cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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intel_telemetry.h (3723B)

      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 */