blob: 578ca0492cbe2cb769f0234ff4e4fce481db24f4 [file] [log] [blame]
/*
* Copyright 2003 PathScale, Inc.
*
* Licensed under the GPL
*/
#ifndef __UM_PROCESSOR_X86_64_H
#define __UM_PROCESSOR_X86_64_H
/* include faultinfo structure */
#include "sysdep/faultinfo.h"
struct arch_thread {
unsigned long debugregs[8];
int debugregs_seq;
unsigned long fs;
struct faultinfo faultinfo;
};
/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
extern inline void rep_nop(void)
{
__asm__ __volatile__("rep;nop": : :"memory");
}
#define cpu_relax() rep_nop()
#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \
.debugregs_seq = 0, \
.fs = 0, \
.faultinfo = { 0, 0, 0 } }
static inline void arch_flush_thread(struct arch_thread *thread)
{
}
static inline void arch_copy_thread(struct arch_thread *from,
struct arch_thread *to)
{
}
#include "asm/arch/user.h"
#define current_text_addr() \
({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
#define ARCH_IS_STACKGROW(address) \
(address + 128 >= UPT_SP(&current->thread.regs.regs))
#define KSTK_EIP(tsk) KSTK_REG(tsk, RIP)
#define KSTK_ESP(tsk) KSTK_REG(tsk, RSP)
#include "asm/processor-generic.h"
#endif