//===-- OpenMP/Mapping.cpp - OpenMP/OpenACC pointer mapping impl. ---------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
#include "OpenMP/Mapping.h"
#include "PluginManager.h"
#include "Shared/Debug.h"
#include "Shared/Requirements.h"
#include "device.h"
/// Dump a table of all the host-target pointer pairs on failure
void dumpTargetPointerMappings(const ident_t *Loc, DeviceTy &Device,
bool toStdOut) {
MappingInfoTy::HDTTMapAccessorTy HDTTMap =
Device.getMappingInfo().HostDataToTargetMap.getExclusiveAccessor();
if (HDTTMap->empty()) {
DUMP_INFO(toStdOut, OMP_INFOTYPE_ALL, Device.DeviceID,
"OpenMP Host-Device pointer mappings table empty\n");
return;
}
SourceInfo Kernel(Loc);
DUMP_INFO(toStdOut, OMP_INFOTYPE_ALL, Device.DeviceID,
"OpenMP Host-Device pointer mappings after block at %s:%d:%d:\n",
Kernel.getFilename(), Kernel.getLine(), Kernel.getColumn());
DUMP_INFO(toStdOut, OMP_INFOTYPE_ALL, Device.DeviceID,
"%-18s %-18s %s %s %s %s\n", "Host Ptr", "Target Ptr", "Size (B)",
"DynRefCount", "HoldRefCount", "Declaration");
for (const auto &It : *HDTTMap) {
HostDataToTargetTy &HDTT = *It.HDTT;
SourceInfo Info(HDTT.HstPtrName);
DUMP_INFO(toStdOut, OMP_INFOTYPE_ALL, Device.DeviceID,
DPxMOD " " DPxMOD " %-8" PRIuPTR " %-11s %-12s %s at %s:%d:%d\n",
DPxPTR(HDTT.HstPtrBegin), DPxPTR(HDTT.TgtPtrBegin),
HDTT.HstPtrEnd - HDTT.HstPtrBegin,
HDTT.dynRefCountToStr().c_str(), HDTT.holdRefCountToStr().c_str(),
Info.getName(), Info.getFilename(), Info.getLine(),
Info.getColumn());
}
}
int MappingInfoTy::associatePtr(void *HstPtrBegin, void *TgtPtrBegin,
int64_t Size) {
HDTTMapAccessorTy HDTTMap = HostDataToTargetMap.getExclusiveAccessor();
// Check if entry exists
auto It = HDTTMap->find(HstPtrBegin);
if (It != HDTTMap->end()) {
HostDataToTargetTy &HDTT = *It->HDTT;
std::lock_guard<HostDataToTargetTy> LG(HDTT);
// Mapping already exists
bool IsValid = HDTT.HstPtrEnd == (uintptr_t)HstPtrBegin + Size &&
HDTT.TgtPtrBegin == (uintptr_t)TgtPtrBegin;
if (IsValid) {
DP("Attempt to re-associate the same device ptr+offset with the same "
"host ptr, nothing to do\n");
return OFFLOAD_SUCCESS;
}
REPORT("Not allowed to re-associate a different device ptr+offset with "
"the same host ptr\n");
return OFFLOAD_FAIL;
}
// Mapping does not exist, allocate it with refCount=INF
const HostDataToTargetTy &NewEntry =
*HDTTMap
->emplace(new HostDataToTargetTy(
/*HstPtrBase=*/(uintptr_t)HstPtrBegin,
/*HstPtrBegin=*/(uintptr_t)HstPtrBegin,
/*HstPtrEnd=*/(uintptr_t)HstPtrBegin + Size,
/*TgtAllocBegin=*/(uintptr_t)TgtPtrBegin,
/*TgtPtrBegin=*/(uintptr_t)TgtPtrBegin,
/*UseHoldRefCount=*/false, /*Name=*/nullptr,
/*IsRefCountINF=*/true))
.first->HDTT;
DP("Creating new map entry: HstBase=" DPxMOD ", HstBegin=" DPxMOD
", HstEnd=" DPxMOD ", TgtBegin=" DPxMOD ", DynRefCount=%s, "
"HoldRefCount=%s\n",
DPxPTR(NewEntry.HstPtrBase), DPxPTR(NewEntry.HstPtrBegin),
DPxPTR(NewEntry.HstPtrEnd), DPxPTR(NewEntry.TgtPtrBegin),
NewEntry.dynRefCountToStr().c_str(), NewEntry.holdRefCountToStr().c_str());
(void)NewEntry;
// Notify the plugin about the new mapping.
