- Add a sysfs "force_idle" to forcibly idle the GPU
- read on this sysfs will return the current status
0 : not in idle (running)
1 : in forced idle state
"echo 1 > force_idle" will force the gpu into idle
"echo 0 > force_idle" will cause the gpu to resume
Bug 1376916
Bug 1487804
Change-Id: I48dfd52e0d14561220bc4baea0776d1bdfaa7ea5
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>