PPU LLVM: multithread compilation

This commit is contained in:
Nekotekina 2017-06-24 18:36:49 +03:00
parent ef21e2253f
commit 6561ddae41
9 changed files with 285 additions and 190 deletions

View file

@ -49,6 +49,7 @@
#include "Modules/cellMsgDialog.h"
#endif
#include <thread>
#include <cfenv>
#include "Utilities/GSL.h"
@ -102,7 +103,7 @@ const ppu_decoder<ppu_interpreter_fast> s_ppu_interpreter_fast;
extern void ppu_initialize();
extern void ppu_initialize(const ppu_module& info);
static void ppu_initialize2(const ppu_module& info);
static void ppu_initialize2(class jit_compiler& jit, const ppu_module& module_part, const std::string& cache_path, const std::string& obj_name);
extern void ppu_execute_syscall(ppu_thread& ppu, u64 code);
// Get pointer to executable cache
@ -1059,11 +1060,8 @@ extern void ppu_initialize(const ppu_module& info)
return;
}
#ifdef LLVM_AVAILABLE
using namespace llvm;
// Initialize JIT compiler
if (!fxm::check<jit_compiler>())
// Link table
static const std::unordered_map<std::string, u64> s_link_table = []()
{
std::unordered_map<std::string, u64> link_table
{
@ -1098,15 +1096,32 @@ extern void ppu_initialize(const ppu_module& info)
}
}
fxm::make<jit_compiler>(std::move(link_table), g_cfg.core.llvm_cpu);
return link_table;
}();
#ifdef LLVM_AVAILABLE
// Initialize compiler
jit_compiler jit(s_link_table, g_cfg.core.llvm_cpu);
// Compiler mutex
semaphore<> jmutex;
// Initialize semaphore with the max number of threads
semaphore<INT32_MAX> jcores(std::thread::hardware_concurrency());
if (!jcores.get())
{
// Min value 1
jcores.post();
}
#endif
// Worker threads
std::vector<std::thread> jthreads;
// Split module into fragments <= 1 MiB
std::size_t fpos = 0;
ppu_module part;
part.funcs.reserve(65536);
while (fpos < info.funcs.size())
{
@ -1115,12 +1130,13 @@ extern void ppu_initialize(const ppu_module& info)
std::size_t bsize = 0;
part.funcs.clear();
part.funcs.reserve(16000);
while (fpos < info.funcs.size())
{
auto& func = info.funcs[fpos];
if (bsize + func.size > 1024 * 1024 && bsize)
if (bsize + func.size > 256 * 1024 && bsize)
{
break;
}
@ -1158,13 +1174,90 @@ extern void ppu_initialize(const ppu_module& info)
part.name.append("+0");
}
ppu_initialize2(part);
// Compute module hash
std::string obj_name;
{
sha1_context ctx;
u8 output[20];
sha1_starts(&ctx);
for (const auto& func : part.funcs)
{
if (func.size == 0)
{
continue;
}
const be_t<u32> addr = func.addr;
const be_t<u32> size = func.size;
sha1_update(&ctx, reinterpret_cast<const u8*>(&addr), sizeof(addr));
sha1_update(&ctx, reinterpret_cast<const u8*>(&size), sizeof(size));
for (const auto& block : func.blocks)
{
if (block.second == 0)
{
continue;
}
sha1_update(&ctx, vm::ps3::_ptr<const u8>(block.first), block.second);
}
sha1_update(&ctx, vm::ps3::_ptr<const u8>(func.addr), func.size);
}
sha1_finish(&ctx, output);
// Version, module name and hash: vX-liblv2.sprx-0123456789ABCDEF.obj
fmt::append(obj_name, "v1%s-%016X-%s.obj", part.name, reinterpret_cast<be_t<u64>&>(output), jit.cpu());
}
if (Emu.IsStopped())
{
break;
}
// Check object file
if (fs::is_file(Emu.GetCachePath() + obj_name))
{
semaphore_lock lock(jmutex);
ppu_initialize2(jit, part, Emu.GetCachePath(), obj_name);
continue;
}
// Create worker thread for compilation
jthreads.emplace_back([&jit, &jmutex, &jcores, obj_name = obj_name, part = std::move(part)]()
{
// Set low priority
thread_ctrl::set_native_priority(-1);
// Allocate "core"
{
semaphore_lock jlock(jcores);
if (Emu.IsStopped())
{
return;
}
// Use another JIT instance
jit_compiler jit2({}, g_cfg.core.llvm_cpu);
ppu_initialize2(jit2, part, Emu.GetCachePath(), obj_name);
