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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Arm Statistical Profiling Extensions (SPE) support
   4  * Copyright (c) 2017-2018, Arm Ltd.
   5  */
   6
   7 #ifndef INCLUDE__ARM_SPE_PKT_DECODER_H__
   8 #define INCLUDE__ARM_SPE_PKT_DECODER_H__
   9
  10 #include <stddef.h>
  11 #include <stdint.h>
  12
  13 #define ARM_SPE_PKT_DESC_MAX            256
  14
  15 #define ARM_SPE_NEED_MORE_BYTES         -1
  16 #define ARM_SPE_BAD_PACKET              -2
  17
  18 enum arm_spe_pkt_type {
  19         ARM_SPE_BAD,
  20         ARM_SPE_PAD,
  21         ARM_SPE_END,
  22         ARM_SPE_TIMESTAMP,
  23         ARM_SPE_ADDRESS,
  24         ARM_SPE_COUNTER,
  25         ARM_SPE_CONTEXT,
  26         ARM_SPE_OP_TYPE,
  27         ARM_SPE_EVENTS,
  28         ARM_SPE_DATA_SOURCE,
  29 };
  30
  31 struct arm_spe_pkt {
  32         enum arm_spe_pkt_type   type;
  33         unsigned char           index;
  34         uint64_t                payload;
  35 };
  36
  37 const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
  38
  39 int arm_spe_get_packet(const unsigned char *buf, size_t len,
  40                        struct arm_spe_pkt *packet);
  41
  42 int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len);
  43 #endif