mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 11:51:27 +00:00
415e12b237
Move the evaluation of acpi_pci_osc_control_set() (to request control of PCI Express native features) into acpi_pci_root_add() to avoid calling it many times for the same root complex with the same arguments. Additionally, check if all of the requisite _OSC support bits are set before calling acpi_pci_osc_control_set() for a given root complex. References: https://bugzilla.kernel.org/show_bug.cgi?id=20232 Reported-by: Ozan Caglayan <ozan@pardus.org.tr> Tested-by: Ozan Caglayan <ozan@pardus.org.tr> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*
|
|
* 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 entires 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;
|
|
extern int pcie_port_device_register(struct pci_dev *dev);
|
|
#ifdef CONFIG_PM
|
|
extern int pcie_port_device_suspend(struct device *dev);
|
|
extern int pcie_port_device_resume(struct device *dev);
|
|
#endif
|
|
extern void pcie_port_device_remove(struct pci_dev *dev);
|
|
extern int __must_check pcie_port_bus_register(void);
|
|
extern void pcie_port_bus_unregister(void);
|
|
|
|
struct pci_dev;
|
|
|
|
extern void pcie_clear_root_pme_status(struct pci_dev *dev);
|
|
|
|
#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;
|
|
}
|
|
|
|
extern 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
|
|
extern 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_ */
|