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gerrit-public.fairphone.software / kernel / msm-4.9 / 1f69b6af9171f50135cce8023c84d82fbf42a8f5 / . / arch / sh / include / asm / mmu.h
blob: 5025e12b786468ebe32cedaee0bfb21a97afd025 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef __MMU_H
2#define __MMU_H
3
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]4/*
5 * Privileged Space Mapping Buffer (PMB) definitions
6 */
7#define PMB_PASCR 0xff000070
8#define PMB_IRMCR 0xff000078
9
Matt Fleming1f69b6a2009-10-06 21:22:25 +0000[diff] [blame^]10#define PASCR_SE 0x80000000
11
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]12#define PMB_ADDR 0xf6100000
13#define PMB_DATA 0xf7100000
14#define PMB_ENTRY_MAX 16
15#define PMB_E_MASK 0x0000000f
16#define PMB_E_SHIFT 8
17
18#define PMB_SZ_16M 0x00000000
19#define PMB_SZ_64M 0x00000010
20#define PMB_SZ_128M 0x00000080
21#define PMB_SZ_512M 0x00000090
22#define PMB_SZ_MASK PMB_SZ_512M
23#define PMB_C 0x00000008
24#define PMB_WT 0x00000001
25#define PMB_UB 0x00000200
26#define PMB_V 0x00000100
27
28#define PMB_NO_ENTRY (-1)
29
Francesco VIRLINZI3b4df712009-03-24 13:30:01 +0000[diff] [blame]30#ifndef __ASSEMBLY__
31
32/* Default "unsigned long" context */
33typedef unsigned long mm_context_id_t[NR_CPUS];
34
35typedef struct {
36#ifdef CONFIG_MMU
37 mm_context_id_t id;
38 void *vdso;
39#else
40 unsigned long end_brk;
41#endif
42#ifdef CONFIG_BINFMT_ELF_FDPIC
43 unsigned long exec_fdpic_loadmap;
44 unsigned long interp_fdpic_loadmap;
45#endif
46} mm_context_t;
47
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]48struct pmb_entry;
49
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]50struct pmb_entry {
51 unsigned long vpn;
52 unsigned long ppn;
53 unsigned long flags;
54
55 /*
56 * 0 .. NR_PMB_ENTRIES for specific entry selection, or
57 * PMB_NO_ENTRY to search for a free one
58 */
59 int entry;
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]60
61 struct pmb_entry *next;
62 /* Adjacent entry link for contiguous multi-entry mappings */
63 struct pmb_entry *link;
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]64};
65
66/* arch/sh/mm/pmb.c */
67int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
68 unsigned long flags, int *entry);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]69int set_pmb_entry(struct pmb_entry *pmbe);
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]70void clear_pmb_entry(struct pmb_entry *pmbe);
71struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
72 unsigned long flags);
73void pmb_free(struct pmb_entry *pmbe);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]74long pmb_remap(unsigned long virt, unsigned long phys,
75 unsigned long size, unsigned long flags);
76void pmb_unmap(unsigned long addr);
Francesco VIRLINZI3b4df712009-03-24 13:30:01 +0000[diff] [blame]77#endif /* __ASSEMBLY__ */
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]78
79#endif /* __MMU_H */