268 lines
6.8 KiB
C++
268 lines
6.8 KiB
C++
#include <iostream>
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#include <unistd.h>
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#include <string.h>
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#include <vortex.h>
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#include <vector>
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#include <assert.h>
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#include "common.h"
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#define RT_CHECK(_expr) \
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do { \
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int _ret = _expr; \
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if (0 == _ret) \
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break; \
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printf("Error: '%s' returned %d!\n", #_expr, (int)_ret); \
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cleanup(); \
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exit(-1); \
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} while (false)
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///////////////////////////////////////////////////////////////////////////////
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const char* kernel_file = "kernel.bin";
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uint32_t count = 0;
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std::vector<int> src_data;
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std::vector<int> ref_data;
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vx_device_h device = nullptr;
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std::vector<uint8_t> staging_buf;
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kernel_arg_t kernel_arg = {};
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static void show_usage() {
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std::cout << "Vortex Test." << std::endl;
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std::cout << "Usage: [-k: kernel] [-n words] [-h: help]" << std::endl;
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}
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static void parse_args(int argc, char **argv) {
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int c;
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while ((c = getopt(argc, argv, "n:k:h?")) != -1) {
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switch (c) {
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case 'n':
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count = atoi(optarg);
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break;
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case 'k':
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kernel_file = optarg;
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break;
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case 'h':
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case '?': {
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show_usage();
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exit(0);
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} break;
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default:
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show_usage();
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exit(-1);
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}
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}
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}
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void cleanup() {
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if (device) {
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vx_mem_free(device, kernel_arg.src_addr);
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vx_mem_free(device, kernel_arg.dst_addr);
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vx_dev_close(device);
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}
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}
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void gen_input_data(uint32_t num_points) {
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src_data.resize(num_points);
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for (uint32_t i = 0; i < src_data.size(); ++i) {
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int value = std::rand();
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src_data[i] = value;
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//std::cout << std::dec << i << ": value=0x" << std::hex << value << std::endl;
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}
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}
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void gen_ref_data(uint32_t num_points) {
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ref_data.resize(num_points);
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for (int i = 0; i < (int)ref_data.size(); ++i) {
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int value = src_data.at(i);
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// none taken
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if (i >= 0x7fffffff) {
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value = 0;
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} else {
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value += 2;
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}
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// diverge
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if (i > 1) {
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if (i > 2) {
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value += 6;
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} else {
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value += 5;
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}
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} else {
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if (i > 0) {
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value += 4;
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} else {
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value += 3;
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}
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}
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// all taken
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if (i >= 0) {
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value += 7;
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} else {
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value = 0;
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}
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// loop
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for (int j = 0, n = i; j < n; ++j) {
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value += src_data.at(j);
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}
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// switch
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switch (i) {
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case 0:
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value += 1;
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break;
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case 1:
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value -= 1;
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break;
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case 2:
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value *= 3;
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break;
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case 3:
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value *= 5;
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break;
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default:
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assert(i < (int)num_points);
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break;
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}
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// select
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value += (i >= 0) ? ((i > 5) ? src_data.at(0) : i) : ((i < 5) ? src_data.at(1) : -i);
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// min/max
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value += std::min(src_data.at(i), value);
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value += std::max(src_data.at(i), value);
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ref_data[i] = value;
