diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
new file mode 100644
index 0000000..df28af5
--- /dev/null
+++ b/include/linux/pci-aspm.h
@@ -0,0 +1,35 @@
+/* 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 */