diff options
Diffstat (limited to 'tools/perf/util/intel-pt-decoder/intel-pt-decoder.h')
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/intel-pt-decoder.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h new file mode 100644 index 000000000..51c18d67f --- /dev/null +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h @@ -0,0 +1,133 @@ +/* + * 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, +}; + +enum intel_pt_param_flags { + /* + * FUP packet can contain next linear instruction pointer instead of + * current linear instruction pointer. + */ + INTEL_PT_FUP_WITH_NLIP = 1 << 0, +}; + +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; + enum intel_pt_param_flags flags; +}; + +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, bool *consecutive); + +int intel_pt__strerror(int code, char *buf, size_t buflen); + +#endif |