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
15#define SMPL_REG_MASK(b) (1ULL << (b))
16#define SMPL_REG(n, b) { .name = #n, .mask = SMPL_REG_MASK(b) }
17#define SMPL_REG2_MASK(b) (3ULL << (b))
18#define SMPL_REG2(n, b) { .name = #n, .mask = SMPL_REG2_MASK(b) }
19#define SMPL_REG_END { .name = NULL }
20
21enum {
22	SDT_ARG_VALID = 0,
23	SDT_ARG_SKIP,
24};
25
26int arch_sdt_arg_parse_op(char *old_op, char **new_op);
27uint64_t arch__intr_reg_mask(void);
28uint64_t arch__user_reg_mask(void);
29
30#ifdef HAVE_PERF_REGS_SUPPORT
31extern const struct sample_reg sample_reg_masks[];
32
33#include <perf_regs.h>
34
35#define DWARF_MINIMAL_REGS ((1ULL << PERF_REG_IP) | (1ULL << PERF_REG_SP))
36
37const char *perf_reg_name(int id, const char *arch);
38int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
39
40#else
41#define PERF_REGS_MASK	0
42#define PERF_REGS_MAX	0
43
44#define DWARF_MINIMAL_REGS PERF_REGS_MASK
45
46static inline const char *perf_reg_name(int id __maybe_unused, const char *arch __maybe_unused)
47{
48	return "unknown";
49}
50
51static inline int perf_reg_value(u64 *valp __maybe_unused,
52				 struct regs_dump *regs __maybe_unused,
53				 int id __maybe_unused)
54{
55	return 0;
56}
57#endif /* HAVE_PERF_REGS_SUPPORT */
58#endif /* __PERF_REGS_H */