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kernel: split SetAddressKey into user and kernel variants
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parent
5086380a63
commit
693cad8e9b
5 changed files with 30 additions and 12 deletions
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@ -171,7 +171,7 @@ Result KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 value)
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R_UNLESS(owner_thread != nullptr, ResultInvalidHandle);
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R_UNLESS(owner_thread != nullptr, ResultInvalidHandle);
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// Update the lock.
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// Update the lock.
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cur_thread->SetAddressKey(addr, value);
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cur_thread->SetUserAddressKey(addr, value);
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owner_thread->AddWaiter(cur_thread);
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owner_thread->AddWaiter(cur_thread);
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// Begin waiting.
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// Begin waiting.
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@ -68,7 +68,7 @@ bool KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
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// Add the current thread as a waiter on the owner.
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// Add the current thread as a waiter on the owner.
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KThread* owner_thread = reinterpret_cast<KThread*>(_owner & ~1ULL);
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KThread* owner_thread = reinterpret_cast<KThread*>(_owner & ~1ULL);
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cur_thread->SetAddressKey(reinterpret_cast<uintptr_t>(std::addressof(tag)));
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cur_thread->SetKernelAddressKey(reinterpret_cast<uintptr_t>(std::addressof(tag)));
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owner_thread->AddWaiter(cur_thread);
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owner_thread->AddWaiter(cur_thread);
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// Begin waiting to hold the lock.
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// Begin waiting to hold the lock.
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@ -67,9 +67,9 @@ constexpr size_t KernelPageBufferAdditionalSize = 0x33C000;
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constexpr std::size_t KernelResourceSize = KernelPageTableHeapSize + KernelInitialPageHeapSize +
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constexpr std::size_t KernelResourceSize = KernelPageTableHeapSize + KernelInitialPageHeapSize +
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KernelSlabHeapSize + KernelPageBufferHeapSize;
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KernelSlabHeapSize + KernelPageBufferHeapSize;
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constexpr bool IsKernelAddressKey(VAddr key) {
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//! NB: Use KThread::GetAddressKeyIsKernel().
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return KernelVirtualAddressSpaceBase <= key && key <= KernelVirtualAddressSpaceLast;
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//! See explanation for deviation of GetAddressKey.
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}
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bool IsKernelAddressKey(VAddr key) = delete;
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constexpr bool IsKernelAddress(VAddr address) {
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constexpr bool IsKernelAddress(VAddr address) {
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return KernelVirtualAddressSpaceBase <= address && address < KernelVirtualAddressSpaceEnd;
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return KernelVirtualAddressSpaceBase <= address && address < KernelVirtualAddressSpaceEnd;
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@ -330,7 +330,7 @@ void KThread::Finalize() {
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KThread* const waiter = std::addressof(*it);
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KThread* const waiter = std::addressof(*it);
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// The thread shouldn't be a kernel waiter.
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// The thread shouldn't be a kernel waiter.
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ASSERT(!IsKernelAddressKey(waiter->GetAddressKey()));
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ASSERT(!waiter->GetAddressKeyIsKernel());
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// Clear the lock owner.
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// Clear the lock owner.
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waiter->SetLockOwner(nullptr);
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waiter->SetLockOwner(nullptr);
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@ -884,7 +884,7 @@ void KThread::AddWaiterImpl(KThread* thread) {
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}
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}
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// Keep track of how many kernel waiters we have.
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// Keep track of how many kernel waiters we have.
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if (IsKernelAddressKey(thread->GetAddressKey())) {
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if (thread->GetAddressKeyIsKernel()) {
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ASSERT((num_kernel_waiters++) >= 0);
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ASSERT((num_kernel_waiters++) >= 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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}
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@ -898,7 +898,7 @@ void KThread::RemoveWaiterImpl(KThread* thread) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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// Keep track of how many kernel waiters we have.
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// Keep track of how many kernel waiters we have.
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if (IsKernelAddressKey(thread->GetAddressKey())) {
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if (thread->GetAddressKeyIsKernel()) {
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ASSERT((num_kernel_waiters--) > 0);
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ASSERT((num_kernel_waiters--) > 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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}
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@ -974,7 +974,7 @@ KThread* KThread::RemoveWaiterByKey(s32* out_num_waiters, VAddr key) {
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KThread* thread = std::addressof(*it);
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KThread* thread = std::addressof(*it);
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// Keep track of how many kernel waiters we have.
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// Keep track of how many kernel waiters we have.
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if (IsKernelAddressKey(thread->GetAddressKey())) {
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if (thread->GetAddressKeyIsKernel()) {
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ASSERT((num_kernel_waiters--) > 0);
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ASSERT((num_kernel_waiters--) > 0);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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KScheduler::SetSchedulerUpdateNeeded(kernel);
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}
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}
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@ -605,13 +605,30 @@ public:
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return address_key_value;
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return address_key_value;
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}
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}
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void SetAddressKey(VAddr key) {
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[[nodiscard]] bool GetAddressKeyIsKernel() const {
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address_key = key;
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return address_key_is_kernel;
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}
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}
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void SetAddressKey(VAddr key, u32 val) {
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//! NB: intentional deviation from official kernel.
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//
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// Separate SetAddressKey into user and kernel versions
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// to cope with arbitrary host pointers making their way
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// into things.
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void SetUserAddressKey(VAddr key) {
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address_key = key;
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address_key_is_kernel = false;
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}
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void SetUserAddressKey(VAddr key, u32 val) {
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address_key = key;
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address_key = key;
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address_key_value = val;
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address_key_value = val;
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address_key_is_kernel = false;
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}
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void SetKernelAddressKey(VAddr key) {
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address_key = key;
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address_key_is_kernel = true;
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}
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}
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void ClearWaitQueue() {
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void ClearWaitQueue() {
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@ -770,6 +787,7 @@ private:
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bool debug_attached{};
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bool debug_attached{};
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s8 priority_inheritance_count{};
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s8 priority_inheritance_count{};
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bool resource_limit_release_hint{};
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bool resource_limit_release_hint{};
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bool address_key_is_kernel{};
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StackParameters stack_parameters{};
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StackParameters stack_parameters{};
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Common::SpinLock context_guard{};
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Common::SpinLock context_guard{};
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