1c83af5f9d
The more modern ColdFire parts (even if based on older version cores) have separate user and supervisor stack pointers (a7 register). Modify the ColdFire CPU setup and exception code to enable and use this on parts that have it. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
#ifndef _M68KNOMMU_CACHEFLUSH_H
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#define _M68KNOMMU_CACHEFLUSH_H
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/*
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* (C) Copyright 2000-2004, 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_M54xx)
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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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#define flush_cache_dup_mm(mm) do { } while (0)
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#define flush_cache_range(vma, start, end) __flush_cache_all()
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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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#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_M523x) || defined(CONFIG_M527x)
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__asm__ __volatile__ (
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"movel #0x81400110, %%d0\n\t"
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"movec %%d0, %%CACR\n\t"
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"nop\n\t"
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: : : "d0" );
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#endif /* CONFIG_M523x || CONFIG_M527x */
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#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"
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: : : "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"
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"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"
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"movec %%d0, %%CACR\n\t"
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"nop\n\t"
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: : : "d0" );
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#endif /* CONFIG_M5249 */
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#ifdef CONFIG_M532x
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__asm__ __volatile__ (
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"movel #0x81000210, %%d0\n\t"
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"movec %%d0, %%CACR\n\t"
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"nop\n\t"
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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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