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kern: change terminology metadata -> management

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Michael Scire 2020-08-25 16:12:14 -07:00 • committed by SciresM
parent 546e2de300
commit ce95af89ef
7 changed files with 133 additions and 115 deletions
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14
libraries/libmesosphere/include/mesosphere/kern_k_dynamic_page_manager.hpp
View file

@ -46,9 +46,9 @@ namespace ams::kern {
/* We need to have positive size. */
R_UNLESS(sz > 0, svc::ResultOutOfMemory());
/* Calculate metadata overhead. */
const size_t metadata_size = KPageBitmap::CalculateMetadataOverheadSize(sz / sizeof(PageBuffer));
const size_t allocatable_size = sz - metadata_size;
/* Calculate management overhead. */
const size_t management_size = KPageBitmap::CalculateManagementOverheadSize(sz / sizeof(PageBuffer));
const size_t allocatable_size = sz - management_size;
/* Set tracking fields. */
this->address = memory;
@ -56,12 +56,12 @@ namespace ams::kern {
this->count = allocatable_size / sizeof(PageBuffer);
R_UNLESS(this->count > 0, svc::ResultOutOfMemory());
/* Clear the metadata region. */
u64 *metadata_ptr = GetPointer<u64>(this->address + allocatable_size);
std::memset(metadata_ptr, 0, metadata_size);
/* Clear the management region. */
u64 *management_ptr = GetPointer<u64>(this->address + allocatable_size);
std::memset(management_ptr, 0, management_size);
/* Initialize the bitmap. */
this->page_bitmap.Initialize(metadata_ptr, this->count);
this->page_bitmap.Initialize(management_ptr, this->count);
/* Free the pages to the bitmap. */
std::memset(GetPointer<PageBuffer>(this->address), 0, this->count * sizeof(PageBuffer));

17
libraries/libmesosphere/include/mesosphere/kern_k_memory_manager.hpp
View file

@ -38,6 +38,7 @@ namespace ams::kern {
/* Aliases. */
Pool_Unsafe = Pool_Application,
Pool_Secure = Pool_System,
};
enum Direction {
@ -54,7 +55,7 @@ namespace ams::kern {
private:
using RefCount = u16;
public:
static size_t CalculateMetadataOverheadSize(size_t region_size);
static size_t CalculateManagementOverheadSize(size_t region_size);
static constexpr size_t CalculateOptimizedProcessOverheadSize(size_t region_size) {
return (util::AlignUp((region_size / PageSize), BITSIZEOF(u64)) / BITSIZEOF(u64)) * sizeof(u64);
@ -62,19 +63,19 @@ namespace ams::kern {
private:
KPageHeap heap;
RefCount *page_reference_counts;
KVirtualAddress metadata_region;
KVirtualAddress management_region;
Pool pool;
Impl *next;
Impl *prev;
public:
Impl() : heap(), page_reference_counts(), metadata_region(), pool(), next(), prev() { /* ... */ }
Impl() : heap(), page_reference_counts(), management_region(), pool(), next(), prev() { /* ... */ }
size_t Initialize(const KMemoryRegion *region, Pool pool, KVirtualAddress metadata_region, KVirtualAddress metadata_region_end);
size_t Initialize(const KMemoryRegion *region, Pool pool, KVirtualAddress management_region, KVirtualAddress management_region_end);
KVirtualAddress AllocateBlock(s32 index, bool random) { return this->heap.AllocateBlock(index, random); }
void Free(KVirtualAddress addr, size_t num_pages) { this->heap.Free(addr, num_pages); }
void InitializeOptimizedMemory() { std::memset(GetVoidPointer(this->metadata_region), 0, CalculateOptimizedProcessOverheadSize(this->heap.GetSize())); }
void InitializeOptimizedMemory() { std::memset(GetVoidPointer(this->management_region), 0, CalculateOptimizedProcessOverheadSize(this->heap.GetSize())); }
void TrackUnoptimizedAllocation(KVirtualAddress block, size_t num_pages);
void TrackOptimizedAllocation(KVirtualAddress block, size_t num_pages);
@ -172,7 +173,7 @@ namespace ams::kern {
/* ... */
}
NOINLINE void Initialize(KVirtualAddress metadata_region, size_t metadata_region_size);
NOINLINE void Initialize(KVirtualAddress management_region, size_t management_region_size);
NOINLINE Result InitializeOptimizedMemory(u64 process_id, Pool pool);
NOINLINE void FinalizeOptimizedMemory(u64 process_id, Pool pool);
@ -247,8 +248,8 @@ namespace ams::kern {
return total;
}
public:
static size_t CalculateMetadataOverheadSize(size_t region_size) {
return Impl::CalculateMetadataOverheadSize(region_size);
static size_t CalculateManagementOverheadSize(size_t region_size) {
return Impl::CalculateManagementOverheadSize(region_size);
}
static constexpr ALWAYS_INLINE u32 EncodeOption(Pool pool, Direction dir) {

