1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2/*
3 * Author: Hanlu Li <lihanlu@loongson.cn>
4 * Huacai Chen <chenhuacai@loongson.cn>
5 *
6 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
7 */
8#ifndef _ASM_SIGCONTEXT_H
9#define _ASM_SIGCONTEXT_H
10
11#include <linux/types.h>
12
13/* FP context was used */
14#define SC_USED_FP (1 << 0)
15/* Address error was due to memory load */
16#define SC_ADDRERR_RD (1 << 30)
17/* Address error was due to memory store */
18#define SC_ADDRERR_WR (1 << 31)
19
20struct sigcontext {
21 __u64 sc_pc;
22 __u64 sc_regs[32];
23 __u32 sc_flags;
24 __u64 sc_extcontext[0] __attribute__((__aligned__(16)));
25};
26
27#define CONTEXT_INFO_ALIGN 16
28struct sctx_info {
29 __u32 magic;
30 __u32 size;
31 __u64 padding; /* padding to 16 bytes */
32};
33
34/* FPU context */
35#define FPU_CTX_MAGIC 0x46505501
36#define FPU_CTX_ALIGN 8
37struct fpu_context {
38 __u64 regs[32];
39 __u64 fcc;
40 __u32 fcsr;
41};
42
43/* LSX context */
44#define LSX_CTX_MAGIC 0x53580001
45#define LSX_CTX_ALIGN 16
46struct lsx_context {
47 __u64 regs[2*32];
48 __u64 fcc;
49 __u32 fcsr;
50};
51
52/* LASX context */
53#define LASX_CTX_MAGIC 0x41535801
54#define LASX_CTX_ALIGN 32
55struct lasx_context {
56 __u64 regs[4*32];
57 __u64 fcc;
58 __u32 fcsr;
59};
60
61/* LBT context */
62#define LBT_CTX_MAGIC 0x42540001
63#define LBT_CTX_ALIGN 8
64struct lbt_context {
65 __u64 regs[4];
66 __u32 eflags;
67 __u32 ftop;
68};
69
70
71#endif /* _ASM_SIGCONTEXT_H */