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gerrit-public.fairphone.software / kernel / msm-4.19 / d64b1592535e390cdc0605a5b8d4b6665be47003 / . / include / linux / pci-acpi.h
blob: a965efa52152ee27b38a7827588610802e4f6079 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * File pci-acpi.h
3 *
4 * Copyright (C) 2004 Intel
5 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
6 */
7
8#ifndef _PCI_ACPI_H_
9#define _PCI_ACPI_H_
10
Andrew Patterson8b620912008-11-10 15:30:40 -0700[diff] [blame]11#include <linux/acpi.h>
12
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]13#ifdef CONFIG_ACPI
Rafael J. Wysockic0725302014-07-23 01:00:45 +0200[diff] [blame]14extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
15static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
16{
17 return acpi_remove_pm_notifier(dev);
18}
Rafael J. Wysockib67ea762010-02-17 23:44:09 +0100[diff] [blame]19extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
20 struct pci_dev *pci_dev);
Rafael J. Wysockic0725302014-07-23 01:00:45 +0200[diff] [blame]21static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
22{
23 return acpi_remove_pm_notifier(dev);
24}
Jiang Liuf4b57a32012-06-22 14:55:16 +0800[diff] [blame]25extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
Rafael J. Wysockib67ea762010-02-17 23:44:09 +0100[diff] [blame]26
Jiri Slaby056c58e2008-08-18 20:22:54 +0200[diff] [blame]27static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
28{
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]29 struct pci_bus *pbus = pdev->bus;
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]30
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]31 /* Find a PCI root bus */
Kenji Kaneshigea222b8f2009-05-26 16:05:33 +0900[diff] [blame]32 while (!pci_is_root_bus(pbus))
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]33 pbus = pbus->parent;
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]34
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +0100[diff] [blame]35 return ACPI_HANDLE(pbus->bridge);
Jiri Slaby056c58e2008-08-18 20:22:54 +0200[diff] [blame]36}
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +0900[diff] [blame]37
38static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
39{
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]40 struct device *dev;
41
42 if (pci_is_root_bus(pbus))
43 dev = pbus->bridge;
Yinghai Lu32f638f2014-10-30 10:17:25 -0600[diff] [blame]44 else {
45 /* If pbus is a virtual bus, there is no bridge to it */
46 if (!pbus->self)
47 return NULL;
48
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]49 dev = &pbus->self->dev;
Yinghai Lu32f638f2014-10-30 10:17:25 -0600[diff] [blame]50 }
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]51
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +0100[diff] [blame]52 return ACPI_HANDLE(dev);
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +0900[diff] [blame]53}
Jiang Liu5090d4a2013-04-12 05:44:21 +0000[diff] [blame]54
55void acpi_pci_add_bus(struct pci_bus *bus);
56void acpi_pci_remove_bus(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]57
58#ifdef CONFIG_ACPI_PCI_SLOT
59void acpi_pci_slot_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]60void acpi_pci_slot_enumerate(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]61void acpi_pci_slot_remove(struct pci_bus *bus);
62#else
63static inline void acpi_pci_slot_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]64static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]65static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
66#endif
67
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]68#ifdef CONFIG_HOTPLUG_PCI_ACPI
69void acpiphp_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]70void acpiphp_enumerate_slots(struct pci_bus *bus);
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]71void acpiphp_remove_slots(struct pci_bus *bus);
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +0100[diff] [blame]72void acpiphp_check_host_bridge(struct acpi_device *adev);
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]73#else
74static inline void acpiphp_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]75static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]76static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +0100[diff] [blame]77static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]78#endif
79
Aaron Lu18e94a32015-03-25 14:31:41 +0800[diff] [blame]80extern const u8 pci_acpi_dsm_uuid[];
81#define DEVICE_LABEL_DSM 0x07
Aaron Lue33caa82015-03-25 14:37:06 +0800[diff] [blame]82#define RESET_DELAY_DSM 0x08
83#define FUNCTION_DELAY_DSM 0x09
Aaron Lu18e94a32015-03-25 14:31:41 +0800[diff] [blame]84
Jiang Liu5090d4a2013-04-12 05:44:21 +0000[diff] [blame]85#else /* CONFIG_ACPI */
86static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
87static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
88#endif /* CONFIG_ACPI */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]89
Rafael J. Wysocki415e12b2011-01-07 00:55:09 +0100[diff] [blame]90#ifdef CONFIG_ACPI_APEI
91extern bool aer_acpi_firmware_first(void);
92#else
93static inline bool aer_acpi_firmware_first(void) { return false; }
94#endif
95
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]96#endif /* _PCI_ACPI_H_ */