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Groups > linux.kernel > #1645439
| From | Adrian Hunter <adrian.hunter@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 25/37] perf intel-pt: Factor out common code synthesizing event samples |
| Date | 2017-05-19 11:10 +0200 |
| Message-ID | <tIM56-8nS-69@gated-at.bofh.it> (permalink) |
| References | <tIM53-8nS-3@gated-at.bofh.it> |
| Organization | Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki |
Factor out common code in functions synthesizing event samples i.e.
intel_pt_synth_branch_sample(), intel_pt_synth_instruction_sample() and
intel_pt_synth_transaction_sample().
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/intel-pt.c | 222 ++++++++++++++++++++-------------------------
1 file changed, 100 insertions(+), 122 deletions(-)
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 6df836469f2b..dbff5dca09f0 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1058,6 +1058,36 @@ static void intel_pt_update_last_branch_rb(struct intel_pt_queue *ptq)
bs->nr += 1;
}
+static inline bool intel_pt_skip_event(struct intel_pt *pt)
+{
+ return pt->synth_opts.initial_skip &&
+ pt->num_events++ < pt->synth_opts.initial_skip;
+}
+
+static void intel_pt_prep_b_sample(struct intel_pt *pt,
+ struct intel_pt_queue *ptq,
+ union perf_event *event,
+ struct perf_sample *sample)
+{
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample->time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample->cpumode = PERF_RECORD_MISC_USER;
+ sample->ip = ptq->state->from_ip;
+ sample->pid = ptq->pid;
+ sample->tid = ptq->tid;
+ sample->addr = ptq->state->to_ip;
+ sample->period = 1;
+ sample->cpu = ptq->cpu;
+ sample->flags = ptq->flags;
+ sample->insn_len = ptq->insn_len;
+ memcpy(sample->insn, ptq->insn, INTEL_PT_INSN_BUF_SZ);
+}
+
static int intel_pt_inject_event(union perf_event *event,
struct perf_sample *sample, u64 type,
bool swapped)
@@ -1066,9 +1096,35 @@ static int intel_pt_inject_event(union perf_event *event,
return perf_event__synthesize_sample(event, type, 0, sample, swapped);
}
-static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
+static inline int intel_pt_opt_inject(struct intel_pt *pt,
+ union perf_event *event,
+ struct perf_sample *sample, u64 type)
+{
+ if (!pt->synth_opts.inject)
+ return 0;
+
+ return intel_pt_inject_event(event, sample, type, pt->synth_needs_swap);
+}
+
+static int intel_pt_deliver_synth_b_event(struct intel_pt *pt,
+ union perf_event *event,
+ struct perf_sample *sample, u64 type)
{
int ret;
+
+ ret = intel_pt_opt_inject(pt, event, sample, type);
+ if (ret)
+ return ret;
+
+ ret = perf_session__deliver_synth_event(pt->session, event, sample);
+ if (ret)
+ pr_err("Intel PT: failed to deliver event, error %d\n", ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
+{
struct intel_pt *pt = ptq->pt;
union perf_event *event = ptq->event_buf;
struct perf_sample sample = { .ip = 0, };
@@ -1080,29 +1136,13 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
return 0;
- if (pt->synth_opts.initial_skip &&
- pt->num_events++ < pt->synth_opts.initial_skip)
+ if (intel_pt_skip_event(pt))
return 0;
- event->sample.header.type = PERF_RECORD_SAMPLE;
- event->sample.header.misc = PERF_RECORD_MISC_USER;
- event->sample.header.size = sizeof(struct perf_event_header);
+ intel_pt_prep_b_sample(pt, ptq, event, &sample);
- if (!pt->timeless_decoding)
- sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
-
- sample.cpumode = PERF_RECORD_MISC_USER;
- sample.ip = ptq->state->from_ip;
- sample.pid = ptq->pid;
- sample.tid = ptq->tid;
- sample.addr = ptq->state->to_ip;
sample.id = ptq->pt->branches_id;
sample.stream_id = ptq->pt->branches_id;
- sample.period = 1;
- sample.cpu = ptq->cpu;
- sample.flags = ptq->flags;
- sample.insn_len = ptq->insn_len;
- memcpy(sample.insn, ptq->insn, INTEL_PT_INSN_BUF_SZ);
/*
* perf report cannot handle events without a branch stack when using
@@ -1119,78 +1159,38 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
sample.branch_stack = (struct branch_stack *)&dummy_bs;
}
- if (pt->synth_opts.inject) {
- ret = intel_pt_inject_event(event, &sample,
- pt->branches_sample_type,
- pt->synth_needs_swap);
- if (ret)
- return ret;
- }
-
- ret = perf_session__deliver_synth_event(pt->session, event, &sample);
- if (ret)
- pr_err("Intel Processor Trace: failed to deliver branch event, error %d\n",
