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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Arm Statistical Profiling Extensions (SPE) support
4 * Copyright (c) 2017-2018, Arm Ltd.
5 */
6
7#ifndef INCLUDE__ARM_SPE_PKT_DECODER_H__
8#define INCLUDE__ARM_SPE_PKT_DECODER_H__
9
10#include <stddef.h>
11#include <stdint.h>
12
13#define ARM_SPE_PKT_DESC_MAX 256
14
15#define ARM_SPE_NEED_MORE_BYTES -1
16#define ARM_SPE_BAD_PACKET -2
17
18enum arm_spe_pkt_type {
19 ARM_SPE_BAD,
20 ARM_SPE_PAD,
21 ARM_SPE_END,
22 ARM_SPE_TIMESTAMP,
23 ARM_SPE_ADDRESS,
24 ARM_SPE_COUNTER,
25 ARM_SPE_CONTEXT,
26 ARM_SPE_OP_TYPE,
27 ARM_SPE_EVENTS,
28 ARM_SPE_DATA_SOURCE,
29};
30
31struct arm_spe_pkt {
32 enum arm_spe_pkt_type type;
33 unsigned char index;
34 uint64_t payload;
35};
36
37const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
38
39int arm_spe_get_packet(const unsigned char *buf, size_t len,
40 struct arm_spe_pkt *packet);
41
42int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len);
43#endif