tools/perf/util/arm-spe-decoder/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 #define ARM_SPE_PKT_MAX_SZ              16
  19
  20 enum arm_spe_pkt_type {
  21         ARM_SPE_BAD,
  22         ARM_SPE_PAD,
  23         ARM_SPE_END,
  24         ARM_SPE_TIMESTAMP,
  25         ARM_SPE_ADDRESS,
  26         ARM_SPE_COUNTER,
  27         ARM_SPE_CONTEXT,
  28         ARM_SPE_OP_TYPE,
  29         ARM_SPE_EVENTS,
  30         ARM_SPE_DATA_SOURCE,
  31 };
  32
  33 struct arm_spe_pkt {
  34         enum arm_spe_pkt_type   type;
  35         unsigned char           index;
  36         uint64_t                payload;
  37 };
  38
  39 #define SPE_ADDR_PKT_HDR_INDEX_INS              (0x0)
  40 #define SPE_ADDR_PKT_HDR_INDEX_BRANCH           (0x1)
  41 #define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT        (0x2)
  42 #define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS        (0x3)
  43
  44 #define SPE_ADDR_PKT_NS                         BIT(7)
  45 #define SPE_ADDR_PKT_CH                         BIT(6)
  46 #define SPE_ADDR_PKT_EL_OFFSET                  (5)
  47 #define SPE_ADDR_PKT_EL_MASK                    (0x3 << SPE_ADDR_PKT_EL_OFFSET)
  48 #define SPE_ADDR_PKT_EL0                        (0)
  49 #define SPE_ADDR_PKT_EL1                        (1)
  50 #define SPE_ADDR_PKT_EL2                        (2)
  51 #define SPE_ADDR_PKT_EL3                        (3)
  52
  53 const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
  54
  55 int arm_spe_get_packet(const unsigned char *buf, size_t len,
  56                        struct arm_spe_pkt *packet);
  57
  58 int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len);
  59 #endif