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 5 15 /* 16 * The PCIe Capability Interrupt Message Number (PCIe r3.1, sec 7.8.2) must 17 * be one of the first 32 MSI-X entries. Per PCI r3.0, sec 6.8.3.1, MSI 18 * supports a maximum of 32 vectors per function. 19 */ 20 #define PCIE_PORT_MAX_MSI_ENTRIES 32 21 22 #define get_descriptor_id(type, service) (((type - 4) << 8) | service) 23 24 extern struct bus_type pcie_port_bus_type; 25 int pcie_port_device_register(struct pci_dev *dev); 26 #ifdef CONFIG_PM 27 int pcie_port_device_suspend(struct device *dev); 28 int pcie_port_device_resume(struct device *dev); 29 #endif 30 void pcie_port_device_remove(struct pci_dev *dev); 31 int __must_check pcie_port_bus_register(void); 32 void pcie_port_bus_unregister(void); 33 34 struct pci_dev; 35 36 void pcie_clear_root_pme_status(struct pci_dev *dev); 37 38 #ifdef CONFIG_HOTPLUG_PCI_PCIE 39 extern bool pciehp_msi_disabled; 40 41 static inline bool pciehp_no_msi(void) 42 { 43 return pciehp_msi_disabled; 44 } 45 46 #else /* !CONFIG_HOTPLUG_PCI_PCIE */ 47 static inline bool pciehp_no_msi(void) { return false; } 48 #endif /* !CONFIG_HOTPLUG_PCI_PCIE */ 49 50 #ifdef CONFIG_PCIE_PME 51 extern bool pcie_pme_msi_disabled; 52 53 static inline void pcie_pme_disable_msi(void) 54 { 55 pcie_pme_msi_disabled = true; 56 } 57 58 static inline bool pcie_pme_no_msi(void) 59 { 60 return pcie_pme_msi_disabled; 61 } 62 63 void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable); 64 #else /* !CONFIG_PCIE_PME */ 65 static inline void pcie_pme_disable_msi(void) {} 66 static inline bool pcie_pme_no_msi(void) { return false; } 67 static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {} 68 #endif /* !CONFIG_PCIE_PME */ 69 70 #ifdef CONFIG_ACPI 71 void pcie_port_acpi_setup(struct pci_dev *port, int *mask); 72 73 static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask) 74 { 75 pcie_port_acpi_setup(port, mask); 76 } 77 #else /* !CONFIG_ACPI */ 78 static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask){} 79 #endif /* !CONFIG_ACPI */ 80 81 #endif /* _PORTDRV_H_ */ 82