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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
5 * for more details.
6 *
7 * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
8 * Copyright (C) 1999 Silicon Graphics, Inc.
9 */
10#ifndef _UAPI_ASM_SIGCONTEXT_H
11#define _UAPI_ASM_SIGCONTEXT_H
12
13#include <linux/types.h>
14#include <asm/sgidefs.h>
15
16/* scalar FP context was used */
17#define USED_FP (1 << 0)
18
19/* the value of Status.FR when context was saved */
20#define USED_FR1 (1 << 1)
21
22/* FR=1, but with odd singles in bits 63:32 of preceding even double */
23#define USED_HYBRID_FPRS (1 << 2)
24
25/* extended context was used, see struct extcontext for details */
26#define USED_EXTCONTEXT (1 << 3)
27
28#if _MIPS_SIM == _MIPS_SIM_ABI32
29
30/*
31 * Keep this struct definition in sync with the sigcontext fragment
32 * in arch/mips/kernel/asm-offsets.c
33 */
34struct sigcontext {
35 unsigned int sc_regmask; /* Unused */
36 unsigned int sc_status; /* Unused */
37 unsigned long long sc_pc;
38 unsigned long long sc_regs[32];
39 unsigned long long sc_fpregs[32];
40 unsigned int sc_acx; /* Was sc_ownedfp */
41 unsigned int sc_fpc_csr;
42 unsigned int sc_fpc_eir; /* Unused */
43 unsigned int sc_used_math;
44 unsigned int sc_dsp; /* dsp status, was sc_ssflags */
45 unsigned long long sc_mdhi;
46 unsigned long long sc_mdlo;
47 unsigned long sc_hi1; /* Was sc_cause */
48 unsigned long sc_lo1; /* Was sc_badvaddr */
49 unsigned long sc_hi2; /* Was sc_sigset[4] */
50 unsigned long sc_lo2;
51 unsigned long sc_hi3;
52 unsigned long sc_lo3;
53};
54
55#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
56
57#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
58
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 */
69struct 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 */