81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
//===----RTLs/amdgpu/utils/UtilitiesRTL.h ------------------------- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// RTL Utilities for AMDGPU plugins
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <cstdint>
|
|
|
|
#include "Shared/Debug.h"
|
|
#include "Shared/Utils.h"
|
|
#include "Utils/ELF.h"
|
|
|
|
#include "omptarget.h"
|
|
|
|
#include "llvm/Frontend/Offloading/Utility.h"
|
|
|
|
namespace llvm {
|
|
namespace omp {
|
|
namespace target {
|
|
namespace plugin {
|
|
namespace hsa_utils {
|
|
|
|
// The implicit arguments of COV5 AMDGPU kernels.
|
|
struct alignas(alignof(void *)) AMDGPUImplicitArgsTy {
|
|
uint32_t BlockCountX;
|
|
uint32_t BlockCountY;
|
|
uint32_t BlockCountZ;
|
|
uint16_t GroupSizeX;
|
|
uint16_t GroupSizeY;
|
|
uint16_t GroupSizeZ;
|
|
uint8_t Unused0[46]; // 46 byte offset.
|
|
uint16_t GridDims;
|
|
uint8_t Unused1[54]; // 54 byte offset.
|
|
uint32_t DynamicLdsSize;
|
|
uint8_t Unused2[132]; // 132 byte offset.
|
|
};
|
|
|
|
/// Returns the size in bytes of the implicit arguments of AMDGPU kernels.
|
|
/// `Version` is the ELF ABI version, e.g. COV5.
|
|
inline uint32_t getImplicitArgsSize(uint16_t Version) {
|
|
return sizeof(AMDGPUImplicitArgsTy);
|
|
}
|
|
|
|
/// Reads the AMDGPU specific metadata from the ELF file and propagates the
|
|
/// KernelInfoMap
|
|
inline Error readAMDGPUMetaDataFromImage(
|
|
MemoryBufferRef MemBuffer,
|
|
StringMap<offloading::amdgpu::AMDGPUKernelMetaData> &KernelInfoMap,
|
|
uint16_t &ELFABIVersion) {
|
|
Error Err = llvm::offloading::amdgpu::getAMDGPUMetaDataFromImage(
|
|
MemBuffer, KernelInfoMap, ELFABIVersion);
|
|
if (!Err)
|
|
return Err;
|
|
ODBG(OLDT_Module) << "ELFABIVERSION Version: " << ELFABIVersion;
|
|
return Err;
|
|
}
|
|
|
|
/// Initializes the HSA implicit argument if the struct size permits it. This is
|
|
/// necessary because optimizations can modify the size of the struct if
|
|
/// portions of it are unused.
|
|
template <typename MemberTy, typename T>
|
|
void initImplArg(AMDGPUImplicitArgsTy *Base,
|
|
MemberTy AMDGPUImplicitArgsTy::*Member, size_t AvailableSize,
|
|
T Value) {
|
|
uint64_t Offset = utils::getPtrDiff(&(Base->*Member), Base);
|
|
if (Offset + sizeof(MemberTy) <= AvailableSize)
|
|
Base->*Member = static_cast<MemberTy>(Value);
|
|
}
|
|
|
|
} // namespace hsa_utils
|
|
} // namespace plugin
|
|
} // namespace target
|
|
} // namespace omp
|
|
} // namespace llvm
|