summaryrefslogtreecommitdiff
path: root/include/asm-um/processor-x86_64.h
blob: a1ae3a4cd93810ecc1dd07538ba1910ed148c096 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/*
 * Copyright 2003 PathScale, Inc.
 *
 * Licensed under the GPL
 */

#ifndef __UM_PROCESSOR_X86_64_H
#define __UM_PROCESSOR_X86_64_H

#include "asm/arch/user.h"

struct arch_thread {
};

/* 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 { }

#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))

#include "asm/processor-generic.h"

#endif

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-file-style: "linux"
 * End:
 */