Re: MI overrides of bus_dma(9), bus_space(9), pci(9)

[Izumi Tsutsui]

> MI overrides of bus_space(9) and bus_dma(9) will work analogously to the
> above.

- Are those overrides mandatory or optional?
- How much performance impact is expected for bus_space(9) changes
  on ports that use macro for access functions?
- Could you show specific examples of exceptions, resouce management
  for bus_space(9) and bus_dma(9) too?

---
Izumi Tsutsui