[PATCH v4] perf vendor events riscv: add StarFive Dubhe-90 JSON file
From: Ji Sheng Teoh
Date: Tue Nov 21 2023 - 22:09:54 EST
Similar to StarFive's Dubhe-80, Dubhe-90 supports raw event id
0x00 - 0x22. Reuse Dubhe-80 firmware and common json file.
The raw events are enabled through PMU node of DT binding.
Besides raw event, add standard RISC-V firmware events to
support monitoring of firmware event.
Example of PMU DT node:
pmu {
compatible = "riscv,pmu";
riscv,raw-event-to-mhpmcounters =
/* Event ID 1-31 */
<0x00 0x00 0xFFFFFFFF 0xFFFFFFE0 0x00007FF8>,
/* Event ID 32-33 */
<0x00 0x20 0xFFFFFFFF 0xFFFFFFFE 0x00007FF8>,
/* Event ID 34 */
<0x00 0x22 0xFFFFFFFF 0xFFFFFF22 0x00007FF8>;
};
Perf stat output:
[root@user]# perf stat -a \
-e access_mmu_stlb \
-e miss_mmu_stlb \
-e access_mmu_pte_c \
-e rob_flush \
-e btb_prediction_miss \
-e itlb_miss \
-e sync_del_fetch_g \
-e icache_miss \
-e bpu_br_retire \
-e bpu_br_miss \
-e ret_ins_retire \
-e ret_ins_miss \
-- openssl speed rsa2048
Doing 2048 bits private rsa's for 10s: 39 2048 bits private RSA's in
10.03s
Doing 2048 bits public rsa's for 10s: 1469 2048 bits public RSA's in
9.47s
version: 3.0.10
built on: Tue Aug 1 13:47:24 2023 UTC
options: bn(64,64)
CPUINFO: N/A
sign verify sign/s verify/s
rsa 2048 bits 0.257179s 0.006447s 3.9 155.1
Performance counter stats for 'system wide':
3112882 access_mmu_stlb
10550 miss_mmu_stlb
18251 access_mmu_pte_c
274765 rob_flush
22470560 btb_prediction_miss
3035839 itlb_miss
643549060 sync_del_fetch_g
133013 icache_miss
62982796 bpu_br_retire
287548 bpu_br_miss
8935910 ret_ins_retire
8308 ret_ins_miss
20.656182600 seconds time elapsed
Signed-off-by: Ji Sheng Teoh <jisheng.teoh@xxxxxxxxxxxxxxxx>
Reviewed-by: Ley Foon Tan <leyfoon.tan@xxxxxxxxxxxxxxxx>
---
Changelog:
v3 -> v4:
- Reuse common and firmware json file from starfive/dubhe-80.
- Rebase against latest perf-tools-next
- Update commit message to reflect the above changes.
v2 -> v3:
- Add standard RISC-V firmware event
- Update commit message to reflect addition of standard
RISC-V firmware event.
v1 -> v2:
- Rename 'Starfive Dubhe' to 'StarFive Dubhe-90' in commit message.
- Rename 'starfive/dubhe' pmu-events folder to 'starfive/dubhe-90'
- Update MARCHID to 0x80000000db000090 in mapfile.csv
---
tools/perf/pmu-events/arch/riscv/mapfile.csv | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
index ee61e26f90cd..56b03138d46a 100644
--- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
+++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
@@ -15,4 +15,4 @@
#
#MVENDORID-MARCHID-MIMPID,Version,Filename,EventType
0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
-0x67e-0x80000000db000080-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
+0x67e-0x80000000db0000[89]0-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
--
2.25.1