4 * Copyright (C) 2004 Intel
5 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
11 #include <linux/acpi.h>
13 #define OSC_QUERY_TYPE 0
14 #define OSC_SUPPORT_TYPE 1
15 #define OSC_CONTROL_TYPE 2
16 #define OSC_SUPPORT_MASKS 0x1f
21 #define OSC_QUERY_ENABLE 1
22 #define OSC_REQUEST_ERROR 2
23 #define OSC_INVALID_UUID_ERROR 4
24 #define OSC_INVALID_REVISION_ERROR 8
25 #define OSC_CAPABILITIES_MASK_ERROR 16
28 * _OSC DW1 Definition (OS Support Fields)
30 #define OSC_EXT_PCI_CONFIG_SUPPORT 1
31 #define OSC_ACTIVE_STATE_PWR_SUPPORT 2
32 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT 4
33 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 8
34 #define OSC_MSI_SUPPORT 16
37 * _OSC DW1 Definition (OS Control Fields)
39 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 1
40 #define OSC_SHPC_NATIVE_HP_CONTROL 2
41 #define OSC_PCI_EXPRESS_PME_CONTROL 4
42 #define OSC_PCI_EXPRESS_AER_CONTROL 8
43 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL 16
45 #define OSC_CONTROL_MASKS (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | \
46 OSC_SHPC_NATIVE_HP_CONTROL | \
47 OSC_PCI_EXPRESS_PME_CONTROL | \
48 OSC_PCI_EXPRESS_AER_CONTROL | \
49 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
52 extern acpi_status
pci_osc_control_set(acpi_handle handle
, u32 flags
);
53 int pci_acpi_osc_support(acpi_handle handle
, u32 flags
);
54 static inline acpi_handle
acpi_find_root_bridge_handle(struct pci_dev
*pdev
)
56 /* Find root host bridge */
57 while (pdev
->bus
->self
)
58 pdev
= pdev
->bus
->self
;
60 return acpi_get_pci_rootbridge_handle(pci_domain_nr(pdev
->bus
),
64 static inline acpi_handle
acpi_pci_get_bridge_handle(struct pci_bus
*pbus
)
66 int seg
= pci_domain_nr(pbus
), busnr
= pbus
->number
;
67 struct pci_dev
*bridge
= pbus
->self
;
69 return DEVICE_ACPI_HANDLE(&(bridge
->dev
));
70 return acpi_get_pci_rootbridge_handle(seg
, busnr
);
73 #if !defined(AE_ERROR)
74 typedef u32 acpi_status
;
75 #define AE_ERROR (acpi_status) (0x0001)
77 static inline acpi_status
pci_osc_control_set(acpi_handle handle
, u32 flags
)
79 static inline acpi_handle
acpi_find_root_bridge_handle(struct pci_dev
*pdev
)
83 #endif /* _PCI_ACPI_H_ */
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