2
libraries/libmesosphere/include/mesosphere/kern_k_page_bitmap.hpp
View file

@ -254,7 +254,7 @@ namespace ams::kern {
}
}
public:
static constexpr size_t CalculateMetadataOverheadSize(size_t region_size) {
static constexpr size_t CalculateManagementOverheadSize(size_t region_size) {
size_t overhead_bits = 0;
for (s32 depth = GetRequiredDepth(region_size) - 1; depth >= 0; depth--) {
region_size = util::AlignUp(region_size, BITSIZEOF(u64)) / BITSIZEOF(u64);

16
libraries/libmesosphere/include/mesosphere/kern_k_page_heap.hpp
View file

@ -115,11 +115,11 @@ namespace ams::kern {
return this->heap_address + (offset << this->GetShift());
}
public:
static constexpr size_t CalculateMetadataOverheadSize(size_t region_size, size_t cur_block_shift, size_t next_block_shift) {
static constexpr size_t CalculateManagementOverheadSize(size_t region_size, size_t cur_block_shift, size_t next_block_shift) {
const size_t cur_block_size = (u64(1) << cur_block_shift);
const size_t next_block_size = (u64(1) << next_block_shift);
const size_t align = (next_block_shift != 0) ? next_block_size : cur_block_size;
return KPageBitmap::CalculateMetadataOverheadSize((align * 2 + util::AlignUp(region_size, align)) / cur_block_size);
return KPageBitmap::CalculateManagementOverheadSize((align * 2 + util::AlignUp(region_size, align)) / cur_block_size);
}
};
private:
@ -129,7 +129,7 @@ namespace ams::kern {
size_t num_blocks;
Block blocks[NumMemoryBlockPageShifts];
private:
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress metadata_address, size_t metadata_size, const size_t *block_shifts, size_t num_block_shifts);
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size, const size_t *block_shifts, size_t num_block_shifts);
size_t GetNumFreePages() const;
void FreeBlock(KVirtualAddress block, s32 index);
@ -142,8 +142,8 @@ namespace ams::kern {
constexpr size_t GetPageOffset(KVirtualAddress block) const { return (block - this->GetAddress()) / PageSize; }
constexpr size_t GetPageOffsetToEnd(KVirtualAddress block) const { return (this->GetEndAddress() - block) / PageSize; }
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress metadata_address, size_t metadata_size) {
return Initialize(heap_address, heap_size, metadata_address, metadata_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size) {
return Initialize(heap_address, heap_size, management_address, management_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
}
size_t GetFreeSize() const { return this->GetNumFreePages() * PageSize; }
@ -155,10 +155,10 @@ namespace ams::kern {
KVirtualAddress AllocateBlock(s32 index, bool random);
void Free(KVirtualAddress addr, size_t num_pages);
private:
static size_t CalculateMetadataOverheadSize(size_t region_size, const size_t *block_shifts, size_t num_block_shifts);
static size_t CalculateManagementOverheadSize(size_t region_size, const size_t *block_shifts, size_t num_block_shifts);
public:
static size_t CalculateMetadataOverheadSize(size_t region_size) {
return CalculateMetadataOverheadSize(region_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
static size_t CalculateManagementOverheadSize(size_t region_size) {
return CalculateManagementOverheadSize(region_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
}
};