From patchwork Tue May 31 12:05:09 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 9144685 X-Patchwork-Delegate: bhelgaas@google.com 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 24F6160757 for ; Tue, 31 May 2016 12:06:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 18013272D8 for ; Tue, 31 May 2016 12:06:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0CB2A27E72; Tue, 31 May 2016 12:06:34 +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 7086B272D8 for ; Tue, 31 May 2016 12:06:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753669AbcEaMFe (ORCPT ); Tue, 31 May 2016 08:05:34 -0400 Received: from mx2.suse.de ([195.135.220.15]:58800 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751023AbcEaMF3 (ORCPT ); Tue, 31 May 2016 08:05:29 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 42AB0AAEF; Tue, 31 May 2016 12:05:28 +0000 (UTC) From: Johannes Thumshirn To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Johannes Thumshirn Subject: [PATCH 1/5] PCI: Add helpers to request/release memory and I/O regions Date: Tue, 31 May 2016 14:05:09 +0200 Message-Id: X-Mailer: git-send-email 1.8.5.6 In-Reply-To: References: In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add helpers to request and release a device's memory or I/O regions. With these helpers in place, one does not need to select a device's memory or I/O regions with pci_select_bars() prior to requesting or releasing them. Suggested-by: Christoph Hellwig Signed-off-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig --- include/linux/pci.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/include/linux/pci.h b/include/linux/pci.h index 932ec74..846f4cf 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2007,6 +2007,35 @@ static inline bool pci_is_dev_assigned(struct pci_dev *pdev) return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED; } +static inline int +pci_request_io_regions(struct pci_dev *pdev, const char *name) +{ + return pci_request_selected_regions(pdev, + pci_select_bars(pdev, IORESOURCE_IO), name); +} + +static inline void +pci_release_io_regions(struct pci_dev *pdev) +{ + return pci_release_selected_regions(pdev, + pci_select_bars(pdev, IORESOURCE_IO)); +} + +static inline int +pci_request_mem_regions(struct pci_dev *pdev, const char *name) +{ + return pci_request_selected_regions(pdev, + pci_select_bars(pdev, IORESOURCE_MEM), name); +} + +static inline void +pci_release_mem_regions(struct pci_dev *pdev) +{ + return pci_release_selected_regions(pdev, + pci_select_bars(pdev, + IORESOURCE_MEM)); +} + /** * pci_ari_enabled - query ARI forwarding status * @bus: the PCI bus