[v2] perf vendor events riscv: add T-HEAD C920V2 JSON support

[PATCH v2] perf vendor events riscv: add T-HEAD C920V2 JSON support

Posted by Inochi Amaoto 2 months ago

T-HEAD C920 has a V2 iteration, which supports Sscompmf. The V2
iteration supports the same perf events as V1.

Reuse T-HEAD c900-legacy JSON file for T-HEAD C920V2.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
Changes from v1:
1. Update comment and add missing CPU version.
---
 tools/perf/pmu-events/arch/riscv/mapfile.csv | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
index 0a7e7dcc81be..d5eea7f9aa9a 100644
--- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
+++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
@@ -20,5 +20,6 @@
 0x489-0x8000000000000008-0x[[:xdigit:]]+,v1,sifive/p550,core
 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
 0x67e-0x80000000db0000[89]0-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
 0x31e-0x8000000000008a45-0x[[:xdigit:]]+,v1,andes/ax45,core
--
2.51.0

Re: [PATCH v2] perf vendor events riscv: add T-HEAD C920V2 JSON support

Posted by Namhyung Kim 3 weeks ago

On Tue, 14 Oct 2025 09:48:29 +0800, Inochi Amaoto wrote:
> T-HEAD C920 has a V2 iteration, which supports Sscompmf. The V2
> iteration supports the same perf events as V1.
> 
> Reuse T-HEAD c900-legacy JSON file for T-HEAD C920V2.
> 
> 
Applied to perf-tools-next, thanks!

Best regards,
Namhyung

Re: [PATCH v2] perf vendor events riscv: add T-HEAD C920V2 JSON support

Posted by Paul Walmsley 3 weeks, 2 days ago

Hello tools/perf maintainers,

On Tue, 14 Oct 2025, Inochi Amaoto wrote:

> T-HEAD C920 has a V2 iteration, which supports Sscompmf. The V2
> iteration supports the same perf events as V1.
> 
> Reuse T-HEAD c900-legacy JSON file for T-HEAD C920V2.
> 
> Signed-off-by: Inochi Amaoto <inochiama@gmail.com>

Would you like to take this one, or would you prefer that we take it 
through arch/riscv ?

If it's needed:

Acked-by: Paul Walmsley <pjw@kernel.org>

- Paul

Re: [PATCH v2] perf vendor events riscv: add T-HEAD C920V2 JSON support

Posted by Namhyung Kim 3 weeks, 1 day ago

Hello,

On Tue, Nov 25, 2025 at 05:52:10PM -0700, Paul Walmsley wrote:
> Hello tools/perf maintainers,
> 
> On Tue, 14 Oct 2025, Inochi Amaoto wrote:
> 
> > T-HEAD C920 has a V2 iteration, which supports Sscompmf. The V2
> > iteration supports the same perf events as V1.
> > 
> > Reuse T-HEAD c900-legacy JSON file for T-HEAD C920V2.
> > 
> > Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
> 
> Would you like to take this one, or would you prefer that we take it 
> through arch/riscv ?
> 
> If it's needed:
> 
> Acked-by: Paul Walmsley <pjw@kernel.org>

I'll pick it up to perf-tools-next, thanks!
Namhyung