mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
059e4ba292
When we bind a device to an ACPI handle, the handle is stored in dev->archdata.acpi_handle. For such devices, there's no need to search the acpi_pci_roots list with acpi_get_pci_rootbridge_handle(); we can just use DEVICE_ACPI_HANDLE(dev) directly. [bhelgaas: changelog, reorder "if" to avoid negation] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Len Brown <lenb@kernel.org> Cc: linux-acpi@vger.kernel.org
53 lines
1.2 KiB
C
53 lines
1.2 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 DEVICE_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 DEVICE_ACPI_HANDLE(dev);
|
|
}
|
|
#endif
|
|
|
|
#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_ */
|