Lines Matching refs:decoder
22 #include "intel-pt-insn-decoder.h"
23 #include "intel-pt-pkt-decoder.h"
24 #include "intel-pt-decoder.h"
111 #define INTEL_PT_STATE_ERR1 (decoder->pkt_state)
269 static bool intel_pt_print_once(struct intel_pt_decoder *decoder,
274 if (decoder->print_once & bit)
276 decoder->print_once |= bit;
288 static void intel_pt_setup_period(struct intel_pt_decoder *decoder)
290 if (decoder->period_type == INTEL_PT_PERIOD_TICKS) {
293 period = intel_pt_lower_power_of_2(decoder->period);
294 decoder->period_mask = ~(period - 1);
295 decoder->period_ticks = period;
308 struct intel_pt_decoder *decoder;
313 decoder = zalloc(sizeof(struct intel_pt_decoder));
314 if (!decoder)
317 decoder->get_trace = params->get_trace;
318 decoder->walk_insn = params->walk_insn;
319 decoder->pgd_ip = params->pgd_ip;
320 decoder->lookahead = params->lookahead;
321 decoder->findnew_vmcs_info = params->findnew_vmcs_info;
322 decoder->data = params->data;
323 decoder->return_compression = params->return_compression;
324 decoder->branch_enable = params->branch_enable;
325 decoder->hop = params->quick >= 1;
326 decoder->leap = params->quick >= 2;
327 decoder->vm_time_correlation = params->vm_time_correlation;
328 decoder->vm_tm_corr_dry_run = params->vm_tm_corr_dry_run;
329 decoder->first_timestamp = params->first_timestamp;
330 decoder->last_reliable_timestamp = params->first_timestamp;
331 decoder->max_loops = params->max_loops ? params->max_loops : INTEL_PT_MAX_LOOPS;
333 decoder->flags = params->flags;
335 decoder->ctl = params->ctl;
336 decoder->period = params->period;
337 decoder->period_type = params->period_type;
339 decoder->max_non_turbo_ratio = params->max_non_turbo_ratio;
340 decoder->max_non_turbo_ratio_fp = params->max_non_turbo_ratio;
342 decoder->cyc_threshold = intel_pt_cyc_threshold(decoder->ctl);
344 intel_pt_setup_period(decoder);
346 decoder->mtc_shift = params->mtc_period;
347 decoder->ctc_rem_mask = (1 << decoder->mtc_shift) - 1;
349 decoder->tsc_ctc_ratio_n = params->tsc_ctc_ratio_n;
350 decoder->tsc_ctc_ratio_d = params->tsc_ctc_ratio_d;
352 if (!decoder->tsc_ctc_ratio_n)
353 decoder->tsc_ctc_ratio_d = 0;
355 if (decoder->tsc_ctc_ratio_d) {
356 if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
357 decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
358 decoder->tsc_ctc_ratio_d;
367 decoder->tsc_slip = 0x10000;
369 intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
370 intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);
371 intel_pt_log("timestamp: tsc_ctc_ratio_d %u\n", decoder->tsc_ctc_ratio_d);
372 intel_pt_log("timestamp: tsc_ctc_mult %u\n", decoder->tsc_ctc_mult);
373 intel_pt_log("timestamp: tsc_slip %#x\n", decoder->tsc_slip);
375 if (decoder->hop)
378 return decoder;
381 void intel_pt_set_first_timestamp(struct intel_pt_decoder *decoder,
384 decoder->first_timestamp = first_timestamp;
458 void intel_pt_decoder_free(struct intel_pt_decoder *decoder)
460 intel_pt_free_stack(&decoder->stack);
461 free(decoder);
548 static inline void intel_pt_set_last_ip(struct intel_pt_decoder *decoder)
550 decoder->last_ip = intel_pt_calc_ip(&decoder->packet, decoder->last_ip);
551 decoder->have_last_ip = true;
554 static inline void intel_pt_set_ip(struct intel_pt_decoder *decoder)
556 intel_pt_set_last_ip(decoder);
557 decoder->ip = decoder->last_ip;
560 static void intel_pt_decoder_log_packet(struct intel_pt_decoder *decoder)
562 intel_pt_log_packet(&decoder->packet, decoder->pkt_len, decoder->pos,
563 decoder->buf);
566 static int intel_pt_bug(struct intel_pt_decoder *decoder)
569 decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
573 static inline void intel_pt_clear_tx_flags(struct intel_pt_decoder *decoder)
575 decoder->tx_flags = 0;
578 static inline void intel_pt_update_in_tx(struct intel_pt_decoder *decoder)
580 decoder->tx_flags = decoder->packet.payload & INTEL_PT_IN_TX;
583 static inline void intel_pt_update_pip(struct intel_pt_decoder *decoder)
585 decoder->pip_payload = decoder->packet.payload;
588 static inline void intel_pt_update_nr(struct intel_pt_decoder *decoder)
590 decoder->next_nr = decoder->pip_payload & 1;
593 static inline void intel_pt_set_nr(struct intel_pt_decoder *decoder)
595 decoder->nr = decoder->pip_payload & 1;
596 decoder->next_nr = decoder->nr;
599 static inline void intel_pt_set_pip(struct intel_pt_decoder *decoder)
601 intel_pt_update_pip(decoder);
602 intel_pt_set_nr(decoder);
605 static int intel_pt_bad_packet(struct intel_pt_decoder *decoder)
607 intel_pt_clear_tx_flags(decoder);
608 decoder->have_tma = false;
609 decoder->pkt_len = 1;
610 decoder->pkt_step = 1;
611 intel_pt_decoder_log_packet(decoder);
612 if (decoder->pkt_state != INTEL_PT_STATE_NO_PSB) {
614 decoder->pkt_state = INTEL_PT_STATE_ERR1;
619 static inline void intel_pt_update_sample_time(struct intel_pt_decoder *decoder)
621 decoder->sample_timestamp = decoder->timestamp;
622 decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
623 decoder->state.cycles = decoder->tot_cyc_cnt;
626 static void intel_pt_reposition(struct intel_pt_decoder *decoder)
628 decoder->ip = 0;
629 decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
630 decoder->timestamp = 0;
631 decoder->have_tma = false;
634 static int intel_pt_get_data(struct intel_pt_decoder *decoder, bool reposition)
639 decoder->pkt_step = 0;
642 ret = decoder->get_trace(&buffer, decoder->data);
645 decoder->buf = buffer.buf;
646 decoder->len = buffer.len;
647 if (!decoder->len) {
651 decoder->buf_timestamp = buffer.ref_timestamp;
653 intel_pt_reposition(decoder);
654 decoder->ref_timestamp = buffer.ref_timestamp;
655 decoder->state.trace_nr = buffer.trace_nr;
656 decoder->vm_tm_corr_same_buf = false;
658 decoder->ref_timestamp);
665 static int intel_pt_get_next_data(struct intel_pt_decoder *decoder,
668 if (!decoder->next_buf)
669 return intel_pt_get_data(decoder, reposition);
671 decoder->buf = decoder->next_buf;
672 decoder->len = decoder->next_len;
673 decoder->next_buf = 0;
674 decoder->next_len = 0;
678 static int intel_pt_get_split_packet(struct intel_pt_decoder *decoder)
680 unsigned char *buf = decoder->temp_buf;
684 old_len = decoder->len;
685 len = decoder->len;
686 memcpy(buf, decoder->buf, len);
688 ret = intel_pt_get_data(decoder, false);
690 decoder->pos += old_len;
695 if (n > decoder->len)
696 n = decoder->len;
697 memcpy(buf + len, decoder->buf, n);
700 decoder->prev_pkt_ctx = decoder->pkt_ctx;
701 ret = intel_pt_get_packet(buf, len, &decoder->packet, &decoder->pkt_ctx);
703 decoder->next_buf = decoder->buf;
704 decoder->next_len = decoder->len;
705 decoder->buf = buf;
706 decoder->len = old_len;
707 return intel_pt_bad_packet(decoder);
710 decoder->next_buf = decoder->buf + (ret - old_len);
711 decoder->next_len = decoder->len - (ret - old_len);
713 decoder->buf = buf;
714 decoder->len = ret;
720 struct intel_pt_decoder *decoder;
731 static int intel_pt_pkt_lookahead(struct intel_pt_decoder *decoder,
735 const unsigned char *buf = decoder->buf;
736 enum intel_pt_pkt_ctx pkt_ctx = decoder->pkt_ctx;
737 size_t len = decoder->len;
740 pkt_info.decoder = decoder;
741 pkt_info.pos = decoder->pos;
