4 #if !defined(CONFIG_MMU)
7 struct vm_list_struct *vmlist;
13 /* Default "unsigned long" context */
14 typedef unsigned long mm_context_t;
16 #endif /* CONFIG_MMU */
19 * Privileged Space Mapping Buffer (PMB) definitions
21 #define PMB_PASCR 0xff000070
22 #define PMB_IRMCR 0xff000078
24 #define PMB_ADDR 0xf6100000
25 #define PMB_DATA 0xf7100000
26 #define PMB_ENTRY_MAX 16
27 #define PMB_E_MASK 0x0000000f
30 #define PMB_SZ_16M 0x00000000
31 #define PMB_SZ_64M 0x00000010
32 #define PMB_SZ_128M 0x00000080
33 #define PMB_SZ_512M 0x00000090
34 #define PMB_SZ_MASK PMB_SZ_512M
35 #define PMB_C 0x00000008
36 #define PMB_WT 0x00000001
37 #define PMB_UB 0x00000200
38 #define PMB_V 0x00000100
40 #define PMB_NO_ENTRY (-1)
50 * 0 .. NR_PMB_ENTRIES for specific entry selection, or
51 * PMB_NO_ENTRY to search for a free one
55 struct pmb_entry *next;
56 /* Adjacent entry link for contiguous multi-entry mappings */
57 struct pmb_entry *link;
60 /* arch/sh/mm/pmb.c */
61 int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
62 unsigned long flags, int *entry);
63 int set_pmb_entry(struct pmb_entry *pmbe);
64 void clear_pmb_entry(struct pmb_entry *pmbe);
65 struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
67 void pmb_free(struct pmb_entry *pmbe);
68 long pmb_remap(unsigned long virt, unsigned long phys,
69 unsigned long size, unsigned long flags);
70 void pmb_unmap(unsigned long addr);