+
+/*
+ * Privileged Space Mapping Buffer (PMB) definitions
+ */
+#define PMB_PASCR 0xff000070
+#define PMB_IRMCR 0xff000078
+
+#define PMB_ADDR 0xf6100000
+#define PMB_DATA 0xf7100000
+#define PMB_ENTRY_MAX 16
+#define PMB_E_MASK 0x0000000f
+#define PMB_E_SHIFT 8
+
+#define PMB_SZ_16M 0x00000000
+#define PMB_SZ_64M 0x00000010
+#define PMB_SZ_128M 0x00000080
+#define PMB_SZ_512M 0x00000090
+#define PMB_SZ_MASK PMB_SZ_512M
+#define PMB_C 0x00000008
+#define PMB_WT 0x00000001
+#define PMB_UB 0x00000200
+#define PMB_V 0x00000100
+
+#define PMB_NO_ENTRY (-1)
+
+struct pmb_entry;
+
+struct pmb_entry {
+ unsigned long vpn;
+ unsigned long ppn;
+ unsigned long flags;
+
+ /*
+ * 0 .. NR_PMB_ENTRIES for specific entry selection, or
+ * PMB_NO_ENTRY to search for a free one
+ */
+ int entry;
+
+ struct pmb_entry *next;
+ /* Adjacent entry link for contiguous multi-entry mappings */
+ struct pmb_entry *link;
+};
+
+/* arch/sh/mm/pmb.c */
+int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
+ unsigned long flags, int *entry);
+int set_pmb_entry(struct pmb_entry *pmbe);
+void clear_pmb_entry(struct pmb_entry *pmbe);
+struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
+ unsigned long flags);
+void pmb_free(struct pmb_entry *pmbe);
+long pmb_remap(unsigned long virt, unsigned long phys,
+ unsigned long size, unsigned long flags);
+void pmb_unmap(unsigned long addr);
+
+#endif /* __MMU_H */