[mirror_ubuntu-jammy-kernel.git] / include / linux / pci-acpi.h

/*
 * 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);
static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
{
	return acpi_remove_pm_notifier(dev);
}
extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
					     struct pci_dev *pci_dev);
static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
{
	return acpi_remove_pm_notifier(dev);
}
extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);

extern phys_addr_t pci_mcfg_lookup(u16 domain, struct resource *bus_res);

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 {
		/* If pbus is a virtual bus, there is no bridge to it */
		if (!pbus->self)
			return NULL;

		dev = &pbus->self->dev;
	}

	return ACPI_HANDLE(dev);
}

struct acpi_pci_root;
struct acpi_pci_root_ops;

struct acpi_pci_root_info {
	struct acpi_pci_root		*root;
	struct acpi_device		*bridge;
	struct acpi_pci_root_ops	*ops;
	struct list_head		resources;
	char				name[16];
};

struct acpi_pci_root_ops {
	struct pci_ops *pci_ops;
	int (*init_info)(struct acpi_pci_root_info *info);
	void (*release_info)(struct acpi_pci_root_info *info);
	int (*prepare_resources)(struct acpi_pci_root_info *info);
};

extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
					    struct acpi_pci_root_ops *ops,
					    struct acpi_pci_root_info *info,
					    void *sd);

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

extern const u8 pci_acpi_dsm_uuid[];
#define DEVICE_LABEL_DSM	0x07
#define RESET_DELAY_DSM		0x08
#define FUNCTION_DELAY_DSM	0x09

#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_ */
Commit	Line	Data
1da177e4 LT	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
8b62091e AP	11	#include <linux/acpi.h>
8b62091e AP	12
1da177e4	13	#ifdef CONFIG_ACPI
c072530f RW	14	extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
	15	static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
	16	{
	17	return acpi_remove_pm_notifier(dev);
	18	}
b67ea761 RW	19	extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
b67ea761 RW	20	struct pci_dev *pci_dev);
c072530f RW	21	static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
	22	{
	23	return acpi_remove_pm_notifier(dev);
	24	}
f4b57a3b	25	extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
b67ea761	26
935c760e TN	27	extern phys_addr_t pci_mcfg_lookup(u16 domain, struct resource *bus_res);
935c760e TN	28
056c58e8 JS	29	static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
056c58e8 JS	30	{
d18690af	31	struct pci_bus *pbus = pdev->bus;
059e4ba2	32
d18690af	33	/* Find a PCI root bus */
a222b8f8	34	while (!pci_is_root_bus(pbus))
d18690af	35	pbus = pbus->parent;
059e4ba2	36
3a83f992	37	return ACPI_HANDLE(pbus->bridge);
056c58e8	38	}
e8c331e9 KK	39
	40	static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
	41	{
059e4ba2 YL	42	struct device *dev;
	43
	44	if (pci_is_root_bus(pbus))
	45	dev = pbus->bridge;
32f638fc YL	46	else {
	47	/* If pbus is a virtual bus, there is no bridge to it */
	48	if (!pbus->self)
	49	return NULL;
	50
059e4ba2	51	dev = &pbus->self->dev;
32f638fc	52	}
059e4ba2	53
3a83f992	54	return ACPI_HANDLE(dev);
e8c331e9	55	}
5090d4a6	56
2c204383 JL	57	struct acpi_pci_root;
	58	struct acpi_pci_root_ops;
	59
	60	struct 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
	68	struct 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
	75	extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
	76	extern 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
5090d4a6 JL	81	void acpi_pci_add_bus(struct pci_bus *bus);
5090d4a6 JL	82	void acpi_pci_remove_bus(struct pci_bus *bus);
5c0b04e3 JL	83
	84	#ifdef CONFIG_ACPI_PCI_SLOT
	85	void acpi_pci_slot_init(void);
be1c9de9	86	void acpi_pci_slot_enumerate(struct pci_bus *bus);
5c0b04e3 JL	87	void acpi_pci_slot_remove(struct pci_bus *bus);
	88	#else
	89	static inline void acpi_pci_slot_init(void) { }
be1c9de9	90	static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
5c0b04e3 JL	91	static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
	92	#endif
	93
3b63aaa7 JL	94	#ifdef CONFIG_HOTPLUG_PCI_ACPI
3b63aaa7 JL	95	void acpiphp_init(void);
be1c9de9	96	void acpiphp_enumerate_slots(struct pci_bus *bus);
3b63aaa7	97	void acpiphp_remove_slots(struct pci_bus *bus);
1f7c164b	98	void acpiphp_check_host_bridge(struct acpi_device *adev);
3b63aaa7 JL	99	#else
3b63aaa7 JL	100	static inline void acpiphp_init(void) { }
be1c9de9	101	static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
3b63aaa7	102	static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
1f7c164b	103	static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
3b63aaa7 JL	104	#endif
3b63aaa7 JL	105
18e94a33 AL	106	extern const u8 pci_acpi_dsm_uuid[];
18e94a33 AL	107	#define DEVICE_LABEL_DSM 0x07
e33caa82 AL	108	#define RESET_DELAY_DSM 0x08
e33caa82 AL	109	#define FUNCTION_DELAY_DSM 0x09
18e94a33	110
5090d4a6 JL	111	#else /* CONFIG_ACPI */
	112	static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
	113	static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
	114	#endif /* CONFIG_ACPI */
1da177e4	115
415e12b2 RW	116	#ifdef CONFIG_ACPI_APEI
	117	extern bool aer_acpi_firmware_first(void);
	118	#else
	119	static inline bool aer_acpi_firmware_first(void) { return false; }
	120	#endif
	121
1da177e4	122	#endif /* _PCI_ACPI_H_ */