2 * Declarations of procedures and variables shared between files
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.
24 #ifdef CONFIG_PPC_MMU_NOHASH
25 #include <asm/trace.h>
28 * On 40x and 8xx, we directly inline tlbia and tlbivax
30 #if defined(CONFIG_40x) || defined(CONFIG_PPC_8xx)
31 static inline void _tlbil_all(void)
33 asm volatile ("sync; tlbia; isync" : : : "memory");
34 trace_tlbia(MMU_NO_CONTEXT);
36 static inline void _tlbil_pid(unsigned int pid)
38 asm volatile ("sync; tlbia; isync" : : : "memory");
41 #define _tlbil_pid_noind(pid) _tlbil_pid(pid)
43 #else /* CONFIG_40x || CONFIG_PPC_8xx */
44 extern void _tlbil_all(void);
45 extern void _tlbil_pid(unsigned int pid);
46 #ifdef CONFIG_PPC_BOOK3E
47 extern void _tlbil_pid_noind(unsigned int pid);
49 #define _tlbil_pid_noind(pid) _tlbil_pid(pid)
51 #endif /* !(CONFIG_40x || CONFIG_PPC_8xx) */
54 * On 8xx, we directly inline tlbie, on others, it's extern
57 static inline void _tlbil_va(unsigned long address, unsigned int pid,
58 unsigned int tsize, unsigned int ind)
60 asm volatile ("tlbie %0; sync" : : "r" (address) : "memory");
61 trace_tlbie(0, 0, address, pid, 0, 0, 0);
63 #elif defined(CONFIG_PPC_BOOK3E)
64 extern void _tlbil_va(unsigned long address, unsigned int pid,
65 unsigned int tsize, unsigned int ind);
67 extern void __tlbil_va(unsigned long address, unsigned int pid);
68 static inline void _tlbil_va(unsigned long address, unsigned int pid,
69 unsigned int tsize, unsigned int ind)
71 __tlbil_va(address, pid);
73 #endif /* CONFIG_PPC_8xx */
75 #if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_PPC_47x)
76 extern void _tlbivax_bcast(unsigned long address, unsigned int pid,
77 unsigned int tsize, unsigned int ind);
79 static inline void _tlbivax_bcast(unsigned long address, unsigned int pid,
80 unsigned int tsize, unsigned int ind)
86 #else /* CONFIG_PPC_MMU_NOHASH */
88 extern void hash_preload(struct mm_struct *mm, unsigned long ea,
89 bool is_exec, unsigned long trap);
92 extern void _tlbie(unsigned long address);
93 extern void _tlbia(void);
95 #endif /* CONFIG_PPC_MMU_NOHASH */
99 extern void mapin_ram(void);
100 extern void setbat(int index, unsigned long virt, phys_addr_t phys,
101 unsigned int size, pgprot_t prot);
103 extern int __map_without_bats;
104 extern unsigned int rtas_data, rtas_size;
107 extern struct hash_pte *Hash, *Hash_end;
108 extern unsigned long Hash_size, Hash_mask;
110 #endif /* CONFIG_PPC32 */
112 extern unsigned long ioremap_bot;
113 extern unsigned long __max_low_memory;
114 extern phys_addr_t __initial_memory_limit_addr;
115 extern phys_addr_t total_memory;
116 extern phys_addr_t total_lowmem;
117 extern phys_addr_t memstart_addr;
118 extern phys_addr_t lowmem_end_addr;
121 extern unsigned long wii_hole_start;
122 extern unsigned long wii_hole_size;
124 extern unsigned long wii_mmu_mapin_mem2(unsigned long top);
125 extern void wii_memory_fixups(void);
128 /* ...and now those things that may be slightly different between processor
129 * architectures. -- Dan
132 extern void MMU_init_hw(void);
133 extern unsigned long mmu_mapin_ram(unsigned long top);
136 #ifdef CONFIG_PPC_FSL_BOOK3E
137 extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx,
139 extern unsigned long calc_cam_sz(unsigned long ram, unsigned long virt,
142 extern void adjust_total_lowmem(void);
143 extern int switch_to_as1(void);
144 extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu);
146 extern void loadcam_entry(unsigned int index);
147 extern void loadcam_multi(int first_idx, int num, int tmp_idx);
158 #if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx)
160 /* FSL_BOOKE have TLBCAM */
162 phys_addr_t v_block_mapped(unsigned long va);
163 unsigned long p_block_mapped(phys_addr_t pa);
165 static inline phys_addr_t v_block_mapped(unsigned long va) { return 0; }
166 static inline unsigned long p_block_mapped(phys_addr_t pa) { return 0; }