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d475e3e473
Currently the code to push cache lines is only available to version 4 cores. Version 3 cores may also need to use this if we support copy- back caches on them. Move this code to make it more generic, and useful for all version ColdFire cores. With this in place we can now have a single cache_flush_all() code path that does all the right things on all version cores. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
#ifndef _M68KNOMMU_CACHEFLUSH_H
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#define _M68KNOMMU_CACHEFLUSH_H
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/*
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* (C) Copyright 2000-2010, Greg Ungerer <gerg@snapgear.com>
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*/
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#include <linux/mm.h>
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#include <asm/mcfsim.h>
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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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#define flush_cache_dup_mm(mm) do { } while (0)
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#define flush_cache_range(vma, start, end) do { } while (0)
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#define flush_cache_page(vma, vmaddr) do { } while (0)
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#ifndef flush_dcache_range
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#define flush_dcache_range(start,len) __flush_cache_all()
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#endif
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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#define flush_dcache_page(page) do { } while (0)
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#define flush_dcache_mmap_lock(mapping) do { } while (0)
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#define flush_dcache_mmap_unlock(mapping) do { } while (0)
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#define flush_icache_range(start,len) __flush_cache_all()
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#define flush_icache_page(vma,pg) do { } while (0)
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#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)
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#define flush_cache_vunmap(start, end) do { } while (0)
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#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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memcpy(dst, src, len)
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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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void mcf_cache_push(void);
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static inline void __flush_cache_all(void)
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{
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#ifdef CACHE_PUSH
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mcf_cache_push();
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#endif
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#ifdef CACHE_INVALIDATE
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__asm__ __volatile__ (
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"movel %0, %%d0\n\t"
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"movec %%d0, %%CACR\n\t"
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"nop\n\t"
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: : "i" (CACHE_INVALIDATE) : "d0" );
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#endif
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}
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#endif /* _M68KNOMMU_CACHEFLUSH_H */
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