[v2] perf vendor events riscv: Add CVA6 JSON file

[PATCH v2] perf vendor events riscv: Add CVA6 JSON file

Posted by Manuel Hernández | OPENCHIP 2 weeks, 1 day ago

From: Manuel Hernández Méndez <manuel.hernandez@openchip.com>

This patch add the CVA6 JSON file.

Signed-off-by: Manuel Hernández Méndez <manuel.hernandez@openchip.com>
---
Hi Ian, thanks for the review.

This is the second version of the patch, following a review of the
CVA6 core PMU implementation.

Thanks!
Manuel
---
Changes in v2:
- Added a clarification about retired instructions in name and
  description fields
- Moved and renamed LOAD_ACCESSES and STORE_ACCESSES events from
  memory.json to instructions.json
- Moved INSTRUCTION_FETCH_EMPTY event from instructions.json to 
  microarch.json
- Changed mode from 755 to 644 in firmware.json file

v1:
https://lore.kernel.org/all/20251202180155.11147-1-manuel.hernandez@openchip.com/
---
 tools/perf/pmu-events/arch/riscv/mapfile.csv  |  1 +
 .../arch/riscv/openhwgroup/cva6/firmware.json | 68 +++++++++++++++++++
 .../riscv/openhwgroup/cva6/instructions.json  | 47 +++++++++++++
 .../arch/riscv/openhwgroup/cva6/memory.json   | 42 ++++++++++++
 .../riscv/openhwgroup/cva6/microarch.json     | 27 ++++++++
 5 files changed, 185 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
 create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json

diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
index d5eea7f9aa9a..87cfb0e0849f 100644
--- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
+++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
@@ -21,5 +21,6 @@
 0x489-0x8000000000000[1-6]08-0x[9b][[:xdigit:]]+,v1,sifive/p650,core
 0x5b7-0x0-0x0,v1,thead/c900-legacy,core
 0x5b7-0x80000000090c0d00-0x2047000,v1,thead/c900-legacy,core
+0x602-0x3-0x0,v1,openhwgroup/cva6,core
 0x67e-0x80000000db0000[89]0-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
 0x31e-0x8000000000008a45-0x[[:xdigit:]]+,v1,andes/ax45,core
diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
new file mode 100644
index 000000000000..7149caec4f80
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
@@ -0,0 +1,68 @@
+[
+  {
+    "ArchStdEvent": "FW_MISALIGNED_LOAD"
+  },
+  {
+    "ArchStdEvent": "FW_MISALIGNED_STORE"
+  },
+  {
+    "ArchStdEvent": "FW_ACCESS_LOAD"
+  },
+  {
+    "ArchStdEvent": "FW_ACCESS_STORE"
+  },
+  {
+    "ArchStdEvent": "FW_ILLEGAL_INSN"
+  },
+  {
+    "ArchStdEvent": "FW_SET_TIMER"
+  },
+  {
+    "ArchStdEvent": "FW_IPI_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_IPI_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_FENCE_I_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_FENCE_I_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_SFENCE_VMA_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_SFENCE_VMA_ASID_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
+  },
+  {
+    "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
new file mode 100644
index 000000000000..c38f6c97cf1f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
@@ -0,0 +1,47 @@
+[
+  {
+    "EventName": "LOAD_INSTRUCTIONS_RETIRED",
+    "EventCode": "0x5",
+    "BriefDescription": "number of data memory load instructions retired"
+  },
+  {
+    "EventName": "STORE_INSTRUCTIONS_RETIRED",
+    "EventCode": "0x6",
+    "BriefDescription": "number of data memory store instructions retired"
+  },
+  {
+    "EventName": "EXCEPTIONS",
+    "EventCode": "0x7",
+    "BriefDescription": "valid exceptions encountered"
+  },
+  {
+    "EventName": "EXCEPTION_HANDLER_RETURNS",
+    "EventCode": "0x8",
+    "BriefDescription": "return from an exception"
+  },
+  {
+    "EventName": "BRANCH_INSTRUCTIONS_RETIRED",
+    "EventCode": "0x9",
+    "BriefDescription": "number of branch instructions encountered retired"
+  },
+  {
+    "EventName": "CALL_INSTRUCTIONS_RETIRED",
+    "EventCode": "0xC",
+    "BriefDescription": "number of call instructions retired"
+  },
+  {
+    "EventName": "RETURN_INSTRUCTIONS_RETIRED",
+    "EventCode": "0xD",
+    "BriefDescription": "number of return instructions retired"
+  },
+  {
+    "EventName": "INTEGER_INSTRUCTIONS_RETIRED",
+    "EventCode": "0x14",
+    "BriefDescription": "number of integer instructions retired"
+  },
+  {
+    "EventName": "FLOATING_POINT_INSTRUCTIONS_RETIRED",
+    "EventCode": "0x15",
+    "BriefDescription": "number of floating point instructions retired"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
new file mode 100644
index 000000000000..c4f376a0ee4e
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
@@ -0,0 +1,42 @@
+[
+  {
+    "EventName": "L1_I_CACHE_MISSES",
+    "EventCode": "0x1",
+    "BriefDescription": "number of misses in L1 I-Cache"
+  },
+  {
+    "EventName": "L1_D_CACHE_MISSES",
+    "EventCode": "0x2",
+    "BriefDescription": "number of misses in L1 D-Cache"
+  },
+  {
+    "EventName": "ITLB_MISSES",
+    "EventCode": "0x3",
+    "BriefDescription": "number of misses in ITLB"
+  },
+  {
+    "EventName": "DTLB_MISSES",
+    "EventCode": "0x4",
+    "BriefDescription": "number of misses in DTLB"
+  },
+  {
+    "EventName": "L1_I_CACHE_ACCESSES",
+    "EventCode": "0x10",
+    "BriefDescription": "number of accesses to instruction cache"
+  },
+  {
+    "EventName": "L1_D_CACHE_ACCESSES",
+    "EventCode": "0x11",
+    "BriefDescription": "number of accesses to data cache"
+  },
+  {
+    "EventName": "L1_CACHE_LINE_EVICTION",
+    "EventCode": "0x12",
+    "BriefDescription": "number of data cache line eviction"
+  },
+  {
+    "EventName": "ITLB_FLUSH",
+    "EventCode": "0x13",
+    "BriefDescription": "number of ITLB flushes"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json
new file mode 100644
index 000000000000..104e6e8197da
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json
@@ -0,0 +1,27 @@
+[
+  {
+    "EventName": "BRANCH_MISPREDICTS",
+    "EventCode": "0xA",
+    "BriefDescription": "number of branch mispredictions"
+  },
+  {
+    "EventName": "BRANCH_EXCEPTIONS",
+    "EventCode": "0xB",
+    "BriefDescription": "number of valid branch exceptions"
+  },
+  {
+    "EventName": "MSB_FULL",
+    "EventCode": "0xE",
+    "BriefDescription": "scoreboard is full"
+  },
+  {
+    "EventName": "INSTRUCTION_FETCH_EMPTY",
+    "EventCode": "0xF",
+    "BriefDescription": "number of invalid instructions in IF stage"
+  },
+  {
+    "EventName": "PIPELINE_STALL",
+    "EventCode": "0x16",
+    "BriefDescription": "number of cycles the pipeline is stalled during read operands"
+  }
+]
-- 
2.34.1

Re: [PATCH v2] perf vendor events riscv: Add CVA6 JSON file

Posted by Ian Rogers 2 weeks, 1 day ago

On Thu, Dec 4, 2025 at 8:40 AM Manuel Hernández | OPENCHIP
<manuel.hernandez@openchip.com> wrote:
>
> From: Manuel Hernández Méndez <manuel.hernandez@openchip.com>
>
> This patch add the CVA6 JSON file.
>
> Signed-off-by: Manuel Hernández Méndez <manuel.hernandez@openchip.com>

Reviewed-by: Ian Rogers <irogers@google.com>

Thanks,
Ian

> ---
> Hi Ian, thanks for the review.
>
> This is the second version of the patch, following a review of the
> CVA6 core PMU implementation.
>
> Thanks!
> Manuel
> ---
> Changes in v2:
> - Added a clarification about retired instructions in name and
>   description fields
> - Moved and renamed LOAD_ACCESSES and STORE_ACCESSES events from
>   memory.json to instructions.json
> - Moved INSTRUCTION_FETCH_EMPTY event from instructions.json to
>   microarch.json
> - Changed mode from 755 to 644 in firmware.json file
>
> v1:
> https://lore.kernel.org/all/20251202180155.11147-1-manuel.hernandez@openchip.com/
> ---
>  tools/perf/pmu-events/arch/riscv/mapfile.csv  |  1 +
>  .../arch/riscv/openhwgroup/cva6/firmware.json | 68 +++++++++++++++++++
>  .../riscv/openhwgroup/cva6/instructions.json  | 47 +++++++++++++
>  .../arch/riscv/openhwgroup/cva6/memory.json   | 42 ++++++++++++
>  .../riscv/openhwgroup/cva6/microarch.json     | 27 ++++++++
>  5 files changed, 185 insertions(+)
>  create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
>  create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
>  create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
>  create mode 100644 tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json
>
> diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> index d5eea7f9aa9a..87cfb0e0849f 100644
> --- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
> +++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
> @@ -21,5 +21,6 @@
>  0x489-0x8000000000000[1-6]08-0x[9b][[:xdigit:]]+,v1,sifive/p650,core
>  0x5b7-0x0-0x0,v1,thead/c900-legacy,core
>  0x5b7-0x80000000090c0d00-0x2047000,v1,thead/c900-legacy,core
> +0x602-0x3-0x0,v1,openhwgroup/cva6,core
>  0x67e-0x80000000db0000[89]0-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
>  0x31e-0x8000000000008a45-0x[[:xdigit:]]+,v1,andes/ax45,core
> diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
> new file mode 100644
> index 000000000000..7149caec4f80
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/firmware.json
> @@ -0,0 +1,68 @@
> +[
> +  {
> +    "ArchStdEvent": "FW_MISALIGNED_LOAD"
> +  },
> +  {
> +    "ArchStdEvent": "FW_MISALIGNED_STORE"
> +  },
> +  {
> +    "ArchStdEvent": "FW_ACCESS_LOAD"
> +  },
> +  {
> +    "ArchStdEvent": "FW_ACCESS_STORE"
> +  },
> +  {
> +    "ArchStdEvent": "FW_ILLEGAL_INSN"
> +  },
> +  {
> +    "ArchStdEvent": "FW_SET_TIMER"
> +  },
> +  {
> +    "ArchStdEvent": "FW_IPI_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_IPI_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_FENCE_I_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_FENCE_I_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_SFENCE_VMA_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_SFENCE_VMA_ASID_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
> +  },
> +  {
> +    "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
> +  }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
> new file mode 100644
> index 000000000000..c38f6c97cf1f
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/instructions.json
> @@ -0,0 +1,47 @@
> +[
> +  {
> +    "EventName": "LOAD_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0x5",
> +    "BriefDescription": "number of data memory load instructions retired"
