Atmosphere/libraries/libmesosphere/include/mesosphere/kern_kernel.hpp

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/*
* 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/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_typed_address.hpp>
#include <mesosphere/kern_select_cpu.hpp>
#include <mesosphere/kern_k_memory_layout.hpp>
#include <mesosphere/kern_k_memory_manager.hpp>
#include <mesosphere/kern_k_core_local_region.hpp>
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#include <mesosphere/kern_k_worker_task_manager.hpp>
namespace ams::kern {
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class KThread;
class KHardwareTimer;
class KResourceLimit;
class KInterruptManager;
class KInterruptTaskManager;
class KScheduler;
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class KMemoryManager;
class KPageTableManager;
class KMemoryBlockSlabManager;
class KBlockInfoManager;
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class KSynchronization;
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class KUnsafeMemory;
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#if defined(ATMOSPHERE_ARCH_ARM64)
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namespace arch::arm64 {
class KSupervisorPageTable;
}
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using ams::kern::arch::arm64::KSupervisorPageTable;
#else
#error "Unknown architecture for KSupervisorPageTable forward declare"
#endif
class Kernel {
public:
enum class State : u8 {
Invalid = 0,
Initializing = 1,
Initialized = 2,
};
static constexpr size_t ApplicationMemoryBlockSlabHeapSize = 20000;
static constexpr size_t SystemMemoryBlockSlabHeapSize = 10000;
static constexpr size_t BlockInfoSlabHeapSize = 4000;
private:
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static State s_state;
static KResourceLimit s_system_resource_limit;
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static KMemoryManager s_memory_manager;
static KPageTableManager s_page_table_manager;
static KMemoryBlockSlabManager s_app_memory_block_manager;
static KMemoryBlockSlabManager s_sys_memory_block_manager;
static KBlockInfoManager s_block_info_manager;
static KSupervisorPageTable s_supervisor_page_table;
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static KSynchronization s_synchronization;
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static KUnsafeMemory s_unsafe_memory;
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static KWorkerTaskManager s_worker_task_managers[KWorkerTaskManager::WorkerType_Count];
static KInterruptManager s_interrupt_manager;
static KHardwareTimer s_hardware_timers[cpu::NumCores];
private:
static ALWAYS_INLINE KCoreLocalContext &GetCoreLocalContext() {
return reinterpret_cast<KCoreLocalRegion *>(cpu::GetCoreLocalRegionAddress())->current.context;
}
static ALWAYS_INLINE KCoreLocalContext &GetCoreLocalContext(s32 core_id) {
return reinterpret_cast<KCoreLocalRegion *>(cpu::GetCoreLocalRegionAddress())->absolute[core_id].context;
}
public:
static NOINLINE void InitializeCoreLocalRegion(s32 core_id);
static NOINLINE void InitializeMainAndIdleThreads(s32 core_id);
static NOINLINE void InitializeResourceManagers(KVirtualAddress address, size_t size);
static NOINLINE void PrintLayout();
static ALWAYS_INLINE State GetState() { return s_state; }
static ALWAYS_INLINE void SetState(State state) { s_state = state; }
static KThread &GetMainThread(s32 core_id);
static KThread &GetIdleThread(s32 core_id);
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static ALWAYS_INLINE KCurrentContext &GetCurrentContext(s32 core_id) {
return GetCoreLocalContext(core_id).current;
}
static ALWAYS_INLINE KScheduler &GetScheduler() {
return GetCoreLocalContext().scheduler;
}
static ALWAYS_INLINE KScheduler &GetScheduler(s32 core_id) {
return GetCoreLocalContext(core_id).scheduler;
}
static ALWAYS_INLINE KInterruptTaskManager &GetInterruptTaskManager() {
return GetCoreLocalContext().interrupt_task_manager;
}
static ALWAYS_INLINE KInterruptManager &GetInterruptManager() {
return s_interrupt_manager;
}
static ALWAYS_INLINE KHardwareTimer &GetHardwareTimer() {
return s_hardware_timers[GetCurrentCoreId()];
}
static ALWAYS_INLINE KHardwareTimer &GetHardwareTimer(s32 core_id) {
return s_hardware_timers[core_id];
}
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static ALWAYS_INLINE KResourceLimit &GetSystemResourceLimit() {
return s_system_resource_limit;
}
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static ALWAYS_INLINE KMemoryManager &GetMemoryManager() {
return s_memory_manager;
}
static ALWAYS_INLINE KMemoryBlockSlabManager &GetApplicationMemoryBlockManager() {
return s_app_memory_block_manager;
}
static ALWAYS_INLINE KMemoryBlockSlabManager &GetSystemMemoryBlockManager() {
return s_sys_memory_block_manager;
}
static ALWAYS_INLINE KBlockInfoManager &GetBlockInfoManager() {
return s_block_info_manager;
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}
static ALWAYS_INLINE KPageTableManager &GetPageTableManager() {
return s_page_table_manager;
}
static ALWAYS_INLINE KSupervisorPageTable &GetKernelPageTable() {
return s_supervisor_page_table;
}
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static ALWAYS_INLINE KSynchronization &GetSynchronization() {
return s_synchronization;
}
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static ALWAYS_INLINE KUnsafeMemory &GetUnsafeMemory() {
return s_unsafe_memory;
}
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static ALWAYS_INLINE KWorkerTaskManager &GetWorkerTaskManager(KWorkerTaskManager::WorkerType type) {
MESOSPHERE_ASSERT(type <= KWorkerTaskManager::WorkerType_Count);
return s_worker_task_managers[type];
}
};
}