diff options
Diffstat (limited to 'arch/ppc/mm/mmu_decl.h')
| -rw-r--r-- | arch/ppc/mm/mmu_decl.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/ppc/mm/mmu_decl.h b/arch/ppc/mm/mmu_decl.h new file mode 100644 index 000000000000..ffcdb46997dc --- /dev/null +++ b/arch/ppc/mm/mmu_decl.h | |||
| @@ -0,0 +1,83 @@ | |||
| 1 | /* | ||
| 2 | * Declarations of procedures and variables shared between files | ||
| 3 | * in arch/ppc/mm/. | ||
| 4 | * | ||
| 5 | * Derived from arch/ppc/mm/init.c: | ||
| 6 | * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) | ||
| 7 | * | ||
| 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). | ||
| 12 | * | ||
| 13 | * Derived from "arch/i386/mm/init.c" | ||
| 14 | * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds | ||
| 15 | * | ||
| 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. | ||
| 20 | * | ||
| 21 | */ | ||
| 22 | #include <asm/tlbflush.h> | ||
| 23 | #include <asm/mmu.h> | ||
| 24 | |||
| 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); | ||
| 33 | |||
| 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; | ||
| 38 | |||
| 39 | extern unsigned long total_memory; | ||
| 40 | extern unsigned long total_lowmem; | ||
| 41 | extern int mem_init_done; | ||
| 42 | |||
| 43 | extern PTE *Hash, *Hash_end; | ||
| 44 | extern unsigned long Hash_size, Hash_mask; | ||
| 45 | |||
| 46 | /* ...and now those things that may be slightly different between processor | ||
| 47 | * architectures. -- Dan | ||
| 48 | */ | ||
| 49 | #if defined(CONFIG_8xx) | ||
| 50 | #define flush_HPTE(X, va, pg) _tlbie(va) | ||
| 51 | #define MMU_init_hw() do { } while(0) | ||
| 52 | #define mmu_mapin_ram() (0UL) | ||
| 53 | |||
| 54 | #elif defined(CONFIG_4xx) | ||
| 55 | #define flush_HPTE(X, va, pg) _tlbie(va) | ||
| 56 | extern void MMU_init_hw(void); | ||
| 57 | extern unsigned long mmu_mapin_ram(void); | ||
| 58 | |||
| 59 | #elif defined(CONFIG_FSL_BOOKE) | ||
| 60 | #define flush_HPTE(X, va, pg) _tlbie(va) | ||
| 61 | extern void MMU_init_hw(void); | ||
| 62 | extern unsigned long mmu_mapin_ram(void); | ||
| 63 | extern void adjust_total_lowmem(void); | ||
| 64 | |||
| 65 | #else | ||
| 66 | /* anything except 4xx or 8xx */ | ||
| 67 | extern void MMU_init_hw(void); | ||
| 68 | extern unsigned long mmu_mapin_ram(void); | ||
| 69 | |||
| 70 | /* Be careful....this needs to be updated if we ever encounter 603 SMPs, | ||
| 71 | * which includes all new 82xx processors. We need tlbie/tlbsync here | ||
| 72 | * in that case (I think). -- Dan. | ||
| 73 | */ | ||
| 74 | static inline void flush_HPTE(unsigned context, unsigned long va, | ||
| 75 | unsigned long pdval) | ||
| 76 | { | ||
| 77 | if ((Hash != 0) && | ||
| 78 | cpu_has_feature(CPU_FTR_HPTE_TABLE)) | ||
| 79 | flush_hash_pages(0, va, pdval, 1); | ||
| 80 | else | ||
| 81 | _tlbie(va); | ||
| 82 | } | ||
| 83 | #endif | ||