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author | bunnei <bunneidev@gmail.com> | 2018-04-25 05:22:24 +0200 |
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committer | GitHub <noreply@github.com> | 2018-04-25 05:22:24 +0200 |
commit | ea3151f475e170eaaec3ded306a0fe5c1e5944db (patch) | |
tree | 6f7e127c4f58de6071d9a7dbd2af464dbbd14b9b /src/video_core/memory_manager.cpp | |
parent | Merge pull request #393 from lioncash/loader (diff) | |
parent | renderer_opengl: Use correct byte order for framebuffer pixel format ABGR8. (diff) | |
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Diffstat (limited to 'src/video_core/memory_manager.cpp')
-rw-r--r-- | src/video_core/memory_manager.cpp | 94 |
1 files changed, 58 insertions, 36 deletions
diff --git a/src/video_core/memory_manager.cpp b/src/video_core/memory_manager.cpp index 2e1edee03..25984439d 100644 --- a/src/video_core/memory_manager.cpp +++ b/src/video_core/memory_manager.cpp @@ -8,90 +8,112 @@ namespace Tegra { -PAddr MemoryManager::AllocateSpace(u64 size, u64 align) { - boost::optional<PAddr> paddr = FindFreeBlock(size, align); - ASSERT(paddr); +GPUVAddr MemoryManager::AllocateSpace(u64 size, u64 align) { + boost::optional<GPUVAddr> gpu_addr = FindFreeBlock(size, align); + ASSERT(gpu_addr); for (u64 offset = 0; offset < size; offset += PAGE_SIZE) { - ASSERT(PageSlot(*paddr + offset) == static_cast<u64>(PageStatus::Unmapped)); - PageSlot(*paddr + offset) = static_cast<u64>(PageStatus::Allocated); + ASSERT(PageSlot(*gpu_addr + offset) == static_cast<u64>(PageStatus::Unmapped)); + PageSlot(*gpu_addr + offset) = static_cast<u64>(PageStatus::Allocated); } - return *paddr; + return *gpu_addr; } -PAddr MemoryManager::AllocateSpace(PAddr paddr, u64 size, u64 align) { +GPUVAddr MemoryManager::AllocateSpace(GPUVAddr gpu_addr, u64 size, u64 align) { for (u64 offset = 0; offset < size; offset += PAGE_SIZE) { - ASSERT(PageSlot(paddr + offset) == static_cast<u64>(PageStatus::Unmapped)); - PageSlot(paddr + offset) = static_cast<u64>(PageStatus::Allocated); + ASSERT(PageSlot(gpu_addr + offset) == static_cast<u64>(PageStatus::Unmapped)); + PageSlot(gpu_addr + offset) = static_cast<u64>(PageStatus::Allocated); } - return paddr; + return gpu_addr; } -PAddr MemoryManager::MapBufferEx(VAddr vaddr, u64 size) { - boost::optional<PAddr> paddr = FindFreeBlock(size, PAGE_SIZE); - ASSERT(paddr); +GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, u64 size) { + boost::optional<GPUVAddr> gpu_addr = FindFreeBlock(size, PAGE_SIZE); + ASSERT(gpu_addr); for (u64 offset = 0; offset < size; offset += PAGE_SIZE) { - ASSERT(PageSlot(*paddr + offset) == static_cast<u64>(PageStatus::Unmapped)); - PageSlot(*paddr + offset) = vaddr + offset; + ASSERT(PageSlot(*gpu_addr + offset) == static_cast<u64>(PageStatus::Unmapped)); + PageSlot(*gpu_addr + offset) = cpu_addr + offset; } - return *paddr; + MappedRegion region{cpu_addr, *gpu_addr, size}; + mapped_regions.push_back(region); + + return *gpu_addr; } -PAddr MemoryManager::MapBufferEx(VAddr