src-test/sys/dev/amdsmn/amdsmn.h, branch main

src-test/sys/dev/amdsmn/amdsmn.h, branch main FreeBSD source tree https://cgit-dev.freebsd.org/src-test/atom?h=main 2017-09-05T15:13:41Z Add smn(4) driver for AMD System Management Network 2017-09-05T15:13:41Z Conrad Meyer cem@FreeBSD.org 2017-09-05T15:13:41Z urn:sha1:907f50fe04bdcbbe2b0606ca662ba662c44f6877 AMD Family 17h CPUs have an internal network used to communicate between the host CPU and the PSP and SMU coprocessors. It exposes a simple 32-bit register space. Reviewed by: avg (no +1), mjoras, truckman Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12217