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_PTRACE_H
9#define _UAPI_ASM_PTRACE_H
10
11#include <linux/types.h>
12
13#ifndef __KERNEL__
14#include <stdint.h>
15#endif
16
17/*
18 * For PTRACE_{POKE,PEEK}USR. 0 - 31 are GPRs,
19 * 32 is syscall's original ARG0, 33 is PC, 34 is BADVADDR.
20 */
21#define GPR_BASE	0
22#define GPR_NUM		32
23#define GPR_END		(GPR_BASE + GPR_NUM - 1)
24#define ARG0		(GPR_END + 1)
25#define PC		(GPR_END + 2)
26#define BADVADDR	(GPR_END + 3)
27
28#define NUM_FPU_REGS	32
29
30struct user_pt_regs {
31	/* Main processor registers. */
32	unsigned long regs[32];
33
34	/* Original syscall arg0. */
35	unsigned long orig_a0;
36
37	/* Special CSR registers. */
38	unsigned long csr_era;
39	unsigned long csr_badv;
40	unsigned long reserved[10];
41} __attribute__((aligned(8)));
42
43struct user_fp_state {
44	uint64_t fpr[32];
45	uint64_t fcc;
46	uint32_t fcsr;
47};
48
49struct user_lsx_state {
50	/* 32 registers, 128 bits width per register. */
51	uint64_t vregs[32*2];
52};
53
54struct user_lasx_state {
55	/* 32 registers, 256 bits width per register. */
56	uint64_t vregs[32*4];
57};
58
59struct user_lbt_state {
60	uint64_t scr[4];
61	uint32_t eflags;
62	uint32_t ftop;
63};
64
65struct user_watch_state {
66	uint64_t dbg_info;
67	struct {
68		uint64_t    addr;
69		uint64_t    mask;
70		uint32_t    ctrl;
71		uint32_t    pad;
72	} dbg_regs[8];
73};
74
75#define PTRACE_SYSEMU			0x1f
76#define PTRACE_SYSEMU_SINGLESTEP	0x20
77
78#endif /* _UAPI_ASM_PTRACE_H */
79