return Device.notifyDataMapped(HstPtrBegin, Size);
}
int MappingInfoTy::disassociatePtr(void *HstPtrBegin) {
HDTTMapAccessorTy HDTTMap = HostDataToTargetMap.getExclusiveAccessor();
auto It = HDTTMap->find(HstPtrBegin);
if (It == HDTTMap->end()) {
REPORT("Association not found\n");
return OFFLOAD_FAIL;
}
// Mapping exists
HostDataToTargetTy &HDTT = *It->HDTT;
std::lock_guard<HostDataToTargetTy> LG(HDTT);
if (HDTT.getHoldRefCount()) {
// This is based on OpenACC 3.1, sec 3.2.33 "acc_unmap_data", L3656-3657:
// "It is an error to call acc_unmap_data if the structured reference
// count for the pointer is not zero."
REPORT("Trying to disassociate a pointer with a non-zero hold reference "
"count\n");
return OFFLOAD_FAIL;
}
if (HDTT.isDynRefCountInf()) {
DP("Association found, removing it\n");
void *Event = HDTT.getEvent();
delete &HDTT;
if (Event)
Device.destroyEvent(Event);
HDTTMap->erase(It);
return Device.notifyDataUnmapped(HstPtrBegin);
}
REPORT("Trying to disassociate a pointer which was not mapped via "
"omp_target_associate_ptr\n");
return OFFLOAD_FAIL;
}
LookupResult MappingInfoTy::lookupMapping(HDTTMapAccessorTy &HDTTMap,
void *HstPtrBegin, int64_t Size,
HostDataToTargetTy *OwnedTPR) {
uintptr_t HP = (uintptr_t)HstPtrBegin;
LookupResult LR;
DP("Looking up mapping(HstPtrBegin=" DPxMOD ", Size=%" PRId64 ")...\n",
DPxPTR(HP), Size);
if (HDTTMap->empty())
return LR;
auto Upper = HDTTMap->upper_bound(HP);
if (Size == 0) {
// specification v5.1 Pointer Initialization for Device Data Environments
// upper_bound satisfies
// std::prev(upper)->HDTT.HstPtrBegin <= hp < upper->HDTT.HstPtrBegin
if (Upper != HDTTMap->begin()) {
LR.TPR.setEntry(std::prev(Upper)->HDTT, OwnedTPR);
// the left side of extended address range is satisified.
// hp >= LR.TPR.getEntry()->HstPtrBegin || hp >=
// LR.TPR.getEntry()->HstPtrBase
LR.Flags.IsContained = HP < LR.TPR.getEntry()->HstPtrEnd ||
HP < LR.TPR.getEntry()->HstPtrBase;
}
if (!LR.Flags.IsContained && Upper != HDTTMap->end()) {
LR.TPR.setEntry(Upper->HDTT, OwnedTPR);
// the right side of extended address range is satisified.
// hp < LR.TPR.getEntry()->HstPtrEnd || hp < LR.TPR.getEntry()->HstPtrBase
LR.Flags.IsContained = HP >= LR.TPR.getEntry()->HstPtrBase;
}
} else {
// check the left bin
if (Upper != HDTTMap->begin()) {
LR.TPR.setEntry(std::prev(Upper)->HDTT, OwnedTPR);
// Is it contained?
