| 1 | |
| 2 |
|
| 3 | #include <linux/errno.h>
|
| 4 | #include <linux/kernel.h>
|
| 5 | #include <linux/perf_event.h>
|
| 6 | #include <linux/bug.h>
|
| 7 | #include <linux/sched/task_stack.h>
|
| 8 | #include <asm/perf_regs.h>
|
| 9 | #include <asm/ptrace.h>
|
| 10 |
|
| 11 | u64 perf_reg_value(struct pt_regs *regs, int idx)
|
| 12 | {
|
| 13 | if (WARN_ON_ONCE((u32)idx >= PERF_REG_ARM_MAX))
|
| 14 | return 0;
|
| 15 |
|
| 16 | return regs->uregs[idx];
|
| 17 | }
|
| 18 |
|
| 19 | #define REG_RESERVED (~((1ULL << PERF_REG_ARM_MAX) - 1))
|
| 20 |
|
| 21 | int perf_reg_validate(u64 mask, bool simd_enabled)
|
| 22 | {
|
| 23 | if (!mask || mask & REG_RESERVED)
|
| 24 | return -EINVAL;
|
| 25 |
|
| 26 | return 0;
|
| 27 | }
|
| 28 |
|
| 29 | u64 perf_reg_abi(struct task_struct *task)
|
| 30 | {
|
| 31 | return PERF_SAMPLE_REGS_ABI_32;
|
| 32 | }
|
| 33 |
|