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}
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}
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int run_test(const kernel_arg_t& kernel_arg,
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uint32_t buf_size,
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uint32_t num_points) {
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// start device
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std::cout << "start device" << std::endl;
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RT_CHECK(vx_start(device));
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// wait for completion
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std::cout << "wait for completion" << std::endl;
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RT_CHECK(vx_ready_wait(device, VX_MAX_TIMEOUT));
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// download destination buffer
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std::cout << "download destination buffer" << std::endl;
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RT_CHECK(vx_copy_from_dev(device, staging_buf.data(), kernel_arg.dst_addr, buf_size));
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// verify result
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std::cout << "verify result" << std::endl;
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{
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int errors = 0;
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auto buf_ptr = (int32_t*)staging_buf.data();
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for (uint32_t i = 0; i < num_points; ++i) {
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int ref = ref_data.at(i);
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int cur = buf_ptr[i];
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if (cur != ref) {
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std::cout << "error at result #" << std::dec << i
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<< std::hex << ": actual 0x" << cur << ", expected 0x" << ref << std::endl;
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++errors;
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}
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}
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if (errors != 0) {
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std::cout << "Found " << std::dec << errors << " errors!" << std::endl;
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std::cout << "FAILED!" << std::endl;
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return 1;
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}
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}
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return 0;
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}
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int main(int argc, char *argv[]) {
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// parse command arguments
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parse_args(argc, argv);
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if (count == 0) {
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count = 1;
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}
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std::srand(50);
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// open device connection
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std::cout << "open device connection" << std::endl;
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RT_CHECK(vx_dev_open(&device));
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uint32_t num_points = count;
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// generate input data
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gen_input_data(num_points);
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// generate reference data
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gen_ref_data(num_points);
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uint32_t src_buf_size = src_data.size() * sizeof(int32_t);
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uint32_t dst_buf_size = ref_data.size() * sizeof(int32_t);
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std::cout << "number of points: " << num_points << std::endl;
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std::cout << "buffer size: " << dst_buf_size << " bytes" << std::endl;
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// upload program
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std::cout << "upload program" << std::endl;
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RT_CHECK(vx_upload_kernel_file(device, kernel_file));
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// allocate device memory
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std::cout << "allocate device memory" << std::endl;
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RT_CHECK(vx_mem_alloc(device, src_buf_size, VX_MEM_TYPE_GLOBAL, &kernel_arg.src_addr));
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RT_CHECK(vx_mem_alloc(device, dst_buf_size, VX_MEM_TYPE_GLOBAL, &kernel_arg.dst_addr));
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kernel_arg.num_points = num_points;
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std::cout << "dev_src=0x" << std::hex << kernel_arg.src_addr << std::endl;
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std::cout << "dev_dst=0x" << std::hex << kernel_arg.dst_addr << std::endl;
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// allocate staging buffer
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std::cout << "allocate staging buffer" << std::endl;
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uint32_t staging_buf_size = std::max<uint32_t>(src_buf_size,
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std::max<uint32_t>(dst_buf_size,
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sizeof(kernel_arg_t)));
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staging_buf.resize(staging_buf_size);
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// upload kernel argument
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std::cout << "upload kernel argument" << std::endl;
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memcpy(staging_buf.data(), &kernel_arg, sizeof(kernel_arg_t));
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RT_CHECK(vx_copy_to_dev(device, KERNEL_ARG_DEV_MEM_ADDR, staging_buf.data(), sizeof(kernel_arg_t)));
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// upload source buffer
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{
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std::cout << "upload source buffer" << std::endl;
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auto buf_ptr = staging_buf.data();
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memcpy(buf_ptr, src_data.data(), num_points * sizeof(int32_t));
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RT_CHECK(vx_copy_to_dev(device, kernel_arg.src_addr, staging_buf.data(), src_buf_size));
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}
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// clear destination buffer
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{
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std::cout << "clear destination buffer" << std::endl;
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auto buf_ptr = (int32_t*)staging_buf.data();
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for (uint32_t i = 0; i < num_points; ++i) {
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buf_ptr[i] = 0xdeadbeef;
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}
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RT_CHECK(vx_copy_to_dev(device, kernel_arg.dst_addr, staging_buf.data(), dst_buf_size));
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}
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// run tests
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std::cout << "run tests" << std::endl;
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RT_CHECK(run_test(kernel_arg, dst_buf_size, num_points));
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// cleanup
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std::cout << "cleanup" << std::endl;
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cleanup();
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std::cout << "PASSED!" << std::endl;
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return 0;
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} |