Re: [PATCH v4 2/2] perf vendor events hygon: Add Hygon Data Fabric PMU events and metrics

Ian Rogers <[email protected]> Mon, 17 Aug 2026 21:28:58 -0700
Newsgroups	org.kernel.vger.linux-perf-users,org.kernel.vger.linux-kernel
Message-ID	<CAP-5=fUWh_1WnMuGV7KO2DB1xdzfxuTuE1KG_e-KS+nqB3t=VA@mail.gmail.com>
On Mon, Aug 17, 2026 at 8:12 PM Qi Liu <[email protected]> wrote:
> Hi Ian，
>
> Thanks for your reply:)
>
> On 8/18/2026 6:12 AM, Ian Rogers wrote:
> > On Tue, Aug 4, 2026 at 12:00 AM Qi Liu <[email protected]> wrote:
> >>
> >> Add perf JSON event definitions and metrics for the Hygon Data Fabric (DF)
> >> uncore PMU.
> >>
> >> Signed-off-by: Qi Liu <[email protected]>
> >> ---
> >>   tools/perf/pmu-events/Build                   |   2 +-
> >>   .../arch/x86/hygonm1/data-fabric.json         |  87 ++++++++++
> >>   .../arch/x86/hygonm4/data-fabric.json         | 122 ++++++++++++++
> >>   .../arch/x86/hygonm6/data-fabric.json         | 154 ++++++++++++++++++
> >>   tools/perf/pmu-events/arch/x86/mapfile.csv    |   3 +
> >>   tools/perf/pmu-events/jevents.py              |   2 +
> >>   6 files changed, 369 insertions(+), 1 deletion(-)
> >>   create mode 100644 tools/perf/pmu-events/arch/x86/hygonm1/data-fabric.json
> >>   create mode 100644 tools/perf/pmu-events/arch/x86/hygonm4/data-fabric.json
> >>   create mode 100644 tools/perf/pmu-events/arch/x86/hygonm6/data-fabric.json
> >>
> >> diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
> >> index 372773b998e4..79a9b4cad202 100644
> >> --- a/tools/perf/pmu-events/Build
> >> +++ b/tools/perf/pmu-events/Build
> >> @@ -95,7 +95,7 @@ endif
> >>
> >>   ifeq ($(JEVENTS_ARCH),$(filter $(JEVENTS_ARCH),x86 all))
> >>   # Generate Intel Json
> >> -INTELS := $(shell ls -d pmu-events/arch/x86/*|grep -v amdzen|grep -v mapfile.csv)
> >> +INTELS := $(shell ls -d pmu-events/arch/x86/*|grep -v amdzen|grep -v hygon|grep -v mapfile.csv)
> >>   INTEL_METRICS = $(foreach x,$(INTELS),$(OUTPUT)$(x)/extra-metrics.json)
> >>   INTEL_METRICGROUPS = $(foreach x,$(INTELS),$(OUTPUT)$(x)/extra-metricgroups.json)
> >>   GEN_JSON += $(INTEL_METRICS) $(INTEL_METRICGROUPS)
> >> diff --git a/tools/perf/pmu-events/arch/x86/hygonm1/data-fabric.json b/tools/perf/pmu-events/arch/x86/hygonm1/data-fabric.json
> >> new file mode 100644
> >> index 000000000000..99c243bd9ba0
> >> --- /dev/null
> >> +++ b/tools/perf/pmu-events/arch/x86/hygonm1/data-fabric.json
> >> @@ -0,0 +1,87 @@
> >> +[
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS0",
> >
> > Does "Data (64B)" mean that each count should be scaled by 64 and the
> > units are bytes? In which case adding:
> > "ScaleUnit": "64Bytes",
> > Would cause the count to be multiplied by 64 in the perf stat output
> > and the unit Bytes to be added.
> >
> Thank you for pointing this out. Yes, for these CPU memory-request events, Data
> (64B) means that each count represents a 64-byte data unit. I will add
> "ScaleUnit": "64Bytes" so that perf stat reports the scaled value in Bytes.
>
> The I/O request events are different: each request may carry either 32B or 64B,
> so I will keep those unscaled and retain the separate minimum/maximum bandwidth
> metrics.

Sounds good to me. Fwiw, in other drivers I've scaled by 64 and then
when the bandwidth is below expectations the explanation are 32B
requests.

> > Would it be possible to define terms like CS0?
> Thank you. I will replace uses such as CS0 with Coherent Slave 0 (CS0) in the
> event descriptions.

Thanks for adding the definition! The Linux coding style advocates
against adding new usage of the term slave:
https://www.kernel.org/doc/Documentation/process/coding-style.rst
Maybe subordinate to keep the initials the same.

> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS0",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "MetricName": "cpu_memory_bandwidth",
> >> +    "MetricExpr": "(cpu_read_requests_cs_0 + cpu_read_requests_cs_1 + cpu_write_requests_cs_0 + cpu_write_requests_cs_1) * 64 / (duration_time * 1e6)",
> >> +    "BriefDescription": "Total CPU memory access bandwidth",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_max_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_write_requests_cs_0 + io_write_requests_cs_1) * 64 / (duration_time * 1e6)",
> >> +    "BriefDescription": "Maximum inbound I/O memory access bandwidth (upper bound, assuming 64B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_min_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_write_requests_cs_0 + io_write_requests_cs_1) * 32 / (duration_time * 1e6)",
> >> +    "BriefDescription": "Minimum inbound I/O memory access bandwidth (lower bound, assuming 32B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  }
> >> +]
> >> diff --git a/tools/perf/pmu-events/arch/x86/hygonm4/data-fabric.json b/tools/perf/pmu-events/arch/x86/hygonm4/data-fabric.json
> >> new file mode 100644
> >> index 000000000000..f32dcea7061c
> >> --- /dev/null
> >> +++ b/tools/perf/pmu-events/arch/x86/hygonm4/data-fabric.json
> >> @@ -0,0 +1,122 @@
> >> +[
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS0",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_2",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS2",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS0",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_2",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS2",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_2",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS2",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_2",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS2",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "MetricName": "cpu_memory_bandwidth",
> >> +    "MetricExpr": "(cpu_read_requests_cs_0 + cpu_read_requests_cs_1 + cpu_read_requests_cs_2 + cpu_write_requests_cs_0 + cpu_write_requests_cs_1 + cpu_write_requests_cs_2) * 64 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Total CPU memory access bandwidth",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_max_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_read_requests_cs_2 + io_write_requests_cs_0 + io_write_requests_cs_1 + io_write_requests_cs_2) * 64 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Maximum inbound I/O memory access bandwidth (upper bound, assuming 64B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_min_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_read_requests_cs_2 + io_write_requests_cs_0 + io_write_requests_cs_1 + io_write_requests_cs_2) * 32 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Minimum inbound I/O memory access bandwidth (lower bound, assuming 32B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  }
> >> +]
> >> diff --git a/tools/perf/pmu-events/arch/x86/hygonm6/data-fabric.json b/tools/perf/pmu-events/arch/x86/hygonm6/data-fabric.json
> >> new file mode 100644
> >> index 000000000000..bff5c0959d82
> >> --- /dev/null
> >> +++ b/tools/perf/pmu-events/arch/x86/hygonm6/data-fabric.json
> >> @@ -0,0 +1,154 @@
> >> +[
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS0",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_2",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS2",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_read_requests_cs_3",
> >> +    "BriefDescription": "The number of CPU read requests to memory: Data (64B): CS3",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x07",
> >> +    "ConstId": "0x3",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_0",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS0",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_1",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS1",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_2",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS2",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "cpu_write_requests_cs_3",
> >> +    "BriefDescription": "The number of CPU write requests to memory: Data (64B): CS3",
> >> +    "EventCode": "0x2",
> >> +    "UMask": "0x08",
