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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Regents of the University of California
4 */
5
6#ifndef _ASM_RISCV_PTRACE_H
7#define _ASM_RISCV_PTRACE_H
8
9#include <uapi/asm/ptrace.h>
10#include <asm/csr.h>
11
12#ifndef __ASSEMBLY__
13
14struct pt_regs {
15 unsigned long sepc;
16 unsigned long ra;
17 unsigned long sp;
18 unsigned long gp;
19 unsigned long tp;
20 unsigned long t0;
21 unsigned long t1;
22 unsigned long t2;
23 unsigned long s0;
24 unsigned long s1;
25 unsigned long a0;
26 unsigned long a1;
27 unsigned long a2;
28 unsigned long a3;
29 unsigned long a4;
30 unsigned long a5;
31 unsigned long a6;
32 unsigned long a7;
33 unsigned long s2;
34 unsigned long s3;
35 unsigned long s4;
36 unsigned long s5;
37 unsigned long s6;
38 unsigned long s7;
39 unsigned long s8;
40 unsigned long s9;
41 unsigned long s10;
42 unsigned long s11;
43 unsigned long t3;
44 unsigned long t4;
45 unsigned long t5;
46 unsigned long t6;
47 /* Supervisor CSRs */
48 unsigned long sstatus;
49 unsigned long sbadaddr;
50 unsigned long scause;
51 /* a0 value before the syscall */
52 unsigned long orig_a0;
53};
54
55#ifdef CONFIG_64BIT
56#define REG_FMT "%016lx"
57#else
58#define REG_FMT "%08lx"
59#endif
60
61#define user_mode(regs) (((regs)->sstatus & SR_SPP) == 0)
62
63
64/* Helpers for working with the instruction pointer */
65static inline unsigned long instruction_pointer(struct pt_regs *regs)
66{
67 return regs->sepc;
68}
69static inline void instruction_pointer_set(struct pt_regs *regs,
70 unsigned long val)
71{
72 regs->sepc = val;
73}
74
75#define profile_pc(regs) instruction_pointer(regs)
76
77/* Helpers for working with the user stack pointer */
78static inline unsigned long user_stack_pointer(struct pt_regs *regs)
79{
80 return regs->sp;
81}
82static inline void user_stack_pointer_set(struct pt_regs *regs,
83 unsigned long val)
84{
85 regs->sp = val;
86}
87
88/* Helpers for working with the frame pointer */
89static inline unsigned long frame_pointer(struct pt_regs *regs)
90{
91 return regs->s0;
92}
93static inline void frame_pointer_set(struct pt_regs *regs,
94 unsigned long val)
95{
96 regs->s0 = val;
97}
98
99static inline unsigned long regs_return_value(struct pt_regs *regs)
100{
101 return regs->a0;
102}
103
104#endif /* __ASSEMBLY__ */
105
106#endif /* _ASM_RISCV_PTRACE_H */