x64, x2apic/intr-remap: introduce read_apic_id() to genapic routines

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / genapic_64.c

diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index cbaaf69bedb29c92055e2272a12efba7f49f9ee1..7414871751a735630a9428803384a1191d07c737 100644 (file)
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -51,7 +51,7 @@ void __init setup_apic_routing(void)
        else
 #endif
 
-       if (num_possible_cpus() <= 8)
+       if (max_physical_apicid < 8)
                genapic = &apic_flat;
        else
                genapic = &apic_physflat;
@@ -79,17 +79,6 @@ int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
        return 0;
 }
 
-unsigned int read_apic_id(void)
-{
-       unsigned int id;
-
-       WARN_ON(preemptible() && num_online_cpus() > 1);
-       id = apic_read(APIC_ID);
-       if (uv_system_type >= UV_X2APIC)
-               id  |= __get_cpu_var(x2apic_extra_bits);
-       return id;
-}
-
 enum uv_system_type get_uv_system_type(void)
 {
        return uv_system_type;