| /* |
| * aspm.h |
| * |
| * PCI Express ASPM defines and function prototypes |
| * |
| * Copyright (C) 2007 Intel Corp. |
| * Zhang Yanmin (yanmin.zhang@intel.com) |
| * Shaohua Li (shaohua.li@intel.com) |
| * |
| * For more information, please consult the following manuals (look at |
| * http://www.pcisig.com/ for how to get them): |
| * |
| * PCI Express Specification |
| */ |
| |
| #ifndef LINUX_ASPM_H |
| #define LINUX_ASPM_H |
| |
| #include <linux/pci.h> |
| |
| #define PCIE_LINK_STATE_L0S 1 |
| #define PCIE_LINK_STATE_L1 2 |
| #define PCIE_LINK_STATE_CLKPM 4 |
| |
| #ifdef CONFIG_PCIEASPM |
| extern void pcie_aspm_init_link_state(struct pci_dev *pdev); |
| extern void pcie_aspm_exit_link_state(struct pci_dev *pdev); |
| extern void pcie_aspm_pm_state_change(struct pci_dev *pdev); |
| extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev); |
| extern void pci_disable_link_state(struct pci_dev *pdev, int state); |
| extern void pci_disable_link_state_locked(struct pci_dev *pdev, int state); |
| extern void pcie_clear_aspm(struct pci_bus *bus); |
| extern void pcie_no_aspm(void); |
| #else |
| static inline void pcie_aspm_init_link_state(struct pci_dev *pdev) |
| { |
| } |
| static inline void pcie_aspm_exit_link_state(struct pci_dev *pdev) |
| { |
| } |
| static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev) |
| { |
| } |
| static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev) |
| { |
| } |
| static inline void pci_disable_link_state(struct pci_dev *pdev, int state) |
| { |
| } |
| static inline void pcie_clear_aspm(struct pci_bus *bus) |
| { |
| } |
| static inline void pcie_no_aspm(void) |
| { |
| } |
| #endif |
| |
| #ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */ |
| extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev); |
| extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev); |
| #else |
| static inline void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev) |
| { |
| } |
| static inline void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev) |
| { |
| } |
| #endif |
| #endif /* LINUX_ASPM_H */ |