LR.Flags.IsContained = HP >= LR.TPR.getEntry()->HstPtrBegin &&
HP < LR.TPR.getEntry()->HstPtrEnd &&
(HP + Size) <= LR.TPR.getEntry()->HstPtrEnd;
// Does it extend beyond the mapped region?
LR.Flags.ExtendsAfter = HP < LR.TPR.getEntry()->HstPtrEnd &&
(HP + Size) > LR.TPR.getEntry()->HstPtrEnd;
}
// check the right bin
if (!(LR.Flags.IsContained || LR.Flags.ExtendsAfter) &&
Upper != HDTTMap->end()) {
LR.TPR.setEntry(Upper->HDTT, OwnedTPR);
// Does it extend into an already mapped region?
LR.Flags.ExtendsBefore = HP < LR.TPR.getEntry()->HstPtrBegin &&
(HP + Size) > LR.TPR.getEntry()->HstPtrBegin;
// Does it extend beyond the mapped region?
LR.Flags.ExtendsAfter = HP < LR.TPR.getEntry()->HstPtrEnd &&
(HP + Size) > LR.TPR.getEntry()->HstPtrEnd;
}
if (LR.Flags.ExtendsBefore) {
DP("WARNING: Pointer is not mapped but section extends into already "
"mapped data\n");
}
if (LR.Flags.ExtendsAfter) {
DP("WARNING: Pointer is already mapped but section extends beyond mapped "
"region\n");
}
}
return LR;
}
TargetPointerResultTy MappingInfoTy::getTargetPointer(
HDTTMapAccessorTy &HDTTMap, void *HstPtrBegin, void *HstPtrBase,
int64_t TgtPadding, int64_t Size, map_var_info_t HstPtrName, bool HasFlagTo,
bool HasFlagAlways, bool IsImplicit, bool UpdateRefCount,
bool HasCloseModifier, bool HasPresentModifier, bool HasHoldModifier,
AsyncInfoTy &AsyncInfo, HostDataToTargetTy *OwnedTPR, bool ReleaseHDTTMap) {
LookupResult LR = lookupMapping(HDTTMap, HstPtrBegin, Size, OwnedTPR);
LR.TPR.Flags.IsPresent = true;
// Release the mapping table lock only after the entry is locked by
// attaching it to TPR. Once TPR is destroyed it will release the lock
// on entry. If it is returned the lock will move to the returned object.
// If LR.Entry is already owned/locked we avoid trying to lock it again.
// Check if the pointer is contained.
// If a variable is mapped to the device manually by the user - which would
// lead to the IsContained flag to be true - then we must ensure that the
// device address is returned even under unified memory conditions.
if (LR.Flags.IsContained ||
((LR.Flags.ExtendsBefore || LR.Flags.ExtendsAfter) && IsImplicit)) {
const char *RefCountAction;
if (UpdateRefCount) {
// After this, reference count >= 1. If the reference count was 0 but the
// entry was still there we can reuse the data on the device and avoid a
// new submission.
LR.TPR.getEntry()->incRefCount(HasHoldModifier);
RefCountAction = " (incremented)";
} else {
// It might have been allocated with the parent, but it's still new.
