summaryrefslogtreecommitdiff
path: root/drivers/pci/pcie
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r--drivers/pci/pcie/portdrv_core.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index d0245c83b621..a9c222d79ebc 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -259,20 +259,43 @@ static int get_port_device_capability(struct pci_dev *dev)
/* Hot-Plug Capable */
if ((cap_mask & PCIE_PORT_SERVICE_HP) && (reg16 & PCI_EXP_FLAGS_SLOT)) {
pci_read_config_dword(dev, pos + PCI_EXP_SLTCAP, &reg32);
- if (reg32 & PCI_EXP_SLTCAP_HPC)
+ if (reg32 & PCI_EXP_SLTCAP_HPC) {
services |= PCIE_PORT_SERVICE_HP;
+ /*
+ * Disable hot-plug interrupts in case they have been
+ * enabled by the BIOS and the hot-plug service driver
+ * is not loaded.
+ */
+ pos += PCI_EXP_SLTCTL;
+ pci_read_config_word(dev, pos, &reg16);
+ reg16 &= ~(PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE);
+ pci_write_config_word(dev, pos, reg16);
+ }
}
/* AER capable */
if ((cap_mask & PCIE_PORT_SERVICE_AER)
- && pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
+ && pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR)) {
services |= PCIE_PORT_SERVICE_AER;
+ /*
+ * Disable AER on this port in case it's been enabled by the
+ * BIOS (the AER service driver will enable it when necessary).
+ */
+ pci_disable_pcie_error_reporting(dev);
+ }
/* VC support */
if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
services |= PCIE_PORT_SERVICE_VC;
/* Root ports are capable of generating PME too */
if ((cap_mask & PCIE_PORT_SERVICE_PME)
- && dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
+ && dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) {
services |= PCIE_PORT_SERVICE_PME;
+ /*
+ * Disable PME interrupt on this port in case it's been enabled
+ * by the BIOS (the PME service driver will enable it when
+ * necessary).
+ */
+ pcie_pme_interrupt_enable(dev, false);
+ }
return services;
}