linux-kernel - Re: [PATCH V2 1/5] perf tools: support new sample type for physical address

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Date:   Fri, 1 Sep 2017 17:28:27 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     kan.liang@...el.com
Cc:     acme@...nel.org, mingo@...hat.com, linux-kernel@...r.kernel.org,
        peterz@...radead.org, eranian@...gle.com, tglx@...utronix.de,
        ak@...ux.intel.com
Subject: Re: [PATCH V2 1/5] perf tools: support new sample type for physical
 address

On Tue, Aug 29, 2017 at 01:11:08PM -0400, kan.liang@...el.com wrote:

SNIP

> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index a5888c7..228a78d 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -950,6 +950,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
>  	if (opts->sample_address)
>  		perf_evsel__set_sample_bit(evsel, DATA_SRC);
>  
> +	if (opts->sample_phys_addr)
> +		perf_evsel__set_sample_bit(evsel, PHYS_ADDR);
> +
>  	if (opts->no_buffering) {
>  		attr->watermark = 0;
>  		attr->wakeup_events = 1;
> @@ -2201,6 +2204,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
>  		}
>  	}
>  
> +	data->phys_addr = 0;
> +	if (type & PERF_SAMPLE_PHYS_ADDR) {
> +		data->phys_addr = *array;
> +		array++;
> +	}
> +
>  	return 0;
>  }
>  
> @@ -2306,6 +2315,9 @@ size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
>  		}
>  	}
>  
> +	if (type & PERF_SAMPLE_PHYS_ADDR)
> +		result += sizeof(u64);
> +
>  	return result;
>  }
>  
> @@ -2495,6 +2507,11 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type,
>  		}
>  	}
>  
> +	if (type & PERF_SAMPLE_PHYS_ADDR) {
> +		*array = sample->phys_addr;
> +		array++;
> +	}
> +
>  	return 0;
>  }
>  

missing the printing bits

jirka


diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index e705c0d59a69..4bb89373eb52 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1467,7 +1467,7 @@ static void __p_sample_type(char *buf, size_t size, u64 value)
 		bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
 		bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
 		bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC),
-		bit_name(WEIGHT),
+		bit_name(WEIGHT), bit_name(PHYS_ADDR),
 		{ .name = NULL, }
 	};
 #undef bit_name