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 struct bus_type pcie_port_bus_type;
24 extern int pcie_port_device_register(struct pci_dev *dev);
25 #ifdef CONFIG_PM
26 extern int pcie_port_device_suspend(struct device *dev);
27 extern int pcie_port_device_resume(struct device *dev);
28 #endif
29 extern void pcie_port_device_remove(struct pci_dev *dev);
30 extern int __must_check pcie_port_bus_register(void);
31 extern void pcie_port_bus_unregister(void);
32
33 struct pci_dev;
34
35 extern void pcie_clear_root_pme_status(struct pci_dev *dev);
36
37 #ifdef CONFIG_PCIE_PME
38 extern bool pcie_pme_msi_disabled;
39
pcie_pme_disable_msi(void)40 static inline void pcie_pme_disable_msi(void)
41 {
42 pcie_pme_msi_disabled = true;
43 }
44
pcie_pme_no_msi(void)45 static inline bool pcie_pme_no_msi(void)
46 {
47 return pcie_pme_msi_disabled;
48 }
49
50 extern void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable);
51 #else /* !CONFIG_PCIE_PME */
pcie_pme_disable_msi(void)52 static inline void pcie_pme_disable_msi(void) {}
pcie_pme_no_msi(void)53 static inline bool pcie_pme_no_msi(void) { return false; }
pcie_pme_interrupt_enable(struct pci_dev * dev,bool en)54 static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {}
55 #endif /* !CONFIG_PCIE_PME */
56
57 #ifdef CONFIG_ACPI
58 extern int pcie_port_acpi_setup(struct pci_dev *port, int *mask);
59
pcie_port_platform_notify(struct pci_dev * port,int * mask)60 static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
61 {
62 return pcie_port_acpi_setup(port, mask);
63 }
64 #else /* !CONFIG_ACPI */
pcie_port_platform_notify(struct pci_dev * port,int * mask)65 static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask)
66 {
67 return 0;
68 }
69 #endif /* !CONFIG_ACPI */
70
71 #endif /* _PORTDRV_H_ */
72