mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-09-20 07:49:26 -04:00
221 lines
8.6 KiB
C++
221 lines
8.6 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
Result KThread::Initialize(KThreadFunction func, uintptr_t arg, void *kern_stack_top, KProcessAddress user_stack_top, s32 prio, s32 core, KProcess *owner, ThreadType type) {
|
|
/* Assert parameters are valid. */
|
|
MESOSPHERE_ASSERT_THIS();
|
|
MESOSPHERE_ASSERT(kern_stack_top != nullptr);
|
|
MESOSPHERE_ASSERT((type == ThreadType_Main) || (ams::svc::HighestThreadPriority <= prio && prio <= ams::svc::LowestThreadPriority));
|
|
MESOSPHERE_ASSERT((owner != nullptr) || (type != ThreadType_User));
|
|
MESOSPHERE_ASSERT(0 <= core && core < static_cast<s32>(cpu::NumCores));
|
|
|
|
/* First, clear the TLS address. */
|
|
this->tls_address = Null<KProcessAddress>;
|
|
|
|
const uintptr_t kern_stack_top_address = reinterpret_cast<uintptr_t>(kern_stack_top);
|
|
|
|
/* Next, assert things based on the type. */
|
|
switch (type) {
|
|
case ThreadType_Main:
|
|
{
|
|
MESOSPHERE_ASSERT(arg == 0);
|
|
}
|
|
[[fallthrough]];
|
|
case ThreadType_HighPriority:
|
|
{
|
|
MESOSPHERE_ASSERT(core == GetCurrentCoreId());
|
|
}
|
|
[[fallthrough]];
|
|
case ThreadType_Kernel:
|
|
{
|
|
MESOSPHERE_ASSERT(user_stack_top == 0);
|
|
MESOSPHERE_ASSERT(util::IsAligned(kern_stack_top_address, PageSize));
|
|
}
|
|
[[fallthrough]];
|
|
case ThreadType_User:
|
|
{
|
|
MESOSPHERE_ASSERT((owner == nullptr) || (owner->GetCoreMask() | (1ul << core)) == owner->GetCoreMask());
|
|
MESOSPHERE_ASSERT((owner == nullptr) || (owner->GetPriorityMask() | (1ul << prio)) == owner->GetPriorityMask());
|
|
}
|
|
break;
|
|
default:
|
|
MESOSPHERE_PANIC("KThread::Initialize: Unknown ThreadType %u", static_cast<u32>(type));
|
|
break;
|
|
}
|
|
|
|
/* Set the ideal core ID and affinity mask. */
|
|
this->ideal_core_id = core;
|
|
this->affinity_mask.SetAffinity(core, true);
|
|
|
|
/* Set the thread state. */
|
|
this->thread_state = (type == ThreadType_Main) ? ThreadState_Runnable : ThreadState_Initialized;
|
|
|
|
/* Set TLS address and TLS heap address. */
|
|
/* NOTE: Nintendo wrote TLS address above already, but official code really does write tls address twice. */
|
|
this->tls_address = 0;
|
|
this->tls_heap_address = 0;
|
|
|
|
/* Set parent and condvar tree. */
|
|
this->parent = nullptr;
|
|
this->cond_var_tree = nullptr;
|
|
|
|
/* Set sync booleans. */
|
|
this->signaled = false;
|
|
this->ipc_cancelled = false;
|
|
this->termination_requested = false;
|
|
this->wait_cancelled = false;
|
|
this->cancellable = false;
|
|
|
|
/* Set core ID and wait result. */
|
|
this->core_id = this->ideal_core_id;
|
|
this->wait_result = svc::ResultNoSynchronizationObject();
|
|
|
|
/* Set the stack top. */
|
|
this->kernel_stack_top = kern_stack_top;
|
|
|
|
/* Set priorities. */
|
|
this->priority = prio;
|
|
this->base_priority = prio;
|
|
|
|
/* Set sync object and waiting lock to null. */
|
|
this->synced_object = nullptr;
|
|
this->waiting_lock = nullptr;
|
|
|
|
/* Initialize sleeping queue. */
|
|
this->sleeping_queue_entry.Initialize();
|
|
this->sleeping_queue = nullptr;
|
|
|
|
/* Set suspend flags. */
|
|
this->suspend_request_flags = 0;
|
|
this->suspend_allowed_flags = ThreadState_SuspendFlagMask;
|
|
|
|
/* We're neither debug attached, nor are we nesting our priority inheritance. */
|
|
this->debug_attached = false;
|
|
this->priority_inheritance_count = 0;
|
|
|
|
/* We haven't been scheduled, and we have done no light IPC. */
|
|
this->schedule_count = -1;
|
|
