Release 4.18 tools/perf/util/cs-etm-decoder/cs-etm-decoder.h

/*
 * SPDX-License-Identifier: GPL-2.0
 *
 * Copyright(C) 2015-2018 Linaro Limited.
 *
 * Author: Tor Jeremiassen <tor@ti.com>
 * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
 */

#ifndef INCLUDE__CS_ETM_DECODER_H__

#define INCLUDE__CS_ETM_DECODER_H__

#include <linux/types.h>
#include <stdio.h>

struct cs_etm_decoder;


struct cs_etm_buffer {
	
const unsigned char *buf;
	
size_t len;
	
u64 offset;
	
u64 ref_timestamp;
};


enum cs_etm_sample_type {
	
CS_ETM_RANGE = 1 << 0,
	
CS_ETM_TRACE_ON = 1 << 1,
};


struct cs_etm_packet {
	
enum cs_etm_sample_type sample_type;
	
u64 start_addr;
	
u64 end_addr;
	
u8 last_instr_taken_branch;
	
u8 exc;
	
u8 exc_ret;
	
int cpu;
};

struct cs_etm_queue;


typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u64,
				  size_t, u8 *);


struct cs_etmv4_trace_params {
	
u32 reg_idr0;
	
u32 reg_idr1;
	
u32 reg_idr2;
	
u32 reg_idr8;
	
u32 reg_configr;
	
u32 reg_traceidr;
};


struct cs_etm_trace_params {
	
int protocol;
	
union {
		
struct cs_etmv4_trace_params etmv4;
	};
};


struct cs_etm_decoder_params {
	
int operation;
	
void (*packet_printer)(const char *msg);
	
cs_etm_mem_cb_type mem_acc_cb;
	
u8 formatted;
	
u8 fsyncs;
	
u8 hsyncs;
	
u8 frame_aligned;
	
void *data;
};

/*
 * The following enums are indexed starting with 1 to align with the
 * open source coresight trace decoder library.
 */

enum {
	
CS_ETM_PROTO_ETMV3 = 1,
	
CS_ETM_PROTO_ETMV4i,
	
CS_ETM_PROTO_ETMV4d,
};


enum {
	
CS_ETM_OPERATION_PRINT = 1,
	
CS_ETM_OPERATION_DECODE,
};

int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder,
				       u64 indx, const u8 *buf,
				       size_t len, size_t *consumed);

struct cs_etm_decoder *
cs_etm_decoder__new(int num_cpu,
		    struct cs_etm_decoder_params *d_params,
		    struct cs_etm_trace_params t_params[]);

void cs_etm_decoder__free(struct cs_etm_decoder *decoder);

int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder,
				      u64 start, u64 end,
				      cs_etm_mem_cb_type cb_func);

int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder,
			       struct cs_etm_packet *packet);

int cs_etm_decoder__reset(struct cs_etm_decoder *decoder);

#endif /* INCLUDE__CS_ETM_DECODER_H__ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Mathieu J. Poirier
287
96.96%
2
50.00%
Robert Walker
9
3.04%
2
50.00%
Total
296
100.00%
4
100.00%
Directory: tools/perf/util/cs-etm-decoder

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