HsaUpdateRemappingTableEntry

CHAR __fastcall HsaUpdateRemappingTableEntry(INT64 a1, CHAR a2, UINT64 a3, _DWORD *a4){
  CHAR v4; 
  __int64 v5; 
  INT64 v8; 
  __int64 v9; 
  UINT8 *v10; 
  RTL_BITMAP *v11; 
  ULONG_PTR v12; 
  int v13; 
  __int64 v15; 
  signed __int64 v16; 
  __int64 i; 
  ULONG_PTR v18; 
  signed __int64 v19; 
  __int128 v20; 
  __int128 v21; 
  unsigned __int8 v22; 
  ULONG_PTR BugCheckParameter3[2]; 
  ULONG_PTR BugCheckParameter4[2]; 
  v4 = 0;
  v5 = (unsigned int)a3;
  *(_OWORD *)BugCheckParameter4 = 0i64;
  if( a2 )
  {
    HsaGetDeviceAperture((unsigned int)a3);
    v5 &= 0x1FFu;
    v10 = (UINT8 *)(v9 + 8);
    if( !*(_QWORD *)(v9 + 16) )
      ExtEnvCriticalFailure(v8, 0i64, 0i64, 0i64, 0i64);
  }
  else
  {
    v10 = &HsaSharedRemappingTable;
  }
  v11 = (RTL_BITMAP *)(v10 + 24);
  if( a2 )
    RtlSetBits(v11, (unsigned int)v5, 1ui64);
  else
    RtlClearBits(v11, (unsigned int)v5, 1ui64);
  v12 = *((_QWORD *)v10 + 1) + 16 * v5;
  if( (*(_BYTE *)v12 & 1) == 0 && (a4[3] & 0x10) == 0 )
    return 0;
  v13 = a4[3];
  *(_OWORD *)BugCheckParameter3 = 0i64;
  if( (v13 & 0x10) != 0 )
  {
    if( a4[5] != 1 )
      return 0;
    v15 = (unsigned __int8)(LOBYTE(BugCheckParameter3[1]) ^ a4[12]);
    BugCheckParameter3[0] = (2i64 * (v13 & 2)) | 1;
    BugCheckParameter3[1] ^= v15;
    HsaUpdateInterruptDestination(BugCheckParameter3, a4 + 6);
  }
  v16 = BugCheckParameter3[0];
  if( (*(_BYTE *)v12 & BugCheckParameter3[0] & 1) != 0 )
  {
    for( i = 0i64; i < 2; ++i )
      BugCheckParameter4[i] = BugCheckParameter3[i] ^ *(ULONG_PTR *)((char *)&BugCheckParameter3[i]
                                                                   + v12
                                                                   - (_QWORD)BugCheckParameter3);
    v18 = BugCheckParameter4[1] & 0xFFFFFFFFFFFFFFi64;
    BugCheckParameter4[0] &= 0xFFFFFFFF000000FFui64;
    BugCheckParameter4[1] &= 0xFFFFFFFFFFFFFFui64;
    if( BugCheckParameter4[0] || v18 )
      KeBugCheckEx(0x5Cu, 0x7000ui64, 0x20ui64, v12, (ULONG_PTR)BugCheckParameter4);
  }
  v19 = BugCheckParameter3[1];
  if( *(_QWORD *)v12 != v16 || *(_QWORD *)(v12 + 8) != BugCheckParameter3[1] )
  {
    v20 = *(_OWORD *)v12;
    do
    {
      v21 = v20;
      v22 = _InterlockedCompareExchange128((volatile signed __int64 *)v12, v19, v16, (signed __int64 *)&v21);
      v20 = v21;
    }
    while( !v22 );
    return 1;
  }
  return v4;
}

Referenced by: