1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License.  See the file "COPYING" in the main directory of this archive
5 * for more details.
6 *
7 * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 */
10#ifndef _UAPI_ASM_PTRACE_H
11#define _UAPI_ASM_PTRACE_H
12
13#include <linux/types.h>
14
15/* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
16#define FPR_BASE	32
17#define PC		64
18#define CAUSE		65
19#define BADVADDR	66
20#define MMHI		67
21#define MMLO		68
22#define FPC_CSR		69
23#define FPC_EIR		70
24#define DSP_BASE	71		/* 3 more hi / lo register pairs */
25#define DSP_CONTROL	77
26#define ACX		78
27
28/*
29 * This struct defines the registers as used by PTRACE_{GET,SET}REGS. The
30 * format is the same for both 32- and 64-bit processes. Registers for 32-bit
31 * processes are sign extended.
32 */
33#ifdef __KERNEL__
34struct user_pt_regs {
35#else
36struct pt_regs {
37#endif
38	/* Saved main processor registers. */
39	__u64 regs[32];
40
41	/* Saved special registers. */
42	__u64 lo;
43	__u64 hi;
44	__u64 cp0_epc;
45	__u64 cp0_badvaddr;
46	__u64 cp0_status;
47	__u64 cp0_cause;
48} __attribute__ ((aligned (8)));
49
50/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
51#define PTRACE_GETREGS		12
52#define PTRACE_SETREGS		13
53#define PTRACE_GETFPREGS		14
54#define PTRACE_SETFPREGS		15
55/* #define PTRACE_GETFPXREGS		18 */
56/* #define PTRACE_SETFPXREGS		19 */
57
58#define PTRACE_OLDSETOPTIONS	21
59
60#define PTRACE_GET_THREAD_AREA	25
61#define PTRACE_SET_THREAD_AREA	26
62
63/* Calls to trace a 64bit program from a 32bit program.	 */
64#define PTRACE_PEEKTEXT_3264	0xc0
65#define PTRACE_PEEKDATA_3264	0xc1
66#define PTRACE_POKETEXT_3264	0xc2
67#define PTRACE_POKEDATA_3264	0xc3
68#define PTRACE_GET_THREAD_AREA_3264	0xc4
69
70/* Read and write watchpoint registers.	 */
71enum pt_watch_style {
72	pt_watch_style_mips32,
73	pt_watch_style_mips64
74};
75struct mips32_watch_regs {
76	unsigned int watchlo[8];
77	/* Lower 16 bits of watchhi. */
78	unsigned short watchhi[8];
79	/* Valid mask and I R W bits.
80	 * bit 0 -- 1 if W bit is usable.
81	 * bit 1 -- 1 if R bit is usable.
82	 * bit 2 -- 1 if I bit is usable.
83	 * bits 3 - 11 -- Valid watchhi mask bits.
84	 */
85	unsigned short watch_masks[8];
86	/* The number of valid watch register pairs.  */
87	unsigned int num_valid;
88} __attribute__((aligned(8)));
89
90struct mips64_watch_regs {
91	unsigned long long watchlo[8];
92	unsigned short watchhi[8];
93	unsigned short watch_masks[8];
94	unsigned int num_valid;
95} __attribute__((aligned(8)));
96
97struct pt_watch_regs {
98	enum pt_watch_style style;
99	union {
100		struct mips32_watch_regs mips32;
101		struct mips64_watch_regs mips64;
102	};
103};
104
105#define PTRACE_GET_WATCH_REGS	0xd0
106#define PTRACE_SET_WATCH_REGS	0xd1
107
108
109#endif /* _UAPI_ASM_PTRACE_H */
110