Re: [PATCH v8 06/22] RISC-V: Add Smcntrpmf extension parsing

Paul Walmsley <[email protected]>
Newsgroups org.kernel.vger.linux-devicetree,org.infradead.lists.linux-arm-kernel,org.infradead.lists.linux-riscv,org.kernel.vger.linux-kernel,org.kernel.vger.linux-perf-users
Message-ID <[email protected]> 
On Wed, 1 Jul 2026, Atish Patra wrote:

> From: Atish Patra <[email protected]>
> 
> Smcntrpmf extension allows M-mode to enable privilege mode filtering
> for cycle/instret counters. However, the cyclecfg/instretcfg CSRs are
> available in Ssccfg only if Smcntrpmf is present.
> 
> That's why, kernel needs to detect presence of Smcntrpmf extension and
> enable privilege mode filtering for cycle/instret counters.
> 
> Reviewed-by: Clément Léger <[email protected]>
> Signed-off-by: Atish Patra <[email protected]>

Thanks, queued for v7.3.


- Paul
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