2 * SPDX-License-Identifier: GPL-2.0
4 * Copyright(C) 2015-2018 Linaro Limited.
6 * Author: Tor Jeremiassen <tor@ti.com>
7 * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
10 #ifndef INCLUDE__CS_ETM_DECODER_H__
11 #define INCLUDE__CS_ETM_DECODER_H__
13 #include <linux/types.h>
16 struct cs_etm_decoder;
18 struct cs_etm_buffer {
19 const unsigned char *buf;
25 enum cs_etm_sample_type {
27 CS_ETM_RANGE = 1 << 0,
28 CS_ETM_TRACE_ON = 1 << 1,
31 struct cs_etm_packet {
32 enum cs_etm_sample_type sample_type;
35 u8 last_instr_taken_branch;
43 typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u64,
46 struct cs_etmv4_trace_params {
55 struct cs_etm_trace_params {
58 struct cs_etmv4_trace_params etmv4;
62 struct cs_etm_decoder_params {
64 void (*packet_printer)(const char *msg);
65 cs_etm_mem_cb_type mem_acc_cb;
74 * The following enums are indexed starting with 1 to align with the
75 * open source coresight trace decoder library.
78 CS_ETM_PROTO_ETMV3 = 1,
84 CS_ETM_OPERATION_PRINT = 1,
85 CS_ETM_OPERATION_DECODE,
88 int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder,
89 u64 indx, const u8 *buf,
90 size_t len, size_t *consumed);
92 struct cs_etm_decoder *
93 cs_etm_decoder__new(int num_cpu,
94 struct cs_etm_decoder_params *d_params,
95 struct cs_etm_trace_params t_params[]);
97 void cs_etm_decoder__free(struct cs_etm_decoder *decoder);
99 int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder,
101 cs_etm_mem_cb_type cb_func);
103 int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder,
104 struct cs_etm_packet *packet);
106 int cs_etm_decoder__reset(struct cs_etm_decoder *decoder);
108 #endif /* INCLUDE__CS_ETM_DECODER_H__ */