742 pkt_info.pkt_len = decoder->pkt_step;
743 pkt_info.last_packet_type = decoder->last_packet_type;
809 struct intel_pt_decoder *decoder = pkt_info->decoder;
845 if (decoder->mtc_shift > 8 && data->fixup_last_mtc) {
847 intel_pt_fixup_last_mtc(mtc, decoder->mtc_shift,
854 data->ctc_delta += mtc_delta << decoder->mtc_shift;
857 if (decoder->tsc_ctc_mult) {
859 data->ctc_delta * decoder->tsc_ctc_mult;
863 decoder->tsc_ctc_ratio_n,
864 decoder->tsc_ctc_ratio_d);
887 data->timestamp - timestamp < decoder->tsc_slip)
904 if (!decoder->tsc_ctc_ratio_d)
909 ctc_rem = ctc & decoder->ctc_rem_mask;
911 data->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
914 if (decoder->tsc_ctc_mult) {
915 data->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
918 multdiv(ctc_rem, decoder->tsc_ctc_ratio_n,
919 decoder->tsc_ctc_ratio_d);
937 data->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
953 if (!data->cbr && decoder->cbr) {
954 data->cbr = decoder->cbr;
955 data->cbr_cyc_to_tsc = decoder->cbr_cyc_to_tsc;
961 cyc_to_tsc = (double)(timestamp - decoder->timestamp) / data->cycle_cnt;
970 decoder->calc_cyc_to_tsc = cyc_to_tsc;
971 decoder->have_calc_cyc_to_tsc = true;
984 static void intel_pt_calc_cyc_to_tsc(struct intel_pt_decoder *decoder,
990 .last_mtc = decoder->last_mtc,
991 .ctc_timestamp = decoder->ctc_timestamp,
992 .ctc_delta = decoder->ctc_delta,
993 .tsc_timestamp = decoder->tsc_timestamp,
994 .timestamp = decoder->timestamp,
995 .have_tma = decoder->have_tma,
996 .fixup_last_mtc = decoder->fixup_last_mtc,
1009 intel_pt_pkt_lookahead(decoder, intel_pt_calc_cyc_cb, &data);
1012 static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder)
1016 decoder->last_packet_type = decoder->packet.type;
1019 decoder->pos += decoder->pkt_step;
1020 decoder->buf += decoder->pkt_step;
1021 decoder->len -= decoder->pkt_step;
1023 if (!decoder->len) {
1024 ret = intel_pt_get_next_data(decoder, false);
1029 decoder->prev_pkt_ctx = decoder->pkt_ctx;
1030 ret = intel_pt_get_packet(decoder->buf, decoder->len,
1031 &decoder->packet, &decoder->pkt_ctx);
1033 decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) {
1034 ret = intel_pt_get_split_packet(decoder);
1039 return intel_pt_bad_packet(decoder);
1041 decoder->pkt_len = ret;
1042 decoder->pkt_step = ret;
1043 intel_pt_decoder_log_packet(decoder);
1044 } while (decoder->packet.type == INTEL_PT_PAD);
1049 static uint64_t intel_pt_next_period(struct intel_pt_decoder *decoder)
1053 timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
1054 masked_timestamp = timestamp & decoder->period_mask;
1055 if (decoder->continuous_period) {
1056 if (masked_timestamp > decoder->last_masked_timestamp)
1060 masked_timestamp = timestamp & decoder->period_mask;
1061 if (masked_timestamp > decoder->last_masked_timestamp) {
1062 decoder->last_masked_timestamp = masked_timestamp;
1063 decoder->continuous_period = true;
1067 if (masked_timestamp < decoder->last_masked_timestamp)
1068 return decoder->period_ticks;
1070 return decoder->period_ticks - (timestamp - masked_timestamp);
1073 static uint64_t intel_pt_next_sample(struct intel_pt_decoder *decoder)
1075 switch (decoder->period_type) {
1077 return decoder->period - decoder->period_insn_cnt;
1079 return intel_pt_next_period(decoder);
1087 static void intel_pt_sample_insn(struct intel_pt_decoder *decoder)
1091 switch (decoder->period_type) {
1093 decoder->period_insn_cnt = 0;
1096 timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
1097 masked_timestamp = timestamp & decoder->period_mask;
1098 if (masked_timestamp > decoder->last_masked_timestamp)
1099 decoder->last_masked_timestamp = masked_timestamp;
1101 decoder->last_masked_timestamp += decoder->period_ticks;
1109 decoder->state.type |= INTEL_PT_INSTRUCTION;
1116 static void intel_pt_sample_fup_insn(struct intel_pt_decoder *decoder)
1122 decoder->state.insn_op = INTEL_PT_OP_OTHER;
1123 decoder->state.insn_len = 0;
1125 if (!decoder->branch_enable || !decoder->pge || decoder->hop ||
1126 decoder->ip != decoder->last_ip)
1129 if (!decoder->mtc_insn)
1130 decoder->mtc_insn = true;
1132 max_insn_cnt = intel_pt_next_sample(decoder);
1136 err = decoder->walk_insn(&intel_pt_insn, &insn_cnt, &decoder->ip,
1137 0, max_insn_cnt, decoder->data);
1143 intel_pt_log_at("ERROR: Unexpected branch at FUP instruction", decoder->ip);
1147 decoder->tot_insn_cnt += insn_cnt;
1148 decoder->timestamp_insn_cnt += insn_cnt;
1149 decoder->sample_insn_cnt += insn_cnt;
1150 decoder->period_insn_cnt += insn_cnt;
1152 intel_pt_sample_insn(decoder);
1154 decoder->state.type |= INTEL_PT_INSTRUCTION;
1155 decoder->ip += intel_pt_insn.length;
1158 static int intel_pt_walk_insn(struct intel_pt_decoder *decoder,
1164 if (!decoder->mtc_insn)
1165 decoder->mtc_insn = true;
1167 max_insn_cnt = intel_pt_next_sample(decoder);
1169 err = decoder->walk_insn(intel_pt_insn, &insn_cnt, &decoder->ip, ip,
1170 max_insn_cnt, decoder->data);
1172 decoder->tot_insn_cnt += insn_cnt;
1173 decoder->timestamp_insn_cnt += insn_cnt;
1174 decoder->sample_insn_cnt += insn_cnt;
1175 decoder->period_insn_cnt += insn_cnt;
1178 decoder->no_progress = 0;
1179 decoder->pkt_state = INTEL_PT_STATE_ERR2;
1181 decoder->ip);
1187 if (ip && decoder->ip == ip) {
1193 intel_pt_sample_insn(decoder);
1196 decoder->state.type = INTEL_PT_INSTRUCTION;
1197 decoder->state.from_ip = decoder->ip;
1198 decoder->state.to_ip = 0;
1199 decoder->ip += intel_pt_insn->length;
1208 err = intel_pt_push(&decoder->stack, decoder->ip +
1214 decoder->ret_addr = intel_pt_pop(&decoder->stack);
1218 int cnt = decoder->no_progress++;
1220 decoder->state.from_ip = decoder->ip;
1221 decoder->ip += intel_pt_insn->length +
1223 decoder->state.to_ip = decoder->ip;
1228 * decoder error results in the decoder erroneously setting the
1235 decoder->stuck_ip = decoder->state.to_ip;
1236 decoder->stuck_ip_prd = 1;
1237 decoder->stuck_ip_cnt = 1;
1238 } else if (cnt > decoder->max_loops ||
1239 decoder->state.to_ip == decoder->stuck_ip) {
1241 decoder->state.to_ip);
1242 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1245 } else if (!--decoder->stuck_ip_cnt) {
1246 decoder->stuck_ip_prd += 1;
1247 decoder->stuck_ip_cnt = decoder->stuck_ip_prd;
1248 decoder->stuck_ip = decoder->state.to_ip;
1254 decoder->no_progress = 0;
1256 decoder->state.insn_op = intel_pt_insn->op;
1257 decoder->state.insn_len = intel_pt_insn->length;
1258 memcpy(decoder->state.insn, intel_pt_insn->buf,
1261 if (decoder->tx_flags & INTEL_PT_IN_TX)
1262 decoder->state.flags |= INTEL_PT_IN_TX;
1267 static void intel_pt_mode_exec_status(struct intel_pt_decoder *decoder)
1269 bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
1271 decoder->exec_mode = decoder->packet.payload;
1272 decoder->iflag = iflag;
1273 decoder->next_iflag = iflag;
1274 decoder->state.from_iflag = iflag;
1275 decoder->state.to_iflag = iflag;
1278 static void intel_pt_mode_exec(struct intel_pt_decoder *decoder)
1280 bool iflag = decoder->packet.count & INTEL_PT_IFLAG;
1282 decoder->exec_mode = decoder->packet.payload;
1283 decoder->next_iflag = iflag;
1286 static void intel_pt_sample_iflag(struct intel_pt_decoder *decoder)
1288 decoder->state.type |= INTEL_PT_IFLAG_CHG;
