First commit, Vystem v0.1

shelter/lib/include/memory/heap.h

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MPL-2.0
+#ifndef SH_LIB_HEAP_H
+#define SH_LIB_HEAP_H
+#include "memory/page.h"
+#include "memory/pba.h"
+#include "memory/pez/pez.h"
+#include "memory/pez/radix.h"
+#include "memory/slabs/slab_generic.h"
+#include "std/status.h"
+#include "std/type.h"
+// Heap structure
+typedef struct {
+  sh_pez_PHYSICAL_PLANE *phys_plane;
+  sh_pez_VIRTUAL_PLANE *virt_plane;
+  sh_page_PAGE_TABLE_POOL *kernel_ptp;
+  struct sh_slab_generic_SLAB_ALLOCATOR slabs_allocator[8];
+  sh_pba_PAGE_BLOCK_ALLOCATOR pba[8];
+  sh_radix_TREE alloc_size_tree;
+} sh_heap_KERNEL_HEAP;
+// Return default kernel heap
+sh_heap_KERNEL_HEAP *sh_heap_get_default_heap();
+// Load default kernel heap
+void sh_heap_load_default_heap(sh_heap_KERNEL_HEAP *heap);
+// Initialize heap structure, calling entity need to input manually all slabs allocator.
+SH_STATUS sh_heap_init_heap(sh_pez_PHYSICAL_PLANE *phys_plane,sh_pez_VIRTUAL_PLANE *virt_plane,sh_page_PAGE_TABLE_POOL *kernel_ptp,sh_heap_KERNEL_HEAP *kernel_heap);
+// Allocate a certain amount of pages from Pez physical backend
+SH_STATUS sh_heap_allocate_pages(sh_uint32 pages_count,sh_page_VIRTUAL_ADDRESS *address);
+// Free a allocated region of pages from the heap
+SH_STATUS sh_heap_free_pages(sh_page_VIRTUAL_ADDRESS va);
+// Allocate a certain object based on his size
+SH_STATUS sh_heap_allocate_object(sh_uint32 size_bytes,sh_page_VIRTUAL_ADDRESS *address);
+// Free a certain object based on his size
+SH_STATUS sh_heap_free_object(sh_page_VIRTUAL_ADDRESS va);
+#endif