From patchwork Wed Nov 25 02:21:21 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 62663 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nAP2LFMe014894 for ; Wed, 25 Nov 2009 02:22:13 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758232AbZKYCWG (ORCPT ); Tue, 24 Nov 2009 21:22:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758247AbZKYCWG (ORCPT ); Tue, 24 Nov 2009 21:22:06 -0500 Received: from hera.kernel.org ([140.211.167.34]:32994 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758232AbZKYCWF (ORCPT ); Tue, 24 Nov 2009 21:22:05 -0500 Received: from [10.6.76.26] (sca-ea-fw-1.Sun.COM [192.18.43.225]) (authenticated bits=0) by hera.kernel.org (8.14.3/8.14.3) with ESMTP id nAP2MAjU003152 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 25 Nov 2009 02:22:11 GMT Message-ID: <4B0C94A1.3060400@kernel.org> Date: Tue, 24 Nov 2009 18:21:21 -0800 From: Yinghai Lu User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: Jesse Barnes CC: "linux-pci@vger.kernel.org" Subject: [PATCH] pci: show dma_mask bits in /sys Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Index: linux-2.6/drivers/pci/pci-sysfs.c =================================================================== --- linux-2.6.orig/drivers/pci/pci-sysfs.c +++ linux-2.6/drivers/pci/pci-sysfs.c @@ -184,6 +184,21 @@ numa_node_show(struct device *dev, struc #endif static ssize_t +dma_mask_bits_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + return sprintf (buf, "%d\n", fls64(pdev->dma_mask)); +} + +static ssize_t +consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf (buf, "%d\n", fls64(dev->coherent_dma_mask)); +} + +static ssize_t msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pdev = to_pci_dev(dev); @@ -314,6 +329,8 @@ struct device_attribute pci_dev_attrs[] #ifdef CONFIG_NUMA __ATTR_RO(numa_node), #endif + __ATTR_RO(dma_mask_bits), + __ATTR_RO(consistent_dma_mask_bits), __ATTR(enable, 0600, is_enabled_show, is_enabled_store), __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR), broken_parity_status_show,broken_parity_status_store),