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System: Refactor main loop

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Reduces JIT exits.
Improves runahead performance.
This commit is contained in:
Stenzek
2023-08-15 23:12:21 +10:00
parent 4ebd34fcb3
commit 5b980dafa5
43 changed files with 1343 additions and 923 deletions
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153
src/core/cpu_code_cache.cpp
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@ -8,6 +8,7 @@
#include "cpu_core.h"
#include "cpu_core_private.h"
#include "cpu_disasm.h"
#include "cpu_recompiler_types.h"
#include "settings.h"
#include "system.h"
#include "timing_event.h"
@ -17,6 +18,8 @@ Log_SetChannel(CPU::CodeCache);
#include "cpu_recompiler_code_generator.h"
#endif
#include <zlib.h>
namespace CPU::CodeCache {
static constexpr bool USE_BLOCK_LINKING = true;
@ -50,6 +53,10 @@ alignas(Recompiler::CODE_STORAGE_ALIGNMENT) static u8
#endif
static JitCodeBuffer s_code_buffer;
#endif
#ifdef WITH_RECOMPILER
static FastMapTable s_fast_map[FAST_MAP_TABLE_COUNT];
static std::unique_ptr<CodeBlock::HostCodePointer[]> s_fast_map_pointers;
@ -253,12 +260,19 @@ void Initialize()
{
Panic("Failed to initialize code space");
}
}
#endif
AllocateFastMap();
#ifdef WITH_RECOMPILER
if (g_settings.IsUsingRecompiler())
{
if (g_settings.IsUsingFastmem() && !InitializeFastmem())
Panic("Failed to initialize fastmem");
AllocateFastMap();
CompileDispatcher();
ResetFastMap();
}
@ -293,22 +307,13 @@ void Shutdown()
}
template<PGXPMode pgxp_mode>
static void ExecuteImpl()
[[noreturn]] static void ExecuteImpl()
{
CodeBlockKey next_block_key;
g_using_interpreter = false;
g_state.frame_done = false;
while (!g_state.frame_done)
for (;;)
{
if (HasPendingInterrupt())
{
SafeReadInstruction(g_state.regs.pc, &g_state.next_instruction.bits);
DispatchInterrupt();
}
TimingEvents::UpdateCPUDowncount();
TimingEvents::RunEvents();
next_block_key = GetNextBlockKey();
while (g_state.pending_ticks < g_state.downcount)
@ -384,27 +389,10 @@ static void ExecuteImpl()
}
}
}
TimingEvents::RunEvents();
}
// in case we switch to interpreter...
g_state.regs.npc = g_state.regs.pc;
}
void Execute()
{
if (g_settings.gpu_pgxp_enable)
{
if (g_settings.gpu_pgxp_cpu)
ExecuteImpl<PGXPMode::CPU>();
else
ExecuteImpl<PGXPMode::Memory>();
}
else
{
ExecuteImpl<PGXPMode::Disabled>();
}
g_state.npc = g_state.pc;
}
#ifdef WITH_RECOMPILER
@ -430,21 +418,15 @@ FastMapTable* GetFastMapPointer()
return s_fast_map;
}
void ExecuteRecompiler()
[[noreturn]] static void ExecuteRecompiler()
{
g_using_interpreter = false;
g_state.frame_done = false;
#if 0
while (!g_state.frame_done)
for (;;)
{
if (HasPendingInterrupt())
{
SafeReadInstruction(g_state.regs.pc, &g_state.next_instruction.bits);
DispatchInterrupt();
}
TimingEvents::UpdateCPUDowncount();
TimingEvents::RunEvents();
while (g_state.pending_ticks < g_state.downcount)
{
@ -452,18 +434,50 @@ void ExecuteRecompiler()
LogCurrentState();
#endif
const u32 pc = g_state.regs.pc;
const u32 pc = g_state.pc;
s_single_block_asm_dispatcher(s_fast_map[pc >> 16][pc >> 2]);
}
TimingEvents::RunEvents();
}
#else
s_asm_dispatcher();
#endif
}
// in case we switch to interpreter...
