smp, generic: introduce arch_disable_smp_support() instead of disable_ioapic_setup()

[deliverable/linux.git] / include / linux / smp.h

diff --git a/include/linux/smp.h b/include/linux/smp.h
index b824669681014502e1f1d0972ad5d9f775d274cb..d41a3a865fe31e0ebe91dd0503e5955ceb896473 100644 (file)
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -24,6 +24,9 @@ struct call_single_data {
 /* total number of cpus in this system (may exceed NR_CPUS) */
 extern unsigned int total_cpus;
 
+int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
+                               int wait);
+
 #ifdef CONFIG_SMP
 
 #include <linux/preempt.h>
@@ -63,6 +66,12 @@ extern int __cpu_up(unsigned int cpunum);
  */
 extern void smp_cpus_done(unsigned int max_cpus);
 
+/*
+ * Callback to arch code if there's nosmp or maxcpus=0 on the
+ * boot command line:
+ */
+extern void arch_disable_smp_support(void);
+
 /*
  * Call a function on all other processors
  */
@@ -79,8 +88,6 @@ smp_call_function_mask(cpumask_t mask, void(*func)(void *info), void *info,
        return 0;
 }
 
-int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
-                               int wait);
 void __smp_call_function_single(int cpuid, struct call_single_data *data);
 
 /*
@@ -140,14 +147,6 @@ static inline int up_smp_call_function(void (*func)(void *), void *info)
 static inline void smp_send_reschedule(int cpu) { }
 #define num_booting_cpus()                     1
 #define smp_prepare_boot_cpu()                 do {} while (0)
-#define smp_call_function_single(cpuid, func, info, wait) \
-({ \
-       WARN_ON(cpuid != 0);    \
-       local_irq_disable();    \
-       (func)(info);           \
-       local_irq_enable();     \
-       0;                      \
-})
 #define smp_call_function_mask(mask, func, info, wait) \
                        (up_smp_call_function(func, info))
 #define smp_call_function_many(mask, func, info, wait) \