diff options
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 204960e70333..dfc9a2794141 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1556,8 +1556,16 @@ static void program_hpp_type0(struct pci_dev *dev, struct hpp_type0 *hpp) static void program_hpp_type1(struct pci_dev *dev, struct hpp_type1 *hpp) { - if (hpp) - dev_warn(&dev->dev, "PCI-X settings not supported\n"); + int pos; + + if (!hpp) + return; + + pos = pci_find_capability(dev, PCI_CAP_ID_PCIX); + if (!pos) + return; + + dev_warn(&dev->dev, "PCI-X settings not supported\n"); } static bool pcie_root_rcb_set(struct pci_dev *dev) @@ -1583,6 +1591,9 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp) if (!hpp) return; + if (!pci_is_pcie(dev)) + return; + if (hpp->revision > 1) { dev_warn(&dev->dev, "PCIe settings rev %d not supported\n", hpp->revision); @@ -1652,12 +1663,30 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp) */ } +static void pci_configure_extended_tags(struct pci_dev *dev) +{ + u32 dev_cap; + int ret; + + if (!pci_is_pcie(dev)) + return; + + ret = pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &dev_cap); + if (ret) + return; + + if (dev_cap & PCI_EXP_DEVCAP_EXT_TAG) + pcie_capability_set_word(dev, PCI_EXP_DEVCTL, + PCI_EXP_DEVCTL_EXT_TAG); +} + static void pci_configure_device(struct pci_dev *dev) { struct hotplug_params hpp; int ret; pci_configure_mps(dev); + pci_configure_extended_tags(dev); memset(&hpp, 0, sizeof(hpp)); ret = pci_get_hp_params(dev, &hpp); |