perf vendor events: Update metrics for SkyLake Server

Based on TMA_metrics-full.csv version 4.3 at 01.org:
    https://download.01.org/perfmon/
Events are updated to version 1.26:
    https://download.01.org/perfmon/SKX
Json files generated by:
    https://github.com/intel/event-converter-for-linux-perf

Fixes were made that allow the skx-metrics.json to successfully
generate, bringing back TopdownL1 metrics.

Tested:

  $ perf test
  ...
    6: Parse event definition strings                                  : Ok
    7: Simple expression parser                                        : Ok
  ...
    9: Parse perf pmu format                                           : Ok
   10: PMU events                                                      :
   10.1: PMU event table sanity                                        : Ok
   10.2: PMU event map aliases                                         : Ok
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok
  ...
   68: Parse and process metrics                                       : Ok
  ...
   88: perf stat metrics (shadow stat) test                            : Ok
   89: perf all metricgroups test                                      : Ok
   90: perf all metrics test                                           : Skip
   91: perf all PMU test                                               : Ok
  ...

90 skips due to a lack of floating point samples, which is
understandable.

Fixes: c4ad8fab ("perf vendor events: Update metrics for SkyLake Server")
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220201015858.1226914-3-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/pmu-events/arch/x86/skylakex/frontend.json

@@ -30,7 +30,21 @@
         "UMask": "0x2"
     },
     {
-        "BriefDescription": "Retired Instructions who experienced decode stream buffer (DSB - the decoded instruction-cache) miss.",
+        "BriefDescription": "Retired Instructions who experienced DSB miss.",
+        "Counter": "0,1,2,3",
+        "CounterHTOff": "0,1,2,3",
+        "EventCode": "0xC6",
+        "EventName": "FRONTEND_RETIRED.ANY_DSB_MISS",
+        "MSRIndex": "0x3F7",
+        "MSRValue": "0x1",
+        "PEBS": "1",
+        "PublicDescription": "Counts retired Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.",
+        "SampleAfterValue": "100007",
+        "TakenAlone": "1",
+        "UMask": "0x1"
+    },
+    {
+        "BriefDescription": "Retired Instructions who experienced a critical DSB miss.",
         "Counter": "0,1,2,3",
         "CounterHTOff": "0,1,2,3",
         "EventCode": "0xC6",
@@ -38,7 +52,7 @@
         "MSRIndex": "0x3F7",
         "MSRValue": "0x11",
         "PEBS": "1",
-        "PublicDescription": "Counts retired Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.",
+        "PublicDescription": "Number of retired Instructions that experienced a critical DSB (Decode stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to the back-end as a result of the DSB miss.",
         "SampleAfterValue": "100007",
         "TakenAlone": "1",
         "UMask": "0x1"

tools/perf/pmu-events/arch/x86/skylakex/pipeline.json

@@ -435,6 +435,17 @@
         "PublicDescription": "Counts the number of instructions (EOMs) retired. Counting covers macro-fused instructions individually (that is, increments by two).",
         "SampleAfterValue": "2000003"
     },
+    {
+        "BriefDescription": "Number of all retired NOP instructions.",
+        "Counter": "0,1,2,3",
+        "CounterHTOff": "0,1,2,3,4,5,6,7",
+        "Errata": "SKL091, SKL044",
+        "EventCode": "0xC0",
+        "EventName": "INST_RETIRED.NOP",
+        "PEBS": "1",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x2"
+    },
     {
         "BriefDescription": "Precise instruction retired event with HW to reduce effect of PEBS shadow in IP distribution",
         "Counter": "1",

tools/perf/pmu-events/arch/x86/skylakex/uncore-other.json

@@ -537,6 +537,18 @@
         "PublicDescription": "Counts clockticks of the 1GHz trafiic controller clock in the IIO unit.",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "PCIe Completion Buffer Inserts of completions with data: Part 0-3",
+        "Counter": "0,1,2,3",
+        "EventCode": "0xC2",
+        "EventName": "UNC_IIO_COMP_BUF_INSERTS.CMPD.ALL_PARTS",
+        "FCMask": "0x4",
+        "PerPkg": "1",
+        "PortMask": "0x0f",
+        "PublicDescription": "PCIe Completion Buffer Inserts of completions with data: Part 0-3",
+        "UMask": "0x03",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "PCIe Completion Buffer Inserts of completions with data: Part 0",
         "Counter": "0,1,2,3",
@@ -585,6 +597,17 @@
         "UMask": "0x03",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "PCIe Completion Buffer occupancy of completions with data: Part 0-3",
+        "Counter": "2,3",
+        "EventCode": "0xD5",
+        "EventName": "UNC_IIO_COMP_BUF_OCCUPANCY.CMPD.ALL_PARTS",
+        "FCMask": "0x04",
+        "PerPkg": "1",
+        "PublicDescription": "PCIe Completion Buffer occupancy of completions with data: Part 0-3",
+        "UMask": "0x0f",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "PCIe Completion Buffer occupancy of completions with data: Part 0",
         "Counter": "2,3",