cp/include/cpu.h

   1 /*
   2  * (C) Copyright 2007-2010  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
   3  *
   4  * This file is released under the GPLv2.  See the COPYING file for more
   5  * details.
   6  */
   7
   8 #ifndef __CPU_H
   9 #define __CPU_H
  10
  11 static inline u64 getcpuid()
  12 {
  13         u64 cpuid = ~0;
  14
  15         asm("stidp      0(%1)\n"
  16         : /* output */
  17           "=m" (cpuid)
  18         : /* input */
  19           "a" (&cpuid)
  20         );
  21
  22         return cpuid;
  23 }
  24
  25 static inline u16 getcpuaddr()
  26 {
  27         u16 cpuaddr = ~0;
  28
  29         asm("stap       0(%1)\n"
  30         : /* output */
  31           "=m" (cpuaddr)
  32         : /* input */
  33           "a" (&cpuaddr)
  34         );
  35
  36         return cpuaddr;
  37 }
  38
  39 #endif