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 44