src-test2/sys/dev/amdsmn, branch release/11.4.0

MFC r350624 (by cem):

2019-12-09T17:14:43Z

amdtemp(4), amdsmn(4): Attach to Ryzen 3 (Zen 2) hostbridges PR: 239607

MFC r342977 (by cem): amdtemp(4): Add support for Family 15h, Model >=60h

2019-01-22T21:35:25Z

Family 15h is a bit of an oddball. Early models used the same temperature register and spec (mostly[1]) as earlier CPU families. Model 60h-6Fh and 70-7Fh use something more like Family 17h's Service Management Network, communicating with it in a similar fashion. To support them, add support for their version of SMU indirection to amdsmn(4) and use it in amdtemp(4) on these models. While here, clarify some of the deviceid macros in amdtemp(4) that were added with arbitrary, incorrect family numbers, and remove ones that were not used. Additionally, clarify intent and condition of heterogenous multi-socket system detection. [1]: 15h adds the "adjust range by -49°C if a certain condition is met," which previous families did not have. Reported by: D. C. PR: 234657 Tested by: D. C.

MFC r340425 (by cem): amdsmn(4)/amdtemp(4): Attach to Ryzen 2 hostbridges

2019-01-22T21:33:14Z

As reported, tested, and patch supplied by Johannes. There may be future work to do to support multiple sensors, but for now, any sensor at all is a strict improvement for Ryzen 2 systems. PR: 228480 Submitted by: Johannes Lundberg (earlier version) Reported by: deischen@, Johannes, and numerous others

MFC r323067, r323184, r323185, r323195, r323196 (by cem)

2018-02-22T00:36:12Z

------------------------------------------------------------------------ r323067 | cem | 2017-08-31 11:39:18 -0700 (Thu, 31 Aug 2017) | 4 lines amdtemp.4: Update BKDG URL to current location Sponsored by: Dell EMC Isilon ------------------------------------------------------------------------ r323184 | cem | 2017-09-05 08:13:41 -0700 (Tue, 05 Sep 2017) | 10 lines Add smn(4) driver for AMD System Management Network 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 ------------------------------------------------------------------------ r323185 | cem | 2017-09-05 08:19:14 -0700 (Tue, 05 Sep 2017) | 13 lines amdtemp(4): Add support for Family 17h temperature sensor The sensor value is formatted similarly to previous models (same bitfield sizes, same units), but must be read off of the internal System Management Network (SMN) from the System Management Unit (SMU) co-processor. PR: 218264 Reported and tested by: Nils Beyer Reviewed by: avg (no +1), mjoras, truckman Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12217 ------------------------------------------------------------------------ r323195 | cem | 2017-09-05 13:35:25 -0700 (Tue, 05 Sep 2017) | 8 lines amdtemp(4): Do not probe not matching hostbridges Some systems have hostbs that do not match our PCI device id criteria. Detect and ignore these devices in probe. PR: 218264 Sponsored by: Dell EMC Isilon ------------------------------------------------------------------------ r323196 | cem | 2017-09-05 14:00:33 -0700 (Tue, 05 Sep 2017) | 8 lines amdsmn(4): Do not probe not matching hostbridges Similar to r323195, but for amdsmn(4) driver (which borrowed some design). Ignore hostbs that do not match our PCI device id criteria. Sponsored by: Dell EMC Isilon PR: 218264 Differential Revision: https://reviews.freebsd.org/D12217