Add the effective irq mask update to the apic implementations and enable effective irq masks for x86. Signed-off-by: Thomas Gleixner --- arch/x86/Kconfig | 1 + arch/x86/kernel/apic/apic.c | 3 +++ arch/x86/kernel/apic/x2apic_cluster.c | 4 ++++ 3 files changed, 8 insertions(+) --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -87,6 +87,7 @@ config X86 select GENERIC_EARLY_IOREMAP select GENERIC_FIND_FIRST_BIT select GENERIC_IOMAP + select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP select GENERIC_IRQ_MIGRATION if SMP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -2210,6 +2210,7 @@ int default_cpu_mask_to_apicid(const str if (cpu >= nr_cpu_ids) return -EINVAL; *apicid = per_cpu(x86_cpu_to_apicid, cpu); + irq_data_update_effective_affinity(irqdata, cpumask_of(cpu)); return 0; } @@ -2218,11 +2219,13 @@ int flat_cpu_mask_to_apicid(const struct unsigned int *apicid) { + struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata); unsigned long cpu_mask = cpumask_bits(mask)[0] & APIC_ALL_CPUS; if (!cpu_mask) return -EINVAL; *apicid = (unsigned int)cpu_mask; + cpumask_bits(effmsk)[0] = cpu_mask; return 0; } --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include @@ -107,6 +108,7 @@ static int x2apic_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata, unsigned int *apicid) { + struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata); unsigned int cpu; u32 dest = 0; u16 cluster; @@ -118,10 +120,12 @@ x2apic_cpu_mask_to_apicid(const struct c dest = per_cpu(x86_cpu_to_logical_apicid, cpu); cluster = x2apic_cluster(cpu); + cpumask_clear(effmsk); for_each_cpu(cpu, mask) { if (cluster != x2apic_cluster(cpu)) continue; dest |= per_cpu(x86_cpu_to_logical_apicid, cpu); + cpumask_set_cpu(cpu, effmsk); } *apicid = dest;