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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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5090d4a6a1
Prepare two stub functions to handle ACPI PCI slots and ACPI PCI hotplug slots, which will be invoked by the PCI core when creating/destroying PCI buses. It will be used to get rid of ACPI PCI subdrivers for pci_slot and acpiphp, and eventually remove the ACPI PCI subdriver mechanism. And it will also be used to handle ACPI PCI (hotplug) slots in a unified way, both at boot time and for PCI hotplug operations. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Yinghai Lu <yinghai@kernel.org> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Toshi Kani <toshi.kani@hp.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Myron Stowe <myron.stowe@redhat.com>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* File pci-acpi.h
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*
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* Copyright (C) 2004 Intel
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* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
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*/
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#ifndef _PCI_ACPI_H_
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#define _PCI_ACPI_H_
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#include <linux/acpi.h>
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#ifdef CONFIG_ACPI
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extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
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struct pci_bus *pci_bus);
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extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev);
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extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
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struct pci_dev *pci_dev);
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extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev);
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extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
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static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
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{
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struct pci_bus *pbus = pdev->bus;
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/* Find a PCI root bus */
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while (!pci_is_root_bus(pbus))
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pbus = pbus->parent;
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return DEVICE_ACPI_HANDLE(pbus->bridge);
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}
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static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
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{
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struct device *dev;
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if (pci_is_root_bus(pbus))
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dev = pbus->bridge;
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else
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dev = &pbus->self->dev;
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return DEVICE_ACPI_HANDLE(dev);
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}
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void acpi_pci_add_bus(struct pci_bus *bus);
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void acpi_pci_remove_bus(struct pci_bus *bus);
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#else /* CONFIG_ACPI */
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static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
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static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
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#endif /* CONFIG_ACPI */
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#ifdef CONFIG_ACPI_APEI
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extern bool aer_acpi_firmware_first(void);
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#else
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static inline bool aer_acpi_firmware_first(void) { return false; }
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#endif
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#endif /* _PCI_ACPI_H_ */
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