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| author | Bjorn Helgaas <bhelgaas@google.com> | 2023-02-22 22:47:31 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-02-22 22:47:31 +0300 |
| commit | 90fb1a36528b5a52583c49483ca597beeb7f5435 (patch) | |
| tree | a22bf760d5faccedfcc1839f3da66d51e3c2826e /include/linux/pci.h | |
| parent | 69ed52bec39265072a5efe8fb851d3831129bec2 (diff) | |
| parent | f492edb40b54862cbd65e6aa5eb39fa40f9949bf (diff) | |
| download | linux-90fb1a36528b5a52583c49483ca597beeb7f5435.tar.xz | |
Merge branch 'pci/controller/vmd'
- Add pci_enable_link_state() to allow drivers to enable ASPM link state
(Michael Bottini)
- Add quirk to enable all ASPM link states and program LTR for devices
below VMD (David E. Box)
* pci/controller/vmd:
PCI: vmd: Add quirk to configure PCIe ASPM and LTR
PCI: vmd: Create feature grouping for client products
PCI: vmd: Use PCI_VDEVICE in device list
PCI/ASPM: Add pci_enable_link_state()
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 3df2049ec4a8..3c51cac3890b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1686,10 +1686,15 @@ extern bool pcie_ports_native; #define PCIE_LINK_STATE_L1_2 BIT(4) #define PCIE_LINK_STATE_L1_1_PCIPM BIT(5) #define PCIE_LINK_STATE_L1_2_PCIPM BIT(6) +#define PCIE_LINK_STATE_ALL (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |\ + PCIE_LINK_STATE_CLKPM | PCIE_LINK_STATE_L1_1 |\ + PCIE_LINK_STATE_L1_2 | PCIE_LINK_STATE_L1_1_PCIPM |\ + PCIE_LINK_STATE_L1_2_PCIPM) #ifdef CONFIG_PCIEASPM int pci_disable_link_state(struct pci_dev *pdev, int state); int pci_disable_link_state_locked(struct pci_dev *pdev, int state); +int pci_enable_link_state(struct pci_dev *pdev, int state); void pcie_no_aspm(void); bool pcie_aspm_support_enabled(void); bool pcie_aspm_enabled(struct pci_dev *pdev); @@ -1698,6 +1703,8 @@ static inline int pci_disable_link_state(struct pci_dev *pdev, int state) { return 0; } static inline int pci_disable_link_state_locked(struct pci_dev *pdev, int state) { return 0; } +static inline int pci_enable_link_state(struct pci_dev *pdev, int state) +{ return 0; } static inline void pcie_no_aspm(void) { } static inline bool pcie_aspm_support_enabled(void) { return false; } static inline bool pcie_aspm_enabled(struct pci_dev *pdev) { return false; } |