From ab535361efdf8129dc593f8f2d80b76767c07813 Mon Sep 17 00:00:00 2001 From: Gregory CLEMENT Date: Fri, 23 May 2025 09:58:15 +0200 Subject: [PATCH] MIPS: SMP: Move the AP sync point before the calibration delay In the calibration delay process, some resources are shared, so it's better to move it after the parallel execution part. Thanks to the patch optimizing CPU delay calibration, this change has no impact on the boot time improvements gained from CPU parallel boot. Signed-off-by: Gregory CLEMENT Signed-off-by: Thomas Bogendoerfer --- arch/mips/kernel/smp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 7901b59d8f60..4868e79f3b30 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -371,12 +371,12 @@ asmlinkage void start_secondary(void) * to an option instead of something based on .cputype */ - calibrate_delay(); - cpu_data[cpu].udelay_val = loops_per_jiffy; - #ifdef CONFIG_HOTPLUG_PARALLEL cpuhp_ap_sync_alive(); #endif + calibrate_delay(); + cpu_data[cpu].udelay_val = loops_per_jiffy; + set_cpu_sibling_map(cpu); set_cpu_core_map(cpu); -- 2.47.2