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kern: add minimum alignment support to KMemoryManager

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Michael Scire 2024-10-09 21:36:49 -07:00 • committed by SciresM
parent ff38a32a9b
commit 912b84c4e3
7 changed files with 58 additions and 16 deletions
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4
libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp
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@ -24,4 +24,8 @@ namespace ams::kern {
constexpr inline size_t MainMemorySize = 4_GB;
constexpr inline size_t MainMemorySizeMax = 8_GB;
constexpr inline u32 MinimumMemoryManagerAlignmentShifts[] = {
0, 0, 0, 0
};
}

9
libraries/libmesosphere/include/mesosphere/kern_k_memory_manager.hpp
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@ -164,6 +164,7 @@ namespace ams::kern {
size_t m_num_managers;
u64 m_optimized_process_ids[Pool_Count];
bool m_has_optimized_process[Pool_Count];
s32 m_min_heap_indexes[Pool_Count];
private:
Impl &GetManager(KPhysicalAddress address) {
return m_managers[KMemoryLayout::GetPhysicalLinearRegion(address).GetAttributes()];
@ -188,12 +189,12 @@ namespace ams::kern {
Result AllocatePageGroupImpl(KPageGroup *out, size_t num_pages, Pool pool, Direction dir, bool unoptimized, bool random, s32 min_heap_index);
public:
KMemoryManager()
: m_pool_locks(), m_pool_managers_head(), m_pool_managers_tail(), m_managers(), m_num_managers(), m_optimized_process_ids(), m_has_optimized_process()
: m_pool_locks(), m_pool_managers_head(), m_pool_managers_tail(), m_managers(), m_num_managers(), m_optimized_process_ids(), m_has_optimized_process(), m_min_heap_indexes()
{
/* ... */
}
NOINLINE void Initialize(KVirtualAddress management_region, size_t management_region_size);
NOINLINE void Initialize(KVirtualAddress management_region, size_t management_region_size, const u32 *min_align_shifts);
NOINLINE Result InitializeOptimizedMemory(u64 process_id, Pool pool);
NOINLINE void FinalizeOptimizedMemory(u64 process_id, Pool pool);
@ -299,6 +300,10 @@ namespace ams::kern {
manager->DumpFreeList();
}
}
size_t GetMinimumAlignment(Pool pool) {
return KPageHeap::GetBlockSize(m_min_heap_indexes[pool]);
}
public:
static size_t CalculateManagementOverheadSize(size_t region_size) {
return Impl::CalculateManagementOverheadSize(region_size);