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-rw-r--r--tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
new file mode 100644
index 000000000..4c870521b
--- /dev/null
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Arm Statistical Profiling Extensions (SPE) support
+ * Copyright (c) 2017-2018, Arm Ltd.
+ */
+
+#ifndef INCLUDE__ARM_SPE_PKT_DECODER_H__
+#define INCLUDE__ARM_SPE_PKT_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define ARM_SPE_PKT_DESC_MAX 256
+
+#define ARM_SPE_NEED_MORE_BYTES -1
+#define ARM_SPE_BAD_PACKET -2
+
+#define ARM_SPE_PKT_MAX_SZ 16
+
+enum arm_spe_pkt_type {
+ ARM_SPE_BAD,
+ ARM_SPE_PAD,
+ ARM_SPE_END,
+ ARM_SPE_TIMESTAMP,
+ ARM_SPE_ADDRESS,
+ ARM_SPE_COUNTER,
+ ARM_SPE_CONTEXT,
+ ARM_SPE_OP_TYPE,
+ ARM_SPE_EVENTS,
+ ARM_SPE_DATA_SOURCE,
+};
+
+struct arm_spe_pkt {
+ enum arm_spe_pkt_type type;
+ unsigned char index;
+ uint64_t payload;
+};
+
+#define SPE_ADDR_PKT_HDR_INDEX_INS (0x0)
+#define SPE_ADDR_PKT_HDR_INDEX_BRANCH (0x1)
+#define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT (0x2)
+#define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS (0x3)
+
+#define SPE_ADDR_PKT_NS BIT(7)
+#define SPE_ADDR_PKT_CH BIT(6)
+#define SPE_ADDR_PKT_EL_OFFSET (5)
+#define SPE_ADDR_PKT_EL_MASK (0x3 << SPE_ADDR_PKT_EL_OFFSET)
+#define SPE_ADDR_PKT_EL0 (0)
+#define SPE_ADDR_PKT_EL1 (1)
+#define SPE_ADDR_PKT_EL2 (2)
+#define SPE_ADDR_PKT_EL3 (3)
+
+const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
+
+int arm_spe_get_packet(const unsigned char *buf, size_t len,
+ struct arm_spe_pkt *packet);
+
+int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len);
+#endif