diff options
Diffstat (limited to 'arch/x86/include/asm/bigsmp/apic.h')
| -rw-r--r-- | arch/x86/include/asm/bigsmp/apic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/include/asm/bigsmp/apic.h b/arch/x86/include/asm/bigsmp/apic.h index dc6225ca48a..99f9abacf6a 100644 --- a/arch/x86/include/asm/bigsmp/apic.h +++ b/arch/x86/include/asm/bigsmp/apic.h @@ -129,6 +129,22 @@ static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask) return apicid; } +static inline unsigned int cpu_mask_to_apicid_and(const cpumask_t *cpumask, + const cpumask_t *andmask) +{ + int cpu; + + /* + * We're using fixed IRQ delivery, can only return one phys APIC ID. + * May as well be the first. + */ + while ((cpu = next_cpu(-1, *cpumask)) < nr_cpu_ids) + if (cpu_isset(cpu, *andmask)) + return cpu_to_logical_apicid(cpu); + + return BAD_APICID; +} + static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb) { return cpuid_apic >> index_msb; |