LXR linux/arch/x86/include/asm/intel

   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 <asm/intel_scu_ipc.h>
  14
  15enum telemetry_unit {
  16        TELEM_PSS = 0,
  17        TELEM_IOSS,
  18        TELEM_UNIT_NONE
  19};
  20
  21struct telemetry_evtlog {
  22        u32 telem_evtid;
  23        u64 telem_evtlog;
  24};
  25
  26struct 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
  37struct telemetry_evtmap {
  38        const char *name;
  39        u32 evt_id;
  40};
  41
  42struct 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
  51struct 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
  61struct telemetry_core_ops {
  62        int (*get_sampling_period)(u8 *pss_min_period, u8 *pss_max_period,
  63                                   u8 *ioss_min_period, u8 *ioss_max_period);
  64
  65        int (*get_eventconfig)(struct telemetry_evtconfig *pss_evtconfig,
  66                               struct telemetry_evtconfig *ioss_evtconfig,
  67                               int pss_len, int ioss_len);
  68
  69        int (*update_events)(struct telemetry_evtconfig pss_evtconfig,
  70                             struct telemetry_evtconfig ioss_evtconfig);
  71
  72        int (*set_sampling_period)(u8 pss_period, u8 ioss_period);
  73
  74        int (*get_trace_verbosity)(enum telemetry_unit telem_unit,
  75                                   u32 *verbosity);
  76
  77        int (*set_trace_verbosity)(enum telemetry_unit telem_unit,
  78                                   u32 verbosity);
  79
  80        int (*raw_read_eventlog)(enum telemetry_unit telem_unit,
  81                                 struct telemetry_evtlog *evtlog,
  82                                 int len, int log_all_evts);
  83
  84        int (*read_eventlog)(enum telemetry_unit telem_unit,
  85                             struct telemetry_evtlog *evtlog,
  86                             int len, int log_all_evts);
  87
  88        int (*add_events)(u8 num_pss_evts, u8 num_ioss_evts,
  89                          u32 *pss_evtmap, u32 *ioss_evtmap);
  90
  91        int (*reset_events)(void);
  92};
  93
  94int telemetry_set_pltdata(const struct telemetry_core_ops *ops,
  95                          struct telemetry_plt_config *pltconfig);
  96
  97int telemetry_clear_pltdata(void);
  98
  99struct telemetry_plt_config *telemetry_get_pltdata(void);
 100
 101int telemetry_get_evtname(enum telemetry_unit telem_unit,
 102                          const char **name, int len);
 103
 104int telemetry_update_events(struct telemetry_evtconfig pss_evtconfig,
 105                            struct telemetry_evtconfig ioss_evtconfig);
 106
 107int telemetry_add_events(u8 num_pss_evts, u8 num_ioss_evts,
 108                         u32 *pss_evtmap, u32 *ioss_evtmap);
 109
 110int telemetry_reset_events(void);
 111
 112int telemetry_get_eventconfig(struct telemetry_evtconfig *pss_config,
 113                              struct telemetry_evtconfig *ioss_config,
 114                              int pss_len, int ioss_len);
 115
 116int telemetry_read_events(enum telemetry_unit telem_unit,
 117                          struct telemetry_evtlog *evtlog, int len);
 118
 119int telemetry_raw_read_events(enum telemetry_unit telem_unit,
 120                              struct telemetry_evtlog *evtlog, int len);
 121
 122int telemetry_read_eventlog(enum telemetry_unit telem_unit,
 123                            struct telemetry_evtlog *evtlog, int len);
 124
 125int telemetry_raw_read_eventlog(enum telemetry_unit telem_unit,
 126                                struct telemetry_evtlog *evtlog, int len);
 127
 128int telemetry_get_sampling_period(u8 *pss_min_period, u8 *pss_max_period,
 129                                  u8 *ioss_min_period, u8 *ioss_max_period);
 130
 131int telemetry_set_sampling_period(u8 pss_period, u8 ioss_period);
 132
 133int telemetry_set_trace_verbosity(enum telemetry_unit telem_unit,
 134                                  u32 verbosity);
 135
 136int telemetry_get_trace_verbosity(enum telemetry_unit telem_unit,
 137                                  u32 *verbosity);
 138
 139#endif /* INTEL_TELEMETRY_H */
 140