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 }; 26 27 enum arm_spe_op_type { 28 ARM_SPE_LD = 1 << 0, 29 ARM_SPE_ST = 1 << 1, 30 }; 31 32 struct arm_spe_record { 33 enum arm_spe_sample_type type; 34 int err; 35 u32 op; 36 u32 latency; 37 u64 from_ip; 38 u64 to_ip; 39 u64 timestamp; 40 u64 virt_addr; 41 u64 phys_addr; 42 u64 context_id; 43 }; 44 45 struct arm_spe_insn; 46 47 struct arm_spe_buffer { 48 const unsigned char *buf; 49 size_t len; 50 u64 offset; 51 u64 trace_nr; 52 }; 53 54 struct arm_spe_params { 55 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 56 void *data; 57 }; 58 59 struct arm_spe_decoder { 60 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 61 void *data; 62 struct arm_spe_record record; 63 64 const unsigned char *buf; 65 size_t len; 66 67 struct arm_spe_pkt packet; 68 }; 69 70 struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params); 71 void arm_spe_decoder_free(struct arm_spe_decoder *decoder); 72 73 int arm_spe_decode(struct arm_spe_decoder *decoder); 74 75 #endif 76