From: Russell King Date: Mon, 11 Jul 2005 18:42:58 +0000 (+0100) Subject: [PATCH] ARM SMP: Initialise cpu_present_map X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=73eb7d9e8cfd16813eec94d0ec8fa2a5262a85cc;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [PATCH] ARM SMP: Initialise cpu_present_map Rather than relying on the fixup code in init/main.c, explicitly initialise cpu_present_map. Signed-off-by: Russell King --- diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 78c24a1266b1..7ae45c3fc834 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -236,6 +236,7 @@ void __init smp_prepare_boot_cpu(void) unsigned int cpu = smp_processor_id(); cpu_set(cpu, cpu_possible_map); + cpu_set(cpu, cpu_present_map); cpu_set(cpu, cpu_online_map); } diff --git a/arch/arm/mach-integrator/platsmp.c b/arch/arm/mach-integrator/platsmp.c index 88f40a5189cd..2ba025777098 100644 --- a/arch/arm/mach-integrator/platsmp.c +++ b/arch/arm/mach-integrator/platsmp.c @@ -174,11 +174,13 @@ void __init smp_prepare_cpus(unsigned int max_cpus) max_cpus = ncores; /* - * Initialise the present mask - this tells us which CPUs should - * be present. + * Initialise the possible/present maps. + * cpu_possible_map describes the set of CPUs which may be present + * cpu_present_map describes the set of CPUs populated */ for (i = 0; i < max_cpus; i++) { cpu_set(i, cpu_possible_map); + cpu_set(i, cpu_present_map); } /*