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JIT optimizations and refactoring (#675)

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* CPU/Recompiler: Use rel32 call where possible for no-args

* JitCodeBuffer: Support using preallocated buffer

* CPU/Recompiler/AArch64: Use bl instead of blr for short branches

* CPU/CodeCache: Allocate recompiler buffer in program space

This means we don't need 64-bit moves for every call out of the
recompiler.

* GTE: Don't store as u16 and load as u32

* CPU/Recompiler: Add methods to emit global load/stores

* GTE: Convert class to namespace

* CPU/Recompiler: Call GTE functions directly

* Settings: Turn into a global variable

* GPU: Replace local pointers with global

* InterruptController: Turn into a global pointer

* System: Replace local pointers with global

* Timers: Turn into a global instance

* DMA: Turn into a global instance

* SPU: Turn into a global instance

* CDROM: Turn into a global instance

* MDEC: Turn into a global instance

* Pad: Turn into a global instance

* SIO: Turn into a global instance

* CDROM: Move audio FIFO to the heap

* CPU/Recompiler: Drop ASMFunctions

No longer needed since we have code in the same 4GB window.

* CPUCodeCache: Turn class into namespace

* Bus: Local pointer -> global pointers

* CPU: Turn class into namespace

* Bus: Turn into namespace

* GTE: Store registers in CPU state struct

Allows relative addressing on ARM.

* CPU/Recompiler: Align code storage to page size

* CPU/Recompiler: Fix relative branches on A64

* HostInterface: Local references to global

* System: Turn into a namespace, move events out

* Add guard pages

* Android: Fix build
This commit is contained in:
Connor McLaughlin
2020-07-31 17:09:18 +10:00
committed by GitHub
parent 1f9fc6ab74
commit b6f871d2b9
88 changed files with 4993 additions and 5045 deletions
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84
src/core/cpu_recompiler_thunks.h
View File

@ -1,67 +1,51 @@
#pragma once
#include "cpu_code_cache.h"
#include "cpu_types.h"
class JitCodeBuffer;
namespace CPU {
struct CodeBlockInstruction;
class Core;
namespace Recompiler::Thunks {
namespace Recompiler {
class Thunks
union RaiseExceptionInfo
{
public:
union RaiseExceptionInfo
u32 bits;
struct
{
u32 bits;
struct
{
u8 excode;
bool BD;
u8 CE;
u8 unused;
};
u8 excode;
bool BD;
u8 CE;
u8 unused;
};
static u32 MakeRaiseExceptionInfo(Exception excode, const CodeBlockInstruction& cbi);
//////////////////////////////////////////////////////////////////////////
// Trampolines for calling back from the JIT
// Needed because we can't cast member functions to void*...
// TODO: Abuse carry flag or something else for exception
//////////////////////////////////////////////////////////////////////////
static u64 ReadMemoryByte(Core* cpu, u32 pc, u32 address);
static u64 ReadMemoryHalfWord(Core* cpu, u32 pc, u32 address);
static u64 ReadMemoryWord(Core* cpu, u32 pc, u32 address);
static bool WriteMemoryByte(Core* cpu, u32 pc, u32 address, u8 value);
static bool WriteMemoryHalfWord(Core* cpu, u32 pc, u32 address, u16 value);
static bool WriteMemoryWord(Core* cpu, u32 pc, u32 address, u32 value);
static bool InterpretInstruction(Core* cpu);
static void UpdateLoadDelay(Core* cpu);
static void RaiseException(Core* cpu, u32 epc, u32 ri_bits);
static void RaiseAddressException(Core* cpu, u32 address, bool store, bool branch);
static void ExecuteGTEInstruction(Core* cpu, u32 instruction_bits);
static u32 ReadGTERegister(Core* cpu, u32 reg);
static void WriteGTERegister(Core* cpu, u32 reg, u32 value);
};
class ASMFunctions
ALWAYS_INLINE u32 MakeRaiseExceptionInfo(Exception excode, const CodeBlockInstruction& cbi)
{
public:
bool (*read_memory_byte)(u32 address, u8* value);
bool (*read_memory_word)(u32 address, u16* value);
bool (*read_memory_dword)(u32 address, u32* value);
void (*write_memory_byte)(u32 address, u8 value);
void (*write_memory_word)(u32 address, u16 value);
void (*write_memory_dword)(u32 address, u32 value);
RaiseExceptionInfo ri = {};
ri.excode = static_cast<u8>(excode);
ri.BD = cbi.is_branch_delay_slot;
ri.CE = cbi.instruction.cop.cop_n;
return ri.bits;
}
void Generate(JitCodeBuffer* code_buffer);
};
//////////////////////////////////////////////////////////////////////////
// Trampolines for calling back from the JIT
// Needed because we can't cast member functions to void*...
// TODO: Abuse carry flag or something else for exception
//////////////////////////////////////////////////////////////////////////
bool InterpretInstruction();
void RaiseException(u32 epc, u32 ri_bits);
void RaiseAddressException(u32 address, bool store, bool branch);
} // namespace Recompiler
// Memory access functions for the JIT - MSB is set on exception.
u64 ReadMemoryByte(u32 pc, u32 address);
u64 ReadMemoryHalfWord(u32 pc, u32 address);
u64 ReadMemoryWord(u32 pc, u32 address);
bool WriteMemoryByte(u32 pc, u32 address, u8 value);
bool WriteMemoryHalfWord(u32 pc, u32 address, u16 value);
bool WriteMemoryWord(u32 pc, u32 address, u32 value);
} // namespace Recompiler::Thunks
} // namespace CPU