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Peter Anvin" , Peter Zijlstra , Juri Lelli , Vincent Guittot , , , CC: Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak , , Li Chen , Bibo Mao , Mete Durlu , Tobias Huschle , "Easwar Hariharan" , Guo Weikang , "Rafael J. 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When has_coregroup_support() returns false, cpu_coregroup_mask() returns the mask used by the PKG domain. Since this will only be used after CONFIG_SCHED_MC is added for PowerPC, no functional changes are intended at this point. Signed-off-by: K Prateek Nayak --- arch/powerpc/include/asm/smp.h | 2 ++ arch/powerpc/kernel/smp.c | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index b77927ccb0ab..86de4d0dd0aa 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -148,6 +148,8 @@ static inline const struct cpumask *cpu_smt_mask(int cp= u) } #endif /* CONFIG_SCHED_SMT */ =20 +extern const struct cpumask *cpu_coregroup_mask(int cpu); + /* Since OpenPIC has only 4 IPIs, we use slightly different message number= s. * * Make sure this matches openpic_request_IPIs in open_pic.c, or what show= s up diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 4f48262658cc..e623f2864dc4 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -1059,6 +1059,14 @@ static bool has_coregroup_support(void) return coregroup_enabled; } =20 +const struct cpumask *cpu_coregroup_mask(int cpu) +{ + if (has_coregroup_support()) + return per_cpu(cpu_corgrp_map, cpu); + + return cpu_node_mask(cpu); +} + static const struct cpumask *cpu_mc_mask(struct sched_domain_topology_leve= l *tl, int cpu) { return cpu_corgrp_mask(cpu); --=20 2.34.1