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//===------- Offload API tests - olLaunchHostFunction ---------------------===//
//
// 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 "../common/Fixtures.hpp"
#include <OffloadAPI.h>
#include <gtest/gtest.h>
#include <thread>
struct olLaunchHostFunctionTest : OffloadQueueTest {};
OFFLOAD_TESTS_INSTANTIATE_DEVICE_FIXTURE(olLaunchHostFunctionTest);
struct olLaunchHostFunctionKernelTest : OffloadKernelTest {};
OFFLOAD_TESTS_INSTANTIATE_DEVICE_FIXTURE(olLaunchHostFunctionKernelTest);
TEST_P(olLaunchHostFunctionTest, Success) {
ASSERT_SUCCESS(olLaunchHostFunction(Queue, [](void *) {}, nullptr));
}
TEST_P(olLaunchHostFunctionTest, SuccessSequence) {
uint32_t Buff[16] = {1, 1};
for (auto BuffPtr = &Buff[2]; BuffPtr != &Buff[16]; BuffPtr++) {
ASSERT_SUCCESS(olLaunchHostFunction(
Queue,
[](void *BuffPtr) {
uint32_t *AsU32 = reinterpret_cast<uint32_t *>(BuffPtr);
AsU32[0] = AsU32[-1] + AsU32[-2];
},
BuffPtr));
}
ASSERT_SUCCESS(olSyncQueue(Queue));
for (uint32_t i = 2; i < 16; i++) {
ASSERT_EQ(Buff[i], Buff[i - 1] + Buff[i - 2]);
}
}
TEST_P(olLaunchHostFunctionKernelTest, SuccessBlocking) {
// Verify that a host kernel can block execution - A host task is created that
// only resolves when Block is set to false.
ol_kernel_launch_size_args_t LaunchArgs;
LaunchArgs.Dimensions = 1;
LaunchArgs.GroupSize = {64, 1, 1};
LaunchArgs.NumGroups = {1, 1, 1};
LaunchArgs.DynSharedMemory = 0;
ol_queue_handle_t Queue;
ASSERT_SUCCESS(olCreateQueue(Device, &Queue));
void *Mem;
ASSERT_SUCCESS(olMemAlloc(Device, OL_ALLOC_TYPE_MANAGED,
LaunchArgs.GroupSize.x * sizeof(uint32_t), &Mem));
uint32_t *Data = (uint32_t *)Mem;
for (uint32_t i = 0; i < 64; i++) {
Data[i] = 0;
}
volatile bool Block = true;
ASSERT_SUCCESS(olLaunchHostFunction(
Queue,
[](void *Ptr) {
volatile bool *Block =
reinterpret_cast<volatile bool *>(reinterpret_cast<bool *>(Ptr));
while (*Block)
std::this_thread::yield();
},
const_cast<bool *>(&Block)));
struct {
void *Mem;
} Args{Mem};
ASSERT_SUCCESS(
olLaunchKernel(Queue, Device, Kernel, &Args, sizeof(Args), &LaunchArgs));
std::this_thread::sleep_for(std::chrono::milliseconds(500));
for (uint32_t i = 0; i < 64; i++) {
ASSERT_EQ(Data[i], 0);
}
Block = false;
ASSERT_SUCCESS(olSyncQueue(Queue));
for (uint32_t i = 0; i < 64; i++) {
ASSERT_EQ(Data[i], i);
}
ASSERT_SUCCESS(olDestroyQueue(Queue));
ASSERT_SUCCESS(olMemFree(Mem));
}
TEST_P(olLaunchHostFunctionTest, InvalidNullCallback) {
ASSERT_ERROR(OL_ERRC_INVALID_NULL_POINTER,
olLaunchHostFunction(Queue, nullptr, nullptr));
}
TEST_P(olLaunchHostFunctionTest, InvalidNullQueue) {
ASSERT_ERROR(OL_ERRC_INVALID_NULL_HANDLE,
olLaunchHostFunction(nullptr, [](void *) {}, nullptr));
}
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