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//lib/modules/2.6.32-754.el6.x86_64/source/include/linux/pci-aspm.h
/* * 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 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(void); 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 pci_disable_link_state(struct pci_dev *pdev, int state) { } static inline void pcie_clear_aspm(void) { } 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 */