include/asm-i386/mach-default/mach_ipi.h

   1 #ifndef __ASM_MACH_IPI_H
   2 #define __ASM_MACH_IPI_H
   3
   4 void send_IPI_mask_bitmask(cpumask_t mask, int vector);
   5 void __send_IPI_shortcut(unsigned int shortcut, int vector);
   6
   7 extern int no_broadcast;
   8
   9 static inline void send_IPI_mask(cpumask_t mask, int vector)
  10 {
  11         send_IPI_mask_bitmask(mask, vector);
  12 }
  13
  14 static inline void __local_send_IPI_allbutself(int vector)
  15 {
  16         if (no_broadcast) {
  17                 cpumask_t mask = cpu_online_map;
  18                 int this_cpu = get_cpu();
  19
  20                 cpu_clear(this_cpu, mask);
  21                 send_IPI_mask(mask, vector);
  22                 put_cpu();
  23         } else
  24                 __send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
  25 }
  26
  27 static inline void __local_send_IPI_all(int vector)
  28 {
  29         if (no_broadcast)
  30                 send_IPI_mask(cpu_online_map, vector);
  31         else
  32                 __send_IPI_shortcut(APIC_DEST_ALLINC, vector);
  33 }
  34
  35 static inline void send_IPI_allbutself(int vector)
  36 {
  37         /*
  38          * if there are no other CPUs in the system then we get an APIC send
  39          * error if we try to broadcast, thus avoid sending IPIs in this case.
  40          */
  41         if (!(num_online_cpus() > 1))
  42                 return;
  43
  44         __local_send_IPI_allbutself(vector);
  45         return;
  46 }
  47
  48 static inline void send_IPI_all(int vector)
  49 {
  50         __local_send_IPI_all(vector);
  51 }
  52
  53 #endif /* __ASM_MACH_IPI_H */