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kern: optimize handle table layout

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This commit is contained in:
Michael Scire 2021-09-17 15:03:21 -07:00
parent 4a1ca5f39b
commit a5aed96b80
2 changed files with 11 additions and 26 deletions
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23
libraries/libmesosphere/include/mesosphere/kern_k_handle_table.hpp
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@ -54,14 +54,10 @@ namespace ams::kern {
} }
union EntryInfo { union EntryInfo {
struct {
u16 linear_id; u16 linear_id;
u16 type; s16 next_free_index;
} info;
s32 next_free_index;
constexpr ALWAYS_INLINE u16 GetLinearId() const { return info.linear_id; } constexpr ALWAYS_INLINE u16 GetLinearId() const { return linear_id; }
constexpr ALWAYS_INLINE u16 GetType() const { return info.type; }
constexpr ALWAYS_INLINE s32 GetNextFreeIndex() const { return next_free_index; } constexpr ALWAYS_INLINE s32 GetNextFreeIndex() const { return next_free_index; }
}; };
private: private:
@ -187,17 +183,8 @@ namespace ams::kern {
NOINLINE Result Reserve(ams::svc::Handle *out_handle); NOINLINE Result Reserve(ams::svc::Handle *out_handle);
NOINLINE void Unreserve(ams::svc::Handle handle); NOINLINE void Unreserve(ams::svc::Handle handle);
template<typename T> NOINLINE Result Add(ams::svc::Handle *out_handle, KAutoObject *obj);
ALWAYS_INLINE Result Add(ams::svc::Handle *out_handle, T *obj) { NOINLINE void Register(ams::svc::Handle handle, KAutoObject *obj);
static_assert(std::is_base_of<KAutoObject, T>::value);
return this->Add(out_handle, obj, obj->GetTypeObj().GetClassToken());
}
template<typename T>
ALWAYS_INLINE void Register(ams::svc::Handle handle, T *obj) {
static_assert(std::is_base_of<KAutoObject, T>::value);
return this->Register(handle, obj, obj->GetTypeObj().GetClassToken());
}
template<typename T> template<typename T>
ALWAYS_INLINE bool GetMultipleObjects(T **out, const ams::svc::Handle *handles, size_t num_handles) const { ALWAYS_INLINE bool GetMultipleObjects(T **out, const ams::svc::Handle *handles, size_t num_handles) const {
@ -242,8 +229,6 @@ namespace ams::kern {
return false; return false;
} }
private: private:
NOINLINE Result Add(ams::svc::Handle *out_handle, KAutoObject *obj, u16 type);
NOINLINE void Register(ams::svc::Handle handle, KAutoObject *obj, u16 type);
constexpr ALWAYS_INLINE s32 AllocateEntry() { constexpr ALWAYS_INLINE s32 AllocateEntry() {
MESOSPHERE_ASSERT_THIS(); MESOSPHERE_ASSERT_THIS();

8
libraries/libmesosphere/source/kern_k_handle_table.cpp
View file

@ -74,7 +74,7 @@ namespace ams::kern {
return true; return true;
} }
Result KHandleTable::Add(ams::svc::Handle *out_handle, KAutoObject *obj, u16 type) { Result KHandleTable::Add(ams::svc::Handle *out_handle, KAutoObject *obj) {
MESOSPHERE_ASSERT_THIS(); MESOSPHERE_ASSERT_THIS();
KScopedDisableDispatch dd; KScopedDisableDispatch dd;
KScopedSpinLock lk(m_lock); KScopedSpinLock lk(m_lock);
@ -87,7 +87,7 @@ namespace ams::kern {
const auto linear_id = this->AllocateLinearId(); const auto linear_id = this->AllocateLinearId();
const auto index = this->AllocateEntry(); const auto index = this->AllocateEntry();
m_entry_infos[index].info = { .linear_id = linear_id, .type = type }; m_entry_infos[index].linear_id = linear_id;
m_objects[index] = obj; m_objects[index] = obj;
obj->Open(); obj->Open();
@ -131,7 +131,7 @@ namespace ams::kern {
} }
} }
void KHandleTable::Register(ams::svc::Handle handle, KAutoObject *obj, u16 type) { void KHandleTable::Register(ams::svc::Handle handle, KAutoObject *obj) {
MESOSPHERE_ASSERT_THIS(); MESOSPHERE_ASSERT_THIS();
KScopedDisableDispatch dd; KScopedDisableDispatch dd;
KScopedSpinLock lk(m_lock); KScopedSpinLock lk(m_lock);
@ -149,7 +149,7 @@ namespace ams::kern {
/* Set the entry. */ /* Set the entry. */
MESOSPHERE_ASSERT(m_objects[index] == nullptr); MESOSPHERE_ASSERT(m_objects[index] == nullptr);
m_entry_infos[index].info = { .linear_id = linear_id, .type = type }; m_entry_infos[index].linear_id = linear_id;
m_objects[index] = obj; m_objects[index] = obj;
obj->Open(); obj->Open();