9fe64a3aa6
- add a dma hack similar to the NetBSD one - change PDQ_OS_MEM{RD,WR} to use readl/writel rather than deref'ing a 32 bit va. Note that I did just enough to get this working on alpha. I probably should have updated it to use busspace, but I was too lazy to navigate the twisty minefield of ifdefs that make up this driver. Tested by: wilko (on both x86 and alpha)