[tip: perf/urgent] perf/x86/intel: Rename NVL offcore_rsp attribute to offmodule_rsp

From: tip-bot2 for Dapeng Mi

Date: Tue Sep 22 2026 - 05:46:50 EST


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

Commit-ID: d4d9ccbad527af115b8e83a7a2b74785c0e8dfea
Gitweb: https://git.kernel.org/tip/d4d9ccbad527af115b8e83a7a2b74785c0e8dfea
Author: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
AuthorDate: Thu, 17 Sep 2026 09:52:34 +08:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Tue, 22 Sep 2026 11:38:17 +02:00

perf/x86/intel: Rename NVL offcore_rsp attribute to offmodule_rsp

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 & tooling confusion.

Signed-off-by: Dapeng Mi <dapeng1.mi@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Link: https://patch.msgid.link/20260917015234.981153-13-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 3843dbe..3ef8088 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -7530,6 +7530,7 @@ 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);

@@ -7568,6 +7569,23 @@ 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);
@@ -8842,7 +8860,7 @@ __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];