mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-11-21 18:22:33 +01:00
Fix thread pool entry point and get_cycles()
Fix possible race between thread handle availability. Don't treat zero thread as invalid one. Now entry point is full is assembly. Attempt to fix #9282 Also fix some TLS.
This commit is contained in:
Nekotekina
parent
60cff6f3d4
commit
71f1021648
@ -88,6 +88,7 @@ thread_local u64 g_tls_fault_rsx = 0;
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thread_local u64 g_tls_fault_spu = 0;
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thread_local u64 g_tls_wait_time = 0;
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thread_local u64 g_tls_wait_fail = 0;
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thread_local bool g_tls_access_violation_recovered = false;
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extern thread_local std::string(*g_tls_log_prefix)();
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template <>
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@ -1367,13 +1368,11 @@ bool handle_access_violation(u32 addr, bool is_writing, x64_context* context) no
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return true;
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}
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thread_local bool access_violation_recovered = false;
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// Hack: allocate memory in case the emulator is stopping
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const auto hack_alloc = [&]()
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{
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// If failed the value remains true and std::terminate should be called
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access_violation_recovered = true;
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g_tls_access_violation_recovered = true;
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const auto area = vm::reserve_map(vm::any, addr & -0x10000, 0x10000);
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@ -1525,7 +1524,7 @@ bool handle_access_violation(u32 addr, bool is_writing, x64_context* context) no
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if (cpu->id_type() != 1)
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{
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if (!access_violation_recovered)
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if (!g_tls_access_violation_recovered)
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{
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vm_log.notice("\n%s", cpu->dump_all());
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vm_log.error("Access violation %s location 0x%x (%s) [type=u%u]", is_writing ? "writing" : "reading", addr, (is_writing && vm::check_addr(addr)) ? "read-only memory" : "unmapped memory", d_size * 8);
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@ -1556,14 +1555,14 @@ bool handle_access_violation(u32 addr, bool is_writing, x64_context* context) no
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Emu.Pause();
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if (cpu && !access_violation_recovered)
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if (cpu && !g_tls_access_violation_recovered)
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{
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vm_log.notice("\n%s", cpu->dump_all());
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}
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// Note: a thread may access violate more than once after hack_alloc recovery
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// Do not log any further access violations in this case.
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if (!access_violation_recovered)
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if (!g_tls_access_violation_recovered)
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{
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vm_log.fatal("Access violation %s location 0x%x (%s) [type=u%u]", is_writing ? "writing" : "reading", addr, (is_writing && vm::check_addr(addr)) ? "read-only memory" : "unmapped memory", d_size * 8);
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}
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@ -1850,7 +1849,7 @@ static atomic_t<u128, 64> s_thread_bits{0};
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static atomic_t<thread_base**> s_thread_pool[128]{};
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void thread_base::start(native_entry entry, void(*trampoline)())
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void thread_base::start(native_entry entry)
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{
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for (u128 bits = s_thread_bits.load(); bits; bits &= bits - 1)
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{
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@ -1869,16 +1868,13 @@ void thread_base::start(native_entry entry, void(*trampoline)())
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}
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// Send "this" and entry point
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m_thread = reinterpret_cast<u64>(trampoline);
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const u64 entry_val = reinterpret_cast<u64>(entry);
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m_thread = entry_val;
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atomic_storage<thread_base*>::release(*tls, this);
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s_thread_pool[pos].notify_all();
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// Wait for actual "m_thread" in return
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while (m_thread == reinterpret_cast<u64>(trampoline))
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{
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busy_wait(300);
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}
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m_thread.wait(entry_val);
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return;
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}
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@ -1892,6 +1888,10 @@ void thread_base::start(native_entry entry, void(*trampoline)())
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void thread_base::initialize(void (*error_cb)())
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{
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#ifndef _WIN32
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m_thread.release(reinterpret_cast<u64>(pthread_self()));
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#endif
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// Initialize TLS variables
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thread_ctrl::g_tls_this_thread = this;
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@ -2012,9 +2012,6 @@ u64 thread_base::finalize(thread_state result_state) noexcept
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atomic_wait_engine::set_wait_callback(nullptr);
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const u64 _self = m_thread;
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m_thread.release(0);
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// Return true if need to delete thread object (no)
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const bool ok = 0 == (3 & ~m_sync.fetch_op([&](u64& v)
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{
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@ -2026,48 +2023,55 @@ u64 thread_base::finalize(thread_state result_state) noexcept
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m_sync.notify_all(2);
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// No detached thread supported atm
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return _self;
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return m_thread;
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}
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void thread_base::finalize(u64 _self) noexcept
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u64 thread_base::finalize(u64 _self) noexcept
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{
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g_tls_fault_all = 0;
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g_tls_fault_rsx = 0;
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g_tls_fault_spu = 0;
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g_tls_wait_time = 0;
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g_tls_wait_fail = 0;
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g_tls_access_violation_recovered = false;
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atomic_wait_engine::set_wait_callback(nullptr);
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g_tls_log_prefix = []() -> std::string { return {}; };
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thread_ctrl::g_tls_this_thread = nullptr;
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if (!_self)
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{
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return;
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return 0;
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}
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// Try to add self to thread pool
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const auto [bits, ok] = s_thread_bits.fetch_op([](u128& bits)
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{
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if (~bits) [[likely]]
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{
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// Set lowest clear bit
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bits |= bits + 1;
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return true;
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}
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return false;
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});
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if (!ok)
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{
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#ifdef _WIN32
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_endthread();
