--- zzzz-none-000/linux-4.9.279/include/linux/pci.h	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/include/linux/pci.h	2023-02-08 11:43:43.000000000 +0000
@@ -372,6 +372,9 @@
 	unsigned int	irq_managed:1;
 	unsigned int	has_secondary_link:1;
 	unsigned int	non_compliant_bars:1;	/* broken BARs; ignore them */
+#ifdef	CONFIG_INTEL_PCI_MULTI_MSI
+	unsigned int	mmsi_support:1;	/* support multiple MSI */
+#endif
 	pci_dev_flags_t dev_flags;
 	atomic_t	enable_cnt;	/* pci_enable_device has been called */
 
@@ -1301,6 +1304,11 @@
 void pci_disable_msix(struct pci_dev *dev);
 void pci_restore_msi_state(struct pci_dev *dev);
 int pci_msi_enabled(void);
+#ifdef CONFIG_INTEL_PCI_MULTI_MSI
+void pci_enable_multi_msi_support(struct pci_dev *dev);
+void pci_disable_multi_msi_support(struct pci_dev *dev);
+int pci_multi_msi_support_enabled(struct pci_dev *dev);
+#endif
 int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec);
 static inline int pci_enable_msi_exact(struct pci_dev *dev, int nvec)
 {