From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com ([192.55.52.93]:6213 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753809AbcBXRHA (ORCPT ); Wed, 24 Feb 2016 12:07:00 -0500 From: Jon Derrick To: helgaas@kernel.org Cc: Jon Derrick , keith.busch@intel.com, linux-pci@vger.kernel.org Subject: [PATCHv2] VMD: Attach vmd resources to parent domain's resource tree Date: Wed, 24 Feb 2016 10:06:37 -0700 Message-Id: <1456333597-10469-1-git-send-email-jonathan.derrick@intel.com> Sender: linux-pci-owner@vger.kernel.org List-ID: This patch attaches the new VMD domain's resources to the VMD device's resources. This allows /proc/iomem to display a more complete picture. Before: c0000000-c1ffffff : 0000:5d:05.5 c2000000-c3ffffff : 0000:5d:05.5 c2010000-c2013fff : nvme c4000000-c40fffff : 0000:5d:05.5 After: c0000000-c1ffffff : 0000:5d:05.5 c2000000-c3ffffff : 0000:5d:05.5 c2000000-c3ffffff : VMD MEMBAR1 c2000000-c22fffff : PCI Bus 10000:01 c2000000-c200ffff : 10000:01:00.0 c2010000-c2013fff : 10000:01:00.0 c2010000-c2013fff : nvme c2300000-c24fffff : PCI Bus 10000:01 c4000000-c40fffff : 0000:5d:05.5 c4002000-c40fffff : VMD MEMBAR2 Signed-off-by: Jon Derrick --- v1->v2: Dropped the CFGBAR resource from the tree arch/x86/pci/vmd.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/x86/pci/vmd.c b/arch/x86/pci/vmd.c index d57e480..d0c4542 100644 --- a/arch/x86/pci/vmd.c +++ b/arch/x86/pci/vmd.c @@ -503,6 +503,18 @@ static struct pci_ops vmd_ops = { .write = vmd_pci_write, }; +static void vmd_attach_resources(struct vmd_dev *vmd) +{ + vmd->dev->resource[VMD_MEMBAR1].child = &vmd->resources[1]; + vmd->dev->resource[VMD_MEMBAR2].child = &vmd->resources[2]; +} + +static void vmd_detach_resources(struct vmd_dev *vmd) +{ + vmd->dev->resource[VMD_MEMBAR1].child = NULL; + vmd->dev->resource[VMD_MEMBAR2].child = NULL; +} + /* * VMD domains start at 0x1000 to not clash with ACPI _SEG domains. */ @@ -542,6 +554,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd) .start = res->start, .end = res->end, .flags = flags, + .parent = res, }; res = &vmd->dev->resource[VMD_MEMBAR2]; @@ -554,6 +567,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd) .start = res->start + 0x2000, .end = res->end, .flags = flags, + .parent = res, }; sd->domain = vmd_find_free_domain(); @@ -578,6 +592,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd) return -ENODEV; } + vmd_attach_resources(vmd); vmd_setup_dma_ops(vmd); dev_set_msi_domain(&vmd->bus->dev, vmd->irq_domain); pci_rescan_bus(vmd->bus); @@ -674,6 +689,7 @@ static void vmd_remove(struct pci_dev *dev) { struct vmd_dev *vmd = pci_get_drvdata(dev); + vmd_detach_resources(vmd); pci_set_drvdata(dev, NULL); sysfs_remove_link(&vmd->dev->dev.kobj, "domain"); pci_stop_root_bus(vmd->bus); -- 1.8.3.1