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