diff options
Diffstat (limited to 'kernel/drivers/pci/pcie/portdrv.h')
-rw-r--r-- | kernel/drivers/pci/pcie/portdrv.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/kernel/drivers/pci/pcie/portdrv.h b/kernel/drivers/pci/pcie/portdrv.h new file mode 100644 index 000000000..d52554840 --- /dev/null +++ b/kernel/drivers/pci/pcie/portdrv.h @@ -0,0 +1,83 @@ +/* + * 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 <linux/compiler.h> + +#define PCIE_PORT_DEVICE_MAXSERVICES 4 +/* + * According to the PCI Express Base Specification 2.0, the indices of + * the MSI-X table entries used by port services must not exceed 31 + */ +#define PCIE_PORT_MAX_MSIX_ENTRIES 32 + +#define get_descriptor_id(type, service) (((type - 4) << 4) | 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 +int pcie_port_acpi_setup(struct pci_dev *port, int *mask); + +static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask) +{ + return pcie_port_acpi_setup(port, mask); +} +#else /* !CONFIG_ACPI */ +static inline int pcie_port_platform_notify(struct pci_dev *port, int *mask) +{ + return 0; +} +#endif /* !CONFIG_ACPI */ + +#endif /* _PORTDRV_H_ */ |