Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
9 | extern int host_has_xmm; | |
10 | extern int host_has_cmov; | |
11 | ||
c578455a BS |
12 | /* include faultinfo structure */ |
13 | #include "sysdep/faultinfo.h" | |
14 | ||
1da177e4 LT |
15 | struct arch_thread { |
16 | unsigned long debugregs[8]; | |
17 | int debugregs_seq; | |
c578455a | 18 | struct faultinfo faultinfo; |
1da177e4 LT |
19 | }; |
20 | ||
21 | #define INIT_ARCH_THREAD { .debugregs = { [ 0 ... 7 ] = 0 }, \ | |
c578455a BS |
22 | .debugregs_seq = 0, \ |
23 | .faultinfo = { 0, 0, 0 } } | |
1da177e4 LT |
24 | |
25 | #include "asm/arch/user.h" | |
26 | ||
27 | /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ | |
28 | static inline void rep_nop(void) | |
29 | { | |
30 | __asm__ __volatile__("rep;nop": : :"memory"); | |
31 | } | |
32 | ||
33 | #define cpu_relax() rep_nop() | |
34 | ||
35 | /* | |
36 | * Default implementation of macro that returns current | |
37 | * instruction pointer ("program counter"). Stolen | |
38 | * from asm-i386/processor.h | |
39 | */ | |
40 | #define current_text_addr() \ | |
41 | ({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; }) | |
42 | ||
43 | #define ARCH_IS_STACKGROW(address) \ | |
44 | (address + 32 >= UPT_SP(¤t->thread.regs.regs)) | |
45 | ||
fad1c45c AG |
46 | #define KSTK_EIP(tsk) KSTK_REG(tsk, EIP) |
47 | #define KSTK_ESP(tsk) KSTK_REG(tsk, UESP) | |
48 | #define KSTK_EBP(tsk) KSTK_REG(tsk, EBP) | |
49 | ||
1da177e4 LT |
50 | #include "asm/processor-generic.h" |
51 | ||
52 | #endif |