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Sat, 11 Apr 2026 08:02:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775894573; bh=gHUlVbf3Y8qWIkgDqNtVdk/vAmWeIzVKbiePuyGcqSw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QVyQr++xAceybT54YwLzjt3I7WW3gS35d2xqtvJrT7muc1/K6O0wDvLvzHhjm9Enl Dag4uTfrTXM9yJw9UbFbwPk+m8DIu9ySYW+Z+bSZqtDsnbmcBJq92D/eK2XqE7eCJI +//7LbmHhSDBXeOhtgpeObDFW0lHzU+i/NbRGODitEhT4g0oFcVsekQzSZ4AfB/vwq 5fxCOQPuLJspBcMqaa9jjwS4YpuA18LIL2ZBjhIyPGLS6xdSYtV5C6rckiy9qE7PbY waplzkujfnS0px2t4cWv86ujiW1Z58sODln/+Zu5Rt6mq1AjOcfhsaggAha5AcM0gb ksW4raK7z6bMg== 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 v4 17/24] alpha/PCI: Add static PCI resource attribute macros Date: Sat, 11 Apr 2026 08:01:41 +0000 Message-ID: <20260411080148.471335-18-kwilczynski@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260411080148.471335-1-kwilczynski@kernel.org> References: <20260411080148.471335-1-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. 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 c136603ddf2c..824e514c4adb 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(_bar, _name, _suffix, _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(_bar, resource##_bar##_sparse, _sparse, \ + pci_mmap_resource_sparse) + +#define pci_dev_resource_dense_attr(_bar) \ + __pci_dev_resource_attr(_bar, resource##_bar##_dense, _dense, \ + pci_mmap_resource_dense) + /** * pci_remove_resource_files - cleanup resource files * @pdev: pci_dev to cleanup -- 2.53.0