2 * Copyright (c) 2015 Advanced Micro Devices, Inc.
5 * For use for simulation and test purposes only
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
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.
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.
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.
33 * Author: John Kalamatianos
36 #include "gpu-compute/condition_register_state.hh"
38 #include "gpu-compute/compute_unit.hh"
39 #include "gpu-compute/gpu_static_inst.hh"
40 #include "gpu-compute/shader.hh"
41 #include "gpu-compute/wavefront.hh"
43 ConditionRegisterState::ConditionRegisterState()
45 computeUnit
= nullptr;
51 ConditionRegisterState::setParent(ComputeUnit
*_computeUnit
)
53 computeUnit
= _computeUnit
;
54 _name
= computeUnit
->name() + ".CondRegState";
58 ConditionRegisterState::init(uint32_t _size
)
61 busy
.resize(_size
, 0);
65 ConditionRegisterState::exec(GPUDynInstPtr ii
, Wavefront
*w
)
67 // iterate over all operands
68 for (auto i
= 0; i
< ii
->getNumOperands(); ++i
) {
69 // is this a condition register destination operand?
70 if (ii
->isCondRegister(i
) && ii
->isDstOperand(i
)) {
71 // mark the register as busy
72 markReg(ii
->getRegisterIndex(i
, ii
), 1);
73 uint32_t pipeLen
= w
->computeUnit
->spBypassLength();
75 // schedule an event for marking the register as ready
77 registerEvent(w
->simdId
, ii
->getRegisterIndex(i
, ii
),
78 ii
->getOperandSize(i
),
79 w
->computeUnit
->shader
->tick_cnt
+
80 w
->computeUnit
->shader
->ticks(pipeLen
), 0);