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/*
* linux/include/asm-arm/cpu-multi32.h
*
* Copyright (C) 2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASSEMBLY__
#include <asm/memory.h>
#include <asm/page.h>
/* forward-declare task_struct */
struct task_struct;
/*
* Don't change this structure - ASM code
* relies on it.
*/
extern struct processor {
/* MISC
* 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);
/*
* Special stuff for a reset
*/
volatile void (*reset)(unsigned long addr);
/*
* Idle the processor
*/
int (*_do_idle)(int mode);
/*
* Processor architecture specific
*/
struct { /* CACHE */
/*
* flush all caches
*/
void (*clean_invalidate_all)(void);
/*
* flush a specific page or pages
*/
void (*clean_invalidate_range)(unsigned long address, unsigned long end, int flags);
/*
* flush a page to RAM
*/
void (*_flush_ram_page)(void *virt_page);
} cache;
struct { /* D-cache */
/*
* invalidate the specified data range
*/
void (*invalidate_range)(unsigned long start, unsigned long end);
/*
* clean specified data range
*/
void (*clean_range)(unsigned long start, unsigned long end);
/*
* obsolete flush cache entry
*/
void (*clean_page)(void *virt_page);
/*
* clean a virtual address range from the
* D-cache without flushing the cache.
*/
void (*clean_entry)(unsigned long start);
} dcache;
struct { /* I-cache */
/*
* invalidate the I-cache for the specified range
*/
void (*invalidate_range)(unsigned long start, unsigned long end);
/*
* invalidate the I-cache for the specified virtual page
*/
void (*invalidate_page)(void *virt_page);
} icache;
struct { /* TLB */
/*
* flush all TLBs
*/
void (*invalidate_all)(void);
/*
* flush a specific TLB
*/
void (*invalidate_range)(unsigned long address, unsigned long end);
/*
* flush a specific TLB
*/
void (*invalidate_page)(unsigned long address, int flags);
} tlb;
struct { /* PageTable */
/*
* Set the page table
*/
void (*set_pgd)(unsigned long pgd_phys);
/*
* 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);
} pgtable;
} processor;
extern const struct processor arm6_processor_functions;
extern const struct processor arm7_processor_functions;
extern const struct processor sa110_processor_functions;
#define cpu_data_abort(pc) processor._data_abort(pc)
#define cpu_check_bugs() processor._check_bugs()
#define cpu_proc_init() processor._proc_init()
#define cpu_proc_fin() processor._proc_fin()
#define cpu_reset(addr) processor.reset(addr)
#define cpu_do_idle(mode) processor._do_idle(mode)
#define cpu_cache_clean_invalidate_all() processor.cache.clean_invalidate_all()
#define cpu_cache_clean_invalidate_range(s,e,f) processor.cache.clean_invalidate_range(s,e,f)
#define cpu_flush_ram_page(vp) processor.cache._flush_ram_page(vp)
#define cpu_dcache_clean_page(vp) processor.dcache.clean_page(vp)
#define cpu_dcache_clean_entry(addr) processor.dcache.clean_entry(addr)
#define cpu_dcache_clean_range(s,e) processor.dcache.clean_range(s,e)
#define cpu_dcache_invalidate_range(s,e) processor.dcache.invalidate_range(s,e)
#define cpu_icache_invalidate_range(s,e) processor.icache.invalidate_range(s,e)
#define cpu_icache_invalidate_page(vp) processor.icache.invalidate_page(vp)
#define cpu_tlb_invalidate_all() processor.tlb.invalidate_all()
#define cpu_tlb_invalidate_range(s,e) processor.tlb.invalidate_range(s,e)
#define cpu_tlb_invalidate_page(vp,f) processor.tlb.invalidate_page(vp,f)
#define cpu_set_pgd(pgd) processor.pgtable.set_pgd(pgd)
#define cpu_set_pmd(pmdp, pmd) processor.pgtable.set_pmd(pmdp, pmd)
#define cpu_set_pte(ptep, pte) processor.pgtable.set_pte(ptep, pte)
#define cpu_switch_mm(pgd,tsk) cpu_set_pgd(__virt_to_phys((unsigned long)(pgd)))
#define cpu_get_pgd() \
({ \
unsigned long pg; \
__asm__("mrc p15, 0, %0, c2, c0, 0" \
: "=r" (pg)); \
pg &= ~0x3fff; \
(pgd_t *)phys_to_virt(pg); \
})
#endif
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