this->last_scheduled_tick = 0;
|
|
this->light_ipc_data = nullptr;
|
|
|
|
/* We're not waiting for a lock, and we haven't disabled migration. */
|
|
this->lock_owner = nullptr;
|
|
this->num_core_migration_disables = 0;
|
|
|
|
/* We have no waiters, but we do have an entrypoint. */
|
|
this->num_kernel_waiters = 0;
|
|
this->entrypoint = reinterpret_cast<uintptr_t>(func);
|
|
|
|
/* We don't need a release (probably), and we've spent no time on the cpu. */
|
|
this->resource_limit_release_hint = 0;
|
|
this->cpu_time = 0;
|
|
|
|
/* Clear our stack parameters. */
|
|
std::memset(static_cast<void *>(std::addressof(this->GetStackParameters())), 0, sizeof(StackParameters));
|
|
|
|
/* Setup the TLS, if needed. */
|
|
if (type == ThreadType_User) {
|
|
/* TODO: R_TRY(owner->CreateThreadLocalRegion(&this->tls_address)); */
|
|
/* TODO: this->tls_heap_address = owner->GetThreadLocalRegionAddress(this->tls_address); */
|
|
std::memset(this->tls_heap_address, 0, ams::svc::ThreadLocalRegionSize);
|
|
}
|
|
|
|
/* Set parent, if relevant. */
|
|
if (owner != nullptr) {
|
|
this->parent = owner;
|
|
this->parent->Open();
|
|
/* TODO: this->parent->IncrementThreadCount(); */
|
|
}
|
|
|
|
/* Initialize thread context. */
|
|
constexpr bool IsDefault64Bit = sizeof(uintptr_t) == sizeof(u64);
|
|
const bool is_64_bit = this->parent ? this->parent->Is64Bit() : IsDefault64Bit;
|
|
const bool is_user = (type == ThreadType_User);
|
|
const bool is_main = (type == ThreadType_Main);
|
|
this->thread_context.Initialize(this->entrypoint, reinterpret_cast<uintptr_t>(this->GetStackTop()), GetInteger(user_stack_top), arg, is_user, is_64_bit, is_main);
|
|
|
|
/* Setup the stack parameters. */
|
|
StackParameters &sp = this->GetStackParameters();
|
|
if (this->parent != nullptr) {
|
|
/* TODO: this->parent->CopySvcPermissionTo(pos.svc_permission); */
|
|
}
|
|
sp.context = std::addressof(this->thread_context);
|
|
sp.disable_count = 1;
|
|
this->SetInExceptionHandler();
|
|
|
|
/* Set thread ID. */
|
|
this->thread_id = s_next_thread_id++;
|
|
|
|
/* We initialized! */
|
|
this->initialized = true;
|
|
|
|
/* Register ourselves with our parent process. */
|
|
if (this->parent != nullptr) {
|
|
/* TODO: this->parent->RegisterThread(this); */
|
|
/* TODO: if (this->parent->IsSuspended()) { this->RequestSuspend(SuspendType_Process); } */
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
void KThread::PostDestroy(uintptr_t arg) {
|
|
KProcess *owner = reinterpret_cast<KProcess *>(arg & ~1ul);
|
|
const bool resource_limit_release_hint = (arg & 1);
|
|
if (owner != nullptr) {
|
|
/* TODO: Release from owner resource limit. */
|
|
(void)(resource_limit_release_hint);
|
|
owner->Close();
|
|
} else {
|
|
/* TODO: Release from system resource limit. */
|
|
}
|
|
}
|
|
|
|
void KThread::Finalize() {
|
|
/* TODO */
|
|
}
|
|
|
|
bool KThread::IsSignaled() const {
|
|
return this->signaled;
|
|
}
|
|
|
|
void KThread::OnTimer() {
|
|
/* TODO */
|
|
}
|
|
|
|
void KThread::DoWorkerTask() {
|
|
/* TODO */
|
|
}
|
|
|
|
void KThread::SetState(ThreadState state) {
|
|
MESOSPHERE_ASSERT_THIS();
|
|
|
|
KScopedSchedulerLock sl;
|
|
|
|
const ThreadState old_state = this->thread_state;
|
|
this->thread_state = static_cast<ThreadState>((old_state & ~ThreadState_Mask) | (state & ThreadState_Mask));
|
|
if (this->thread_state != old_state) {
|
|
KScheduler::OnThreadStateChanged(this, old_state);
|
|
}
|
|
}
|
|
|
|
KThreadContext *KThread::GetContextForSchedulerLoop() {
|
|
return std::addressof(this->thread_context);
|
|
}
|
|
|
|
}
|