LXR linux/tools/testing/selftests/powerpc/pmu/ebb/trace.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright 2014, Michael Ellerman, IBM Corp.
   4 */
   5
   6#ifndef _SELFTESTS_POWERPC_PMU_EBB_TRACE_H
   7#define _SELFTESTS_POWERPC_PMU_EBB_TRACE_H
   8
   9#include "utils.h"
  10
  11#define TRACE_TYPE_REG          1
  12#define TRACE_TYPE_COUNTER      2
  13#define TRACE_TYPE_STRING       3
  14#define TRACE_TYPE_INDENT       4
  15#define TRACE_TYPE_OUTDENT      5
  16
  17struct trace_entry
  18{
  19        u8 type;
  20        u8 length;
  21        u8 data[];
  22};
  23
  24struct trace_buffer
  25{
  26        u64  size;
  27        bool overflow;
  28        void *tail;
  29        u8   data[];
  30};
  31
  32struct trace_buffer *trace_buffer_allocate(u64 size);
  33int trace_log_reg(struct trace_buffer *tb, u64 reg, u64 value);
  34int trace_log_counter(struct trace_buffer *tb, u64 value);
  35int trace_log_string(struct trace_buffer *tb, char *str);
  36int trace_log_indent(struct trace_buffer *tb);
  37int trace_log_outdent(struct trace_buffer *tb);
  38void trace_buffer_print(struct trace_buffer *tb);
  39void trace_print_location(struct trace_buffer *tb);
  40
  41#endif /* _SELFTESTS_POWERPC_PMU_EBB_TRACE_H */
  42