1f7c164b6f
Since the only existing caller of acpiphp_check_host_bridge(), which is acpi_pci_root_scan_dependent(), already has a struct acpi_device pointer needed to obtain the ACPIPHP context, it doesn't make sense to execute acpi_bus_get_device() on its handle in acpiphp_handle_to_bridge() just in order to get that pointer back. For this reason, modify acpiphp_check_host_bridge() to take a struct acpi_device pointer as its argument and rearrange the code accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
|
|
* File pci-acpi.h
|
|
*
|
|
* Copyright (C) 2004 Intel
|
|
* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
|
|
*/
|
|
|
|
#ifndef _PCI_ACPI_H_
|
|
#define _PCI_ACPI_H_
|
|
|
|
#include <linux/acpi.h>
|
|
|
|
#ifdef CONFIG_ACPI
|
|
extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
|
|
struct pci_bus *pci_bus);
|
|
extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev);
|
|
extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
|
|
struct pci_dev *pci_dev);
|
|
extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev);
|
|
extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
|
|
|
|
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
|
|
{
|
|
struct pci_bus *pbus = pdev->bus;
|
|
|
|
/* Find a PCI root bus */
|
|
while (!pci_is_root_bus(pbus))
|
|
pbus = pbus->parent;
|
|
|
|
return ACPI_HANDLE(pbus->bridge);
|
|
}
|
|
|
|
static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
|
|
{
|
|
struct device *dev;
|
|
|
|
if (pci_is_root_bus(pbus))
|
|
dev = pbus->bridge;
|
|
else
|
|
dev = &pbus->self->dev;
|
|
|
|
return ACPI_HANDLE(dev);
|
|
}
|
|
|
|
void acpi_pci_add_bus(struct pci_bus *bus);
|
|
void acpi_pci_remove_bus(struct pci_bus *bus);
|
|
|
|
#ifdef CONFIG_ACPI_PCI_SLOT
|
|
void acpi_pci_slot_init(void);
|
|
void acpi_pci_slot_enumerate(struct pci_bus *bus);
|
|
void acpi_pci_slot_remove(struct pci_bus *bus);
|
|
#else
|
|
static inline void acpi_pci_slot_init(void) { }
|
|
static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
|
|
static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
|
|
#endif
|
|
|
|
#ifdef CONFIG_HOTPLUG_PCI_ACPI
|
|
void acpiphp_init(void);
|
|
void acpiphp_enumerate_slots(struct pci_bus *bus);
|
|
void acpiphp_remove_slots(struct pci_bus *bus);
|
|
void acpiphp_check_host_bridge(struct acpi_device *adev);
|
|
#else
|
|
static inline void acpiphp_init(void) { }
|
|
static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
|
|
static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
|
|
static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
|
|
#endif
|
|
|
|
#else /* CONFIG_ACPI */
|
|
static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
|
|
static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
|
|
#endif /* CONFIG_ACPI */
|
|
|
|
#ifdef CONFIG_ACPI_APEI
|
|
extern bool aer_acpi_firmware_first(void);
|
|
#else
|
|
static inline bool aer_acpi_firmware_first(void) { return false; }
|
|
#endif
|
|
|
|
#endif /* _PCI_ACPI_H_ */
|