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Code Issues Releases Activity

kern: add all kthread members

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This commit is contained in:
Michael Scire 2020-01-31 00:07:06 -08:00
parent 08cb370a45
commit d9db723bc8
4 changed files with 187 additions and 15 deletions
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150
libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp
View file

@ -18,12 +18,45 @@
#include <mesosphere/kern_k_synchronization_object.hpp>
#include <mesosphere/kern_k_affinity_mask.hpp>
#include <mesosphere/kern_k_thread_context.hpp>
#include <mesosphere/kern_k_current_context.hpp>
namespace ams::kern {
class KThread final : public KAutoObjectWithSlabHeapAndContainer<KThread, KSynchronizationObject> {
MESOSPHERE_AUTOOBJECT_TRAITS(KThread, KSynchronizationObject);
public:
enum ThreadType : u32 {
ThreadType_Main = 0,
ThreadType_Kernel = 1,
ThreadType_HighPriority = 2,
ThreadType_User = 3,
};
enum SuspendType : u32 {
SuspendType_Process = 0,
SuspendType_Thread = 1,
SuspendType_Debug = 2,
};
enum ThreadState : u16 {
ThreadState_Initialized = 0,
ThreadState_Waiting = 1,
ThreadState_Runnable = 2,
ThreadState_Terminated = 3,
ThreadState_SuspendShift = 4,
ThreadState_Mask = (1 << ThreadState_SuspendShift) - 1,
ThreadState_ProcessSuspended = (1 << (SuspendType_Process + ThreadState_SuspendShift)),
ThreadState_ThreadSuspended = (1 << (SuspendType_Thread + ThreadState_SuspendShift)),
ThreadState_DebugSuspended = (1 << (SuspendType_Debug + ThreadState_SuspendShift)),
};
enum DpcFlag : u32 {
DpcFlag_Terminating = 0,
DpcFlag_Terminated = 1,
};
struct StackParameters {
alignas(0x10) u8 svc_permission[0x10];
std::atomic<u8> dpc_flags;
@ -49,37 +82,136 @@ namespace ams::kern {
constexpr ALWAYS_INLINE void SetNext(KThread *t) { this->next = t; }
};
private:
/* TODO: Other members. These are placeholder to get KScheduler to compile. */
KAffinityMask affinity_mask;
public:
constexpr KThread() : KAutoObjectWithSlabHeapAndContainer<KThread, KSynchronizationObject>(), affinity_mask() { /* ... */ }
static constexpr size_t PriorityInheritanceCountMax = 10;
union SyncObjectBuffer {
KSynchronizationObject *sync_objects[ams::svc::MaxWaitSynchronizationHandleCount];
ams::svc::Handle handles[ams::svc::MaxWaitSynchronizationHandleCount * (sizeof(KSynchronizationObject *) / sizeof(ams::svc::Handle))];
constexpr ALWAYS_INLINE const KAffinityMask &GetAffinityMask() const { return this->affinity_mask; }
constexpr SyncObjectBuffer() : sync_objects() { /* ... */ }
};
static_assert(sizeof(SyncObjectBuffer::sync_objects) == sizeof(SyncObjectBuffer::handles));
private:
alignas(16) KThreadContext thread_context;
KAffinityMask affinity_mask;
u64 thread_id;
std::atomic<u64> cpu_time;
KSynchronizationObject *synced_object;
KLightLock *waiting_lock;
uintptr_t condvar_key;
uintptr_t entrypoint;
KProcessAddress arbiter_key;
KProcess *parent;
void *kernel_stack_top;
u32 *light_ipc_data;
KProcessAddress tls_address;
void *tls_heap_address;
KLightLock activity_pause_lock;
SyncObjectBuffer sync_object_buffer;
s64 schedule_count;
s64 last_scheduled_tick;
QueueEntry per_core_priority_queue_entry[cpu::NumCores];
QueueEntry sleeping_queue_entry;
void /* TODO KThreadQueue */ *sleeping_queue;
util::IntrusiveListNode waiter_list_node;
util::IntrusiveRedBlackTreeNode condvar_arbiter_tree_node;
util::IntrusiveListNode process_list_node;
using WaiterListTraits = util::IntrusiveListMemberTraitsDeferredAssert<&KThread::waiter_list_node>;
using WaiterList = WaiterListTraits::ListType;
WaiterList waiter_list;
WaiterList paused_waiter_list;
KThread *lock_owner;
void /* TODO KCondVar*/ *cond_var_tree;
uintptr_t debug_params[3];
u32 arbiter_value;
u32 suspend_request_flags;
u32 suspend_allowed_flags;
Result wait_result;
Result debug_exception_result;
s32 priority;
s32 core_id;
s32 base_priority;
s32 ideal_core_id;
s32 num_kernel_waiters;
KAffinityMask original_affinity_mask;
s32 original_ideal_core_id;
s32 num_core_migration_disables;
ThreadState thread_state;
std::atomic<bool> termination_requested;
bool ipc_cancelled;
bool wait_cancelled;
bool cancelable;
bool registered;
bool signaled;
bool initialized;
bool debug_attached;
s8 priority_inheritance_count;
bool resource_limit_release_hint;
public:
static void PostDestroy(uintptr_t arg);
public:
explicit KThread() /* TODO: : ? */ { MESOSPHERE_ASSERT_THIS(); }
/* TODO: Is a constexpr KThread() possible? */
private:
StackParameters &GetStackParameters() {
return *(reinterpret_cast<StackParameters *>(this->kernel_stack_top) - 1);
}
const StackParameters &GetStackParameters() const {
return *(reinterpret_cast<StackParameters *>(this->kernel_stack_top) - 1);
}
public:
ALWAYS_INLINE s32 GetDisableDispatchCount() const {
MESOSPHERE_ASSERT_THIS();
return GetStackParameters().disable_count;
}
ALWAYS_INLINE void DisableDispatch() {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(GetCurrentThread().GetDisableDispatchCount() >= 0);
GetStackParameters().disable_count++;
}
ALWAYS_INLINE void EnableDispatch() {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(GetCurrentThread().GetDisableDispatchCount() > 0);
GetStackParameters().disable_count--;
}
public:
constexpr ALWAYS_INLINE const KAffinityMask &GetAffinityMask() const { return this->affinity_mask; }
/* TODO: This is a placeholder definition. */
public:
static constexpr bool IsWaiterListValid() {
return WaiterListTraits::IsValid();
}
};
static_assert(alignof(KThread) == 0x10);
static_assert(KThread::IsWaiterListValid());
class KScopedDisableDispatch {
public:
explicit ALWAYS_INLINE KScopedDisableDispatch() {
/* TODO */
GetCurrentThread().DisableDispatch();
}
ALWAYS_INLINE ~KScopedDisableDispatch() {
/* TODO */
GetCurrentThread().EnableDispatch();
}
};
class KScopedEnableDispatch {
public:
explicit ALWAYS_INLINE KScopedEnableDispatch() {
/* TODO */
GetCurrentThread().EnableDispatch();
}
ALWAYS_INLINE ~KScopedEnableDispatch() {
/* TODO */
GetCurrentThread().DisableDispatch();
}
};

