x86: change bios_cpu_apicid to percpu data variable

Change static bios_cpu_apicid array to a per_cpu data variable.
This includes using a static array used during initialization
similar to the way x86_cpu_to_apicid[] is handled.

There is one early use of bios_cpu_apicid in apic_is_clustered_box().
The other reference in cpu_present_to_apicid() is called after
smp_set_apicids() has setup the percpu version of bios_cpu_apicid.

[ mingo@elte.hu: build fix ]

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index 6fa332db29cc..e0a75519ad21 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -27,18 +27,20 @@ extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *),
                                   void *info, int wait);
 
 extern u16 __initdata x86_cpu_to_apicid_init[];
+extern u16 __initdata x86_bios_cpu_apicid_init[];
 extern void *x86_cpu_to_apicid_early_ptr;
-extern u16 bios_cpu_apicid[];
+extern void *x86_bios_cpu_apicid_early_ptr;
 
 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_t, cpu_core_map);
 DECLARE_PER_CPU(u16, cpu_llc_id);
 DECLARE_PER_CPU(u16, x86_cpu_to_apicid);
+DECLARE_PER_CPU(u16, x86_bios_cpu_apicid);
 
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
-        if (mps_cpu < NR_CPUS)
-                return (int)bios_cpu_apicid[mps_cpu];
+        if (cpu_present(mps_cpu))
+                return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
         else
                 return BAD_APICID;
 }