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Fri, 19 Jun 2026 08:52:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781859183; bh=9sgcf1DSRPQqZX1hJyBxVhrzLb4eks7N1xlH6ALCiqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gSfPZIj7jLxCLOm6qmN+B3DzLNs1aQeeAUxwAshyVyw4JkscaNuppoIh6fuEs7Vqs twLQ2K0LbwAxWKlJ+/5sdqWG8pwNJoFoaYK1vg380rpGd9brVvxhZUlQenvKltAfGE m/9T9EAklWwXztieI1OACTAQl3b68Ah+Y/m5o2O7bZD72Ygap6yts1R/Ar2qDnA3qO j8KORpRFLa6Y8o9CdzOTbD9cdqClcTo9ICbWjIn9lsIcn9kayEm3NLY2a+9fC8kjhT RPO/eadnwgqPp3L3umeqxQ9+1A0Zb/UzjUefbcAOUG625WQXOJZLcqwuX+4DT44JFz Ew2NsVCJu1I5g== 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 v8 16/25] alpha/PCI: Add static PCI resource attribute macros Date: Fri, 19 Jun 2026 08:51:51 +0000 Message-ID: <20260619085200.3729431-17-kwilczynski@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260619085200.3729431-1-kwilczynski@kernel.org> References: <20260619085200.3729431-1-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 macros for declaring static binary attributes for Alpha's PCI resource files: - pci_dev_resource_attr(), for dense/BWX systems (mmap dense) - pci_dev_resource_sparse_attr(), for sparse systems (mmap sparse) - pci_dev_resource_dense_attr(), for dense companion files (mmap dense) Each macro creates a const bin_attribute with the BAR index stored in the .private property and the appropriate .mmap callback. Tested-by: Magnus Lindholm Tested-by: Shivaprasad G Bhat Acked-by: Magnus Lindholm Signed-off-by: Krzysztof Wilczyński --- arch/alpha/kernel/pci-sysfs.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 6cf688621ea9..650f7795cc40 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -104,6 +104,26 @@ static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj, return pci_mmap_resource(kobj, attr, vma, 0); } +#define __pci_dev_resource_attr(_suffix, _bar, _name, _mmap) \ +static const struct bin_attribute \ +pci_dev_resource##_bar##_suffix##_attr = { \ + .attr = { .name = __stringify(_name), .mode = 0600 }, \ + .private = (void *)(unsigned long)(_bar), \ + .mmap = (_mmap), \ +} + +#define pci_dev_resource_attr(_bar) \ + __pci_dev_resource_attr(, _bar, resource##_bar, \ + pci_mmap_resource_dense) + +#define pci_dev_resource_sparse_attr(_bar) \ + __pci_dev_resource_attr(_sparse, _bar, resource##_bar##_sparse, \ + pci_mmap_resource_sparse) + +#define pci_dev_resource_dense_attr(_bar) \ + __pci_dev_resource_attr(_dense, _bar, resource##_bar##_dense, \ + pci_mmap_resource_dense) + /** * pci_remove_resource_files - cleanup resource files * @pdev: pci_dev to cleanup -- 2.54.0