LR.TPR.Flags.IsNewEntry = LR.TPR.getEntry()->getTotalRefCount() == 1;
RefCountAction = " (update suppressed)";
}
const char *DynRefCountAction = HasHoldModifier ? "" : RefCountAction;
const char *HoldRefCountAction = HasHoldModifier ? RefCountAction : "";
uintptr_t Ptr = LR.TPR.getEntry()->TgtPtrBegin +
((uintptr_t)HstPtrBegin - LR.TPR.getEntry()->HstPtrBegin);
INFO(OMP_INFOTYPE_MAPPING_EXISTS, Device.DeviceID,
"Mapping exists%s with HstPtrBegin=" DPxMOD ", TgtPtrBegin=" DPxMOD
", Size=%" PRId64 ", DynRefCount=%s%s, HoldRefCount=%s%s, Name=%s\n",
(IsImplicit ? " (implicit)" : ""), DPxPTR(HstPtrBegin), DPxPTR(Ptr),
Size, LR.TPR.getEntry()->dynRefCountToStr().c_str(), DynRefCountAction,
LR.TPR.getEntry()->holdRefCountToStr().c_str(), HoldRefCountAction,
(HstPtrName) ? getNameFromMapping(HstPtrName).c_str() : "unknown");
LR.TPR.TargetPointer = (void *)Ptr;
} else if ((LR.Flags.ExtendsBefore || LR.Flags.ExtendsAfter) && !IsImplicit) {
// Explicit extension of mapped data - not allowed.
MESSAGE("explicit extension not allowed: host address specified is " DPxMOD
" (%" PRId64
" bytes), but device allocation maps to host at " DPxMOD
" (%" PRId64 " bytes)",
DPxPTR(HstPtrBegin), Size, DPxPTR(LR.TPR.getEntry()->HstPtrBegin),
LR.TPR.getEntry()->HstPtrEnd - LR.TPR.getEntry()->HstPtrBegin);
if (HasPresentModifier)
MESSAGE("device mapping required by 'present' map type modifier does not "
"exist for host address " DPxMOD " (%" PRId64 " bytes)",
DPxPTR(HstPtrBegin), Size);
} else if ((PM->getRequirements() & OMP_REQ_UNIFIED_SHARED_MEMORY &&
!HasCloseModifier) ||
(PM->getRequirements() & OMPX_REQ_AUTO_ZERO_COPY)) {
// If unified shared memory is active, implicitly mapped variables that are
// not privatized use host address. Any explicitly mapped variables also use
// host address where correctness is not impeded. In all other cases maps
// are respected.
// In addition to the mapping rules above, the close map modifier forces the
// mapping of the variable to the device.
if (Size) {
INFO(OMP_INFOTYPE_MAPPING_CHANGED, Device.DeviceID,
"Return HstPtrBegin " DPxMOD " Size=%" PRId64 " for unified shared "
"memory\n",
DPxPTR((uintptr_t)HstPtrBegin), Size);
DP("Return HstPtrBegin " DPxMOD " Size=%" PRId64 " for unified shared "
"memory\n",
DPxPTR((uintptr_t)HstPtrBegin), Size);
LR.TPR.Flags.IsPresent = false;
LR.TPR.Flags.IsHostPointer = true;
LR.TPR.TargetPointer = HstPtrBegin;
}
} else if (HasPresentModifier) {
DP("Mapping required by 'present' map type modifier does not exist for "
"HstPtrBegin=" DPxMOD ", Size=%" PRId64 "\n",
DPxPTR(HstPtrBegin), Size);
MESSAGE("device mapping required by 'present' map type modifier does not "
"exist for host address " DPxMOD " (%" PRId64 " bytes)",
DPxPTR(HstPtrBegin), Size);
} else if (Size) {
// If it is not contained and Size > 0, we should create a new entry for it.
LR.TPR.Flags.IsNewEntry = true;
uintptr_t TgtAllocBegin =
(uintptr_t)Device.allocData(TgtPadding + Size, HstPtrBegin);
uintptr_t TgtPtrBegin = TgtAllocBegin + TgtPadding;
// Release the mapping table lock only after the entry is locked by
// attaching it to TPR.
