From: Kan Liang <[email protected]> Support new sample type PERF_SAMPLE_PHYS_ADDR for physical address.
Add new option --phys-data to record sample physical address. Signed-off-by: Kan Liang <[email protected]> --- tools/include/uapi/linux/perf_event.h | 4 +++- tools/perf/Documentation/perf-record.txt | 5 ++++- tools/perf/builtin-record.c | 2 ++ tools/perf/perf.h | 1 + tools/perf/util/event.h | 1 + tools/perf/util/evsel.c | 17 +++++++++++++++++ 6 files changed, 28 insertions(+), 2 deletions(-) diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 2a37ae9..140ae63 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -139,8 +139,9 @@ enum perf_event_sample_format { PERF_SAMPLE_IDENTIFIER = 1U << 16, PERF_SAMPLE_TRANSACTION = 1U << 17, PERF_SAMPLE_REGS_INTR = 1U << 18, + PERF_SAMPLE_PHYS_ADDR = 1U << 19, - PERF_SAMPLE_MAX = 1U << 19, /* non-ABI */ + PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ }; /* @@ -814,6 +815,7 @@ enum perf_event_type { * { u64 transaction; } && PERF_SAMPLE_TRANSACTION * { u64 abi; # enum perf_sample_regs_abi * u64 regs[weight(mask)]; } && PERF_SAMPLE_REGS_INTR + * { u64 phys_addr;} && PERF_SAMPLE_PHYS_ADDR * }; */ PERF_RECORD_SAMPLE = 9, diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 9bdea04..e397453 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -249,7 +249,10 @@ OPTIONS -d:: --data:: - Record the sample addresses. + Record the sample virtual addresses. + +--phys-data:: + Record the sample physical addresses. -T:: --timestamp:: diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 36d7117..56f8142 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1604,6 +1604,8 @@ static struct option __record_options[] = { OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat, "per thread counts"), OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"), + OPT_BOOLEAN(0, "phys-data", &record.opts.sample_phys_addr, + "Record the sample physical addresses"), OPT_BOOLEAN(0, "sample-cpu", &record.opts.sample_cpu, "Record the sample cpu"), OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time, &record.opts.sample_time_set, diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 2c010dd..dc442ba 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -43,6 +43,7 @@ struct record_opts { bool no_samples; bool raw_samples; bool sample_address; + bool sample_phys_addr; bool sample_weight; bool sample_time; bool sample_time_set; diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 423ac82..ee7bcc8 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -200,6 +200,7 @@ struct perf_sample { u32 cpu; u32 raw_size; u64 data_src; + u64 phys_addr; u32 flags; u16 insn_len; u8 cpumode; 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; } -- 2.4.3
