1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * arm_spe_decoder.h: Arm Statistical Profiling Extensions support 4 * Copyright (c) 2019-2020, Arm Ltd. 5 */ 6 7 #ifndef INCLUDE__ARM_SPE_DECODER_H__ 8 #define INCLUDE__ARM_SPE_DECODER_H__ 9 10 #include <stdbool.h> 11 #include <stddef.h> 12 #include <stdint.h> 13 14 #include "arm-spe-pkt-decoder.h" 15 16 enum arm_spe_sample_type { 17 ARM_SPE_L1D_ACCESS = 1 << 0, 18 ARM_SPE_L1D_MISS = 1 << 1, 19 ARM_SPE_LLC_ACCESS = 1 << 2, 20 ARM_SPE_LLC_MISS = 1 << 3, 21 ARM_SPE_TLB_ACCESS = 1 << 4, 22 ARM_SPE_TLB_MISS = 1 << 5, 23 ARM_SPE_BRANCH_MISS = 1 << 6, 24 ARM_SPE_REMOTE_ACCESS = 1 << 7, 25 ARM_SPE_SVE_PARTIAL_PRED = 1 << 8, 26 ARM_SPE_SVE_EMPTY_PRED = 1 << 9, 27 ARM_SPE_BRANCH_NOT_TAKEN = 1 << 10, 28 ARM_SPE_IN_TXN = 1 << 11, 29 }; 30 31 enum arm_spe_op_type { 32 /* First level operation type */ 33 ARM_SPE_OP_OTHER = 1 << 0, 34 ARM_SPE_OP_LDST = 1 << 1, 35 ARM_SPE_OP_BRANCH_ERET = 1 << 2, 36 37 /* Second level operation type for OTHER */ 38 ARM_SPE_OP_SVE_OTHER = 1 << 16, 39 ARM_SPE_OP_SVE_FP = 1 << 17, 40 ARM_SPE_OP_SVE_PRED_OTHER = 1 << 18, 41 42 /* Second level operation type for LDST */ 43 ARM_SPE_OP_LD = 1 << 16, 44 ARM_SPE_OP_ST = 1 << 17, 45 ARM_SPE_OP_ATOMIC = 1 << 18, 46 ARM_SPE_OP_EXCL = 1 << 19, 47 ARM_SPE_OP_AR = 1 << 20, 48 ARM_SPE_OP_SIMD_FP = 1 << 21, 49 ARM_SPE_OP_GP_REG = 1 << 22, 50 ARM_SPE_OP_UNSPEC_REG = 1 << 23, 51 ARM_SPE_OP_NV_SYSREG = 1 << 24, 52 ARM_SPE_OP_SVE_LDST = 1 << 25, 53 ARM_SPE_OP_SVE_PRED_LDST = 1 << 26, 54 ARM_SPE_OP_SVE_SG = 1 << 27, 55 56 /* Second level operation type for BRANCH_ERET */ 57 ARM_SPE_OP_BR_COND = 1 << 16, 58 ARM_SPE_OP_BR_INDIRECT = 1 << 17, 59 ARM_SPE_OP_BR_GCS = 1 << 18, 60 ARM_SPE_OP_BR_CR_BL = 1 << 19, 61 ARM_SPE_OP_BR_CR_RET = 1 << 20, 62 ARM_SPE_OP_BR_CR_NON_BL_RET = 1 << 21, 63 }; 64 65 enum arm_spe_common_data_source { 66 ARM_SPE_COMMON_DS_L1D = 0x0, 67 ARM_SPE_COMMON_DS_L2 = 0x8, 68 ARM_SPE_COMMON_DS_PEER_CORE = 0x9, 69 ARM_SPE_COMMON_DS_LOCAL_CLUSTER = 0xa, 70 ARM_SPE_COMMON_DS_SYS_CACHE = 0xb, 71 ARM_SPE_COMMON_DS_PEER_CLUSTER = 0xc, 72 ARM_SPE_COMMON_DS_REMOTE = 0xd, 73 ARM_SPE_COMMON_DS_DRAM = 0xe, 74 }; 75 76 enum arm_spe_ampereone_data_source { 77 ARM_SPE_AMPEREONE_LOCAL_CHIP_CACHE_OR_DEVICE = 0x0, 78 ARM_SPE_AMPEREONE_SLC = 0x3, 79 ARM_SPE_AMPEREONE_REMOTE_CHIP_CACHE = 0x5, 80 ARM_SPE_AMPEREONE_DDR = 0x7, 81 ARM_SPE_AMPEREONE_L1D = 0x8, 82 ARM_SPE_AMPEREONE_L2D = 0x9, 83 }; 84 85 struct arm_spe_record { 86 enum arm_spe_sample_type type; 87 int err; 88 u32 op; 89 u32 latency; 90 u64 from_ip; 91 u64 to_ip; 92 u64 prev_br_tgt; 93 u64 timestamp; 94 u64 virt_addr; 95 u64 phys_addr; 96 u64 context_id; 97 u16 source; 98 }; 99 100 struct arm_spe_insn; 101 102 struct arm_spe_buffer { 103 const unsigned char *buf; 104 size_t len; 105 u64 offset; 106 u64 trace_nr; 107 }; 108 109 struct arm_spe_params { 110 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 111 void *data; 112 }; 113 114 struct arm_spe_decoder { 115 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 116 void *data; 117 struct arm_spe_record record; 118 119 const unsigned char *buf; 120 size_t len; 121 122 struct arm_spe_pkt packet; 123 }; 124 125 struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params); 126 void arm_spe_decoder_free(struct arm_spe_decoder *decoder); 127 128 int arm_spe_decode(struct arm_spe_decoder *decoder); 129 130 #endif 131