diff options
Diffstat (limited to 'arch/x86/kernel/apic/apic_common.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c index 02b4839478b1..7bc5d9bf59cd 100644 --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -6,6 +6,8 @@ #include <linux/irq.h> #include <asm/apic.h> +#include "local.h" + u32 apic_default_calc_apicid(unsigned int cpu) { return per_cpu(x86_cpu_to_apicid, cpu); @@ -29,18 +31,27 @@ void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) int default_cpu_present_to_apicid(int mps_cpu) { if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) - return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); + return (int)per_cpu(x86_cpu_to_apicid, mps_cpu); else return BAD_APICID; } EXPORT_SYMBOL_GPL(default_cpu_present_to_apicid); -int default_check_phys_apicid_present(int phys_apicid) +bool default_apic_id_registered(void) { - return physid_isset(phys_apicid, phys_cpu_present_map); + return physid_isset(read_apic_id(), phys_cpu_present_map); } -int default_apic_id_valid(u32 apicid) +/* + * Set up the logical destination ID when the APIC operates in logical + * destination mode. + */ +void default_init_apic_ldr(void) { - return (apicid < 255); + unsigned long val; + + apic_write(APIC_DFR, APIC_DFR_FLAT); + val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; + val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id()); + apic_write(APIC_LDR, val); } |