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/* 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
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