/*
   Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.

   Permission is hereby granted, free of charge, to any person obtaining a copy
   of this software and associated documentation files (the "Software"), to deal
   in the Software without restriction, including without limitation the rights
   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   copies of the Software, and to permit persons to whom the Software is
   furnished to do so, subject to the following conditions:

   The above copyright notice and this permission notice shall be included in
   all copies or substantial portions of the Software.

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   THE SOFTWARE.
*/

#pragma once

#include <cstdint>
#include <cstring>

#include "lib/rocprofiler/pc_sampling/parser/gfx11.hpp"
#include "lib/rocprofiler/pc_sampling/parser/gfx_unknown.hpp"
#include "lib/rocprofiler/pc_sampling/parser/gfx9.hpp"
#include "lib/rocprofiler/pc_sampling/parser/parser_types.hpp"
#include "lib/rocprofiler/pc_sampling/parser/rocr.hpp"

pcsample_v1_t
copyHostTrapSample(const perf_sample_host_trap_v1& sample);

class PCSParserTranslation
{
public:
    template <typename SType>
    static pcsample_v1_t copySampleHeader(const SType& sample);

    template <typename gfx>
    static pcsample_v1_t copyStochasticSample(const perf_sample_snapshot_v1& sample);
};

#define BITSHIFT(sname) out |= ((in >> GFX::sname) & 1) << PCSAMPLE::sname

template <typename GFX>
int
translate_arb(int in)
{
    size_t out = 0;
    BITSHIFT(ISSUE_VALU);
    BITSHIFT(ISSUE_MATRIX);
    BITSHIFT(ISSUE_LDS);
    BITSHIFT(ISSUE_LDS_DIRECT);
    BITSHIFT(ISSUE_SCALAR);
    BITSHIFT(ISSUE_VMEM_TEX);
    BITSHIFT(ISSUE_FLAT);
    BITSHIFT(ISSUE_EXP);
    BITSHIFT(ISSUE_MISC);
    BITSHIFT(ISSUE_BRMSG);
    return out & 0x3FF;
}

#undef BITSHIFT

#define LUTOVERLOAD(sname) this->operator[](GFX::sname) = PCSAMPLE::sname

template <typename GFX>
class GFX_REASON_LUT : public std::array<int, 32>
{
public:
    GFX_REASON_LUT()
    {
        std::memset(data(), 0, size() * sizeof(int));
        LUTOVERLOAD(REASON_NOT_AVAILABLE);
        LUTOVERLOAD(REASON_ALU);
        LUTOVERLOAD(REASON_WAITCNT);
        LUTOVERLOAD(REASON_INTERNAL);
        LUTOVERLOAD(REASON_BARRIER);
        LUTOVERLOAD(REASON_ARBITER);
        LUTOVERLOAD(REASON_EX_STALL);
        LUTOVERLOAD(REASON_OTHER_WAIT);
        LUTOVERLOAD(REASON_SLEEP);
    }
};

template <typename GFX>
class GFX_INST_LUT : public std::array<int, 32>
{
public:
    GFX_INST_LUT()
    {
        std::memset(data(), 0, size() * sizeof(int));
        LUTOVERLOAD(TYPE_VALU);
        LUTOVERLOAD(TYPE_MATRIX);
        LUTOVERLOAD(TYPE_SCALAR);
        LUTOVERLOAD(TYPE_TEX);
        LUTOVERLOAD(TYPE_LDS);
        LUTOVERLOAD(TYPE_LDS_DIRECT);
        LUTOVERLOAD(TYPE_FLAT);
        LUTOVERLOAD(TYPE_EXP);
        LUTOVERLOAD(TYPE_MESSAGE);
        LUTOVERLOAD(TYPE_BARRIER);
        LUTOVERLOAD(TYPE_BRANCH_NOT_TAKEN);
        LUTOVERLOAD(TYPE_BRANCH_TAKEN);
        LUTOVERLOAD(TYPE_JUMP);
        LUTOVERLOAD(TYPE_OTHER);
        LUTOVERLOAD(TYPE_NO_INST);
        LUTOVERLOAD(TYPE_DUAL_VALU);
    }
};

template <typename GFX>
int
translate_reason(int in)
{
    static GFX_REASON_LUT<GFX> lut;
    return lut[in & 0xF];
}

template <typename GFX>
int
translate_inst(int in)
{
    static GFX_INST_LUT<GFX> lut;
    return lut[in & 0xF];
}

#undef LUTOVERLOAD

template <bool HostTrap, typename GFX>
inline pcsample_v1_t
copySample(const void* sample)
{
    if(HostTrap) return copyHostTrapSample(*(const perf_sample_host_trap_v1*) sample);

    pcsample_v1_t ret =
        PCSParserTranslation::copyStochasticSample<GFX>(*(const perf_sample_snapshot_v1*) sample);

    ret.snapshot.inst_type         = translate_inst<GFX>(ret.snapshot.inst_type);
    ret.snapshot.arb_state_issue   = translate_arb<GFX>(ret.snapshot.arb_state_issue);
    ret.snapshot.arb_state_stall   = translate_arb<GFX>(ret.snapshot.arb_state_stall);
    ret.snapshot.reason_not_issued = translate_reason<GFX>(ret.snapshot.reason_not_issued);

    return ret;
}