NVGPUDialect.h

Go to the documentation of this file.

//===- NVGPUDialect.h - MLIR Dialect for NVGPU ------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the Target dialect for NVGPU in MLIR.
//
//===----------------------------------------------------------------------===//
 
#ifndef MLIR_DIALECT_NVGPU_NVGPUDIALECT_H_
#define MLIR_DIALECT_NVGPU_NVGPUDIALECT_H_
 
#include "mlir/Dialect/LLVMIR/NVVMAttributes.h"
#include "mlir/Dialect/NVGPU/IR/NVGPUDialectDecl.h"
#include "mlir/IR/BuiltinTypes.h"
#include "mlir/IR/Dialect.h"
 
#include "mlir/Dialect/NVGPU/IR/NVGPUEnums.h.inc"
 
// Maximum warp size
constexpr int kWarpSize = 32;
 
// Maximum number of threads in a block and block in a grid
// https://docs.nvidia.com/cuda/cuda-c-programming-guide/#features-and-technical-specifications-technical-specifications-per-compute-capability
constexpr int kMaxTotalBlockdim = 1024;
constexpr int kMaxBlockdimx = 1024;
constexpr int kMaxBlockdimy = 1024;
constexpr int kMaxBlockdimz = 64;
constexpr int kMaxTotalGriddim = 2147483647;
constexpr int kMaxGriddimx = 2147483647;
constexpr int kMaxGriddimy = 65535;
constexpr int kMaxGriddimz = 65535;
 
/// M size of wgmma.mma_async instruction
constexpr int kWgmmaSizeM = 64;
 
/// Maximum TMA tile dimension (tensorRank) must be non-zero and less than or
/// equal to the maximum supported dimensionality of 5.
constexpr unsigned kMaxTMATensorDimension = 5;
/// Maximum TMA tile size (boxDim), which specifies number of elements
/// to be traversed along each of the kMaxTMATensorDimension (tensorRank)
/// dimensions, must be non-zero and less than or equal to 256.
constexpr unsigned kMaxTMADimension = 256;
/// The bytes in the last dimension of the tensor map must be a multiple of 16.
constexpr unsigned kTMALastdimByte = 16;
 
#define GET_ATTRDEF_CLASSES
#include "mlir/Dialect/NVGPU/IR/NVGPUAttrDefs.h.inc"
 
#define GET_TYPEDEF_CLASSES
#include "mlir/Dialect/NVGPU/IR/NVGPUTypeDefs.h.inc"
 
#define GET_OP_CLASSES
#include "mlir/Dialect/NVGPU/IR/NVGPUOps.h.inc"
 
#endif // MLIR_DIALECT_NVGPU_NVGPUDIALECT_H_