mma_gfx906.hpp

/***************************************************************************************************
 * Copyright (c) 2023 - 2025 Hygon Information Technology Co., Ltd. All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause
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#pragma once

#include <hute/config.hpp>

#include <hute/arch/mma.hpp>

namespace hute
{

struct GFX906_DP4A
{
  using DRegisters = int32_t[1];
  using ARegisters = uint32_t[1];
  using BRegisters = uint32_t[1];
  using CRegisters = int32_t[1];

  HUTE_HOST_DEVICE static void
  fma(int32_t& d, uint32_t const& a, uint32_t const& b, int32_t const& c)
  {
    #if defined(__HIPCC__)
        asm volatile("v_dot4_i32_i8 %0, %1, %2, %3;"
                    : "=v"(d)
                    : "v"(a), "v"(b), "v"(c));
    #endif
  }
};

////////////////////////////////////////////////////////////////////////////////////////////////////

//
// 1x1x2 half mix
//

struct GFX906_DP2A
{
  using DRegisters = float[1];
  using ARegisters = uint32_t[1];
  using BRegisters = uint32_t[1];
  using CRegisters = float[1];

  HUTE_HOST_DEVICE static void
  fma(float& d, uint32_t const& a, uint32_t const& b, float const& c)
  {
#if defined(__HIPCC__)
      asm volatile("v_dot2_f32_f16 %0,%1,%2,%3\n\t"
                :"=v"(d)
                :"v"(a),"v"(b),"v"(c));
#endif
  }
};

////////////////////////////////////////////////////////////////////////////////////////////////////

} // end namespace hute