Interface for non-cached memory with userland control
Point was "not jhb" so take until we can find someone to run point on this, and put jhb in the cc: list to help finding a point person
Can we clarify what this means and what the goal is?
What's the envisioned use case? Graphics drivers, something else?
What requirements should the interface have?
Related to r337053 and https://reviews.freebsd.org/D15583 ? Current logic only allows UNCACHED mappings but perhaps the goal of this PR is an interface to change cacheability of mappings.
Whoops. Kernel interface supports any valid mapping type. pciconf -D only does UC, which is probably ok for that tool. Can this be resolved or did we have anything else in mind?