- ret);
-
- return ret;
+ return intel_pt_deliver_synth_b_event(pt, event, &sample,
+ pt->branches_sample_type);
}
-static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
+static void intel_pt_prep_sample(struct intel_pt *pt,
+ struct intel_pt_queue *ptq,
+ union perf_event *event,
+ struct perf_sample *sample)
{
- int ret;
- struct intel_pt *pt = ptq->pt;
- union perf_event *event = ptq->event_buf;
- struct perf_sample sample = { .ip = 0, };
-
- if (pt->synth_opts.initial_skip &&
- pt->num_events++ < pt->synth_opts.initial_skip)
- return 0;
-
- event->sample.header.type = PERF_RECORD_SAMPLE;
- event->sample.header.misc = PERF_RECORD_MISC_USER;
- event->sample.header.size = sizeof(struct perf_event_header);
-
- if (!pt->timeless_decoding)
- sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
-
- sample.cpumode = PERF_RECORD_MISC_USER;
- sample.ip = ptq->state->from_ip;
- sample.pid = ptq->pid;
- sample.tid = ptq->tid;
- sample.addr = ptq->state->to_ip;
- sample.id = ptq->pt->instructions_id;
- sample.stream_id = ptq->pt->instructions_id;
- sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt;
- sample.cpu = ptq->cpu;
- sample.flags = ptq->flags;
- sample.insn_len = ptq->insn_len;
- memcpy(sample.insn, ptq->insn, INTEL_PT_INSN_BUF_SZ);
-
- ptq->last_insn_cnt = ptq->state->tot_insn_cnt;
+ intel_pt_prep_b_sample(pt, ptq, event, sample);
if (pt->synth_opts.callchain) {
thread_stack__sample(ptq->thread, ptq->chain,
- pt->synth_opts.callchain_sz, sample.ip);
- sample.callchain = ptq->chain;
+ pt->synth_opts.callchain_sz, sample->ip);
+ sample->callchain = ptq->chain;
}
if (pt->synth_opts.last_branch) {
intel_pt_copy_last_branch_rb(ptq);
- sample.branch_stack = ptq->last_branch;
+ sample->branch_stack = ptq->last_branch;
}
+}
- if (pt->synth_opts.inject) {
- ret = intel_pt_inject_event(event, &sample,
- pt->instructions_sample_type,
- pt->synth_needs_swap);
- if (ret)
- return ret;
- }
+static inline int intel_pt_deliver_synth_event(struct intel_pt *pt,
+ struct intel_pt_queue *ptq,
+ union perf_event *event,
+ struct perf_sample *sample,
+ u64 type)
+{
+ int ret;
- ret = perf_session__deliver_synth_event(pt->session, event, &sample);
- if (ret)
- pr_err("Intel Processor Trace: failed to deliver instruction event, error %d\n",
- ret);
+ ret = intel_pt_deliver_synth_b_event(pt, event, sample, type);
if (pt->synth_opts.last_branch)
intel_pt_reset_last_branch_rb(ptq);
@@ -1198,65 +1198,43 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
return ret;
}
-static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
+static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
{
- int ret;
struct intel_pt *pt = ptq->pt;
union perf_event *event = ptq->event_buf;
struct perf_sample sample = { .ip = 0, };
- if (pt->synth_opts.initial_skip &&
- pt->num_events++ < pt->synth_opts.initial_skip)
+ if (intel_pt_skip_event(pt))
return 0;
- event->sample.header.type = PERF_RECORD_SAMPLE;
- event->sample.header.misc = PERF_RECORD_MISC_USER;
- event->sample.header.size = sizeof(struct perf_event_header);
+ intel_pt_prep_sample(pt, ptq, event, &sample);
- if (!pt->timeless_decoding)
- sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+ sample.id = ptq->pt->instructions_id;
+ sample.stream_id = ptq->pt->instructions_id;
+ sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt;
- sample.cpumode = PERF_RECORD_MISC_USER;
- sample.ip = ptq->state->from_ip;
- sample.pid = ptq->pid;
- sample.tid = ptq->tid;
- sample.addr = ptq->state->to_ip;
- sample.id = ptq->pt->transactions_id;
- sample.stream_id = ptq->pt->transactions_id;
- sample.period = 1;
- sample.cpu = ptq->cpu;
- sample.flags = ptq->flags;
- sample.insn_len = ptq->insn_len;
- memcpy(sample.insn, ptq->insn, INTEL_PT_INSN_BUF_SZ);
+ ptq->last_insn_cnt = ptq->state->tot_insn_cnt;
- if (pt->synth_opts.callchain) {
- thread_stack__sample(ptq->thread, ptq->chain,
- pt->synth_opts.callchain_sz, sample.ip);
- sample.callchain = ptq->chain;
- }
+ return intel_pt_deliver_synth_event(pt, ptq, event, &sample,
+ pt->instructions_sample_type);
+}
- if (pt->synth_opts.last_branch) {
- intel_pt_copy_last_branch_rb(ptq);
- sample.branch_stack = ptq->last_branch;
- }
+static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
+{
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
- if (pt->synth_opts.inject) {
