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gerrit-public.fairphone.software / kernel / msm-4.9 / e8483b578b229774382a95891439b2ebd9c92fc5 / . / include / linux / pci-acpi.h
blob: 7d63a66e8ed43a7b696f0e061a0d9a8d051b98fc [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
Tomasz Nowicki935c7602016-06-10 21:55:13 +0200[diff] [blame]27extern phys_addr_t pci_mcfg_lookup(u16 domain, struct resource *bus_res);
28
Jiri Slaby056c58e2008-08-18 20:22:54 +0200[diff] [blame]29static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
30{
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]31 struct pci_bus *pbus = pdev->bus;
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]32
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]33 /* Find a PCI root bus */
Kenji Kaneshigea222b8f2009-05-26 16:05:33 +0900[diff] [blame]34 while (!pci_is_root_bus(pbus))
Kenji Kaneshiged18690a2009-02-17 14:12:36 +0900[diff] [blame]35 pbus = pbus->parent;
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]36
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +0100[diff] [blame]37 return ACPI_HANDLE(pbus->bridge);
Jiri Slaby056c58e2008-08-18 20:22:54 +0200[diff] [blame]38}
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +0900[diff] [blame]39
40static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
41{
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]42 struct device *dev;
43
44 if (pci_is_root_bus(pbus))
45 dev = pbus->bridge;
Yinghai Lu32f638f2014-10-30 10:17:25 -0600[diff] [blame]46 else {
47 /* If pbus is a virtual bus, there is no bridge to it */
48 if (!pbus->self)
49 return NULL;
50
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]51 dev = &pbus->self->dev;
Yinghai Lu32f638f2014-10-30 10:17:25 -0600[diff] [blame]52 }
Yinghai Lu059e4ba2012-09-24 14:51:23 -0600[diff] [blame]53
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +0100[diff] [blame]54 return ACPI_HANDLE(dev);
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +0900[diff] [blame]55}
Jiang Liu5090d4a2013-04-12 05:44:21 +0000[diff] [blame]56
Jiang Liu2c204382015-10-14 14:29:39 +0800[diff] [blame]57struct acpi_pci_root;
58struct acpi_pci_root_ops;
59
60struct acpi_pci_root_info {
61 struct acpi_pci_root *root;
62 struct acpi_device *bridge;
63 struct acpi_pci_root_ops *ops;
64 struct list_head resources;
65 char name[16];
66};
67
68struct acpi_pci_root_ops {
69 struct pci_ops *pci_ops;
70 int (*init_info)(struct acpi_pci_root_info *info);
71 void (*release_info)(struct acpi_pci_root_info *info);
72 int (*prepare_resources)(struct acpi_pci_root_info *info);
73};
74
75extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
76extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
77 struct acpi_pci_root_ops *ops,
78 struct acpi_pci_root_info *info,
79 void *sd);
80
Jiang Liu5090d4a2013-04-12 05:44:21 +0000[diff] [blame]81void acpi_pci_add_bus(struct pci_bus *bus);
82void acpi_pci_remove_bus(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]83
84#ifdef CONFIG_ACPI_PCI_SLOT
85void acpi_pci_slot_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]86void acpi_pci_slot_enumerate(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]87void acpi_pci_slot_remove(struct pci_bus *bus);
88#else
89static inline void acpi_pci_slot_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]90static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
Jiang Liu5c0b04e2013-04-12 05:44:24 +0000[diff] [blame]91static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
92#endif
93
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]94#ifdef CONFIG_HOTPLUG_PCI_ACPI
95void acpiphp_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]96void acpiphp_enumerate_slots(struct pci_bus *bus);
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]97void acpiphp_remove_slots(struct pci_bus *bus);
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +0100[diff] [blame]98void acpiphp_check_host_bridge(struct acpi_device *adev);
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]99#else
100static inline void acpiphp_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +0200[diff] [blame]101static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]102static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +0100[diff] [blame]103static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +0000[diff] [blame]104#endif
105
Aaron Lu18e94a32015-03-25 14:31:41 +0800[diff] [blame]106extern const u8 pci_acpi_dsm_uuid[];
107#define DEVICE_LABEL_DSM 0x07
Aaron Lue33caa82015-03-25 14:37:06 +0800[diff] [blame]108#define RESET_DELAY_DSM 0x08
109#define FUNCTION_DELAY_DSM 0x09
Aaron Lu18e94a32015-03-25 14:31:41 +0800[diff] [blame]110
Jiang Liu5090d4a2013-04-12 05:44:21 +0000[diff] [blame]111#else /* CONFIG_ACPI */
112static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
113static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
114#endif /* CONFIG_ACPI */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]115
Rafael J. Wysocki415e12b2011-01-07 00:55:09 +0100[diff] [blame]116#ifdef CONFIG_ACPI_APEI
117extern bool aer_acpi_firmware_first(void);
118#else
119static inline bool aer_acpi_firmware_first(void) { return false; }
120#endif
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]122#endif /* _PCI_ACPI_H_ */