#ifndef _MM_VIRT_H
#define _MM_VIRT_H
+// NOTES:
+// - 1PD is 0x400000
// - Memory Layout
#define MM_USER_MIN 0x00200000
#define USER_STACK_TOP 0x00800000
#define USER_LIB_MAX 0xBC000000
#define MM_USER_MAX 0xBC000000 // Top load address for user libraries
-#define MM_PPD_MIN 0xBC000000 // Per-Process Data
-#define MM_PPD_VFS 0xBC000000 //
-#define MM_PPD_CFG 0xBFFFF000 //
+#define MM_PPD_MIN 0xBC000000 // Per-Process Data base
+#define MM_PPD_HANDLES 0xBC000000 // - VFS Handles (Practically unlimited)
+#define MM_PPD_MMAP 0xBD000000 // - MMap Entries (24b each = 0x2AAAA max)
+#define MM_PPD_UNALLOC 0xBE000000 //
+#define MM_PPD_CFG 0xBFFFF000 // - Per-process config entries
#define MM_PPD_MAX 0xC0000000 //
#define MM_KHEAP_BASE 0xC0400000 // C+4MiB
#define MM_KERNEL_VFS 0xCF000000 //
#define MM_KUSER_CODE 0xCFFF0000 // 16 Pages
#define MM_MODULE_MIN 0xD0000000 // Lowest Module Address
-#define MM_MODULE_MAX 0xF0000000 // 512 MiB
+#define MM_MODULE_MAX 0xE0000000 // 128 MiB
+
+// Page Info (Which VFS node owns each physical page)
+// 2^32/2^12*16
+// = 2^24 = 16 MiB = 0x4000000
+// 256 items per page
+#define MM_PAGENODE_BASE 0xE0000000
+
+// Needs (2^32/2^12*4 bytes)
+// - 2^22 bytes max = 4 MiB = 0x1000000
+// 1024 items per page
+#define MM_REFCOUNT_BASE 0xE4000000
// === FUNCTIONS ===
extern void MM_FinishVirtualInit(void);
extern void MM_SetCR3(Uint CR3);
-extern tPAddr MM_Allocate(tVAddr VAddr);
-extern void MM_Deallocate(tVAddr VAddr);
-extern int MM_Map(tVAddr VAddr, tPAddr PAddr);
extern tPAddr MM_Clone(void);
extern tVAddr MM_NewKStack(void);
-extern tVAddr MM_NewWorkerStack(void);
+extern tVAddr MM_NewWorkerStack(Uint *InitialStack, size_t StackSize);
#endif