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