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_PTRACE_H
 9#define _ASM_PTRACE_H
10
11#include <linux/types.h>
12
13#include <stdint.h>
14
15/*
16 * For PTRACE_{POKE,PEEK}USR. 0 - 31 are GPRs,
17 * 32 is syscall's original ARG0, 33 is PC, 34 is BADVADDR.
18 */
19#define GPR_BASE	0
20#define GPR_NUM		32
21#define GPR_END		(GPR_BASE + GPR_NUM - 1)
22#define ARG0		(GPR_END + 1)
23#define PC		(GPR_END + 2)
24#define BADVADDR	(GPR_END + 3)
25
26#define NUM_FPU_REGS	32
27
28struct user_pt_regs {
29	/* Main processor registers. */
30	unsigned long regs[32];
31
32	/* Original syscall arg0. */
33	unsigned long orig_a0;
34
35	/* Special CSR registers. */
36	unsigned long csr_era;
37	unsigned long csr_badv;
38	unsigned long reserved[10];
39} __attribute__((aligned(8)));
40
41struct user_fp_state {
42	uint64_t fpr[32];
43	uint64_t fcc;
44	uint32_t fcsr;
45};
46
47struct user_lsx_state {
48	/* 32 registers, 128 bits width per register. */
49	uint64_t vregs[32*2];
50};
51
52struct user_lasx_state {
53	/* 32 registers, 256 bits width per register. */
54	uint64_t vregs[32*4];
55};
56
57struct user_lbt_state {
58	uint64_t scr[4];
59	uint32_t eflags;
60	uint32_t ftop;
61};
62
63struct user_watch_state {
64	uint64_t dbg_info;
65	struct {
66		uint64_t    addr;
67		uint64_t    mask;
68		uint32_t    ctrl;
69		uint32_t    pad;
70	} dbg_regs[8];
71};
72
73struct user_watch_state_v2 {
74	uint64_t dbg_info;
75	struct {
76		uint64_t    addr;
77		uint64_t    mask;
78		uint32_t    ctrl;
79		uint32_t    pad;
80	} dbg_regs[14];
81};
82
83#define PTRACE_SYSEMU			0x1f
84#define PTRACE_SYSEMU_SINGLESTEP	0x20
85
86#endif /* _ASM_PTRACE_H */