[sir_richard] 48937: [NTOS]: Add definition for size of a page directory, and size of all page directories required per process (some architectures have more than one page directory per process/add...

Author: sir_richard
Date: Thu Sep 30 03:18:44 2010
New Revision: 48937

URL: http://svn.reactos.org/svn/reactos?rev=48937&view=rev
Log:
[NTOS]: Add definition for size of a page directory, and size of all page directories required per process (some architectures have more than one page directory per process/address space).

Modified:
    trunk/reactos/ntoskrnl/mm/ARM3/miarm.h

Modified: trunk/reactos/ntoskrnl/mm/ARM3/miarm.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/miarm.h?re...
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] Thu Sep 30 03:18:44 2010
@@ -62,11 +62,18 @@
 /* Size of a page table */
 #define PT_SIZE  (PTE_COUNT * sizeof(MMPTE))

+/* Size of a page directory */
+#define PD_SIZE  (PDE_COUNT * sizeof(MMPDE))
+
+/* Size of all page directories for a process */
+#define SYSTEM_PD_SIZE (PD_COUNT * PD_SIZE)
+
 /* Architecture specific count of PDEs in a directory, and count of PTEs in a PT */
 #ifdef _M_IX86
 #define PD_COUNT  1
 #define PDE_COUNT 1024
 #define PTE_COUNT 1024
+C_ASSERT(SYSTEM_PD_SIZE == PAGE_SIZE);
 #elif _M_ARM
 #define PD_COUNT  1
 #define PDE_COUNT 4096