From patchwork Fri Apr 17 07:14:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Nowicki X-Patchwork-Id: 6228621 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1AE4B9F2EC for ; Fri, 17 Apr 2015 07:17:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4DF3920320 for ; Fri, 17 Apr 2015 07:17:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5FC7120328 for ; Fri, 17 Apr 2015 07:17:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753105AbbDQHPv (ORCPT ); Fri, 17 Apr 2015 03:15:51 -0400 Received: from mail-lb0-f179.google.com ([209.85.217.179]:35095 "EHLO mail-lb0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752481AbbDQHPs (ORCPT ); Fri, 17 Apr 2015 03:15:48 -0400 Received: by lbbuc2 with SMTP id uc2so76001090lbb.2 for ; Fri, 17 Apr 2015 00:15:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=0riZw77EPeVbBY3dFR+eNZDdYs6FQAnQVvh0LjUJz1c=; b=hQoEPXXsrIG8LHPJg2Lmkvs6K7RUo7Ycal9bOc4gdyN/p8kdl2f8ZTjDQnpGpehq1d HYfRiqdxbcgSsZZun8KrMIcii+MDiLU3beoNQTqrSPX5Jv9TIEhvptotq+iHwGs7hxWl qZpSV1DhGTyanBEx/RVQCQfSlIbxGyCVrrVqVW1EN01MKdviTrQxhehw5FKBILyIwD+A M4SCqjoetb6xoSSKnxSq5Ql68HJ1LTXz+HvCy2dV0PQgAFNKye56B6XDeUBcS3HRRAcZ 26X8PlpCu9qtW3VsfJEwmuLsF/xPNDiDUQUyAfKqtZT+2I+oLL3Mq0sDrkb6QyMn0C8Z RMPw== X-Gm-Message-State: ALoCoQnZ680u0m2hsYfERxY/So1e75VUTHw8M11/C62EZsHEQxzs+GMMc4aH+KU841QEm64S3aTL X-Received: by 10.152.22.229 with SMTP id h5mr1343258laf.21.1429254947435; Fri, 17 Apr 2015 00:15:47 -0700 (PDT) Received: from tn-HP-4.semihalf.local ([80.82.22.190]) by mx.google.com with ESMTPSA id yq18sm2215742lbb.47.2015.04.17.00.15.45 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 17 Apr 2015 00:15:46 -0700 (PDT) From: Tomasz Nowicki To: bhelgaas@google.com, wangyijing@huawei.com, arnd@arndb.de, hanjun.guo@linaro.org, Liviu.Dudau@arm.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, rjw@rjwysocki.net, al.stone@linaro.org, lorenzo.pieralisi@arm.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linaro-acpi@lists.linaro.org, Tomasz Nowicki Subject: [PATCH v5 5/9] pci, acpi, mcfg: Provide generic implementation of MCFG code initialization. Date: Fri, 17 Apr 2015 09:14:54 +0200 Message-Id: <1429254898-32743-6-git-send-email-tomasz.nowicki@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1429254898-32743-1-git-send-email-tomasz.nowicki@linaro.org> References: <1429254898-32743-1-git-send-email-tomasz.nowicki@linaro.org> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 First function acpi_mcfg_check_entry() does not apply any quirks by default. Last two functions are required by ACPI subsystem to make PCI config space accessible. Generic code assume to do nothing for early init call but late init call does as follow: - parse MCFG table and add regions to ECAM resource list - map regions - add regions to iomem_resource Signed-off-by: Tomasz Nowicki --- drivers/acpi/mcfg.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/acpi/mcfg.c b/drivers/acpi/mcfg.c index a9338df9..787defe 100644 --- a/drivers/acpi/mcfg.c +++ b/drivers/acpi/mcfg.c @@ -55,3 +55,29 @@ int __init acpi_parse_mcfg(struct acpi_table_header *header) return 0; } + +int __init __weak acpi_mcfg_check_entry(struct acpi_table_mcfg *mcfg, + struct acpi_mcfg_allocation *cfg) +{ + return 0; +} + +void __init __weak pci_mmcfg_early_init(void) +{ + +} + +void __init __weak pci_mmcfg_late_init(void) +{ + struct pci_mmcfg_region *cfg; + + acpi_table_parse(ACPI_SIG_MCFG, acpi_parse_mcfg); + + if (list_empty(&pci_mmcfg_list)) + return; + if (!pci_mmcfg_arch_init()) + free_all_mmcfg(); + + list_for_each_entry(cfg, &pci_mmcfg_list, list) + insert_resource(&iomem_resource, &cfg->res); +}