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[Deepin-Kernel-SIG] [linux 6.6-y] [Upstream] [Alibaba] [ARM] Support CMN700 PMU metric for Neoverse （CMN PMU metric回合6.6内核） #832

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Merged
opsiff merged 6 commits into from
Jun 2, 2025
Merged

[Deepin-Kernel-SIG] [linux 6.6-y] [Upstream] [Alibaba] [ARM] Support CMN700 PMU metric for Neoverse （CMN PMU metric回合6.6内核） #832

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401a185
perf metric: "Compat" supports regular expression matching identifiers
Sep 27, 2023
2bcf7a4
perf jevents: Support EventidCode and NodeType
Sep 27, 2023
cff9956
perf test: Make matching_pmu effective
Sep 27, 2023
f78b95c
perf test: Add pmu-event test for "Compat" and new event_field.
Sep 27, 2023
7cfb15b
perf jevents: Add support for Arm CMN PMU aliasing
Sep 27, 2023
84d7b06
perf vendor events: Add JSON metrics for Arm CMN
Sep 27, 2023
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266 changes: 266 additions & 0 deletions tools/perf/pmu-events/arch/arm64/arm/cmn/sys/cmn.json
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[
{
"EventName": "hnf_cache_miss",
"EventidCode": "0x1",
"NodeType": "0x5",
"BriefDescription": "Counts total cache misses in first lookup result (high priority).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_slc_sf_cache_access",
"EventidCode": "0x2",
"NodeType": "0x5",
"BriefDescription": "Counts number of cache accesses in first access (high priority).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_cache_fill",
"EventidCode": "0x3",
"NodeType": "0x5",
"BriefDescription": "Counts total allocations in HN SLC (all cache line allocations to SLC).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_pocq_retry",
"EventidCode": "0x4",
"NodeType": "0x5",
"BriefDescription": "Counts number of retried requests.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_pocq_reqs_recvd",
"EventidCode": "0x5",
"NodeType": "0x5",
"BriefDescription": "Counts number of requests that HN receives.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_sf_hit",
"EventidCode": "0x6",
"NodeType": "0x5",
"BriefDescription": "Counts number of SF hits.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_sf_evictions",
"EventidCode": "0x7",
"NodeType": "0x5",
"BriefDescription": "Counts number of SF eviction cache invalidations initiated.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_dir_snoops_sent",
"EventidCode": "0x8",
"NodeType": "0x5",
"BriefDescription": "Counts number of directed snoops sent (not including SF back invalidation).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_brd_snoops_sent",
"EventidCode": "0x9",
"NodeType": "0x5",
"BriefDescription": "Counts number of multicast snoops sent (not including SF back invalidation).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_slc_eviction",
"EventidCode": "0xa",
"NodeType": "0x5",
"BriefDescription": "Counts number of SLC evictions (dirty only).",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_slc_fill_invalid_way",
"EventidCode": "0xb",
"NodeType": "0x5",
"BriefDescription": "Counts number of SLC fills to an invalid way.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_mc_retries",
"EventidCode": "0xc",
"NodeType": "0x5",
"BriefDescription": "Counts number of retried transactions by the MC.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_mc_reqs",
"EventidCode": "0xd",
"NodeType": "0x5",
"BriefDescription": "Counts number of requests that are sent to MC.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hnf_qos_hh_retry",
"EventidCode": "0xe",
"NodeType": "0x5",
"BriefDescription": "Counts number of times a HighHigh priority request is protocolretried at the HN‑F.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_s0_rdata_beats",
"EventidCode": "0x1",
"NodeType": "0xa",
"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 0. This event measures the read bandwidth, including CMO responses.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_s1_rdata_beats",
"EventidCode": "0x2",
"NodeType": "0xa",
"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 1. This event measures the read bandwidth, including CMO responses.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_s2_rdata_beats",
"EventidCode": "0x3",
"NodeType": "0xa",
"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 2. This event measures the read bandwidth, including CMO responses.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_rxdat_flits",
"EventidCode": "0x4",
"NodeType": "0xa",
"BriefDescription": "Number of RXDAT flits received. This event measures the true read data bandwidth, excluding CMOs.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_txdat_flits",
"EventidCode": "0x5",
"NodeType": "0xa",
"BriefDescription": "Number of TXDAT flits dispatched. This event measures the write bandwidth.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_txreq_flits_total",
"EventidCode": "0x6",
"NodeType": "0xa",
"BriefDescription": "Number of TXREQ flits dispatched. This event measures the total request bandwidth.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "rnid_txreq_flits_retried",
"EventidCode": "0x7",
"NodeType": "0xa",
"BriefDescription": "Number of retried TXREQ flits dispatched. This event measures the retry rate.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "sbsx_txrsp_retryack",
"EventidCode": "0x4",
"NodeType": "0x7",
"BriefDescription": "Number of RXREQ flits dispatched. This event is a measure of the retry rate.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "sbsx_txdat_flitv",
"EventidCode": "0x5",
"NodeType": "0x7",
"BriefDescription": "Number of TXDAT flits dispatched from XP to SBSX. This event is a measure of the write bandwidth.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "sbsx_arvalid_no_arready",
"EventidCode": "0x21",
"NodeType": "0x7",
"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on AR channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "sbsx_awvalid_no_awready",
"EventidCode": "0x22",
"NodeType": "0x7",
"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on AW channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "sbsx_wvalid_no_wready",
"EventidCode": "0x23",
"NodeType": "0x7",
"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on W channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_txrsp_retryack",
"EventidCode": "0x2a",
"NodeType": "0x4",
"BriefDescription": "Number of RXREQ flits dispatched. This event is a measure of the retry rate.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_arvalid_no_arready",
"EventidCode": "0x2b",
"NodeType": "0x4",
"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on AR channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_arready_no_arvalid",
"EventidCode": "0x2c",
"NodeType": "0x4",
"BriefDescription": "Number of cycles the AR channel is waiting for new requests from HN-I bridge.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_awvalid_no_awready",
"EventidCode": "0x2d",
"NodeType": "0x4",
"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on AW channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_awready_no_awvalid",
"EventidCode": "0x2e",
"NodeType": "0x4",
"BriefDescription": "Number of cycles the AW channel is waiting for new requests from HN-I bridge.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_wvalid_no_wready",
"EventidCode": "0x2f",
"NodeType": "0x4",
"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on W channel.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"EventName": "hni_txdat_stall",
"EventidCode": "0x30",
"NodeType": "0x4",
"BriefDescription": "TXDAT valid but no link credit available.",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
}
]
74 changes: 74 additions & 0 deletions tools/perf/pmu-events/arch/arm64/arm/cmn/sys/metric.json
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[
{
"MetricName": "slc_miss_rate",
"BriefDescription": "The system level cache miss rate.",
"MetricGroup": "cmn",
"MetricExpr": "hnf_cache_miss / hnf_slc_sf_cache_access",
"ScaleUnit": "100%",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "hnf_message_retry_rate",
"BriefDescription": "HN-F message retry rate indicates whether a lack of credits is causing the bottlenecks.",
"MetricGroup": "cmn",
"MetricExpr": "hnf_pocq_retry / hnf_pocq_reqs_recvd",
"ScaleUnit": "100%",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "sf_hit_rate",
"BriefDescription": "Snoop filter hit rate can be used to measure the snoop filter efficiency.",
"MetricGroup": "cmn",
"MetricExpr": "hnf_sf_hit / hnf_slc_sf_cache_access",
"ScaleUnit": "100%",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "mc_message_retry_rate",
"BriefDescription": "The memory controller request retries rate indicates whether the memory controller is the bottleneck.",
"MetricGroup": "cmn",
"MetricExpr": "hnf_mc_retries / hnf_mc_reqs",
"ScaleUnit": "100%",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "rni_actual_read_bandwidth.all",
"BriefDescription": "This event measure the actual bandwidth that RN-I bridge sends to the interconnect.",
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Grammar: 'This event measure' should be 'This event measures' to match subject–verb agreement.