2
libraries/libvapours/include/vapours/svc/svc_common.hpp
View file

@ -28,6 +28,8 @@ namespace ams::svc {
#error "Unknown target for svc::Handle"
#endif
static constexpr size_t MaxWaitSynchronizationHandleCount = 0x40;
enum class PseudoHandle : Handle {
CurrentThread = 0xFFFF8000,
CurrentProcess = 0xFFFF8001,

32
libraries/libvapours/include/vapours/util/util_intrusive_list.hpp
View file

@ -566,6 +566,38 @@ namespace ams::util {
static_assert(std::addressof(GetParent(GetNode(GetReference(DerivedStorage)))) == GetPointer(DerivedStorage));
};
template<auto T, class Derived = util::impl::GetParentType<T>>
class IntrusiveListMemberTraitsDeferredAssert;
template<class Parent, IntrusiveListNode Parent::*Member, class Derived>
class IntrusiveListMemberTraitsDeferredAssert<Member, Derived> {
public:
using ListType = IntrusiveList<Derived, IntrusiveListMemberTraitsDeferredAssert>;
static constexpr bool IsValid() {
TYPED_STORAGE(Derived) DerivedStorage = {};
return std::addressof(GetParent(GetNode(GetReference(DerivedStorage)))) == GetPointer(DerivedStorage);
}
private:
friend class IntrusiveList<Derived, IntrusiveListMemberTraitsDeferredAssert>;
static constexpr IntrusiveListNode &GetNode(Derived &parent) {
return parent.*Member;
}
static constexpr IntrusiveListNode const &GetNode(Derived const &parent) {
return parent.*Member;
}
static constexpr Derived &GetParent(IntrusiveListNode &node) {
return util::GetParentReference<Member, Derived>(&node);
}
static constexpr Derived const &GetParent(IntrusiveListNode const &node) {
return util::GetParentReference<Member, Derived>(&node);
}
};
template<class Derived>
class IntrusiveListBaseNode : public IntrusiveListNode{};

18
libraries/libvapours/include/vapours/util/util_parent_of_member.hpp
View file

@ -26,13 +26,15 @@ namespace ams::util {
struct OffsetOfUnionHolder {
template<typename ParentType, typename MemberType, size_t Offset>
union UnionImpl {
using PaddingMember = std::array<char, alignof(ParentType)>;
using PaddingMember = char;
static constexpr size_t GetOffset() { return Offset; }
#pragma pack(push, 1)
struct {
PaddingMember padding[Offset];
MemberType members[(sizeof(ParentType) / sizeof(MemberType)) + 1];
} data;
#pragma pack(pop)
UnionImpl<ParentType, MemberType, Offset + 1> next_union;
};
@ -47,12 +49,12 @@ namespace ams::util {
};
template<typename ParentType, typename MemberType>
union UnionImpl<ParentType, MemberType, MaxDepth> { /* Empty */ };
union UnionImpl<ParentType, MemberType, MaxDepth> { /* Empty ... */ };
};
template<typename ParentType, typename MemberType>
struct OffsetOfCalculator {
using UnionHolder = typename OffsetOfUnionHolder<sizeof(MemberType) / alignof(MemberType) + 1>::template UnionImpl<ParentType, MemberType, 0>;
using UnionHolder = typename OffsetOfUnionHolder<sizeof(MemberType)>::template UnionImpl<ParentType, MemberType, 0>;
union Union {
char c;
UnionHolder first_union;
@ -81,15 +83,19 @@ namespace ams::util {
const auto start = std::addressof(cur_union.data.members[0]);
const auto next = GetNextAddress(start, target);
if constexpr (Offset > 0x10) {
__builtin_unreachable();
}
if (next != target) {
if constexpr (Offset < sizeof(MemberType) / alignof(MemberType)) {
if constexpr (Offset < sizeof(MemberType) - 1) {
return OffsetOfImpl(member, cur_union.next_union);
} else {
std::abort();
__builtin_unreachable();
}
}
return (next - start) * sizeof(MemberType) + Offset * alignof(MemberType);
return (next - start) * sizeof(MemberType) + Offset;
}