> I was going to suggest something like in the patch below but I really
> don't know anything about the issues you described. What are their effects?
Ok PCI posting.
When you write to a PCI device the write or writes can be queued or bursted
together providing you dont do a read. Order is preserved so a read from PCI
space flushes writes first (you'll see some drivers do
writel
readl
delay
writel
For PCI delays - that is why.
Speculative reads arent a worry - it means the controller can read data
in any order it likes. We write all the data then link it in then write
to the control register so all is happy
>
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