Kernel - Slight reworks to timer code

[tpg/acess2.git] / Kernel / arch / x86 / include / mm_virt.h

diff --git a/Kernel/arch/x86/include/mm_virt.h b/Kernel/arch/x86/include/mm_virt.h
index 5e4712f..d84c965 100644 (file)
--- a/Kernel/arch/x86/include/mm_virt.h
+++ b/Kernel/arch/x86/include/mm_virt.h
@@ -5,6 +5,8 @@
 #ifndef _MM_VIRT_H
 #define _MM_VIRT_H
 
+// NOTES:
+// - 1PD is 0x400000
 
 // - Memory Layout
 #define        MM_USER_MIN     0x00200000
@@ -12,9 +14,11 @@
 #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
@@ -22,16 +26,28 @@
 #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
+
+#define MM_KERNEL_STACKS       0xF0000000
+#define        MM_KERNEL_STACK_SIZE    0x00008000
+#define MM_KERNEL_STACKS_END   0xFC000000
 
 // === 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 tPAddr  MM_Clone(int bCloneUser);
 extern tVAddr  MM_NewKStack(void);
-extern tVAddr  MM_NewWorkerStack(void);
+extern tVAddr  MM_NewWorkerStack(Uint *InitialStack, size_t StackSize);
 
 #endif