PERFORCE change 32736 for review

[Juli Mallett]

http://perforce.freebsd.org/chv.cgi?CH=32736

Change 32736 by jmallett at jmallett_dalek on 2003/06/07 04:27:25

	Test set and clear macros for PTE bits.

Affected files ...

.. //depot/projects/mips/sys/mips/include/pte.h#8 edit

Differences ...

==== //depot/projects/mips/sys/mips/include/pte.h#8 (text+ko) ====

@@ -120,4 +120,20 @@
  */
 #define	PG_PROT	(PG_RO)
 
+/*
+ * PTE management functions for bits defined above.
+ */
+#define	pte_clear(pte,bit)	((*(pte)) &= ~(bit))
+#define	pte_set(pte,bit)	((*(pte)) |= (bit))
+#define	pte_test(pte,bit)	(((*(pte)) & (bit)) == (bit))
+
+#define	pte_managed(pte)	(pte_test((pte), PG_M))
+#define	pte_valid(pte)		(pte_test((pte), PG_V))
+#define	pte_ro(pte)		(pte_test((pte), PG_RO))
+#define	pte_dirty(pte)		(pte_test((pte), PG_D))
+#define	pte_wired(pte)		(pte_test((pte), PG_W))
+
+#define	pte_wire(pte)		(pte_set((pte), PG_W))
+#define	pte_unwire(pte)		(pte_clear((pte), PG_W))
+
 #endif /* _MACHINE_PTE_H_ */