linux-kernel - [PATCH v3 1/3] arm64: topology: Set scale freq source only for the CPUs that have not been set before

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Message-ID: <20250805093330.3715444-2-zhenglifeng1@huawei.com>
Date: Tue, 5 Aug 2025 17:33:28 +0800
From: Lifeng Zheng <zhenglifeng1@...wei.com>
To: <catalin.marinas@....com>, <will@...nel.org>, <rafael@...nel.org>,
	<viresh.kumar@...aro.org>, <beata.michalska@....com>, <sudeep.holla@....com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
	<jonathan.cameron@...wei.com>, <vincent.guittot@...aro.org>,
	<yangyicong@...ilicon.com>, <zhanjie9@...ilicon.com>, <lihuisong@...wei.com>,
	<yubowen8@...wei.com>, <linhongye@...artners.com>, <zhenglifeng1@...wei.com>
Subject: [PATCH v3 1/3] arm64: topology: Set scale freq source only for the CPUs that have not been set before

The scale freq source of the CPUs in 'amu_fie_cpus' mask are already set to
AMU tick before, so in amu_fie_setup(), only the CPUs in the 'cpus' mask
should be set.

Signed-off-by: Lifeng Zheng <zhenglifeng1@...wei.com>
---
 arch/arm64/kernel/topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 5d07ee85bdae..9317a618bb87 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -373,7 +373,7 @@ static void amu_fie_setup(const struct cpumask *cpus)
 
 	cpumask_or(amu_fie_cpus, amu_fie_cpus, cpus);
 
-	topology_set_scale_freq_source(&amu_sfd, amu_fie_cpus);
+	topology_set_scale_freq_source(&amu_sfd, cpus);
 
 	pr_debug("CPUs[%*pbl]: counters will be used for FIE.",
 		 cpumask_pr_args(cpus));
-- 
2.33.0