[PATCH v2 4/4] RISC-V: Added HiFive Unmatched PMU events

João Mário Domingos joao.mario at tecnico.ulisboa.pt
Mon Nov 22 07:24:08 PST 2021


On Wed, Nov 17, 2021 at 02:25:39PM +0300, Nikita Shubin wrote:
> On Tue, 16 Nov 2021 15:48:12 +0000
> João Mário Domingos <joao.mario at tecnico.ulisboa.pt> wrote:
> 
> Hello Mario!
> 
Hello Nikita!
> > +  {
> > +    "EventName": "UTLB_MISS",
> > +    "EventCode": "0x0002002",
> > +    "BriefDescription": "UTLB miss"
> > +  }
> 
> I don't see such thing in FU740 v1p3 manual - am i missing something ?
You are absolutelly right, there is no reference to the L2 cache
(Unified Cache) TLB misses event in the FU740 v1p3 manual. But
considering that the FU740 is composed of 1 S7 and 4 U74 cores, I used the U74 core complex
manual
[https://www.starfivetech.com/uploads/u74_core_complex_manual_21G1.pdf]
as the source for events. Did you test the utlb_miss event, and does it
work in your board?

Best,
João Mário
> 
> Yours,
> Nikita Shubin
> 
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