On 15/01/2015 00:20, Scott Feldman wrote: > I tried setting .impl.max_access_size=4 and the Linux driver self-test > fails on 64-bit reg write/read. 32-bit regs writes/reads are OK. On > the 64-bit write/read, the self test writes a value and expects to > read back 2x the value written. After making the change > .impl.max_access_size=4, the reg reads back as 0, regardless of what > was written.
It would be a bug. I can try to look at it later. Paolo > The driver uses writeq/readq for 64-bit writes/reads. > > I'm inclined to not change the device and leave .impl.max_access_size=8.