Add pmap support for user mappings of multiple page sizes (super pages).

This supports all hardware page sizes (8K, 64K, 512K, 4MB), but only 8k
pages are actually used as of yet.

1 files changed, 29 insertions, 25 deletions

diff --git a/sys/sparc64/include/tte.h b/sys/sparc64/include/tte.h
index 13a445a..e86c722 100644
--- a/sys/sparc64/include/tte.h
+++ b/sys/sparc64/include/tte.h
@@ -52,27 +52,27 @@
 #define	TD_PA_MASK	((1UL << TD_PA_BITS) - 1)
 #define	TD_SOFT_MASK	((1UL << TD_SOFT_BITS) - 1)
 
-#define	TD_SIZE_SPREAD	(3)
+#define	TS_8K		(0UL)
+#define	TS_64K		(1UL)
+#define	TS_512K		(2UL)
+#define	TS_4M		(3UL)
 
-#define	TS_EXEC		(1UL << 4)
-#define	TS_REF		(1UL << 3)
-#define	TS_PV		(1UL << 2)
-#define	TS_W		(1UL << 1)
-#define	TS_WIRED	(1UL << 0)
+#define	TS_MIN		TS_8K
+#define	TS_MAX		TS_4M
 
 #define	TD_V		(1UL << 63)
-#define	TD_8K		(0UL << TD_SIZE_SHIFT)
-#define	TD_64K		(1UL << TD_SIZE_SHIFT)
-#define	TD_512K		(2UL << TD_SIZE_SHIFT)
-#define	TD_4M		(3UL << TD_SIZE_SHIFT)
+#define	TD_8K		(TS_8K << TD_SIZE_SHIFT)
+#define	TD_64K		(TS_64K << TD_SIZE_SHIFT)
+#define	TD_512K		(TS_512K << TD_SIZE_SHIFT)
+#define	TD_4M		(TS_4M << TD_SIZE_SHIFT)
 #define	TD_NFO		(1UL << 60)
 #define	TD_IE		(1UL << 59)
 #define	TD_PA(pa)	((pa) & (TD_PA_MASK << TD_PA_SHIFT))
-#define	TD_EXEC		(TS_EXEC << TD_SOFT_SHIFT)
-#define	TD_REF		(TS_REF << TD_SOFT_SHIFT)
-#define	TD_PV		(TS_PV << TD_SOFT_SHIFT)
-#define	TD_SW		(TS_W << TD_SOFT_SHIFT)
-#define	TD_WIRED	(TS_WIRED << TD_SOFT_SHIFT)
+#define	TD_EXEC		((1UL << 4) << TD_SOFT_SHIFT)
+#define	TD_REF		((1UL << 3) << TD_SOFT_SHIFT)
+#define	TD_PV		((1UL << 2) << TD_SOFT_SHIFT)
+#define	TD_SW		((1UL << 1) << TD_SOFT_SHIFT)
+#define	TD_WIRED	((1UL << 0) << TD_SOFT_SHIFT)
 #define	TD_L		(1UL << 6)
 #define	TD_CP		(1UL << 5)
 #define	TD_CV		(1UL << 4)
@@ -81,12 +81,17 @@
 #define	TD_W		(1UL << 1)
 #define	TD_G		(1UL << 0)
 
-#define	TV_VPN(va)	((va) >> PAGE_SHIFT)
+#define	TV_SIZE_BITS	(TD_SIZE_BITS)
+#define	TV_VPN(va, sz)	((((va) >> TTE_PAGE_SHIFT(sz)) << TV_SIZE_BITS) | sz)
+
+#define	TTE_SIZE_SPREAD	(3)
+#define	TTE_PAGE_SHIFT(sz) \
+	(PAGE_SHIFT + ((sz) * TTE_SIZE_SPREAD))
 
 #define	TTE_GET_SIZE(tp) \
 	(((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK)
 #define	TTE_GET_PAGE_SHIFT(tp) \
-	(PAGE_SHIFT + (TTE_GET_SIZE(tp) * TD_SIZE_SPREAD))
+	TTE_PAGE_SHIFT(TTE_GET_SIZE(tp))
 #define	TTE_GET_PAGE_SIZE(tp) \
 	(1 << TTE_GET_PAGE_SHIFT(tp))
 #define	TTE_GET_PAGE_MASK(tp) \
@@ -94,13 +99,17 @@
 
 #define	TTE_GET_PA(tp) \
 	((tp)->tte_data & (TD_PA_MASK << TD_PA_SHIFT))
+#define	TTE_GET_VPN(tp) \
+	((tp)->tte_vpn >> TV_SIZE_BITS)
 #define	TTE_GET_VA(tp) \
-	((tp)->tte_vpn << PAGE_SHIFT)
+	(TTE_GET_VPN(tp) << TTE_GET_PAGE_SHIFT(tp))
 #define	TTE_GET_PMAP(tp) \
 	((tp)->tte_pmap)
 #define	TTE_ZERO(tp) \
 	bzero(tp, sizeof(*tp))
 
+struct pmap;
+
 struct tte {
 	u_long	tte_vpn;
 	u_long	tte_data;
@@ -109,15 +118,10 @@ struct tte {
 };
 
 static __inline int
-tte_match_vpn(struct tte *tp, vm_offset_t vpn)
-{
-	return ((tp->tte_data & TD_V) != 0 && tp->tte_vpn == vpn);
-}
-
-static __inline int
 tte_match(struct tte *tp, vm_offset_t va)
 {
-	return (tte_match_vpn(tp, va >> PAGE_SHIFT));
+	return (((tp->tte_data & TD_V) != 0) &&
+	    (tp->tte_vpn == TV_VPN(va, TTE_GET_SIZE(tp))));
 }
 
 #endif /* !_MACHINE_TTE_H_ */