soc/amd/stoneyridge/cpu: implement get_pstate_latency

Both the algorithm and the registers involved are described in the
public version of BKDG #55072 Rev 3.09 in chapter 2.5.2.1.7.3.2 _PSS
(Performance Supported States).

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9b2c177d9d80c5c205340f3f428186d6b8eb7e98
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74025
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

0 files changed, 0 insertions, 0 deletions