src/arch/gcn3/gpu_types.hh

   1 /*
   2  * Copyright (c) 2015-2017 Advanced Micro Devices, Inc.
   3  * All rights reserved.
   4  *
   5  * For use for simulation and test purposes only
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright notice,
  11  * this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright notice,
  14  * this list of conditions and the following disclaimer in the documentation
  15  * and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the copyright holder nor the names of its
  18  * contributors may be used to endorse or promote products derived from this
  19  * software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  * Authors: Anthony Gutierrez
  34  */
  35
  36 #ifndef __ARCH_GCN3_GPU_TYPES_HH__
  37 #define __ARCH_GCN3_GPU_TYPES_HH__
  38
  39 #include <cstdint>
  40
  41 namespace Gcn3ISA
  42 {
  43     union InstFormat;
  44
  45     /**
  46      * used to represnt a GPU inst in its raw format. GCN3
  47      * instructions may be 32b or 64b, therefore we represent
  48      * a raw inst with 64b to ensure that all of its inst data,
  49      * including potential immediate values, may be represented
  50      * in the worst case.
  51      */
  52     typedef uint64_t RawMachInst;
  53
  54     /**
  55      * used to represent the encoding of a GCN3 inst. each portion
  56      * of a GCN3 inst must be 1 DWORD (32b), so we use a pointer
  57      * to InstFormat type (which is 32b). for the case in which we
  58      * need multiple DWORDS to represnt a single inst, this pointer
  59      * essentialy acts as an array of the DWORDs needed to represent
  60      * the entire inst encoding.
  61      */
  62     typedef InstFormat *MachInst;
  63
  64 } // namespace Gcn3ISA
  65
  66 #endif // __ARCH_GCN3_GPU_TYPES_HH__