diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index bdb4ba2d5f95..6722302db194 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -71,6 +71,7 @@ void pci_update_current_state(struct pci_dev *dev, pci_power_t state); void pci_power_up(struct pci_dev *dev); void pci_disable_enabled_device(struct pci_dev *dev); int pci_finish_runtime_suspend(struct pci_dev *dev); +void pcie_clear_root_pme_status(struct pci_dev *dev); int __pci_pme_wakeup(struct pci_dev *dev, void *ign); void pci_pme_restore(struct pci_dev *dev); bool pci_dev_keep_suspended(struct pci_dev *dev); @@ -253,6 +254,27 @@ bool pci_bus_clip_resource(struct pci_dev *dev, int idx); void pci_reassigndev_resource_alignment(struct pci_dev *dev); void pci_disable_bridge_window(struct pci_dev *dev); +/* PCIe link information */ +#define PCIE_SPEED2STR(speed) \ + ((speed) == PCIE_SPEED_16_0GT ? "16 GT/s" : \ + (speed) == PCIE_SPEED_8_0GT ? "8 GT/s" : \ + (speed) == PCIE_SPEED_5_0GT ? "5 GT/s" : \ + (speed) == PCIE_SPEED_2_5GT ? "2.5 GT/s" : \ + "Unknown speed") + +/* PCIe speed to Mb/s reduced by encoding overhead */ +#define PCIE_SPEED2MBS_ENC(speed) \ + ((speed) == PCIE_SPEED_16_0GT ? 16000*128/130 : \ + (speed) == PCIE_SPEED_8_0GT ? 8000*128/130 : \ + (speed) == PCIE_SPEED_5_0GT ? 5000*8/10 : \ + (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \ + 0) + +enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev); +enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev); +u32 pcie_bandwidth_capable(struct pci_dev *dev, enum pci_bus_speed *speed, + enum pcie_link_width *width); + /* Single Root I/O Virtualization */ struct pci_sriov { int pos; /* Capability position */ |