linux-kernel - [Patch v2 02/24] perf/x86/intel: Add Panther Lake support

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Message-Id: <20250218152818.158614-3-dapeng1.mi@linux.intel.com>
Date: Tue, 18 Feb 2025 15:27:56 +0000
From: Dapeng Mi <dapeng1.mi@...ux.intel.com>
To: Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Eranian Stephane <eranian@...gle.com>
Cc: linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	Dapeng Mi <dapeng1.mi@...el.com>
Subject: [Patch v2 02/24] perf/x86/intel: Add Panther Lake support

From: Kan Liang <kan.liang@...ux.intel.com>

>From PMU's perspective, Panther Lake is similar to the previous
generation Lunar Lake. Both are hybrid platforms, with e-core and
p-core.

The key differences are the ARCH PEBS feature and several new events.
The ARCH PEBS is supported in the following patches.
The new events will be supported later in perf tool.

Share the code path with the Lunar Lake. Only update the name.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/events/intel/core.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 5570d97b8f4f..936711db9b32 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -7232,8 +7232,17 @@ __init int intel_pmu_init(void)
 		name = "meteorlake_hybrid";
 		break;
 
+	case INTEL_PANTHERLAKE_L:
+		pr_cont("Pantherlake Hybrid events, ");
+		name = "pantherlake_hybrid";
+		goto lnl_common;
+
 	case INTEL_LUNARLAKE_M:
 	case INTEL_ARROWLAKE:
+		pr_cont("Lunarlake Hybrid events, ");
+		name = "lunarlake_hybrid";
+
+	lnl_common:
 		intel_pmu_init_hybrid(hybrid_big_small);
 
 		x86_pmu.pebs_latency_data = lnl_latency_data;
@@ -7255,8 +7264,6 @@ __init int intel_pmu_init(void)
 		intel_pmu_init_skt(&pmu->pmu);
 
 		intel_pmu_pebs_data_source_lnl();
-		pr_cont("Lunarlake Hybrid events, ");
-		name = "lunarlake_hybrid";
 		break;
 
 	case INTEL_ARROWLAKE_H:
-- 
2.40.1