Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / powerpc / mm / mmu_decl.h
blobdd0a2589591dc0a66fffe8f7eb4d5b3a17944224
1 /*
2 * Declarations of procedures and variables shared between files
3 * in arch/ppc/mm/.
5 * Derived from arch/ppc/mm/init.c:
6 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
8 * Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
9 * and Cort Dougan (PReP) (cort@cs.nmt.edu)
10 * Copyright (C) 1996 Paul Mackerras
12 * Derived from "arch/i386/mm/init.c"
13 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
21 #include <linux/mm.h>
22 #include <asm/tlbflush.h>
23 #include <asm/mmu.h>
25 #ifdef CONFIG_PPC_MMU_NOHASH
28 * On 40x and 8xx, we directly inline tlbia and tlbivax
30 #if defined(CONFIG_40x) || defined(CONFIG_8xx)
31 static inline void _tlbil_all(void)
33 asm volatile ("sync; tlbia; isync" : : : "memory");
35 static inline void _tlbil_pid(unsigned int pid)
37 asm volatile ("sync; tlbia; isync" : : : "memory");
39 #define _tlbil_pid_noind(pid) _tlbil_pid(pid)
41 #else /* CONFIG_40x || CONFIG_8xx */
42 extern void _tlbil_all(void);
43 extern void _tlbil_pid(unsigned int pid);
44 #ifdef CONFIG_PPC_BOOK3E
45 extern void _tlbil_pid_noind(unsigned int pid);
46 #else
47 #define _tlbil_pid_noind(pid) _tlbil_pid(pid)
48 #endif
49 #endif /* !(CONFIG_40x || CONFIG_8xx) */
52 * On 8xx, we directly inline tlbie, on others, it's extern
54 #ifdef CONFIG_8xx
55 static inline void _tlbil_va(unsigned long address, unsigned int pid,
56 unsigned int tsize, unsigned int ind)
58 asm volatile ("tlbie %0; sync" : : "r" (address) : "memory");
60 #elif defined(CONFIG_PPC_BOOK3E)
61 extern void _tlbil_va(unsigned long address, unsigned int pid,
62 unsigned int tsize, unsigned int ind);
63 #else
64 extern void __tlbil_va(unsigned long address, unsigned int pid);
65 static inline void _tlbil_va(unsigned long address, unsigned int pid,
66 unsigned int tsize, unsigned int ind)
68 __tlbil_va(address, pid);
70 #endif /* CONIFG_8xx */
72 #if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_PPC_47x)
73 extern void _tlbivax_bcast(unsigned long address, unsigned int pid,
74 unsigned int tsize, unsigned int ind);
75 #else
76 static inline void _tlbivax_bcast(unsigned long address, unsigned int pid,
77 unsigned int tsize, unsigned int ind)
79 BUG();
81 #endif
83 #else /* CONFIG_PPC_MMU_NOHASH */
85 extern void hash_preload(struct mm_struct *mm, unsigned long ea,
86 unsigned long access, unsigned long trap);
89 extern void _tlbie(unsigned long address);
90 extern void _tlbia(void);
92 #endif /* CONFIG_PPC_MMU_NOHASH */
94 #ifdef CONFIG_PPC32
96 extern void mapin_ram(void);
97 extern int map_page(unsigned long va, phys_addr_t pa, int flags);
98 extern void setbat(int index, unsigned long virt, phys_addr_t phys,
99 unsigned int size, int flags);
101 extern int __map_without_bats;
102 extern int __allow_ioremap_reserved;
103 extern unsigned long ioremap_base;
104 extern unsigned int rtas_data, rtas_size;
106 struct hash_pte;
107 extern struct hash_pte *Hash, *Hash_end;
108 extern unsigned long Hash_size, Hash_mask;
110 #endif /* CONFIG_PPC32 */
112 #ifdef CONFIG_PPC64
113 extern int map_kernel_page(unsigned long ea, unsigned long pa, int flags);
114 #endif /* CONFIG_PPC64 */
116 extern unsigned long ioremap_bot;
117 extern unsigned long __max_low_memory;
118 extern phys_addr_t __initial_memory_limit_addr;
119 extern phys_addr_t total_memory;
120 extern phys_addr_t total_lowmem;
121 extern phys_addr_t memstart_addr;
122 extern phys_addr_t lowmem_end_addr;
124 #ifdef CONFIG_WII
125 extern unsigned long wii_hole_start;
126 extern unsigned long wii_hole_size;
128 extern unsigned long wii_mmu_mapin_mem2(unsigned long top);
129 extern void wii_memory_fixups(void);
130 #endif
132 /* ...and now those things that may be slightly different between processor
133 * architectures. -- Dan
135 #if defined(CONFIG_8xx)
136 #define MMU_init_hw() do { } while(0)
137 #define mmu_mapin_ram(top) (0UL)
139 #elif defined(CONFIG_4xx)
140 extern void MMU_init_hw(void);
141 extern unsigned long mmu_mapin_ram(unsigned long top);
143 #elif defined(CONFIG_PPC_FSL_BOOK3E)
144 extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx);
145 #ifdef CONFIG_PPC32
146 extern void MMU_init_hw(void);
147 extern unsigned long mmu_mapin_ram(unsigned long top);
148 extern void adjust_total_lowmem(void);
149 #endif
150 extern void loadcam_entry(unsigned int index);
152 struct tlbcam {
153 u32 MAS0;
154 u32 MAS1;
155 unsigned long MAS2;
156 u32 MAS3;
157 u32 MAS7;
159 #elif defined(CONFIG_PPC32)
160 /* anything 32-bit except 4xx or 8xx */
161 extern void MMU_init_hw(void);
162 extern unsigned long mmu_mapin_ram(unsigned long top);
163 #endif