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 #include <linux/compiler.h>
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 
41 typedef struct
42 {
43         unsigned long mask;
44         unsigned long addr;
45 } __attribute__ ((aligned(8))) _psw_t;
46 
47 typedef struct
48 {
49 	_psw_t psw;
50 	unsigned long gprs[__NUM_GPRS];
51 	unsigned int  acrs[__NUM_ACRS];
52 } _s390_regs_common;
53 
54 typedef struct
55 {
56 	unsigned int fpc;
57 	unsigned int pad;
58 	double   fprs[__NUM_FPRS];
59 } _s390_fp_regs;
60 
61 typedef struct
62 {
63 	_s390_regs_common regs;
64 	_s390_fp_regs     fpregs;
65 } _sigregs;
66 
67 typedef 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 
77 struct sigcontext
78 {
79 	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
80 	_sigregs        __user *sregs;
81 };
82 
83 
84 #endif
85 
86