From patchwork Thu Sep 8 22:26:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: srinivas pandruvada X-Patchwork-Id: 9322207 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C703F60869 for ; Thu, 8 Sep 2016 22:29:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CD74229A26 for ; Thu, 8 Sep 2016 22:29:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C1FE729A27; Thu, 8 Sep 2016 22:29:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6FE7D29A26 for ; Thu, 8 Sep 2016 22:29:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965509AbcIHW2m (ORCPT ); Thu, 8 Sep 2016 18:28:42 -0400 Received: from mga06.intel.com ([134.134.136.31]:37131 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758957AbcIHW1E (ORCPT ); Thu, 8 Sep 2016 18:27:04 -0400 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP; 08 Sep 2016 15:27:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.30,302,1470726000"; d="scan'208";a="1053344263" Received: from spandruv-desk.jf.intel.com ([10.54.75.13]) by fmsmga002.fm.intel.com with ESMTP; 08 Sep 2016 15:27:00 -0700 From: Srinivas Pandruvada To: rjw@rjwysocki.net, tglx@linutronix.de, mingo@redhat.com, bp@suse.de Cc: x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, peterz@infradead.org, tim.c.chen@linux.intel.com, Srinivas Pandruvada Subject: [PATCH v3 3/8] x86, cpu: provide a function topology_num_packages to enumerate #packages Date: Thu, 8 Sep 2016 15:26:50 -0700 Message-Id: <1473373615-51427-4-git-send-email-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1473373615-51427-1-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1473373615-51427-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tim Chen We compute the the number of active packages during boot and topology update. Provide a function to export this info for functions that need this topology info. Signed-off-by: Tim Chen Signed-off-by: Srinivas Pandruvada --- arch/x86/include/asm/topology.h | 1 + arch/x86/kernel/smpboot.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 98b669d..0bcf3b7 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -129,6 +129,7 @@ static inline int topology_max_smt_threads(void) } int topology_update_package_map(unsigned int apicid, unsigned int cpu); +extern int topology_num_packages(void); extern int topology_phys_to_logical_pkg(unsigned int pkg); #else #define topology_max_packages() (1) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 3782bd4..292df31 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -297,6 +297,11 @@ found: return 0; } +int topology_num_packages(void) +{ + return logical_packages; +} + /** * topology_phys_to_logical_pkg - Map a physical package id to a logical *