compute-runtime/runtime/gen9/preemption.cpp

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/*
* Copyright (c) 2017, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "runtime/command_stream/preemption.h"
#include "runtime/memory_manager/graphics_allocation.h"
namespace OCLRT {
typedef SKLFamily GfxFamily;
namespace PreemptionSKL {
static constexpr uint32_t mmioAddress = 0x2580;
static constexpr uint32_t maskVal = (1 << 1) | (1 << 2);
static constexpr uint32_t maskShift = 16;
static constexpr uint32_t mask = PreemptionSKL::maskVal << PreemptionSKL::maskShift;
static constexpr uint32_t threadGroupVal = (1 << 1);
static constexpr uint32_t cmdLevelVal = (1 << 2);
static constexpr uint32_t midThreadVal = 0;
}; // namespace PreemptionSKL
template <>
void PreemptionHelper::programPreemptionMode<GfxFamily>(LinearStream *cmdStream, PreemptionMode &preemptionMode, GraphicsAllocation *preemptionCsr, GraphicsAllocation *sipKernel) {
uint32_t regVal = 0;
if (preemptionMode == PreemptionMode::MidThread) {
regVal = PreemptionSKL::midThreadVal | PreemptionSKL::mask;
} else if (preemptionMode == PreemptionMode::ThreadGroup) {
regVal = PreemptionSKL::threadGroupVal | PreemptionSKL::mask;
} else {
regVal = PreemptionSKL::cmdLevelVal | PreemptionSKL::mask;
}
LriHelper<GfxFamily>::program(cmdStream, PreemptionSKL::mmioAddress, regVal);
if (preemptionMode == PreemptionMode::MidThread) {
typedef typename GfxFamily::GPGPU_CSR_BASE_ADDRESS GPGPU_CSR_BASE_ADDRESS;
auto csr = (GPGPU_CSR_BASE_ADDRESS *)cmdStream->getSpace(sizeof(GPGPU_CSR_BASE_ADDRESS));
*csr = GPGPU_CSR_BASE_ADDRESS::sInit();
csr->setGpgpuCsrBaseAddress(preemptionCsr->getGpuAddressToPatch());
}
}
template <>
size_t PreemptionHelper::getRequiredCsrSize<GfxFamily>(PreemptionMode preemptionMode) {
size_t size = sizeof(typename GfxFamily::MI_LOAD_REGISTER_IMM);
if (preemptionMode == PreemptionMode::MidThread) {
size += sizeof(typename GfxFamily::GPGPU_CSR_BASE_ADDRESS);
}
return size;
}
} // namespace OCLRT