From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F11E1EE01A; Fri, 8 May 2026 04:35:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778214956; cv=none; b=IgnNYGNDDdxGqvl3gK57WxnFhx/d5czmor6ND8rY6x28IR7Bg6Ycvb4lzPL5NQ7vyFRKc8tKgxREhdQnSqvN39Fap91rbI3YUcW5J0qYW+eEPF0myGRFYYSL76XuK2X0Paem8B5iQ6OBf8VfBtugs1T/9DkOGxDp3Hmd42Tv2RA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778214956; c=relaxed/simple; bh=h+kJQeLZVqnSeeiwM2bc1dXa4IpY6mXgTH7Yn+fO0vY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NVMbEv76R8BEnSJc0mbKxgzQMg0P0bnOpLbVt6ut4ntUCVC3YQqHFuRBD0WvCm8Fcr65Cz8O0cCP/66bCZ9AzpkuOc4qHFe5knsQ6lsdPwqLdEkobBHsINYS0syxiAezkN6HgDWpvEbYy2pn3TVYHcUvREiyTluo9Qy4u2pMQB8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MC8img3f; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MC8img3f" 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> Precedence: bulk X-Mailing-List: linux-alpha@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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