1 /* SPDX-License-Identifier: GPL-2.0 */
3 * arm_spe_decoder.h: Arm Statistical Profiling Extensions support
4 * Copyright (c) 2019-2020, Arm Ltd.
7 #ifndef INCLUDE__ARM_SPE_DECODER_H__
8 #define INCLUDE__ARM_SPE_DECODER_H__
14 #include "arm-spe-pkt-decoder.h"
27 EV_REMOTE_ACCESS = 10,
29 EV_PARTIAL_PREDICATE = 17,
30 EV_EMPTY_PREDICATE = 18,
33 enum arm_spe_sample_type {
34 ARM_SPE_L1D_ACCESS = 1 << 0,
35 ARM_SPE_L1D_MISS = 1 << 1,
36 ARM_SPE_LLC_ACCESS = 1 << 2,
37 ARM_SPE_LLC_MISS = 1 << 3,
38 ARM_SPE_TLB_ACCESS = 1 << 4,
39 ARM_SPE_TLB_MISS = 1 << 5,
40 ARM_SPE_BRANCH_MISS = 1 << 6,
41 ARM_SPE_REMOTE_ACCESS = 1 << 7,
44 struct arm_spe_record {
45 enum arm_spe_sample_type type;
54 struct arm_spe_buffer {
55 const unsigned char *buf;
61 struct arm_spe_params {
62 int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
66 struct arm_spe_decoder {
67 int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
69 struct arm_spe_record record;
71 const unsigned char *buf;
74 struct arm_spe_pkt packet;
77 struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
78 void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
80 int arm_spe_decode(struct arm_spe_decoder *decoder);