From dd790abab00379c232ea508fc43e87bd05d003f6 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Thu, 21 Jan 2021 19:08:15 -0300 Subject: [PATCH] video_core/memory_manager: Add GPU address based flush method Allow flushing rasterizer contents based on a GPU address. --- src/video_core/memory_manager.cpp | 15 +++++++++++++++ src/video_core/memory_manager.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/src/video_core/memory_manager.cpp b/src/video_core/memory_manager.cpp index 65feff588..1926bb025 100644 --- a/src/video_core/memory_manager.cpp +++ b/src/video_core/memory_manager.cpp @@ -314,6 +314,21 @@ void MemoryManager::WriteBlockUnsafe(GPUVAddr gpu_dest_addr, const void* src_buf } } +void MemoryManager::FlushRegion(GPUVAddr gpu_addr, size_t size) const { + size_t remaining_size{size}; + size_t page_index{gpu_addr >> page_bits}; + size_t page_offset{gpu_addr & page_mask}; + while (remaining_size > 0) { + const size_t num_bytes{std::min(page_size - page_offset, remaining_size)}; + if (const auto page_addr{GpuToCpuAddress(page_index << page_bits)}; page_addr) { + rasterizer->FlushRegion(*page_addr + page_offset, num_bytes); + } + ++page_index; + page_offset = 0; + remaining_size -= num_bytes; + } +} + void MemoryManager::CopyBlock(GPUVAddr gpu_dest_addr, GPUVAddr gpu_src_addr, std::size_t size) { std::vector tmp_buffer(size); ReadBlock(gpu_src_addr, tmp_buffer.data(), size); diff --git a/src/video_core/memory_manager.h b/src/video_core/memory_manager.h index c35e57689..e3c0c53a9 100644 --- a/src/video_core/memory_manager.h +++ b/src/video_core/memory_manager.h @@ -131,6 +131,8 @@ private: void TryLockPage(PageEntry page_entry, std::size_t size); void TryUnlockPage(PageEntry page_entry, std::size_t size); + void FlushRegion(GPUVAddr gpu_addr, size_t size) const; + [[nodiscard]] static constexpr std::size_t PageEntryIndex(GPUVAddr gpu_addr) { return (gpu_addr >> page_bits) & page_table_mask; }