- ret = intel_pt_inject_event(event, &sample,
- pt->transactions_sample_type,
- pt->synth_needs_swap);
- if (ret)
- return ret;
- }
+ if (intel_pt_skip_event(pt))
+ return 0;
- ret = perf_session__deliver_synth_event(pt->session, event, &sample);
- if (ret)
- pr_err("Intel Processor Trace: failed to deliver transaction event, error %d\n",
- ret);
+ intel_pt_prep_sample(pt, ptq, event, &sample);
- if (pt->synth_opts.last_branch)
- intel_pt_reset_last_branch_rb(ptq);
+ sample.id = ptq->pt->transactions_id;
+ sample.stream_id = ptq->pt->transactions_id;
- return ret;
+ return intel_pt_deliver_synth_event(pt, ptq, event, &sample,
+ pt->transactions_sample_type);
}
static int intel_pt_synth_error(struct intel_pt *pt, int code, int cpu,
--
1.9.1
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 00/37] perf intel-pt: Power events and PTWRITE Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 30/37] perf intel-pt: Factor out intel_pt_set_event_name() Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 14/37] perf intel-pt: Add decoder support for CBR events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 27/37] perf intel-pt: Join needlessly wrapped lines Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 17/37] perf tools: Fix message because cpu list option is -C not -c Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 07/37] perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 37/37] perf intel-pt: Improve sample timestamp Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
Re: [PATCH 37/37] perf intel-pt: Improve sample timestamp Andi Kleen <ak@linux.intel.com> - 2017-05-19 16:40 +0200
[PATCH 09/37] perf intel-pt: Add missing __fallthrough Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 19/37] perf script: Add 'synth' event type for synthesized events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 35/37] perf intel-pt: Do not use TSC packets for calculating CPU cycles to TSC Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 05/37] perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 03/37] perf intel-pt: Add documentation for new config terms Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 26/37] perf intel-pt: Remove unused instructions_sample_period Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 11/37] perf intel-pt: Add decoder support for ptwrite and power event packets Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 18/37] perf script: Fix message because field list option is -F not -f Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 13/37] perf intel-pt: Move decoder error setting into one condition Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 32/37] perf intel-pt: Synthesize new power and ptwrite events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 15/37] perf intel-pt: Remove redundant initial_skip checks Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 24/37] perf script: Add synthesized Intel PT power and ptwrite events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 36/37] perf auxtrace: Add CPU filter support Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 23/37] perf auxtrace: Add itrace option to output power events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 25/37] perf intel-pt: Factor out common code synthesizing event samples Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 04/37] perf intel-pt: Fix missing stack clear Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 20/37] perf script: Add 'synth' field for synthesized event payloads Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 34/37] perf intel-pt: Update documentation to include new ptwrite and power events Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 10/37] perf intel-pt: Clear FUP flag on error Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 28/37] perf intel-pt: Tidy Intel PT evsel lookup into separate function Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 16/37] perf intel-pt: Fix transactions_sample_type Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:10 +0200
[PATCH 01/37] perf intel-pt: Allow decoding with branch tracing disabled Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:20 +0200
[PATCH 02/37] perf intel-pt: Add default config for pass-through branch enable Adrian Hunter <adrian.hunter@intel.com> - 2017-05-19 11:20 +0200
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