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/*
* Copyright (C) 2018-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/command_stream/preemption.h"
#include "shared/source/command_stream/preemption.inl"
namespace NEO {
using GfxFamily = BDWFamily;
template <>
struct PreemptionConfig<GfxFamily> {
static constexpr uint32_t mmioAddress = 0x2248;
static constexpr uint32_t maskVal = 0;
static constexpr uint32_t maskShift = 0;
static constexpr uint32_t mask = 0;
static constexpr uint32_t threadGroupVal = 0;
static constexpr uint32_t cmdLevelVal = (1 << 2);
static constexpr uint32_t midThreadVal = 0;
};
template <>
void PreemptionHelper::programCmdStream<GfxFamily>(LinearStream &cmdStream, PreemptionMode newPreemptionMode, PreemptionMode oldPreemptionMode,
GraphicsAllocation *preemptionCsr) {
if (newPreemptionMode == oldPreemptionMode) {
return;
}
uint32_t regVal = 0;
if (newPreemptionMode == PreemptionMode::ThreadGroup) {
regVal = PreemptionConfig<GfxFamily>::threadGroupVal;
} else {
regVal = PreemptionConfig<GfxFamily>::cmdLevelVal;
}
LriHelper<GfxFamily>::program(&cmdStream, PreemptionConfig<GfxFamily>::mmioAddress, regVal, false);
}
template <>
size_t PreemptionHelper::getRequiredPreambleSize<GfxFamily>(const Device &device) {
return 0;
}
template <>
size_t PreemptionHelper::getRequiredStateSipCmdSize<GfxFamily>(const Device &device) {
return 0;
}
template <>
void PreemptionHelper::programCsrBaseAddress<GfxFamily>(LinearStream &preambleCmdStream, Device &device, const GraphicsAllocation *preemptionCsr) {
}
template <>
void PreemptionHelper::programStateSip<GfxFamily>(LinearStream &preambleCmdStream, Device &device) {
}
template <>
size_t PreemptionHelper::getPreemptionWaCsSize<GfxFamily>(const Device &device) {
typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
size_t size = 0;
PreemptionMode preemptionMode = device.getPreemptionMode();
if (preemptionMode == PreemptionMode::ThreadGroup ||
preemptionMode == PreemptionMode::MidThread) {
if (device.getHardwareInfo().workaroundTable.waModifyVFEStateAfterGPGPUPreemption) {
size += 2 * sizeof(MI_LOAD_REGISTER_IMM);
}
}
return size;
}
template <>
void PreemptionHelper::applyPreemptionWaCmdsBegin<GfxFamily>(LinearStream *pCommandStream, const Device &device) {
typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
PreemptionMode preemptionMode = device.getPreemptionMode();
if (preemptionMode == PreemptionMode::ThreadGroup ||
preemptionMode == PreemptionMode::MidThread) {
if (device.getHardwareInfo().workaroundTable.waModifyVFEStateAfterGPGPUPreemption) {
LriHelper<GfxFamily>::program(pCommandStream,
CS_GPR_R0,
GPGPU_WALKER_COOKIE_VALUE_BEFORE_WALKER,
false);
}
}
}
template <>
void PreemptionHelper::applyPreemptionWaCmdsEnd<GfxFamily>(LinearStream *pCommandStream, const Device &device) {
typedef typename GfxFamily::MI_LOAD_REGISTER_IMM MI_LOAD_REGISTER_IMM;
PreemptionMode preemptionMode = device.getPreemptionMode();
if (preemptionMode == PreemptionMode::ThreadGroup ||
preemptionMode == PreemptionMode::MidThread) {
if (device.getHardwareInfo().workaroundTable.waModifyVFEStateAfterGPGPUPreemption) {
LriHelper<GfxFamily>::program(pCommandStream,
CS_GPR_R0,
GPGPU_WALKER_COOKIE_VALUE_AFTER_WALKER,
false);
}
}
}
template <>
void PreemptionHelper::programInterfaceDescriptorDataPreemption<GfxFamily>(INTERFACE_DESCRIPTOR_DATA<GfxFamily> *idd, PreemptionMode preemptionMode) {
}
template size_t PreemptionHelper::getRequiredCmdStreamSize<GfxFamily>(PreemptionMode newPreemptionMode, PreemptionMode oldPreemptionMode);
} // namespace NEO
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