1289 decoder->state.from_iflag = decoder->iflag;
1290 decoder->state.to_iflag = decoder->next_iflag;
1291 decoder->iflag = decoder->next_iflag;
1294 static void intel_pt_sample_iflag_chg(struct intel_pt_decoder *decoder)
1296 if (decoder->iflag != decoder->next_iflag)
1297 intel_pt_sample_iflag(decoder);
1300 static void intel_pt_clear_fup_event(struct intel_pt_decoder *decoder)
1302 decoder->set_fup_tx_flags = false;
1303 decoder->set_fup_ptw = false;
1304 decoder->set_fup_mwait = false;
1305 decoder->set_fup_pwre = false;
1306 decoder->set_fup_exstop = false;
1307 decoder->set_fup_bep = false;
1308 decoder->set_fup_cfe_ip = false;
1309 decoder->set_fup_cfe = false;
1310 decoder->evd_cnt = 0;
1311 decoder->set_fup_mode_exec = false;
1312 decoder->iflag = decoder->next_iflag;
1315 static bool intel_pt_fup_event(struct intel_pt_decoder *decoder, bool no_tip)
1317 enum intel_pt_sample_type type = decoder->state.type;
1321 decoder->state.type &= ~INTEL_PT_BRANCH;
1323 if (decoder->set_fup_cfe_ip || decoder->set_fup_cfe) {
1324 bool ip = decoder->set_fup_cfe_ip;
1326 decoder->set_fup_cfe_ip = false;
1327 decoder->set_fup_cfe = false;
1328 decoder->state.type |= INTEL_PT_EVT;
1329 if (!ip && decoder->pge)
1330 decoder->state.type |= INTEL_PT_BRANCH;
1331 decoder->state.cfe_type = decoder->fup_cfe_pkt.count;
1332 decoder->state.cfe_vector = decoder->fup_cfe_pkt.payload;
1333 decoder->state.evd_cnt = decoder->evd_cnt;
1334 decoder->state.evd = decoder->evd;
1335 decoder->evd_cnt = 0;
1336 if (ip || decoder->pge)
1337 decoder->state.flags |= INTEL_PT_FUP_IP;
1340 if (decoder->set_fup_mode_exec) {
1341 decoder->set_fup_mode_exec = false;
1342 intel_pt_sample_iflag(decoder);
1346 if (decoder->set_fup_tx_flags) {
1347 decoder->set_fup_tx_flags = false;
1348 decoder->tx_flags = decoder->fup_tx_flags;
1349 decoder->state.type |= INTEL_PT_TRANSACTION;
1350 if (decoder->fup_tx_flags & INTEL_PT_ABORT_TX)
1351 decoder->state.type |= INTEL_PT_BRANCH;
1352 decoder->state.flags = decoder->fup_tx_flags;
1355 if (decoder->set_fup_ptw) {
1356 decoder->set_fup_ptw = false;
1357 decoder->state.type |= INTEL_PT_PTW;
1358 decoder->state.flags |= INTEL_PT_FUP_IP;
1359 decoder->state.ptw_payload = decoder->fup_ptw_payload;
1362 if (decoder->set_fup_mwait) {
1363 decoder->set_fup_mwait = false;
1364 decoder->state.type |= INTEL_PT_MWAIT_OP;
1365 decoder->state.mwait_payload = decoder->fup_mwait_payload;
1368 if (decoder->set_fup_pwre) {
1369 decoder->set_fup_pwre = false;
1370 decoder->state.type |= INTEL_PT_PWR_ENTRY;
1371 decoder->state.pwre_payload = decoder->fup_pwre_payload;
1374 if (decoder->set_fup_exstop) {
1375 decoder->set_fup_exstop = false;
1376 decoder->state.type |= INTEL_PT_EX_STOP;
1377 decoder->state.flags |= INTEL_PT_FUP_IP;
1380 if (decoder->set_fup_bep) {
1381 decoder->set_fup_bep = false;
1382 decoder->state.type |= INTEL_PT_BLK_ITEMS;
1385 if (decoder->overflow) {
1386 decoder->overflow = false;
1387 if (!ret && !decoder->pge) {
1388 if (decoder->hop) {
1389 decoder->state.type = 0;
1390 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
1392 decoder->pge = true;
1393 decoder->state.type |= INTEL_PT_BRANCH | INTEL_PT_TRACE_BEGIN;
1394 decoder->state.from_ip = 0;
1395 decoder->state.to_ip = decoder->ip;
1400 decoder->state.from_ip = decoder->ip;
1401 decoder->state.to_ip = 0;
1403 intel_pt_sample_fup_insn(decoder);
1405 decoder->state.type = type;
1410 static inline bool intel_pt_fup_with_nlip(struct intel_pt_decoder *decoder,
1414 return decoder->flags & INTEL_PT_FUP_WITH_NLIP && !err &&
1416 ip == decoder->ip + intel_pt_insn->length;
1419 static int intel_pt_walk_fup(struct intel_pt_decoder *decoder)
1425 ip = decoder->last_ip;
1428 err = intel_pt_walk_insn(decoder, &intel_pt_insn, ip);
1432 intel_pt_fup_with_nlip(decoder, &intel_pt_insn, ip, err)) {
1433 bool no_tip = decoder->pkt_state != INTEL_PT_STATE_FUP;
1435 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1436 if (intel_pt_fup_event(decoder, no_tip) && no_tip)
1440 decoder->set_fup_tx_flags = false;
1446 decoder->ip);
1447 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1453 decoder->ip);
1454 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1458 intel_pt_bug(decoder);
1462 static int intel_pt_walk_tip(struct intel_pt_decoder *decoder)
1467 err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
1469 decoder->pgd_ip &&
1470 decoder->pkt_state == INTEL_PT_STATE_TIP_PGD &&
1471 (decoder->state.type & INTEL_PT_BRANCH) &&
1472 decoder->pgd_ip(decoder->state.to_ip, decoder->data)) {
1474 decoder->no_progress = 0;
1475 decoder->pge = false;
1476 decoder->continuous_period = false;
1477 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1478 decoder->state.type |= INTEL_PT_TRACE_END;
1479 intel_pt_update_nr(decoder);
1487 intel_pt_update_nr(decoder);
1488 intel_pt_sample_iflag_chg(decoder);
1491 if (decoder->pkt_state == INTEL_PT_STATE_TIP_PGD) {
1492 decoder->pge = false;
1493 decoder->continuous_period = false;
1494 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1495 decoder->state.from_ip = decoder->ip;
1496 if (decoder->packet.count == 0) {
1497 decoder->state.to_ip = 0;
1499 decoder->state.to_ip = decoder->last_ip;
1500 decoder->ip = decoder->last_ip;
1502 decoder->state.type |= INTEL_PT_TRACE_END;
1504 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1505 decoder->state.from_ip = decoder->ip;
1506 if (decoder->packet.count == 0) {
1507 decoder->state.to_ip = 0;
1509 decoder->state.to_ip = decoder->last_ip;
1510 decoder->ip = decoder->last_ip;
1517 uint64_t to_ip = decoder->ip + intel_pt_insn.length +
1520 if (decoder->pgd_ip &&
1521 decoder->pkt_state == INTEL_PT_STATE_TIP_PGD &&
1522 decoder->pgd_ip(to_ip, decoder->data)) {
1524 decoder->pge = false;
1525 decoder->continuous_period = false;
1526 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1527 decoder->ip = to_ip;
1528 decoder->state.from_ip = decoder->ip;
1529 decoder->state.to_ip = to_ip;
1530 decoder->state.type |= INTEL_PT_TRACE_END;
1534 decoder->ip);
1535 decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
1539 return intel_pt_bug(decoder);
1605 static int intel_pt_emulated_ptwrite(struct intel_pt_decoder *decoder)
1607 int n = 64 - decoder->tnt.count;
1610 .payload = decoder->tnt.payload >> n,
1613 decoder->emulated_ptwrite = false;
1616 intel_pt_pkt_lookahead(decoder, intel_pt_eptw_lookahead_cb, &data);
1620 decoder->state.type = INTEL_PT_PTW;
1621 decoder->state.from_ip = decoder->ip;
1622 decoder->state.to_ip = 0;
1623 decoder->state.ptw_payload = data.payload;
1627 static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder)
1633 if (decoder->emulated_ptwrite)
1634 return intel_pt_emulated_ptwrite(decoder);
1635 err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
1637 decoder->emulated_ptwrite = intel_pt_insn.emulated_ptwrite;
1641 decoder->emulated_ptwrite = false;
1646 if (!decoder->return_compression) {
1648 decoder->ip);
1649 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1652 if (!decoder->ret_addr) {
1654 decoder->ip);
1655 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1658 if (!(decoder->tnt.payload & BIT63)) {
1660 decoder->ip);
