1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/*
 3 *  S390 version
 4 *    Copyright IBM Corp. 1999, 2000
 5 */
 6
 7#ifndef _ASM_S390_SIGCONTEXT_H
 8#define _ASM_S390_SIGCONTEXT_H
 9
10
11#include <linux/types.h>
12
13#define __NUM_GPRS		16
14#define __NUM_FPRS		16
15#define __NUM_ACRS		16
16#define __NUM_VXRS		32
17#define __NUM_VXRS_LOW		16
18#define __NUM_VXRS_HIGH		16
19
20#ifndef __s390x__
21
22/* Has to be at least _NSIG_WORDS from asm/signal.h */
23#define _SIGCONTEXT_NSIG	64
24#define _SIGCONTEXT_NSIG_BPW	32
25/* Size of stack frame allocated when calling signal handler. */
26#define __SIGNAL_FRAMESIZE	96
27
28#else /* __s390x__ */
29
30/* Has to be at least _NSIG_WORDS from asm/signal.h */
31#define _SIGCONTEXT_NSIG	64
32#define _SIGCONTEXT_NSIG_BPW	64 
33/* Size of stack frame allocated when calling signal handler. */
34#define __SIGNAL_FRAMESIZE	160
35
36#endif /* __s390x__ */
37
38#define _SIGCONTEXT_NSIG_WORDS	(_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
39#define _SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
40
41typedef struct 
42{
43        unsigned long mask;
44        unsigned long addr;
45} __attribute__ ((aligned(8))) _psw_t;
46
47typedef struct
48{
49	_psw_t psw;
50	unsigned long gprs[__NUM_GPRS];
51	unsigned int  acrs[__NUM_ACRS];
52} _s390_regs_common;
53
54typedef struct
55{
56	unsigned int fpc;
57	unsigned int pad;
58	double   fprs[__NUM_FPRS];
59} _s390_fp_regs;
60
61typedef struct
62{
63	_s390_regs_common regs;
64	_s390_fp_regs     fpregs;
65} _sigregs;
66
67typedef struct
68{
69#ifndef __s390x__
70	unsigned long gprs_high[__NUM_GPRS];
71#endif
72	unsigned long long vxrs_low[__NUM_VXRS_LOW];
73	__vector128 vxrs_high[__NUM_VXRS_HIGH];
74	unsigned char __reserved[128];
75} _sigregs_ext;
76
77struct sigcontext
78{
79	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
80	_sigregs        *sregs;
81};
82
83
84#endif