perf vendor events intel: Update SKX events to v1.27

Events are generated for Skylake Server v1.27 with
events from:

  https://download.01.org/perfmon/SKX/

Using the scripts at:

  https://github.com/intel/event-converter-for-linux-perf/

This change updates descriptions, adds INST_DECODED.DECODERS and
corrects a counter mask in UOPS_RETIRED.TOTAL_CYCLES.
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: 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: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220428075730.797727-5-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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

@@ -416,6 +416,16 @@
         "SampleAfterValue": "2000003",
         "UMask": "0x1"
     },
+    {
+        "BriefDescription": "Instruction decoders utilized in a cycle",
+        "Counter": "0,1,2,3",
+        "CounterHTOff": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x55",
+        "EventName": "INST_DECODED.DECODERS",
+        "PublicDescription": "Number of decoders utilized in a cycle when the MITE (legacy decode pipeline) fetches instructions.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x1"
+    },
     {
         "BriefDescription": "Instructions retired from execution.",
         "Counter": "Fixed counter 0",
@@ -969,7 +979,7 @@
         "BriefDescription": "Cycles with less than 10 actually retired uops.",
         "Counter": "0,1,2,3",
         "CounterHTOff": "0,1,2,3,4,5,6,7",
-        "CounterMask": "10",
+        "CounterMask": "16",
         "EventCode": "0xC2",
         "EventName": "UOPS_RETIRED.TOTAL_CYCLES",
         "Invert": "1",
@@ -977,4 +987,4 @@
         "SampleAfterValue": "2000003",
         "UMask": "0x2"
     }
-]
\ No newline at end of file
+]

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

@@ -606,7 +606,7 @@
         "EventCode": "0x5C",
         "EventName": "UNC_CHA_SNOOP_RESP.RSP_FWD_WB",
         "PerPkg": "1",
-        "PublicDescription": "Counts when a transaction with the opcode type Rsp*Fwd*WB Snoop Response was received which indicates the data was written back to it's home socket, and the cacheline was forwarded to the requestor socket.  This snoop response is only used in >= 4 socket systems.  It is used when a snoop HITM's in a remote caching agent and it directly forwards data to a requestor, and simultaneously returns data to it's home socket to be written back to memory.",
+        "PublicDescription": "Counts when a transaction with the opcode type Rsp*Fwd*WB Snoop Response was received which indicates the data was written back to its home socket, and the cacheline was forwarded to the requestor socket.  This snoop response is only used in >= 4 socket systems.  It is used when a snoop HITM's in a remote caching agent and it directly forwards data to a requestor, and simultaneously returns data to its home socket to be written back to memory.",
         "UMask": "0x20",
         "Unit": "CHA"
     },
@@ -616,7 +616,7 @@
         "EventCode": "0x5C",
         "EventName": "UNC_CHA_SNOOP_RESP.RSP_WBWB",
         "PerPkg": "1",
-        "PublicDescription": "Counts when a transaction with the opcode type Rsp*WB Snoop Response was received which indicates which indicates the data was written back to it's home.  This is returned when a non-RFO request hits a cacheline in the Modified state. The Cache can either downgrade the cacheline to a S (Shared) or I (Invalid) state depending on how the system has been configured.  This reponse will also be sent when a cache requests E (Exclusive) ownership of a cache line without receiving data, because the cache must acquire ownership.",
+        "PublicDescription": "Counts when a transaction with the opcode type Rsp*WB Snoop Response was received which indicates which indicates the data was written back to its home.  This is returned when a non-RFO request hits a cacheline in the Modified state. The Cache can either downgrade the cacheline to a S (Shared) or I (Invalid) state depending on how the system has been configured.  This response will also be sent when a cache requests E (Exclusive) ownership of a cache line without receiving data, because the cache must acquire ownership.",
         "UMask": "0x10",
         "Unit": "CHA"
     },