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>

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 2a37ae9..140ae63 100644 (file)
--- 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 (file)
--- 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 (file)
--- 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 (file)
--- 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 (file)
--- 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 d9bd632..4bb8937 100644 (file)
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -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;
 }