copy_traits_sm50.hpp

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#pragma once

#include <cute/arch/copy_sm50.hpp>
#include <cute/atom/copy_traits.hpp>

#include <cute/layout.hpp>

namespace cute
{

template <>
struct Copy_Traits<SM50_Shuffle_U32_2x2Trans_XOR1>
{
  // Logical thread id to thread idx (one-thread)
  using ThrID = Layout<_32>;

  // Map from (src-thr,src-val) to bit
  using SrcLayout = Layout<Shape <_32,_64>,
                           Stride<_64, _1>>;
  // Map from (dst-thr,dst-val) to bit
  using DstLayout = Layout<Shape <Shape < _2,  _16>,Shape <_32,  _2>>,
                           Stride<Stride<_32, _128>,Stride< _1, _64>>>;

  // Reference map from (thr,val) to bit
  using RefLayout = SrcLayout;
};

template <>
struct Copy_Traits<SM50_Shuffle_U32_2x2Trans_XOR4>
{
  // Logical thread id to thread idx (one-thread)
  using ThrID = Layout<_32>;
 
  // Map from (src-thr,src-val) to bit
  using SrcLayout = Layout<Shape <_32,_64>,
                           Stride<_64, _1>>;
  // Map from (dst-thr,dst-val) to bit
  using DstLayout = Layout<Shape <Shape < _4,  _2,   _4>, Shape<_32,   _2>>,
                           Stride<Stride<_64, _32, _512>,Stride< _1, _256>>>;

  // Reference map from (thr,val) to bit
  using RefLayout = SrcLayout;
};

} // end namespace cute