> >> +    "ConstId": "0x3",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_2",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS2",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_read_requests_cs_3",
> >> +    "BriefDescription": "The number of inbound I/O read requests to memory: Data (32B or 64B): CS3",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x0F",
> >> +    "ConstId": "0x3",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_0",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS0",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x0",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_1",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS1",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x1",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_2",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS2",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x2",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "EventName": "io_write_requests_cs_3",
> >> +    "BriefDescription": "The number of inbound I/O write requests to memory: Data (32B or 64B): CS3",
> >> +    "EventCode": "0x3",
> >> +    "UMask": "0x70",
> >> +    "ConstId": "0x3",
> >> +    "Unit": "HYGON_DF"
> >> +  },
> >> +  {
> >> +    "MetricName": "cpu_memory_bandwidth",
> >> +    "MetricExpr": "(cpu_read_requests_cs_0 + cpu_read_requests_cs_1 + cpu_read_requests_cs_2 + cpu_read_requests_cs_3 + cpu_write_requests_cs_0 + cpu_write_requests_cs_1 + cpu_write_requests_cs_2 + cpu_write_requests_cs_3) * 64 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Total CPU memory access bandwidth",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_max_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_read_requests_cs_2 + io_read_requests_cs_3 + io_write_requests_cs_0 + io_write_requests_cs_1 + io_write_requests_cs_2 + io_write_requests_cs_3) * 64 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Maximum inbound I/O memory access bandwidth (upper bound, assuming 64B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  },
> >> +  {
> >> +    "MetricName": "io_memory_min_bandwidth",
> >> +    "MetricExpr": "(io_read_requests_cs_0 + io_read_requests_cs_1 + io_read_requests_cs_2 + io_read_requests_cs_3 + io_write_requests_cs_0 + io_write_requests_cs_1 + io_write_requests_cs_2 + io_write_requests_cs_3) * 32 / (duration_time * 1e6)",
> >> +    "MetricConstraint": "NO_GROUP_EVENTS",
> >> +    "BriefDescription": "Minimum inbound I/O memory access bandwidth (lower bound, assuming 32B per request. Actual inbound I/O requests may be 32B or 64B)",
> >> +    "MetricGroup": "DF_Memory_BW",
> >> +    "ScaleUnit": "1MB/s"
> >> +  }
> >> +]
> >> diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
> >> index 50a403b429b1..ba17117245d1 100644
> >> --- a/tools/perf/pmu-events/arch/x86/mapfile.csv
> >> +++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
> >> @@ -45,3 +45,6 @@ AuthenticAMD-25-([245][[:xdigit:]]|[[:xdigit:]]),v1,amdzen3,core
> >>   AuthenticAMD-25-[[:xdigit:]]+,v1,amdzen4,core
> >>   AuthenticAMD-26-([12467][[:xdigit:]]|[[:xdigit:]]),v1,amdzen5,core
> >>   AuthenticAMD-26-[[:xdigit:]]+,v1,amdzen6,core
> >> +HygonGenuine-24-[0123],v1,hygonm1,core
> >> +HygonGenuine-24-[45],v1,hygonm4,core
> >> +HygonGenuine-24-(1[012345678]|[6789ABCDEF]),v1,hygonm6,core
> >> diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
> >> index 376dc2d24162..63ae3a763a4f 100755
> >> --- a/tools/perf/pmu-events/jevents.py
> >> +++ b/tools/perf/pmu-events/jevents.py
> >> @@ -294,6 +294,7 @@ class JsonEvent:
> >>             'L3PMC': 'amd_l3',
> >>             'DFPMC': 'amd_df',
> >>             'UMCPMC': 'amd_umc',
> >> +          'HYGON_DF': 'hygon_df',
> >>             'cpu_core': 'cpu_core',
> >>             'cpu_atom': 'cpu_atom',
> >>             'ali_drw': 'ali_drw',
> >> @@ -390,6 +391,7 @@ class JsonEvent:
> >>           ('Invert', 'inv='),
> >>           ('SampleAfterValue', 'period='),
> >>           ('UMask', 'umask='),
> >> +        ('ConstId', 'constid='),
> >
> > Is Const a shortening of Constant? It seems a little redundant in the
> > format name. Would CsId be more intention revealing? I don't know what
> > CS means, but this at least looks a little more intuitive to me than
> > Constant :-)
> >
> Thank you for the suggestion. ConstId stands for Component Select ID. It
> identifies the selected Data Fabric component instance, and I agree that the
> current name is not particularly intuitive. I will rename it to CompId
> (Component ID) in the next revision.

Many thanks!
Ian

> Thanks,
> Qi> Thanks,
> > Ian
> >
> >>           ('NodeType', 'type='),
> >>           ('RdWrMask', 'rdwrmask='),
> >>           ('EnAllCores', 'enallcores='),
> >> --
> >> 2.34.1
> >>
> >>
> >>
> >
>
>