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 d7d3594f93e..4ee521ff0a3 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
  */