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-rw-r--r--tools/perf/util/arm-spe-decoder/arm-spe-decoder.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
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+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
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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