From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 57AACF8D763 for ; Thu, 16 Apr 2026 18:01:31 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fxQmy3Zdtz2yVt; Fri, 17 Apr 2026 04:01:22 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776362482; cv=none; b=WQAZQx7IsgFNp/eyArKNH9IZP9Oup6W+3bsGRZRZPP5cVAuARgsu8dfB+dLyyfQJ10FkxLpxgXlvhBITcZX2/7pnbbyyfSvgvj0tVRPH4Y2WQyOP+NmTAzhCbR+D2oJoidwz8Tmj2or3cyR0OKCZ20n7WbK7u/3S/8cE8yMDf3ew0703N64eacTeU9w5Bno0UslBCTVAwsuS50kqw/sUlTCcYTw1bsb47DdXZqU9Kj/mkoR3VlWZp8mgouq4fYv3/ACiZh2Kf3yqADqKPEXCQU5RRNd+2vTni0h38rGz3pq05WlRghRkpTKf7/pmfiQAGnwAp0TP0UBFs64A7WdcKw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776362482; c=relaxed/relaxed; bh=f5kw6fAL1k+I6vk4AeGNZzNqrlSKme7PMiRYRjxtndM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=A91nQ/GwXu4ft22vcQcpbPR5yRJKXKKH4prwaHqNrx6/1mey85GjmgjKcxfw/7eQK6pwMhEnmUhWLrnENnmJXs2UWnVfNlbHYWRizHBRNYr5OlHd9+gQ7ihDk2pY6rSlPNdUalz+kfXmuUjNs/crxQ3mBscq8XF8sIUW6uwYek2Rblbq6u6L/sqe8Gie1pdteekOECzregEZ5CJDLsvRlyUVuwXg0AXaonpNNs3P1EaBznxlZW7yOJOrddl2jNXV98uHpV1QjrqlkUoi/SeAgN7Ix1U5q/H1yBayFbT8i9jgDKrJWifUSPZADKMkhCmBVDCP++3C/cULvL9ZRFbT/A== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=jhDIn5ob; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=kwilczynski@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=jhDIn5ob; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=kwilczynski@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4fxQmx4zNHz307K for ; Fri, 17 Apr 2026 04:01:21 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 62EFC60128; Thu, 16 Apr 2026 18:01:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E1BBBC2BCB0; Thu, 16 Apr 2026 18:01:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776362479; bh=YIttpolP3T9Rtoh+8QuVP7we/qYNmLLFIkVz3rrJ9lw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jhDIn5obw6IeC6kdhLIU1ClJzw1Dr2WgI1dbwmIhd5yqn2IFH9T2gmeK99KftJ2or qJqvziaHui3mdEWT+BHowEqfYxImPAaJFWAO1bTUI8b6f0DUxfqgL7/fCy0sdxsEOc n4rqYBPJXgYYUeptAJ0i+YVSdWLJv7EYW7HZGqjGDyS1DzrdXeG1EDdWfkZh/2PY/j Srf3zyKLVpNA70sai3tgkwUWUkepPO4jygfHFetI9lnJ4nPspy1AKTqJlx6jb16LNp +B+s5HaBabtB4zfjEB3MYZxM6BzLfARSA2liAMTCMmBW45CsIXWZzV1q85HpyufFpQ 3RRVoLhXnNLeg== From: =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: Bjorn Helgaas , Manivannan Sadhasivam , Lorenzo Pieralisi , Magnus Lindholm , Matt Turner , Richard Henderson , Christophe Leroy , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Dexuan Cui , =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= , Lukas Wunner , "Oliver O'Halloran" , Saurabh Singh Sengar , Shuan He , Srivatsa Bhat , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , linux-pci@vger.kernel.org, linux-alpha@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v5 02/23] PCI: Add pci_resource_is_io() and pci_resource_is_mem() helpers Date: Thu, 16 Apr 2026 18:00:46 +0000 Message-ID: <20260416180107.777065-3-kwilczynski@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260416180107.777065-1-kwilczynski@kernel.org> References: <20260416180107.777065-1-kwilczynski@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add helpers to check whether a PCI resource is of I/O port or memory type. These replace the open-coded pci_resource_flags() with IORESOURCE_IO and IORESOURCE_MEM pattern used across the tree. Suggested-by: Ilpo Järvinen Reviewed-by: Ilpo Järvinen Signed-off-by: Krzysztof Wilczyński --- include/linux/pci.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/include/linux/pci.h b/include/linux/pci.h index 1c270f1d5123..05aceb7f1f37 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2295,6 +2295,31 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); CONCATENATE(__pci_dev_for_each_res, COUNT_ARGS(__VA_ARGS__)) \ (dev, res, __VA_ARGS__) +/** + * pci_resource_is_io - check if a PCI resource is of I/O port type. + * @dev: PCI device to check. + * @resno: The resource number (BAR index) to check. + * + * Returns true if the resource type is I/O port. + */ +static inline bool pci_resource_is_io(const struct pci_dev *dev, int resno) +{ + return resource_type(pci_resource_n(dev, resno)) == IORESOURCE_IO; +} + +/** + * pci_resource_is_mem - check if a PCI resource is of memory type. + * @dev: PCI device to check. + * @resno: The resource number (BAR index) to check. + * + * Returns true if the resource type is memory, including + * prefetchable memory. + */ +static inline bool pci_resource_is_mem(const struct pci_dev *dev, int resno) +{ + return resource_type(pci_resource_n(dev, resno)) == IORESOURCE_MEM; +} + /* * Similar to the helpers above, these manipulate per-pci_dev * driver-specific data. They are really just a wrapper around -- 2.53.0