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Commit 0f3e5379 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
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perf intel-pt: Factor out common code synthesizing event samples 

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: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-27-git-send-email-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 65c5e18f
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Showing with 100 additions and 122 deletions
tools/perf/util/intel-pt.c
View file @ 0f3e5379
......@@ -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,
......
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