x86: move generic_processor_info to apic_64.c

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 47 insertions, 0 deletions

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index d7d3594f93e3..4ee521ff0a3e 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -91,6 +91,7 @@ unsigned long mp_lapic_addr;
 unsigned int boot_cpu_physical_apicid = -1U;
 EXPORT_SYMBOL(boot_cpu_physical_apicid);
 
+unsigned int __cpuinitdata maxcpus = NR_CPUS;
 /*
  * Get the LAPIC version
  */
@@ -1057,6 +1058,52 @@ void disconnect_bsp_APIC(int virt_wire_setup)
         apic_write(APIC_LVT1, value);
 }
 
+void __cpuinit generic_processor_info(int apicid, int version)
+{
+        int cpu;
+        cpumask_t tmp_map;
+
+        if (num_processors >= NR_CPUS) {
+                printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
+                       " Processor ignored.\n", NR_CPUS);
+                return;
+        }
+
+        if (num_processors >= maxcpus) {
+                printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
+                       " Processor ignored.\n", maxcpus);
+                return;
+        }
+
+        num_processors++;
+        cpus_complement(tmp_map, cpu_present_map);
+        cpu = first_cpu(tmp_map);
+
+        physid_set(apicid, phys_cpu_present_map);
+        if (apicid == boot_cpu_physical_apicid) {
+                /*
+                 * x86_bios_cpu_apicid is required to have processors listed
+                 * in same order as logical cpu numbers. Hence the first
+                 * entry is BSP, and so on.
+                 */
+                cpu = 0;
+        }
+        /* are we being called early in kernel startup? */
+        if (x86_cpu_to_apicid_early_ptr) {
+                u16 *cpu_to_apicid = x86_cpu_to_apicid_early_ptr;
+                u16 *bios_cpu_apicid = x86_bios_cpu_apicid_early_ptr;
+
+                cpu_to_apicid[cpu] = apicid;
+                bios_cpu_apicid[cpu] = apicid;
+        } else {
+                per_cpu(x86_cpu_to_apicid, cpu) = apicid;
+                per_cpu(x86_bios_cpu_apicid, cpu) = apicid;
+        }
+
+        cpu_set(cpu, cpu_possible_map);
+        cpu_set(cpu, cpu_present_map);
+}
+
 /*
  * Power management
  */