include/asm-arm/arch-realview/smp.h

   1 #ifndef ASMARM_ARCH_SMP_H
   2 #define ASMARM_ARCH_SMP_H
   3
   4 #include <linux/config.h>
   5
   6 #include <asm/hardware/gic.h>
   7
   8 #define hard_smp_processor_id()                 \
   9         ({                                              \
  10                 unsigned int cpunum;                    \
  11                 __asm__("mrc p15, 0, %0, c0, c0, 5"     \
  12                         : "=r" (cpunum));               \
  13                 cpunum &= 0x0F;                         \
  14         })
  15
  16 /*
  17  * We use IRQ1 as the IPI
  18  */
  19 static inline void smp_cross_call(cpumask_t callmap)
  20 {
  21         gic_raise_softirq(callmap, 1);
  22 }
  23
  24 /*
  25  * Do nothing on MPcore.
  26  */
  27 static inline void smp_cross_call_done(cpumask_t callmap)
  28 {
  29 }
  30
  31 #endif