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 | * List of supported TMPI IDs. |
17 | * Some TMPI IDs are not used by Linux, so the numbers are not consecutive. |
18 | */ |
19 | enum intel_tpmi_id { |
20 | TPMI_ID_RAPL = 0, /* Running Average Power Limit */ |
21 | TPMI_ID_PEM = 1, /* Power and Perf excursion Monitor */ |
22 | TPMI_ID_UNCORE = 2, /* Uncore Frequency Scaling */ |
23 | TPMI_ID_SST = 5, /* Speed Select Technology */ |
24 | TPMI_CONTROL_ID = 0x80, /* Special ID for getting feature status */ |
25 | TPMI_INFO_ID = 0x81, /* Special ID for PCI BDF and Package ID information */ |
26 | }; |
27 | |
28 | /** |
29 | * struct intel_tpmi_plat_info - Platform information for a TPMI device instance |
30 | * @package_id: CPU Package id |
31 | * @bus_number: PCI bus number |
32 | * @device_number: PCI device number |
33 | * @function_number: PCI function number |
34 | * |
35 | * Structure to store platform data for a TPMI device instance. This |
36 | * struct is used to return data via tpmi_get_platform_data(). |
37 | */ |
38 | struct intel_tpmi_plat_info { |
39 | u8 package_id; |
40 | u8 bus_number; |
41 | u8 device_number; |
42 | u8 function_number; |
43 | }; |
44 | |
45 | struct intel_tpmi_plat_info *tpmi_get_platform_data(struct auxiliary_device *auxdev); |
46 | struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int index); |
47 | int tpmi_get_resource_count(struct auxiliary_device *auxdev); |
48 | int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, bool *read_blocked, |
49 | bool *write_blocked); |
50 | #endif |
51 | |