/* * Declarations of procedures and variables shared between files * in arch/ppc/mm/. * * Derived from arch/ppc/mm/init.c: * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) * * Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au) * and Cort Dougan (PReP) (cort@cs.nmt.edu) * Copyright (C) 1996 Paul Mackerras * * Derived from "arch/i386/mm/init.c" * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * */ #include <linux/mm.h> #include <asm/tlbflush.h> #include <asm/mmu.h> #ifdef CONFIG_PPC_MMU_NOHASH /* * On 40x and 8xx, we directly inline tlbia and tlbivax */ #if defined(CONFIG_40x) || defined(CONFIG_PPC_8xx) static inline void _tlbil_all(void) { asm volatile ("sync; tlbia; isync" : : : "memory"); } static inline void _tlbil_pid(unsigned int pid) { asm volatile ("sync; tlbia; isync" : : : "memory"); } #define _tlbil_pid_noind(pid) _tlbil_pid(pid) #else /* CONFIG_40x || CONFIG_PPC_8xx */ extern void _tlbil_all(void); extern void _tlbil_pid(unsigned int pid); #ifdef CONFIG_PPC_BOOK3E extern void _tlbil_pid_noind(unsigned int pid); #else #define _tlbil_pid_noind(pid) _tlbil_pid(pid) #endif #endif /* !(CONFIG_40x || CONFIG_PPC_8xx) */ /* * On 8xx, we directly inline tlbie, on others, it's extern */ #ifdef CONFIG_PPC_8xx static inline void _tlbil_va(unsigned long address, unsigned int pid, unsigned int tsize, unsigned int ind) { asm volatile ("tlbie %0; sync" : : "r" (address) : "memory"); } #elif defined(CONFIG_PPC_BOOK3E) extern void _tlbil_va(unsigned long address, unsigned int pid, unsigned int tsize, unsigned int ind); #else extern void __tlbil_va(unsigned long address, unsigned int pid); static inline void _tlbil_va(unsigned long address, unsigned int pid, unsigned int tsize, unsigned int ind) { __tlbil_va(address, pid); } #endif /* CONFIG_PPC_8xx */ #if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_PPC_47x) extern void _tlbivax_bcast(unsigned long address, unsigned int pid, unsigned int tsize, unsigned int ind); #else static inline void _tlbivax_bcast(unsigned long address, unsigned int pid, unsigned int tsize, unsigned int ind) { BUG(); } #endif #else /* CONFIG_PPC_MMU_NOHASH */ extern void hash_preload(struct mm_struct *mm, unsigned long ea, unsigned long access, unsigned long trap); extern void _tlbie(unsigned long address); extern void _tlbia(void); #endif /* CONFIG_PPC_MMU_NOHASH */ #ifdef CONFIG_PPC32 extern void mapin_ram(void); extern void setbat(int index, unsigned long virt, phys_addr_t phys, unsigned int size, pgprot_t prot); extern int __map_without_bats; extern unsigned int rtas_data, rtas_size; struct hash_pte; extern struct hash_pte *Hash, *Hash_end; extern unsigned long Hash_size, Hash_mask; #endif /* CONFIG_PPC32 */ extern unsigned long ioremap_bot; extern unsigned long __max_low_memory; extern phys_addr_t __initial_memory_limit_addr; extern phys_addr_t total_memory; extern phys_addr_t total_lowmem; extern phys_addr_t memstart_addr; extern phys_addr_t lowmem_end_addr; #ifdef CONFIG_WII extern unsigned long wii_hole_start; extern unsigned long wii_hole_size; extern unsigned long wii_mmu_mapin_mem2(unsigned long top); extern void wii_memory_fixups(void); #endif /* ...and now those things that may be slightly different between processor * architectures. -- Dan */ #ifdef CONFIG_PPC32 extern void MMU_init_hw(void); extern unsigned long mmu_mapin_ram(unsigned long top); #endif #ifdef CONFIG_PPC_FSL_BOOK3E extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx, bool dryrun); extern unsigned long calc_cam_sz(unsigned long ram, unsigned long virt, phys_addr_t phys); #ifdef CONFIG_PPC32 extern void adjust_total_lowmem(void); extern int switch_to_as1(void); extern void restore_to_as0(int esel, int offset, void *dt_ptr, int bootcpu); #endif extern void loadcam_entry(unsigned int index); extern void loadcam_multi(int first_idx, int num, int tmp_idx); struct tlbcam { u32 MAS0; u32 MAS1; unsigned long MAS2; u32 MAS3; u32 MAS7; }; #endif #if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx) /* 6xx have BATS */ /* FSL_BOOKE have TLBCAM */ /* 8xx have LTLB */ phys_addr_t v_block_mapped(unsigned long va); unsigned long p_block_mapped(phys_addr_t pa); #else static inline phys_addr_t v_block_mapped(unsigned long va) { return 0; } static inline unsigned long p_block_mapped(phys_addr_t pa) { return 0; } #endif