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video_core: Use adaptive mutex on Linux (#2105)

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Fix performance regression with #1973 on SteamDeck
This commit is contained in:
Quang Ngô 2025-01-18 14:47:38 +07:00 • committed by GitHub
parent 9a956f5ed0
commit 81ad575b22
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GPG key ID: B5690EEEBB952194
3 changed files with 41 additions and 0 deletions
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27
src/common/adaptive_mutex.h Normal file
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@ -0,0 +1,27 @@
// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#ifdef __linux__
#include <pthread.h>
#endif
namespace Common {
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
class AdaptiveMutex {
public:
void lock() {
pthread_mutex_lock(&mutex);
}
void unlock() {
pthread_mutex_unlock(&mutex);
}
private:
pthread_mutex_t mutex = PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
};
#endif // PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
} // namespace Common

7
src/video_core/buffer_cache/word_manager.h
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@ -8,6 +8,9 @@
#include <span>
#include <utility>
#ifdef __linux__
#include "common/adaptive_mutex.h"
#endif
#include "common/spin_lock.h"
#include "common/types.h"
#include "video_core/page_manager.h"
@ -272,7 +275,11 @@ private:
}
}
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
Common::AdaptiveMutex lock;
#else
Common::SpinLock lock;
#endif
PageManager* tracker;
VAddr cpu_addr = 0;
WordsArray cpu;

7
src/video_core/page_manager.h
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@ -5,6 +5,9 @@
#include <memory>
#include <boost/icl/interval_map.hpp>
#ifdef __linux__
#include "common/adaptive_mutex.h"
#endif
#include "common/spin_lock.h"
#include "common/types.h"
@ -36,7 +39,11 @@ private:
std::unique_ptr<Impl> impl;
Vulkan::Rasterizer* rasterizer;
boost::icl::interval_map<VAddr, s32> cached_pages;
#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
Common::AdaptiveMutex lock;
#else
Common::SpinLock lock;
#endif
};
} // namespace VideoCore