}
// Proceed with original JIT instance
semaphore_lock lock(jmutex);
ppu_initialize2(jit, part, Emu.GetCachePath(), obj_name);
});
}
#ifdef LLVM_AVAILABLE
const auto jit = fxm::check_unlocked<jit_compiler>();
// Join worker threads
for (auto& thread : jthreads)
{
thread.join();
}
jit->fin(Emu.GetCachePath());
jit.fin();
// Get and install function addresses
for (const auto& func : info.funcs)
@ -1175,74 +1268,27 @@ extern void ppu_initialize(const ppu_module& info)
{
if (block.second)
{
ppu_ref(block.first) = ::narrow<u32>(jit->get(fmt::format("__0x%x", block.first)));
ppu_ref(block.first) = ::narrow<u32>(jit.get(fmt::format("__0x%x", block.first)));
}
}
}
#endif
}
static void ppu_initialize2(const ppu_module& module_part)
static void ppu_initialize2(jit_compiler& jit, const ppu_module& module_part, const std::string& cache_path, const std::string& obj_name)
{
if (Emu.IsStopped())
{
return;
}
// Compute module hash
std::string obj_name;
{
sha1_context ctx;
u8 output[20];
sha1_starts(&ctx);
for (const auto& func : module_part.funcs)
{
if (func.size == 0)
{
continue;
}
const be_t<u32> addr = func.addr;
const be_t<u32> size = func.size;
sha1_update(&ctx, reinterpret_cast<const u8*>(&addr), sizeof(addr));
sha1_update(&ctx, reinterpret_cast<const u8*>(&size), sizeof(size));
for (const auto& block : func.blocks)
{
if (block.second == 0)
{
continue;
}
sha1_update(&ctx, vm::ps3::_ptr<const u8>(block.first), block.second);
}
sha1_update(&ctx, vm::ps3::_ptr<const u8>(func.addr), func.size);
}
sha1_finish(&ctx, output);
// Version, module name and hash: vX-liblv2.sprx-0123456789ABCDEF.obj
fmt::append(obj_name, "b1%s-%016X.obj", module_part.name, reinterpret_cast<be_t<u64>&>(output));
}
#ifdef LLVM_AVAILABLE
using namespace llvm;
const auto jit = fxm::get<jit_compiler>();
// Create LLVM module
std::unique_ptr<Module> module = std::make_unique<Module>(obj_name, g_llvm_ctx);
std::unique_ptr<Module> module = std::make_unique<Module>(obj_name, jit.get_context());
// Initialize target
module->setTargetTriple(Triple::normalize(sys::getProcessTriple()));
// Initialize translator
std::unique_ptr<PPUTranslator> translator = std::make_unique<PPUTranslator>(g_llvm_ctx, module.get(), 0);
std::unique_ptr<PPUTranslator> translator = std::make_unique<PPUTranslator>(jit.get_context(), module.get(), 0);
// Define some types
const auto _void = Type::getVoidTy(g_llvm_ctx);
const auto _void = Type::getVoidTy(jit.get_context());
const auto _func = FunctionType::get(_void, {translator->GetContextType()->getPointerTo()}, false);
// Initialize function list
@ -1258,7 +1304,7 @@ static void ppu_initialize2(const ppu_module& module_part)
std::shared_ptr<MsgDialogBase> dlg;
// Check cached file
if (!fs::is_file(Emu.GetCachePath() + obj_name))
if (!fs::is_file(cache_path + obj_name))
{
legacy::FunctionPassManager pm(module.get());
@ -1404,7 +1450,7 @@ static void ppu_initialize2(const ppu_module& module_part)
if (g_cfg.core.llvm_logs)
{
out << *module; // print IR
fs::file(Emu.GetCachePath() + obj_name + ".log", fs::rewrite).write(out.str());
fs::file(cache_path + obj_name + ".log", fs::rewrite).write(out.str());
result.clear();
}
@ -1418,11 +1464,7 @@ static void ppu_initialize2(const ppu_module& module_part)
LOG_NOTICE(PPU, "LLVM: %zu functions generated", module->getFunctionList().size());
}
// Access JIT compiler
if (const auto jit = fxm::check_unlocked<jit_compiler>())
{
// Load or compile module
jit->add(std::move(module), Emu.GetCachePath());
}
#endif
// Load or compile module
jit.add(std::move(module), cache_path);
#endif // LLVM_AVAILABLE
}