1661 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1664 decoder->tnt.count -= 1;
1665 if (decoder->tnt.count)
1666 decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
1668 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1669 decoder->tnt.payload <<= 1;
1670 decoder->state.from_ip = decoder->ip;
1671 decoder->ip = decoder->ret_addr;
1672 decoder->state.to_ip = decoder->ip;
1678 err = intel_pt_get_next_packet(decoder);
1681 if (decoder->packet.type != INTEL_PT_TIP ||
1682 decoder->packet.count == 0) {
1684 decoder->ip);
1685 decoder->pkt_state = INTEL_PT_STATE_ERR3;
1686 decoder->pkt_step = 0;
1689 intel_pt_set_last_ip(decoder);
1690 decoder->state.from_ip = decoder->ip;
1691 decoder->state.to_ip = decoder->last_ip;
1692 decoder->ip = decoder->last_ip;
1693 intel_pt_update_nr(decoder);
1694 intel_pt_sample_iflag_chg(decoder);
1699 decoder->tnt.count -= 1;
1700 if (decoder->tnt.count)
1701 decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
1703 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1704 if (decoder->tnt.payload & BIT63) {
1705 decoder->tnt.payload <<= 1;
1706 decoder->state.from_ip = decoder->ip;
1707 decoder->ip += intel_pt_insn.length +
1709 decoder->state.to_ip = decoder->ip;
1713 if (decoder->state.type & INTEL_PT_INSTRUCTION) {
1714 decoder->tnt.payload <<= 1;
1715 decoder->state.type = INTEL_PT_INSTRUCTION;
1716 decoder->state.from_ip = decoder->ip;
1717 decoder->state.to_ip = 0;
1718 decoder->ip += intel_pt_insn.length;
1721 decoder->sample_cyc = false;
1722 decoder->ip += intel_pt_insn.length;
1723 if (!decoder->tnt.count) {
1724 intel_pt_update_sample_time(decoder);
1727 decoder->tnt.payload <<= 1;
1731 return intel_pt_bug(decoder);
1735 static int intel_pt_mode_tsx(struct intel_pt_decoder *decoder, bool *no_tip)
1740 fup_tx_flags = decoder->packet.payload &
1742 err = intel_pt_get_next_packet(decoder);
1745 if (decoder->packet.type == INTEL_PT_FUP) {
1746 decoder->fup_tx_flags = fup_tx_flags;
1747 decoder->set_fup_tx_flags = true;
1748 if (!(decoder->fup_tx_flags & INTEL_PT_ABORT_TX))
1752 decoder->pos);
1753 intel_pt_update_in_tx(decoder);
1758 static int intel_pt_evd(struct intel_pt_decoder *decoder)
1760 if (decoder->evd_cnt >= INTEL_PT_MAX_EVDS) {
1761 intel_pt_log_at("ERROR: Too many EVD packets", decoder->pos);
1764 decoder->evd[decoder->evd_cnt++] = (struct intel_pt_evd){
1765 .type = decoder->packet.count,
1766 .payload = decoder->packet.payload,
1786 /* For use only when decoder->vm_time_correlation is true */
1787 static bool intel_pt_time_in_range(struct intel_pt_decoder *decoder,
1790 uint64_t max_timestamp = decoder->buf_timestamp;
1793 max_timestamp = decoder->last_reliable_timestamp +
1796 return timestamp >= decoder->last_reliable_timestamp &&
1797 timestamp < decoder->buf_timestamp;
1800 static void intel_pt_calc_tsc_timestamp(struct intel_pt_decoder *decoder)
1805 decoder->have_tma = false;
1807 if (decoder->ref_timestamp) {
1808 timestamp = intel_pt_8b_tsc(decoder->packet.payload,
1809 decoder->ref_timestamp);
1810 decoder->tsc_timestamp = timestamp;
1811 decoder->timestamp = timestamp;
1812 decoder->ref_timestamp = 0;
1813 decoder->timestamp_insn_cnt = 0;
1814 } else if (decoder->timestamp) {
1815 timestamp = decoder->packet.payload |
1816 (decoder->timestamp & (0xffULL << 56));
1817 decoder->tsc_timestamp = timestamp;
1818 if (timestamp < decoder->timestamp &&
1819 decoder->timestamp - timestamp < decoder->tsc_slip) {
1822 timestamp = decoder->timestamp;
1824 if (timestamp < decoder->timestamp) {
1825 if (!decoder->buf_timestamp ||
1826 (timestamp + (1ULL << 56) < decoder->buf_timestamp)) {
1829 decoder->tsc_timestamp = timestamp;
1832 timestamp = decoder->timestamp;
1836 if (decoder->vm_time_correlation &&
1837 (bad || !intel_pt_time_in_range(decoder, timestamp)) &&
1838 intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_ERANGE))
1840 decoder->timestamp = timestamp;
1841 decoder->timestamp_insn_cnt = 0;
1844 if (decoder->last_packet_type == INTEL_PT_CYC) {
1845 decoder->cyc_ref_timestamp = decoder->timestamp;
1846 decoder->cycle_cnt = 0;
1847 decoder->have_calc_cyc_to_tsc = false;
1848 intel_pt_calc_cyc_to_tsc(decoder, false);
1851 intel_pt_log_to("Setting timestamp", decoder->timestamp);
1854 static int intel_pt_overflow(struct intel_pt_decoder *decoder)
1857 intel_pt_clear_tx_flags(decoder);
1858 intel_pt_set_nr(decoder);
1859 decoder->timestamp_insn_cnt = 0;
1860 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
1861 decoder->state.from_ip = decoder->ip;
1862 decoder->ip = 0;
1863 decoder->pge = false;
1864 intel_pt_clear_fup_event(decoder);
1865 decoder->overflow = true;
1869 static inline void intel_pt_mtc_cyc_cnt_pge(struct intel_pt_decoder *decoder)
1871 if (decoder->have_cyc)
1874 decoder->cyc_cnt_timestamp = decoder->timestamp;
1875 decoder->base_cyc_cnt = decoder->tot_cyc_cnt;
1878 static inline void intel_pt_mtc_cyc_cnt_cbr(struct intel_pt_decoder *decoder)
1880 decoder->tsc_to_cyc = decoder->cbr / decoder->max_non_turbo_ratio_fp;
1882 if (decoder->pge)
1883 intel_pt_mtc_cyc_cnt_pge(decoder);
1886 static inline void intel_pt_mtc_cyc_cnt_upd(struct intel_pt_decoder *decoder)
1890 if (decoder->have_cyc)
1893 decoder->sample_cyc = true;
1895 if (!decoder->pge || decoder->timestamp <= decoder->cyc_cnt_timestamp)
1898 tsc_delta = decoder->timestamp - decoder->cyc_cnt_timestamp;
1899 tot_cyc_cnt = tsc_delta * decoder->tsc_to_cyc + decoder->base_cyc_cnt;
1901 if (tot_cyc_cnt > decoder->tot_cyc_cnt)
1902 decoder->tot_cyc_cnt = tot_cyc_cnt;
1905 static void intel_pt_calc_tma(struct intel_pt_decoder *decoder)
1907 uint32_t ctc = decoder->packet.payload;
1908 uint32_t fc = decoder->packet.count;
1909 uint32_t ctc_rem = ctc & decoder->ctc_rem_mask;
1911 if (!decoder->tsc_ctc_ratio_d)
1914 if (decoder->pge && !decoder->in_psb)
1915 intel_pt_mtc_cyc_cnt_pge(decoder);
1917 intel_pt_mtc_cyc_cnt_upd(decoder);
1919 decoder->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
1920 decoder->last_ctc = ctc - ctc_rem;
1921 decoder->ctc_timestamp = decoder->tsc_timestamp - fc;
1922 if (decoder->tsc_ctc_mult) {
1923 decoder->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
1925 decoder->ctc_timestamp -= multdiv(ctc_rem,
1926 decoder->tsc_ctc_ratio_n,
1927 decoder->tsc_ctc_ratio_d);
1929 decoder->ctc_delta = 0;
1930 decoder->have_tma = true;
1931 decoder->fixup_last_mtc = true;
1933 decoder->ctc_timestamp, decoder->last_mtc, ctc_rem);
1936 static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
1941 if (!decoder->have_tma)
1944 mtc = decoder->packet.payload;
1946 if (decoder->mtc_shift > 8 && decoder->fixup_last_mtc) {
1947 decoder->fixup_last_mtc = false;
1948 intel_pt_fixup_last_mtc(mtc, decoder->mtc_shift,
1949 &decoder->last_mtc);
1952 if (mtc > decoder->last_mtc)
1953 mtc_delta = mtc - decoder->last_mtc;
1955 mtc_delta = mtc + 256 - decoder->last_mtc;
1957 decoder->ctc_delta += mtc_delta << decoder->mtc_shift;
1959 if (decoder->tsc_ctc_mult) {
1960 timestamp = decoder->ctc_timestamp +
1961 decoder->ctc_delta * decoder->tsc_ctc_mult;
1963 timestamp = decoder->ctc_timestamp +
1964 multdiv(decoder->ctc_delta,
1965 decoder->tsc_ctc_ratio_n,
1966 decoder->tsc_ctc_ratio_d);
