1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * arm_spe_decoder.h: Arm Statistical Profiling Extensions support 4*4882a593Smuzhiyun * Copyright (c) 2019-2020, Arm Ltd. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef INCLUDE__ARM_SPE_DECODER_H__ 8*4882a593Smuzhiyun #define INCLUDE__ARM_SPE_DECODER_H__ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <stdbool.h> 11*4882a593Smuzhiyun #include <stddef.h> 12*4882a593Smuzhiyun #include <stdint.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #include "arm-spe-pkt-decoder.h" 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun enum arm_spe_events { 17*4882a593Smuzhiyun EV_EXCEPTION_GEN = 0, 18*4882a593Smuzhiyun EV_RETIRED = 1, 19*4882a593Smuzhiyun EV_L1D_ACCESS = 2, 20*4882a593Smuzhiyun EV_L1D_REFILL = 3, 21*4882a593Smuzhiyun EV_TLB_ACCESS = 4, 22*4882a593Smuzhiyun EV_TLB_WALK = 5, 23*4882a593Smuzhiyun EV_NOT_TAKEN = 6, 24*4882a593Smuzhiyun EV_MISPRED = 7, 25*4882a593Smuzhiyun EV_LLC_ACCESS = 8, 26*4882a593Smuzhiyun EV_LLC_MISS = 9, 27*4882a593Smuzhiyun EV_REMOTE_ACCESS = 10, 28*4882a593Smuzhiyun EV_ALIGNMENT = 11, 29*4882a593Smuzhiyun EV_PARTIAL_PREDICATE = 17, 30*4882a593Smuzhiyun EV_EMPTY_PREDICATE = 18, 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun enum arm_spe_sample_type { 34*4882a593Smuzhiyun ARM_SPE_L1D_ACCESS = 1 << 0, 35*4882a593Smuzhiyun ARM_SPE_L1D_MISS = 1 << 1, 36*4882a593Smuzhiyun ARM_SPE_LLC_ACCESS = 1 << 2, 37*4882a593Smuzhiyun ARM_SPE_LLC_MISS = 1 << 3, 38*4882a593Smuzhiyun ARM_SPE_TLB_ACCESS = 1 << 4, 39*4882a593Smuzhiyun ARM_SPE_TLB_MISS = 1 << 5, 40*4882a593Smuzhiyun ARM_SPE_BRANCH_MISS = 1 << 6, 41*4882a593Smuzhiyun ARM_SPE_REMOTE_ACCESS = 1 << 7, 42*4882a593Smuzhiyun }; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct arm_spe_record { 45*4882a593Smuzhiyun enum arm_spe_sample_type type; 46*4882a593Smuzhiyun int err; 47*4882a593Smuzhiyun u64 from_ip; 48*4882a593Smuzhiyun u64 to_ip; 49*4882a593Smuzhiyun u64 timestamp; 50*4882a593Smuzhiyun }; 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun struct arm_spe_insn; 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun struct arm_spe_buffer { 55*4882a593Smuzhiyun const unsigned char *buf; 56*4882a593Smuzhiyun size_t len; 57*4882a593Smuzhiyun u64 offset; 58*4882a593Smuzhiyun u64 trace_nr; 59*4882a593Smuzhiyun }; 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun struct arm_spe_params { 62*4882a593Smuzhiyun int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 63*4882a593Smuzhiyun void *data; 64*4882a593Smuzhiyun }; 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun struct arm_spe_decoder { 67*4882a593Smuzhiyun int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 68*4882a593Smuzhiyun void *data; 69*4882a593Smuzhiyun struct arm_spe_record record; 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun const unsigned char *buf; 72*4882a593Smuzhiyun size_t len; 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun struct arm_spe_pkt packet; 75*4882a593Smuzhiyun }; 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params); 78*4882a593Smuzhiyun void arm_spe_decoder_free(struct arm_spe_decoder *decoder); 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun int arm_spe_decode(struct arm_spe_decoder *decoder); 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun #endif 83