/* * 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 #include #include #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) enum intel_pt_sample_type { INTEL_PT_BRANCH = 1 << 0, INTEL_PT_INSTRUCTION = 1 << 1, INTEL_PT_TRANSACTION = 1 << 2, }; 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; 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; 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 e>

path: root/net/kcm/kcmproc.c

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