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[linux-2.6.git] / include / asm-x86_64 / smp.h

diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index a0229ff..03841be 100644 (file)
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -48,7 +48,7 @@ extern void (*mtrr_hook) (void);
 extern void zap_low_mappings(void);
 void smp_stop_cpu(void);
 extern cpumask_t cpu_sibling_map[NR_CPUS];
-extern u8 phys_proc_id[NR_CPUS];
+extern char phys_proc_id[NR_CPUS];
 
 #define SMP_TRAMPOLINE_BASE 0x6000
 
@@ -74,29 +74,14 @@ extern __inline int hard_smp_processor_id(void)
        return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID));
 }
 
-#define safe_smp_processor_id() (disable_apic ? 0 : x86_apicid_to_cpu(hard_smp_processor_id()))
-
-#endif /* !ASSEMBLY */
-
-#define NO_PROC_ID             0xFF            /* No processor magic marker */
-
-#endif
-
-#ifndef ASSEMBLY
 /*
  * Some lowlevel functions might want to know about
  * the real APIC ID <-> CPU # mapping.
+ * AK: why is this volatile?
  */
-extern u8 x86_cpu_to_apicid[NR_CPUS];  /* physical ID */
-extern u8 x86_cpu_to_log_apicid[NR_CPUS];
-extern u8 bios_cpu_apicid[];
-
-static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
-{
-       return cpus_addr(cpumask)[0];
-}
+extern volatile char x86_cpu_to_apicid[NR_CPUS];
 
-static inline int x86_apicid_to_cpu(u8 apicid)
+static inline char x86_apicid_to_cpu(char apicid)
 {
        int i;
 
@@ -104,14 +89,13 @@ static inline int x86_apicid_to_cpu(u8 apicid)
                if (x86_cpu_to_apicid[i] == apicid)
                        return i;
 
-       /* No entries in x86_cpu_to_apicid?  Either no MPS|ACPI,
-        * or called too early.  Either way, we must be CPU 0. */
-       if (x86_cpu_to_apicid[0] == BAD_APICID)
-               return 0;
-
        return -1;
 }
 
+#define safe_smp_processor_id() (disable_apic ? 0 : x86_apicid_to_cpu(hard_smp_processor_id()))
+
+extern u8 bios_cpu_apicid[];
+
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
        if (mps_cpu < NR_CPUS)
@@ -122,6 +106,23 @@ static inline int cpu_present_to_apicid(int mps_cpu)
 
 #endif /* !ASSEMBLY */
 
+#define NO_PROC_ID             0xFF            /* No processor magic marker */
+
+#endif
+#define INT_DELIVERY_MODE 1     /* logical delivery */
+
+#ifndef ASSEMBLY
+#ifdef CONFIG_SMP
+#define TARGET_CPUS cpu_online_map
+#else
+#define TARGET_CPUS cpumask_of_cpu(0)
+#endif
+static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
+{
+       return cpus_addr(cpumask)[0];
+}
+#endif
+
 #ifndef CONFIG_SMP
 #define stack_smp_processor_id() 0
 #define safe_smp_processor_id() 0