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 
30 struct 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 
43 struct user_fp_state {
44 	uint64_t fpr[32];
45 	uint64_t fcc;
46 	uint32_t fcsr;
47 };
48 
49 struct user_lsx_state {
50 	/* 32 registers, 128 bits width per register. */
51 	uint64_t vregs[32*2];
52 };
53 
54 struct user_lasx_state {
55 	/* 32 registers, 256 bits width per register. */
56 	uint64_t vregs[32*4];
57 };
58 
59 struct user_lbt_state {
60 	uint64_t scr[4];
61 	uint32_t eflags;
62 	uint32_t ftop;
63 };
64 
65 struct 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