// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright 2016 Chandan Kumar, IBM Corporation.
 */

#include <errno.h>
#include <libunwind.h>
#include <asm/perf_regs.h>
#include "../../util/unwind.h"
#include "../../util/debug.h"

int libunwind__arch_reg_id(int regnum)
{
        switch (regnum) {
        case UNW_PPC64_R0:
                return PERF_REG_POWERPC_R0;
        case UNW_PPC64_R1:
                return PERF_REG_POWERPC_R1;
        case UNW_PPC64_R2:
                return PERF_REG_POWERPC_R2;
        case UNW_PPC64_R3:
                return PERF_REG_POWERPC_R3;
        case UNW_PPC64_R4:
                return PERF_REG_POWERPC_R4;
        case UNW_PPC64_R5:
                return PERF_REG_POWERPC_R5;
        case UNW_PPC64_R6:
                return PERF_REG_POWERPC_R6;
        case UNW_PPC64_R7:
                return PERF_REG_POWERPC_R7;
        case UNW_PPC64_R8:
                return PERF_REG_POWERPC_R8;
        case UNW_PPC64_R9:
                return PERF_REG_POWERPC_R9;
        case UNW_PPC64_R10:
                return PERF_REG_POWERPC_R10;
        case UNW_PPC64_R11:
                return PERF_REG_POWERPC_R11;
        case UNW_PPC64_R12:
                return PERF_REG_POWERPC_R12;
        case UNW_PPC64_R13:
                return PERF_REG_POWERPC_R13;
        case UNW_PPC64_R14:
                return PERF_REG_POWERPC_R14;
        case UNW_PPC64_R15:
                return PERF_REG_POWERPC_R15;
        case UNW_PPC64_R16:
                return PERF_REG_POWERPC_R16;
        case UNW_PPC64_R17:
                return PERF_REG_POWERPC_R17;
        case UNW_PPC64_R18:
                return PERF_REG_POWERPC_R18;
        case UNW_PPC64_R19:
                return PERF_REG_POWERPC_R19;
        case UNW_PPC64_R20:
                return PERF_REG_POWERPC_R20;
        case UNW_PPC64_R21:
                return PERF_REG_POWERPC_R21;
        case UNW_PPC64_R22:
                return PERF_REG_POWERPC_R22;
        case UNW_PPC64_R23:
                return PERF_REG_POWERPC_R23;
        case UNW_PPC64_R24:
                return PERF_REG_POWERPC_R24;
        case UNW_PPC64_R25:
                return PERF_REG_POWERPC_R25;
        case UNW_PPC64_R26:
                return PERF_REG_POWERPC_R26;
        case UNW_PPC64_R27:
                return PERF_REG_POWERPC_R27;
        case UNW_PPC64_R28:
                return PERF_REG_POWERPC_R28;
        case UNW_PPC64_R29:
                return PERF_REG_POWERPC_R29;
        case UNW_PPC64_R30:
                return PERF_REG_POWERPC_R30;
        case UNW_PPC64_R31:
                return PERF_REG_POWERPC_R31;
        case UNW_PPC64_LR:
                return PERF_REG_POWERPC_LINK;
        case UNW_PPC64_CTR:
                return PERF_REG_POWERPC_CTR;
        case UNW_PPC64_XER:
                return PERF_REG_POWERPC_XER;
        case UNW_PPC64_NIP:
                return PERF_REG_POWERPC_NIP;
        default:
                pr_err("unwind: invalid reg id %d\n", regnum);
                return -EINVAL;
        }
        return -EINVAL;
}