Intel's igt-gpu-tools FreeBSD Port Status Update #4

Hi there,

I am working on a port of Intel's igt-gpu-tools drm graphics driver
testing suite. I used this week to get FreeBSD's drm graphics driver,
drm-kmod, to compile with the CONFIG_DEBUG_FS flag enabled.

I ended up contributing a good amount of code to LinuxKPI, FreeBSD's
Linux compatibility layer. This code allows for debugfs files to be created
by graphics drivers like i915 and amdgpu for debugging purposes. These
files can later be read in the userspace through a debugfs mount.

I got drm-kmod to compile successfully with debugfs support, but I have
a few bugs left to fix. My plan is to have debugfs fully functional within
drm-kmod by the end of this upcoming week.

Thank you,
Jake Freeland