g_state.regs.npc = g_state.regs.pc;
#endif
[[noreturn]] void Execute()
{
switch (g_settings.cpu_execution_mode)
{
#ifdef WITH_RECOMPILER
case CPUExecutionMode::Recompiler:
ExecuteRecompiler();
break;
#endif
default:
{
if (g_settings.gpu_pgxp_enable)
{
if (g_settings.gpu_pgxp_cpu)
ExecuteImpl<PGXPMode::CPU>();
else
ExecuteImpl<PGXPMode::Memory>();
}
else
{
ExecuteImpl<PGXPMode::Disabled>();
}
}
break;
}
}
#if defined(WITH_RECOMPILER)
JitCodeBuffer& GetCodeBuffer()
{
return s_code_buffer;
}
#endif
@ -473,13 +487,14 @@ void Reinitialize()
ClearState();
#ifdef WITH_RECOMPILER
ShutdownFastmem();
#endif
#if defined(WITH_RECOMPILER)
s_code_buffer.Destroy();
if (g_settings.IsUsingRecompiler())
{
#ifdef USE_STATIC_CODE_BUFFER
if (!s_code_buffer.Initialize(s_code_storage, sizeof(s_code_storage), RECOMPILER_FAR_CODE_CACHE_SIZE,
RECOMPILER_GUARD_SIZE))
@ -489,7 +504,12 @@ void Reinitialize()
{
Panic("Failed to initialize code space");
}
}
#endif
#ifdef WITH_RECOMPILER
if (g_settings.IsUsingRecompiler())
{
if (g_settings.IsUsingFastmem() && !InitializeFastmem())
Panic("Failed to initialize fastmem");
@ -509,25 +529,40 @@ void Flush()
#endif
}
#ifndef _MSC_VER
void __debugbreak() {}
#endif
void LogCurrentState()
{
#if 0
if ((TimingEvents::GetGlobalTickCounter() + GetPendingTicks()) == 2546728915)
__debugbreak();
#endif
#if 0
if ((TimingEvents::GetGlobalTickCounter() + GetPendingTicks()) < 2546729174)
return;
#endif
const auto& regs = g_state.regs;
WriteToExecutionLog("tick=%u pc=%08X zero=%08X at=%08X v0=%08X v1=%08X a0=%08X a1=%08X a2=%08X a3=%08X t0=%08X "
"t1=%08X t2=%08X t3=%08X t4=%08X t5=%08X t6=%08X t7=%08X s0=%08X s1=%08X s2=%08X s3=%08X s4=%08X "
"s5=%08X s6=%08X s7=%08X t8=%08X t9=%08X k0=%08X k1=%08X gp=%08X sp=%08X fp=%08X ra=%08X ldr=%s "
"ldv=%08X\n",
TimingEvents::GetGlobalTickCounter() + GetPendingTicks(), regs.pc, regs.zero, regs.at, regs.v0,
regs.v1, regs.a0, regs.a1, regs.a2, regs.a3, regs.t0, regs.t1, regs.t2, regs.t3, regs.t4, regs.t5,
regs.t6, regs.t7, regs.s0, regs.s1, regs.s2, regs.s3, regs.s4, regs.s5, regs.s6, regs.s7, regs.t8,
regs.t9, regs.k0, regs.k1, regs.gp, regs.sp, regs.fp, regs.ra,
(g_state.next_load_delay_reg == Reg::count) ? "NONE" : GetRegName(g_state.next_load_delay_reg),
(g_state.next_load_delay_reg == Reg::count) ? 0 : g_state.next_load_delay_value);
WriteToExecutionLog(
"tick=%u dc=%u/%u pc=%08X at=%08X v0=%08X v1=%08X a0=%08X a1=%08X a2=%08X a3=%08X t0=%08X "
"t1=%08X t2=%08X t3=%08X t4=%08X t5=%08X t6=%08X t7=%08X s0=%08X s1=%08X s2=%08X s3=%08X s4=%08X "
"s5=%08X s6=%08X s7=%08X t8=%08X t9=%08X k0=%08X k1=%08X gp=%08X sp=%08X fp=%08X ra=%08X ldr=%s "
"ldv=%08X cause=%08X sr=%08X gte=%08X\n",
TimingEvents::GetGlobalTickCounter() + GetPendingTicks(), g_state.pending_ticks, g_state.downcount, g_state.pc,
regs.at, regs.v0, regs.v1, regs.a0, regs.a1, regs.a2, regs.a3, regs.t0, regs.t1, regs.t2, regs.t3, regs.t4, regs.t5,
regs.t6, regs.t7, regs.s0, regs.s1, regs.s2, regs.s3, regs.s4, regs.s5, regs.s6, regs.s7, regs.t8, regs.t9, regs.k0,
regs.k1, regs.gp, regs.sp, regs.fp, regs.ra,
(g_state.next_load_delay_reg == Reg::count) ? "NONE" : GetRegName(g_state.next_load_delay_reg),
(g_state.next_load_delay_reg == Reg::count) ? 0 : g_state.next_load_delay_value, g_state.cop0_regs.cause.bits,
g_state.cop0_regs.sr.bits, static_cast<u32>(crc32(0, (const Bytef*)&g_state.gte_regs, sizeof(g_state.gte_regs))));
}
CodeBlockKey GetNextBlockKey()
{
CodeBlockKey key = {};
key.SetPC(g_state.regs.pc);
key.SetPC(g_state.pc);
key.user_mode = InUserMode();
return key;
}
@ -836,7 +871,7 @@ void FastCompileBlockFunction()
void InvalidCodeFunction()
{
Log_ErrorPrintf("Trying to execute invalid code at 0x%08X", g_state.regs.pc);
Log_ErrorPrintf("Trying to execute invalid code at 0x%08X", g_state.pc);
if (g_settings.gpu_pgxp_enable)
{
if (g_settings.gpu_pgxp_cpu)
@ -1249,7 +1284,7 @@ void CPU::Recompiler::Thunks::ResolveBranch(CodeBlock* block, void* host_pc, voi
void CPU::Recompiler::Thunks::LogPC(u32 pc)
{
#if 0
#if 1
CPU::CodeCache::LogCurrentState();
#endif
#if 0