fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / sigcontext_32.h
blobaaef089a7787997cbeb3df7b6a061083dc4f1e17
1 #ifndef _ASMi386_SIGCONTEXT_H
2 #define _ASMi386_SIGCONTEXT_H
4 #include <linux/compiler.h>
6 /*
7 * As documented in the iBCS2 standard..
9 * The first part of "struct _fpstate" is just the normal i387
10 * hardware setup, the extra "status" word is used to save the
11 * coprocessor status word before entering the handler.
13 * Pentium III FXSR, SSE support
14 * Gareth Hughes <gareth@valinux.com>, May 2000
16 * The FPU state data structure has had to grow to accommodate the
17 * extended FPU state required by the Streaming SIMD Extensions.
18 * There is no documented standard to accomplish this at the moment.
20 struct _fpreg {
21 unsigned short significand[4];
22 unsigned short exponent;
25 struct _fpxreg {
26 unsigned short significand[4];
27 unsigned short exponent;
28 unsigned short padding[3];
31 struct _xmmreg {
32 unsigned long element[4];
35 struct _fpstate {
36 /* Regular FPU environment */
37 unsigned long cw;
38 unsigned long sw;
39 unsigned long tag;
40 unsigned long ipoff;
41 unsigned long cssel;
42 unsigned long dataoff;
43 unsigned long datasel;
44 struct _fpreg _st[8];
45 unsigned short status;
46 unsigned short magic; /* 0xffff = regular FPU data only */
48 /* FXSR FPU environment */
49 unsigned long _fxsr_env[6]; /* FXSR FPU env is ignored */
50 unsigned long mxcsr;
51 unsigned long reserved;
52 struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */
53 struct _xmmreg _xmm[8];
54 unsigned long padding[56];
57 #define X86_FXSR_MAGIC 0x0000
59 struct sigcontext {
60 unsigned short gs, __gsh;
61 unsigned short fs, __fsh;
62 unsigned short es, __esh;
63 unsigned short ds, __dsh;
64 unsigned long edi;
65 unsigned long esi;
66 unsigned long ebp;
67 unsigned long esp;
68 unsigned long ebx;
69 unsigned long edx;
70 unsigned long ecx;
71 unsigned long eax;
72 unsigned long trapno;
73 unsigned long err;
74 unsigned long eip;
75 unsigned short cs, __csh;
76 unsigned long eflags;
77 unsigned long esp_at_signal;
78 unsigned short ss, __ssh;
79 struct _fpstate __user * fpstate;
80 unsigned long oldmask;
81 unsigned long cr2;
85 #endif