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From: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
To: <peterz@infradead.org>, <mingo@redhat.com>, <acme@kernel.org>,
	<namhyung@kernel.org>, <mark.rutland@arm.com>,
	<alexander.shishkin@linux.intel.com>, <jolsa@kernel.org>,
	<irogers@google.com>, <adrian.hunter@intel.com>,
	<kan.liang@linux.intel.com>, <tglx@linutronix.de>, <bp@alien8.de>,
	<dave.hansen@linux.intel.com>, <x86@kernel.org>, <hpa@zytor.com>,
	<rui.zhang@intel.com>, <oleksandr@natalenko.name>
Cc: <eranian@google.com>, <gautham.shenoy@amd.com>,
	<ravi.bangoria@amd.com>, <linux-perf-users@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	"Dhananjay Ugwekar" <Dhananjay.Ugwekar@amd.com>
Subject: [PATCH v5 7/9] perf/x86/rapl: Remove the global variable rapl_msrs
Date: Fri, 13 Sep 2024 15:47:59 +0000	[thread overview]
Message-ID: <20240913154801.6446-4-Dhananjay.Ugwekar@amd.com> (raw)
In-Reply-To: <20240913154801.6446-1-Dhananjay.Ugwekar@amd.com>

After making the rapl_model struct global, the rapl_msrs global
variable isn't needed, so remove it.

Also it will be cleaner when new per-core scope PMU is added. As we will
need to maintain two rapl_msrs array(one for per-core scope and one for
package scope PMU), inside the rapl_model struct.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
---
 arch/x86/events/rapl.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index 023d208966bc..bfd8bbcc1421 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -137,7 +137,6 @@ static int rapl_pkg_hw_unit[NR_RAPL_PKG_DOMAINS] __read_mostly;
 static struct rapl_pmus *rapl_pmus_pkg;
 static unsigned int rapl_pkg_cntr_mask;
 static u64 rapl_timer_ms;
-static struct perf_msr *rapl_msrs;
 static struct rapl_model *rapl_model;
 
 /*
@@ -376,7 +375,7 @@ static int rapl_pmu_event_init(struct perf_event *event)
 		return -EINVAL;
 
 	event->pmu_private = rapl_pmu;
-	event->hw.event_base = rapl_msrs[bit].msr;
+	event->hw.event_base = rapl_model->rapl_pkg_msrs[bit].msr;
 	event->hw.config = cfg;
 	event->hw.idx = bit;
 
@@ -813,9 +812,7 @@ static int __init rapl_pmu_init(void)
 
 	rapl_model = (struct rapl_model *) id->driver_data;
 
-	rapl_msrs = rapl_model->rapl_pkg_msrs;
-
-	rapl_pkg_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_PKG_EVENTS_MAX,
+	rapl_pkg_cntr_mask = perf_msr_probe(rapl_model->rapl_pkg_msrs, PERF_RAPL_PKG_EVENTS_MAX,
 					false, (void *) &rapl_model->pkg_events);
 
 	ret = rapl_check_hw_unit();
-- 
2.34.1


  parent reply	other threads:[~2024-09-13 15:49 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-13 15:21 [PATCH v5 0/9] Add per-core RAPL energy counter support for AMD CPUs Dhananjay Ugwekar
2024-09-13 15:21 ` [PATCH v5 1/9] x86/topology: Introduce topology_logical_core_id() Dhananjay Ugwekar
2024-09-13 15:21 ` [PATCH v5 2/9] perf/x86/rapl: Remove the cpu_to_rapl_pmu() function Dhananjay Ugwekar
2024-09-13 15:21 ` [PATCH v5 3/9] perf/x86/rapl: Rename rapl_pmu variables Dhananjay Ugwekar
2024-09-13 15:47 ` [PATCH v5 4/9] perf/x86/rapl: Make rapl_model struct global Dhananjay Ugwekar
2024-09-13 15:47   ` [PATCH v5 5/9] perf/x86/rapl: Add arguments to the cleanup and init functions Dhananjay Ugwekar
2024-09-13 15:47   ` [PATCH v5 6/9] perf/x86/rapl: Modify the generic variable names to *_pkg* Dhananjay Ugwekar
2024-09-13 15:47   ` Dhananjay Ugwekar [this message]
2024-09-13 15:48   ` [PATCH v5 8/9] perf/x86/rapl: Move the cntr_mask to rapl_pmus struct Dhananjay Ugwekar
2024-09-13 15:48   ` [PATCH v5 9/9] perf/x86/rapl: Add per-core energy counter support for AMD CPUs Dhananjay Ugwekar
2024-10-07  6:41     ` Gautham R. Shenoy
2024-10-07  8:38       ` Dhananjay Ugwekar
2024-09-13 21:18 ` [PATCH v5 0/9] Add per-core RAPL " Oleksandr Natalenko
2024-09-16  4:18   ` Dhananjay Ugwekar
2024-09-16  6:49     ` Oleksandr Natalenko
2024-09-16  8:01       ` Dhananjay Ugwekar
2024-10-08  6:08 ` Zhang, Rui
2024-10-08  6:43   ` Dhananjay Ugwekar

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