Add locks from time to time.

[netwatch.git] / aseg-paging / vm_flags.h

diff --git a/aseg-paging/vm_flags.h b/aseg-paging/vm_flags.h
index d89c9a89879717366dfb079ff447cf05b9606329..f003516cf267acb6bd85b118edf8f54aa411142a 100644 (file)
--- a/aseg-paging/vm_flags.h
+++ b/aseg-paging/vm_flags.h
@@ -8,6 +8,13 @@
 #ifndef _VM_FLAGS_H
 #define _VM_FLAGS_H
 
+#define PTE_FOR(x)      (((unsigned int)(x) >> 12) & 0x3FF)
+#define PDE_FOR(x)      ((unsigned int)(x) >> 22)
+#define ADDR_12_MASK(x)        ((unsigned int)(x) & ~((1 << 12) - 1))
+#define ADDR_22_MASK(x)        ((unsigned int)(x) & ~((1 << 22) - 1))
+#define LOWER_12(x)    ((unsigned int)(x) & ((1 << 12) - 1))
+#define LOWER_22(x)    ((unsigned int)(x) & ((1 << 22) - 1))
+
 #define PDE_4M_ADDR_SHIFT       22
 #define PTE_4K_ADDR_SHIFT       12
 #define PDE_TABLE_ADDR_SHIFT    12