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 02872CD3436 for ; Fri, 8 May 2026 04:36:11 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4gBbsW1nbLz2xdb; Fri, 08 May 2026 14:35:59 +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=1778214959; cv=none; b=Afn1MZ4tw59srSNSzEgfD7aqqNgUC7JBxyAeSWAwbalWffydAH+TRNK7GWNoKlmcAT4cHN8oZX/Og7RVU8VeEvY1zG8l58Mdvq0NLlhIbsaxLdGWi+RJpel+HB1r30IicpVO+dzr3hABwTplV3xTcCkzxabAtPvWX+2iNnCez3MqaYs/cJfCaUSV0ps5/AOVwum7TUkefijiHSOIft2hje1IUku3tb9d+HLQrbuONhTlWIXHCzJwrDkZyoLfgXy1EOH7VE5CHfMvLwZGjDqsNUNkMQrQzYAsdijzcS4f3PmflK9TJpNC2qFcc9YYDrMcT0OV3yGDKG6ghcL70vaiAg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1778214959; c=relaxed/relaxed; bh=J0zsLA5ryToNAxAxjQD54oSfvFP26rqE2yjtK6eduNM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mgqH6MwPB2NLuLCcsy9kZzXREuRE8W0v4i1FJLCW/BRgJEnDYjhEgwSjEDQhmQGk+b8FgwpJOYWS41rn7L8ymMfE5Ahuae7vkDG8OzSwyoVYWdlfACvfnpOKVho+VuJZQg0amilwjf5nHB+JFMnWNJjSL042Tw1NrNheRqKQLjSaQWJVx0lRGxPJs6zkKUPmUxtixRywvJEnRlIIUjIxLZg7KtxpjVPH6vxKRSZ2cupknPWUQI0v4kJZuk/Y3goS2EqE0/NC78CxV/jLne8K4lHJfqhesHW1fT2vhdqq2TfH9u4dGpS+zwXDFZtfcBUhtiqU+R+UsN68Y1GiMawfEA== 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=MC8img3f; 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=MC8img3f; 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) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4gBbsV2Vdsz2xPb for ; Fri, 08 May 2026 14:35:58 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 546EA60252; Fri, 8 May 2026 04:35:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9440C2BCB0; Fri, 8 May 2026 04:35:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778214956; bh=h+kJQeLZVqnSeeiwM2bc1dXa4IpY6mXgTH7Yn+fO0vY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MC8img3fZcoaufhCUHIjlXV78rrNtXBpZ+N+uy5+7qUzuQbCLewwJwHFiUaftpt5g LQjTggA6Mc1fJr8ckvs748ORbJ0NIw/Bqs6pS3FJ38ubwO6DVE1//XBEXr8bHndFVU pAJ3/4UASkP+vsfyDt2KLDLILYchQWVIvjlrcdoeb3Q98Od69syCOERuu6+bdY8vKZ 92sHhJjKfRPyAOJPUWEqEJE5g1VgHjlsYhdXhvoN2LvwHrSmjcMN8uusU94oiaC/eu HHNyYsa/J257vDG1DYYX3gVI0gfb9mR4CE9NURHOBL5QKSRN4T1kpq2nWqah/eh+j4 7YWsi91POa/nA== From: =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: Bjorn Helgaas , Manivannan Sadhasivam , Lorenzo Pieralisi , Alex Williamson , 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 v7 02/24] PCI: Add pci_resource_is_io() and pci_resource_is_mem() helpers Date: Fri, 8 May 2026 04:35:21 +0000 Message-ID: <20260508043543.217179-3-kwilczynski@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260508043543.217179-1-kwilczynski@kernel.org> References: <20260508043543.217179-1-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 Tested-by: Shivaprasad G Bhat 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 2c4454583c11..e93fbe6b57fe 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2300,6 +2300,31 @@ 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 -- 2.54.0