/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ #ifndef __UM_PROCESSOR_I386_H#define __UM_PROCESSOR_I386_H #include "linux/string.h"#include "asm/host_ldt.h"#include "asm/segment.h" extern int host_has_xmm;extern int host_has_cmov; /* include faultinfo structure */#include "sysdep/faultinfo.h" struct uml_tls_struct {	struct user_desc tls;	unsigned flushed:1;	unsigned present:1;}; struct arch_thread {	struct uml_tls_struct tls_array[GDT_ENTRY_TLS_ENTRIES];	unsigned long debugregs[8];	int debugregs_seq;	struct faultinfo faultinfo;}; #define INIT_ARCH_THREAD { \	.tls_array  		= { [ 0 ... GDT_ENTRY_TLS_ENTRIES - 1 ] = \				    { .present = 0, .flushed = 0 } }, \	.debugregs  		= { [ 0 ... 7 ] = 0 }, \	.debugregs_seq		= 0, \	.faultinfo		= { 0, 0, 0 } \} static inline void arch_flush_thread(struct arch_thread *thread){	/* Clear any TLS still hanging */	memset(&thread->tls_array, 0, sizeof(thread->tls_array));} static inline void arch_copy_thread(struct arch_thread *from,                                    struct arch_thread *to){        memcpy(&to->tls_array, &from->tls_array, sizeof(from->tls_array));} #include "asm/arch/user.h" /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */static inline void rep_nop(void){	__asm__ __volatile__("rep;nop": : :"memory");} #define cpu_relax()	rep_nop() /* * Default implementation of macro that returns current * instruction pointer ("program counter"). Stolen * from asm-i386/processor.h */#define current_text_addr() \	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; }) #define ARCH_IS_STACKGROW(address) \       (address + 32 >= UPT_SP(&current->thread.regs.regs)) #define KSTK_EIP(tsk) KSTK_REG(tsk, EIP)#define KSTK_ESP(tsk) KSTK_REG(tsk, UESP)#define KSTK_EBP(tsk) KSTK_REG(tsk, EBP) #include "asm/processor-generic.h" #endif