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Code Issues Releases Activity

MemoryManager: Fix race conditions.

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This commit is contained in:
Fernando Sahmkow 2023-04-28 23:53:02 +02:00
parent e4dc73f61e
commit 9a7c172f76
2 changed files with 11 additions and 3 deletions
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10
src/video_core/memory_manager.cpp
View file

@ -170,6 +170,7 @@ void MemoryManager::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_)
GPUVAddr MemoryManager::Map(GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size, PTEKind kind,
bool is_big_pages) {
std::unique_lock<std::mutex> lock(guard);
if (is_big_pages) [[likely]] {
return BigPageTableOp<EntryType::Mapped>(gpu_addr, cpu_addr, size, kind);
}
@ -177,6 +178,7 @@ GPUVAddr MemoryManager::Map(GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size,
}
GPUVAddr MemoryManager::MapSparse(GPUVAddr gpu_addr, std::size_t size, bool is_big_pages) {
std::unique_lock<std::mutex> lock(guard);
if (is_big_pages) [[likely]] {
return BigPageTableOp<EntryType::Reserved>(gpu_addr, 0, size, PTEKind::INVALID);
}
@ -187,6 +189,7 @@ void MemoryManager::Unmap(GPUVAddr gpu_addr, std::size_t size) {
if (size == 0) {
return;
}
std::unique_lock<std::mutex> lock(guard);
GetSubmappedRangeImpl<false>(gpu_addr, size, page_stash);
for (const auto& [map_addr, map_size] : page_stash) {
@ -553,6 +556,7 @@ size_t MemoryManager::MaxContinuousRange(GPUVAddr gpu_addr, size_t size) const {
}
size_t MemoryManager::GetMemoryLayoutSize(GPUVAddr gpu_addr, size_t max_size) const {
std::unique_lock<std::mutex> lock(guard);
return kind_map.GetContinuousSizeFrom(gpu_addr);
}
@ -745,10 +749,10 @@ void MemoryManager::FlushCaching() {
return;
}
accumulator->Callback([this](GPUVAddr addr, size_t size) {
GetSubmappedRangeImpl<false>(addr, size, page_stash);
GetSubmappedRangeImpl<false>(addr, size, page_stash2);
});
rasterizer->InnerInvalidation(page_stash);
page_stash.clear();
rasterizer->InnerInvalidation(page_stash2);
page_stash2.clear();
accumulator->Clear();
}

4
src/video_core/memory_manager.h
View file

@ -5,6 +5,7 @@
#include <atomic>
#include <map>
#include <mutex>
#include <optional>
#include <vector>
@ -215,6 +216,9 @@ private:
std::vector<u64> big_page_continuous;
std::vector<std::pair<VAddr, std::size_t>> page_stash{};
std::vector<std::pair<VAddr, std::size_t>> page_stash2{};
mutable std::mutex guard;
static constexpr size_t continuous_bits = 64;