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gido fix

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lizzie 2026-05-23 10:43:32 +00:00
parent bdb15afa94
commit 16241fcb72
5 changed files with 24 additions and 67 deletions
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44
src/common/x64/cpu_wait.cpp
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@ -1,44 +0,0 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#include <thread>
#ifdef _MSC_VER
#include <intrin.h>
#else
#include <x86intrin.h>
#endif
#include "common/x64/cpu_detect.h"
#include "common/x64/cpu_wait.h"
#include "common/x64/rdtsc.h"
namespace Common::X64 {
#ifdef __clang__
__attribute__((target("waitpkg,mwaitx")))
#elif defined(__GNUC__)
#pragma GCC target("waitpkg")
#pragma GCC target("mwaitx")
#endif
void MicroSleep(const CPUCaps& caps, u64 cycles) {
do {
u64 start = FencedRDTSC();
if (caps.waitpkg) {
constexpr auto RequestC02State = 0U;
_tpause(RequestC02State, start + cycles);
} else if (caps.monitorx) {
constexpr auto EnableWaitTimeFlag = 1U << 1;
constexpr auto RequestC1State = 0U;
// monitor_var should be aligned to a cache line.
alignas(64) static const u64 monitor_var{};
_mm_monitorx(const_cast<u64*>(std::addressof(monitor_var)), 0, 0);
_mm_mwaitx(EnableWaitTimeFlag, RequestC1State, cycles);
} else {
std::this_thread::yield();
}
cycles -= FencedRDTSC() - start;
} while (cycles > 0);
}
} // namespace Common::X64

13
src/common/x64/cpu_wait.h
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@ -1,13 +0,0 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include "common/common_types.h"
#include "common/x64/cpu_detect.h"
namespace Common::X64 {
void MicroSleep(const CPUCaps& caps, u64 cycles);
} // namespace Common::X64