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

   1/*
   2 * Intel SOC Telemetry Driver Header File
   3 * Copyright (C) 2015, Intel Corporation.
   4 * All Rights Reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 */
  16#ifndef INTEL_TELEMETRY_H
  17#define INTEL_TELEMETRY_H
  18
  19#define TELEM_MAX_EVENTS_SRAM           28
  20#define TELEM_MAX_OS_ALLOCATED_EVENTS   20
  21
  22enum telemetry_unit {
  23        TELEM_PSS = 0,
  24        TELEM_IOSS,
  25        TELEM_UNIT_NONE
  26};
  27
  28struct telemetry_evtlog {
  29        u32 telem_evtid;
  30        u64 telem_evtlog;
  31};
  32
  33struct telemetry_evtconfig {
  34        /* Array of Event-IDs to Enable */
  35        u32 *evtmap;
  36
  37        /* Number of Events (<29) in evtmap */
  38        u8 num_evts;
  39
  40        /* Sampling period */
  41        u8 period;
  42};
  43
  44struct telemetry_evtmap {
  45        const char *name;
  46        u32 evt_id;
  47};
  48
  49struct telemetry_unit_config {
  50        struct telemetry_evtmap *telem_evts;
  51        void __iomem *regmap;
  52        u32 ssram_base_addr;
  53        u8 ssram_evts_used;
  54        u8 curr_period;
  55        u8 max_period;
  56        u8 min_period;
  57        u32 ssram_size;
  58
  59};
  60
  61struct telemetry_plt_config {
  62        struct telemetry_unit_config pss_config;
  63        struct telemetry_unit_config ioss_config;
  64        struct mutex telem_trace_lock;
  65        struct mutex telem_lock;
  66        bool telem_in_use;
  67};
  68
  69struct telemetry_core_ops {
  70        int (*get_sampling_period)(u8 *pss_min_period, u8 *pss_max_period,
  71                                   u8 *ioss_min_period, u8 *ioss_max_period);
  72
  73        int (*get_eventconfig)(struct telemetry_evtconfig *pss_evtconfig,
  74                               struct telemetry_evtconfig *ioss_evtconfig,
  75                               int pss_len, int ioss_len);
  76
  77        int (*update_events)(struct telemetry_evtconfig pss_evtconfig,
  78                             struct telemetry_evtconfig ioss_evtconfig);
  79
  80        int (*set_sampling_period)(u8 pss_period, u8 ioss_period);
  81
  82        int (*get_trace_verbosity)(enum telemetry_unit telem_unit,
  83                                   u32 *verbosity);
  84
  85        int (*set_trace_verbosity)(enum telemetry_unit telem_unit,
  86                                   u32 verbosity);
  87
  88        int (*raw_read_eventlog)(enum telemetry_unit telem_unit,
  89                                 struct telemetry_evtlog *evtlog,
  90                                 int len, int log_all_evts);
  91
  92        int (*read_eventlog)(enum telemetry_unit telem_unit,
  93                             struct telemetry_evtlog *evtlog,
  94                             int len, int log_all_evts);
  95
  96        int (*add_events)(u8 num_pss_evts, u8 num_ioss_evts,
  97                          u32 *pss_evtmap, u32 *ioss_evtmap);
  98
  99        int (*reset_events)(void);
 100};
 101
 102int telemetry_set_pltdata(const struct telemetry_core_ops *ops,
 103                          struct telemetry_plt_config *pltconfig);
 104
 105int telemetry_clear_pltdata(void);
 106
 107int telemetry_pltconfig_valid(void);
 108
 109int telemetry_get_evtname(enum telemetry_unit telem_unit,
 110                          const char **name, int len);
 111
 112int telemetry_update_events(struct telemetry_evtconfig pss_evtconfig,
 113                            struct telemetry_evtconfig ioss_evtconfig);
 114
 115int telemetry_add_events(u8 num_pss_evts, u8 num_ioss_evts,
 116                         u32 *pss_evtmap, u32 *ioss_evtmap);
 117
 118int telemetry_reset_events(void);
 119
 120int telemetry_get_eventconfig(struct telemetry_evtconfig *pss_config,
 121                              struct telemetry_evtconfig *ioss_config,
 122                              int pss_len, int ioss_len);
 123
 124int telemetry_read_events(enum telemetry_unit telem_unit,
 125                          struct telemetry_evtlog *evtlog, int len);
 126
 127int telemetry_raw_read_events(enum telemetry_unit telem_unit,
 128                              struct telemetry_evtlog *evtlog, int len);
 129
 130int telemetry_read_eventlog(enum telemetry_unit telem_unit,
 131                            struct telemetry_evtlog *evtlog, int len);
 132
 133int telemetry_raw_read_eventlog(enum telemetry_unit telem_unit,
 134                                struct telemetry_evtlog *evtlog, int len);
 135
 136int telemetry_get_sampling_period(u8 *pss_min_period, u8 *pss_max_period,
 137                                  u8 *ioss_min_period, u8 *ioss_max_period);
 138
 139int telemetry_set_sampling_period(u8 pss_period, u8 ioss_period);
 140
 141int telemetry_set_trace_verbosity(enum telemetry_unit telem_unit,
 142                                  u32 verbosity);
 143
 144int telemetry_get_trace_verbosity(enum telemetry_unit telem_unit,
 145                                  u32 *verbosity);
 146
 147#endif /* INTEL_TELEMETRY_H */
 148