LXR linux/arch/x86/um/asm/processor.h

   1#ifndef __UM_PROCESSOR_H
   2#define __UM_PROCESSOR_H
   3
   4/* include faultinfo structure */
   5#include <sysdep/faultinfo.h>
   6
   7#ifdef CONFIG_X86_32
   8# include "processor_32.h"
   9#else
  10# include "processor_64.h"
  11#endif
  12
  13#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)
  14#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP)
  15#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)
  16
  17#define ARCH_IS_STACKGROW(address) \
  18       (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))
  19
  20#include <asm/user.h>
  21
  22/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
  23static inline void rep_nop(void)
  24{
  25        __asm__ __volatile__("rep;nop": : :"memory");
  26}
  27
  28#define cpu_relax()     rep_nop()
  29
  30#include <asm/processor-generic.h>
  31
  32#endif
  33