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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-08-26 21:40:03 (GMT) |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-08-26 21:40:03 (GMT) |
| commit | 1193725f543c92a77c73769bc2fbe48c53275f53 (patch) | |
| tree | 71ef007260a1584f4f48d7a7118a3157d01eb5f7 /drivers/pci/pci.c | |
| parent | 7d8c4a2c5ae6d76f1142fb052d698b3c40ce518c (diff) | |
| parent | 39772038ea93e85ea4f1307ec9c1f48a063d89a0 (diff) | |
| download | linux-1193725f543c92a77c73769bc2fbe48c53275f53.tar.xz | |
Merge branch 'pci/yinghai-assign-unassigned-v6' into next
* pci/yinghai-assign-unassigned-v6:
PCI: Assign resources for hot-added host bridge more aggressively
PCI: Move resource reallocation code to non-__init
PCI: Delay enabling bridges until they're needed
PCI: Assign resources on a per-bus basis
PCI: Enable unassigned resource reallocation on per-bus basis
PCI: Turn on reallocation for unassigned resources with host bridge offset
PCI: Look for unassigned resources on per-bus basis
PCI: Drop temporary variable in pci_assign_unassigned_resources()
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 10e3c4e..d3fdce8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1146,6 +1146,24 @@ int pci_reenable_device(struct pci_dev *dev) return 0; } +static void pci_enable_bridge(struct pci_dev *dev) +{ + int retval; + + if (!dev) + return; + + pci_enable_bridge(dev->bus->self); + + if (pci_is_enabled(dev)) + return; + retval = pci_enable_device(dev); + if (retval) + dev_err(&dev->dev, "Error enabling bridge (%d), continuing\n", + retval); + pci_set_master(dev); +} + static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags) { int err; @@ -1166,6 +1184,8 @@ static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags) if (atomic_inc_return(&dev->enable_cnt) > 1) return 0; /* already enabled */ + pci_enable_bridge(dev->bus->self); + /* only skip sriov related */ for (i = 0; i <= PCI_ROM_RESOURCE; i++) if (dev->resource[i].flags & flags) |