From patchwork Tue Aug 20 09:30:07 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep KarkadaNagesha X-Patchwork-Id: 2846971 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F076A9F271 for ; Tue, 20 Aug 2013 09:35:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5AAFC20483 for ; Tue, 20 Aug 2013 09:35:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 419BF2047D for ; Tue, 20 Aug 2013 09:35:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751865Ab3HTJef (ORCPT ); Tue, 20 Aug 2013 05:34:35 -0400 Received: from service87.mimecast.com ([91.220.42.44]:34491 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751032Ab3HTJaO (ORCPT ); Tue, 20 Aug 2013 05:30:14 -0400 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Tue, 20 Aug 2013 10:30:12 +0100 Received: from e103737-lin.cambridge.arm.com ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 20 Aug 2013 10:30:10 +0100 From: Sudeep KarkadaNagesha To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Sudeep.KarkadaNagesha@arm.com, Viresh Kumar , Greg Kroah-Hartman , Benjamin Herrenschmidt , Jonas Bonn , Michal Simek , "Rafael J. Wysocki" , Grant Likely , Rob Herring , Sudeep KarkadaNagesha , Russell King , Lorenzo Pieralisi Subject: [PATCH v4 05/19] ARM: DT/kernel: define ARM specific arch_match_cpu_phys_id Date: Tue, 20 Aug 2013 10:30:07 +0100 Message-Id: <1376991021-12160-6-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1376991021-12160-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> References: <1374492747-13879-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> <1376991021-12160-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-OriginalArrivalTime: 20 Aug 2013 09:30:10.0927 (UTC) FILETIME=[DDE56FF0:01CE9D87] X-MC-Unique: 113082010301202701 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-9.7 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 Acked-by: Nicolas Pitre Signed-off-by: Sudeep KarkadaNagesha --- 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