From owner-svn-src-stable@freebsd.org Wed Jul 22 21:17:03 2020 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 7EEEB361984; Wed, 22 Jul 2020 21:17:03 +0000 (UTC) (envelope-from jkim@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BBpFC2qxpz4n1L; Wed, 22 Jul 2020 21:17:03 +0000 (UTC) (envelope-from jkim@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 40214DE05; Wed, 22 Jul 2020 21:17:03 +0000 (UTC) (envelope-from jkim@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 06MLH3EH070458; Wed, 22 Jul 2020 21:17:03 GMT (envelope-from jkim@FreeBSD.org) Received: (from jkim@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 06MLH3Hq070457; Wed, 22 Jul 2020 21:17:03 GMT (envelope-from jkim@FreeBSD.org) Message-Id: <202007222117.06MLH3Hq070457@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jkim set sender to jkim@FreeBSD.org using -f From: Jung-uk Kim Date: Wed, 22 Jul 2020 21:17:03 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r363433 - in stable: 11/sys/x86/x86 12/sys/x86/x86 X-SVN-Group: stable-12 X-SVN-Commit-Author: jkim X-SVN-Commit-Paths: in stable: 11/sys/x86/x86 12/sys/x86/x86 X-SVN-Commit-Revision: 363433 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jul 2020 21:17:03 -0000 Author: jkim Date: Wed Jul 22 21:17:02 2020 New Revision: 363433 URL: https://svnweb.freebsd.org/changeset/base/363433 Log: MFC: r362509 Assume all TSCs are synchronized for AMD Family 17h processors and later when it has passed the synchronization test. Modified: stable/12/sys/x86/x86/tsc.c Directory Properties: stable/12/ (props changed) Changes in other areas also in this revision: Modified: stable/11/sys/x86/x86/tsc.c Directory Properties: stable/11/ (props changed) Modified: stable/12/sys/x86/x86/tsc.c ============================================================================== --- stable/12/sys/x86/x86/tsc.c Wed Jul 22 21:06:32 2020 (r363432) +++ stable/12/sys/x86/x86/tsc.c Wed Jul 22 21:17:02 2020 (r363433) @@ -530,6 +530,13 @@ retry: case CPU_VENDOR_AMD: case CPU_VENDOR_HYGON: /* + * Processor Programming Reference (PPR) for AMD + * Family 17h states that the TSC uses a common + * reference for all sockets, cores and threads. + */ + if (CPUID_TO_FAMILY(cpu_id) >= 0x17) + return (1000); + /* * Starting with Family 15h processors, TSC clock * source is in the north bridge. Check whether * we have a single-socket/multi-core platform.