LR.TPR.setEntry(HDTTMap
->emplace(new HostDataToTargetTy(
(uintptr_t)HstPtrBase, (uintptr_t)HstPtrBegin,
(uintptr_t)HstPtrBegin + Size, TgtAllocBegin,
TgtPtrBegin, HasHoldModifier, HstPtrName))
.first->HDTT);
INFO(OMP_INFOTYPE_MAPPING_CHANGED, Device.DeviceID,
"Creating new map entry with HstPtrBase=" DPxMOD
", HstPtrBegin=" DPxMOD ", TgtAllocBegin=" DPxMOD
", TgtPtrBegin=" DPxMOD
", Size=%ld, DynRefCount=%s, HoldRefCount=%s, Name=%s\n",
DPxPTR(HstPtrBase), DPxPTR(HstPtrBegin), DPxPTR(TgtAllocBegin),
DPxPTR(TgtPtrBegin), Size,
LR.TPR.getEntry()->dynRefCountToStr().c_str(),
LR.TPR.getEntry()->holdRefCountToStr().c_str(),
(HstPtrName) ? getNameFromMapping(HstPtrName).c_str() : "unknown");
LR.TPR.TargetPointer = (void *)TgtPtrBegin;
// Notify the plugin about the new mapping.
if (Device.notifyDataMapped(HstPtrBegin, Size))
return TargetPointerResultTy{};
} else {
// This entry is not present and we did not create a new entry for it.
LR.TPR.Flags.IsPresent = false;
}
// All mapping table modifications have been made. If the user requested it we
// give up the lock.
if (ReleaseHDTTMap)
HDTTMap.destroy();
// If the target pointer is valid, and we need to transfer data, issue the
// data transfer.
if (LR.TPR.TargetPointer && !LR.TPR.Flags.IsHostPointer && HasFlagTo &&
(LR.TPR.Flags.IsNewEntry || HasFlagAlways) && Size != 0) {
DP("Moving %" PRId64 " bytes (hst:" DPxMOD ") -> (tgt:" DPxMOD ")\n", Size,
DPxPTR(HstPtrBegin), DPxPTR(LR.TPR.TargetPointer));
int Ret = Device.submitData(LR.TPR.TargetPointer, HstPtrBegin, Size,
AsyncInfo, LR.TPR.getEntry());
if (Ret != OFFLOAD_SUCCESS) {
REPORT("Copying data to device failed.\n");
// We will also return nullptr if the data movement fails because that
// pointer points to a corrupted memory region so it doesn't make any
// sense to continue to use it.
LR.TPR.TargetPointer = nullptr;
} else if (LR.TPR.getEntry()->addEventIfNecessary(Device, AsyncInfo) !=
OFFLOAD_SUCCESS)
return TargetPointerResultTy{};
} else {
// If not a host pointer and no present modifier, we need to wait for the
// event if it exists.
// Note: Entry might be nullptr because of zero length array section.
if (LR.TPR.getEntry() && !LR.TPR.Flags.IsHostPointer &&
!HasPresentModifier) {
void *Event = LR.TPR.getEntry()->getEvent();
if (Event) {
int Ret = Device.waitEvent(Event, AsyncInfo);
if (Ret != OFFLOAD_SUCCESS) {
// If it fails to wait for the event, we need to return nullptr in
// case of any data race.
REPORT("Failed to wait for event " DPxMOD ".\n", DPxPTR(Event));
return TargetPointerResultTy{};
}
}
}
}
return std::move(LR.TPR);
}
TargetPointerResultTy MappingInfoTy::getTgtPtrBegin(
void *HstPtrBegin, int64_t Size, bool UpdateRefCount, bool UseHoldRefCount,
bool MustContain, bool ForceDelete, bool FromDataEnd) {
HDTTMapAccessorTy HDTTMap = HostDataToTargetMap.getExclusiveAccessor();
LookupResult LR = lookupMapping(HDTTMap, HstPtrBegin, Size);
LR.TPR.Flags.IsPresent = true;
if (LR.Flags.IsContained ||
(!MustContain && (LR.Flags.ExtendsBefore || LR.Flags.ExtendsAfter))) {
LR.TPR.Flags.IsLast =
LR.TPR.getEntry()->decShouldRemove(UseHoldRefCount, ForceDelete);
if (ForceDelete) {
LR.TPR.getEntry()->resetRefCount(UseHoldRefCount);
assert(LR.TPR.Flags.IsLast ==
LR.TPR.getEntry()->decShouldRemove(UseHoldRefCount) &&
"expected correct IsLast prediction for reset");
}
// Increment the number of threads that is using the entry on a
// targetDataEnd, tracking the number of possible "deleters". A thread may
// come to own the entry deletion even if it was not the last one querying
// for it. Thus, we must track every query on targetDataEnds to ensure only
// the last thread that holds a reference to an entry actually deletes it.
