diff mbox series

[v3,07/10] perf/x86/rapl: Add an argument to the cleanup and init functions

Message ID 20240624055907.7720-8-Dhananjay.Ugwekar@amd.com
State New
Headers show
Series [v3,01/10] x86/topology: Introduce topology_logical_core_id() | expand

Commit Message

Dhananjay Ugwekar June 24, 2024, 5:59 a.m. UTC 
Prep for per-core RAPL PMU addition.

No functional change.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
---
 arch/x86/events/rapl.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)
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Patch

diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index 70c7b35fb4d2..f815c60ec551 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -687,7 +687,7 @@  static void __init rapl_advertise(void)
 	}
 }
 
-static void cleanup_rapl_pmus(void)
+static void cleanup_rapl_pmus(struct rapl_pmus *rapl_pmus)
 {
 	int i;
 
@@ -705,8 +705,10 @@  static const struct attribute_group *rapl_attr_update[] = {
 	NULL,
 };
 
-static int __init init_rapl_pmus(void)
+static int __init init_rapl_pmus(struct rapl_pmus **rapl_pmus_ptr)
 {
+	struct rapl_pmus *rapl_pmus;
+
 	int nr_rapl_pmu = topology_max_packages() * topology_max_dies_per_package();
 
 	if (rapl_pmu_is_pkg_scope())
@@ -728,6 +730,9 @@  static int __init init_rapl_pmus(void)
 	rapl_pmus->pmu.read		= rapl_pmu_event_read;
 	rapl_pmus->pmu.module		= THIS_MODULE;
 	rapl_pmus->pmu.capabilities	= PERF_PMU_CAP_NO_EXCLUDE;
+
+	*rapl_pmus_ptr = rapl_pmus;
+
 	return 0;
 }
 
@@ -869,7 +874,7 @@  static int __init rapl_pmu_init(void)
 	if (ret)
 		return ret;
 
-	ret = init_rapl_pmus();
+	ret = init_rapl_pmus(&rapl_pmus);
 	if (ret)
 		return ret;
 
@@ -893,7 +898,7 @@  static int __init rapl_pmu_init(void)
 	cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
 out:
 	pr_warn("Initialization failed (%d), disabled\n", ret);
-	cleanup_rapl_pmus();
+	cleanup_rapl_pmus(rapl_pmus);
 	return ret;
 }
 module_init(rapl_pmu_init);
@@ -902,6 +907,6 @@  static void __exit intel_rapl_exit(void)
 {
 	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_RAPL_ONLINE);
 	perf_pmu_unregister(&rapl_pmus->pmu);
-	cleanup_rapl_pmus();
+	cleanup_rapl_pmus(rapl_pmus);
 }
 module_exit(intel_rapl_exit);