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-rw-r--r--include/asm-um/processor-i386.h54
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diff --git a/include/asm-um/processor-i386.h b/include/asm-um/processor-i386.h
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1/*
2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6#ifndef __UM_PROCESSOR_I386_H
7#define __UM_PROCESSOR_I386_H
8
9extern int host_has_xmm;
10extern int host_has_cmov;
11
12struct arch_thread {
13 unsigned long debugregs[8];
14 int debugregs_seq;
15};
16
17#define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \
18 .debugregs_seq = 0 }
19
20#include "asm/arch/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/*
31 * Default implementation of macro that returns current
32 * instruction pointer ("program counter"). Stolen
33 * from asm-i386/processor.h
34 */
35#define current_text_addr() \
36 ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
37
38#define ARCH_IS_STACKGROW(address) \
39 (address + 32 >= UPT_SP(&current->thread.regs.regs))
40
41#include "asm/processor-generic.h"
42
43#endif
44
45/*
46 * Overrides for Emacs so that we follow Linus's tabbing style.
47 * Emacs will notice this stuff at the end of the file and automatically
48 * adjust the settings for this buffer only. This must remain at the end
49 * of the file.
50 * ---------------------------------------------------------------------------
51 * Local variables:
52 * c-file-style: "linux"
53 * End:
54 */