AMD A8-3870K with FreeBSD 9.0

[perryh at pluto.rain.com]

Kevin Oberman <kob6558 at gmail.com> wrote:

> KMS requires a custom kernel that knows a great deal
> about a specific graphics chip-set.

Is it strictly necessary for the chipset-specific code to be _in
the kernel_?  While I/O-specific opcodes can only be executed with
kernel privilege, it seems as if it "should" be possible to cover
that requirement with a generic ioctl capability; and memory-mapped
I/O can presumably be done from userland once the driver sets up
the address space appropriately.