From owner-svn-src-stable-8@FreeBSD.ORG Wed Jun 22 07:18:15 2011 Return-Path: Delivered-To: svn-src-stable-8@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3E4CF1065672; Wed, 22 Jun 2011 07:18:15 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 1432D8FC13; Wed, 22 Jun 2011 07:18:15 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id p5M7IEWX037072; Wed, 22 Jun 2011 07:18:14 GMT (envelope-from avg@svn.freebsd.org) Received: (from avg@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id p5M7IEBj037069; Wed, 22 Jun 2011 07:18:14 GMT (envelope-from avg@svn.freebsd.org) Message-Id: <201106220718.p5M7IEBj037069@svn.freebsd.org> From: Andriy Gapon Date: Wed, 22 Jun 2011 07:18:14 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r223413 - in stable/8/sys: amd64/amd64 i386/i386 X-BeenThere: svn-src-stable-8@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for only the 8-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jun 2011 07:18:15 -0000 Author: avg Date: Wed Jun 22 07:18:14 2011 New Revision: 223413 URL: http://svn.freebsd.org/changeset/base/223413 Log: MFC r222756: don't use cpuid level 4 in x86 cpu topology detection if it's not supported Modified: stable/8/sys/amd64/amd64/mp_machdep.c stable/8/sys/i386/i386/mp_machdep.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/amd64/amd64/mp_machdep.c ============================================================================== --- stable/8/sys/amd64/amd64/mp_machdep.c Wed Jun 22 07:15:57 2011 (r223412) +++ stable/8/sys/amd64/amd64/mp_machdep.c Wed Jun 22 07:18:14 2011 (r223413) @@ -234,8 +234,11 @@ topo_probe_0x4(void) * logical processors that belong to the same core * as BSP thus deducing number of threads per core. */ - cpuid_count(0x04, 0, p); - max_cores = ((p[0] >> 26) & 0x3f) + 1; + if (cpu_high >= 0x4) { + cpuid_count(0x04, 0, p); + max_cores = ((p[0] >> 26) & 0x3f) + 1; + } else + max_cores = 1; core_id_bits = mask_width(max_logical/max_cores); if (core_id_bits < 0) return; Modified: stable/8/sys/i386/i386/mp_machdep.c ============================================================================== --- stable/8/sys/i386/i386/mp_machdep.c Wed Jun 22 07:15:57 2011 (r223412) +++ stable/8/sys/i386/i386/mp_machdep.c Wed Jun 22 07:18:14 2011 (r223413) @@ -288,8 +288,11 @@ topo_probe_0x4(void) * logical processors that belong to the same core * as BSP thus deducing number of threads per core. */ - cpuid_count(0x04, 0, p); - max_cores = ((p[0] >> 26) & 0x3f) + 1; + if (cpu_high >= 0x4) { + cpuid_count(0x04, 0, p); + max_cores = ((p[0] >> 26) & 0x3f) + 1; + } else + max_cores = 1; core_id_bits = mask_width(max_logical/max_cores); if (core_id_bits < 0) return;