4 #if !defined(CONFIG_MMU)
6 struct mm_rblock_struct {
12 struct mm_tblock_struct {
13 struct mm_rblock_struct *rblock;
14 struct mm_tblock_struct *next;
18 struct mm_tblock_struct tblock;
19 unsigned long end_brk;
24 /* Default "unsigned long" context */
25 typedef unsigned long mm_context_t;
27 #endif /* CONFIG_MMU */
30 * Privileged Space Mapping Buffer (PMB) definitions
32 #define PMB_PASCR 0xff000070
33 #define PMB_IRMCR 0xff000078
35 #define PMB_ADDR 0xf6100000
36 #define PMB_DATA 0xf7100000
37 #define PMB_ENTRY_MAX 16
38 #define PMB_E_MASK 0x0000000f
41 #define PMB_SZ_16M 0x00000000
42 #define PMB_SZ_64M 0x00000010
43 #define PMB_SZ_128M 0x00000080
44 #define PMB_SZ_512M 0x00000090
45 #define PMB_SZ_MASK PMB_SZ_512M
46 #define PMB_C 0x00000008
47 #define PMB_WT 0x00000001
48 #define PMB_UB 0x00000200
49 #define PMB_V 0x00000100
51 #define PMB_NO_ENTRY (-1)
61 * 0 .. NR_PMB_ENTRIES for specific entry selection, or
62 * PMB_NO_ENTRY to search for a free one
66 struct pmb_entry *next;
67 /* Adjacent entry link for contiguous multi-entry mappings */
68 struct pmb_entry *link;
71 /* arch/sh/mm/pmb.c */
72 int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
73 unsigned long flags, int *entry);
74 int set_pmb_entry(struct pmb_entry *pmbe);
75 void clear_pmb_entry(struct pmb_entry *pmbe);
76 struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
78 void pmb_free(struct pmb_entry *pmbe);
79 long pmb_remap(unsigned long virt, unsigned long phys,
80 unsigned long size, unsigned long flags);
81 void pmb_unmap(unsigned long addr);