vaddr, PAddr paddr, u64 size) { - ASSERT((paddr & PAGE_MASK) == 0); +GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, GPUVAddr gpu_addr, u64 size) { + ASSERT((gpu_addr & PAGE_MASK) == 0); for (u64 offset = 0; offset < size; offset += PAGE_SIZE) { - ASSERT(PageSlot(paddr + offset) == static_cast<u64>(PageStatus::Allocated)); - PageSlot(paddr + offset) = vaddr + offset; + ASSERT(PageSlot(gpu_addr + offset) == static_cast<u64>(PageStatus::Allocated)); + PageSlot(gpu_addr + offset) = cpu_addr + offset; } - return paddr; + MappedRegion region{cpu_addr, gpu_addr, size}; + mapped_regions.push_back(region); + + return gpu_addr; } -boost::optional<PAddr> MemoryManager::FindFreeBlock(u64 size, u64 align) { - PAddr paddr = 0; +boost::optional<GPUVAddr> MemoryManager::FindFreeBlock(u64 size, u64 align) { + GPUVAddr gpu_addr = 0; u64 free_space = 0; align = (align + PAGE_MASK) & ~PAGE_MASK; - while (paddr + free_space < MAX_ADDRESS) { - if (!IsPageMapped(paddr + free_space)) { + while (gpu_addr + free_space < MAX_ADDRESS) { + if (!IsPageMapped(gpu_addr + free_space)) { free_space += PAGE_SIZE; if (free_space >= size) { - return paddr; + return gpu_addr; } } else { - paddr += free_space + PAGE_SIZE; + gpu_addr += free_space + PAGE_SIZE; free_space = 0; - paddr = Common::AlignUp(paddr, align); + gpu_addr = Common::AlignUp(gpu_addr, align); } } return {}; } -VAddr MemoryManager::PhysicalToVirtualAddress(PAddr paddr) { - VAddr base_addr = PageSlot(paddr); +boost::optional<VAddr> MemoryManager::GpuToCpuAddress(GPUVAddr gpu_addr) { + VAddr base_addr = PageSlot(gpu_addr); ASSERT(base_addr != static_cast<u64>(PageStatus::Unmapped)); - return base_addr + (paddr & PAGE_MASK); + + if (base_addr == static_cast<u64>(PageStatus::Allocated)) { + return {}; + } + + return base_addr + (gpu_addr & PAGE_MASK); +} + +std::vector<GPUVAddr> MemoryManager::CpuToGpuAddress(VAddr cpu_addr) const { + std::vector<GPUVAddr> results; + for (const auto& region : mapped_regions) { + if (cpu_addr >= region.cpu_addr && cpu_addr < (region.cpu_addr + region.size)) { + u64 offset = cpu_addr - region.cpu_addr; + results.push_back(region.gpu_addr + offset); + } + } + return results; } -bool MemoryManager::IsPageMapped(PAddr paddr) { - return PageSlot(paddr) != static_cast<u64>(PageStatus::Unmapped); +bool MemoryManager::IsPageMapped(GPUVAddr gpu_addr) { + return PageSlot(gpu_addr) != static_cast<u64>(PageStatus::Unmapped); } -VAddr& MemoryManager::PageSlot(PAddr paddr) { - auto& block = page_table[(paddr >> (PAGE_BITS + PAGE_TABLE_BITS)) & PAGE_TABLE_MASK]; +VAddr& MemoryManager::PageSlot(GPUVAddr gpu_addr) { + auto& block = page_table[(gpu_addr >> (PAGE_BITS + PAGE_TABLE_BITS)) & PAGE_TABLE_MASK]; if (!block) { block = std::make_unique<PageBlock>(); for (unsigned index = 0; index < PAGE_BLOCK_SIZE; index++) { (*block)[index] = static_cast<u64>(PageStatus::Unmapped); } } - return (*block)[(paddr >> PAGE_BITS) & PAGE_BLOCK_MASK]; + return (*block)[(gpu_addr >> PAGE_BITS) & PAGE_BLOCK_MASK]; } } // namespace Tegra |