f5609aa1b0
Switch from `int64_t` to `int64_t*` to fit with the rest of the implementation. New tentative with some fix. The previous was reverted some time ago. Reviewed in #138010
95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
//===-- lib/cuda/pointer.cpp ------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Runtime/CUDA/pointer.h"
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#include "flang-rt/runtime/assign-impl.h"
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#include "flang-rt/runtime/descriptor.h"
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#include "flang-rt/runtime/stat.h"
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#include "flang-rt/runtime/terminator.h"
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#include "flang/Runtime/CUDA/descriptor.h"
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#include "flang/Runtime/CUDA/memmove-function.h"
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#include "flang/Runtime/pointer.h"
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#include "cuda_runtime.h"
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namespace Fortran::runtime::cuda {
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extern "C" {
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RT_EXT_API_GROUP_BEGIN
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int RTDEF(CUFPointerAllocate)(Descriptor &desc, int64_t *stream, bool *pinned,
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bool hasStat, const Descriptor *errMsg, const char *sourceFile,
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int sourceLine) {
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if (desc.HasAddendum()) {
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Terminator terminator{sourceFile, sourceLine};
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// TODO: This require a bit more work to set the correct type descriptor
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// address
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terminator.Crash(
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"not yet implemented: CUDA descriptor allocation with addendum");
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}
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// Perform the standard allocation.
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int stat{
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RTNAME(PointerAllocate)(desc, hasStat, errMsg, sourceFile, sourceLine)};
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if (pinned) {
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// Set pinned according to stat. More infrastructre is needed to set it
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// closer to the actual allocation call.
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*pinned = (stat == StatOk);
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}
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return stat;
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}
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int RTDEF(CUFPointerAllocateSync)(Descriptor &desc, int64_t *stream,
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bool *pinned, bool hasStat, const Descriptor *errMsg,
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const char *sourceFile, int sourceLine) {
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int stat{RTNAME(CUFPointerAllocate)(
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desc, stream, pinned, hasStat, errMsg, sourceFile, sourceLine)};
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#ifndef RT_DEVICE_COMPILATION
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// Descriptor synchronization is only done when the allocation is done
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// from the host.
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if (stat == StatOk) {
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void *deviceAddr{
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RTNAME(CUFGetDeviceAddress)((void *)&desc, sourceFile, sourceLine)};
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RTNAME(CUFDescriptorSync)
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((Descriptor *)deviceAddr, &desc, sourceFile, sourceLine);
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}
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#endif
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return stat;
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}
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int RTDEF(CUFPointerAllocateSource)(Descriptor &pointer,
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const Descriptor &source, int64_t *stream, bool *pinned, bool hasStat,
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const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
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int stat{RTNAME(CUFPointerAllocate)(
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pointer, stream, pinned, hasStat, errMsg, sourceFile, sourceLine)};
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if (stat == StatOk) {
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Terminator terminator{sourceFile, sourceLine};
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Fortran::runtime::DoFromSourceAssign(
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pointer, source, terminator, &MemmoveHostToDevice);
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}
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return stat;
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}
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int RTDEF(CUFPointerAllocateSourceSync)(Descriptor &pointer,
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const Descriptor &source, int64_t *stream, bool *pinned, bool hasStat,
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const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
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int stat{RTNAME(CUFPointerAllocateSync)(
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pointer, stream, pinned, hasStat, errMsg, sourceFile, sourceLine)};
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if (stat == StatOk) {
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Terminator terminator{sourceFile, sourceLine};
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Fortran::runtime::DoFromSourceAssign(
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pointer, source, terminator, &MemmoveHostToDevice);
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}
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return stat;
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}
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RT_EXT_API_GROUP_END
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} // extern "C"
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} // namespace Fortran::runtime::cuda
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