vector_register_state.cc revision 11534:7106f550afad 
1/*
2 * Copyright (c) 2015 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 contributors
18 * may be used to endorse or promote products derived from this software
19 * 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 * Author: John Kalamatianos
34 */
35
36#include "gpu-compute/vector_register_state.hh"
37
38#include <limits>
39
40#include "gpu-compute/compute_unit.hh"
41
42VecRegisterState::VecRegisterState() : computeUnit(nullptr)
43{
44    s_reg.clear();
45    d_reg.clear();
46}
47
48void
49VecRegisterState::setParent(ComputeUnit *_computeUnit)
50{
51    computeUnit = _computeUnit;
52    _name = computeUnit->name() + ".VecRegState";
53}
54
55void
56VecRegisterState::init(uint32_t _size, uint32_t wf_size)
57{
58    s_reg.resize(_size);
59    fatal_if(wf_size > std::numeric_limits<unsigned long long>::digits ||
60             wf_size <= 0,
61             "WF size is larger than the host can support or is zero");
62    fatal_if((wf_size & (wf_size - 1)) != 0,
63             "Wavefront size should be a power of 2");
64    for (int i = 0; i < s_reg.size(); ++i) {
65        s_reg[i].resize(wf_size, 0);
66    }
67    d_reg.resize(_size);
68    for (int i = 0; i < d_reg.size(); ++i) {
69        d_reg[i].resize(wf_size, 0);
70    }
71}
72