Just a quick fork to play around, please go to the main project page: https://github.com/clbr/radeontop
The aim is to have information of the GPU load to use in conky. See wiki pages for how I use it.
Be aware that I'm an early beginner in c. This code may be unstable.
This repository is not maintained, I just keep it in case someone would be interested in picking some part of the code.
Requires root rights or other permissions to /dev/mem.
R600 and up, even Southern Islands should work fine. Requires the open radeon drivers.