mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-15 03:27:49 +01:00
164 lines
9.4 KiB
C++
164 lines
9.4 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere.hpp>
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namespace ams::kern {
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namespace {
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KDynamicPageManager g_resource_manager_page_manager;
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template<typename T>
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ALWAYS_INLINE void PrintMemoryRegion(const char *prefix, const T &extents) {
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static_assert(std::is_same<decltype(extents.GetAddress()), uintptr_t>::value);
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static_assert(std::is_same<decltype(extents.GetLastAddress()), uintptr_t>::value);
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if constexpr (std::is_same<uintptr_t, unsigned int>::value) {
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MESOSPHERE_LOG("%-24s0x%08x - 0x%08x\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else if constexpr (std::is_same<uintptr_t, unsigned long>::value) {
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MESOSPHERE_LOG("%-24s0x%016lx - 0x%016lx\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else if constexpr (std::is_same<uintptr_t, unsigned long long>::value) {
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MESOSPHERE_LOG("%-24s0x%016llx - 0x%016llx\n", prefix, extents.GetAddress(), extents.GetLastAddress());
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} else {
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static_assert(!std::is_same<T, T>::value, "Unknown uintptr_t width!");
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}
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}
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}
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void Kernel::InitializeCoreLocalRegion(s32 core_id) {
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/* Construct the core local region object in place. */
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KCoreLocalContext *clc = GetPointer<KCoreLocalContext>(KMemoryLayout::GetCoreLocalRegionAddress());
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new (clc) KCoreLocalContext;
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/* Set the core local region address into the global register. */
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cpu::SetCoreLocalRegionAddress(reinterpret_cast<uintptr_t>(clc));
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/* Initialize current context. */
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clc->current.current_thread = nullptr;
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clc->current.current_process = nullptr;
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clc->current.scheduler = std::addressof(clc->scheduler);
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clc->current.interrupt_task_manager = std::addressof(clc->interrupt_task_manager);
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clc->current.core_id = core_id;
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clc->current.exception_stack_top = GetVoidPointer(KMemoryLayout::GetExceptionStackTopAddress(core_id) - sizeof(KThread::StackParameters));
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/* Clear debugging counters. */
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clc->num_sw_interrupts = 0;
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clc->num_hw_interrupts = 0;
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clc->num_svc = 0;
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clc->num_process_switches = 0;
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clc->num_thread_switches = 0;
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clc->num_fpu_switches = 0;
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for (size_t i = 0; i < util::size(clc->perf_counters); i++) {
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clc->perf_counters[i] = 0;
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}
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}
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void Kernel::InitializeMainAndIdleThreads(s32 core_id) {
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/* This function wants to setup the main thread and the idle thread. */
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KThread *main_thread = std::addressof(Kernel::GetMainThread(core_id));
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void *main_thread_stack = GetVoidPointer(KMemoryLayout::GetMainStackTopAddress(core_id));
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KThread *idle_thread = std::addressof(Kernel::GetIdleThread(core_id));
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void *idle_thread_stack = GetVoidPointer(KMemoryLayout::GetIdleStackTopAddress(core_id));
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KAutoObject::Create(main_thread);
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KAutoObject::Create(idle_thread);
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main_thread->Initialize(nullptr, 0, main_thread_stack, 0, KThread::MainThreadPriority, core_id, nullptr, KThread::ThreadType_Main);
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idle_thread->Initialize(nullptr, 0, idle_thread_stack, 0, KThread::IdleThreadPriority, core_id, nullptr, KThread::ThreadType_Main);
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/* Set the current thread to be the main thread, and we have no processes running yet. */
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SetCurrentThread(main_thread);
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SetCurrentProcess(nullptr);
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/* Initialize the interrupt manager, hardware timer, and scheduler */
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GetInterruptManager().Initialize(core_id);
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GetHardwareTimer().Initialize(core_id);
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GetScheduler().Initialize(idle_thread);
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}
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void Kernel::InitializeResourceManagers(KVirtualAddress address, size_t size) {
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/* Ensure that the buffer is suitable for our use. */
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//const size_t app_size = ApplicationMemoryBlockSlabHeapSize * sizeof(KMemoryBlock);
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//const size_t sys_size = SystemMemoryBlockSlabHeapSize * sizeof(KMemoryBlock);
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//const size_t info_size = BlockInfoSlabHeapSize * sizeof(KBlockInfo);
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//const size_t fixed_size = util::AlignUp(app_size + sys_size + info_size, PageSize);
