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/*
* linux/include/asm-arm/proc-fns.h
*
* Copyright (C) 1997 Russell King
*/
#ifndef __ASM_PROCFNS_H
#define __ASM_PROCFNS_H
#include <asm/page.h>
#ifdef __KERNEL__
/* forward-declare task_struct */
struct task_struct;
/*
* Don't change this structure
*/
extern struct processor {
const char *name;
/* MISC
*
* flush caches for task switch
*/
struct task_struct *(*_switch_to)(struct task_struct *prev, struct task_struct *next);
/*
* get data abort address/flags
*/
void (*_data_abort)(unsigned long pc);
/*
* check for any bugs
*/
void (*_check_bugs)(void);
/*
* Set up any processor specifics
*/
void (*_proc_init)(void);
/*
* Disable any processor specifics
*/
void (*_proc_fin)(void);
/*
* Processor architecture specific
*/
union {
struct {
/* CACHE
*
* flush all caches
*/
void (*_flush_cache_all)(void);
/*
* flush a specific page or pages
*/
void (*_flush_cache_area)(unsigned long address, unsigned long end, int flags);
/*
* flush cache entry for an address
*/
void (*_flush_cache_entry)(unsigned long address);
/*
* clean a virtual address range from the
* D-cache without flushing the cache.
*/
void (*_clean_cache_area)(unsigned long start, unsigned long size);
/*
* flush a page to RAM
*/
void (*_flush_ram_page)(unsigned long page);
/* TLB
*
* flush all TLBs
*/
void (*_flush_tlb_all)(void);
/*
* flush a specific TLB
*/
void (*_flush_tlb_area)(unsigned long address, unsigned long end, int flags);
/*
* Set a PMD (handling IMP bit 4)
*/
void (*_set_pmd)(pmd_t *pmdp, pmd_t pmd);
/*
* Set a PTE
*/
void (*_set_pte)(pte_t *ptep, pte_t pte);
/*
* Special stuff for a reset
*/
unsigned long (*reset)(void);
/*
* flush an icached page
*/
void (*_flush_icache_area)(unsigned long start, unsigned long size);
/*
* write back dirty cached data
*/
void (*_cache_wback_area)(unsigned long start, unsigned long end);
/*
* purge cached data without (necessarily) writing it back
*/
void (*_cache_purge_area)(unsigned long start, unsigned long end);
} armv3v4;
struct {
/* MEMC
*
* remap memc tables
*/
void (*_remap_memc)(void *tsk);
/*
* update task's idea of mmap
*/
void (*_update_map)(void *tsk);
/*
* update task's idea after abort
*/
void (*_update_mmu_cache)(void *vma, unsigned long addr, pte_t pte);
/* XCHG
*/
unsigned long (*_xchg_1)(unsigned long x, volatile void *ptr);
unsigned long (*_xchg_2)(unsigned long x, volatile void *ptr);
unsigned long (*_xchg_4)(unsigned long x, volatile void *ptr);
} armv2;
} u;
} processor;
#endif
#endif
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