1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Arm Statistical Profiling Extensions (SPE) support 4*4882a593Smuzhiyun * Copyright (c) 2017-2018, Arm Ltd. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef INCLUDE__ARM_SPE_PKT_DECODER_H__ 8*4882a593Smuzhiyun #define INCLUDE__ARM_SPE_PKT_DECODER_H__ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <stddef.h> 11*4882a593Smuzhiyun #include <stdint.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define ARM_SPE_PKT_DESC_MAX 256 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #define ARM_SPE_NEED_MORE_BYTES -1 16*4882a593Smuzhiyun #define ARM_SPE_BAD_PACKET -2 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define ARM_SPE_PKT_MAX_SZ 16 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun enum arm_spe_pkt_type { 21*4882a593Smuzhiyun ARM_SPE_BAD, 22*4882a593Smuzhiyun ARM_SPE_PAD, 23*4882a593Smuzhiyun ARM_SPE_END, 24*4882a593Smuzhiyun ARM_SPE_TIMESTAMP, 25*4882a593Smuzhiyun ARM_SPE_ADDRESS, 26*4882a593Smuzhiyun ARM_SPE_COUNTER, 27*4882a593Smuzhiyun ARM_SPE_CONTEXT, 28*4882a593Smuzhiyun ARM_SPE_OP_TYPE, 29*4882a593Smuzhiyun ARM_SPE_EVENTS, 30*4882a593Smuzhiyun ARM_SPE_DATA_SOURCE, 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun struct arm_spe_pkt { 34*4882a593Smuzhiyun enum arm_spe_pkt_type type; 35*4882a593Smuzhiyun unsigned char index; 36*4882a593Smuzhiyun uint64_t payload; 37*4882a593Smuzhiyun }; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #define SPE_ADDR_PKT_HDR_INDEX_INS (0x0) 40*4882a593Smuzhiyun #define SPE_ADDR_PKT_HDR_INDEX_BRANCH (0x1) 41*4882a593Smuzhiyun #define SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT (0x2) 42*4882a593Smuzhiyun #define SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS (0x3) 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #define SPE_ADDR_PKT_NS BIT(7) 45*4882a593Smuzhiyun #define SPE_ADDR_PKT_CH BIT(6) 46*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL_OFFSET (5) 47*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL_MASK (0x3 << SPE_ADDR_PKT_EL_OFFSET) 48*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL0 (0) 49*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL1 (1) 50*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL2 (2) 51*4882a593Smuzhiyun #define SPE_ADDR_PKT_EL3 (3) 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun const char *arm_spe_pkt_name(enum arm_spe_pkt_type); 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun int arm_spe_get_packet(const unsigned char *buf, size_t len, 56*4882a593Smuzhiyun struct arm_spe_pkt *packet); 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf, size_t len); 59*4882a593Smuzhiyun #endif 60