114cf11afSPaul Mackerras /* 214cf11afSPaul Mackerras * Declarations of procedures and variables shared between files 314cf11afSPaul Mackerras * in arch/ppc/mm/. 414cf11afSPaul Mackerras * 514cf11afSPaul Mackerras * Derived from arch/ppc/mm/init.c: 614cf11afSPaul Mackerras * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) 714cf11afSPaul Mackerras * 814cf11afSPaul Mackerras * Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au) 914cf11afSPaul Mackerras * and Cort Dougan (PReP) (cort@cs.nmt.edu) 1014cf11afSPaul Mackerras * Copyright (C) 1996 Paul Mackerras 1114cf11afSPaul Mackerras * 1214cf11afSPaul Mackerras * Derived from "arch/i386/mm/init.c" 1314cf11afSPaul Mackerras * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds 1414cf11afSPaul Mackerras * 1514cf11afSPaul Mackerras * This program is free software; you can redistribute it and/or 1614cf11afSPaul Mackerras * modify it under the terms of the GNU General Public License 1714cf11afSPaul Mackerras * as published by the Free Software Foundation; either version 1814cf11afSPaul Mackerras * 2 of the License, or (at your option) any later version. 1914cf11afSPaul Mackerras * 2014cf11afSPaul Mackerras */ 2162102307SDavid Gibson #include <linux/mm.h> 2214cf11afSPaul Mackerras #include <asm/mmu.h> 2314cf11afSPaul Mackerras 242a4aca11SBenjamin Herrenschmidt #ifdef CONFIG_PPC_MMU_NOHASH 252a4aca11SBenjamin Herrenschmidt 262a4aca11SBenjamin Herrenschmidt /* 272a4aca11SBenjamin Herrenschmidt * On 40x and 8xx, we directly inline tlbia and tlbivax 282a4aca11SBenjamin Herrenschmidt */ 29968159c0SChristophe Leroy #if defined(CONFIG_40x) || defined(CONFIG_PPC_8xx) 302a4aca11SBenjamin Herrenschmidt static inline void _tlbil_all(void) 312a4aca11SBenjamin Herrenschmidt { 324a082682SBenjamin Herrenschmidt asm volatile ("sync; tlbia; isync" : : : "memory"); 332a4aca11SBenjamin Herrenschmidt } 342a4aca11SBenjamin Herrenschmidt static inline void _tlbil_pid(unsigned int pid) 352a4aca11SBenjamin Herrenschmidt { 364a082682SBenjamin Herrenschmidt asm volatile ("sync; tlbia; isync" : : : "memory"); 372a4aca11SBenjamin Herrenschmidt } 38d4e167daSBenjamin Herrenschmidt #define _tlbil_pid_noind(pid) _tlbil_pid(pid) 39d4e167daSBenjamin Herrenschmidt 40968159c0SChristophe Leroy #else /* CONFIG_40x || CONFIG_PPC_8xx */ 412a4aca11SBenjamin Herrenschmidt extern void _tlbil_all(void); 422a4aca11SBenjamin Herrenschmidt extern void _tlbil_pid(unsigned int pid); 4325d21ad6SBenjamin Herrenschmidt #ifdef CONFIG_PPC_BOOK3E 4425d21ad6SBenjamin Herrenschmidt extern void _tlbil_pid_noind(unsigned int pid); 4525d21ad6SBenjamin Herrenschmidt #else 46d4e167daSBenjamin Herrenschmidt #define _tlbil_pid_noind(pid) _tlbil_pid(pid) 4725d21ad6SBenjamin Herrenschmidt #endif 48968159c0SChristophe Leroy #endif /* !