arch-vega: implement S_GETREG_B32 instruction

This commit adds support for the Vega GPU ISA's S_GETREG_B32
instruction.

This work was done by Charles Jamieson but I am committing.

Change-Id: Ic2e24f667ed1aec7b8b1404a06e17e7ffb192fba
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/60589
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Maintainer: Matthew Poremba <matthew.poremba@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed