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_ID_PLR = 0xc, /* Performance Limit Reasons */ 25 TPMI_CONTROL_ID = 0x80, /* Special ID for getting feature status */ 26 TPMI_INFO_ID = 0x81, /* Special ID for PCI BDF and Package ID information */ 27 }; 28 29 /** 30 * struct intel_tpmi_plat_info - Platform information for a TPMI device instance 31 * @cdie_mask: Mask of all compute dies in the partition 32 * @package_id: CPU Package id 33 * @partition: Package partition id when multiple VSEC PCI devices per package 34 * @segment: PCI segment ID 35 * @bus_number: PCI bus number 36 * @device_number: PCI device number 37 * @function_number: PCI function number 38 * 39 * Structure to store platform data for a TPMI device instance. This 40 * struct is used to return data via tpmi_get_platform_data(). 41 */ 42 struct intel_tpmi_plat_info { 43 u16 cdie_mask; 44 u8 package_id; 45 u8 partition; 46 u8 segment; 47 u8 bus_number; 48 u8 device_number; 49 u8 function_number; 50 }; 51 52 struct intel_tpmi_plat_info *tpmi_get_platform_data(struct auxiliary_device *auxdev); 53 struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int index); 54 int tpmi_get_resource_count(struct auxiliary_device *auxdev); 55 int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, bool *read_blocked, 56 bool *write_blocked); 57 struct dentry *tpmi_get_debugfs_dir(struct auxiliary_device *auxdev); 58 #endif 59