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/* SPDX-License-Identifier: GPL-2.0 */
/*
* arm_spe_decoder.h: Arm Statistical Profiling Extensions support
* Copyright (c) 2019-2020, Arm Ltd.
*/
#ifndef INCLUDE__ARM_SPE_DECODER_H__
#define INCLUDE__ARM_SPE_DECODER_H__
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "arm-spe-pkt-decoder.h"
enum arm_spe_events {
EV_EXCEPTION_GEN = 0,
EV_RETIRED = 1,
EV_L1D_ACCESS = 2,
EV_L1D_REFILL = 3,
EV_TLB_ACCESS = 4,
EV_TLB_WALK = 5,
EV_NOT_TAKEN = 6,
EV_MISPRED = 7,
EV_LLC_ACCESS = 8,
EV_LLC_MISS = 9,
EV_REMOTE_ACCESS = 10,
EV_ALIGNMENT = 11,
EV_PARTIAL_PREDICATE = 17,
EV_EMPTY_PREDICATE = 18,
};
enum arm_spe_sample_type {
ARM_SPE_L1D_ACCESS = 1 << 0,
ARM_SPE_L1D_MISS = 1 << 1,
ARM_SPE_LLC_ACCESS = 1 << 2,
ARM_SPE_LLC_MISS = 1 << 3,
ARM_SPE_TLB_ACCESS = 1 << 4,
ARM_SPE_TLB_MISS = 1 << 5,
ARM_SPE_BRANCH_MISS = 1 << 6,
ARM_SPE_REMOTE_ACCESS = 1 << 7,
};
struct arm_spe_record {
enum arm_spe_sample_type type;
int err;
u64 from_ip;
u64 to_ip;
u64 timestamp;
};
struct arm_spe_insn;
struct arm_spe_buffer {
const unsigned char *buf;
size_t len;
u64 offset;
u64 trace_nr;
};
struct arm_spe_params {
int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
void *data;
};
struct arm_spe_decoder {
int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
void *data;
struct arm_spe_record record;
const unsigned char *buf;
size_t len;
struct arm_spe_pkt packet;
};
struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
int arm_spe_decode(struct arm_spe_decoder *decoder);
#endif
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