4 * PCI Express ASPM defines and function prototypes
6 * Copyright (C) 2007 Intel Corp.
7 * Zhang Yanmin (yanmin.zhang@intel.com)
8 * Shaohua Li (shaohua.li@intel.com)
10 * For more information, please consult the following manuals (look at
11 * http://www.pcisig.com/ for how to get them):
13 * PCI Express Specification
19 #include <linux/pci.h>
21 #define PCIE_LINK_STATE_L0S 1
22 #define PCIE_LINK_STATE_L1 2
23 #define PCIE_LINK_STATE_CLKPM 4
25 #ifdef CONFIG_PCIEASPM
26 extern void pcie_aspm_init_link_state(struct pci_dev
*pdev
);
27 extern void pcie_aspm_exit_link_state(struct pci_dev
*pdev
);
28 extern void pcie_aspm_pm_state_change(struct pci_dev
*pdev
);
29 extern void pcie_aspm_powersave_config_link(struct pci_dev
*pdev
);
30 extern void pci_disable_link_state(struct pci_dev
*pdev
, int state
);
31 extern void pci_disable_link_state_locked(struct pci_dev
*pdev
, int state
);
32 extern void pcie_clear_aspm(void);
33 extern void pcie_no_aspm(void);
35 static inline void pcie_aspm_init_link_state(struct pci_dev
*pdev
)
38 static inline void pcie_aspm_exit_link_state(struct pci_dev
*pdev
)
41 static inline void pcie_aspm_pm_state_change(struct pci_dev
*pdev
)
44 static inline void pcie_aspm_powersave_config_link(struct pci_dev
*pdev
)
47 static inline void pci_disable_link_state(struct pci_dev
*pdev
, int state
)
50 static inline void pcie_clear_aspm(void)
53 static inline void pcie_no_aspm(void)
58 #ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */
59 extern void pcie_aspm_create_sysfs_dev_files(struct pci_dev
*pdev
);
60 extern void pcie_aspm_remove_sysfs_dev_files(struct pci_dev
*pdev
);
62 static inline void pcie_aspm_create_sysfs_dev_files(struct pci_dev
*pdev
)
65 static inline void pcie_aspm_remove_sysfs_dev_files(struct pci_dev
*pdev
)
69 #endif /* LINUX_ASPM_H */
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