LTR: Save Max snoop/no-snoop Latency Value in pci_save_pcie_state, and restore them in pci_restore_pcie_state.
Signed-off-by: Xudong Hao <[email protected]> --- drivers/pci/pci.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 111569c..c8573c3 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -875,6 +875,12 @@ static int pci_save_pcie_state(struct pci_dev *dev) pci_read_config_word(dev, pos + PCI_EXP_LNKCTL2, &cap[i++]); if (pcie_cap_has_sltctl2(dev->pcie_type, flags)) pci_read_config_word(dev, pos + PCI_EXP_SLTCTL2, &cap[i++]); + if (pci_ltr_supported(dev)) { + pci_read_config_word(dev, pos + PCI_LTR_MAX_SNOOP_LAT, + &cap[i++]); + pci_read_config_word(dev, pos + PCI_LTR_MAX_NOSNOOP_LAT, + &cap[i++]); + } return 0; } @@ -908,6 +914,12 @@ static void pci_restore_pcie_state(struct pci_dev *dev) pci_write_config_word(dev, pos + PCI_EXP_LNKCTL2, cap[i++]); if (pcie_cap_has_sltctl2(dev->pcie_type, flags)) pci_write_config_word(dev, pos + PCI_EXP_SLTCTL2, cap[i++]); + if (pci_ltr_supported(dev)) { + pci_write_config_word(dev, pos + PCI_LTR_MAX_SNOOP_LAT, + cap[i++]); + pci_write_config_word(dev, pos + PCI_LTR_MAX_NOSNOOP_LAT, + cap[i++]); + } } -- 1.6.0.rc1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
