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perf jevents: Add support for Arm CMN PMU aliasing
ANBZ: #8601 commit 0b4de7b upstream. Currently just add aliases for part of Arm CMN PMU events which are general and compatible for any SoC and CMN-ANY. "Compat" value "(434|436|43c|43a).*" means it is compatible with all CMN600/CMN650/CMN700/Ci700, which can be obtained from commit 7819e05 ("perf/arm-cmn: Revamp model detection"). The arm-cmn PMU events got from: [0] https://developer.arm.com/documentation/100180/0302/?lang=en [1] https://developer.arm.com/documentation/101408/0100/?lang=en [2] https://developer.arm.com/documentation/102308/0302/?lang=en [3] https://developer.arm.com/documentation/101569/0300/?lang=en Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Ian Rogers <irogers@google.com> Tested-by: Ian Rogers <irogers@google.com> Cc: James Clark <james.clark@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Shuai Xue <xueshuai@linux.alibaba.com> Cc: Zhuo Song <zhuo.song@linux.alibaba.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Link: https://lore.kernel.org/r/1695794391-34817-7-git-send-email-renyu.zj@linux.alibaba.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Jing Zhang <renyu.zj@linux.alibaba.com>
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‎tools/perf/pmu-events/arch/arm64/arm/cmn/sys/cmn.json‎

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[
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{
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"EventName": "hnf_cache_miss",
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"EventidCode": "0x1",
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"NodeType": "0x5",
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"BriefDescription": "Counts total cache misses in first lookup result (high priority).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_slc_sf_cache_access",
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"EventidCode": "0x2",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of cache accesses in first access (high priority).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_cache_fill",
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"EventidCode": "0x3",
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"NodeType": "0x5",
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"BriefDescription": "Counts total allocations in HN SLC (all cache line allocations to SLC).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_pocq_retry",
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"EventidCode": "0x4",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of retried requests.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_pocq_reqs_recvd",
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"EventidCode": "0x5",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of requests that HN receives.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_sf_hit",
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"EventidCode": "0x6",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of SF hits.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_sf_evictions",
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"EventidCode": "0x7",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of SF eviction cache invalidations initiated.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_dir_snoops_sent",
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"EventidCode": "0x8",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of directed snoops sent (not including SF back invalidation).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_brd_snoops_sent",
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"EventidCode": "0x9",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of multicast snoops sent (not including SF back invalidation).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_slc_eviction",
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"EventidCode": "0xa",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of SLC evictions (dirty only).",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_slc_fill_invalid_way",
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"EventidCode": "0xb",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of SLC fills to an invalid way.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_mc_retries",
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"EventidCode": "0xc",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of retried transactions by the MC.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_mc_reqs",
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"EventidCode": "0xd",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of requests that are sent to MC.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hnf_qos_hh_retry",
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"EventidCode": "0xe",
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"NodeType": "0x5",
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"BriefDescription": "Counts number of times a HighHigh priority request is protocolretried at the HN‑F.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_s0_rdata_beats",
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"EventidCode": "0x1",
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"NodeType": "0xa",
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"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 0. This event measures the read bandwidth, including CMO responses.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_s1_rdata_beats",
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"EventidCode": "0x2",
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"NodeType": "0xa",
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"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 1. This event measures the read bandwidth, including CMO responses.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_s2_rdata_beats",
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"EventidCode": "0x3",
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"NodeType": "0xa",
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"BriefDescription": "Number of RData beats (RVALID and RREADY) dispatched on port 2. This event measures the read bandwidth, including CMO responses.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_rxdat_flits",
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"EventidCode": "0x4",
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"NodeType": "0xa",
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"BriefDescription": "Number of RXDAT flits received. This event measures the true read data bandwidth, excluding CMOs.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_txdat_flits",
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"EventidCode": "0x5",
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"NodeType": "0xa",
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"BriefDescription": "Number of TXDAT flits dispatched. This event measures the write bandwidth.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_txreq_flits_total",
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"EventidCode": "0x6",
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"NodeType": "0xa",
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"BriefDescription": "Number of TXREQ flits dispatched. This event measures the total request bandwidth.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "rnid_txreq_flits_retried",
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"EventidCode": "0x7",
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"NodeType": "0xa",
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"BriefDescription": "Number of retried TXREQ flits dispatched. This event measures the retry rate.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "sbsx_txrsp_retryack",
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"EventidCode": "0x4",
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"NodeType": "0x7",
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"BriefDescription": "Number of RXREQ flits dispatched. This event is a measure of the retry rate.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "sbsx_txdat_flitv",
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"EventidCode": "0x5",
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"NodeType": "0x7",
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"BriefDescription": "Number of TXDAT flits dispatched from XP to SBSX. This event is a measure of the write bandwidth.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "sbsx_arvalid_no_arready",
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"EventidCode": "0x21",
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"NodeType": "0x7",
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"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on AR channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "sbsx_awvalid_no_awready",
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"EventidCode": "0x22",
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"NodeType": "0x7",
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"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on AW channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "sbsx_wvalid_no_wready",
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"EventidCode": "0x23",
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"NodeType": "0x7",
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"BriefDescription": "Number of cycles the SBSX bridge is stalled because of backpressure on W channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_txrsp_retryack",
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"EventidCode": "0x2a",
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"NodeType": "0x4",
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"BriefDescription": "Number of RXREQ flits dispatched. This event is a measure of the retry rate.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_arvalid_no_arready",
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"EventidCode": "0x2b",
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"NodeType": "0x4",
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"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on AR channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_arready_no_arvalid",
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"EventidCode": "0x2c",
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"NodeType": "0x4",
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"BriefDescription": "Number of cycles the AR channel is waiting for new requests from HN-I bridge.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_awvalid_no_awready",
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"EventidCode": "0x2d",
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"NodeType": "0x4",
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"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on AW channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_awready_no_awvalid",
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"EventidCode": "0x2e",
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"NodeType": "0x4",
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"BriefDescription": "Number of cycles the AW channel is waiting for new requests from HN-I bridge.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_wvalid_no_wready",
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"EventidCode": "0x2f",
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"NodeType": "0x4",
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"BriefDescription": "Number of cycles the HN-I bridge is stalled because of backpressure on W channel.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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},
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{
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"EventName": "hni_txdat_stall",
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"EventidCode": "0x30",
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"NodeType": "0x4",
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"BriefDescription": "TXDAT valid but no link credit available.",
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"Unit": "arm_cmn",
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"Compat": "(434|436|43c|43a).*"
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}
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]

‎tools/perf/pmu-events/jevents.py‎

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'cpu_core': 'cpu_core',
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'cpu_atom': 'cpu_atom',
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'ali_drw': 'ali_drw',
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'arm_cmn': 'arm_cmn',
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}
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return table[unit] if unit in table else f'uncore_{unit.lower()}'
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