perf intel-pt: Prepare to synthesize PEBS samples (e62ca655) · Commits · 戴 / test

tools/perf/util/intel-pt.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -101,6 +101,9 @@ struct intel_pt {
		u64 pwrx_id;
		u64 cbr_id;

		bool sample_pebs;
		struct perf_evsel *pebs_evsel;

		u64 tsc_bit;
		u64 mtc_bit;
		u64 mtc_freq_bits;
		@@ -1535,6 +1538,11 @@ static int intel_pt_synth_pwrx_sample(struct intel_pt_queue *ptq)
		pt->pwr_events_sample_type);
		}

		static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq __maybe_unused)
		{
		return 0;
		}

		static int intel_pt_synth_error(struct intel_pt *pt, int code, int cpu,
		pid_t pid, pid_t tid, u64 ip, u64 timestamp)
		{
		@@ -1622,6 +1630,16 @@ static int intel_pt_sample(struct intel_pt_queue *ptq)
		ptq->ipc_cyc_cnt = ptq->state->tot_cyc_cnt;
		}

		/*
		* Do PEBS first to allow for the possibility that the PEBS timestamp
		* precedes the current timestamp.
		*/
		if (pt->sample_pebs && state->type & INTEL_PT_BLK_ITEMS) {
		err = intel_pt_synth_pebs_sample(ptq);
		if (err)
		return err;
		}

		if (pt->sample_pwr_events && (state->type & INTEL_PT_PWR_EVT)) {
		if (state->type & INTEL_PT_CBR_CHG) {
		err = intel_pt_synth_cbr_sample(ptq);