From owner-svn-doc-head@freebsd.org Thu Oct 19 02:48:29 2017 Return-Path: Delivered-To: svn-doc-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F3DEAE4BE94; Thu, 19 Oct 2017 02:48:28 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CDD28742B8; Thu, 19 Oct 2017 02:48:28 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v9J2mR28087342; Thu, 19 Oct 2017 02:48:27 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v9J2mR5W087341; Thu, 19 Oct 2017 02:48:27 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201710190248.v9J2mR5W087341@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Thu, 19 Oct 2017 02:48:27 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r51135 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head X-SVN-Commit-Author: bjk X-SVN-Commit-Paths: head/en_US.ISO8859-1/htdocs/news/status X-SVN-Commit-Revision: 51135 X-SVN-Commit-Repository: doc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Oct 2017 02:48:29 -0000 Author: bjk Date: Thu Oct 19 02:48:27 2017 New Revision: 51135 URL: https://svnweb.freebsd.org/changeset/doc/51135 Log: Add 2017Q3 AMD Zen architecture support entry from cem Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2017-07-2017-09.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2017-07-2017-09.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2017-07-2017-09.xml Thu Oct 19 02:08:24 2017 (r51134) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2017-07-2017-09.xml Thu Oct 19 02:48:27 2017 (r51135) @@ -180,4 +180,78 @@ The &os; Foundation [2] + + AMD Zen (family 17h) support + + + + + Conrad + Meyer + cem@FreeBSD.org + + + + + +

This quarter, a bit of work was done to enhance platform + support for AMD Zen (Ryzen, Threadripper, Epyc) processors:

+ +
    +
  • The CPU topology detection code was enhanced to properly + detect Zen dies and CCXes. This gives the scheduler more + locality information to make scheduling decisions.
    • + +
  • The x86 topology analysis was enhanced to report dies and + CCXes, in addition to the existing reporting on packages, + cores, and threads. An example of the new output is + "FreeBSD/SMP: 1 package(s) x 2 groups x 2 cache groups + x 4 core(s) x 2 hardware threads".
    • + +
  • The amdsmn(4) driver for accessing SMN (System Management + Network) registers was added.
    • + +
  • CPU temperature monitoring support for Zen was added to + amdtemp(4).
    • + +
  • In cpufreq(4): +
      +
    • Added support for decoding Zen P-state info from MSRs + (mostly not necessary due to ACPI P-state information, + but potentially useful)
      • + +
    • Work around the apparent Ryzen inability to achieve + the P1 state by not busying cores waiting to + transition.
      • +
    +
    • + +
  • The intpm(4) smbus driver was fixed to attach to FCH + (Fusion Controller Hub).
    • + +
  • All MCA banks are now enabled and monitored on Zen + CPUs.
    • + +
  • Feature bit decoding was added for: CLZERO, SVM features, + RAS capabilities.
    • + +
  • SHA intrinsic support was added to the aesni(4) driver. + Ryzen is currently the only desktop processor to feature + these intrinsics. Support is also present in Intel's + Goldmont line of low end SoCs.
    • +
+ +

Overall, Zen is now a very usable platform for x86 + workstations and servers.

+ + + Dell EMC Isilon + + + Add HWPMC support for new performance counters in + Zen. + + Add support for the CCP (Crypto Co-Processor). + +