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vulkan: Workaround to avoid lockup due to double fault

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- TODO: Ensure no page faults occur within a page-fault handler!
This commit is contained in:
kd-11 2017-07-24 21:47:27 +03:00
parent 17c399d4e8
commit fb7ccbd7b4
1 changed files with 23 additions and 5 deletions
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28
rpcs3/Emu/RSX/VK/VKTextureCache.h
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@ -315,6 +315,7 @@ namespace vk
};
private:
std::atomic_bool in_access_violation_handler = { false };
shared_mutex m_cache_mutex;
std::unordered_map<u32, ranged_storage> m_cache;
@ -766,7 +767,11 @@ namespace vk
std::pair<u32, u32> trampled_range = std::make_pair(0xffffffff, 0x0);
std::unordered_map<u32, bool> processed_ranges;
reader_lock lock(m_cache_mutex);
const bool _false = false;
const bool acquire_lock = in_access_violation_handler.compare_exchange_weak(const_cast<bool&>(_false), true);
if (acquire_lock)
m_cache_mutex.lock_shared();
for (auto It = m_cache.begin(); It != m_cache.end(); It++)
{
@ -829,6 +834,12 @@ namespace vk
processed_ranges[base] = true;
}
if (acquire_lock)
{
in_access_violation_handler = false;
m_cache_mutex.unlock_shared();
}
return response;
}
@ -847,7 +858,11 @@ namespace vk
std::pair<u32, u32> trampled_range = std::make_pair(0xffffffff, 0x0);
std::unordered_map<u32, bool> processed_ranges;
reader_lock lock(m_cache_mutex);
const bool _false = false;
const bool acquire_lock = in_access_violation_handler.compare_exchange_weak(const_cast<bool&>(_false), true);
if (acquire_lock)
m_cache_mutex.lock_shared();
for (auto It = m_cache.begin(); It != m_cache.end(); It++)
{
@ -889,9 +904,6 @@ namespace vk
range_reset = true;
}
// Upgrade to writer lock
lock.upgrade();
tex.set_dirty(true);
tex.unprotect();
@ -909,6 +921,12 @@ namespace vk
processed_ranges[base] = true;
}
if (acquire_lock)
{
in_access_violation_handler = false;
m_cache_mutex.unlock_shared();
}
return response;
}