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1// SPDX-License-Identifier: GPL-2.02#include <errno.h>3#include <string.h>4#include "perf_regs.h"5#include "util/sample.h"6#include "debug.h"7 8int __weak arch_sdt_arg_parse_op(char *old_op __maybe_unused,9				 char **new_op __maybe_unused)10{11	return SDT_ARG_SKIP;12}13 14uint64_t __weak arch__intr_reg_mask(void)15{16	return 0;17}18 19uint64_t __weak arch__user_reg_mask(void)20{21	return 0;22}23 24static const struct sample_reg sample_reg_masks[] = {25	SMPL_REG_END26};27 28const struct sample_reg * __weak arch__sample_reg_masks(void)29{30	return sample_reg_masks;31}32 33const char *perf_reg_name(int id, const char *arch)34{35	const char *reg_name = NULL;36 37	if (!strcmp(arch, "csky"))38		reg_name = __perf_reg_name_csky(id);39	else if (!strcmp(arch, "loongarch"))40		reg_name = __perf_reg_name_loongarch(id);41	else if (!strcmp(arch, "mips"))42		reg_name = __perf_reg_name_mips(id);43	else if (!strcmp(arch, "powerpc"))44		reg_name = __perf_reg_name_powerpc(id);45	else if (!strcmp(arch, "riscv"))46		reg_name = __perf_reg_name_riscv(id);47	else if (!strcmp(arch, "s390"))48		reg_name = __perf_reg_name_s390(id);49	else if (!strcmp(arch, "x86"))50		reg_name = __perf_reg_name_x86(id);51	else if (!strcmp(arch, "arm"))52		reg_name = __perf_reg_name_arm(id);53	else if (!strcmp(arch, "arm64"))54		reg_name = __perf_reg_name_arm64(id);55 56	return reg_name ?: "unknown";57}58 59int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)60{61	int i, idx = 0;62	u64 mask = regs->mask;63 64	if ((u64)id >= PERF_SAMPLE_REGS_CACHE_SIZE)65		return -EINVAL;66 67	if (regs->cache_mask & (1ULL << id))68		goto out;69 70	if (!(mask & (1ULL << id)))71		return -EINVAL;72 73	for (i = 0; i < id; i++) {74		if (mask & (1ULL << i))75			idx++;76	}77 78	regs->cache_mask |= (1ULL << id);79	regs->cache_regs[id] = regs->regs[idx];80 81out:82	*valp = regs->cache_regs[id];83	return 0;84}85 86uint64_t perf_arch_reg_ip(const char *arch)87{88	if (!strcmp(arch, "arm"))89		return __perf_reg_ip_arm();90	else if (!strcmp(arch, "arm64"))91		return __perf_reg_ip_arm64();92	else if (!strcmp(arch, "csky"))93		return __perf_reg_ip_csky();94	else if (!strcmp(arch, "loongarch"))95		return __perf_reg_ip_loongarch();96	else if (!strcmp(arch, "mips"))97		return __perf_reg_ip_mips();98	else if (!strcmp(arch, "powerpc"))99		return __perf_reg_ip_powerpc();100	else if (!strcmp(arch, "riscv"))101		return __perf_reg_ip_riscv();102	else if (!strcmp(arch, "s390"))103		return __perf_reg_ip_s390();104	else if (!strcmp(arch, "x86"))105		return __perf_reg_ip_x86();106 107	pr_err("Fail to find IP register for arch %s, returns 0\n", arch);108	return 0;109}110 111uint64_t perf_arch_reg_sp(const char *arch)112{113	if (!strcmp(arch, "arm"))114		return __perf_reg_sp_arm();115	else if (!strcmp(arch, "arm64"))116		return __perf_reg_sp_arm64();117	else if (!strcmp(arch, "csky"))118		return __perf_reg_sp_csky();119	else if (!strcmp(arch, "loongarch"))120		return __perf_reg_sp_loongarch();121	else if (!strcmp(arch, "mips"))122		return __perf_reg_sp_mips();123	else if (!strcmp(arch, "powerpc"))124		return __perf_reg_sp_powerpc();125	else if (!strcmp(arch, "riscv"))126		return __perf_reg_sp_riscv();127	else if (!strcmp(arch, "s390"))128		return __perf_reg_sp_s390();129	else if (!strcmp(arch, "x86"))130		return __perf_reg_sp_x86();131 132	pr_err("Fail to find SP register for arch %s, returns 0\n", arch);133	return 0;134}135