[PATCH 12/12] perf/x86/intel: Rename NVL offcore_rsp attribute to offmodule_rsp

From: Dapeng Mi

Date: Wed Sep 16 2026 - 22:03:27 EST


NVL introduces Offmodule Response events in place of the legacy
Offcore Response events, but it still exposes the inherited
offcore_rsp PMU attribute for programming the corresponding MSR data.

Rename the NVL PMU attribute to offmodule_rsp so the sysfs interface
matches the underlying event name and avoids user confusion.

Signed-off-by: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
---
arch/x86/events/intel/core.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 963d391af2ee..7b7e1e1c90af 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -7549,6 +7549,7 @@ static struct attribute *adl_hybrid_tsx_attrs[] = {
FORMAT_ATTR_HYBRID(in_tx, hybrid_big);
FORMAT_ATTR_HYBRID(in_tx_cp, hybrid_big);
FORMAT_ATTR_HYBRID(offcore_rsp, hybrid_big_small_tiny);
+FORMAT_ATTR_HYBRID(offmodule_rsp, hybrid_big_small_tiny);
FORMAT_ATTR_HYBRID(ldlat, hybrid_big_small_tiny);
FORMAT_ATTR_HYBRID(frontend, hybrid_big);

@@ -7587,6 +7588,23 @@ static struct attribute *mtl_hybrid_extra_attr[] = {
NULL
};

+static struct attribute *nvl_hybrid_extra_attr_rtm[] = {
+ ADL_HYBRID_RTM_FORMAT_ATTR,
+ FORMAT_HYBRID_PTR(offmodule_rsp),
+ FORMAT_HYBRID_PTR(ldlat),
+ FORMAT_HYBRID_PTR(frontend),
+ FORMAT_HYBRID_PTR(snoop_rsp),
+ NULL
+};
+
+static struct attribute *nvl_hybrid_extra_attr[] = {
+ FORMAT_HYBRID_PTR(offmodule_rsp),
+ FORMAT_HYBRID_PTR(ldlat),
+ FORMAT_HYBRID_PTR(frontend),
+ FORMAT_HYBRID_PTR(snoop_rsp),
+ NULL
+};
+
static bool is_attr_for_this_pmu(struct kobject *kobj, struct attribute *attr)
{
struct device *dev = kobj_to_dev(kobj);
@@ -8861,7 +8879,7 @@ __init int intel_pmu_init(void)
mem_attr = mtl_hybrid_mem_attrs;
tsx_attr = adl_hybrid_tsx_attrs;
extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
- mtl_hybrid_extra_attr_rtm : mtl_hybrid_extra_attr;
+ nvl_hybrid_extra_attr_rtm : nvl_hybrid_extra_attr;

/* Initialize big core specific PerfMon capabilities.*/
pmu = &x86_pmu.hybrid_pmu[X86_HYBRID_PMU_CORE_IDX];
--
2.34.1