1 /* 2 * File: portdrv.h 3 * Purpose: PCI Express Port Bus Driver's Internal Data Structures 4 * 5 * Copyright (C) 2004 Intel 6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) 7 */ 8 9 #ifndef _PORTDRV_H_ 10 #define _PORTDRV_H_ 11 12 #include <linux/compiler.h> 13 14 #define PCIE_PORT_DEVICE_MAXSERVICES 4 15 /* 16 * According to the PCI Express Base Specification 2.0, the indices of 17 * the MSI-X table entires used by port services must not exceed 31 18 */ 19 #define PCIE_PORT_MAX_MSIX_ENTRIES 32 20 21 #define get_descriptor_id(type, service) (((type - 4) << 4) | service) 22 23 extern bool pcie_ports_disabled; 24 extern bool pcie_ports_auto; 25 26 extern struct bus_type pcie_port_bus_type; 27 extern int pcie_port_device_register(struct pci_dev *dev); 28 #ifdef CONFIG_PM 29 extern int pcie_port_device_suspend(struct device *dev); 30 extern int pcie_port_device_resume(struct device *dev); 31 #endif 32 extern void pcie_port_device_remove(struct pci_dev *dev); 33 extern int __must_check pcie_port_bus_register(void); 34 extern void pcie_port_bus_unregister(void); 35 36 struct pci_dev; 37 38 #ifdef CONFIG_PCIE_PME 39 extern bool pcie_pme_msi_disabled; 40 41 static inline void pcie_pme_disable_msi(void) 42 { 43 pcie_pme_msi_disabled = true; 44 } 45 46 static inline bool pcie_pme_no_msi(void) 47 { 48 return pcie_pme_msi_disabled; 49 } 50 51 extern void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable); 52 #else /* !CONFIG_PCIE_PME */ 53 static inline void pcie_pme_disable_msi(void) {} 54 static inline bool pcie_pme_no_msi(void) { return false; } 55 static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {} 56 #endif /* !CONFIG_PCIE_PME */ 57 58 #ifdef CONFIG_ACPI 59 extern int pcie_port_acpi_setup(struct pci_dev *port, int *mask); 60 61 static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask) 62 { 63 return pcie_port_acpi_setup(port, mask); 64 } 65 #else /* !CONFIG_ACPI */ 66 static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask) 67 { 68 return 0; 69 } 70 #endif /* !CONFIG_ACPI */ 71 72 #endif /* _PORTDRV_H_ */ 73