[Nouveau] NvClkMode and NvMemExec Options

[Joseph D. Wagner]

When using the nouveau driver, my screen freezes (and stays frozen) when 
it starts to more than a minimum amount of work.  To fix this, I've been 
using the nvidia driver with the Preferred Mode set to Prefer Maximum 
Performance.

It looks like equivalent settings in nouveau are NvClkMode and 
NvMemExec.  However, I didn't see any documentation specifying the valid 
options for these settings?

What are the valid options for NvClkMode?

What are the valid options for NvMemExec?

Thanks.

Joseph D. Wagner