[tip: perf/core] perf/x86/intel: Add Panther Lake support

tip-bot2 for Kan Liang
2025-04-17T13:01:39Z

The following commit has been merged into the perf/core branch of tip:

Commit-ID: 7950de14ff5fd8da355d872b887ee8b7b5a1f327
Gitweb: https://git.kernel.org/tip/7950de14ff5fd8da355d872b887ee8b7b5a1f327
Author: Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Tue, 15 Apr 2025 11:44:07
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Thu, 17 Apr 2025 14:19:59 +02:00

perf/x86/intel: Add Panther Lake support

>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@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20250415114428.341182-2-dapeng1.mi@linux.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 2b70a3a..00dfe48 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -7314,8 +7314,17 @@ __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;
@@ -7337,8 +7346,6 @@ __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;