diff mbox series

[v4,07/11] perf/x86/rapl: Add an argument to the cleanup and init functions

Message ID 20240711102436.4432-8-Dhananjay.Ugwekar@amd.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Add per-core RAPL energy counter support for AMD CPUs | expand

Commit Message

Dhananjay Ugwekar July 11, 2024, 10:24 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 | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

Comments

Zhang Rui July 12, 2024, 3:22 a.m. UTC | #1 
On Thu, 2024-07-11 at 10:24 +0000, Dhananjay Ugwekar wrote:
> Prep for per-core RAPL PMU addition.
> 
> No functional change.
> 
> Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>

Reviewed-by: Zhang Rui <rui.zhang@intel.com>

-rui

> ---
>  arch/x86/events/rapl.c | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
> index 1d36565d0cb9..362e82284ccb 100644
> --- a/arch/x86/events/rapl.c
> +++ b/arch/x86/events/rapl.c
> @@ -694,7 +694,7 @@ static void __init rapl_advertise(void)
>         }
>  }
>  
> -static void cleanup_rapl_pmus(void)
> +static void cleanup_rapl_pmus(struct rapl_pmus *rapl_pmus)
>  {
>         int i;
>  
> @@ -712,9 +712,10 @@ 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)
>  {
>         int nr_rapl_pmu = topology_max_packages();
> +       struct rapl_pmus *rapl_pmus;
>  
>         if (!rapl_pmu_is_pkg_scope())
>                 nr_rapl_pmu *= topology_max_dies_per_package();
> @@ -738,6 +739,9 @@ 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;
>  }
>  
> @@ -879,7 +883,7 @@ 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;
>  
> @@ -903,7 +907,7 @@ 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);
> @@ -912,6 +916,6 @@ 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);
diff mbox series

Patch

diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index 1d36565d0cb9..362e82284ccb 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -694,7 +694,7 @@  static void __init rapl_advertise(void)
 	}
 }
 
-static void cleanup_rapl_pmus(void)
+static void cleanup_rapl_pmus(struct rapl_pmus *rapl_pmus)
 {
 	int i;
 
@@ -712,9 +712,10 @@  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)
 {
 	int nr_rapl_pmu = topology_max_packages();
+	struct rapl_pmus *rapl_pmus;
 
 	if (!rapl_pmu_is_pkg_scope())
 		nr_rapl_pmu *= topology_max_dies_per_package();
@@ -738,6 +739,9 @@  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;
 }
 
@@ -879,7 +883,7 @@  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;
 
@@ -903,7 +907,7 @@  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);
@@ -912,6 +916,6 @@  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);