m68knommu: Move __flush_cache_all definition for m54xx in m54xxacr.h
__flush_cache_all for m54xx is intrinsically related to the bit definitions in m54xxacr.h. Move it there from cacheflush_no.h, for easier maintenance. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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@ -5,6 +5,9 @@
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* (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
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*/
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#include <linux/mm.h>
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#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
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#include <asm/m54xxacr.h>
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#endif
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#define flush_cache_all() __flush_cache_all()
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#define flush_cache_mm(mm) do { } while (0)
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@ -27,31 +30,9 @@
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#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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memcpy(dst, src, len)
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#ifndef __flush_cache_all
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static inline void __flush_cache_all(void)
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{
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#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
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/*
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* Use cpushl to push and invalidate all cache lines.
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* Gas doesn't seem to know how to generate the ColdFire
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* cpushl instruction... Oh well, bit stuff it for now.
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*/
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__asm__ __volatile__ (
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"nop\n\t"
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"clrl %%d0\n\t"
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"1:\n\t"
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"movel %%d0,%%a0\n\t"
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"2:\n\t"
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".word 0xf468\n\t"
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"addl #0x10,%%a0\n\t"
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"cmpl #0x00000800,%%a0\n\t"
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"blt 2b\n\t"
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"addql #1,%%d0\n\t"
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"cmpil #4,%%d0\n\t"
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"bne 1b\n\t"
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"movel #0xb6088500,%%d0\n\t"
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"movec %%d0,%%CACR\n\t"
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: : : "d0", "a0" );
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#endif /* CONFIG_M5407 */
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#if defined(CONFIG_M523x) || defined(CONFIG_M527x)
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__asm__ __volatile__ (
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"movel #0x81400100, %%d0\n\t"
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@ -88,5 +69,6 @@ static inline void __flush_cache_all(void)
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: : : "d0" );
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#endif /* CONFIG_M532x */
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}
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#endif /* __flush_cache_all */
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#endif /* _M68KNOMMU_CACHEFLUSH_H */
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@ -40,4 +40,35 @@
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#define ACR_CM 0x00000060 /* Cache mode mask */
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#define ACR_WPROTECT 0x00000004 /* Write protect */
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#ifndef __ASSEMBLY__
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static inline void __m54xx_flush_cache_all(void)
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{
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/*
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* Use cpushl to push and invalidate all cache lines.
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* Gas doesn't seem to know how to generate the ColdFire
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* cpushl instruction... Oh well, bit stuff it for now.
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*/
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__asm__ __volatile__ (
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"nop\n\t"
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"clrl %%d0\n\t"
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"1:\n\t"
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"movel %%d0,%%a0\n\t"
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"2:\n\t"
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".word 0xf468\n\t"
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"addl #0x10,%%a0\n\t"
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"cmpl #0x00000800,%%a0\n\t"
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"blt 2b\n\t"
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"addql #1,%%d0\n\t"
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"cmpil #4,%%d0\n\t"
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"bne 1b\n\t"
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"movel #0xb6088500,%%d0\n\t"
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"movec %%d0,%%CACR\n\t"
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: : : "d0", "a0" );
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}
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#define __flush_cache_all() __m54xx_flush_cache_all()
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#endif /* __ASSEMBLY__ */
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#endif /* m54xxacr_h */
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