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Merge pull request #2352 from bunnei/mem-manager-fixes

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memory_manager: Improved implementation of read/write/copy block.
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bunnei 2019-04-07 17:44:59 -04:00 committed by GitHub
commit 80162888e6
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3 changed files with 84 additions and 12 deletions
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2
src/video_core/gpu.cpp
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@ -31,7 +31,7 @@ u32 FramebufferConfig::BytesPerPixel(PixelFormat format) {
GPU::GPU(Core::System& system, VideoCore::RendererBase& renderer) : renderer{renderer} {
auto& rasterizer{renderer.Rasterizer()};
memory_manager = std::make_unique<Tegra::MemoryManager>();
memory_manager = std::make_unique<Tegra::MemoryManager>(rasterizer);
dma_pusher = std::make_unique<Tegra::DmaPusher>(*this);
maxwell_3d = std::make_unique<Engines::Maxwell3D>(system, rasterizer, *memory_manager);
fermi_2d = std::make_unique<Engines::Fermi2D>(rasterizer, *memory_manager);

87
src/video_core/memory_manager.cpp
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@ -5,16 +5,13 @@
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/memory.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_base.h"
namespace Tegra {
MemoryManager::MemoryManager() {
MemoryManager::MemoryManager(VideoCore::RasterizerInterface& rasterizer) : rasterizer{rasterizer} {
std::fill(page_table.pointers.begin(), page_table.pointers.end(), nullptr);
std::fill(page_table.attributes.begin(), page_table.attributes.end(),
Common::PageType::Unmapped);
@ -70,8 +67,7 @@ GPUVAddr MemoryManager::UnmapBuffer(GPUVAddr gpu_addr, u64 size) {
const u64 aligned_size{Common::AlignUp(size, page_size)};
const CacheAddr cache_addr{ToCacheAddr(GetPointer(gpu_addr))};
Core::System::GetInstance().Renderer().Rasterizer().FlushAndInvalidateRegion(cache_addr,
aligned_size);
rasterizer.FlushAndInvalidateRegion(cache_addr, aligned_size);
UnmapRange(gpu_addr, aligned_size);
return gpu_addr;
@ -204,14 +200,85 @@ const u8* MemoryManager::GetPointer(GPUVAddr addr) const {
}
void MemoryManager::ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size) const {
std::memcpy(dest_buffer, GetPointer(src_addr), size);
std::size_t remaining_size{size};
std::size_t page_index{src_addr >> page_bits};
std::size_t page_offset{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)};
switch (page_table.attributes[page_index]) {
case Common::PageType::Memory: {
const u8* src_ptr{page_table.pointers[page_index] + page_offset};
rasterizer.FlushRegion(ToCacheAddr(src_ptr), copy_amount);
std::memcpy(dest_buffer, src_ptr, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
remaining_size -= copy_amount;
}
}
void MemoryManager::WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size) {
std::memcpy(GetPointer(dest_addr), src_buffer, size);
std::size_t remaining_size{size};
std::size_t page_index{dest_addr >> page_bits};
std::size_t page_offset{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)};
switch (page_table.attributes[page_index]) {
case Common::PageType::Memory: {
u8* dest_ptr{page_table.pointers[page_index] + page_offset};
rasterizer.InvalidateRegion(ToCacheAddr(dest_ptr), copy_amount);
std::memcpy(dest_ptr, src_buffer, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
remaining_size -= copy_amount;
}
}
void MemoryManager::CopyBlock(GPUVAddr dest_addr, GPUVAddr src_addr, std::size_t size) {
std::memcpy(GetPointer(dest_addr), GetPointer(src_addr), size);
std::size_t remaining_size{size};
std::size_t page_index{src_addr >> page_bits};
std::size_t page_offset{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)};
switch (page_table.attributes[page_index]) {
case Common::PageType::Memory: {
const u8* src_ptr{page_table.pointers[page_index] + page_offset};
rasterizer.FlushRegion(ToCacheAddr(src_ptr), copy_amount);
WriteBlock(dest_addr, src_ptr, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
dest_addr += static_cast<VAddr>(copy_amount);
src_addr += static_cast<VAddr>(copy_amount);
remaining_size -= copy_amount;
}
}
void MemoryManager::MapPages(GPUVAddr base, u64 size, u8* memory, Common::PageType type,
@ -351,7 +418,7 @@ MemoryManager::VMAIter MemoryManager::CarveVMA(GPUVAddr base, u64 size) {
const VirtualMemoryArea& vma{vma_handle->second};
if (vma.type == VirtualMemoryArea::Type::Mapped) {
// Region is already allocated
return {};
return vma_handle;
}
const VAddr start_in_vma{base - vma.base};

7
src/video_core/memory_manager.h
View File

@ -10,6 +10,10 @@
#include "common/common_types.h"
#include "common/page_table.h"
namespace VideoCore {
class RasterizerInterface;
}
namespace Tegra {
/**
@ -43,7 +47,7 @@ struct VirtualMemoryArea {
class MemoryManager final {
public:
MemoryManager();
MemoryManager(VideoCore::RasterizerInterface& rasterizer);
GPUVAddr AllocateSpace(u64 size, u64 align);
GPUVAddr AllocateSpace(GPUVAddr addr, u64 size, u64 align);
@ -144,6 +148,7 @@ private:
Common::PageTable page_table{page_bits};
VMAMap vma_map;
VideoCore::RasterizerInterface& rasterizer;
};
} // namespace Tegra