From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Andi Kleen <ak@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH V2 15/37] perf intel-pt: Add decoder support for CBR events
Date: Fri, 26 May 2017 11:17:16 +0300 [thread overview]
Message-ID: <1495786658-18063-16-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1495786658-18063-1-git-send-email-adrian.hunter@intel.com>
Add decoder support for informing the tools of changes to the core-to-bus
ratio (CBR).
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 19 +++++++++++++++++++
tools/perf/util/intel-pt-decoder/intel-pt-decoder.h | 2 ++
2 files changed, 21 insertions(+)
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 96bf8d8e83c0..5dea06289db5 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -141,6 +141,7 @@ struct intel_pt_decoder {
int pkt_len;
int last_packet_type;
unsigned int cbr;
+ unsigned int cbr_seen;
unsigned int max_non_turbo_ratio;
double max_non_turbo_ratio_fp;
double cbr_cyc_to_tsc;
@@ -167,6 +168,7 @@ struct intel_pt_decoder {
uint64_t fup_ptw_payload;
uint64_t fup_mwait_payload;
uint64_t fup_pwre_payload;
+ uint64_t cbr_payload;
uint64_t timestamp_insn_cnt;
uint64_t sample_insn_cnt;
uint64_t stuck_ip;
@@ -1446,6 +1448,8 @@ static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
{
unsigned int cbr = decoder->packet.payload & 0xff;
+ decoder->cbr_payload = decoder->packet.payload;
+
if (decoder->cbr == cbr)
return;
@@ -1806,6 +1810,16 @@ static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
case INTEL_PT_CBR:
intel_pt_calc_cbr(decoder);
+ if (!decoder->branch_enable &&
+ decoder->cbr != decoder->cbr_seen) {
+ decoder->cbr_seen = decoder->cbr;
+ decoder->state.type = INTEL_PT_CBR_CHG;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->state.cbr_payload =
+ decoder->packet.payload;
+ return 0;
+ }
break;
case INTEL_PT_MODE_EXEC:
@@ -2343,6 +2357,11 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
} else {
decoder->state.err = 0;
+ if (decoder->cbr != decoder->cbr_seen && decoder->state.type) {
+ decoder->cbr_seen = decoder->cbr;
+ decoder->state.type |= INTEL_PT_CBR_CHG;
+ decoder->state.cbr_payload = decoder->cbr_payload;
+ }
if (intel_pt_sample_time(decoder->pkt_state)) {
decoder->sample_timestamp = decoder->timestamp;
decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
index 414c88e9e0da..921b22e8ca0e 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
@@ -36,6 +36,7 @@ enum intel_pt_sample_type {
INTEL_PT_PWR_ENTRY = 1 << 5,
INTEL_PT_EX_STOP = 1 << 6,
INTEL_PT_PWR_EXIT = 1 << 7,
+ INTEL_PT_CBR_CHG = 1 << 8,
};
enum intel_pt_period_type {
@@ -73,6 +74,7 @@ struct intel_pt_state {
uint64_t mwait_payload;
uint64_t pwre_payload;
uint64_t pwrx_payload;
+ uint64_t cbr_payload;
uint32_t flags;
enum intel_pt_insn_op insn_op;
int insn_len;
--
1.9.1
next prev parent reply other threads:[~2017-05-26 8:32 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-26 8:17 [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 01/37] perf intel-pt: Move decoder error setting into one condition Adrian Hunter
2017-06-21 18:19 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 02/37] perf intel-pt: Improve sample timestamp Adrian Hunter
2017-06-21 18:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 03/37] perf intel-pt: Fix missing stack clear Adrian Hunter
2017-06-21 18:20 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 04/37] perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP Adrian Hunter
2017-06-21 18:21 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 05/37] perf intel-pt: Fix last_ip usage Adrian Hunter
2017-06-21 18:22 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 06/37] perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero Adrian Hunter
2017-06-21 18:22 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 07/37] perf intel-pt: Use FUP always when scanning for an IP Adrian Hunter
2017-06-21 18:23 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 08/37] perf intel-pt: Clear FUP flag on error Adrian Hunter
2017-06-21 18:23 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 09/37] perf intel-pt: Add missing __fallthrough Adrian Hunter
2017-06-21 18:24 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 10/37] perf intel-pt: Allow decoding with branch tracing disabled Adrian Hunter
2017-06-21 18:24 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 11/37] perf intel-pt: Add default config for pass-through branch enable Adrian Hunter
2017-06-21 18:25 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 12/37] perf intel-pt: Add documentation for new config terms Adrian Hunter
2017-06-21 18:25 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 13/37] perf intel-pt: Add decoder support for ptwrite and power event packets Adrian Hunter