1969 if (timestamp < decoder->timestamp)
1971 timestamp, decoder->timestamp);
1973 decoder->timestamp = timestamp;
1975 intel_pt_mtc_cyc_cnt_upd(decoder);
1977 decoder->timestamp_insn_cnt = 0;
1978 decoder->last_mtc = mtc;
1980 if (decoder->last_packet_type == INTEL_PT_CYC) {
1981 decoder->cyc_ref_timestamp = decoder->timestamp;
1982 decoder->cycle_cnt = 0;
1983 decoder->have_calc_cyc_to_tsc = false;
1984 intel_pt_calc_cyc_to_tsc(decoder, true);
1987 intel_pt_log_to("Setting timestamp", decoder->timestamp);
1990 static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
1992 unsigned int cbr = decoder->packet.payload & 0xff;
1994 decoder->cbr_payload = decoder->packet.payload;
1996 if (decoder->cbr == cbr)
1999 decoder->cbr = cbr;
2000 decoder->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
2001 decoder->cyc_ref_timestamp = decoder->timestamp;
2002 decoder->cycle_cnt = 0;
2004 intel_pt_mtc_cyc_cnt_cbr(decoder);
2007 static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
2009 uint64_t timestamp = decoder->cyc_ref_timestamp;
2011 decoder->have_cyc = true;
2013 decoder->cycle_cnt += decoder->packet.payload;
2014 if (decoder->pge)
2015 decoder->tot_cyc_cnt += decoder->packet.payload;
2016 decoder->sample_cyc = true;
2018 if (!decoder->cyc_ref_timestamp)
2021 if (decoder->have_calc_cyc_to_tsc)
2022 timestamp += decoder->cycle_cnt * decoder->calc_cyc_to_tsc;
2023 else if (decoder->cbr)
2024 timestamp += decoder->cycle_cnt * decoder->cbr_cyc_to_tsc;
2028 if (timestamp < decoder->timestamp)
2030 timestamp, decoder->timestamp);
2032 decoder->timestamp = timestamp;
2034 decoder->timestamp_insn_cnt = 0;
2036 intel_pt_log_to("Setting timestamp", decoder->timestamp);
2039 static void intel_pt_bbp(struct intel_pt_decoder *decoder)
2041 if (decoder->prev_pkt_ctx == INTEL_PT_NO_CTX) {
2042 memset(decoder->state.items.mask, 0, sizeof(decoder->state.items.mask));
2043 decoder->state.items.is_32_bit = false;
2045 decoder->blk_type = decoder->packet.payload;
2046 decoder->blk_type_pos = intel_pt_blk_type_pos(decoder->blk_type);
2047 if (decoder->blk_type == INTEL_PT_GP_REGS)
2048 decoder->state.items.is_32_bit = decoder->packet.count;
2049 if (decoder->blk_type_pos < 0) {
2051 decoder->blk_type);
2052 } else if (decoder->state.items.mask[decoder->blk_type_pos]) {
2054 decoder->blk_type);
2058 static void intel_pt_bip(struct intel_pt_decoder *decoder)
2060 uint32_t id = decoder->packet.count;
2062 int pos = decoder->blk_type_pos;
2066 id, decoder->blk_type);
2070 if (decoder->state.items.mask[pos] & bit) {
2072 id, decoder->blk_type);
2075 decoder->state.items.mask[pos] |= bit;
2076 decoder->state.items.val[pos][id] = decoder->packet.payload;
2080 static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
2084 decoder->in_psb = true;
2087 err = intel_pt_get_next_packet(decoder);
2091 switch (decoder->packet.type) {
2117 decoder->have_tma = false;
2123 err = intel_pt_overflow(decoder);
2127 intel_pt_calc_tsc_timestamp(decoder);
2131 intel_pt_calc_tma(decoder);
2135 intel_pt_calc_cbr(decoder);
2139 intel_pt_mode_exec_status(decoder);
2143 intel_pt_set_pip(decoder);
2147 decoder->pge = true;
2148 if (decoder->packet.count) {
2149 intel_pt_set_last_ip(decoder);
2150 decoder->psb_ip = decoder->last_ip;
2155 intel_pt_update_in_tx(decoder);
2159 intel_pt_calc_mtc_timestamp(decoder);
2160 if (decoder->period_type == INTEL_PT_PERIOD_MTC)
2161 decoder->state.type |= INTEL_PT_INSTRUCTION;
2165 intel_pt_calc_cyc_timestamp(decoder);
2176 decoder->in_psb = false;
2181 static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
2185 if (decoder->tx_flags & INTEL_PT_ABORT_TX) {
2186 decoder->tx_flags = 0;
2187 decoder->state.flags &= ~INTEL_PT_IN_TX;
2188 decoder->state.flags |= INTEL_PT_ABORT_TX;
2190 decoder->state.flags |= INTEL_PT_ASYNC;
2194 err = intel_pt_get_next_packet(decoder);
2198 switch (decoder->packet.type) {
2223 decoder->pkt_state = INTEL_PT_STATE_ERR3;
2224 decoder->pkt_step = 0;
2228 intel_pt_calc_cbr(decoder);
2232 return intel_pt_overflow(decoder);
2235 decoder->state.from_ip = decoder->ip;
2236 if (decoder->packet.count == 0) {
2237 decoder->state.to_ip = 0;
2239 intel_pt_set_ip(decoder);
2240 decoder->state.to_ip = decoder->ip;
2242 decoder->pge = false;
2243 decoder->continuous_period = false;
2244 decoder->state.type |= INTEL_PT_TRACE_END;
2245 intel_pt_update_nr(decoder);
2249 decoder->pge = true;
2251 decoder->ip);
2252 decoder->state.from_ip = 0;
2253 if (decoder->packet.count == 0) {
2254 decoder->state.to_ip = 0;
2256 intel_pt_set_ip(decoder);
2257 decoder->state.to_ip = decoder->ip;
2259 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
2260 intel_pt_mtc_cyc_cnt_pge(decoder);
2261 intel_pt_set_nr(decoder);
2265 decoder->state.from_ip = decoder->ip;
2266 if (decoder->packet.count == 0) {
2267 decoder->state.to_ip = 0;
2269 intel_pt_set_ip(decoder);
2270 decoder->state.to_ip = decoder->ip;
2272 intel_pt_update_nr(decoder);
2273 intel_pt_sample_iflag_chg(decoder);
2277 intel_pt_update_pip(decoder);
2281 intel_pt_calc_mtc_timestamp(decoder);
2282 if (decoder->period_type == INTEL_PT_PERIOD_MTC)
2283 decoder->state.type |= INTEL_PT_INSTRUCTION;
2287 intel_pt_calc_cyc_timestamp(decoder);
2291 intel_pt_mode_exec(decoder);
2300 return intel_pt_bug(decoder);
2305 static int intel_pt_resample(struct intel_pt_decoder *decoder)
2307 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
2308 decoder->state.type = INTEL_PT_INSTRUCTION;
2309 decoder->state.from_ip = decoder->ip;
2310 decoder->state.to_ip = 0;
2410 static bool intel_pt_ovf_fup_lookahead(struct intel_pt_decoder *decoder)
2417 intel_pt_pkt_lookahead(decoder, intel_pt_ovf_fup_lookahead_cb, &data);
2437 static uint64_t intel_pt_ctc_to_tsc(struct intel_pt_decoder *decoder, uint64_t ctc)
2439 if (decoder->tsc_ctc_mult)
2440 return ctc * decoder->tsc_ctc_mult;
2442 return multdiv(ctc, decoder->tsc_ctc_ratio_n, decoder->tsc_ctc_ratio_d);
2445 static uint64_t intel_pt_calc_expected_tsc(struct intel_pt_decoder *decoder,
2468 expected_tsc = last_ctc_timestamp + intel_pt_ctc_to_tsc(decoder, new_ctc_delta) + fc;
2479 intel_pt_log_x64(intel_pt_ctc_to_tsc(decoder, new_ctc_delta));
2486 static uint64_t intel_pt_expected_tsc(struct intel_pt_decoder *decoder,
2492 return intel_pt_calc_expected_tsc(decoder, ctc, fc,
2493 decoder->ctc_timestamp,
2497 static void intel_pt_translate_vm_tsc(struct intel_pt_decoder *decoder,
2500 uint64_t payload = decoder->packet.payload;
2503 decoder->packet.payload -= vmcs_info->tsc_offset;
2505 decoder->packet.payload &= SEVEN_BYTES;
2511 if (!decoder->vm_tm_corr_dry_run)
2512 memcpy((void *)decoder->buf + 1, &decoder->packet.payload, 7);
2516 payload, decoder->packet.payload, vmcs_info->vmcs,
2520 static void intel_pt_translate_vm_tsc_offset(struct intel_pt_decoder *decoder,
2528 intel_pt_translate_vm_tsc(decoder, &vmcs_info);
2547 static void intel_pt_vm_tm_corr_psb(struct intel_pt_decoder *decoder,
2551 data->ctc_delta = decoder->ctc_delta;
2552 data->last_ctc = decoder->last_ctc;
2553 intel_pt_pkt_lookahead(decoder, intel_pt_vm_psb_lookahead_cb, data);
2556 decoder->in_psb = data->psbend;
2559 static void intel_pt_vm_tm_corr_first_tsc(struct intel_pt_decoder *decoder,
