amd/amdfam10: Add runtime ACPI _PSS generation

Hardware / Coreboot - Timothy Pearson [raptorengineeringinc.com] - 28 January 2015 12:58 UTC

Skeleton and ACPI generator interface taken from model_fxx powernow_acpi.c Small portions of FIDVID MSR code taken from model_10xxx fidvid.c

Nearly completely rewritten for the P-state-based K10 CPU

TEST: KFSN4-DRE with dual Opteron 8356 CPUs
Verified CPU per-core dynamic state change with system load
Verified reported P-state count and frequencies Stress-tested each CPU (all cores simultaneously) to verify proper P0 transition and configuration.

Change-Id: Icf620ec96a3f163b62d96b5988184996641dd439

6300b03 amd/amdfam10: Add runtime ACPI _PSS generation
src/cpu/amd/model_10xxx/powernow_acpi.c | 228 ++++++++++++++++++++++++++++++-
1 file changed, 225 insertions(+), 3 deletions(-)

Upstream: review.coreboot.org

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