linux - include/linux/intel

43 lines · 1.5 KiB

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	struct oobmsm_plat_info;
12
13	#define TPMI_VERSION_INVALID 0xff
14	#define TPMI_MINOR_VERSION(val) FIELD_GET(GENMASK(4, 0), val)
15	#define TPMI_MAJOR_VERSION(val) FIELD_GET(GENMASK(7, 5), val)
16
17	/*
18	* List of supported TMPI IDs.
19	* Some TMPI IDs are not used by Linux, so the numbers are not consecutive.
20	*/
21	enum intel_tpmi_id {
22	TPMI_ID_RAPL = 0, /* Running Average Power Limit */
23	TPMI_ID_PEM = 1, /* Power and Perf excursion Monitor */
24	TPMI_ID_UNCORE = 2, /* Uncore Frequency Scaling */
25	TPMI_ID_SST = 5, /* Speed Select Technology */
26	TPMI_ID_PLR = 0xc, /* Performance Limit Reasons */
27	TPMI_CONTROL_ID = 0x80, /* Special ID for getting feature status */
28	TPMI_INFO_ID = 0x81, /* Special ID for PCI BDF and Package ID information */
29	};
30
31	#define TPMI_CORE_INIT 0
32	#define TPMI_CORE_EXIT 1
33
34	int tpmi_register_notifier(struct notifier_block *nb);
35	int tpmi_unregister_notifier(struct notifier_block *nb);
36
37	struct oobmsm_plat_info tpmi_get_platform_data(struct auxiliary_device auxdev);
38	struct resource tpmi_get_resource_at_index(struct auxiliary_device auxdev, int index);
39	int tpmi_get_resource_count(struct auxiliary_device *auxdev);
40	int tpmi_get_feature_status(struct auxiliary_device auxdev, int feature_id, bool read_blocked,
41	bool *write_blocked);
42	struct dentry tpmi_get_debugfs_dir(struct auxiliary_device auxdev);
43	#endif