xref: /openbmc/linux/include/linux/intel_tpmi.h (revision f0a6c431)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * intel_tpmi.h: Intel TPMI core external interface
4  */
5 
6 #ifndef _INTEL_TPMI_H_
7 #define _INTEL_TPMI_H_
8 
9 #include <linux/bitfield.h>
10 
11 #define TPMI_VERSION_INVALID	0xff
12 #define TPMI_MINOR_VERSION(val)	FIELD_GET(GENMASK(4, 0), val)
13 #define TPMI_MAJOR_VERSION(val)	FIELD_GET(GENMASK(7, 5), val)
14 
15 /**
16  * struct intel_tpmi_plat_info - Platform information for a TPMI device instance
17  * @package_id:	CPU Package id
18  * @bus_number:	PCI bus number
19  * @device_number: PCI device number
20  * @function_number: PCI function number
21  *
22  * Structure to store platform data for a TPMI device instance. This
23  * struct is used to return data via tpmi_get_platform_data().
24  */
25 struct intel_tpmi_plat_info {
26 	u8 package_id;
27 	u8 bus_number;
28 	u8 device_number;
29 	u8 function_number;
30 };
31 
32 struct intel_tpmi_plat_info *tpmi_get_platform_data(struct auxiliary_device *auxdev);
33 struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int index);
34 int tpmi_get_resource_count(struct auxiliary_device *auxdev);
35 
36 int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, int *locked,
37 			    int *disabled);
38 #endif
39