Family 15h

Family 15h
The die of a 6300-series Opteron, implementing the Piledriver microarchitecture.
Overview
Introduced	October 12, 2011
Process Node	GlobalFoundries 32nm SOI
Microarchitectures	Bulldozer Piledriver Steamroller Excavator
Chronology
Predecessor	Family 10h
Successor	Zen

Family 15h (also known as fam15h, or ambiguously as fam15) is a family of AMD microprocessors corresponding to the Bulldozer, Piledriver, Steamroller, and Excavator microarchitectures.

Like other AMD family names, 15h ("15 hexadecimal") is a mostly-arbitrary, somewhat-sequential (new processor families receive unused higher family numbers) number, returned by the x86 CPUID instruction as a "Family number", and commonly written in hexadecimal. 15 in hexadecimal corresponds to the number 21 in decimal, meaning that while "Family 21" would also be a valid, if confusing, name for these CPUs, "Family 15" could also refer to fam0Fh (K8 CPUs, first released in 2003).

Microcode

All microcode released after 10h are encrypted.

Below is the list of ucode versions that could be pulled from the container files in the linux kernel

commit	comment	date	ucode version	Microarchitecture
31f6b30	linux-firmware: Add AMD microcode patch firmware files	Jul 11 2013	06000822
8ac569d	linux-firmware: Update AMD microcode patch firmware files	Nov 30 2014	06000832
5f8ca0c	linux-firmware: Update AMD microcode patch firmware	Mar 18 2016	0600084f
7710151	linux-firmware: Update AMD cpu microcode	May 18 2018	06000852	Piledriver
7518922	Update AMD cpu microcode for family 15h	May 25 2018	0600063e	Bulldozer