From patchwork Mon Jul 22 11:32:13 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep KarkadaNagesha X-Patchwork-Id: 2831299 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 678FDC0319 for ; Mon, 22 Jul 2013 11:37:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8E0FE201E2 for ; Mon, 22 Jul 2013 11:37:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 92418201DE for ; Mon, 22 Jul 2013 11:37:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757452Ab3GVLcn (ORCPT ); Mon, 22 Jul 2013 07:32:43 -0400 Received: from service87.mimecast.com ([91.220.42.44]:36180 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757290Ab3GVLcl (ORCPT ); Mon, 22 Jul 2013 07:32:41 -0400 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Mon, 22 Jul 2013 12:32:37 +0100 Received: from e103737-lin.cambridge.arm.com ([10.1.255.212]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.0); Mon, 22 Jul 2013 12:32:35 +0100 From: Sudeep KarkadaNagesha To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org Cc: Sudeep.KarkadaNagesha@arm.com, Russell King , Shawn Guo , Gregory Clement , Greg Kroah-Hartman , Viresh Kumar , "Rafael J. Wysocki" , Grant Likely , Rob Herring , Lorenzo Pieralisi , Olof Johansson , Arnd Bergmann , Sudeep KarkadaNagesha Subject: [PATCH v3 02/16] ARM: DT/kernel: define ARM specific arch_match_cpu_phys_id Date: Mon, 22 Jul 2013 12:32:13 +0100 Message-Id: <1374492747-13879-3-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1374492747-13879-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> References: <1374069984-20567-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> <1374492747-13879-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-OriginalArrivalTime: 22 Jul 2013 11:32:35.0843 (UTC) FILETIME=[29D3ED30:01CE86CF] X-MC-Unique: 113072212323714201 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sudeep KarkadaNagesha OF/DT core library now provides architecture specific hook to match the logical cpu index with the corresponding physical identifier. Most of the cpu DT node parsing and initialisation is contained in devtree.c. So it's better to define ARM specific arch_match_cpu_phys_id there. This mainly helps to avoid replication of the code doing CPU node parsing and physical(MPIDR) to logical mapping. Cc: Russell King Cc: Lorenzo Pieralisi Acked-by: Rob Herring Signed-off-by: Sudeep KarkadaNagesha Acked-by: Nicolas Pitre --- arch/arm/kernel/devtree.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index 5859c8b..2ee8a17 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -169,6 +169,11 @@ void __init arm_dt_init_cpu_maps(void) } } +bool arch_match_cpu_phys_id(int cpu, u64 phys_id) +{ + return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu); +} + /** * setup_machine_fdt - Machine setup when an dtb was passed to the kernel * @dt_phys: physical address of dt blob