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MESOSPHERE_ABORT_UNLESS(util::IsAligned(GetInteger(address), PageSize));
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MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, PageSize));
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/* Ensure that we have space for our reference counts. */
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const size_t rc_size = util::AlignUp(KPageTableManager::CalculateReferenceCountSize(size), PageSize);
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MESOSPHERE_ABORT_UNLESS(rc_size < size);
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size -= rc_size;
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/* Initialize the resource managers' shared page manager. */
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g_resource_manager_page_manager.Initialize(address, size);
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/* Initialize the fixed-size slabheaps. */
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s_app_memory_block_manager.Initialize(std::addressof(g_resource_manager_page_manager), ApplicationMemoryBlockSlabHeapSize);
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s_sys_memory_block_manager.Initialize(std::addressof(g_resource_manager_page_manager), SystemMemoryBlockSlabHeapSize);
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s_block_info_manager.Initialize(std::addressof(g_resource_manager_page_manager), BlockInfoSlabHeapSize);
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/* Reserve all remaining pages for the page table manager. */
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const size_t num_pt_pages = g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed();
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s_page_table_manager.Initialize(std::addressof(g_resource_manager_page_manager), num_pt_pages, GetPointer<KPageTableManager::RefCount>(address + size));
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}
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void Kernel::PrintLayout() {
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const auto target_fw = kern::GetTargetFirmware();
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/* Print out the kernel version. */
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MESOSPHERE_LOG("Horizon Kernel (Mesosphere)\n");
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MESOSPHERE_LOG("Built: %s %s\n", __DATE__, __TIME__);
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MESOSPHERE_LOG("Atmosphere version: %d.%d.%d-%s\n", ATMOSPHERE_RELEASE_VERSION, ATMOSPHERE_GIT_REVISION);
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MESOSPHERE_LOG("Target Firmware: %d.%d.%d\n", (target_fw >> 24) & 0xFF, (target_fw >> 16) & 0xFF, (target_fw >> 8) & 0xFF);
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MESOSPHERE_LOG("Supported OS version: %d.%d.%d\n", ATMOSPHERE_SUPPORTED_HOS_VERSION_MAJOR, ATMOSPHERE_SUPPORTED_HOS_VERSION_MINOR, ATMOSPHERE_SUPPORTED_HOS_VERSION_MICRO);
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MESOSPHERE_LOG("\n");
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/* Print relative memory usage. */
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const auto [total, kernel] = KMemoryLayout::GetTotalAndKernelMemorySizes();
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MESOSPHERE_LOG("Kernel Memory Usage: %zu/%zu MB\n", util::AlignUp(kernel, 1_MB) / 1_MB, util::AlignUp(total, 1_MB) / 1_MB);
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MESOSPHERE_LOG("\n");
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/* Print out important memory layout regions. */
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MESOSPHERE_LOG("Virtual Memory Layout\n");
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PrintMemoryRegion(" KernelRegion", KMemoryLayout::GetKernelRegionExtents());
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PrintMemoryRegion(" Code", KMemoryLayout::GetKernelCodeRegionExtents());
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PrintMemoryRegion(" Stack", KMemoryLayout::GetKernelStackRegionExtents());
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PrintMemoryRegion(" Misc", KMemoryLayout::GetKernelMiscRegionExtents());
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PrintMemoryRegion(" Slab", KMemoryLayout::GetKernelSlabRegionExtents());
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PrintMemoryRegion(" CoreLocalRegion", KMemoryLayout::GetCoreLocalRegion());
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PrintMemoryRegion(" LinearRegion", KMemoryLayout::GetLinearRegionExtents());
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MESOSPHERE_LOG("\n");
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MESOSPHERE_LOG("Physical Memory Layout\n");
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PrintMemoryRegion(" LinearRegion", KMemoryLayout::GetLinearRegionPhysicalExtents());
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PrintMemoryRegion(" CarveoutRegion", KMemoryLayout::GetCarveoutRegionExtents());
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MESOSPHERE_LOG("\n");
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PrintMemoryRegion(" KernelRegion", KMemoryLayout::GetKernelRegionPhysicalExtents());
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PrintMemoryRegion(" Code", KMemoryLayout::GetKernelCodeRegionPhysicalExtents());
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PrintMemoryRegion(" Slab", KMemoryLayout::GetKernelSlabRegionPhysicalExtents());
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PrintMemoryRegion(" PageTableHeap", KMemoryLayout::GetKernelPageTableHeapRegionPhysicalExtents());
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PrintMemoryRegion(" InitPageTable", KMemoryLayout::GetKernelInitPageTableRegionPhysicalExtents());
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PrintMemoryRegion(" MemoryPoolRegion", KMemoryLayout::GetKernelPoolPartitionRegionPhysicalExtents());
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PrintMemoryRegion(" System", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents());
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PrintMemoryRegion(" Internal", KMemoryLayout::GetKernelMetadataPoolRegionPhysicalExtents());
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PrintMemoryRegion(" SystemUnsafe", KMemoryLayout::GetKernelSystemNonSecurePoolRegionPhysicalExtents());
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PrintMemoryRegion(" Applet", KMemoryLayout::GetKernelAppletPoolRegionPhysicalExtents());
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PrintMemoryRegion(" Application", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents());
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MESOSPHERE_LOG("\n");
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}
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}
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