2564 if (!decoder->in_psb) {
2572 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2573 decoder->vm_tm_corr_reliable = true;
2578 decoder->vm_tm_corr_reliable = true;
2581 decoder->vm_tm_corr_reliable = false;
2582 if (intel_pt_time_in_range(decoder, host_tsc)) {
2587 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2594 static void intel_pt_vm_tm_corr_tsc(struct intel_pt_decoder *decoder,
2609 if (!decoder->in_psb) {
2611 data->ctc_delta = decoder->ctc_delta;
2612 data->last_ctc = decoder->last_ctc;
2614 intel_pt_pkt_lookahead(decoder, intel_pt_tma_lookahead_cb, data);
2615 if (decoder->pge) {
2617 data->pip_packet.payload = decoder->pip_payload;
2627 vmcs = data->vmcs ? data->vmcs_packet.payload : decoder->vmcs;
2631 vmcs_info = decoder->findnew_vmcs_info(decoder->data, vmcs);
2633 ref_timestamp = decoder->timestamp ? decoder->timestamp : decoder->buf_timestamp;
2634 host_tsc = intel_pt_8b_tsc(decoder->packet.payload, ref_timestamp);
2636 if (!decoder->ctc_timestamp) {
2637 intel_pt_vm_tm_corr_first_tsc(decoder, data, vmcs_info, host_tsc);
2641 expected_tsc = intel_pt_expected_tsc(decoder, data);
2651 intel_pt_translate_vm_tsc_offset(decoder, tsc_offset);
2652 decoder->vm_tm_corr_reliable = false;
2656 decoder->last_reliable_timestamp = host_tsc;
2657 decoder->vm_tm_corr_reliable = true;
2662 if (decoder->in_psb) {
2685 if (host_tsc >= expected_tsc && intel_pt_time_in_range(decoder, host_tsc)) {
2687 decoder->vm_tm_corr_reliable = false;
2698 } else if (decoder->in_psb && data->pip && decoder->vm_tm_corr_reliable &&
2699 decoder->vm_tm_corr_continuous && decoder->vm_tm_corr_same_buf) {
2703 } else if (decoder->in_psb && data->pip && decoder->vm_tm_corr_same_buf) {
2728 intel_pt_translate_vm_tsc(decoder, vmcs_info);
2738 if (intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_UNK_VMCS))
2741 intel_pt_translate_vm_tsc_offset(decoder, tsc_offset);
2744 decoder->vm_tm_corr_reliable = reliable;
2747 static void intel_pt_vm_tm_corr_pebs_tsc(struct intel_pt_decoder *decoder)
2749 uint64_t host_tsc = decoder->packet.payload;
2750 uint64_t guest_tsc = decoder->packet.payload;
2754 vmcs = decoder->vmcs;
2758 vmcs_info = decoder->findnew_vmcs_info(decoder->data, vmcs);
2760 if (decoder->pge) {
2761 if (in_vm(decoder->pip_payload)) { /* Guest */
2770 if (intel_pt_time_in_range(decoder, host_tsc)) {
2779 host_tsc = intel_pt_8b_tsc(host_tsc, decoder->timestamp);
2784 if (!intel_pt_time_in_range(decoder, host_tsc) &&
2785 intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_ERANGE))
2788 if (intel_pt_print_once(decoder, INTEL_PT_PRT_ONCE_UNK_VMCS))
2790 host_tsc = decoder->timestamp;
2793 decoder->packet.payload = host_tsc;
2795 if (!decoder->vm_tm_corr_dry_run)
2796 memcpy((void *)decoder->buf + 1, &host_tsc, 8);
2799 static int intel_pt_vm_time_correlation(struct intel_pt_decoder *decoder)
2805 if (decoder->in_psb)
2806 intel_pt_vm_tm_corr_psb(decoder, &data);
2809 err = intel_pt_get_next_packet(decoder);
2815 switch (decoder->packet.type) {
2817 decoder->pge = false;
2818 decoder->vm_tm_corr_continuous = false;
2824 decoder->pge = true;
2828 decoder->in_psb = false;
2829 pge = decoder->pge;
2830 decoder->pge = intel_pt_ovf_fup_lookahead(decoder);
2831 if (pge != decoder->pge)
2833 if (!decoder->pge)
2834 decoder->vm_tm_corr_continuous = false;
2838 if (decoder->in_psb)
2839 decoder->pge = true;
2843 decoder->pge = false;
2844 decoder->vm_tm_corr_continuous = false;
2845 decoder->have_tma = false;
2849 intel_pt_vm_tm_corr_psb(decoder, &data);
2853 decoder->pip_payload = decoder->packet.payload;
2857 intel_pt_calc_mtc_timestamp(decoder);
2861 intel_pt_vm_tm_corr_tsc(decoder, &data);
2862 intel_pt_calc_tsc_timestamp(decoder);
2863 decoder->vm_tm_corr_same_buf = true;
2864 decoder->vm_tm_corr_continuous = decoder->pge;
2868 intel_pt_calc_tma(decoder);
2872 intel_pt_calc_cyc_timestamp(decoder);
2876 intel_pt_calc_cbr(decoder);
2880 decoder->in_psb = false;
2885 if (decoder->packet.payload != NO_VMCS)
2886 decoder->vmcs = decoder->packet.payload;
2890 decoder->blk_type = decoder->packet.payload;
2894 if (decoder->blk_type == INTEL_PT_PEBS_BASIC &&
2895 decoder->packet.count == 2)
2896 intel_pt_vm_tm_corr_pebs_tsc(decoder);
2901 decoder->blk_type = 0;
2932 static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder);
2935 static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, int *err)
2940 if (decoder->leap && !decoder->in_psb && decoder->packet.type != INTEL_PT_PSB) {
2941 *err = intel_pt_scan_for_psb(decoder);
2946 switch (decoder->packet.type) {
2951 decoder->pge = false;
2952 if (!decoder->packet.count) {
2953 intel_pt_set_nr(decoder);
2956 intel_pt_set_ip(decoder);
2957 decoder->state.type |= INTEL_PT_TRACE_END;
2958 decoder->state.from_ip = 0;
2959 decoder->state.to_ip = decoder->ip;
2960 intel_pt_update_nr(decoder);
2964 if (!decoder->packet.count) {
2965 intel_pt_set_nr(decoder);
2968 intel_pt_set_ip(decoder);
2969 decoder->state.type = INTEL_PT_INSTRUCTION;
2970 decoder->state.from_ip = decoder->ip;
2971 decoder->state.to_ip = 0;
2972 intel_pt_update_nr(decoder);
2973 intel_pt_sample_iflag_chg(decoder);
2977 if (!decoder->packet.count)
2979 intel_pt_set_ip(decoder);
2980 if (decoder->set_fup_mwait || decoder->set_fup_pwre)
2982 if (!decoder->branch_enable || !decoder->pge)
2985 decoder->state.type = INTEL_PT_INSTRUCTION;
2986 decoder->state.from_ip = decoder->ip;
2987 decoder->state.to_ip = 0;
2988 intel_pt_fup_event(decoder, *no_tip);
2991 intel_pt_fup_event(decoder, *no_tip);
2992 decoder->state.type |= INTEL_PT_INSTRUCTION | INTEL_PT_BRANCH;
2993 *err = intel_pt_walk_fup_tip(decoder);
2994 if (!*err && decoder->state.to_ip)
2995 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
2999 decoder->state.psb_offset = decoder->pos;
3000 decoder->psb_ip = 0;
3001 decoder->last_ip = 0;
3002 decoder->have_last_ip = true;
3003 *err = intel_pt_walk_psbend(decoder);
3008 decoder->state.type = INTEL_PT_PSB_EVT;
3009 if (decoder->psb_ip) {
3010 decoder->state.type |= INTEL_PT_INSTRUCTION;
3011 decoder->ip = decoder->psb_ip;
3013 decoder->state.from_ip = decoder->psb_ip;
3014 decoder->state.to_ip = 0;
3140 static int intel_pt_psb(struct intel_pt_decoder *decoder)
3144 decoder->last_ip = 0;
3145 decoder->psb_ip = 0;
3146 decoder->have_last_ip = true;
3147 intel_pt_clear_stack(&decoder->stack);
3148 err = intel_pt_walk_psbend(decoder);
3151 decoder->state.type = INTEL_PT_PSB_EVT;
3152 decoder->state.from_ip = decoder->psb_ip;
3153 decoder->state.to_ip = 0;
3157 static int intel_pt_fup_in_psb(struct intel_pt_decoder *decoder)
3161 if (decoder->ip != decoder->last_ip) {
3162 err = intel_pt_walk_fup(decoder);
3167 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3168 err = intel_pt_psb(decoder);
3170 decoder->pkt_state = INTEL_PT_STATE_ERR3;
3177 static bool intel_pt_psb_with_fup(struct intel_pt_decoder *decoder, int *err)
3181 if (!decoder->branch_enable)
3184 intel_pt_pkt_lookahead(decoder, intel_pt_psb_lookahead_cb, &data);
3188 decoder->packet = data.fup_packet;
3189 intel_pt_set_last_ip(decoder);
3190 decoder->pkt_state = INTEL_PT_STATE_FUP_IN_PSB;
3192 *err = intel_pt_fup_in_psb(decoder);
