/* SPDX-License-Identifier: GPL-2.0 */ /* * File: portdrv.h * Purpose: PCI Express Port Bus Driver's Internal Data Structures * * Copyright (C) 2004 Intel * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) */ #ifndef _PORTDRV_H_ #define _PORTDRV_H_ #include #define PCIE_PORT_DEVICE_MAXSERVICES 5 /* * The PCIe Capability Interrupt Message Number (PCIe r3.1, sec 7.8.2) must * be one of the first 32 MSI-X entries. Per PCI r3.0, sec 6.8.3.1, MSI * supports a maximum of 32 vectors per function. */ #define PCIE_PORT_MAX_MSI_ENTRIES 32 #define get_descriptor_id(type, service) (((type - 4) << 8) | service) extern struct bus_type pcie_port_bus_type; int pcie_port_device_register(struct pci_dev *dev); #ifdef CONFIG_PM int pcie_port_device_suspend(struct device *dev); int pcie_port_device_resume(struct device *dev); #endif void pcie_port_device_remove(struct pci_dev *dev); int __must_check pcie_port_bus_register(void); void pcie_port_bus_unregister(void); struct pci_dev; void pcie_clear_root_pme_status(struct pci_dev *dev); #ifdef CONFIG_HOTPLUG_PCI_PCIE extern bool pciehp_msi_disabled; static inline bool pciehp_no_msi(void) { return pciehp_msi_disabled; } #else /* !CONFIG_HOTPLUG_PCI_PCIE */ static inline bool pciehp_no_msi(void) { return false; } #endif /* !CONFIG_HOTPLUG_PCI_PCIE */ #ifdef CONFIG_PCIE_PME extern bool pcie_pme_msi_disabled; static inline void pcie_pme_disable_msi(void) { pcie_pme_msi_disabled = true; } static inline bool pcie_pme_no_msi(void) { return pcie_pme_msi_disabled; } void pcie_pme_interrupt_enable(struct pci_dev *dev, bool enable); #else /* !CONFIG_PCIE_PME */ static inline void pcie_pme_disable_msi(void) {} static inline bool pcie_pme_no_msi(void) { return false; } static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {} #endif /* !CONFIG_PCIE_PME */ #ifdef CONFIG_ACPI void pcie_port_acpi_setup(struct pci_dev *port, int *mask); static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask) { pcie_port_acpi_setup(port, mask); } #else /* !CONFIG_ACPI */ static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask){} #endif /* !CONFIG_ACPI */ #endif /* _PORTDRV_H_ */