[PATCH v1 09/12] perf vendor events intel: Update meteorlake events from 1.20 to 1.21

[Ian Rogers <irogers@google.com>]

The updated events and metrics were published in:
https://github.com/intel/perfmon/commit/419a6600ad2019d4acbf0f79cc54cde85164afc1

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv    |   2 +-
 .../pmu-events/arch/x86/meteorlake/cache.json |  55 ++++++
 .../arch/x86/meteorlake/floating-point.json   |  63 +++++++
 .../arch/x86/meteorlake/memory.json           |  64 +++++++
 .../arch/x86/meteorlake/pipeline.json         | 158 ++++++++++++++++++
 .../arch/x86/meteorlake/virtual-memory.json   |   9 +
 6 files changed, 350 insertions(+), 1 deletion(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 4176d22da1a7..1a6bb8597cbe 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -23,7 +23,7 @@ GenuineIntel-6-3E,v24,ivytown,core
 GenuineIntel-6-2D,v24,jaketown,core
 GenuineIntel-6-(57|85),v16,knightslanding,core
 GenuineIntel-6-BD,v1.22,lunarlake,core
-GenuineIntel-6-(AA|AC|B5),v1.20,meteorlake,core
+GenuineIntel-6-(AA|AC|B5),v1.21,meteorlake,core
 GenuineIntel-6-1[AEF],v4,nehalemep,core
 GenuineIntel-6-2E,v4,nehalemex,core
 GenuineIntel-6-CC,v1.04,pantherlake,core
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/cache.json b/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
index 4c1220c19456..6419bc36f249 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
@@ -1,4 +1,13 @@
 [
+    {
+        "BriefDescription": "Counts the number of request that were not accepted into the L2Q because the L2Q is FULL.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x31",
+        "EventName": "CORE_REJECT_L2Q.ANY",
+        "PublicDescription": "Counts the number of (demand and L1 prefetchers) core requests rejected by the L2Q due to a full or nearly full w condition which likely indicates back pressure from L2Q.  It also counts requests that would have gone directly to the XQ, but are rejected due to a full or nearly full condition, indicating back pressure from the IDI link.  The L2Q may also reject transactions  from a core to insure fairness between cores, or to delay a cores dirty eviction when the address conflicts incoming external snoops.  (Note that L2 prefetcher requests that are dropped are not counted by this event.) Counts on a per core basis.",
+        "SampleAfterValue": "200003",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of L1D cacheline (dirty) evictions caused by load misses, stores, and prefetches.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -181,6 +190,15 @@
         "UMask": "0x4",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of demand and prefetch transactions that the External Queue (XQ) rejects due to a full or near full condition.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x30",
+        "EventName": "L2_REJECT_XQ.ANY",
+        "PublicDescription": "Counts the number of demand and prefetch transactions that the External Queue (XQ) rejects due to a full or near full condition which likely indicates back pressure from the IDI link.  The XQ may reject transactions from the L2Q (non-cacheable requests), BBL (L2 misses) and WOB (L2 write-back victims).",
+        "SampleAfterValue": "200003",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "All accesses to L2 cache [This event is alias to L2_RQSTS.REFERENCES]",
         "Counter": "0,1,2,3",
@@ -885,6 +903,33 @@
         "UMask": "0x20",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of load ops retired that hit in the L3 cache in which a snoop was required and modified data was forwarded.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd4",
+        "EventName": "MEM_LOAD_UOPS_MISC_RETIRED.L3_HIT_SNOOP_HITM",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of load ops retired that hit in the L3 cache in which a snoop was required and no data was forwarded.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd4",
+        "EventName": "MEM_LOAD_UOPS_MISC_RETIRED.L3_HIT_SNOOP_NO_FWD",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of load ops retired that hit in the L3 cache in which a snoop was required and non-modified data was forwarded.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd4",
+        "EventName": "MEM_LOAD_UOPS_MISC_RETIRED.L3_HIT_SNOOP_WITH_FWD",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x10",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of load ops retired that miss the L3 cache and hit in DRAM",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -993,6 +1038,16 @@
         "UMask": "0x1",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of memory uops retired.  A single uop that performs both a load AND a store will be counted as 1, not 2 (e.g. ADD [mem], CONST)",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "Data_LA": "1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.ALL",
+        "SampleAfterValue": "200003",
+        "UMask": "0x83",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of load ops retired.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/floating-point.json b/tools/perf/pmu-events/arch/x86/meteorlake/floating-point.json
index 28dc5e06ee31..1ccbd54904c5 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/floating-point.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/floating-point.json
@@ -19,6 +19,24 @@
         "UMask": "0x1",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of active floating point dividers per cycle in the loop stage.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xcd",
+        "EventName": "ARITH.FPDIV_OCCUPANCY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of floating point divider uops executed per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xcd",
+        "EventName": "ARITH.FPDIV_UOPS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts all microcode FP assists.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -274,6 +292,51 @@
         "UMask": "0x2",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of uops executed on all floating point ports.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb2",
+        "EventName": "FP_VINT_UOPS_EXECUTED.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xf",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on floating point and vector integer port 0.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb2",
+        "EventName": "FP_VINT_UOPS_EXECUTED.P0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on floating point and vector integer port 1.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb2",
+        "EventName": "FP_VINT_UOPS_EXECUTED.P1",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on floating point and vector integer port 2.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb2",
+        "EventName": "FP_VINT_UOPS_EXECUTED.P2",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on floating point and vector integer port 0, 1, 2.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb2",
+        "EventName": "FP_VINT_UOPS_EXECUTED.PRIMARY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xe",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of uops executed on floating point and vector integer store data port.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/memory.json b/tools/perf/pmu-events/arch/x86/meteorlake/memory.json
index f0cbeda4d5ca..7cdd5cb39009 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/memory.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/memory.json
@@ -19,6 +19,15 @@
         "UMask": "0x6",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to any number of reasons, including an L1 miss, WCB full, pagewalk, store address block or store data block.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.ANY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x7f",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to any number of reasons, including an L1 miss, WCB full, pagewalk, store address block or store data block, on a load that retires.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -37,6 +46,15 @@
         "UMask": "0xf4",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to a DL1 miss.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.L1_MISS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to a DL1 miss.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -46,6 +64,16 @@
