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29 #ifndef PT_QUERY_DECODER_H
30 #define PT_QUERY_DECODER_H
32 #include "pt_last_ip.h"
33 #include "pt_tnt_cache.h"
35 #include "pt_event_queue.h"
39 struct pt_decoder_function;
42 /* An Intel PT query decoder. */
43 struct pt_query_decoder {
44 /* The decoder configuration. */
45 struct pt_config config;
47 /* The current position in the trace buffer. */
50 /* The position of the last PSB packet. */
53 /* The decoding function for the next packet. */
54 const struct pt_decoder_function *next;
59 /* The cached tnt indicators. */
60 struct pt_tnt_cache tnt;
62 /* Timing information. */
65 /* The time at the last query (before reading ahead). */
66 struct pt_time last_time;
68 /* Timing calibration. */
69 struct pt_time_cal tcal;
71 /* Pending (incomplete) events. */
72 struct pt_event_queue evq;
74 /* The current event. */
75 struct pt_event *event;
77 /* A collection of flags relevant for decoding:
79 * - tracing is enabled.
83 /* - consume the current packet. */
84 uint32_t consume_packet:1;
87 /* Initialize the query decoder.
89 * Returns zero on success, a negative error code otherwise.
91 extern int pt_qry_decoder_init(struct pt_query_decoder *,
92 const struct pt_config *);
94 /* Finalize the query decoder. */
95 extern void pt_qry_decoder_fini(struct pt_query_decoder *);
97 /* Decoder functions (tracing context). */
98 extern int pt_qry_decode_unknown(struct pt_query_decoder *);
99 extern int pt_qry_decode_pad(struct pt_query_decoder *);
100 extern int pt_qry_decode_psb(struct pt_query_decoder *);
101 extern int pt_qry_decode_tip(struct pt_query_decoder *);
102 extern int pt_qry_decode_tnt_8(struct pt_query_decoder *);
103 extern int pt_qry_decode_tnt_64(struct pt_query_decoder *);
104 extern int pt_qry_decode_tip_pge(struct pt_query_decoder *);
105 extern int pt_qry_decode_tip_pgd(struct pt_query_decoder *);
106 extern int pt_qry_decode_fup(struct pt_query_decoder *);
107 extern int pt_qry_decode_pip(struct pt_query_decoder *);
108 extern int pt_qry_decode_ovf(struct pt_query_decoder *);
109 extern int pt_qry_decode_mode(struct pt_query_decoder *);
110 extern int pt_qry_decode_psbend(struct pt_query_decoder *);
111 extern int pt_qry_decode_tsc(struct pt_query_decoder *);
112 extern int pt_qry_header_tsc(struct pt_query_decoder *);
113 extern int pt_qry_decode_cbr(struct pt_query_decoder *);
114 extern int pt_qry_header_cbr(struct pt_query_decoder *);
115 extern int pt_qry_decode_tma(struct pt_query_decoder *);
116 extern int pt_qry_decode_mtc(struct pt_query_decoder *);
117 extern int pt_qry_decode_cyc(struct pt_query_decoder *);
118 extern int pt_qry_decode_stop(struct pt_query_decoder *);
119 extern int pt_qry_decode_vmcs(struct pt_query_decoder *);
120 extern int pt_qry_decode_mnt(struct pt_query_decoder *);
121 extern int pt_qry_decode_exstop(struct pt_query_decoder *);
122 extern int pt_qry_decode_mwait(struct pt_query_decoder *);
123 extern int pt_qry_decode_pwre(struct pt_query_decoder *);
124 extern int pt_qry_decode_pwrx(struct pt_query_decoder *);
125 extern int pt_qry_decode_ptw(struct pt_query_decoder *);
127 /* Decoder functions (header context). */
128 extern int pt_qry_header_fup(struct pt_query_decoder *);
129 extern int pt_qry_header_pip(struct pt_query_decoder *);
130 extern int pt_qry_header_mode(struct pt_query_decoder *);
131 extern int pt_qry_header_vmcs(struct pt_query_decoder *);
132 extern int pt_qry_header_mnt(struct pt_query_decoder *);
134 #endif /* PT_QUERY_DECODER_H */