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31 lines
949 B
Diff
31 lines
949 B
Diff
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From 30e0cdcf9e05faa65ecde4ed8b70039568fdb660 Mon Sep 17 00:00:00 2001
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From: Minda Chen <minda.chen@starfivetech.com>
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Date: Thu, 2 Mar 2023 17:16:01 +0800
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Subject: [PATCH 076/116] perf: sbi: disable cpu hotplug callback.
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register cpu hotplug callback will cause dhrystone
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and coremark benchmark reduce the scores. this CPU
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hotplug ops will do in sbi cpu/on and off. So disable
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this no side effect.
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Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
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Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
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---
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drivers/perf/riscv_pmu_sbi.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/perf/riscv_pmu_sbi.c
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+++ b/drivers/perf/riscv_pmu_sbi.c
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@@ -1114,9 +1114,11 @@ static int pmu_sbi_device_probe(struct p
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}
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pdev->dev.groups = pmu_sbi_groups;
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+#ifndef CONFIG_ARCH_STARFIVE
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ret = cpuhp_state_add_instance(CPUHP_AP_PERF_RISCV_STARTING, &pmu->node);
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if (ret)
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return ret;
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+#endif
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ret = riscv_pm_pmu_register(pmu);
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if (ret)
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