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 _UAPI_ASM_SIGCONTEXT_H
9#define _UAPI_ASM_SIGCONTEXT_H
10
11#include <linux/types.h>
12#include <linux/posix_types.h>
13
14/* FP context was used */
15#define SC_USED_FP		(1 << 0)
16/* Address error was due to memory load */
17#define SC_ADDRERR_RD		(1 << 30)
18/* Address error was due to memory store */
19#define SC_ADDRERR_WR		(1 << 31)
20
21struct sigcontext {
22	__u64	sc_pc;
23	__u64	sc_regs[32];
24	__u32	sc_flags;
25	__u64	sc_extcontext[0] __attribute__((__aligned__(16)));
26};
27
28#define CONTEXT_INFO_ALIGN	16
29struct sctx_info {
30	__u32	magic;
31	__u32	size;
32	__u64	padding;	/* padding to 16 bytes */
33};
34
35/* FPU context */
36#define FPU_CTX_MAGIC		0x46505501
37#define FPU_CTX_ALIGN		8
38struct fpu_context {
39	__u64	regs[32];
40	__u64	fcc;
41	__u32	fcsr;
42};
43
44/* LSX context */
45#define LSX_CTX_MAGIC		0x53580001
46#define LSX_CTX_ALIGN		16
47struct lsx_context {
48	__u64	regs[2*32];
49	__u64	fcc;
50	__u32	fcsr;
51};
52
53/* LASX context */
54#define LASX_CTX_MAGIC		0x41535801
55#define LASX_CTX_ALIGN		32
56struct lasx_context {
57	__u64	regs[4*32];
58	__u64	fcc;
59	__u32	fcsr;
60};
61
62/* LBT context */
63#define LBT_CTX_MAGIC		0x42540001
64#define LBT_CTX_ALIGN		8
65struct lbt_context {
66	__u64	regs[4];
67	__u32	eflags;
68	__u32	ftop;
69};
70
71
72#endif /* _UAPI_ASM_SIGCONTEXT_H */
73