mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-23 00:00:01 +01:00
5242b87e4c
This is change renders memory allocators only dependend on an address space id that they are managing, allowing easy implementation of other algorithms and instantiation in memory IP blocks.
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
#include <criterion/criterion.h>
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#include <villas/log.hpp>
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#include <villas/fpga/card.hpp>
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#include <villas/fpga/ips/dma.hpp>
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#include <villas/utils.h>
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#include "global.hpp"
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#include <villas/memory.hpp>
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Test(fpga, dma, .description = "DMA")
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{
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auto logger = loggerGetOrCreate("unittest:dma");
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size_t count = 0;
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for(auto& ip : state.cards.front()->ips) {
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// skip non-dma IPs
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if(*ip != villas::fpga::Vlnv("xilinx.com:ip:axi_dma:"))
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continue;
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logger->info("Testing {}", *ip);
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auto dma = reinterpret_cast<villas::fpga::ip::Dma&>(*ip);
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if(not dma.connectLoopback()) {
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continue;
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}
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count++;
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if(not dma.loopbackPossible()) {
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logger->info("Loopback test not possible for {}", *ip);
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continue;
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}
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// Simple DMA can only transfer up to 4 kb due to PCIe page size burst
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// limitation
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size_t len = 4 * (1 << 10);
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/* Allocate memory to use with DMA */
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auto src = villas::HostRam::getAllocator().allocate<char>(len);
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auto dst = villas::HostRam::getAllocator().allocate<char>(len);
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/* Get new random data */
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const size_t lenRandom = read_random(&src, len);
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cr_assert(len == lenRandom, "Failed to get random data");
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/* Start transfer */
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cr_assert(dma.pingPong(src.getMemoryBlock(), dst.getMemoryBlock(), len),
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"DMA ping pong failed");
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/* Compare data */
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cr_assert(memcmp(&src, &dst, len) == 0, "Data not equal");
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logger->info(TXT_GREEN("Passed"));
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}
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villas::MemoryManager::get().dump();
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cr_assert(count > 0, "No Dma found");
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}
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