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#else
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pthread_detach(reinterpret_cast<pthread_t>(_self));
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pthread_exit(0);
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#endif
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return;
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}
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set_name("..pool");
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// Obtain id from atomic op
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const u32 pos = utils::ctz128(~bits);
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u32 pos = -1;
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while (true)
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{
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const auto [bits, ok] = s_thread_bits.fetch_op([](u128& bits)
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{
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if (~bits) [[likely]]
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{
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// Set lowest clear bit
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bits |= bits + 1;
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return true;
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}
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return false;
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});
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if (ok) [[likely]]
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{
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pos = utils::ctz128(~bits);
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break;
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}
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s_thread_bits.wait(bits);
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}
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const auto tls = &thread_ctrl::g_tls_this_thread;
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s_thread_pool[pos] = tls;
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@ -2082,30 +2086,47 @@ void thread_base::finalize(u64 _self) noexcept
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val &= ~(u128(1) << pos);
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});
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s_thread_bits.notify_one();
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// Restore thread id
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const auto _this = atomic_storage<thread_base*>::load(*tls);
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const auto entry = _this->m_thread.exchange(_self);
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verify(HERE), entry != _self;
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_this->m_thread.notify_one();
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// Hack return address to avoid tail call
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#ifdef _MSC_VER
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*static_cast<u64*>(_AddressOfReturnAddress()) = entry;
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#else
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static_cast<u64*>(__builtin_frame_address(0))[1] = entry;
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#endif
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//reinterpret_cast<native_entry>(entry)(_this);
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// Return new entry
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return entry;
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}
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void (*thread_base::make_trampoline(native_entry entry))()
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thread_base::native_entry thread_base::make_trampoline(u64(*entry)(thread_base* _base))
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{
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return build_function_asm<void(*)()>([&](asmjit::X86Assembler& c, auto& args)
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return build_function_asm<native_entry>([&](asmjit::X86Assembler& c, auto& args)
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{
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using namespace asmjit;
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// Revert effect of ret instruction (fix stack alignment)
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c.mov(x86::rax, imm_ptr(entry));
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c.sub(x86::rsp, 8);
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c.jmp(x86::rax);
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Label _ret = c.newLabel();
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c.push(x86::rbp);
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c.sub(x86::rsp, 0x20);
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// Call entry point (TODO: support for detached threads missing?)
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c.call(imm_ptr(entry));
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// Call finalize, return if zero
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c.mov(args[0], x86::rax);
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c.call(imm_ptr<u64(*)(u64)>(finalize));
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c.test(x86::rax, x86::rax);
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c.jz(_ret);
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// Otherwise, call it as an entry point with first arg = new current thread
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c.mov(x86::rbp, x86::rax);
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c.call(imm_ptr(thread_ctrl::get_current));
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c.mov(args[0], x86::rax);
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c.add(x86::rsp, 0x28);
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c.jmp(x86::rbp);
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c.bind(_ret);
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c.add(x86::rsp, 0x28);
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c.ret();
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});
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}
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@ -2193,12 +2214,13 @@ thread_base::thread_base(std::string_view name)
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thread_base::~thread_base()
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{
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if (u64 handle = m_thread.exchange(0))
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// Only cleanup on errored status
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if ((m_sync & 3) == 2)
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{
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#ifdef _WIN32
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CloseHandle(reinterpret_cast<HANDLE>(handle));
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CloseHandle(reinterpret_cast<HANDLE>(m_thread.load()));
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#else
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pthread_detach(reinterpret_cast<pthread_t>(handle));
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pthread_join(reinterpret_cast<pthread_t>(m_thread.load()), nullptr);
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#endif
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}
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}
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@ -2255,13 +2277,15 @@ u64 thread_base::get_native_id() const
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u64 thread_base::get_cycles()
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{
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u64 cycles;
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u64 cycles = 0;
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const u64 handle = m_thread;
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#ifdef _WIN32
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if (QueryThreadCycleTime(reinterpret_cast<HANDLE>(m_thread.load()), &cycles))
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if (QueryThreadCycleTime(reinterpret_cast<HANDLE>(handle), &cycles))
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{
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#elif __APPLE__
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mach_port_name_t port = pthread_mach_thread_np(reinterpret_cast<pthread_t>(m_thread.load()));
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mach_port_name_t port = pthread_mach_thread_np(reinterpret_cast<pthread_t>(handle));
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mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
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thread_basic_info_data_t info;
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kern_return_t ret = thread_info(port, THREAD_BASIC_INFO, reinterpret_cast<thread_info_t>(&info), &count);
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@ -2272,7 +2296,7 @@ u64 thread_base::get_cycles()
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#else
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clockid_t _clock;
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struct timespec thread_time;
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if (!pthread_getcpuclockid(reinterpret_cast<pthread_t>(m_thread.load()), &_clock) && !clock_gettime(_clock, &thread_time))
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if (!pthread_getcpuclockid(reinterpret_cast<pthread_t>(handle), &_clock) && !clock_gettime(_clock, &thread_time))
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{
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cycles = static_cast<u64>(thread_time.tv_sec) * 1'000'000'000 + thread_time.tv_nsec;
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#endif
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@ -2317,19 +2341,15 @@ void thread_ctrl::emergency_exit(std::string_view reason)
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if (!_self)
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{
