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 u64 from_ip; 37 u64 to_ip; 38 u64 timestamp; 39 u64 virt_addr; 40 u64 phys_addr; 41 u64 context_id; 42 }; 43 44 struct arm_spe_insn; 45 46 struct arm_spe_buffer { 47 const unsigned char *buf; 48 size_t len; 49 u64 offset; 50 u64 trace_nr; 51 }; 52 53 struct arm_spe_params { 54 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 55 void *data; 56 }; 57 58 struct arm_spe_decoder { 59 int (*get_trace)(struct arm_spe_buffer *buffer, void *data); 60 void *data; 61 struct arm_spe_record record; 62 63 const unsigned char *buf; 64 size_t len; 65 66 struct arm_spe_pkt packet; 67 }; 68 69 struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params); 70 void arm_spe_decoder_free(struct arm_spe_decoder *decoder); 71 72 int arm_spe_decode(struct arm_spe_decoder *decoder); 73 74 #endif 75