> +  },
> +  {
> +    "EventName": "STORE_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0x6",
> +    "BriefDescription": "number of data memory store instructions retired"
> +  },
> +  {
> +    "EventName": "EXCEPTIONS",
> +    "EventCode": "0x7",
> +    "BriefDescription": "valid exceptions encountered"
> +  },
> +  {
> +    "EventName": "EXCEPTION_HANDLER_RETURNS",
> +    "EventCode": "0x8",
> +    "BriefDescription": "return from an exception"
> +  },
> +  {
> +    "EventName": "BRANCH_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0x9",
> +    "BriefDescription": "number of branch instructions encountered retired"
> +  },
> +  {
> +    "EventName": "CALL_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0xC",
> +    "BriefDescription": "number of call instructions retired"
> +  },
> +  {
> +    "EventName": "RETURN_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0xD",
> +    "BriefDescription": "number of return instructions retired"
> +  },
> +  {
> +    "EventName": "INTEGER_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0x14",
> +    "BriefDescription": "number of integer instructions retired"
> +  },
> +  {
> +    "EventName": "FLOATING_POINT_INSTRUCTIONS_RETIRED",
> +    "EventCode": "0x15",
> +    "BriefDescription": "number of floating point instructions retired"
> +  }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
> new file mode 100644
> index 000000000000..c4f376a0ee4e
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/memory.json
> @@ -0,0 +1,42 @@
> +[
> +  {
> +    "EventName": "L1_I_CACHE_MISSES",
> +    "EventCode": "0x1",
> +    "BriefDescription": "number of misses in L1 I-Cache"
> +  },
> +  {
> +    "EventName": "L1_D_CACHE_MISSES",
> +    "EventCode": "0x2",
> +    "BriefDescription": "number of misses in L1 D-Cache"
> +  },
> +  {
> +    "EventName": "ITLB_MISSES",
> +    "EventCode": "0x3",
> +    "BriefDescription": "number of misses in ITLB"
> +  },
> +  {
> +    "EventName": "DTLB_MISSES",
> +    "EventCode": "0x4",
> +    "BriefDescription": "number of misses in DTLB"
> +  },
> +  {
> +    "EventName": "L1_I_CACHE_ACCESSES",
> +    "EventCode": "0x10",
> +    "BriefDescription": "number of accesses to instruction cache"
> +  },
> +  {
> +    "EventName": "L1_D_CACHE_ACCESSES",
> +    "EventCode": "0x11",
> +    "BriefDescription": "number of accesses to data cache"
> +  },
> +  {
> +    "EventName": "L1_CACHE_LINE_EVICTION",
> +    "EventCode": "0x12",
> +    "BriefDescription": "number of data cache line eviction"
> +  },
> +  {
> +    "EventName": "ITLB_FLUSH",
> +    "EventCode": "0x13",
> +    "BriefDescription": "number of ITLB flushes"
> +  }
> +]
> diff --git a/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json
> new file mode 100644
> index 000000000000..104e6e8197da
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/riscv/openhwgroup/cva6/microarch.json
> @@ -0,0 +1,27 @@
> +[
> +  {
> +    "EventName": "BRANCH_MISPREDICTS",
> +    "EventCode": "0xA",
> +    "BriefDescription": "number of branch mispredictions"
> +  },
> +  {
> +    "EventName": "BRANCH_EXCEPTIONS",
> +    "EventCode": "0xB",
> +    "BriefDescription": "number of valid branch exceptions"
> +  },
> +  {
> +    "EventName": "MSB_FULL",
> +    "EventCode": "0xE",
> +    "BriefDescription": "scoreboard is full"
> +  },
> +  {
> +    "EventName": "INSTRUCTION_FETCH_EMPTY",
> +    "EventCode": "0xF",
> +    "BriefDescription": "number of invalid instructions in IF stage"
> +  },
> +  {
> +    "EventName": "PIPELINE_STALL",
> +    "EventCode": "0x16",
> +    "BriefDescription": "number of cycles the pipeline is stalled during read operands"
> +  }
> +]
> --
> 2.34.1
>