https://bugs.freedesktop.org/show_bug.cgi?id=96964
--- Comment #6 from Timothy Pearson kb9vqf@pearsoncomputing.net --- (In reply to John Bridgman from comment #5)
At the risk of sending things off in the wrong direction, my first thought is some kind of funky data caching thing when reading GRBM_STATUS using POWER hardware.
If bit 31 were always 1 and the other bits were behaving normally then the idea of being stuck at 100% load would make more sense, but bit 31 stuck at 1 and all the rest stuck at 0 seems really odd.
If it were a data caching issue, how would the GPU crash / soft reset fix it?