mirrors/suyu
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/suyu.git synced 2024-11-15 22:54:00 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Mutex: Revert workaround due to poor exclusive memory.

Browse source
This commit is contained in:
Fernando Sahmkow 2020-03-07 19:04:02 -04:00
parent cd1c38be8d
commit 445b4342b3
1 changed files with 2 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/core/hle/kernel/mutex.cpp
View file

@ -9,7 +9,6 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/arm/exclusive_monitor.h"
#include "core/core.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/handle_table.h"
@ -135,12 +134,8 @@ std::pair<ResultCode, std::shared_ptr<Thread>> Mutex::Unlock(std::shared_ptr<Thr
}
auto [new_owner, num_waiters] = GetHighestPriorityMutexWaitingThread(owner, address);
auto& monitor = system.Monitor();
const std::size_t current_core = system.CurrentCoreIndex();
if (new_owner == nullptr) {
do {
monitor.SetExclusive32(current_core, address);
} while (!monitor.ExclusiveWrite32(current_core, address, 0));
system.Memory().Write32(address, 0);
return {RESULT_SUCCESS, nullptr};
}
// Transfer the ownership of the mutex from the previous owner to the new one.
@ -154,9 +149,7 @@ std::pair<ResultCode, std::shared_ptr<Thread>> Mutex::Unlock(std::shared_ptr<Thr
new_owner->SetLockOwner(nullptr);
new_owner->ResumeFromWait();
do {
monitor.SetExclusive32(current_core, address);
} while (!monitor.ExclusiveWrite32(current_core, address, mutex_value));
system.Memory().Write32(address, mutex_value);
return {RESULT_SUCCESS, new_owner};
}