diff options
Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r-- | arch/x86/include/asm/apic.h | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index e3fecd5..ae91f9c 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -331,9 +331,11 @@ struct apic { unsigned long (*set_apic_id)(unsigned int id); unsigned long apic_id_mask; - unsigned int (*cpu_mask_to_apicid)(const struct cpumask *cpumask); - unsigned int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask, - const struct cpumask *andmask); + int (*cpu_mask_to_apicid)(const struct cpumask *cpumask, + unsigned int *apicid); + int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask, + const struct cpumask *andmask, + unsigned int *apicid); /* ipi */ void (*send_IPI_mask)(const struct cpumask *mask, int vector); @@ -591,29 +593,45 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb) #endif -static inline unsigned int -flat_cpu_mask_to_apicid(const struct cpumask *cpumask) +static inline int +__flat_cpu_mask_to_apicid(unsigned long cpu_mask, unsigned int *apicid) { - return cpumask_bits(cpumask)[0] & APIC_ALL_CPUS; + cpu_mask &= APIC_ALL_CPUS; + if (likely(cpu_mask)) { + *apicid = (unsigned int)cpu_mask; + return 0; + } else { + return -EINVAL; + } } -static inline unsigned int +static inline int +flat_cpu_mask_to_apicid(const struct cpumask *cpumask, + unsigned int *apicid) +{ + return __flat_cpu_mask_to_apicid(cpumask_bits(cpumask)[0], apicid); +} + +static inline int flat_cpu_mask_to_apicid_and(const struct cpumask *cpumask, - const struct cpumask *andmask) + const struct cpumask *andmask, + unsigned int *apicid) { unsigned long mask1 = cpumask_bits(cpumask)[0]; unsigned long mask2 = cpumask_bits(andmask)[0]; unsigned long mask3 = cpumask_bits(cpu_online_mask)[0]; - return (unsigned int)(mask1 & mask2 & mask3); + return __flat_cpu_mask_to_apicid(mask1 & mask2 & mask3, apicid); } -extern unsigned int -default_cpu_mask_to_apicid(const struct cpumask *cpumask); +extern int +default_cpu_mask_to_apicid(const struct cpumask *cpumask, + unsigned int *apicid); -extern unsigned int +extern int default_cpu_mask_to_apicid_and(const struct cpumask *cpumask, - const struct cpumask *andmask); + const struct cpumask *andmask, + unsigned int *apicid); static inline bool flat_vector_allocation_domain(int cpu, struct cpumask *retmask) |