On Thu, Mar 25, 2021 at 9:42 PM Andy Lutomirski <luto@xxxxxxxxxx> wrote: > Regardless of what you call AMX, AMX requires kernel enabling. I submit, that after the generic XFD support is in place, there is exactly 1 bit that needs to be flipped to enable user applications to benefit from AMX. I submit the patch that knows about AMX and double checks the state size is superfluous. I submit that updating /proc/cpuinfo is superfluous. What AMX-specific kernel enabling did I miss? > Specifically, it appears that leaving AMX in use in the XINUSE sense > degrades system performance and/or power. Please share the specifics about what performance or power issue you anticipate. thanks, -Len
