perf vendor events amd: Fix large metrics

There are cases where a metric requires more events than the number of
available counters. E.g. AMD Zen, Zen 2 and Zen 3 processors have four
data fabric counters but the "nps1_die_to_dram" metric has eight events.

By default, the constituent events are placed in a group and since the
events cannot be scheduled at the same time, the metric is not computed.
The "all metrics" test also fails because of this.

Use the NO_GROUP_EVENTS constraint for such metrics which anyway expect
the user to run perf with "--metric-no-group".

E.g.

  $ sudo perf test -v 101

Before:

  101: perf all metrics test                                           :
  --- start ---
  test child forked, pid 37131
  Testing branch_misprediction_ratio
  Testing all_remote_links_outbound
  Testing nps1_die_to_dram
  Metric 'nps1_die_to_dram' not printed in:
  Error:
  Invalid event (dram_channel_data_controller_4) in per-thread mode, enable system wide with '-a'.
  Testing macro_ops_dispatched
  Testing all_l2_cache_accesses
  Testing all_l2_cache_hits
  Testing all_l2_cache_misses
  Testing ic_fetch_miss_ratio
  Testing l2_cache_accesses_from_l2_hwpf
  Testing l2_cache_misses_from_l2_hwpf
  Testing op_cache_fetch_miss_ratio
  Testing l3_read_miss_latency
  Testing l1_itlb_misses
  test child finished with -1
  ---- end ----
  perf all metrics test: FAILED!

After:

  101: perf all metrics test                                           :
  --- start ---
  test child forked, pid 43766
  Testing branch_misprediction_ratio
  Testing all_remote_links_outbound
  Testing nps1_die_to_dram
  Testing macro_ops_dispatched
  Testing all_l2_cache_accesses
  Testing all_l2_cache_hits
  Testing all_l2_cache_misses
  Testing ic_fetch_miss_ratio
  Testing l2_cache_accesses_from_l2_hwpf
  Testing l2_cache_misses_from_l2_hwpf
  Testing op_cache_fetch_miss_ratio
  Testing l3_read_miss_latency
  Testing l1_itlb_misses
  test child finished with 0
  ---- end ----
  perf all metrics test: Ok

Reported-by: Ayush Jain <[email protected]>
Suggested-by: Ian Rogers <[email protected]>
Signed-off-by: Sandipan Das <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ananth Narayan <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Santosh Shukla <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: sandip4n

tools/perf/pmu-events/arch/x86/amdzen1/recommended.json

@@ -169,8 +169,9 @@
   },
   {
     "MetricName": "nps1_die_to_dram",
-    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die) (may need --metric-no-group)",
+    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die)",
     "MetricExpr": "dram_channel_data_controller_0 + dram_channel_data_controller_1 + dram_channel_data_controller_2 + dram_channel_data_controller_3 + dram_channel_data_controller_4 + dram_channel_data_controller_5 + dram_channel_data_controller_6 + dram_channel_data_controller_7",
+    "MetricConstraint": "NO_GROUP_EVENTS",
     "MetricGroup": "data_fabric",
     "PerPkg": "1",
     "ScaleUnit": "6.1e-5MiB"

tools/perf/pmu-events/arch/x86/amdzen2/recommended.json

@@ -169,8 +169,9 @@
   },
   {
     "MetricName": "nps1_die_to_dram",
-    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die) (may need --metric-no-group)",
+    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die)",
     "MetricExpr": "dram_channel_data_controller_0 + dram_channel_data_controller_1 + dram_channel_data_controller_2 + dram_channel_data_controller_3 + dram_channel_data_controller_4 + dram_channel_data_controller_5 + dram_channel_data_controller_6 + dram_channel_data_controller_7",
+    "MetricConstraint": "NO_GROUP_EVENTS",
     "MetricGroup": "data_fabric",
     "PerPkg": "1",
     "ScaleUnit": "6.1e-5MiB"

tools/perf/pmu-events/arch/x86/amdzen3/recommended.json

@@ -205,10 +205,11 @@
   },
   {
     "MetricName": "nps1_die_to_dram",
-    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die) (may need --metric-no-group)",
+    "BriefDescription": "Approximate: Combined DRAM B/bytes of all channels on a NPS1 node (die)",
     "MetricExpr": "dram_channel_data_controller_0 + dram_channel_data_controller_1 + dram_channel_data_controller_2 + dram_channel_data_controller_3 + dram_channel_data_controller_4 + dram_channel_data_controller_5 + dram_channel_data_controller_6 + dram_channel_data_controller_7",
     "MetricGroup": "data_fabric",
     "PerPkg": "1",
+    "MetricConstraint": "NO_GROUP_EVENTS",
     "ScaleUnit": "6.1e-5MiB"
   }
 ]