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perf tools: Support new sample type for physical address 

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 <kan.liang@intel.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1504026672-7304-2-git-send-email-kan.liang@intel.com
[ Added missing printing in evsel.c patch sent by Jiri Olsa ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2017-08-29 13:11:08 -04:00 committed by Arnaldo Carvalho de Melo
parent 2a118e1bd2
commit 3b0a5daa06
6 changed files with 29 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/include/uapi/linux/perf_event.h
View File

@ -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,

5
tools/perf/Documentation/perf-record.txt
View File

@ -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::

2
tools/perf/builtin-record.c
View File

@ -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,

1
tools/perf/perf.h
View File

@ -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;

1
tools/perf/util/event.h
View File

@ -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;

19
tools/perf/util/evsel.c
View File

@ -955,6 +955,9 @@ 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;
@ -1464,7 +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
@ -2206,6 +2209,12 @@ 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;
}
@ -2311,6 +2320,9 @@ 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;
}
@ -2500,6 +2512,11 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type,
}
}
if (type & PERF_SAMPLE_PHYS_ADDR) {
*array = sample->phys_addr;
array++;
}
return 0;
}