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graphics: copy sparse buffer uploads through resident mappings

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This commit is contained in:
nmzik
2026-10-13 01:53:15 +02:00
parent 9a3aca963a
commit 40692dfb64
6 changed files with 172 additions and 42 deletions
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src/graphics/host_gpu/renderer/cache/bufferCache.cpp
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+6 -2
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@@ -471,7 +471,9 @@ vk::Buffer BufferCache::UploadCopies(Buffer& buffer, std::span<vk::BufferCopy> c
vk::BufferUsageFlagBits::eTransferSrc, [&](uint8_t* mapped, uint64_t base_offset) {
for (auto& copy: copies) {
const auto address = buffer.CpuAddress() + copy.dstOffset;
std::memcpy(mapped + copy.srcOffset, reinterpret_cast<const void*>(address), copy.size);
if (!LibKernel::Memory::CopySparseMemory(address, mapped + copy.srcOffset, copy.size)) {
EXIT("BufferCache: failed to read sparse guest buffer memory\n");
}
copy.srcOffset += base_offset;
}
});
@@ -493,7 +495,9 @@ std::pair<Buffer*, uint64_t> BufferCache::ObtainBuffer(uint64_t vaddr, uint64_t
m_graphics.physical_device_properties.limits.minUniformBufferOffsetAlignment, 1);
auto [mapped, offset] = m_stream_buffer.Map(size, alignment, false);
if (mapped != nullptr) {
std::memcpy(mapped, reinterpret_cast<const void*>(vaddr), size);
if (!LibKernel::Memory::CopySparseMemory(vaddr, mapped, size)) {
EXIT("BufferCache: failed to read sparse guest buffer memory\n");
}
m_stream_buffer.Commit();
return {&m_stream_buffer, offset};
}