Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-5.4 / 1c58b0b1a1412ceb6b25dad81bc537bf0fe6ad46 / . / arch / sh / include / asm / mmu.h
blob: 6c43625bb1a5ecbee71f8249546e297178ab8980 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef __MMU_H
2#define __MMU_H
3
Paul Mundtaec5e0e2006-12-25 09:51:47 +0900[diff] [blame]4/* Default "unsigned long" context */
5typedef unsigned long mm_context_id_t[NR_CPUS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]6
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]7typedef struct {
Paul Mundtaec5e0e2006-12-25 09:51:47 +0900[diff] [blame]8#ifdef CONFIG_MMU
9 mm_context_id_t id;
10 void *vdso;
11#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]12 unsigned long end_brk;
Paul Mundtaec5e0e2006-12-25 09:51:47 +0900[diff] [blame]13#endif
Paul Mundt3bc24a12008-05-19 13:40:12 +0900[diff] [blame]14#ifdef CONFIG_BINFMT_ELF_FDPIC
15 unsigned long exec_fdpic_loadmap;
16 unsigned long interp_fdpic_loadmap;
17#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]18} mm_context_t;
19
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]20/*
21 * Privileged Space Mapping Buffer (PMB) definitions
22 */
23#define PMB_PASCR 0xff000070
24#define PMB_IRMCR 0xff000078
25
26#define PMB_ADDR 0xf6100000
27#define PMB_DATA 0xf7100000
28#define PMB_ENTRY_MAX 16
29#define PMB_E_MASK 0x0000000f
30#define PMB_E_SHIFT 8
31
32#define PMB_SZ_16M 0x00000000
33#define PMB_SZ_64M 0x00000010
34#define PMB_SZ_128M 0x00000080
35#define PMB_SZ_512M 0x00000090
36#define PMB_SZ_MASK PMB_SZ_512M
37#define PMB_C 0x00000008
38#define PMB_WT 0x00000001
39#define PMB_UB 0x00000200
40#define PMB_V 0x00000100
41
42#define PMB_NO_ENTRY (-1)
43
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]44struct pmb_entry;
45
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]46struct pmb_entry {
47 unsigned long vpn;
48 unsigned long ppn;
49 unsigned long flags;
50
51 /*
52 * 0 .. NR_PMB_ENTRIES for specific entry selection, or
53 * PMB_NO_ENTRY to search for a free one
54 */
55 int entry;
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]56
57 struct pmb_entry *next;
58 /* Adjacent entry link for contiguous multi-entry mappings */
59 struct pmb_entry *link;
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]60};
61
62/* arch/sh/mm/pmb.c */
63int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
64 unsigned long flags, int *entry);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]65int set_pmb_entry(struct pmb_entry *pmbe);
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]66void clear_pmb_entry(struct pmb_entry *pmbe);
67struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
68 unsigned long flags);
69void pmb_free(struct pmb_entry *pmbe);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]70long pmb_remap(unsigned long virt, unsigned long phys,
71 unsigned long size, unsigned long flags);
72void pmb_unmap(unsigned long addr);
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]73
74#endif /* __MMU_H */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]75