Suggested change
"BriefDescription": "This event measure the actual bandwidth that RN-I bridge sends to the interconnect.",
"BriefDescription": "This event measures the actual bandwidth that RN-I bridge sends to the interconnect.",

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"MetricGroup": "cmn",
"MetricExpr": "rnid_rxdat_flits * 32 / 1e6 / duration_time",
"ScaleUnit": "1MB/s",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "rni_actual_write_bandwidth.all",
"BriefDescription": "This event measures the actual write bandwidth at RN-I bridges.",
"MetricGroup": "cmn",
"MetricExpr": "rnid_txdat_flits * 32 / 1e6 / duration_time",
"ScaleUnit": "1MB/s",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "rni_retry_rate",
"BriefDescription": "RN-I bridge retry rate indicates whether the memory controller is the bottleneck.",
"MetricGroup": "cmn",
"MetricExpr": "rnid_txreq_flits_retried / rnid_txreq_flits_total",
"ScaleUnit": "100%",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
},
{
"MetricName": "sbsx_actual_write_bandwidth.all",
"BriefDescription": "sbsx actual write bandwidth.",
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[nitpick] Documentation could be more descriptive—consider adding an article and clarifying context (e.g., 'The SBSX actual write bandwidth for channel X').

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"MetricGroup": "cmn",
"MetricExpr": "sbsx_txdat_flitv * 32 / 1e6 / duration_time",
"ScaleUnit": "1MB/s",
"Unit": "arm_cmn",
"Compat": "(434|436|43c|43a).*"
}
]
8 changes: 8 additions & 0 deletions tools/perf/pmu-events/arch/test/test_soc/sys/uncore.json
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Expand Up @@ -12,5 +12,13 @@
"EventName": "sys_ccn_pmu.read_cycles",
"Unit": "sys_ccn_pmu",
"Compat": "0x01"
},
{
"BriefDescription": "Counts total cache misses in first lookup result (high priority)",
"EventidCode": "0x1",
"NodeType": "0x5",
"EventName": "sys_cmn_pmu.hnf_cache_miss",
"Unit": "sys_cmn_pmu",
"Compat": "(434|436|43c|43a).*"
}
]
8 changes: 8 additions & 0 deletions tools/perf/pmu-events/empty-pmu-events.c
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Expand Up @@ -244,6 +244,14 @@ static const struct pmu_event pmu_events__test_soc_sys[] = {
.topic = "uncore",
.pmu = "uncore_sys_ccn_pmu",
},
{
.name = "sys_cmn_pmu.hnf_cache_miss",
.event = "eventid=0x1,type=0x5",
.desc = "Counts total cache misses in first lookup result (high priority). Unit: uncore_sys_cmn_pmu ",
.compat = "(434|436|43c|43a).*",
.topic = "uncore",
.pmu = "uncore_sys_cmn_pmu",
},
{
.name = 0,
.event = 0,
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