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
11 * Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
13 * Derived from "arch/i386/mm/init.c"
14 * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version
19 * 2 of the License, or (at your option) any later version.
22 #include <asm/tlbflush.h>
25 extern void mapin_ram(void);
26 extern int map_page(unsigned long va, phys_addr_t pa, int flags);
27 extern void setbat(int index, unsigned long virt, unsigned long phys,
28 unsigned int size, int flags);
29 extern void reserve_phys_mem(unsigned long start, unsigned long size);
30 extern void settlbcam(int index, unsigned long virt, phys_addr_t phys,
31 unsigned int size, int flags, unsigned int pid);
32 extern void invalidate_tlbcam_entry(int index);
34 extern int __map_without_bats;
35 extern unsigned long ioremap_base;
36 extern unsigned long ioremap_bot;
37 extern unsigned int rtas_data, rtas_size;
39 extern unsigned long total_memory;
40 extern unsigned long total_lowmem;
41 extern int mem_init_done;
43 extern PTE *Hash, *Hash_end;
44 extern unsigned long Hash_size, Hash_mask;
46 extern unsigned int num_tlbcam_entries;
48 /* ...and now those things that may be slightly different between processor
49 * architectures. -- Dan
51 #if defined(CONFIG_8xx)
52 #define flush_HPTE(X, va, pg) _tlbie(va)
53 #define MMU_init_hw() do { } while(0)
54 #define mmu_mapin_ram() (0UL)
56 #elif defined(CONFIG_4xx)
57 #define flush_HPTE(X, va, pg) _tlbie(va)
58 extern void MMU_init_hw(void);
59 extern unsigned long mmu_mapin_ram(void);
61 #elif defined(CONFIG_FSL_BOOKE)
62 #define flush_HPTE(X, va, pg) _tlbie(va)
63 extern void MMU_init_hw(void);
64 extern unsigned long mmu_mapin_ram(void);
65 extern void adjust_total_lowmem(void);
68 /* anything except 4xx or 8xx */
69 extern void MMU_init_hw(void);
70 extern unsigned long mmu_mapin_ram(void);
72 /* Be careful....this needs to be updated if we ever encounter 603 SMPs,
73 * which includes all new 82xx processors. We need tlbie/tlbsync here
74 * in that case (I think). -- Dan.
76 static inline void flush_HPTE(unsigned context, unsigned long va,
80 cpu_has_feature(CPU_FTR_HPTE_TABLE))
81 flush_hash_pages(0, va, pdval, 1);