2017-06-21 18:26 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 14/37] perf intel-pt: Add reserved byte to CBR packet payload Adrian Hunter
2017-06-21 18:27 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` Adrian Hunter [this message]
2017-06-21 18:27 ` [tip:perf/core] perf intel-pt: Add decoder support for CBR events tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 16/37] perf intel-pt: Remove redundant initial_skip checks Adrian Hunter
2017-06-21 18:28 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 17/37] perf intel-pt: Fix transactions_sample_type Adrian Hunter
2017-06-21 18:28 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 18/37] perf tools: Fix message because cpu list option is -C not -c Adrian Hunter
2017-06-21 18:29 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 19/37] perf script: Fix message because field list option is -F not -f Adrian Hunter
2017-06-21 18:29 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 20/37] perf script: Add 'synth' event type for synthesized events Adrian Hunter
2017-06-21 10:17 ` [PATCH V3 " Adrian Hunter
2017-06-21 13:51 ` Arnaldo Carvalho de Melo
2017-06-21 16:41 ` Adrian Hunter
2017-06-21 17:29 ` Arnaldo Carvalho de Melo
2017-06-21 20:20 ` Adrian Hunter
2017-06-22 14:59 ` Arnaldo Carvalho de Melo
2017-07-01 8:50 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 21/37] perf script: Add 'synth' field for synthesized event payloads Adrian Hunter
2017-06-21 10:17 ` [PATCH V3 " Adrian Hunter
2017-07-01 8:51 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 22/37] tools include: Add byte-swapping macros to kernel.h Adrian Hunter
2017-07-01 8:50 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 23/37] perf auxtrace: Add itrace option to output ptwrite events Adrian Hunter
2017-07-01 8:51 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 24/37] perf auxtrace: Add itrace option to output power events Adrian Hunter
2017-07-01 8:51 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 25/37] perf script: Add synthesized Intel PT power and ptwrite events Adrian Hunter
2017-06-28 13:04 ` Arnaldo Carvalho de Melo
2017-06-28 17:40 ` Adrian Hunter
2017-06-28 18:53 ` Arnaldo Carvalho de Melo
2017-06-28 20:21 ` Hunter, Adrian
2017-06-28 20:26 ` Arnaldo Carvalho de Melo
2017-06-29 19:56 ` Adrian Hunter
2017-06-29 20:13 ` Arnaldo Carvalho de Melo
2017-06-30 2:08 ` Arnaldo Carvalho de Melo
2017-06-30 8:51 ` Adrian Hunter
2017-06-30 14:54 ` Arnaldo Carvalho de Melo
2017-06-30 19:37 ` Hunter, Adrian
2017-06-30 8:36 ` [PATCH V3 " Adrian Hunter
2017-07-01 8:52 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 26/37] perf intel-pt: Factor out common code synthesizing event samples Adrian Hunter
2017-07-01 8:52 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 27/37] perf intel-pt: Remove unused instructions_sample_period Adrian Hunter
2017-07-01 8:52 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 28/37] perf intel-pt: Join needlessly wrapped lines Adrian Hunter
2017-07-01 8:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 29/37] perf intel-pt: Tidy Intel PT evsel lookup into separate function Adrian Hunter
2017-07-01 8:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 30/37] perf intel-pt: Tidy messages into called function intel_pt_synth_event() Adrian Hunter
2017-07-01 8:53 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 31/37] perf intel-pt: Factor out intel_pt_set_event_name() Adrian Hunter
2017-07-01 8:54 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 32/37] perf intel-pt: Move code in intel_pt_synth_events() to simplify attr setting Adrian Hunter
2017-07-01 8:54 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 33/37] perf intel-pt: Synthesize new power and ptwrite events Adrian Hunter
2017-06-30 8:36 ` [PATCH V3 " Adrian Hunter
2017-07-01 8:54 ` [tip:perf/core] perf intel-pt: Synthesize new power and "ptwrite" events tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 34/37] perf intel-pt: Add example script for power events and PTWRITE Adrian Hunter
2017-07-01 8:55 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 35/37] perf intel-pt: Update documentation to include new ptwrite and power events Adrian Hunter
2017-07-01 8:55 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 36/37] perf intel-pt: Do not use TSC packets for calculating CPU cycles to TSC Adrian Hunter
2017-07-01 8:56 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-05-26 8:17 ` [PATCH V2 37/37] perf auxtrace: Add CPU filter support Adrian Hunter
2017-07-01 8:56 ` [tip:perf/core] " tip-bot for Adrian Hunter
2017-06-12 13:04 ` [PATCH V2 00/37] perf intel-pt: Power events and PTWRITE Adrian Hunter
2017-06-12 13:56 ` Arnaldo Carvalho de Melo
2017-06-21 10:20 ` Adrian Hunter
2017-06-21 13:40 ` Arnaldo Carvalho de Melo
2017-06-27 15:27 ` Arnaldo Carvalho de Melo
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