diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index bd46f23e3db1..6d3f75867106 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -292,22 +292,25 @@ void pci_disable_bridge_window(struct pci_dev *dev); struct pci_bus *pci_bus_get(struct pci_bus *bus); void pci_bus_put(struct pci_bus *bus); -/* 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 link information from Link Capabilities 2 */ +#define PCIE_LNKCAP2_SLS2SPEED(lnkcap2) \ + ((lnkcap2) & PCI_EXP_LNKCAP2_SLS_32_0GB ? PCIE_SPEED_32_0GT : \ + (lnkcap2) & PCI_EXP_LNKCAP2_SLS_16_0GB ? PCIE_SPEED_16_0GT : \ + (lnkcap2) & PCI_EXP_LNKCAP2_SLS_8_0GB ? PCIE_SPEED_8_0GT : \ + (lnkcap2) & PCI_EXP_LNKCAP2_SLS_5_0GB ? PCIE_SPEED_5_0GT : \ + (lnkcap2) & PCI_EXP_LNKCAP2_SLS_2_5GB ? PCIE_SPEED_2_5GT : \ + PCI_SPEED_UNKNOWN) /* 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_32_0GT ? 32000*128/130 : \ + (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) +const char *pci_speed_string(enum pci_bus_speed speed); 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, |