projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| c5e63197 JO |
2 | #ifndef _LINUX_PERF_REGS_H |
| 3 | #define _LINUX_PERF_REGS_H | |
| 4 | ||
| 68db0cf1 IM |
5 | #include <linux/sched/task_stack.h> |
| 6 | ||
| 88a7c26a AL |
7 | struct perf_regs { |
| 8 | __u64 abi; | |
| 9 | struct pt_regs *regs; | |
| 10 | }; | |
| 11 | ||
| c5e63197 JO |
12 | #ifdef CONFIG_HAVE_PERF_REGS |
| 13 | #include <asm/perf_regs.h> | |
| e321d02d KL |
14 | |
| 15 | #ifndef PERF_REG_EXTENDED_MASK | |
| 16 | #define PERF_REG_EXTENDED_MASK 0 | |
| 17 | #endif | |
| 18 | ||
| c5e63197 JO |
19 | u64 perf_reg_value(struct pt_regs *regs, int idx); |
| 20 | int perf_reg_validate(u64 mask); | |
| 4018994f | 21 | u64 perf_reg_abi(struct task_struct *task); |
| 88a7c26a | 22 | void perf_get_regs_user(struct perf_regs *regs_user, |
| 76a4efa8 | 23 | struct pt_regs *regs); |
| c5e63197 | 24 | #else |
| e321d02d KL |
25 | |
| 26 | #define PERF_REG_EXTENDED_MASK 0 | |
| 27 | ||
| c5e63197 JO |
28 | static inline u64 perf_reg_value(struct pt_regs *regs, int idx) |
| 29 | { | |
| 30 | return 0; | |
| 31 | } | |
| 32 | ||
| 33 | static inline int perf_reg_validate(u64 mask) | |
| 34 | { | |
| 35 | return mask ? -ENOSYS : 0; | |
| 36 | } | |
| 4018994f JO |
37 | |
| 38 | static inline u64 perf_reg_abi(struct task_struct *task) | |
| 39 | { | |
| 40 | return PERF_SAMPLE_REGS_ABI_NONE; | |
| 41 | } | |
| 88a7c26a AL |
42 | |
| 43 | static inline void perf_get_regs_user(struct perf_regs *regs_user, | |
| 76a4efa8 | 44 | struct pt_regs *regs) |
| 88a7c26a AL |
45 | { |
| 46 | regs_user->regs = task_pt_regs(current); | |
| 47 | regs_user->abi = perf_reg_abi(current); | |
| 48 | } | |
| c5e63197 JO |
49 | #endif /* CONFIG_HAVE_PERF_REGS */ |
| 50 | #endif /* _LINUX_PERF_REGS_H */ |