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// Unused, detached thread support remnant
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delete _this;
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}
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thread_base::finalize(0);
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#ifdef _WIN32
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_endthread();
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_endthreadex(0);
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#else
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if (_self)
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{
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pthread_detach(reinterpret_cast<pthread_t>(_self));
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}
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pthread_exit(0);
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#endif
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}
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@ -111,22 +111,22 @@ private:
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stx::atomic_cptr<std::string> m_tname;
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// Start thread
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void start(native_entry, void(*)());
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void start(native_entry);
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// Called at the thread start
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void initialize(void (*error_cb)());
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// Called at the thread end, returns true if needs destruction
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// Called at the thread end, returns self handle
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u64 finalize(thread_state result) noexcept;
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// Cleanup after possibly deleting the thread instance
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static void finalize(u64 _self) noexcept;
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static u64 finalize(u64 _self) noexcept;
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// Set name for debugger
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static void set_name(std::string);
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// Make trampoline with stack fix
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static void(*make_trampoline(native_entry))();
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// Make entry point
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static native_entry make_trampoline(u64(*)(thread_base*));
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friend class thread_ctrl;
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@ -277,35 +277,12 @@ class named_thread final : public Context, result_storage_t<Context>, thread_bas
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using result = result_storage_t<Context>;
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using thread = thread_base;
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// Type-erased thread entry point
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#ifdef _WIN32
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static inline uint __stdcall entry_point(void* arg)
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#else
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static inline void* entry_point(void* arg)
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#endif
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static u64 entry_point(thread_base* _base)
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{
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if (auto _this = thread_ctrl::get_current())
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{
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arg = _this;
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}
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const auto _this = static_cast<named_thread*>(static_cast<thread*>(arg));
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// Perform self-cleanup if necessary
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u64 _self = _this->entry_point();
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if (!_self)
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{
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delete _this;
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thread::finalize(0);
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return 0;
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}
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thread::finalize(_self);
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return 0;
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return static_cast<named_thread*>(_base)->entry_point2();
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}
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u64 entry_point()
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u64 entry_point2()
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{
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thread::initialize([]()
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{
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@ -330,7 +307,7 @@ class named_thread final : public Context, result_storage_t<Context>, thread_bas
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return thread::finalize(thread_state::finished);
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}
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static inline void(*trampoline)() = thread::make_trampoline(entry_point);
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static inline thread::native_entry trampoline = thread::make_trampoline(entry_point);
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friend class thread_ctrl;
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@ -341,7 +318,7 @@ public:
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: Context()
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, thread(Context::thread_name)
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{
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thread::start(&named_thread::entry_point, trampoline);
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thread::start(trampoline);
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}
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// Normal forwarding constructor
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@ -350,7 +327,7 @@ public:
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: Context(std::forward<Args>(args)...)
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, thread(name)
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{
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thread::start(&named_thread::entry_point, trampoline);
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thread::start(trampoline);
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}
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// Lambda constructor, also the implicit deduction guide candidate
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@ -358,7 +335,7 @@ public:
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: Context(std::forward<Context>(f))
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, thread(name)
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{
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thread::start(&named_thread::entry_point, trampoline);
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thread::start(trampoline);
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}
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named_thread(const named_thread&) = delete;
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@ -469,6 +469,8 @@ void GLGSRender::on_exit()
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GSRender::on_exit();
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zcull_ctrl.release();
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gl::set_primary_context_thread(false);
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}
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void GLGSRender::clear_surface(u32 arg)
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@ -11,16 +11,16 @@ namespace gl
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capabilities g_driver_caps;
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const fbo screen{};
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thread_local bool tls_primary_context_thread = false;
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static thread_local bool s_tls_primary_context_thread = false;
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void set_primary_context_thread()
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void set_primary_context_thread(bool value)
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{
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tls_primary_context_thread = true;
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s_tls_primary_context_thread = value;
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}
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bool is_primary_context_thread()
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{
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return tls_primary_context_thread;
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return s_tls_primary_context_thread;
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}
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GLenum draw_mode(rsx::primitive_type in)
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@ -55,7 +55,7 @@ namespace gl
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bool is_primitive_native(rsx::primitive_type in);
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GLenum draw_mode(rsx::primitive_type in);
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void set_primary_context_thread();
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void set_primary_context_thread(bool = true);
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bool is_primary_context_thread();
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// Texture helpers
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