| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * 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 |
| void pci_disable_link_state(struct pci_dev *pdev, int state); |
| void pci_disable_link_state_locked(struct pci_dev *pdev, int state); |
| void pcie_no_aspm(void); |
| #else |
| static inline void pci_disable_link_state(struct pci_dev *pdev, int state) { } |
| static inline void pcie_no_aspm(void) { } |
| #endif |
| |
| #endif /* LINUX_ASPM_H */ |
