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Date: Mon, 27 Jul 2020 11:02:24 +0530 From: Srikar Dronamraju <srikar@...ux.vnet.ibm.com> To: Michael Ellerman <mpe@...erman.id.au> Cc: linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>, LKML <linux-kernel@...r.kernel.org>, Nicholas Piggin <npiggin@...il.com>, Anton Blanchard <anton@...abs.org>, "Oliver O'Halloran" <oohall@...il.com>, Nathan Lynch <nathanl@...ux.ibm.com>, Michael Neuling <mikey@...ling.org>, Gautham R Shenoy <ego@...ux.vnet.ibm.com>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Valentin Schneider <valentin.schneider@....com>, Jordan Niethe <jniethe5@...il.com> Subject: [PATCH v4 04/10] powerpc/smp: Move topology fixups into a new function Move topology fixup based on the platform attributes into its own function which is called just before set_sched_topology. Cc: linuxppc-dev <linuxppc-dev@...ts.ozlabs.org> Cc: LKML <linux-kernel@...r.kernel.org> Cc: Michael Ellerman <mpe@...erman.id.au> Cc: Nicholas Piggin <npiggin@...il.com> Cc: Anton Blanchard <anton@...abs.org> Cc: Oliver O'Halloran <oohall@...il.com> Cc: Nathan Lynch <nathanl@...ux.ibm.com> Cc: Michael Neuling <mikey@...ling.org> Cc: Gautham R Shenoy <ego@...ux.vnet.ibm.com> Cc: Ingo Molnar <mingo@...nel.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Valentin Schneider <valentin.schneider@....com> Cc: Jordan Niethe <jniethe5@...il.com> Reviewed-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com> Signed-off-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com> --- Changelog v2 -> v3: Rewrote changelog (Gautham) Renamed to powerpc/smp: Move topology fixups into a new function arch/powerpc/kernel/smp.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index a685915e5941..da27f6909be1 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -1368,6 +1368,16 @@ int setup_profiling_timer(unsigned int multiplier) return 0; } +static void fixup_topology(void) +{ +#ifdef CONFIG_SCHED_SMT + if (has_big_cores) { + pr_info("Big cores detected but using small core scheduling\n"); + powerpc_topology[0].mask = smallcore_smt_mask; + } +#endif +} + void __init smp_cpus_done(unsigned int max_cpus) { /* @@ -1381,12 +1391,7 @@ void __init smp_cpus_done(unsigned int max_cpus) dump_numa_cpu_topology(); -#ifdef CONFIG_SCHED_SMT - if (has_big_cores) { - pr_info("Big cores detected but using small core scheduling\n"); - powerpc_topology[0].mask = smallcore_smt_mask; - } -#endif + fixup_topology(); set_sched_topology(powerpc_topology); } -- 2.17.1
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