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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>,
	<kees@kernel.org>, <gustavoars@kernel.org>, <rui.zhang@intel.com>,
	<oleksandr@natalenko.name>
Cc: <linux-perf-users@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linux-hardening@vger.kernel.org>,
	<ananth.narayan@amd.com>, <gautham.shenoy@amd.com>,
	<kprateek.nayak@amd.com>, <ravi.bangoria@amd.com>,
	<sandipan.das@amd.com>, <linux-pm@vger.kernel.org>,
	Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Subject: [PATCH v2 8/9] perf/x86/rapl: Remove the global variable rapl_msrs
Date: Thu, 20 Jun 2024 12:57:02 +0000	[thread overview]
Message-ID: <20240620125703.3297-9-Dhananjay.Ugwekar@amd.com> (raw)
In-Reply-To: <20240620125703.3297-1-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 b03b044a390f..e962209e9e4d 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -142,7 +142,6 @@ static int rapl_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;
 
 static inline unsigned int get_rapl_pmu_idx(int cpu)
@@ -380,7 +379,7 @@ static int rapl_pmu_event_init(struct perf_event *event)
 		return -EINVAL;
 	event->cpu = rapl_pmu->cpu;
 	event->pmu_private = rapl_pmu;
-	event->hw.event_base = rapl_msrs[bit].msr;
+	event->hw.event_base = rapl_model->rapl_msrs[bit].msr;
 	event->hw.config = cfg;
 	event->hw.idx = bit;
 
@@ -866,9 +865,7 @@ static int __init rapl_pmu_init(void)
 
 	rapl_model = (struct rapl_model *) id->driver_data;
 
-	rapl_msrs = rapl_model->rapl_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_msrs, PERF_RAPL_PKG_EVENTS_MAX,
 					false, (void *) &rapl_model->pkg_events);
 
 	ret = rapl_check_hw_unit();
-- 
2.34.1


  parent reply	other threads:[~2024-06-20 13:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-20 12:56 [PATCH v2 0/9] Add per-core RAPL energy counter support for AMD CPUs Dhananjay Ugwekar
2024-06-20 12:56 ` [PATCH v2 1/9] perf/x86/rapl: Fix the energy-pkg event " Dhananjay Ugwekar
2024-06-20 12:56 ` [PATCH v2 2/9] perf/x86/rapl: Rename rapl_pmu variables Dhananjay Ugwekar
2024-06-20 12:56 ` [PATCH v2 3/9] perf/x86/rapl: Make rapl_model struct global Dhananjay Ugwekar
2024-06-20 12:56 ` [PATCH v2 4/9] perf/x86/rapl: Move cpumask variable to rapl_pmus struct Dhananjay Ugwekar
2024-06-20 12:56 ` [PATCH v2 5/9] perf/x86/rapl: Add wrapper for online/offline functions Dhananjay Ugwekar
2024-06-20 12:57 ` [PATCH v2 6/9] perf/x86/rapl: Add an argument to the cleanup and init functions Dhananjay Ugwekar
2024-06-20 12:57 ` [PATCH v2 7/9] perf/x86/rapl: Modify the generic variable names to *_pkg* Dhananjay Ugwekar
2024-06-20 12:57 ` Dhananjay Ugwekar [this message]
2024-06-20 12:57 ` [PATCH v2 9/9] perf/x86/rapl: Add per-core energy counter support for AMD CPUs Dhananjay Ugwekar
2024-06-21  8:24 ` [PATCH v2 0/9] Add per-core RAPL " K Prateek Nayak
2024-06-21  8:49   ` Dhananjay Ugwekar

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