely works on aarch64 (iMX8M) and I don't see why it would not on 32-bit ARM. RK3588...

XDMA driver timeout in poll mode , can't work properly

> But it truly can not run by poll_mode ,I use the TI-5718 chip to test interrupt and poll_mode ,interrupt is not stable ,but it works , poll_mode always overtime...

XDMA data corruption issue (0xFFFFFFFF every other read) was fixed yet was not mentioned anywhere

Hi @jason77-wang. In your log there is a failed transaction. The driver says it's because of a timeout but as you've got 0xffffffff from ioread32 I can say it's a...

7022 (rev ff)

#317

xdma error : Failed to dump register

#317

The xdma combined with bram test succeeded, but the test failed when replaced with ddr4

Hi @LOCKEDGATE. Based on "write file: Unknown error 512" I assume you are not using alonbl's latest patch #240 . Give it a try, it may fix your issue. Based...

XDMA poor performance and high latency spikes explained and fixed

Hi @zhaochengjie0405, that's how polling works, it polls something in a loop until loop break condition happens. In your case poll mode itself does not work for some reason, so...

XDMA: Implementation of bypass BAR seems to make no sense

Hi Prandr, if your findings are correct, this is an epic fail from Xilinx. Just like the whole XDMA, so at least they kept their style consistent. So DMA Bypass...