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/*========================== begin_copyright_notice ============================
Copyright (C) 2019-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/CISACodeGen/ShaderCodeGen.hpp"
#include "common/LLVMWarningsPush.hpp"
#include "llvm/ADT/Optional.h"
#include "common/LLVMWarningsPop.hpp"
namespace IGC
{
class CComputeShaderBase : public CShader
{
public:
CComputeShaderBase(llvm::Function* pFunc, CShaderProgram* pProgram);
virtual ~CComputeShaderBase();
protected:
void selectWalkOrder(
bool useLinearWalk,
uint numberOfTypedAccess,
uint numberOfUntypedAccess,
uint num1DAccesses,
uint num2DAccesses,
uint numSLMAccesses,
uint threadGroupSize_X,
uint threadGroupSize_Y,
uint threadGroupSize_Z);
ThreadIDLayout m_ThreadIDLayout = ThreadIDLayout::X;
enum WALK_ORDER {
WO_XYZ,
WO_XZY,
WO_YXZ,
WO_ZXY,
WO_YZX,
WO_ZYX
};
WALK_ORDER m_walkOrder = WALK_ORDER::WO_XYZ;
enum EMIT_LOCAL_MASK {
NONE = 0,
X = 1,
XY = 3,
XYZ = 7
};
EMIT_LOCAL_MASK m_emitMask = EMIT_LOCAL_MASK::NONE;
//true if HW generates localIDs and puts them to payload
//false if SW generates localIDs and prolog kernel loads them from memory
bool m_enableHWGenerateLID = false;
void setEmitLocalMask(SGVUsage channelNum);
static llvm::Optional<WALK_ORDER> selectBestWalkOrder(
ThreadIDLayout Layout,
bool is_pow2_x, bool is_pow2_y, bool is_pow2_z);
// Determines if HW can handle auto generating local IDs with this
// order
static llvm::Optional<WALK_ORDER> checkLegalWalkOrder(
const std::array<uint32_t, 3>& Dims,
const WorkGroupWalkOrderMD& WO);
static WALK_ORDER getWalkOrder(uint order0, uint order1);
};
}
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