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gerrit-public.fairphone.software / kernel / msm-5.4 / 3bc24a1a5441ef621daf737ec93b0a10e8999d59 / . / include / asm-sh / mmu.h
blob: fdcb93bc6d11d3126093409580f9243e7d1b1e8a [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
Yoshinori Satoe96636c2006-09-27 17:21:02 +0900[diff] [blame]12 struct vm_list_struct *vmlist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]13 unsigned long end_brk;
Paul Mundtaec5e0e2006-12-25 09:51:47 +0900[diff] [blame]14#endif
Paul Mundt3bc24a12008-05-19 13:40:12 +0900[diff] [blame^]15#ifdef CONFIG_BINFMT_ELF_FDPIC
16 unsigned long exec_fdpic_loadmap;
17 unsigned long interp_fdpic_loadmap;
18#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]19} mm_context_t;
20
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]21/*
22 * Privileged Space Mapping Buffer (PMB) definitions
23 */
24#define PMB_PASCR 0xff000070
25#define PMB_IRMCR 0xff000078
26
27#define PMB_ADDR 0xf6100000
28#define PMB_DATA 0xf7100000
29#define PMB_ENTRY_MAX 16
30#define PMB_E_MASK 0x0000000f
31#define PMB_E_SHIFT 8
32
33#define PMB_SZ_16M 0x00000000
34#define PMB_SZ_64M 0x00000010
35#define PMB_SZ_128M 0x00000080
36#define PMB_SZ_512M 0x00000090
37#define PMB_SZ_MASK PMB_SZ_512M
38#define PMB_C 0x00000008
39#define PMB_WT 0x00000001
40#define PMB_UB 0x00000200
41#define PMB_V 0x00000100
42
43#define PMB_NO_ENTRY (-1)
44
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]45struct pmb_entry;
46
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]47struct pmb_entry {
48 unsigned long vpn;
49 unsigned long ppn;
50 unsigned long flags;
51
52 /*
53 * 0 .. NR_PMB_ENTRIES for specific entry selection, or
54 * PMB_NO_ENTRY to search for a free one
55 */
56 int entry;
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]57
58 struct pmb_entry *next;
59 /* Adjacent entry link for contiguous multi-entry mappings */
60 struct pmb_entry *link;
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]61};
62
63/* arch/sh/mm/pmb.c */
64int __set_pmb_entry(unsigned long vpn, unsigned long ppn,
65 unsigned long flags, int *entry);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]66int set_pmb_entry(struct pmb_entry *pmbe);
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]67void clear_pmb_entry(struct pmb_entry *pmbe);
68struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
69 unsigned long flags);
70void pmb_free(struct pmb_entry *pmbe);
Paul Mundtd7cdc9e2006-09-27 15:16:42 +0900[diff] [blame]71long pmb_remap(unsigned long virt, unsigned long phys,
72 unsigned long size, unsigned long flags);
73void pmb_unmap(unsigned long addr);
Paul Mundt0c7b1df2006-09-27 15:08:07 +0900[diff] [blame]74
75#endif /* __MMU_H */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]76