1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
7  * Copyright (C) 1999 Silicon Graphics, Inc.
8  */
9 #ifndef _UAPI_ASM_SIGCONTEXT_H
10 #define _UAPI_ASM_SIGCONTEXT_H
11 
12 #include <linux/types.h>
13 #include <asm/sgidefs.h>
14 
15 /* scalar FP context was used */
16 #define USED_FP			(1 << 0)
17 
18 /* the value of Status.FR when context was saved */
19 #define USED_FR1		(1 << 1)
20 
21 /* FR=1, but with odd singles in bits 63:32 of preceding even double */
22 #define USED_HYBRID_FPRS	(1 << 2)
23 
24 /* extended context was used, see struct extcontext for details */
25 #define USED_EXTCONTEXT		(1 << 3)
26 
27 #if _MIPS_SIM == _MIPS_SIM_ABI32
28 
29 /*
30  * Keep this struct definition in sync with the sigcontext fragment
31  * in arch/mips/kernel/asm-offsets.c
32  */
33 struct sigcontext {
34 	unsigned int		sc_regmask;	/* Unused */
35 	unsigned int		sc_status;	/* Unused */
36 	unsigned long long	sc_pc;
37 	unsigned long long	sc_regs[32];
38 	unsigned long long	sc_fpregs[32];
39 	unsigned int		sc_acx;		/* Was sc_ownedfp */
40 	unsigned int		sc_fpc_csr;
41 	unsigned int		sc_fpc_eir;	/* Unused */
42 	unsigned int		sc_used_math;
43 	unsigned int		sc_dsp;		/* dsp status, was sc_ssflags */
44 	unsigned long long	sc_mdhi;
45 	unsigned long long	sc_mdlo;
46 	unsigned long		sc_hi1;		/* Was sc_cause */
47 	unsigned long		sc_lo1;		/* Was sc_badvaddr */
48 	unsigned long		sc_hi2;		/* Was sc_sigset[4] */
49 	unsigned long		sc_lo2;
50 	unsigned long		sc_hi3;
51 	unsigned long		sc_lo3;
52 };
53 
54 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
55 
56 #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
57 
58 #include <linux/posix_types.h>
59 /*
60  * Keep this struct definition in sync with the sigcontext fragment
61  * in arch/mips/kernel/asm-offsets.c
62  *
63  * Warning: this structure illdefined with sc_badvaddr being just an unsigned
64  * int so it was changed to unsigned long in 2.6.0-test1.  This may break
65  * binary compatibility - no prisoners.
66  * DSP ASE in 2.6.12-rc4.  Turn sc_mdhi and sc_mdlo into an array of four
67  * entries, add sc_dsp and sc_reserved for padding.  No prisoners.
68  */
69 struct sigcontext {
70 	__u64	sc_regs[32];
71 	__u64	sc_fpregs[32];
72 	__u64	sc_mdhi;
73 	__u64	sc_hi1;
74 	__u64	sc_hi2;
75 	__u64	sc_hi3;
76 	__u64	sc_mdlo;
77 	__u64	sc_lo1;
78 	__u64	sc_lo2;
79 	__u64	sc_lo3;
80 	__u64	sc_pc;
81 	__u32	sc_fpc_csr;
82 	__u32	sc_used_math;
83 	__u32	sc_dsp;
84 	__u32	sc_reserved;
85 };
86 
87 
88 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
89 
90 #endif /* _UAPI_ASM_SIGCONTEXT_H */
91