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7#ifndef INCLUDE__UTIL_PERF_CS_ETM_H__
8#define INCLUDE__UTIL_PERF_CS_ETM_H__
9
10#include "util/event.h"
11#include "util/session.h"
12#include <linux/bits.h>
13
14
15
16
17enum {
18
19 CS_HEADER_VERSION_0,
20
21 CS_PMU_TYPE_CPUS,
22 CS_ETM_SNAPSHOT,
23 CS_HEADER_VERSION_0_MAX,
24};
25
26
27enum {
28 CS_ETM_MAGIC,
29 CS_ETM_CPU,
30};
31
32
33enum {
34
35 CS_ETM_ETMCR = CS_ETM_CPU + 1,
36 CS_ETM_ETMTRACEIDR,
37
38 CS_ETM_ETMCCER,
39 CS_ETM_ETMIDR,
40 CS_ETM_PRIV_MAX,
41};
42
43
44enum {
45
46 CS_ETMV4_TRCCONFIGR = CS_ETM_CPU + 1,
47 CS_ETMV4_TRCTRACEIDR,
48
49 CS_ETMV4_TRCIDR0,
50 CS_ETMV4_TRCIDR1,
51 CS_ETMV4_TRCIDR2,
52 CS_ETMV4_TRCIDR8,
53 CS_ETMV4_TRCAUTHSTATUS,
54 CS_ETMV4_PRIV_MAX,
55};
56
57
58
59
60
61
62enum {
63 CS_ETMV3_EXC_NONE = 0,
64 CS_ETMV3_EXC_DEBUG_HALT = 1,
65 CS_ETMV3_EXC_SMC = 2,
66 CS_ETMV3_EXC_HYP = 3,
67 CS_ETMV3_EXC_ASYNC_DATA_ABORT = 4,
68 CS_ETMV3_EXC_JAZELLE_THUMBEE = 5,
69 CS_ETMV3_EXC_PE_RESET = 8,
70 CS_ETMV3_EXC_UNDEFINED_INSTR = 9,
71 CS_ETMV3_EXC_SVC = 10,
72 CS_ETMV3_EXC_PREFETCH_ABORT = 11,
73 CS_ETMV3_EXC_DATA_FAULT = 12,
74 CS_ETMV3_EXC_GENERIC = 13,
75 CS_ETMV3_EXC_IRQ = 14,
76 CS_ETMV3_EXC_FIQ = 15,
77};
78
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82
83
84
85enum {
86 CS_ETMV4_EXC_RESET = 0,
87 CS_ETMV4_EXC_DEBUG_HALT = 1,
88 CS_ETMV4_EXC_CALL = 2,
89 CS_ETMV4_EXC_TRAP = 3,
90 CS_ETMV4_EXC_SYSTEM_ERROR = 4,
91 CS_ETMV4_EXC_INST_DEBUG = 6,
92 CS_ETMV4_EXC_DATA_DEBUG = 7,
93 CS_ETMV4_EXC_ALIGNMENT = 10,
94 CS_ETMV4_EXC_INST_FAULT = 11,
95 CS_ETMV4_EXC_DATA_FAULT = 12,
96 CS_ETMV4_EXC_IRQ = 14,
97 CS_ETMV4_EXC_FIQ = 15,
98 CS_ETMV4_EXC_END = 31,
99};
100
101enum cs_etm_sample_type {
102 CS_ETM_EMPTY,
103 CS_ETM_RANGE,
104 CS_ETM_DISCONTINUITY,
105 CS_ETM_EXCEPTION,
106 CS_ETM_EXCEPTION_RET,
107};
108
109enum cs_etm_isa {
110 CS_ETM_ISA_UNKNOWN,
111 CS_ETM_ISA_A64,
112 CS_ETM_ISA_A32,
113 CS_ETM_ISA_T32,
114};
115
116
117struct intlist *traceid_list;
118
119struct cs_etm_queue;
120
121struct cs_etm_packet {
122 enum cs_etm_sample_type sample_type;
123 enum cs_etm_isa isa;
124 u64 start_addr;
125 u64 end_addr;
126 u32 instr_count;
127 u32 last_instr_type;
128 u32 last_instr_subtype;
129 u32 flags;
130 u32 exception_number;
131 u8 last_instr_cond;
132 u8 last_instr_taken_branch;
133 u8 last_instr_size;
134 u8 trace_chan_id;
135 int cpu;
136};
137
138#define CS_ETM_PACKET_MAX_BUFFER 1024
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146
147
148#define CS_ETM_PER_THREAD_TRACEID 0
149
150struct cs_etm_packet_queue {
151 u32 packet_count;
152 u32 head;
153 u32 tail;
154 u32 instr_count;
155 u64 timestamp;
156 u64 next_timestamp;
157 struct cs_etm_packet packet_buffer[CS_ETM_PACKET_MAX_BUFFER];
158};
159
160#define KiB(x) ((x) * 1024)
161#define MiB(x) ((x) * 1024 * 1024)
162
163#define CS_ETM_INVAL_ADDR 0xdeadbeefdeadbeefUL
164
165#define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb)
166
167#define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_0_MAX * sizeof(u64))
168
169#define __perf_cs_etmv3_magic 0x3030303030303030ULL
170#define __perf_cs_etmv4_magic 0x4040404040404040ULL
171#define CS_ETMV3_PRIV_SIZE (CS_ETM_PRIV_MAX * sizeof(u64))
172#define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64))
173
174#ifdef HAVE_CSTRACE_SUPPORT
175int cs_etm__process_auxtrace_info(union perf_event *event,
176 struct perf_session *session);
177int cs_etm__get_cpu(u8 trace_chan_id, int *cpu);
178int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq,
179 pid_t tid, u8 trace_chan_id);
180bool cs_etm__etmq_is_timeless(struct cs_etm_queue *etmq);
181void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq,
182 u8 trace_chan_id);
183struct cs_etm_packet_queue
184*cs_etm__etmq_get_packet_queue(struct cs_etm_queue *etmq, u8 trace_chan_id);
185#else
186static inline int
187cs_etm__process_auxtrace_info(union perf_event *event __maybe_unused,
188 struct perf_session *session __maybe_unused)
189{
190 return -1;
191}
192
193static inline int cs_etm__get_cpu(u8 trace_chan_id __maybe_unused,
194 int *cpu __maybe_unused)
195{
196 return -1;
197}
198
199static inline int cs_etm__etmq_set_tid(
200 struct cs_etm_queue *etmq __maybe_unused,
201 pid_t tid __maybe_unused,
202 u8 trace_chan_id __maybe_unused)
203{
204 return -1;
205}
206
207static inline bool cs_etm__etmq_is_timeless(
208 struct cs_etm_queue *etmq __maybe_unused)
209{
210
211 return true;
212}
213
214static inline void cs_etm__etmq_set_traceid_queue_timestamp(
215 struct cs_etm_queue *etmq __maybe_unused,
216 u8 trace_chan_id __maybe_unused) {}
217
218static inline struct cs_etm_packet_queue *cs_etm__etmq_get_packet_queue(
219 struct cs_etm_queue *etmq __maybe_unused,
220 u8 trace_chan_id __maybe_unused)
221{
222 return NULL;
223}
224#endif
225
226#endif
227