HalpDmaAllocateMappingResources

NTSTATUS __stdcall HalpDmaAllocateMappingResources(){
  unsigned int v0; 
  UINT64 v1; 
  unsigned int v2; 
  __int64 v3; 
  _HALP_ALLOC_CONTEXT *v4; 
  _HALP_ALLOC_CONTEXT *v5; 
  UINT8 *v6; 
  UINT8 *v7; 
  UINT8 *v8; 
  UINT8 **v9; 
  UINT8 *v10; 
  UINT64 v11; 
  _HALP_ALLOC_CONTEXT *v12; 
  unsigned int v13; 
  __int64 v14; 
  _HALP_ALLOC_CONTEXT *v15; 
  char *v16; 
  __int64 v17; 
  UINT8 *v19; 
  __int64 v20; 
  __int64 v21; 
  PVOID *v22; 
  _HALP_ALLOC_CONTEXT *v23; 
  _HALP_ALLOC_CONTEXT *v24; 
  int ReservedMappingArray; 
  _HALP_ALLOC_CONTEXT *v26; 

  KeQueryMaximumProcessorCountEx(0xFFFFu);
  v1 = 8i64 * v0;
  v2 = v0;
  v3 = v0;
  qword_140C53C60 = HalpMmAllocCtxAlloc(v4, v1);
  if( !qword_140C53C60 )
    return -1073741670;
  v6 = HalpMmAllocCtxAlloc(v5, 4144 * v3);
  v8 = v6;
  if( !v6 )
  {
    v19 = (UINT8 *)qword_140C53C60;
LABEL_14:
    HalpMmAllocCtxFree((_HALP_ALLOC_CONTEXT *)v7, v19);
    return -1073741670;
  }
  if( v2 )
  {
    v9 = (UINT8 **)qword_140C53C60;
    v7 = v6 + 32;
    do
    {
      *(_QWORD *)v7 = 0i64;
      v10 = v7 - 32;
      *((_DWORD *)v7 + 3) = 0;
      *(_QWORD *)v10 = 0i64;
      *((_DWORD *)v7 - 6) = 131128;
      *((_DWORD *)v7 + 2) = 4096;
      v7 += 4144;
      *v9++ = v10;
      --v3;
    }
    while( v3 );
  }
  qword_140CF2310 = 0i64;
  v11 = 4i64;
  if( v2 <= 4 )
  {
    qword_140C53C68 = HalpMmAllocCtxAlloc((_HALP_ALLOC_CONTEXT *)v7, v1);
    if( qword_140C53C68 )
    {
      v13 = 0;
      if( !v2 )
      {
LABEL_12:
        byte_140C53C58 = 1;
        return 0;
      }
      v14 = 0i64;
      while( 1 )
      {
        HalpDmaAllocateReservedMapping();
        v16 = (char *)qword_140C53C68;
        *(_QWORD *)((char *)qword_140C53C68 + v14) = v17;
        if( !v17 )
          break;
        ++v13;
        v14 += 8i64;
        if( v13 >= v2 )
          goto LABEL_12;
      }
      if( v13 )
      {
        v20 = 0i64;
        v21 = v13;
        do
        {
          v22 = *(PVOID **)&v16[v20];
          MmFreeMappingAddress(v22[2], 0x206C6148u);
          HalpMmAllocCtxFree(v23, v22);
          v16 = (char *)qword_140C53C68;
          v20 += 8i64;
          --v21;
        }
        while( v21 );
      }
      HalpMmAllocCtxFree(v15, v16);
      v11 = v2;
      goto LABEL_21;
    }
    HalpMmAllocCtxFree(v12, qword_140C53C60);
    v19 = v8;
    goto LABEL_14;
  }
LABEL_21:
  ReservedMappingArray = HalpDmaAllocateReservedMappingArray(v2, v11);
  if( ReservedMappingArray < 0 )
  {
    HalpMmAllocCtxFree(v24, qword_140C53C60);
    HalpMmAllocCtxFree(v26, v8);
  }
  return ReservedMappingArray;
}

Referenced by: