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# ifndef _M68KNOMMU_CACHEFLUSH_H
# define _M68KNOMMU_CACHEFLUSH_H
/*
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* ( C ) Copyright 2000 - 2004 , Greg Ungerer < gerg @ snapgear . com >
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*/
# include <linux/mm.h>
# define flush_cache_all() __flush_cache_all()
# define flush_cache_mm(mm) do { } while (0)
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# define flush_cache_dup_mm(mm) do { } while (0)
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# define flush_cache_range(vma, start, end) __flush_cache_all()
# define flush_cache_page(vma, vmaddr) do { } while (0)
# define flush_dcache_range(start,len) __flush_cache_all()
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# define flush_dcache_page(page) do { } while (0)
# define flush_dcache_mmap_lock(mapping) do { } while (0)
# define flush_dcache_mmap_unlock(mapping) do { } while (0)
# define flush_icache_range(start,len) __flush_cache_all()
# define flush_icache_page(vma,pg) do { } while (0)
# define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
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# define flush_cache_vmap(start, end) do { } while (0)
# define flush_cache_vunmap(start, end) do { } while (0)
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# define copy_to_user_page(vma, page, vaddr, dst, src, len) \
memcpy ( dst , src , len )
# define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy ( dst , src , len )
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static inline void __flush_cache_all ( void )
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{
# ifdef CONFIG_M5407
/*
* Use cpushl to push and invalidate all cache lines .
* Gas doesn ' t seem to know how to generate the ColdFire
* cpushl instruction . . . Oh well , bit stuff it for now .
*/
__asm__ __volatile__ (
" nop \n \t "
" clrl %%d0 \n \t "
" 1: \n \t "
" movel %%d0,%%a0 \n \t "
" 2: \n \t "
" .word 0xf468 \n \t "
" addl #0x10,%%a0 \n \t "
" cmpl #0x00000800,%%a0 \n \t "
" blt 2b \n \t "
" addql #1,%%d0 \n \t "
" cmpil #4,%%d0 \n \t "
" bne 1b \n \t "
" movel #0xb6088500,%%d0 \n \t "
" movec %%d0,%%CACR \n \t "
: : : " d0 " , " a0 " ) ;
# endif /* CONFIG_M5407 */
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# if defined(CONFIG_M523x) || defined(CONFIG_M527x)
__asm__ __volatile__ (
" movel #0x81400100, %%d0 \n \t "
" movec %%d0, %%CACR \n \t "
" nop \n \t "
: : : " d0 " ) ;
# endif /* CONFIG_M523x || CONFIG_M527x */
# if defined(CONFIG_M528x)
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__asm__ __volatile__ (
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" movel #0x81000200, %%d0 \n \t "
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" movec %%d0, %%CACR \n \t "
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" nop \n \t "
: : : " d0 " ) ;
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# endif /* CONFIG_M528x */
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# if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272)
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__asm__ __volatile__ (
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" movel #0x81000100, %%d0 \n \t "
" movec %%d0, %%CACR \n \t "
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" nop \n \t "
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: : : " d0 " ) ;
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# endif /* CONFIG_M5206 || CONFIG_M5206e || CONFIG_M5272 */
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# ifdef CONFIG_M5249
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__asm__ __volatile__ (
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" movel #0xa1000200, %%d0 \n \t "
" movec %%d0, %%CACR \n \t "
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" nop \n \t "
: : : " d0 " ) ;
# endif /* CONFIG_M5249 */
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# ifdef CONFIG_M532x
__asm__ __volatile__ (
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" movel #0x81000200, %%d0 \n \t "
" movec %%d0, %%CACR \n \t "
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" nop \n \t "
: : : " d0 " ) ;
# endif /* CONFIG_M532x */
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}
# endif /* _M68KNOMMU_CACHEFLUSH_H */