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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#define ARM_SPE_L1D_ACCESS BIT(EV_L1D_ACCESS)
17#define ARM_SPE_L1D_MISS BIT(EV_L1D_REFILL)
18#define ARM_SPE_LLC_ACCESS BIT(EV_LLC_ACCESS)
19#define ARM_SPE_LLC_MISS BIT(EV_LLC_MISS)
20#define ARM_SPE_TLB_ACCESS BIT(EV_TLB_ACCESS)
21#define ARM_SPE_TLB_MISS BIT(EV_TLB_WALK)
22#define ARM_SPE_BRANCH_MISS BIT(EV_MISPRED)
23#define ARM_SPE_BRANCH_NOT_TAKEN BIT(EV_NOT_TAKEN)
24#define ARM_SPE_REMOTE_ACCESS BIT(EV_REMOTE_ACCESS)
25#define ARM_SPE_SVE_PARTIAL_PRED BIT(EV_PARTIAL_PREDICATE)
26#define ARM_SPE_SVE_EMPTY_PRED BIT(EV_EMPTY_PREDICATE)
27#define ARM_SPE_IN_TXN BIT(EV_TRANSACTIONAL)
28#define ARM_SPE_L2D_ACCESS BIT(EV_L2D_ACCESS)
29#define ARM_SPE_L2D_MISS BIT(EV_L2D_MISS)
30#define ARM_SPE_RECENTLY_FETCHED BIT(EV_RECENTLY_FETCHED)
31#define ARM_SPE_DATA_SNOOPED BIT(EV_DATA_SNOOPED)
32#define ARM_SPE_HITM BIT(EV_CACHE_DATA_MODIFIED)
33
34enum arm_spe_op_type {
35 /* First level operation type */
36 ARM_SPE_OP_OTHER = 1 << 0,
37 ARM_SPE_OP_LDST = 1 << 1,
38 ARM_SPE_OP_BRANCH_ERET = 1 << 2,
39};
40
41enum arm_spe_2nd_op_ldst {
42 ARM_SPE_OP_GP_REG = 1 << 8,
43 ARM_SPE_OP_UNSPEC_REG = 1 << 9,
44 ARM_SPE_OP_NV_SYSREG = 1 << 10,
45 ARM_SPE_OP_SIMD_FP = 1 << 11,
46 ARM_SPE_OP_SVE = 1 << 12,
47 ARM_SPE_OP_MTE_TAG = 1 << 13,
48 ARM_SPE_OP_MEMCPY = 1 << 14,
49 ARM_SPE_OP_MEMSET = 1 << 15,
50 ARM_SPE_OP_GCS = 1 << 16,
51 ARM_SPE_OP_SME = 1 << 17,
52 ARM_SPE_OP_ASE = 1 << 18,
53
54 /* Assisted information for memory / SIMD */
55 ARM_SPE_OP_LD = 1 << 20,
56 ARM_SPE_OP_ST = 1 << 21,
57 ARM_SPE_OP_ATOMIC = 1 << 22,
58 ARM_SPE_OP_EXCL = 1 << 23,
59 ARM_SPE_OP_AR = 1 << 24,
60 ARM_SPE_OP_DP = 1 << 25, /* Data processing */
61 ARM_SPE_OP_PRED = 1 << 26, /* Predicated */
62 ARM_SPE_OP_SG = 1 << 27, /* Gather/Scatter */
63 ARM_SPE_OP_COMM = 1 << 28, /* Common */
64 ARM_SPE_OP_FP = 1 << 29, /* Floating-point */
65 ARM_SPE_OP_COND = 1 << 30, /* Conditional */
66};
67
68enum arm_spe_2nd_op_branch {
69 ARM_SPE_OP_BR_COND = 1 << 8,
70 ARM_SPE_OP_BR_INDIRECT = 1 << 9,
71 ARM_SPE_OP_BR_GCS = 1 << 10,
72 ARM_SPE_OP_BR_CR_BL = 1 << 11,
73 ARM_SPE_OP_BR_CR_RET = 1 << 12,
74 ARM_SPE_OP_BR_CR_NON_BL_RET = 1 << 13,
75};
76
77enum arm_spe_common_data_source {
78 ARM_SPE_COMMON_DS_L1D = 0x0,
79 ARM_SPE_COMMON_DS_L2 = 0x8,
80 ARM_SPE_COMMON_DS_PEER_CORE = 0x9,
81 ARM_SPE_COMMON_DS_LOCAL_CLUSTER = 0xa,
82 ARM_SPE_COMMON_DS_SYS_CACHE = 0xb,
83 ARM_SPE_COMMON_DS_PEER_CLUSTER = 0xc,
84 ARM_SPE_COMMON_DS_REMOTE = 0xd,
85 ARM_SPE_COMMON_DS_DRAM = 0xe,
86};
87
88enum arm_spe_ampereone_data_source {
89 ARM_SPE_AMPEREONE_LOCAL_CHIP_CACHE_OR_DEVICE = 0x0,
90 ARM_SPE_AMPEREONE_SLC = 0x3,
91 ARM_SPE_AMPEREONE_REMOTE_CHIP_CACHE = 0x5,
92 ARM_SPE_AMPEREONE_DDR = 0x7,
93 ARM_SPE_AMPEREONE_L1D = 0x8,
94 ARM_SPE_AMPEREONE_L2D = 0x9,
95};
96
97enum arm_spe_hisi_hip_data_source {
98 ARM_SPE_HISI_HIP_PEER_CPU = 0,
99 ARM_SPE_HISI_HIP_PEER_CPU_HITM = 1,
100 ARM_SPE_HISI_HIP_L3 = 2,
101 ARM_SPE_HISI_HIP_L3_HITM = 3,
102 ARM_SPE_HISI_HIP_PEER_CLUSTER = 4,
103 ARM_SPE_HISI_HIP_PEER_CLUSTER_HITM = 5,
104 ARM_SPE_HISI_HIP_REMOTE_SOCKET = 6,
105 ARM_SPE_HISI_HIP_REMOTE_SOCKET_HITM = 7,
106 ARM_SPE_HISI_HIP_LOCAL_MEM = 8,
107 ARM_SPE_HISI_HIP_REMOTE_MEM = 9,
108 ARM_SPE_HISI_HIP_NC_DEV = 13,
109 ARM_SPE_HISI_HIP_L2 = 16,
110 ARM_SPE_HISI_HIP_L2_HITM = 17,
111 ARM_SPE_HISI_HIP_L1 = 18,
112};
113
114struct arm_spe_record {
115 u64 type;
116 int err;
117 u32 op;
118 u32 latency;
119 u64 from_ip;
120 u64 to_ip;
121 u64 prev_br_tgt;
122 u64 timestamp;
123 u64 virt_addr;
124 u64 phys_addr;
125 u64 context_id;
126 u16 source;
127};
128
129struct arm_spe_insn;
130
131struct arm_spe_buffer {
132 const unsigned char *buf;
133 size_t len;
134 u64 offset;
135 u64 trace_nr;
136};
137
138struct arm_spe_params {
139 int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
140 void *data;
141};
142
143struct arm_spe_decoder {
144 int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
145 void *data;
146 struct arm_spe_record record;
147
148 const unsigned char *buf;
149 size_t len;
150
151 struct arm_spe_pkt packet;
152};
153
154struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
155void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
156
157int arm_spe_decode(struct arm_spe_decoder *decoder);
158
159#endif