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From: Zhang Rui <rui.zhang@intel.com>
To: peterz@infradead.org
Cc: mingo@redhat.com, tglx@linutronix.de, bp@alien8.de,
	dave.hansen@linux.intel.com, x86@kernel.org,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	ak@linux.intel.com, kan.liang@linux.intel.com
Subject: [PATCH 1/2] perf/x86/intel/cstate: Remove PC3 support from LunarLake
Date: Wed, 25 Jun 2025 09:08:21 +0800	[thread overview]
Message-ID: <20250625010822.250826-1-rui.zhang@intel.com> (raw)

LunarLake doesn't support Package C3. Remove the PC3 residency counter
support from LunarLake.

Fixes: 26579860fbd5 ("perf/x86/intel/cstate: Add Lunarlake support")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 arch/x86/events/intel/cstate.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index ec753e39b007..6f5286a99e0c 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -70,7 +70,7 @@
  *			       perf code: 0x01
  *			       Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL,
  *						GLM,CNL,KBL,CML,ICL,TGL,TNT,RKL,
- *						ADL,RPL,MTL,ARL,LNL
+ *						ADL,RPL,MTL,ARL
  *			       Scope: Package (physical package)
  *	MSR_PKG_C6_RESIDENCY:  Package C6 Residency Counter.
  *			       perf code: 0x02
@@ -522,7 +522,6 @@ static const struct cstate_model lnl_cstates __initconst = {
 				  BIT(PERF_CSTATE_CORE_C7_RES),
 
 	.pkg_events		= BIT(PERF_CSTATE_PKG_C2_RES) |
-				  BIT(PERF_CSTATE_PKG_C3_RES) |
 				  BIT(PERF_CSTATE_PKG_C6_RES) |
 				  BIT(PERF_CSTATE_PKG_C10_RES),
 };
-- 
2.43.0


             reply	other threads:[~2025-06-25  1:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-25  1:08 Zhang Rui [this message]
2025-06-25  1:08 ` [PATCH 2/2] perf/x86/intel/cstate: Add Pantherlake support Zhang Rui
2025-06-25 18:48 ` [PATCH 1/2] perf/x86/intel/cstate: Remove PC3 support from LunarLake Liang, Kan

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