Date: Thu, 19 Oct 2017 02:48:27 +0000 (UTC) From: Benjamin Kaduk <bjk@FreeBSD.org> 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 Message-ID: <201710190248.v9J2mR5W087341@repo.freebsd.org>
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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 @@ <partialsponsor>The &os; Foundation [2]</partialsponsor> </project> + <project cat="arch"> + <title>AMD Zen (family 17h) support</title> + + <contact> + <person> + <name> + <given>Conrad</given> + <common>Meyer</common> + <email>cem@FreeBSD.org</email> + </name> + </person> + </contact> + + <body> + <p>This quarter, a bit of work was done to enhance platform + support for AMD Zen (Ryzen, Threadripper, Epyc) processors:</p> + + <ul> + <li>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.</li> + + <li>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".</li> + + <li>The amdsmn(4) driver for accessing SMN (System Management + Network) registers was added.</li> + + <li>CPU temperature monitoring support for Zen was added to + amdtemp(4).</li> + + <li>In cpufreq(4): + <ul> + <li>Added support for decoding Zen P-state info from MSRs + (mostly not necessary due to ACPI P-state information, + but potentially useful)</li> + + <li>Work around the apparent Ryzen inability to achieve + the P1 state by not busying cores waiting to + transition.</li> + </ul> + </li> + + <li>The intpm(4) smbus driver was fixed to attach to FCH + (Fusion Controller Hub).</li> + + <li>All MCA banks are now enabled and monitored on Zen + CPUs.</li> + + <li>Feature bit decoding was added for: CLZERO, SVM features, + RAS capabilities.</li> + + <li>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.</li> + </ul> + + <p>Overall, Zen is now a very usable platform for x86 + workstations and servers.</p> + </body> + + <sponsor>Dell EMC Isilon</sponsor> + + <help> + <task>Add HWPMC support for new performance counters in + Zen.</task> + + <task>Add support for the CCP (Crypto Co-Processor).</task> + </help> + </project> </report>
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