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video_core/memory_manager: Deduplicate Read/WriteBlock

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This commit is contained in:
ameerj 2021-12-30 23:36:00 -05:00
parent 667a8ae163
commit 2428214c4b
2 changed files with 34 additions and 49 deletions
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68
src/video_core/memory_manager.cpp
View file

@ -265,7 +265,8 @@ size_t MemoryManager::BytesToMapEnd(GPUVAddr gpu_addr) const noexcept {
return it->second - (gpu_addr - it->first);
}
void MemoryManager::ReadBlock(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size) const {
void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
bool is_safe) const {
std::size_t remaining_size{size};
std::size_t page_index{gpu_src_addr >> page_bits};
std::size_t page_offset{gpu_src_addr & page_mask};
@ -276,32 +277,12 @@ void MemoryManager::ReadBlock(GPUVAddr gpu_src_addr, void* dest_buffer, std::siz
if (const auto page_addr{GpuToCpuAddress(page_index << page_bits)}; page_addr) {
const auto src_addr{*page_addr + page_offset};
// Flush must happen on the rasterizer interface, such that memory is always synchronous
// when it is read (even when in asynchronous GPU mode). Fixes Dead Cells title menu.
if (is_safe) {
// Flush must happen on the rasterizer interface, such that memory is always
// synchronous when it is read (even when in asynchronous GPU mode).
// Fixes Dead Cells title menu.
rasterizer->FlushRegion(src_addr, copy_amount);
system.Memory().ReadBlockUnsafe(src_addr, dest_buffer, copy_amount);
}
page_index++;
page_offset = 0;
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
remaining_size -= copy_amount;
}
}
void MemoryManager::ReadBlockUnsafe(GPUVAddr gpu_src_addr, void* dest_buffer,
const std::size_t size) const {
std::size_t remaining_size{size};
std::size_t page_index{gpu_src_addr >> page_bits};
std::size_t page_offset{gpu_src_addr & page_mask};
while (remaining_size > 0) {
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
if (const auto page_addr{GpuToCpuAddress(page_index << page_bits)}; page_addr) {
const auto src_addr{*page_addr + page_offset};
system.Memory().ReadBlockUnsafe(src_addr, dest_buffer, copy_amount);
} else {
std::memset(dest_buffer, 0, copy_amount);
@ -314,7 +295,17 @@ void MemoryManager::ReadBlockUnsafe(GPUVAddr gpu_src_addr, void* dest_buffer,
}
}
void MemoryManager::WriteBlock(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size) {
void MemoryManager::ReadBlock(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size) const {
ReadBlockImpl(gpu_src_addr, dest_buffer, size, true);
}
void MemoryManager::ReadBlockUnsafe(GPUVAddr gpu_src_addr, void* dest_buffer,
const std::size_t size) const {
ReadBlockImpl(gpu_src_addr, dest_buffer, size, false);
}
void MemoryManager::WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size,
bool is_safe) {
std::size_t remaining_size{size};
std::size_t page_index{gpu_dest_addr >> page_bits};
std::size_t page_offset{gpu_dest_addr & page_mask};
@ -326,9 +317,11 @@ void MemoryManager::WriteBlock(GPUVAddr gpu_dest_addr, const void* src_buffer, s
if (const auto page_addr{GpuToCpuAddress(page_index << page_bits)}; page_addr) {
const auto dest_addr{*page_addr + page_offset};
if (is_safe) {
// Invalidate must happen on the rasterizer interface, such that memory is always
// synchronous when it is written (even when in asynchronous GPU mode).
rasterizer->InvalidateRegion(dest_addr, copy_amount);
}
system.Memory().WriteBlockUnsafe(dest_addr, src_buffer, copy_amount);
}
@ -339,26 +332,13 @@ void MemoryManager::WriteBlock(GPUVAddr gpu_dest_addr, const void* src_buffer, s
}
}
void MemoryManager::WriteBlock(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size) {
WriteBlockImpl(gpu_dest_addr, src_buffer, size, true);
}
void MemoryManager::WriteBlockUnsafe(GPUVAddr gpu_dest_addr, const void* src_buffer,
std::size_t size) {
std::size_t remaining_size{size};
std::size_t page_index{gpu_dest_addr >> page_bits};
std::size_t page_offset{gpu_dest_addr & page_mask};
while (remaining_size > 0) {
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
if (const auto page_addr{GpuToCpuAddress(page_index << page_bits)}; page_addr) {
const auto dest_addr{*page_addr + page_offset};
system.Memory().WriteBlockUnsafe(dest_addr, src_buffer, copy_amount);
}
page_index++;
page_offset = 0;
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
remaining_size -= copy_amount;
}
WriteBlockImpl(gpu_dest_addr, src_buffer, size, false);
}
void MemoryManager::FlushRegion(GPUVAddr gpu_addr, size_t size) const {

5
src/video_core/memory_manager.h
View file

@ -155,6 +155,11 @@ private:
void FlushRegion(GPUVAddr gpu_addr, size_t size) const;
void ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
bool is_safe) const;
void WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size,
bool is_safe);
[[nodiscard]] static constexpr std::size_t PageEntryIndex(GPUVAddr gpu_addr) {
return (gpu_addr >> page_bits) & page_table_mask;
}