3197 static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
3204 err = intel_pt_get_next_packet(decoder);
3209 if (decoder->cyc_threshold) {
3210 if (decoder->sample_cyc && last_packet_type != INTEL_PT_CYC)
3211 decoder->sample_cyc = false;
3212 last_packet_type = decoder->packet.type;
3215 if (decoder->hop) {
3216 switch (intel_pt_hop_trace(decoder, &no_tip, &err)) {
3228 switch (decoder->packet.type) {
3230 if (!decoder->packet.count)
3232 decoder->tnt = decoder->packet;
3233 decoder->pkt_state = INTEL_PT_STATE_TNT;
3234 err = intel_pt_walk_tnt(decoder);
3240 if (decoder->packet.count != 0)
3241 intel_pt_set_last_ip(decoder);
3242 decoder->pkt_state = INTEL_PT_STATE_TIP_PGD;
3243 return intel_pt_walk_tip(decoder);
3246 decoder->pge = true;
3247 decoder->overflow = false;
3248 intel_pt_mtc_cyc_cnt_pge(decoder);
3249 intel_pt_set_nr(decoder);
3250 if (decoder->packet.count == 0) {
3252 decoder->pos);
3255 intel_pt_sample_iflag_chg(decoder);
3256 intel_pt_set_ip(decoder);
3257 decoder->state.from_ip = 0;
3258 decoder->state.to_ip = decoder->ip;
3259 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
3264 if (decoder->hop)
3265 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3270 return intel_pt_overflow(decoder);
3273 if (decoder->packet.count != 0)
3274 intel_pt_set_last_ip(decoder);
3275 decoder->pkt_state = INTEL_PT_STATE_TIP;
3276 return intel_pt_walk_tip(decoder);
3279 if (decoder->packet.count == 0) {
3281 decoder->pos);
3285 intel_pt_set_last_ip(decoder);
3286 if (!decoder->branch_enable || !decoder->pge) {
3287 decoder->ip = decoder->last_ip;
3288 if (intel_pt_fup_event(decoder, no_tip))
3293 if (decoder->set_fup_mwait)
3296 decoder->pkt_state = INTEL_PT_STATE_FUP_NO_TIP;
3298 decoder->pkt_state = INTEL_PT_STATE_FUP;
3299 err = intel_pt_walk_fup(decoder);
3306 return intel_pt_walk_fup_tip(decoder);
3309 decoder->pge = false;
3310 decoder->continuous_period = false;
3311 intel_pt_clear_tx_flags(decoder);
3312 decoder->have_tma = false;
3316 decoder->state.psb_offset = decoder->pos;
3317 decoder->psb_ip = 0;
3318 if (intel_pt_psb_with_fup(decoder, &err))
3320 err = intel_pt_psb(decoder);
3326 intel_pt_update_pip(decoder);
3330 intel_pt_calc_mtc_timestamp(decoder);
3331 if (decoder->period_type != INTEL_PT_PERIOD_MTC)
3337 if (!decoder->mtc_insn)
3339 decoder->mtc_insn = false;
3341 if (!decoder->timestamp)
3343 decoder->state.type = INTEL_PT_INSTRUCTION;
3344 decoder->state.from_ip = decoder->ip;
3345 decoder->state.to_ip = 0;
3346 decoder->mtc_insn = false;
3350 intel_pt_calc_tsc_timestamp(decoder);
3354 intel_pt_calc_tma(decoder);
3358 intel_pt_calc_cyc_timestamp(decoder);
3362 intel_pt_calc_cbr(decoder);
3363 if (decoder->cbr != decoder->cbr_seen) {
3364 decoder->state.type = 0;
3370 intel_pt_mode_exec(decoder);
3371 err = intel_pt_get_next_packet(decoder);
3374 if (decoder->packet.type == INTEL_PT_FUP) {
3375 decoder->set_fup_mode_exec = true;
3382 if (!decoder->pge || decoder->in_psb) {
3383 intel_pt_update_in_tx(decoder);
3386 err = intel_pt_mode_tsx(decoder, &no_tip);
3392 return intel_pt_bug(decoder);
3401 decoder->fup_ptw_payload = decoder->packet.payload;
3402 err = intel_pt_get_next_packet(decoder);
3405 if (decoder->packet.type == INTEL_PT_FUP) {
3406 decoder->set_fup_ptw = true;
3410 decoder->pos);
3415 decoder->state.type = INTEL_PT_PTW;
3416 decoder->state.from_ip = decoder->ip;
3417 decoder->state.to_ip = 0;
3418 decoder->state.ptw_payload = decoder->packet.payload;
3422 decoder->fup_mwait_payload = decoder->packet.payload;
3423 decoder->set_fup_mwait = true;
3427 if (decoder->set_fup_mwait) {
3428 decoder->fup_pwre_payload =
3429 decoder->packet.payload;
3430 decoder->set_fup_pwre = true;
3433 decoder->state.type = INTEL_PT_PWR_ENTRY;
3434 decoder->state.from_ip = decoder->ip;
3435 decoder->state.to_ip = 0;
3436 decoder->state.pwrx_payload = decoder->packet.payload;
3440 err = intel_pt_get_next_packet(decoder);
3443 if (decoder->packet.type == INTEL_PT_FUP) {
3444 decoder->set_fup_exstop = true;
3448 decoder->pos);
3453 decoder->state.type = INTEL_PT_EX_STOP;
3454 decoder->state.from_ip = decoder->ip;
3455 decoder->state.to_ip = 0;
3459 decoder->state.type = INTEL_PT_PWR_EXIT;
3460 decoder->state.from_ip = decoder->ip;
3461 decoder->state.to_ip = 0;
3462 decoder->state.pwrx_payload = decoder->packet.payload;
3466 intel_pt_bbp(decoder);
3470 intel_pt_bip(decoder);
3474 decoder->state.type = INTEL_PT_BLK_ITEMS;
3475 decoder->state.from_ip = decoder->ip;
3476 decoder->state.to_ip = 0;
3480 err = intel_pt_get_next_packet(decoder);
3483 if (decoder->packet.type == INTEL_PT_FUP) {
3484 decoder->set_fup_bep = true;
3488 decoder->pos);
3493 decoder->fup_cfe_pkt = decoder->packet;
3494 decoder->set_fup_cfe = true;
3495 if (!decoder->pge) {
3496 intel_pt_fup_event(decoder, true);
3502 decoder->fup_cfe_pkt = decoder->packet;
3503 err = intel_pt_get_next_packet(decoder);
3506 if (decoder->packet.type == INTEL_PT_FUP) {
3507 decoder->set_fup_cfe_ip = true;
3511 decoder->pos);
3516 err = intel_pt_evd(decoder);
3522 return intel_pt_bug(decoder);
3527 static inline bool intel_pt_have_ip(struct intel_pt_decoder *decoder)
3529 return decoder->packet.count &&
3530 (decoder->have_last_ip || decoder->packet.count == 3 ||
3531 decoder->packet.count == 6);
3535 static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
3539 decoder->in_psb = true;
3542 err = intel_pt_get_next_packet(decoder);
3546 switch (decoder->packet.type) {
3548 decoder->continuous_period = false;
3571 decoder->pge = true;
3572 if (intel_pt_have_ip(decoder)) {
3573 uint64_t current_ip = decoder->ip;
3575 intel_pt_set_ip(decoder);
3576 decoder->psb_ip = decoder->ip;
3579 decoder->ip);
3584 intel_pt_calc_mtc_timestamp(decoder);
3588 intel_pt_calc_tsc_timestamp(decoder);
3592 intel_pt_calc_tma(decoder);
3596 intel_pt_calc_cyc_timestamp(decoder);
3600 intel_pt_calc_cbr(decoder);
3604 intel_pt_set_pip(decoder);
3608 intel_pt_mode_exec_status(decoder);
3612 intel_pt_update_in_tx(decoder);
3616 decoder->pge = false;
3617 decoder->continuous_period = false;
3618 intel_pt_clear_tx_flags(decoder);
3622 decoder->have_tma = false;
3624 if (decoder->ip)
3625 decoder->pkt_state = INTEL_PT_STATE_ERR4;
3627 decoder->pkt_state = INTEL_PT_STATE_ERR3;
3632 err = intel_pt_bug(decoder);
3636 err = intel_pt_overflow(decoder);
3652 decoder->in_psb = false;
3657 static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
3662 err = intel_pt_get_next_packet(decoder);
3666 switch (decoder->packet.type) {
3668 decoder->continuous_period = false;
3669 decoder->pge = false;
3670 if (intel_pt_have_ip(decoder))
3671 intel_pt_set_ip(decoder);
3672 if (!decoder->ip)
3674 decoder->state.type |= INTEL_PT_TRACE_END;
3678 decoder->pge = true;
3679 intel_pt_mtc_cyc_cnt_pge(decoder);
3680 if (intel_pt_have_ip(decoder))
3681 intel_pt_set_ip(decoder);
3682 if (!decoder->ip)
3684 decoder->state.type |= INTEL_PT_TRACE_BEGIN;
3688 decoder->pge = true;
3689 if (intel_pt_have_ip(decoder))
3690 intel_pt_set_ip(decoder);
3691 if (!decoder->ip)
3696 if (intel_pt_have_ip(decoder))
3697 intel_pt_set_ip(decoder);
3698 if (decoder->ip)
3703 intel_pt_calc_mtc_timestamp(decoder);
