From owner-svn-src-all@FreeBSD.ORG Sun Nov 30 00:10:56 2008 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3A4AF106567B; Sun, 30 Nov 2008 00:10:56 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 2B8908FC1D; Sun, 30 Nov 2008 00:10:56 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id mAU0Au8S066290; Sun, 30 Nov 2008 00:10:56 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id mAU0AtBA066289; Sun, 30 Nov 2008 00:10:55 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <200811300010.mAU0AtBA066289@svn.freebsd.org> From: Alexander Motin Date: Sun, 30 Nov 2008 00:10:55 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r185460 - head/sys/amd64/amd64 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Nov 2008 00:10:56 -0000 Author: mav Date: Sun Nov 30 00:10:55 2008 New Revision: 185460 URL: http://svn.freebsd.org/changeset/base/185460 Log: According to "Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3B: System Programming Guide, Part 2", CPUs with family 0x6 and model above or 0xE and CPUs with family 0xF and model above or 0x3 have invariant TSC. Modified: head/sys/amd64/amd64/identcpu.c Modified: head/sys/amd64/amd64/identcpu.c ============================================================================== --- head/sys/amd64/amd64/identcpu.c Sun Nov 30 00:00:35 2008 (r185459) +++ head/sys/amd64/amd64/identcpu.c Sun Nov 30 00:10:55 2008 (r185460) @@ -368,7 +368,11 @@ printcpuinfo(void) tsc_is_invariant = 1; break; case CPU_VENDOR_INTEL: - if (amd_pminfo & AMDPM_TSC_INVARIANT) + if ((amd_pminfo & AMDPM_TSC_INVARIANT) || + (AMD64_CPU_FAMILY(cpu_id) == 0x6 && + AMD64_CPU_MODEL(cpu_id) >= 0xe) || + (AMD64_CPU_FAMILY(cpu_id) == 0xf && + AMD64_CPU_MODEL(cpu_id) >= 0x3)) tsc_is_invariant = 1; break; }