92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
#include <iostream>
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#include <fstream>
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#include <cstring>
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#include <vortex.h>
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#include <VX_config.h>
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extern int vx_upload_kernel_bytes(vx_device_h device, const void* content, size_t size) {
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int err = 0;
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if (NULL == content || 0 == size)
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return -1;
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uint32_t buffer_transfer_size = 65536;
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unsigned kernel_base_addr;
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err = vx_dev_caps(device, VX_CAPS_KERNEL_BASE_ADDR, &kernel_base_addr);
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if (err != 0)
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return -1;
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// allocate device buffer
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vx_buffer_h buffer;
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err = vx_alloc_shared_mem(device, buffer_transfer_size, &buffer);
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if (err != 0)
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return -1;
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// get buffer address
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auto buf_ptr = (uint8_t*)vx_host_ptr(buffer);
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#if defined(USE_SIMX)
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// default startup routine
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((uint32_t*)buf_ptr)[0] = 0xf1401073;
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((uint32_t*)buf_ptr)[1] = 0xf1401073;
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((uint32_t*)buf_ptr)[2] = 0x30101073;
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((uint32_t*)buf_ptr)[3] = 0x800000b7;
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((uint32_t*)buf_ptr)[4] = 0x000080e7;
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err = vx_copy_to_dev(buffer, 0, 5 * 4, 0);
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if (err != 0) {
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vx_buf_release(buffer);
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return err;
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}
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// newlib io simulator trap
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((uint32_t*)buf_ptr)[0] = 0x00008067;
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err = vx_copy_to_dev(buffer, 0x70000000, 4, 0);
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if (err != 0) {
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vx_buf_release(buffer);
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return err;
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}
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#endif
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//
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// upload content
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//
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size_t offset = 0;
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while (offset < size) {
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auto chunk_size = std::min<size_t>(buffer_transfer_size, size - offset);
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std::memcpy(buf_ptr, (uint8_t*)content + offset, chunk_size);
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err = vx_copy_to_dev(buffer, kernel_base_addr + offset, chunk_size, 0);
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if (err != 0) {
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vx_buf_release(buffer);
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return err;
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}
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offset += chunk_size;
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}
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vx_buf_release(buffer);
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return 0;
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}
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extern int vx_upload_kernel_file(vx_device_h device, const char* filename) {
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std::ifstream ifs(filename);
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if (!ifs) {
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std::cout << "error: " << filename << " not found" << std::endl;
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return -1;
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}
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// read file content
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ifs.seekg(0, ifs.end);
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auto size = ifs.tellg();
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auto content = new char [size];
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ifs.seekg(0, ifs.beg);
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ifs.read(content, size);
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// upload
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int err = vx_upload_kernel_bytes(device, content, size);
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// release buffer
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delete[] content;
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return err;
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} |