Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include "perf_regs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include "event.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) int __weak arch_sdt_arg_parse_op(char *old_op __maybe_unused,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 				 char **new_op __maybe_unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	return SDT_ARG_SKIP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) uint64_t __weak arch__intr_reg_mask(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	return PERF_REGS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) uint64_t __weak arch__user_reg_mask(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	return PERF_REGS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #ifdef HAVE_PERF_REGS_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	int i, idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	u64 mask = regs->mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	if (regs->cache_mask & (1ULL << id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	if (!(mask & (1ULL << id)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	for (i = 0; i < id; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		if (mask & (1ULL << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			idx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	regs->cache_mask |= (1ULL << id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	regs->cache_regs[id] = regs->regs[idx];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	*valp = regs->cache_regs[id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #endif