1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_REGS_H
3#define __PERF_REGS_H
4
5#include <linux/types.h>
6#include <linux/compiler.h>
7
8struct regs_dump;
9
10struct sample_reg {
11	const char *name;
12	uint64_t mask;
13};
14#define SMPL_REG(n, b) { .name = #n, .mask = 1ULL << (b) }
15#define SMPL_REG2(n, b) { .name = #n, .mask = 3ULL << (b) }
16#define SMPL_REG_END { .name = NULL }
17
18enum {
19	SDT_ARG_VALID = 0,
20	SDT_ARG_SKIP,
21};
22
23int arch_sdt_arg_parse_op(char *old_op, char **new_op);
24uint64_t arch__intr_reg_mask(void);
25uint64_t arch__user_reg_mask(void);
26
27#ifdef HAVE_PERF_REGS_SUPPORT
28extern const struct sample_reg sample_reg_masks[];
29
30#include <perf_regs.h>
31
32#define DWARF_MINIMAL_REGS ((1ULL << PERF_REG_IP) | (1ULL << PERF_REG_SP))
33
34int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
35
36static inline const char *perf_reg_name(int id)
37{
38	const char *reg_name = __perf_reg_name(id);
39
40	return reg_name ?: "unknown";
41}
42
43#else
44#define PERF_REGS_MASK	0
45#define PERF_REGS_MAX	0
46
47#define DWARF_MINIMAL_REGS PERF_REGS_MASK
48
49static inline const char *perf_reg_name(int id __maybe_unused)
50{
51	return "unknown";
52}
53
54static inline int perf_reg_value(u64 *valp __maybe_unused,
55				 struct regs_dump *regs __maybe_unused,
56				 int id __maybe_unused)
57{
58	return 0;
59}
60#endif /* HAVE_PERF_REGS_SUPPORT */
61#endif /* __PERF_REGS_H */
62