tools/perf/util/arm-spe-decoder/arm-spe-decoder.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * arm_spe_decoder.h: Arm Statistical Profiling Extensions support
   4  * Copyright (c) 2019-2020, Arm Ltd.
   5  */
   6
   7 #ifndef INCLUDE__ARM_SPE_DECODER_H__
   8 #define INCLUDE__ARM_SPE_DECODER_H__
   9
  10 #include <stdbool.h>
  11 #include <stddef.h>
  12 #include <stdint.h>
  13
  14 #include "arm-spe-pkt-decoder.h"
  15
  16 enum arm_spe_sample_type {
  17         ARM_SPE_L1D_ACCESS      = 1 << 0,
  18         ARM_SPE_L1D_MISS        = 1 << 1,
  19         ARM_SPE_LLC_ACCESS      = 1 << 2,
  20         ARM_SPE_LLC_MISS        = 1 << 3,
  21         ARM_SPE_TLB_ACCESS      = 1 << 4,
  22         ARM_SPE_TLB_MISS        = 1 << 5,
  23         ARM_SPE_BRANCH_MISS     = 1 << 6,
  24         ARM_SPE_REMOTE_ACCESS   = 1 << 7,
  25 };
  26
  27 struct arm_spe_record {
  28         enum arm_spe_sample_type type;
  29         int err;
  30         u64 from_ip;
  31         u64 to_ip;
  32         u64 timestamp;
  33 };
  34
  35 struct arm_spe_insn;
  36
  37 struct arm_spe_buffer {
  38         const unsigned char *buf;
  39         size_t len;
  40         u64 offset;
  41         u64 trace_nr;
  42 };
  43
  44 struct arm_spe_params {
  45         int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
  46         void *data;
  47 };
  48
  49 struct arm_spe_decoder {
  50         int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
  51         void *data;
  52         struct arm_spe_record record;
  53
  54         const unsigned char *buf;
  55         size_t len;
  56
  57         struct arm_spe_pkt packet;
  58 };
  59
  60 struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
  61 void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
  62
  63 int arm_spe_decode(struct arm_spe_decoder *decoder);
  64
  65 #endif