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MemoryManager: use fastmem directly.

This commit is contained in:
Fernando Sahmkow 2023-01-05 06:06:33 -05:00
parent 6c7eb81f7d
commit af5ecb0b15
3 changed files with 34 additions and 11 deletions
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2
src/core/memory.cpp
View File

@ -436,7 +436,7 @@ struct Memory::Impl {
}
if (Settings::IsFastmemEnabled()) {
const bool is_read_enable = Settings::IsGPULevelHigh() || !cached;
const bool is_read_enable = !Settings::IsGPULevelExtreme() || !cached;
system.DeviceMemory().buffer.Protect(vaddr, size, is_read_enable, !cached);
}

40
src/video_core/memory_manager.cpp
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@ -6,6 +6,7 @@
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "core/core.h"
#include "core/device_memory.h"
#include "core/hle/kernel/k_page_table.h"
@ -45,6 +46,11 @@ MemoryManager::MemoryManager(Core::System& system_, u64 address_space_bits_, u64
big_page_table_cpu.resize(big_page_table_size);
big_page_continous.resize(big_page_table_size / continous_bits, 0);
entries.resize(page_table_size / 32, 0);
if (!Settings::IsGPULevelExtreme()) {
fastmem_arena = system.DeviceMemory().buffer.VirtualBasePointer();
} else {
fastmem_arena = nullptr;
}
}
MemoryManager::~MemoryManager() = default;
@ -354,7 +360,7 @@ inline void MemoryManager::MemoryOperation(GPUVAddr gpu_src_addr, std::size_t si
}
}
template <bool is_safe>
template <bool is_safe, bool use_fastmem>
void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
[[maybe_unused]] VideoCommon::CacheType which) const {
auto set_to_zero = [&]([[maybe_unused]] std::size_t page_index,
@ -368,8 +374,12 @@ void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std:
if constexpr (is_safe) {
rasterizer->FlushRegion(cpu_addr_base, copy_amount, which);
}
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
if constexpr (use_fastmem) {
std::memcpy(dest_buffer, &fastmem_arena[cpu_addr_base], copy_amount);
} else {
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
}
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
};
auto mapped_big = [&](std::size_t page_index, std::size_t offset, std::size_t copy_amount) {
@ -378,11 +388,15 @@ void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std:
if constexpr (is_safe) {
rasterizer->FlushRegion(cpu_addr_base, copy_amount, which);
}
if (!IsBigPageContinous(page_index)) [[unlikely]] {
memory.ReadBlockUnsafe(cpu_addr_base, dest_buffer, copy_amount);
if constexpr (use_fastmem) {
std::memcpy(dest_buffer, &fastmem_arena[cpu_addr_base], copy_amount);
} else {
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
if (!IsBigPageContinous(page_index)) [[unlikely]] {
memory.ReadBlockUnsafe(cpu_addr_base, dest_buffer, copy_amount);
} else {
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
}
}
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
};
@ -396,12 +410,20 @@ void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std:
void MemoryManager::ReadBlock(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
VideoCommon::CacheType which) const {
ReadBlockImpl<true>(gpu_src_addr, dest_buffer, size, which);
if (fastmem_arena) [[likely]] {
ReadBlockImpl<true, true>(gpu_src_addr, dest_buffer, size, which);
return;
}
ReadBlockImpl<true, false>(gpu_src_addr, dest_buffer, size, which);
}
void MemoryManager::ReadBlockUnsafe(GPUVAddr gpu_src_addr, void* dest_buffer,
const std::size_t size) const {
ReadBlockImpl<false>(gpu_src_addr, dest_buffer, size, VideoCommon::CacheType::None);
if (fastmem_arena) [[likely]] {
ReadBlockImpl<false, true>(gpu_src_addr, dest_buffer, size, VideoCommon::CacheType::None);
return;
}
ReadBlockImpl<false, false>(gpu_src_addr, dest_buffer, size, VideoCommon::CacheType::None);
}
template <bool is_safe>

3
src/video_core/memory_manager.h
View File

@ -141,7 +141,7 @@ private:
inline void MemoryOperation(GPUVAddr gpu_src_addr, std::size_t size, FuncMapped&& func_mapped,
FuncReserved&& func_reserved, FuncUnmapped&& func_unmapped) const;
template <bool is_safe>
template <bool is_safe, bool use_fastmem>
void ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
VideoCommon::CacheType which) const;
@ -215,6 +215,7 @@ private:
std::vector<u64> big_page_continous;
std::vector<std::pair<VAddr, std::size_t>> page_stash{};
u8* fastmem_arena{};
constexpr static size_t continous_bits = 64;