linux-kernel - [PATCH 3/3] perf/x86/cstate: Add Airmont NP

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Message-ID: <20251124074846.9653-4-ms@dev.tdt.de>
Date: Mon, 24 Nov 2025 08:48:46 +0100
From: Martin Schiller <ms@....tdt.de>
To: tony.luck@...el.com, peterz@...radead.org, mingo@...hat.com,
	acme@...nel.org, namhyung@...nel.org, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
	irogers@...gle.com, adrian.hunter@...el.com, james.clark@...aro.org,
	tglx@...utronix.de, bp@...en8.de, dave.hansen@...ux.intel.com
Cc: x86@...nel.org, hpa@...or.com, linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org, fe@....tdt.de,
	Martin Schiller <ms@....tdt.de>
Subject: [PATCH 3/3] perf/x86/cstate: Add Airmont NP

>From the perspective of Intel cstate residency counters, the Airmont NP
(aka Lightning Mountain) is identical to the Airmont.

Signed-off-by: Martin Schiller <ms@....tdt.de>
---
 arch/x86/events/intel/cstate.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index ec753e39b007..531dba5a8095 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -599,6 +599,7 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
 	X86_MATCH_VFM(INTEL_ATOM_SILVERMONT,	&slm_cstates),
 	X86_MATCH_VFM(INTEL_ATOM_SILVERMONT_D,	&slm_cstates),
 	X86_MATCH_VFM(INTEL_ATOM_AIRMONT,	&slm_cstates),
+	X86_MATCH_VFM(INTEL_ATOM_AIRMONT_NP,	&slm_cstates),
 
 	X86_MATCH_VFM(INTEL_BROADWELL,		&snb_cstates),
 	X86_MATCH_VFM(INTEL_BROADWELL_D,	&snb_cstates),
-- 
2.47.3