74 lines
3.3 KiB
C++
74 lines
3.3 KiB
C++
/*
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* Copyright (c) 2017, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "runtime/command_stream/preemption.h"
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#include "runtime/device/device.h"
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#include "runtime/command_queue/dispatch_walker_helper.h"
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namespace OCLRT {
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template <typename GfxFamily>
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size_t PreemptionHelper::getPreemptionWaCsSize(const Device &device) {
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typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
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size_t size = 0;
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PreemptionMode preemptionMode = device.getPreemptionMode();
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if (preemptionMode == PreemptionMode::ThreadGroup ||
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preemptionMode == PreemptionMode::MidThread) {
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if (device.getWaTable()->waModifyVFEStateAfterGPGPUPreemption) {
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size += 2 * sizeof(MI_LOAD_REGISTER_IMM);
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}
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}
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return size;
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}
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template <typename GfxFamily>
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void PreemptionHelper::applyPreemptionWaCmdsBegin(LinearStream *pCommandStream, const Device &device) {
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typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
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PreemptionMode preemptionMode = device.getPreemptionMode();
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if (preemptionMode == PreemptionMode::ThreadGroup ||
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preemptionMode == PreemptionMode::MidThread) {
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if (device.getWaTable()->waModifyVFEStateAfterGPGPUPreemption) {
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auto pCmd = reinterpret_cast<MI_LOAD_REGISTER_IMM *>(pCommandStream->getSpace(sizeof(MI_LOAD_REGISTER_IMM)));
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*pCmd = MI_LOAD_REGISTER_IMM::sInit();
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pCmd->setRegisterOffset(CS_GPR_R0);
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pCmd->setDataDword(GPGPU_WALKER_COOKIE_VALUE_BEFORE_WALKER);
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}
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}
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}
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template <typename GfxFamily>
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void PreemptionHelper::applyPreemptionWaCmdsEnd(LinearStream *pCommandStream, const Device &device) {
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typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
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PreemptionMode preemptionMode = device.getPreemptionMode();
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if (preemptionMode == PreemptionMode::ThreadGroup ||
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preemptionMode == PreemptionMode::MidThread) {
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if (device.getWaTable()->waModifyVFEStateAfterGPGPUPreemption) {
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auto pCmd = reinterpret_cast<MI_LOAD_REGISTER_IMM *>(pCommandStream->getSpace(sizeof(MI_LOAD_REGISTER_IMM)));
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*pCmd = MI_LOAD_REGISTER_IMM::sInit();
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pCmd->setRegisterOffset(CS_GPR_R0);
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pCmd->setDataDword(GPGPU_WALKER_COOKIE_VALUE_AFTER_WALKER);
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}
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}
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}
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} // namespace OCLRT
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