yuzu/src/core/arm/exclusive_monitor.h
merry 16784e5bb3 dynarmic: Inline exclusive memory accesses
Inlines implementation of exclusive instructions into JITted code,
improving performance of applications relying heavily on these
instructions.

We also fastmem these instructions for additional speed, with
support for appropriate recompilation on fastmem failure.

An unsafe optimization to disable the intercore global_monitor is also
provided, should one wish to rely solely on cmpxchg semantics for
safety.

See also: merryhime/dynarmic#664
2022-02-27 19:40:05 +00:00

39 lines
1.3 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "common/common_types.h"
namespace Core::Memory {
class Memory;
}
namespace Core {
class ExclusiveMonitor {
public:
virtual ~ExclusiveMonitor();
virtual u8 ExclusiveRead8(std::size_t core_index, VAddr addr) = 0;
virtual u16 ExclusiveRead16(std::size_t core_index, VAddr addr) = 0;
virtual u32 ExclusiveRead32(std::size_t core_index, VAddr addr) = 0;
virtual u64 ExclusiveRead64(std::size_t core_index, VAddr addr) = 0;
virtual u128 ExclusiveRead128(std::size_t core_index, VAddr addr) = 0;
virtual void ClearExclusive(std::size_t core_index) = 0;
virtual bool ExclusiveWrite8(std::size_t core_index, VAddr vaddr, u8 value) = 0;
virtual bool ExclusiveWrite16(std::size_t core_index, VAddr vaddr, u16 value) = 0;
virtual bool ExclusiveWrite32(std::size_t core_index, VAddr vaddr, u32 value) = 0;
virtual bool ExclusiveWrite64(std::size_t core_index, VAddr vaddr, u64 value) = 0;
virtual bool ExclusiveWrite128(std::size_t core_index, VAddr vaddr, u128 value) = 0;
};
std::unique_ptr<Core::ExclusiveMonitor> MakeExclusiveMonitor(Memory::Memory& memory,
std::size_t num_cores);
} // namespace Core