(CONFIG_40x || CONFIG_PPC_8xx) */ 492a4aca11SBenjamin Herrenschmidt 502a4aca11SBenjamin Herrenschmidt /* 512a4aca11SBenjamin Herrenschmidt * On 8xx, we directly inline tlbie, on others, it's extern 522a4aca11SBenjamin Herrenschmidt */ 53968159c0SChristophe Leroy #ifdef CONFIG_PPC_8xx 54d4e167daSBenjamin Herrenschmidt static inline void _tlbil_va(unsigned long address, unsigned int pid, 55d4e167daSBenjamin Herrenschmidt unsigned int tsize, unsigned int ind) 562a4aca11SBenjamin Herrenschmidt { 574a082682SBenjamin Herrenschmidt asm volatile ("tlbie %0; sync" : : "r" (address) : "memory"); 582a4aca11SBenjamin Herrenschmidt } 5925d21ad6SBenjamin Herrenschmidt #elif defined(CONFIG_PPC_BOOK3E) 6025d21ad6SBenjamin Herrenschmidt extern void _tlbil_va(unsigned long address, unsigned int pid, 6125d21ad6SBenjamin Herrenschmidt unsigned int tsize, unsigned int ind); 6225d21ad6SBenjamin Herrenschmidt #else 63d4e167daSBenjamin Herrenschmidt extern void __tlbil_va(unsigned long address, unsigned int pid); 64d4e167daSBenjamin Herrenschmidt static inline void _tlbil_va(unsigned long address, unsigned int pid, 65d4e167daSBenjamin Herrenschmidt unsigned int tsize, unsigned int ind) 66d4e167daSBenjamin Herrenschmidt { 67d4e167daSBenjamin Herrenschmidt __tlbil_va(address, pid); 68d4e167daSBenjamin Herrenschmidt } 69968159c0SChristophe Leroy #endif /* CONFIG_PPC_8xx */ 702a4aca11SBenjamin Herrenschmidt 71e7f75ad0SDave Kleikamp #if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_PPC_47x) 7225d21ad6SBenjamin Herrenschmidt extern void _tlbivax_bcast(unsigned long address, unsigned int pid, 7325d21ad6SBenjamin Herrenschmidt unsigned int tsize, unsigned int ind); 7425d21ad6SBenjamin Herrenschmidt #else 75d4e167daSBenjamin Herrenschmidt static inline void _tlbivax_bcast(unsigned long address, unsigned int pid, 76d4e167daSBenjamin Herrenschmidt unsigned int tsize, unsigned int ind) 772a4aca11SBenjamin Herrenschmidt { 782a4aca11SBenjamin Herrenschmidt BUG(); 792a4aca11SBenjamin Herrenschmidt } 8025d21ad6SBenjamin Herrenschmidt #endif 812a4aca11SBenjamin Herrenschmidt 822a4aca11SBenjamin Herrenschmidt #else /* CONFIG_PPC_MMU_NOHASH */ 832a4aca11SBenjamin Herrenschmidt 84ee4f2ea4SBenjamin Herrenschmidt extern void hash_preload(struct mm_struct *mm, unsigned long ea, 8534eb138eSChristophe Leroy bool is_exec, unsigned long trap); 86ee4f2ea4SBenjamin Herrenschmidt 87ee4f2ea4SBenjamin Herrenschmidt 882a4aca11SBenjamin Herrenschmidt extern void _tlbie(unsigned long address); 892a4aca11SBenjamin Herrenschmidt extern void _tlbia(void); 902a4aca11SBenjamin Herrenschmidt 912a4aca11SBenjamin Herrenschmidt #endif /* CONFIG_PPC_MMU_NOHASH */ 922a4aca11SBenjamin Herrenschmidt 93ab1f9dacSPaul Mackerras #ifdef CONFIG_PPC32 9419f5465eSTrent Piepho 9514cf11afSPaul Mackerras extern void mapin_ram(void); 967c5c4325SBecky Bruce extern void setbat(int index, unsigned long virt, phys_addr_t phys, 975dd4e4f6SMichael Ellerman unsigned int size, pgprot_t prot); 9814cf11afSPaul Mackerras 9914cf11afSPaul Mackerras extern int __map_without_bats; 10014cf11afSPaul Mackerras extern unsigned int rtas_data, rtas_size; 10114cf11afSPaul Mackerras 1028e561e7eSDavid Gibson struct hash_pte; 1038e561e7eSDavid Gibson extern struct hash_pte *Hash, *Hash_end; 10414cf11afSPaul Mackerras extern unsigned long Hash_size, Hash_mask; 10532a74949SBenjamin Herrenschmidt 10632a74949SBenjamin Herrenschmidt #endif /* CONFIG_PPC32 */ 10732a74949SBenjamin Herrenschmidt 108800fc3eeSDavid Gibson extern unsigned long ioremap_bot; 109ab1f9dacSPaul Mackerras extern unsigned long __max_low_memory; 11009b5e63fSKumar Gala extern phys_addr_t __initial_memory_limit_addr; 1112bf3016fSStefan Roese extern phys_addr_t total_memory; 1122bf3016fSStefan Roese extern phys_addr_t total_lowmem; 11399c62dd7SKumar Gala extern phys_addr_t memstart_addr; 114d7917ba7SKumar Gala extern phys_addr_t lowmem_end_addr; 11514cf11afSPaul Mackerras 116de32400dSAlbert Herranz #ifdef CONFIG_WII 117de32400dSAlbert Herranz extern unsigned long wii_hole_start; 118de32400dSAlbert Herranz extern unsigned long wii_hole_size; 119de32400dSAlbert Herranz 120de32400dSAlbert Herranz extern unsigned long wii_mmu_mapin_mem2(unsigned long top); 121de32400dSAlbert Herranz extern void wii_memory_fixups(void); 122de32400dSAlbert Herranz #endif 123de32400dSAlbert Herranz 12414cf11afSPaul Mackerras /* ...and now those things that may be slightly different between processor 12514cf11afSPaul Mackerras * architectures. -- Dan 12614cf11afSPaul Mackerras */ 127a372acfaSChristophe Leroy #ifdef CONFIG_PPC32 12814cf11afSPaul Mackerras extern void MMU_init_hw(void); 129ae4cec47SStephen Rothwell extern unsigned long mmu_mapin_ram(unsigned long top); 130a372acfaSChristophe Leroy #endif 13114cf11afSPaul Mackerras 132a372acfaSChristophe Leroy #ifdef CONFIG_PPC_FSL_BOOK3E 133eba5de8dSScott Wood extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx, 134eba5de8dSScott Wood bool dryrun); 1351dc91c3eSKumar Gala extern unsigned long calc_cam_sz(unsigned long ram, unsigned long virt, 1361dc91c3eSKumar Gala phys_addr_t phys); 13755fd766bSKumar Gala #ifdef CONFIG_PPC32 13814cf11afSPaul Mackerras extern void adjust_total_lowmem(void); 13978a235efSKevin Hao extern int switch_to_as1(void); 1400be7d969SKevin Hao extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu); 14155fd766bSKumar Gala #endif 14278f62237SKumar Gala extern void loadcam_entry(unsigned int index); 143d9e1831aSScott Wood extern void loadcam_multi(int first_idx, int num, int tmp_idx); 14414cf11afSPaul Mackerras 14578f62237SKumar Gala struct tlbcam { 14678f62237SKumar Gala u32 MAS0; 14778f62237SKumar Gala u32 MAS1; 14878f62237SKumar Gala unsigned long MAS2; 14978f62237SKumar Gala u32 MAS3; 15078f62237SKumar Gala u32 MAS7; 15178f62237SKumar Gala }; 15214cf11afSPaul Mackerras #endif 1533084cdb7SChristophe Leroy 1544badd43aSChristophe Leroy #if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx) 1553084cdb7SChristophe Leroy /* 6xx have BATS */ 1563084cdb7SChristophe Leroy /* FSL_BOOKE have TLBCAM */ 1574badd43aSChristophe Leroy /* 8xx have LTLB */ 1583084cdb7SChristophe Leroy phys_addr_t v_block_mapped(unsigned long va); 1593084cdb7SChristophe Leroy unsigned long p_block_mapped(phys_addr_t pa); 1603084cdb7SChristophe Leroy #else 1613084cdb7SChristophe Leroy static inline phys_addr_t v_block_mapped(unsigned long va) { return 0; } 1623084cdb7SChristophe Leroy static inline unsigned long p_block_mapped(phys_addr_t pa) { return 0; } 1633084cdb7SChristophe Leroy #endif 164