Nothing overly eventful today. Spent entirely too much time configuring my advogato statistics, project involvement statistics, and so forth. Managed to get mrbrown and zx80user up and running on advogato, that should prove to turn out interesting. Now I just need a decent console based tool for managing RSS feeds/subscriptions. Evolution seems to do this quite well, though unfortunately I'm not in X long enough in any given day for this to be overly useful.
Spent quite a bit of time getting irritated with the various DMA APIs in the kernel. The old API for PC-like ISA DMA would work quite well for me, except for the brain-dead PC/ISA assumptions about reserving a channel for cascading, having to keep track of a DMA buffer, and its inability to have any concept of DMA modes involving dual-addressing (or rather, specifying both SAR and DAR values per-channel without worrying about tracking a DMA buffer). This unfortunately creates quite a headache for both sh and sh64 where the vast majority of channels in the DMAC only support the dual modes. Which ultimately means that I'll probably have to end up doing this in some inane architecture-specific API fashion, which isn't particularly appealing.
After reading jejb's OLS paper on integrating DMA into the device model, I can't say that the new API seems to deal with any of this any better. Great. Looks like ugly architecture-specific API is the way to go..