ACPI/PCI: Negotiate _OSC control bits before requesting them
[deliverable/linux.git] / drivers / pci / pcie / portdrv.h
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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
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12#include <linux/compiler.h>
13
f9f45604 14#define PCIE_PORT_DEVICE_MAXSERVICES 4
b43d4513 15/*
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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
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18 */
19#define PCIE_PORT_MAX_MSIX_ENTRIES 32
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20
21#define get_descriptor_id(type, service) (((type - 4) << 4) | service)
22
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23extern bool pcie_ports_disabled;
24
1da177e4 25extern struct bus_type pcie_port_bus_type;
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26extern int pcie_port_device_register(struct pci_dev *dev);
27#ifdef CONFIG_PM
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28extern int pcie_port_device_suspend(struct device *dev);
29extern int pcie_port_device_resume(struct device *dev);
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30#endif
31extern void pcie_port_device_remove(struct pci_dev *dev);
3ec6a8d0 32extern int __must_check pcie_port_bus_register(void);
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33extern void pcie_port_bus_unregister(void);
34
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35#ifdef CONFIG_PCIE_PME
36extern bool pcie_pme_msi_disabled;
37
38static inline void pcie_pme_disable_msi(void)
39{
40 pcie_pme_msi_disabled = true;
41}
42
43static inline bool pcie_pme_no_msi(void)
44{
45 return pcie_pme_msi_disabled;
46}
47#else /* !CONFIG_PCIE_PME */
48static inline void pcie_pme_disable_msi(void) {}
49static inline bool pcie_pme_no_msi(void) { return false; }
50#endif /* !CONFIG_PCIE_PME */
51
1da177e4 52#endif /* _PORTDRV_H_ */
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