if (FromDataEnd)
LR.TPR.getEntry()->incDataEndThreadCount();
const char *RefCountAction;
if (!UpdateRefCount) {
RefCountAction = " (update suppressed)";
} else if (LR.TPR.Flags.IsLast) {
LR.TPR.getEntry()->decRefCount(UseHoldRefCount);
assert(LR.TPR.getEntry()->getTotalRefCount() == 0 &&
"Expected zero reference count when deletion is scheduled");
if (ForceDelete)
RefCountAction = " (reset, delayed deletion)";
else
RefCountAction = " (decremented, delayed deletion)";
} else {
LR.TPR.getEntry()->decRefCount(UseHoldRefCount);
RefCountAction = " (decremented)";
}
const char *DynRefCountAction = UseHoldRefCount ? "" : RefCountAction;
const char *HoldRefCountAction = UseHoldRefCount ? RefCountAction : "";
uintptr_t TP = LR.TPR.getEntry()->TgtPtrBegin +
((uintptr_t)HstPtrBegin - LR.TPR.getEntry()->HstPtrBegin);
INFO(OMP_INFOTYPE_MAPPING_EXISTS, Device.DeviceID,
"Mapping exists with HstPtrBegin=" DPxMOD ", TgtPtrBegin=" DPxMOD ", "
"Size=%" PRId64 ", DynRefCount=%s%s, HoldRefCount=%s%s\n",
DPxPTR(HstPtrBegin), DPxPTR(TP), Size,
LR.TPR.getEntry()->dynRefCountToStr().c_str(), DynRefCountAction,
LR.TPR.getEntry()->holdRefCountToStr().c_str(), HoldRefCountAction);
LR.TPR.TargetPointer = (void *)TP;
} else if (PM->getRequirements() & OMP_REQ_UNIFIED_SHARED_MEMORY ||
PM->getRequirements() & OMPX_REQ_AUTO_ZERO_COPY) {
// If the value isn't found in the mapping and unified shared memory
// is on then it means we have stumbled upon a value which we need to
// use directly from the host.
DP("Get HstPtrBegin " DPxMOD " Size=%" PRId64 " for unified shared "
"memory\n",
DPxPTR((uintptr_t)HstPtrBegin), Size);
LR.TPR.Flags.IsPresent = false;
LR.TPR.Flags.IsHostPointer = true;
LR.TPR.TargetPointer = HstPtrBegin;
} else {
// OpenMP Specification v5.2: if a matching list item is not found, the
// pointer retains its original value as per firstprivate semantics.
LR.TPR.Flags.IsPresent = false;
LR.TPR.Flags.IsHostPointer = false;
LR.TPR.TargetPointer = HstPtrBegin;
}
return std::move(LR.TPR);
}
// Return the target pointer begin (where the data will be moved).
