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-rw-r--r--tools/perf/util/arm-spe-decoder/arm-spe-decoder.h87
1 files changed, 87 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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index 000000000..46a61df11
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+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -0,0 +1,87 @@
+/* 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_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,
+};
+
+enum arm_spe_op_type {
+ ARM_SPE_LD = 1 << 0,
+ ARM_SPE_ST = 1 << 1,
+};
+
+enum arm_spe_neoverse_data_source {
+ ARM_SPE_NV_L1D = 0x0,
+ ARM_SPE_NV_L2 = 0x8,
+ ARM_SPE_NV_PEER_CORE = 0x9,
+ ARM_SPE_NV_LOCAL_CLUSTER = 0xa,
+ ARM_SPE_NV_SYS_CACHE = 0xb,
+ ARM_SPE_NV_PEER_CLUSTER = 0xc,
+ ARM_SPE_NV_REMOTE = 0xd,
+ ARM_SPE_NV_DRAM = 0xe,
+};
+
+struct arm_spe_record {
+ enum arm_spe_sample_type type;
+ int err;
+ u32 op;
+ u32 latency;
+ u64 from_ip;
+ u64 to_ip;
+ u64 timestamp;
+ u64 virt_addr;
+ u64 phys_addr;
+ u64 context_id;
+ u16 source;
+};
+
+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