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kern: Update page bitmaps/alloc to reflect 10.0.0 changes

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This commit is contained in:
Michael Scire
2020-04-18 17:10:26 -07:00
parent 3da0cda4ae
commit 152a945561
18 changed files with 498 additions and 267 deletions
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30
libraries/libmesosphere/include/mesosphere/kern_k_dynamic_slab_heap.hpp
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@@ -18,29 +18,20 @@
#include <mesosphere/kern_k_slab_heap.hpp>
#include <mesosphere/kern_k_page_group.hpp>
#include <mesosphere/kern_k_memory_block.hpp>
#include <mesosphere/kern_k_dynamic_page_manager.hpp>
namespace ams::kern {
namespace impl {
class DynamicSlabHeapPage {
private:
u8 buffer[PageSize];
};
static_assert(sizeof(DynamicSlabHeapPage) == PageSize);
};
template<typename T>
class KDynamicSlabHeap {
NON_COPYABLE(KDynamicSlabHeap);
NON_MOVEABLE(KDynamicSlabHeap);
private:
using Impl = impl::KSlabHeapImpl;
using PageBuffer = impl::DynamicSlabHeapPage;
using PageBuffer = KDynamicPageManager::PageBuffer;
private:
Impl impl;
KDynamicSlabHeap<PageBuffer> *next_allocator;
KDynamicPageManager *page_allocator;
std::atomic<size_t> used;
std::atomic<size_t> peak;
std::atomic<size_t> count;
@@ -54,7 +45,7 @@ namespace ams::kern {
return std::addressof(this->impl);
}
public:
constexpr KDynamicSlabHeap() : impl(), next_allocator(), used(), peak(), count(), address(), size() { /* ... */ }
constexpr KDynamicSlabHeap() : impl(), page_allocator(), used(), peak(), count(), address(), size() { /* ... */ }
constexpr KVirtualAddress GetAddress() const { return this->address; }
constexpr size_t GetSize() const { return this->size; }
@@ -80,10 +71,10 @@ namespace ams::kern {
}
}
void Initialize(KDynamicSlabHeap<PageBuffer> *next) {
this->next_allocator = next;
this->address = next->GetAddress();
this->size = next->GetSize();
void Initialize(KDynamicPageManager *page_allocator) {
this->page_allocator = page_allocator;
this->address = this->page_allocator->GetAddress();
this->size = this->page_allocator->GetSize();
}
T *Allocate() {
@@ -91,8 +82,8 @@ namespace ams::kern {
/* If we fail to allocate, try to get a new page from our next allocator. */
if (AMS_UNLIKELY(allocated == nullptr)) {
if (this->next_allocator != nullptr) {
allocated = reinterpret_cast<T *>(this->next_allocator->Allocate());
if (this->page_allocator != nullptr) {
allocated = reinterpret_cast<T *>(this->page_allocator->Allocate());
if (allocated != nullptr) {
/* If we succeeded in getting a page, free the rest to our slab. */
for (size_t i = 1; i < sizeof(PageBuffer) / sizeof(T); i++) {
@@ -126,7 +117,6 @@ namespace ams::kern {
}
};
class KDynamicPageManager : public KDynamicSlabHeap<impl::DynamicSlabHeapPage>{};
class KBlockInfoManager : public KDynamicSlabHeap<KBlockInfo>{};
class KMemoryBlockSlabManager : public KDynamicSlabHeap<KMemoryBlock>{};