void *MappingInfoTy::getTgtPtrBegin(HDTTMapAccessorTy &HDTTMap,
void *HstPtrBegin, int64_t Size) {
uintptr_t HP = (uintptr_t)HstPtrBegin;
LookupResult LR = lookupMapping(HDTTMap, HstPtrBegin, Size);
if (LR.Flags.IsContained || LR.Flags.ExtendsBefore || LR.Flags.ExtendsAfter) {
uintptr_t TP =
LR.TPR.getEntry()->TgtPtrBegin + (HP - LR.TPR.getEntry()->HstPtrBegin);
return (void *)TP;
}
return NULL;
}
int MappingInfoTy::eraseMapEntry(HDTTMapAccessorTy &HDTTMap,
HostDataToTargetTy *Entry, int64_t Size) {
assert(Entry && "Trying to delete a null entry from the HDTT map.");
assert(Entry->getTotalRefCount() == 0 &&
Entry->getDataEndThreadCount() == 0 &&
"Trying to delete entry that is in use or owned by another thread.");
INFO(OMP_INFOTYPE_MAPPING_CHANGED, Device.DeviceID,
"Removing map entry with HstPtrBegin=" DPxMOD ", TgtPtrBegin=" DPxMOD
", Size=%" PRId64 ", Name=%s\n",
DPxPTR(Entry->HstPtrBegin), DPxPTR(Entry->TgtPtrBegin), Size,
(Entry->HstPtrName) ? getNameFromMapping(Entry->HstPtrName).c_str()
: "unknown");
if (HDTTMap->erase(Entry) == 0) {
REPORT("Trying to remove a non-existent map entry\n");
return OFFLOAD_FAIL;
}
return OFFLOAD_SUCCESS;
}
int MappingInfoTy::deallocTgtPtrAndEntry(HostDataToTargetTy *Entry,
int64_t Size) {
assert(Entry && "Trying to deallocate a null entry.");
DP("Deleting tgt data " DPxMOD " of size %" PRId64 " by freeing allocation "
"starting at " DPxMOD "\n",
DPxPTR(Entry->TgtPtrBegin), Size, DPxPTR(Entry->TgtAllocBegin));
void *Event = Entry->getEvent();
if (Event && Device.destroyEvent(Event) != OFFLOAD_SUCCESS) {
REPORT("Failed to destroy event " DPxMOD "\n", DPxPTR(Event));
return OFFLOAD_FAIL;
}
int Ret = Device.deleteData((void *)Entry->TgtAllocBegin);
// Notify the plugin about the unmapped memory.
Ret |= Device.notifyDataUnmapped((void *)Entry->HstPtrBegin);
delete Entry;
return Ret;
}
static void printCopyInfoImpl(int DeviceId, bool H2D, void *SrcPtrBegin,
void *DstPtrBegin, int64_t Size,
HostDataToTargetTy *HT) {
INFO(OMP_INFOTYPE_DATA_TRANSFER, DeviceId,
"Copying data from %s to %s, %sPtr=" DPxMOD ", %sPtr=" DPxMOD
", Size=%" PRId64 ", Name=%s\n",
H2D ? "host" : "device", H2D ? "device" : "host", H2D ? "Hst" : "Tgt",
DPxPTR(H2D ? SrcPtrBegin : DstPtrBegin), H2D ? "Tgt" : "Hst",
DPxPTR(H2D ? DstPtrBegin : SrcPtrBegin), Size,
(HT && HT->HstPtrName) ? getNameFromMapping(HT->HstPtrName).c_str()
: "unknown");
}
void MappingInfoTy::printCopyInfo(
void *TgtPtrBegin, void *HstPtrBegin, int64_t Size, bool H2D,
HostDataToTargetTy *Entry, MappingInfoTy::HDTTMapAccessorTy *HDTTMapPtr) {
auto HDTTMap =
HostDataToTargetMap.getExclusiveAccessor(!!Entry || !!HDTTMapPtr);
LookupResult LR;
if (!Entry) {
LR = lookupMapping(HDTTMapPtr ? *HDTTMapPtr : HDTTMap, HstPtrBegin, Size);
Entry = LR.TPR.getEntry();
}
printCopyInfoImpl(Device.DeviceID, H2D, HstPtrBegin, TgtPtrBegin, Size,
Entry);
}
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