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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amd-pstate-trace.h (2343B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * amd-pstate-trace.h - AMD Processor P-state Frequency Driver Tracer
      4 *
      5 * Copyright (C) 2021 Advanced Micro Devices, Inc. All Rights Reserved.
      6 *
      7 * Author: Huang Rui <ray.huang@amd.com>
      8 */
      9
     10#if !defined(_AMD_PSTATE_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
     11#define _AMD_PSTATE_TRACE_H
     12
     13#include <linux/cpufreq.h>
     14#include <linux/tracepoint.h>
     15#include <linux/trace_events.h>
     16
     17#undef TRACE_SYSTEM
     18#define TRACE_SYSTEM amd_cpu
     19
     20#undef TRACE_INCLUDE_FILE
     21#define TRACE_INCLUDE_FILE amd-pstate-trace
     22
     23#define TPS(x)  tracepoint_string(x)
     24
     25TRACE_EVENT(amd_pstate_perf,
     26
     27	TP_PROTO(unsigned long min_perf,
     28		 unsigned long target_perf,
     29		 unsigned long capacity,
     30		 u64 freq,
     31		 u64 mperf,
     32		 u64 aperf,
     33		 u64 tsc,
     34		 unsigned int cpu_id,
     35		 bool changed,
     36		 bool fast_switch
     37		 ),
     38
     39	TP_ARGS(min_perf,
     40		target_perf,
     41		capacity,
     42		freq,
     43		mperf,
     44		aperf,
     45		tsc,
     46		cpu_id,
     47		changed,
     48		fast_switch
     49		),
     50
     51	TP_STRUCT__entry(
     52		__field(unsigned long, min_perf)
     53		__field(unsigned long, target_perf)
     54		__field(unsigned long, capacity)
     55		__field(unsigned long long, freq)
     56		__field(unsigned long long, mperf)
     57		__field(unsigned long long, aperf)
     58		__field(unsigned long long, tsc)
     59		__field(unsigned int, cpu_id)
     60		__field(bool, changed)
     61		__field(bool, fast_switch)
     62		),
     63
     64	TP_fast_assign(
     65		__entry->min_perf = min_perf;
     66		__entry->target_perf = target_perf;
     67		__entry->capacity = capacity;
     68		__entry->freq = freq;
     69		__entry->mperf = mperf;
     70		__entry->aperf = aperf;
     71		__entry->tsc = tsc;
     72		__entry->cpu_id = cpu_id;
     73		__entry->changed = changed;
     74		__entry->fast_switch = fast_switch;
     75		),
     76
     77	TP_printk("amd_min_perf=%lu amd_des_perf=%lu amd_max_perf=%lu freq=%llu mperf=%llu aperf=%llu tsc=%llu cpu_id=%u changed=%s fast_switch=%s",
     78		  (unsigned long)__entry->min_perf,
     79		  (unsigned long)__entry->target_perf,
     80		  (unsigned long)__entry->capacity,
     81		  (unsigned long long)__entry->freq,
     82		  (unsigned long long)__entry->mperf,
     83		  (unsigned long long)__entry->aperf,
     84		  (unsigned long long)__entry->tsc,
     85		  (unsigned int)__entry->cpu_id,
     86		  (__entry->changed) ? "true" : "false",
     87		  (__entry->fast_switch) ? "true" : "false"
     88		 )
     89);
     90
     91#endif /* _AMD_PSTATE_TRACE_H */
     92
     93/* This part must be outside protection */
     94#undef TRACE_INCLUDE_PATH
     95#define TRACE_INCLUDE_PATH .
     96
     97#include <trace/define_trace.h>