diff options
Diffstat (limited to 'arch/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index bef571769e6..feb2dbdae9e 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -615,6 +615,27 @@ extern unsigned int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask, const struct cpumask *andmask); +static inline void +flat_vector_allocation_domain(int cpu, struct cpumask *retmask) +{ + /* Careful. Some cpus do not strictly honor the set of cpus + * specified in the interrupt destination when using lowest + * priority interrupt delivery mode. + * + * In particular there was a hyperthreading cpu observed to + * deliver interrupts to the wrong hyperthread when only one + * hyperthread was specified in the interrupt desitination. + */ + cpumask_clear(retmask); + cpumask_bits(retmask)[0] = APIC_ALL_CPUS; +} + +static inline void +default_vector_allocation_domain(int cpu, struct cpumask *retmask) +{ + cpumask_copy(retmask, cpumask_of(cpu)); +} + static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid) { return physid_isset(apicid, *map); |