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improve host and device shared buffer cache modes

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This commit is contained in:
Samuliak 2024-11-04 16:03:34 +01:00
parent fbea328b9b
commit a00d409ab7
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3 changed files with 23 additions and 9 deletions
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23
src/Cafe/HW/Latte/Renderer/Metal/MetalMemoryManager.cpp
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@ -4,6 +4,7 @@
#include "Cemu/Logging/CemuLogging.h"
#include "Common/precompiled.h"
#include "HW/MMU/MMU.h"
MetalMemoryManager::~MetalMemoryManager()
{
@ -30,15 +31,23 @@ void MetalMemoryManager::InitBufferCache(size_t size)
m_bufferCacheType = g_current_game_profile->GetBufferCacheType();
// First, try to import the host memory as a buffer
if (m_bufferCacheType == BufferCacheType::Host && m_mtlr->IsAppleGPU())
if (m_bufferCacheType == BufferCacheType::Host)
{
m_importedMemBaseAddress = 0x10000000;
m_hostAllocationSize = 0x40000000ull; // TODO: get size of allocation
m_bufferCache = m_mtlr->GetDevice()->newBuffer(memory_getPointerFromVirtualOffset(m_importedMemBaseAddress), m_hostAllocationSize, MTL::ResourceStorageModeShared, nullptr);
if (!m_bufferCache)
if (m_mtlr->HasUnifiedMemory())
{
cemuLog_logDebug(LogType::Force, "Failed to import host memory as a buffer");
m_bufferCacheType = BufferCacheType::DevicePrivate;
m_importedMemBaseAddress = mmuRange_MEM2.getBase();
m_hostAllocationSize = mmuRange_MEM2.getSize();
m_bufferCache = m_mtlr->GetDevice()->newBuffer(memory_getPointerFromVirtualOffset(m_importedMemBaseAddress), m_hostAllocationSize, MTL::ResourceStorageModeShared, nullptr);
if (!m_bufferCache)
{
cemuLog_logDebug(LogType::Force, "Failed to import host memory as a buffer, using device shared mode instead");
m_bufferCacheType = BufferCacheType::DeviceShared;
}
}
else
{
cemuLog_logDebug(LogType::Force, "Host buffer cache mode is only available on unified memory systems, using device shared mode instead");
m_bufferCacheType = BufferCacheType::DeviceShared;
}
}

5
src/Cafe/HW/Latte/Renderer/Metal/MetalMemoryManager.h
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@ -43,6 +43,11 @@ public:
return (m_bufferCacheType == BufferCacheType::Host);
}
bool NeedsReducedLatency() const
{
return (m_bufferCacheType == BufferCacheType::DeviceShared || m_bufferCacheType == BufferCacheType::Host);
}
MPTR GetImportedMemBaseAddress() const
{
return m_importedMemBaseAddress;

4
src/Cafe/HW/Latte/Renderer/Metal/MetalRenderer.cpp
View File

@ -88,8 +88,8 @@ MetalRenderer::MetalRenderer()
m_depthStencilCache = new MetalDepthStencilCache(this);
m_samplerCache = new MetalSamplerCache(this);
// Lower the commit treshold when host memory is used for cache to reduce latency
if (m_memoryManager->UseHostMemoryForCache())
// Lower the commit treshold when buffer cache needs reduced latency
if (m_memoryManager->NeedsReducedLatency())
m_defaultCommitTreshlod = 64;
else
m_defaultCommitTreshlod = 196;