/* * intel_pt_decoder.h: Intel Processor Trace support * Copyright (c) 2013-2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for * more details. * */ #ifndef INCLUDE__INTEL_PT_DECODER_H__#define INCLUDE__INTEL_PT_DECODER_H__ #include <stdint.h>#include <stddef.h>#include <stdbool.h> #include "intel-pt-insn-decoder.h" #define INTEL_PT_IN_TX		(1 << 0)#define INTEL_PT_ABORT_TX	(1 << 1)#define INTEL_PT_ASYNC		(1 << 2)#define INTEL_PT_FUP_IP		(1 << 3) enum intel_pt_sample_type {	INTEL_PT_BRANCH		= 1 << 0,	INTEL_PT_INSTRUCTION	= 1 << 1,	INTEL_PT_TRANSACTION	= 1 << 2,	INTEL_PT_PTW		= 1 << 3,	INTEL_PT_MWAIT_OP	= 1 << 4,	INTEL_PT_PWR_ENTRY	= 1 << 5,	INTEL_PT_EX_STOP	= 1 << 6,	INTEL_PT_PWR_EXIT	= 1 << 7,	INTEL_PT_CBR_CHG	= 1 << 8,}; enum intel_pt_period_type {	INTEL_PT_PERIOD_NONE,	INTEL_PT_PERIOD_INSTRUCTIONS,	INTEL_PT_PERIOD_TICKS,	INTEL_PT_PERIOD_MTC,}; enum {	INTEL_PT_ERR_NOMEM = 1,	INTEL_PT_ERR_INTERN,	INTEL_PT_ERR_BADPKT,	INTEL_PT_ERR_NODATA,	INTEL_PT_ERR_NOINSN,	INTEL_PT_ERR_MISMAT,	INTEL_PT_ERR_OVR,	INTEL_PT_ERR_LOST,	INTEL_PT_ERR_UNK,	INTEL_PT_ERR_NELOOP,	INTEL_PT_ERR_MAX,}; struct intel_pt_state {	enum intel_pt_sample_type type;	int err;	uint64_t from_ip;	uint64_t to_ip;	uint64_t cr3;	uint64_t tot_insn_cnt;	uint64_t timestamp;	uint64_t est_timestamp;	uint64_t trace_nr;	uint64_t ptw_payload;	uint64_t mwait_payload;	uint64_t pwre_payload;	uint64_t pwrx_payload;	uint64_t cbr_payload;	uint32_t flags;	enum intel_pt_insn_op insn_op;	int insn_len;	char insn[INTEL_PT_INSN_BUF_SZ];}; struct intel_pt_insn; struct intel_pt_buffer {	const unsigned char *buf;	size_t len;	bool consecutive;	uint64_t ref_timestamp;	uint64_t trace_nr;}; struct intel_pt_params {	int (*get_trace)(struct intel_pt_buffer *buffer, void *data);	int (*walk_insn)(struct intel_pt_insn *intel_pt_insn,			 uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip,			 uint64_t max_insn_cnt, void *data);	bool (*pgd_ip)(uint64_t ip, void *data);	void *data;	bool return_compression;	bool branch_enable;	uint64_t period;	enum intel_pt_period_type period_type;	unsigned max_non_turbo_ratio;	unsigned int mtc_period;	uint32_t tsc_ctc_ratio_n;	uint32_t tsc_ctc_ratio_d;}; struct intel_pt_decoder; struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params);void intel_pt_decoder_free(struct intel_pt_decoder *decoder); const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder); unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a,				     unsigned char *buf_b, size_t len_b,				     bool have_tsc); int intel_pt__strerror(int code, char *buf, size_t buflen); #endif