1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Intel SOC Telemetry Driver Header File 4 * Copyright (C) 2015, Intel Corporation. 5 * All Rights Reserved. 6 */ 7 #ifndef INTEL_TELEMETRY_H 8 #define INTEL_TELEMETRY_H 9 10 #define TELEM_MAX_EVENTS_SRAM 28 11 #define TELEM_MAX_OS_ALLOCATED_EVENTS 20 12 13 #include <linux/platform_data/x86/intel_scu_ipc.h> 14 15 enum telemetry_unit { 16 TELEM_PSS = 0, 17 TELEM_IOSS, 18 TELEM_UNIT_NONE 19 }; 20 21 struct telemetry_evtlog { 22 u32 telem_evtid; 23 u64 telem_evtlog; 24 }; 25 26 struct telemetry_evtconfig { 27 /* Array of Event-IDs to Enable */ 28 u32 *evtmap; 29 30 /* Number of Events (<29) in evtmap */ 31 u8 num_evts; 32 33 /* Sampling period */ 34 u8 period; 35 }; 36 37 struct telemetry_evtmap { 38 const char *name; 39 u32 evt_id; 40 }; 41 42 struct telemetry_unit_config { 43 struct telemetry_evtmap *telem_evts; 44 void __iomem *regmap; 45 u8 ssram_evts_used; 46 u8 curr_period; 47 u8 max_period; 48 u8 min_period; 49 }; 50 51 struct telemetry_plt_config { 52 struct telemetry_unit_config pss_config; 53 struct telemetry_unit_config ioss_config; 54 struct mutex telem_trace_lock; 55 struct mutex telem_lock; 56 struct intel_pmc_dev *pmc; 57 struct intel_scu_ipc_dev *scu; 58 bool telem_in_use; 59 }; 60 61 struct telemetry_core_ops { 62 int (*get_trace_verbosity)(enum telemetry_unit telem_unit, 63 u32 *verbosity); 64 65 int (*set_trace_verbosity)(enum telemetry_unit telem_unit, 66 u32 verbosity); 67 68 int (*raw_read_eventlog)(enum telemetry_unit telem_unit, 69 struct telemetry_evtlog *evtlog, 70 int len, int log_all_evts); 71 72 int (*read_eventlog)(enum telemetry_unit telem_unit, 73 struct telemetry_evtlog *evtlog, 74 int len, int log_all_evts); 75 }; 76 77 int telemetry_set_pltdata(const struct telemetry_core_ops *ops, 78 struct telemetry_plt_config *pltconfig); 79 80 int telemetry_clear_pltdata(void); 81 82 struct telemetry_plt_config *telemetry_get_pltdata(void); 83 84 int telemetry_get_evtname(enum telemetry_unit telem_unit, 85 const char **name, int len); 86 87 int telemetry_read_events(enum telemetry_unit telem_unit, 88 struct telemetry_evtlog *evtlog, int len); 89 90 int telemetry_read_eventlog(enum telemetry_unit telem_unit, 91 struct telemetry_evtlog *evtlog, int len); 92 93 int telemetry_raw_read_eventlog(enum telemetry_unit telem_unit, 94 struct telemetry_evtlog *evtlog, int len); 95 96 int telemetry_set_trace_verbosity(enum telemetry_unit telem_unit, 97 u32 verbosity); 98 99 int telemetry_get_trace_verbosity(enum telemetry_unit telem_unit, 100 u32 *verbosity); 101 102 #endif /* INTEL_TELEMETRY_H */ 103