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From:   Tim Chen <tim.c.chen@linux.intel.com>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Tim C Chen <tim.c.chen@linux.intel.com>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Ricardo Neri <ricardo.neri@intel.com>,
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        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Len Brown <len.brown@intel.com>, Mel Gorman <mgorman@suse.de>,
        "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
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        Valentin Schneider <vschneid@redhat.com>,
        Ionela Voinescu <ionela.voinescu@arm.com>, x86@kernel.org,
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        Yicong Yang <yangyicong@hisilicon.com>,
        Barry Song <v-songbaohua@oppo.com>,
        Chen Yu <yu.c.chen@intel.com>, Hillf Danton <hdanton@sina.com>,
        Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Subject: [Patch v3 5/6] sched/x86: Add cluster topology to hybrid CPU
Date:   Fri,  7 Jul 2023 15:57:04 -0700
Message-Id: <e64678a22c57d572dcac20a0d492d406d56bf881.1688770494.git.tim.c.chen@linux.intel.com>
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From: Tim C Chen <tim.c.chen@linux.intel.com>

Cluster topology was not enabled on hybrid x86 CPU as load balance
was not properly working for cluster domain.  That has been fixed and
cluster domain can be enabled for hybrid CPU.

Reviewed-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
---
 arch/x86/kernel/smpboot.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index cea297d97034..2489d767c398 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -575,6 +575,9 @@ static struct sched_domain_topology_level x86_hybrid_topology[] = {
 #ifdef CONFIG_SCHED_SMT
 	{ cpu_smt_mask, x86_smt_flags, SD_INIT_NAME(SMT) },
 #endif
+#ifdef CONFIG_SCHED_CLUSTER
+	{ cpu_clustergroup_mask, x86_cluster_flags, SD_INIT_NAME(CLS) },
+#endif
 #ifdef CONFIG_SCHED_MC
 	{ cpu_coregroup_mask, x86_core_flags, SD_INIT_NAME(MC) },
 #endif
-- 
2.32.0