diff --git a/src/video_core/memory_manager.cpp b/src/video_core/memory_manager.cpp index e76b598424..8417324ffd 100644 --- a/src/video_core/memory_manager.cpp +++ b/src/video_core/memory_manager.cpp @@ -77,16 +77,17 @@ GPUVAddr MemoryManager::UnmapBuffer(GPUVAddr gpu_addr, u64 size) { return gpu_addr; } -GPUVAddr MemoryManager::FindFreeRegion(GPUVAddr region_start, u64 size) { +GPUVAddr MemoryManager::FindFreeRegion(GPUVAddr region_start, u64 size) const { // Find the first Free VMA. - const VMAHandle vma_handle{std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) { - if (vma.second.type != VirtualMemoryArea::Type::Unmapped) { - return false; - } + const VMAHandle vma_handle{ + std::find_if(vma_map.begin(), vma_map.end(), [region_start, size](const auto& vma) { + if (vma.second.type != VirtualMemoryArea::Type::Unmapped) { + return false; + } - const VAddr vma_end{vma.second.base + vma.second.size}; - return vma_end > region_start && vma_end >= region_start + size; - })}; + const VAddr vma_end{vma.second.base + vma.second.size}; + return vma_end > region_start && vma_end >= region_start + size; + })}; if (vma_handle == vma_map.end()) { return {}; @@ -99,12 +100,12 @@ bool MemoryManager::IsAddressValid(GPUVAddr addr) const { return (addr >> page_bits) < page_table.pointers.size(); } -std::optional MemoryManager::GpuToCpuAddress(GPUVAddr addr) { +std::optional MemoryManager::GpuToCpuAddress(GPUVAddr addr) const { if (!IsAddressValid(addr)) { return {}; } - VAddr cpu_addr{page_table.backing_addr[addr >> page_bits]}; + const VAddr cpu_addr{page_table.backing_addr[addr >> page_bits]}; if (cpu_addr) { return cpu_addr + (addr & page_mask); } @@ -113,7 +114,7 @@ std::optional MemoryManager::GpuToCpuAddress(GPUVAddr addr) { } template -T MemoryManager::Read(GPUVAddr addr) { +T MemoryManager::Read(GPUVAddr addr) const { if (!IsAddressValid(addr)) { return {}; } @@ -165,10 +166,10 @@ void MemoryManager::Write(GPUVAddr addr, T data) { } } -template u8 MemoryManager::Read(GPUVAddr addr); -template u16 MemoryManager::Read(GPUVAddr addr); -template u32 MemoryManager::Read(GPUVAddr addr); -template u64 MemoryManager::Read(GPUVAddr addr); +template u8 MemoryManager::Read(GPUVAddr addr) const; +template u16 MemoryManager::Read(GPUVAddr addr) const; +template u32 MemoryManager::Read(GPUVAddr addr) const; +template u64 MemoryManager::Read(GPUVAddr addr) const; template void MemoryManager::Write(GPUVAddr addr, u8 data); template void MemoryManager::Write(GPUVAddr addr, u16 data); template void MemoryManager::Write(GPUVAddr addr, u32 data); @@ -179,8 +180,8 @@ u8* MemoryManager::GetPointer(GPUVAddr addr) { return {}; } - u8* page_pointer{page_table.pointers[addr >> page_bits]}; - if (page_pointer) { + u8* const page_pointer{page_table.pointers[addr >> page_bits]}; + if (page_pointer != nullptr) { return page_pointer + (addr & page_mask); } @@ -188,7 +189,21 @@ u8* MemoryManager::GetPointer(GPUVAddr addr) { return {}; } -void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) { +const u8* MemoryManager::GetPointer(GPUVAddr addr) const { + if (!IsAddressValid(addr)) { + return {}; + } + + const u8* const page_pointer{page_table.pointers[addr >> page_bits]}; + if (page_pointer != nullptr) { + return page_pointer + (addr & page_mask); + } + + LOG_ERROR(HW_GPU, "Unknown GetPointer @ 0x{:016X}", addr); + return {}; +} + +void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const { std::memcpy(dest_buffer, GetPointer(src_addr), size); } void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size) { diff --git a/src/video_core/memory_manager.h b/src/video_core/memory_manager.h index 34744bb27f..178e2f6552 100644 --- a/src/video_core/memory_manager.h +++ b/src/video_core/memory_manager.h @@ -50,17 +50,18 @@ public: GPUVAddr MapBufferEx(VAddr cpu_addr, u64 size); GPUVAddr MapBufferEx(VAddr cpu_addr, GPUVAddr addr, u64 size); GPUVAddr UnmapBuffer(GPUVAddr addr, u64 size); - std::optional GpuToCpuAddress(GPUVAddr addr); + std::optional GpuToCpuAddress(GPUVAddr addr) const; template - T Read(GPUVAddr addr); + T Read(GPUVAddr addr) const; template void Write(GPUVAddr addr, T data); u8* GetPointer(GPUVAddr addr); + const u8* GetPointer(GPUVAddr addr) const; - void ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size); + void ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const; void WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size); void CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, std::size_t size); @@ -127,7 +128,7 @@ private: void UpdatePageTableForVMA(const VirtualMemoryArea& vma); /// Finds a free (unmapped region) of the specified size starting at the specified address. - GPUVAddr FindFreeRegion(GPUVAddr region_start, u64 size); + GPUVAddr FindFreeRegion(GPUVAddr region_start, u64 size) const; private: static constexpr u64 page_bits{16};