         "UMask": "0x81",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to other block cases.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.OTHER",
+        "PublicDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to other block cases such as pipeline conflicts, fences, etc.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to other block cases.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -56,6 +84,15 @@
         "UMask": "0xc0",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to a pagewalk.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.PGWALK",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to a pagewalk.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -65,6 +102,15 @@
         "UMask": "0xa0",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to a store address match.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.ST_ADDR",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to a store address match.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -74,6 +120,24 @@
         "UMask": "0x84",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to request buffers full or lock in progress.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.WCB_FULL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to request buffers full or lock in progress.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.WCB_FULL_AT_RET",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x82",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of machine clears due to memory ordering caused by a snoop from an external agent. Does not count internally generated machine clears such as those due to memory disambiguation.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json b/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
index 7662846745bd..09e1147c4733 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
@@ -20,6 +20,16 @@
         "UMask": "0x9",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of cycles when any of the integer dividers are active.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "CounterMask": "1",
+        "EventCode": "0xcd",
+        "EventName": "ARITH.IDIV_ACTIVE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "This event counts the cycles the integer divider is busy.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -30,6 +40,24 @@
         "UMask": "0x8",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of active integer dividers per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xcd",
+        "EventName": "ARITH.IDIV_OCCUPANCY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of integer divider uops executed per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xcd",
+        "EventName": "ARITH.IDIV_UOPS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Number of occurrences where a microcode assist is invoked by hardware.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -255,6 +283,16 @@
         "UMask": "0xdf",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of taken branch instructions retired.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "MTL013",
+        "EventCode": "0xc4",
+        "EventName": "BR_INST_RETIRED.TAKEN",
+        "SampleAfterValue": "200003",
+        "UMask": "0x80",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the total number of mispredicted branch instructions retired for all branch types.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -929,6 +967,89 @@
         "UMask": "0x10",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of uops executed on all Integer ports.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xff",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on a load port.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.LD",
+        "PublicDescription": "Counts the number of uops executed on a load port.  This event counts for integer uops even if the destination is FP/vector",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on integer port 0.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.P0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on integer port 1.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.P1",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x10",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on integer port 2.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.P2",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on integer port 3.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.P3",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on integer port  0,1, 2, 3.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.PRIMARY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x78",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on a Store address port.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.STA",
+        "PublicDescription": "Counts the number of uops executed on a Store address port. This event counts integer uops even if the data source is FP/vector",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of uops executed on an integer store data and jump port.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xb3",
+        "EventName": "INT_UOPS_EXECUTED.STD_JMP",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "INT_VEC_RETIRED.128BIT",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -1131,6 +1252,24 @@
         "UMask": "0x8",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of machine clears that flush the pipeline and restart the machine without the use of microcode.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc3",
+        "EventName": "MACHINE_CLEARS.FAST",
+        "SampleAfterValue": "20003",
+        "UMask": "0x10",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of virtual traps taken.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc3",
+        "EventName": "MACHINE_CLEARS.FPC_VIRTUAL_TRAP",
+        "SampleAfterValue": "20003",
+        "UMask": "0x40",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of machines clears due to memory renaming.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -1303,6 +1442,25 @@
         "UMask": "0x4",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number issue slots not consumed  due to a  color request for an FCW or MXCSR control register when all 4 colors (copies) are already in use.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x75",
+        "EventName": "SERIALIZATION.COLOR_STALLS",
+        "SampleAfterValue": "200003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of issue slots not consumed by the backend due to a micro-sequencer (MS) scoreboard, which stalls the front-end from issuing from the UROM until a specified older uop retires.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x75",
+        "EventName": "SERIALIZATION.NON_C01_MS_SCB",
+        "PublicDescription": "Counts the number of issue slots not consumed by the backend due to a micro-sequencer (MS) scoreboard, which stalls the front-end from issuing from the UROM until a specified older uop retires. The most commonly executed instruction with an MS scoreboard is PAUSE.",
+        "SampleAfterValue": "200003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "This event counts a subset of the Topdown Slots event that were not consumed by the back-end pipeline due to lack of back-end resources, as a result of memory subsystem delays, execution units limitations, or other conditions.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/virtual-memory.json b/tools/perf/pmu-events/arch/x86/meteorlake/virtual-memory.json
index 305b96b26a4e..04396c7b3e08 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/virtual-memory.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/virtual-memory.json
@@ -356,6 +356,15 @@
         "UMask": "0x10",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer is stalled due to a DTLB miss",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.DTLB_MISS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x10",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to a DTLB miss.",
         "Counter": "0,1,2,3,4,5,6,7",
-- 
2.54.0.823.g6e5bcc1fc9-goog