/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Arm Statistical Profiling Extensions (SPE) support
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* Copyright (c) 2017-2018, Arm Ltd.
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*/
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#ifndef INCLUDE__ARM_SPE_PKT_DECODER_H__
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#define INCLUDE__ARM_SPE_PKT_DECODER_H__
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#include <stddef.h>
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#include <stdint.h>
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#define ARM_SPE_PKT_DESC_MAX 256
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#define ARM_SPE_NEED_MORE_BYTES -1
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#define ARM_SPE_BAD_PACKET -2
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#define ARM_SPE_PKT_MAX_SZ 16
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enum arm_spe_pkt_type {
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ARM_SPE_BAD,
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ARM_SPE_PAD,
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ARM_SPE_END,
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ARM_SPE_TIMESTAMP,
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ARM_SPE_ADDRESS,
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ARM_SPE_COUNTER,
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ARM_SPE_CONTEXT,
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ARM_SPE_OP_TYPE,
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ARM_SPE_EVENTS,
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ARM_SPE_DATA_SOURCE,
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};
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struct arm_spe_pkt {
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enum arm_spe_pkt_type type;
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unsigned char index;
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uint64_t payload;
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};
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#define SPE_ADDR_PKT_HDR_INDEX_INS (0x0)
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#define SPE_ADDR_PKT_HDR_INDEX_BRANCH (0x1)
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#define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT (0x2)
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#define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS (0x3)
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#define SPE_ADDR_PKT_NS BIT(7)
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#define SPE_ADDR_PKT_CH BIT(6)
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#define SPE_ADDR_PKT_EL_OFFSET (5)
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#define SPE_ADDR_PKT_EL_MASK (0x3 << SPE_ADDR_PKT_EL_OFFSET)
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#define SPE_ADDR_PKT_EL0 (0)
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#define SPE_ADDR_PKT_EL1 (1)
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#define SPE_ADDR_PKT_EL2 (2)
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#define SPE_ADDR_PKT_EL3 (3)
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const char *arm_spe_pkt_name(enum arm_spe_pkt_type);
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int arm_spe_get_packet(const unsigned char *buf, size_t len,
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struct arm_spe_pkt *packet);
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int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len);
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#endif
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