From patchwork Mon Feb 2 02:43:01 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 5758111 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@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 12BF49F3CD for ; Mon, 2 Feb 2015 02:42:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 40D842034B for ; Mon, 2 Feb 2015 02:42:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 62CEE202AE for ; Mon, 2 Feb 2015 02:42:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932182AbbBBCl3 (ORCPT ); Sun, 1 Feb 2015 21:41:29 -0500 Received: from mga03.intel.com ([134.134.136.65]:26055 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932157AbbBBClZ (ORCPT ); Sun, 1 Feb 2015 21:41:25 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP; 01 Feb 2015 18:36:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="448488876" Received: from gerry-dev.bj.intel.com ([10.238.158.52]) by FMSMGA003.fm.intel.com with ESMTP; 01 Feb 2015 18:27:18 -0800 From: Jiang Liu To: "Rafael J. Wysocki" , Thomas Gleixner , Bjorn Helgaas , Yinghai Lu , Borislav Petkov , Lv Zheng , Len Brown Cc: Jiang Liu , Tony Luck , x86@kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [Patch v2 16/23] ACPI: Introduce helper function acpi_dev_filter_resource_type() Date: Mon, 2 Feb 2015 10:43:01 +0800 Message-Id: <1422844988-13854-17-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1422844988-13854-1-git-send-email-jiang.liu@linux.intel.com> References: <1422844988-13854-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@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 Introduce helper function acpi_dev_filter_resource_type(), which may be used by acpi_dev_get_resources() to filer out resource based on resource type. Signed-off-by: Jiang Liu --- drivers/acpi/resource.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 8 +++++++ 2 files changed, 63 insertions(+) diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 1c3abae6f2fa..3ea0d17eb951 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -569,3 +569,58 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, return c.count; } EXPORT_SYMBOL_GPL(acpi_dev_get_resources); + +/** + * acpi_dev_filter_resource_type - Filter ACPI resource according to resource + * types + * @ares: Input ACPI resource object. + * @types: Valid resource types of IORESOURCE_XXX + * + * This is a hepler function to support acpi_dev_get_resources(), which filters + * ACPI resource objects according to resource types. + */ +int acpi_dev_filter_resource_type(struct acpi_resource *ares, + unsigned long types) +{ + unsigned long type = 0; + + switch (ares->type) { + case ACPI_RESOURCE_TYPE_MEMORY24: + case ACPI_RESOURCE_TYPE_MEMORY32: + case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: + type = IORESOURCE_MEM; + break; + case ACPI_RESOURCE_TYPE_IO: + case ACPI_RESOURCE_TYPE_FIXED_IO: + type = IORESOURCE_IO; + break; + case ACPI_RESOURCE_TYPE_IRQ: + case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: + type = IORESOURCE_IRQ; + break; + case ACPI_RESOURCE_TYPE_DMA: + case ACPI_RESOURCE_TYPE_FIXED_DMA: + type = IORESOURCE_DMA; + break; + case ACPI_RESOURCE_TYPE_GENERIC_REGISTER: + type = IORESOURCE_REG; + break; + case ACPI_RESOURCE_TYPE_ADDRESS16: + case ACPI_RESOURCE_TYPE_ADDRESS32: + case ACPI_RESOURCE_TYPE_ADDRESS64: + case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64: + if (ares->data.address.resource_type == ACPI_MEMORY_RANGE) + type = IORESOURCE_MEM; + else if (ares->data.address.resource_type == ACPI_IO_RANGE) + type = IORESOURCE_IO; + else if (ares->data.address.resource_type == + ACPI_BUS_NUMBER_RANGE) + type = IORESOURCE_BUS; + break; + default: + break; + } + + return (type & types) ? 0 : 1; +} +EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 21dac3cb62d2..e818decb631f 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -310,6 +310,14 @@ void acpi_dev_free_resource_list(struct list_head *list); int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, int (*preproc)(struct acpi_resource *, void *), void *preproc_data); +int acpi_dev_filter_resource_type(struct acpi_resource *ares, + unsigned long types); + +static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, + void *arg) +{ + return acpi_dev_filter_resource_type(ares, (unsigned long)arg); +} int acpi_check_resource_conflict(const struct resource *res);