3707 intel_pt_calc_tsc_timestamp(decoder);
3711 intel_pt_calc_tma(decoder);
3715 intel_pt_calc_cyc_timestamp(decoder);
3719 intel_pt_calc_cbr(decoder);
3723 intel_pt_set_pip(decoder);
3727 intel_pt_mode_exec_status(decoder);
3731 intel_pt_update_in_tx(decoder);
3735 return intel_pt_overflow(decoder);
3738 return intel_pt_bug(decoder);
3741 decoder->pge = false;
3742 decoder->continuous_period = false;
3743 intel_pt_clear_tx_flags(decoder);
3744 decoder->have_tma = false;
3748 decoder->state.psb_offset = decoder->pos;
3749 decoder->psb_ip = 0;
3750 decoder->last_ip = 0;
3751 decoder->have_last_ip = true;
3752 intel_pt_clear_stack(&decoder->stack);
3753 err = intel_pt_walk_psb(decoder);
3756 decoder->state.type = INTEL_PT_PSB_EVT;
3757 decoder->state.from_ip = decoder->psb_ip;
3758 decoder->state.to_ip = 0;
3786 static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
3790 intel_pt_clear_fup_event(decoder);
3791 decoder->overflow = false;
3793 if (!decoder->branch_enable) {
3794 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3795 decoder->state.type = 0; /* Do not have a sample */
3800 err = intel_pt_walk_to_ip(decoder);
3801 if (err || ((decoder->state.type & INTEL_PT_PSB_EVT) && !decoder->ip))
3805 if (decoder->hop)
3806 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3808 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3810 decoder->state.from_ip = 0;
3811 decoder->state.to_ip = decoder->ip;
3812 intel_pt_log_to("Setting IP", decoder->ip);
3817 static int intel_pt_part_psb(struct intel_pt_decoder *decoder)
3819 const unsigned char *end = decoder->buf + decoder->len;
3823 if (i > decoder->len)
3831 static int intel_pt_rest_psb(struct intel_pt_decoder *decoder, int part_psb)
3836 if (rest_psb > decoder->len ||
3837 memcmp(decoder->buf, psb + part_psb, rest_psb))
3843 static int intel_pt_get_split_psb(struct intel_pt_decoder *decoder,
3848 decoder->pos += decoder->len;
3849 decoder->len = 0;
3851 ret = intel_pt_get_next_data(decoder, false);
3855 rest_psb = intel_pt_rest_psb(decoder, part_psb);
3859 decoder->pos -= part_psb;
3860 decoder->next_buf = decoder->buf + rest_psb;
3861 decoder->next_len = decoder->len - rest_psb;
3862 memcpy(decoder->temp_buf, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
3863 decoder->buf = decoder->temp_buf;
3864 decoder->len = INTEL_PT_PSB_LEN;
3869 static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder)
3876 if (!decoder->len) {
3877 ret = intel_pt_get_next_data(decoder, false);
3882 next = memmem(decoder->buf, decoder->len, INTEL_PT_PSB_STR,
3887 part_psb = intel_pt_part_psb(decoder);
3889 ret = intel_pt_get_split_psb(decoder, part_psb);
3893 decoder->pos += decoder->len;
3894 decoder->len = 0;
3899 decoder->pkt_step = next - decoder->buf;
3900 return intel_pt_get_next_packet(decoder);
3904 static int intel_pt_sync(struct intel_pt_decoder *decoder)
3908 decoder->pge = false;
3909 decoder->continuous_period = false;
3910 decoder->have_last_ip = false;
3911 decoder->last_ip = 0;
3912 decoder->psb_ip = 0;
3913 decoder->ip = 0;
3914 intel_pt_clear_stack(&decoder->stack);
3916 err = intel_pt_scan_for_psb(decoder);
3920 if (decoder->vm_time_correlation) {
3921 decoder->in_psb = true;
3922 if (!decoder->timestamp)
3923 decoder->timestamp = 1;
3924 decoder->state.type = 0;
3925 decoder->pkt_state = INTEL_PT_STATE_VM_TIME_CORRELATION;
3929 decoder->have_last_ip = true;
3930 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3932 err = intel_pt_walk_psb(decoder);
3936 decoder->state.type = INTEL_PT_PSB_EVT; /* Only PSB sample */
3937 decoder->state.from_ip = decoder->psb_ip;
3938 decoder->state.to_ip = 0;
3940 if (decoder->ip) {
3945 if (decoder->hop)
3946 decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
3948 decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
3954 static uint64_t intel_pt_est_timestamp(struct intel_pt_decoder *decoder)
3956 uint64_t est = decoder->sample_insn_cnt << 1;
3958 if (!decoder->cbr || !decoder->max_non_turbo_ratio)
3961 est *= decoder->max_non_turbo_ratio;
3962 est /= decoder->cbr;
3964 return decoder->sample_timestamp + est;
3967 const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
3972 decoder->state.type = INTEL_PT_BRANCH;
3973 decoder->state.flags = 0;
3975 switch (decoder->pkt_state) {
3977 err = intel_pt_sync(decoder);
3980 decoder->have_last_ip = false;
3981 decoder->last_ip = 0;
3982 decoder->ip = 0;
3985 err = intel_pt_sync_ip(decoder);
3988 err = intel_pt_walk_trace(decoder);
3992 err = intel_pt_walk_tnt(decoder);
3994 err = intel_pt_walk_trace(decoder);
3998 err = intel_pt_walk_tip(decoder);
4001 err = intel_pt_walk_fup(decoder);
4003 err = intel_pt_walk_fup_tip(decoder);
4006 err = intel_pt_walk_fup(decoder);
4008 err = intel_pt_walk_trace(decoder);
4011 err = intel_pt_fup_in_psb(decoder);
4014 err = intel_pt_resample(decoder);
4017 err = intel_pt_vm_time_correlation(decoder);
4020 err = intel_pt_bug(decoder);
4026 decoder->state.err = intel_pt_ext_err(err);
4028 decoder->state.from_ip = decoder->ip;
4029 intel_pt_update_sample_time(decoder);
4030 decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt;
4031 intel_pt_set_nr(decoder);
4033 decoder->state.err = 0;
4034 if (decoder->cbr != decoder->cbr_seen) {
4035 decoder->cbr_seen = decoder->cbr;
4036 if (!decoder->state.type) {
4037 decoder->state.from_ip = decoder->ip;
4038 decoder->state.to_ip = 0;
4040 decoder->state.type |= INTEL_PT_CBR_CHG;
4041 decoder->state.cbr_payload = decoder->cbr_payload;
4042 decoder->state.cbr = decoder->cbr;
4044 if (intel_pt_sample_time(decoder->pkt_state)) {
4045 intel_pt_update_sample_time(decoder);
4046 if (decoder->sample_cyc) {
4047 decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt;
4048 decoder->state.flags |= INTEL_PT_SAMPLE_IPC;
4049 decoder->sample_cyc = false;
4056 if (!decoder->have_cyc)
4057 decoder->state.flags |= INTEL_PT_SAMPLE_IPC;
4061 if ((decoder->state.type & INTEL_PT_PSB_EVT) && decoder->tsc_timestamp)
4062 decoder->sample_timestamp = decoder->tsc_timestamp;
4064 decoder->state.from_nr = decoder->nr;
4065 decoder->state.to_nr = decoder->next_nr;
4066 decoder->nr = decoder->next_nr;
4068 decoder->state.timestamp = decoder->sample_timestamp;
4069 decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
4070 decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
4071 decoder->state.tot_cyc_cnt = decoder->sample_tot_cyc_cnt;
4073 return &decoder->state;
4441 * intel_pt_fast_forward - reposition decoder forwards.
4442 * @decoder: Intel PT decoder
4445 * Reposition decoder at the last PSB with a timestamp earlier than @timestamp.
4449 int intel_pt_fast_forward(struct intel_pt_decoder *decoder, uint64_t timestamp)
4459 err = decoder->lookahead(decoder->data, intel_pt_ff_cb, &d);
4466 decoder->pos += decoder->len;
4467 decoder->len = 0;
4468 err = intel_pt_get_next_data(decoder, true);
4472 } while (decoder->buf_timestamp != d.buf_timestamp);
4475 if (!decoder->buf)
4478 buf = (unsigned char *)decoder->buf;
4479 len = decoder->len;
4494 tsc = intel_pt_8b_tsc(tsc, decoder->buf_timestamp);
4503 decoder->pos += decoder->len - len;
4504 decoder->buf = buf;
4505 decoder->len = len;
4506 intel_pt_reposition(decoder);